Alert archive / Iowa / Wind Chill Warnings in 2008

Wind Chill Warning 3, NWS Des Moines, IA

February 19, 200830 counties in Iowa

NWS Des Moines, IA issued this wind chill warning at Feb 19, 2008, 3:43 PM CST for 30 counties in Iowa. It took effect at Feb 19, 2008, 8:36 PM CST. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 19, 2008, 3:43 PM CST (21:43 UTC)
In effect from
Feb 19, 2008, 8:36 PM CST
Expired
Feb 20, 2008, 12:00 PM CST
In force
15 hr
Issued by
NWS Des Moines, IA
All 30 counties

Audubon County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cerro Gordo County, IA, Crawford County, IA, Emmet County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Kossuth County, IA, Marshall County, IA, Palo Alto County, IA, Pocahontas County, IA, Sac County, IA, Story County, IA, Tama County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 86 km from the middle of the area, began a volume at 21:48 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

Omaha, NE (KOAX), launched 12:00Z, 9.7 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 12:00Z on 2008-02-19Temperature 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 12:00Z on 2008-02-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 square meters per square second.1939587897117136Sfc1 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
1142 m above ground
0-6 km bulk shear
97 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
413 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.

000 
WWUS43 KDMX 192143
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
343 PM CST TUE FEB 19 2008

...DANGEROUS WIND CHILLS AND BLOWING SNOW TO IMPACT AREA TONIGHT
AND WEDNESDAY MORNING...

.A STRONG ARCTIC COLD FRONT CURRENTLY OVER SOUTH CENTRAL MINNESOTA
WILL BE HEADING SOUTH INTO IOWA THIS EVENING. BEHIND THE FRONT
...WINDS WILL INCREASE RAPIDLY AND TEMPERATURES WILL FALL QUICKLY
TO SUB ZERO READINGS BEFORE MIDNIGHT. THE COMBINATION OF STRONG
WINDS AND SUB ZERO TEMPERATURES WILL CREATE DANGEROUS CONDITIONS
OVER A LARGE PORTION OF CENTRAL IOWA TONIGHT AND WEDNESDAY
MORNING.

IAZ006-007-016-017-025>028-200545-
/O.NEW.KDMX.WC.W.0003.080220T0300Z-080220T1500Z/
/O.NEW.KDMX.BS.Y.0005.080220T0300Z-080220T1500Z/
WINNEBAGO-WORTH-HANCOCK-CERRO GORDO-WRIGHT-FRANKLIN-BUTLER-BREMER-
INCLUDING THE CITIES OF...FOREST CITY...NORTHWOOD...GARNER...
MASON CITY...CLARION...HAMPTON...ALLISON...WAVERLY
343 PM CST TUE FEB 19 2008

...WIND CHILL WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY...
...BLOWING SNOW ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND
CHILL WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY. A BLOWING SNOW ADVISORY HAS ALSO BEEN ISSUED. THIS
BLOWING SNOW ADVISORY IS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY. 

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS AND
SUB ZERO TEMPERATURES LATER THIS EVENING. THIS WILL RESULT IN WIND
CHILL VALUES BETWEEN 30 AND 35 BELOW ZERO OVERNIGHT TONIGHT THROUGH
WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT IN BLOWING
AND DRIFTING SNOW...WITH VISIBILITIES REDUCED TO A FEW HUNDRED FEET
AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR DANGEROUS TRAVEL
...ESPECIALLY IN RURAL OR OPEN AREAS AFTER 9 PM THIS EVENING AND
FOR THE REMAINDER OF THE NIGHT TIME HOURS.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

IAZ004-005-015-023-024-033>035-200545-
/O.NEW.KDMX.WC.W.0003.080220T0300Z-080220T1500Z/
EMMET-KOSSUTH-PALO ALTO-POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...EMMETSBURG...
POCAHONTAS...HUMBOLDT...SAC CITY...ROCKWELL CITY...FORT DODGE
343 PM CST TUE FEB 19 2008

...WIND CHILL WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST
WEDNESDAY.

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS AND
SUB ZERO TEMPERATURES LATER THIS EVENING. THIS WILL RESULT IN WIND
CHILL VALUES BETWEEN 30 AND 35 BELOW ZERO OVERNIGHT TONIGHT THROUGH
WEDNESDAY MORNING.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ037>039-049-050-061-062-200545-
/O.NEW.KDMX.BS.Y.0005.080220T0300Z-080220T1500Z/
/O.NEW.KDMX.WC.Y.0010.080220T0300Z-080220T1500Z/
HARDIN-GRUNDY-BLACK HAWK-MARSHALL-TAMA-JASPER-POWESHIEK-
INCLUDING THE CITIES OF...ELDORA...GRUNDY CENTER...WATERLOO...
MARSHALLTOWN...TOLEDO...NEWTON...GRINNELL
343 PM CST TUE FEB 19 2008

...BLOWING SNOW ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A BLOWING
SNOW ADVISORY...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY. A WIND CHILL ADVISORY HAS ALSO BEEN ISSUED. THIS
WIND CHILL ADVISORY IS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY. 

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS AND
SUB ZERO TEMPERATURES LATER THIS EVENING. THIS WILL RESULT IN WIND
CHILL VALUES BETWEEN 20 AND 30 BELOW ZERO OVERNIGHT TONIGHT
THROUGH WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT IN
BLOWING AND DRIFTING SNOW...WITH VISIBILITIES REDUCED TO A FEW
HUNDRED FEET AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR
DANGEROUS TRAVEL...ESPECIALLY IN RURAL OR OPEN AREAS AFTER 9 PM
THIS EVENING AND FOR THE REMAINDER OF THE NIGHT TIME HOURS. THIS
WILL ESPECIALLY IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER THE
PAST WEEKEND.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING
...ESPECIALLY IN OPEN AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ074-075-085-086-096-097-200545-
/O.NEW.KDMX.BS.Y.0005.080220T0300Z-080220T1500Z/
/O.NEW.KDMX.WC.Y.0010.080220T0600Z-080220T1500Z/
MARION-MAHASKA-MONROE-WAPELLO-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...KNOXVILLE...OSKALOOSA...ALBIA...
OTTUMWA...CENTERVILLE...BLOOMFIELD
343 PM CST TUE FEB 19 2008

...BLOWING SNOW ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A BLOWING
SNOW ADVISORY...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST WEDNESDAY. A WIND CHILL ADVISORY HAS ALSO BEEN ISSUED. THIS
WIND CHILL ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST WEDNESDAY. 

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS AND
SUB ZERO TEMPERATURES LATER THIS EVENING. THIS WILL RESULT IN WIND
CHILL VALUES BETWEEN 20 AND 30 BELOW ZERO LATE TONIGHT THROUGH
WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT IN BLOWING
AND DRIFTING SNOW...WITH VISIBILITIES REDUCED TO A FEW HUNDRED FEET
AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR DANGEROUS TRAVEL
...ESPECIALLY IN RURAL OR OPEN AREAS AFTER 9 PM THIS EVENING AND
FOR THE REMAINDER OF THE NIGHT TIME HOURS. THIS WILL ESPECIALLY
IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER THE PAST WEEKEND.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING...ESPECIALLY IN OPEN AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ036-044>048-057>060-200545-
/O.NEW.KDMX.WC.Y.0010.080220T0300Z-080220T1500Z/
HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY-AUDUBON-GUTHRIE-
DALLAS-POLK-
INCLUDING THE CITIES OF...WEBSTER CITY...DENISON...CARROLL...
JEFFERSON...BOONE...AMES...AUDUBON...GUTHRIE CENTER...ADEL...
DES MOINES
343 PM CST TUE FEB 19 2008

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

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO
9 AM CST WEDNESDAY. 

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS AND
SUB ZERO TEMPERATURES LATER THIS EVENING. THIS WILL RESULT IN WIND
CHILL VALUES BETWEEN 20 AND 30 BELOW ZERO LATE THIS EVENING THROUGH
WEDNESDAY MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ070>073-081>084-092>095-200545-
/O.NEW.KDMX.WC.Y.0010.080220T0600Z-080220T1500Z/
CASS-ADAIR-MADISON-WARREN-ADAMS-UNION-CLARKE-LUCAS-TAYLOR-
RINGGOLD-DECATUR-WAYNE-
INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET...
INDIANOLA...CORNING...CRESTON...OSCEOLA...CHARITON...BEDFORD...
MOUNT AYR...LEON...CORYDON
343 PM CST TUE FEB 19 2008

...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST WEDNESDAY. 

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS AND
SUB ZERO TEMPERATURES AFTER MIDNIGHT. THIS WILL RESULT IN WIND CHILL
VALUES BETWEEN 20 AND 30 BELOW ZERO LATE TONIGHT THROUGH WEDNESDAY
MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

REV
5 follow-up statements
000 
WWUS43 KDMX 200236
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
836 PM CST TUE FEB 19 2008

...DANGEROUS WIND CHILLS AND BLOWING SNOW TO IMPACT AREA TONIGHT
AND WEDNESDAY MORNING...

.A STRONG ARCTIC COLD FRONT CURRENTLY OVER CENTRAL IOWA WILL
CONTINUE PUSHING SOUTH OVERNIGHT. BEHIND THE FRONT...WINDS WILL
INCREASE RAPIDLY AND TEMPERATURES WILL FALL QUICKLY TO SUB ZERO
READINGS BEFORE MIDNIGHT. THE COMBINATION OF STRONG WINDS AND SUB
ZERO TEMPERATURES WILL CREATE DANGEROUS CONDITIONS OVER A LARGE
PORTION OF CENTRAL IOWA TONIGHT AND WEDNESDAY MORNING.

IAZ037>039-049-050-201045-
/O.UPG.KDMX.WC.Y.0010.080220T0300Z-080220T1500Z/
/O.EXB.KDMX.WC.W.0003.080220T0300Z-080220T1800Z/
/O.CON.KDMX.BS.Y.0005.080220T0300Z-080220T1500Z/
HARDIN-GRUNDY-BLACK HAWK-MARSHALL-TAMA-
INCLUDING THE CITIES OF...ELDORA...GRUNDY CENTER...WATERLOO...
MARSHALLTOWN...TOLEDO
836 PM CST TUE FEB 19 2008

...WIND CHILL WARNING IN EFFECT UNTIL 12 PM CST WEDNESDAY...
...BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND
CHILL WARNING...WHICH IS IN EFFECT UNTIL 12 PM CST WEDNESDAY. A
BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST WEDNESDAY.

ARCTIC AIR WILL SURGE INTO THE REGION LATE THIS EVENING...WITH
TEMPERATURES FALLING WELL BELOW ZERO AFTER MIDNIGHT. COMBINED WITH
NORTHWEST WINDS 15 TO 30 MPH...WIND CHILL READINGS WILL DROP TO
A DANGEROUS 25 BELOW TO 35 BELOW ZERO LATE TONIGHT THROUGH
WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT IN BLOWING
AND DRIFTING SNOW...WITH VISIBILITY REDUCED TO A FEW HUNDRED
FEET AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR DANGEROUS
TRAVEL...ESPECIALLY IN RURAL OR OPEN AREAS OVERNIGHT. THIS WILL
ESPECIALLY IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER THE PAST
WEEKEND.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITY WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

IAZ036-047-048-201045-
/O.UPG.KDMX.WC.Y.0010.080220T0300Z-080220T1500Z/
/O.EXB.KDMX.WC.W.0003.080220T0300Z-080220T1800Z/
/O.EXA.KDMX.BS.Y.0005.080220T0300Z-080220T1500Z/
HAMILTON-BOONE-STORY-
INCLUDING THE CITIES OF...WEBSTER CITY...BOONE...AMES
836 PM CST TUE FEB 19 2008

...WIND CHILL WARNING IN EFFECT UNTIL 12 PM CST WEDNESDAY...
...BLOWING SNOW ADVISORY IN EFFECT UNTIL 9 AM CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND
CHILL WARNING...WHICH IS IN EFFECT UNTIL 12 PM CST WEDNESDAY. A
BLOWING SNOW ADVISORY HAS ALSO BEEN ISSUED. THIS BLOWING SNOW
ADVISORY IS IN EFFECT UNTIL 9 AM CST WEDNESDAY.  

ARCTIC AIR WILL SURGE INTO THE REGION LATE THIS EVENING...WITH
TEMPERATURES FALLING WELL BELOW ZERO AFTER MIDNIGHT. COMBINED WITH
NORTHWEST WINDS 15 TO 30 MPH...WIND CHILL READINGS WILL DROP TO
A DANGEROUS 25 BELOW TO 35 BELOW ZERO LATE TONIGHT THROUGH
WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT IN BLOWING
AND DRIFTING SNOW...WITH VISIBILITY REDUCED TO A FEW HUNDRED
FEET AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR DANGEROUS
TRAVEL...ESPECIALLY IN RURAL OR OPEN AREAS OVERNIGHT. THIS WILL
ESPECIALLY IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER THE PAST
WEEKEND.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

IAZ044>046-201045-
/O.UPG.KDMX.WC.Y.0010.080220T0300Z-080220T1500Z/
/O.EXB.KDMX.WC.W.0003.080220T0300Z-080220T1800Z/
CRAWFORD-CARROLL-GREENE-
INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON
836 PM CST TUE FEB 19 2008

...WIND CHILL WARNING IN EFFECT UNTIL 12 PM CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND
CHILL WARNING...WHICH IS IN EFFECT UNTIL 12 PM CST WEDNESDAY. THE
WIND CHILL ADVISORY IS NO LONGER IN EFFECT. 

ARCTIC AIR WILL SURGE INTO THE REGION LATE THIS EVENING...WITH
TEMPERATURES FALLING WELL BELOW ZERO AFTER MIDNIGHT. COMBINED WITH
NORTHWEST WINDS 15 TO 30 MPH...WIND CHILL READINGS WILL DROP TO A
DANGEROUS 25 BELOW TO 35 BELOW ZERO LATE TONIGHT THROUGH
WEDNESDAY MORNING.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ004-005-015-023-024-035-201045-
/O.EXA.KDMX.BS.Y.0005.080220T0300Z-080220T1500Z/
/O.EXT.KDMX.WC.W.0003.080220T0300Z-080220T1800Z/
EMMET-KOSSUTH-PALO ALTO-POCAHONTAS-HUMBOLDT-WEBSTER-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...EMMETSBURG...
POCAHONTAS...HUMBOLDT...FORT DODGE
836 PM CST TUE FEB 19 2008

...BLOWING SNOW ADVISORY IN EFFECT UNTIL 9 AM CST WEDNESDAY...
...WIND CHILL WARNING NOW IN EFFECT UNTIL 12 PM CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A BLOWING
SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 9 AM CST WEDNESDAY. THE
WIND CHILL WARNING IS NOW IN EFFECT UNTIL 12 PM CST WEDNESDAY. 

ARCTIC AIR WILL SURGE INTO THE REGION LATE THIS EVENING...WITH
TEMPERATURES FALLING WELL BELOW ZERO AFTER MIDNIGHT. COMBINED WITH
NORTHWEST WINDS 15 TO 30 MPH...WIND CHILL READINGS WILL DROP TO
A DANGEROUS 30 BELOW TO 40 BELOW ZERO LATE TONIGHT THROUGH
WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT IN BLOWING
AND DRIFTING SNOW...WITH VISIBILITY REDUCED TO A FEW HUNDRED
FEET AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR DANGEROUS
TRAVEL...ESPECIALLY IN RURAL OR OPEN AREAS OVERNIGHT. THIS WILL
ESPECIALLY IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER THE PAST
WEEKEND.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITY WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING ...ESPECIALLY IN OPEN AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ006-007-016-017-025>028-201045-
/O.EXT.KDMX.WC.W.0003.080220T0300Z-080220T1800Z/
/O.CON.KDMX.BS.Y.0005.080220T0300Z-080220T1500Z/
WINNEBAGO-WORTH-HANCOCK-CERRO GORDO-WRIGHT-FRANKLIN-BUTLER-BREMER-
INCLUDING THE CITIES OF...FOREST CITY...NORTHWOOD...GARNER...
MASON CITY...CLARION...HAMPTON...ALLISON...WAVERLY
836 PM CST TUE FEB 19 2008

...WIND CHILL WARNING NOW IN EFFECT UNTIL 12 PM CST WEDNESDAY...
...BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

THE WIND CHILL WARNING IS NOW IN EFFECT UNTIL 12 PM CST
WEDNESDAY. A BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM
CST WEDNESDAY. 

ARCTIC AIR WILL SURGE INTO THE REGION LATE THIS EVENING...WITH
TEMPERATURES FALLING WELL BELOW ZERO AFTER MIDNIGHT. COMBINED WITH
NORTHWEST WINDS 15 TO 30 MPH...WIND CHILL READINGS WILL DROP TO
A DANGEROUS 30 BELOW TO 40 BELOW ZERO LATE TONIGHT THROUGH
WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT IN BLOWING
AND DRIFTING SNOW...WITH VISIBILITY REDUCED TO A FEW HUNDRED
FEET AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR DANGEROUS
TRAVEL...ESPECIALLY IN RURAL OR OPEN AREAS OVERNIGHT. THIS WILL
ESPECIALLY IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER THE PAST
WEEKEND.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

IAZ033-034-201045-
/O.EXT.KDMX.WC.W.0003.080220T0300Z-080220T1800Z/
SAC-CALHOUN-
INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY
836 PM CST TUE FEB 19 2008

...WIND CHILL WARNING NOW IN EFFECT UNTIL 12 PM CST WEDNESDAY...

THE WIND CHILL WARNING IS NOW IN EFFECT UNTIL 12 PM CST
WEDNESDAY. 

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS
AND SUB ZERO TEMPERATURES LATER THIS EVENING. THIS WILL RESULT IN
WIND CHILL VALUES BETWEEN 30 AND 35 BELOW ZERO OVERNIGHT TONIGHT
THROUGH WEDNESDAY MORNING.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ061-062-201045-
/O.EXT.KDMX.WC.Y.0010.080220T0300Z-080220T1800Z/
/O.CON.KDMX.BS.Y.0005.080220T0300Z-080220T1500Z/
JASPER-POWESHIEK-
INCLUDING THE CITIES OF...NEWTON...GRINNELL
836 PM CST TUE FEB 19 2008

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 12 PM CST WEDNESDAY...
...BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

THE WIND CHILL ADVISORY IS NOW IN EFFECT UNTIL 12 PM CST
WEDNESDAY. A BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM
CST WEDNESDAY. 

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS
AND SUB ZERO TEMPERATURES LATER THIS EVENING. THIS WILL RESULT IN
WIND CHILL VALUES BETWEEN 20 AND 30 BELOW ZERO OVERNIGHT TONIGHT
THROUGH WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT IN
BLOWING AND DRIFTING SNOW...WITH VISIBILITY REDUCED TO A FEW
HUNDRED FEET AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR
DANGEROUS TRAVEL...ESPECIALLY IN RURAL OR OPEN AREAS AFTER 9 PM
THIS EVENING AND FOR THE REMAINDER OF THE NIGHT TIME HOURS. THIS
WILL ESPECIALLY IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER THE
PAST WEEKEND.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING ...ESPECIALLY IN OPEN AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ074-075-085-086-096-097-201045-
/O.EXT.KDMX.WC.Y.0010.080220T0600Z-080220T1800Z/
/O.CON.KDMX.BS.Y.0005.080220T0300Z-080220T1500Z/
MARION-MAHASKA-MONROE-WAPELLO-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...KNOXVILLE...OSKALOOSA...ALBIA...
OTTUMWA...CENTERVILLE...BLOOMFIELD
836 PM CST TUE FEB 19 2008

...BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...
...WIND CHILL ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
12 PM CST WEDNESDAY...

THE WIND CHILL ADVISORY IS NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
12 PM CST WEDNESDAY. A BLOWING SNOW ADVISORY REMAINS IN EFFECT
UNTIL 9 AM CST WEDNESDAY. 

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS
AND SUB ZERO TEMPERATURES LATER THIS EVENING. THIS WILL RESULT IN
WIND CHILL VALUES BETWEEN 20 AND 30 BELOW ZERO LATE TONIGHT
THROUGH WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT IN
BLOWING AND DRIFTING SNOW...WITH VISIBILITY REDUCED TO A FEW
HUNDRED FEET AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR
DANGEROUS TRAVEL ...ESPECIALLY IN RURAL OR OPEN AREAS AFTER 9 PM
THIS EVENING AND FOR THE REMAINDER OF THE NIGHT TIME HOURS. THIS
WILL ESPECIALLY IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER THE
PAST WEEKEND.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITY WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING...ESPECIALLY IN OPEN AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ057>060-201045-
/O.EXT.KDMX.WC.Y.0010.080220T0300Z-080220T1800Z/
AUDUBON-GUTHRIE-DALLAS-POLK-
INCLUDING THE CITIES OF...AUDUBON...GUTHRIE CENTER...ADEL...
DES MOINES
836 PM CST TUE FEB 19 2008

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 12 PM CST WEDNESDAY...

THE WIND CHILL ADVISORY IS NOW IN EFFECT UNTIL 12 PM CST
WEDNESDAY. 

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS
AND SUB ZERO TEMPERATURES LATER THIS EVENING. THIS WILL RESULT IN
WIND CHILL VALUES BETWEEN 20 AND 30 BELOW ZERO LATE THIS EVENING
THROUGH WEDNESDAY MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ070>073-081>084-092>095-201045-
/O.EXT.KDMX.WC.Y.0010.080220T0600Z-080220T1800Z/
CASS-ADAIR-MADISON-WARREN-ADAMS-UNION-CLARKE-LUCAS-TAYLOR-
RINGGOLD-DECATUR-WAYNE-
INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET...
INDIANOLA...CORNING...CRESTON...OSCEOLA...CHARITON...BEDFORD...
MOUNT AYR...LEON...CORYDON
836 PM CST TUE FEB 19 2008

...WIND CHILL ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
12 PM CST WEDNESDAY...

THE WIND CHILL ADVISORY IS NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
12 PM CST WEDNESDAY. 

A STRONG ARCTIC COLD FRONT WILL USHER IN BRISK NORTHERLY WINDS
AND SUB ZERO TEMPERATURES AFTER MIDNIGHT. THIS WILL RESULT IN
WIND CHILL VALUES BETWEEN 20 AND 30 BELOW ZERO LATE TONIGHT
THROUGH WEDNESDAY MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

MOYER
000 
WWUS43 KDMX 200440
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1040 PM CST TUE FEB 19 2008

...DANGEROUS WIND CHILLS AND BLOWING SNOW TO IMPACT AREA TONIGHT
AND WEDNESDAY MORNING...

.STRONG ARCTIC HIGH PRESSURE WILL BUILD SOUTH ACROSS IOWA
OVERNIGHT. NORTH TO NORTHWEST WINDS WILL BE GUSTY AND TEMPERATURES
WILL TAKE A PRECIPITOUS TUMBLE WELL BELOW ZERO ACROSS MUCH OF THE AREA.
THE COMBINATION OF STRONG WINDS AND SUB ZERO TEMPERATURES WILL
CREATE DANGEROUS CONDITIONS OVER A LARGE PORTION OF CENTRAL IOWA
TONIGHT AND WEDNESDAY MORNING.

IAZ057-058-201245-
/O.UPG.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
/O.EXA.KDMX.WC.W.0003.000000T0000Z-080220T1800Z/
AUDUBON-GUTHRIE-
INCLUDING THE CITIES OF...AUDUBON...GUTHRIE CENTER
1040 PM CST TUE FEB 19 2008

...WIND CHILL WARNING IN EFFECT UNTIL 12 PM CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND
CHILL WARNING...WHICH IS IN EFFECT UNTIL 12 PM CST WEDNESDAY.  

NORTHERLY WINDS 15 TO 30 MPH AND SUB ZERO TEMPERATURES OVERNIGHT
WILL RESULT IN DANGEROUS WIND CHILL INDEX VALUES BETWEEN 25 BELOW AND
35 BELOW ZERO LATE TONIGHT AND WEDNESDAY MORNING.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ070-201245-
/O.UPG.KDMX.WC.Y.0010.080220T0600Z-080220T1800Z/
/O.EXA.KDMX.WC.W.0003.000000T0000Z-080220T1800Z/
CASS-
INCLUDING THE CITY OF...ATLANTIC
1040 PM CST TUE FEB 19 2008

...WIND CHILL WARNING IN EFFECT UNTIL 12 PM CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND
CHILL WARNING...WHICH IS IN EFFECT UNTIL 12 PM CST WEDNESDAY.  

NORTHERLY WINDS 15 TO 30 MPH AND SUB ZERO TEMPERATURES OVERNIGHT
WILL RESULT IN DANGEROUS WIND CHILL INDEX VALUES BETWEEN 25 BELOW AND
35 BELOW ZERO LATE TONIGHT AND WEDNESDAY MORNING.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ004>007-015>017-023>028-035>039-047>050-201245-
/O.CON.KDMX.WC.W.0003.000000T0000Z-080220T1800Z/
/O.CON.KDMX.BS.Y.0005.000000T0000Z-080220T1500Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER-
HAMILTON-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY...
NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS...
HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE...
WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES...
MARSHALLTOWN...TOLEDO
1040 PM CST TUE FEB 19 2008

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY...
...BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 12 PM CST WEDNESDAY.
A BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY. 

NORTHWEST WINDS 15 TO 30 MPH AND TEMPERATURES FALLING WELL BELOW
ZERO WILL RESULT IN DANGEROUS WIND CHILL READINGS OF 30 BELOW TO
40 BELOW ZERO THROUGH WEDNESDAY MORNING. THE STRONG WINDS WILL
ALSO RESULT IN BLOWING AND DRIFTING SNOW...WITH VISIBILITY REDUCED
TO A FEW HUNDRED FEET AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR
DANGEROUS TRAVEL...ESPECIALLY IN RURAL OR OPEN AREAS OVERNIGHT.
THIS WILL ESPECIALLY IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER
THE PAST WEEKEND.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITY WILL BE LIMITED DUE
TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS.

$$

IAZ033-034-044>046-201245-
/O.CON.KDMX.WC.W.0003.000000T0000Z-080220T1800Z/
SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-
INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...DENISON...
CARROLL...JEFFERSON
1040 PM CST TUE FEB 19 2008

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 12 PM CST WEDNESDAY.

NORTHERLY WINDS 15 TO 30 MPH AND SUB ZERO TEMPERATURES OVERNIGHT
WILL RESULT IN DANGEROUS WIND CHILL INDEX VALUES BETWEEN 30 BELOW AND
40 BELOW ZERO LATE TONIGHT AND WEDNESDAY MORNING.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ061-062-201245-
/O.CON.KDMX.BS.Y.0005.000000T0000Z-080220T1500Z/
/O.CON.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
JASPER-POWESHIEK-
INCLUDING THE CITIES OF...NEWTON...GRINNELL
1040 PM CST TUE FEB 19 2008

...BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY...

A BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 12 PM
CST WEDNESDAY. 

NORTHWEST WINDS 15 TO 30 MPH AND TEMPERATURES FALLING WELL BELOW
ZERO WILL RESULT IN WIND CHILL READINGS OF 20 BELOW TO 30 BELOW
ZERO THROUGH WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT
IN BLOWING AND DRIFTING SNOW...WITH VISIBILITY REDUCED TO A FEW
HUNDRED FEET AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR
DANGEROUS TRAVEL...ESPECIALLY IN RURAL OR OPEN AREAS OVERNIGHT.
THIS WILL ESPECIALLY IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER
THE PAST WEEKEND.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING ...ESPECIALLY IN OPEN AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ074-075-085-086-096-097-201245-
/O.CON.KDMX.BS.Y.0005.000000T0000Z-080220T1500Z/
/O.CON.KDMX.WC.Y.0010.080220T0600Z-080220T1800Z/
MARION-MAHASKA-MONROE-WAPELLO-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...KNOXVILLE...OSKALOOSA...ALBIA...
OTTUMWA...CENTERVILLE...BLOOMFIELD
1040 PM CST TUE FEB 19 2008

...BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY...

A BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 12 PM
CST WEDNESDAY. 

NORTHWEST WINDS 15 TO 30 MPH AND TEMPERATURES FALLING WELL BELOW
ZERO WILL RESULT IN WIND CHILL READINGS OF 20 BELOW TO 30 BELOW
ZERO THROUGH WEDNESDAY MORNING. THE STRONG WINDS WILL ALSO RESULT
IN BLOWING AND DRIFTING SNOW...WITH VISIBILITY REDUCED TO A FEW
HUNDRED FEET AT TIMES AT GROUND LEVEL. THIS WILL MAKE FOR
DANGEROUS TRAVEL...ESPECIALLY IN RURAL OR OPEN AREAS OVERNIGHT.
THIS WILL ESPECIALLY IMPACT AREAS WHERE SIGNIFICANT SNOW FELL OVER
THE PAST WEEKEND.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITY WILL BE LIMITED DUE
TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ059-060-201245-
/O.CON.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
DALLAS-POLK-
INCLUDING THE CITIES OF...ADEL...DES MOINES
1040 PM CST TUE FEB 19 2008

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY. 

NORTHERLY WINDS 15 TO 30 MPH AND SUB ZERO TEMPERATURES OVERNIGHT
WILL RESULT IN WIND CHILL INDEX VALUES BETWEEN 20 BELOW AND 30
BELOW ZERO LATE TONIGHT AND WEDNESDAY MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ071>073-081>084-092>095-201245-
/O.CON.KDMX.WC.Y.0010.080220T0600Z-080220T1800Z/
ADAIR-MADISON-WARREN-ADAMS-UNION-CLARKE-LUCAS-TAYLOR-RINGGOLD-
DECATUR-WAYNE-
INCLUDING THE CITIES OF...GREENFIELD...WINTERSET...INDIANOLA...
CORNING...CRESTON...OSCEOLA...CHARITON...BEDFORD...MOUNT AYR...
LEON...CORYDON
1040 PM CST TUE FEB 19 2008

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY. 

NORTHERLY WINDS 15 TO 30 MPH AND SUB ZERO TEMPERATURES OVERNIGHT
WILL RESULT IN WIND CHILL INDEX VALUES BETWEEN 20 BELOW AND 30
BELOW ZERO LATE TONIGHT AND WEDNESDAY MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

MOYER
000 
WWUS43 KDMX 200947
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
347 AM CST WED FEB 20 2008

...DANGEROUS WIND CHILLS AND BLOWING SNOW WILL CONTINUE TO IMPACT THE
AREA THIS MORNING...

.A STRONG ARCTIC COLD FRONT SWEPT ACROSS IOWA OVERNIGHT AND
BROUGHT GUSTY NORTHWEST WINDS AND RAPIDLY FALLING TEMPERATURES TO
THE STATE. THE COMBINATION OF STRONG WINDS AND SUB ZERO
TEMPERATURES WILL CREATE DANGEROUS CONDITIONS OVER CENTRAL IOWA
THIS MORNING.

IAZ004>007-015>017-023>028-035>039-047>050-201800-
/O.EXT.KDMX.BS.Y.0005.000000T0000Z-080220T1200Z/
/O.CON.KDMX.WC.W.0003.000000T0000Z-080220T1800Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER-
HAMILTON-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY...
NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS...
HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE...
WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES...
MARSHALLTOWN...TOLEDO
347 AM CST WED FEB 20 2008

...BLOWING SNOW ADVISORY NOW IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...
...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

NORTHWEST WINDS OF 15 TO 30 MPH AND TEMPERATURES WELL BELOW ZERO
WILL RESULT IN DANGEROUS WIND CHILL READINGS OF 30 TO 40 BELOW
ZERO. THE STRONG WINDS WILL ALSO RESULT IN BLOWING AND DRIFTING
SNOW...WITH VISIBILITY REDUCED TO A FEW HUNDRED FEET AT TIMES AT
GROUND LEVEL. THIS WILL MAKE FOR DANGEROUS TRAVEL...ESPECIALLY IN
RURAL OR OPEN AREAS EARLY THIS MORNING.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITY WILL BE LIMITED DUE
TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS.

$$

IAZ033-034-044>046-057-058-070-201800-
/O.CON.KDMX.WC.W.0003.000000T0000Z-080220T1800Z/
SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE-CASS-
INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...DENISON...
CARROLL...JEFFERSON...AUDUBON...GUTHRIE CENTER...ATLANTIC
347 AM CST WED FEB 20 2008

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

NORTHERLY WINDS OF 15 TO 30 MPH COMBINED WITH TEMPERATURES WELL
BELOW ZERO WILL RESULT IN DANGEROUS WIND CHILL VALUES BETWEEN 30
AND 40 BELOW ZERO THIS MORNING.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ061-062-201800-
/O.EXT.KDMX.BS.Y.0005.000000T0000Z-080220T1200Z/
/O.CON.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
JASPER-POWESHIEK-
INCLUDING THE CITIES OF...NEWTON...GRINNELL
347 AM CST WED FEB 20 2008

...BLOWING SNOW ADVISORY NOW IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

NORTHWEST WINDS OF 15 TO 30 MPH AND TEMPERATURES WELL BELOW ZERO
WILL RESULT IN DANGEROUS WIND CHILL READINGS OF 20 TO 30 BELOW
ZERO. THE GUSTY WINDS WILL ALSO RESULT IN BLOWING AND DRIFTING
SNOW...WITH VISIBILITY REDUCED TO A FEW HUNDRED FEET AT TIMES AT
GROUND LEVEL. THIS WILL MAKE FOR DANGEROUS TRAVEL...ESPECIALLY IN
RURAL OR OPEN AREAS EARLY THIS MORNING.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING ...ESPECIALLY IN OPEN AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ074-075-085-086-096-097-201800-
/O.EXT.KDMX.BS.Y.0005.000000T0000Z-080220T1200Z/
/O.CON.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
MARION-MAHASKA-MONROE-WAPELLO-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...KNOXVILLE...OSKALOOSA...ALBIA...
OTTUMWA...CENTERVILLE...BLOOMFIELD
347 AM CST WED FEB 20 2008

...BLOWING SNOW ADVISORY NOW IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

NORTHWEST WINDS OF 15 TO 30 MPH AND TEMPERATURES WELL BELOW ZERO
WILL RESULT IN DANGEROUS WIND CHILL READINGS OF 20 TO 30 BELOW
ZERO. THE STRONG WINDS WILL ALSO RESULT IN BLOWING AND DRIFTING
SNOW...WITH VISIBILITY REDUCED TO A FEW HUNDRED FEET AT TIMES AT
GROUND LEVEL. THIS WILL MAKE FOR DANGEROUS TRAVEL...ESPECIALLY IN
RURAL OR OPEN AREAS EARLY THIS MORNING.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITY WILL BE LIMITED DUE
TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...
 ESPECIALLY IN OPEN AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ059-060-201800-
/O.CON.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
DALLAS-POLK-
INCLUDING THE CITIES OF...ADEL...DES MOINES
347 AM CST WED FEB 20 2008

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

NORTHWEST WINDS OF 15 TO 30 MPH COMBINED WITH TEMPERATURES BELOW
ZERO THIS MORNING WILL RESULT IN WIND CHILL VALUES BETWEEN 20
AND 30 BELOW ZERO.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ071>073-081>084-092>095-201800-
/O.CON.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
ADAIR-MADISON-WARREN-ADAMS-UNION-CLARKE-LUCAS-TAYLOR-RINGGOLD-
DECATUR-WAYNE-
INCLUDING THE CITIES OF...GREENFIELD...WINTERSET...INDIANOLA...
CORNING...CRESTON...OSCEOLA...CHARITON...BEDFORD...MOUNT AYR...
LEON...CORYDON
347 AM CST WED FEB 20 2008

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

NORTHWEST WINDS OF 15 TO 30 MPH COMBINED WITH TEMPERATURES BELOW
ZERO THIS MORNING WILL RESULT IN WIND CHILL VALUES BETWEEN 20
AND 30 BELOW ZERO.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

DONAVON
000 
WWUS43 KDMX 201210
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
610 AM CST WED FEB 20 2008

...DANGEROUS WIND CHILLS AND BLOWING SNOW WILL CONTINUE TO IMPACT
THE AREA THIS MORNING...

.A STRONG ARCTIC COLD FRONT SWEPT ACROSS IOWA OVERNIGHT AND
BROUGHT GUSTY NORTHWEST WINDS AND RAPIDLY FALLING TEMPERATURES TO
THE STATE. THE WINDS HAVE SINCE DIMINISHED HOWEVER STILL RANGE
FROM 10 TO 20 MPH AND THIS COMBINED WITH SUB ZERO TEMPERATURES
WILL CREATE DANGEROUS CONDITIONS OVER CENTRAL IOWA THIS MORNING.

IAZ004>007-015>017-023>028-035>039-047>050-201800-
/O.EXP.KDMX.BS.Y.0005.000000T0000Z-080220T1200Z/
/O.CON.KDMX.WC.W.0003.000000T0000Z-080220T1800Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER-
HAMILTON-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY...
NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS...
HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE...
WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES...
MARSHALLTOWN...TOLEDO
610 AM CST WED FEB 20 2008

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...BLOWING SNOW ADVISORY HAS EXPIRED...

THE BLOWING SNOW ADVISORY IS NO LONGER IN EFFECT. A WIND CHILL
WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY.

DANGEROUS WIND CHILLS OF 30 TO 40 BELOW ZERO CAN BE EXPECTED TO
CONTINUE THIS MORNING. 

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ061-062-201800-
/O.EXP.KDMX.BS.Y.0005.000000T0000Z-080220T1200Z/
/O.CON.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
JASPER-POWESHIEK-
INCLUDING THE CITIES OF...NEWTON...GRINNELL
610 AM CST WED FEB 20 2008

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...
...BLOWING SNOW ADVISORY HAS EXPIRED...

THE BLOWING SNOW ADVISORY IS NO LONGER IN EFFECT. A WIND CHILL
ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

DANGEROUS WIND CHILLS OF 20 TO 30 BELOW ZERO CAN BE EXPECTED TO
CONTINUE THIS MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ074-075-085-086-096-097-201800-
/O.EXP.KDMX.BS.Y.0005.000000T0000Z-080220T1200Z/
/O.CON.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
MARION-MAHASKA-MONROE-WAPELLO-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...KNOXVILLE...OSKALOOSA...ALBIA...
OTTUMWA...CENTERVILLE...BLOOMFIELD
610 AM CST WED FEB 20 2008

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...
...BLOWING SNOW ADVISORY HAS EXPIRED...

THE BLOWING SNOW ADVISORY IS NO LONGER IN EFFECT. A WIND CHILL
ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

DANGEROUS WIND CHILLS OF 20 TO 30 BELOW ZERO CAN BE EXPECTED TO
CONTINUE THIS MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ033-034-044>046-057-058-070-201800-
/O.CON.KDMX.WC.W.0003.000000T0000Z-080220T1800Z/
SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE-CASS-
INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...DENISON...
CARROLL...JEFFERSON...AUDUBON...GUTHRIE CENTER...ATLANTIC
610 AM CST WED FEB 20 2008

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY. 

DANGEROUS WIND CHILLS OF 30 TO 40 BELOW ZERO CAN BE EXPECTED TO
CONTINUE THIS MORNING.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ059-060-201800-
/O.CON.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
DALLAS-POLK-
INCLUDING THE CITIES OF...ADEL...DES MOINES
610 AM CST WED FEB 20 2008

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

DANGEROUS WIND CHILLS OF 20 TO 30 BELOW ZERO CAN BE EXPECTED TO
CONTINUE THIS MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$

IAZ071>073-081>084-092>095-201800-
/O.CON.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
ADAIR-MADISON-WARREN-ADAMS-UNION-CLARKE-LUCAS-TAYLOR-RINGGOLD-
DECATUR-WAYNE-
INCLUDING THE CITIES OF...GREENFIELD...WINTERSET...INDIANOLA...
CORNING...CRESTON...OSCEOLA...CHARITON...BEDFORD...MOUNT AYR...
LEON...CORYDON
610 AM CST WED FEB 20 2008

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY.

DANGEROUS WIND CHILLS OF 20 TO 30 BELOW ZERO CAN BE EXPECTED TO
CONTINUE THIS MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
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.

$$
000 
WWUS43 KDMX 201741
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1141 AM CST WED FEB 20 2008

...CONDITIONS IMPROVING THIS AFTERNOON...

THE BITING WIND AND BITTER WIND CHILLS ARE IMPROVING LATE THIS MORNING.
THOUGH COLD WEATHER IS EXPECTED TO LINGER TODAY...THE WIND WILL
REMAIN LIGHT THIS AFTERNOON AS A RIDGE OF HIGH PRESSURE DRIFTS ACROSS
THE STATE. THEREFORE...THE WARNING AND ADVISORIES WILL BE ALLOWED
TO EXPIRE AT NOON.

IAZ004>007-015>017-023>028-033>039-044>050-057-058-070-201845-
/O.EXP.KDMX.WC.W.0003.000000T0000Z-080220T1800Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-CASS-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY...
NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS...
HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY...
ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA...
GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON...
BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER...
ATLANTIC
1141 AM CST WED FEB 20 2008

...WIND CHILL WARNING WILL EXPIRE AT NOON CST TODAY...

THE WIND CHILL WARNING WILL EXPIRE AT NOON CST TODAY. 

THE WIND HAS SETTLED DOWN AND CONDITIONS ARE SLOWLY IMPROVING.
PERSONS WHO MUST BE OUTSIDE ARE STILL URGED TO TAKE PRECAUTION
AGAINST OVEREXPOSURE TO THE COLD AIR TEMPERATURES EXPECTED TODAY.

$$

IAZ059>062-201845-
/O.EXP.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
DALLAS-POLK-JASPER-POWESHIEK-
INCLUDING THE CITIES OF...ADEL...DES MOINES...NEWTON...GRINNELL
1141 AM CST WED FEB 20 2008

...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY...

THE WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY. 

THE WIND HAS SETTLED DOWN AND CONDITIONS ARE SLOWLY IMPROVING.
PERSONS WHO MUST BE OUTSIDE ARE STILL URGED TO TAKE PRECAUTION
AGAINST OVEREXPOSURE TO THE COLD AIR TEMPERATURES EXPECTED TODAY. 

$$

IAZ071>075-081>086-092>097-201845-
/O.EXP.KDMX.WC.Y.0010.000000T0000Z-080220T1800Z/
ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-
MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...GREENFIELD...WINTERSET...INDIANOLA...
KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...
ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...
CENTERVILLE...BLOOMFIELD
1141 AM CST WED FEB 20 2008

...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY...

THE WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY. 

THE WIND HAS SETTLED DOWN AND CONDITIONS ARE SLOWLY IMPROVING.
PERSONS WHO MUST BE OUTSIDE ARE STILL URGED TO TAKE PRECAUTION
AGAINST OVEREXPOSURE TO THE COLD AIR TEMPERATURES EXPECTED TODAY.

$$

REV

What forecasters said that day

The local office's own words before this wind chill 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 wind chill warning went out at Feb 19, 12:29 PM CST, 3 hours 14 minutes earlier.

Area forecast discussion, Feb 19, 12:29 PM CST, 3 hours 14 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE DES MOINES IA
1229 PM CST TUE FEB 19 2008

...UPDATED PUBLIC DISCUSSION.

.DISCUSSION...
SATURATION TAKING A BIT LONGER TO OCCUR AND HAVE PUSHED BACK START
TIME OF LIGHT SNOW A FEW HOURS INTO THE LATE AFTERNOON. STILL
LOOKING AT LIGHT SNOW EVENT WITH SOME WAA AND FORCING CROSSING THE
STATE. ARCTIC BOUNDARY DOWN TO ABOUT ST. CLOUD MN ATTM WITH STRONG
PUSH OF COLD AIR HEADING SOUTH FOR TNT. WITH AFTERNOON PACKAGE WILL
BE LEANING TOWARD A WC.W FOR THE FAR NORTH AND WC.Y FOR REMAINDER OF
THE AREA THROUGH 18Z WED. ALSO...WINDS WILL CONTINUE TO CAUSE
BLOWING SNOW OVER THE EASTERN PORTION OF THE FORECAST AREA AND WILL
MORE THAN LIKELY BE ADDING A BS.Y FOR AREAS EAST OF I35 THROUGH
ABOUT 9 AM WED CONSIDERING WIND SITUATION EXPECTED FOR MOST OF THE
NIGHT AND CONDITIONS ENCOUNTERED ACROSS THE REGION MON AFTERNOON./REV

PREVIOUS DISCUSSION...
SURFACE HIGH PRESSURE WILL SLIDE EAST THIS MORNING AHEAD OF A
CLIPPER SYSTEM THAT WILL BRING A QUICK SHOT OF SNOW. A WIND CHILL
ADVISORY CONTINUES UNTIL 6 AM THIS MORNING. CURRENT WIND CHILL
VALUES ARE BORDERLINE...BUT WILL LEAVE HEADLINES IN PLACE. SOUTHWEST
WINDS WILL ALLOW TEMPERATURES TO REBOUND INTO THE 20S ACROSS
SOUTHWEST SECTIONS TODAY. AFTERNOON SNOW AND CLOUDS WILL HOLD
READINGS DOWN IN THE TEENS NORTHWEST. SHORT RANGE MODELS ARE STILL
FAVORING THE NORTHEAST HALF OF THE FORECAST AREA FOR THE HIGHER QPF
AMOUNTS UP TO 0.05 INCHES. MOST LOCATIONS CAN EXPECT A LIGHT DUSTING
TO AROUND AN INCH...WITH ISOLATED TWO INCH AMOUNTS NOT OUT OF THE
QUESTION NORTHEAST. AN INCREASING NORTHWEST WIND TONIGHT WILL LIKELY
CREATE MORE PROBLEMS WITH SNOW DRIFTING ACROSS AND FREEZING ON
ROADWAYS. REDUCED VISIBILITIES IN BLOWING SNOW ARE ALSO POSSIBLE.
STRONG CAA WILL PLUNGE TEMPERATURES BELOW ZERO OVERNIGHT...AND A
SUSTAINED WIND OF 15 TO 25 MPH WILL PRODUCE WIND CHILL VALUES AROUND
20 BELOW SOUTH TO 30 BELOW NORTH. WILL LET DAY SHIFT FINE TUNE
DETAILS...INCLUDING CONSIDERATION OF WIND CHILL WARNING. THE ARCTIC
HIGH WILL SETTLE ACROSS IOWA ON WEDNESDAY WITH CONTINUED BITTERLY
COLD CONDITIONS. ATTENTION THEN TURNS TO THE SNOW POTENTIAL FOR
THURSDAY. MODEL CONSENSUS IS WEAK CONCERNING THE TIMING AND
AMPLITUDE OF THE UPPER LEVEL TROUGH. BUT FOR NOW IT APPEARS THERE IS
ENOUGH SUPPORT FROM THE GFS/GFSENS/ECMWF/GEM TO INCREASE AND EXPAND
COVERAGE OF CHC POPS...ESPECIALLY DURING THE DAY THURSDAY.
MODERATING TEMPS ARE STILL EXPECTED IN THE EXTENDED PERIOD WITH
MONDAY STILL FAVORED FOR THE ARRIVAL OF THE NEXT STORM.

&&

.AVIATION...19/18Z
UPPER LEVEL SYSTEM CONTINUES TO DROP SOUTH OUT OF THE NORTHERN
PLAINS AND WILL BRING CEILINGS LOWERING TO MVFR FOR A BRIEF PERIOD
AFT 20Z THIS AFTERNOON THROUGH APPROXIMATELY 01Z WITH A CHANCE OF
SNOW WITH MAINLY MVFR VISIBILITIES BUT A PERIOD OF IFR ALSO
POSSIBLE...ESPECIALLY NORTH. A COLD FRONT WILL SWEEP THROUGH LATE
AFTERNOON AND EARLY EVENING BRINGING GUSTY NORTHWEST WINDS BACK TO
THE STATE. SOME BLOWING SNOW POSSIBLE OVERNIGHT AND HAVE INCLUDED
MENTION ACROSS THE NORTHEAST TAF SITES OF KALO AND KMCW. POSSIBLE
BLOWING SNOW AT KOTM AS WELL AFT 06Z. WINDS WILL BE ISSUE WITH GUSTS
IN THE 25 TO 30 KT RANGE THIS EVENING AND OVN./REV

&&

.DMX WATCHES/WARNINGS/ADVISORIES...NONE

&&

SHORT TERM/AVIATION...REV
LONG TERM...KINNEY
Hazardous weather outlook, Feb 19, 5:35 AM CST, 10 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
535 AM CST TUE FEB 19 2008

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-201200-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-
POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-
CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-
APPANOOSE-DAVIS-
535 AM CST TUE FEB 19 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...TODAY AND TONIGHT

BLOWING AND DRIFTING SNOW IS EXPECTED THIS EVENING...MAINLY IN
OPEN AREAS EAST OF HIGHWAY 169...AND NORTH OF INTERSTATE 80.
VERY SLICK ROAD CONDITIONS ARE EXPECTED AS SNOW DRIFTS ACROSS AND
FREEZES ON ROADWAYS. VISIBILITIES WILL ALSO DROP BELOW ONE MILE
AT TIMES IN BLOWING SNOW.

TEMPERATURES WILL FALL BELOW ZERO TONIGHT AND COMBINE WITH A
STRONG NORTHWEST WIND TO PRODUCE DANGEROUS WIND CHILL VALUES. WIND
CHILLS WILL RANGE FROM 20 BELOW ZERO IN SOUTHERN IOWA...TO 30 TO
35 BELOW IN THE NORTH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

WIND CHILL VALUES OF 20 TO 35 BELOW ZERO WILL LINGER EARLY
WEDNESDAY MORNING...BEFORE GRADUALLY IMPROVING FROM LATE MORNING ON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED...ALTHOUGH REPORTS OF
SNOWFALL AMOUNTS...AND BLOWING AND DRIFTING SNOW ARE ENCOURAGED.

KINNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 19, 3:43 PM CSTBlowing Snow AdvisoryDMXAppanoose, Black Hawk, Boone, Bremer, Butler, Cerro Gordo and 24 more14 hr
Feb 19, 3:43 PM CSTWind Chill AdvisoryDMXAdair, Adams, Appanoose, Audubon, Black Hawk, Boone and 29 more20 hr

Nearby

Wind Chill Warnings in Iowa, 2008Every wind chill warning in 2008

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.