Alert archive / Minnesota / Blizzard Warnings in 2014

Blizzard Warning 6, NWS Sioux Falls, SD

February 20, 20145 counties in Iowa; 8 counties in Minnesota

NWS Sioux Falls, SD issued this blizzard warning at Feb 20, 2014, 7:44 PM CST for 5 counties in Iowa; 8 counties in Minnesota. It was in force for 8 hr. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 20, 2014, 7:44 PM CST (01:44 UTC)
Expired
Feb 21, 2014, 3:24 AM CST
In force
8 hr
Issued by
NWS Sioux Falls, SD

Counties Buena Vista County, IA, Clay County, IA, Dickinson County, IA, O'Brien County, IA, Osceola County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN

The radar

The Sioux Falls radar (KFSD), 89 km from the middle of the area, began a volume at 01:46 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.

What was reported inside it

TimeReportWhereRemark
Feb 21, 12:00 AM CSTSNOW 3.71 E Spirit Lake, IACOOP OBSERVER STATION SPIRIT LAKE /SPRI4/ SNOW DURATION 24 HOURS
Feb 21, 12:00 AM CSTSNOW 4.64 Nw Okoboji, IACOOP OBSERVER STATION VICKS CORNER-SPIRIT LAKE IOWA /VICI4/ SNOW DURATION 24 HOURS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.7 hours before the alert went out and 209 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, Minneapolis, MN at 00:00Z on 2014-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2014-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.19395878Sfc1 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
444 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
90 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.

145 
WWUS43 KFSD 210144
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
744 PM CST THU FEB 20 2014

IAZ002-003-013-014-022-MNZ080-081-089-090-210945-
/O.UPG.KFSD.WW.Y.0008.000000T0000Z-140221T0600Z/
/O.NEW.KFSD.BZ.W.0006.140221T0144Z-140221T1000Z/
OSCEOLA-DICKINSON-OBRIEN-CLAY-BUENA VISTA-MURRAY-COTTONWOOD-
NOBLES-JACKSON-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SHELDON...HARTLEY...SANBORN...SPENCER...
STORM LAKE...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
WORTHINGTON...JACKSON...LAKEFIELD
744 PM CST THU FEB 20 2014

...BLIZZARD WARNING IN EFFECT UNTIL 4 AM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT UNTIL 4 AM CST FRIDAY. THE WINTER
WEATHER ADVISORY IS NO LONGER IN EFFECT. 

* TIMING...STRONG NORTHWEST WINDS OF 25 TO 35 MPH WITH GUST TO 45
  MPH THROUGHOUT THE EVENING WILL GRADUALLY DECREASE AFTER
  MIDNIGHT. THESE STRONG WINDS WILL PRODUCE AREAS OF WHITE OUT
  CONDITIONS...REDUCING VISIBILITY TO NEAR ZERO AT TIMES. THE
  BLOWING SNOW MAY FREEZE ON AREA ROADWAYS...CREATING TREACHEROUS
  TRAVEL CONDITIONS. 

* WIND AND VISIBILITY...NORTHWEST WINDS OF 20 TO 35 MPH...WITH
  GUSTS UP TO 45 MPH WILL CONTINUE THIS EVENING. VISIBILITY WILL
  BE REDUCED TO AN EIGHTH OF A MILE OR LESS AT TIMES IN BLOWING
  SNOW.


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...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

MNZ071-072-097-098-210945-
/O.NEW.KFSD.BZ.W.0006.140221T0144Z-140221T1000Z/
LINCOLN-LYON-PIPESTONE-ROCK-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...PIPESTONE...LUVERNE
744 PM CST THU FEB 20 2014

...BLIZZARD WARNING IN EFFECT UNTIL 4 AM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT UNTIL 4 AM CST FRIDAY. 

* TIMING...STRONG NORTHWEST WINDS OF 25 TO 35 MPH WITH GUST TO 45
  MPH THROUGHOUT THE EVENING WILL GRADUALLY DECREASE AFTER
  MIDNIGHT. THESE STRONG WINDS WILL PRODUCE AREAS OF WHITE OUT
  CONDITIONS...REDUCING VISIBILITY TO NEAR ZERO AT TIMES. THE
  BLOWING SNOW MAY FREEZE ON AREA ROADWAYS...CREATING TREACHEROUS
  TRAVEL CONDITIONS. 

* WIND AND VISIBILITY...NORTHWEST WINDS OF 20 TO 35 MPH...WITH
  GUSTS UP TO 45 MPH WILL CONTINUE THIS EVENING. VISIBILITY WILL
  BE REDUCED TO AN EIGHTH OF A MILE OR LESS AT TIMES IN BLOWING
  SNOW.

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...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

IAZ021-032-210600-
/O.CON.KFSD.WW.Y.0008.000000T0000Z-140221T0600Z/
CHEROKEE-IDA-
INCLUDING THE CITIES OF...CHEROKEE...IDA GROVE...HOLSTEIN...
BATTLE CREEK
744 PM CST THU FEB 20 2014

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

* TIMING...STRONG NORTHWEST WINDS WILL CREATE AREAS OF BLOWING
  SNOW THROUGHOUT THE EVENING HOURS. THE BLOWING SNOW MAY FREEZE
  ON AREA ROADWAYS CAUSING DIFFICULT TRAVEL CONDITIONS.

* WIND AND VISIBILITY...NORTHWEST WINDS OF 20 TO 35 MPH...WITH
  GUSTS UP TO 45 MPH WILL CONTINUE THIS EVENING. VISIBILITY WILL
  BE REDUCED TO A MILE OR LESS AT TIMES DUE TO BLOWING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
2 follow-up statements
437 
WWUS43 KFSD 210622
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1222 AM CST FRI FEB 21 2014

IAZ002-013-022-MNZ071-072-080-089-097-098-210730-
/O.CAN.KFSD.BZ.W.0006.000000T0000Z-140221T1000Z/
OSCEOLA-OBRIEN-BUENA VISTA-LINCOLN-LYON-MURRAY-NOBLES-PIPESTONE-
ROCK-
INCLUDING THE CITIES OF...SIBLEY...SHELDON...HARTLEY...SANBORN...
STORM LAKE...TYLER...HENDRICKS...LAKE BENTON...IVANHOE...
MARSHALL...SLAYTON...FULDA...WORTHINGTON...PIPESTONE...LUVERNE
1222 AM CST FRI FEB 21 2014

...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
BLIZZARD WARNING. 

PER REPORTS FROM AREA LAW ENFORCEMENT...VISIBILITY HAS IMPROVED
ACROSS MUCH OF SOUTHWEST MINNESOTA AND NORTHWEST IOWA AS WINDS HAVE
DECREASED AND SNOW SHOWERS HAVE DIMINISHED ACROSS THE REGION.

ROADS REMAIN AT LEAST PARTIALLY SNOW COVERED AND SLIPPERY DUE TO
DRIFTING SNOW. THEREFORE TRAVEL WILL STILL BE DIFFICULT ACROSS THE
REGION...AND MOTORISTS MAY WANT TO CONSIDER POSTPONING TRAVEL PLANS
UNTIL ROAD CONDITIONS IMPROVE.

$$

IAZ021-032-210730-
/O.EXP.KFSD.WW.Y.0008.000000T0000Z-140221T0600Z/
CHEROKEE-IDA-
INCLUDING THE CITIES OF...CHEROKEE...IDA GROVE...HOLSTEIN...
BATTLE CREEK
1222 AM CST FRI FEB 21 2014

...WINTER WEATHER ADVISORY HAS EXPIRED...

VISIBILITY HAS IMPROVED ACROSS MUCH OF SOUTHWEST MINNESOTA AND
NORTHWEST IOWA AS WINDS HAVE DECREASED AND SNOW SHOWERS HAVE
DIMINISHED ACROSS THE REGION.

ROADS REMAIN AT LEAST PARTIALLY SNOW COVERED AND SLIPPERY DUE TO
DRIFTING SNOW. THEREFORE TRAVEL WILL STILL BE DIFFICULT ACROSS THE
REGION...AND MOTORISTS MAY WANT TO CONSIDER POSTPONING TRAVEL PLANS
UNTIL ROAD CONDITIONS IMPROVE.

$$

IAZ003-014-MNZ081-090-211000-
/O.CON.KFSD.BZ.W.0006.000000T0000Z-140221T1000Z/
DICKINSON-CLAY-COTTONWOOD-JACKSON-
INCLUDING THE CITIES OF...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
SPENCER...WINDOM...MOUNTAIN LAKE...JACKSON...LAKEFIELD
1222 AM CST FRI FEB 21 2014

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 4 AM CST EARLY THIS
MORNING...

* TIMING...STRONG NORTHWEST WINDS WILL SLOWLY DECREASE THROUGH THE
  EARLY MORNING HOURS. AS THE WINDS DECREASE...VISIBILITY WILL
  LIKEWISE SLOWLY IMPROVE. BLOWING AND DRIFTING SNOW WILL CONTINUE
  TO CREATE TREACHEROUS TRAVEL CONDITIONS.

* WIND AND VISIBILITY...NORTHWEST WINDS OF 20 TO 35 MPH...WITH GUSTS
  UP TO 40 MPH WILL PRODUCE AREAS OF BLOWING SNOW...REDUCING
  VISIBILITY TO A QUARTER MILE OR LESS AT TIMES.

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...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

&&

$$
062 
WWUS43 KFSD 210924
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
324 AM CST FRI FEB 21 2014

IAZ003-014-MNZ081-090-211030-
/O.CAN.KFSD.BZ.W.0006.000000T0000Z-140221T1000Z/
DICKINSON-CLAY-COTTONWOOD-JACKSON-
INCLUDING THE CITIES OF...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
SPENCER...WINDOM...MOUNTAIN LAKE...JACKSON...LAKEFIELD
324 AM CST FRI FEB 21 2014

...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
BLIZZARD WARNING. 

VISIBILITY HAS IMPROVED ACROSS MUCH OF SOUTHWEST MINNESOTA AND
NORTHWEST IOWA AS WINDS HAVE DECREASED...AND SNOW SHOWERS HAVE
DIMINISHED ACROSS THE REGION.

ROADS REMAIN AT LEAST PARTIALLY SNOW COVERED AND SLIPPERY DUE TO
DRIFTING SNOW. THEREFORE TRAVEL WILL STILL BE DIFFICULT ACROSS THE
REGION...AND MOTORISTS MAY WANT TO CONSIDER POSTPONING TRAVEL PLANS
UNTIL ROAD CONDITIONS IMPROVE.

$$

Nearby

Blizzard Warnings in Minnesota, 2014Blizzard Warnings in Iowa, 2014Every blizzard warning in 2014

Sources

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