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 0391 NWS Storm Prediction Center Norman OK 0318 PM CDT Sun Apr 12 2026 AREAS AFFECTED...parts of northwestern Texas through western Oklahoma CONCERNING...Severe potential...Watch unlikely VALID 122018Z - 122245Z PROBABILITY OF WATCH ISSUANCE...20 percent SUMMARY...Isolated to widely scattered thunderstorm activity may develop and pose a risk for a couple of strong downbursts approaching or exceeding severe limits through 6-7 PM CDT. DISCUSSION...Substantive destabilization is ongoing along and ahead of the dryline, which continues to gradually mix eastward across the Texas South Plains, and now through west Oklahoma. Even so, convergence ....... more

MESOSCALE DISCUSSION 0390 NWS Storm Prediction Center Norman OK 0303 PM CDT Sun Apr 12 2026 AREAS AFFECTED...portions of northeastern Minnesota into far northwestern Wisconsin CONCERNING...Severe potential...Watch unlikely VALID 122003Z - 122200Z PROBABILITY OF WATCH ISSUANCE...20 percent SUMMARY...A conditional hail/tornado threat will accompany any storm that develops and becomes sustained, though confidence in this scenario is currently low. DISCUSSION...A mid-level shortwave trough is currently overspreading the Upper MS Valley region, prompting the eastward progression of a surface low over northwestern Minnesota. Low-level moisture convergence (evident ....... more

MESOSCALE DISCUSSION 0389 NWS Storm Prediction Center Norman OK 0219 PM CDT Sun Apr 12 2026 AREAS AFFECTED...parts of central Texas CONCERNING...Severe potential...Watch unlikely VALID 121919Z - 122115Z PROBABILITY OF WATCH ISSUANCE...20 percent SUMMARY...A couple of severe storms with potential to produce severe hail may gradually develop through 4-6 PM CDT. It is not yet clear that a severe weather watch will be needed, but trends will continue to be monitored for this possibility. DISCUSSION...Beneath the belt of 40-50 kt southwesterly 500 mb flow overspreading central Texas, deepening convective development is evident near and west of the I-35 corridor, ....... more