077  
ACUS11 KWNS 051346  
SWOMCD  
SPC MCD 051346  
TXZ000-051545-  
 
MESOSCALE DISCUSSION 0689  
NWS STORM PREDICTION CENTER NORMAN OK  
0846 AM CDT MON MAY 05 2025  
 
AREAS AFFECTED...PARTS OF SOUTH-CENTRAL TO SOUTHEAST TX  
 
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY  
 
VALID 051346Z - 051545Z  
 
PROBABILITY OF WATCH ISSUANCE...20 PERCENT  
 
SUMMARY...ISOLATED LARGE HAIL WILL BE POSSIBLE THIS MORNING WITH  
ELEVATED STORMS MOVING NORTHEAST FROM THE SAN ANTONIO VICINITY.  
OVERALL COVERAGE/INTENSITY WILL PROBABLY REMAIN INSUFFICIENT FOR  
WATCH ISSUANCE.  
 
DISCUSSION...A FEW THUNDERSTORMS HAVE DEVELOPED ALONG A  
NORTHWEST/SOUTHEAST-ORIENTED CORRIDOR TO THE SOUTH-SOUTHEAST OF SAN  
ANTONIO. THIS ACTIVITY INITIALLY PULSED UP AND THEN WEAKENED, BUT  
COULD OSCILLATE BACK UPWARD THIS MORNING. GUIDANCE CONSENSUS  
INDICATES THIS ACTIVITY HAS FORMED ALONG THE LEADING EDGE OF  
STRENGTHENING 700-MB SOUTHWESTERLIES, WHICH WILL MOVE NORTHEASTWARD  
THROUGH MIDDAY. 12Z DEL RIO AND CORPUS CHRISTI SOUNDINGS SAMPLED  
RICH LOW-LEVEL MOISTURE WITH STEEPENED LAPSE RATES ABOVE 650 MB.  
WITH SOME VEERING BUT MAINLY INCREASING SPEED SHEAR WITH HEIGHT,  
TRANSIENT MID-LEVEL ROTATION WILL REMAIN POSSIBLE. OVERALL SCENARIO  
COULD SUPPORT SPORADIC SEVERE HAIL CORES INTO MIDDAY, BUT COVERAGE  
SHOULD REMAIN ISOLATED.  
 
..GRAMS/GLEASON.. 05/05/2025  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...HGX...FWD...CRP...EWX...  
 
LAT...LON 29059845 29599874 30159848 30669739 30769676 30639621  
30319576 29809556 29279555 28969618 28629707 28679774  
29059845  
 
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH  
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN  
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