HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
510 AM CST TUE FEB 1 2011
ARZ001-002-010-011-019-020-029-OKZ049-053>076-021100-
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK-
CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK-
LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK-
OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK-
PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK-
WASHINGTON OK-WASHINGTON AR-
510 AM CST TUE FEB 1 2011
…MAJOR AND POTENTIALLY LIFE THREATENING WINTER STORM AFFECTING
THE REGION TODAY WITH BLIZZARD CONDITIONS EXPECTED ACROSS
NORTHEAST OKLAHOMA…
THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.
.DAY ONE…TODAY AND TONIGHT.
THUNDERSTORMS WITH DANGEROUS LIGHTNING.
RISK…LIMITED.
AREA…EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
ONSET…ONGOING.
WINTER WEATHER.
SNOW ACCUMULATION.
RISK…SIGNIFICANT.
AREA…MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
MOST SIGNIFICANT IMPACTS ALONG AND NORTH OF INTERSTATE 44.
ONSET…ONGOING.
ICE ACCUMULATION.
RISK…LIMITED.
AREA…SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS.
ONSET…ONGOING.
WIND CHILL.
RISK…SIGNIFICANT.
AREA…MOST OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
ONSET…TODAY.
SIGNIFICANT WINDS.
RISK…LIMITED.
AREA…NORTHEAST OKLAHOMA.
ONSET…ONGOING .
DISCUSSION…
A POWERFUL UPPER LEVEL STORM SYSTEM CURRENTLY ACROSS WESTERN TEXAS
WILL SWEEP ACROSS THE REGION TODAY…CARVING OUT A PATH OF SEVERE
WINTER WEATHER THAT WILL IMPACT THE REGION FOR THE NEXT SEVERAL
DAYS. ONGOING THUNDERSTORM ACTIVITY WILL LARGELY REMAIN ACROSS TEXAS
…HOWEVER ISOLATED THUNDER WILL CONTINUE ACROSS EASTERN OKLAHOMA
AND NORTHWEST ARKANSAS THIS MORNING AS AN EVER EXPANDING AREA OF
PREDOMINANTLY SNOW CONTINUES TO DEVELOP.
THE STRENGTHENING LOW PRESSURE OVER TEXAS WILL CONTINUE DRAWING COLD
AIR SOUTH AT THIS TIME. WITH A COMPLETELY COOLED COLUMN IN PLACE…
COMMON SNOWFALL TOTALS ALONG AND NORTH OF INTERSTATE 44 OF 10 TO 14
INCHES WITH LOCAL AMOUNTS OF 18 TO 20 INCHES POSSIBLE ACROSS EXTREME
NORTHEAST OKLAHOMA BY EARLY AFTERNOON. NORTH WINDS INCREASING
WITH GUSTS IN THE 25 TO 35 MPH RANGE EXPECTED THIS MORNING.
BLIZZARD CONDITIONS WILL RESULT FROM THESE WINDS COMBINING WITH
THE HEAVY SNOW. REDUCED VISIBILITIES TO NEAR ZERO ALONG AND NORTH
OF INTERSTATE 44 CAN BE EXPECTED THIS MORNING. LIGHTER AMOUNTS OF
SNOW…UP TO 3 INCHES ACROSS PARTS OF SOUTHEAST OKLAHOMA WILL BE
POSSIBLE. ADDITIONALLY…A NARROW BAND OF ICE ACCUMULATION WILL
REMAIN POSSIBLE FROM SOUTHEAST OK INTO WEST CENTRAL ARKANSAS. UP
TO A TENTH OF AN INCH OF ICE ACCUMULATION IS POSSIBLE THIS
MORNING.
THE UPPER SYSTEM WILL CONTINUE TO LIFT EAST AND NORTHEAST ACROSS THE
REGION. BY AFTERNOON…THE SNOW WILL BEGIN TO TAPER OFF FROM
SOUTHWEST TO NORTHEAST. WHILE SNOWFALL WILL DECREASE THIS
AFTERNOON AND TONIGHT…WINDS WILL REMAIN STRONG ENOUGH AT LEAST INTO THE
EVENING THAT BLOWING SNOW WILL CONTINUE TO CREATE DRIFTS AND LOWER
VISIBILITIES…ESPECIALLY ACROSS FAR NORTHEAST OKLAHOMA AND
NORTHWEST ARKANSAS. ADDITIONALLY…THE BITTERLY COLD AIR IN PLACE
WILL RESULT IN SINGLE DIGIT LOW TEMPERATURES ACROSS MOST OF THE
AREA TONIGHT.
SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT…
SPOTTER ACTIVATION NOT EXPECTED.
.DAYS TWO THROUGH SEVEN…WEDNESDAY THROUGH MONDAY.
WEDNESDAY THROUGH FRIDAY…DANGEROUS WIND CHILL POTENTIAL.
SATURDAY AND SUNDAY…NO HAZARDS.
MONDAY…FIRE WEATHER POTENTIAL.
EXTENDED DISCUSSION…
THE UPPER STORM SYSTEM WILL HAVE DEPARTED…HOWEVER THE COLD AIR
LEFT IN PLACE WILL BE EXACERBATED BY CLEAR SKIES AND SNOW PACK. THIS
LEAVES THE POTENTIAL FOR LOW TEMPERATURES TO BOTTOM OUT IN THE -5 TO
-10 BELOW ZERO RANGE ACROSS NORTHEAST OKLAHOMA AND NORTHWEST
ARKANSAS THURSDAY MORNING. BY FRIDAY AFTERNOON…THE COLD AIR WILL BEGIN
TO LOSE ITS GRIP…AND ABOVE FREEZING HIGH TEMPERATURES ARE
ANTICIPATED AREA WIDE BY SATURDAY. THE UPPER PATTERN LATER IN THE
WEEK WILL BECOME ACTIVE…WITH LOW CHANCES FOR RAIN AND SNOW
MAINTAINED FOR FRIDAY…SUNDAY AND MONDAY