116  
FXUS64 KTSA 221128  
AFDTSA  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE TULSA OK  
628 AM CDT FRI SEP 22 2023  
   
..NEW AVIATION  
 
   
SHORT TERM  
 
(TODAY)  
ISSUED AT 331 AM CDT FRI SEP 22 2023  
 
ELEVATED SHOWERS/THUNDERSTORMS HAVE DEVELOPED EARLY THIS MORNING  
ACROSS EASTERN OKLAHOMA IN ZONE OF STRONGER WARM ADVECTION  
/ENHANCED ISENTROPIC LIFT. A FEW OF THE STRONGER STORMS COULD  
PRODUCE MARGINALLY SEVERE HAIL ACROSS NORTHEAST OKLAHOMA GIVEN THE  
STEEPER MID LEVEL LAPSE RATES/COLDER TEMPERATURES ALOFT. IN ADDITION,  
A NARROW BAND OF LOCALLY HEAVIER RAINFALL WILL BE POSSIBLE AS  
STORMS CONTINUE TO DEVELOP/TRAIN OVER THE SAME AREAS THIS MORNING  
BEFORE ACTIVITY SLOWLY WEAKENS THIS AFTERNOON WITH DECREASING  
CLOUD COVER. OTHERWISE, GUSTY SOUTH WINDS EXPECTED THIS AFTERNOON  
ACROSS PORTIONS OF NORTHEAST OKLAHOMA, MAINLY NORTH OF I-44.  
 
 
   
LONG TERM  
 
(TONIGHT THROUGH THURSDAY)  
 
ISSUED AT 331 AM CDT FRI SEP 22 2023  
 
A FEW ISOLATED THUNDERSTORMS WILL BE POSSIBLE ACROSS NORTHWEST  
ARKANSAS LATE TONIGHT INTO SATURDAY MORNING, HOWEVER MAIN CONCERN  
WILL BE THE SEVERE WEATHER POTENTIAL LATE SATURDAY AFTERNOON/EVENING.  
LOW LEVEL MOISTURE WILL CONTINUE TO SURGE NORTH DURING THE DAY  
AND WITH STRONG SURFACE HEATING, MLCAPES ARE EXPECTED TO CLIMB  
INTO THE 2000-2500 J/KG BY MID TO LATE AFTERNOON. AS COMPACT UPPER  
LOW MOVES OUT OF THE ROCKIES INTO THE NORTHERN PLAINS, A STRONG  
MID/UPPER LEVEL SPEED MAX WILL SHIFT EAST INTO THE CENTRAL PLAINS  
WITH COLD FRONT MOVING INTO NORTHEAST OKLAHOMA BY LATE AFTERNOON/EARLY  
EVENING.  
 
STRONG TO SEVERE THUNDERSTORMS WILL LIKELY DEVELOP ALONG THE COLD  
FRONT ACROSS NORTHEAST OKLAHOMA WITH CONVECTION SWEEPING INTO SOUTHEAST  
OKLAHOMA/NORTHWEST ARKANSAS OVERNIGHT. ALL MODES OF SEVERE WEATHER  
WILL BE POSSIBLE INITIALLY WITH ANY DISCRETE STORMS THAT DEVELOP  
ACROSS NORTHEAST OKLAHOMA LATE SATURDAY AFTERNOON/EVENING, INCLUDING  
AT LEAST A LIMITED TORNADO THREAT. HEAVY RAINFALL WILL ALSO BE LIKELY  
WITH A LOCALIZED FLOODING THREAT, ESPECIALLY IN AREAS THAT HAVE  
ALREADY SEEN HIGHER RAINFALL TOTALS OVER THE PAST COUPLE OF DAYS.  
 
THUNDERSTORM CHANCES WILL CONTINUE ON SUNDAY AS FRONTAL BOUNDARY PUSHES  
INTO SOUTHEAST OKLAHOMA/WEST-CENTRAL ARKANSAS. A FEW OF THESE STORMS  
COULD ALSO BE SEVERE WITH A CONTINUED HEAVY RAINFALL THREAT AS LOW  
LEVEL MOISTURE POOLS AHEAD OF FRONT.  
 
A GENERALLY DRY FORECAST IS EXPECTED INTO THE EARLY TO MIDDLE PART  
OF NEXT WEEK WITH TEMPERATURES NEAR NORMAL. A SLOW WARMING TREND  
IS FORECAST BY FRIDAY AS UPPER RIDGE BUILDS BACK OVER THE SOUTHERN  
PLAINS WITH BLOCKING PATTERN DEVELOPING OVER THE CONUS INTO NEXT  
WEEKEND.  
 
 
   
AVIATION  
 
(12Z TAFS)  
ISSUED AT 623 AM CDT FRI SEP 22 2023  
 
AN AREA OF SHOWERS AND EMBEDDED THUNDERSTORMS EXTENDING ACROSS  
EASTERN OK AT PRESENT, WILL TEND TO SHIFT A LITTLE EAST WITH TIME  
THROUGH THE MORNING. CONDITIONS WITHIN THIS AREA WILL OCCASIONALLY  
DROP INTO THE MVFR AND EVEN IFR CATEGORIES AS STRONGER CELLS  
PASS. AN OVERALL DECREASING TREND IN INTENSITY AND COVERAGE IS  
EXPECTED BY AFTERNOON. ASIDE FROM THAT VFR CONDITIONS WILL  
PREVAIL WITH DECREASING CLOUDS THIS AFTERNOON AND EVENING, AND  
SOME SFC WIND GUSTS AROUND 20 KNOTS ACROSS EASTERN OK.  
 
 
   
PRELIMINARY POINT TEMPS/POPS  
 
TUL 82 70 87 69 / 80 10 40 80  
FSM 85 69 90 70 / 70 20 30 90  
MLC 84 70 90 70 / 80 10 40 80  
BVO 82 66 87 65 / 70 10 40 80  
FYV 81 65 86 65 / 70 20 30 90  
BYV 81 65 84 64 / 50 20 30 90  
MKO 79 67 87 67 / 80 10 40 90  
MIO 80 67 86 65 / 70 20 40 90  
F10 80 67 88 67 / 80 10 40 80  
HHW 83 69 92 70 / 80 10 30 60  
 
 
   
TSA WATCHES/WARNINGS/ADVISORIES  
 
OK...NONE.  
AR...NONE.  
 
 
 
 
SHORT TERM...12  
LONG TERM....12  
AVIATION...14  
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