Southern Indiana Weather Spotter's Reference
Current Mesoscale Discussions for the USA
Checks for Severe Potential, Heavy Rain, Heavy Snow, and Freezing Rain
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MESOSCALE DISCUSSION 1951 NWS Storm Prediction Center Norman OK 1210 PM CDT Wed Aug 12 2026 AREAS AFFECTED...portions of western New York into the Northern Tier of Pennsylvania CONCERNING...Severe potential...Watch unlikely VALID 121710Z - 121915Z PROBABILITY OF WATCH ISSUANCE...20 percent SUMMARY...Isolated to widely scattered thunderstorms will pose an isolated risk for large hail and DAMAGING WIND GUSTS this afternoon from the Niagra Frontier into the Northern Tier of PA. DISCUSSION...Isolated to widely scattered thunderstorms are ongoing across southern Ontario and portions of the Niagra Frontier as of 1710 UTC, with this activity forecast to develop ....... more

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MESOSCALE DISCUSSION 1950 NWS Storm Prediction Center Norman OK 1132 AM CDT Wed Aug 12 2026 AREAS AFFECTED...southern Georgia into northeast Florida CONCERNING...Severe potential...Watch unlikely VALID 121632Z - 121900Z PROBABILITY OF WATCH ISSUANCE...5 percent SUMMARY...The potential for a few DAMAGING WIND GUSTS is expected to increase this afternoon. A watch is not anticipated due to the limited areal coverage of the threat. DISCUSSION...Forcing for ascent within the southwest flank of an MCV moving through the lower Savannah River Valley will combine with broadly confluent low-level flow to yield scattered thunderstorms this afternoon. Area VWPs indicate ....... more