Windy.com Temps | Gusts | WU KORD KPWK

CLICK for this month's BIG night sky ...

RADAR FULL MAP SCREEN

NEXRAD

STORMTRACK

Cardinal SAT

CHGOWX.COM



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.

ARLINGTON HEIGHTS WEATHER
O'Hare International Airport KORD (Arlington Heights South)
Chicago Executive Airport KPWK (Arlington Heights North)

Sunday, February 16, 2025

SPC Feb 16, 2025 1300 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1300Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0656 AM CST Sun Feb 16 2025

Valid 161300Z - 171200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PARTS OF
NORTH FLORIDA INTO SOUTHEAST GEORGIA AND SOUTH CAROLINA...

...SUMMARY...
Scattered damaging winds and a brief tornado or two remain possible
through about midday from north Florida to parts of South Carolina.
Isolated damaging winds and a brief tornado may also occur northward
into parts of the Mid-Atlantic region through the afternoon.

...Southeast to the Mid-Atlantic...
As an upper trough pivots northeastward from the Southeast to
Mid-Atlantic today, an extensive QLCS in progress this morning will
continue moving quickly eastward across north FL, southeast GA, and
SC. Greater low-level moisture and related weak instability is
present over parts of north FL and vicinity ahead of the line and a
surface cold front. Boundary layer moisture and buoyancy quickly
drop off with northward extent into GA/SC/NC. Still, very strong
low-level flow remains present across these regions, with a 50-70+
kt low-level jet supporting ample 0-3 km SRH. Current expectations
are for the northern portion of the line to gradually outpace
appreciable surface-based instability, while the southern portion
becomes increasingly displaced from the large-scale ascent
associated with the departing upper trough. Even so, scattered
severe/damaging winds and perhaps a brief tornado or two should
remain possible through about midday given the strength of the
low-level flow present. See Mesoscale Discussion 108 for more
near-term details.

The northern portion this QLCS should remain generally elevated atop
a near-surface stable layer in the lee of the Appalachians in NC to
VA for the next few hours. But, it should eventually impinge on weak
surface-based buoyancy later in the morning across the coastal
Carolinas to southeastern VA. With very strong low-level flow/shear
expected to be in place across these regions, any intensification of
the thin convective line may yield occasional damaging winds and
perhaps even a brief tornado. Even so, most guidance continues to
suggest the overall severe threat will remain isolated/marginal from
roughly NC northward into the Mid-Atlantic.

..Gleason/Broyles.. 02/16/2025


Read more CHECK UPDATE ZOOM GRAPHIC


http://dlvr.it/TJ10nN
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)