Alert archive / Iowa / Winter Storm Warnings in 2008

Winter Storm Warning 1, NWS Des Moines, IA

February 5, 200830 counties in Iowa

NWS Des Moines, IA issued this winter storm warning at Feb 5, 2008, 3:58 AM CST for 30 counties in Iowa. It took effect at Feb 5, 2008, 12:00 PM CST. It was in force for 24 hr. 60 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 5, 2008, 3:58 AM CST (09:58 UTC)
In effect from
Feb 5, 2008, 12:00 PM CST
Expired
Feb 6, 2008, 11:59 AM CST
In force
24 hr
Issued by
NWS Des Moines, IA
All 30 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Cass County, IA, Clarke County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Grundy County, IA, Hardin County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA

The radar

The Des Moines radar (KDMX), 41 km from the middle of the area, began a volume at 10:02 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 5, 12:10 PM CSTSNOW 0.5Ottumwa, IATRACE OF ICE ACCUMULATION WITH MIX OF FREEZING RAIN AND SNOW.
Feb 5, 12:56 PM CSTSNOW 1.1West Des Moines, IA
Feb 5, 1:17 PM CSTSNOW 1.52 Ne Davis City, IAMIXED WITH SLEET AND FREEZING RAIN
Feb 5, 1:18 PM CSTSNOW 2Osceola, IAESTIMATED 2 INCHES IN EASTERN OSCEOLA...AND AROUND 1 INCH IN WESTERN OSCEOLA.
Feb 5, 1:21 PM CSTSNOW 3Corydon, IA
Feb 5, 1:32 PM CSTSNOW 12 Ene Ames Airport, IAONE INCH AT INTERSTATE 35 AND HIGHWAY 30 IN AMES.
Feb 5, 1:54 PM CSTSNOW 1.7Johnston, IA1.7 INCHES OF NEW SNOW MEASURED SINCE ABOUT 10 AM CST.
Feb 5, 2:35 PM CSTSNOW 2.7Albia, IA
Feb 5, 2:45 PM CSTSNOW 1.91 N Grimes, IA
Feb 5, 3:06 PM CSTSNOW 24 N Grimes, IA
Feb 5, 4:24 PM CSTSNOW 1.8Dallas Center, IA
Feb 5, 4:32 PM CSTSNOW 1Cedar Falls, IAREPORTED BY KWWL. SNOW BEGAN AT 1230 PM
Feb 5, 4:56 PM CSTSNOW 1.7Cumberland, IA
Feb 5, 5:00 PM CSTSNOW 2.5Adel, IA
Feb 5, 5:35 PM CSTSNOW 2.5Winterset, IA
Feb 5, 5:37 PM CSTSNOW 2Corning, IA
Feb 5, 5:39 PM CSTSNOW 2.5Bedford, IA
Feb 5, 5:52 PM CSTSNOW 3Johnston, IAAT NWS OFFICE.
Feb 5, 5:52 PM CSTSNOW 3.5Des Moines, IAAT DES MOINES INTERNATIONAL AIRPORT.
Feb 5, 6:02 PM CSTSNOW 2.43 Nne Ames, IAMEASURED BY ISU METEOROLOGY PROFESSOR
Feb 5, 6:02 PM CSTSNOW 2.7Des Moines, IAMEASURED AT KCCI STUDIOS
Feb 5, 6:25 PM CSTSNOW 1.5Boone, IA
Feb 5, 6:34 PM CSTSNOW 3Greenfield, IA
Feb 5, 6:35 PM CSTSNOW 2.2Boone, IA
Feb 5, 6:35 PM CSTSNOW 2.5Creston, IA
Feb 5, 6:36 PM CSTSNOW 2Mount Ayr, IA
Feb 5, 6:36 PM CSTSNOW 2Osceola, IA
Feb 5, 6:40 PM CSTSNOW 2.2Ottumwa, IA
Feb 5, 6:48 PM CSTSNOW 3Des Moines, IAAT WHO TV STUDIO DOWNTOWN DES MOINES.
Feb 5, 6:48 PM CSTSNOW 3.5Johnston, IAAT NWS OFFICE.
Feb 5, 7:33 PM CSTSNOW 2Lamoni, IA
Feb 5, 7:42 PM CSTSNOW 4Indianola, IACONSIDERABLE BLOWING SNOW
Feb 5, 7:45 PM CSTSNOW 3Knoxville, IA
Feb 5, 7:45 PM CSTSNOW 3Newton, IA
Feb 5, 7:45 PM CSTSNOW 4Marshalltown, IA
Feb 5, 7:49 PM CSTSNOW 4Toledo, IA
Feb 5, 7:52 PM CSTSNOW 3.5Grundy Center, IA
Feb 5, 7:53 PM CSTSNOW 1Waterloo, IA
Feb 5, 8:25 PM CSTSNOW 4.3Grimes, IA
Feb 5, 8:30 PM CSTSNOW 35 N La Porte City, IAFROM KWWL TV.
Feb 5, 8:30 PM CSTSNOW 3.4Des Moines, IAAT KCCI TV STUDIO DOWNTOWN DES MOINES.
Feb 5, 8:50 PM CSTSNOW 3.2Des Moines, IAAT WHO TV STUDIO DOWNTOWN DES MOINES.
Feb 5, 8:50 PM CSTSNOW 4La Porte City, IAVIA KGAN TV.
Feb 5, 9:26 PM CSTSNOW 4Urbandale, IA
Feb 5, 9:30 PM CSTSNOW 34 N Grimes, IA
Feb 5, 9:47 PM CSTSNOW 3Adel, IA
Feb 5, 10:00 PM CSTSNOW 3.6Johnston, IAAT NWS OFFICE.
Feb 5, 11:43 PM CSTSNOW 3Ottumwa, IA
Feb 6, 1:07 AM CSTSNOW 2.5Ames, IA
Feb 6, 3:36 AM CSTSNOW 6.52 N Des Moines, IAHAS HAD 1.5 TO 2 INCHES SINCE MIDNIGHT
Feb 6, 4:15 AM CSTSNOW 3Chariton, IA
Feb 6, 4:15 AM CSTSNOW 7Leon, IA
Feb 6, 4:15 AM CSTSNOW 7.52 S Des Moines, IA
Feb 6, 4:15 AM CSTSNOW 10.5Pleasantville, IA
Feb 6, 4:38 AM CSTSNOW 8West Des Moines, IA
Feb 6, 5:28 AM CSTHEAVY SNOW 8N Humeston, IA
Feb 6, 5:37 AM CSTSNOW 7.7Des Moines Int Airport, IA
Feb 6, 5:37 AM CSTSNOW 10.5Oskaloosa, IA
Feb 6, 5:53 AM CSTHEAVY SNOW 7.5Adel, IA
Feb 6, 5:56 AM CSTSNOW 8.28 N Chariton, IA

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

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 10.0 hours before the alert went out and 243 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, Davenport, at 00:00Z on 2008-02-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2008-02-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
441 m above ground
0-6 km bulk shear
87 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
111 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 050958
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
358 AM CST TUE FEB 5 2008

...HEAVY SNOW HEADING FOR IOWA THIS AFTERNOON AND TONIGHT...

.A STORM SYSTEM DEVELOPING OVER THE SOUTHERN ROCKIES WILL MOVE
THROUGH THE TEXAS PANHANDLE TODAY...THE TURN NORTHEAST INTO
MISSOURI BY THIS EVENING. THE LOW WILL CONTINUE TO INDIANA BY
WEDNESDAY MORNING. THIS TRACK WILL BRING ANOTHER ROUND OF HEAVY
SNOW TO THE SOUTHEAST HALF OF IOWA.

IAZ028-037>039-047>050-059>062-071>075-081>086-092>097-051800-
/O.UPG.KDMX.WS.A.0002.080205T1500Z-080206T1500Z/
/O.NEW.KDMX.WS.W.0001.080205T1800Z-080206T1800Z/
BREMER-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-DALLAS-
POLK-JASPER-POWESHIEK-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-
UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-
APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...WAVERLY...ELDORA...GRUNDY CENTER...
WATERLOO...BOONE...AMES...MARSHALLTOWN...TOLEDO...ADEL...
DES MOINES...NEWTON...GRINNELL...GREENFIELD...WINTERSET...
INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...
CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
358 AM CST TUE FEB 5 2008

...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 12 PM CST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 12 PM CST
WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

LIGHT SNOW WILL SPREAD INTO WESTERN IOWA THIS MORNING...WITH LIGHT
TO MODERATE SNOW OVERSPREADING THE SOUTH HALF THIS AFTERNOON.
SLEET MAY BE MIXED WITH THE SNOW INITIALLY OVER THE SOUTH CENTRAL
AND SOUTHEAST COUNTIES...BEFORE CHANGING TO ALL SNOW BY EVENING. EXPECT
PERIODS OF HEAVY SNOW FROM LATE TUESDAY AFTERNOON THROUGH TUESDAY
NIGHT...BEFORE THE SNOW TAPERS OFF WEDNESDAY MORNING. ISOLATED
THUNDER MAY ALSO OCCUR WITH THE SNOW.  THE HEAVIEST SNOWFALL WILL
BE SOUTHEAST OF A LINE FROM MT AYR TO MONTEZUMA...WHERE 10 TO 12
INCHES CAN BE EXPECTED. THUNDERSTORMS COULD RESULT IN LOCAL
AMOUNTS IN EXCESS OF A FOOT.  NORTHWEST OF THAT...AND SOUTHEAST OF
A LINE FROM SOUTH OF ATLANTIC TO WAVERLY 6 TO 10 INCHES IS
EXPECTED. AN INCREASING NORTHERLY WIND WILL ALSO CREATE BLOWING
AND DRIFTING SNOW LATE THIS AFTERNOON INTO EARLY
WEDNESDAY...ADDING TO THE TRAVEL HAZARD. MONITOR NOAA WEATHER
RADIO AND LOCAL MEDIA FOR LATER UPDATES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IAZ046-057-058-070-051800-
/O.UPG.KDMX.WS.A.0002.080205T1500Z-080206T1500Z/
/O.NEW.KDMX.SB.Y.0002.080205T1800Z-080206T1800Z/
GREENE-AUDUBON-GUTHRIE-CASS-
INCLUDING THE CITIES OF...JEFFERSON...AUDUBON...GUTHRIE CENTER...
ATLANTIC
358 AM CST TUE FEB 5 2008

...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM NOON TODAY TO
12 PM CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO
12 PM CST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT. 

LIGHT SNOW WILL MOVE INTO WESTERN IOWA THIS MORNING...AND SPREAD
EAST THIS AFTERNOON. OCCASIONAL PERIODS OF MODERATE SNOW ARE
LIKELY THIS EVENING INTO THE EARLY MORNING HOURS. SNOWFALL TONIGHT
INTO EARLY WEDNESDAY IS EXPECTED TO BE IN THE 3 TO 6 INCH RANGE
ACROSS THE ADVISORY AREA. AN INCREASING NORTHERLY WIND WILL ALSO
CREATE BLOWING AND DRIFTING SNOW LATE TUESDAY AFTERNOON AND
NIGHT...ADDING TO THE TRAVEL HAZARD. MONITOR NOAA WEATHER RADIO
AND LOCAL MEDIA FOR LATER UPDATES.

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

$$

IAZ025>027-035-036-044-045-051800-
/O.NEW.KDMX.SB.Y.0002.080205T1800Z-080206T1800Z/
WRIGHT-FRANKLIN-BUTLER-WEBSTER-HAMILTON-CRAWFORD-CARROLL-
INCLUDING THE CITIES OF...CLARION...HAMPTON...ALLISON...
FORT DODGE...WEBSTER CITY...DENISON...CARROLL
358 AM CST TUE FEB 5 2008

...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM NOON TODAY TO
12 PM CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO
12 PM CST WEDNESDAY. 

LIGHT SNOW WILL MOVE INTO WESTERN IOWA THIS MORNING...AND SPREAD
EAST THIS AFTERNOON. OCCASIONAL PERIODS OF MODERATE SNOW ARE
LIKELY THIS EVENING INTO THE EARLY MORNING HOURS. SNOWFALL TONIGHT
INTO EARLY WEDNESDAY IS EXPECTED TO BE IN THE 3 TO 6 INCH RANGE
ACROSS THE ADVISORY AREA. AN INCREASING NORTHERLY WIND WILL ALSO
CREATE BLOWING AND DRIFTING SNOW LATE TUESDAY AFTERNOON AND
NIGHT...ADDING TO THE TRAVEL HAZARD. MONITOR NOAA WEATHER RADIO
AND LOCAL MEDIA FOR LATER UPDATES.

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

$$
6 follow-up statements
000 
WWUS43 KDMX 051136
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
536 AM CST TUE FEB 5 2008

...HEAVY SNOW HEADING FOR IOWA THIS AFTERNOON AND TONIGHT...

.A STORM SYSTEM DEVELOPING OVER THE SOUTHERN ROCKIES WILL MOVE
THROUGH THE TEXAS PANHANDLE TODAY...THE TURN NORTHEAST INTO
MISSOURI BY THIS EVENING. THE LOW WILL CONTINUE TO INDIANA BY
WEDNESDAY MORNING. THIS TRACK WILL BRING ANOTHER ROUND OF HEAVY
SNOW TO THE SOUTHEAST HALF OF IOWA.

IAZ028-037>039-047>050-059>062-071>075-081>086-092>097-051945-
/O.CON.KDMX.WS.W.0001.080205T1800Z-080206T1800Z/
BREMER-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-DALLAS-
POLK-JASPER-POWESHIEK-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-
UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-
APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...WAVERLY...ELDORA...GRUNDY CENTER...
WATERLOO...BOONE...AMES...MARSHALLTOWN...TOLEDO...ADEL...
DES MOINES...NEWTON...GRINNELL...GREENFIELD...WINTERSET...
INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...
CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
536 AM CST TUE FEB 5 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO
12 PM CST WEDNESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 12 PM
CST WEDNESDAY. 

LIGHT SNOW WILL SPREAD INTO WESTERN IOWA THIS MORNING...WITH
LIGHT TO MODERATE SNOW OVERSPREADING THE SOUTH HALF THIS
AFTERNOON. SLEET MAY BE MIXED WITH THE SNOW INITIALLY OVER THE
SOUTH CENTRAL AND SOUTHEAST COUNTIES...BEFORE CHANGING TO ALL
SNOW BY EVENING. EXPECT PERIODS OF HEAVY SNOW FROM LATE TUESDAY
AFTERNOON THROUGH TUESDAY NIGHT...BEFORE THE SNOW TAPERS OFF
WEDNESDAY MORNING. ISOLATED THUNDER MAY ALSO OCCUR WITH THE SNOW.
 THE HEAVIEST SNOWFALL WILL BE SOUTHEAST OF A LINE FROM MT AYR TO
MONTEZUMA...WHERE 10 TO 12 INCHES CAN BE EXPECTED. THUNDERSTORMS
COULD RESULT IN LOCAL AMOUNTS IN EXCESS OF A FOOT.  NORTHWEST OF
THAT...AND SOUTHEAST OF A LINE FROM SOUTH OF ATLANTIC TO WAVERLY
6 TO 10 INCHES IS EXPECTED. AN INCREASING NORTHERLY WIND WILL
ALSO CREATE BLOWING AND DRIFTING SNOW LATE THIS AFTERNOON INTO
EARLY WEDNESDAY...ADDING TO THE TRAVEL HAZARD. MONITOR NOAA
WEATHER RADIO AND LOCAL MEDIA FOR LATER UPDATES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IAZ025>027-035-036-044>046-057-058-070-051945-
/O.CON.KDMX.SB.Y.0002.080205T1800Z-080206T1800Z/
WRIGHT-FRANKLIN-BUTLER-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-
AUDUBON-GUTHRIE-CASS-
INCLUDING THE CITIES OF...CLARION...HAMPTON...ALLISON...
FORT DODGE...WEBSTER CITY...DENISON...CARROLL...JEFFERSON...
AUDUBON...GUTHRIE CENTER...ATLANTIC
536 AM CST TUE FEB 5 2008

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT FROM NOON
TODAY TO 12 PM CST WEDNESDAY...

A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT FROM NOON
TODAY TO 12 PM CST WEDNESDAY. 

LIGHT SNOW WILL MOVE INTO WESTERN IOWA THIS MORNING...AND SPREAD
EAST THIS AFTERNOON. OCCASIONAL PERIODS OF MODERATE SNOW ARE
LIKELY THIS EVENING INTO THE EARLY MORNING HOURS. SNOWFALL
TONIGHT INTO EARLY WEDNESDAY IS EXPECTED TO BE IN THE 3 TO 6 INCH
RANGE ACROSS THE ADVISORY AREA. AN INCREASING NORTHERLY WIND WILL
ALSO CREATE BLOWING AND DRIFTING SNOW LATE TUESDAY AFTERNOON AND
NIGHT...ADDING TO THE TRAVEL HAZARD. MONITOR NOAA WEATHER RADIO
AND LOCAL MEDIA FOR LATER UPDATES.

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

$$
000 
WWUS43 KDMX 051607
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1007 AM CST TUE FEB 5 2008

...HEAVY SNOW HEADING FOR IOWA THIS AFTERNOON AND TONIGHT...

.A STORM SYSTEM DEVELOPING OVER THE SOUTHERN ROCKIES WILL MOVE
INTO MISSOURI BY THIS EVENING. THE LOW WILL CONTINUE TO INDIANA
BY WEDNESDAY MORNING. THIS TRACK WILL BRING ANOTHER ROUND OF HEAVY
SNOW TO THE SOUTHEAST HALF OF IOWA.

IAZ028-037>039-047>050-059>062-071>075-081>086-092>097-060015-
/O.CON.KDMX.WS.W.0001.080205T1800Z-080206T1800Z/
BREMER-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-DALLAS-
POLK-JASPER-POWESHIEK-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-
UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-
APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...WAVERLY...ELDORA...GRUNDY CENTER...
WATERLOO...BOONE...AMES...MARSHALLTOWN...TOLEDO...ADEL...
DES MOINES...NEWTON...GRINNELL...GREENFIELD...WINTERSET...
INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...
CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
1007 AM CST TUE FEB 5 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY. 

LIGHT SNOW WILL SPREAD INTO WESTERN IOWA THROUGH EARLY AFTERNOON. MODERATE
TO HEAVY SNOW WILL FALL FROM CORYDON TO JUST SOUTH OF OSKALOOSA
WHERE ISOLATED THUNDERSTORMS ARE ALSO POSSIBLE. ONE TO TWO INCHES
OF SNOW ARE POSSIBLE THROUGH EARLY AFTERNOON FOR LOCATIONS WHERE
THUNDERSTORMS OCCUR.

THERE WILL THEN BE A BRIEF RESPITE BEFORE SNOW BEGINS AGAIN IN
EARNEST LATE THIS AFTERNOON AND TONIGHT. SLEET OR RAIN MAY BE
MIXED WITH THE SNOW INITIALLY OVER THE SOUTH CENTRAL AND SOUTHEAST
COUNTIES...BEFORE CHANGING TO ALL SNOW BY EVENING. EXPECT PERIODS
OF HEAVY SNOW FROM TONIGHT THROUGH EARLY WEDNESDAY MORNING. THE
SNOW WILL TAPER OFF BY LATE WEDNESDAY MORNING. ISOLATED THUNDER
MAY ALSO OCCUR WITH THE SNOW LATE THIS AFTERNOON THROUGH EARLY
EVENING MAINLY ALONG AND SOUTHEAST OF A LINE FROM CENTERVILLE TO
OSKALOOSA.

LOCATIONS SOUTHEAST OF A LINE FROM CORYDON TO MONTEZUMA CAN EXPECT 10
TO 12 INCHES OF NEW SNOW. THUNDERSTORMS COULD RESULT IN LOCAL
AMOUNTS IN EXCESS OF A FOOT. NORTHWEST OF THAT AND SOUTHEAST OF A
LINE FROM SOUTH OF ATLANTIC TO WAVERLY 6 TO 10 INCHES IS EXPECTED.
AN INCREASING NORTHERLY WIND WILL ALSO CREATE BLOWING AND DRIFTING
SNOW TONIGHT INTO EARLY WEDNESDAY...ADDING TO THE TRAVEL HAZARD.
MONITOR NOAA WEATHER RADIO AND LOCAL MEDIA FOR LATER UPDATES.

THE HEAVY WET SNOW EXPECTED SOUTHEAST OF A LINE FROM CORYDON TO
MONTEZUMA COMBINED WITH THE PREVIOUS RECENT SNOWFALL WILL ADD
SIGNIFICANT STRESS TO ROOFTOPS. AS A RESULT WEAKER STRUCTURES MAY
COLLAPSE UNDER THE WEIGHT OF THE ADDITIONAL SNOWFALL.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IAZ025>027-035-036-044>046-057-058-070-060015-
/O.CON.KDMX.SB.Y.0002.080205T1800Z-080206T1800Z/
WRIGHT-FRANKLIN-BUTLER-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-
AUDUBON-GUTHRIE-CASS-
INCLUDING THE CITIES OF...CLARION...HAMPTON...ALLISON...
FORT DODGE...WEBSTER CITY...DENISON...CARROLL...JEFFERSON...
AUDUBON...GUTHRIE CENTER...ATLANTIC
1007 AM CST TUE FEB 5 2008

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM
CST WEDNESDAY...

A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM
CST WEDNESDAY. 

LIGHT SNOW WILL CONTINUE TO MOVE ACROSS THE ADVISORY AREA THROUGH
THE AFTERNOON HOURS. LIGHT ACCUMULATIONS ARE POSSIBLE. BY THIS EVENING...
PERIODS OF MODERATE SNOW ARE LIKELY AND WILL PERSIST THROUGH THE
EARLY MORNING HOURS. SNOWFALL TONIGHT INTO EARLY WEDNESDAY IS
EXPECTED TO BE IN THE 3 TO 6 INCH RANGE ACROSS THE ADVISORY AREA.
AN INCREASING NORTHERLY WIND WILL ALSO CREATE BLOWING AND DRIFTING
SNOW LATE TUESDAY AFTERNOON AND NIGHT...ADDING TO THE TRAVEL
HAZARD. MONITOR NOAA WEATHER RADIO AND LOCAL MEDIA FOR LATER
UPDATES.

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

$$

FAB
000 
WWUS43 KDMX 052201
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
401 PM CST TUE FEB 5 2008

...BANDS OF MODERATE TO HEAVY SNOW WILL BRING SIGNIFICANT SNOW TO
IOWA TONIGHT THROUGH WEDNESDAY MORNING...

.A STORM SYSTEM OVER THE SOUTHERN PLAINS WILL MOVE INTO MISSOURI THIS
EVENING AND CONTINUE TO INDIANA WEDNESDAY MORNING. THIS TRACK
WILL BRING HEAVY SNOW TO THE SOUTHEAST HALF OF IOWA.

IAZ070-060615-
/O.UPG.KDMX.SB.Y.0002.000000T0000Z-080206T1800Z/
/O.EXA.KDMX.WS.W.0001.000000T0000Z-080206T1800Z/
CASS-
INCLUDING THE CITY OF...ATLANTIC
401 PM CST TUE FEB 5 2008

...WINTER STORM WARNING IN EFFECT UNTIL 12 PM CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT UNTIL 12 PM CST WEDNESDAY. THE
SNOW AND BLOWING SNOW ADVISORY IS NO LONGER IN EFFECT. 

BANDS OF MODERATE TO HEAVY SNOWFALL WILL OCCUR OVER THE WARNING
AREA TONIGHT THROUGH EARLY WEDNESDAY MORNING BEFORE TAPERING OFF
TOWARDS THE NOON HOUR. THE HEAVIEST SNOWFALL WILL OCCUR BETWEEN 5
AND 7 PM THEN AGAIN AFTER MIDNIGHT. 6 TO 12 INCHES OF SNOW WILL
OCCUR BY MORNING WITH THE HEAVIEST AMOUNTS SOUTHEAST OF A WATERLOO
TO CORYDON LINE. MONITOR NOAA WEATHER RADIO AND LOCAL MEDIA FOR
LATER UPDATES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IAZ028-037>039-047>050-059>062-071>075-081>086-092>097-060615-
/O.CON.KDMX.WS.W.0001.000000T0000Z-080206T1800Z/
BREMER-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-DALLAS-
POLK-JASPER-POWESHIEK-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-
UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-
APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...WAVERLY...ELDORA...GRUNDY CENTER...
WATERLOO...BOONE...AMES...MARSHALLTOWN...TOLEDO...ADEL...
DES MOINES...NEWTON...GRINNELL...GREENFIELD...WINTERSET...
INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...
CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
401 PM CST TUE FEB 5 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY. 

BANDS OF MODERATE TO HEAVY SNOWFALL WILL OCCUR OVER THE WARNING
AREA TONIGHT THROUGH EARLY WEDNESDAY MORNING BEFORE TAPERING OFF
TOWARDS THE NOON HOUR. THE HEAVIEST SNOWFALL WILL OCCUR BETWEEN 5
AND 7 PM THEN AGAIN AFTER MIDNIGHT. 6 TO 12 INCHES OF SNOW WILL
OCCUR BY MORNING WITH THE HEAVIEST AMOUNTS SOUTHEAST OF A WATERLOO
TO CORYDON LINE. THUNDERSTORMS ARE ALSO POSSIBLE IN THIS AREA
TONIGHT. ANY LOCATION RECEIVING A THUNDERSTORM MAY SEE SNOWFALL
TOTALS IN EXCESS OF A FOOT. MONITOR NOAA WEATHER RADIO AND LOCAL
MEDIA FOR LATER UPDATES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IAZ025>027-035-036-044>046-057-058-060615-
/O.CON.KDMX.SB.Y.0002.000000T0000Z-080206T1800Z/
WRIGHT-FRANKLIN-BUTLER-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-
AUDUBON-GUTHRIE-
INCLUDING THE CITIES OF...CLARION...HAMPTON...ALLISON...
FORT DODGE...WEBSTER CITY...DENISON...CARROLL...JEFFERSON...
AUDUBON...GUTHRIE CENTER
401 PM CST TUE FEB 5 2008

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM
CST WEDNESDAY...

A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM
CST WEDNESDAY. 

LIGHT TO MODERATE SNOW WILL CONTINUE TO MOVE ACROSS THE ADVISORY
AREA TONIGHT. SNOWFALL TONIGHT INTO EARLY WEDNESDAY IS EXPECTED
TO BE IN THE 3 TO 6 INCH RANGE ACROSS THE ADVISORY AREA. AN
INCREASING NORTHERLY WIND WILL ALSO CREATE BLOWING AND DRIFTING
SNOW LATER THIS EVENING THROUGH EARLY WEDNESDAY. MONITOR NOAA
WEATHER RADIO AND LOCAL MEDIA FOR LATER UPDATES.

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

$$

FAB
000 
WWUS43 KDMX 060258
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
858 PM CST TUE FEB 5 2008

...WINTER STORM TO CONTINUE TO AFFECT PORTIONS OF IOWA THROUGH
WEDNESDAY MORNING...

.LOW PRESSURE CURRENTLY OVER SOUTHERN ILLINOIS WILL CONTINUE TO
LIFT NORTHEAST OVERNIGHT WITH WINTRY PRECIPITATION AFFECTING AREAS
TO THE NORTHWEST THROUGH WEDNESDAY MORNING. EXPECT A LULL IN THE
ACTIVITY THIS MORNING BEFORE ANOTHER WAVE OF SNOW LIFTS NORTH INTO
SOUTHERN AND CENTRAL IOWA. EXPECT A MIX OF FREEZING RAIN OVER THE
FAR SOUTHEAST FROM LAMONI TO OTTUMWA THROUGH 1 AM. 

IAZ028-037>039-047>050-059>062-070>075-081>086-092>097-061100-
/O.CON.KDMX.WS.W.0001.000000T0000Z-080206T1800Z/
BREMER-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-DALLAS-
POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-
ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-
WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...WAVERLY...ELDORA...GRUNDY CENTER...
WATERLOO...BOONE...AMES...MARSHALLTOWN...TOLEDO...ADEL...
DES MOINES...NEWTON...GRINNELL...ATLANTIC...GREENFIELD...
WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...
CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD...
MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD
858 PM CST TUE FEB 5 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM CST
WEDNESDAY. 

SNOW WILL INCREASE AGAIN LATE THIS EVENING AND BECOME HEAVY AT
TIMES ESPECIALLY AFTER 2 AM. 6 TO 12 INCHES OF SNOW WILL OCCUR
BY MORNING WITH THE HEAVIEST AMOUNTS SOUTHEAST OF A TAMA TO CORYDON
LINE. THUNDER SNOW IS POSSIBLE IN THIS AREA TONIGHT. ANY LOCATION
RECEIVING A THUNDERSTORM MAY SEE SNOWFALL TOTALS IN EXCESS OF A
FOOT. IN ADDITION NORTHERLY WINDS OF 15 TO 20 MPH WITH HIGHER
GUSTS WILL CAUSE SOME BLOWING AND DRIFTING OF SNOW. ACCUMULATING
SNOW WILL CONTINUE OVER THE SOUTHEAST THROUGH WEDNESDAY MORNING. MONITOR
NOAA WEATHER RADIO AND LOCAL MEDIA FOR LATER UPDATES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IAZ025>027-035-036-044>046-057-058-061100-
/O.CON.KDMX.SB.Y.0002.000000T0000Z-080206T1800Z/
WRIGHT-FRANKLIN-BUTLER-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-
AUDUBON-GUTHRIE-
INCLUDING THE CITIES OF...CLARION...HAMPTON...ALLISON...
FORT DODGE...WEBSTER CITY...DENISON...CARROLL...JEFFERSON...
AUDUBON...GUTHRIE CENTER
858 PM CST TUE FEB 5 2008

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM
CST WEDNESDAY...

LIGHT TO MODERATE SNOW WILL CONTINUE TO MOVE ACROSS THE ADVISORY
AREA TONIGHT. TOTAL SNOWFALL TONIGHT INTO EARLY WEDNESDAY IS
EXPECTED TO BE IN THE 3 TO 6 INCH RANGE ACROSS THE ADVISORY AREA.
AN NORTHERLY WIND OF 15 TO 20 MPH WITH HIGHER GUSTS WILL ALSO
CREATE BLOWING AND DRIFTING SNOW LATER THIS EVENING THROUGH EARLY
WEDNESDAY. MONITOR NOAA WEATHER RADIO AND LOCAL MEDIA FOR LATER
UPDATES.

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

$$

DONAVON
000 
WWUS43 KDMX 060959
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
359 AM CST WED FEB 6 2008

.LOW PRESSURE CURRENTLY NORTH OF SAINT LOUIS MISSOURI WILL MOVE
NORTH INTO NORTHERN INDIANA BY LATER THIS AFTERNOON. A BAND OF
HEAVY SNOW TO THE NORTHWEST OF THE LOW WILL GRADUALLY SHIFT EAST
ACROSS THE AREA THIS MORNING.

IAZ028-037-038-047-061800-
/O.CAN.KDMX.WS.W.0001.000000T0000Z-080206T1800Z/
/O.EXA.KDMX.SB.Y.0002.000000T0000Z-080206T1800Z/
BREMER-HARDIN-GRUNDY-BOONE-
INCLUDING THE CITIES OF...WAVERLY...ELDORA...GRUNDY CENTER...
BOONE
359 AM CST WED FEB 6 2008

...SNOW AND BLOWING SNOW ADVISORY IN EFFECT UNTIL NOON CST
TODAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT UNTIL NOON CST TODAY.
THE WINTER STORM WARNING HAS BEEN CANCELLED. 

THE BAND OF HEAVY SNOW WILL REMAIN JUST TO THE SOUTH OF THE AREA
WILL SAG SOUTHEAST SLOWLY THIS MORNING. LIGHT SNOW WILL CONTINUE
IN OUR AREA THROUGH THE MORNING HOURS WITH LIGHT ACCUMULATIONS OF UNDER
2 INCHES OF ADDITIONAL SNOW. NORTH TO NORTHWEST WINDS OF 15 TO 25
MPH WILL CAUSE SOME BLOWING AND DRIFTING SNOW.

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

$$

IAZ025-026-035-044-045-061100-
/O.CAN.KDMX.SB.Y.0002.000000T0000Z-080206T1800Z/
WRIGHT-FRANKLIN-WEBSTER-CRAWFORD-CARROLL-
INCLUDING THE CITIES OF...CLARION...HAMPTON...FORT DODGE...
DENISON...CARROLL
359 AM CST WED FEB 6 2008

...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE SNOW
AND BLOWING SNOW ADVISORY. 

THE AREA OF SNOW HAS SHIFTED SOUTH. ACCUMULATING SNOW IS NO LONGER
EXPECTED IN OUR AREA.

$$

IAZ039-048>050-059>062-070>075-081>086-092>097-061800-
/O.CON.KDMX.WS.W.0001.000000T0000Z-080206T1800Z/
BLACK HAWK-STORY-MARSHALL-TAMA-DALLAS-POLK-JASPER-POWESHIEK-CASS-
ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-
MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...WATERLOO...AMES...MARSHALLTOWN...
TOLEDO...ADEL...DES MOINES...NEWTON...GRINNELL...ATLANTIC...
GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...
CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...
BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD
359 AM CST WED FEB 6 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY. 

A BAND OF MODERATE TO OCCASIONALLY HEAVY SNOW WILL MOVE THROUGH
THE AREA EARLY THIS MORNING. SNOWFALL OF ONE HALF TO ONE INCH PER
HOUR IS LIKELY THROUGH SUNRISE...WITH SNOW TAPERING OFF AFTER
THAT.  THE HEAVIEST SNOW IS EXPECTED IN A 50 MILE WIDE BAND
EXTENDING FROM NEAR MT AYR. SNOWFALL RATES IN THIS BAND MAY REACH
2 INCHES PER HOUR ARE POSSIBLE THROUGH 7 AM WITH THIS BAND. A
TOTAL OF SIX TO TWELVE INCHES OF SNOW WILL OCCUR BY MID MORNING
WITH THE SOUTHEAST OF A GRINNELL TO MT AYR LINE. THUNDER SNOW IS
POSSIBLE IN THE HEAVY SNOW BAND THROUGH SUNRISE. ANY LOCATION
RECEIVING A THUNDERSTORM MAY SEE SNOWFALL TOTALS IN EXCESS OF A
FOOT. IN ADDITION NORTHERLY WINDS OF 15 TO 20 MPH WITH HIGHER
GUSTS WILL CAUSE SOME BLOWING AND DRIFTING OF SNOW. ACCUMULATING
SNOW TAPER OFF FROM NORTHWEST TO SOUTHEAST AFTER SUNRISE...WITH
LITTLE ADDITIONAL ACCUMULATION EXPECTED AFTER 9 OR 10 AM. MONITOR NOAA
WEATHER RADIO AND LOCAL MEDIA FOR LATER UPDATES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IAZ027-036-046-057-058-061800-
/O.CON.KDMX.SB.Y.0002.000000T0000Z-080206T1800Z/
BUTLER-HAMILTON-GREENE-AUDUBON-GUTHRIE-
INCLUDING THE CITIES OF...ALLISON...WEBSTER CITY...JEFFERSON...
AUDUBON...GUTHRIE CENTER
359 AM CST WED FEB 6 2008

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON
CST TODAY...

A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TODAY. 

LIGHT SNOW WILL CONTINUE IN OUR AREA THROUGH THE MORNING HOURS
WITH LIGHT ACCUMULATIONS OF AN INCH OR TWO OF ADDITIONAL SNOW.
NORTH TO NORTHWEST WINDS OF 15 TO 25 MPH WILL CAUSE SOME BLOWING
AND DRIFTING SNOW.

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

$$
000 
WWUS43 KDMX 061759
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1159 AM CST WED FEB 6 2008

...THE WINTER STORM IS EXITING CENTRAL IOWA...

.THE STORM THAT WAS RESPONSIBLE FOR SIGNIFICANT SNOWFALL OVER MUCH
OF IOWA IS PUSHING EAST. A BRISK WIND WILL BE LEFT IN ITS WAKE TO
PRODUCE AREAS OF BLOWING AND DRIFTING SNOW IN SOUTHEAST PORTIONS
OF CENTRAL IOWA THIS AFTERNOON.

IAZ062-074-075-084>086-095>097-062200-
/O.CAN.KDMX.WS.W.0001.000000T0000Z-080206T1800Z/
/O.NEW.KDMX.BS.Y.0004.080206T1759Z-080206T2200Z/
POWESHIEK-MARION-MAHASKA-LUCAS-MONROE-WAPELLO-WAYNE-APPANOOSE-
DAVIS-
INCLUDING THE CITIES OF...GRINNELL...KNOXVILLE...OSKALOOSA...
CHARITON...ALBIA...OTTUMWA...CORYDON...CENTERVILLE...BLOOMFIELD
1159 AM CST WED FEB 6 2008

...BLOWING SNOW ADVISORY IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A BLOWING
SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM CST THIS AFTERNOON.
THE WINTER STORM WARNING HAS BEEN CANCELED. 

THE THREAT FOR SIGNIFICANT SNOWFALL HAS ENDED. HOWEVER...LIGHT
SNOW WILL CONTINUE OVER THE AREA THROUGH MID AFTERNOON. ADDITIONAL
ACCUMULATIONS ARE EXPECTED TO BE LESS THEN AN INCH. A NORTHWEST
WIND WILL CONTINUE AT 15 TO 30 MPH HOWEVER CAUSING AREAS OF
BLOWING AND DRIFTING SNOW. VISIBILITIES WILL BE REDUCED TO LESS
THAN A QUARTER MILE AT TIMES...ESPECIALLY IN OPEN AREAS PROMPTING
THE ISSUANCE OF A BLOWING SNOW ADVISORY. THE WIND IS EXPECTED TO
DIMINISH LATE THIS AFTERNOON ENDING THE THREAT FOR BLOWING SNOW.

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.

$$

IAZ039-048>050-059>061-070>073-081>083-092>094-061900-
/O.CAN.KDMX.WS.W.0001.000000T0000Z-080206T1800Z/
BLACK HAWK-STORY-MARSHALL-TAMA-DALLAS-POLK-JASPER-CASS-ADAIR-
MADISON-WARREN-ADAMS-UNION-CLARKE-TAYLOR-RINGGOLD-DECATUR-
INCLUDING THE CITIES OF...WATERLOO...AMES...MARSHALLTOWN...
TOLEDO...ADEL...DES MOINES...NEWTON...ATLANTIC...GREENFIELD...
WINTERSET...INDIANOLA...CORNING...CRESTON...OSCEOLA...BEDFORD...
MOUNT AYR...LEON
1159 AM CST WED FEB 6 2008

...WINTER STORM WARNING IS CANCELLED...

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

LIGHT SNOW OR FLURRIES IS EXPECTED THROUGH MID AFTERNOON SOUTHEAST
OF A TOLEDO TO MELCHER-DALLAS LINE WITH LITTLE OR NO ADDITIONAL
ACCUMULATION EXPECTED. A NORTHWEST WIND AT 15 TO 25 MPH WILL
PRODUCE AREAS OF BLOWING AND DRIFTING SNOW BUT VISIBILITIES ARE NOT
EXPECTED TO DROP BELOW THREE QUARTERS OF A MILE IN OPEN AREAS AND
ONE MILE ELSEWHERE. THE WIND WILL DIMINISH LATER THIS AFTERNOON
ENDING ANY THREAT OF BLOWING AND DRIFTING SNOW.

$$

IAZ027-028-036>038-046-047-057-058-061900-
/O.CAN.KDMX.SB.Y.0002.000000T0000Z-080206T1800Z/
BUTLER-BREMER-HAMILTON-HARDIN-GRUNDY-GREENE-BOONE-AUDUBON-GUTHRIE-
INCLUDING THE CITIES OF...ALLISON...WAVERLY...WEBSTER CITY...
ELDORA...GRUNDY CENTER...JEFFERSON...BOONE...AUDUBON...
GUTHRIE CENTER
1159 AM CST WED FEB 6 2008

...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELED THE SNOW
AND BLOWING SNOW ADVISORY. 

THE SNOW HAS ENDED OVER THE ADVISORY AREA. A NORTHWEST WIND AT 15
TO 25 MPH WILL CONTINUE TO PRODUCE AREAS OF BLOWING AND DRIFTING
SNOW BUT VISIBILITIES ARE NOT EXPECTED TO BE LESS THAN A MILE. THE
WIND WILL DIMINISH LATER THIS AFTERNOON ENDING THE THREAT OF
BLOWING AND DRIFTING SNOW.

$$

FAB

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 5, 3:25 AM CST, 33 minutes earlier.

Area forecast discussion, Feb 5, 3:25 AM CST, 33 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
325 AM CST TUE FEB 5 2008

.DISCUSSION...
ACTIVE PATTERN CONTINUES FOR THE NEXT 36 HOURS WITH ANOTHER ROUND OF
WINTER WEATHER HEADING FOR THE STATE. CURRENT SFC MAP CONTINUES TO
SHOW ELONGATED STATIONARY BOUNDARY ACROSS TX PANHANDLE NORTHEAST
ACROSS CENTRAL OK TO JUST NORTH OF ST. LOUIS AND THEN UP TOWARD GARY
INDIANA. SPRING LIKE CONDITIONS SOUTH OF THE BOUNDARY EVEN THIS LATE
AT NIGHT WITH MID 60S TO LOWER 70S WITH DEW POINTS WELL INTO THE 60S
AT 03Z. ANOTHER MODIFIED ARCTIC BOUNDARY IS SITUATED OVER NORTHERN
IA TO THE DAKOTAS WHERE HIGH OVER CANADA IS NOW DRIVING SOME COLD
AIR SOUTH INTO THE ROCKIES AND CENTRAL PLAINS. EARLIER HPC
DISCUSSIONS FOCUSED ON A SLOWER SOLN WITH THE NAM BEING PREFERRED TO
SOME EXTENT OVER THE GFS. AFTER LOOKING AT THE WATER VAPOR IMAGERY
AND THE EXPANSIVE AREA OF SNOW BREAKING OUT IN CO/KS AS WELL AS
CONVECTIVE ELEMENTS BEGINNING TO ACCELERATE OUT OF TX/OK...HAVE
OPTED TO LEAN MORE WITH THE GFS TIMING AND TO SOME EXTENT...FEATURES
OF THE SYSTEM.

YESTERDAY MORNING SAW A VERY FAST MOVING SYSTEM CROSS THE STATE AND
THE SUBTROPICAL FLOW CONTINUES TO BE QUICK TODAY. GFS ALSO SEEMS TO
BE RECOGNIZING THE TWO TO THREE SEPARATE WAVES EJECTING NORTHEAST.
THOUGH NOT EXPECTING TO SEE LARGE BREAKS BETWEEN PIECES OF ENERGY...
THINKING IS THAT WE MAY SEE SEVERAL PERIODS OF SNOW IN THE NEXT 24
TO 36 HOURS WITH THE MAJORITY OF THE SNOW FALLING BETWEEN 00 AND 12Z
IN OUR AREA. PRECEDING THAT WILL BE SOME SNOWFALL ALONG THE
H700-H850 BOUNDARY WHICH IS ALREADY SITTING ACROSS THE STATE.
FORCING INCREASES DRAMATICALLY THROUGH THE AFTERNOON/EVENING HOURS
WITH POSSIBILITY OF THUNDER SNOW OVER THE SOUTHEAST THIRD LATE THIS
AFTERNOON AND EVENING. NEG EPV WITH BANDING AND POSSIBLE UPRIGHT
CONVECTION AS WELL. NAM CROSS SECTIONS INDICATE THAT DENDRITIC
GROWTH ZONE (DGZ) WILL BE MAXIMIZED OVER A MUCH LONGER PERIOD THAN
THE GFS WHICH HAS LATCHED ONTO THE CONVECTIVE BULLSEYE OCCURRING
OVER KS AT 09Z. THIS ARRIVES TO THE METRO AREA NEAR 18-20Z TIMEFRAME
WITH ONLY MODEST LIFT AFTER THAT. SOUTHEAST OF DES MOINES...GFS
CROSS SECTIONS BEST LIFT INCREASING BETWEEN LATE AFTERNOON AND
CONTINUING MOST OF THE NIGHT. WITH THE CONVECTION EXPECTED TO BE
ASSOCIATED WITH THE H700 FRONTAL ZONE...HAVE ADDED ISO THUNDER TO
OVERNIGHT IN AREAS NEAR THE BOUNDARY. BOTH MODELS SHOW A WELL
DEFINED TROWAL AND DEFORMATION AXIS EXTENDING OVER THE
SOUTHEAST...ESPECIALLY. IF NO WIGGLES FROM HERE...THIS SHOULD PRETTY
WELL MARK THE AXIS OF HEAVIEST SNOWFALL FROM NEAR LWD TO OTM UP
TOWARD THE DAVENPORT AREA. AMTS WILL DEPEND ON EXTENT OF BANDING AND
EVENTUAL PLACEMENT AS WELL...BUT STILL LOOKING FOR 6 TO 8 INCHES ON
THE NORTHERN FRINGE OF THE WARNING AREA WITH UP TO 11 INCHES
SOUTHEAST. WIND TO PICK UP AS THE TROUGH SWINGS EAST...ESPECIALLY
AFTER 03Z WEST SO BLOWING SNOW WILL BE AN ISSUE FOR OVERNIGHT AND
WEDNESDAY MORNING. BULK OF LIFT WILL BE OVER BY 15Z WED...WITH
LINGERING LIGHT SNOW POSSIBLE EAST AS SYSTEM WINDS DOWN. REALLY NO
COLD AIR BEHIND THE SYSTEM INITIALLY SO HAVE MAINTAINED MID TO UPPER
20S FOR HIGHS WED. MINOR SYSTEMS TO SKIP OVER THE AREA THROUGH THE
WEEKEND WITH SLIGHTLY BELOW NORMAL TEMPERATURES. LATEST GUIDANCE FOR
BOTH GFS AND EURO MODEL WANTS TO REVISIT THE CANADIAN TUNDRA BY SAT
NIGHT AND SUNDAY AS A VERY WELL PRONOUNCED ARCTIC BOUNDARY DROPS
SOUTH OF THE STATE. WITH H850 TEMPS IN THE 28 TO 30C BELOW RANGE WE
WILL PROBABLY BE LOOKING AT SOME 20 BELOW TEMPS AGAIN NORTHEAST.
ATTM SOME THINGS TO CONSIDER. LOW CONFIDENCE WITH HIGH BEING
COMPLETELY CLEAR...AND COLDEST AIR MAY QUICKLY MOVE EAST BEFORE
HAVING A CHANCE TO SETTLE. GEM SHOWS THAT A MORE NORTHERLY
TRAJECTORY IS POSSIBLE.

&&

.AVIATION...05/06Z
IFR TO LIFR CONDITIONS WHETHER FROM VSBY OR CEILING WILL CONTINUE
THROUGH ENTIRE TAF PERIOD...AND MAYBE EVEN A LITTLE VLIFR FROM TIME
TO TIME IN THE EAST. ATTENTION STILL ON THE 18Z TO 00Z PERIOD
WHEN SNOW IS EXPECTED TO BEGIN FALLING AT ALL TAF SITES. SNOW WILL
LIKELY BE HEAVIER WITH VLIFR CONDITIONS AT KDSM...KOTM AND KALO AFT
21Z. INCREASING NORTH WINDS AND BLSN TO BECOME AN ISSUE TOWARD 00Z.
THERE IS ALSO THE POTENTIAL AT SRN SITES FOR PERIODS OF +SN AFT 00Z
AND VSBY NEAR ZERO.

&&

WATCHES-WARNINGS-ADVISORIES-

WINTER STORM WARNING FROM 18Z TODAY THROUGH 18Z WEDNESDAY FOR
ADAIR-ADAMS-APPANOOSE-AUDUBON-BLACK HAWK-BOONE-BREMER-CLARKE-
DALLAS-DAVIS-DECATUR-GREENE-GRUNDY-GUTHRIE-HARDIN-JASPER-LUCAS-
MADISON-MAHASKA-MARION-MARSHALL-MONROE-POLK-POWESHIEK-RINGGOLD-STORY-
TAMA-TAYLOR-UNION-WAPELLO-WARREN-WAYNE.

SNOW AND BLOWING SNOW ADVISORY FROM 18Z TODAY THROUGH 18Z WEDNESDAY
FOR AUDUBON-BUTLER-CARROLL-CASS-CRAWFORD-FRANKLIN-GREENE-GUTHRIE
-HAMILTON-WEBSTER-WRIGHT.

SHORT TERM...MS FEB 08
LONG TERM...REV
AVIATION...MOYER/MS FEB 08
Hazardous weather outlook, Feb 4, 9:18 PM CST, 6 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE DES MOINES IA
918 PM CST MON FEB 4 2008

IAZ004>007-015-023-060330-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-POCAHONTAS-
918 PM CST MON FEB 4 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

IAZ016-017-024>027-033>036-044-045-060330-
HANCOCK-CERRO GORDO-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-SAC-CALHOUN-
WEBSTER-HAMILTON-CRAWFORD-CARROLL-
918 PM CST MON FEB 4 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A PROLONGED PERIOD OF SNOW IS FORECAST TUESDAY AND TUESDAY NIGHT. TOTAL
AMOUNTS SHOULD RANGE FROM ONE TO THREE INCHES. SOME BLOWING AND
DRIFTING SNOW MAY ALSO OCCUR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

IAZ028-037>039-046>050-057>062-070>075-081>086-092>097-060330-
BREMER-HARDIN-GRUNDY-BLACK HAWK-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-
918 PM CST MON FEB 4 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

YET ANOTHER WINTER STORM WILL IMPACT THE AREA TUESDAY...TUESDAY
NIGHT AND INTO WEDNESDAY MORNING. A PROLONGED PERIOD OF SNOW IS
FORECAST THROUGH THAT TIME WITH TOTAL AMOUNTS RANGING FROM THREE
TO TEN INCHES. THE HIGHEST AMOUNTS...IN EXCESS OF SIX INCHES...ARE
FORECAST TO FALL SOUTH OF A CORNING...TO DES MOINES...TO WATERLOO
LINE. THE PRECIPITATION MAY BEGIN AS FREEZING RAIN OR SLEET SOUTH
AND EAST OF DES MOINES BEFORE SWITCHING TO ALL SNOW. BLOWING AND
DRIFTING SNOW MAY ALSO OCCUR LATE TUESDAY INTO WEDNESDAY.

A WINTER STORM WATCH IS IN EFFECT FOR THE AREA. PLEASE REFER TO
THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR
MORE DETAILS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED...HOWEVER SNOWFALL REPORTS
ARE ALWAYS ENCOURAGED AND APPRECIATED.

SMALL/MOYER

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 5, 3:58 AM CSTSnow and Blowing Snow AdvisoryDMXAudubon, Boone, Bremer, Butler, Carroll, Cass and 9 more32 hr

Nearby

Winter Storm Warnings in Iowa, 2008Every winter storm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.