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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.


Monday, March 27, 2023

SPC Mar 27, 2023 0600 UTC Day 2 Convective Outlook

LIVE MAP (ABOVE) ... SPC 0600Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1227 AM CDT Mon Mar 27 2023 Valid 281200Z - 291200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF SOUTHERN LOUISIANA...MISSISSIPPI...ALABAMA...GEORGIA...AND NORTHERN FLORIDA... ...SUMMARY... Isolated strong to severe thunderstorms are possible through Tuesday afternoon across portions of the central Gulf coast into southern Georgia and northern Florida. Strong gusts and hail will be the main hazards with these storms. ...Central Gulf Coast/Southeast Vicinity... An upper shortwave trough oriented from the Mid-MS Valley to the Ozark Plateau vicinity will shift east through the period, moving offshore the Mid-Atlantic/Carolinas coast by early Wednesday. This will result in modest height falls/cooling aloft over portions of the central Gulf Coast/Southeast. Moderately strong deep-layer west/southwesterly flow will persist across the southern states. At the surface, a cold front is forecast to extend for the SC coast west/southwest through southern GA/AL/MS/LA to near the TX coast/south TX vicinity. A seasonally moist airmass will be in place ahead of the front and thunderstorms are likely to be ongoing Tuesday morning along the front. Most guidance is in good agreement with the location of the front and ongoing convection, which should quickly shift offshore from southeast LA/far southern MS/AL by late morning to midday. However, the 00z HRRR is a bit faster, depicting an MCS just offshore over the north-central Gulf, with storms mainly impacting parts of southern GA/northern FL. Depending on the location of the front and ongoing morning convection, at least some risk for locally damaging gusts and hail will persist over the central Gulf coast/southern GA/northern FL into Tuesday afternoon. ..Leitman.. 03/27/2023 Read more CHECK UPDATE ZOOM GRAPHIC
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