Alert archive / Iowa / Winter Storm Warnings in 2007

Winter Storm Warning 12, NWS Des Moines, IA

December 10, 200722 counties in Iowa

NWS Des Moines, IA issued this winter storm warning at Dec 10, 2007, 4:19 AM CST for 22 counties in Iowa. It took effect at Dec 10, 2007, 6:00 PM CST. It was in force for 22 hr. 45 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
Dec 10, 2007, 4:19 AM CST (10:19 UTC)
In effect from
Dec 10, 2007, 6:00 PM CST
Expired
Dec 11, 2007, 3:42 PM CST
In force
22 hr
Issued by
NWS Des Moines, IA
All 22 counties

Adair County, IA, Adams County, IA, Black Hawk County, IA, Boone County, IA, Cass County, IA, Clarke County, IA, Dallas County, IA, Grundy County, IA, Guthrie County, IA, Jasper County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Warren County, IA

The radar

The Des Moines radar (KDMX), 22 km from the middle of the area, began a volume at 10:17 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
Dec 10, 10:00 PM CSTFREEZING RAIN 0.2Lincoln, IAROADS AND SIDEWALKS ICY, PHONE AND CABLE LINES STARTING TO SAG FROM THE WEIGHT OF THE ICE.
Dec 10, 11:44 PM CSTFREEZING RAIN 0.25N Guthrie Center, IAROADS AND WALKWAYS COMPLETELY ICE COVERED.
Dec 11, 12:17 AM CSTFREEZING RAIN 0.05Ames, IA0.05 TO 0.10 ICE WITH TREES COMPLETELY COVERED.
Dec 11, 12:32 AM CSTFREEZING RAIN 0.25 N Earlham, IA0.20 ICE IN THE PAST TWO HOURS. ROADS COMPLETELY ICE COVERED.
Dec 11, 12:32 AM CSTICE STORM4 Se Redfield, IAROADS COMPLETELY COVERED WITH ICE WITH HEAVY FREEZING RAIN ONGOING.
Dec 11, 1:24 AM CSTFREEZING RAIN 0.13 W West Des Moines, IARESIDENTIAL SIDE STREETS COMPLETELY ICE COVERED WITH ICING ON TREES AND POWER LINES.
Dec 11, 2:27 AM CSTICE STORMWaterloo, IAKWWL REPORTS MODERATE FREEZING RAIN IN CEDAR FALLS AND WATERLOO. ROADS BECOMING ICE COVERED AND HAZARDOUS.
Dec 11, 2:33 AM CSTFREEZING RAIN 0.13West Des Moines, IAWHO RADIO REPORT. 60TH STREET IS MAINLY SLUSH COVERED WITH SIDE STREETS 100 PERCENT ICE COVERED.
Dec 11, 3:30 AM CSTFREEZING RAIN 0.13Ankeny, IAWOI REPORTS 1/8 INCH OF ICE ACCUMULATION ON VEHICLES
Dec 11, 3:30 AM CSTFREEZING RAIN 0.253 Se Adel, IAONE QUARTER OF AN INCH ICE ACCUMULATION ON VEHICLES
Dec 11, 3:52 AM CSTFREEZING RAIN 0.14 S Evansdale, IAROADS COMPLETELY ICE COVERED WITH ONE TENTH OF AN INCH ICE ACCUMULATION ON TREES AND VEHICLES
Dec 11, 4:50 AM CSTFREEZING RAIN 0.4Des Moines Int Airport, IA
Dec 11, 4:50 AM CSTICE STORMBedford, IASIGNIFICANT ICING WITH POWER OUTAGES IN PARTS OF BEDFORD...BLOCKTON...AND CLEARFIELD.
Dec 11, 5:45 AM CSTFREEZING RAIN 0.255 Sse Atlantic, IA
Dec 11, 5:52 AM CSTICE STORMOsceola, IASMALL LIMBS DOWN WITH SCATTERED POWER OUTAGES. FROM WOI TV.
Dec 11, 6:00 AM CSTFREEZING RAIN 0.2Johnston, IAAMOUNT THROUGH 6 AM AT NWS OFFICE IN JOHNSTON.
Dec 11, 6:54 AM CSTFREEZING RAIN 0.5Nnw Stuart, IAHALF INCH OF ICE ACCRUAL ON CARS AND TREES IN STUART.
Dec 11, 7:08 AM CSTFREEZING RAIN 0.25Montezuma, IA
Dec 11, 7:13 AM CSTFREEZING RAIN 0.5Indianola, IA
Dec 11, 7:28 AM CSTFREEZING RAIN 0.254 N Grimes, IAESTIMATED 0.2 INCH SLEET ACCUMULATION AS WELL.
Dec 11, 7:28 AM CSTFREEZING RAIN 0.43 Wsw Adel, IA
Dec 11, 7:30 AM CSTFREEZING RAIN 0.45 N Earlham, IA
Dec 11, 7:30 AM CSTFREEZING RAIN 0.5Dallas Center, IAONE HALF INCH ICE ON THE SURFACE WITH AROUND ONE QUARTER OF AN INCH ICE ACCUMULATION ON TREES AND POWER LINES.
Dec 11, 7:41 AM CSTFREEZING RAIN 0.5Brooklyn, IA0.25 TO 0.50 INCHES OF ICE ACCRUAL.
Dec 11, 7:50 AM CSTFREEZING RAIN 0.25Garwin, IA
Dec 11, 7:54 AM CSTFREEZING RAIN 0.6Ankeny, IA
Dec 11, 7:54 AM CSTFREEZING RAIN 110 Ssw Indianola, IAREPORTED 1 INCH OF ICE ACCUMULATION.
Dec 11, 8:00 AM CSTFREEZING RAIN 0.3Ames, IA
Dec 11, 8:02 AM CSTFREEZING RAIN 0.5Lorimor, IA
Dec 11, 8:10 AM CSTFREEZING RAIN 0.3Mount Ayr, IA
Dec 11, 8:18 AM CSTFREEZING RAIN 0.25Bussey, IA
Dec 11, 8:19 AM CSTFREEZING RAIN 0.75Beaconsfield, IABETWEEN 0.50 TO 0.75 INCHES OF ICE ACCRUAL AND POWER OUT IN BEACONSFIELD.
Dec 11, 8:42 AM CSTFREEZING RAIN 0.4N Guthrie Center, IA0.3 TO 0.4 INCHES OF ICE ACCRUAL ON EVERYTHING.
Dec 11, 8:52 AM CSTFREEZING RAIN 111 S Indianola, IAMEASURED 0.75 TO 1.00 INCHES OF ICE ACCRUAL WITH SEVERAL TREE LIMBS DOWN.
Dec 11, 8:53 AM CSTFREEZING RAIN 110 Ssw Indianola, IAREPORTED 1 INCH OF ICE ACCUMULATION.
Dec 11, 9:24 AM CSTFREEZING RAIN 0.38Hartford, IA3/8 OF AN INCH OF ICE ACCRUAL.
Dec 11, 9:25 AM CSTFREEZING RAIN 0.5Clutier, IA
Dec 11, 9:30 AM CSTFREEZING RAIN 0.5Grimes, IA
Dec 11, 9:34 AM CSTFREEZING RAIN 0.5Johnston, IA
Dec 11, 9:46 AM CSTFREEZING RAIN 0.51 N Redding, IAMULTIPLE TREE LIMBS DOWN...WITH POWER OUT.
Dec 11, 10:00 AM CSTFREEZING RAIN 0.25Garwin, IA1.4 INCHES OF SNOW AS WELL
Dec 11, 12:00 PM CSTFREEZING RAIN 0.354 N Grimes, IATOTAL FREEZING RAIN ACCRUAL FOR THE EVENT
Dec 11, 12:00 PM CSTSNOW 1.24 N Grimes, IACOMBINED SNOW/SLEET ACCUMULATION FOR THE EVENT
Dec 11, 12:00 PM CSTSNOW 1.9Ames, IA
Dec 11, 3:03 PM CSTFREEZING RAIN 0.881 N Pleasantville, IA3/4 TO 7/8 INCH ICE ACCUMULATION. MANY 4 INCH TREE LIMBS DOWN.

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

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 10.3 hours before the alert went out and 229 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 2007-12-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 2007-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
571 m above ground
0-6 km bulk shear
95 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
129 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 101019
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
419 AM CST MON DEC 10 2007

...SEVERE WINTER WEATHER MONDAY NIGHT AND TUESDAY WITH HEAVY
ICE ACCUMULATIONS OVER SOUTHERN IOWA...

.A STRONG UPPER LEVEL LOW PRESSURE SYSTEM WILL PUSH INTO THE CENTRAL
U.S. MONDAY NIGHT AND TUESDAY. THIS STORM WILL PRODUCE SIGNIFICANT
FREEZING RAIN...SLEET...AND SNOW ACCUMULATIONS ACROSS CENTRAL AND
SOUTHERN IOWA.

IAZ084>086-094>097-101830-
/O.UPG.KDMX.WS.A.0009.071211T0000Z-071212T0000Z/
/O.NEW.KDMX.IS.W.0003.071211T0000Z-071212T0000Z/
LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
419 AM CST MON DEC 10 2007

...ICE STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM CST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED AN ICE
STORM WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY. 

FREEZING RAIN WILL SPREAD NORTH INTO SOUTHERN IOWA THIS EVENING
AND INCREASE IN INTENSITY THROUGH THE NIGHT INTO TUESDAY
MORNING. THE FREEZING RAIN WILL BECOMING MIXED WITH SLEET AND
PERHAPS SOME SNOW TUESDAY AFTERNOON BEFORE TAPERING OFF TUESDAY
EVENING. FOR LOCATIONS ALONG AND SOUTH OF HIGHWAY 34...AND EAST OF
INTERSTATE 35...TOTAL ICE ACCUMULATIONS OF ONE HALF TO ONE INCH ARE
EXPECTED...ALONG WITH MINOR SLEET AND SNOW ACCUMULATIONS. THIS
AMOUNT OF ICE WILL DOWN TREE LIMBS AND POWER LINES...LIKELY
RESULTING IN WIDESPREAD POWER OUTAGES.

AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS
WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY
DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS WILL LIKELY
LEAD TO DOWNED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO
THE DANGER.

$$

IAZ070>075-081>083-092-093-101830-
/O.UPG.KDMX.WS.A.0009.071211T0000Z-071212T0000Z/
/O.NEW.KDMX.WS.W.0012.071211T0000Z-071212T0000Z/
CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-
TAYLOR-RINGGOLD-
INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET...
INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...
BEDFORD...MOUNT AYR
419 AM CST MON DEC 10 2007

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY.  

FREEZING RAIN WILL SPREAD INTO SOUTHERN IOWA THIS EVENING...THEN
BECOME MIXED WITH SLEET AND SNOW OVERNIGHT. DURING THE DAY ON
TUESDAY...SNOW AND SLEET WILL BE THE DOMINANT PRECIPITATION TYPES.
LOCATIONS ALONG THE HIGHWAY 92 CORRIDOR...AND WEST OF AN OSCEOLA
TO LAMONI LINE CAN EXPECT AROUND ONE THIRD OF AN INCH OF ICE
ACCUMULATION...BEFORE THE CHANGE OVER TO SLEET AND SNOW. SLEET
ACCUMULATIONS BY TUESDAY EVENING WILL RANGE FROM ONE HALF TO ONE
INCH. TOTAL SNOWFALL AMOUNTS WILL VARY FROM UNDER AN INCH NEAR THE
IOWA MISSOURI BORDER...UP TO 4 TO 5 INCHES ALONG HIGHWAY 92. 

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS WILL
LIKELY LEAD TO DOWNED POWER LINES AND FALLING TREE BRANCHES THAT
ADD TO THE DANGER.

$$

IAZ047>050-058>062-101830-
/O.NEW.KDMX.WS.W.0012.071211T0000Z-071212T0000Z/
BOONE-STORY-MARSHALL-TAMA-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-
INCLUDING THE CITIES OF...BOONE...AMES...MARSHALLTOWN...TOLEDO...
GUTHRIE CENTER...ADEL...DES MOINES...NEWTON...GRINNELL
419 AM CST MON DEC 10 2007

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY. 

A WINTRY MIX OF FREEZING RAIN...SLEET...AND SNOW WILL SPREAD NORTH
INTO CENTRAL IOWA TONIGHT. PRECIPITATION WILL TRANSITION TO SLEET
AND SNOW LATE TONIGHT...AND FINALLY TO ALL SNOW TUESDAY MORNING.
FOR LOCATIONS ALONG THE INTERSTATE 80 AND HIGHWAY 30
CORRIDORS...EAST OF A GUTHRIE CENTER TO OGDEN LINE...TOTAL SNOW
ACCUMULATIONS BY TUESDAY EVENING WILL RANGE FROM 2 TO 5
INCHES. IN ADDITION...SLEET ACCUMULATIONS OF ONE HALF TO ONE INCH
ARE EXPECTED. 

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

$$

MOYER/KINNEY
9 follow-up statements
000 
WWUS43 KDMX 101712
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1112 AM CST MON DEC 10 2007

...SEVERE WINTER WEATHER TONIGHT AND TUESDAY WITH HEAVY ICE
ACCUMULATIONS OVER SOUTHERN IOWA...

.A STRONG UPPER LEVEL LOW PRESSURE SYSTEM WILL PUSH INTO THE
CENTRAL U.S. TONIGHT THROUGH TUESDAY. THIS STORM WILL PRODUCE
SIGNIFICANT FREEZING RAIN...SLEET...AND SNOW ACCUMULATIONS ACROSS
CENTRAL AND SOUTHERN IOWA.

IAZ084>086-094>097-102300-
/O.CON.KDMX.IS.W.0003.071211T0000Z-071212T0000Z/
LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
1112 AM CST MON DEC 10 2007

...ICE STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST TUESDAY...

AN ICE STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST TUESDAY. 

FREEZING RAIN WILL SPREAD INTO SOUTHERN IOWA THIS EVENING AND
INCREASE IN INTENSITY THROUGH THE NIGHT INTO TUESDAY MORNING. THE
FREEZING RAIN WILL BECOMING MIXED WITH SLEET AND PERHAPS SOME SNOW
TUESDAY AFTERNOON BEFORE TAPERING OFF TUESDAY EVENING. FOR
LOCATIONS ALONG AND SOUTH OF HIGHWAY 34...AND EAST OF INTERSTATE
35...TOTAL ICE ACCUMULATIONS OF ONE HALF TO ONE INCH ARE
EXPECTED...ALONG WITH MINOR SLEET AND SNOW ACCUMULATIONS. THIS
AMOUNT OF ICE WILL DOWN TREE LIMBS AND POWER LINES...LIKELY
RESULTING IN WIDESPREAD POWER OUTAGES.

AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS
WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY
DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS WILL LIKELY
LEAD TO DOWNED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO
THE DANGER.

$$

IAZ047>050-058>062-070>075-081>083-092-093-102300-
/O.CON.KDMX.WS.W.0012.071211T0000Z-071212T0000Z/
BOONE-STORY-MARSHALL-TAMA-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-
CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-
TAYLOR-RINGGOLD-
INCLUDING THE CITIES OF...BOONE...AMES...MARSHALLTOWN...TOLEDO...
GUTHRIE CENTER...ADEL...DES MOINES...NEWTON...GRINNELL...
ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE...
OSKALOOSA...CORNING...CRESTON...OSCEOLA...BEDFORD...MOUNT AYR
1112 AM CST MON DEC 10 2007

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST TUESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST TUESDAY. 

A WINTRY MIX OF FREEZING RAIN...SLEET...AND SNOW WILL SPREAD
INTO CENTRAL IOWA TONIGHT. PRECIPITATION WILL TRANSITION TO SLEET
AND SNOW LATE TONIGHT...AND FINALLY TO ALL SNOW TUESDAY MORNING.
FOR LOCATIONS ALONG THE INTERSTATE 80 AND HIGHWAY 30
CORRIDORS...EAST OF A GUTHRIE CENTER TO OGDEN LINE...TOTAL SNOW
ACCUMULATIONS BY TUESDAY EVENING WILL RANGE FROM 2 TO 5 INCHES. IN
ADDITION...SLEET ACCUMULATIONS OF ONE HALF TO ONE INCH ARE
EXPECTED.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. IF
YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.

$$

CC
000 
WWUS43 KDMX 102202
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
402 PM CST MON DEC 10 2007

...SEVERE WINTER WEATHER TONIGHT AND TUESDAY WITH HEAVY ICE
ACCUMULATIONS OVER SOUTHERN IOWA...

.A STRONG UPPER LEVEL LOW PRESSURE SYSTEM WILL PUSH INTO THE
PLAINS TONIGHT THROUGH TUESDAY. THIS STORM WILL PRODUCE SIGNIFICANT
FREEZING RAIN...SLEET...AND SNOW ACCUMULATIONS ACROSS CENTRAL AND
SOUTHERN IOWA.

IAZ084>086-094>097-110500-
/O.CON.KDMX.IS.W.0003.071211T0000Z-071212T0000Z/
LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
402 PM CST MON DEC 10 2007

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST TUESDAY...

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST TUESDAY. 

FREEZING RAIN WILL SPREAD INTO SOUTHERN IOWA THIS EVENING AND
CONTINUE INTO THE DAY ON TUESDAY. THE FREEZING RAIN MAY MIX WITH
SLEET AND SNOW BEFORE ENDING BY EARLY TUESDAY EVENING. HEAVY ICE
ACCUMULATIONS OF ONE HALF INCH TO ONE INCH IS EXPECTED WITH
ISOLATED HIGHER AMOUNTS. THIS AMOUNT OF ICE WILL DOWN TREE LIMBS
AND POWER LINES...LIKELY RESULTING IN WIDESPREAD POWER OUTAGES
THAT MAY LAST FOR SOME TIME. 

AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS
WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY
DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS WILL LIKELY
LEAD TO DOWNED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO
THE DANGER.

DURING SIGNIFICANT ICING EVENTS...ICE ACCUMULATIONS MAY CAUSE
POWER OUTAGES. CARBON MONOXIDE POISONING IS A BIG CONCERN DURING
POWER OUTAGES DUE TO THE MISUSE OF PORTABLE HEATING DEVICES WHEN
POWER IS LOST. PROPER VENTILATION IS A MUST WHEN USING PORTABLE
HEATING DEVICES.

$$

IAZ047>050-058>062-070>075-081>083-092-093-110500-
/O.CON.KDMX.WS.W.0012.071211T0000Z-071212T0000Z/
BOONE-STORY-MARSHALL-TAMA-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-
CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-
TAYLOR-RINGGOLD-
INCLUDING THE CITIES OF...BOONE...AMES...MARSHALLTOWN...TOLEDO...
GUTHRIE CENTER...ADEL...DES MOINES...NEWTON...GRINNELL...
ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE...
OSKALOOSA...CORNING...CRESTON...OSCEOLA...BEDFORD...MOUNT AYR
402 PM CST MON DEC 10 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST
TUESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST TUESDAY. 

A WINTRY MIX OF FREEZING RAIN...SLEET...AND SNOW WILL SPREAD INTO
CENTRAL IOWA TONIGHT. PRECIPITATION WILL TRANSITION TO SLEET AND
SNOW LATE TONIGHT...AND FINALLY TO ALL SNOW TUESDAY MORNING. THE
HEAVIEST ICE ACCUMULATIONS ARE EXPECTED ALONG AND SOUTH OF STATE
HIGHWAY 92 AND WEST OF AN OSKALOOSA TO MOUNT AYR LINE. FOR LOCATIONS
ALONG THE INTERSTATE 80 AND HIGHWAY 30 CORRIDORS...ICE
ACCUMULATIONS OF UP TO ONE QUARTER OF AN INCH IS POSSIBLE ALONG
WITH SLEET OF UP TO ONE HALF INCH. SNOW ACCUMULATIONS OF 2 TO 5
INCHES ON TOP OF THE ICE AND SLEET IS EXPECTED BY LATE AFTERNOON
TUESDAY. 

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. IF
YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.

$$

IAZ035>039-044>046-057-110500-
/O.NEW.KDMX.WW.Y.0007.071211T0300Z-071212T0000Z/
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
AUDUBON-
INCLUDING THE CITIES OF...FORT DODGE...WEBSTER CITY...ELDORA...
GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON...
AUDUBON
402 PM CST MON DEC 10 2007

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
6 PM CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO
6 PM CST TUESDAY. 

FREEZING RAIN...SLEET AND SNOW IS EXPECTED TO MOVE INTO THE AREA
LATE THIS EVENING. ICE ACCUMULATIONS OF AN TENTH OR TWO WILL BE
POSSIBLE BEFORE THE PRECIPITATION TRANSITIONS TO ALL SNOW PRIOR TO
SUNRISE ON TUESDAY MORNING. SNOW IS THE FORECAST INTO TUESDAY WITH
TOTAL ACCUMULATIONS OF 2 TO 4 INCHES BEFORE TAPERING TO FLURRIES
BY LATE IN THE AFTERNOON.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$

CC
000 
WWUS43 KDMX 110312
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
912 PM CST MON DEC 10 2007

...SEVERE WINTER WEATHER TONIGHT AND TUESDAY WITH HEAVY ICE
ACCUMULATIONS OVER SOUTHERN IOWA...

.A STRONG UPPER LEVEL LOW PRESSURE SYSTEM WILL PUSH INTO THE
PLAINS TONIGHT THROUGH TUESDAY. THIS STORM WILL PRODUCE
SIGNIFICANT FREEZING RAIN...SLEET...AND SNOW ACCUMULATIONS ACROSS
CENTRAL AND SOUTHERN IOWA.

IAZ084>086-094>097-111100-
/O.CON.KDMX.IS.W.0003.000000T0000Z-071212T0000Z/
LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
912 PM CST MON DEC 10 2007

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST TUESDAY...

FREEZING RAIN WILL SPREAD INTO SOUTHERN IOWA THIS EVENING AND
CONTINUE INTO THE DAY ON TUESDAY. THE FREEZING RAIN MAY MIX WITH
SLEET AND BRIEFLY SNOW BEFORE ENDING BY EARLY TUESDAY EVENING.
HEAVY ICE ACCUMULATIONS OF ONE HALF INCH TO ONE INCH ARE EXPECTED
WITH ISOLATED HIGHER AMOUNTS. THIS AMOUNT OF ICE WILL DOWN TREE
LIMBS AND POWER LINES...LIKELY RESULTING IN WIDESPREAD POWER
OUTAGES THAT MAY LAST FOR SOME TIME.

AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS
WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY
DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS WILL LIKELY
LEAD TO DOWNED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO
THE DANGER.

DURING SIGNIFICANT ICING EVENTS...ICE ACCUMULATIONS MAY CAUSE
POWER OUTAGES. CARBON MONOXIDE POISONING IS A BIG CONCERN DURING
POWER OUTAGES DUE TO THE MISUSE OF PORTABLE HEATING DEVICES WHEN
POWER IS LOST. PROPER VENTILATION IS A MUST WHEN USING PORTABLE
HEATING DEVICES.

$$

IAZ047>050-058>062-070>075-081>083-092-093-111100-
/O.CON.KDMX.WS.W.0012.000000T0000Z-071212T0000Z/
BOONE-STORY-MARSHALL-TAMA-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-
CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-
TAYLOR-RINGGOLD-
INCLUDING THE CITIES OF...BOONE...AMES...MARSHALLTOWN...TOLEDO...
GUTHRIE CENTER...ADEL...DES MOINES...NEWTON...GRINNELL...
ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE...
OSKALOOSA...CORNING...CRESTON...OSCEOLA...BEDFORD...MOUNT AYR
912 PM CST MON DEC 10 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST
TUESDAY...

A WINTRY MIX OF FREEZING RAIN...SLEET...AND SNOW WILL SPREAD INTO
CENTRAL IOWA TONIGHT. PRECIPITATION WILL TRANSITION TO SLEET AND
SNOW LATE TONIGHT...AND FINALLY TO ALL SNOW TUESDAY MORNING. THE
HEAVIEST ICE ACCUMULATIONS ARE EXPECTED ALONG AND SOUTH OF HIGHWAY
92 AND EAST OF AN OSKALOOSA TO MOUNT AYR LINE. FOR LOCATIONS
ALONG THE INTERSTATE 80 AND HIGHWAY 30 CORRIDORS...ICE
ACCUMULATIONS OF UP TO ONE QUARTER OF AN INCH IS POSSIBLE ALONG
WITH SLEET OF UP TO ONE HALF INCH. SNOW ACCUMULATIONS OF 2 TO 5
INCHES ON TOP OF THE ICE AND SLEET IS EXPECTED BY LATE AFTERNOON
TUESDAY.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. IF
YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.

$$

IAZ035>039-044>046-057-111100-
/O.CON.KDMX.WW.Y.0007.000000T0000Z-071212T0000Z/
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
AUDUBON-
INCLUDING THE CITIES OF...FORT DODGE...WEBSTER CITY...ELDORA...
GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON...
AUDUBON
912 PM CST MON DEC 10 2007

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
TUESDAY...

FREEZING RAIN...SLEET AND SNOW IS EXPECTED TO MOVE INTO THE AREA
OVERNIGHT. ICE ACCUMULATIONS OF AN TENTH OR TWO WILL BE POSSIBLE
BEFORE THE PRECIPITATION TRANSITIONS TO ALL SNOW PRIOR TO SUNRISE
ON TUESDAY MORNING. SNOW IS THE FORECAST INTO TUESDAY WITH TOTAL
ACCUMULATIONS OF 2 TO 5 INCHES BEFORE TAPERING TO FLURRIES BY LATE
IN THE AFTERNOON.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$

SMALL
000 
WWUS43 KDMX 110756
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
156 AM CST TUE DEC 11 2007

...SEVERE WINTER WEATHER WILL CONTINUE TODAY WITH HEAVY ICE
ACCUMULATIONS OVER SOUTHERN IOWA...

.A STRONG UPPER LEVEL LOW PRESSURE SYSTEM WILL PUSH INTO THE
PLAINS TONIGHT THROUGH TUESDAY. THIS STORM WILL PRODUCE
SIGNIFICANT FREEZING RAIN...SLEET...AND SNOW ACCUMULATIONS ACROSS
CENTRAL AND SOUTHERN IOWA.

IAZ084>086-094>097-111600-
/O.CON.KDMX.IS.W.0003.000000T0000Z-071212T0000Z/
LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
156 AM CST TUE DEC 11 2007

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

SIGNIFICANT ICE ACCUMULATIONS CAN BE EXPECTED THROUGH LATE THIS AFTERNOON.
ACCUMULATIONS OF THREE QUARTERS OF AN INCH TO ONE AND ONE QUARTERS
OF AN INCH WITH LOCALLY HIGHER AMOUNTS POSSIBLE.

AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS
WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY
DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS WILL LIKELY
LEAD TO DOWNED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO
THE DANGER.

DURING SIGNIFICANT ICING EVENTS...ICE ACCUMULATIONS MAY CAUSE
POWER OUTAGES. CARBON MONOXIDE POISONING IS A BIG CONCERN DURING
POWER OUTAGES DUE TO THE MISUSE OF PORTABLE HEATING DEVICES WHEN
POWER IS LOST. PROPER VENTILATION IS A MUST WHEN USING PORTABLE
HEATING DEVICES.

$$

IAZ047>050-058>062-070>075-081>083-092-093-111600-
/O.CON.KDMX.WS.W.0012.000000T0000Z-071212T0000Z/
BOONE-STORY-MARSHALL-TAMA-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-
CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-
TAYLOR-RINGGOLD-
INCLUDING THE CITIES OF...BOONE...AMES...MARSHALLTOWN...TOLEDO...
GUTHRIE CENTER...ADEL...DES MOINES...NEWTON...GRINNELL...
ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE...
OSKALOOSA...CORNING...CRESTON...OSCEOLA...BEDFORD...MOUNT AYR
156 AM CST TUE DEC 11 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

A MIXTURE OF FREEZING RAIN...SLEET...AND SNOW WILL CONTINUE OVER
CENTRAL IOWA TONIGHT. EXPECT ICE ACCUMULATIONS OF ONE TENTH TO ONE
QUARTER OF AN INCH TONIGHT. THE PRECIPITATION WILL TRANSITION TO
SLEET AND SNOW LATE TONIGHT NORTH OF INTERSTATE 80 WITH A MORE
PROLONGED PERIOD OF FREEZING RAIN TO THE SOUTH...WHERE THE HEAVIEST ICE
ACCUMULATIONS ARE EXPECTED UP TO ONE HALF AN INCH. ACCUMULATIONS
OF 1 TO 4 INCHES OF SNOW AND SLEET COMBINED CAN BE EXPECTED NORTH
OF INTERSTATE 80 BY THIS AFTERNOON.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. IF
YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.

$$

IAZ023>028-033-034-111600-
/O.EXA.KDMX.WW.Y.0007.000000T0000Z-071212T0000Z/
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION...
HAMPTON...ALLISON...WAVERLY...SAC CITY...ROCKWELL CITY
156 AM CST TUE DEC 11 2007

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON.

EXPECT SNOW...BRIEFLY MIXED WITH FREEZING RAIN OR SLEET...TO
INCREASE ACROSS THE AREA THIS MORNING BEFORE GRADUALLY DIMINISHING
THIS AFTERNOON. SNOWFALL AMOUNTS OF 3 TO 5 INCHES ARE POSSIBLE
WITH MINOR SLEET OR ICE ACCUMULATIONS ALSO EXPECTED.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$

IAZ035>039-044>046-057-111600-
/O.CON.KDMX.WW.Y.0007.000000T0000Z-071212T0000Z/
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
AUDUBON-
INCLUDING THE CITIES OF...FORT DODGE...WEBSTER CITY...ELDORA...
GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON...
AUDUBON
156 AM CST TUE DEC 11 2007

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

EXPECT SNOW...BRIEFLY MIXED WITH FREEZING RAIN OR SLEET...TO
INCREASE ACROSS THE AREA THIS MORNING BEFORE GRADUALLY DIMINISHING
THIS AFTERNOON. SNOWFALL AMOUNTS OF 3 TO 5 INCHES ARE POSSIBLE
WITH MINOR SLEET OR ICE ACCUMULATIONS ALSO EXPECTED. 

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$
000 
WWUS43 KDMX 111013
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
413 AM CST TUE DEC 11 2007

...SEVERE WINTER WEATHER WILL CONTINUE TODAY WITH HEAVY ICE
ACCUMULATIONS OVER SOUTHERN IOWA...

.A STRONG UPPER LEVEL LOW PRESSURE SYSTEM WILL PUSH THROUGH THE
PLAINS TODAY. THIS STORM WILL PRODUCE SIGNIFICANT FREEZING
RAIN...SLEET...AND SNOW ACCUMULATIONS ACROSS CENTRAL AND SOUTHERN
IOWA.

IAZ084>086-094>097-111815-
/O.CON.KDMX.IS.W.0003.000000T0000Z-071212T0000Z/
LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
413 AM CST TUE DEC 11 2007

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON. 

SIGNIFICANT ICE ACCUMULATIONS WILL CONTINUE THROUGH LATE THIS AFTERNOON.
ACCUMULATIONS OF THREE QUARTERS OF AN INCH TO NEARLY ONE AND A
HALF INCHES ARE EXPECTED. SOME MINOR SLEET ACCUMULATIONS ARE
POSSIBLE LATER THIS AFTERNOON.

AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE
TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED.
COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS WILL LIKELY
LEAD TO DOWNED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO
THE DANGER.

DURING SIGNIFICANT ICING EVENTS...ICE ACCUMULATIONS MAY CAUSE
POWER OUTAGES. CARBON MONOXIDE POISONING IS A BIG CONCERN DURING
POWER OUTAGES DUE TO THE MISUSE OF PORTABLE HEATING DEVICES WHEN
POWER IS LOST. PROPER VENTILATION IS A MUST WHEN USING PORTABLE
HEATING DEVICES.

$$

IAZ047>050-058>062-070>075-081>083-092-093-111815-
/O.CON.KDMX.WS.W.0012.000000T0000Z-071212T0000Z/
BOONE-STORY-MARSHALL-TAMA-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-
CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-
TAYLOR-RINGGOLD-
INCLUDING THE CITIES OF...BOONE...AMES...MARSHALLTOWN...TOLEDO...
GUTHRIE CENTER...ADEL...DES MOINES...NEWTON...GRINNELL...
ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE...
OSKALOOSA...CORNING...CRESTON...OSCEOLA...BEDFORD...MOUNT AYR
413 AM CST TUE DEC 11 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON. 

A MIXTURE OF FREEZING RAIN...SLEET...AND SNOW WILL CONTINUE OVER
CENTRAL AND SOUTHERN IOWA TODAY. TOTAL ICE ACCUMULATIONS OF ONE
QUARTER TO THREE QUARTERS OF AN INCH ARE EXPECTED...OVER LOCATIONS
ALONG THE INTERSTATE 80 CORRIDOR...AND WEST OF INTERSTATE 35.
EXPECT LESSOR AMOUNTS OF ICE NORTH OF INTERSTATE 80. PRECIPITATION
WILL TRANSITION TO MAINLY SNOW AND SLEET THIS MORNING. ACCUMULATIONS OF
2 TO 4 INCHES OF SNOW AND SLEET COMBINED CAN BE EXPECTED NORTH OF
INTERSTATE 80 BY THIS AFTERNOON. AMOUNTS SOUTH OF INTERSTATE 80
WILL VARY FROM A HALF INCH UP TO TWO INCHES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE OCCURRING. THIS WILL MAKE TRAVEL VERY
HAZARDOUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.

$$

IAZ023>028-033>039-044>046-057-111815-
/O.CON.KDMX.WW.Y.0007.000000T0000Z-071212T0000Z/
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
AUDUBON-
INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION...
HAMPTON...ALLISON...WAVERLY...SAC CITY...ROCKWELL CITY...
FORT DODGE...WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...
DENISON...CARROLL...JEFFERSON...AUDUBON
413 AM CST TUE DEC 11 2007

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON. 

EXPECT SNOW...MIXED WITH FREEZING RAIN OR SLEET EARLY THIS 
MORNING...TO CONTINUE ACROSS THE AREA BEFORE GRADUALLY
DIMINISHING THIS AFTERNOON. SNOWFALL AMOUNTS OF 3 TO 5 INCHES ARE
POSSIBLE WITH MINOR SLEET OR ICE ACCUMULATIONS ALSO EXPECTED.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$

KINNEY
000 
WWUS43 KDMX 111555
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
955 AM CST TUE DEC 11 2007

...SEVERE WINTER WEATHER WILL CONTINUE TODAY WITH HEAVY ICE ACCUMULATIONS
OVER SOUTHERN IOWA...

.A STRONG UPPER LEVEL LOW PRESSURE SYSTEM WILL TRACK ACROSS THE PLAINS
THROUGH THIS EVENING. THIS STORM WILL PRODUCE SIGNIFICANT FREEZING
RAIN...SLEET...AND SNOW ACCUMULATIONS ACROSS CENTRAL AND SOUTHERN
IOWA.

IAZ038-039-120000-
/O.UPG.KDMX.WW.Y.0007.000000T0000Z-071212T0000Z/
/O.EXA.KDMX.WS.W.0012.000000T0000Z-071212T0000Z/
GRUNDY-BLACK HAWK-
INCLUDING THE CITIES OF...GRUNDY CENTER...WATERLOO
955 AM CST TUE DEC 11 2007

...WINTER STORM WARNING IN EFFECT UNTIL 6 PM CST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM
WARNING WHICH IS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. THIS
REPLACES THE WINTER WEATHER ADVISORY...WHICH IS NO LONGER IN EFFECT.
OVER ONE QUARTER OF AN INCH OF ICE HAS ALREADY ACCUMULATED OVERNIGHT
IN THE WARNED AREA.

EXPECT ADDITIONAL SNOW...MIXED AT TIMES WITH FREEZING RAIN OR
SLEET THIS MORNING...TO CONTINUE ACROSS THE AREA BEFORE GRADUALLY
DIMINISHING LATE THIS AFTERNOON. SNOWFALL AMOUNTS OF 2 TO 4 INCHES
ARE POSSIBLE WITH MINOR SLEET OR ICE ACCUMULATIONS ALSO EXPECTED.

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 IN
SOME INSTANCES.

$$

IAZ084>086-094>097-120000-
/O.CON.KDMX.IS.W.0003.000000T0000Z-071212T0000Z/
LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
955 AM CST TUE DEC 11 2007

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

SIGNIFICANT ICE ACCUMULATIONS WILL CONTINUE THROUGH LATE THIS
AFTERNOON. ACCUMULATIONS OF THREE QUARTERS OF AN INCH TO NEARLY
ONE AND A HALF INCHES ARE EXPECTED. SOME MINOR SLEET ACCUMULATIONS
ARE POSSIBLE LATER THIS AFTERNOON.

AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE
TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED.
COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN
CASE OF AN EMERGENCY. ICE ACCUMULATIONS WILL LIKELY LEAD TO
DOWNED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE
DANGER.

DURING SIGNIFICANT ICING EVENTS...ICE ACCUMULATIONS MAY CAUSE
POWER OUTAGES. CARBON MONOXIDE POISONING IS A BIG CONCERN DURING
POWER OUTAGES DUE TO THE MISUSE OF PORTABLE HEATING DEVICES WHEN
POWER IS LOST. PROPER VENTILATION IS A MUST WHEN USING PORTABLE
HEATING DEVICES.

$$

IAZ047>050-058>062-070>075-081>083-092-093-120000-
/O.CON.KDMX.WS.W.0012.000000T0000Z-071212T0000Z/
BOONE-STORY-MARSHALL-TAMA-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-
CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-
TAYLOR-RINGGOLD-
INCLUDING THE CITIES OF...BOONE...AMES...MARSHALLTOWN...TOLEDO...
GUTHRIE CENTER...ADEL...DES MOINES...NEWTON...GRINNELL...
ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE...
OSKALOOSA...CORNING...CRESTON...OSCEOLA...BEDFORD...MOUNT AYR
955 AM CST TUE DEC 11 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

A MIXTURE OF FREEZING RAIN...SLEET...AND SNOW WILL CONTINUE OVER
CENTRAL AND SOUTHERN IOWA TODAY. TOTAL ICE ACCUMULATIONS OF ONE
QUARTER TO THREE QUARTERS OF AN INCH ARE EXPECTED...OVER
LOCATIONS ALONG THE INTERSTATE 80 CORRIDOR...AND WEST OF
INTERSTATE 35. EXPECT LESSOR AMOUNTS OF ICE NORTH OF INTERSTATE
80. PRECIPITATION WILL TRANSITION TO MAINLY SNOW AND SLEET THIS
MORNING. ACCUMULATIONS OF 2 TO 4 INCHES OF SNOW AND SLEET
COMBINED CAN BE EXPECTED NORTH OF INTERSTATE 80 BY THIS
AFTERNOON. AMOUNTS SOUTH OF INTERSTATE 80 WILL VARY FROM A HALF
INCH UP TO TWO INCHES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE OCCURRING. THIS WILL MAKE TRAVEL VERY
HAZARDOUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.

$$

IAZ023>028-033>037-044>046-057-120000-
/O.CON.KDMX.WW.Y.0007.000000T0000Z-071212T0000Z/
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-CRAWFORD-CARROLL-GREENE-AUDUBON-
INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION...
HAMPTON...ALLISON...WAVERLY...SAC CITY...ROCKWELL CITY...
FORT DODGE...WEBSTER CITY...ELDORA...DENISON...CARROLL...
JEFFERSON...AUDUBON
955 AM CST TUE DEC 11 2007

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

EXPECT SNOW TO CONTINUE ACROSS THE AREA BEFORE GRADUALLY DIMINISHING
THIS AFTERNOON. SNOWFALL AMOUNTS OF 3 TO 5 INCHES ARE POSSIBLE
WITH MINOR SLEET OR ICE ACCUMULATIONS ALSO EXPECTED.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$

REV
000 
WWUS43 KDMX 111817 AAA
WSWDMX

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE DES MOINES IA
1217 PM CST TUE DEC 11 2007

...SEVERE WINTER WEATHER WILL CONTINUE TODAY OVER PORTIONS OF
CENTRAL AND SOUTHERN IOWA WITH HEAVY ICE ACCUMULATIONS OVER
SOUTHERN IOWA...

.A STRONG UPPER LEVEL LOW PRESSURE SYSTEM WILL TRACK ACROSS THE
PLAINS THROUGH THIS EVENING. THIS STORM WILL PRODUCE SIGNIFICANT
FREEZING RAIN...SLEET...AND SNOW ACCUMULATIONS ACROSS CENTRAL AND
SOUTHERN IOWA.

IAZ023>026-033>037-044>046-057-111930-
/O.CAN.KDMX.WW.Y.0007.000000T0000Z-071212T0000Z/
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-SAC-CALHOUN-WEBSTER-HAMILTON-
HARDIN-CRAWFORD-CARROLL-GREENE-AUDUBON-
INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION...
HAMPTON...SAC CITY...ROCKWELL CITY...FORT DODGE...WEBSTER CITY...
ELDORA...DENISON...CARROLL...JEFFERSON...AUDUBON
1217 PM CST TUE DEC 11 2007

...WINTER WEATHER ADVISORY IS CANCELLED...

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

PRECIPITATION ACROSS THE AREA HAS DIMINISHED THIS AFTERNOON AND
CONDITIONS HAVE IMPROVED SINCE THIS MORNING. THOUGH SOME LIGHT
SNOW IS STILL ANTICIPATED THIS AFTERNOON EAST OF A CLARION TO BOONE
LINE...THE HEAVIEST SNOWFALL AND PRECIPITATION HAS ENDED. PERSONS
TRAVELING TODAY AND THIS EVENING ARE URGED TO EXERCISE CAUTION. 

$$

IAZ084>086-094>097-120000-
/O.CON.KDMX.IS.W.0003.000000T0000Z-071212T0000Z/
LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
1217 PM CST TUE DEC 11 2007

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

SIGNIFICANT ICE ACCUMULATIONS WILL CONTINUE THROUGH LATE THIS
AFTERNOON. ACCUMULATIONS OF THREE QUARTERS OF AN INCH TO NEARLY
ONE AND A HALF INCHES ARE EXPECTED. SOME MINOR SLEET ACCUMULATIONS
ARE POSSIBLE LATER THIS AFTERNOON.

AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE
TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED.
COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN
CASE OF AN EMERGENCY. ICE ACCUMULATIONS WILL LIKELY LEAD TO
DOWNED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE
DANGER.

DURING SIGNIFICANT ICING EVENTS...ICE ACCUMULATIONS MAY CAUSE
POWER OUTAGES. CARBON MONOXIDE POISONING IS A BIG CONCERN DURING
POWER OUTAGES DUE TO THE MISUSE OF PORTABLE HEATING DEVICES WHEN
POWER IS LOST. PROPER VENTILATION IS A MUST WHEN USING PORTABLE
HEATING DEVICES.

$$

IAZ038-039-047>050-058>062-070>075-081>083-092-093-120000-
/O.CON.KDMX.WS.W.0012.000000T0000Z-071212T0000Z/
GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-GUTHRIE-DALLAS-POLK-
JASPER-POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-
UNION-CLARKE-TAYLOR-RINGGOLD-
INCLUDING THE CITIES OF...GRUNDY CENTER...WATERLOO...BOONE...
AMES...MARSHALLTOWN...TOLEDO...GUTHRIE CENTER...ADEL...
DES MOINES...NEWTON...GRINNELL...ATLANTIC...GREENFIELD...
WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...
CRESTON...OSCEOLA...BEDFORD...MOUNT AYR
1217 PM CST TUE DEC 11 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

A MIXTURE OF FREEZING RAIN...SLEET...AND SNOW WILL CONTINUE OVER
CENTRAL AND SOUTHERN IOWA TODAY. TOTAL ICE ACCUMULATIONS OF ONE
QUARTER TO THREE QUARTERS OF AN INCH ARE EXPECTED...OVER
LOCATIONS ALONG THE INTERSTATE 80 CORRIDOR...AND WEST OF
INTERSTATE 35. EXPECT LESSOR AMOUNTS OF ICE NORTH OF INTERSTATE
80. PRECIPITATION HAS TRANSITIONED TO MAINLY SNOW AND SLEET THIS
WITH TOTAL ACCUMULATIONS OF 2 TO 4 INCHES OF SNOW AND SLEET
COMBINED CAN BE EXPECTED NORTH OF INTERSTATE 80. AMOUNTS SOUTH OF
INTERSTATE 80 WILL VARY FROM A HALF INCH UP TO TWO INCHES WHERE
MORE ICE HAS FALLEN.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE OCCURRING. THIS WILL MAKE TRAVEL VERY
HAZARDOUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.

$$

IAZ027-028-120000-
/O.CON.KDMX.WW.Y.0007.000000T0000Z-071212T0000Z/
BUTLER-BREMER-
INCLUDING THE CITIES OF...ALLISON...WAVERLY
1217 PM CST TUE DEC 11 2007

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

ADDITIONAL LIGHT SNOW OF ONE TO TWO INCHES IS POSSIBLE YET THIS
AFTERNOON. ROADS REMAIN SLICK AND TRAVEL WILL BE DIFFICULT AT
TIMES. 

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$

REV
000 
WWUS43 KDMX 111947
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
147 PM CST TUE DEC 11 2007

...SEVERE WINTER WEATHER WILL CONTINUE TODAY OVER PORTIONS OF
CENTRAL AND SOUTHERN IOWA WITH HEAVY ICE ACCUMULATIONS OVER
SOUTHERN IOWA...

.A STRONG UPPER LEVEL LOW PRESSURE SYSTEM IS TRACKING ACROSS THE
PLAINS THROUGH THIS EVENING. THIS STORM WILL PRODUCE SIGNIFICANT
FREEZING RAIN...SLEET...AND SNOW ACCUMULATIONS ACROSS CENTRAL AND
SOUTHERN IOWA.

IAZ038-039-047>050-058>061-070-071-081-112100-
/O.CAN.KDMX.WS.W.0012.000000T0000Z-071212T0000Z/
GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-GUTHRIE-DALLAS-POLK-
JASPER-CASS-ADAIR-ADAMS-
INCLUDING THE CITIES OF...GRUNDY CENTER...WATERLOO...BOONE...
AMES...MARSHALLTOWN...TOLEDO...GUTHRIE CENTER...ADEL...
DES MOINES...NEWTON...ATLANTIC...GREENFIELD...CORNING
147 PM CST TUE DEC 11 2007

...WINTER STORM WARNING IS CANCELLED...

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

MOST OF THE PRECIPITATION HAS DIMINISHED THROUGHOUT THE WARNING
AREA THIS AFTERNOON AND LITTLE ADDITIONAL PRECIPITATION IS
EXPECTED. SOME LIGHT SNOW IS STILL EXPECTED THROUGH THE EVENING
HOURS. 

$$

IAZ027-028-112100-
/O.CAN.KDMX.WW.Y.0007.000000T0000Z-071212T0000Z/
BUTLER-BREMER-
INCLUDING THE CITIES OF...ALLISON...WAVERLY
147 PM CST TUE DEC 11 2007

...WINTER WEATHER ADVISORY IS CANCELLED...

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

$$

IAZ084>086-094>097-120000-
/O.CON.KDMX.IS.W.0003.000000T0000Z-071212T0000Z/
LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
147 PM CST TUE DEC 11 2007

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON. 

AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE
TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED.
COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN
CASE OF AN EMERGENCY. ICE ACCUMULATIONS WILL LIKELY LEAD TO
DOWNED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE
DANGER.

DURING SIGNIFICANT ICING EVENTS...ICE ACCUMULATIONS MAY CAUSE
POWER OUTAGES. CARBON MONOXIDE POISONING IS A BIG CONCERN DURING
POWER OUTAGES DUE TO THE MISUSE OF PORTABLE HEATING DEVICES WHEN
POWER IS LOST. PROPER VENTILATION IS A MUST WHEN USING PORTABLE
HEATING DEVICES.

$$

IAZ062-072>075-082-083-092-093-120000-
/O.CON.KDMX.WS.W.0012.000000T0000Z-071212T0000Z/
POWESHIEK-MADISON-WARREN-MARION-MAHASKA-UNION-CLARKE-TAYLOR-
RINGGOLD-
INCLUDING THE CITIES OF...GRINNELL...WINTERSET...INDIANOLA...
KNOXVILLE...OSKALOOSA...CRESTON...OSCEOLA...BEDFORD...MOUNT AYR
147 PM CST TUE DEC 11 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON. 

PERIODS OF ADDITIONAL LIGHT SNOW AND POSSIBLE LIGHT FREEZING RAIN
WILL CONTINUE FOR THE NEXT SEVERAL HOURS. 

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE OCCURRING. THIS WILL MAKE TRAVEL VERY
HAZARDOUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.

$$

REV
000 
WWUS43 KDMX 112142
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
342 PM CST TUE DEC 11 2007

...MAJOR WINTER STORM SHIFTING EAST WITH ONE MORE ROUND OF LIGHT
PRECIPITATION ON THE WAY FOR CENTRAL AND SOUTHERN IOWA...

.ANOTHER ROUND OF LIGHT PRECIPITATION WILL BE HEADING INTO SOUTHERN
IOWA YET THIS EVENING FROM KANSAS AND MISSOURI. A MIXTURE OF LIGHT
SNOW...SLEET...AND LIGHT FREEZING RAIN WILL OCCUR OVER THE FAR
SOUTHERN COUNTIES WITH LIGHT SNOW POSSIBLE THROUGH CENTRAL IOWA.

IAZ084>086-094>097-120300-
/O.CAN.KDMX.IS.W.0003.000000T0000Z-071212T0000Z/
/O.NEW.KDMX.WW.Y.0008.071211T2200Z-071212T0300Z/
LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
342 PM CST TUE DEC 11 2007

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

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

PERIODS OF ADDITIONAL LIGHT SNOW MIXED WITH SLEET OR POSSIBLE
LIGHT FREEZING RAIN WILL CONTINUE FOR THE NEXT SEVERAL HOURS.
AN ADDITIONAL SNOWFALL OF AROUND ONE INCH IS EXPECTED.

DUE TO THE EARLIER SEVERE CONDITIONS TODAY...TRAVEL IS DISCOURAGED. 
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS EARLIER
TODAY HAVE CAUSED DOWNED POWER LINES... POWER OUTAGES...AND
FALLING TREE BRANCHES.

CARBON MONOXIDE POISONING IS A BIG CONCERN DURING POWER OUTAGES
DUE TO THE MISUSE OF PORTABLE HEATING DEVICES WHEN POWER IS LOST.
PROPER VENTILATION IS A MUST WHEN USING PORTABLE HEATING DEVICES.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$

IAZ083-093-120300-
/O.CAN.KDMX.WS.W.0012.000000T0000Z-071212T0000Z/
/O.NEW.KDMX.WW.Y.0008.071211T2200Z-071212T0300Z/
CLARKE-RINGGOLD-
INCLUDING THE CITIES OF...OSCEOLA...MOUNT AYR
342 PM CST TUE DEC 11 2007

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

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

PERIODS OF ADDITIONAL LIGHT SNOW AND POSSIBLE SLEET WILL CONTINUE
FOR THE NEXT SEVERAL HOURS. ADDITIONAL SNOWFALL AMOUNTS OF AROUND
ONE INCH IS EXPECTED.

DUE TO THE EARLIER SEVERE CONDITIONS TODAY...TRAVEL IS DISCOURAGED. 
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS EARLIER
TODAY HAVE CAUSED DOWNED POWER LINES... POWER OUTAGES...AND
FALLING TREE BRANCHES.

CARBON MONOXIDE POISONING IS A BIG CONCERN DURING POWER OUTAGES
DUE TO THE MISUSE OF PORTABLE HEATING DEVICES WHEN POWER IS LOST.
PROPER VENTILATION IS A MUST WHEN USING PORTABLE HEATING DEVICES. 

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$

IAZ062-072>075-082-092-112245-
/O.CAN.KDMX.WS.W.0012.000000T0000Z-071212T0000Z/
POWESHIEK-MADISON-WARREN-MARION-MAHASKA-UNION-TAYLOR-
INCLUDING THE CITIES OF...GRINNELL...WINTERSET...INDIANOLA...
KNOXVILLE...OSKALOOSA...CRESTON...BEDFORD
342 PM CST TUE DEC 11 2007

...WINTER STORM WARNING IS CANCELLED...

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

SOME LIGHT SNOW MAY FALL DURING THE EVENING HOURS BUT LITTLE IF
ANY ACCUMULATION IS EXPECTED.

$$

REV

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 Dec 10, 3:35 AM CST, 44 minutes earlier.

Area forecast discussion, Dec 10, 3:35 AM CST, 44 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
335 AM CST MON DEC 10 2007

...SIGNIFICANT WINTER STORM ON TRACK TO AFFECT PORTIONS OF
CENTRAL IOWA TONIGHT AND TUESDAY...

.SHORT TERM /TODAY/...
A HIGH PRESSURE RIDGE WILL PUSH EAST ACROSS IOWA THIS MORNING
ALLOWING A RETURN TO SOUTHERLY WINDS. DESPITE THE WAA...HAVE LEANED
TOWARD THE COOLER SREF GUIDANCE FOR AFTERNOON HIGHS WITH IMPACTS OF
SNOW COVER. MID LEVEL MOISTURE SURGE WILL BE UNDERWAY LATER THIS
AFTERNOON ACROSS SOUTHERN IOWA WITH INCREASING CLOUDS LATE.

.LONG TERM /TONIGHT-SUNDAY/...
ALL ATTENTION THIS FORECAST PACKAGE IS FOCUSED ON TONIGHT AND
TUESDAY. A MAJOR ICE STORM APPEARS ALMOST A CERTAINTY ACROSS
SOUTHEAST SECTIONS FROM OTTUMWA OVER TO LAMONI...WITH DANGEROUS
ACCUMULATIONS OF FREEZING RAIN...BETWEEN ONE HALF INCH AND NEARLY
ONE INCH. THE CULPRIT HAS BEEN WELL ADVERTISED FOR A FEW DAYS NOW.
THE NORTHERN BRANCH OF POLAR WESTERLIES WILL SEND A SHORTWAVE ACROSS
THE NRN CONUS PROVIDING A REINFORCING SHOT OF MODERATED ARCTIC AIR
AND HELPING TO TIGHTEN BAROCLINIC ZONE OVER OR JUST TO THE SOUTHEAST
OF CWA...DEPENDING ON WHAT LEVEL YOU ARE AT. MEANWHILE...ENERGY
EJECTING FROM DEEP WRN CONUS TROUGH IN THE SOUTHERN BRANCH OF THE
WESTERLIES WILL BRING PRECIPITABLE WATER VALUES 200 PERCENT OF
NORMAL INTO SOUTHERN PORTIONS OF CENTRAL IOWA BY TUESDAY MORNING.
ISENTROPIC PROGS INDICATE A QUICK SATURATING THROUGH A DEEP COLUMN
EARLY THIS EVENING FROM THE SOUTH TO NORTH. SLOPING FRONTOGENETICAL
FORCING FAIRLY STRONG OVER THE AREA 06-18Z ALONG WITH ELEVATED
INSTABILITY. MODEL SOUNDINGS CAME IN THIS EVENING WITH A LESS
PRONOUNCED WARM NOSE IN CENTRAL IA...WHICH WILL MAKE PRECIPITATION
TYPE VERY DIFFICULT...EXCEPT IN THE FAR SOUTH AND SOUTHEAST WHERE
ITS PRACTICALLY A LOCK TO SEE ALL FREEZING RAIN UNTIL THE END WHEN
SOME SLEET AND SNOW MIXES IN TUESDAY AFTN. FEELING IS THAT EVEN
WITH WARMER NAM SOUNDINGS OVER DSM METRO AND SURROUNDING
LOCATIONS...STRONG LIFT WILL COMPENSATE FOR SMALL AREA ABOVE
FREEZING AND ACTUALLY KEEP VERTICAL PROFILE AT OR BELOW FREEZING
BY LATE TONIGHT...SIMILAR TO GFS PROFILES. 00Z MODELS AND ENSEMBLES
HAVE COME IN GOOD AGREEMENT WITH TRENDING HEAVY PRECIPITATION
FIELD FARTHER NORTHWEST. THE QUESTION IS JUST HOW HEAVY WILL THE
PRECIPITATION BE AND HOW FAR NORTHWEST WILL IT EXTEND. SOUNDINGS
APPEAR TO SUPPORT ANY LIGHT PRECIP ACROSS THE SRN HALF OF IA EARLY
TONIGHT TO BE IN THE FORM OF FREEZING RAIN. BUFR SOUNDINGS AND
COBB TECHNIQUE PRECIP TYPE DO SUGGEST THAT THERE WILL BE A ZONE
BETWEEN OTM AND DSM WHERE PRECIP WILL TRANSITION TO ALL SNOW
FAIRLY QUICKLY LATER TONIGHT AS STRONG OMEGA MOVES OVERHEAD AND
COOLS COLUMN. IN FACT...THERE WILL BE PERIODS WHEN DENDRITIC GROWTH
ZONE IS TAPPED FOR HIGHER SNOWFALL RATES AND RATIOS ACROSS CENTRAL
IA LATE TONIGHT AND TUESDAY MORNING. SOUNDINGS ALSO SHOW FAVORABLE
3-8KM VERTICAL WIND PROFILE FOR HEAVY BANDED SNOW ORIENTED
SOUTHWEST TO NORTHEAST. THE INSTABILITY SHOWN IN SOUNDINGS AND IN
CURRENT UPSTREAM LIGHTNING PLOTS GIVE CONCERN FOR THUNDER TO
ACCOMPANY THE PRECIPITATION FROM DSM SOUTHEAST. HOWEVER...RECENT
EVENTS HAVE ALSO SHOWN THIS POTENTIAL AND IT DID NOT MATERIALIZE.
IN COORDINATION WITH NEIGHBORING OFFICES...HAVE LEFT THUNDER
MENTION OUT FOR NOW.

THE RESULT IS THAT WE WILL ISSUE AN ICE STORM WARNING FROM LAMONI
OVER TO OTTUMWA AND POINTS SOUTHEAST FOR HEAVY ICE ACCRUAL FROM
FREEZING RAIN. A WINTER STORM WARNING WILL BE ISSEUD NORTHWEST OF
THAT AREA UP TO THE HWY 30 CORRIDOR IN THE EAST AND INTERSTATE 80
CORRIDOR IN THE WEST...FOR THE COMBINED HAZARDS OF SLEET
ACCUMULATIONS NEAR OR MORE THAN 1/2 INCH AND 3 TO 5 INCHES OF
SNOW. THERE IS ALSO THE LIKELIHOOD OF LIGHT GLAZING FROM FREEZING
RAIN EARLY IN THE EVENT IN THE WINTER STORM WARNING AREA. THERE
WILL BE A GRADIENT THROUGH THE WINTER STORM WARNING AREA...TO THE
SOUTHEAST OF WHICH WILL BE MORE SLEET THAN SNOW...AND TO THE
NORTHWEST OF WHICH WILL BE MORE SNOW THAN SLEET. TOYED AROUND WITH
ISSUING A WINTER STORM WATCH OR SNOW ADVISORY FOR THE NORTHERN
FRINGE OF WARNING AREA...BUT CONFIDENCE NOT HIGH ENOUGH THAT
EITHER CRITERIA WILL BE MET AT THIS TIME. THE DAY SHIFT CAN SEE
LATEST TRENDS AND MAKE A DECISION ON ANY POTENTIAL ADVISORY WHICH
WOULD NOT NEED TO BEGIN UNTIL AFTER MIDNIGHT TONIGHT.

EVENT SHOULD BE WINDING DOWN IN THE WEST BY TUESDAY AFTERNOON AND IN
THE SOUTHEAST BY TUESDAY EVENING. MAIN UPPER LEVEL TROUGH FINALLY
COMES NORTHEAST WEDNESDAY...BUT WILL LIKELY KEEP ANY ADDITIONAL
PRECIP SOUTHEAST OF THE AREA. LITTLE TO NO CHANGES MADE TO FORECAST
BEYOND WEDNESDAY. STILL LOOKS LIKE BELOW NORMAL TEMPERATURES WILL
HANG ON TO THE REGION.

&&

.AVIATION...09/06Z
LOW CIGS WITH OCNL FZDZ OR -SN WILL CONTINUE FOR THE BALANCE OF TNT
THROUGH 11Z...A BRIEF BREAK EXPECTED PRIOR TO NEXT WAVE APPROACHING
FOR THE LATE MORNING HOURS. SOME -SN FOLLOWED BY MORE FZDZ FOR MUCH
OF THE AREA. SOUTHEAST MAY SEE MORE SIGNIFICANT -FZRA AS OVERRUNNING
STRONGER THERE. SOUNDINGS CONTINUE TO SUGGEST MORE FZDZ AFT 23Z
THROUGH 10/06Z AND WILL MAINTAIN LOW CIGS WITH POSSIBLE FZDZ./REV

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WARNING FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY
FOR ADAIR-ADAMS-BOONE-CASS-CLARKE-DALLAS-GUTHRIE-JASPER-MADISON-
MAHASKA-MARION-MARSHALL-POLK-POWESHIEK-RINGGOLD-STORY-TAMA-
TAYLOR-UNION-WARREN.

ICE STORM WARNING FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY FOR
APPANOOSE-DAVIS-DECATUR-LUCAS-MONROE-WAPELLO-WAYNE.

&&

SHORT TERM...KINNEY
LONG TERM...MOYER
AVIATION...REV
Hazardous weather outlook, Dec 9, 3:17 PM CST, 13 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
317 PM CST SUN DEC 9 2007

IAZ004>007-015>017-023>028-033>039-044>050-057>062-102130-
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-
317 PM CST SUN DEC 9 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA
FROM INTERSTATE 80 NORTH.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A CHANCE OF SNOW MONDAY NIGHT AND TUESDAY WITH BEST
CHANCES FROM THE U.S. HIGHWAY 30 CORRIDOR SOUTH WHERE FREEZING
RAIN AND SLEET COULD ALSO OCCUR. LIGHT ACCUMULATIONS OF SNOW CAN
BE RESPECTED NORTH OF U.S. HIGHWAY 30...WITH LIGHT TO MODERATE SNOW
AND SLEET ACCUMULATIONS SOUTH OF THAT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED...HOWEVER REPORTS OF SNOW
AND ICE ACCUMULATIONS ARE APPRECIATED.

IAZ070>075-081>086-092>097-102130-
CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-
MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-
317 PM CST SUN DEC 9 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA
SOUTH OF INTERSTATE 80.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A WINTER STORM WATCH IS IN EFFECT FOR THE AREA MONDAY NIGHT AND
TUESDAY FOR THE POTENTIAL OF DAMAGING ICE ACCUMULATIONS. PLEASE
REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT
WEATHER.GOV/DESMOINES FOR FURTHER DETAILS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED...HOWEVER REPORTS OF SNOW
AND ICE ACCUMULATIONS ARE APPRECIATED.

FAB

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 4:19 AM CSTIce Storm WarningDMXAppanoose, Davis, Decatur, Lucas, Monroe, Wapello and 1 more35 hr
Dec 10, 4:02 PM CSTWinter Weather AdvisoryDMXAudubon, Black Hawk, Bremer, Butler, Calhoun, Carroll and 11 more22 hr

Nearby

Winter Storm Warnings in Iowa, 2007Every winter storm warning in 2007

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.