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Archives for Chicago's hourly weather data updated 24-48 hours after end of each day. MOBILE CHGOWX.COM ...
Weather conditions on bar directly above are near Lakefront. Weather conditions with Moon are O'Hare (official).

Thursday, November 11, 2021

SPC Nov 11, 2021 0700 UTC Day 2 Convective Outlook

SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1224 AM CST Thu Nov 11 2021 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Friday. ...Synopsis... An upper low over the Great Lakes region and its attendant trough centered on the mid/lower MS Valley will pivot eastward to the eastern U.S. on Friday. At the surface, a cold front is forecast to extend from central NY/PA southward to the VA/NC Piedmont then southwest to the FL Panhandle early in the period. The front should push offshore the Atlantic and Gulf coasts during the afternoon and sag southward across the FL Peninsula through the remainder of the period. Isolated thunderstorms will be possible ahead of the front, but weak instability and poor lapse rates will limit severe potential from the Carolinas into the Mid-Atlantic. Instability will be greater across FL where better boundary-layer moisture will be in place. However, weak forcing and modest vertical shear, along with poor midlevel lapse rates will limit storm organization/intensity and severe thunderstorms are not expected. ..Leitman.. 11/11/2021 Read more LIVE: spc.noaa.gov
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