Impressive round of lightning and thunder with storms in the northwest suburbs passed overhead, moving to the east-northeast at about 45 MPH. Two or three additional rounds of frequent lightning and thunder are likely to […]
Note: The storm associated with this Tornado Warning appears to be maintaining a course west-to-east and well north of Lake Cook Road. Remain alert to a possible tornado in Cook County, but it appears that […]
There is a possibility of increasing coverage and intensity of thunderstorms this morning through afternoon Sunday. The greatest chance of severe weather and heavy rain is between 7:30 a.m. and 10:00 a.m. A Severe Thunderstorm […]
Severe thunderstorms could develop quickly with severe lightning, hail and damaging winds. Although thunderstorms are not a sure thing for all areas in northeast Illinois, there could be dangerous lightning. The greatest chance for storms […]
Storms may continue to develop in southern Wisconsin and move into northeast Illinois, but the trend may involve a weakening of the thunderstorm cells. Some loud thunder with sporadic cloud-to-ground lightning was observed between 11:30 […]
The most likely time for a good round of lightning and thunder is about 9:00 p.m. to 10:00 p.m. Wednesday in the northwest suburbs. Periodic rain and thunder may continue until about 5:00 a.m. Total […]
High snowfall rates and gusty winds as high as 37 MPH are forecast for Saturday. Temperatures will from 43°F at 9:00 a.m. to 34°F by 5:00 p.m. Snow is expected to begin about noon with […]
Scattered thunderstorms are expected to increase, especially south of Chicago and east of I-55. Thunderstorms are most likely between noon and 3:00 p.m. There was a tornado warning in Livingston County near Pontiac and Dwight, […]
Tornado Warning BULLETIN – EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Chicago/Romeoville Il 139 PM CDT MON SEP 3 2018 UPDATE: Tornado Warning for central McHenry County was canceled by 2:03 p.m. Tornado Warning […]
SEVERE THUNDERSTORM WATCH & FLASH FLOOD WATCH GOES East weather satellite shows a big blow up of thunderstorms as they head toward northern Illinois from Iowa Tuesday night. Severe thunderstorms are expected to arrive in […]
FLASH FLOOD WATCH in effect from June 26, 01:00 PM CDT until June 27, 01:00 AM CDT Convection is the keyword for this afternoon’s forecast that could bring numerous severe thunderstorms, the development of super […]
EXCESSIVE HEAT WARNING EXPIRED 7 PM, DIMINISHED THUNDERSTORMS TONIGHT, LOW 65°F AS SOON MIDNIGHT A line of thunderstorms moving south-southeast across northern Illinois slowed down and weakened after about 5:40 p.m. while the outflow boundary […]
EXCESSIVE HEAT WARNING ENDING SOON, THUNDERSTORMS TONIGHT Humidity has been high today with Dew Points staying in the low 70s through about 3:00 p.m. The high temperature at O’Hare at 2:51 p.m. and 4:51 p.m. […]
Overnight, a large, mature Mesoscale Convective System (MCS) — a group of thunderstorms in one complex — extended from north of Milwaukee, Wisconsin to south of Danville, Illinois and moved into Arlington Heights and the […]
FLASH FLOOD WARNING 4:42 AM UNTIL 7:45 CDT SATURDAY JUNE 9 2018 Northern Cook County and far southeast Lake County has been hit the hardest overnight by thunderstorms and medium to heavy rainfall. Flash flooding, […]
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