SD to get the biggest snow
Posted by JAC on 12/23/2009, 8:34 am



HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
527 AM CST WED DEC 23 2009

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-241130-
TRAVERSE-BIG STONE-CORSON-CAMPBELL-MCPHERSON-BROWN-MARSHALL-
ROBERTS-WALWORTH-EDMUNDS-DAY-DEWEY-POTTER-FAULK-SPINK-CLARK-
CODINGTON-GRANT-HAMLIN-DEUEL-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES-
LYMAN-BUFFALO-
527 AM CST WED DEC 23 2009 /427 AM MST WED DEC 23 2009/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
MINNESOTA...CENTRAL SOUTH DAKOTA...NORTH CENTRAL SOUTH DAKOTA AND
NORTHEAST SOUTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT
A MAJOR WINTER STORM WILL BE AFFECTING ALL OF THE UPPER MIDWEST. WIDESPREAD
SNOW WILL DEVELOP TODAY AND TONIGHT. THE WINTER STORM WARNING WILL
TAKE EFFECT THIS EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
SNOW WILL INTENSIFY THURSDAY MORNING AND CONTINUE INTO FRIDAY NIGHT.
STORM TOTAL SNOWFALL AMOUNTS WILL RANGE FROM 8 TO 16 INCHES WITH
SOME LOCATIONS RECEIVING AS MUCH AS 20 INCHES. NORTHERLY WINDS WILL
ALSO INCREASE LATE THURSDAY AND PERSIST THROUGH THE DURATION OF
THE STORM. WIND SPEEDS RANGING FROM 25 TO 40 MPH WITH HIGHER GUSTS
ARE POSSIBLE. THIS SNOW COMBINED WITH THE STRONG NORTH WINDS WILL
RESULT IN WHITEOUT CONDITIONS AT TIMES ALONG WITH HEAVY DRIFTING
SNOW. THE SNOW AND WINDS WILL DIMINISH SATURDAY AND SATURDAY NIGHT
AS THE RESPONSIBLE SURFACE LOW PRESSURE AREA LIFTS SLOWLY AWAY
FROM THE REGION. THE WINTER STORM WARNING WILL CONTINUE THROUGH
SATURDAY MORNING.


URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ABERDEEN SD
511 AM CST WED DEC 23 2009

...A MAJOR WINTER STORM WILL OCCUR WEDNESDAY NIGHT INTO FRIDAY
EVENING...

.A STRONG AREA OF LOW PRESSURE WILL MOVE FROM THE SOUTHERN PLAINS
INTO IOWA BY FRIDAY MORNING AND INTENSIFY. AS THIS OCCURS...WIDESPREAD
SNOW WILL DEVELOP ACROSS THE AREA FROM THIS AFTERNOON THROUGH
TONIGHT. THE SNOW WILL BE HEAVY AT TIMES. ON THURSDAY INTO
FRIDAY...STRONG NORTH WINDS WILL DEVELOP CAUSING WIDESPREAD
BLOWING AND HEAVY DRIFTING SNOW. VISIBILITIES WILL BE NEAR ZERO AT TIMES.

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-231915-
/O.EXT.KABR.WS.W.0007.091224T0000Z-091226T1200Z/
TRAVERSE-BIG STONE-CORSON-CAMPBELL-MCPHERSON-BROWN-MARSHALL-
ROBERTS-WALWORTH-EDMUNDS-DAY-DEWEY-POTTER-FAULK-SPINK-CLARK-
CODINGTON-GRANT-HAMLIN-DEUEL-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES-
LYMAN-BUFFALO-
INCLUDING THE CITIES OF...WHEATON...ORTONVILLE...MCLAUGHLIN...
HERREID...EUREKA...ABERDEEN...BRITTON...SISSETON...MOBRIDGE...
IPSWICH...WEBSTER...TIMBER LAKE...GETTYSBURG...FAULKTON...
REDFIELD...CLARK...WATERTOWN...MILBANK...CASTLEWOOD...
CLEAR LAKE...FORT PIERRE...ONIDA...PIERRE...HIGHMORE...MILLER...
MURDO...PRESHO...FORT THOMPSON
511 AM CST WED DEC 23 2009 /411 AM MST WED DEC 23 2009/

...WINTER STORM WARNING NOW IN EFFECT FROM 6 PM CST /5 PM MST/
THIS EVENING TO 6 AM CST /5 AM MST/ SATURDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 6 PM CST /5 PM
MST/ THIS EVENING TO 6 AM CST /5 AM MST/ SATURDAY.

* SNOW WILL DEVELOP THROUGH THE AFTERNOON AND EVENING AND
 INTENSIFY OVERNIGHT AND INTO THURSDAY. THE SNOW WILL HEAVY AT
 TIMES THROUGH FRIDAY. THE SNOW WILL CONTINUE INTO FRIDAY NIGHT
 BEFORE ENDING SATURDAY.

* SNOWFALL AMOUNTS WILL RANGE FROM 8 TO 12 INCHES ACROSS CENTRAL
 AND NORTH CENTRAL SOUTH DAKOTA...12 TO 16 INCHES IN THE JAMES
 VALLEY...AND 16 TO 20 INCHES ACROSS NORTHEAST SOUTH DAKOTA AND
 WEST CENTRAL MINNESOTA.

* WINDS WILL INCREASE TO 25 TO 40 MPH BY THURSDAY NIGHT...WITH
 HIGHER GUSTS POSSIBLE. THESE STRONG NORTHERLY WINDS WILL
 CONTINUE THROUGH FRIDAY NIGHT.

* INTENSE SNOWFALL RATES OF AN INCH OR TWO AN HOUR WILL BE
 POSSIBLE LATE WEDNESDAY NIGHT THROUGH FRIDAY. BY LATE
 THURSDAY...THE SNOW WILL COMBINE WITH STRONG NORTH WINDS TO
 CREATE WIDESPREAD BLOWING SNOW WITH NEAR WHITEOUT CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

MOHR





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Big Storm for Central CONUS - JAC, 12/23/2009, 7:48 am
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