Alert archive / Iowa / Ice Storm Warnings in 2008

Ice Storm Warning 2, NWS Des Moines, IA

December 27, 200831 counties in Iowa

NWS Des Moines, IA issued this ice storm warning at Dec 27, 2008, 7:24 AM CST for 31 counties in Iowa. It was in force for 6 hr. 28 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 27, 2008, 7:24 AM CST (13:24 UTC)
Expired
Dec 27, 2008, 12:59 PM CST
In force
6 hr
Issued by
NWS Des Moines, IA
All 31 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Black Hawk County, IA, Boone County, IA, Cass County, IA, Clarke County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Grundy County, IA, Guthrie County, IA, Hamilton 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), 37 km from the middle of the area, began a volume at 13:26 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 27, 7:35 AM CSTFREEZING RAIN 0.1Grimes, IA
Dec 27, 7:44 AM CSTICE STORM 0Adel, IAONE QUARTER OF AN INCH OF ICE ACCRUAL WITH MIXED FREEZING RAIN AND SLEET OCCURRING.
Dec 27, 8:35 AM CSTICE STORM 0Des Moines, IAUP TO ONE HALF INCH OF ICE COATING TREES NEAR KCCI STUDIOS DOWNTOWN.
Dec 27, 9:00 AM CSTFREEZING RAIN 0.1Adel, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.1Ames, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.1Boone, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.1Centerville, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.1Chariton, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.1Creston, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.1Des Moines, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.1Eldora, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.1Leon, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.1Oskaloosa, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.2Albia, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.2Bedford, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.2Grundy Center, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.2Newton, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.25Corydon, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.25Mount Ayr, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.25Osceola, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.25Tama, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.25Waterloo, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.25Winterset, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.5Corning, IA
Dec 27, 9:00 AM CSTFREEZING RAIN 0.5Indianola, IA
Dec 27, 9:06 AM CSTICE STORM 0Pleasantville, IAUP TO ONE QUARTER INCH OF ICE ACCUMULATION. FREEZING RAIN IS CONTINUING.
Dec 27, 10:44 AM CSTFREEZING RAIN 0.2Montezuma, IAJUST UNDER A QUARTER OF AN INCH OF FREEZING RAIN ACCUMULATION ESTIMATED. SANDED ROADS OK.
Dec 27, 11:00 AM CSTFREEZING RAIN 0.25Waterloo, IADELAYED REPORT. FREEZING RAIN ENDED AROUND 11 AM THIS MORNING.

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 12:00Z, 1.4 hours before the alert went out and 241 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Omaha, NE at 12:00Z on 2008-12-27Temperature 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 12:00Z on 2008-12-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -44 square meters per square second.1939587897117136156175Sfc1 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
1092 m above ground
0-6 km bulk shear
107 kt
0-1 km storm-relative helicity
-44 m²/s²
0-3 km storm-relative helicity
73 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 271324
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
724 AM CST SAT DEC 27 2008

...WINTRY MIX TODAY...CHANGING TO SNOW TONIGHT...

.LOW PRESSURE OVER THE SOUTHWEST U.S. WILL LIFT NORTH INTO IOWA
TODAY. A VARIETY OF WINTER WEATHER IS EXPECTED RANGING FROM
SIGNIFICANT ICE ACCUMULATION OVER THE SOUTHWEST INTO THE SOUTH
CENTRAL AND CENTRAL COUNTIES...TO A MIXTURE OVER MUCH OF THE REST
OF THE SOUTHEAST TWO THIRDS OF THE STATE. 

IAZ036-047-058-059-070>072-081-082-092-093-272100-
/O.UPG.KDMX.WW.Y.0020.000000T0000Z-081227T2100Z/
/O.NEW.KDMX.IS.W.0002.081227T1324Z-081227T2100Z/
HAMILTON-BOONE-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-
TAYLOR-RINGGOLD-
INCLUDING THE CITIES OF...WEBSTER CITY...BOONE...GUTHRIE CENTER...
ADEL...ATLANTIC...GREENFIELD...WINTERSET...CORNING...CRESTON...
BEDFORD...MOUNT AYR
724 AM CST SAT DEC 27 2008

...ICE STORM WARNING IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED AN ICE
STORM WARNING...WHICH IS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON.
THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. 

EXPECT PERIODS OF FREEZING RAIN...MODERATE AT TIMES...THIS
MORNING. THE INTENSITY WILL DECREASE BY LATE MORNING AND THE
PRECIPITATION WILL BECOME MIXED WITH SLEET AND SNOW DURING THE
AFTERNOON. PRECIPITATION WILL CHANGE OVER TO ALL SNOW THIS
EVENING BEFORE TAPERING OFF AFTER MIDNIGHT. ICE ACCUMULATIONS
ONE QUARTER TO AS MUCH AS ONE HALF INCH ARE POSSIBLE...ALONG WITH
MINOR SLEET ACCUMULATIONS. SNOWFALL AMOUNTS WILL VARY FROM A LIGHT
DUSTING IN FAR SOUTHERN IOWA...TO AROUND 3 INCHES IN THE IOWA
FALLS AND WATERLOO AREAS.

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 AND WINDS WILL
LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT
ADD TO THE DANGER.

$$

IAZ037>039-048>050-060-061-073-074-083-084-094-095-272130-
/O.NEW.KDMX.IS.W.0002.081227T1324Z-081227T2100Z/
/O.EXT.KDMX.WW.Y.0020.081227T2100Z-081228T0600Z/
HARDIN-GRUNDY-BLACK HAWK-STORY-MARSHALL-TAMA-POLK-JASPER-WARREN-
MARION-CLARKE-LUCAS-DECATUR-WAYNE-
INCLUDING THE CITIES OF...ELDORA...GRUNDY CENTER...WATERLOO...
AMES...MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...INDIANOLA...
KNOXVILLE...OSCEOLA...CHARITON...LEON...CORYDON
724 AM CST SAT DEC 27 2008

...ICE STORM WARNING IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...
...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON
TO MIDNIGHT CST TONIGHT...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED AN ICE
STORM WARNING...WHICH IS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON.
THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 3 PM THIS
AFTERNOON TO MIDNIGHT CST TONIGHT. 

EXPECT PERIODS OF FREEZING RAIN...MODERATE AT TIMES...THIS
MORNING. THE INTENSITY WILL DECREASE BY LATE MORNING AND THE
PRECIPITATION WILL BECOME MIXED WITH SLEET AND SNOW DURING THE
AFTERNOON. PRECIPITATION WILL CHANGE OVER TO ALL SNOW THIS
EVENING BEFORE TAPERING OFF AFTER MIDNIGHT. ICE ACCUMULATIONS
ONE QUARTER TO AS MUCH AS ONE HALF INCH ARE POSSIBLE...ALONG WITH
MINOR SLEET ACCUMULATIONS. SNOWFALL AMOUNTS WILL VARY FROM A LIGHT
DUSTING IN FAR SOUTHERN IOWA...TO AROUND 3 INCHES IN THE IOWA
FALLS AND WATERLOO AREAS.


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.

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 AND WINDS WILL
LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT
ADD TO THE DANGER.

$$

IAZ062-075-085-086-096-097-272100-
/O.NEW.KDMX.IS.W.0002.081227T1324Z-081227T2100Z/
POWESHIEK-MAHASKA-MONROE-WAPELLO-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...GRINNELL...OSKALOOSA...ALBIA...
OTTUMWA...CENTERVILLE...BLOOMFIELD
724 AM CST SAT DEC 27 2008

...ICE STORM WARNING IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED AN ICE
STORM WARNING...WHICH IS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON.

EXPECT PERIODS OF FREEZING RAIN...MODERATE AT TIMES...THIS
MORNING. THE INTENSITY WILL DECREASE BY LATE MORNING AND THE
PRECIPITATION WILL BECOME MIXED WITH SLEET AND SNOW DURING THE
AFTERNOON. PRECIPITATION WILL CHANGE OVER TO ALL SNOW THIS
EVENING BEFORE TAPERING OFF AFTER MIDNIGHT. ICE ACCUMULATIONS
ONE QUARTER TO AS MUCH AS ONE HALF INCH ARE POSSIBLE...ALONG WITH
MINOR SLEET ACCUMULATIONS. 

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 AND WINDS WILL
LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT
ADD TO THE DANGER.

$$

IAZ007-017-026>028-272130-
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0900Z/
WORTH-CERRO GORDO-FRANKLIN-BUTLER-BREMER-
INCLUDING THE CITIES OF...NORTHWOOD...MASON CITY...HAMPTON...
ALLISON...WAVERLY
724 AM CST SAT DEC 27 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 AM CST SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 AM CST SUNDAY. 

SOME LIGHT AMOUNTS OF FREEZING RAIN AND SLEET ARE POSSIBLE THIS
AFTERNOON...MAINLY IN THE ALLISON AND WAVERLY AREAS. HOWEVER...
THE MAIN IMPACT WILL BE SNOW...ESPECIALLY THIS EVENING. EXPECT
TOTAL AMOUNTS AROUND 2 TO 4 INCHES ACROSS AREAS FROM MASON CITY...
 TO HAMPTON AND WAVERLY...BEFORE THE SNOW TAPERS OFF EARLY SUNDAY
MORNING.

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

$$
4 follow-up statements
000 
WWUS43 KDMX 271354
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
754 AM CST SAT DEC 27 2008

...WINTRY MIX TODAY...CHANGING TO SNOW TONIGHT...

.LOW PRESSURE OVER THE SOUTHWEST U.S. WILL LIFT NORTH INTO IOWA
TODAY. A VARIETY OF WINTER WEATHER IS EXPECTED RANGING FROM
SIGNIFICANT ICE ACCUMULATION OVER THE SOUTHWEST INTO THE SOUTH
CENTRAL AND CENTRAL COUNTIES...TO A MIXTURE OVER MUCH OF THE REST
OF THE SOUTHEAST TWO THIRDS OF THE STATE.

IAZ037>039-048>050-060-061-073-074-083-084-094-095-272200-
/O.CON.KDMX.IS.W.0002.000000T0000Z-081227T2100Z/
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0600Z/
HARDIN-GRUNDY-BLACK HAWK-STORY-MARSHALL-TAMA-POLK-JASPER-WARREN-
MARION-CLARKE-LUCAS-DECATUR-WAYNE-
INCLUDING THE CITIES OF...ELDORA...GRUNDY CENTER...WATERLOO...
AMES...MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...INDIANOLA...
KNOXVILLE...OSCEOLA...CHARITON...LEON...CORYDON
754 AM CST SAT DEC 27 2008

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO MIDNIGHT CST TONIGHT...

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON. A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM
THIS AFTERNOON TO MIDNIGHT CST TONIGHT. 

EXPECT PERIODS OF FREEZING RAIN...MODERATE AT TIMES...THIS
MORNING. THE INTENSITY WILL DECREASE BY LATE MORNING AND THE
PRECIPITATION WILL BECOME MIXED WITH SLEET AND SNOW DURING THE
AFTERNOON. PRECIPITATION WILL CHANGE OVER TO ALL SNOW THIS
EVENING BEFORE TAPERING OFF AFTER MIDNIGHT. ICE ACCUMULATIONS ONE
QUARTER TO AS MUCH AS ONE HALF INCH ARE POSSIBLE...ALONG WITH
MINOR SLEET ACCUMULATIONS. SNOWFALL AMOUNTS WILL VARY FROM A
LIGHT DUSTING IN FAR SOUTHERN IOWA...TO AROUND 3 INCHES IN THE
IOWA FALLS AND WATERLOO AREAS.

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.

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 AND WINDS WILL
LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT
ADD TO THE DANGER.

$$

IAZ036-047-058-059-062-070>072-075-081-082-085-086-092-093-096-
097-272100-
/O.CON.KDMX.IS.W.0002.000000T0000Z-081227T2100Z/
HAMILTON-BOONE-GUTHRIE-DALLAS-POWESHIEK-CASS-ADAIR-MADISON-
MAHASKA-ADAMS-UNION-MONROE-WAPELLO-TAYLOR-RINGGOLD-APPANOOSE-
DAVIS-
INCLUDING THE CITIES OF...WEBSTER CITY...BOONE...GUTHRIE CENTER...
ADEL...GRINNELL...ATLANTIC...GREENFIELD...WINTERSET...OSKALOOSA...
CORNING...CRESTON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...
CENTERVILLE...BLOOMFIELD
754 AM CST SAT DEC 27 2008

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON. 

EXPECT PERIODS OF FREEZING RAIN...MODERATE AT TIMES...THIS
MORNING. THE INTENSITY WILL DECREASE BY LATE MORNING AND THE
PRECIPITATION WILL BECOME MIXED WITH SLEET AND SNOW DURING THE
AFTERNOON. PRECIPITATION WILL CHANGE OVER TO ALL SNOW THIS
EVENING BEFORE TAPERING OFF AFTER MIDNIGHT. ICE ACCUMULATIONS ONE
QUARTER TO AS MUCH AS ONE HALF INCH ARE POSSIBLE...ALONG WITH
MINOR SLEET ACCUMULATIONS. SNOWFALL AMOUNTS WILL VARY FROM A
LIGHT DUSTING IN FAR SOUTHERN IOWA...TO AROUND 3 INCHES IN THE
IOWA FALLS AND WATERLOO AREAS.

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 AND WINDS WILL
LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT
ADD TO THE DANGER.

$$

IAZ007-017-026>028-272200-
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0900Z/
WORTH-CERRO GORDO-FRANKLIN-BUTLER-BREMER-
INCLUDING THE CITIES OF...NORTHWOOD...MASON CITY...HAMPTON...
ALLISON...WAVERLY
754 AM CST SAT DEC 27 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 AM CST SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 AM CST SUNDAY. 

SOME LIGHT AMOUNTS OF FREEZING RAIN AND SLEET ARE POSSIBLE THIS
AFTERNOON...MAINLY IN THE ALLISON AND WAVERLY AREAS. HOWEVER...
THE MAIN IMPACT WILL BE SNOW...ESPECIALLY THIS EVENING. EXPECT
TOTAL AMOUNTS AROUND 2 TO 4 INCHES ACROSS AREAS FROM MASON CITY...
  TO HAMPTON AND WAVERLY...BEFORE THE SNOW TAPERS OFF EARLY
SUNDAY MORNING.

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

$$
000 
WWUS43 KDMX 271611
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1011 AM CST SAT DEC 27 2008

...WINTRY MIX TODAY...CHANGING TO SNOW TONIGHT...

.LOW PRESSURE OVER THE SOUTHWEST U.S. WILL LIFT NORTH INTO IOWA
TODAY. A VARIETY OF WINTER WEATHER IS EXPECTED RANGING FROM
SIGNIFICANT ICE ACCUMULATION TO ACCUMULATING SNOWFALL. ALL
PRECIPITATION IS FORECAST TO END BY LATE TONIGHT.

IAZ037-048-060-073-083-094-272300-
/O.CAN.KDMX.IS.W.0002.000000T0000Z-081227T2100Z/
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0600Z/
HARDIN-STORY-POLK-WARREN-CLARKE-DECATUR-
INCLUDING THE CITIES OF...ELDORA...AMES...DES MOINES...
INDIANOLA...OSCEOLA...LEON
1011 AM CST SAT DEC 27 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO MIDNIGHT CST TONIGHT...
...ICE STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE ICE
STORM WARNING. A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM
3 PM THIS AFTERNOON TO MIDNIGHT CST TONIGHT. 

THE FREEZING RAIN HAS ENDED IN MOST LOCATIONS WITH LITTLE IF ANY
ADDITIONAL ICE ACCUMULATIONS. HOWEVER...SNOW IS FORECAST TO
DEVELOP LATER THIS AFTERNOON AND CONTINUE INTO THE EVENING.
ACCUMULATIONS OF 1 TO 3 INCHES CAN BE EXPECTED DURING THIS TIME.  

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

$$

IAZ036-047-058-059-070>072-081-082-092-093-271715-
/O.CAN.KDMX.IS.W.0002.000000T0000Z-081227T2100Z/
HAMILTON-BOONE-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-
TAYLOR-RINGGOLD-
INCLUDING THE CITIES OF...WEBSTER CITY...BOONE...GUTHRIE CENTER...
ADEL...ATLANTIC...GREENFIELD...WINTERSET...CORNING...CRESTON...
BEDFORD...MOUNT AYR
1011 AM CST SAT DEC 27 2008

...ICE STORM WARNING IS CANCELLED...

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

THE FREEZING RAIN HAS ENDED ACROSS THE AREA...THEREFORE THE
WARNING HAS BEEN CANCELLED.

$$

IAZ038-039-049-050-061-074-084-095-272300-
/O.CON.KDMX.IS.W.0002.000000T0000Z-081227T2100Z/
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0600Z/
GRUNDY-BLACK HAWK-MARSHALL-TAMA-JASPER-MARION-LUCAS-WAYNE-
INCLUDING THE CITIES OF...GRUNDY CENTER...WATERLOO...
MARSHALLTOWN...TOLEDO...NEWTON...KNOXVILLE...CHARITON...CORYDON
1011 AM CST SAT DEC 27 2008

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO MIDNIGHT CST TONIGHT...

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON. A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM
THIS AFTERNOON TO MIDNIGHT CST TONIGHT. 

EXPECT PERIODS OF FREEZING RAIN...MODERATE AT TIMES...FOR THE REST
OF THIS MORNING. THE INTENSITY WILL DECREASE BY MIDDAY AND THE
PRECIPITATION WILL BECOME MIXED WITH SLEET AND SNOW DURING THE
AFTERNOON. PRECIPITATION WILL CHANGE OVER TO ALL SNOW THIS EVENING
BEFORE TAPERING OFF AFTER MIDNIGHT. ICE ACCUMULATIONS ONE QUARTER
TO AS MUCH AS ONE HALF INCH ARE POSSIBLE...ALONG WITH MINOR SLEET
ACCUMULATIONS. SNOWFALL AMOUNTS WILL VARY FROM A LIGHT DUSTING IN
FAR SOUTHERN IOWA...TO AROUND 3 INCHES IN THE WATERLOO AREA.

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.

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. 

$$

IAZ062-075-085-086-096-097-272100-
/O.CON.KDMX.IS.W.0002.000000T0000Z-081227T2100Z/
POWESHIEK-MAHASKA-MONROE-WAPELLO-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...GRINNELL...OSKALOOSA...ALBIA...
OTTUMWA...CENTERVILLE...BLOOMFIELD
1011 AM CST SAT DEC 27 2008

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON. 

EXPECT PERIODS OF FREEZING RAIN...MODERATE AT TIMES...THIS
MORNING. THE INTENSITY WILL DECREASE BY LATE MORNING AND THE
PRECIPITATION WILL BECOME MIXED WITH SLEET AND SNOW DURING THE
AFTERNOON. PRECIPITATION WILL CHANGE OVER TO ALL SNOW THIS
EVENING BEFORE TAPERING OFF AFTER MIDNIGHT. ICE ACCUMULATIONS
ONE QUARTER TO AS MUCH AS ONE HALF INCH ARE POSSIBLE...ALONG WITH
MINOR SLEET ACCUMULATIONS. MINOR SNOW ACCUMULATIONS ARE POSSIBLE
AS WELL.

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. 

$$

IAZ007-017-026>028-272300-
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0900Z/
WORTH-CERRO GORDO-FRANKLIN-BUTLER-BREMER-
INCLUDING THE CITIES OF...NORTHWOOD...MASON CITY...HAMPTON...
ALLISON...WAVERLY
1011 AM CST SAT DEC 27 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 AM CST SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 AM CST SUNDAY. 

SNOW IS EXPECTED TO DEVELOP LATER THIS AFTERNOON AND CONTINUE INTO
THE OVERNIGHT. AT THIS TIME...ACCUMULATIONS OF 2 TO 4 INCHES ARE
POSSIBLE BY EARLY SUNDAY MORNING.  

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

$$
000 
WWUS43 KDMX 271735
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1135 AM CST SAT DEC 27 2008

.LOW PRESSURE OVER THE SOUTHWEST U.S. WILL LIFT NORTH INTO IOWA
TODAY. A VARIETY OF WINTER WEATHER IS EXPECTED RANGING FROM
SIGNIFICANT ICE ACCUMULATION TO ACCUMULATING SNOWFALL. ALL
PRECIPITATION IS FORECAST TO END BY LATE TONIGHT.

IAZ038-039-049-050-061-074-084-095-272200-
/O.CAN.KDMX.IS.W.0002.000000T0000Z-081227T2100Z/
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0600Z/
GRUNDY-BLACK HAWK-MARSHALL-TAMA-JASPER-MARION-LUCAS-WAYNE-
INCLUDING THE CITIES OF...GRUNDY CENTER...WATERLOO...
MARSHALLTOWN...TOLEDO...NEWTON...KNOXVILLE...CHARITON...CORYDON
1135 AM CST SAT DEC 27 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO MIDNIGHT CST TONIGHT...
...ICE STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE ICE
STORM WARNING. A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM
3 PM THIS AFTERNOON TO MIDNIGHT CST TONIGHT. 

THE FREEZING RAIN HAS ENDED ACROSS THE AREA...THEREFORE NO
ADDITIONAL ICE ACCUMULATIONS ARE EXPECTED. HOWEVER...SNOW IS
FORECAST TO DEVELOP BY LATE IN THE AFTERNOON AND CONTINUE INTO THE
OVERNIGHT. SNOW ACCUMULATIONS OF 1 TO 3 INCHES WILL BE POSSIBLE
DURING THIS TIME.  

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

$$

IAZ062-075-085-086-096-097-272100-
/O.CON.KDMX.IS.W.0002.000000T0000Z-081227T2100Z/
POWESHIEK-MAHASKA-MONROE-WAPELLO-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...GRINNELL...OSKALOOSA...ALBIA...
OTTUMWA...CENTERVILLE...BLOOMFIELD
1135 AM CST SAT DEC 27 2008

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON. 

EXPECT PERIODS OF FREEZING RAIN...MODERATE AT TIMES...INTO THE
EARLY AFTERNOON. THE INTENSITY WILL DECREASE EARLY IN THE
AFTERNOON BEFORE ENDING.  ICE ACCUMULATIONS ONE QUARTER TO AS MUCH
AS ONE HALF INCH ARE POSSIBLE...ALONG WITH MINOR SLEET
ACCUMULATIONS. 

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.

$$

IAZ037-048-060-073-083-094-272200-
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0600Z/
HARDIN-STORY-POLK-WARREN-CLARKE-DECATUR-
INCLUDING THE CITIES OF...ELDORA...AMES...DES MOINES...
INDIANOLA...OSCEOLA...LEON
1135 AM CST SAT DEC 27 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO MIDNIGHT CST TONIGHT...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO MIDNIGHT CST TONIGHT. 

SNOW IS FORECAST TO DEVELOP LATER THIS AFTERNOON AND CONTINUE
INTO THE EVENING. ACCUMULATIONS OF 1 TO 3 INCHES CAN BE EXPECTED
DURING THIS TIME.

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

$$

IAZ007-017-026>028-272200-
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0900Z/
WORTH-CERRO GORDO-FRANKLIN-BUTLER-BREMER-
INCLUDING THE CITIES OF...NORTHWOOD...MASON CITY...HAMPTON...
ALLISON...WAVERLY
1135 AM CST SAT DEC 27 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 AM CST SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 AM CST SUNDAY. 

SNOW IS EXPECTED TO DEVELOP LATER THIS AFTERNOON AND CONTINUE
INTO THE OVERNIGHT. AT THIS TIME...ACCUMULATIONS OF 2 TO 4 INCHES
ARE POSSIBLE BY EARLY SUNDAY MORNING.

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

$$

CC
000 
WWUS43 KDMX 271859
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1259 PM CST SAT DEC 27 2008

.LOW PRESSURE OVER THE SOUTHWEST U.S. WILL LIFT NORTH INTO
ILLINOIS THIS AFTERNOON AND INTO THE GREAT LAKES TONIGHT. SNOW IS
EXPECTED TO SPREAD ACROSS PORTIONS OF CENTRAL IOWA LATER THIS
AFTERNOON INTO TONIGHT BEFORE ENDING AFTER MIDNIGHT.  

IAZ062-075-085-086-096-097-272000-
/O.CAN.KDMX.IS.W.0002.000000T0000Z-081227T2100Z/
POWESHIEK-MAHASKA-MONROE-WAPELLO-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...GRINNELL...OSKALOOSA...ALBIA...
OTTUMWA...CENTERVILLE...BLOOMFIELD
1259 PM CST SAT DEC 27 2008

...ICE STORM WARNING IS CANCELLED...

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

FREEZING RAIN HAS MOVED EAST OF THE AREA WITH LITTLE ADDITIONAL
ICE ACCUMULATIONS EXPECTED. SOME LIGHT SNOW IS EXPECTED TO DEVELOP
EARLY THIS EVENING...HOWEVER ACCUMULATIONS WILL BE LIGHT.

$$

IAZ037>039-048>050-060-061-073-074-083-084-094-095-272200-
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0600Z/
HARDIN-GRUNDY-BLACK HAWK-STORY-MARSHALL-TAMA-POLK-JASPER-WARREN-
MARION-CLARKE-LUCAS-DECATUR-WAYNE-
INCLUDING THE CITIES OF...ELDORA...GRUNDY CENTER...WATERLOO...
AMES...MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...INDIANOLA...
KNOXVILLE...OSCEOLA...CHARITON...LEON...CORYDON
1259 PM CST SAT DEC 27 2008

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

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

SNOW IS FORECAST TO DEVELOP BY LATE IN THE AFTERNOON AND CONTINUE
INTO THE OVERNIGHT. SNOW ACCUMULATIONS OF 1 TO 3 INCHES WILL BE
POSSIBLE DURING THIS TIME.

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

$$

IAZ007-017-026>028-272200-
/O.CON.KDMX.WW.Y.0020.081227T2100Z-081228T0900Z/
WORTH-CERRO GORDO-FRANKLIN-BUTLER-BREMER-
INCLUDING THE CITIES OF...NORTHWOOD...MASON CITY...HAMPTON...
ALLISON...WAVERLY
1259 PM CST SAT DEC 27 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
SUNDAY. 

SNOW IS EXPECTED TO DEVELOP LATER THIS AFTERNOON AND CONTINUE
INTO THE OVERNIGHT. AT THIS TIME...ACCUMULATIONS OF 2 TO 4 INCHES
ARE POSSIBLE BY EARLY SUNDAY MORNING.

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

$$

CC

What forecasters said that day

The local office's own words before this ice 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 ice storm warning went out at Dec 27, 5:50 AM CST, 1 hour 34 minutes earlier.

Area forecast discussion, Dec 27, 5:50 AM CST, 1 hour 34 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
550 AM CST SAT DEC 27 2008

.SHORT TERM...TODAY
CDFNT HAS NEARLY EXITED THE CWA WITH COLD AIR ADVANCING MORE IN LINE
WITH THE NAM RATHER THAN THE SLOWER GFS.  WILL CONT TO PUSH COLD AIR
SWD THRU THE DAY.  FIRST ROUND OF WX GOING THRU THE SERN PART OF THE
CWA INVOF THE CDFNT AND JUST POST FROPA.  WILL HAVE TO WAIT FOR THE
UPR LOW OVR SRN CO TO BRING THE NEXT ROUND.  SHUD SEE SOME VIRGA FOR
A WHILE...WITH MAIN PCPN STARTING TO SPREAD TWD 15Z OR SO.  CARRIED
A MIXTURE OF PCPN GRDLY CHNGG OVR TO SNW AS WE MOVE INTO THE EVE
HRS.  WILL HOIST THE WSW FOR POTENTIAL FZRA FM S CNTRL INTO THE NERN
COUNTIES.  DO NOT EXPECT LARGE AMTS...HWVR A FEW HUNDREDTHS OF AN
INCH OF FZRA WARRANTS THE ISSUANCE OF THE ADVY.  WILL START OUT THE
ADVY OVR THE REST OF THE NERN COUNTIES AFT 12Z...WHICH WILL BE FOR A
COMBO OF FZRA...BUT MAINLY MARGINAL SNW AMTS.

.LONG TERM...TONIGHT THROUGH FRIDAY
SWATH OF DEFORMATION ZONE PRECIPITATION WILL BE THE MAIN FOCUS
TONIGHT. FORECAST SOUNDINGS INDICATE LINGERING WARM LAYER ALOFT IN
THE FAR EASTERN COUNTIES WITH SOME SLEET LINGERING INTO THE EARLY
EVENING. AM BANKING ON THE DEF ZONE SNOW AXIS TO SET UP A BIT
FARTHER NW PER THE GFS. THIS WOULD GENERATE MAX 3-4 INCH SNOWFALL
AMOUNTS IN THE MASON CITY/WATERLOO AREAS...WITH ONLY LIGHT AMOUNTS
AFTER MIDNIGHT. WILL CONTINUE WINTER WEATHER ADVISORY THROUGH 06Z
SOUTH OF WATERLOO...AND TO 09Z TO THE NORTHWEST.

NO CHANGES TO FORECAST FROM SUNDAY ON...WITH NEXT CHC OF SNOW LATE
WED/THURS WITH CLIPPER SYSTEM.

.AVIATION...27/12Z
CDFNT ABOUT TO EXIT THE AREA WITH NWLY FLOW OVR SITES.  PROB WILL BE
WITH S/WV ROTATING OUT OF THE SWRN U.S.  WDSPRD SHOWERS AND TSRA IN
THE OTM AREA THRU THE DAY.  AS S/WV LIFTS NWD...MXD PCPN WILL SPREAD
OVR SITES TDA.  PCPN TO CHNG TO SNW LATE TDA AND END FM THE SW
BETWEEN 02Z ADN 08Z.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...

WINTER WEATHER ADVISORY FROM 10 AM THIS MORNING TO MIDNIGHT CST
TONIGHT FOR BLACK HAWK-CLARKE-DECATUR-GRUNDY-HARDIN-JASPER-
LUCAS-MARION-MARSHALL-POLK-STORY-TAMA-WARREN-WAYNE.

WINTER WEATHER ADVISORY FROM 3 PM THIS AFTERNOON TO 3 AM CST SUNDAY
FOR BREMER-BUTLER-CERRO GORDO-FRANKLIN-WORTH.

FLASH FLOOD WATCH THROUGH THIS AFTERNOON FOR APPANOOSE-CLARKE-
DAVIS-DECATUR-JASPER-LUCAS-MAHASKA-MARION-MONROE-POWESHIEK-
RINGGOLD-TAMA-WAPELLO-WARREN-WAYNE.

&&

SHORT TERM...MS DEC 08
AVIATION...DONAVON
LONG TERM...KINNEY
Hazardous weather outlook, Dec 27, 6:42 AM CST, 42 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
642 AM CST SAT DEC 27 2008

IAZ050-061-062-073>075-083>086-093>097-281200-
TAMA-JASPER-POWESHIEK-WARREN-MARION-MAHASKA-CLARKE-LUCAS-MONROE-
WAPELLO-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-
642 AM CST SAT DEC 27 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND
SOUTHERN IOWA...ALONG AND SOUTHEAST OF A LINE FROM MOUNT AYR...TO
INDIANOLA AND TAMA.

.DAY ONE...TODAY AND TONIGHT

SIGNIFICANT SNOW MELT...ADDITIONAL HEAVY RAIN TODAY...AND POSSIBLE
ICE JAMS COULD PRODUCE SHORT TERM FLASH FLOODING. FLOODING WILL
ALSO CONTINUE ALONG SOME CREEKS AND RIVERS...INCLUDING THE
CHARITON RIVER...CEDAR CREEK...AND ENGLISH CREEK. A FLASH FLOOD
WATCH IS IN EFFECT FOR THE AREA. PLEASE REFER TO THE NATIONAL
WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES.

EXPECT A WINTRY MIX OF FREEZING RAIN AND SLEET THIS
MORNING...CHANGING OVER TO SNOW THIS AFTERNOON AND EVENING. ICE
ACCUMULATIONS OF A TENTH OF AN INCH OR MORE ARE EXPECTED...ALONG
WITH MINOR SNOW AND SLEET ACCUMULATIONS. A WINTER WEATHER
ADVISORY IS IN EFFECT FOR A PORTION OF THE AREA. PLEASE REFER TO
THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT REPORTS OF SNOW AND
ICE AMOUNTS AND FLOODING ARE ENCOURAGED.

IAZ007-017-026>028-036>039-047>049-058>060-070>072-081-082-092-
281200-
WORTH-CERRO GORDO-FRANKLIN-BUTLER-BREMER-HAMILTON-HARDIN-GRUNDY-
BLACK HAWK-BOONE-STORY-MARSHALL-GUTHRIE-DALLAS-POLK-CASS-ADAIR-
MADISON-ADAMS-UNION-TAYLOR-
642 AM CST SAT DEC 27 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
IOWA...FROM THE MASON CITY AND WATERLOO AREAS...SOUTH THROUGH THE
DES MOINES AND ATLANTIC AREAS.

.DAY ONE...TODAY AND TONIGHT

A MIX OF FREEZING RAIN...SLEET...AND SNOW IS EXPECTED THIS
MORNING...CHANGING OVER TO ALL SNOW THIS AFTERNOON AND EVENING.
AREAS SOUTH OF HIGHWAY 30 CAN EXPECT ICE AMOUNTS AROUND A TENTH OF
AN INCH OR MORE...ALONG WITH SNOW AND SLEET ACCUMULATIONS UP TO 2
INCHES. LOCATIONS NORTH OF HIGHWAY 30 WILL RECEIVE LESSOR AMOUNTS
OF ICE AND SLEET...AND MORE SNOW. TOTAL AMOUNTS OF 2 TO 4 INCHES
ARE EXPECTED THROUGH TONIGHT. A WINTER WEATHER ADVISORY IS IN
EFFECT FOR THE AREA. PLEASE REFER TO THE NATIONAL WEATHER SERVICE
WEBSITE AT WEATHER.GOV/DESMOINES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT REPORTS OF SNOW AND
ICE AMOUNTS ARE ENCOURAGED.

IAZ004>006-015-016-023>025-033>035-044>046-057-281200-
EMMET-KOSSUTH-WINNEBAGO-PALO ALTO-HANCOCK-POCAHONTAS-HUMBOLDT-
WRIGHT-SAC-CALHOUN-WEBSTER-CRAWFORD-CARROLL-GREENE-AUDUBON-
642 AM CST SAT DEC 27 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND NORTHERN
IOWA.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

KINNEY

In the hours before

Local storm report, Dec 27, 3:08 AM CST, 4 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
308 AM CST SAT DEC 27 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0303 AM     HAIL             3 E CHARITON AIRPORT    41.01N 93.30W
12/27/2008  E0.88 INCH       LUCAS              IA   TRAINED SPOTTER

            DIME TO NICKEL SIZED HAIL.

&&

RK
Local storm report, Dec 27, 6:19 AM CST, 1 hour 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
619 AM CST SAT DEC 27 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0618 AM     FREEZING RAIN    BLOCKTON                40.62N 94.49W
12/27/2008  E0.10 INCH       TAYLOR             IA   CO-OP OBSERVER

&&

RK

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 26, 9:23 PM CSTRiver Flood WarningDMXLucas6 days
Dec 26, 9:47 PM CSTFlash Flood WatchDMXAppanoose, Clarke, Davis, Decatur, Jasper, Lucas and 9 more13 hr
Dec 27, 3:08 AM CSTSevere Thunderstorm WarningDMXLucas, Mahaska, Marion37 min
Dec 27, 4:13 AM CSTWinter Weather AdvisoryDMXAdair, Adams, Black Hawk, Boone, Bremer, Butler and 24 more11 hr
Dec 27, 5:33 AM CSTRiver Flood WarningDMXDallas, Polk6 hr
Dec 27, 11:47 AM CSTRiver Flood WarningDMXDecatur10 hr
Dec 27, 2:32 PM CSTRiver Flood WarningDMXMahaska, Marion20 hr

Nearby

Ice Storm Warnings in Iowa, 2008Every ice 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.