Alert archive / Iowa / Winter Storm Warnings in 2012

Winter Storm Warning 3, NWS Des Moines, IA

February 22, 201226 counties in Iowa

NWS Des Moines, IA issued this winter storm warning at Feb 22, 2012, 10:13 PM CST for 26 counties in Iowa. It took effect at Feb 23, 2012, 3:00 AM CST. It was in force for 21 hr. 49 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 22, 2012, 10:13 PM CST (04:13 UTC)
In effect from
Feb 23, 2012, 3:00 AM CST
Expired
Feb 23, 2012, 11:59 PM CST
In force
21 hr
Issued by
NWS Des Moines, IA
All 26 counties

Black Hawk County, IA, Boone County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Crawford County, IA, Dallas County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Jasper County, IA, Kossuth County, IA, Marshall County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Poweshiek County, IA, Sac County, IA, Story County, IA, Tama County, IA, Webster County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 68 km from the middle of the area, began a volume at 04:16 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 23, 4:26 PM CSTSNOW 3.5Rockwell City, IATHREE TO FOUR INCHES IN TOWN AND STILL SNOWING HEAVILY.
Feb 23, 5:42 PM CSTSNOW 4.5Sac City, IA
Feb 23, 5:45 PM CSTSNOW 4Rockwell City, IAESTIMATED 3-4 INCHES
Feb 23, 5:47 PM CSTSNOW 5.8Early, IA5.5 TO 6 INCHES IN EARLY. SNOW NOT FALLING AS HARD NOW.
Feb 23, 5:49 PM CSTSNOW 4Pocahontas, IASNOW HAS WEAKENED CONSIDERABLY
Feb 23, 6:00 PM CSTSNOW 1.6Waterloo, IA
Feb 23, 7:35 PM CSTSNOW 3.5Denison, IA
Feb 23, 7:40 PM CSTSLEET 1.5Jefferson, IA
Feb 23, 7:44 PM CSTSNOW 2Grundy Center, IA1.5 TO 2 INCHES.
Feb 23, 7:45 PM CSTSNOW 1.7Boone, IA
Feb 23, 7:45 PM CSTSNOW 2Eldora, IA1.5 TO 2 INCHES
Feb 23, 7:46 PM CSTSNOW 1Webster City, IA
Feb 23, 7:46 PM CSTSNOW 1.5Fort Dodge, IA1 TO 2 INCHES IN FORT DODGE.
Feb 23, 7:46 PM CSTSNOW 2.5Jewell, IA2 TO 3 INCHES IN JEWELL
Feb 23, 7:50 PM CSTSNOW 1.78 Wsw Ames, IA
Feb 23, 8:05 PM CSTSNOW 0.5Johnston, IAAT NWS OFFICE
Feb 23, 8:10 PM CSTSNOW 4.5Denison, IA
Feb 23, 8:15 PM CSTSNOW 0.5Marshalltown, IA
Feb 23, 8:20 PM CSTSNOW 1.5Ames, IA
Feb 23, 8:20 PM CSTSNOW 1.8Waterloo, IAAT KWWL STUDIOS.
Feb 23, 8:30 PM CSTSNOW 4Carroll, IA
Feb 23, 9:10 PM CSTSNOW 1Johnston, IAAT NWS OFFICE
Feb 23, 9:10 PM CSTSNOW 2.42 Ese Adel, IA
Feb 23, 9:16 PM CSTSNOW 1Ankeny, IA
Feb 23, 9:19 PM CSTSNOW 1West Des Moines, IAAT WOI TV STUDIOS
Feb 23, 9:20 PM CSTSNOW 2.6Waterloo, IAAT KWWL TV STUDIOS
Feb 23, 9:26 PM CSTSNOW 4.6Denison, IA
Feb 23, 9:30 PM CSTSNOW 3.5Boone, IA
Feb 23, 9:37 PM CSTSNOW 3.5Pocahontas, IASTILL SNOWING LIGHTLY.
Feb 23, 9:38 PM CSTSNOW 3.5Cedar Falls, IA
Feb 23, 9:40 PM CSTSNOW 2.52 Ne Grimes, IANW JOHNSTON
Feb 23, 9:44 PM CSTSNOW 1.3Des Moines, IAAT KCCI TV STUDIOS
Feb 23, 9:44 PM CSTSNOW 2Urbandale, IA
Feb 23, 9:52 PM CSTSNOW 1.3Johnston, IAAT NWS OFFICE
Feb 23, 10:00 PM CSTSNOW 1.8Clive, IA
Feb 23, 10:30 PM CSTSNOW 2.1Johnston, IA
Feb 23, 10:33 PM CSTSNOW 1.7Des Moines, IAAT KCCI TV STUDIOS
Feb 23, 10:40 PM CSTSNOW 2.23 S Polk City, IAAT NWS OFFICE.
Feb 23, 10:45 PM CSTSNOW 22 Sw Grimes, IA
Feb 23, 10:45 PM CSTSNOW 2.22 Sw Grimes, IA
Feb 23, 11:15 PM CSTSNOW 3.41 N Grimes, IA
Feb 23, 11:20 PM CSTSNOW 3.5Iowa Falls, IA
Feb 23, 11:20 PM CSTSNOW 4Stanhope, IA
Feb 23, 11:39 PM CSTSNOW 3.7Urbandale, IAVIA NWS DES MOINES FACEBOOK PAGE
Feb 23, 11:39 PM CSTSNOW 44 Nnw Ankeny Airport, IA
Feb 23, 11:42 PM CSTSNOW 3.63 S Polk City, IANWS OFFICE IN NORTH OF JOHNSTON
Feb 23, 11:58 PM CSTSNOW 3.7Des Moines Int Airport, IAOFFICIAL DES MOINES SNOWFALL
Feb 24, 12:05 AM CSTSNOW 2.5Waterloo, IAOFFICIAL WATERLOO SNOWFALL
Feb 24, 12:06 AM CSTSNOW 3Ames, IA

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

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 4.2 hours before the alert went out and 244 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, Omaha, NE at 00:00Z on 2012-02-23Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 2012-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
1367 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
102 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.

312 
WWUS43 KDMX 230413
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1013 PM CST WED FEB 22 2012

...POTENTIAL FOR SIGNIFICANT SNOWFALL ACROSS MUCH OF CENTRAL AND
NORTH CENTRAL IOWA...

.LOW PRESSURE WILL MOVE FROM THE SOUTH DAKOTA TONIGHT AND TRACK
SOUTHEASTWARD ACROSS CENTRAL IOWA THURSDAY. PRECIPITATION WILL
DEVELOP ACROSS NORTHWESTERN IOWA LATE TONIGHT...AND SPREAD
SOUTHEASTWARD ACROSS NORTH CENTRAL IOWA INTO CENTRAL IOWA
THURSDAY. MODERATE TO HEAVY SNOWFALL ACCUMULATIONS ARE EXPECTED
MAINLY NORTH OF INTERSTATE 80.

IAZ005-015-023-024-035-231200-
/O.UPG.KDMX.WS.A.0002.120223T0900Z-120224T0000Z/
/O.NEW.KDMX.WS.W.0003.120223T0900Z-120224T0300Z/
KOSSUTH-PALO ALTO-POCAHONTAS-HUMBOLDT-WEBSTER-
INCLUDING THE CITIES OF...ALGONA...EMMETSBURG...POCAHONTAS...
HUMBOLDT...FORT DODGE
1013 PM CST WED FEB 22 2012

...WINTER STORM WARNING IN EFFECT FROM 3 AM TO 9 PM CST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 3 AM TO
9 PM CST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* TIMING...SNOW WILL SPREAD INTO NORTHWESTERN AND NORTH CENTRAL
  IOWA THROUGHOUT THE EARLY MORNING HOURS...AND CONTINUE THROUGH
  THE DAY THURSDAY. HEAVY SNOWFALL WITH RATES OF POSSIBLY 1 TO 2
  INCHES PER HOUR WILL BE POSSIBLE AT TIMES THURSDAY MORNING INTO
  THE EARLY AFTERNOON HOURS. THE SNOW IS THEN EXPECTED TO
  GRADUALLY END FROM NORTHWEST TO SOUTHEAST THURSDAY EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 6 TO 10 INCHES...WITH
  HIGHER AMOUNTS POSSIBLE IN AREAS OF BANDED SNOW. 

* WINDS/VISIBILITY...VISIBILITIES OF ONE QUARTER MILE OR LESS ARE
  EXPECTED DURING PERIODS OF HEAVIER SNOW. IN ADDITION...NORTHWEST
  WINDS WILL INCREASE DURING THE DAY THURSDAY WITH SPEEDS OF 15 TO
  25 MPH WITH HIGHER GUSTS CREATING BLOWING AND DRIFTING SNOW.

* IMPACTS...CONDITIONS WILL QUICKLY DETERIORATE AROUND DAYBREAK
  THURSDAY MORNING...WITH TRAVEL EXPECTED TO BECOME QUITE
  DIFFICULT AS CONDITIONS WORSEN.

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.

&&

$$

IAZ016-025>027-036>039-050-231200-
/O.UPG.KDMX.WS.A.0002.120223T0900Z-120224T0000Z/
/O.NEW.KDMX.WS.W.0003.120223T1200Z-120224T0600Z/
HANCOCK-WRIGHT-FRANKLIN-BUTLER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-
TAMA-
INCLUDING THE CITIES OF...GARNER...CLARION...HAMPTON...ALLISON...
WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...TOLEDO
1013 PM CST WED FEB 22 2012

...WINTER STORM WARNING IN EFFECT FROM 6 AM THURSDAY TO MIDNIGHT
CST THURSDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 AM
THURSDAY TO MIDNIGHT CST THURSDAY NIGHT. THE WINTER STORM WATCH IS
NO LONGER IN EFFECT.

* TIMING...SNOW WILL MOVE INTO THE AREA DURING THE MORNING HOURS
  THURSDAY...AND CONTINUE INTO THE EVENING HOURS. PERIODS OF
  MODERATE TO HEAVY SNOWFALL ARE EXPECTED BY LATE THURSDAY MORNING
  THROUGH THE AFTERNOON HOURS. THE SNOW WILL GRADUALLY END FROM
  NORTHWEST TO SOUTHEAST LATE THURSDAY EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 6 TO 10 INCHES...WITH
  HIGHER AMOUNTS POSSIBLE IN AREAS OF BANDED SNOW. 

* WINDS/VISIBILITY...VISIBILITIES OF ONE QUARTER MILE OR LESS ARE
  EXPECTED DURING PERIODS OF HEAVIER SNOW. IN ADDITION...NORTHWEST
  WINDS WILL INCREASE BY LATE THURSDAY AFTERNOON WITH SPEEDS OF 15
  TO 25 MPH WITH HIGHER GUSTS CREATING AREAS OF BLOWING AND
  DRIFTING SNOW.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY LATE MORNING
  THURSDAY INTO THE EARLY AFTERNOON HOURS. TRAVEL WILL BECOME
  QUITE DIFFICULT AS CONDITIONS WORSEN.

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.

&&

$$

IAZ033-034-044>046-231200-
/O.NEW.KDMX.WS.W.0003.120223T0900Z-120224T0300Z/
SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-
INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...DENISON...
CARROLL...JEFFERSON
1013 PM CST WED FEB 22 2012

...WINTER STORM WARNING IN EFFECT FROM 3 AM TO 9 PM CST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT
FROM 3 AM TO 9 PM CST THURSDAY. 

* TIMING...SNOW WILL SPREAD INTO WEST CENTRAL IOWA THROUGHOUT THE
  MORNING HOURS...AND CONTINUE THROUGH THE DAY THURSDAY. HEAVY
  SNOWFALL WITH RATES OF POSSIBLY 1 TO 2 INCHES PER HOUR WILL BE
  POSSIBLE AT TIMES THURSDAY MORNING INTO THE EARLY AFTERNOON
  HOURS. THE SNOW IS THEN EXPECTED TO GRADUALLY END FROM NORTHWEST
  TO SOUTHEAST THURSDAY EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 6 TO 10 INCHES...WITH
  HIGHER AMOUNTS POSSIBLE IN AREAS OF BANDED SNOW. 

* WINDS/VISIBILITY...VISIBILITIES OF ONE QUARTER MILE OR LESS ARE
  EXPECTED DURING PERIODS OF HEAVIER SNOW. IN ADDITION...NORTHWEST
  WINDS WILL INCREASE DURING THE DAY THURSDAY WITH SPEEDS OF 15 TO
  25 MPH WITH HIGHER GUSTS CREATING BLOWING AND DRIFTING SNOW.

* IMPACTS...CONDITIONS WILL QUICKLY DETERIORATE AROUND DAYBREAK
  THURSDAY MORNING...WITH TRAVEL EXPECTED TO BECOME QUITE
  DIFFICULT AS CONDITIONS WORSEN.

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.

&&

$$

IAZ047>049-059>062-231200-
/O.NEW.KDMX.WS.W.0003.120223T1200Z-120224T0600Z/
BOONE-STORY-MARSHALL-DALLAS-POLK-JASPER-POWESHIEK-
INCLUDING THE CITIES OF...BOONE...AMES...MARSHALLTOWN...ADEL...
DES MOINES...NEWTON...GRINNELL
1013 PM CST WED FEB 22 2012

...WINTER STORM WARNING IN EFFECT FROM 6 AM THURSDAY TO MIDNIGHT
CST THURSDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT
FROM 6 AM THURSDAY TO MIDNIGHT CST THURSDAY NIGHT. 


* TIMING...RAIN AND SNOW WILL MOVE INTO THE AREA DURING THE
  MORNING HOURS THURSDAY...WITH A TRANSITION TO ALL SNOW IS
  EXPECTED BY LATE THURSDAY MORNING INTO THE EARLY AFTERNOON
  HOURS. PERIODS OF MODERATE TO HEAVY SNOWFALL ARE EXPECTED
  THURSDAY AFTERNOON INTO THE EARLY EVENING HOURS. THE SNOW WILL
  GRADUALLY END FROM NORTHWEST TO SOUTHEAST LATE THURSDAY EVENING. 

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 6 TO 10 INCHES...WITH
  HIGHER AMOUNTS POSSIBLE IN AREAS OF BANDED SNOW. 

* WINDS/VISIBILITY...VISIBILITIES OF ONE QUARTER MILE OR LESS ARE
  EXPECTED DURING PERIODS OF HEAVIER SNOW. IN ADDITION...NORTHWEST
  WINDS WILL INCREASE BY LATE THURSDAY AFTERNOON WITH SPEEDS OF 15
  TO 25 MPH WITH HIGHER GUSTS CREATING AREAS OF BLOWING AND
  DRIFTING SNOW.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY LATE MORNING
  THURSDAY INTO THE EARLY AFTERNOON HOURS. TRAVEL WILL BECOME
  QUITE DIFFICULT AS CONDITIONS WORSEN.

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.

&&

$$

IAZ004-231200-
/O.UPG.KDMX.WS.A.0002.120223T0900Z-120224T0000Z/
/O.NEW.KDMX.WW.Y.0005.120223T0900Z-120224T0300Z/
EMMET-
INCLUDING THE CITY OF...ESTHERVILLE
1013 PM CST WED FEB 22 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 9 PM CST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 3 AM TO 9 PM
CST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* TIMING...SNOW WILL SPREAD INTO NORTHWEST IOWA LATE TONIGHT AND
  CONTINUE THROUGH THE DAY THURSDAY. THE SNOW WILL TAPER OFF BY
  EARLY EVENING. 

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 3 TO 5 INCHES.

* WINDS/VISIBILITY...VISIBILITIES OF ONE HALF MILE OR LESS ARE
  EXPECTED DURING PERIODS OF MODERATE TO HEAVY SNOW. IN
  ADDITION...NORTHWEST WINDS WILL INCREASE BY LATE THURSDAY
  AFTERNOON WITH SPEEDS OF 15 TO 25 MPH WITH HIGHER GUSTS CREATING
  AREAS OF BLOWING AND DRIFTING SNOW.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE THROUGHOUT THE
  MORNING INTO THE EARLY AFTERNOON HOURS. TRAVEL WILL BECOME QUITE
  DIFFICULT AS CONDITIONS WORSEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY
FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL
DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED
VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ006-007-017-231200-
/O.UPG.KDMX.WS.A.0002.120223T0900Z-120224T0000Z/
/O.NEW.KDMX.WW.Y.0005.120223T1200Z-120224T0300Z/
WINNEBAGO-WORTH-CERRO GORDO-
INCLUDING THE CITIES OF...FOREST CITY...NORTHWOOD...MASON CITY
1013 PM CST WED FEB 22 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 9 PM CST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT
FROM 6 AM TO 9 PM CST THURSDAY. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT. 

* TIMING...SNOW WILL SPREAD INTO NORTH CENTRAL IOWA THROUGHOUT THE
  MORNING HOURS AND CONTINUE THROUGH THE DAY THURSDAY. THE SNOW
  WILL TAPER OFF BY EARLY EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 3 TO 5 INCHES.

* WINDS/VISIBILITY...VISIBILITIES OF ONE HALF MILE OR LESS ARE
  EXPECTED DURING PERIODS OF MODERATE TO HEAVY SNOW. IN
  ADDITION...NORTHWEST WINDS WILL INCREASE BY LATE THURSDAY
  AFTERNOON WITH SPEEDS OF 15 TO 25 MPH WITH HIGHER GUSTS CREATING
  AREAS OF BLOWING AND DRIFTING SNOW.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE THROUGHOUT THE
  MORNING INTO THE EARLY AFTERNOON HOURS. TRAVEL WILL BECOME QUITE
  DIFFICULT AS CONDITIONS WORSEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ028-231200-
/O.UPG.KDMX.WS.A.0002.120223T0900Z-120224T0000Z/
/O.NEW.KDMX.WW.Y.0005.120223T1200Z-120224T0600Z/
BREMER-
INCLUDING THE CITY OF...WAVERLY
1013 PM CST WED FEB 22 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THURSDAY TO
MIDNIGHT CST THURSDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 AM THURSDAY TO
MIDNIGHT CST THURSDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING...A MIX OF RAIN AND SNOW WILL TRANSITION TO ALL SNOW BY
  LATE THURSDAY MORNING AND CONTINUE THROUGH THE DAY THURSDAY. THE
  SNOW WILL TAPER OFF BY LATE EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 3 TO 5 INCHES.

* WINDS/VISIBILITY...VISIBILITIES OF ONE HALF MILE OR LESS ARE
  EXPECTED DURING PERIODS OF MODERATE TO HEAVY SNOW. IN
  ADDITION...NORTHWEST WINDS WILL INCREASE BY LATE THURSDAY
  AFTERNOON WITH SPEEDS OF 15 TO 25 MPH WITH HIGHER GUSTS CREATING
  AREAS OF BLOWING AND DRIFTING SNOW.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE THROUGHOUT THE
  MORNING INTO THE EARLY AFTERNOON HOURS. TRAVEL WILL BECOME QUITE
  DIFFICULT AS CONDITIONS WORSEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ057-058-071>075-231200-
/O.NEW.KDMX.WW.Y.0005.120223T1200Z-120224T0600Z/
AUDUBON-GUTHRIE-ADAIR-MADISON-WARREN-MARION-MAHASKA-
INCLUDING THE CITIES OF...AUDUBON...GUTHRIE CENTER...GREENFIELD...
WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA
1013 PM CST WED FEB 22 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THURSDAY TO
MIDNIGHT CST THURSDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 AM THURSDAY
TO MIDNIGHT CST THURSDAY NIGHT.

* TIMING...A MIX OF RAIN AND SNOW WILL TRANSITION TO ALL SNOW BY
  LATE THURSDAY MORNING INTO EARLY THURSDAY AFTERNOON AND CONTINUE
  INTO THE EVENING HOURS. THE SNOW WILL TAPER OFF BY LATE EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 3 TO 5 INCHES.

* WINDS/VISIBILITY...VISIBILITIES OF ONE HALF MILE OR LESS ARE
  EXPECTED DURING PERIODS OF MODERATE TO HEAVY SNOW. IN
  ADDITION...NORTHWEST WINDS WILL INCREASE BY LATE THURSDAY
  AFTERNOON WITH SPEEDS OF 15 TO 25 MPH WITH HIGHER GUSTS CREATING
  AREAS OF BLOWING AND DRIFTING SNOW.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE THROUGHOUT THE
  MORNING INTO THE EARLY AFTERNOON HOURS. TRAVEL WILL BECOME QUITE
  DIFFICULT AS CONDITIONS WORSEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

BEERENDS
8 follow-up statements
887 
WWUS43 KDMX 231021
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
421 AM CST THU FEB 23 2012

...SIGNIFICANT SNOWFALL POTENTIAL OVER CENTRAL TO NORTHWEST IOWA
TODAY...

.A STRONG AREA OF LOW PRESSURE WILL TRACK ACROSS KANSAS AND
CENTRAL MISSOURI THROUGHOUT THE DAY AND PLACE CENTRAL TO NORTHWEST
IOWA WITHIN A BAND OF HEAVY SNOW. A RAIN AND SNOW MIX LOOKS TO
DEVELOP THROUGHOUT THE LATE MORNING HOURS AND THEN SLOWLY
TRANSITION TO ALL SNOW INTO THE AFTERNOON BEFORE DIMINISHING THIS
EVENING.

IAZ059>062-231830-
/O.CAN.KDMX.WS.W.0003.120223T1200Z-120224T0600Z/
/O.EXB.KDMX.WW.Y.0005.120223T1500Z-120224T0600Z/
DALLAS-POLK-JASPER-POWESHIEK-
INCLUDING THE CITIES OF...ADEL...DES MOINES...NEWTON...GRINNELL
421 AM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO
MIDNIGHT CST TONIGHT...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR LIGHT TO MODERATE SNOW...WHICH IS IN EFFECT
FROM 9 AM THIS MORNING TO MIDNIGHT CST TONIGHT. THE WINTER STORM
WARNING HAS BEEN CANCELLED.

* TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP THROUGHOUT THE
  MORNING AND INTO THE EARLY AFTERNOON HOURS BEFORE TRANSITIONING
  TO ALL SNOW BY LATE THIS AFTERNOON. THE SNOW WILL TAPER OFF BY
  LATE THIS EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...GUSTY NORTHWEST WINDS OF 15 TO 30 MPH WILL
  DEVELOP LATE THIS AFTERNOON AND LEAD TO VISIBILITIES OF LESS
  THAN ONE HALF MILE AT TIMES INTO THE EVENING HOURS...ESPECIALLY
  DURING RUSH HOUR.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY THE MID TO LATE
  AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS
AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING. &&

$$

IAZ016-025>027-036>039-047>050-231830-
/O.EXT.KDMX.WS.W.0003.120223T1500Z-120224T0600Z/
HANCOCK-WRIGHT-FRANKLIN-BUTLER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-
BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...GARNER...CLARION...HAMPTON...ALLISON...
WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES...
MARSHALLTOWN...TOLEDO
421 AM CST THU FEB 23 2012

...WINTER STORM WARNING NOW IN EFFECT FROM 9 AM THIS MORNING TO
MIDNIGHT CST TONIGHT...

* TIMING...SNOW...POSSIBLY MIXED WITH RAIN AT TIMES...WILL DEVELOP
  OVER THE WARNED AREA LATE THIS MORNING AND THEN QUICKLY
  TRANSITION TO ALL SNOW BY AROUND MIDDAY. PERIODS OF MODERATE TO
  LOCALLY HEAVY SNOWFALL CAN BE EXPECTED DURING THE AFTERNOON AND
  INTO THE EARLY EVENING HOURS.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 8 INCHES...WITH
  HIGHER AMOUNTS POSSIBLE.

* WINDS/VISIBILITY...VISIBILITIES OF ONE QUARTER MILE OR LESS CAN
  BE EXPECTED DURING PERIODS OF HEAVIER SNOW AS NORTHWEST WINDS
  WILL INCREASE BY LATE THIS AFTERNOON TO 15 TO 30 MPH. 

* IMPACTS...WITH THE GUSTY NORTHWEST WINDS DEVELOPING LATE THIS
  AFTERNOON...AREAS OF BLOWING AND DRIFTING SNOW CAN BE EXPECTED
  BY THE EVENING HOURS. TRAVEL WILL BECOME QUITE DIFFICULT AS
  CONDITIONS WORSEN.

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.

&&

$$

IAZ005-015-023-024-033>035-044>046-231830-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0300Z/
KOSSUTH-PALO ALTO-POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-
CRAWFORD-CARROLL-GREENE-
INCLUDING THE CITIES OF...ALGONA...EMMETSBURG...POCAHONTAS...
HUMBOLDT...SAC CITY...ROCKWELL CITY...FORT DODGE...DENISON...
CARROLL...JEFFERSON
421 AM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...SNOW WILL SPREAD OVER WEST CENTRAL TO NORTHWEST IOWA
  THROUGH THE LATE MORNING HOURS AND PERSIST THROUGH THE EARLY
  EVENING TONIGHT. HEAVY SNOWFALL WITH RATES OF 1 TO 2 INCHES PER
  HOUR ARE POSSIBLY LATE THIS MORNING...BUT ESPECIALLY BY THIS
  AFTERNOON. THE HEAVIEST SNOWFALL WILL BEGIN TO TAPER OFF BY
  EARLY THIS EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 10 INCHES...WITH
  LOCALLY HIGHER AMOUNTS POSSIBLE.

* WINDS/VISIBILITY...VISIBILITIES OF ONE QUARTER MILE OR LESS AS
  NORTHWEST WINDS OF 15 TO 30 MPH CAN BE ARE EXPECTED THROUGH THE
  AFTERNOON AND EVENING. 

* IMPACTS...CONDITIONS WILL QUICKLY DETERIORATE BY MID TO LATE
  THIS MORNING AND WORSEN THROUGH THE AFTERNOON. SOME AREAS OF
  BLOWING AND DRIFTING OF SNOW IS EXPECTED BY THE EARLY EVENING.

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.

&&

$$

IAZ006-007-017-057-058-071-231830-
/O.EXT.KDMX.WW.Y.0005.120223T1500Z-120224T0300Z/
WINNEBAGO-WORTH-CERRO GORDO-AUDUBON-GUTHRIE-ADAIR-
INCLUDING THE CITIES OF...FOREST CITY...NORTHWOOD...MASON CITY...
AUDUBON...GUTHRIE CENTER...GREENFIELD
421 AM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING
TO 9 PM CST THIS EVENING...

* TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP THROUGHOUT THE
  MORNING AND INTO THE EARLY AFTERNOON HOURS BEFORE TRANSITIONING
  TO ALL SNOW BY LATE THIS AFTERNOON. THE SNOW WILL TAPER OFF BY
  LATE THIS EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...GUSTY NORTHWEST WINDS OF 15 TO 30 MPH WILL
  DEVELOP LATE THIS AFTERNOON AND LEAD TO VISIBILITIES OF LESS
  THAN ONE HALF MILE AT TIMES INTO THE EVENING HOURS...ESPECIALLY
  DURING RUSH HOUR.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY THE MID TO LATE
  AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ028-072>075-231830-
/O.EXT.KDMX.WW.Y.0005.120223T1500Z-120224T0600Z/
BREMER-MADISON-WARREN-MARION-MAHASKA-
INCLUDING THE CITIES OF...WAVERLY...WINTERSET...INDIANOLA...
KNOXVILLE...OSKALOOSA
421 AM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING
TO MIDNIGHT CST TONIGHT...

* TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP THROUGHOUT THE
  MORNING AND INTO THE EARLY AFTERNOON HOURS BEFORE TRANSITIONING
  TO ALL SNOW BY LATE THIS AFTERNOON. THE SNOW WILL TAPER OFF BY
  LATE THIS EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...GUSTY NORTHWEST WINDS OF 15 TO 30 MPH WILL
  DEVELOP LATE THIS AFTERNOON AND LEAD TO VISIBILITIES OF LESS
  THAN ONE HALF MILE AT TIMES INTO THE EVENING HOURS...ESPECIALLY
  DURING RUSH HOUR.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY THE MID TO LATE
  AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ004-231830-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0300Z/
EMMET-
INCLUDING THE CITY OF...ESTHERVILLE
421 AM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP THROUGHOUT THE
  MORNING AND INTO THE EARLY AFTERNOON HOURS BEFORE TRANSITIONING
  TO ALL SNOW BY LATE THIS AFTERNOON. THE SNOW WILL TAPER OFF BY
  LATE THIS EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...GUSTY NORTHWEST WINDS OF 15 TO 30 MPH WILL
  DEVELOP LATE THIS AFTERNOON AND LEAD TO VISIBILITIES OF LESS
  THAN ONE HALF MILE AT TIMES INTO THE EVENING HOURS...ESPECIALLY
  DURING RUSH HOUR.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY THE MID TO LATE
  AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY
FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL
DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED
VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

PODRAZIK
185 
WWUS43 KDMX 231325
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
725 AM CST THU FEB 23 2012

...HEAVY SNOW EXPECTED OVER PORTIONS CENTRAL TO NORTHWEST IOWA
TODAY...

.A STRONG AREA OF LOW PRESSURE LOCATED OVER NORTHEAST KANSAS AND
SOUTHEAST NEBRASKA WILL CONTINUE TO TRACK EASTWARD ACROSS NORTHERN
MISSOURI THROUGHOUT THE DAY TODAY. RAIN WILL TRANSITION TO ALL SNOW
FROM NORTH TO SOUTH THROUGH THE REMAINDER OF THE MORNING INTO THE
AFTERNOON HOURS. THE HEAVIEST SNOWFALL WILL BE ACROSS NORTH
CENTRAL TO NORTHWEST PORTIONS OF IOWA. STRONG NORTH TO NORTHEAST
WINDS WILL DEVELOP BY THIS AFTERNOON AND LEAD TO BLOWING SNOW AND
REDUCED VISIBILITY AT TIMES INTO THIS EVENING.

IAZ005-015-023-024-033>035-044>046-232130-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0300Z/
KOSSUTH-PALO ALTO-POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-
CRAWFORD-CARROLL-GREENE-
INCLUDING THE CITIES OF...ALGONA...EMMETSBURG...POCAHONTAS...
HUMBOLDT...SAC CITY...ROCKWELL CITY...FORT DODGE...DENISON...
CARROLL...JEFFERSON
725 AM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...RAIN WILL QUICKLY TRANSITION TO SNOW THROUGH THE MID
  MORNING HOURS. THE HEAVIEST SNOWFALL IS ANTICIPATED TO OCCUR
  LATE THIS MORNING THROUGH THE MID AFTERNOON HOURS...WHERE
  SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR CAN BE EXPECTED. THE
  HEAVIEST SNOW IS FORECAST TO BEGIN TO TAPER OFF BY EARLY THIS
  EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 10 INCHES...WITH
  LOCALLY HIGHER AMOUNTS POSSIBLE.

* WINDS/VISIBILITY...WINDS ARE EXPECTED TO SHIFT FROM EAST THIS
  MORNING TO NORTH NORTHEAST BY THE AFTERNOON AND INCREASE TO 15
  TO 30 MPH. THESE GUSTY WINDS ARE LIKELY TO CAUSE VISIBILITY
  RESTRICTIONS OF ONE QUARTER MILE OR LESS DURING THE HEAVIEST
  SNOWFALL THIS AFTERNOON.

* IMPACTS...CONDITIONS WILL QUICKLY DETERIORATE BY MID TO LATE 
  THIS MORNING AND WORSEN THROUGH THE AFTERNOON. SOME AREAS OF 
  BLOWING AND DRIFTING OF SNOW IS EXPECTED BY THE EARLY EVENING. 

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.

&&

$$

IAZ016-025>027-036>039-047>050-232130-
/O.CON.KDMX.WS.W.0003.120223T1500Z-120224T0600Z/
HANCOCK-WRIGHT-FRANKLIN-BUTLER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-
BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...GARNER...CLARION...HAMPTON...ALLISON...
WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES...
MARSHALLTOWN...TOLEDO
725 AM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* TIMING...RAIN WILL QUICKLY TRANSITION TO SNOW BY THE LATE
  MORNING HOURS. THE HEAVIEST SNOWFALL IS ANTICIPATED TO OCCUR
  FROM AROUND MIDDAY INTO THE EARLY EVENING HOURS...WHERE SNOWFALL
  RATES OF 1 TO 2 INCHES PER HOUR CAN BE EXPECTED. THE HEAVIEST
  SNOW IS FORECAST TO BEGIN TO TAPER OFF BY MID EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 8 INCHES...WITH
  LOCALLY HIGHER AMOUNTS POSSIBLE.

* WINDS/VISIBILITY...WINDS ARE EXPECTED TO SHIFT FROM EAST THIS
  MORNING TO NORTH NORTHEAST BY THE AFTERNOON AND INCREASE TO 15
  TO 30 MPH. THESE GUSTY WINDS ARE LIKELY TO CAUSE VISIBILITY
  RESTRICTIONS OF ONE QUARTER MILE OR LESS DURING THE HEAVIEST
  SNOWFALL THIS AFTERNOON.

* IMPACTS...WITH THE GUSTY NORTHWEST WINDS DEVELOPING LATE THIS 
  AFTERNOON...AREAS OF BLOWING AND DRIFTING SNOW CAN BE EXPECTED 
  BY THE EVENING HOURS. TRAVEL WILL BECOME QUITE DIFFICULT AS 
  CONDITIONS WORSEN. 

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.

&&

$$

IAZ004-232130-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0300Z/
EMMET-
INCLUDING THE CITY OF...ESTHERVILLE
725 AM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP THROUGHOUT THE
  MORNING BEFORE TRANSITIONING TO ALL SNOW BY AROUND MIDDAY. THE
  SNOW WILL TAPER OFF BY EARLY THIS EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...WINDS ARE EXPECTED TO SHIFT FROM EAST THIS
  MORNING TO NORTH NORTHEAST BY THE AFTERNOON AND INCREASE TO 15
  TO 30 MPH. THESE GUSTY WINDS ARE LIKELY TO CAUSE VISIBILITY
  RESTRICTIONS OF LESS THAN A MILE DURING THE HEAVIEST SNOWFALL
  THIS AFTERNOON.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE LATE THIS MORNING
  INTO THE AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY
FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL
DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED
VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ006-007-017-057-058-071-232130-
/O.CON.KDMX.WW.Y.0005.120223T1500Z-120224T0300Z/
WINNEBAGO-WORTH-CERRO GORDO-AUDUBON-GUTHRIE-ADAIR-
INCLUDING THE CITIES OF...FOREST CITY...NORTHWOOD...MASON CITY...
AUDUBON...GUTHRIE CENTER...GREENFIELD
725 AM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP THROUGHOUT THE
  MORNING HOURS BEFORE TRANSITIONING TO ALL SNOW BY THE AFTERNOON.
  THE SNOW WILL TAPER OFF BY LATE THIS EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...WINDS ARE EXPECTED TO SHIFT FROM EAST THIS
  MORNING TO NORTH NORTHEAST BY THE AFTERNOON AND INCREASE TO 15
  TO 30 MPH. THESE GUSTY WINDS ARE LIKELY TO CAUSE VISIBILITY
  RESTRICTIONS OF LESS THAN A MILE DURING THE HEAVIEST SNOWFALL
  THIS AFTERNOON.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY THE MID TO 
  LATE AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ028-059>062-072>075-232130-
/O.CON.KDMX.WW.Y.0005.120223T1500Z-120224T0600Z/
BREMER-DALLAS-POLK-JASPER-POWESHIEK-MADISON-WARREN-MARION-MAHASKA-
INCLUDING THE CITIES OF...WAVERLY...ADEL...DES MOINES...NEWTON...
GRINNELL...WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA
725 AM CST THU FEB 23 2012

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

* TIMING...RAIN WILL CONTINUE THROUGH MUCH OF THE MORNING BEFORE
  TRANSITIONING OVER TO SNOW DURING THE AFTERNOON HOURS. THE SNOW
  WILL TAPER OFF BY LATE THIS EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...WINDS ARE EXPECTED TO SHIFT FROM EAST THIS
  MORNING TO NORTH NORTHEAST BY THE AFTERNOON AND INCREASE TO 15
  TO 30 MPH. THESE GUSTY WINDS ARE LIKELY TO CAUSE VISIBILITY
  RESTRICTIONS OF LESS THAN A MILE DURING THE HEAVIEST SNOWFALL
  THIS AFTERNOON.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY THE MID TO LATE
  AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


PODRAZIK
571 
WWUS43 KDMX 231602
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1002 AM CST THU FEB 23 2012

...HEAVY SNOW EXPECTED OVER PORTIONS CENTRAL TO NORTHWEST IOWA
THIS AFTERNOON AND EVENING...

.A STRONG AREA OF LOW PRESSURE LOCATED ALONG THE KANSAS AND
MISSOURI BORDER WILL CONTINUE TO TRACK EASTWARD ACROSS NORTHERN
MISSOURI THROUGHOUT THE DAY TODAY. LIGHT SNOW WILL BEGIN ACROSS
NORTHWEST IOWA LATER THIS MORNING...WITH RAIN TRANSITIONING TO
SNOW LATE TODAY ACROSS CENTRAL IOWA. THE HEAVIEST SNOWFALL WILL BE
ACROSS NORTHWEST INTO CENTRAL PORTIONS OF IOWA. VISIBILITIES MAY
BE REDUCED AT TIMES DURING THE HEAVIEST SNOW IN THE EVENING.

IAZ005-015-023-024-033>035-044>046-240015-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0300Z/
KOSSUTH-PALO ALTO-POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-
CRAWFORD-CARROLL-GREENE-
INCLUDING THE CITIES OF...ALGONA...EMMETSBURG...POCAHONTAS...
HUMBOLDT...SAC CITY...ROCKWELL CITY...FORT DODGE...DENISON...
CARROLL...JEFFERSON
1002 AM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...RAIN WILL TRANSITION TO SNOW FROM WEST TO EAST
  TODAY...WITH SNOW BEGINNING ACROSS NORTHWEST IOWA LATER THIS
  MORNING AND ACROSS CENTRAL IOWA THIS AFTERNOON. THE HEAVIEST
  SNOWFALL IS EXPECTED ACROSS PORTIONS OF NORTHWEST IOWA...WHERE
  SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR CAN BE EXPECTED. THE
  HEAVIEST SNOW WILL BEGIN TO TAPER OFF THIS EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 10 INCHES...WITH 
  LOCALLY HIGHER AMOUNTS POSSIBLE. 

* WINDS/VISIBILITY...WINDS ARE EXPECTED TO SHIFT FROM EAST THIS
  MORNING TO NORTH NORTHEAST BY THE AFTERNOON AND INCREASE TO 15
  TO 30 MPH. VISIBILITIES MAY BE REDUCED BELOW ONE HALF OF A MILE
  AT TIMES DURING PERIODS OF THE HEAVIEST SNOW.

* IMPACTS...CONDITIONS WILL DETERIORATE DURING THE AFTERNOON.
  ROADS WILL BECOME SLICK AND VERY HAZARDOUS TO TRAVEL IN THE AREAS
  OF HEAVIEST SNOWFALL.

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.

&&

$$

IAZ016-025>027-036>039-047>050-240015-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0600Z/
HANCOCK-WRIGHT-FRANKLIN-BUTLER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-
BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...GARNER...CLARION...HAMPTON...ALLISON...
WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES...
MARSHALLTOWN...TOLEDO
1002 AM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* TIMING...RAIN WILL TRANSITION TO SNOW FROM WEST TO EAST
  TODAY...WITH SNOW BEGINNING ACROSS CENTRAL AND EASTERN IOWA BY
  THIS AFTERNOON. THE HEAVIEST SNOWFALL IS EXPECTED ACROSS
  CENTRAL...WHERE SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR CAN BE
  EXPECTED. THE HEAVIEST SNOW IS FORECAST TO BEGIN TO TAPER OFF
  OVERNIGHT TONIGHT.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 8 INCHES...WITH 
  LOCALLY HIGHER AMOUNTS POSSIBLE. 

* WINDS/VISIBILITY...WINDS ARE EXPECTED TO SHIFT FROM EAST THIS
  MORNING TO NORTH NORTHEAST BY THE AFTERNOON AND INCREASE TO 15
  TO 30 MPH. VISIBILITIES MAY BE REDUCED BELOW ONE HALF OF A MILE
  AT TIMES DURING PERIODS OF THE HEAVIEST SNOW.

* IMPACTS...CONDITIONS WILL DETERIORATE DURING THE AFTERNOON.
  ROADS WILL BECOME SLICK AND VERY HAZARDOUS TO TRAVEL IN THE
  AREAS OF HEAVIEST SNOWFALL.

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.

&&

$$

IAZ004-006-007-017-057-058-071-240015-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0300Z/
EMMET-WINNEBAGO-WORTH-CERRO GORDO-AUDUBON-GUTHRIE-ADAIR-
INCLUDING THE CITIES OF...ESTHERVILLE...FOREST CITY...NORTHWOOD...
MASON CITY...AUDUBON...GUTHRIE CENTER...GREENFIELD
1002 AM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP THROUGHOUT THE 
  MORNING HOURS BEFORE TRANSITIONING TO ALL SNOW BY THE 
  AFTERNOON. THE SNOW WILL TAPER OFF BY LATE THIS EVENING. 

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...WINDS ARE EXPECTED TO SHIFT FROM EAST THIS
  MORNING TO NORTH NORTHEAST BY THE AFTERNOON AND INCREASE TO 15
  TO 30 MPH. VISIBILITIES MAY BE REDUCED BELOW ONE MILE AT TIMES
  DURING PERIODS OF THE HEAVIEST SNOW.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY THE MID TO 
  LATE AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ028-059>062-072>075-240015-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0600Z/
BREMER-DALLAS-POLK-JASPER-POWESHIEK-MADISON-WARREN-MARION-MAHASKA-
INCLUDING THE CITIES OF...WAVERLY...ADEL...DES MOINES...NEWTON...
GRINNELL...WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA
1002 AM CST THU FEB 23 2012

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

* TIMING...RAIN WILL CONTINUE THROUGH THE MORNING BEFORE
  TRANSITIONING OVER TO SNOW DURING THE MID AFTERNOON HOURS. THE
  SNOW WILL TAPER OFF OVERNIGHT TONIGHT.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...WINDS ARE EXPECTED TO SHIFT FROM EAST THIS
  MORNING TO NORTH NORTHEAST BY THE AFTERNOON AND INCREASE TO 15
  TO 30 MPH. VISIBILITIES MAY BE REDUCED BELOW ONE MILE AT TIMES
  DURING PERIODS OF THE HEAVIEST SNOW.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY THE MID TO 
  LATE AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

KS
714 
WWUS43 KDMX 231920
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
120 PM CST THU FEB 23 2012

...HEAVY SNOW EXPECTED OVER PORTIONS CENTRAL TO NORTHWEST IOWA
THIS AFTERNOON AND EVENING...

.A BAND OF HEAVY SNOW WILL DEVELOP LATER THIS AFTERNOON AND
EVENING. THE HEAVIEST SNOWFALL WILL BE ACROSS NORTHWEST INTO
CENTRAL PORTIONS OF IOWA. VISIBILITIES MAY BE REDUCED AT TIMES
DURING THE HEAVIEST SNOW IN THE EVENING.

IAZ005-015-023-024-033>035-044>046-240300-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0300Z/
KOSSUTH-PALO ALTO-POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-
CRAWFORD-CARROLL-GREENE-
INCLUDING THE CITIES OF...ALGONA...EMMETSBURG...POCAHONTAS...
HUMBOLDT...SAC CITY...ROCKWELL CITY...FORT DODGE...DENISON...
CARROLL...JEFFERSON
120 PM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...RAIN WILL TRANSITION TO SNOW FROM WEST TO EAST THIS
  AFTERNOON. THE HEAVIEST SNOWFALL IS EXPECTED ACROSS PORTIONS OF
  NORTHWEST IOWA...WHERE SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR
  CAN BE EXPECTED. THE HEAVIEST SNOW WILL BEGIN TO TAPER OFF THIS
  EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 10 INCHES...WITH 
  LOCALLY HIGHER AMOUNTS POSSIBLE. 

* WINDS/VISIBILITY...WINDS WILL SHIFT TO THE NORTH LATER THIS
  AFTERNOON AND INCREASE TO 15 TO 30 MPH. VISIBILITIES MAY BE
  REDUCED BELOW ONE HALF OF A MILE AT TIMES DURING PERIODS OF THE
  HEAVIEST SNOW.

* IMPACTS...CONDITIONS WILL DETERIORATE DURING THE AFTERNOON. 
  ROADS WILL BECOME SLICK AND VERY HAZARDOUS TO TRAVEL IN THE 
  AREAS OF HEAVIEST SNOWFALL. 

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.

&&

$$

IAZ016-025>027-036>039-047>050-240330-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0600Z/
HANCOCK-WRIGHT-FRANKLIN-BUTLER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-
BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...GARNER...CLARION...HAMPTON...ALLISON...
WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES...
MARSHALLTOWN...TOLEDO
120 PM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* TIMING...RAIN WILL TRANSITION TO SNOW FROM WEST TO EAST THIS
  AFTERNOON. THE HEAVIEST SNOWFALL IS EXPECTED ACROSS CENTRAL
  IOWA...WHERE SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR CAN BE
  EXPECTED. THE HEAVIEST SNOW IS FORECAST TO TAPER OFF OVERNIGHT
  TONIGHT.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 8 INCHES...WITH 
  LOCALLY HIGHER AMOUNTS POSSIBLE. 

* WINDS/VISIBILITY...WINDS WILL SHIFT TO THE NORTH LATER THIS
  AFTERNOON AND INCREASE TO 15 TO 30 MPH. VISIBILITIES MAY BE
  REDUCED BELOW ONE HALF OF A MILE AT TIMES DURING PERIODS OF THE
  HEAVIEST SNOW.

* IMPACTS...CONDITIONS WILL DETERIORATE DURING THE AFTERNOON. 
  ROADS WILL BECOME SLICK AND VERY HAZARDOUS TO TRAVEL IN THE 
  AREAS OF HEAVIEST SNOWFALL. 

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.

&&

$$

IAZ004-006-007-017-057-058-071-240300-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0300Z/
EMMET-WINNEBAGO-WORTH-CERRO GORDO-AUDUBON-GUTHRIE-ADAIR-
INCLUDING THE CITIES OF...ESTHERVILLE...FOREST CITY...NORTHWOOD...
MASON CITY...AUDUBON...GUTHRIE CENTER...GREENFIELD
120 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...LIGHT SNOW CURRENTLY OVER FAR NORTHWEST IOWA AND
  SOUTHEASTERN SOUTH DAKOTA WILL SHIFT INTO IOWA THIS AFTERNOON.
  THE HEAVIEST SNOW WILL OCCUR IN THE MID AFTERNOON BEFORE
  TAPERING OFF IN THE EVENING.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...WINDS WILL SHIFT TO THE NORTH LATER THIS
  AFTERNOON AND INCREASE TO 15 TO 30 MPH. VISIBILITIES MAY BE
  REDUCED BELOW ONE MILE AT TIMES DURING PERIODS OF THE HEAVIEST
  SNOW.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY THE MID TO 
  LATE AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ028-059>062-072>075-240330-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0600Z/
BREMER-DALLAS-POLK-JASPER-POWESHIEK-MADISON-WARREN-MARION-MAHASKA-
INCLUDING THE CITIES OF...WAVERLY...ADEL...DES MOINES...NEWTON...
GRINNELL...WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA
120 PM CST THU FEB 23 2012

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

* TIMING...THE CURRENT RAIN ACROSS CENTRAL IOWA WILL GRADUALLY MIX
  WITH SNOW DURING THE EARLY AFTERNOON AND BECOME ALL SNOW BY THE
  MID TO LATE AFTERNOON HOURS. THE HEAVIEST SNOW LOOKS TO FALL
  DURING THE EARLY EVENING BEFORE TAPERING OFF AROUND MIDNIGHT.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES.

* WINDS/VISIBILITY...WINDS WILL SHIFT TO THE NORTH LATER THIS
  AFTERNOON AND INCREASE TO 15 TO 30 MPH. VISIBILITIES MAY BE
  REDUCED BELOW ONE MILE AT TIMES DURING PERIODS OF THE HEAVIEST
  SNOW.

* IMPACTS...CONDITIONS MAY QUICKLY DETERIORATE BY THE MID TO 
  LATE AFTERNOON. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$
820 
WWUS43 KDMX 232116
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
316 PM CST THU FEB 23 2012

...HEAVY SNOW EXPECTED OVER PORTIONS OF NORTHWEST THROUGH CENTRAL
IOWA THIS AFTERNOON AND EVENING...

.A BAND OF MODERATE TO HEAVY SNOW WILL SPREAD FROM NORTHWEST INTO
CENTRAL IOWA BY THIS EVENING. INTENSE SNOWFALL RATES AND LOW
VISIBILITIES ARE EXPECTED WHILE THE HEAVIEST SNOW IS FALLING...AND
TRAVEL WILL BECOME HAZARDOUS.

IAZ016-025>027-037>039-240530-
/O.CAN.KDMX.WS.W.0003.000000T0000Z-120224T0600Z/
/O.EXA.KDMX.WW.Y.0005.000000T0000Z-120224T0600Z/
HANCOCK-WRIGHT-FRANKLIN-BUTLER-HARDIN-GRUNDY-BLACK HAWK-
INCLUDING THE CITIES OF...GARNER...CLARION...HAMPTON...ALLISON...
ELDORA...GRUNDY CENTER...WATERLOO
316 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. THE WINTER STORM WARNING HAS BEEN CANCELLED.

* TIMING...SNOW WILL SPREAD ACROSS THE AREA LATE THIS AFTERNOON
  AND EVENING...THEN TAPER OFF BY AROUND MIDNIGHT.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 4 INCHES ARE
  FORECAST.

* WINDS/VISIBILITY...WINDS WILL SHIFT TO THE NORTH BY THIS EVENING
  AND INCREASE TO 15 TO 30 MPH. VISIBILITIES MAY BE REDUCED BELOW
  ONE MILE AT TIMES DURING PERIODS OF THE HEAVIEST SNOW.

* IMPACTS...CONDITIONS MAY DETERIORATE QUICKLY AS THE HEAVIER SNOW
  MOVES IN. TRAVEL WILL BECOME DIFFICULT AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS
AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ005-240300-
/O.CAN.KDMX.WS.W.0003.000000T0000Z-120224T0300Z/
/O.EXA.KDMX.WW.Y.0005.000000T0000Z-120224T0300Z/
KOSSUTH-
INCLUDING THE CITY OF...ALGONA
316 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 PM CST THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 9 PM CST THIS
EVENING. THE WINTER STORM WARNING HAS BEEN CANCELLED.

* TIMING...SNOW WILL SPREAD ACROSS THE AREA LATE THIS AFTERNOON
  AND EVENING...THEN TAPER OFF BY AROUND MIDNIGHT.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 4 INCHES ARE
  FORECAST.

* WINDS/VISIBILITY...WINDS WILL SHIFT TO THE NORTH LATE THIS
  AFTERNOON AND INCREASE TO 15 TO 30 MPH. VISIBILITIES MAY BE
  REDUCED BELOW ONE MILE AT TIMES DURING PERIODS OF THE HEAVIEST
  SNOW.

* IMPACTS...CONDITIONS MAY DETERIORATE QUICKLY AS THE HEAVIER SNOW
  MOVES IN. TRAVEL WILL BECOME DIFFICULT AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ006-007-017-232230-
/O.CAN.KDMX.WW.Y.0005.000000T0000Z-120224T0300Z/
WINNEBAGO-WORTH-CERRO GORDO-
INCLUDING THE CITIES OF...FOREST CITY...NORTHWOOD...MASON CITY
316 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

LIGHT SNOW IS FORECAST LATE THIS AFTERNOON INTO TONIGHT...HOWEVER
ACCUMULATIONS ARE EXPECTED TO BE LIGHT. THEREFORE THE ADVISORY HAS
BEEN CANCELLED.

$$

IAZ015-023-024-033>035-044>046-240300-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0300Z/
PALO ALTO-POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-CRAWFORD-
CARROLL-GREENE-
INCLUDING THE CITIES OF...EMMETSBURG...POCAHONTAS...HUMBOLDT...
SAC CITY...ROCKWELL CITY...FORT DODGE...DENISON...CARROLL...
JEFFERSON
316 PM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...SNOW WILL SPREAD ACROSS THE AREA LATE THIS AFTERNOON
  AND EVENING...THEN TAPER OFF BY AROUND MIDNIGHT.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 7 INCHES ARE
  FORECAST...WITH LOCALLY HIGHER AMOUNTS POSSIBLE.

* WINDS/VISIBILITY...WINDS WILL SHIFT TO THE NORTH LATER THIS
  AFTERNOON AND INCREASE TO 15 TO 30 MPH. VISIBILITIES WILL BE
  REDUCED BELOW ONE HALF MILE AT TIMES DURING PERIODS OF THE
  HEAVIEST SNOW.

* IMPACTS...CONDITIONS WILL DETERIORATE QUICKLY AS THE HEAVIER
  SNOW MOVES IN. ROADS WILL BECOME SLICK AND VERY HAZARDOUS TO
  TRAVEL.

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.

&&

$$

IAZ036-047>050-240530-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0600Z/
HAMILTON-BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...WEBSTER CITY...BOONE...AMES...
MARSHALLTOWN...TOLEDO
316 PM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* TIMING...SNOW WILL SPREAD ACROSS THE AREA LATE THIS AFTERNOON
  AND EVENING...THEN TAPER OFF BY AROUND MIDNIGHT.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 7 INCHES ARE
  FORECAST...WITH LOCALLY HIGHER AMOUNTS POSSIBLE.

* WINDS/VISIBILITY...WINDS WILL SHIFT TO THE NORTH LATER THIS
  AFTERNOON AND EVENING AND INCREASE TO 15 TO 30 MPH. VISIBILITIES
  WILL BE REDUCED BELOW ONE HALF MILE AT TIMES DURING PERIODS OF
  THE HEAVIEST SNOW.

* IMPACTS...CONDITIONS WILL DETERIORATE QUICKLY AS THE HEAVIER
  SNOW MOVES IN. ROADS WILL BECOME SLICK AND VERY HAZARDOUS TO
  TRAVEL.

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.

&&

$$

IAZ057-058-071-240530-
/O.EXT.KDMX.WW.Y.0005.000000T0000Z-120224T0600Z/
AUDUBON-GUTHRIE-ADAIR-
INCLUDING THE CITIES OF...AUDUBON...GUTHRIE CENTER...GREENFIELD
316 PM CST THU FEB 23 2012

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

* TIMING...SNOW WILL SPREAD ACROSS THE AREA LATE THIS AFTERNOON
  AND EVENING...THEN TAPER OFF BY AROUND MIDNIGHT.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 3 TO 5 INCHES ARE
  FORECAST.

* WINDS/VISIBILITY...WINDS WILL SHIFT TO THE NORTH LATE THIS
  AFTERNOON AND INCREASE TO 15 TO 30 MPH. VISIBILITIES WILL BE
  REDUCED BELOW ONE MILE AT TIMES DURING PERIODS OF THE HEAVIEST
  SNOW.

* IMPACTS...CONDITIONS WILL DETERIORATE QUICKLY AS THE HEAVIER
  SNOW MOVES IN. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ028-059>062-072>075-240530-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0600Z/
BREMER-DALLAS-POLK-JASPER-POWESHIEK-MADISON-WARREN-MARION-MAHASKA-
INCLUDING THE CITIES OF...WAVERLY...ADEL...DES MOINES...NEWTON...
GRINNELL...WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA
316 PM CST THU FEB 23 2012

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

* TIMING...SNOW WILL SPREAD ACROSS THE AREA LATE THIS AFTERNOON
  AND EVENING...THEN TAPER OFF BY AROUND MIDNIGHT.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 3 TO 5 INCHES ARE
  FORECAST.

* WINDS/VISIBILITY...WINDS WILL SHIFT TO THE NORTH BY THIS EVENING
  AND INCREASE TO 15 TO 30 MPH. VISIBILITIES WILL BE REDUCED BELOW
  ONE MILE AT TIMES DURING PERIODS OF THE HEAVIEST SNOW.

* IMPACTS...CONDITIONS DETERIORATE QUICKLY AS THE HEAVIER SNOW
  MOVES IN. TRAVEL WILL BECOME HAZARDOUS AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ004-240300-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0300Z/
EMMET-
INCLUDING THE CITY OF...ESTHERVILLE
316 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* TIMING...SNOW WILL SPREAD ACROSS THE AREA LATE THIS AFTERNOON
  AND PERSIST INTO TONIGHT BEFORE TAPERING OFF. 

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 4 INCHES ARE
  FORECAST.

* WINDS/VISIBILITY...WINDS WILL INCREASE TO 15 TO 30 MPH.
  VISIBILITIES MAY BE REDUCED BELOW ONE MILE AT TIMES DURING
  PERIODS OF THE HEAVIEST SNOW.

* IMPACTS...CONDITIONS DETERIORATE RAPIDLY AS HEAVIER SNOW MOVES
  THROUGH. TRAVEL MAY BECOME DIFFICULT AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

LEE
916 
WWUS43 KDMX 240043
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
643 PM CST THU FEB 23 2012

...MODERATE TO HEAVY SNOW EXPECTED OVER PORTIONS OF CENTRAL IOWA 
THIS EVENING AND TONIGHT...

.LOW PRESSURE MOVING FROM MISSOURI INTO ILLINOIS WILL CONTINUE TO
PRODUCE SNOW ACROSS CENTRAL IOWA THIS EVENING AND INTO THE
OVERNIGHT. THE SNOW IS EXPECTED TO GRADUALLY END FROM NORTHWEST TO
SOUTHEAST OVERNIGHT AS THE SYSTEM PULLS AWAY. 

IAZ015-023-024-033>035-044>046-240300-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0300Z/
PALO ALTO-POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-CRAWFORD-
CARROLL-GREENE-
INCLUDING THE CITIES OF...EMMETSBURG...POCAHONTAS...HUMBOLDT...
SAC CITY...ROCKWELL CITY...FORT DODGE...DENISON...CARROLL...
JEFFERSON
643 PM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* SHORT TERM TRENDS...THE HEAVIEST SNOW THROUGH THE EARLY EVENING
  HOURS WILL BE ALONG THE HIGHWAY 30 CORRIDOR WHERE SNOWFALL RATES
  WILL BE NEAR 1 TO 2 INCHES PER HOUR AT TIMES. LIGHTER SNOWFALL
  IS EXPECTED FARTHER NORTH FROM FORT DODGE TO EMMETSBURG.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 5 TO 7 INCHES ARE 
  FORECAST...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. 

* WINDS/VISIBILITY...WINDS WILL CONTINUE TO INCREASE FROM THE
  NORTHWEST THIS EVENING AT 15 TO 25 MPH WITH SOME HIGHER GUSTS.
  VISIBILITIES WILL BE REDUCED BELOW ONE QUARTER MILE AT TIMES
  DURING PERIODS OF THE HEAVIEST SNOW. 

* IMPACTS...CONDITIONS WILL CONTINUE TO DETERIORATE AS THE SNOW
  CONTINUES. ROADS WILL BECOME SLICK AND VERY HAZARDOUS.

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.

&&

$$

IAZ036-047>050-240600-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0600Z/
HAMILTON-BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...WEBSTER CITY...BOONE...AMES...
MARSHALLTOWN...TOLEDO
643 PM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* SHORT TERM TRENDS...SNOW WILL CONTINUE INTO THE EARLY EVENING
  HOURS WITH THE CORRIDOR OF HEAVIEST SNOW SETTING UP ALONG
  HIGHWAY 30. SNOWFALL RATES APPROACHING ONE INCH PER HOUR CAN BE
  EXPECTED FROM NEAR BOONE TO AMES AND MARSHALLTOWN.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 4 TO 7 INCHES ARE
  FORECAST...WITH LOCALLY HIGHER AMOUNTS POSSIBLE.

* WINDS/VISIBILITY...WINDS WILL INCREASE FROM THE NORTH AT 10 TO
  20 MPH WITH SOME HIGHER GUSTS. IN ADDITION...VISIBILITIES BELOW
  ONE QUARTER OF A MILE WILL BE POSSIBLE FROM TIME TO TIME IN THE
  HEAVIEST SNOW.  

* IMPACTS...CONDITIONS WILL DETERIORATE QUICKLY AS THE HEAVIER
  SNOW MOVES IN. ROADS WILL BECOME SLICK AND VERY HAZARDOUS.

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.

&&

$$

IAZ070-085-086-240600-
/O.EXA.KDMX.WW.Y.0005.000000T0000Z-120224T0600Z/
CASS-MONROE-WAPELLO-
INCLUDING THE CITIES OF...ATLANTIC...ALBIA...OTTUMWA
643 PM CST THU FEB 23 2012

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

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT.

* SHORT TERM TRENDS...SNOW WILL INCREASE ACROSS THESE AREAS THIS
  EVENING AND CONTINUE WITH OCCASIONAL MODERATE TO HEAVY SNOW.
  SNOWFALL RATES OF ONE HALF INCH TO ONE INCH AN HOURS WILL BE
  POSSIBLE AFTER THE SNOW BEGINS.  

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES ARE
  FORECAST.

* WINDS/VISIBILITY...WINDS WILL INCREASE FROM THE NORTH DURING THE
  EVENING AT 15 TO 25 MPH WITH HIGHER GUSTS. VISIBILITIES WILL BE
  BELOW ONE HALF MILE FROM TIME TO TIME IN THE HEAVIEST SNOW.

* IMPACTS...CONDITIONS WILL DETERIORATE QUICKLY AS THE HEAVIER 
  SNOW MOVES IN. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ016-025>028-037>039-057>062-071>075-240600-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0600Z/
HANCOCK-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY-BLACK HAWK-
AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-ADAIR-MADISON-WARREN-
MARION-MAHASKA-
INCLUDING THE CITIES OF...GARNER...CLARION...HAMPTON...ALLISON...
WAVERLY...ELDORA...GRUNDY CENTER...WATERLOO...AUDUBON...
GUTHRIE CENTER...ADEL...DES MOINES...NEWTON...GRINNELL...
GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA
643 PM CST THU FEB 23 2012

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

* SHORT TERM TRENDS...SNOW WILL PERSIST INTO THE EVENING HOURS
  ACROSS THE ADVISORY AREA. SOME OF THE HEAVIEST SNOW DURING THE
  EVENING WILL BE ALONG THE INTERSTATE 80 CORRIDOR WHERE SNOWFALL
  RATES UP TO ONE INCH PER HOUR WILL BE POSSIBLE. 

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 4 INCHES ARE
  LIKELY IN NORTHERN AREAS OF THE ADVISORY WITH 3 TO 5 INCHES IN
  SOUTHERN PORTIONS OF THE ADVISORY.

* WINDS/VISIBILITY...WINDS WILL CONTINUE TO INCREASE FROM THE
  NORTH AT 10 TO 20 MPH THIS EVENING. IN ADDITION...VISIBILITIES
  BELOW ONE HALF A MILE CAN BE EXPECTED FROM TIME TO TIME WITH THE
  HEAVIEST SNOW.

* IMPACTS...CONDITIONS WILL DETERIORATE QUICKLY AS THE HEAVIER 
  SNOW MOVES IN. TRAVEL WILL BECOME QUITE DIFFICULT AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ004-005-240300-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0300Z/
EMMET-KOSSUTH-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA
643 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* SHORT TERM TRENDS...LIGHT SNOW SHOULD SLOWLY DIMINISH THIS
  EVENING WITH ADDITIONAL ACCUMULATIONS OF AN INCH OR LESS.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 1 TO 4 INCHES ARE
  FORECAST.

* WINDS/VISIBILITY...NORTH WINDS AT 15 TO 25 MPH ARE EXPECTED WITH
  VISIBILITIES REDUCED BELOW ONE MILE AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

CC
148 
WWUS43 KDMX 240250
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
850 PM CST THU FEB 23 2012

...MODERATE TO HEAVY SNOW EXPECTED OVER PORTIONS OF CENTRAL IOWA
THIS EVENING AND TONIGHT...

.LOW PRESSURE MOVING FROM MISSOURI INTO ILLINOIS WILL CONTINUE TO
PRODUCE SNOW ACROSS CENTRAL IOWA THIS EVENING AND INTO THE
OVERNIGHT. THE SNOW IS EXPECTED TO GRADUALLY END FROM NORTHWEST
TO SOUTHEAST OVERNIGHT AS THE SYSTEM PULLS AWAY.

IAZ015-023-024-033>035-240400-
/O.EXP.KDMX.WS.W.0003.000000T0000Z-120224T0300Z/
PALO ALTO-POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-
INCLUDING THE CITIES OF...EMMETSBURG...POCAHONTAS...HUMBOLDT...
SAC CITY...ROCKWELL CITY...FORT DODGE
850 PM CST THU FEB 23 2012

...WINTER STORM WARNING WILL EXPIRE AT 9 PM CST THIS EVENING...

A FEW PERIODS OF LIGHT SNOW WILL CONTINUE THIS EVENING...HOWEVER
ANY ADDITIONAL ACCUMULATION WILL BE UNDER AN INCH.

$$

IAZ004-005-240400-
/O.EXP.KDMX.WW.Y.0005.000000T0000Z-120224T0300Z/
EMMET-KOSSUTH-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA
850 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 PM CST THIS EVENING...

A FEW PERIODS OF LIGHT SNOW ARE EXPECTED DURING THE
EVENING...HOWEVER ADDITIONAL ACCUMULATIONS WILL BE UNDER AN INCH.

$$

IAZ044>046-240600-
/O.EXT.KDMX.WS.W.0003.000000T0000Z-120224T0600Z/
CRAWFORD-CARROLL-GREENE-
INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON
850 PM CST THU FEB 23 2012

...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* SHORT TERM TRENDS...LIGHT TO MODERATE SNOWFALL WILL CONTINUE
  DURING THE REMAINDER OF THE EVENING. ADDITIONAL SNOWFALL OF AN
  INCH OR TWO IS EXPECTED THROUGH MIDNIGHT BEFORE THE SNOW ENDS.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 3 TO 6 INCHES ARE
  EXPECTED WITH THE HEAVIEST AMOUNTS CLOSER TO DENISON.

* WINDS/VISIBILITY...WINDS FROM THE NORTHWEST AT 15 TO 25 MPH CAN
  BE EXPECTED ALONG WITH VISIBILITIES OF AROUND ONE MILE. BRIEFLY
  LOWER VISIBILITIES MAY OCCUR IN RURAL AREAS.

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.

&&

$$

IAZ036-047>050-240600-
/O.CON.KDMX.WS.W.0003.000000T0000Z-120224T0600Z/
HAMILTON-BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...WEBSTER CITY...BOONE...AMES...
MARSHALLTOWN...TOLEDO
850 PM CST THU FEB 23 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* SHORT TERM TRENDS...ADDITIONAL LIGHT TO MODERATE SNOW IS
  EXPECTED THROUGH MIDNIGHT. SNOWFALL RATES OF UP TO ONE HALF INCH
  PER HOURS WILL BE POSSIBLE FROM TIME TO TIME.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 3 TO 6 INCHES ARE
  FORECAST.

* WINDS/VISIBILITY...WINDS FROM THE NORTH AT 15 TO 25 MPH CAN BE
  EXPECTED THROUGH MIDNIGHT. VISIBILITIES OF 1 TO 2 MILES WILL BE
  COMMON ALTHOUGH BRIEF PERIODS OF LOWER VISIBILITIES MAY OCCUR IN
  RURAL AREAS.

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.

&&

$$

IAZ016-240400-
/O.EXT.KDMX.WW.Y.0005.000000T0000Z-120224T0300Z/
HANCOCK-
INCLUDING THE CITY OF...GARNER
850 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 PM CST THIS
EVENING...

SOME LIGHT SNOW IS EXPECTED THROUGH THE EVENING...HOWEVER
ANY ADDITIONAL ACCUMULATIONS WILL BE LIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ061-062-073>075-085-086-240900-
/O.EXT.KDMX.WW.Y.0005.000000T0000Z-120224T0900Z/
JASPER-POWESHIEK-WARREN-MARION-MAHASKA-MONROE-WAPELLO-
INCLUDING THE CITIES OF...NEWTON...GRINNELL...INDIANOLA...
KNOXVILLE...OSKALOOSA...ALBIA...OTTUMWA
850 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 3 AM CST FRIDAY...

* SHORT TERM TRENDS...SNOW WILL PERSIST THROUGH THE REMAINDER OF
  THE EVENING WITH SNOWFALL RATES OF AROUND ONE HALF PER HOUR.  

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES ARE
  EXPECTED.  

* WINDS/VISIBILITY...WINDS WILL CONTINUE TO INCREASE FROM THE
  NORTH AT 10 TO 20 MPH THIS EVENING. IN ADDITION...VISIBILITIES
  BELOW ONE MILE CAN BE EXPECTED FROM TIME TO TIME WITH THE
  HEAVIEST SNOW.

* IMPACTS...CONDITIONS WILL CONTINUE TO DETERIORATE AS THE HEAVIER
  SNOW MOVES IN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ025>028-037>039-057>060-070>072-240600-
/O.CON.KDMX.WW.Y.0005.000000T0000Z-120224T0600Z/
WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY-BLACK HAWK-AUDUBON-
GUTHRIE-DALLAS-POLK-CASS-ADAIR-MADISON-
INCLUDING THE CITIES OF...CLARION...HAMPTON...ALLISON...WAVERLY...
ELDORA...GRUNDY CENTER...WATERLOO...AUDUBON...GUTHRIE CENTER...
ADEL...DES MOINES...ATLANTIC...GREENFIELD...WINTERSET
850 PM CST THU FEB 23 2012

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

* SHORT TERM TRENDS...PERIODS OF LIGHT TO MODERATE SNOW WILL
  CONTINUE FOR THE REST OF THE EVENING. SNOWFALL RATES UP TO THREE
  QUARTERS OF A INCH PER HOUR WILL OCCUR WITH THE HEAVIEST
  SNOWFALL.  

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES ARE
  EXPECTED.

* WINDS/VISIBILITY...WINDS WILL CONTINUE TO INCREASE FROM THE
  NORTH AT 10 TO 20 MPH THIS EVENING. IN ADDITION...VISIBILITIES
  BELOW ONE MILE CAN BE EXPECTED FROM TIME TO TIME WITH THE
  HEAVIEST SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

CC
653 
WWUS43 KDMX 240559
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1159 PM CST THU FEB 23 2012


IAZ036-044>050-240700-
/O.CAN.KDMX.WS.W.0003.000000T0000Z-120224T0600Z/
HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...WEBSTER CITY...DENISON...CARROLL...
JEFFERSON...BOONE...AMES...MARSHALLTOWN...TOLEDO
1159 PM CST THU FEB 23 2012

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE
WINTER STORM WARNING. 

ACCUMULATING SNOW HAS ENDED ACROSS MUCH OF THE AREA...THUS THE
WARNING HAS BEEN CANCELLED. LIGHT SNOW IS STILL EXPECTED
TO LINGER THROUGH THE OVERNIGHT HOURS...WITH LITTLE OR NO
ACCUMULATION EXPECTED. 

$$

IAZ061-062-073>075-085-086-240900-
/O.CAN.KDMX.WW.Y.0005.000000T0000Z-120224T0900Z/
/O.NEW.KDMX.WW.Y.0006.120224T0600Z-120224T0900Z/
JASPER-POWESHIEK-WARREN-MARION-MAHASKA-MONROE-WAPELLO-
INCLUDING THE CITIES OF...NEWTON...GRINNELL...INDIANOLA...
KNOXVILLE...OSKALOOSA...ALBIA...OTTUMWA
1159 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 AM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 3 AM CST
FRIDAY.

* SHORT TERM TRENDS...SNOW WILL CONTINUE INTO THE EARLY MORNING
  HOURS WITH SNOWFALL RATES OF AROUND ONE HALF INCH PER HOUR.

* STORM TOTAL SNOW...TOTAL SNOW AMOUNTS OF 2 TO 5 INCHES ARE 
  EXPECTED. 

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 10 TO 20 MPH WITH
  HIGHER GUSTS ARE EXPECTED. IN ADDITION...VISIBILITIES BELOW ONE
  MILE CAN BE EXPECTED FROM TIME TO TIME WITH THE HEAVIEST SNOW.

* IMPACTS...TRAVEL WILL BE DIFFICULT IN THE HEAVIER SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ025>028-037>039-057>060-070>072-240700-
/O.CAN.KDMX.WW.Y.0005.000000T0000Z-120224T0600Z/
WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY-BLACK HAWK-AUDUBON-
GUTHRIE-DALLAS-POLK-CASS-ADAIR-MADISON-
INCLUDING THE CITIES OF...CLARION...HAMPTON...ALLISON...WAVERLY...
ELDORA...GRUNDY CENTER...WATERLOO...AUDUBON...GUTHRIE CENTER...
ADEL...DES MOINES...ATLANTIC...GREENFIELD...WINTERSET
1159 PM CST THU FEB 23 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

ACCUMULATING SNOW HAS ENDED ACROSS MUCH OF THE AREA...THUS THE
ADVISORY HAS BEEN CANCELLED. LIGHT SNOW IS STILL EXPECTED TO
LINGER THROUGH THE OVERNIGHT HOURS...WITH LITTLE OR NO
ACCUMULATION EXPECTED.

$$


MJB

What forecasters said that day

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

NWS Des Moines, IA wrote its last area forecast discussion before this winter storm warning went out at Feb 22, 8:55 PM CST, 1 hour 18 minutes earlier.

Area forecast discussion, Feb 22, 8:55 PM CST, 1 hour 18 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
855 PM CST WED FEB 22 2012

.UPDATE...
WORKING ON UPDATING GRIDS AND HEADLINES FOR FURTHER SOUTH SOLUTIONS
WITH LATEST NAM AND EC/GEM. WILL BE WORKING ON SHIFTING HEAVIEST
SNOW/CHANCES FOR SNOW FURTHER SOUTH ALONG WITH MAKING A HEADLINE
DECISION WITH THE WATCH.

.SHORT TERM /TONIGHT/...
THIS FORECAST IS DOMINATED BY LOW CONFIDENCE AS MODELS STRUGGLE TO
CONVERGE ON A SOLUTION FOR THIS UPCOMING SYSTEM.  RECENT INDICATION
ARE THAT THE MORE SOUTHERN EURO/GEM MAY END UP MORE IN LINE WITH
REALITY GIVEN THE TRENDS OF THE OTHER MODELS IN THAT DIRECTION.  18Z
NAM IS SIGNIFICANTLY FARTHER SOUTHEAST AND SLOWER THAN ITS 12Z
COUNTERPART AND IF THIS TREND CONTINUES...SOME WHOLESALE CHANGES MAY
BE NEEDED THIS EVENING OR OVERNIGHT TO THE FORECAST.  INITIALLY...
WILL SEE A SURGE OF WARM ADVECTION AND ISENTROPIC LIFT OVERNIGHT
WHICH WILL SPREAD CLOUDS ACROSS MUCH OF THE FORECAST AREA DURING THE
EVENING.  DEEPER SATURATION OCCURS AFTER MIDNIGHT AS LIFT
INTENSIFIES WITH STRONGEST ISENTROPIC FORCING MOVING ACRS THE CWA.
LIGHT RAIN IS EXPECTED TO DEVELOP AND EXPAND ACRS MUCH OF SOUTHERN
IA OVERNIGHT...PRIMARILY SOUTH OF INTERSTATE 80.  SOUNDINGS ARE ALL
FAIRLY CONSISTENT IN KEEPING SURFACE TEMPS IN THE MID 30S WITH THIS
PRECIPITATION.  FARTHER NORTH...INCREASING MID LEVEL FORCING AND
FRONTOGENETICAL CIRCULATIONS AND EXPECTED TO PRODUCE THE NECESSARY
LIFT FOR EXPANDING PCPN...ESPECIALLY FROM 09-12Z IN OUR NORTHWEST.
HAVE GONE WITH AN INITIAL RAIN/SNOW MIX BUT AS FORCING INCREASES
ALONG WITH PCPN RATES...SOUNDINGS COLLAPSE TO FREEZING AND PCPN
SHOULD SWITCH TO ALL SNOW.  AGAIN...MAIN CONCERN ACRS THE NORTH IS
THE CURRENT TRENDS IN THE MODELS WITH SLOWER AND FARTHER SOUTH
SCENARIOS.  THEREFORE...HAVE KEPT THE WATCH IN PLACE AS CONFIDENCE
IN LOCATIONS REMAINS VERY FLUID.

.LONG TERM /TOMORROW THROUGH WEDNESDAY/...
LATEST WV IMAGERY SHOWS STRIP OF VORTICITY ON THE POLEWARD SIDE OF
AN UPPER LEVEL FRONT LOCATED ACROSS THE PACIFIC NORTHWEST...WITH A
SMALL CONGEALED AREA OF CYCLONIC VORTICITY CURRENTLY LOCATED IN
SOUTHERN ALBERTA. THE INTERACTIONS OF THESE FEATURES WILL PLAY A
SIGNIFICANT ROLE IN THE TANGIBLE WEATHER ACROSS CENTRAL IOWA OVER
THE NEXT 48 HOURS. FOLLOWING THIS SYSTEM...ANOTHER STRONG WINTER
STORM WILL MOVE ACROSS THE MIDWEST EARLY NEXT WEEK...BUT THIS TRACK
IS FORECAST TO BE NORTH OF CENTRAL IOWA...WITH THE HEAVIEST SNOW
BAND FROM CENTRAL MN THROUGH NORTHERN WI.

THURSDAY THROUGH FRIDAY NIGHT...AN H250 JET MAX WITH +150KT WINDS
WILL MOVE ACROSS THE NORTHERN ROCKIES OVERNIGHT. EVENTUALLY THIS JET
WILL ROUND THE BASE OF THE TROUGH AND PHASE WITH THE WEAK SHORTWAVE
DROPPING DOWN FROM ALBERTA. THE INTERACTION OF THESE TWO UPPER LEVEL
FEATURES WILL DETERMINE WHERE THE BEST UPPER LEVEL FORCING SETS
UP...WHICH IN TURN WILL DECIDE THE EXACT TRACK OF THE SURFACE
LOW...WHICH WILL DICTATE WHERE THE HEAVIEST BAND OF SNOWFALL OCCURS.
AT THE START OF THE PERIOD...SNOW SHOULD BE ONGOING ACROSS THE
NORTH...WITH A GRADUAL TRANSITION TO RAIN ACROSS THE CENTRAL AND
SOUTHERN CWA.  CURRENT THINKING IS FOR HEAVIEST SNOW TO OCCUR FROM
NORTHWEST IOWA...THROUGH EAST CENTRAL IOWA...OR ALONG A LING FROM
SIOUX CITY THROUGH DAVENPORT. HOWEVER...AS SHORT TERM DISCUSSION
INDICATED...LATEST NUMERICAL GUIDANCE SHOWS A GRADUAL SOUTHWESTERN
SHIFT WITH THE TRACK OF THIS STORM...SO EXPECT EXACT TOTALS TO
CHANGE FROM WHAT THEY CURRENTLY ARE. ONCE THIS SYSTEM MOVES
EASTWARD...WE WILL SEE COLD AIR ADVECTION SPREAD ACROSS THE STATE.
FORECAST SOUNDINGS SHOW CONSIDERABLY DEEP BOUNDARY LAYER
MIXING...WITH SOME CONVECTIVE POTENTIAL DURING THE AFTERNOON HOURS.
WHAT THIS MEANS IS THERE IS A HIGH PROBABILITY OF CONVECTIVE
ROLLS...WHICH COULD TRANSPIRE INTO SNOW SQUALLS WITH ZERO VISIBILITY
AT TIMES. THIS THREAT IS ESPECIALLY TRUE AT THOSE LOCATIONS WHERE
THE HEAVY SNOW DOES INDEED FALL TOMORROW. DID NOT FEEL ANY
ADDITIONAL HEADLINES WERE NECESSARY AT THIS TIME TO HIGHLIGHT THE
THREAT...BUT A SHORT-FUSED BLIZZARD WATCH MAY BE NECESSARY FOR
FRIDAY AFTERNOON.

SATURDAY THROUGH WEDNESDAY...GIVEN THE HIGH MAINTENANCE WEATHER
SYSTEM ON HAND FOR THURSDAY AND FRIDAY...DID NOT MAKE SIGNIFICANT
CHANGES TO THE REST OF THE EXTENDED GRIDS. A POWERFUL WINTER STORM
WILL MOVE ACROSS THE UPPER MIDWEST SUNDAY INTO MONDAY...BUT IOWA
SHOULD REMAIN IN THE WARM SECTOR WITH MOST OF THE PRECIP EXPECTED TO
FALL AS RAIN. THIS COULD TRANSITION TO A WINTRY MIX AS THE COLD AIR
GETS WRAPPED IN BEHIND THE SYSTEM. FOLLOWING THIS STORM...HIGH
PRESSURE WILL BUILD ACROSS THE UPPER MIDWEST WHICH WILL DRY US
OUT...AND BRING COOLER TEMPS FOR MONDAY THROUGH WEDNESDAY.

AVIATION DISCUSSION...23/00Z
WINDS TO SHIFT AROUND TO THE SOUTHEAST WITH MAINLY VFR CONDITIONS
EXPECTED THROUGHOUT THE INITIAL 6 HOURS OF THE TAF PERIOD. BY THE
SECOND HALF OF THE PERIOD...RAIN IS EXPECTED TO PUSH INTO SOUTHERN
IOWA AT KDSM AND KOTM WITH MVFR CIGS THROUGH THE MORNING HOURS.
FAIRLY STRONG SYSTEM TO MOVE THROUGH THE AREA THURSDAY WITH A MIX OF
RASN INITIALLY...THEN CHANGING OVER TO SNOW AND TO CONTINUE THROUGH
THE DAY THURSDAY AT KMCW...KALO...AND KFOD. EXPECT IFR VSBYS AND
CIGS...WITH LIFR VSBYS/CIGS POSSIBLE AT TIMES IN HEAVIER SNOW BANDS.
SNOW EXPECTED TO CONTINUE THROUGH THURSDAY AFTERNOON.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON
FOR BLACK HAWK-BREMER-BUTLER-CERRO GORDO-EMMET-FRANKLIN-GRUNDY-
HAMILTON-HANCOCK-HARDIN-HUMBOLDT-KOSSUTH-PALO ALTO-POCAHONTAS-
TAMA-WEBSTER-WINNEBAGO-WORTH-WRIGHT.

&&

SHORT TERM UPDATE...COGIL
LONG TERM...BEITLICH
AVIATION...BEERENDS
UPDATE...BEERENDS
Hazardous weather outlook, Feb 22, 11:45 AM CST, 10 hours 28 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
1145 AM CST WED FEB 22 2012

IAZ004>007-015>017-023>028-035>039-050-231745-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER-HAMILTON-
HARDIN-GRUNDY-BLACK HAWK-TAMA-
1145 AM CST WED FEB 22 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SNOW IS EXPECTED TO DEVELOP LATE TONIGHT WITH MODERATE TO HEAVY
ACCUMULATIONS. A WINTER STORM WATCH IS IN EFFECT STARTING LATE
TONIGHT. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT
WEATHER.GOV/DESMOINES FOR FURTHER DETAILS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SNOW IS EXPECTED TO CONTINUE INTO THURSDAY WITH MODERATE TO HEAVY
ACCUMULATIONS...ALONG WITH INCREASING NORTHWESTERLY WINDS. A
WINTER STORM WATCH IS IN EFFECT FOR THURSDAY. PLEASE REFER TO THE
NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR
FURTHER DETAILS.

FOR FRIDAY...NORTHWEST WINDS OF 20 TO 30 MPH IN COMBINATION WITH
SNOW SHOWERS MAY PRODUCE NEAR ZERO VISIBILITIES AT TIMES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED BUT SNOWFALL REPORTS LATE
TONIGHT AND THURSDAY WOULD BE APPRECIATED.

IAZ033-034-044>049-057>062-070>075-081>086-092>097-231745-
SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-AUDUBON-
GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-WARREN-
MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-
RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-
1145 AM CST WED FEB 22 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

FOR FRIDAY...NORTHWEST WINDS OF 20 TO 30 MPH IN COMBINATION WITH
OCCASIONAL SNOW SHOWERS MAY PRODUCE LOW VISIBILITIES AT TIMES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

JB

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 22, 10:13 PM CSTWinter Weather AdvisoryDMXAdair, Audubon, Black Hawk, Bremer, Butler, Cass and 21 more26 hr

Nearby

Winter Storm Warnings in Iowa, 2012Every winter storm warning in 2012

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.