000
FXUS64 KTSA 011133
AFDTSA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
533 AM CST SUN MAR 1 2015

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
IFR TO OCCASIONAL LIFR CONDITIONS FOR ALL TAF SITES EARLY
THIS MORNING AS AREAS OF LIGHT FREEZING RAIN/DRIZZLE PERSISTS.
SLOW IMPROVEMENT IS EXPECTED BY THE AFTERNOON...WITH CIGS
BECOMING MVFR.

&&

.PREV DISCUSSION... /ISSUED 345 AM CST SUN MAR 1 2015/

DISCUSSION...
AREAS OF FREEZING RAIN HAVE BEEN ONGOING THIS MORNING...MAINLY
ACROSS SE OK...WC AND NW AR. AREAL COVERAGE OF FREEZING RAIN WILL
DIMINISH...WITH PATCHY FREEZING DRIZZLE BECOMING THE MAIN PRECIP
TYPE FOR THOSE AREAS THAT WILL BE BELOW FREEZING FOR MOST OF THE
MORNING HOURS. THE WSW WILL NOW BE EXTENDED THROUGH 17Z...BUT WILL
NOT INCLUDE CHOCTAW COUNTY AS OBSERVED TEMPERATURES ARE ABOVE
FREEZING. WARMING WILL CONTINUE FROM SOUTH TO NORTH TODAY...WITH
ALL AREAS EXPECTED TO SEE AFTERNOON TEMPERATURES ABOVE FREEZING.
PUSH OF COOLER AIR TO MOVE IN FROM THE NORTH TONIGHT...HOWEVER
WITH PRECIP CHANCES TO REMAIN ACROSS SE OK AND WC AR...THE WARMER
TEMPERATURES IN THOSE LOCATIONS OVERNIGHT WILL LIKELY LIMIT FREEZING
PRECIP CHANCES. WARM UP TO CONTINUE THROUGH TUESDAY...WITH
RAIN...AND THUNDER CHANCES INCREASING AS THE MAIN UPPER TROUGH AND
SURFACE FRONT APPROACH AT THAT TIME. FRONT PUSHES THROUGH THE AREA
TUESDAY NIGHT AND WILL BRING COLDER AIR TO THE REGION ONCE AGAIN.
BEHIND THE BOUNDARY...RAIN AND SNOW CHANCES WILL BE CARRIED
THROUGH WEDNESDAY NIGHT AS THE TROUGH AXIS WILL BE SLOW TO CLEAR
THE REGION. ADDITIONALLY...AN INITIAL...BUT LIMITED WINDOW FOR
FREEZING RAIN WILL EXIST IMMEDIATELY BEHIND THE FRONT TUESDAY
NIGHT ACROSS NE OK NW AR. SETTLED WEATHER IS EXPECTED ONCE THE
TROUGH MOVES EAST...AND WILL CONTINUE THROUGH THE WEEKEND.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   36  25  41  37 /  20  10  30  60
FSM   39  32  43  37 /  50  20  30  50
MLC   39  31  43  40 /  40  20  30  60
BVO   35  20  39  35 /  20  10  20  60
FYV   39  24  40  36 /  30  10  20  50
BYV   39  23  39  34 /  30  10  20  50
MKO   37  26  41  37 /  30  10  30  60
MIO   36  22  40  36 /  20  10  20  50
F10   37  27  42  37 /  30  10  30  60
HHW   42  36  44  41 /  50  40  50  60

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...WINTER WEATHER ADVISORY UNTIL 11 AM SUNDAY FOR OKZ049-OKZ054-
     OKZ055-OKZ056-OKZ057-OKZ058-OKZ059-OKZ060-OKZ061-OKZ062-
     OKZ063-OKZ064-OKZ065-OKZ066-OKZ067-OKZ068-OKZ069-OKZ070-
     OKZ071-OKZ072-OKZ073-OKZ074-OKZ075-OKZ076.

AR...WINTER WEATHER ADVISORY UNTIL 11 AM SUNDAY FOR ARZ001-ARZ002-
     ARZ010-ARZ011-ARZ019-ARZ020-ARZ029.

&&

$$

AVIATION...18