Alert archive / Iowa / Wind Advisories in 2018
Wind Advisory 2, NWS Des Moines, IA
NWS Des Moines, IA issued this wind advisory at Feb 18, 2018, 3:27 AM CST for 41 counties in Iowa. It took effect at Feb 18, 2018, 9:00 AM CST. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Feb 18, 2018, 3:27 AM CST (09:27 UTC)
- In effect from
- Feb 18, 2018, 9:00 AM CST
- Expired
- Feb 18, 2018, 2:00 PM CST
- In force
- 5 hr
- Issued by
- NWS Des Moines, IA
All 41 counties
Adair County, IA, Adams 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, 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, Madison County, IA, Marshall County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Taylor County, IA, Union County, IA, Warren County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 48 km from the middle of the area, began a volume at 09:29 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, 9.5 hours before the alert went out and 220 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
- 1321 m above ground
- 0-6 km bulk shear
- 81 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
555 WWUS73 KDMX 180927 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 327 AM CST Sun Feb 18 2018 ...Strong Winds Developing Today... .Winds will turn to south and strengthen significantly later this morning into the afternoon. This will result in strong crosswinds on east west roads, and loose objects will be blown around. IAZ004>007-015>017-023>028-033>039-044>049-057>061-070>073- 081>083-092>094-181730- /O.NEW.KDMX.WI.Y.0002.180218T1500Z-180218T2000Z/ 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-Audubon-Guthrie-Dallas-Polk-Jasper-Cass- Adair-Madison-Warren-Adams-Union-Clarke-Taylor-Ringgold-Decatur- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Des Moines, Newton, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Corning, Creston, Osceola, Bedford, Lenox, New Market, Mount Ayr, Lamoni, and Leon 327 AM CST Sun Feb 18 2018 ...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 2 PM CST THIS AFTERNOON... The National Weather Service in Des Moines has issued a Wind Advisory, which is in effect from 9 AM this morning to 2 PM CST this afternoon. * TIMING...Winds will quickly strengthen after sunrise, with the strongest winds expected in the late morning and early afternoon, then diminish by mid-afternoon. * WINDS...Sustained winds will reach speeds of 30 mph with wind gusts to 45 mph at times. * IMPACTS...Strong wind gusts will make driving difficult, especially on east west roads and for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 30 mph or wind gusts of 45 mph or greater are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Lee
2 follow-up statements
453 WWUS73 KDMX 181547 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 947 AM CST Sun Feb 18 2018 ...Strong Winds Into the Afternoon Today... .South winds continue to strengthen and will continue into the afternoon. This will result in strong crosswinds making for difficult driving on east west roads. Loose objects will also be blown around. IAZ004>007-015>017-023>028-033>039-044>049-057>061-070>073- 081>083-092>094-182000- /O.CON.KDMX.WI.Y.0002.000000T0000Z-180218T2000Z/ 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-Audubon-Guthrie-Dallas-Polk-Jasper-Cass- Adair-Madison-Warren-Adams-Union-Clarke-Taylor-Ringgold-Decatur- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Des Moines, Newton, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Corning, Creston, Osceola, Bedford, Lenox, New Market, Mount Ayr, Lamoni, and Leon 947 AM CST Sun Feb 18 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... * TIMING...The strongest winds are expected through early afternoon and will then diminish by mid-afternoon. * WINDS...Sustained winds will reach speeds of 30 mph with wind gusts to 45 mph or higher at times. * IMPACTS...Strong wind gusts will make driving difficult, especially on east west roads and for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 30 mph or wind gusts of 45 mph or greater are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ REV
776 WWUS73 KDMX 182000 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 200 PM CST Sun Feb 18 2018 ...Gusty Winds Will Slowly Diminish by Mid Afternoon... .Winds will be lessening over the next hour across the area. Expect some strong wind gusts to persist over the next hour. IAZ004>007-015>017-023>028-033>039-044>049-057>061-070>073- 081>083-092>094-182100- /O.EXP.KDMX.WI.Y.0002.000000T0000Z-180218T2000Z/ 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-Audubon-Guthrie-Dallas-Polk-Jasper-Cass- Adair-Madison-Warren-Adams-Union-Clarke-Taylor-Ringgold-Decatur- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Des Moines, Newton, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Corning, Creston, Osceola, Bedford, Lenox, New Market, Mount Ayr, Lamoni, and Leon 200 PM CST Sun Feb 18 2018 ...WIND ADVISORY WILL EXPIRE AT 2 PM CST THIS AFTERNOON... Winds will continue strongest over western Iowa through about 3 pm this afternoon but should diminish between 2 and 3 pm today. Expect the winds gusts to gradually lower to under 45 mph over the next hour. If traveling...remain cautious with crosswinds... especially if driving in a high profile vehicle. $$ REV
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 3:45 AM CST | Winter Storm Watch | DMX | Adair, Adams, Black Hawk, Bremer, Butler, Clarke and 17 more | 24 hr |
| Feb 18, 3:45 AM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 42 more | 56 hr |
| Feb 18, 4:02 PM CST | Winter Weather Advisory | DMX | Cass | 44 hr |
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.