Alert archive / Iowa / Wind Advisories in 2012
Wind Advisory 12, NWS Des Moines, IA
NWS Des Moines, IA issued this wind advisory at Oct 18, 2012, 4:10 AM CDT for 20 counties in Iowa. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Oct 18, 2012, 4:10 AM CDT (09:10 UTC)
- Expired
- Oct 18, 2012, 7:00 PM CDT
- In force
- 15 hr
- Issued by
- NWS Des Moines, IA
Counties Adair County, IA, Adams County, IA, Audubon County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Decatur County, IA, Emmet County, IA, Greene County, IA, Guthrie County, IA, Madison County, IA, Palo Alto County, IA, Pocahontas County, IA, Ringgold County, IA, Sac County, IA, Taylor County, IA, Union County, IA
The radar
The Des Moines radar (KDMX), 68 km from the middle of the area, began a volume at 09:11 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
Omaha, NE (KOAX), launched 00:00Z, 9.2 hours before the alert went out and 159 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
- 2762 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -120 m²/s²
- 0-3 km storm-relative helicity
- -91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
705 WWUS73 KDMX 180910 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 410 AM CDT THU OCT 18 2012 ...GUSTY WINDS EXPECTED TODAY... .A STRONG AREA OF LOW PRESSURE WILL SLIDE ACROSS MINNESOTA AND INTO WISCONSIN TODAY. A COMBINATION OF STRONG WINDS MIXING DOWN FROM ALOFT AND A TIGHTENED SURFACE PRESSURE GRADIENT... WILL PRODUCE GUSTY WESTERLY WINDS ACROSS WESTERN PORTIONS OF IOWA TODAY. IAZ004-015-023-033-034-044>046-057>059-070>072-081>083-092>094- 181715- /O.NEW.KDMX.WI.Y.0012.121018T0910Z-121019T0000Z/ EMMET-PALO ALTO-POCAHONTAS-SAC-CALHOUN-CRAWFORD-CARROLL-GREENE- AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-CLARKE- TAYLOR-RINGGOLD-DECATUR- INCLUDING THE CITIES OF...ESTHERVILLE...EMMETSBURG...POCAHONTAS... SAC CITY...ROCKWELL CITY...DENISON...CARROLL...JEFFERSON... AUDUBON...GUTHRIE CENTER...ADEL...ATLANTIC...GREENFIELD... WINTERSET...CORNING...CRESTON...OSCEOLA...BEDFORD...MOUNT AYR... LEON 410 AM CDT THU OCT 18 2012 ...WIND ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING. * TIMING...WINDS WILL INCREASE ACROSS THE AREA AROUND SUNRISE AND REMAIN STRONG AND GUSTY THROUGH THE DAY. THE GUSTY WINDS ARE EXPECTED TO DIMINISH SOME BY SUNSET THIS EVENING. * WINDS...WEST WINDS OF 25 TO 35 MPH WITH GUSTS OF 45 TO 50 MPH ARE EXPECTED. * IMPACTS...THE STRONG WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. IN ADDITION...LOOSE OUTDOOR OBJECTS MAY BE BLOWN AROUND. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ MJB
3 follow-up statements
021 WWUS73 KDMX 181546 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1046 AM CDT THU OCT 18 2012 ...GUSTY WINDS CONTINUE TODAY... .A STRONG AREA OF LOW PRESSURE WILL SLIDE ACROSS MINNESOTA AND INTO WISCONSIN TODAY. A COMBINATION OF STRONG WINDS MIXING DOWN FROM ALOFT AND A TIGHTENED SURFACE PRESSURE GRADIENT... WILL PRODUCE GUSTY WESTERLY WINDS ACROSS WESTERN PORTIONS OF IOWA TODAY. IAZ004-015-023-033-034-044>046-057>059-070>072-081>083-092>094- 182345- /O.CON.KDMX.WI.Y.0012.000000T0000Z-121019T0000Z/ EMMET-PALO ALTO-POCAHONTAS-SAC-CALHOUN-CRAWFORD-CARROLL-GREENE- AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-CLARKE- TAYLOR-RINGGOLD-DECATUR- INCLUDING THE CITIES OF...ESTHERVILLE...EMMETSBURG...POCAHONTAS... SAC CITY...ROCKWELL CITY...DENISON...CARROLL...JEFFERSON... AUDUBON...GUTHRIE CENTER...ADEL...ATLANTIC...GREENFIELD... WINTERSET...CORNING...CRESTON...OSCEOLA...BEDFORD...MOUNT AYR... LEON 1046 AM CDT THU OCT 18 2012 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...WINDS WILL CONTINUE TO INCREASE IN THE WEST AND WILL REMAIN STRONG AND GUSTY THROUGH THE DAY. THE GUSTY WINDS ARE EXPECTED TO DIMINISH SOME BY SUNSET THIS EVENING. * WINDS...WEST WINDS OF 25 TO 35 MPH WITH GUSTS OF 45 TO 50 MPH ARE EXPECTED. * IMPACTS...THE STRONG WINDS WILL MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. IN ADDITION...LOOSE OUTDOOR OBJECTS MAY BE BLOWN AROUND. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ AWB
830 WWUS73 KDMX 182037 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 337 PM CDT THU OCT 18 2012 ...GUSTY WINDS CONTINUE TODAY... .A STRONG AREA OF LOW PRESSURE WILL SLIDE ACROSS MINNESOTA TOWARDS NORTHEAST ILLINOIS TONIGHT. A COMBINATION OF STRONG WINDS MIXING DOWN FROM ALOFT AND A TIGHTENED SURFACE PRESSURE GRADIENT WILL KEEP A STRONG AND GUSTY WEST WIND ACROSS WESTERN PORTIONS OF IOWA THROUGH EARLY EVENING. IAZ004-015-023-033-034-046-059-072-083-182145- /O.CAN.KDMX.WI.Y.0012.000000T0000Z-121019T0000Z/ EMMET-PALO ALTO-POCAHONTAS-SAC-CALHOUN-GREENE-DALLAS-MADISON- CLARKE- INCLUDING THE CITIES OF...ESTHERVILLE...EMMETSBURG...POCAHONTAS... SAC CITY...ROCKWELL CITY...JEFFERSON...ADEL...WINTERSET...OSCEOLA 337 PM CDT THU OCT 18 2012 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE WIND ADVISORY. ALTHOUGH IT WILL REMAIN WINDY THROUGH EARLY EVENING...THE WIND SPEEDS WILL BE BELOW ADVISORY CRITERIA. THEREFORE THE WIND ADVISORY WAS CANCELED. EXPECT A WEST WIND AT 20 TO 30 MPH THROUGH 7PM. $$ IAZ044-045-057-058-070-071-081-082-092>094-190000- /O.CON.KDMX.WI.Y.0012.000000T0000Z-121019T0000Z/ CRAWFORD-CARROLL-AUDUBON-GUTHRIE-CASS-ADAIR-ADAMS-UNION-TAYLOR- RINGGOLD-DECATUR- INCLUDING THE CITIES OF...DENISON...CARROLL...AUDUBON... GUTHRIE CENTER...ATLANTIC...GREENFIELD...CORNING...CRESTON... BEDFORD...MOUNT AYR...LEON 337 PM CDT THU OCT 18 2012 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...WINDS WILL REMAIN STRONG AND GUSTY THROUGH 7 PM BEFORE DIMINISHING SOME AND BECOMING LESS GUSTY THIS EVENING. * WINDS...A WEST WIND AT 25 TO 35 MPH WITH GUSTS OF 45 MPH ARE EXPECTED. * IMPACTS...THE STRONG WINDS WILL MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. IN ADDITION...LOOSE OUTDOOR OBJECTS MAY BE BLOWN AROUND. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ FAB
000 WWUS73 KDMX 190006 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 706 PM CDT THU OCT 18 2012 ...WIND ADVISORY HAS BEEN ALLOWED TO EXPIRE... .WINDS HAVE BEGUN TO SLOWLY DIMINISH ACROSS THE AREA...THUS THE WIND ADVISORY WAS ALLOWED TO EXPIRE AT 7 PM. IAZ044-045-057-058-070-071-081-082-092>094-190115- /O.EXP.KDMX.WI.Y.0012.000000T0000Z-121019T0000Z/ CRAWFORD-CARROLL-AUDUBON-GUTHRIE-CASS-ADAIR-ADAMS-UNION-TAYLOR- RINGGOLD-DECATUR- INCLUDING THE CITIES OF...DENISON...CARROLL...AUDUBON... GUTHRIE CENTER...ATLANTIC...GREENFIELD...CORNING...CRESTON... BEDFORD...MOUNT AYR...LEON 706 PM CDT THU OCT 18 2012 ...WIND ADVISORY HAS EXPIRED... WINDS HAVE BEGUN TO SLOWLY DIMINISH WITH SUNSET...AND ARE BELOW ADVISORY CRITERIA ACROSS THE AREA. HOWEVER...WINDS OF 20 TO 25 MPH WITH GUSTS UP TO 35 MPH AT TIMES WILL PERSIST THIS EVENING AND EARLY TONIGHT. $$ LEE
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.