Alert archive / Iowa / Winter Storm Warnings in 2008
Winter Storm Warning 6, NWS Des Moines, IA
NWS Des Moines, IA issued this winter storm warning at Dec 17, 2008, 3:51 PM CST for 33 counties in Iowa. It took effect at Dec 18, 2008, 6:00 PM CST. It was in force for 15 hr. 55 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 17, 2008, 3:51 PM CST (21:51 UTC)
- In effect from
- Dec 18, 2008, 6:00 PM CST
- Expired
- Dec 19, 2008, 9:00 AM CST
- In force
- 15 hr
- Issued by
- NWS Des Moines, IA
All 33 counties
Audubon County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cerro Gordo County, IA, Crawford County, IA, Dallas County, IA, Emmet County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Jasper County, IA, Kossuth County, IA, Marshall County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Poweshiek County, IA, Sac County, IA, Story County, IA, Tama County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 78 km from the middle of the area, began a volume at 21:52 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 18, 8:10 PM CST | SLEET 0.15 | Slater, IA | GROUND COVERED IN SLEET. HWY 69 SLICK SOUTH OF AMES. |
| Dec 18, 8:24 PM CST | SLEET 0.1 | Johnston, IA | NWS OFFICE. |
| Dec 18, 8:38 PM CST | SLEET 1 | S Guthrie Center, IA | THUNDER SLEET ONGOING. |
| Dec 18, 8:43 PM CST | SLEET 0.3 | Jamaica, IA | THIN COAT OF ICE UNDERNEATH SLEET. |
| Dec 18, 8:45 PM CST | SLEET 0.5 | Des Moines Int Airport, IA | ALSO 0.1 ICE ACCUMULATION. |
| Dec 18, 10:05 PM CST | SLEET 0.25 | 3 Ese Adel, IA | STILL SLEETING HARD |
| Dec 18, 10:28 PM CST | SLEET 0.6 | Des Moines, IA | KCCI REPORT FROM DOWNTOWN STUDIO |
| Dec 18, 10:31 PM CST | SLEET 0.75 | 3 Nnw Ankeny Airport, IA | MINOR ICE ACCUMULATION AS WELL. |
| Dec 18, 10:42 PM CST | SLEET 0.5 | Johnston, IA | NWS OFFICE. |
| Dec 18, 11:28 PM CST | SNOW 3.5 | 5 S Waterloo, IA | |
| Dec 18, 11:59 PM CST | SLEET 1.1 | West Des Moines, IA | REPORTED BY KCCI TV |
| Dec 19, 12:00 AM CST | SLEET 0.8 | Des Moines Int Airport, IA | 0.54 LIQUID EQUIVALENT WITH SLEET AND FREEZING RAIN |
| Dec 19, 12:25 AM CST | SNOW 3 | Waterloo, IA | MEASURED AT KWWL |
| Dec 19, 1:02 AM CST | SLEET 1.3 | Ankeny, IA | IN ADDITION TO 0.1 OF FREEZING RAIN. CURRENTLY FREEZING RAIN FALLING. |
| Dec 19, 1:29 AM CST | SLEET 1 | Windsor Heights, IA | ONE TENTH OF AN INCH OF ICE THE PAST HOUR WITH FREEZING RAIN AND DRIZZLE. |
| Dec 19, 1:42 AM CST | SNOW 4 | Waterloo, IA | MEASURED AT KWWL |
| Dec 19, 1:42 AM CST | SNOW 4.5 | Cedar Falls, IA | REPORTED BY KWWL |
| Dec 19, 1:57 AM CST | SNOW 6 | Aplington, IA | RELAYED BY KWWL |
| Dec 19, 2:28 AM CST | SNOW 5 | Humboldt, IA | DEPUTY ESTIMATED 5 INCHES OF SNOW ON THE GROUND. |
| Dec 19, 2:30 AM CST | SNOW 7.5 | Fort Dodge, IA | WEBSTER COUNTY SHERIFF ESTIMATED 7 TO 8 INCHES OF SNOW ON THE GROUND IN FORT DODGE. |
| Dec 19, 2:34 AM CST | SNOW 6 | Webster City, IA | HAMILTON COUNTY SHERIFF ESTIMATED 6 INCHES OR MORE OF SNOW ON THE GROUND. |
| Dec 19, 2:36 AM CST | SNOW 8 | Rockwell, IA | CALHOUN COUNTY SHERIFF ESTIMATED 8 INCHES OF SNOW ON THE GROUND. |
| Dec 19, 2:39 AM CST | SNOW 6.5 | Schaller, IA | DEPUTY ESTIMATED 6 TO 7 INCHES OF SNOW ON THE GROUND. |
| Dec 19, 2:39 AM CST | SNOW 7 | Sac City, IA | SAC COUNTY SHERIFF ESTIMATED 6 TO 8 INCHES OF SNOW ON THE GROUND IN SAC CITY. |
| Dec 19, 2:42 AM CST | SNOW 5 | Pocahontas, IA | POCAHONTAS SHERIFF ESTIMATED 4 TO 6 INCHES OF SNOW ON THE GROUND IN POCAHONTAS. A DEPUTY ALSO ESTIMATED 6 TO 8 INCHES OF SNOW ELSEWHERE IN THE COUNTY. |
| Dec 19, 2:47 AM CST | SNOW 7.5 | Hampton, IA | FRANKLIN COUNTY SHERIFF ESTIMATED 7 TO 8 INCHES OF SNOW ON THE GROUND IN HAMPTON. DEPUTIES ALSO REPORTED SNOW DRIFTS OVER 2 FEET DEEP ON COUNTY ROADS. |
| Dec 19, 2:52 AM CST | SNOW 8 | Eldora, IA | HARDIN COUNTY SHERIFF ESTIMATED 8 INCHES OF SNOW ON THE GROUND IN ELDORA. |
| Dec 19, 2:54 AM CST | SNOW 4.5 | 7 E Marshalltown Airpor, IA | TRAINED SPOTTER ESTIMATED 4 TO 5 INCHES OF SNOW ON THE GROUND WITH THUNDER CURRENTLY HEARD. |
| Dec 19, 2:55 AM CST | SNOW 5 | Grundy Center, IA | GRUNDY COUNTY SHERIFF ESTIMATED 5 INCHES OF SNOW ON THE GROUND IN GRUNDY CENTER. |
| Dec 19, 2:56 AM CST | SNOW 3.5 | 1 Sse Mason City, IA | TRAINED SPOTTER MEASURED 3.5 INCHES OF SNOW ON THE GROUND. |
| Dec 19, 2:57 AM CST | SNOW 6.5 | Parkersburg, IA | DEPUTY ESTIMATED 6 TO 7 INCHES OF SNOW ON THE GROUND IN PARKERSBURG. |
| Dec 19, 3:00 AM CST | SNOW 5 | Estherville, IA | EMMET COUNTY EMERGENCY MANAGER ESTIMATED 5 INCHES OF SNOW ON THE GROUND. |
| Dec 19, 3:02 AM CST | SNOW 7 | Waverly, IA | BREMER COUNTY SHERIFF ESTIMATED 7 INCHES OF SNOW ON THE GROUND IN WAVERLY. |
| Dec 19, 3:07 AM CST | SNOW 5 | Waterloo, IA | BLACK HAWK COUNTY SHERIFF ESTIMATED 4 TO 6 INCHES OF SNOW ON THE GROUND IN WATERLOO. |
| Dec 19, 3:31 AM CST | SNOW 8.3 | Waverly, IA | RELAYED BY KWWL |
| Dec 19, 3:38 AM CST | SNOW 5.5 | 1 Sse Mason City, IA | TRAINED SPOTTER MEASURED 5.5 INCHES OF SNOW ON THE GROUND. |
| Dec 19, 3:46 AM CST | SLEET 3 | 1 S Perry, IA | DALLAS COUNTY ROAD DEPARTMENT MEASURED 3 INCHES OF SNOW AND SLEET ON THE GROUND...MOST OF IT SLEET...A MILE SOUTH OF PERRY. |
| Dec 19, 4:08 AM CST | SNOW 4 | Denison, IA | CRAWFORD COUNTY SHERIFF ESTIMATED 4 INCHES OF SNOW ON THE GROUND. |
| Dec 19, 4:10 AM CST | SNOW 5 | Carroll, IA | CARROLL POLICE DEPARTMENT ESTIMATED 4 TO 6 INCHES OF SNOW ON THE GROUND. |
| Dec 19, 4:20 AM CST | SNOW 5 | Nevada, IA | STORY COUNTY SHERIFF ESTIMATED 5 INCHES OF SNOW ON THE GROUND WITH SLEET AND FREEZING RAIN AS WELL. |
| Dec 19, 4:22 AM CST | SNOW 6 | 1 Sse Mason City, IA | TRAINED SPOTTER MEASURED 6 INCHES OF SNOW ON THE GROUND. SNOW STILL FALLING HARD WITH VERY LOW VISIBILITY. |
| Dec 19, 4:26 AM CST | SNOW 6 | Evansdale, IA | RELAYED BY KWWL |
| Dec 19, 4:37 AM CST | SNOW 6 | 3 S Evansdale, IA | TRAINED SPOTTER MEASURED AT LEAST 6 INCHES OF SNOW AND REPORTED CONSIDERABLE DRIFTING. |
| Dec 19, 4:54 AM CST | SNOW 10 | Plainfield, IA | |
| Dec 19, 5:48 AM CST | SLEET 2 | Clive, IA | MAINLY SLEET SOME SNOW. RELAYED BY KCCI |
| Dec 19, 6:13 AM CST | SNOW 8 | La Porte City, IA | PUBLIC REPORT OF 8 INCHES OF SNOW IN LA PORTE CITY. RELAYED BY KWWL. |
| Dec 19, 6:13 AM CST | SNOW 9 | Evansdale, IA | PUBLIC REPORT OF 9 INCHES OF SNOW IN EVANSDALE. RELAYED BY KWWL. |
| Dec 19, 6:21 AM CST | SNOW 9.7 | Denver, IA | PUBLIC REPORTS 9.7 INCHES OF SNOW ON THE GROUND IN DENVER. RELAYED BY MEDIA. |
| Dec 19, 7:23 AM CST | SNOW 6 | Fort Dodge, IA | WEBSTER COUNTY EMERGENCY MANAGER ESTIMATES 5 TO 7 INCHES OF SNOW ON THE GROUND WITH SOME DRIFTING. |
| Dec 19, 7:32 AM CST | SNOW 3.6 | Garwin, IA | |
| Dec 19, 7:32 AM CST | SNOW 8 | Estherville, IA | |
| Dec 19, 7:32 AM CST | SNOW 9 | Jewell, IA | |
| Dec 19, 8:01 AM CST | SNOW 7.7 | Eldora, IA | |
| Dec 19, 8:32 AM CST | SNOW 8 | Wnw Fort Dodge, IA | |
| Dec 19, 9:00 AM CST | SNOW 13.4 | Aplington, IA | FROM KWWL TV |
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, 9.9 hours before the alert went out and 248 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1000 m above ground
- 0-6 km bulk shear
- 114 kt
- 0-1 km storm-relative helicity
- -114 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS43 KDMX 172151 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 351 PM CST WED DEC 17 2008 ...SIGNIFICANT ICE AND SNOW STORM EXPECTED THURSDAY AFTERNOON AND NIGHT... .A POTENT WINTER STORM WILL IMPACT IOWA THURSDAY AND THURSDAY NIGHT. EXPECT A VARIETY OF WINTER PRECIPITATION. SIGNIFICANT AMOUNTS OF SNOW AND ICE ARE EXPECTED. EXPECT MAINLY SNOW ACROSS NORTHERN IOWA...SOUTH TO HIGHWAY 20. FROM HIGHWAY 30 DOWN TO INTERSTATE 80...EXPECT A WINTRY MIX WITH SIGNIFICANT AMOUNTS OF SNOW...SLEET...AND FREEZING RAIN. SOUTH OF INTERSTATE 80...PRECIPITATION WILL BE MAINLY IN THE FORM OF FREEZING RAIN...AND WIDESPREAD TRAVEL PROBLEMS AND POWER OUTAGES ARE LIKELY. IAZ070>075-081>086-092>097-180600- /O.UPG.KDMX.WS.A.0008.081218T1800Z-081219T1200Z/ /O.NEW.KDMX.IS.W.0001.081218T1800Z-081219T1200Z/ CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS- MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET... INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA... CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 351 PM CST WED DEC 17 2008 ...ICE STORM WARNING IN EFFECT FROM 12 PM THURSDAY TO 6 AM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED AN ICE STORM WARNING...WHICH IS IN EFFECT FROM 12 PM THURSDAY TO 6 AM CST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. EXPECT FREEZING RAIN TO DEVELOP THURSDAY AFTERNOON AND CONTINUE THURSDAY NIGHT. SIGNIFICANT ICE ACCUMULATIONS ARE EXPECTED...RANGING FROM AROUND A QUARTER INCH NEAR INTERSTATE 80...TO OVER THREE QUARTERS OF AN INCH NEAR THE IOWA MISSOURI BORDER. THE FREEZING RAIN WILL BECOME MIXED WITH OR CHANGE OVER TO SLEET LATER THURSDAY NIGHT...WITH SLEET ACCUMULATIONS FROM A QUARTER TO HALF INCH POSSIBLE MAINLY NEAR INTERSTATE 80. 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...WITH WIDESPREAD POWER OUTAGES. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. $$ IAZ023>028-033>039-044>050-057>062-180600- /O.UPG.KDMX.WS.A.0008.081218T1800Z-081219T1200Z/ /O.NEW.KDMX.WS.W.0006.081218T1800Z-081219T1200Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...SAC CITY...ROCKWELL CITY... FORT DODGE...WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO... DENISON...CARROLL...JEFFERSON...BOONE...AMES...MARSHALLTOWN... TOLEDO...AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... GRINNELL 351 PM CST WED DEC 17 2008 ...WINTER STORM WARNING IN EFFECT FROM 12 PM THURSDAY TO 6 AM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WARNING FOR SNOW...SLEET...AND FREEZING RAIN...WHICH IS IN EFFECT FROM 12 PM THURSDAY TO 6 AM CST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. BETWEEN THE HIGHWAY 3 AND HIGHWAY 30 CORRIDORS...PRECIPITATION WILL BE MAINLY IN THE FORM OF SNOW...WITH ACCUMULATIONS OF 5 TO 7 INCHES LIKELY THROUGH THURSDAY NIGHT. FROM HIGHWAY 30 SOUTH TO INTERSTATE 80...EXPECT A WINTRY MIX OF PRECIPITATION. SNOW AND SLEET ACCUMULATIONS OF 1 TO 4 INCHES ARE EXPECTED...ALONG WITH 1 TO 2 TENTHS OF AN INCH OF FREEZING RAIN NEAR THE INTERSTATE 80 CORRIDOR. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ004>007-015>017-180600- /O.EXT.KDMX.WS.A.0008.081218T2100Z-081219T1200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 351 PM CST WED DEC 17 2008 ...WINTER STORM WATCH NOW IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT... THE WINTER STORM WATCH IS NOW IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT. EXPECT PERIODS OF SNOW THURSDAY AFTERNOON...AND ESPECIALLY THURSDAY NIGHT. LOCALLY HEAVY SNOWFALL AMOUNTS OF 5 TO 7 INCHES ARE POSSIBLE ACROSS NORTHERN IOWA...BEFORE THE SNOW TAPERS OFF FRIDAY MORNING. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$ KINNEY
8 follow-up statements
000 WWUS43 KDMX 180329 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 929 PM CST WED DEC 17 2008 ...SIGNIFICANT ICE AND SNOW STORM EXPECTED THURSDAY AFTERNOON AND NIGHT... .A POTENT WINTER STORM WILL IMPACT IOWA THURSDAY AND THURSDAY NIGHT. EXPECT A VARIETY OF WINTER PRECIPITATION. SIGNIFICANT AMOUNTS OF SNOW AND ICE ARE EXPECTED. EXPECT MAINLY SNOW ACROSS NORTHERN IOWA...SOUTH TO HIGHWAY 20. FROM HIGHWAY 30 DOWN TO INTERSTATE 80...EXPECT A WINTRY MIX WITH SIGNIFICANT AMOUNTS OF SNOW...SLEET...AND FREEZING RAIN. SOUTH OF INTERSTATE 80... PRECIPITATION WILL BE MAINLY IN THE FORM OF FREEZING RAIN...AND WIDESPREAD TRAVEL PROBLEMS AND POWER OUTAGES ARE LIKELY. IAZ070>075-081>086-092>097-181100- /O.CON.KDMX.IS.W.0001.081218T1800Z-081219T1200Z/ CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS- MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET... INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA... CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 929 PM CST WED DEC 17 2008 ...ICE STORM WARNING REMAINS IN EFFECT FROM 12 PM THURSDAY TO 6 AM CST FRIDAY... AN ICE STORM WARNING REMAINS IN EFFECT FROM 12 PM THURSDAY TO 6 AM CST FRIDAY. EXPECT FREEZING RAIN TO DEVELOP THURSDAY AFTERNOON AND CONTINUE THURSDAY NIGHT. SIGNIFICANT ICE ACCUMULATIONS ARE EXPECTED... RANGING FROM AROUND A QUARTER INCH NEAR INTERSTATE 80...TO OVER THREE QUARTERS OF AN INCH NEAR THE IOWA MISSOURI BORDER. THE FREEZING RAIN WILL BECOME MIXED WITH OR CHANGE OVER TO SLEET LATER THURSDAY NIGHT...WITH SLEET ACCUMULATIONS FROM A QUARTER TO HALF INCH POSSIBLE MAINLY NEAR INTERSTATE 80. 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...WITH WIDESPREAD POWER OUTAGES. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. $$ IAZ023>028-033>039-044>050-057>062-181100- /O.CON.KDMX.WS.W.0006.081218T1800Z-081219T1200Z/ 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- 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...BOONE...AMES...MARSHALLTOWN... TOLEDO...AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... GRINNELL 929 PM CST WED DEC 17 2008 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 12 PM THURSDAY TO 6 AM CST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 12 PM THURSDAY TO 6 AM CST FRIDAY. BETWEEN THE HIGHWAY 3 AND HIGHWAY 30 CORRIDORS...PRECIPITATION WILL BE MAINLY IN THE FORM OF SNOW...WITH ACCUMULATIONS OF 5 TO 7 INCHES LIKELY THROUGH THURSDAY NIGHT. FROM HIGHWAY 30 SOUTH TO INTERSTATE 80...EXPECT A WINTRY MIX OF PRECIPITATION. SNOW AND SLEET ACCUMULATIONS OF 1 TO 4 INCHES ARE EXPECTED...ALONG WITH 1 TO 2 TENTHS OF AN INCH OF FREEZING RAIN NEAR THE INTERSTATE 80 CORRIDOR. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ004>007-015>017-181100- /O.CON.KDMX.WS.A.0008.081218T2100Z-081219T1200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 929 PM CST WED DEC 17 2008 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT... A WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT. EXPECT PERIODS OF SNOW THURSDAY AFTERNOON...AND ESPECIALLY THURSDAY NIGHT. LOCALLY HEAVY SNOWFALL AMOUNTS OF 5 TO 7 INCHES ARE POSSIBLE ACROSS NORTHERN IOWA...BEFORE THE SNOW TAPERS OFF FRIDAY MORNING. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$ MJA
000 WWUS43 KDMX 181002 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 402 AM CST THU DEC 18 2008 ...SIGNIFICANT ICE AND SNOW STORM EXPECTED THIS AFTERNOON AND THROUGH FRIDAY MORNING... .A POTENT WINTER STORM WILL IMPACT IOWA. SIGNIFICANT AMOUNTS OF SNOW AND ICE ARE EXPECTED WITH MAINLY SNOW ACROSS NORTHERN IOWA...SOUTH TO HIGHWAY 30. FROM HIGHWAY 30 DOWN TO INTERSTATE 80...EXPECT A WINTRY MIX WITH SNOW...SLEET...AND FREEZING RAIN. SOUTH OF INTERSTATE 80... PRECIPITATION WILL BE MAINLY IN THE FORM OF FREEZING RAIN...AND WIDESPREAD TRAVEL PROBLEMS AND POWER OUTAGES ARE LIKELY. IAZ004>007-015>017-181815- /O.UPG.KDMX.WS.A.0008.081218T2100Z-081219T1200Z/ /O.EXB.KDMX.WS.W.0006.081218T1800Z-081219T1500Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 402 AM CST THU DEC 18 2008 ...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 9 AM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM NOON TODAY TO 9 AM CST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. EXPECT PERIODS OF SNOW THURSDAY AFTERNOON...AND ESPECIALLY THURSDAY NIGHT. LOCALLY HEAVY SNOWFALL AMOUNTS OF 4 TO 7 INCHES ARE POSSIBLE ACROSS THE WARNED AREA...BEFORE THE SNOW TAPERS OFF FRIDAY MORNING. A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. $$ IAZ023>028-033>039-044>050-057>062-181815- /O.EXT.KDMX.WS.W.0006.081218T1800Z-081219T1500Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...SAC CITY...ROCKWELL CITY... FORT DODGE...WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO... DENISON...CARROLL...JEFFERSON...BOONE...AMES...MARSHALLTOWN... TOLEDO...AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... GRINNELL 402 AM CST THU DEC 18 2008 ...WINTER STORM WARNING NOW IN EFFECT FROM NOON TODAY TO 9 AM CST FRIDAY... BETWEEN THE HIGHWAY 3 AND HIGHWAY 30 CORRIDORS...PRECIPITATION WILL BE MAINLY IN THE FORM OF SNOW WITH POTENTIAL THUNDERSNOW. ACCUMULATIONS OF 6 TO 10 INCHES ARE LIKELY THROUGH EARLY FRIDAY MORNING WITH LOCALLY HIGHER AMOUNTS POSSIBLE. FROM HIGHWAY 30 SOUTH TO INTERSTATE 80...EXPECT A WINTRY MIX OF PRECIPITATION. SNOW AND SLEET ACCUMULATIONS OF 1 TO 4 INCHES ARE EXPECTED...ALONG WITH 1 TO 2 TENTHS OF AN INCH OF FREEZING RAIN NEAR THE INTERSTATE 80 CORRIDOR. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ070>075-081>086-092>097-181815- /O.CON.KDMX.IS.W.0001.081218T1800Z-081219T1200Z/ CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS- MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET... INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA... CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 402 AM CST THU DEC 18 2008 ...ICE STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 AM CST FRIDAY... EXPECT FREEZING RAIN TO DEVELOP BY MID AFTERNOON AND CONTINUE THROUGH TONIGHT. SIGNIFICANT ICE ACCUMULATIONS ARE EXPECTED... RANGING FROM AROUND A QUARTER INCH NEAR INTERSTATE 80...TO OVER THREE QUARTERS OF AN INCH NEAR THE IOWA MISSOURI BORDER. THE FREEZING RAIN WILL BECOME MIXED WITH OR CHANGE OVER TO SLEET LATER THURSDAY NIGHT...WITH SLEET ACCUMULATIONS FROM A QUARTER TO HALF INCH POSSIBLE MAINLY NEAR INTERSTATE 80. AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED LATER TODAY AND TONIGHT. COMMERCE WILL LIKELY BE SEVERELY IMPACTED...WITH WIDESPREAD POWER OUTAGES. ICE ACCUMULATIONS AND INCREASING WINDS BY EARLY FRIDAY MORNING WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. $$ REV
000 WWUS43 KDMX 181606 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1006 AM CST THU DEC 18 2008 ...SIGNIFICANT ICE AND SNOW STORM EXPECTED LATE THIS AFTERNOON THROUGH FRIDAY MORNING... .A POTENT WINTER STORM WILL IMPACT IOWA BUT HAS SLOWED DOWN SOME. THUS THE WINTER STORM AND ICE WARNINGS HAVE BEEN DELAYED TO START LATE THIS AFTERNOON. SIGNIFICANT AMOUNTS OF SNOW AND ICE ARE STILL EXPECTED WITH MAINLY SNOW ACROSS NORTHERN IOWA... SOUTH TO HIGHWAY 30. FROM HIGHWAY 30 DOWN TO INTERSTATE 80... EXPECT A WINTRY MIX WITH SNOW...SLEET...AND SOME FREEZING RAIN. SOUTH OF INTERSTATE 80... PRECIPITATION WILL BE MAINLY IN THE FORM OF FREEZING RAIN...AND WIDESPREAD TRAVEL PROBLEMS AND POWER OUTAGES ARE LIKELY. IAZ070>075-081>086-092>097-190015- /O.EXT.KDMX.IS.W.0001.081218T2200Z-081219T1200Z/ CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS- MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET... INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA... CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 1006 AM CST THU DEC 18 2008 ...ICE STORM WARNING NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO 6 AM CST FRIDAY... THE ICE STORM WARNING IS NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO 6 AM CST FRIDAY. FREEZING RAIN IS NOW EXPECTED TO DEVELOP BY LATE AFTERNOON AND CONTINUE THROUGH TONIGHT. SIGNIFICANT ICE ACCUMULATIONS ARE EXPECTED... RANGING FROM BETWEEN ONE AND TWO TENTHS OF AN INCH NEAR INTERSTATE 80...TO NEAR AN INCH NEAR THE IOWA MISSOURI BORDER. THE FREEZING RAIN WILL BECOME MIXED WITH OR CHANGE OVER TO SLEET LATER TONIGHT...WITH SLEET ACCUMULATIONS FROM A QUARTER TO HALF INCH POSSIBLE MAINLY NEAR INTERSTATE 80. TO MAKE MATTERS WORSE...THERE IS ALSO THE POTENTIAL FOR AN ISOLATED THUNDERSTORM OR TWO. IF THIS OCCURS...ICE ACCRUAL WILL OCCUR AT A MUCH FASTER RATE. AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED LATER TODAY AND TONIGHT. COMMERCE WILL LIKELY BE SEVERELY IMPACTED...WITH WIDESPREAD POWER OUTAGES. ICE ACCUMULATIONS AND INCREASING WINDS BY EARLY FRIDAY MORNING WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. $$ IAZ004>007-015>017-023>028-033>039-044>050-057>062-190015- /O.EXT.KDMX.WS.W.0006.081218T2200Z-081219T1500Z/ 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- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL...DES MOINES...NEWTON...GRINNELL 1006 AM CST THU DEC 18 2008 ...WINTER STORM WARNING NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 AM CST FRIDAY... THE WINTER STORM WARNING IS NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 AM CST FRIDAY. THE WINTER STORM TO IMPACT THE AREA WILL BRING A MIX OF WINTER PRECIPITATION. FOR LOCATIONS NORTH OF HIGHWAY 30...THE PRECIPITATION WILL FALL MAINLY AS SNOW WITH 4 TO 7 INCHES POSSIBLE OVER THE WARNED AREA. THERE MAY ALSO BE A BRIEF PERIOD OF SLEET THIS EVENING NEAR THE HIGHWAY 30 CORRIDOR. BETWEEN HIGHWAY 30 AND THE INTERSTATE 80 CORRIDOR...PRECIPITATION IN THE FORM OF SLEET WILL DEVELOP LATE THIS AFTERNOON. THE SLEET MAY MIX WITH FREEZING RAIN THIS EVENING BEFORE CHANGING OVER TO SNOW. TO MAKE MATTERS WORSE...THE POTENTIAL FOR THUNDERSNOW ALSO EXISTS. SNOW ACCUMULATIONS OF 2 TO 4 INCHES OF SNOW ARE LIKELY BY EARLY FRIDAY MORNING. LOCATIONS WHERE THUNDERSNOW OCCURS COULD SEE AS MUCH AS 6 TO 10 INCHES OF SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET... AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ FAB
000 WWUS43 KDMX 181946 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 146 PM CST THU DEC 18 2008 ...SIGNIFICANT ICE AND SNOW STORM EXPECTED THIS EVENING THROUGH FRIDAY MORNING... .A POTENT WINTER STORM WILL IMPACT IOWA BEGINNING THIS EVENING...AND THE WINTER STORM AND ICE WARNINGS HAVE BEEN DELAYED TWO HOURS. SIGNIFICANT AMOUNTS OF SNOW AND ICE ARE STILL EXPECTED WITH MAINLY SNOW ACROSS NORTHERN IOWA... SOUTH TO HIGHWAY 30. FROM HIGHWAY 30 DOWN TO INTERSTATE 80... EXPECT A WINTRY MIX WITH SNOW...SLEET...AND SOME FREEZING RAIN. SOUTH OF INTERSTATE 80... PRECIPITATION WILL BE MAINLY IN THE FORM OF FREEZING RAIN...AND WIDESPREAD TRAVEL PROBLEMS AND POWER OUTAGES ARE LIKELY. IAZ070>075-081>086-092>097-190400- /O.EXT.KDMX.IS.W.0001.081219T0000Z-081219T1200Z/ CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS- MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET... INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA... CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 146 PM CST THU DEC 18 2008 ...ICE STORM WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST FRIDAY... THE ICE STORM WARNING IS NOW IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST FRIDAY. FREEZING RAIN IS NOW EXPECTED TO DEVELOP BY EARLY EVENING AND CONTINUE THROUGH TONIGHT. SIGNIFICANT ICE ACCUMULATIONS ARE EXPECTED... RANGING FROM BETWEEN ONE AND TWO TENTHS OF AN INCH NEAR INTERSTATE 80...TO NEAR AN INCH NEAR THE IOWA MISSOURI BORDER. THE FREEZING RAIN WILL BECOME MIXED WITH OR CHANGE OVER TO SLEET LATER TONIGHT...WITH SLEET ACCUMULATIONS FROM A QUARTER TO HALF INCH POSSIBLE MAINLY NEAR INTERSTATE 80. TO MAKE MATTERS WORSE...THERE IS ALSO THE POTENTIAL FOR AN ISOLATED THUNDERSTORM OR TWO. IF THIS OCCURS...ICE ACCRUAL WILL OCCUR AT A MUCH FASTER RATE. AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED LATER TODAY AND TONIGHT. COMMERCE WILL LIKELY BE SEVERELY IMPACTED...WITH WIDESPREAD POWER OUTAGES. ICE ACCUMULATIONS AND INCREASING WINDS BY EARLY FRIDAY MORNING WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. $$ IAZ004>007-015>017-023>028-033>039-044>050-057>062-190400- /O.EXT.KDMX.WS.W.0006.081219T0000Z-081219T1500Z/ 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- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL...DES MOINES...NEWTON...GRINNELL 146 PM CST THU DEC 18 2008 ...WINTER STORM WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 9 AM CST FRIDAY... THE WINTER STORM WARNING IS NOW IN EFFECT FROM 6 PM THIS EVENING TO 9 AM CST FRIDAY. THE WINTER STORM TO IMPACT THE AREA WILL BRING A MIX OF WINTER PRECIPITATION BEGINNING THIS EVENING. FOR LOCATIONS NORTH OF HIGHWAY 30...THE PRECIPITATION WILL FALL MAINLY AS SNOW WITH 4 TO 7 INCHES POSSIBLE OVER THE WARNED AREA. THERE MAY ALSO BE A BRIEF PERIOD OF SLEET THIS EVENING NEAR THE HIGHWAY 30 CORRIDOR. BETWEEN HIGHWAY 30 AND THE INTERSTATE 80 CORRIDOR...PRECIPITATION IN THE FORM OF SLEET WILL DEVELOP LATE THIS AFTERNOON. THE SLEET MAY MIX WITH FREEZING RAIN THIS EVENING BEFORE CHANGING OVER TO SNOW. TO MAKE MATTERS WORSE...THE POTENTIAL FOR THUNDER SNOW ALSO EXISTS. SNOW ACCUMULATIONS OF 2 TO 4 INCHES OF SNOW ARE LIKELY BY EARLY FRIDAY MORNING. LOCATIONS WHERE THUNDER SNOW OCCURS COULD SEE AS MUCH AS 6 TO 10 INCHES OF SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET... AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$
000 WWUS43 KDMX 190338 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 938 PM CST THU DEC 18 2008 ...SIGNIFICANT ICE AND SNOW STORM TO CONTINUE THROUGH FRIDAY MORNING... .A POTENT WINTER STORM WILL CONTINUE TO IMPACT IOWA THROUGH FRIDAY MORNING. SIGNIFICANT AMOUNTS OF SNOW AND ICE WILL IMPACT THE AREA...WITH THE SNOW ACROSS NORTHERN IOWA...SOUTH TO HIGHWAY 30...A WINTRY MIX OF SNOW...SLEET...AND SOME FREEZING RAIN FROM HIGHWAY 30 DOWN TO INTERSTATE 80. MAINLY FREEZING RAIN IS STILL EXPECTED SOUTH OF INTERSTATE 80. WIDESPREAD TRAVEL PROBLEMS AND POWER OUTAGES ARE LIKELY. IAZ070>075-081>086-092>097-191030- /O.CON.KDMX.IS.W.0001.000000T0000Z-081219T1200Z/ CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS- MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET... INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA... CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 938 PM CST THU DEC 18 2008 ...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY... AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY. FREEZING RAIN WILL CONTINUE ACROSS THE AREA THROUGH TONIGHT. SIGNIFICANT ICE ACCUMULATIONS ARE EXPECTED...RANGING FROM BETWEEN ONE AND TWO TENTHS OF AN INCH NEAR INTERSTATE 80...TO NEAR AN INCH NEAR THE IOWA MISSOURI BORDER. THE FREEZING RAIN WILL BECOME MIXED WITH OR CHANGE OVER TO SLEET LATER TONIGHT...WITH SLEET ACCUMULATIONS FROM A QUARTER TO HALF INCH POSSIBLE MAINLY NEAR INTERSTATE 80. TO MAKE MATTERS WORSE...THERE IS ALSO THE POTENTIAL FOR AN ISOLATED THUNDERSTORM OR TWO. ICE ACCRUAL WILL OCCUR AT A MUCH FASTER RATE IN AREAS THAT RECEIVE RUMBLES OF THUNDER. AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED LATER TODAY AND TONIGHT. COMMERCE WILL LIKELY BE SEVERELY IMPACTED...WITH WIDESPREAD POWER OUTAGES. ICE ACCUMULATIONS AND INCREASING WINDS BY EARLY FRIDAY MORNING WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. $$ IAZ004>007-015>017-023>028-033>039-044>050-057>062-191030- /O.CON.KDMX.WS.W.0006.000000T0000Z-081219T1500Z/ 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- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL...DES MOINES...NEWTON...GRINNELL 938 PM CST THU DEC 18 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY. A MIX OF WINTER PRECIPITATION WILL CONTINUE MAINLY ALONG THE HIGHWAY 30 CORRIDOR THROUGH MIDNIGHT. LOCATIONS NORTH OF HIGHWAY 30...MAINLY SNOW IS EXPECTED...WITH 4 TO 8 INCHES POSSIBLE OVER THE WARNED AREA. BETWEEN HIGHWAY 30 AND THE INTERSTATE 80 CORRIDOR...A PRECIPITATION MIXTURE OF FREEZING RAIN AND SLEET WILL CHANGE OVER TO SNOW LATE TONIGHT. TO MAKE MATTERS WORSE...THE POTENTIAL FOR THUNDER SNOW ALSO EXISTS. SNOW ACCUMULATIONS OF 2 TO 4 INCHES OF SNOW ARE LIKELY BY EARLY FRIDAY MORNING. THUNDER SNOW IS POSSIBLE ACROSS MUCH OF THE WARNED AREA WHERE LOCALIZED HEAVIER AMOUNTS ARE POSSIBLE...IN AREAS WHERE THUNDER SNOW OCCURS AS MUCH AS 6 TO 10 INCHES OF SNOW ARE POSSIBLE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET... AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MJA
000 WWUS43 KDMX 190946 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 346 AM CST FRI DEC 19 2008 ...SIGNIFICANT ICE AND SNOW STORM TO CONTINUE THIS MORNING... .A POTENT WINTER STORM WILL CONTINUE TO IMPACT IOWA THIS MORNING. SIGNIFICANT AMOUNTS OF SNOW AND ICE WILL IMPACT THE AREA...WITH THE SNOW ACROSS NORTHERN IOWA...SOUTH TO HIGHWAY 30...A WINTRY MIX OF SNOW...SLEET...AND SOME FREEZING RAIN FROM HIGHWAY 30 DOWN TO INTERSTATE 80...AND MAINLY FREEZING RAIN SOUTH OF INTERSTATE 80. WIDESPREAD TRAVEL PROBLEMS AND ISOLATED POWER OUTAGES HAVE BEEN REPORTED. IAZ070>075-081>086-092>097-191200- /O.CON.KDMX.IS.W.0001.000000T0000Z-081219T1200Z/ CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS- MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET... INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA... CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 346 AM CST FRI DEC 19 2008 ...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING. FREEZING RAIN WILL CONTINUE ACROSS THE AREA EARLY THIS MORNING...BECOMING MIXED WITH SLEET ALONG AND NORTH OF HIGHWAY 92. SIGNIFICANT ICE ACCUMULATIONS ARE EXPECTED...RANGING FROM BETWEEN ONE AND TWO TENTHS OF AN INCH NEAR INTERSTATE 80...TO NEAR AN INCH NEAR THE IOWA MISSOURI BORDER. SLEET ACCUMULATIONS FROM A QUARTER TO HALF INCH ARE POSSIBLE MAINLY NEAR INTERSTATE 80. TO MAKE MATTERS WORSE...THERE IS ALSO THE POTENTIAL FOR AN ISOLATED THUNDERSTORM OR TWO. ICE ACCRUAL WILL OCCUR AT A MUCH FASTER RATE IN AREAS THAT EXPERIENCE RUMBLES OF THUNDER. AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE OCCURRING. SIGNIFICANT ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED...WITH SCATTERED POWER OUTAGES. $$ IAZ004>007-015>017-023>028-033>039-044>050-057>062-191500- /O.CON.KDMX.WS.W.0006.000000T0000Z-081219T1500Z/ 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- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL...DES MOINES...NEWTON...GRINNELL 346 AM CST FRI DEC 19 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING. A MIX OF WINTER PRECIPITATION WILL CONTINUE MAINLY ALONG THE HIGHWAY 30 CORRIDOR THROUGH MIDNIGHT. AT LOCATIONS NORTH OF HIGHWAY 30 MAINLY SNOW IS EXPECTED...WITH A STORM TOTAL OF 6 TO 10 INCHES OVER THE WARNED AREA. BETWEEN HIGHWAY 30 AND THE INTERSTATE 80 CORRIDOR...SLEET WILL CHANGE OVER TO SNOW THIS MORNING...ALSO POSSIBLY CHANGING TO FREEZING DRIZZLE AT TIMES. TO MAKE MATTERS WORSE...THE POTENTIAL FOR THUNDER SNOW ALSO EXISTS. SLEET AND SNOW ACCUMULATIONS OF 2 TO 4 INCHES LIKELY...WITH HIGHER AMOUNTS POSSIBLE IN LOCATIONS THAT EXPERIENCE RUMBLES OF THUNDER. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET... AND ICE ARE OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ LEE
000 WWUS43 KDMX 191153 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 553 AM CST FRI DEC 19 2008 ...SIGNIFICANT ICE AND SNOW STORM BEGINNING TO MOVE AWAY... .A POTENT WINTER STORM WILL MOVE EASTWARD OUT OF CENTRAL IOWA THIS MORNING. SLEET AND SNOW WILL TAPER OFF DURING THE MORNING HOURS...WITH ADDITIONAL ACCUMULATIONS BEING LIGHT. HOWEVER...GUSTY WINDS WILL CAUSE DRIFTING OF SNOW...AND MANY ROADS REMAIN VERY HAZARDOUS OR IMPASSIBLE. IAZ070>075-081>086-092>097-191300- /O.EXP.KDMX.IS.W.0001.000000T0000Z-081219T1200Z/ CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS- MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET... INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA... CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 553 AM CST FRI DEC 19 2008 ...ICE STORM WARNING WILL EXPIRE AT 6 AM CST EARLY THIS MORNING... THE ICE STORM WARNING WILL EXPIRE AT 6 AM CST EARLY THIS MORNING. FREEZING RAIN HAS ENDED ACROSS THE AREA...WITH LIGHT SLEET AND SNOW EXPECTED TO TAPER OFF THIS MORNING. ONLY LIGHT ADDITIONAL ACCUMULATIONS ARE EXPECTED. HOWEVER...ROADS REMAIN EXTREMELY DANGEROUS OR IMPASSIBLE. $$ IAZ004>007-015>017-023>028-033>039-044>050-057>062-191500- /O.CON.KDMX.WS.W.0006.000000T0000Z-081219T1500Z/ 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- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL...DES MOINES...NEWTON...GRINNELL 553 AM CST FRI DEC 19 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING. SNOW WILL GRADUALLY TAPER OFF FROM WEST TO EAST THIS MORNING...ENDING BEFORE 9 AM. HOWEVER...LIGHT ADDITIONAL ACCUMULATIONS WILL OCCUR MAINLY EAST OF INTERSTATE 35 BEFORE THE SNOW ENDS...AND GUSTY WINDS THIS MORNING WILL CAUSE CONSIDERABLE DRIFTING OF SNOW ESPECIALLY NORTH OF HIGHWAY 30 WHERE ACCUMULATIONS HAVE BEEN HIGHEST. MOST ROADS ARE VERY HAZARDOUS OR IMPASSIBLE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET... AND ICE ARE OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ LEE
000 WWUS43 KDMX 191502 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 902 AM CST FRI DEC 19 2008 IAZ004>007-015>017-023>028-033>039-044>050-057>062-191615- /O.EXP.KDMX.WS.W.0006.000000T0000Z-081219T1500Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL...DES MOINES...NEWTON...GRINNELL 902 AM CST FRI DEC 19 2008 ...WINTER STORM WARNING WILL EXPIRE AT 9 AM CST THIS MORNING... THE WINTER STORM WARNING WILL EXPIRE AT 9 AM CST THIS MORNING. THE STORM SYSTEM WHICH BROUGHT MIXED WINTER PRECIPITATION TO CENTRAL IOWA IS PUSHING OFF TO THE EAST. EXCEPT FOR SOME LINGERING SNOW SHOWERS TO THE FAR NORTH...THE PRECIPITATION HAS ENDED ACROSS CENTRAL IOWA. THOSE LOCATIONS THAT DO RECEIVE A SNOW SHOWER SHOULD SEE LITTLE IN THE WAY OF ADDITIONAL ACCUMULATIONS. $$ FAB
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Des Moines, IA wrote its last area forecast discussion before this winter storm warning went out at Dec 17, 3:20 PM CST, 31 minutes earlier.
Area forecast discussion, Dec 17, 3:20 PM CST, 31 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DES MOINES IA 320 PM CST WED DEC 17 2008 .SHORT TERM...TONIGHT RELATIVELY BENIGN FORECAST TONIGHT AS WE ARE IN A LULL AHEAD OF THE THURSDAY/THURSDAY NIGHT SYSTEM. THERE A STILL A COUPLE OF THINGS TO LOOK AT THOUGH FOR TONIGHT. WE WILL TRANSITION INTO A WARM ADVECTION PATTERN BEGINNING AT 00Z AND IN EARNEST BY 09Z. THERE IS NOT MUCH MOISTURE TO SPEAK OF AND LOOKING DOWNSTREAM I SURE DONT SEE A LOT OF CLOUD COVER OUT TO THE W OR SW. SOUNDINGS HOWEVER DO INDICATE THAT...ESPECIALLY AFTER 06Z...SOME MID/HIGH LEVEL MOISTURE MOVES IN...ESPECIALLY SOUTH. SO I WENT WITH PARTLY TO MOSTLY CLOUDY SOUTH MOSTLY CLEAR TO PARTLY CLOUDY NORTH. MINOR ADJUSTMENTS TO TEMPS BUT OVER ALL THEY ARE GOOD. THE OTHER CONCERN SHORT TERM THAT I HAD WAS THE INCREASING SOUTHERLY FLOW AND WARM AIR ALOFT. IF WE MIX SOME OF THAT DOWN AND MOVE IT OVER THE COLD GROUND AND FRESH SNOW PACK WE MAY SEE SOME PATCHY FOG. I PUT IN PATCHY FOG OVER NORTHERN MAINLY LOCATIONS WHERE THE WARM ADVECTION APPEARED A BIT STRONGER. .LONG TERM...THURSDAY THROUGH WEDNESDAY THE MAIN ISSUE WILL BE THE WINTER STORM THURSDAY...BUT TWO MORE SYSTEMS ARE ON THE WAY LATER IN THE FORECAST PERIOD. 12Z MODEL OUTPUT WAS VERY SIMILAR IN TERMS OF THE SFC LOW TRACK ACROSS NORTHERN MISSOURI AND QPF PLACEMENT/AMOUNTS. THE NEW 18Z NAM IS SPLITTING THE CWA WITH PRECIP NORTH AND SOUTH...BUT IS AN OUTLIER AND WILL BE DISCOUNTED FOR THE NEW FORECAST. MODEL BANDED-SNOW CROSS SECTIONS INDICATE A FAIRLY PROLONGED PERIOD OF DECENT FORCING...ESPECIALLY THURSDAY NIGHT...WITH NEGATIVE EPV ALOFT. ELEVATED INSTABILITY WILL BE GREATEST OVER THE SOUTHEAST...WHERE SPC HAS US OUTLOOKED IN GENERAL THUNDER FOR DAY 2. ANY CONVECTION WOULD LOCALLY ENHANCE PRECIP RATES...AND WOULD CAUSE RAPID CHANGES IN PRECIP TYPE. WILL KEEP THUNDER OUT OF GRIDS FOR NOW...AND LET OVERNIGHT SHIFT RE-EVALUATE AND INCLUDE IF COVERAGE/PROBABILITY WARRANT. FAVORED DENDRITIC ZONE OMEGA IS MORE FAVORABLE OVER THE SOUTHEAST WHERE PRECIP WILL BE MOSTLY IN THE FORM OF FREEZING RAIN AND/OR SLEET. AND GIVEN FORECAST SOUNDING THERMAL PROFILES...I DONT EXPECT THE SNOW RATIOS TO GET TOO OUT OF HAND IN THE NORTH. WITH THE AGREEMENT ON THE FARTHER SOUTH SFC LOW TRACK...HAVE TRENDED THE SNOW/MIX/FREEZING RAIN WEATHER GRIDS A BIT FARTHER SOUTH. LOCATIONS NORTH OF HIGHWAY 30 ARE EXPECTED TO BE MAINLY SNOW WITH 5 TO 7 INCH AMOUNTS POSSIBLE. FROM HIGHWAY 30 DOWN TO INTERSTATE 80...EXPECT A MIX OF SNOW/SLEET/FREEZING RAIN...WITH A FEW INCHES OF SNOW POSSIBLE...ALONG WITH A HALF INCH OR MORE OF SLEET SOME LOCATIONS AND UP TO A QUARTER INCH OF ICE. FROM INTERSTATE 80 SOUTH...EXPECT MAINLY FREEZING RAIN...WITH AMOUNTS OVER A QUARTER INCH...AND OVER 3/4 INCH IN FAR SOUTHERN IOWA. FOR QPF...STARTED WITH HPC GUIDANCE THEN REDUCED A BIT. WITH THESE ICE AMOUNTS...SIGNIFICANT TRAVEL PROBLEMS WILL OCCUR...AND DAMAGE TO POWER LINES COULD CAUSE SOME PROLONGED OUTAGES. FOR HEADLINES...WILL GO WITH WINTER STORM WATCH OVER THE NORTHERN 2 TIERS...WITH LESS CONFIDENCE ON SNOWFALL AMOUNTS AND LATER ONSET...FROM 21Z THURSDAY TO 12Z FRIDAY. FROM HIGHWAY 20 TO INTERSTATE 80...WILL ISSUE WINTER STORM WARNING FOR VARIETY OF PRECIP TYPES...FROM 18Z THURSDAY TO 12Z FRIDAY. AND FINALLY...WILL GO WITH ICE STORM WARNING SOUTH OF INTERSTATE 80 FOR THE SAME TIME. LOOKING AHEAD...ANOTHER SYSTEM WILL ARRIVE SATURDAY WITH ANOTHER SHOT OF SNOW...ESPECIALLY NORTH HALF. WINDS WILL INCREASE LATE SATURDAY NIGHT INTO SUNDAY WITH BITTERLY COLD AIR MOVING INTO THE REGION. BLOWING SNOW COULD ALSO BE A MAJOR PROBLEM. THE FINAL STORM WILL IMPACT THE CWA LATE MONDAY THROUGH TUESDAY...AND BITTERLY COLD ARCTIC AIR WILL REMAIN IN PLACE THROUGH AT LEAST WEDNESDAY. && .AVIATION...17/18Z FORECAST PERIOD IS IN THE LULL BEFORE THE DETERIORATING CONDITIONS OF THE STORM. CURRENTLY NOT SEEING A LOT OF MOISTURE IN THE AIRMASS OVER CENTRAL IOWA AND AS WARM AIR ADVECTION BEGINS OVER THE TAF SITES AROUND 18/00Z AND WNDS BECOME MORE S/SW THERE IS A LITTLE INCREASE IN MOISTURE AT THE 10-15K FT LEVEL. THUS SHOULD CONTINUE TO SEE HIGH LEVEL CLOUD COVER OVERNIGHT. THE WARM ADVECTION INTENSIFIES TOWARDS 12Z AND I OPTED TO THROW IN A MENTION OF BR WITH THE WARMER AIR MOVING IN OVER THE FRESH SNOW. MOISTURE REALLY INCREASES TOWARDS 18Z AS DOES LIFT AND INSTABILITY. I BROUGHT IN A TEMPO GROUP MAINLY FOR LOWER CIGS LATE IN THE FORECAST PERIOD BUT PRECIP SHOULD HOLD OFF UNTIL AFTER 18Z...THOUGH NOT MUCH AFTER 18Z. && .DMX WATCHES/WARNINGS/ADVISORIES... WINTER STORM WARNING FROM 12 PM THURSDAY TO 6 AM CST FRIDAY FOR AUDUBON-BLACKHAWK-BOONE-BREMER-BUTLER-CALHOUN-CARROLL-CRAWFORD- DALLAS-FRANKLIN-GREENE-GRUNDY-GUTHRIE-HAMILTON-HARDIN-HUMBOLDT- JASPER-MARSHALL-POCAHONTAS-POLK-POWESHIEK-SAC-STORY-TAMA-WEBSTER- WRIGHT. ICE STORM WARNING FROM 12 PM THURSDAY TO 6 AM CST FRIDAY FOR ADAIR-ADAMS-APPANOOSE-CASS-CLARKE-DAVIS-DECATUR-LUCAS-MADISON- MAHASKA-MARION-MONROE-RINGGOLD-TAYLOR-UNION-WAPELLO-WARREN-WAYNE. WINTER STORM WATCH FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT FOR CERRO GORDO-EMMET-HANCOCK-KOSSUTH-PALO ALTO-WINNEBAGO- WORTH. && SHORT TERM/AVIATION...FAB LONG TERM...KINNEY
Hazardous weather outlook, Dec 17, 8:42 AM CST, 7 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 842 AM CST WED DEC 17 2008 IAZ004>007-015>017-023>028-033>039-181200- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK- 842 AM CST WED DEC 17 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IOWA MAINLY ALONG AND NORTH OF HIGHWAY 20. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A POTENT STORM SYSTEM IS EXPECTED TO IMPACT THE AREA THURSDAY AFTERNOON AND THURSDAY NIGHT. A SWATH OF HEAVY SNOWFALL GREATER THAN 6 INCHES AND SOME ICE AND SLEET ACCUMULATIONS ARE POSSIBLE. EXTREMELY POOR TRAVEL CONDITIONS ARE EXPECTED. ANOTHER ARCTIC COLD SNAP IS ANTICIPATED BY SATURDAY NIGHT. BITTER COLD WIND CHILLS ARE AGAIN POSSIBLE SATURDAY NIGHT AND SUNDAY ALONG WITH ANOTHER CHANCE FOR ACCUMULATING SNOWFALL SATURDAY NIGHT. A WINTER STORM WATCH IS IN EFFECT FOR THE AREA THURSDAY AFTERNOON AND NIGHT. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THOUGH WINTER WEATHER REPORTS WITH AMOUNTS WOULD BE APPRECIATED. A CONFERENCE CALL FOR EMERGENCY MANAGEMENT COORDINATORS WILL BE CONDUCTED AT 2 PM CST THIS AFTERNOON. IAZ044>050-057>062-070>075-081>086-092>097-181200- CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE- DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION- MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD- DECATUR-WAYNE-APPANOOSE-DAVIS- 842 AM CST WED DEC 17 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTH CENTRAL IOWA SOUTH OF HIGHWAY 20. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A POTENT STORM SYSTEM IS EXPECTED TO IMPACT THE AREA THURSDAY AFTERNOON AND THURSDAY NIGHT. A WINTRY MIX IS ANTICIPATED WITH SIGNIFICANT ICING FROM FREEZING RAIN LIKELY ACROSS PORTIONS OF THE AREA IN ADDITION TO SOME SLEET AND SNOW ACCUMULATIONS. EXTREMELY POOR TRAVEL CONDITIONS ALONG WITH POSSIBLE POWER DISRUPTIONS DUE TO ICING MAY OCCUR. ANOTHER ARCTIC COLD SNAP IS ANTICIPATED BY SATURDAY NIGHT. BITTER COLD WIND CHILLS ARE AGAIN POSSIBLE SATURDAY NIGHT AND SUNDAY ALONG WITH ANOTHER CHANCE FOR ACCUMULATING SNOWFALL SATURDAY NIGHT. A WINTER STORM WATCH IS IN EFFECT FOR THE AREA THURSDAY AFTERNOON AND NIGHT. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THOUGH WINTER WEATHER REPORTS WITH AMOUNTS WOULD BE APPRECIATED. A CONFERENCE CALL FOR EMERGENCY MANAGEMENT COORDINATORS WILL BE CONDUCTED AT 2 PM CST THIS AFTERNOON. DONAVON/KINNEY
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 17, 3:51 PM CST | Ice Storm Warning | DMX | Adair, Adams, Appanoose, Cass, Clarke, Davis and 12 more | 38 hr |
Nearby
Winter Storm Warnings in Iowa, 2008Every winter storm warning in 2008
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.