570  
FXUS64 KOUN 291708  
AFDOUN  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE NORMAN OK  
1208 PM CDT THU JUL 29 2021  
   
..NEW AVIATION
 
 
   
SHORT TERM
 
 
(TODAY AND TONIGHT)  
ISSUED AT 344 AM CDT THU JUL 29 2021  
 
WATER VAPOR IMAGERY EARLY THIS MORNING SHOWS THE UPPER RIDGE  
DOMINATING THE CENTRAL US. THINK ANY DIURNAL SHOWERS/STORMS SHOULD  
REMAIN SOUTH OF THE RED RIVER THIS AFTERNOON AS DRY MID TO UPPER  
LEVEL AIR SPREADS WESTWARD OVER OK AND MOST OF NORTH TX. EXPECT  
ANOTHER HOT AND MUGGY DAY UNDER THE RIDGE, WITH HEAT INDEX VALUES  
EXCEEDING 105 ALONG AND EAST OF I-35 (HEAT ADVISORY). SOME LOCATIONS  
ACROSS SE OK WILL FEEL LIKE ~110. OVERNIGHT LOWS FRI AM WILL BE VERY  
SIMILAR TO THIS MORNING.  
 

 
   
LONG TERM
 
 
(FRIDAY THROUGH WEDNESDAY)  
ISSUED AT 344 AM CDT THU JUL 29 2021  
 
THE HEAT WILL CONTINUE TO AMPLIFY FRI INTO SATURDAY ACROSS THE  
ENTIRE REGION. THE WARMEST CONDITIONS ARE STILL EXPECTED SATURDAY  
AFTERNOON AHEAD OF AN APPROACHING COLD FRONT WITHIN SOUTHWESTERLY  
DOWNSLOPE. SEVERAL LOCATIONS ACROSS CENTRAL OK SHOULD HIT TRIPLE  
DIGITS. EVEN WITH SLIGHTLY LOWER DEWPOINTS ANTICIPATED TOMORROW, WE  
HAVE ISSUED ANOTHER HEAT ADVISORY FOR OUR EASTERN ZONES FRIDAY, AND  
AN EVEN LARGER AREA INCLUDING MOST OF OK WILL LIKELY BE NEEDED BY  
SATURDAY.  
 
THERE'S PRETTY DECENT AGREEMENT REGARDING COLD FROPA DURING THE DAY  
SUNDAY, WITH SOME ASSOCIATED PRECIP. IT APPEARS THE HIGHEST POPS  
WILL DEVELOP OVER THE SOUTHERN HALF OF THE FA LATE SUNDAY INTO EARLY  
MONDAY ALONG THE FRONT WHERE DEEPEST MOISTURE SATURATION WILL OCCUR.  
TEMPS WILL DROP BELOW AVERAGE BEHIND THE FRONT SUNDAY THRU ALL OF  
NEXT WEEK AS WE REMAIN WITHIN NORTHERLY FLOW ALOFT. AT LEAST LOW  
RAIN CHANCES WILL CONTINUE THRU WED.  
 

 
   
AVIATION
 
 
(18Z TAFS)  
ISSUED AT 1201 PM CDT THU JUL 29 2021  
 
LIGHT SOUTH WINDS MAY BECOME VARIABLE AT TIMES AS HIGH PRESSURE  
REMAINS OVER THE AREA THROUGH THE PERIOD. THE LATEST HRRR MODEL  
GUIDANCE SUGGESTS ISOLATED THUNDERSTORMS ACROSS WESTERN NORTH  
TEXAS THIS AFTERNOON, AND SIMILAR TO WHAT HAPPENED YESTERDAY.  
SINCE LOCATION IS UNCERTAIN, LEFT OUT OF KSPS TAF FOR NOW.  
 
THOMPSON  
 

 
   
UPPER AIR
 
 
ISSUED AT 344 AM CDT THU JUL 29 2021  
 
AN UPPER AIR FLIGHT IS NOT PLANNED FOR TODAY.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
OKLAHOMA CITY OK 96 74 97 75 / 0 0 0 0  
HOBART OK 97 74 97 75 / 10 0 0 0  
WICHITA FALLS TX 98 75 98 76 / 10 0 0 0  
GAGE OK 97 72 97 73 / 0 0 0 0  
PONCA CITY OK 97 73 98 75 / 0 0 0 0  
DURANT OK 98 76 99 76 / 10 0 10 0  
 

 
   
OUN WATCHES/WARNINGS/ADVISORIES
 
 
OK...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR OKZ007-008-012-013-  
018>020-024>032-039>043-045>048-050>052.  
 
HEAT ADVISORY FROM NOON TO 7 PM CDT FRIDAY FOR OKZ020-026-  
030>032-042-043-047-048-051-052.  
 
TX...NONE.  

 
 

 
 
SHORT TERM...03  
LONG TERM....03  
AVIATION...01  
 
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