506  
FXUS64 KTSA 251321  
AFDTSA  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE TULSA OK  
821 AM CDT SUN JUN 25 2017  
   
DISCUSSION
 
 
NORTHWEST FLOW ALOFT PREVAILS OVER THE REGION TODAY, ON THE  
SOUTHWESTERN FRINGE OF A BROAD UPPER TROUGH CENTERED OVER THE  
GREAT LAKES. MID-LEVEL ISENTROPIC LIFT TO OUR WEST IS BRINGING  
CLOUDS AND SOME SHOWERS AND STORMS TO THE HIGH PLAINS. A LOT OF  
THE MID CLOUDINESS OVER OUR AREA HAS DISSIPATED SINCE SUNRISE,  
LIKELY DUE TO INCREASING ISENTROPIC DESCENT ON THE LOWER PLAINS.  
WITH MORE INSOLATION EXPECTED, HIGHS SHOULD CLIMB TO THE WARMER  
NUMBERS THE GUIDANCE HAS SUGGESTED. THE BEST ISENTROPIC LIFT  
SHOULD STAY TO OUR WEST AND NORTH THRU THE DAY TODAY, THUS NO  
PRECIP IS EXPECTED.  
 
LACY  
 

 
   
PREV DISCUSSION
 
/ISSUED 604 AM CDT SUN JUN 25 2017/  
 
AVIATION...  
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.  
VFR CONDITIONS WILL PREVAIL THROUGH THE ENTIRE TAF PERIOD  
AT ALL SITES.  
 
PREV DISCUSSION... /ISSUED 341 AM CDT SUN JUN 25 2017/  
 
DISCUSSION...  
AN ATYPICALLY DRY LOW LEVEL AIRMASS FOR LATE JUNE WILL REMAIN IN  
PLACE FOR THE NEXT COUPLE DAYS BEFORE THE INEVITABLE RETURN OF  
MORE TYPICAL HUMID AIR BY THE MIDDLE TO LATTER PART OF THE  
UPCOMING WEEK. A FEW SHOWERS AND THUNDERSTORMS MAY BRUSH PARTS OF  
FAR NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS MONDAY NIGHT AS THE  
TAIL END OF A SHORTWAVE PASSING TO THE NORTHEAST CLIPS THIS AREA,  
AND A WEAK SURFACE BOUNDARY WILL BE HANGING AROUND AS WELL. THE  
BETTER RAIN CHANCES WILL COME LATE THURSDAY NIGHT THROUGH SATURDAY  
AS A FRONTAL BOUNDARY DROPS SOUTH INTO THE AREA BEFORE STALLING  
AND WASHING OUT BY THE LATTER PART OF NEXT WEEKEND.  
 
BEGINNING ABOUT NEXT SUNDAY, THE SUMMERTIME RIDGE LOOKS TO REALLY  
TAKE HOLD, AND THE TRUE SUMMER HEAT AND HUMIDITY WILL BE HERE TO  
STAY FOR A COUPLE MONTHS MOST LIKELY, SO ENJOY THESE NEXT FEW DAYS  
OF RELATIVELY PLEASANT WEATHER AS IT WILL NOT LAST.  
 
STAYED CLOSE TO GUIDANCE TEMPERATURES THE NEXT COUPLE DAYS.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
TUL 88 63 87 66 / 10 10 10 10  
FSM 89 64 88 65 / 10 10 10 10  
MLC 88 63 87 65 / 10 10 10 10  
BVO 87 59 86 61 / 10 10 10 20  
FYV 84 57 82 59 / 10 10 10 20  
BYV 84 59 80 59 / 10 10 10 20  
MKO 88 62 86 64 / 10 10 10 10  
MIO 85 60 82 61 / 10 10 10 20  
F10 88 63 86 65 / 10 10 10 10  
HHW 88 64 88 67 / 10 10 10 0  
 

 
   
TSA WATCHES/WARNINGS/ADVISORIES
 
 
OK...NONE.  
AR...NONE.  

 
 

 
 
SHORT TERM...30  
 
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