Alert archive / Iowa / Wind Advisories in 2007
Wind Advisory 7, NWS Des Moines, IA
NWS Des Moines, IA issued this wind advisory at Apr 21, 2007, 11:18 AM CDT for 17 counties in Iowa. It took effect at Apr 21, 2007, 12:00 PM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Apr 21, 2007, 11:18 AM CDT (16:18 UTC)
- In effect from
- Apr 21, 2007, 12:00 PM CDT
- Expired
- Apr 21, 2007, 8:00 PM CDT
- In force
- 8 hr
- Issued by
- NWS Des Moines, IA
Counties Audubon County, IA, Calhoun County, IA, Carroll County, IA, Cerro Gordo County, IA, Crawford County, IA, Emmet County, IA, Greene County, IA, Hancock County, IA, Humboldt County, IA, Kossuth County, IA, Palo Alto County, IA, Pocahontas County, IA, Sac County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 118 km from the middle of the area, began a volume at 16:22 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 12:00Z, 4.3 hours before the alert went out and 227 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
- 157 J/kg
- Mixed-layer CIN
- -505 J/kg
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 210 m²/s²
- 0-3 km storm-relative helicity
- 240 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS73 KDMX 211618 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1118 AM CDT SAT APR 21 2007 ...GUSTY SOUTHERLY WINDS CAN BE EXPECTED THIS AFTERNOON ACROSS NORTH CENTRAL AND NORTHWEST IOWA... .GUSTY SOUTH WINDS WILL CONTINUE TO INCREASE TODAY AS A RESULT OF HIGH PRESSURE TO THE EAST AND STRENGTHENING LOW PRESSURE TO THE WEST. IAZ004>007-015>017-023>025-033>035-044>046-057-220030- /O.NEW.KDMX.WI.Y.0007.070421T1700Z-070422T0100Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-SAC-CALHOUN-WEBSTER-CRAWFORD-CARROLL- GREENE-AUDUBON- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...SAC CITY...ROCKWELL CITY...FORT DODGE... DENISON...CARROLL...JEFFERSON...AUDUBON 1118 AM CDT SAT APR 21 2007 ...WIND ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM CDT THIS EVENING. SOUTH WINDS WILL INCREASE TO 25 TO 35 MPH THIS AFTERNOON. GUSTS TO 45 MPH ARE POSSIBLE AS WELL. EXPECT THE WINDS TO DIMINISH THIS EVENING TOWARD SUNSET. A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. $$ DONAVON
1 follow-up statement
000 WWUS73 KDMX 212041 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 341 PM CDT SAT APR 21 2007 ...GUSTY SOUTHERLY WINDS CAN BE EXPECTED THIS AFTERNOON AND EARLY EVENING ACROSS NORTH CENTRAL AND NORTHWEST IOWA... .LOW PRESSURE STRENGTHENING OVER EASTERN COLORADO WILL RESULT IN GUSTY SOUTH WINDS. IAZ004>007-015>017-023>025-033>035-044>046-057-220100- /O.CON.KDMX.WI.Y.0007.000000T0000Z-070422T0100Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-SAC-CALHOUN-WEBSTER-CRAWFORD-CARROLL- GREENE-AUDUBON- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...SAC CITY...ROCKWELL CITY...FORT DODGE... DENISON...CARROLL...JEFFERSON...AUDUBON 341 PM CDT SAT APR 21 2007 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... SOUTH WINDS OF TO 25 TO 35 MPH WILL CONTINUE THIS AFTERNOON. A FEW GUSTS TO 45 MPH CAN ALSO BE EXPECTED. THE WINDS WILL DIMINISH THIS EVENING TOWARD SUNSET. A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. $$ DONAVON
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.