Southern Indiana Weather Spotter's Reference
Current Mesoscale Discussions for the USA
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MESOSCALE DISCUSSION 0890 NWS Storm Prediction Center Norman OK 0604 PM CDT Mon May 23 2022 AREAS AFFECTED...South Texas CONCERNING...Severe potential...Watch possible VALID 232304Z - 240030Z PROBABILITY OF WATCH ISSUANCE...40 percent SUMMARY...Severe thunderstorm watch is possible over south-central Texas this evening with isolated large hail and wind. DISCUSSION...Remnants of a weak MCV are approaching SAT early this evening. Strong convection is primarily located just southeast of this feature, extending southwest to near the international border west of Cotulla. This activity appears to be forming ahead of a very weak short-wave trough that is approaching ....... more

MESOSCALE DISCUSSION 0889 NWS Storm Prediction Center Norman OK 0602 PM CDT Mon May 23 2022 AREAS AFFECTED...Coastal South Carolina CONCERNING...Severe Thunderstorm Watch 263... VALID 232302Z - 240100Z The severe weather threat for Severe Thunderstorm Watch 263 continues. SUMMARY...Sporadic DAMAGING WINDS remain possible as a line of storms approaches the South Carolina coast, though the overall severe threat will likely continue to decrease through the evening hours. DISCUSSION...Latest GOES IR imagery and lightning data have shown an overall weakening trend in the convective line that has been traversing eastern GA and southern SC. In line with this trend ....... more

MESOSCALE DISCUSSION 0888 NWS Storm Prediction Center Norman OK 0541 PM CDT Mon May 23 2022 AREAS AFFECTED...Central/North-Central TX CONCERNING...Severe potential...Watch unlikely VALID 232241Z - 240045Z PROBABILITY OF WATCH ISSUANCE...20 percent SUMMARY...Gusty winds and marginally SEVERE HAIL are possible with thunderstorms this evening. Severe thunderstorm watch does not appear warranted. DISCUSSION...A weak mid-level short-wave trough appears to be embedded within southerly stream over west-central TX. In response to this feature, a cluster of storms has evolved into a weak MCS that is propagating northeast ahead of the short wave. Latest radar data ....... more

MESOSCALE DISCUSSION 0887 NWS Storm Prediction Center Norman OK 0500 PM CDT Mon May 23 2022 AREAS AFFECTED...Northwest South Carolina into southwest North Carolina CONCERNING...Tornado Watch 264... VALID 232200Z - 240000Z The severe weather threat for Tornado Watch 264 continues. SUMMARY...The potential for low-topped supercells will continue for at least the next couple of hours, maintaining the potential for weak TORNADOES across northwest South Carolina into far southwest North Carolina. DISCUSSION...Recent reflectivity and velocity data from KGSP and KCAE continue to show transient supercell structures across west/northwestern portions of SC along and just ....... more