National Weather Service Text Product Display

Area Forecast Discussion
Issued by NWS Tulsa, OK

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000
FXUS64 KTSA 280506
AFDTSA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1106 PM CST FRI FEB 27 2015

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
FOR THE 6Z TAFS... VFR CONDITIONS ARE EXPECTED TO PREVAIL
OVERNIGHT AT ALL SITES. INTERMITTENT SNOW FLURRIES WILL BE
POSSIBLE AS WELL. A BRIEF PERIOD OF MVFR CONDITIONS MAY BE POSSIBLE
WITH ANY AREAS OF SNOW.

A NEW WEATHER SYSTEM WILL BRING ANOTHER ROUND OF SNOWFALL TO ALL
SITES BEGINNING DURING THE DAY SATURDAY . IFR CEILINGS AND VISIBILITY
WILL PREVAIL FOR THE REMAINDER OF THE FORECAST PERIOD WITH THIS
SYSTEM.



&&

.PREV DISCUSSION... /ISSUED 958 PM CST FRI FEB 27 2015/

DISCUSSION...
MOST OF THE SNOW HAS TAPERED OFF THIS EVENING BUT NOT BEFORE A
NARROW MESOSCALE BAND OF VERY HEAVY SNOW DUMPED 5-7 INCHES
NORTH AND NORTHWEST OF TULSA. THE SECOND ROUND OF PRECIPITATION IS
ALREADY UNDERWAY HOWEVER AS AREAS OF SNOW ARE DEVELOPING ACROSS
PARTS OF CENTRAL AND SOUTHERN OKLAHOMA AS WARM ADVECTION
INCREASES. THE HRRR INDICATES THESE SNOW AREAS WILL EXPAND SLOWLY
NORTH OVERNIGHT AND INTENSIFY AROUND SUNRISE. AS A RESULT...HAVE
EXPANDED AND EXTENDED THE WINTER WEATHER ADVISORY TO INCLUDE OUR
ENTIRE FORECAST AREA FROM NOW UNTIL MIDNIGHT SATURDAY NIGHT. THE
ADVISORY WILL LIKELY NEED TO BE EXTENDED INTO SUNDAY MORNING IN
SOME PLACES.

THE HEAVIEST SNOWFALL IS STILL EXPECTED TO FALL ACROSS NORTHEAST
OKLAHOMA AND FAR NORTHWEST ARKANSAS SATURDAY MORNING INTO EARLY
AFTERNOON. A CHANGEOVER TO SOME LIGHT SLEET AND EVENTUALLY LIGHT
FREEZING RAIN AND/OR FREEZING DRIZZLE WILL OCCUR FROM SOUTH TO
NORTH SATURDAY AFTERNOON AND EVENING. ALTHOUGH THE FREEZING
RAIN/DRIZZLE IS EXPECTED TO BE LIGHT...TRAVEL PROBLEMS ARE LIKELY
EVEN DOWN TO THE RED RIVER GIVEN THE VERY COLD ANTECEDENT
TEMPERATURES.

HAVE UPDATED POPS...SNOW AMOUNTS AND TEMPS TONIGHT INTO SATURDAY
BASED ON CURRENT AND EXPECTED CONDITIONS.

UPDATE ON THE WAY.

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...WINTER WEATHER ADVISORY UNTIL MIDNIGHT SUNDAY FOR OKZ049-OKZ053-
     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 MIDNIGHT SUNDAY FOR ARZ001-ARZ002-
     ARZ010-ARZ011-ARZ019-ARZ020-ARZ029.

&&

$$

AVIATION...06

National Weather Service Weather Forecast Office