SWOMCD
SPC MCD 011025
KSZ000-011330-
MESOSCALE DISCUSSION 2171
NWS STORM PREDICTION CENTER NORMAN OK
0425 AM CST SAT DEC 01 2007
AREAS AFFECTED...PARTS WEST CENTRAL KS
CONCERNING...FREEZING RAIN
VALID 011025Z - 011330Z
A SHORT DURATION OF FREEZING RAIN WITH RATES UP TO 0.05 INCH IN A 3
HOUR PERIOD WILL BE POSSIBLE ACROSS PART OF WEST CENTRAL KS FROM
GREELEY/WICHITA COUNTIES TO ELLIS/GRAHAM COUNTIES...WITH LIGHTER
AMOUNTS FROM PARTS OF SCOTT TO RUSH COUNTIES. FREEZING RAIN SHOULD
BEGIN BY 12Z...AND THEN END BY MID MORNING AS SURFACE TEMPERATURES
RISE ABOVE 32 F.
SURFACE OBSERVATIONS DURING THE LAST 1-2 HOURS ACROSS SW INTO WEST
CENTRAL KS HAVE SHOWN INCREASING SURFACE DEWPOINTS INTO THE
MID-UPPER 20S WHILE SURFACE TEMPERATURES HAVE HOVERED AROUND THE
29-31 F RANGE. RECENT OBSERVATIONS INDICATED LIGHT PRECIPITATION
DEVELOPING ACROSS PARTS OF SW KS. THIS TREND IS EXPECTED TO
CONTINUE AND EXPAND ACROSS WEST CENTRAL KS WITH SOME INCREASE IN
PRECIPITATION RATES AS LARGE SCALE ASCENT EVIDENT IN AREA OF COOLING
CLOUD TOPS SPREADING EWD INTO THE CENTRAL PLAINS. FORECAST MODELS
AGREE THAT AS THE CO SURFACE LOW CONTINUES TO DEEPEN AND MOVE TOWARD
ERN CO BY EARLY AFTERNOON...SURFACE WINDS ACROSS MUCH OF KS WILL
VEER TO SLY AND COMBINED WITH STRONG LOW LEVEL WAA RESULT IN RISING
SURFACE TEMPERATURES. THUS...FREEZING RAIN EVENT ACROSS THIS PART
OF W CENTRAL KS IS EXPECTED TO BE OF SHORT DURATION.
.PETERS.. 12/01/2007
..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...GID...DDC...GLD...
39099910 38489943 38260005 38240117 38380170 38700175
39140115 39409986 39419958
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