Less than 10 minutes left of a NWS Tornado Watch, and the second wave of storms headed northward toward Arlington Heights is dissipating. The NWS Office Chicago stated at 8:25 p.m. that the severe threat continues to diminish and that the forecast is still on track for a Tornado Watch expiration of 9:00 p.m.
The most recent Tornado Warning Monday night near Chicagoland was activated for the area of Mendota, Illinois, southwest of Aurora. The Tornado Warning was issued at 6:49 p.m. and expired at 7:15 p.m. The NWS Chicago considered conditions still existed for short-lived rotation areas as late as the posting of their Area Forecast Discussion released at 6:36 p.m., but described an atmospheric instability that would become less effective, and that any tornadoes and strong winds would be short-lived.
Weather Radar) shows disintegrating weather radar signatures moving north. The once solid radar signature was scattered and shrinking as it approached Arlington Heights and nearby northwest suburbs.
See also Arlingtoncardinal.com/clouds
Some showers and thunderstorms remain possible this evening, but will be weakening as they move through. Drier conditions for Tuesday with seasonably warm temperatures through the rest of the week. Additional shower and storm chances return on Wednesday and Friday. #ilwx #INwx pic.twitter.com/bNpc9jTz9d
— NWS Chicago (@NWSChicago) October 12, 2021
Showers and storms continue to push through the area this evening with some the storms being severe. Recent trends do show the line to be weakening with time, but the potential for gusty winds, heavy rain, and possibly a brief tornado is still possible. #ilwx #INwx pic.twitter.com/xwwEXokIjO
— NWS Chicago (@NWSChicago) October 12, 2021
Tornado Warning including Mendota IL until 7:15 PM CDT pic.twitter.com/ZOR936k6wn
— NWS Chicago (@NWSChicago) October 11, 2021
O’HARE FORECAST …
Tonight: Periods of showers and thunderstorms before 1am, then a chance of showers. Some storms could be severe, with large hail and damaging winds. Low around 60. South southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday: Mostly cloudy, with a high near 71. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night: Partly cloudy, with a low around 56. West southwest wind 5 to 10 mph.
Wednesday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 73. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 61. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Thursday: A 20 percent chance of showers. Partly sunny, with a high near 72.
Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 53.
Friday: A chance of showers. Partly sunny, with a high near 66.
Friday Night: A chance of showers. Mostly cloudy, with a low around 48.
Saturday: A slight chance of showers. Mostly sunny, with a high near 60.
Saturday Night: Mostly clear, with a low around 46.
Sunday: Sunny, with a high near 63.
Sunday Night: Mostly clear, with a low around 45.
Monday: Sunny, with a high near 65.
LAKE TEMPS …
SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
913 AM CDT Mon Oct 11 2021
LAKE MICHIGAN WATER TEMPERATURES…
CHICAGO SHORE……….67.
CHICAGO CRIB……….66.
CHICAGO BUOY……….67.
WILMETTE BUOY……….66.
WAUKEGAN BUOY……….M.
WINTHROP HARBOR BUOY……….65.
MICHIGAN CITY……….65.
MICHIGAN CITY BUOY………M.
SOUTH MID LAKE BUOY……….66.
NORTH MID LAKE BUOY……….64.
&&
M IS FOR MISSING DATA THAT IS NORMALLY AVAILABLE.
THE MICHIGAN CITY WATER TEMPERATURE SENSOR IS LOCATED AT A WATER
INTAKE ONE MILE OFFSHORE AND 60 FEET BELOW WATER SURFACE. IT IS READ
EVERY DAY OF THE YEAR.
october.chicagoweatherstation.com
Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.
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