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 0732 NWS Storm Prediction Center Norman OK 0326 PM CDT Thu May 09 2024 AREAS AFFECTED...From far northeast Texas across southern Arkansas CONCERNING...Severe potential...Watch likely VALID 092026Z - 092300Z PROBABILITY OF WATCH ISSUANCE...80 percent SUMMARY...Storms capable of large hail are expected to move east across the ArkLaTex and into much of southern Arkansas through evening. DISCUSSION...Surface analysis shows an extensive stationary front across northern TX and into southern AR and toward the MS/TN border. South of this boundary, a very moist and unstable air mass exists with MLCAPE exceeding 4000 J/kg. While low-level winds are ....... more

MESOSCALE DISCUSSION 0731 NWS Storm Prediction Center Norman OK 0306 PM CDT Thu May 09 2024 AREAS AFFECTED...Central/Upper OH Valley CONCERNING...Severe potential...Watch unlikely VALID 092006Z - 092130Z PROBABILITY OF WATCH ISSUANCE...5 percent SUMMARY...Isolated hail of 0.75 to 1.25 inches and locally damaging wind gusts from 45 to 60 mph will be possible with lower-topped scattered thunderstorms. A severe thunderstorm watch is not expected. DISCUSSION...To the southeast of a shortwave trough across the Upper Great Lakes/MS Valley, a belt of strong mid-level westerlies persists across most of the Lower to Central OH Valley. Despite this favorable upper flow ....... more