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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.

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Sunday, March 8, 2026

SPC Mar 8, 2026 1630 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1630Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0119 PM CDT Sun Mar 08 2026

Valid 081630Z - 091200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE
CAROLINAS/SOUTHEAST VIRGINIA AND SOUTH TEXAS...

...SUMMARY...
Isolated, marginally severe thunderstorms are possible this
afternoon and early evening across parts of the Carolinas to
southeast Virginia. A few strong to locally severe storms capable of
hail may linger across South Texas today.

...Carolinas and Southeast Virginia...
At midday, temperatures continue to warm through the 70s F, nearing
80F, across the Piedmont and coastal plain ahead of a cold front, in
the presence of middle 60s F dewpoints. This will continue to yield
weakening inhibition and modest buoyancy (i.e. MLCAPE around
500-1000 J/kg) this afternoon, with increasing storm development
anticipated by mid/late afternoon. The combination of modest
buoyancy, moderate shear, and ascent along and ahead of the cold
front will likely yield a few stronger, more organized storms. Given
the steep low-level lapse rates, locally strong outflow/damaging
gusts are possible within any more organized and persistent
updrafts, particularly with development across the coastal plain.

...South Texas...
A couple of strong/locally severe storms capable of large hail may
linger today within an elevated supercell-favorable environment.
Effective shear exceeds 40 kt and elevated MUCAPE is estimated to be
around 1000-1500 J/kg based on available 12z observed soundings and
latest SPC Mesoanalysis data.

..Guyer/Halbert.. 03/08/2026


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