Area forecast discussion, National Weather Service, Tulsa coverage area

NATIONAL WEATHER SERVICE TULSA OK
FRI MAR 22 2013

.DISCUSSION…
COOL AFTERNOON AS OVERCAST SKIES CONTINUE ACROSS MOST OF THE AREA.
LOW CLOUDS WILL LIKELY REMAIN OVERNIGHT WITH A SLIGHT CHANCE FOR
RAIN SHOWERS AFTER MIDNIGHT. AS STRONG UPPER WAVE MOVES INTO THE
CENTRAL/SOUTHERN ROCKIES…SHOWERS WILL BEGIN TO INCREASE IN
COVERAGE DURING THE DAY SATURDAY ALONG WEAK INVERTED SURFACE
TROUGH. A FEW ISOLATED THUNDERSTORMS WILL BE POSSIBLE ACROSS
SOUTHEAST OKLAHOMA…HOWEVER MOST AREAS WILL REMAIN CAPPED WITH
LIMITED ELEVATED INSTABILITY AVAILABLE.

MAIN UPPER VORT MAX/TROUGH WILL SWING INTO THE AREA SATURDAY NIGHT
WITH THE POTENTIAL FOR PRECIPITATION TO TRANSITION TO SNOW ACROSS
FAR NORTHEAST OKLAHOMA AS COLDER AIR PUSHES INTO THE REGION BEHIND
FRONT. STILL APPEARS THAT BETTER DYNAMICS/LIFT WILL OCCUR NORTH OF
THE AREA…LIMITING SNOWFALL POTENTIAL. COULD SEE AROUND AN INCH
OR TWO OF SNOW ACCUMULATION ALONG THE OK/KS STATE LINE…ESPECIALLY
IF SYSTEM TRACKS SLIGHTLY FARTHER SOUTH AS DEPICTED BY THE ECMWF.
LINGERING SNOW SHOWERS WILL REMAIN POSSIBLE ACROSS FAR NORTHEAST
OKLAHOMA/NORTHWEST ARKANSAS INTO SUNDAY MORNING…BEFORE
PRECIPITATION SHIFTS EAST WITH DEPARTING SYSTEM.

UNSEASONABLY COLD WEATHER EXPECTED BEHIND FRONT SUNDAY INTO MONDAY
AS GUSTY NORTHWEST WINDS CONTINUE. TEMPERATURES WILL REMAIN BELOW
NORMAL THROUGH TUESDAY BEFORE WARMING TREND DEVELOPS BY MID WEEK
AS SURFACE HIGH SHIFTS EAST. PRECIPITATION CHANCES RETURN BY
FRIDAY AS LOW LEVEL MOISTURE BEGINS TO INCREASE WITH THE POTENTIAL
FOR SEVERAL WEAK DISTURBANCES TO TRAVERSE AREA IN STRONG ZONAL
FLOW ALOFT.

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