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 1603 NWS Storm Prediction Center Norman OK 1252 PM CDT Sun Jul 12 2026 AREAS AFFECTED...portions of the lower Mississippi Valley into the Southeast CONCERNING...Severe potential...Watch unlikely VALID 121752Z - 121945Z PROBABILITY OF WATCH ISSUANCE...5 percent SUMMARY...Widely scattered strong to occasionally severe thunderstorms may bring a low probability risk for localized damaging downburst wind gusts. DISCUSSION...Increasingly agitated cumulus, and a few isolated thunderstorms, were evident on visible satellite and regional radar imagery across the lower Mississippi Valley and portions of the Southeast/Gulf Coast as of 1750 UTC. This ....... more

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MESOSCALE DISCUSSION 1602 NWS Storm Prediction Center Norman OK 1250 PM CDT Sun Jul 12 2026 AREAS AFFECTED...portions of the Upper Peninsula of Michigan CONCERNING...Severe potential...Watch unlikely VALID 121750Z - 121945Z PROBABILITY OF WATCH ISSUANCE...20 percent SUMMARY...Additional thunderstorms will spread across portions of the Upper Peninsula of Michigan and northern parts of Lake Michigan over the next few hours. Isolated large hail and gusty winds are possible with this activity, though watch issuance is unlikely. DISCUSSION...Additional thunderstorms have been showing some intensification over Lake Superior as they approach central portions of the ....... more

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MESOSCALE DISCUSSION 1601 NWS Storm Prediction Center Norman OK 1224 PM CDT Sun Jul 12 2026 AREAS AFFECTED...portions of eastern Georgia into much of South Carolina CONCERNING...Severe potential...Watch possible VALID 121724Z - 121930Z PROBABILITY OF WATCH ISSUANCE...40 percent SUMMARY...Thunderstorm coverage will increase over the next 1-2 hours across portions of Georgia and South Carolina, bringing a threat for DAMAGING WIND GUSTS. A Severe Thunderstorm Watch may eventually be needed. DISCUSSION...A hot, humid air mass remains in place across much of the Southeast, with temperatures noted to have already warmed into the low/mid 90s across portions of ....... more

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MESOSCALE DISCUSSION 1600 NWS Storm Prediction Center Norman OK 1212 PM CDT Sun Jul 12 2026 AREAS AFFECTED...northeast TX vicinity into northern LA CONCERNING...Severe potential...Watch unlikely VALID 121712Z - 121915Z PROBABILITY OF WATCH ISSUANCE...20 percent SUMMARY...Scattered to numerous thunderstorms are expected through the afternoon. Sporadic strong gusts are possible, though severe potential is expected to remain limited. DISCUSSION...A very moist airmass characterized by 70s F dewpoints is in place across the ArkLaTex vicinity this afternoon. Strong heating of this very moist airmass along a west to east oriented surface boundary is supporting ....... more

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MESOSCALE DISCUSSION 1599 NWS Storm Prediction Center Norman OK 1200 PM CDT Sun Jul 12 2026 AREAS AFFECTED...portions of North Florida and the Florida Panhandle into southwestern Georgia and southeastern Alabama CONCERNING...Severe potential...Watch unlikely VALID 121700Z - 121900Z PROBABILITY OF WATCH ISSUANCE...20 percent SUMMARY...Isolated DAMAGING WIND GUSTS and perhaps an instance or two of small hail will be possible over the next several hours. DISCUSSION...Scattered thunderstorms have developed along the Gulf Coast sea breeze from the Florida Panhandle into North Florida amid a hot and humid air mass, with a couple of gusts measured in the 40-45 mph ....... more