LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1136 PM CST Fri Nov 10 2023
Valid 111200Z - 121200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
A few lightning flashes will be possible across portions of northern
Washington state, and near the central Gulf Coast area.
...Discussion...
Threat for lightning is negligible across most of the CONUS
Saturday. The only exceptions are near the central Gulf Coast and
over parts of northern WA. In both of these areas lightning should
still be quite sparse.
Strong 500mb speed max will translate across WA early in the period
before the associated short-wave trough advances into the northern
Rockies later in the afternoon. Steeping lapse rates north of this
jet and cooling thermodynamic profiles will lead to weak buoyancy
primarily during the first half of the period. Scattered low-topped
convection will develop along the front, and within the post-frontal
air mass. Forecast soundings suggest the most robust updrafts could
penetrate levels required for a few flashes of lightning.
Farther south along the Gulf Coast, scattered weak convection should
be noted at times within a broad zone of weak warm advection. A few
hundred J/kg of MUCAPE may develop if lifting parcels around 1 km
AGL; however, most updrafts will struggle to attain heights
necessary for lightning. Even so, an isolated thunderstorm or two
can not be ruled out from southeast LA toward the western FL
Panhandle.
..Darrow/Moore.. 11/11/2023
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/SyhPjt
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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)
Saturday, November 11, 2023
SPC Nov 11, 2023 0600 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)