LIVE MAP (ABOVE) ... SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1029 AM CST Thu Nov 21 2024
Valid 211630Z - 221200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe thunderstorms are not expected today and tonight.
...Synopsis...
A deep midlevel low, characterized by 500-mb temperatures around
-32C, will move from the Great Lakes into the Mid-Atlantic through
the period. These cold midlevel temperatures and strong height falls
accompanying the midlevel low may promote isolated lightning flashes
embedded in showers across the central Appalachians this afternoon.
Over coastal southern New England, low-level warm advection north of
a related occluded surface low will also support isolated
thunderstorms, given weak elevated instability. Most of this
activity should remain offshore. Isolated thunderstorms are also
possible over immediate coastal areas of WA, where forcing for
ascent in the left exit region of a jet streak is overlapping deep
tropospheric moisture/weak instability.
..Weinman.. 11/21/2024
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TGJx5S
Windy.com Temps | Gusts | WU KORD KPWK |
CLICK for this month's BIG night sky ... | RADAR FULL MAP SCREEN |
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MOBILE DEVICE? Turn sideways. Weather conditions directly above are near Lakefront. Top tabs refer to O'Hare (official).
Archives for the SPC Convective Outlook are updated daily (approximately) with a live map at the beginning of each article. Follow the link at the end of the article to check for current updates on the NOAA/NWS Storm Prediction Center website. Also, see Archives for Chicago's hourly weather data on CARDINAL NEWS Magazine.
CONVECTIVE | TORNADO | WIND | HAIL
O'Hare International Airport KORD
(Arlington Heights South)
Chicago Executive Airport KPWK
(Arlington Heights North)
Thursday, November 21, 2024
SPC Nov 21, 2024 1630 UTC Day 1 Convective Outlook
SUNRISE AND SUNSET TIMES IN UTC (if you're not logged in to Google)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)