[MCD] SWOMCD

Mon Jan 15 00:34:46 UTC 2007

ACUS11 KWNS 150037
SWOMCD
SPC MCD 150037 
MOZ000-ARZ000-TXZ000-OKZ000-150600-

MESOSCALE DISCUSSION 0064
NWS STORM PREDICTION CENTER NORMAN OK
0637 PM CST SUN JAN 14 2007

AREAS AFFECTED...SW MO/SE OK/NE AND CNTRL TX/NW AR

CONCERNING...WINTER MIXED PRECIPITATION 

VALID 150037Z - 150600Z

PERIODS OF SLEET AND FREEZING RAIN ARE EXPECTED ACROSS SOUTHWEST
MISSOURI...SOUTHEAST OKLAHOMA...NORTHEAST AND CENTRAL TEXAS...AND
NORTHWEST ARKANSAS THIS EVENING. ACCUMULATIONS ARE EXPECTED TO BE
AROUND .05 INCHES TO .10 INCHES PER HOUR.

PRECIPITATION RATES HAVE BEEN DIMINISHING THROUGHOUT THE AFTERNOON
OVER THE REGION...HOWEVER...SOME AREAS OF FROZEN PRECIPITATION ARE
STILL OCCURRING AND WILL CONTINUE FOR THE NEXT SEVERAL
HOURS...ESPECIALLY OVER NORTH CENTRAL TEXAS INCLUDING THE DALLAS/FT.
WORTH METROPLEX. LATEST RADAR IMAGERY CONTINUES TO SHOW DEVELOPING
PRECIPITATION BANDS THROUGHOUT THE REGION...AND AS THESE MOVE NEAR
AND AROUND THE 32 F ISOTHERM...A MIX OF LIQUID AND FROZEN PRECIP
WILL OCCUR...WITH SOME LOCALIZED HEAVY AMOUNTS. ADDITIONALLY...THE
FROZEN PRECIP WILL CONTINUE TO MOVE AND DEVELOP SOUTHEASTWARD WITH
THE 32 F LINE.

BOTH THE RUC AND NAM AGREE THAT THE AREAS OF HEAVY SLEET AND
FREEZING RAIN WILL CONTINUE TO DIMINISH INTO THE EVENING. THE LATEST
NAM SHOWS A NARROW WINDOW OF FOCUSED VERTICAL MOTION FOR THE NEXT
SEVERAL HOURS...AND THEN DIMINISHES BY ROUGHLY 06Z AND MOVES
EASTWARD. THUS...THE PERIOD OF SIGNIFICANT FROZEN PRECIPITATION WILL
MAINLY OCCUR WITHIN THAT TIME FRAME.

..LEVIT.. 01/15/2007

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

...NOTICE...
SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A
SCHEDULED BASIS FROM DECEMBER 1 THROUGH FEBRUARY 28...FOUR
TIMES A DAY...AROUND 00 UTC...06 UTC...12 UTC...AND 18 UTC
FOR SIGNIFICANT SHORT RANGE WINTER WEATHER EVENTS.

ATTN...WFO...LZK...SGF...SHV...TSA...FWD...OUN...EWX...SJT...

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36159499 38009344 37839234 37049194 35959282 34869371
32659518 31589636 31119773 