Alert archive / Iowa / Wind Advisories in 2011
Wind Advisory 10, NWS Des Moines, IA
NWS Des Moines, IA issued this wind advisory at Sep 28, 2011, 3:50 PM CDT for 28 counties in Iowa. It took effect at Sep 29, 2011, 10:00 AM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Sep 28, 2011, 3:50 PM CDT (20:50 UTC)
- In effect from
- Sep 29, 2011, 10:00 AM CDT
- Expired
- Sep 29, 2011, 7:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Des Moines, IA
All 28 counties
Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Cerro Gordo County, IA, Emmet County, IA, Franklin County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Jasper County, IA, Kossuth County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Poweshiek County, IA, Story County, IA, Tama County, IA, Wapello County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 82 km from the middle of the area, began a volume at 20:49 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.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 8.8 hours before the alert went out and 255 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
- 792 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
736 WWUS73 KDMX 282050 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 350 PM CDT WED SEP 28 2011 ...STRONG NORTHWEST WINDS EXPECTED ON THURSDAY... .A COLD FRONT WILL MOVE THROUGH THE AREA LATE TONIGHT AND INTO THURSDAY. STRONG NORTHWEST WINDS WILL DEVELOP IN ITS WAKE BY MID MORNING AND CONTINUE THROUGH THE AFTERNOON. IAZ004>007-015>017-023>028-035>039-047>050-060>062-074-075-086- 290500- /O.NEW.KDMX.WI.Y.0010.110929T1500Z-110930T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-POLK- JASPER-POWESHIEK-MARION-MAHASKA-WAPELLO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES... MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...GRINNELL... KNOXVILLE...OSKALOOSA...OTTUMWA 350 PM CDT WED SEP 28 2011 ...WIND ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT THURSDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 10 AM TO 7 PM CDT THURSDAY. * TIMING...PEAK WINDS ARE EXPECTED BETWEEN 11 AM AND 4 PM. * WINDS...NORTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS OVER 45 MPH ARE FORECAST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH OR HIGHER... OR GUSTS OVER 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. IN ADDITION...TAKE ACTION TO SECURE LIGHTWEIGHT OUTDOOR OBJECTS. && $$
6 follow-up statements
330 WWUS73 KDMX 290158 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 858 PM CDT WED SEP 28 2011 ...STRONG NORTHWEST WINDS EXPECTED ON THURSDAY... .A COLD FRONT WILL MOVE THROUGH THE AREA LATE TONIGHT AND INTO THURSDAY. STRONG NORTHWEST WINDS WILL DEVELOP IN ITS WAKE BY MID MORNING AND CONTINUE THROUGH THE AFTERNOON. IAZ004>007-015>017-023>028-035>039-047>050-060>062-074-075-086- 291000- /O.CON.KDMX.WI.Y.0010.110929T1500Z-110930T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-POLK- JASPER-POWESHIEK-MARION-MAHASKA-WAPELLO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES... MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...GRINNELL... KNOXVILLE...OSKALOOSA...OTTUMWA 858 PM CDT WED SEP 28 2011 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT THURSDAY... * TIMING...PEAK WINDS ARE EXPECTED BETWEEN 11 AM AND 4 PM. * WINDS...NORTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS AT OR ABOVE 45 MPH ARE FORECAST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH OR HIGHER... OR GUSTS OVER 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. IN ADDITION...TAKE ACTION TO SECURE LIGHTWEIGHT OUTDOOR OBJECTS. && $$ SMALL
129 WWUS73 KDMX 290838 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 338 AM CDT THU SEP 29 2011 ...STRONG NORTHWEST WINDS EXPECTED LATER THIS MORNING AND AFTERNOON... .A COLD FRONT WILL THROUGH IOWA TODAY. STRONG NORTHWEST WINDS WILL DEVELOP IN ITS WAKE BY MID MORNING AND CONTINUE THROUGH THE AFTERNOON. THE PERIOD OF PEAK WIND WILL OCCUR BETWEEN 11 AM AND 4 PM THIS AFTERNOON WHEN WINDS MAY EXCEED 50 MPH OVER THE NORTHEAST. IAZ004>007-015>017-023>028-035>039-047>050-060>062-074-075-086- 291645- /O.CON.KDMX.WI.Y.0010.110929T1500Z-110930T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-POLK- JASPER-POWESHIEK-MARION-MAHASKA-WAPELLO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES... MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...GRINNELL... KNOXVILLE...OSKALOOSA...OTTUMWA 338 AM CDT THU SEP 29 2011 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING... * TIMING...PEAK WINDS ARE EXPECTED BETWEEN 11 AM AND 4 PM. * WINDS...NORTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS AT OR ABOVE 50 MPH ARE FORECAST. AREAS FROM NEAR MASON CITY TO WATERLOO SHOULD EXPERIENCE THE STRONGEST WINDS WHERE CUMULUS CLOUDS MAY ENHANCE THE WIND GUSTS TO OVER 50 MPH. ELSEWHERE GUSTS WILL REACH 45 MPH OR HIGHER THIS MORNING AND AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH OR HIGHER... OR GUSTS OVER 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. IN ADDITION...TAKE ACTION TO SECURE LIGHTWEIGHT OUTDOOR OBJECTS. && $$ REV
537 WWUS73 KDMX 291504 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1004 AM CDT THU SEP 29 2011 ...STRONG NORTHWEST WINDS EXPECTED THROUGH THIS AFTERNOON... .A COLD FRONT WILL MOVE THROUGH IOWA TODAY. STRONG NORTHWEST WINDS ARE DEVELOPING IN ITS WAKE AND CONTINUE THROUGH THE AFTERNOON. THE STRONGEST WINDS WILL OCCUR BETWEEN 11 AM AND 5 PM THIS AFTERNOON WHEN WINDS MAY EXCEED 50 MPH OVER THE NORTHEAST. IAZ004>007-015>017-023>028-035>039-047>050-060>062-074-075-086- 292315- /O.CON.KDMX.WI.Y.0010.000000T0000Z-110930T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-POLK- JASPER-POWESHIEK-MARION-MAHASKA-WAPELLO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES... MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...GRINNELL... KNOXVILLE...OSKALOOSA...OTTUMWA 1004 AM CDT THU SEP 29 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...PEAK WINDS ARE EXPECTED BETWEEN 11 AM AND 5 PM. * WINDS...NORTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS AT OR ABOVE 50 MPH ARE FORECAST FOR NORTHEASTERN AREAS FROM AROUND MASON CITY TO WATERLOO SHOULD. ELSEWHERE WIND GUSTS WILL REACH AROUND 45 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH OR HIGHER... OR GUSTS OVER 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. IN ADDITION...TAKE ACTION TO SECURE LIGHTWEIGHT OUTDOOR OBJECTS. && $$ LEE
128 WWUS73 KDMX 291859 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 159 PM CDT THU SEP 29 2011 ...STRONG NORTHWEST WINDS WILL PERSIST THROUGH THIS AFTERNOON... .A COLD FRONT IS MOVING THROUGH IOWA TODAY. STRONG NORTHWEST WINDS HAVE DEVELOPED IN ITS WAKE AND WILL CONTINUE THROUGH THE AFTERNOON HOURS. THE STRONGEST WINDS WILL OCCUR OVER THE NORTHEAST WHERE WIND GUSTS WILL REACH 55 MPH AT TIMES. IAZ004>007-015>017-023>028-035>039-047>050-060>062-074-075-086- 300000- /O.CON.KDMX.WI.Y.0010.000000T0000Z-110930T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-POLK- JASPER-POWESHIEK-MARION-MAHASKA-WAPELLO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES... MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...GRINNELL... KNOXVILLE...OSKALOOSA...OTTUMWA 159 PM CDT THU SEP 29 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...PEAK WINDS ARE EXPECTED TO PERSIST THROUGH AROUND 5 PM. * WINDS...NORTHWEST WINDS OF 25 TO 35 MPH ARE OCCURRING AND FORECAST TO PERSIST. WIND GUSTS WILL REACH 55 MPH AT TIMES ACROSS THE NORTHEAST...AND AROUND 45 MPH ELSEWHERE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH OR HIGHER... OR GUSTS OVER 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. IN ADDITION...TAKE ACTION TO SECURE LIGHTWEIGHT OUTDOOR OBJECTS. && $$ LEE
979 WWUS73 KDMX 292031 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 331 PM CDT THU SEP 29 2011 ...STRONG NORTHWEST WINDS WILL PERSIST THROUGH THE AFTERNOON... .IN WAKE OF A COLD FRONT THAT MOVED ACROSS IOWA TODAY...STRONG NORTHWEST WINDS HAVE DEVELOPED AND WILL CONTINUE THROUGH THE AFTERNOON HOURS. THE STRONGEST WINDS ARE OCCURRING OVER THE NORTHEAST WHERE WIND GUSTS ARE REACHING 55 MPH AT TIMES. IAZ004>007-015>017-023>028-035>039-047>050-060>062-074-075-086- 300000- /O.CON.KDMX.WI.Y.0010.000000T0000Z-110930T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-POLK- JASPER-POWESHIEK-MARION-MAHASKA-WAPELLO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES... MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...GRINNELL... KNOXVILLE...OSKALOOSA...OTTUMWA 331 PM CDT THU SEP 29 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...PEAK WINDS ARE EXPECTED TO PERSIST THROUGH AROUND 5 PM. * WINDS...NORTHWEST WINDS OF 25 TO 35 MPH ARE OCCURRING. WIND GUSTS WILL REACH 55 MPH AT TIMES ACROSS THE NORTHEAST...AND AROUND 45 MPH ELSEWHERE. * IMPACTS...STRONG CROSSWINDS WILL AFFECT VEHICLES ON THE ROADS...ESPECIALLY HIGH PROFILE VEHICLES. THE STRONG WINDS WILL ALSO COMBINE WITH DRY AIR TO CREATE HAZARDOUS FIRE CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH OR HIGHER... OR GUSTS OVER 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. IN ADDITION...TAKE ACTION TO SECURE LIGHTWEIGHT OUTDOOR OBJECTS. && $$ LEE
219 WWUS73 KDMX 292347 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 647 PM CDT THU SEP 29 2011 .WINDS WILL DIMINISH FAIRLY QUICKLY EARLY THIS EVENING AS GREAT LAKES LOW PRESSURE MOVES AWAY AND DAKOTA HIGH PRESSURE APPROACHES THE MISSOURI RIVER. THIS WILL ALLOW THE WIND ADVISORY TO EXPIRE AS SCHEDULED. IAZ004>007-015>017-023>028-035>039-047>050-060>062-074-075-086- 300100- /O.EXP.KDMX.WI.Y.0010.000000T0000Z-110930T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-POLK- JASPER-POWESHIEK-MARION-MAHASKA-WAPELLO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES... MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...GRINNELL... KNOXVILLE...OSKALOOSA...OTTUMWA 647 PM CDT THU SEP 29 2011 ...WIND ADVISORY WILL EXPIRE AT 7 PM CDT THIS EVENING... A FEW GUSTS MAY STILL REACH ADVISORY CRITERIA OVER EASTERN IOWA THROUGH 800 PM...SUSTAINED SPEEDS AT OR ABOVE 30 MPH...BUT THE OVERALL TREND WILL BE FOR THE WINDS TO CONTINUE DIMINISHING EARLY THIS EVENING. MOST GUSTS SHOULD BE NO MORE THAN 15 TO 30 MPH BY 700 PM OR 800 PM WITH A FURTHER DECREASE AFTER THAT TIME. $$ SMALL
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.