Rockford Scanner®: Very Cold Temps Tonight






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Across the region overnight, clear skies and diminishing winds set the stage for favorable radiational cooling. Anticipate lows falling into the teens area-wide overnight with some spots falling into the single digits. Afternoon highs in the low to mid 30s will continue to be much colder than normal Wednesday.

If you live in a mobile home, you might want to let your water drip from the faucets so they don’t freeze. Also bundle up the little ones (and yourself) when you go out in the morning!

 







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Author: Rickie Traeger at http://RickieTraeger.com

Rockford Scanner®: Snow And Colder Temps On The Way






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Light snow is expected to spread across the area late Thursday evening and continue into Friday morning.

Around 1 inch of snow, especially on elevated and grassy surfaces, is expected, though locally higher amounts are possible.

Snow showers will then continue into Friday evening before clearing skies give way to a mostly sunny day on Saturday.

Conditions will be quite cold for early November, with daytime high temperatures running as much as 15-20F below normal.







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Rockford Scanner®
Author: Rickie Traeger at http://RickieTraeger.com

Rockford Scanner™: Todays Weather & Halloween Weather From The NWS

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From the NWS: Look for a soaking rain tonight behind a cold front that will bring an end to today’s mild temperatures. A return to dry weather is expected tomorrow with seasonable temperatures.

There is a small chance of some showers moving across the region this morning into the early afternoon, mainly north of I-80. Any rain through early afternoon would be short lived in any one location. More widespread rain will overspread the region from the north late this afternoon into this evening. Away from the rain, look for mild temps today with highs near 60 along the Wisconsin border to around 70 south of I-80.

 







Rockford Scanner™: Heavy Rains Tonight, Possible Flooding

Rockford Scanner



 

Thunderstorms will spread northward across north central Illinois and parts of northeast Illinois this evening. Some of these will have heavy rain, especially over north central Illinois where a Flash Flood Watch is in effect.

Temperatures will slowly rise later tonight with a warm day ahead on Monday (highs in the mid 80s!)

 

 

 







Rockford Scanner™: Heavy Rain & Possible Flooding

Rockford Scanner



Clusters of showers and thunderstorms will continue to develop and lift east-northeast across northern IL overnight. Heaviest rainfall will likely be along and north of the I-88 corridor, though areas farther south will also see storms. A flash flood watch is in effect for much of northern IL through midday Saturday. Rainfall amounts of 1-2 inches, and likely some localized higher amounts, can be expected. This will likely result in flooding across portions of the area, as well as rises on area creeks and rivers.


No big changes to going forecast through tonight, though did
update digital forecast grids earlier to boost evening pops with
cluster currently moving across northern IL.

Surface frontal boundary remains just south of the forecast area
this evening, stretching roughly from near Kansas City to
Bloomington IL and Indianapolis. Cluster of storms were tracking
north of the front across north central IL at 745 pm, in
association with a low-amplitude short wave propagating though the
southwest flow aloft. While heavy rainfall remains the primary
concern, especially later tonight, cell about to exit southeast
Lee county has exhibited a bit of an elevated wind signature,
aided by stronger flow aloft, and presence of 40-50 kt deep layer
shear. Cooler, stable boundary layer will likely limit much of
this from reaching the surface, supported by decreasing inbound
winds in the lowest radar cuts as it approaches KLOT. Will
continue to need to monitor cells tracking along/south of the I-80
corridor this evening however, closer to the surface boundary.

Of course the real concern is for training thunderstorms into the
overnight hours, as southwest flow persists atop the low level
frontal zone, downstream of an upper trough translating across the
Plains. Region from southern IA into northern IL appears most at
risk for repeated rounds of storms overnight, highlighted by
current flash flood watch. No changes anticipated, with areal
extent of the watch looking good at this time.

 







Rockford Scanner™: Chance For Severe Weather Later Today

Rockford Scanner



 

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM EASTERN IOWA INTO NORTHERN ILLINOIS…

If any watches are put out, be sure to listen to the Northern Illinois SKYWARN Net on 147.195 


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Lake IN-Porter-Newton-Jasper-Benton-
256 PM CDT Mon Oct 1 2018 /356 PM EDT Mon Oct 1 2018/

This Hazardous Weather Outlook is for portions of North Central
Illinois…Northeast Illinois and Northwest Indiana.

.DAY ONE…Tonight.

Weather hazards expected…

Significant Thunderstorm Risk…with an associated:
Elevated Tornado risk.
Elevated hail risk…up to quarter size.
Elevated damaging wind risk…up to 70 mph.
Elevated Flooding Risk.

DISCUSSION…

Widely scattered thunderstorms may form along a warm front south
of Interstate 88 late this afternoon or early evening. These
storms may produce large hail, damaging winds, and tornadoes.
Additional thunderstorms ahead of an approaching cold front will
enter north-central Illinois mid to late this evening. These
storms will be capable of producing damaging winds. In addition,
multiple rounds of storms could result in localized flooding.


…SUMMARY…
A cluster of severe storms capable of all hazards may occur between
about 4 to 10 PM CDT across eastern Iowa into northern Illinois.

No changes were made to the severe aspect of the outlook at 20Z.

Elevated thunderstorms currently persist from northern IA into WI,
with the warm front situated from south-central IA into northern IL
as of 20Z. This boundary may shift slightly north toward the WI
border later today, as heating and mixing of the boundary layer
persist upstream. With time, storms are expected to become more
surface based over eastern IA, with strong westerly winds aloft
aiding wind gusts. Veering of the winds with height may also support
a corridor of supercell potential. Relatively weak instability will
remain a mitigating factor, but a brief tornado and hail will also
be possible.

..Jewell.. 10/01/2018

.PREV DISCUSSION… /ISSUED 1126 AM CDT Mon Oct 01 2018/

…Midwest including eastern Iowa/northern Illinois…
A relatively confined regional corridor of severe potential is
expected later this afternoon and evening. A warm front will
continue to make a slow northward shift across southern/eastern IA
and northern IL, but perhaps not reach quite as far north as
previously thought owing to persistent low clouds and scattered
precipitation to the north of the boundary. Regardless, a shortwave
trough over SD at mid-morning will continue eastward and modestly
amplify, which will influence weak surface wave development along
the front from northeast KS toward the IA/IL Quad Cities and
eventually Chicagoland tonight.

Strengthening southwesterly winds just above the surface will
continue to transport a relatively moist air mass northeastward,
with low to middle 60s F surface dewpoints becoming increasingly
common by evening within the slow-northward-developing warm sector.
While mid-level lapse rates will not be particularly steep, a plume
of somewhat steeper mid-level lapse rates noted in the 12Z Omaha
observed sounding will advect east-northeastward and coincide with
Midwest areas along/just north of the surface front.

Given some residual capping and limited forcing into the warm
sector, the main severe risk should be focused relatively close to
the advancing surface wave and front late this afternoon and
evening, with near-surface-based storm intensification most likely
to initially occur across east-central IA. Relatively strong
deep-layer/low-level shear and modest buoyancy (1000 J/kg MLCAPE or
less) will support the possibility of both supercells and bowing
segments. Severe hail may occur initially and the potential for a
tornado or two will exist given the increasingly enlarged low-level
hodographs. Ultimately, damaging winds could become the most common
hazard as bow development occurs this evening.

 

 







Rockford Scanner™: Flash Flooding & More Rain

Rockford Scanner



 

As the storms rolled through the area it brought heavy rains to the area.  Several area were reporting some flash flooding.  No injuries have been reported that we are aware of yet.

UPDATE from the village of Winnebago: Water has receded and the roadway is clear.

Elida Street between Runyard and School Streets is flooded at the moment and the street is being blocked off. All other north and south streets are clear of any obstruction. Please modify your route. Through the Village.

More rain is in the forecast:

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

  Elevated Thunderstorm Risk.
  Elevated Flooding Risk.
  Limited Excessive heat Risk.

DISCUSSION...

Scattered thunderstorms are expected today and tonight. The
greatest coverage of storms along with the greatest flood threat
is expected along and north of the Interstate 88 corridor, though
isolated storms are possible farther south.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
  Limited Thunderstorm Risk.
  Limited Excessive Heat Risk.
Wednesday...
  Elevated Flooding Risk.
  Elevated Thunderstorm Risk.
  Limited Excessive Heat Risk.
  High Swim Risk
Thursday through Saturday...
  Limited Thunderstorm Risk.
  High Swim Risk
Sunday...
  Limited Thunderstorm Risk.

DISCUSSION:

There will be periodic thunderstorm chances throughout the week. In
addition, hot and humid conditions are also expected into Wednesday.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the northeast 30 to 40 mph.

 

 








Rockford Scanner™: Flash Flood Watch

Rockford Scanner



Flood Watch
National Weather Service Chicago IL  238 PM CDT Sun Sep 2 2018

…Thunderstorms This Evening and Tonight…

.Scattered thunderstorms are expected to develop this afternoon
and expand in coverage across far northern Illinois this evening.
A very moist airmass will allow for efficient and heavy rainfall
rates. Thunderstorms may repeatedly move across some areas, many
of which saw very heavy rainfall last night, resulting in flash
flooding.

Winnebago-Boone-McHenry-Lake IL-Ogle-
Including the cities of Rockford, Belvidere, Woodstock, Waukegan,
and Oregon
238 PM CDT Sun Sep 2 2018

…FLASH FLOOD WATCH IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH
MONDAY MORNING…

The National Weather Service in Chicago has issued a

* Flash Flood Watch for portions of north central Illinois and
northeast Illinois, including the following areas, in north
central Illinois, Boone, Ogle, and Winnebago. In northeast
Illinois, Lake IL and McHenry.

* From 7 PM CDT this evening through Monday morning

* Repeated rounds of thunderstorms producing very heavy rainfall
may result in flash flooding.

* Expect rises on area rivers and streams. Flooding of low lying
areas and roadside ditches is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.








Rockford Scanner™: Severe Thunderstorm Warning

Rockford Scanner



 


Severe Thunderstorm Warning

BULLETIN – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Chicago/Romeoville Il
1053 PM CDT SAT SEP 1 2018

The National Weather Service in Chicago has issued a

* Severe Thunderstorm Warning for…
Central Ogle County in north central Illinois…
Southwestern Winnebago County in north central Illinois…

* Until 1145 PM CDT

* At 1053 PM CDT, severe thunderstorms were located along a line
extending from near German Valley to near Mount Morris to near
Oregon, moving northeast at 35 mph.

HAZARD…60 mph wind gusts.

SOURCE…Radar indicated.

IMPACT…Expect damage to roofs, siding, and trees.

* Severe thunderstorms will be near,
Byron around 1105 PM CDT.
Pecatonica around 1110 PM CDT.
Winnebago and Stillman Valley around 1120 PM CDT.
Rockford and Rockford Airport around 1125 PM CDT.
Loves Park around 1145 PM CDT.

Other locations impacted by these severe thunderstorms include Davis
Junction, Leaf River, New Millford and Adeline.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.





Rockford Scanner™: Flash Flood Watch

Rockford Scanner



Flood Watch National Weather Service Chicago IL 307 PM CDT Sat Sep 1 2018

…Additional Thunderstorms This Evening and Overnight…

Thunderstorms are expected to redevelop this evening and tonight across far northern Illinois. A tropical, moisture rich air mass will promote efficient and heavy rainfall rates.

Thunderstorms may regenerate or move over areas already impacted by heavy rainfall resulting in flash flooding.

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook- Including the cities of Rockford, Belvidere, Woodstock, Waukegan, Oregon, Dixon, DeKalb, Aurora, Elgin, Wheaton, and Chicago 307 PM CDT Sat Sep 1 2018

…FLASH FLOOD WATCH IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH SUNDAY MORNING..

The National Weather Service in Chicago has issued a:

* Flash Flood Watch for portions of north central Illinois and northeast Illinois, including the following areas, in north central Illinois, Boone, DeKalb, Lee, Ogle, and Winnebago. In northeast Illinois, Cook, DuPage, Kane, Lake IL, and McHenry.
* From 7 PM CDT this evening through Sunday morning
*Repeated rounds of thunderstorms producing very heavy rainfall may result in flash flooding. * Expect rises on area rivers and streams.

PRECAUTIONARY/PREPAREDNESS ACTIONS… A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.








Rockford Scanner™: Areal Flood Advisory

Rockford Scanner



Flood Advisory
National Weather Service Chicago/Romeoville Il
858 PM CDT TUE AUG 28 2018

Winnebago IL-Boone IL-
858 PM CDT TUE AUG 28 2018

The National Weather Service in Chicago has issued a

* Urban and Small Stream Flood Advisory for…
Central Winnebago County in north central Illinois…
Northwestern Boone County in north central Illinois…

* Until midnight CDT

* At 857 PM CDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream flooding in
the advisory area. Up to two inches of rain have already fallen
and additional rainfall is expected.

* Some locations that will experience flooding include…
Rockford, Loves Park, Machesney Park, Roscoe, Poplar Grove, Cherry
Valley, Winnebago, Pecatonica, Timberlane and Caledonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

Be especially cautious at night when it is harder to recognize the
dangers of flooding.








Rockford Scanner™: Special Weather Statement

Rockford Scanner



SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
829 PM CDT TUE AUG 28 2018

ILZ003-004-290215-
BOONE IL-WINNEBAGO IL-
829 PM CDT TUE AUG 28 2018

…SIGNIFICANT WEATHER ADVISORY FOR WINNEBAGO AND BOONE COUNTIES
UNTIL 915 PM CDT…

AT 828 PM CDT, DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG
A LINE EXTENDING FROM NEAR DURAND TO NEAR BYRON. MOVEMENT WAS EAST AT
50 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE…
ROCKFORD, BELVIDERE, LOVES PARK, MACHESNEY PARK, ROCKTON, ROCKFORD
AIRPORT, ROSCOE, POPLAR GROVE, CHERRY VALLEY, WINNEBAGO, PECATONICA,
DURAND, CAPRON, TIMBERLANE, CALEDONIA, LAKE SUMMERSET, DAVIS JUNCTION
AND NEW MILLFORD.

INCLUDING THE FOLLOWING INTERSTATES…
I-39 BETWEEN MILE MARKERS 115 AND 123.
I-90 BETWEEN MILE MARKERS 48 AND 74.

THIS INCLUDES…BOONE COUNTY FAIRGROUNDS, ROCK CUT STATE PARK, ROCK
VALLEY COLLEGE, ROCKFORD AVIATORS BASEBALL, ROCKFORD SPEEDWAY, AND
WINNEBAGO COUNTY FAIRGROUNDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS, AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
NORTH CENTRAL ILLINOIS.

LAT…LON 4243 8871 4215 8871 4215 8917 4221 8917
4220 8939 4245 8940
TIME…MOT…LOC 0128Z 286DEG 42KT 4238 8935 4212 8931








Rockford Scanner™: Flash Flood Watch

Rockford Scanner



Flood Watch
National Weather Service Chicago IL
804 PM CDT Tue Aug 28 2018

..FLASH FLOOD WATCH IN EFFECT UNTIL 7 AM CDT WEDNESDAY…

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Lake IN-
Including the cities of Rockford, Belvidere, Woodstock, Waukegan,
Oregon, Dixon, DeKalb, Aurora, Elgin, Wheaton, Chicago, Ottawa,
Oswego, Morris, Joliet, and Gary
804 PM CDT Tue Aug 28 2018

…FLASH FLOOD WATCH IN EFFECT UNTIL 7 AM CDT WEDNESDAY…

The National Weather Service in Chicago has issued a

* Flash Flood Watch for portions of Illinois and northwest
Indiana, including the following areas, in Illinois, Boone,
Cook, DeKalb, DuPage, Grundy, Kane, Kendall, La Salle, Lake
IL, Lee, McHenry, Ogle, Will, and Winnebago. In northwest
Indiana, Lake IN.

* Until 7 AM CDT Wednesday

* Periods of heavy rain associated with strong thunderstorms are
expected overnight tonight. Given recent rainfall, anticipated
high rainfall rates and high soil moisture, the thunderstorms
may produce localized flash flooding.

* Rivers and streams in urbanized areas may see rapid rises as
the heavy rainfall quickly goes into runoff.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.








Rockford Scanner™: Severe Thunderstorm Watch

Rockford Scanner



NWS Storm Prediction Center Norman OK
730 PM CDT Tue Aug 28 2018

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Northeastern Illinois, Extreme northwestern Indiana, and Lake Michigan

* Effective this Tuesday night from 730 PM until Midnight CDT.

* Primary threats include…
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible

SUMMARY…

A well-developed bow echo (now crossing the Mississippi
River from Iowa into northwestern Illinois) should persist for
another few hours while moving across northern/northeastern
Illinois, immediately north of a residual outflow boundary. The
bowing segment will be accompanied by a continued threat for
damaging winds, and perhaps some hail with the strongest embedded
updrafts.

The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 60 miles southwest of
Rockford IL to 90 miles east northeast of Marseilles IL. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9).

PRECAUTIONARY/PREPAREDNESS ACTIONS…

REMEMBER…A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.








Rockford Scanner™: National Weather Service Has Issued A Public Information Statement

Rockford Scanner



 

National Weather Service Has Issued A Public Information Statement

Public Information Statement
National Weather Service Quad Cities IA/IL
721 AM CDT Tue Aug 28 2018

Severe Thunderstorms are possible this afternoon and evening 
across the area.

Thunderstorms are expected to be fast-moving this afternoon,
which means you will have less time than usual to act, and every 
second will count. Do not wait to hear thunder or see the storm.
Go immediately to a sturdy structure when a warning is issued!

Now is the time to prepare for storms.  If you intend to move
vehicles or other property into shelter, do it now.  This
is also the time to move pets or livestock to shelter as
needed.

Remember that a watch means conditions are favorable for severe
weather.  It is your head's up that severe weather is possible in
the next several hours.  A warning means that severe weather is
occurring or about to occur very shortly and that you need to
take immediate action to protect your life.

Whether you are at work, home, school, or anywhere else, identify
your safe area now and be alert for warnings. The safest place to
be during a tornado or extreme storm is in a sturdy structure
away from windows in the basement or on the lowest floor in an
interior room such as a bathroom or closet.

If you are in a mobile home, camping, or outdoors, you should
consider going to a sturdy structure long before the storms
arrive.

When a warning is issued or severe weather threatens, immediately
seek shelter inside a sturdy building away from windows.  If a
tornado is possible, go to the safe area in the building
immediately!

If you hear outdoor warning sirens, first go to your safe area,
then seek more information.

 

 

 

 

 








Rockford Scanner™: Special Weather Statement From The National Weather Service

Rockford Scanner



 

 

 

Special Weather Statement
National Weather Service Chicago/Romeoville Il
830 PM CDT SUN AUG 26 2018
 
ILZ003-270215-
Winnebago IL-
830 PM CDT SUN AUG 26 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN WINNEBAGO COUNTY
UNTIL 915 PM CDT...

At 829 PM CDT, Doppler radar was tracking a strong thunderstorm near 
Dakota, or 11 miles north of Freeport, moving east northeast at 40 
mph. This may clip far northwest Winnebago County.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Durand and Lake Summerset. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

 

 








Rockford Scanner™: Elevated Tornado Risk Today

Rockford Scanner





Mesoscale Discussion 1329
   NWS Storm Prediction Center Norman OK
   0446 PM CDT Mon Aug 20 2018

   Areas affected...Portions of far eastern IA...northern IL...and far
   southern WI

   Concerning...Severe potential...Watch unlikely 

   Valid 202146Z - 202345Z

   Probability of Watch Issuance...20 percent

   SUMMARY...A narrow spatial window remains for a brief tornado or two
   with a band of thunderstorms developing northeastward late this
   afternoon into early evening. Watch issuance is unlikely.

   DISCUSSION...A broken line of thunderstorms has recently developed
   across far eastern IA into parts of northern IL along an occluding
   warm front. Limited diurnal heating to the north of this boundary
   has allowed for weak instability to develop late this afternoon,
   with 21Z RAP mesoanalysis estimating MLCAPE up to 1000 J/kg is
   present. Both the low and mid-level flow is not overly strong across
   this region as an occluding upper low continues to develop slowly
   eastward across the Upper Midwest this evening. Still, VWPs from
   several radars just to the north of the warm front (KMKX/KLOT) do
   show a veering and modestly strengthening wind profile in the 0-3 km
   AGL layer. Coupled with a north-northeasterly storm motion, this
   low-level veering is supporting around 100 to locally 150 m2/s2 of
   effective SRH. A couple of cells within the broken line have
   exhibited low-level rotation, with one report of a tornado in
   Clinton County IA at 2049Z. Current expectations are for a brief
   tornado or two to remain possible with these low-topped
   thunderstorms for the next couple of hours. However, the airmass
   with northward extent (into southern WI) quickly becomes less
   unstable due to persistent cloud cover. Therefore, the overall
   limited spatial and temporal nature of the severe threat will
   probably remain too marginal to justify watch issuance, although
   radar and mesoscale trends will be closely monitored

 


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Lake IN-Porter-Newton-Jasper-Benton-

This Hazardous Weather Outlook is for portions of North Central
Illinois…Northeast Illinois and Northwest Indiana.

.DAY ONE…This Afternoon and Tonight.

Weather hazards expected…

Significant Thunderstorm Risk…with an associated:
Elevated Tornado risk.
Limited damaging wind risk…up to 60 mph.
Limited Flooding Risk.
High Swim Risk

DISCUSSION…

Thunder will be limited with most of the shower activity through early
afternoon. Expect occasional showers and thunderstorms this afternoon.
from northwest Illinois arcing southeast to portions of east central Illinois.
Conditions could become favorable for a couple of these storms to
potentially become tornadic from mid afternoon until around sunset.
There is also a low damaging wind threat. The greatest risk of severe
weather is south and west of a line from Dixon to Joliet to Fowler Indiana.

 

 








Rockford Scanner™: Stephenson County Tornado Warning Update

Rockford Scanner



Evening everyone, we just wanted to give you all a quick update and round up of the facts.  The Tornado Warning for Stephenson County was allowed to expire around 8:45 pm as the storm quickly showed signs of weakening.  The initial warning came out around 8:27 pm.  According to the NWS in Quad Cities, the warning was issued solely based on the sheriff report of a tornado near Elroy, IL.  At this time there have been no confirmed reports of damage, but if that does change we will be sure to update this post.

It is hard to confirm if there was, in fact, a tornado there or not at this time.  Radar scans from the NWS Quad Cities would be scanning around 5,100 ft with the cloud ceiling in Freeport around that time being down around 1,500 ft.  Meaning the radar was not scanning the lowest elevations and would not be able to see any low-level rotation if it were there.  If we get any updates, we will be sure to update this post!

 








Rockford Scanner™: DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM

Rockford Scanner



 

 

 

DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING

The National Weather Service in Chicago has issued a Dense Fog
Advisory, which is in effect until 9 AM CDT this morning.

* VISIBILITY…Less than a quarter mile.

* TIMING…Through the morning commute.

* IMPACTS…Low visibilities will create hazardous travel
conditions. Visibility may change suddenly over very short
distances.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Dense Fog Advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving…slow down…
use your headlights…and leave plenty of distance ahead of you.

 

 








Rockford Scanner™: Two Active Meteor Showers, Fireballs And Lots Of Meteors!



Alpha Capricornids
Active from July 11th to August 10th , 2018

Peak night
Jul 26-27 2018

The Alpha Capricornids are active from July 11 through August with a “plateau-like” maximum centered on July 29. This shower is not very strong and rarely produces in excess of five shower members per hour. What is notable about this shower is the number of bright fireballs produced during its activity period. This shower is seen equally well on either side of the equator.

Radiant: 20:28 -10.2° – ZHR: 5 – Velocity: 15 miles/sec (slow – 24km/sec) – Parent Object: 169P/NEAT


Perseids
Active from July 13th to August 26th , 2018

Peak night
Aug 11-12 2018

The Perseids are the most popular meteor shower as they peak on warm August nights as seen from the northern hemisphere. The Perseids are active from July 13 to August 26. They reach a strong maximum on August 12 or 13, depending on the year. Normal rates seen from rural locations range from 50-75 shower members per hour at maximum.The Persesids are particles released from comet 109P/Swift-Tuttle during its numerous returns to the inner solar system. They are called Perseids since the radiant (the area of the sky where the meteors seem to originate) is located near the prominent constellation of Perseus the hero when at maximum activity.

Radiant: 03:12 +57.6° – ZHR: 100 – Velocity: 37 miles/sec (swift – 60km/sec) – Parent Object: 109P/Swift-Tuttle

Late evening to dawn on August 11, 12 and 13, 2018, the Perseids
The Perseid meteor shower is perhaps the most beloved meteor shower of the year for the Northern Hemisphere. It’s a rich meteor shower, and it’s steady. Best of all, the slender waxing crescent moon will set at early evening, providing deliciously dark skies for this year’s Perseid meteors. These swift and bright meteors radiate from a point in the constellation Perseus the Hero. As with all meteor shower radiant points, you don’t need to know Perseus to watch the shower; instead, the meteors appear in all parts of the sky. These meteors frequently leave persistent trains. Perseid meteors tend to strengthen in number as late night deepens into midnight, and typically produce the most meteors in the wee hours before dawn. In 2018, the peak night of this shower will be totally free of moonlight. Predicted peak in 2018: the night of August 12-13, but try the nights before and after, too, from late night until dawn.

All you need to Know: Perseid meteor shower

 


 

What is a meteor shower?
A meteor shower is a spike in the number of meteors or “shooting stars” that streak through the night sky.

Most meteor showers are spawned by comets. As a comet orbits the Sun it sheds an icy, dusty debris stream along its orbit. If Earth travels through this stream, we will see a meteor shower. Although the meteors can appear anywhere in the sky, if you trace their paths, the meteors in each shower appear to “rain” into the sky from the same region.

Meteor showers are named for the constellation that coincides with this region in the sky, a spot known as the radiant. For instance, the radiant for the Leonid meteor shower is in the constellation Leo. The Perseid meteor shower is so named because meteors appear to fall from a point in the constellation Perseus.

How can I best view a meteor shower?
Get away from the glow of city lights and toward the constellation from which the meteors will appear to radiate.

For example, drive north to view the Leonids. Driving south may lead you to darker skies, but the glow will dominate the northern horizon, where Leo rises. Perseid meteors will appear to “rain” into the atmosphere from the constellation Perseus, which rises in the northeast around 11 p.m. in mid-August.

After you’ve escaped the city glow, find a dark, secluded spot where oncoming car headlights will not periodically ruin your sensitive night vision. Look for state or city parks or other safe, dark sites.

Once you have settled at your observing spot, lie back or position yourself so the horizon appears at the edge of your peripheral vision, with the stars and sky filling your field of view. Meteors will instantly grab your attention as they streak by.

How do I know the sky is dark enough to see meteors?
If you can see each star of the Little Dipper, your eyes have “dark adapted,” and your chosen site is probably dark enough. Under these conditions, you will see plenty of meteors.

What should I pack for meteor watching?
Treat meteor watching like you would the 4th of July fireworks. Pack comfortable chairs, bug spray, food and drinks, blankets, plus a red-filtered flashlight for reading maps and charts without ruining your night vision. Binoculars are not necessary. Your eyes will do just fine.

https://stardate.org/nightsky/meteors


Meteor Shower Calendar