801  
FXUS64 KAMA 131124  
AFDAMA  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE AMARILLO TX  
524 AM CST FRI DEC 13 2019  
   
AVIATION
 
 
12Z TAF CYCLE  
 
VFR CONDITIONS WILL PREVAIL AT ALL THREE TAF SITES THROUGH 12Z  
SATURDAY. WEST WINDS 5 TO 15 KNOTS WILL BECOME NORTHWEST TO NORTH  
10 TO 20 KNOTS AFTER 17Z TO 19Z TODAY AND THEN BECOME NORTHWEST TO  
NORTH AND NORTHEAST 5 TO 15 KNOTS AFTER 03Z TO 06Z SATURDAY.  
 
SCHNEIDER  
 

 
   
PREV DISCUSSION
 
/ISSUED 326 AM CST FRI DEC 13 2019/  
 
SHORT TERM...TODAY THROUGH TONIGHT...  
 
DRY NORTHWESTERLY FLOW ALOFT TODAY THROUGH TONIGHT WILL ALLOW FOR  
ONLY SOME SCATTERED HIGH LEVEL CLOUDS ACROSS THE PANHANDLES. A  
SURFACE TROUGH WILL TRACK ACROSS THE FORECAST AREA SHIFTING THE  
WINDS FROM THE SOUTHWEST TO THE WEST AND THEN AROUND TO THE  
NORTHWEST AND NORTH THIS MORNING THROUGH THIS AFTERNOON. SURFACE  
RIDGE BUILDS IN ACROSS THE PANHANDLES TONIGHT ALLOWING FOR LIGHT  
NORTHEAST TO EAST AND SOUTHEAST WINDS.  
 
SCHNEIDER  
 
LONG TERM...SATURDAY THROUGH THURSDAY...  
NORTHWEST FLOW ALOFT EARLY SATURDAY TRANSITIONS TO ZONAL BY  
SATURDAY EVENING. SOUTHWEST FLOW ALOFT SETS UP SUNDAY MORNING AS  
NEXT SHORTWAVE TROF DIGS ACROSS THE GREAT BASIN ON SUNDAY, AND  
CROSSES THE ROCKIES SUNDAY NIGHT. THIS POSITIVELY-TILTED TROF  
PASSES THROUGH THE TEXAS AND OKLAHOMA PANHANDLES LATE SUNDAY NIGHT  
AND MONDAY MORNING.  
 
MODELS CONTINUE TO TREND DRIER WITH THIS SYSTEM AND THE POTENTIAL  
FOR ACCUMULATING SNOW IS ALSO GOING DOWN. HAVE DELAYED ONSET OF  
PRECIPITATION UNTIL SUNDAY MORNING, WHEN LIGHT SNOW MAY FALL OVER  
MAINLY THE OKLAHOMA PANHANDLE. CHANCES IMPROVE SLIGHTLY SUNDAY  
NIGHT AS STRONGER DYNAMICS WITH SHORTWAVE TROF ARRIVE AND  
ISENTROPIC LIFT BECOMES STRONGER. HAVE LOWERED EXPECTED SNOW  
TOTALS, WITH LESS THAN ONE INCH NOW FORECAST. MONDAY AND BEYOND  
ARE EXPECTED TO BE DRY.  
 
REGARDING TEMPERATURES, SATURDAY WILL BE COOLER AS WEAK BACKDOOR  
COLD FRONT MOVES IN FROM THE NORTHEAST. HIGH TEMPERATURES IN  
NORTH AND NORTHEAST SECTIONS EXPECTED REMAIN BELOW 50 ON SATURDAY,  
WHILE 60 IS FORECAST IN THE SOUTHWEST. STRONGER PUSH OF COLD AIR  
ARRIVES ON SUNDAY AND SUNDAY EVENING, ALTHOUGH SOUTH AND SOUTHWEST  
SECTIONS MAY HAVE TIME TO REACH 50, WHILE NORTHERN SECTIONS REMAIN  
BELOW 40. COLD CONDITIONS ARE EXPECTED MONDAY AND TUESDAY, WITH  
HIGHS MAINLY IN THE MID-30S TO LOWER-40S, ABOUT 10 DEGREES BELOW  
NORMAL. MODEST WARMING TREND BEGINS WEDNESDAY, WHEN HIGHS NEAR  
NORMAL ARE EXPECTED.  
 
COCKRELL  
 

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

 
 

 
 
11/3  
 
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