Alert archive / Iowa / Wind Advisories in 2018
Wind Advisory 8, NWS Des Moines, IA
NWS Des Moines, IA issued this wind advisory at Oct 19, 2018, 7:30 PM CDT for 20 counties in Iowa. It took effect at Oct 20, 2018, 8:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Oct 19, 2018, 7:30 PM CDT (00:30 UTC)
- In effect from
- Oct 20, 2018, 8:00 AM CDT
- Expired
- Oct 20, 2018, 3:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Des Moines, IA
Counties Black Hawk County, IA, Bremer County, IA, Butler County, IA, Cerro Gordo County, IA, Davis County, IA, Franklin County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Jasper County, IA, Mahaska County, IA, Marshall County, IA, Poweshiek County, IA, Story County, IA, Tama County, IA, Wapello County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 87 km from the middle of the area, began a volume at 00:32 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 00:00Z, 0.5 hours before the alert went out and 221 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
- 739 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 228 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
415 WWUS73 KDMX 200030 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 730 PM CDT Fri Oct 19 2018 ...Expect Gusty Winds Saturday... .Wind gusts are expected to increase sharply across northeast Iowa in just a few hours shortly after sunrise. This will occur as a weak frontal system moves through the state allowing strong winds aloft to reach the surface. IAZ006-007-016-017-025>028-037>039-049-050-062-201000- /O.NEW.KDMX.WI.Y.0008.181020T1300Z-181020T1900Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Butler-Bremer- Hardin-Grundy-Black Hawk-Marshall-Tama-Poweshiek- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, and Grinnell 730 PM CDT Fri Oct 19 2018 ...WIND ADVISORY IN EFFECT FROM 8 AM TO 2 PM CDT SATURDAY... The National Weather Service in Des Moines has issued a Wind Advisory, which is in effect from 8 AM to 2 PM CDT Saturday. * TIMING...Winds will increase abruptly between 8am and 11am Saturday morning and continue into midday before gradually diminishing by afternoon. * WINDS...Northwest winds may reach sustained speeds of 25 to 35 mph with gusts of 40 to 45 mph possible. * IMPACTS...Lightweight and unsecured outdoor objects will be effected with minor property damage possible. Travel may be difficult 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. && $$ Small
4 follow-up statements
599 WWUS73 KDMX 200822 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 322 AM CDT Sat Oct 20 2018 ...Expect Gusty Winds This Morning into Early Afternoon... .Wind gusts are expected to increase sharply across portions of eastern and northern Iowa beginning shortly after sunrise north and mid to late morning central and southeast. The strong wind gusts will last for about 3 to 4 hours following the passage of a strong cold front moving through Iowa today IAZ036-048-061-075-086-201630- /O.EXA.KDMX.WI.Y.0008.181020T1300Z-181020T1900Z/ Hamilton-Story-Jasper-Mahaska-Wapello- Including the cities of Webster City, Ames, Newton, Oskaloosa, and Ottumwa 322 AM CDT Sat Oct 20 2018 ...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 2 PM CDT THIS AFTERNOON... The National Weather Service in Des Moines has issued a Wind Advisory, which is in effect from 8 AM this morning to 2 PM CDT this afternoon. * TIMING...Winds will increase abruptly between 8am and 11am this morning and continue into early afternoon before gradually diminishing by mid-afternoon. * WINDS...Northwest winds may reach sustained speeds of 25 to 35 mph with gusts of 40 to 45 mph possible. * IMPACTS...Lightweight and unsecured outdoor objects will be affected with minor property damage possible. Travel may be difficult for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 30 mph or wind gusts of 45 mph or greater are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IAZ006-007-016-017-025>028-037>039-049-050-062-201630- /O.CON.KDMX.WI.Y.0008.181020T1300Z-181020T1900Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Butler-Bremer- Hardin-Grundy-Black Hawk-Marshall-Tama-Poweshiek- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, and Grinnell 322 AM CDT Sat Oct 20 2018 ...WIND ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 2 PM CDT THIS AFTERNOON... * TIMING...Winds will increase abruptly between 8am and 11am this morning and continue into early afternoon before gradually diminishing by mid-afternoon. * WINDS...Northwest winds may reach sustained speeds of 25 to 35 mph with gusts of 40 to 45 mph possible. * IMPACTS...Lightweight and unsecured outdoor objects will be affected with minor property damage possible. Travel may be difficult 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. && $$ REV
441 WWUS73 KDMX 201350 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 850 AM CDT Sat Oct 20 2018 ...Gusty Winds Will Continue into the Early Afternoon... .Wind gusts are expected to continue to increase sharply across portions of eastern and northern Iowa. The strong wind gusts will last for about 3 to 4 hours following the passage of a strong cold front moving through Iowa today IAZ097-201900- /O.EXA.KDMX.WI.Y.0008.000000T0000Z-181020T1900Z/ Davis- Including the city of Bloomfield 850 AM CDT Sat Oct 20 2018 ...WIND ADVISORY IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON... The National Weather Service in Des Moines has issued a Wind Advisory, which is in effect until 2 PM CDT this afternoon. * TIMING...Winds will increase abruptly between 8am and 11am this morning and continue into early afternoon before gradually diminishing by mid-afternoon. * WINDS...Northwest winds may reach sustained speeds of 25 to 35 mph with gusts of 40 to 45 mph possible. * IMPACTS...Lightweight and unsecured outdoor objects will be affected with minor property damage possible. Travel may be difficult for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 30 mph or wind gusts of 45 mph or greater are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IAZ006-007-016-017-025>028-036>039-048>050-061-062-075-086-201900- /O.CON.KDMX.WI.Y.0008.000000T0000Z-181020T1900Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Butler-Bremer- Hamilton-Hardin-Grundy-Black Hawk-Story-Marshall-Tama-Jasper- Poweshiek-Mahaska-Wapello- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Newton, Grinnell, Oskaloosa, and Ottumwa 850 AM CDT Sat Oct 20 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON... * TIMING...Winds will increase abruptly between 8am and 11am this morning and continue into early afternoon before gradually diminishing by mid-afternoon. * WINDS...Northwest winds may reach sustained speeds of 25 to 35 mph with gusts of 40 to 45 mph possible. * IMPACTS...Lightweight and unsecured outdoor objects will be affected with minor property damage possible. Travel may be difficult 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. && $$
367 WWUS73 KDMX 201758 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 1258 PM CDT Sat Oct 20 2018 ...Gusty Winds Will Continue into the Afternoon... .Wind gusts are expected to continue across portions of eastern and northern Iowa. The strong wind gusts will last for about 2 more hours following the passage of a strong cold front moving through Iowa today IAZ006-007-016-017-025>028-036>039-048>050-061-062-075-086-097- 202000- /O.EXT.KDMX.WI.Y.0008.000000T0000Z-181020T2000Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Butler-Bremer- Hamilton-Hardin-Grundy-Black Hawk-Story-Marshall-Tama-Jasper- Poweshiek-Mahaska-Wapello-Davis- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Newton, Grinnell, Oskaloosa, Ottumwa, and Bloomfield 1258 PM CDT Sat Oct 20 2018 ...WIND ADVISORY NOW IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON... * TIMING...Winds will increase abruptly between 8am and 11am this morning and continue into early afternoon before gradually diminishing by mid-afternoon. * WINDS...Northwest winds may reach sustained speeds of 25 to 35 mph with gusts of 40 to 45 mph possible. * IMPACTS...Lightweight and unsecured outdoor objects will be affected with minor property damage possible. Travel may be difficult for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 30 mph or wind gusts of 45 mph or greater are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$
665 WWUS73 KDMX 202026 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 326 PM CDT Sat Oct 20 2018 ...Strongest Wind Gusts Have Exited the Area... .Winds have fallen below Wind Advisory criteria and will continue to diminish. IAZ006-007-016-017-025>028-036>039-048>050-061-062-075-086-097- 202130- /O.EXP.KDMX.WI.Y.0008.000000T0000Z-181020T2000Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Butler-Bremer- Hamilton-Hardin-Grundy-Black Hawk-Story-Marshall-Tama-Jasper- Poweshiek-Mahaska-Wapello-Davis- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Newton, Grinnell, Oskaloosa, Ottumwa, and Bloomfield 326 PM CDT Sat Oct 20 2018 ...WIND ADVISORY HAS EXPIRED... Winds have fallen below Wind Advisory criteria and will continue to do so through sunset. Through 6 pm, expect winds to remain in the 15 to 25 mph range, with gusts of 30 to 40 mph. Overnight, winds will fall to the 5 to 10 mph range, or less. $$ Kotenberg
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.