HAZARDOUS WEATHER OUTLOOK
Issue Date: 533 AM CST WED DEC 23 2009
Expiration: 530 AM CST THU DEC 24 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.
.SPOTTER INFORMATION STATEMENT...
NO SPOTTER ACTIVATION ANTICIPATED.
$$

WINTER STORM WARNING
Issue Date: 511 AM CST WED DEC 23 2009
Expiration: 600 AM CST SAT DEC 26 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

WINTER STORM WATCH
Issue Date: 216 PM CST MON DEC 21 2009
Expiration: 600 PM CST FRI DEC 25 2009

...SIGNIFICANT STORM SYSTEM POSSIBLE WEDNESDAY NIGHT INTO FRIDAY...
.A STRONG AREA OF LOW PRESSURE IS EXPECTED TO DEVELOP IN THE
SOUTHERN PLAINS ON WEDNESDAY AND THEN MOVE NORTHEAST ACROSS
MISSOURI...IOWA AND INTO THE GREAT LAKES REGION BY SATURDAY
MORNING. WIDESPREAD SNOW IS EXPECTED TO DEVELOP ACROSS CENTRAL AND
NORTHEAST SOUTH DAKOTA ALONG WITH WEST CENTRAL MINNESOTA BY
WEDNESDAY AFTERNOON. IF THE STORM MOVES ALONG THIS TRACK...THE
EASTERN HALF OF SOUTH DAKOTA AND WEST CENTRAL MINNESOTA COULD
SEE SOME SIGNIFICANT SNOWFALL BY FRIDAY MORNING. ALONG WITH THE
SNOW...STRONG NORTH WINDS COULD DEVELOP CAUSING BLOWING SNOW AND
LOW VISIBILITIES. THE TRACK OF THE STORM COULD STILL
CHANGE...RESULTING IN CHANGES IN THE LOCATION OF THE MOST
SIGNIFICANT SNOWFALL AND WIND.
MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-220500-
/O.NEW.KABR.WS.A.0008.091224T0000Z-091226T0000Z/
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
216 PM CST MON DEC 21 2009 /116 PM MST MON DEC 21 2009/
...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
FRIDAY AFTERNOON...
THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM WEDNESDAY EVENING THROUGH
FRIDAY AFTERNOON.
* WIDESPREAD LIGHT SNOW IS EXPECTED TO DEVELOP WEDNESDAY
AFTERNOON...WITH SNOWFALL INTENSITY INCREASING DURING THE DAY ON
THURSDAY. DEPENDING ON THE STORM TRACK...ADDITIONAL SNOWFALL MAY
BE POSSIBLE THROUGH FRIDAY EVENING.
* DEPENDING ON THE TRACK OF THIS STORM SYSTEM...SNOWFALL AMOUNTS
COULD RANGE FROM 4 TO 6 INCHES...IN NORTH CENTRAL SOUTH
DAKOTA...TO AS MUCH AS 5 TO 9 INCHES ELSEWHERE.
* NORTHERLY WINDS OF 10 TO 15 MPH ON WEDNESDAY ARE EXPECTED TO
INCREASE DURING THE DAY ON THURSDAY TO 20 TO 25 MPH. STRONGER
WINDS MAY BE POSSIBLE BY FRIDAY AFTERNOON.
* DEPENDING ON SNOWFALL INTENSITY AND SUSTAINED
WINDS...VISIBILITIES MAY BE RESTRICTED TO A FEW MILES ON
THURSDAY. A FURTHER REDUCTION IN VISIBILITIES MAY BE POSSIBLE ON
FRIDAY DEPENDING ON THE STRENGTH OF THE WINDS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.
$$
SD/AD