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 1254 NWS Storm Prediction Center Norman OK 1229 PM CDT Mon Jun 22 2026 AREAS AFFECTED...Southeast Wyoming into adjacent portions of Nebraska...Colorado...South Dakota...and Montana CONCERNING...Severe potential...Watch likely VALID 221729Z - 221930Z PROBABILITY OF WATCH ISSUANCE...80 percent SUMMARY...Thunderstorm development appears likely in the next couple of hours across southeast Wyoming. Storms that develop will likely mature into supercells posing a threat for very large hail; watch issuance will likely be needed as convection begins to develop. DISCUSSION...Latest GOES imagery shows a small zone of deepening cumulus within a weak ....... more

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MESOSCALE DISCUSSION 1253 NWS Storm Prediction Center Norman OK 1225 PM CDT Mon Jun 22 2026 AREAS AFFECTED...portions of the central Appalachians into the Mid-Atlantic CONCERNING...Severe potential...Watch likely VALID 221725Z - 221930Z PROBABILITY OF WATCH ISSUANCE...80 percent SUMMARY...Thunderstorms will increase in coverage and intensity over the next couple of hours. Scattered DAMAGING WIND GUSTS, isolated hail and perhaps a tornado will be possible through evening. A severe thunderstorm watch will likely be needed by 19z. DISCUSSION...Thunderstorms over the higher terrain of WV and vicinity are gradually increasing in intensity this afternoon as gradual ....... more