More thunderstorms are moving through southern Cook County producing heavy rainfall and gusty winds. At Worth winds gusted to 50 m.p.h.at 3:42 p.m. The severe thunderstorm warning will be in effect until 4:30 p.m. Oak Forest reported a wind gust to 50 m.p.h. at 3:48 p.m.
The heavy thunderstorms that are blasting the Chicago area this afternoon have produced upwards of an inch of rain in less than one hour causing urban type flooding.
The National Weather Service has issued an Urban and Small Stream Flood advisory for portions of western Cook, DuPage, Kane, Kendall and northwestern Will counties in northeast Illinois until 7:15 p.m. this evening.
at 3:20 p.m. the heaviest storms extend from the north side of Chicago southwest through the Joliet area to near Pontiac. The storms are moving to the east. Another area of thunderstorms in moving from Kankakee County into Lake County Indiana.
Shortly after 3 p.m. a line of thunderstorms extended from near Highland Park in southeast Lake County, Illinois southwest through DuPage and Will counties to near Pontiac in Livingston County.
There have been some damaging winds reported with these storms: 62 m.p.h. at Montgomery in Kane County that downed large branches and signs in the area and winds strong enough to topple a 20 foot tall tree were reported near Kankakee.
Heavy rain continues to be the main story from these storms.
At Aurora 1.10 inches of rain fell, most of it in just 30 minutes. Other areas from Batavia to Evanston have reported up to an inch of rain.
A dry August has suddenly taken a turn for the wet as heavy thunderstorms roll across the area.
Batavia reported 1.00 inch of rain in just 30 minutes between 2:15 and 2:45 p.m. this afternoon while Carol Stream was soaked by 0.75 inches. At Carol Stream nearly one third of an inch (0.32″) fell in just 13 minutes. At Yorkville rainfall totaled 0.73″ of rain.
A late report indicates a large tree downed by high winds in Kankakee County at 2:45 p.m.
A wind gust to 62 m.p.h. was reported from near Montgomery, Illinois in Kane County this afternoon near the intersection of Routes 25 and 30 and that triggered the severe thunderstorm warning that was issued for portions of Cook, DuPage, Kane, Kendall and Will counties until 3 p.m.
Thunderstorms erupted across the Chicago area on a very warm and steamy Sunday afternoon bringing heavy downpours to much of the area. Elburn in western Kane County picked up 0.84 inches of rain while just north of Chicago, a spotter in Evanston reported 0.80 inches of rain. The rain has caused a delay in the start of the Cubs-Pittsburgh game at Wrigley Field.
A severe thunderstorm warning has been issued for a new batch of storms moving east from the Fox Valley toward the city. The warning will be in effect until 3 p.m. for western Cook, DuPage, southeast Kane, Kendall and northwest Will counties in northeast Illinois. Strong, gusty winds, hail and torrential rain may accompany these storms.
Parched gardens, browning lawns and cracked ground are a testament to just how dry it’s been in the Chicago area the last two months. Despite a record wet year in 2008 and a soggy spring and early summer, the Chicago area has turned seriously dry. To date, August has produced a scant 0.60 inches of rain, after the driest July in 18 years produced just 1.53 inches. All that may change Monday as a cold front moves into the area, poised to trigger thunderstorms in an air mass saturated with nearly 2.25 inches of atmospheric moisture. Beyond that, a series of weather disturbances promises several more rounds of thunderstorms Wednesday and Thursday.
Tropics come alive
The 2009 Atlantic hurricane season took off with a bang Saturday. Tropical storms Ana and Bill developed and are moving toward the Caribbean. By Thursday, Ana is forecast to be approaching the Florida Keys just below hurricane strength and Bill is expected to strengthen into a hurricane near the Virgin Islands and Puerto Rico.