TORNADO WATCH UNTIL 10 PM TONIGHT
Due to very fast storm motion and the likelihood of the most intense storms in the region occurring after dark, spotters should use extreme caution.”
“THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS, NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE…This Afternoon and Tonight.
WEATHER HAZARDS EXPECTED:
• Significant Thunderstorm Risk…with an associated:
– Extreme Hail Risk…larger than golf ball size.
– Elevated Tornado Risk.
– Significant Thunderstorm Wind Damage Risk.
– Elevated Flooding Risk.
Scattered thunderstorms will develop by mid to late afternoon. Some of these storms may produce very large hail.
Thunderstorms will increase in coverage after dark this evening, and some severe storms are likely.
Storms will eventually develop into a complex ahead of a cold front which will push east across the outlook area overnight.
The threat of large hail will exist across the entire outlook area with storms that develop this afternoon and tonight, and some of these storms could produce very large hail bigger than golf ball size.
The threat of damaging winds and tornadoes will
exist primarily south of Interstate 88 this evening into the early overnight areas, with the highest risk along and south of Interstate 80.
.DAYS TWO THROUGH SEVEN…Wednesday through Monday.
• Elevated Snow Risk.
• Limited Snow Risk.
Sunday Night and Monday…
• Limited Thunderstorm Risk.
Light accumulation of snow is forecast across far northern Illinois on Wednesday.
GENERAL STORM MOTION OF THE DAY:
Moving to the northeast or east at 65 MPH.”
Tornado Watch 42 is in effect until 1000 PM CST for the following locations IL . Illinois counties included are Adams Boone Brown Bureau Carroll Cass Champaign Christian Clark Clay Coles Cook Crawford Cumberland De Kalb De Witt Douglas dupage Edgar Effingham Ford Fulton Grundy Hancock Henderson Henry Iroquois Jasper Jo Daviess Kane Kankakee Kendall Knox Lake Lawrence La Salle Lee Livingston Logan Macon Marshall Mason McDonough McHenry McLean Menard Mercer Morgan Moultrie Ogle Peoria Piatt Pike Putnam Richland Rock Island Sangamon Schuyler Scott Shelby Stark Stephenson Tazewell Vermilion Warren Whiteside will Winnebago Woodford