FXUS64 KTSA 062320
AFDTSA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
520 PM CST SUN DEC 6 2009
.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KMLC/KXNA/KFYV/KFSM.
COLD FRONT WILL MOVE ACROSS THE AREA TONIGHT WITH
DRIZZLE AND FOG OCCURRING AHEAD OF THE FRONT. MVFR
AND IFR CONDITIONS WILL BE COMMON AHEAD OF THE FRONT
WITH CONDITIONS GRADUALLY IMPROVING IN THE WAKE OF THE
FRONT ON MONDAY.
&&
.PREV DISCUSSION... /ISSUED 323 PM CST SUN DEC 6 2009/
DISCUSSION...
BETTER THAN EXPECTED MODEL AGREEMENT FOR TONIGHT THROUGH WEDNESDAY
TIME FRAME BEFORE SOME DIVERGING AFTER THAT. COLD FRONT ENTERING
NORTHWEST OKLAHOMA WILL MOVE TO THE ABOUT THE INTERSTATE 44 CORRIDOR
BY MIDNIGHT. LIGHT DRIZZLE WILL QUICKLY SHUT DOWN ONCE THE COLDER AND
DRIER AIR ARRIVES. WITH TEMPERATURES IN THE UPPER 30S...DO NOT EXPECT
THE TEMPERATURES TO GET BELOW FREEZING UNTIL AFTER THE FRONT ARRIVES SO
SHOULD NOT SEE ICING PROBLEMS OF ANY CONSEQUENCE. THE POSSIBLE
EXCEPTION WOULD BE A LITTLE ICE ON ABOVE GROUND OBJECTS IN NORTHWEST
ARKANSAS ABOUT THE TIME THE FRONT ARRIVES AFTER MIDNIGHT. THERE
COULD BE A BRIEF PERIOD OF ICING BUT THE PRECIPITATION WILL BE
EXTREMELY LIGHT BY THAT TIME AND SHUT OFF SHORTLY AFTER TEMPERATURES
DROP BELOW FREEZING.
AFTER THIS SYSTEM TONIGHT ANOTHER LOW MOVES ALONG THE KANSAS/OKLAHOMA
BORDER TUESDAY WITH AREAS OF LIGHT RAIN AHEAD OF THE TRAILING
COLD FRONT. TEMPERATURES ABOVE THE FREEZING MARK UNTIL AFTER THE
LOW PULLS NORTHEAST AWAY FROM THE REGION TUESDAY NIGHT WHERE SOME
RAIN/SNOW MIX AND THEN AS THE MOISTURE PULLS AWAY A LITTLE LIGHT
SNOW. PRECIPITATION WILL BE VERY MINOR WITH ANY ACCUMULATIONS LESS
THAN AN INCH AND THEN ONLY ON ABOVE GROUND OBJECTS.
SYSTEM ON FRIDAY ALSO LOOKS MOISTURE STARVED AND WEAK. BUT IT DOES
HAVE SOME POTENTIAL FOR A LITTLE SNOW ACROSS NORTHERN MOST AREAS
FRIDAY NIGHT. ACCUMULATIONS LOOK VERY LIGHT AS WELL BUT COULD BE
A LITTLE MORE SIGNIFICANT THAN WHAT IS EXPECTED AT THIS POINT.
&&
.TSA WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
AR...NONE.
&&
$$
AVIATION...10
