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 1493 NWS Storm Prediction Center Norman OK 0120 PM CDT Sat Jul 04 2026 AREAS AFFECTED...parts of the Texas Panhandle into South Plains...far northwest Oklahoma...far east-central New Mexico CONCERNING...Severe potential...Watch possible VALID 041820Z - 042115Z PROBABILITY OF WATCH ISSUANCE...60 percent SUMMARY...Storms are likely to form before 21Z across the Texas Panhandle, and possibly extending into northwest Oklahoma and east-central New Mexico. Gusty winds will be likely, with a few gusts over 70 mph expected. Isolated marginal hail may occur as well. DISCUSSION...Strong heating persists within the surface trough, with towering CU ....... more

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MESOSCALE DISCUSSION 1492 NWS Storm Prediction Center Norman OK 1236 PM CDT Sat Jul 04 2026 AREAS AFFECTED...Parts of western/central PA...eastern/central OH...and far northern WV CONCERNING...Severe potential...Watch likely VALID 041736Z - 042000Z PROBABILITY OF WATCH ISSUANCE...80 percent SUMMARY...The risk of severe thunderstorms capable of producing widely scattered wind damage will increase over the next few hours. A watch is likely this afternoon. DISCUSSION...Boundary-layer cumulus is gradually deepening along a lake breeze boundary southeast of Lake Erie, and within a zone of broadly confluent low-level flow extending into central OH. Continued ....... more

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MESOSCALE DISCUSSION 1491 NWS Storm Prediction Center Norman OK 1149 AM CDT Sat Jul 04 2026 AREAS AFFECTED...Much of Virginia...Maryland...and eastern West Virginia, CONCERNING...Severe potential...Severe Thunderstorm Watch likely VALID 041649Z - 041915Z PROBABILITY OF WATCH ISSUANCE...95 percent SUMMARY...Thunderstorms will increase in coverage and intensity while developing eastward through the afternoon. The primary concern will be scattered to numerous DAMAGING WIND GUSTS. A Severe Thunderstorm Watch is likely. DISCUSSION...Widely scattered thunderstorms are evolving along the high terrain in WV and southwestern VA this afternoon. Continued diurnal ....... more

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MESOSCALE DISCUSSION 1490 NWS Storm Prediction Center Norman OK 1124 AM CDT Sat Jul 04 2026 AREAS AFFECTED...north-central Illinois into Indiana CONCERNING...Severe potential...Watch possible VALID 041624Z - 041930Z PROBABILITY OF WATCH ISSUANCE...60 percent SUMMARY...A cluster of STRONG TO SEVERE storms is expected to develop after 18Z over central and north-central Illinois, moving into Indiana later this afternoon. DAMAGING GUSTS will be possible. DISCUSSION...Visible satellite and surface observations show a low and MCV moving out of eastern IA into northern IL. Analyzed streamlines show substantial convergence into northwest IL currently, with modest ....... more