454
ACUS11 KWNS 271022
SWOMCD
SPC MCD 271021
TXZ000-271145-
MESOSCALE DISCUSSION 0874
NWS STORM PREDICTION CENTER NORMAN OK
0521 AM CDT WED MAY 27 2026
AREAS AFFECTED...PARTS OF SOUTH TEXAS
CONCERNING...SEVERE THUNDERSTORM WATCH 245...
VALID 271021Z - 271145Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 245
CONTINUES.
SUMMARY...A CLUSTER OF THUNDERSTORMS WILL CONTINUE TO POSE A RISK OF
STRONG-SEVERE WIND GUSTS AS IT CONTINUES EASTWARD TO THE LOWER TX
COAST.
DISCUSSION...A FORWARD-PROPAGATING THUNDERSTORM CLUSTER IS TRACKING
EASTWARD AT AROUND 35-40 KT ACROSS SOUTH TX TOWARD THE LOWER TX
COAST. THIS ACTIVITY IS ADVANCING ALONG A ZONE OF LOW-LEVEL
CONFLUENCE FOCUSED NEAR AN EAST/WEST-ORIENTED OUTFLOW BOUNDARY.
GIVEN THE WELL-ESTABLISHED COLD POOL, MOIST PRE-CONVECTIVE AIR MASS,
AND AROUND 40 KT OF GUST-FRONT-ORTHOGONAL EFFECTIVE SHEAR, THIS
ACTIVITY WILL CONTINUE TO POSE A RISK OF STRONG-SEVERE GUSTS AS IT
APPROACHES THE COAST OVER THE NEXT HOUR OR TWO.
..WEINMAN.. 05/27/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...CRP...BRO...
LAT...LON 27249858 27459847 27729840 28029847 28189831 28149754
27999721 27689718 27289731 27099763 27109832 27249858
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
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