Alert archive / Iowa / Winter Storm Warnings in 2009
Winter Storm Warning 7, NWS Des Moines, IA
NWS Des Moines, IA issued this winter storm warning at Dec 7, 2009, 3:42 PM CST for 51 counties in Iowa. It took effect at Dec 8, 2009, 6:00 AM CST. It was in force for 15 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 7, 2009, 3:42 PM CST (21:42 UTC)
- In effect from
- Dec 8, 2009, 6:00 AM CST
- Expired
- Dec 8, 2009, 9:00 PM CST
- In force
- 15 hr
- Issued by
- NWS Des Moines, IA
All 51 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cerro Gordo County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur 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, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 23 km from the middle of the area, began a volume at 21:40 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 8, 6:25 AM CST | SNOW 2 | Winterset, IA | REPORTED BY KCCI |
| Dec 8, 10:59 AM CST | SNOW 3 | 6 Ssw Ottumwa, IA | 3 INCHES NEW SNOW SINCE MIDNIGHT. |
| Dec 8, 11:25 AM CST | SNOW 2 | 1 E Clive, IA | |
| Dec 8, 11:58 AM CST | SNOW 2 | Estherville, IA | SNOWFALL SINCE 7 AM THIS MORNING. |
| Dec 8, 12:00 PM CST | SNOW 2.7 | Des Moines Int Airport, IA | EVENT TOTAL THUS FAR SINCE LAST EVENING. 0.7 INCHES FROM 6 AM TIL NOON. |
| Dec 8, 12:00 PM CST | SNOW 2.9 | Murray, IA | EVENT TOTAL THUS FAR. CURRENTLY MODERATE SNOW FALLING. |
| Dec 8, 1:00 PM CST | SNOW 1.5 | S Clutier, IA | THIS REPORT WAS STORM TOTAL THROUGH 1 PM. |
| Dec 8, 1:00 PM CST | SNOW 2.5 | Marshalltown, IA | SNOWFALL FOR THIS STORM SO FAR. |
| Dec 8, 1:00 PM CST | SNOW 4 | 1 E Sac City, IA | SNOWFALL SO FAR WITH THIS STORM. |
| Dec 8, 1:31 PM CST | SNOW 3.5 | Bloomfield, IA | SNOW HAS CHANGED TO A SLEET AND FREEZING RAIN MIX. |
| Dec 8, 2:00 PM CST | SNOW 3 | Ottumwa, IA | TOTAL FOR THIS STORM THUS FAR. |
| Dec 8, 2:19 PM CST | FREEZING RAIN 0.01 | Corydon, IA | SNOW HAS CHANGED TO FREEZING RAIN WHICH IS BEGINNING TO COAT SURFACES. |
| Dec 8, 2:21 PM CST | SNOW 2 | Nne Dakota City, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 2:25 PM CST | SNOW 2 | 3 Wnw Buckeye, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 2:25 PM CST | SNOW 3.5 | 5 N Vail, IA | MODERATE SNOW AT THIS TIME |
| Dec 8, 2:31 PM CST | SNOW 2 | Jefferson, IA | |
| Dec 8, 2:32 PM CST | SNOW 3 | 2 W Shell Rock, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 2:36 PM CST | SNOW 3.8 | 2 Wsw Boone Airport, IA | 2.5 INCHES SINCE 8 AM. |
| Dec 8, 2:42 PM CST | SNOW 1.5 | 1 Nne Mason City, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 2:42 PM CST | SNOW 4 | 2 Nnw Winterset, IA | |
| Dec 8, 2:42 PM CST | SNOW 4 | Bedford, IA | |
| Dec 8, 2:42 PM CST | SNOW 4.5 | Audubon, IA | ESTIMATED 4 TO 5 INCHES |
| Dec 8, 2:42 PM CST | SNOW 4.5 | Corning, IA | ESTIMATED 4 TO 5 INCHES |
| Dec 8, 2:42 PM CST | SNOW 5 | Coon Rapids, IA | |
| Dec 8, 2:42 PM CST | SNOW 5.5 | Guthrie Center, IA | ESTIMATED 5 TO 6 INCHES |
| Dec 8, 2:49 PM CST | SNOW 1.5 | 4 Wnw Swea City, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 2:49 PM CST | SNOW 6 | Corning, IA | FOR THIS STORM THUS FAR. TOTAL SNOW ON GROUND 10 IN. |
| Dec 8, 2:53 PM CST | SNOW 4 | N Tripoli, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 3:00 PM CST | SNOW 3.4 | 1 E Clive, IA | |
| Dec 8, 3:01 PM CST | SNOW 1.5 | Sse Buckeye, IA | BEGINNING TO DRIFT. |
| Dec 8, 3:01 PM CST | SNOW 2.5 | 5 Nnw Fort Dodge, IA | SNOWFALL SO FAR WITH THIS STORM. |
| Dec 8, 3:01 PM CST | SNOW 3.5 | 5 Nw Sheffield, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 3:01 PM CST | SNOW 5.5 | Nne Britt, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 3:05 PM CST | SNOW 4 | 1 Wnw Estherville, IA | ROADS SNOW COVERED AND VERY SLICK. |
| Dec 8, 3:12 PM CST | SNOW 1.8 | Waterloo, IA | TRAFFIC MOVING SLOWLY. |
| Dec 8, 3:12 PM CST | SNOW 2 | 1 E Grundy Center, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 3:14 PM CST | SNOW 1.5 | Nw Lake Mills, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 3:15 PM CST | SNOW 7 | Creston, IA | STORM TOTAL SNOW DEPTH...3.5 INCHES SINCE 700 AM. |
| Dec 8, 3:20 PM CST | SNOW 4.8 | Nevada, IA | |
| Dec 8, 3:24 PM CST | SNOW 4 | Clarion, IA | |
| Dec 8, 3:25 PM CST | SNOW 4 | Wsw Ringsted, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 3:36 PM CST | SNOW 2.5 | Pocahontas, IA | FOR THIS STORM THUS FAR. |
| Dec 8, 3:42 PM CST | SNOW 3.7 | 4 Nnw Ankeny Airport, IA | 3.7 INCHES NEW SNOW WITH THIS STORM. 6 INCHES TOTAL ON THE GROUND. |
| Dec 8, 3:51 PM CST | SNOW 5.5 | 2 Ene Urbandale, IA | |
| Dec 8, 3:53 PM CST | SNOW 5 | Gray, IA | NOW SNOWING 1 INCH PER HOUR. EASTERLY WINDS AT AROUND 20 MPH CAUSING DRIFTS 1.5 FEET HIGH AND SEVERAL FEET WIDE. |
| Dec 8, 4:00 PM CST | SNOW 2.8 | 4 Ese Ames, IA | |
| Dec 8, 4:00 PM CST | SNOW 4 | West Des Moines, IA | |
| Dec 8, 4:00 PM CST | SNOW 5 | 3 Sw Clive, IA | OFF DUTY NWS EMPLOYEE REPORTS STORM TOTAL 5.0 INCHES SO FAR. |
| Dec 8, 4:06 PM CST | SNOW 4 | West Des Moines, IA | |
| Dec 8, 4:06 PM CST | SNOW 4.2 | 4 Nnw Ankeny Airport, IA | TRAINED SPOTTER IN ANKENY REPORTS 0.5 INCHES OF SNOW IN THE LAST 20 MINUTES...STORM TOTAL 4.2 INCHES SO FAR. |
| Dec 8, 4:17 PM CST | SNOW 2.5 | Harcourt, IA | COOPERATIVE OBSERVER AT HARCOURT REPORTS 2.5 INCHES OF SNOW SO FAR. |
| Dec 8, 4:29 PM CST | SNOW 5.8 | 1 Nnw Des Moines, IA | LOCAL MEDIA REPORTS 5.75 INCHES OF SNOW SO FAR IN DOWNTOWN DES MOINES. |
| Dec 8, 4:35 PM CST | SNOW 3.5 | 3 Ssw Boone Airport, IA | OFF DUTY NWS EMPLOYEE NEAR BOONE REPORTS 3.5 INCHES SO FAR. |
| Dec 8, 4:55 PM CST | SNOW 5 | 1 E Clive, IA | TRAINED SPOTTER REPORTS 5.0 INCHES OF SNOW SO FAR IN CLIVE. 1.6 INCHES HAS FALLEN SINCE 3 PM. |
| Dec 8, 5:00 PM CST | SNOW 2.7 | 3 Nne Ames, IA | TRAINED SPOTTER REPORTS 2.7 INCHES SO FAR JUST NORTH NORTHEAST OF AMES. |
| Dec 8, 5:00 PM CST | SNOW 5 | Rockwell City, IA | |
| Dec 8, 5:09 PM CST | SNOW 5.9 | West Des Moines, IA | LOCAL MEDIA REPORTS 5.9 INCHES OF SNOW SO FAR IN WEST DES MOINES. |
| Dec 8, 5:10 PM CST | SNOW 5.4 | Murray, IA | PUBLIC REPORTS 5.4 INCHES OF SNOW SO FAR IN MURRAY WITH HEAVY SNOW FALLING CURRENTLY. |
| Dec 8, 5:10 PM CST | SNOW 6 | 3 Ese Adel, IA | OFF DUTY NWS EMPLOYEE REPORTS 6 INCHES OF SNOW SO FAR NEAR ADEL. |
| Dec 8, 5:22 PM CST | SNOW 4.5 | Sw Oskaloosa, IA |
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, 9.7 hours before the alert went out and 230 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
- 612 m above ground
- 0-6 km bulk shear
- 85 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 146 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 072142 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 342 PM CST MON DEC 7 2009 ...SIGNIFICANT AND POTENTIALLY DANGEROUS WINTER STORM LIKELY LATE TONIGHT THROUGH WEDNESDAY... .LOW PRESSURE IS FORECAST TO MOVE OUT OF THE SOUTHERN ROCKIES AND PUSH ACROSS THE SOUTHERN PLAINS INTO THE MIDWEST AND GREAT LAKES REGION FROM LATE TONIGHT INTO WEDNESDAY...IMPACTING CENTRAL IOWA FOR A SIGNIFICANT AMOUNT OF TIME. THE SURFACE LOW IS EXPECTED TO INTENSIFY AS IT TRAVELS EAST DURING THE DAY TUESDAY INTO TUESDAY EVENING...PLACING CENTRAL IOWA IN THE POSITION TO RECEIVE HEAVY SNOW. LATE TUESDAY NIGHT THROUGH WEDNESDAY...AS THE SURFACE LOW PULLS EAST...NORTH TO NORTHWEST WINDS ARE LIKELY TO INCREASE AND POTENTIALLY PRODUCE BLIZZARD CONDITIONS ACROSS IOWA. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-080545- /O.UPG.KDMX.WS.A.0006.091208T0600Z-091210T0000Z/ /O.NEW.KDMX.WS.W.0007.091208T1200Z-091209T1800Z/ /O.NEW.KDMX.BZ.A.0003.091209T0300Z-091210T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- 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...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 342 PM CST MON DEC 7 2009 ...WINTER STORM WARNING IN EFFECT FROM 6 AM TUESDAY TO NOON CST WEDNESDAY... ...BLIZZARD WATCH IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 6 AM TUESDAY TO NOON CST WEDNESDAY. A BLIZZARD WATCH HAS ALSO BEEN ISSUED. THIS BLIZZARD WATCH IS IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY AFTERNOON. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING: LOOK FOR LIGHT SNOW TO DEVELOP OVER MUCH OF IOWA AFTER MIDNIGHT TONIGHT SPREADING NORTH AND EAST TOWARDS THE MORNING HOURS TUESDAY. A LONG DURATION OF LIGHT TO MODERATE SNOW IS EXPECTED LATE TONIGHT THROUGH MIDDAY TUESDAY...BEFORE THE SNOWFALL INTENSIFIES TUESDAY AFTERNOON AND INTO THE EVENING HOURS. THE ACCUMULATING SNOWFALL WILL DIMINISH DURING THE OVERNIGHT HOURS TUESDAY NIGHT INTO WEDNESDAY MORNING...WITH SOME LINGERING SNOW ACROSS THE NORTHEAST PORTION OF THE AREA POSSIBLE THROUGH MIDDAY WEDNESDAY. BLIZZARD CONDITIONS ARE POSSIBLE LATE TUESDAY NIGHT THROUGH WEDNESDAY. * STORM TOTAL ACCUMULATIONS: SNOW ACCUMULATIONS OF 8 TO 12 INCHES ARE ANTICIPATED BEGINNING LATE TONIGHT THROUGH LATE TUESDAY NIGHT. THE HEAVIEST SNOWFALL ACCUMULATIONS ARE FORECAST DURING THE AFTERNOON HOURS TUESDAY AND INTO TUESDAY EVENING WHEN THE BULK OF THE SNOW ACCUMULATIONS WILL OCCUR. THERE IS A POTENTIAL FOR LOCALIZED AREAS RECEIVING OVER A FOOT OF SNOW SOUTH OF HIGHWAY 20. * WINDS/VISIBILITY: NORTH TO NORTHWEST WINDS OF 25 TO 35 MPH...WITH GUSTS AROUND 45 MPH...ARE EXPECTED TO DEVELOP LATE TUESDAY NIGHT...AND CONTINUE INTO WEDNESDAY. VISIBILITY LATE TUESDAY THROUGH WEDNESDAY MAY BE LESS THAN ONE QUARTER MILE DUE TO BLOWING SNOW. * IMPACTS: SIGNIFICANT TRAVEL CONCERNS ARE EXPECTED WITH THIS MAJOR WINTER STORM...LIKELY BEGINNING BY TUESDAY AFTERNOON AND PERSISTING INTO TUESDAY EVENING DURING THE HEAVIEST SNOWFALL ACCUMULATION PERIOD. IN ADDITION TO THE HEAVY SNOW ACCUMULATING ON ROADWAYS...STRONG NORTH TO NORTHWEST WINDS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND NEAR WHITEOUT CONDITIONS LATE TUESDAY NIGHT INTO WEDNESDAY...LEADING TO THE POTENTIAL FOR MAJOR TRAVEL IMPACTS AND ROAD CLOSURES. SNOW DRIFTS OF 8 TO 12 FEET ARE POSSIBLE BY WEDNESDAY. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW AND BLOWING 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. A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES. THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY DANGEROUS. && $$ PODRAZIK/MOYER
8 follow-up statements
000 WWUS43 KDMX 080300 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 900 PM CST MON DEC 7 2009 ...SIGNIFICANT AND POTENTIALLY DANGEROUS WINTER STORM LIKELY LATE TONIGHT THROUGH WEDNESDAY... .LOW PRESSURE...NOW OVER SOUTHERN CALIFORNIA...WILL MOVE THROUGH THE SOUTHERN ROCKIES AND PUSH ACROSS AND SOUTHERN PLAINS LATER TONIGHT AND TUESDAY...THEN INTO THE MIDWEST AND GREAT LAKES REGION TUESDAY NIGHT INTO WEDNESDAY. THIS SYSTEM WILL IMPACT CENTRAL IOWA FOR A SIGNIFICANT AMOUNT OF TIME. THE LOW IS EXPECTED TO INTENSIFY AS IT TRAVELS EAST...PLACING CENTRAL IOWA IN THE POSITION TO RECEIVE HEAVY SNOW. STRONG NORTH TO NORTHWEST WINDS IN THE LOWS WAKE ARE EXPECTED TO PRODUCE BLIZZARD CONDITIONS ACROSS TUESDAY NIGHT INTO WEDNESDAY IOWA. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-081100- /O.CON.KDMX.WS.W.0007.091208T1200Z-091209T1800Z/ /O.CON.KDMX.BZ.A.0003.091209T0300Z-091210T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- 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...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 900 PM CST MON DEC 7 2009 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM TUESDAY TO NOON CST WEDNESDAY... ...BLIZZARD WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM TUESDAY TO NOON CST WEDNESDAY. A BLIZZARD WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY AFTERNOON. * TIMING: LIGHT SNOW WILL OVERSPREAD IOWA TONIGHT...REACHING THE NORTHEAST TUESDAY MORNING. A LONG DURATION OF LIGHT TO MODERATE SNOW IS EXPECTED TO LAST THROUGH MIDDAY TUESDAY...BEFORE THE SNOWFALL INTENSIFIES TUESDAY AFTERNOON AND INTO THE EVENING HOURS. THE ACCUMULATING SNOWFALL WILL DIMINISH DURING THE OVERNIGHT HOURS TUESDAY NIGHT INTO WEDNESDAY MORNING...WITH SOME LINGERING SNOW ACROSS THE NORTHEAST PORTION OF THE AREA POSSIBLE THROUGH MIDDAY WEDNESDAY. BLIZZARD CONDITIONS ARE POSSIBLE LATE TUESDAY NIGHT THROUGH WEDNESDAY. * STORM TOTAL ACCUMULATIONS: SNOW ACCUMULATIONS OF 8 TO 12 INCHES ARE ANTICIPATED BEGINNING LATE TONIGHT THROUGH LATE TUESDAY NIGHT. THE HEAVIEST SNOWFALL ACCUMULATIONS ARE FORECAST DURING THE AFTERNOON HOURS TUESDAY AND INTO TUESDAY EVENING WHEN THE BULK OF THE SNOW ACCUMULATIONS WILL OCCUR. THERE IS A POTENTIAL FOR LOCALIZED AREAS RECEIVING OVER A FOOT OF SNOW SOUTH OF HIGHWAY 20. * WINDS/VISIBILITY: NORTH TO NORTHWEST WINDS OF 25 TO 35 MPH... WITH GUSTS AROUND 45 MPH...ARE EXPECTED TO DEVELOP LATE TUESDAY NIGHT...AND CONTINUE INTO WEDNESDAY. VISIBILITY LATE TUESDAY THROUGH WEDNESDAY MAY FREQUENTLY BE LESS THAN ONE QUARTER MILE DUE TO BLOWING SNOW. * IMPACTS: SIGNIFICANT TRAVEL CONCERNS ARE EXPECTED WITH THIS MAJOR WINTER STORM...LIKELY BEGINNING BY TUESDAY AFTERNOON AND PERSISTING INTO TUESDAY EVENING DURING THE HEAVIEST SNOWFALL ACCUMULATION PERIOD. IN ADDITION TO THE HEAVY SNOW ACCUMULATING ON ROADWAYS...STRONG NORTH TO NORTHWEST WINDS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND NEAR WHITEOUT CONDITIONS LATE TUESDAY NIGHT INTO WEDNESDAY... LEADING TO THE POTENTIAL FOR MAJOR TRAVEL IMPACTS AND ROAD CLOSURES. SNOW DRIFTS OF 8 TO 12 FEET ARE POSSIBLE BY WEDNESDAY. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW AND BLOWING 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. A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES. THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY DANGEROUS. && $$
000 WWUS43 KDMX 080926 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 326 AM CST TUE DEC 8 2009 ...INTENSE AND VERY DANGEROUS WINTER STORM TODAY THROUGH WEDNESDAY... .LOW PRESSURE IN ARIZONA WILL MOVE THROUGH THE SOUTHERN ROCKIES AND PUSH INTO THE SOUTHERN PLAINS BY THIS EVENING...THEN INTO THE MIDWEST AND GREAT LAKES REGION TONIGHT INTO WEDNESDAY. THIS SYSTEM WILL IMPACT CENTRAL IOWA FOR A SIGNIFICANT AMOUNT OF TIME. HEAVY SNOW TODAY AND TONIGHT ALONG WITH STRONG NORTH TO NORTHWEST WINDS BY LATE TONIGHT ARE EXPECTED TO PRODUCE BLIZZARD CONDITIONS TONIGHT INTO WEDNESDAY ACROSS ALL OF CENTRAL IOWA. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-081730- /O.CON.KDMX.WS.W.0007.091208T1200Z-091209T1800Z/ /O.CON.KDMX.BZ.A.0003.091209T0300Z-091210T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- 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...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 326 AM CST TUE DEC 8 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY... ...BLIZZARD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY. A BLIZZARD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY AFTERNOON. * SHORT TERM TRENDS: LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH 7 AM THIS MORNING ACROSS ALL OF CENTRAL IOWA. ACCUMULATIONS OF 1 TO 2 INCHES OF NEW SNOW WILL BE POSSIBLE DURING THIS TIME. VISIBILITIES WILL GENERALLY RANGE FROM 1 TO 2 MILES ALTHOUGH ISOLATED HEAVIER SNOWS IN SOUTHERN IOWA MAY LOWER VISIBILITIES TO LESS THAN A MILE AT TIMES. * TIMING: THE LIGHT TO MODERATE SNOW IS EXPECTED TO LAST THROUGH MIDDAY TODAY...BEFORE THE SNOWFALL INTENSIFIES THIS AFTERNOON AND INTO THE EVENING HOURS. THE ACCUMULATING SNOWFALL WILL DIMINISH ACROSS WESTERN IOWA LATE TONIGHT AND IN NORTHEAST PORTION OF THE AREA BY WEDNESDAY AFTERNOON. BLIZZARD CONDITIONS ARE EXPECTED BY LATE TUESDAY NIGHT THROUGH MUCH OF WEDNESDAY. * STORM TOTAL ACCUMULATIONS: SNOW ACCUMULATIONS OF 10 TO 14 INCHES ARE ANTICIPATED FOR MUCH OF CENTRAL IOWA. THE HEAVIEST SNOWFALL ACCUMULATIONS ARE FORECAST DURING THE LATE AFTERNOON HOURS TODAY THROUGH MIDNIGHT WHEN THE BULK OF THE SNOW ACCUMULATIONS WILL OCCUR. THE BEST THREAT FOR RECEIVING OVER A FOOT OF SNOW IS GENERALLY SOUTH OF HIGHWAY 20. ISOLATED AMOUNTS UP TO 16 INCHES ARE FORECAST FROM EAST OF DES MOINES TO SOUTH OF WATERLOO. * WINDS/VISIBILITY: EAST TO NORTHEAST WINDS AT 10 TO 20 MPH ARE EXPECTED TODAY AND INTO THE EVENING. BY LATE EVENING...NORTH TO NORTHWEST WINDS WILL BEGIN INCREASING AND AFTER MIDNIGHT TONIGHT...NORTHWEST WINDS OF 25 TO 35 MPH... WITH GUSTS OF 45 TO 50 MPH ARE EXPECTED. VISIBILITY LESS THAN ONE QUARTER OF A MILE ARE EXPECTED FROM THE HEAVY SNOW THIS EVENING FROM TIME TO TIME. HOWEVER...BY THE TIME THE WINDS INCREASE OVERNIGHT AND INTO WEDNESDAY...WHITEOUT CONDITIONS WILL BECOME COMMON WITH VISIBILITIES FREQUENTLY NEAR ZERO. * IMPACTS: SIGNIFICANT TRAVEL CONCERNS ARE EXPECTED WITH THIS DANGEROUS WINTER STORM...LIKELY BEGINNING BY THIS AFTERNOON AND PERSISTING INTO THIS EVENING DURING THE HEAVIEST SNOWFALL ACCUMULATION PERIOD. IN ADDITION TO THE HEAVY SNOW ACCUMULATING ON ROADWAYS...VERY STRONG NORTH TO NORTHWEST WINDS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND WHITEOUT CONDITIONS LATE TONIGHT INTO WEDNESDAY... LEADING TO THE POTENTIAL FOR MAJOR TRAVEL IMPACTS AND ROAD CLOSURES. SNOW DRIFTS OF 8 TO 12 FEET ARE POSSIBLE BY WEDNESDAY. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW AND BLOWING 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. A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES. THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY DANGEROUS. && $$ COGIL
000 WWUS43 KDMX 081243 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 643 AM CST TUE DEC 8 2009 ...INTENSE AND VERY DANGEROUS WINTER STORM TODAY THROUGH WEDNESDAY... .LOW PRESSURE IN NORTHERN NEW MEXICO WILL PUSH INTO THE SOUTHERN PLAINS BY THIS EVENING...THEN INTO THE MIDWEST AND GREAT LAKES REGION TONIGHT INTO WEDNESDAY. THIS SYSTEM WILL IMPACT CENTRAL IOWA FOR A SIGNIFICANT AMOUNT OF TIME. HEAVY SNOW TODAY AND TONIGHT ALONG WITH STRONG NORTH TO NORTHWEST WINDS BY LATE TONIGHT ARE EXPECTED TO PRODUCE BLIZZARD CONDITIONS TONIGHT INTO WEDNESDAY ACROSS ALL OF CENTRAL IOWA. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-081900- /O.CON.KDMX.WS.W.0007.000000T0000Z-091209T1800Z/ /O.CON.KDMX.BZ.A.0003.091209T0300Z-091210T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- 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...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 643 AM CST TUE DEC 8 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY... ...BLIZZARD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY. A BLIZZARD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY AFTERNOON. * SHORT TERM TRENDS: LIGHT TO OCCASIONALLY MODERATE SNOW WILL PERSIST ACROSS MUCH OF CENTRAL IOWA THROUGH MID MORNING. SOME INCREASE IN SNOWFALL INTENSITY IS EXPECTED BY MID MORNING IN PORTIONS OF FAR SOUTHERN AND WESTERN IOWA AS HEAVIER SNOW MOVES IN FROM NEBRASKA AND MISSOURI. VISIBILITIES WILL GENERALLY RANGE FROM ONE AND A HALF TO 3 MILES ALTHOUGH AN OCCASIONAL DROP BELOW ONE MILE MAY OCCUR FROM TIME TO TIME...MAINLY IN SOUTH AND WEST IOWA. ADDITIONAL ACCUMULATIONS THROUGH MID MORNING WILL GENERALLY BE AROUND AN INCH OR LESS. * TIMING: THE LIGHT TO MODERATE SNOW IS EXPECTED TO LAST THROUGH MIDDAY TODAY...BEFORE THE SNOWFALL INTENSIFIES THIS AFTERNOON AND INTO THE EVENING HOURS. THE ACCUMULATING SNOWFALL WILL DIMINISH ACROSS WESTERN IOWA LATE TONIGHT AND IN NORTHEAST PORTION OF THE AREA BY WEDNESDAY AFTERNOON. BLIZZARD CONDITIONS ARE EXPECTED BY LATE TUESDAY NIGHT THROUGH MUCH OF WEDNESDAY. * STORM TOTAL ACCUMULATIONS: SNOW ACCUMULATIONS OF 10 TO 14 INCHES ARE ANTICIPATED FOR MUCH OF CENTRAL IOWA. THE HEAVIEST SNOWFALL ACCUMULATIONS ARE FORECAST DURING THE LATE AFTERNOON HOURS TODAY THROUGH MIDNIGHT WHEN THE BULK OF THE SNOW ACCUMULATIONS WILL OCCUR. THE BEST THREAT FOR RECEIVING OVER A FOOT OF SNOW IS GENERALLY SOUTH OF HIGHWAY 20. ISOLATED AMOUNTS UP TO 16 INCHES ARE FORECAST FROM EAST OF DES MOINES TO SOUTH OF WATERLOO. * WINDS/VISIBILITY: EAST TO NORTHEAST WINDS AT 10 TO 20 MPH ARE EXPECTED TODAY AND INTO THE EVENING. BY LATE EVENING...NORTH TO NORTHWEST WINDS WILL BEGIN INCREASING AND AFTER MIDNIGHT TONIGHT...NORTHWEST WINDS OF 25 TO 35 MPH... WITH GUSTS OF 45 TO 50 MPH ARE EXPECTED. VISIBILITY LESS THAN ONE QUARTER OF A MILE ARE EXPECTED FROM THE HEAVY SNOW THIS EVENING FROM TIME TO TIME. HOWEVER...BY THE TIME THE WINDS INCREASE OVERNIGHT AND INTO WEDNESDAY...WHITEOUT CONDITIONS WILL BECOME COMMON WITH VISIBILITIES FREQUENTLY NEAR ZERO. * IMPACTS: SIGNIFICANT TRAVEL CONCERNS ARE EXPECTED WITH THIS DANGEROUS WINTER STORM...LIKELY BEGINNING BY THIS AFTERNOON AND PERSISTING INTO THIS EVENING DURING THE HEAVIEST SNOWFALL ACCUMULATION PERIOD. IN ADDITION TO THE HEAVY SNOW ACCUMULATING ON ROADWAYS...VERY STRONG NORTH TO NORTHWEST WINDS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND WHITEOUT CONDITIONS LATE TONIGHT INTO WEDNESDAY... LEADING TO THE POTENTIAL FOR MAJOR TRAVEL IMPACTS AND ROAD CLOSURES. SNOW DRIFTS OF 8 TO 12 FEET ARE POSSIBLE BY WEDNESDAY. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW AND BLOWING 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. A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES. THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY DANGEROUS. && $$ COGIL
000 WWUS43 KDMX 081634 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1034 AM CST TUE DEC 8 2009 ...AN EPIC AND EXTREMELY DANGEROUS WINTER STORM TODAY THROUGH WEDNESDAY... .INTENSE LOW PRESSURE OVER THE SOUTHERN ROCKIES WILL PUSH ACROSS THE SOUTHERN PLAINS BY TONIGHT...AND CONTINUE TO TRACK EAST NORTHEAST THROUGH THE MIDWEST AND INTO THE GREAT LAKES REGION. THIS SYSTEM WILL IMPACT CENTRAL IOWA FOR A SIGNIFICANT AMOUNT OF TIME. HEAVY SNOW THROUGH TONIGHT ALONG WITH STRONG NORTH TO NORTHWEST WINDS DEVELOPING BY LATE TONIGHT ARE EXPECTED TO PRODUCE BLIZZARD CONDITIONS TONIGHT INTO WEDNESDAY ACROSS ALL OF CENTRAL IOWA. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-090045- /O.UPG.KDMX.BZ.A.0003.091209T0300Z-091210T0000Z/ /O.NEW.KDMX.BZ.W.0003.091209T0300Z-091210T0000Z/ /O.EXT.KDMX.WS.W.0007.000000T0000Z-091209T0300Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- 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...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 1034 AM CST TUE DEC 8 2009 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 PM CST THIS EVENING... ...BLIZZARD WARNING IN EFFECT FROM 9 PM THIS EVENING TO 6 PM CST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 6 PM CST WEDNESDAY. THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 9 PM CST THIS EVENING. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. * SHORT TERM TRENDS: MODERATE SNOW WILL CONTINUE ACROSS MUCH OF CENTRAL IOWA THROUGH THE EARLY AFTERNOON HOURS. THE SNOWFALL INTENSITY IS ANTICIPATED TO INCREASE DURING THE AFTERNOON WITH SNOWFALL RATES NEARING 1 TO 2 INCHES PER HOUR LEADING TO AN ADDITIONAL 3 TO 6 INCHES OF SNOWFALL BY SUNSET. VISIBILITY WILL DROP TO LESS THAN A ONE HALF MILE AT TIMES THIS AFTERNOON AND TONIGHT. * STORM TOTAL ACCUMULATIONS: SNOW ACCUMULATIONS OF 10 TO 14 INCHES ARE ANTICIPATED FOR MUCH OF CENTRAL IOWA. THE BEST THREAT FOR RECEIVING OVER A FOOT OF SNOW IS GENERALLY SOUTH OF HIGHWAY 20. ISOLATED AMOUNTS UP TO 16 INCHES ARE FORECAST FROM EAST OF DES MOINES TO SOUTH OF WATERLOO. * WINDS/VISIBILITY: EAST TO NORTHEAST WINDS AT 10 TO 20 MPH ARE EXPECTED THROUGH THE EVENING HOURS BEFORE SHIFTING NORTH TO NORTHWEST AND INCREASING BY LATE THIS EVENING. LOOK FOR VISIBILITY TO BE REDUCED TO LESS THAN A ONE HALF MILE AT TIMES THIS AFTERNOON AND TONIGHT. NORTH TO NORTHWEST OF 25 TO 35 MPH...WITH GUSTS GREATER THAN 50 MPH ARE EXPECTED OVERNIGHT TONIGHT INTO WEDNESDAY...PRODUCING VISIBILITY LESS THAN ONE QUARTER OF A MILE WITH WHITE OUT CONDITIONS AT TIMES. * IMPACTS: SIGNIFICANT TRAVEL CONCERNS ARE EXPECTED WITH THIS DANGEROUS WINTER STORM...ESPECIALLY DURING THE AFTERNOON HOURS AND TOWARDS RUSH HOUR TONIGHT. IN ADDITION TO THE HEAVY SNOW ACCUMULATING ON ROADWAYS...VERY STRONG NORTH TO NORTHWEST WINDS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND WHITEOUT CONDITIONS LATE TONIGHT INTO WEDNESDAY...LEADING TO THE POTENTIAL FOR MAJOR TRAVEL IMPACTS AND ROAD CLOSURES. SNOW DRIFTS OF 8 TO 15 FEET ARE POSSIBLE BY WEDNESDAY. THE POTENTIAL FOR POWER OUTAGES EXIST AS WELL WITH THE VERY STRONG WINDS. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW AND BLOWING 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. && $$ PODRAZIK
000 WWUS43 KDMX 081949 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 149 PM CST TUE DEC 8 2009 ...AN EPIC AND EXTREMELY DANGEROUS WINTER STORM TODAY THROUGH WEDNESDAY... .INTENSE LOW PRESSURE OVER THE SOUTHERN ROCKIES WILL PUSH ACROSS THE SOUTHERN PLAINS BY TONIGHT...AND CONTINUE TO TRACK EAST NORTHEAST THROUGH THE MIDWEST AND INTO THE GREAT LAKES REGION. THIS SYSTEM WILL IMPACT CENTRAL IOWA FOR A SIGNIFICANT AMOUNT OF TIME. HEAVY SNOW THROUGH TONIGHT ALONG WITH STRONG NORTH TO NORTHWEST WINDS DEVELOPING BY LATE TONIGHT ARE EXPECTED TO PRODUCE BLIZZARD CONDITIONS TONIGHT INTO WEDNESDAY ACROSS ALL OF CENTRAL IOWA. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-090400- /O.CON.KDMX.WS.W.0007.000000T0000Z-091209T0300Z/ /O.CON.KDMX.BZ.W.0003.091209T0300Z-091210T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- 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...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 149 PM CST TUE DEC 8 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 PM CST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING. A BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 PM CST WEDNESDAY. * SHORT TERM TRENDS: A BAND OF MODERATE SNOW WILL AFFECT CENTRAL IOWA FROM INTERSTATE 80 TO HIGHWAY 20 THROUGH THE REST OF THE AFTERNOON. THE SNOWFALL INTENSITY WILL RANGE FROM 1 TO 2 INCHES PER HOUR DURING THE REMAINDER OF THE AFTERNOON THROUGH TONIGHT. AN ADDITIONAL 3 TO 5 INCHES OF NEW SNOW IS EXPECTED THROUGH SUNSET TONIGHT ACROSS MUCH OF THE AREA. VISIBILITY WILL DROP TO LESS THAN A ONE HALF MILE AT TIMES THIS AFTERNOON AND TONIGHT. A MIX OF SLEET...SNOW AND FREEZING RAIN IS EXPECTED ACROSS THE FAR SOUTHEAST PORTIONS OF THE WARNING AREA THROUGH THE REMAINDER OF THE AFTERNOON HOURS. * STORM TOTAL ACCUMULATIONS: SNOW ACCUMULATIONS OF 10 TO 15 INCHES ARE ANTICIPATED FOR MUCH OF CENTRAL IOWA. THE BEST THREAT FOR RECEIVING OVER A FOOT OF SNOW IS GENERALLY SOUTH OF HIGHWAY 20. ISOLATED AMOUNTS UP TO 16 INCHES ARE FORECAST BETWEEN HIGHWAY 34 AND HIGHWAY 30 BY WEDNESDAY MORNING. * WINDS/VISIBILITY: EAST TO NORTHEAST WINDS AT 15 TO 25 MPH ARE EXPECTED THROUGH THE EVENING HOURS BEFORE SHIFTING NORTH TO NORTHWEST AND INCREASING BY LATE THIS EVENING. LOOK FOR VISIBILITY TO BE REDUCED TO LESS THAN A ONE HALF MILE AT TIMES THIS AFTERNOON AND TONIGHT. NORTH TO NORTHWEST OF 25 TO 35 MPH...WITH GUSTS GREATER THAN 50 MPH ARE EXPECTED OVERNIGHT TONIGHT INTO WEDNESDAY...PRODUCING VISIBILITY LESS THAN ONE QUARTER OF A MILE WITH WHITE OUT CONDITIONS AT TIMES. * IMPACTS: SIGNIFICANT TRAVEL CONCERNS ARE EXPECTED WITH THIS DANGEROUS WINTER STORM...ESPECIALLY DURING THE AFTERNOON HOURS AND TOWARDS RUSH HOUR TONIGHT. IN ADDITION TO THE HEAVY SNOW ACCUMULATING ON ROADWAYS...VERY STRONG NORTH TO NORTHWEST WINDS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND WHITEOUT CONDITIONS LATE TONIGHT INTO WEDNESDAY...LEADING TO THE POTENTIAL FOR MAJOR TRAVEL IMPACTS AND ROAD CLOSURES. SNOW DRIFTS OF 8 TO 15 FEET ARE POSSIBLE BY WEDNESDAY. THE POTENTIAL FOR POWER OUTAGES EXIST AS WELL WITH THE VERY STRONG WINDS. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW AND BLOWING 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. && $$ PODRAZIK
000 WWUS43 KDMX 082253 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 453 PM CST TUE DEC 8 2009 ...WINTER STORM TO TRANSITION TO DANGEROUS BLIZZARD TONIGHT... .LOW PRESSURE OVER THE CENTRAL PLAINS WILL STRENGTHEN RAPIDLY AND MOVE NORTHEAST TO NEAR CHICAGO BY WEDNESDAY MORNING. HEAVY SNOW THROUGH TONIGHT ALONG WITH STRONG NORTH TO NORTHWEST WINDS DEVELOPING BY LATE TONIGHT ARE EXPECTED TO PRODUCE BLIZZARD CONDITIONS TONIGHT INTO WEDNESDAY ACROSS ALL OF CENTRAL IOWA. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-090700- /O.CON.KDMX.WS.W.0007.000000T0000Z-091209T0300Z/ /O.CON.KDMX.BZ.W.0003.091209T0300Z-091210T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- 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...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 453 PM CST TUE DEC 8 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 PM CST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING. A BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 PM CST WEDNESDAY. * SHORT TERM TRENDS: MODERATE TO HEAVY SNOWFALL WITH RATES OF 1 TO 2 INCHES PER HOUR CAN BE EXPECTED THROUGH MIDNIGHT. AT LEAST AN ADDITIONAL 3 TO 7 INCHES OF NEW SNOW IS EXPECTED BY MIDNIGHT ACROSS THE AREA...WITH HEAVIEST TOTALS SOUTHEAST OF A LINE FROM DENISON TO MASON CITY. WINDS WILL ALSO BE INCREASING OUT OF THE NORTHEAST GUSTING TO 30 TO 35 MPH AND CREATING NEAR BLIZZARD CONDITIONS THROUGH 9 PM. A MIX OF SLEET...SNOW AND FREEZING RAIN ACROSS THE FAR SOUTHEAST PORTIONS OF THE WARNING AREA NEAR OTTUMWA WILL TRANSITION BACK TO ALL SNOW BY 9 PM. * STORM TOTAL ACCUMULATIONS: SNOW ACCUMULATIONS OF 10 TO 16 INCHES ARE ANTICIPATED FOR MUCH OF CENTRAL IOWA. THE BEST THREAT FOR RECEIVING OVER A FOOT OF SNOW IS GENERALLY SOUTHEAST OF A LINE FROM DENISON TO ALGONA AND NORTHWEST OF A LINE FROM BEDFORD TO GRINNELL. ISOLATED AMOUNTS UP TO 18 INCHES ARE POSSIBLE IN THIS CORRIDOR. * WINDS/VISIBILITY: EAST TO NORTHEAST WINDS AT 15 TO 30 MPH ARE EXPECTED THROUGH THE EVENING HOURS BEFORE SHIFTING NORTH TO NORTHWEST AND INCREASING AFTER 9 PM. WIND SPEEDS OF 25 TO 35 MPH...WITH GUSTS GREATER THAN 50 MPH ARE EXPECTED OVERNIGHT INTO WEDNESDAY...PRODUCING VISIBILITY LESS THAN ONE QUARTER OF A MILE WITH WHITE OUT CONDITIONS AT TIMES. * IMPACTS: SIGNIFICANT TRAVEL CONCERNS ARE EXPECTED WITH THIS DANGEROUS WINTER STORM. IN ADDITION TO THE HEAVY SNOW ACCUMULATING ON ROADWAYS...VERY STRONG NORTH TO NORTHWEST WINDS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND WHITEOUT CONDITIONS LATE TONIGHT INTO WEDNESDAY...LEADING TO THE POTENTIAL FOR MAJOR TRAVEL IMPACTS AND ROAD CLOSURES. SNOW DRIFTS OF 8 TO 15 FEET ARE POSSIBLE BY WEDNESDAY. THE POTENTIAL FOR POWER OUTAGES EXIST AS WELL WITH THE VERY STRONG WINDS. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW AND BLOWING 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. && $$ MOYER
000 WWUS43 KDMX 090116 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 716 PM CST TUE DEC 8 2009 ...WINTER STORM TO TRANSITION TO DANGEROUS BLIZZARD TONIGHT... .LOW PRESSURE OVER THE CENTRAL PLAINS WILL STRENGTHEN RAPIDLY AND MOVE NORTHEAST TO NEAR CHICAGO BY WEDNESDAY MORNING. HEAVY SNOW THROUGH TONIGHT ALONG WITH STRONG NORTH TO NORTHWEST WINDS DEVELOPING BY LATE TONIGHT ARE EXPECTED TO PRODUCE BLIZZARD CONDITIONS TONIGHT INTO WEDNESDAY ACROSS ALL OF CENTRAL IOWA. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-090930- /O.CON.KDMX.WS.W.0007.000000T0000Z-091209T0300Z/ /O.CON.KDMX.BZ.W.0003.091209T0300Z-091210T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- 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...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 716 PM CST TUE DEC 8 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING... ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING. A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST WEDNESDAY. * SHORT TERM TRENDS: MODERATE TO HEAVY SNOWFALL WITH RATES OF 1 TO 2 INCHES PER HOUR CAN BE EXPECTED THROUGH MIDNIGHT FROM DES MOINES TO MASON CITY AND WATERLOO. RELATIVELY LIGHTER SNOWFALL WILL OCCUR ACROSS SOUTHERN IOWA THROUGH 10 PM...THEN PICK BACK UP IN INTENSITY INTO THE EARLY MORNING HOURS. AT LEAST AN ADDITIONAL 3 TO 7 INCHES OF NEW SNOW IS EXPECTED BY MIDNIGHT ACROSS THE AREA...WITH HEAVIEST TOTALS SOUTHEAST OF A LINE FROM DENISON TO MASON CITY. WINDS WILL ALSO BE INCREASING OUT OF THE NORTHEAST GUSTING TO 30 TO 35 MPH AND CREATING NEAR BLIZZARD CONDITIONS THROUGH 9 PM. A MIX OF SLEET...SNOW AND FREEZING RAIN ACROSS THE FAR SOUTHEAST PORTIONS OF THE WARNING AREA NEAR BLOOMFIELD WILL TRANSITION BACK TO ALL SNOW BY 9 PM. * STORM TOTAL ACCUMULATIONS: SNOW ACCUMULATIONS OF 10 TO 16 INCHES ARE ANTICIPATED FOR MUCH OF CENTRAL IOWA. THE BEST THREAT FOR RECEIVING OVER A FOOT OF SNOW IS GENERALLY SOUTHEAST OF A LINE FROM DENISON TO ALGONA AND NORTHWEST OF A LINE FROM BEDFORD TO GRINNELL. ISOLATED AMOUNTS UP TO 18 INCHES ARE POSSIBLE IN THIS CORRIDOR. * WINDS/VISIBILITY: EAST TO NORTHEAST WINDS AT 15 TO 30 MPH ARE EXPECTED THROUGH THE EVENING HOURS BEFORE SHIFTING NORTH TO NORTHWEST AND INCREASING AFTER 9 PM. WIND SPEEDS OF 25 TO 35 MPH...WITH GUSTS GREATER THAN 50 MPH ARE EXPECTED OVERNIGHT INTO WEDNESDAY...PRODUCING VISIBILITY LESS THAN ONE QUARTER OF A MILE WITH WHITE OUT CONDITIONS AT TIMES. * IMPACTS: SIGNIFICANT TRAVEL RESTRICTIONS ARE EXPECTED WITH THIS DANGEROUS WINTER STORM...AND WILL LIKELY BECOME IMPOSSIBLE IN MANY LOCATIONS. IN ADDITION TO THE HEAVY SNOW ACCUMULATING ON ROADWAYS...VERY STRONG NORTH TO NORTHWEST WINDS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND WHITEOUT CONDITIONS LATE TONIGHT INTO WEDNESDAY...LEADING TO THE POTENTIAL FOR MAJOR TRAVEL IMPACTS AND ROAD CLOSURES. SNOW DRIFTS OF 8 TO 15 FEET ARE POSSIBLE BY WEDNESDAY. THE POTENTIAL FOR POWER OUTAGES EXIST AS WELL WITH THE VERY STRONG WINDS. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW AND BLOWING 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. && $$ MOYER
000 WWUS43 KDMX 090313 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 913 PM CST TUE DEC 8 2009 ...EXTREMELY DANGEROUS BLIZZARD CONDITIONS TONIGHT THROUGH WEDNESDAY... .LOW PRESSURE OVER MISSOURI WILL STRENGTHEN RAPIDLY AND MOVE NORTHEAST TO NEAR CHICAGO BY WEDNESDAY MORNING. HEAVY SNOW TONIGHT ALONG WITH STRONG NORTH TO NORTHWEST WINDS DEVELOPING BY LATE TONIGHT ARE EXPECTED TO PRODUCE HAZARDOUS...LIFE THREATENING BLIZZARD CONDITIONS TONIGHT INTO WEDNESDAY ACROSS ALL OF CENTRAL IOWA. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-091115- /O.EXP.KDMX.WS.W.0007.000000T0000Z-091209T0300Z/ /O.CON.KDMX.BZ.W.0003.000000T0000Z-091210T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- 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...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 913 PM CST TUE DEC 8 2009 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST WEDNESDAY... ...WINTER STORM WARNING HAS EXPIRED... THE WINTER STORM WARNING IS NO LONGER IN EFFECT. A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST WEDNESDAY. * SHORT TERM TRENDS: AREAS OF MODERATE TO HEAVY SNOWFALL WITH RATES OF 1 TO 2 INCHES PER HOUR CAN BE EXPECTED THROUGH MIDNIGHT ACROSS MUCH OF CENTRAL IOWA. A BACK EDGE TO THE HEAVIEST SNOW WILL MOVE THROUGH THE REGION SOUTH TO NORTH AFTER MIDNIGHT...BUT LIGHT TO MODERATE SNOWFALL IS ANTICIPATED TO CONTINUE THROUGH AT LEAST 6 AM FOR MOST OF THE AREA. AN ADDITIONAL 4 TO 8 INCHES OF SNOW IS POSSIBLE BY 6 AM WEDNESDAY. WINDS WILL ALSO BE INCREASING OUT OF THE NORTH TO NORTHEAST GUSTING TO 35 TO 40 MPH AND CREATING BLIZZARD CONDITIONS ACROSS AREAS WEST OF INTERSTATE 35 BY MIDNIGHT. THESE HIGHER WINDS WILL MIGRATE EAST ACROSS ALL OF CENTRAL IOWA BY 6 AM. * STORM TOTAL ACCUMULATIONS: SNOW ACCUMULATIONS OF 10 TO 16 INCHES ARE ANTICIPATED FOR MUCH OF CENTRAL IOWA. THE BEST THREAT FOR RECEIVING OVER A FOOT OF SNOW IS GENERALLY SOUTHEAST OF A LINE FROM DENISON TO ALGONA AND NORTHWEST OF A LINE FROM BEDFORD TO GRINNELL. ISOLATED AMOUNTS UP TO 18 INCHES ARE POSSIBLE IN THIS CORRIDOR. * WINDS/VISIBILITY: NORTHEAST TO NORTH WINDS AT 15 TO 30 MPH WITH LOCAL GUSTS TO 45 MPH ARE EXPECTED THROUGH MIDNIGHT...BEFORE SHIFTING TO THE NORTH TO NORTHWEST AND STEADILY INCREASING THROUGH 6 AM. WIND SPEEDS OF 25 TO 35 MPH...WITH GUSTS GREATER THAN 50 MPH ARE EXPECTED OVERNIGHT INTO WEDNESDAY...PRODUCING VISIBILITY LESS THAN ONE QUARTER OF A MILE WITH WHITE OUT CONDITIONS AT TIMES. * IMPACTS: SIGNIFICANT TRAVEL RESTRICTIONS ARE EXPECTED WITH THIS DANGEROUS WINTER STORM...AND WILL LIKELY BECOME IMPOSSIBLE IN MANY LOCATIONS. IN ADDITION TO THE HEAVY SNOW ACCUMULATING ON ROADWAYS...VERY STRONG NORTH TO NORTHWEST WINDS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND WHITEOUT CONDITIONS LATE TONIGHT INTO WEDNESDAY...LEADING TO THE POTENTIAL FOR MAJOR TRAVEL IMPACTS AND ROAD CLOSURES. SNOW DRIFTS OF 8 TO 15 FEET ARE POSSIBLE BY WEDNESDAY. THE POTENTIAL FOR POWER OUTAGES EXIST AS WELL WITH THE VERY STRONG WINDS. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ MOYER
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 7, 11:45 AM CST, 3 hours 57 minutes earlier.
Area forecast discussion, Dec 7, 11:45 AM CST, 3 hours 57 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE DES MOINES IA 1145 AM CST MON DEC 7 2009 ...UPDATED AVIATION DISCUSSION... ...DANGEROUS WINTER STORM STILL ON TRACK FOR TUESDAY AND WEDNESDAY... .SHORT TERM /TONIGHT THROUGH MONDAY/... FIRST ROUND OF WINTER WX IS ON THE WANE ACROSS OUR CWA. WSR-88D REFLECTIVITY AND SURFACE OBS INDICATE THE -SN HAS DECREASING IN INTENSITY AND COVERAGE...WITH SURFACE VSBYS ACROSS THE NORTHWEST 3/4THS OF THE CWA AOB 6SM. WENT AHEAD AND CANCELED THE WINTER WX ADVISORY EARLY DUE TO THIS FACT. ALTHOUGH THE -SN IS WINDING DOWN...PAVEMENT AND WALKING SURFACES WILL REMAIN SLICK FOR AT LEAST THE NEXT FEW HOURS...THOUGH...SO THE MORNING COMMUTE WILL BE SLOWER THAN NORMAL IN SOME AREAS. NORTHERLY TO NORTHWESTERLY WINDS WILL PREVAIL TODAY AS THE SURFACE WX SYSTEM DEPARTS OUR REGION...AND A SURFACE PRESSURE RIDGE BUILDS IN. DECREASE IN CLOUDS WILL BE MINIMAL THOUGH...AS CLOUDINESS FROM THE NEXT WX SYSTEM SPREADS IN THIS AFTERNOON. .LONG TERM /TONIGHT THROUGH SUNDAY/... ALL EYES WILL BE ON INTENSE WINTER STORM SET TO AFFECT MUCH OF THE REGION LATE TONIGHT INTO WEDNESDAY. WILL SEE WAA BEGIN TONIGHT IN RESPONSE TO THE DEEPENING WESTERN SYSTEM. ISENTROPIC LIFT INCREASES DURING THE OVERNIGHT ALONG WITH SOME WEAK QG FORCING. MAY BEGIN TO SEE A FEW FLAKES BEFORE MIDNIGHT IN OUR SOUTHWEST WHERE EARLIEST SATURATION OCCURS. AS FORCING CONTINUES THROUGH THE NIGHT...WL SEE SNOW SPREAD ACROSS THE SOUTHERN HALF TO TWO-THIRDS OF THE STATE BY DAYBREAK TUESDAY. HAVE INCREASED POPS TO CATEGORICAL IN THE SOUTH WITH UP TO AN INCH OF NEW SNOWFALL SOUTH OF I80 BY TUESDAY MORNING. THE LIGHTER SNOW PERSIST INTO TUESDAY MORNING AND SPREADS NORTHWARD ACRS THE ENTIRE CWA AS ISENTROPIC LIFT PERSISTS. HOWEVER...MUCH STRONG Q-G FORCING ARRIVES ON TUESDAY AFTERNOON AS SFC LOW RACES ACRS SOUTHERN KS. SNOWFALL RATES ARE FORECAST TO INTENSIFY THROUGH THE AFTERNOON WITH MODERATE TO HEAVY SNOW...ESPECIALLY SOUTH OF HIGHWAY 20 WITH GOOD DENDRITIC GROWTH. THE STRONG FORCING AND HEAVIER PCPN WILL CONTINUE INTO TUESDAY EVENING BEFORE THE BULK OF FORCING SHIFTS TO THE EAST BY WEDNESDAY MORNING. THEREFORE...CONDITIONS ARE EXPECTED TO DETERIORATE RAPIDLY BY TUESDAY AFTERNOON AND EVENING DUE TO HEAVY SNOWFALL AND FAST ACCUMULATIONS. TOTAL ACCUMULATIONS BY WEDNESDAY MORNING ARE GENERALLY 9 TO 12 INCHES ACROSS ALMOST THE ENTIRE FORECAST AREA AND THERE WILL LIKELY BE AREAS WHICH RECEIVE MORE THAN A FOOT. HOWEVER...THIS SNOW IS JUST THE FIRST PART OF THE SYSTEM. AS THE STORMS PULLS TO THE EAST THE DEEPENING UPPER SYSTEM BECOMES NEGATIVELY TILTED. SFC LOW PRES OF 980MB IS REACHED BY 12Z ON WEDNESDAY NEAR THE SOUTHERN END OF LAKE MICHIGAN. THE PRESSURE GRADIENT TIGHTENS QUICKLY AFTER 06Z WEDNESDAY WITH EURO STILL INDICATING 50KTS+ AT 925MB WITH NAM/GFS SLIGHTLY WEAKER. MIXED LAYER WINDS ON THE GFS ARE AROUND 40-45KTS BY 12Z WEDNESDAY AND IT APPEARS SFC WIND GUSTS TO 45 MPH WILL BE POSSIBLE. CERTAINLY WITH THE AMOUNT OF SNOW ON THE GROUND AVAILABLE FOR TRANSPORT...BLOWING AND DRIFTING SNOW WILL BECOME PROBLEMATIC. NEAR WHITEOUT CONDITIONS ARE LIKELY BY DAYBREAK WEDNESDAY WITH TRAVEL DIFFICULT IF NOT NEAR IMPOSSIBLE BY THEN. THE WINDS WILL BE STRONGEST THROUGH WEDNESDAY MORNING BUT SHOULD SLOWLY SUBSIDE DURING THE AFTERNOON AS THE SYSTEM PULLS RAPIDLY INTO THE UPPER GREAT LAKES REGION. AS FOR HEADLINES...WL LEAVE THE WINTER STORM WATCH IN PLACE AS IT CURRENTLY STANDS. WL LIKELY SEE A WARNING BY THIS AFTERNOON AND POSSIBLY A BLIZZARD WATCH ISSUED FOR LATE TUESDAY NIGHT INTO WEDNESDAY FOR THE WINDY PORTION OF THE STORM. HAVE DONE LITTLE IF ANY MODIFICATION TO THE FORECAST BEYOND WEDNESDAY NIGHT. && .AVIATION... 07/18Z...MVFR STRATOCU HANGING AROUND AT KDSM...KOTM AND KALO FOR PORTIONS OF THIS AFTN...BUT SHOULD SCATTER OUT. MEANWHILE...HIGH CLOUDS SPREADING NORTHEAST AHEAD OF MAJOR SYSTEM TO AFFECT US TUESDAY WILL GRADUALLY LOWER AFT 00Z. ANTICIPATE LIGHT SNOW BREAKING OUT AS EARLY AS 06Z AT KDSM AND KFOD...AND SPREADING EAST THEREAFTER. SNOW INTENSITY SHOULD REMAIN ON THE LIGHTER SIDE THROUGH 12Z...THEN PICK UP SOME AFT 12Z...ESPECIALLY AT KDSM AND KOTM WHERE LIFR CONDITIONS ARE FORECAST. MAY END UP WITH MORE WIDESPREAD LIFR CONDITIONS...BUT CONFIDENCE NOT HIGH ENOUGH TO REVEAL IN THE TAF AT THIS POINT. && .DMX WATCHES/WARNINGS/ADVISORIES... WINTER STORM WATCH FROM LATE MONDAY NIGHT THROUGH WEDNESDAY AFTERNOON FOR ADAIR-ADAMS-APPANOOSE-AUDUBON-BLACK HAWK-BOONE-BREMER- BUTLER-CALHOUN-CARROLL-CASS-CERRO GORDO-CLARKE-CRAWFORD-DALLAS- DAVIS-DECATUR-EMMET-FRANKLIN-GREENE-GRUNDY-GUTHRIE-HAMILTON- HANCOCK-HARDIN-HUMBOLDT-JASPER-KOSSUTH-LUCAS-MADISON-MAHASKA- MARION-MARSHALL-MONROE-PALO ALTO-POCAHONTAS-POLK-POWESHIEK- RINGGOLD-SAC-STORY-TAMA-TAYLOR-UNION-WAPELLO-WARREN-WAYNE- WEBSTER-WINNEBAGO-WORTH-WRIGHT. && SHORT TERM...ZOGG LONG TERM...COGIL AVIATION...MOYER
Hazardous weather outlook, Dec 7, 10:49 AM CST, 4 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 1049 AM CST MON DEC 7 2009 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-081700- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE- DAVIS- 1049 AM CST MON DEC 7 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TODAY AND TONIGHT SNOW IS EXPECTED TO SPREAD INTO SOUTHERN AND CENTRAL IOWA TONIGHT. A WINTER STORM WATCH IS IN EFFECT FOR THE ENTIRE AREA. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY AN INTENSE SYSTEM WILL AFFECT ALL OF CENTRAL IOWA ON TUESDAY INTO WEDNESDAY. POTENTIALLY DANGEROUS CONDITIONS ARE FORECAST FROM HEAVY SNOW AND VERY STRONG WINDS. A WINTER STORM WATCH IS IN EFFECT FOR THE AREA. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .SPOTTER INFORMATION STATEMENT... A CONFERENCE CALL FOR EMERGENCY MANAGEMENT COORDINATORS WILL BE CONDUCTED AT 2 PM CST TODAY. SPOTTER REPORTS OF SNOWFALL AND OTHER WINTER WEATHER IMPACTS WOULD BE GREATLY APPRECIATED FROM TONIGHT INTO WEDNESDAY. MOYER
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 7, 3:42 PM CST | Blizzard Watch | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 19 hr |
Nearby
Winter Storm Warnings in Iowa, 2009Every winter storm warning in 2009
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.