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
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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
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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
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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
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