Area Forecast Discussion
Issued by NWS Tulsa, OK

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000
FXUS64 KTSA 191058
AFDTSA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
458 AM CST FRI DEC 19 2014

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.

WIDESPREAD IFR/MVFR CONDITIONS TO PERSIST THROUGH THE
PERIOD...WITH SOME MINOR IMPROVEMENT LIKELY BY EARLY AFTERNOON.
VISIBILITIES AND CIGS SHOULD DIMINISH AGAIN AFTER MIDNIGHT
TONIGHT AT THE FAR NW AR TERMINALS...WITH XNA LIKELY TO BE MOST
AFFECTED.

&&

.PREV DISCUSSION... /ISSUED 251 AM CST FRI DEC 19 2014/

DISCUSSION...
IN THE NEAR TERM...AREAS OF FOG WILL REMAIN POSSIBLE ACROSS PARTS
OF NE OK/NW AR INTO THE EARLY MORNING HOURS. NOT ANTICIPATING A
DENSE FOG ADVISORY AT THIS TIME BUT WILL CONTINUE TO MONITOR.

PRECIPITATION HAS BEEN EXPANDING IN COVERAGE ACROSS CNTRL AND ERN
TX...IN ADVANCE OF A VIGOROUS UPPER WAVE PUSHING INTO THE TX
PANHANDLE. HEAVIEST RAINFALL WILL STAY WELL SOUTH OF THE AREA
TODAY...ALTHOUGH AREAS OF LIGHT RAIN WILL REMAIN
POSSIBLE...GENERALLY SOUTH IF I-40. OTHERWISE...EXPECT ANOTHER
CLOUDY AND COOL DAY...WITH HIGHS IN THE 40S.

ANOTHER FAST MOVING UPPER WAVE WILL SWING THROUGH OVER THE
WEEKEND...ALTHOUGH LINGERING SFC RIDGE WILL AID IN LIMITING MOISTURE
ACROSS THE REGION. UPPER FLOW WILL TEMPORARILY AMPLIFY BY EARLY NEXT
WEEK...WITH A RATHER DEEP (BUT TRANSIENT) TROF DEVELOPING OVER THE
PLAINS. ENOUGH MOISTURE MAY BE AVAILABLE WITH THIS SYSTEM TO SUPPORT
SOME LOW POPS MONDAY INTO MONDAY NIGHT AS A COLD FRONT PUSHES SOUTH.

SHORT WAVE RIDGING IN WAKE OF EXITING UPPER TROF...ALONG WITH
INCREASING SOUTHERLY FLOW SHOULD MAKE FOR A RATHER MILD CHRISTMAS
DAY...WITH HIGHS GENERALLY INTO THE 50S AREAWIDE. TIMING DIFFERENCES
ARISE WITH THE NEXT SURGE OF COLDER AIR CHRISTMAS NIGHT INTO NEXT
FRIDAY...WITH THE ECMWF A BIT SLOWER THAN THE GFS.

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...DENSE FOG ADVISORY UNTIL 10 AM FRIDAY FOR OKZ058-OKZ063.

AR...DENSE FOG ADVISORY UNTIL 10 AM FRIDAY FOR ARZ001-ARZ002.

&&

$$

SHORT TERM...22
LONG TERM....18
AVIATION...22





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