Alert archive / North Dakota / Wind Chill Advisories in 2011

Wind Chill Advisory 47, NWS Bismarck, ND

February 20, 2011Foster County, Sheridan County, Wells County, North Dakota

NWS Bismarck, ND issued this wind chill advisory at Feb 20, 2011, 3:00 PM CST for Foster County, Sheridan County, Wells County, North Dakota. It took effect at Feb 20, 2011, 6:00 PM CST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Feb 20, 2011, 3:00 PM CST (21:00 UTC)
In effect from
Feb 20, 2011, 6:00 PM CST
Expired
Feb 21, 2011, 9:00 AM CST
In force
15 hr
Issued by
NWS Bismarck, ND

Counties Foster County, ND, Sheridan County, ND, Wells County, ND

The radar

The Bismarck radar (KBIS), 121 km from the middle of the area, began a volume at 21:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.0 hours before the alert went out and 118 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Bismarck Municip, ND at 12:00Z on 2011-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 12:00Z on 2011-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
642 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
258 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

623 
WWUS43 KBIS 202100
WSWBIS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BISMARCK ND
300 PM CST SUN FEB 20 2011

....WINTER STORM WILL CONTINUE OVER SOUTHERN NORTH DAKOTA
THROUGH THIS EVENING...

.MODERATE TO HEAVY SNOW IS FORECAST TO CONTINUE PRIMARILY ALONG
AND SOUTH OF THE INTERSTATE 94 CORRIDOR THIS AFTERNOON AND EVENING.
THE HEAVIEST SNOWFALL ACCUMULATIONS ARE EXPECTED NEAR THE SOUTH
DAKOTA BORDER...WHERE 8 TO 10 INCHES WITH ISOLATED AMOUNTS UP TO
12 INCHES ARE EXPECTED BY TONIGHT...WITH 5 TO 7 INCHES POSSIBLE
FROM MANDAN TO DICKINSON. FURTHER NORTH...SNOWFALL AMOUNTS WILL
BE LESS...WITH 3 TO 5 INCHES LIKELY FROM TROTTERS TO BISMARCK AND
JAMESTOWN. STRONG NORTHEASTERLY WINDS WILL CAUSE REDUCED
VISIBILITIES IN BLOWING AND DRIFTING SNOW THROUGH TONIGHT. WINDS
ARE FORECAST TO BE STRONGEST IN THE NAPOLEON...LAMOURE.... ASHLEY
AND ELLENDALE AREAS THIS AFTERNOON AND EVENING...WHERE WIND GUSTS
TO 40 MPH ARE EXPECTED TO CREATE BLIZZARD CONDITIONS WITH
VISIBILITIES OF LESS THAN ONE QUARTER OF A MILE. TRAVEL WILL
LIKELY BECOME VERY HAZARDOUS...IF NOT IMPOSSIBLE IN THESE AREAS.

ACROSS NORTHERN NORTH DAKOTA...NORTHEAST WINDS 10 TO 20 MPH...
COUPLED WITH SUB ZERO AIR TEMPERATURES WILL RESULT IN WIND CHILLS
OF AROUND 25 BELOW THIS AFTERNOON...THEN FALLING TO BETWEEN 25
AND 35 BELOW ZERO TONIGHT.

THOSE TRAVELING ACROSS WESTERN AND CENTRAL NORTH DAKOTA THIS
AFTERNOON AND EVENING SHOULD BE SURE TO CARRY A WINTER SURVIVAL
KIT...CHECK ROAD CONDITIONS BY DIALING 5 1 1...AND ADVISE OTHERS
OF YOUR TRAVEL PLANS.

NDZ048-051-210500-
/O.EXT.KBIS.BZ.W.0007.000000T0000Z-110221T1200Z/
LA MOURE-DICKEY-
INCLUDING THE CITIES OF...EDGELEY...OAKES
300 PM CST SUN FEB 20 2011

...BLIZZARD WARNING NOW IN EFFECT UNTIL 6 AM CST MONDAY...

THE BLIZZARD WARNING IS NOW IN EFFECT UNTIL 6 AM CST MONDAY. 

* SNOW WILL CONTINUE THROUGH TONIGHT. STORM TOTAL SNOWFALL 
  AMOUNTS OF 8 TO 10 INCHES WITH LOCALLY HIGHER AMOUNTS ACROSS 
  THE SOUTH DAKOTA BORDER ARE EXPECTED. 

* STRONG NORTHEAST WINDS GUSTING TO 40 MPH ARE EXPECTED TO 
  CREATE BLIZZARD CONDITIONS WITH VISIBILITIES OF LESS THAN ONE 
  QUARTER OF A MILE THIS AFTERNOON AND TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

NDZ047-050-210500-
/O.CON.KBIS.BZ.W.0007.000000T0000Z-110221T0600Z/
LOGAN-MCINTOSH-
INCLUDING THE CITIES OF...NAPOLEON...ASHLEY
300 PM CST SUN FEB 20 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT. 

* SNOW WILL CONTINUE THROUGH THIS EVENING. STORM TOTAL SNOWFALL 
  AMOUNTS OF 8 TO 10 INCHES WITH LOCALLY HIGHER AMOUNTS ACROSS 
  THE SOUTH DAKOTA BORDER ARE EXPECTED. 

* STRONG NORTHEAST WINDS GUSTING TO 40 MPH ARE EXPECTED TO 
  CREATE BLIZZARD CONDITIONS WITH VISIBILITIES OF LESS THAN ONE 
  QUARTER OF A MILE THIS AFTERNOON AND EVENING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

NDZ031>034-040>046-210500-
/O.CON.KBIS.WS.W.0002.000000T0000Z-110221T0600Z/
GOLDEN VALLEY-BILLINGS-STARK-MORTON-SLOPE-HETTINGER-GRANT-BOWMAN-
ADAMS-SIOUX-EMMONS-
INCLUDING THE CITIES OF...BEACH...MEDORA...DICKINSON...MANDAN...
MARMARTH...MOTT...ELGIN...BOWMAN...HETTINGER...FORT YATES...
LINTON
300 PM CST SUN FEB 20 2011 /200 PM MST SUN FEB 20 2011/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
/11 PM MST/ TONIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
/11 PM MST/ TONIGHT. 

* SNOW WILL CONTINUE THROUGH THIS EVENING. STORM TOTAL SNOWFALL 
  AMOUNTS OF 6 TO 9 INCHES WITH LOCALLY HIGHER AMOUNTS ACROSS 
  THE SOUTH DAKOTA BORDER ARE EXPECTED. 

* STRONG NORTHEAST WINDS GUSTING TO 30 MPH WILL CREATE 
  SIGNIFICANTLY REDUCED VISIBILITIES IN BLOWING SNOW THROUGH 
  THIS EVENING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS.

&&

$$

NDZ021>023-025-210500-
/O.NEW.KBIS.WC.Y.0047.110221T0000Z-110221T1500Z/
MCLEAN-SHERIDAN-WELLS-FOSTER-
INCLUDING THE CITIES OF...GARRISON...MCCLUSKY...HARVEY...
CARRINGTON
300 PM CST SUN FEB 20 2011

...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST MONDAY...

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM CST
MONDAY. 

* NORTHEAST WINDS 10 TO 20 MPH AND SUB ZERO AIR TEMPERATURES WILL 
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

NDZ001>005-009>013-210500-
/O.EXT.KBIS.WC.Y.0046.000000T0000Z-110221T1500Z/
DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-
MCHENRY-PIERCE-
INCLUDING THE CITIES OF...CROSBY...BOWBELLS...MOHALL...
BOTTINEAU...ROLLA...WILLISTON...NEW TOWN...MINOT...TOWNER...RUGBY
300 PM CST SUN FEB 20 2011

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 9 AM CST MONDAY...

THE WIND CHILL ADVISORY IS NOW IN EFFECT UNTIL 9 AM CST MONDAY. 

* NORTHEAST WINDS 5 TO 15 MPH AND SUB ZERO AIR TEMPERATURES WILL
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW THIS AFTERNOON AND
  TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

NDZ017>020-035>037-210500-
/O.CON.KBIS.WW.Y.0047.000000T0000Z-110221T0600Z/
MCKENZIE-DUNN-MERCER-OLIVER-BURLEIGH-KIDDER-STUTSMAN-
INCLUDING THE CITIES OF...WATFORD CITY...KILLDEER...BEULAH...
HAZEN...CENTER...BISMARCK...STEELE...JAMESTOWN
300 PM CST SUN FEB 20 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. 

* SNOW WILL CONTINUE THROUGH THIS EVENING...WITH 3 TO 5 INCHES 
  OF SNOW POSSIBLE. 

* STRONG NORTHEAST WINDS GUSTING TO 30 MPH WILL CREATE 
  SIGNIFICANTLY REDUCED VISIBILITIES IN BLOWING SNOW THROUGH 
  THIS EVENING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS.

&&

$$

TM
4 follow-up statements
223 
WWUS43 KBIS 210344
WSWBIS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BISMARCK ND
944 PM CST SUN FEB 20 2011

....WINTER STORM WILL CONTINUE OVER SOUTHERN NORTH DAKOTA THROUGH
THIS EVENING...THEN SLOWLY IMPROVE OVERNIGHT...

.MODERATE SNOW IS FORECAST TO CONTINUE PRIMARILY ALONG AND SOUTH
OF THE INTERSTATE 94 CORRIDOR OVERNIGHT. THE HEAVIEST SNOWFALL
ACCUMULATIONS ARE EXPECTED NEAR THE SOUTH DAKOTA BORDER...WHERE 8
TO 12 INCHES WITH ISOLATED AMOUNTS UP TO 15 INCHES ARE EXPECTED
TONIGHT...WITH 4 TO 7 INCHES POSSIBLE FROM MANDAN TO DICKINSON.
FURTHER NORTH AND WEST...THE SNOW HAS TAPERED OFF AND WIND CHILLS
ARE NOW THE PRIMARY THREAT. NORTHEASTERLY WINDS MAY STILL CAUSE
REDUCED VISIBILITIES IN BLOWING AND DRIFTING SNOW THROUGH TONIGHT.
WINDS ARE FORECAST TO BE STRONGEST IN THE NAPOLEON...LAMOURE....
ASHLEY AND ELLENDALE AREAS THIS EVENING...WHERE WIND GUSTS TO 40
MPH ARE EXPECTED TO CREATE BLIZZARD CONDITIONS WITH VISIBILITIES
OF LESS THAN ONE QUARTER OF A MILE. TRAVEL WILL LIKELY BECOME VERY
HAZARDOUS...IF NOT IMPOSSIBLE IN THESE AREAS.

ACROSS NORTHERN AND WESTERN NORTH DAKOTA...NORTHEAST WINDS 10 TO
20 MPH... COUPLED WITH SUB ZERO AIR TEMPERATURES WILL RESULT IN
WIND CHILLS OF AROUND 25 BELOW THIS AFTERNOON...THEN FALLING TO
BETWEEN 25 AND 35 BELOW ZERO TONIGHT.

THOSE TRAVELING ACROSS WESTERN AND CENTRAL NORTH DAKOTA THIS
AFTERNOON AND EVENING SHOULD BE SURE TO CARRY A WINTER SURVIVAL
KIT...CHECK ROAD CONDITIONS BY DIALING 5 1 1...AND ADVISE OTHERS
OF YOUR TRAVEL PLANS.

NDZ047-050-211145-
/O.EXB.KBIS.WW.Y.0047.110221T0600Z-110221T1200Z/
/O.CON.KBIS.BZ.W.0007.000000T0000Z-110221T0600Z/
LOGAN-MCINTOSH-
INCLUDING THE CITIES OF...NAPOLEON...ASHLEY
944 PM CST SUN FEB 20 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST MONDAY...

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 6 AM CST MONDAY. A BLIZZARD WARNING REMAINS IN EFFECT UNTIL
MIDNIGHT CST TONIGHT.

* SNOW WILL CONTINUE THROUGH THIS EVENING...WITH 3 TO 5 INCHES 
  OF SNOW POSSIBLE. 

* STRONG NORTHEAST WINDS GUSTING TO 30 MPH WILL CREATE
  SIGNIFICANTLY REDUCED VISIBILITIES IN BLOWING SNOW THROUGH THIS
  EVENING. BLIZZARD CONDITIONS AT TIMES THOUGH MIDNIGHT CST...THEN
  A SLOW IMPROVEMENT OVERNIGHT. SNOW AND BLOWING SNOW WILL STILL
  CONTINUE THROUGH 6 AM CST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS.

&&

$$

NDZ048-051-211145-
/O.CON.KBIS.BZ.W.0007.000000T0000Z-110221T1200Z/
LA MOURE-DICKEY-
INCLUDING THE CITIES OF...EDGELEY...OAKES
944 PM CST SUN FEB 20 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY. 

* SNOW WILL CONTINUE THROUGH TONIGHT. STORM TOTAL SNOWFALL 
  AMOUNTS OF 8 TO 10 INCHES WITH LOCALLY HIGHER AMOUNTS ACROSS 
  THE SOUTH DAKOTA BORDER ARE EXPECTED. 

* STRONG NORTHEAST WINDS GUSTING TO 40 MPH ARE EXPECTED TO 
  CREATE BLIZZARD CONDITIONS WITH VISIBILITIES OF LESS THAN ONE 
  QUARTER OF A MILE THIS AFTERNOON AND TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

NDZ042-045-046-211145-
/O.EXB.KBIS.WW.Y.0047.110221T0600Z-110221T1200Z/
/O.CON.KBIS.WS.W.0002.000000T0000Z-110221T0600Z/
GRANT-SIOUX-EMMONS-
INCLUDING THE CITIES OF...ELGIN...FORT YATES...LINTON
944 PM CST SUN FEB 20 2011 /844 PM MST SUN FEB 20 2011/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
/11 PM MST/ TONIGHT...
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST /5 AM MST/
MONDAY...

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 6 AM CST /5 AM MST/ MONDAY. A WINTER STORM WARNING REMAINS
IN EFFECT UNTIL MIDNIGHT CST /11 PM MST/ TONIGHT.

* SNOW WILL CONTINUE THROUGH THIS EVENING...WITH 3 TO 5 INCHES 
  OF SNOW POSSIBLE. 

* STRONG NORTHEAST WINDS GUSTING TO 30 MPH WILL CREATE 
  SIGNIFICANTLY REDUCED VISIBILITIES IN BLOWING SNOW THROUGH 
  THIS EVENING...AND WILL CONTINUE THROUGH 6 AM MONDAY MORNING.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS.

&&

$$

NDZ031>034-040-041-043-044-211145-
/O.EXB.KBIS.WC.Y.0046.110221T0600Z-110221T1500Z/
/O.CON.KBIS.WS.W.0002.000000T0000Z-110221T0600Z/
GOLDEN VALLEY-BILLINGS-STARK-MORTON-SLOPE-HETTINGER-BOWMAN-ADAMS-
INCLUDING THE CITIES OF...BEACH...MEDORA...DICKINSON...MANDAN...
MARMARTH...MOTT...BOWMAN...HETTINGER
944 PM CST SUN FEB 20 2011 /844 PM MST SUN FEB 20 2011/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
/11 PM MST/ TONIGHT...
...WIND CHILL ADVISORY IN EFFECT UNTIL 9 AM CST /8 AM MST/
MONDAY...

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL 9 AM CST /8 AM MST/ MONDAY. A
WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST /11 PM
MST/ TONIGHT. 

* NORTHEAST WINDS 5 TO 15 MPH AND SUB ZERO AIR TEMPERATURES WILL 
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW THIS AFTERNOON AND 
  TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

NDZ017>020-035>037-211145-
/O.EXB.KBIS.WC.Y.0046.110221T0600Z-110221T1500Z/
/O.CON.KBIS.WW.Y.0047.000000T0000Z-110221T0600Z/
MCKENZIE-DUNN-MERCER-OLIVER-BURLEIGH-KIDDER-STUTSMAN-
INCLUDING THE CITIES OF...WATFORD CITY...KILLDEER...BEULAH...
HAZEN...CENTER...BISMARCK...STEELE...JAMESTOWN
944 PM CST SUN FEB 20 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL ADVISORY IN EFFECT UNTIL 9 AM CST MONDAY...

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL 9 AM CST MONDAY. A WINTER
WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT. 

* NORTHEAST WINDS 5 TO 15 MPH AND SUB ZERO AIR TEMPERATURES WILL 
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW THIS AFTERNOON AND 
  TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

NDZ001>005-009>013-211145-
/O.CON.KBIS.WC.Y.0046.000000T0000Z-110221T1500Z/
DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-
MCHENRY-PIERCE-
INCLUDING THE CITIES OF...CROSBY...BOWBELLS...MOHALL...
BOTTINEAU...ROLLA...WILLISTON...NEW TOWN...MINOT...TOWNER...RUGBY
944 PM CST SUN FEB 20 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY. 

* NORTHEAST WINDS 5 TO 15 MPH AND SUB ZERO AIR TEMPERATURES WILL 
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW THIS AFTERNOON AND 
  TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

NDZ021>023-025-211145-
/O.CON.KBIS.WC.Y.0047.000000T0000Z-110221T1500Z/
MCLEAN-SHERIDAN-WELLS-FOSTER-
INCLUDING THE CITIES OF...GARRISON...MCCLUSKY...HARVEY...
CARRINGTON
944 PM CST SUN FEB 20 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY. 

* NORTHEAST WINDS 10 TO 20 MPH AND SUB ZERO AIR TEMPERATURES 
  WILL RESULT IN WIND CHILLS OF 25 TO 35 BELOW TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$
WAA
342 
WWUS43 KBIS 210559
WSWBIS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BISMARCK ND
1159 PM CST SUN FEB 20 2011

....WINTER STORM WILL CONTINUE OVER SOUTH CENTRAL NORTH DAKOTA
ALONG THE SOUTH DAKOTA BORDER OVERNIGHT...THEN IMPROVE TOWARDS
DAYBREAK MONDAY MORNING...

.MODERATE SNOW IS FORECAST TO CONTINUE PRIMARILY ALONG AND SOUTH
OF THE INTERSTATE 94 CORRIDOR OVERNIGHT. ONLY 1 TO 2 INCHES OF
SNOWFALL IS EXPECTED AFTER MIDNIGHT SOUTH OF INTERSTATE
94...MAINLY SOUTH OF BISMARCK AND MANDAN TO SOUTH OF
JAMESTOWN...BUT BLOWING AND DRIFTING SNOW WILL CONTINUE TO CREATE
TRAVEL DIFFICULTIES. NORTHEASTERLY WINDS ARE EXPECTED TO CAUSE
REDUCED VISIBILITIES IN BLOWING AND DRIFTING SNOW THROUGH THE
OVERNIGHT HOURS...ESPECIALLY IN THE LAMOURE AND ELLENDALE AREAS
OVERNIGHT...WHERE WIND GUSTS TO 30 MPH ARE EXPECTED TO CREATE
BLIZZARD CONDITIONS WITH VISIBILITIES OF LESS THAN ONE QUARTER OF
A MILE. TRAVEL WILL LIKELY BECOME VERY HAZARDOUS...IF NOT
IMPOSSIBLE IN THESE AREAS. FURTHER NORTH AND WEST...THE SNOW HAS
TAPERED OFF AND WIND CHILLS ARE NOW THE PRIMARY THREAT.

ACROSS NORTHERN AND WESTERN NORTH DAKOTA...NORTHEAST WINDS 10 TO
20 MPH... COUPLED WITH SUB ZERO AIR TEMPERATURES WILL RESULT IN
WIND CHILLS OF 25 AND 35 BELOW ZERO.

THOSE TRAVELING ACROSS WESTERN AND CENTRAL NORTH DAKOTA THIS
AFTERNOON AND EVENING SHOULD BE SURE TO CARRY A WINTER SURVIVAL
KIT...CHECK ROAD CONDITIONS BY DIALING 5 1 1...AND ADVISE OTHERS
OF YOUR TRAVEL PLANS.

NDZ047-050-211200-
/O.EXP.KBIS.BZ.W.0007.000000T0000Z-110221T0600Z/
/O.CON.KBIS.WW.Y.0047.110221T0600Z-110221T1200Z/
LOGAN-MCINTOSH-
INCLUDING THE CITIES OF...NAPOLEON...ASHLEY
1159 PM CST SUN FEB 20 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
MONDAY...
...BLIZZARD WARNING WILL EXPIRE AT MIDNIGHT CST TONIGHT...

THE BLIZZARD WARNING WILL EXPIRE AT MIDNIGHT CST TONIGHT. A
WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY. 


* SNOW WILL CONTINUE OVERNIGHT...WITH AN INCH OR 2 OF SNOW
  POSSIBLE.

* STRONG NORTHEAST WINDS GUSTING TO 30 MPH WILL CREATE
  SIGNIFICANTLY REDUCED VISIBILITIES IN BLOWING SNOW TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS.

&&



$$

NDZ042-045-046-211200-
/O.EXP.KBIS.WS.W.0002.000000T0000Z-110221T0600Z/
/O.CON.KBIS.WW.Y.0047.110221T0600Z-110221T1200Z/
GRANT-SIOUX-EMMONS-
INCLUDING THE CITIES OF...ELGIN...FORT YATES...LINTON
1159 PM CST SUN FEB 20 2011 /1059 PM MST SUN FEB 20 2011/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST /5 AM
MST/ MONDAY...
...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT CST /11 PM MST/
TONIGHT...

THE WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT CST /11 PM MST/
TONIGHT. A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM
CST /5 AM MST/ MONDAY. 



* SNOW WILL CONTINUE TONIGHT...WITH 1 TO 2 INCHES OF SNOW
  POSSIBLE AFTER MIDNIGHT.

* STRONG NORTHEAST WINDS GUSTING TO 30 MPH WILL CREATE
  SIGNIFICANTLY REDUCED VISIBILITIES IN BLOWING SNOW THROUGH MONDAY
  MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS.

&&





$$

NDZ031>034-040-041-043-044-211400-
/O.EXP.KBIS.WS.W.0002.000000T0000Z-110221T0600Z/
/O.CON.KBIS.WC.Y.0046.110221T0600Z-110221T1500Z/
GOLDEN VALLEY-BILLINGS-STARK-MORTON-SLOPE-HETTINGER-BOWMAN-ADAMS-
INCLUDING THE CITIES OF...BEACH...MEDORA...DICKINSON...MANDAN...
MARMARTH...MOTT...BOWMAN...HETTINGER
1159 PM CST SUN FEB 20 2011 /1059 PM MST SUN FEB 20 2011/

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST /8 AM
MST/ MONDAY...
...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT CST /11 PM MST/
TONIGHT...

THE WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT CST /11 PM MST/
TONIGHT. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
/8 AM MST/ MONDAY. 


* NORTHEAST WINDS 5 TO 15 MPH AND SUB ZERO AIR TEMPERATURES WILL
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW TONIGHT.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

NDZ017>020-035>037-211400-
/O.EXP.KBIS.WW.Y.0047.000000T0000Z-110221T0600Z/
/O.CON.KBIS.WC.Y.0046.110221T0600Z-110221T1500Z/
MCKENZIE-DUNN-MERCER-OLIVER-BURLEIGH-KIDDER-STUTSMAN-
INCLUDING THE CITIES OF...WATFORD CITY...KILLDEER...BEULAH...
HAZEN...CENTER...BISMARCK...STEELE...JAMESTOWN
1159 PM CST SUN FEB 20 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY...
...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT CST TONIGHT...

THE WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT CST TONIGHT.
A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY. 



* NORTHEAST WINDS 5 TO 15 MPH AND SUB ZERO AIR TEMPERATURES WILL
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW TONIGHT.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

NDZ048-051-211200-
/O.CON.KBIS.BZ.W.0007.000000T0000Z-110221T1200Z/
LA MOURE-DICKEY-
INCLUDING THE CITIES OF...EDGELEY...OAKES
1159 PM CST SUN FEB 20 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY. 

* SNOW WILL CONTINUE THROUGH TONIGHT...WITH 1 TO 2 INCHES MORE
  EXPECTED AFTER MIDNIGHT. STORM TOTAL SNOWFALL AMOUNTS OF 8 TO
  10 INCHES WITH LOCALLY HIGHER AMOUNTS ACROSS THE SOUTH DAKOTA
  BORDER ARE EXPECTED.

* STRONG NORTHEAST WINDS GUSTING TO 40 MPH ARE EXPECTED TO 
  CREATE BLIZZARD CONDITIONS WITH VISIBILITIES OF LESS THAN ONE 
  QUARTER OF A MILE THIS AFTERNOON AND TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

NDZ001>005-009>013-211400-
/O.CON.KBIS.WC.Y.0046.000000T0000Z-110221T1500Z/
DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-
MCHENRY-PIERCE-
INCLUDING THE CITIES OF...CROSBY...BOWBELLS...MOHALL...
BOTTINEAU...ROLLA...WILLISTON...NEW TOWN...MINOT...TOWNER...RUGBY
1159 PM CST SUN FEB 20 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY. 

* NORTHEAST WINDS 5 TO 15 MPH AND SUB ZERO AIR TEMPERATURES WILL
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

NDZ021>023-025-211400-
/O.CON.KBIS.WC.Y.0047.000000T0000Z-110221T1500Z/
MCLEAN-SHERIDAN-WELLS-FOSTER-
INCLUDING THE CITIES OF...GARRISON...MCCLUSKY...HARVEY...
CARRINGTON
1159 PM CST SUN FEB 20 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY. 

* NORTHEAST WINDS 10 TO 20 MPH AND SUB ZERO AIR TEMPERATURES 
  WILL RESULT IN WIND CHILLS OF 25 TO 35 BELOW TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

JV
024 
WWUS43 KBIS 210959
WSWBIS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BISMARCK ND
359 AM CST MON FEB 21 2011

...WIND CHILL ADVISORY IN EFFECT UNTIL 9 AM CST FOR MOST OF
WESTERN AND CENTRAL NORTH DAKOTA...

.TEMPERATURES ACROSS NORTHERN NORTH DAKOTA RANGED FROM 15 TO 20
BELOW ZERO...WITH 10 TO 15 BELOW ZERO OVER SOUTHWESTERN AND PARTS
OF SOUTH CENTRAL NORTH DAKOTA. WINDS OF 5 TO 15 MPH...COMBINED
WITH THE SUB ZERO TEMPERATURES...WERE CREATING WIND CHILLS OF 25
TO 35 BELOW ZERO. THESE LOW WIND CHILL VALUES ARE EXPECTED TO
PERSIST UNTIL AROUND 9 AM CST OR 8 AM MST THIS MORNING.

IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A
HAT AND GLOVES. FROST BITE OR HYPOTHERMIA MAY RESULT IF
PRECAUTIONS ARE NOT TAKEN.


NDZ048-051-211100-
/O.CAN.KBIS.BZ.W.0007.000000T0000Z-110221T1200Z/
LA MOURE-DICKEY-
INCLUDING THE CITIES OF...EDGELEY...OAKES
359 AM CST MON FEB 21 2011

...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS CANCELLED THE
BLIZZARD WARNING. 

CONDITIONS HAVE IMPROVED GREATLY...WITH DECREASED WINDS AND SNOW INTENSITY.

$$

NDZ042-045>047-050-211100-
/O.CAN.KBIS.WW.Y.0047.000000T0000Z-110221T1200Z/
GRANT-SIOUX-EMMONS-LOGAN-MCINTOSH-
INCLUDING THE CITIES OF...ELGIN...FORT YATES...LINTON...
NAPOLEON...ASHLEY
359 AM CST MON FEB 21 2011 /259 AM MST MON FEB 21 2011/

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

CONDITIONS HAVE IMPROVED GREATLY...WITH DECREASED WINDS AND SNOW INTENSITY.

$$

NDZ001>005-009>013-211500-
/O.CON.KBIS.WC.Y.0046.000000T0000Z-110221T1500Z/
DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-
MCHENRY-PIERCE-
INCLUDING THE CITIES OF...CROSBY...BOWBELLS...MOHALL...
BOTTINEAU...ROLLA...WILLISTON...NEW TOWN...MINOT...TOWNER...RUGBY
359 AM CST MON FEB 21 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING. 

* NORTHEAST WINDS 5 TO 15 MPH AND SUB ZERO AIR TEMPERATURES WILL
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

NDZ021>023-025-211500-
/O.CON.KBIS.WC.Y.0047.000000T0000Z-110221T1500Z/
MCLEAN-SHERIDAN-WELLS-FOSTER-
INCLUDING THE CITIES OF...GARRISON...MCCLUSKY...HARVEY...
CARRINGTON
359 AM CST MON FEB 21 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING. 

* NORTHEAST WINDS 10 TO 20 MPH AND SUB ZERO AIR TEMPERATURES WILL
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

NDZ017>020-031>037-040-041-043-044-211500-
/O.CON.KBIS.WC.Y.0046.000000T0000Z-110221T1500Z/
MCKENZIE-DUNN-MERCER-OLIVER-GOLDEN VALLEY-BILLINGS-STARK-MORTON-
BURLEIGH-KIDDER-STUTSMAN-SLOPE-HETTINGER-BOWMAN-ADAMS-
INCLUDING THE CITIES OF...WATFORD CITY...KILLDEER...BEULAH...
HAZEN...CENTER...BEACH...MEDORA...DICKINSON...MANDAN...BISMARCK...
STEELE...JAMESTOWN...MARMARTH...MOTT...BOWMAN...HETTINGER
359 AM CST MON FEB 21 2011 /259 AM MST MON FEB 21 2011/

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST /8 AM
MST/ THIS MORNING...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST /8 AM MST/
THIS MORNING. 

* NORTHEAST WINDS 5 TO 15 MPH AND SUB ZERO AIR TEMPERATURES WILL
  RESULT IN WIND CHILLS OF 25 TO 35 BELOW THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT THE COMBINATION OF WIND AND VERY
COLD AIR WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE
NOT TAKEN.  IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A
HAT AND GLOVES.

&&

$$

JV
071 
WWUS43 KBIS 211504
WSWBIS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BISMARCK ND
904 AM CST MON FEB 21 2011

...WIND CHILL ADVISORY WAS ALLOWED TO EXPIRE...

.WINDS ARE DECREASING ACROSS THE AREA AS TEMPERATURES ARE 
INCREASING. WIND CHILL VALUES ARE GREATER THAN 25 BELOW ACROSS THE 
REGION. AS A RESULT...THE WIND CHILL ADVISORY WAS ALLOWED TO EXPIRE.

NDZ001>005-009>013-017>020-031>037-040-041-043-044-211615-
/O.EXP.KBIS.WC.Y.0046.000000T0000Z-110221T1500Z/
DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-
MCHENRY-PIERCE-MCKENZIE-DUNN-MERCER-OLIVER-GOLDEN VALLEY-BILLINGS-
STARK-MORTON-BURLEIGH-KIDDER-STUTSMAN-SLOPE-HETTINGER-BOWMAN-
ADAMS-
INCLUDING THE CITIES OF...CROSBY...BOWBELLS...MOHALL...
BOTTINEAU...ROLLA...WILLISTON...NEW TOWN...MINOT...TOWNER...
RUGBY...WATFORD CITY...KILLDEER...BEULAH...HAZEN...CENTER...
BEACH...MEDORA...DICKINSON...MANDAN...BISMARCK...STEELE...
JAMESTOWN...MARMARTH...MOTT...BOWMAN...HETTINGER
904 AM CST MON FEB 21 2011 /804 AM MST MON FEB 21 2011/

...WIND CHILL ADVISORY HAS EXPIRED...

THE WIND CHILL ADVISORY IS NO LONGER IN EFFECT. 

* WIND CHILLS HAVE INCREASED TO GREATER THAN 25 BELOW ZERO.

$$

NDZ021>023-025-211615-
/O.EXP.KBIS.WC.Y.0047.000000T0000Z-110221T1500Z/
MCLEAN-SHERIDAN-WELLS-FOSTER-
INCLUDING THE CITIES OF...GARRISON...MCCLUSKY...HARVEY...
CARRINGTON
904 AM CST MON FEB 21 2011

...WIND CHILL ADVISORY HAS EXPIRED...

THE WIND CHILL ADVISORY IS NO LONGER IN EFFECT. 

* WIND CHILLS HAVE INCREASED TO GREATER THAN 25 BELOW ZERO.

$$

TM

What forecasters said that day

The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Bismarck, ND wrote its last area forecast discussion before this wind chill advisory went out at Feb 20, 1:12 PM CST, 1 hour 48 minutes earlier.

Area forecast discussion, Feb 20, 1:12 PM CST, 1 hour 48 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
112 PM CST SUN FEB 20 2011

.UPDATE...ONLY ADJUSTED THE HOURLY SENSIBLE WEATHER GRIDS. MAY
NEED TO EXTEND THE WIND CHILL ADVISORY ACROSS THE NORTHERN CWA
THROUGH TONIGHT. MAY ALSO NEED TO EXTEND THE BLIZZARD WARNING PAST
MIDNIGHT TONIGHT. THE REMAINING HEADLINES APPEAR TO BE IN GOOD
SHAPE. UPDATED TEXT PRODUCTS OUT SHORTLY.

&&

.DISCUSSION...RADAR AND SURFACE OBS CONTINUE TO INDICATE
WIDESPREAD SNOW SHOWERS EXTENDING ACROSS SOUTHERN NORTH DAKOTA
THIS AFTERNOON. WINDS ARE BEGINNING TO INCREASE ACROSS THE
SOUTHEASTERN CWA SO BLIZZARD CONDITIONS MAY BE REALIZED THERE
LATER THIS AFTERNOON. THE 12Z GFS/GEM TRY TO CLEAR THE HEAVY SNOW
OUT OF THE SOUTHEASTERN CWA BY MIDNIGHT TONIGHT...WHEREAS THE 12Z
ECMWF/NAM MAINTAIN THE HEAVIEST QPF ACROSS THE SOUTHEASTERN CWA
THROUGH 12Z MONDAY. THE BLIZZARD WARNING MAY NEED TO BE EXTENDED
PAST 06Z TONIGHT...DEPENDING ON COLLABORATION EFFORTS WITH THE
SURROUNDING OFFICES.

&&

.AVIATION...ONCE AGAIN...MAIN CONCERN DURING THIS TAF PERIOD WILL BE THE
SOUTHERN TERMINALS OF KDIK/KBIS/KJMS...WHERE MODERATE TO HEAVY
SNOWFALL AND BLOWING SNOW CAN BE EXPECTED TO REDUCE VISIBILITIES TO
3/4 MILE OR LESS. CEILINGS SHOULD ALSO DROP INTO THE IFR
CATEGORY...ESPECIALLY DURING THE PERIODS OF HEAVIER SNOWFALL. THE
WORST OF THE SNOW AND WINDS SHOULD BEGIN TO TAPER OFF BETWEEN 00Z-
06Z AS THE RESPONSIBLE SYSTEM SLIDES TO THE SOUTHEAST AND HIGH
PRESSURE ATTEMPTS TO ASSERT DOMINANCE. HOWEVER...LOW CLOUDINESS
COULD LINGER THROUGH MOST OF THE TAF PERIOD AS PLENTY OF MOISTURE
REMAINS IN THE LOWER LEVELS. THE NORTHERN TERMINALS OF KISN/KMOT
SHOULD REMAIN WITHIN VFR CONDITIONS...ALTHOUGH SOME BRIEF PERIOD
OF MVFR AND LIGHT SNOW SHOWERS CAN NOT BE RULED OUT.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
WINTER WEATHER ADVISORY UNTIL MIDNIGHT CST TONIGHT FOR
NDZ017>020-035>037.

WINTER STORM WARNING UNTIL MIDNIGHT CST /11 PM MST/ TONIGHT FOR
NDZ031>034-040>046.

WIND CHILL ADVISORY UNTIL 4 PM CST THIS AFTERNOON FOR NDZ001>005-
009>013.

BLIZZARD WARNING UNTIL MIDNIGHT CST TONIGHT FOR NDZ047-048-050-
051.

&&

TM...UPDATE
BPN...AVIATION
Hazardous weather outlook, Feb 20, 10:27 AM CST, 4 hours 33 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
1027 AM CST SUN FEB 20 2011

NDZ031>034-040>046-211630-
GOLDEN VALLEY-BILLINGS-STARK-MORTON-SLOPE-HETTINGER-GRANT-BOWMAN-
ADAMS-SIOUX-EMMONS-
1027 AM CST SUN FEB 20 2011 /927 AM MST SUN FEB 20 2011/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
NORTH DAKOTA AND SOUTHWEST NORTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

WINTER STORM WARNING REMAINS IN EFFECT TODAY THROUGH THIS EVENING FOR
SNOW AND BLOWING SNOW.

LOWS TONIGHT OF 5 TO 10 BELOW ZERO WITH NORTH WINDS OF 5 TO 10
MPH WILL BRING WIND CHILLS OF 25 TO 30 BELOW ZERO TONIGHT.

FOR MORE INFORMATION ON THE WINTER STORM...SEE WWW/WEATHER.GOV/BIS.

FOR INFORMATION ON ROAD CONDITIONS...DIAL 5 1 1...OR VISIT THE
NORTH DAKOTA DEPARTMENT OF TRANSPORTATION WEB SITE AT
WWW.DOT.ND.GOV.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

COLD THURSDAY THROUGH SATURDAY WITH HIGHS ZERO TO 5 ABOVE AND LOWS
5 TO 20 BELOW ZERO.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS AND COOP OBSERVERS ARE ENCOURAGED TO REPORT SNOWFALL
AMOUNTS TO THE NATIONAL WEATHER SERVICE OFFICE IN BISMARCK.

NDZ017>020-035>037-211630-
MCKENZIE-DUNN-MERCER-OLIVER-BURLEIGH-KIDDER-STUTSMAN-
1027 AM CST SUN FEB 20 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST NORTH
DAKOTA...SOUTH CENTRAL NORTH DAKOTA...SOUTHEAST NORTH DAKOTA AND
SOUTHWEST NORTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

WINTER WEATHER ADVISORY REMAINS IN EFFECT TODAY THROUGH THIS
EVENING FOR SNOW AND BLOWING SNOW.

LOWS TONIGHT OF 5 TO 10 BELOW ZERO WITH NORTH WINDS OF 10 TO 15 MPH
WILL BRING WIND CHILLS OF 25 TO 30 BELOW ZERO TONIGHT.

FOR MORE INFORMATION ON THE WINTER STORM...SEE
WWW/WEATHER.GOV/BIS.

FOR INFORMATION ON ROAD CONDITIONS...DIAL 5 1 1...OR VISIT THE
NORTH DAKOTA DEPARTMENT OF TRANSPORTATION WEB SITE AT
WWW.DOT.ND.GOV.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

COLD THURSDAY THROUGH SATURDAY WITH HIGHS ZERO TO 5 ABOVE AND LOWS
5 TO 20 BELOW ZERO.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS AND COOP OBSERVERS ARE ENCOURAGED TO REPORT SNOWFALL
AMOUNTS TO THE NATIONAL WEATHER SERVICE OFFICE IN BISMARCK.

NDZ021>023-025-211630-
MCLEAN-SHERIDAN-WELLS-FOSTER-
1027 AM CST SUN FEB 20 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
NORTH DAKOTA AND SOUTHEAST NORTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SNOW SHOWERS ARE EXPECTED TODAY FOR THESE
COUNTIES THIS AFTERNOON. AREAS OF BLOWING AND DRIFTING SNOW WILL
ALSO BE POSSIBLE. HOWEVER...IMPACTS SHOULD REMAIN MINIMAL.

LOWS TONIGHT OF 5 TO 10 BELOW ZERO WITH NORTH WINDS OF 10 MPH
WILL BRING WIND CHILLS OF 25 TO 30 BELOW ZERO TONIGHT.

FOR MORE INFORMATION ON THE WINTER STORM...SEE WWW/WEATHER.GOV/BIS.

FOR INFORMATION ON ROAD CONDITIONS...DIAL 5 1 1...OR VISIT THE
NORTH DAKOTA DEPARTMENT OF TRANSPORTATION WEB SITE AT
WWW.DOT.ND.GOV.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

COLD THURSDAY THROUGH SATURDAY WITH HIGHS ZERO TO 5 ABOVE AND LOWS
5 TO 20 BELOW ZERO.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

NDZ001>005-009>013-211630-
DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-
MCHENRY-PIERCE-
1027 AM CST SUN FEB 20 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
NORTH DAKOTA AND NORTHWEST NORTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

A WIND CHILL ADVISORY IS IN EFFECT TODAY FOR WIND CHILLS OF 25 TO
40 BELOW ZERO. ACROSS SOUTHERN NORTH DAKOTA VARIOUS ADVISORIES AND
WARNINGS ARE IN EFFECT FOR SNOW AND BLOWING SNOW.

LOWS TONIGHT OF 10 TO 20 BELOW ZERO WITH NORTH WINDS OF 5 TO 10 MPH
WILL BRING WIND CHILLS OF 25 TO 30 BELOW ZERO TONIGHT.

FOR MORE INFORMATION ON THE WINTER STORM...SEE WWW/WEATHER.GOV/BIS.

FOR INFORMATION ON ROAD CONDITIONS...DIAL 5 1 1...OR VISIT THE
NORTH DAKOTA DEPARTMENT OF TRANSPORTATION WEB SITE AT
WWW.DOT.ND.GOV.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

COLD THURSDAY THROUGH SATURDAY WITH HIGHS ZERO TO 5 ABOVE AND LOWS
5 TO 20 BELOW ZERO.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

NDZ047-048-050-051-211630-
LOGAN-LA MOURE-MCINTOSH-DICKEY-
1027 AM CST SUN FEB 20 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST NORTH
DAKOTA.

.DAY ONE...TODAY AND TONIGHT

A BLIZZARD WARNING HAS BEEN ISSUED FOR TODAY THROUGH THIS EVENING
FOR THE COMBINATION OF HEAVY SNOW AND BLOWING SNOW. WINDS ARE
EXPECTED TO REACH 30 MPH WITH GUSTS TO 40 MPH AT TIMES. WHITEOUT
CONDITIONS ARE LIKELY AT TIMES WITH NEAR ZERO VISIBILITY. TRAVEL
IS NOT ADVISED.

LOWS TONIGHT OF ZERO TO 5 BELOW ZERO WITH NORTH WINDS DECREASING
TO 10 TO 20 MPH WILL BRING WIND CHILLS OF 25 TO 30 BELOW ZERO
TONIGHT.

FOR MORE INFORMATION ON THE WINTER STORM...SEE WWW/WEATHER.GOV/BIS.

FOR INFORMATION ON ROAD CONDITIONS...DIAL 5 1 1...OR VISIT THE
NORTH DAKOTA DEPARTMENT OF TRANSPORTATION WEB SITE AT
WWW.DOT.ND.GOV.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

COLD THURSDAY THROUGH SATURDAY WITH HIGHS ZERO TO 5 ABOVE AND LOWS
5 TO 20 BELOW ZERO.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS AND COOP OBSERVERS ARE ENCOURAGED TO REPORT SNOWFALL
AMOUNTS TO THE NATIONAL WEATHER SERVICE OFFICE IN BISMARCK.

TM

In the hours before

Local storm report, Feb 20, 11:11 AM CST, 3 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
1111 AM CST SUN FEB 20 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1110 AM     HEAVY SNOW       BOWMAN                  46.18N 103.39W
02/20/2011  E10.0 INCH       BOWMAN             ND   EMERGENCY MNGR

            STORM TOTAL SNOWFALL SO FAR. STILL SNOWING.

&&

TM
Special weather statement, Feb 20, 11:29 AM CST, 3 hours 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1129 AM CST SUN FEB 20 2011

NDZ031>034-040>047-050-201900-
GOLDEN VALLEY-BILLINGS-STARK-MORTON-SLOPE-HETTINGER-GRANT-BOWMAN-
ADAMS-SIOUX-EMMONS-LOGAN-MCINTOSH-
INCLUDING THE CITIES OF...BEACH...MEDORA...DICKINSON...MANDAN...
MARMARTH...MOTT...ELGIN...BOWMAN...HETTINGER...FORT YATES...
LINTON...NAPOLEON...ASHLEY
1129 AM CST SUN FEB 20 2011 /1029 AM MST SUN FEB 20 2011/

...WINTER STORM CONTINUES OVER SOUTHWEST AND SOUTH CENTRAL NORTH
DAKOTA...

AT 1130 AM CST...1030 AM MST...RADAR AND SURFACE OBSERVATIONS
INDICATED MODERATE TO HEAVY SNOW CONTINUING ALONG AND SOUTH OF A
LINE FROM TROTTERS...JUST SOUTH OF BISMARCK...EAST SOUTHEAST
THROUGH AND SOUTH OF WISHEK. THE NORTHERN EDGE OF THIS BAND OF
SNOW WILL REMAIN NEARLY STATIONARY OVER THE NEXT FEW
HOURS...SHIFTING AT TIMES FURTHER NORTH. DURING THIS
AFTERNOON...THE HEAVIER SNOWFALL IS EXPECTED TO SLOWLY MOVE MORE
OVER SOUTH CENTRAL AND SOUTHEASTERN PORTIONS OF THE STATE...AS THE
MAIN STORM SYSTEM MOVES FURTHER EAST.

SNOWFALL RATES OVER SOUTHWEST AND FAR SOUTH CENTRAL NORTH DAKOTA
ARE EXCEEDING ONE INCH PER HOUR...WITH ESTIMATED SNOWFALL IN
BOWMAN ALREADY AT 10 INCHES. VISIBILITIES IN SNOW AND BLOWING
SNOW NEAR THE SOUTH DAKOTA BORDER ARE ONE QUARTER OF A MILE OR
LESS.

IF POSSIBLE...DELAY TRAVEL OVER SOUTHWEST AND SOUTH CENTRAL NORTH
DAKOTA TODAY. SNOW COVERED ROADS AND LOW VISIBILITIES WILL MAKE
TRAVEL VERY HAZARDOUS.

HEINERT
Local storm report, Feb 20, 12:03 PM CST, 2 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
1203 PM CST SUN FEB 20 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 AM     SNOW             BOTTINEAU               48.83N 100.44W
02/20/2011  M1.0 INCH        BOTTINEAU          ND   CO-OP OBSERVER

            24 HOUR SNOWFALL TOTAL.

0800 AM     SNOW             DUNN CENTER             47.35N 102.62W
02/20/2011  M1.5 INCH        DUNN               ND   CO-OP OBSERVER

            24 HOUR SNOWFALL TOTAL.

0800 AM     SNOW             FLASHER                 46.46N 101.23W
02/20/2011  M2.0 INCH        MORTON             ND   CO-OP OBSERVER

            24 HOUR SNOWFALL TOTAL.

0815 AM     SNOW             KILLDEER                47.37N 102.75W
02/20/2011  M1.5 INCH        DUNN               ND   CO-OP OBSERVER

            24 HOUR SNOWFALL TOTAL.

0800 AM     SNOW             7 NW TAYLOR             46.97N 102.53W
02/20/2011  M2.3 INCH        STARK              ND   CO-OP OBSERVER

            24 HOUR SNOWFALL TOTAL.

&&

SWICHE
Local storm report, Feb 20, 12:59 PM CST, 2 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
1259 PM CST SUN FEB 20 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     SNOW             NEW SALEM               46.85N 101.41W
02/20/2011  M1.3 INCH        MORTON             ND   CO-OP OBSERVER

            24 HOUR SNOWFALL TOTAL.

1230 PM     SNOW             2 ENE GRASSY BUTTE      47.40N 103.21W
02/20/2011  M2.5 INCH        MCKENZIE           ND   CO-OP OBSERVER

            24 HOUR SNOWFALL TOTAL. SNOW HAS STOPPED.

&&

SWICHE
Special weather statement, Feb 20, 1:01 PM CST, 1 hour 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
101 PM CST SUN FEB 20 2011

NDZ031>034-040>048-050-051-202100-
GOLDEN VALLEY-BILLINGS-STARK-MORTON-SLOPE-HETTINGER-GRANT-BOWMAN-
ADAMS-SIOUX-EMMONS-LOGAN-LA MOURE-MCINTOSH-DICKEY-
INCLUDING THE CITIES OF...BEACH...MEDORA...DICKINSON...MANDAN...
MARMARTH...MOTT...ELGIN...BOWMAN...HETTINGER...FORT YATES...
LINTON...NAPOLEON...EDGELEY...ASHLEY...OAKES
101 PM CST SUN FEB 20 2011 /1201 PM MST SUN FEB 20 2011/

...WINTER STORM CONTINUES OVER SOUTHWEST AND SOUTH CENTRAL NORTH
DAKOTA...

AT 100 PM CST...NOON MST...RADAR AND SURFACE OBSERVATIONS
INDICATED MODERATE TO HEAVY SNOW CONTINUING ALONG AND SOUTH OF A
LINE FROM TROTTERS THROUGH DICKINSON...JUST SOUTH OF
BISMARCK...EAST SOUTHEAST THROUGH AND SOUTH OF WISHEK AND
ELLENDALE. THE NORTHERN EDGE OF THIS BAND OF SNOW WILL REMAIN
NEARLY STATIONARY OVER THE NEXT 1-2 HOURS...SHIFTING AT TIMES
FURTHER NORTH. DURING THIS AFTERNOON...THE HEAVIER SNOWFALL IS
EXPECTED TO SLOWLY MOVE MORE OVER SOUTH CENTRAL AND SOUTHEASTERN
PORTIONS OF THE STATE...AS THE MAIN STORM SYSTEM MOVES FURTHER
EAST.

SNOWFALL RATES OVER SOUTHWEST AND FAR SOUTH CENTRAL NORTH DAKOTA
CONTINUE TO EXCEED ONE INCH PER HOUR...ESPECIALLY OVER THE
SOUTHWEST WITH ESTIMATED SNOWFALL IN BOWMAN ALREADY AT 10 INCHES
OR MORE. VISIBILITIES IN SNOW AND BLOWING SNOW ACROSS MUCH OF
SOUTHWEST AND SOUTH CENTRAL NORTH DAKOTA ARE ONE QUARTER OF A
MILE OR LESS...ESPECIALLY IN OPEN COUNTRY.

IF POSSIBLE...DELAY TRAVEL OVER SOUTHWEST AND SOUTH CENTRAL NORTH
DAKOTA TODAY. SNOW COVERED ROADS AND LOW VISIBILITIES WILL MAKE
TRAVEL VERY HAZARDOUS.

NH
Special weather statement, Feb 20, 2:43 PM CST, 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
243 PM CST SUN FEB 20 2011

NDZ040-043-044-202300-
SLOPE-BOWMAN-ADAMS-
INCLUDING THE CITIES OF...MARMARTH...BOWMAN...HETTINGER
143 PM MST SUN FEB 20 2011

...HEAVY SNOW BAND OVER SOUTHWEST NORTH DAKOTA...

AT 130 PM MST...RADAR AND SURFACE OBSERVATIONS INDICATED A HEAVY
SNOW BAND STRETCHING ACROSS FAR SOUTHWEST ADAMS...BOWMAN...AND
WEST AND CENTRAL SLOPE COUNTIES. THIS BAND OF SNOW WILL REMAIN
NEARLY STATIONARY OVER THE NEXT 1-2 HOURS...BUT SHOULD GRADUALLY
DIMINISH IN INTENSITY LATER THIS AFTERNOON AS THE MAIN STORM
SYSTEM MOVES FURTHER EAST. LOCATIONS IMPACTED INCLUDE...BUT ARE
NOT LIMITED TO...BOWMAN...RHAME...MARMARTH...AND PRETTY BUTTE.
MAJOR ROADS IMPACTED INCLUDE HIGHWAY 12 AND HIGHWAY 85.

SNOWFALL RATES OVER SOUTHWEST NORTH DAKOTA WILL EXCEED ONE INCH
PER HOUR NEAR THIS AREA OF HEAVY SNOW. VISIBILITIES IN FALLING SNOW
AND BLOWING SNOW WILL BE LESS THAN ONE QUARTER OF A
MILE...ESPECIALLY IN OPEN COUNTRY.

TRAVELERS ARE URGED TO DELAY TRAVEL OVER SOUTHWEST NORTH DAKOTA
TODAY AND TONIGHT. SNOW COVERED ROADS AND LOW VISIBILITIES WILL
MAKE TRAVEL VERY HAZARDOUS.

HEINERT

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 20, 4:10 AM CSTBlizzard WarningBISDickey, LaMoure, Logan, McIntosh24 hr
Feb 20, 4:10 AM CSTWind Chill AdvisoryBISAdams, Billings, Bottineau, Bowman, Burke, Burleigh and 17 more29 hr

Nearby

Wind Chill Advisories in North Dakota, 2011Every wind chill advisory in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.