WINTER STORM WATCH
Issue Date: 1014 AM CST TUE DEC 22 2009
Expiration: 600 PM CST FRI DEC 25 2009

...HOLIDAY TRAVEL TO BE SEVERELY IMPACTED BY SIGNIFICANT WINTER
STORM BEGINNING WEDNESDAY...
.A DANGEROUS AND POTENTIALLY LIFE THREATENING WINTER STORM IS
EXPECTED TO IMPACT MUCH OF THE REGION WEDNESDAY THROUGH FRIDAY.
STRONG LOW PRESSURE WILL DEVELOP ACROSS THE SOUTHERN PLAINS ON
WEDNESDAY...AND INTENSIFY AS IT MOVES SLOWLY NORTH INTO IOWA ON
FRIDAY. THE FIRST ROUND OF SNOWFALL WILL START ON WEDNESDAY...
BUILDING NORTHWARD OUT OF NEBRASKA AND IOWA AND BECOMING
WIDESPREAD DURING THE AFTERNOON AND NIGHTTIME HOURS. WARMER
TEMPERATURES ALOFT WILL CREATE POTENTIAL FOR FREEZING RAIN AND
SLEET THROUGH MUCH OF NORTHWEST IOWA...NORTHEAST NEBRASKA...AND
EXTREME SOUTHEAST SOUTH DAKOTA WEDNESDAY NIGHT INTO THURSDAY. THE
GREATEST THREAT FOR PERSISTENT SNOWFALL APPEARS TO HAVE SHIFTED
MORE TO THE NORTHWEST THROUGH THE EARLY PARTS OF THE STORM...
FAVORING HEAVIER SNOWFALL THROUGH EASTERN SOUTH DAKOTA AND
NORTHERN PORTIONS OF SOUTHWEST MINNESOTA.
AS THE LOW PRESSURE AREA STRENGTHENS THURSDAY AND THURSDAY
NIGHT... NORTH TO NORTHEAST WINDS WILL INCREASE...WITH WIDESPREAD
SNOW AND BLOWING SNOW THURSDAY NIGHT INTO FRIDAY. WITH GUSTY
WINDS LIKELY TO REACH 25 TO 35 MPH LATER THURSDAY THROUGH
FRIDAY...AREAS OF BLIZZARD OR NEAR BLIZZARD CONDITIONS APPEAR
PROBABLE.
HEAVY SNOW IN EXCESS OF 10 INCHES IS LIKELY WITH THIS STORM...
WITH SOME AMOUNTS IN EXCESS OF 15 INCHES ESPECIALLY THROUGH
SOUTHEAST SOUTH DAKOTA. ICE ACCUMULATIONS FROM A QUARTER TO A
THIRD OF AN INCH WILL ALSO BE POSSIBLE FOR AREAS ROUGHLY
SOUTHEAST OF A SIOUX CITY TO SPENCER LINE.
LEADING INTO THE SYSTEM TODAY AND TONIGHT...AREAS OF FREEZING
DRIZZLE ARE POSSIBLE.
MNZ071-072-080-081-097-230015-
/O.CON.KFSD.WS.A.0007.091224T0000Z-091226T0000Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-PIPESTONE-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
PIPESTONE
1013 AM CST TUE DEC 22 2009
...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH FRIDAY AFTERNOON...
A WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH FRIDAY AFTERNOON.
* TIMING...SNOW WILL SPREAD NORTH ACROSS THE AREA WEDNESDAY
  AFTERNOON AND EVENING. WHILE SNOW MAY TAPER OFF FOR A TIME ON
  THURSDAY...SNOW SHOULD BECOME WIDESPREAD AGAIN LATER THURSDAY
  INTO FRIDAY.
* ACCUMULATIONS...SNOWFALL TOTALS OF 10 TO 14 INCHES WILL BE
  POSSIBLE WITH THE STORM SYSTEM FROM LATER WEDNESDAY INTO
  FRIDAY MORNING.
* WIND AND VISIBILITY...NORTHEAST WINDS OF 10 TO 20 MPH CAN BE
  EXPECTED WEDNESDAY...INCREASING GRADUALLY TO 15 TO 30 MPH
  THURSDAY. WINDS WILL BECOME MORE NORTHERLY THURSDAY NIGHT AND
  FRIDAY AS SUSTAINED WINDS REACH 25 TO 35 MPH. THE WIND
  COMBINED WITH THE SNOW MAY REDUCE VISIBILITIES TO NEAR ZERO AT
  TIMES.
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.
&&
$$

HAZARDOUS WEATHER OUTLOOK
Issue Date: 943 AM CST TUE DEC 22 2009
Expiration: 600 AM CST WED DEC 23 2009

Expires:200912231200;;
FLUS43 KFSD 221543
HWOFSD
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
0943 AM CST TUE DEC 22 2009
SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-231200-
AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA-
CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE-
DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON-
IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN-
LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN-
OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN-
SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON-
0943 AM CST TUE DEC 22 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA.
.DAY ONE...TODAY AND TONIGHT
WINTER WEATHER...
AREAS OF LIGHT FREEZING DRIZZLE AND A FEW FLURRIES MAY MAKE FOR
SOME SLIPPERY TRAVEL TODAY AND TONIGHT.
WIND AND FOG...
DENSE FOG WITH VISIBILITIES A QUARTER MILE OR LESS WILL CONTINUE
OVER PART OF NORTHWEST IOWA THIS MORNING...FROM IDA GROVE TO
STORM LAKE. VISIBILITIES ARE EXPECTED TO IMPROVE TO AROUND A MILE
EARLY THIS AFTERNOON.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
A MAJOR WINTER STORM WILL MOVE SLOWLY THROUGH THE AREA FROM
WEDNESDAY AFTERNOON THROUGH FRIDAY. IT APPEARS THE HEAVIEST
SNOWFALL OF 13 TO 17 INCHES SHOULD BE WEST OF INTERSTATE
29...WITH GRADUALLY LESSER AMOUNTS EXPECTED EAST OF INTERSTATE
29...BUT STILL APPROACHING A FOOT IN MANY AREAS. THE STRONG LOW
PRESSURE SYSTEM MOVING NORTHWARD FROM MISSOURI TO IOWA THROUGH
THURSDAY WILL BRING SOME MILDER AIR ALOFT INTO NORTHWEST
IOWA...WHERE PRECIPITATION SHOULD BE A MIX OF SNOW...
FREEZING RAIN...AND SLEET FROM WEDNESDAY INTO THURSDAY...BEFORE
CHANGING TO ALL SNOW BY LATE THURSDAY. STRONG NORTHERLY WINDS
WILL KICK IN ON THE BACKSIDE OF THE LOW PRESSURE THURSDAY
AFTERNOON AND EVENING...CAUSING WIDESPREAD BLOWING SNOW...IF NOT
BLIZZARD CONDITIONS...TO DEVELOP. THE SNOW AND BLOWING SNOW
SHOULD GRADUALLY TAPER OFF FROM WEST TO EAST OVER THE AREA FRIDAY
NIGHT INTO SATURDAY MORNING.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.
&&
FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.
$$