LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1156 PM CST Thu Mar 09 2023
Valid 101200Z - 111200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
SOUTHEASTERN ALABAMA AND SOUTHERN GEORGIA...AND INTO NORTHERN
FLORIDA...
...SUMMARY...
A band of storms forecast to move across parts of southern Georgia,
adjacent southeastern Alabama and into northern Florida Friday
afternoon may produce locally strong wind gusts, while a few
stronger cells may also prove capable of producing marginally severe
hail.
...Synopsis...
Relatively low-amplitude flow aloft will largely prevail across the
U.S. through the period, though some intensification of a trough
crossing the eastern U.S. is expected with time.
As this trough modestly strengthens, an accompanying surface low is
forecast to cross the upper Ohio Valley/central Appalachians region,
before redeveloping offshore over the Gulf Stream overnight.
Meanwhile, a cold front associated with this low is forecast to
shift southeastward across the southeastern U.S., and will be
accompanied by showers and thunderstorms through much of the period,
before weakening across Florida late.
...Southeastern Alabama/southern Georgia into northern Florida...
Showers and thunderstorms are forecast to be ongoing at the start of
the period from the Carolinas to East Texas, moving southeastward
with time in conjunction with the advance of the surface cold front.
While the storms are expected to be elevated above a stable
boundary layer early in the period, some heating/surface-based
destabilization is progged across parts of southern Alabama, and
into southern Georgia and northern Florida ahead of the convection.
This should permit storms to become surface-based, as they shift
southward into the early evening hours before weakening.
In the meantime, weakly veering but increasing wind speeds with
height will result in shear profiles sufficient for organized
storms. While degree of surface-based CAPE may remain limited, a
few stronger storms appear likely. As such, attendant risk for
strong wind gusts locally, and potential for marginally severe hail,
will likely evolve. Instability concerns preclude slight risk
addition at this time.
..Goss/Supinie.. 03/10/2023
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/SkfwdS
Windy.com Temps | Gusts | WU KORD KPWK |
CLICK for this month's BIG night sky ... | RADAR FULL MAP SCREEN |
---|
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)
Friday, March 10, 2023
SPC Mar 10, 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)