543  
FXUS64 KOUN 190413 AAA  
AFDOUN  
 
AREA FORECAST DISCUSSION...UPDATED  
NATIONAL WEATHER SERVICE NORMAN OK  
1113 PM CDT WED OCT 18 2017  
   
AVIATION...19/06 TAF ISSUANCE
 
 
VFR CONDITIONS ARE EXPECTED TO PREVAIL THROUGH THE PERIOD.  
SOUTHERLY WINDS WILL PERSIST, BREEZY AT TIMES, WITH SCATTERED TO  
BROKEN HIGH CLOUDS THROUGH MUCH OF THE PERIOD.  
 
KURTZ  
 

 
   
PREV DISCUSSION
 
/ISSUED 647 PM CDT WED OCT 18 2017/  
 
AVIATION...18/00Z TAF ISSUANCE...  
VFR CONDITIONS ARE EXPECTED TO PREVAIL THROUGH THE PERIOD.  
SOUTHERLY WINDS WILL PERSIST, WITH SOME SUSTAINED WINDS AROUND 10  
TO 15 KTS AT TIMES THROUGH THURSDAY MORNING. FEW TO SCATTERED  
CIRRUS CLOUDS WILL REMAIN THROUGH MUCH OF THE OVERNIGHT, WITH  
INCREASING SCATTERED TO BROKEN CEILINGS THROUGH PORTIONS OF  
TOMORROW.  
 
KURTZ  
 
PREV DISCUSSION... /ISSUED 316 PM CDT WED OCT 18 2017/  
 
DISCUSSION...  
THE MAIN FOCUS OF THIS FORECAST IS ON SATURDAY, WHEN AN UPPER-  
LEVEL WAVE AND SURFACE COLD FRONT WILL BRING WIDESPREAD RAIN AND  
THUNDERSTORMS TO THE REGION.  
 
AFTER ANOTHER MILD AND BREEZY DAY TOMORROW, RAIN CHANCES WILL  
REENTER THE FORECAST TOMORROW NIGHT, AS MOISTURE BEGINS TO  
INCREASE AND THE LOW-LEVEL JET GENERATES WEAK ISENTROPIC LIFT OVER  
WESTERN OKLAHOMA AND ADJACENT PARTS OF TEXAS. THE CONTINUING  
INFLUX OF MOISTURE WILL GENERALLY MAINTAIN LOW RAIN/ELEVATED  
THUNDERSTORM CHANCES THROUGH SATURDAY AFTERNOON.  
 
AS A COLD FRONT ENTERS NORTHWEST OKLAHOMA SATURDAY AFTERNOON,  
THUNDERSTORMS ARE EXPECTED TO ERUPT ALONG THE FRONT. INSTABILITY  
AND VERTICAL WIND SHEAR WILL SUPPORT SEVERE STORMS. THE FRONT IS  
THEN EXPECTED TO CONTINUE ITS ADVANCE TO THE SOUTHEAST, EXITING  
OUR FORECAST AREA DURING THE EARLY MORNING HOURS OF SUNDAY. THE  
SEVERE WEATHER RISKS WILL INITIALLY BE HAIL AND DAMAGING WINDS,  
BUT CONVERT QUICKLY TO MAINLY WIND LATE SATURDAY EVENING.  
 
DRY WEATHER WILL FOLLOW FOR SUNDAY THROUGH THE REMAINDER OF THE  
FORECAST PERIOD AS NORTHWEST FLOW ALOFT BECOMES WELL ESTABLISHED.  
A SECOND COLD FRONT IS FORECAST TO SWEEP SOUTHEAST ACROSS  
OKLAHOMA/NORTH TEXAS ON MONDAY NIGHT OR EARLY TUESDAY, BUT IT WILL  
HAVE MINIMAL AMOUNTS OF MOISTURE TO WORK WITH, AND NO  
PRECIPITATION IS CURRENTLY EXPECTED WITH THAT FRONT. POST-FRONTAL  
TEMPERATURES WILL BE FAIRLY CLOSE TO THE SEASONAL AVERAGE.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
OKLAHOMA CITY OK 80 52 78 58 / 0 0 0 0  
HOBART OK 81 53 78 61 / 0 0 0 10  
WICHITA FALLS TX 82 53 80 62 / 0 0 0 20  
GAGE OK 84 51 78 59 / 0 0 0 0  
PONCA CITY OK 80 51 79 57 / 0 0 0 0  
DURANT OK 79 51 82 58 / 0 0 0 10  
 

 
   
OUN WATCHES/WARNINGS/ADVISORIES
 
 
OK...NONE.  
TX...NONE.  

 
 

 
 
14/04  
 
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