064  
ACUS11 KWNS 150136  
SWOMCD  
SPC MCD 150135  
OKZ000-TXZ000-150230-  
 
MESOSCALE DISCUSSION 2377  
NWS STORM PREDICTION CENTER NORMAN OK  
0835 PM CDT WED OCT 14 2026  
 
AREAS AFFECTED...PORTIONS OF THE RED RIVER VALLEY IN SOUTHWESTERN  
OKLAHOMA/NORTHWESTERN TEXAS  
 
CONCERNING...SEVERE THUNDERSTORM WATCH 685...  
 
VALID 150135Z - 150230Z  
 
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 685  
CONTINUES.  
 
SUMMARY...A LOCALLY GREATER RISK FOR DAMAGING/SEVERE WIND GUSTS AND  
PERHAPS A BRIEF TORNADO MAY EXIST OVER THE NEXT 1-2 HOURS ALONG  
PORTIONS OF THE RED RIVER VALLEY.  
 
DISCUSSION...REGIONAL RADAR IMAGERY DEPICTS A WELL-DEFINED QLCS WITH  
A PROMINENT BOWING SEGMENT AND EMBEDDED MESOVORTEX (AS SAMPLED BY  
THE KFDR RADAR) ADVANCING NORTHEASTWARD ALONG THE RED RIVER VALLEY  
ACROSS PORTIONS OF SOUTHWESTERN OKLAHOMA/NORTHWESTERN TEXAS. THIS  
BOW IS PROPAGATING EASTWARD WITHIN A MORE STABLE LOW-LEVEL AIR MASS  
LOCATED TO THE NORTH OF A REMNANT OUTFLOW BOUNDARY. LATEST  
OBSERVATIONS CONTINUE TO DEPICT BACKED SURFACE FLOW WITHIN THIS AIR  
MASS, HOWEVER, WITH RECENT OBJECTIVE ANALYSIS ALSO INDICATED THE  
PRESENCE OF CLOCKWISE CURVED LOW-LEVEL HODOGRAPHS AND 200-300 M2/S2  
ESRH. THIS IS LIKELY TO CONTINUE TO SUPPORT AT LEAST SOME RISK FOR  
DAMAGING/SEVERE WIND GUSTS AND PERHAPS A BRIEF QLCS TORNADO ALONG  
PORTIONS OF THE RED RIVER VALLEY IN THE NEAR-TERM, WITH THE GREATEST  
RISK LIKELY TO EXIST POLEWARD OF THE BOW'S APEX.  
 
..CHALMERS.. 10/15/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...FWD...OUN...  
 
LAT...LON 34699870 34819833 34839792 34699756 34469741 34189746  
33979764 33829793 33709829 33709872 33739887 33879891  
34079891 34269903 34369919 34579888 34699870  
 
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH  
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
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