LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0636 PM CST Wed Feb 19 2025
Valid 200100Z - 201200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
The risk for thunderstorms appears negligible across the U.S.
tonight.
...01Z Update...
...Florida...
Pre-frontal thunderstorm development over the eastern/southeastern
Gulf has diminished with the passage of an apparent supporting
mid-level short wave trough, which is now in the process of
progressing east of the south Atlantic coast. As surface
cyclogenesis commences and proceeds offshore of southern Mid
Atlantic coastal areas later this evening and overnight, the
trailing surface cold front may advance into the southern peninsula
of Florida by 12Z Thursday. However, lingering warm/dry layers
aloft across this region will tend to minimize the risk for new
thunderstorm development.
...Great Basin...
Beneath the mid-level cold pool of a vigorous short wave impulse
progressing into portions of the Great Basin, destabilization aided
by daytime heating has been sufficient to support weak convective
development across portions of north central Nevada. While
thermodynamic profiles have become supportive of some lightning
during the past few hours, potential for additional convection
capable of producing lightning is expected to become increasingly
negligible with diurnal boundary-layer cooling.
..Kerr.. 02/20/2025
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TJ4Zz4
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)
Wednesday, February 19, 2025
SPC Feb 20, 2025 0100 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)