Rockford Scanner™: NWS Issues A Flash Flood Watch




 

FLASH FLOOD WATCH FROM 7PM CDT SAT UNTIL 1AM CDT MON …FLASH FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH LATE SUNDAY NIGHT…

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, DE KALB, LA SALLE, LEE, OGLE, AND WINNEBAGO. IN NORTHEAST ILLINOIS, COOK, DUPAGE, GRUNDY, KANE, KENDALL, LAKE IL, MCHENRY, AND WILL. *

FROM THIS EVENING THROUGH LATE SUNDAY NIGHT * WIDESPREAD SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP TONIGHT AND CONTINUE INTO SUNDAY AND SUNDAY EVENING. THESE STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL, WITH RATES APPROACHING 1.5 TO 2 INCHES PER HOUR AT TIMES.

THIS EXPECTED HEAVY RAINFALL FALLING IN A SHORT DURATION AND OVER LOCATIONS THAT HAVE EXPERIENCED RECENT HEAVY RAINFALL MAY LEAD TO ADDITIONAL FLASH FLOODING. RAINFALL TOTALS OF 2 TO 4 INCHES, WITH LOCALLY HIGHER AMOUNTS, ARE POSSIBLE BY SUNDAY EVENING. *

THIS HEAVY RAINFALL WILL LIKELY LEAD TO ADDITIONAL RIVER RISES INTO THE UPCOMING WEEK, ESPECIALLY ACROSS THE DES PLAINES, FOX, PECATONICA, AND ROCK RIVER BASINS. 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™: Strong Winds, Icy Roadways Expected This Evening Once Again





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Police are saying: As the temperatures plunge with the windchill this afternoon, rain that has already fallen will start to refreeze on the roadways this afternoon and evening. Travel will become extremely difficult especially on the County’s Secondary Roads. Please refrain from travel unless it’s absolutely necessary as First Responders are having trouble traveling on the ice covered roadways.

From the NWS:

A robust cold front crossing the area mid to late-afternoon will usher in gusty winds and rapidly falling temperatures this evening. West winds will gusty to 45-50 mph late this afternoon and evening. Power outages will be possible, especially where recent freezing rain has left a coating of ice on trees and power-lines. A rapid drop in temperatures behind the front will result in the potential for flash freezing of standing water and wet surfaces this evening.

Exercise extra caution if traveling this evening, including during the commute, by being alert for rapidly changing road conditions and strong cross-winds on north-south roadways.






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Rockford Scanner™: Holy Cow, That Is A lot Of Snow On The Way!


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A major early season winter storm will bring heavy snowfall to portions of the area today through tonight. During the height of the storm across northern Illinois this evening into the overnight, snowfall rates of 1-2 inches or more per hour will be likely along with very strong northerly winds gusting up to 40-45 mph, and likely higher near Lake Michigan. During this time, blizzard-like conditions will be possible, which will cause dangerous and even life-threatening travel conditions. Furthermore, the heavy wet snow and wind may down tree limbs onto power lines, causing power outages.

Areas southeast of I-55 and into northwest Indiana will be latest to transition to snow this evening into tonight, but can still expect a period of adverse winter weather into Monday morning.

Impacts to the Monday morning commute are now likely over northeast Illinois and northwest Indiana due to an overall slower progression of the winter storm.





Rockford Scanner™: Flash Flood Watch



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



 


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



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



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



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



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™: Stephenson County Tornado Warning Update



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!