Alert archive / Iowa / Wind Advisories in 2020
Wind Advisory 7, NWS Des Moines, IA
NWS Des Moines, IA issued this wind advisory at Apr 12, 2020, 4:58 AM CDT for 40 counties in Iowa. It took effect at Apr 12, 2020, 1:00 PM CDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Apr 12, 2020, 4:58 AM CDT (09:58 UTC)
- In effect from
- Apr 12, 2020, 1:00 PM CDT
- Expired
- Apr 13, 2020, 4:00 AM CDT
- In force
- 15 hr
- Issued by
- NWS Des Moines, IA
All 40 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hardin County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Webster County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 14 km from the middle of the area, began a volume at 09:58 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, 10.0 hours before the alert went out and 234 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
- 2081 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
778 WWUS73 KDMX 120958 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 458 AM CDT Sun Apr 12 2020 IAZ025-026-035-036-044>047-057>059-070-121700- /O.NEW.KDMX.WI.Y.0007.200412T1800Z-200413T0900Z/ Wright-Franklin-Webster-Hamilton-Crawford-Carroll-Greene-Boone- Audubon-Guthrie-Dallas-Cass- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Fort Dodge, Webster City, Denison, Carroll, Jefferson, Boone, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, and Atlantic 458 AM CDT Sun Apr 12 2020 ...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 4 AM CDT MONDAY... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph expected. This may also be coincident with minor icing at times. * WHERE...Portions of Northern and Western Iowa * WHEN...From 1 PM this afternoon to 4 AM CDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Amounts are expected to be light, but these strong winds may be coincident with light freezing rain by later this afternoon and early this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IAZ027-028-037>039-048>050-060>062-071>075-081>086-092>097-121700- /O.NEW.KDMX.WI.Y.0007.200412T2100Z-200413T0900Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Story-Marshall-Tama-Polk- Jasper-Poweshiek-Adair-Madison-Warren-Marion-Mahaska-Adams-Union- Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne- Appanoose-Davis- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Des Moines, Newton, Grinnell, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia, Ottumwa, Bedford, Lenox, New Market, Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield 458 AM CDT Sun Apr 12 2020 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM CDT MONDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Southern and Eastern Iowa * WHEN...From 4 PM this afternoon to 4 AM CDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines BSS
5 follow-up statements
757 WWUS73 KDMX 121601 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 1101 AM CDT Sun Apr 12 2020 IAZ025-026-035-036-044>047-057>059-070-130015- /O.CON.KDMX.WI.Y.0007.200412T1800Z-200413T0900Z/ Wright-Franklin-Webster-Hamilton-Crawford-Carroll-Greene-Boone- Audubon-Guthrie-Dallas-Cass- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Fort Dodge, Webster City, Denison, Carroll, Jefferson, Boone, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, and Atlantic 1101 AM CDT Sun Apr 12 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT MONDAY... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph expected. This may also be coincident with minor icing at times. * WHERE...Portions of Northern and Western Iowa. * WHEN...From 1 PM this afternoon to 4 AM CDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Amounts are expected to be light, but these strong winds may be coincident with light freezing rain by later this afternoon and early this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IAZ027-028-037>039-048>050-060>062-071>075-081>086-092>097-130015- /O.CON.KDMX.WI.Y.0007.200412T2100Z-200413T0900Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Story-Marshall-Tama-Polk- Jasper-Poweshiek-Adair-Madison-Warren-Marion-Mahaska-Adams-Union- Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne- Appanoose-Davis- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Des Moines, Newton, Grinnell, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia, Ottumwa, Bedford, Lenox, New Market, Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield 1101 AM CDT Sun Apr 12 2020 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM CDT MONDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Southern and Eastern Iowa. * WHEN...From 4 PM this afternoon to 4 AM CDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines Hagenhoff
371 WWUS73 KDMX 122004 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 304 PM CDT Sun Apr 12 2020 IAZ025-026-035-036-044>047-057>059-070-130415- /O.CON.KDMX.WI.Y.0007.000000T0000Z-200413T0900Z/ Wright-Franklin-Webster-Hamilton-Crawford-Carroll-Greene-Boone- Audubon-Guthrie-Dallas-Cass- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Fort Dodge, Webster City, Denison, Carroll, Jefferson, Boone, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, and Atlantic 304 PM CDT Sun Apr 12 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT MONDAY... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph expected. This may also be coincident with minor icing at times. * WHERE...Portions of Northern and Western Iowa. * WHEN...From 1 PM this afternoon to 4 AM CDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Amounts are expected to be light, but these strong winds may be coincident with light freezing rain by later this afternoon and early this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IAZ027-028-037>039-048>050-060>062-071>075-081>086-092>097-130415- /O.CON.KDMX.WI.Y.0007.200412T2100Z-200413T0900Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Story-Marshall-Tama-Polk- Jasper-Poweshiek-Adair-Madison-Warren-Marion-Mahaska-Adams-Union- Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne- Appanoose-Davis- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Des Moines, Newton, Grinnell, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia, Ottumwa, Bedford, Lenox, New Market, Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield 304 PM CDT Sun Apr 12 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT MONDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Southern and Eastern Iowa. * WHEN...From 4 PM this afternoon to 4 AM CDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines Hagenhoff
822 WWUS73 KDMX 130203 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 903 PM CDT Sun Apr 12 2020 IAZ025>028-035>039-044>050-057>062-070>075-081>086-092>097-130900- /O.CON.KDMX.WI.Y.0007.000000T0000Z-200413T0900Z/ Wright-Franklin-Butler-Bremer-Webster-Hamilton-Hardin-Grundy- Black Hawk-Crawford-Carroll-Greene-Boone-Story-Marshall-Tama- Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison- Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello- Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia, Ottumwa, Bedford, Lenox, New Market, Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield 903 PM CDT Sun Apr 12 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT MONDAY... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Much of Central Iowa. * WHEN...Through 4 AM CDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
371 WWUS73 KDMX 130301 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 1001 PM CDT Sun Apr 12 2020 IAZ035-044>046-057-058-070-130415- /O.CAN.KDMX.WI.Y.0007.000000T0000Z-200413T0900Z/ Webster-Crawford-Carroll-Greene-Audubon-Guthrie-Cass- Including the cities of Fort Dodge, Denison, Carroll, Jefferson, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, and Atlantic 1001 PM CDT Sun Apr 12 2020 ...WIND ADVISORY IS CANCELLED... Wind gusts and sustained winds have decreased to below wind advisory criteria. North winds of 15 to 25 mph are still forecast through Monday. $$ IAZ025>028-036>039-047>050-059>062-071>075-081>086-092>097-130900- /O.CON.KDMX.WI.Y.0007.000000T0000Z-200413T0900Z/ Wright-Franklin-Butler-Bremer-Hamilton-Hardin-Grundy-Black Hawk- Boone-Story-Marshall-Tama-Dallas-Polk-Jasper-Poweshiek-Adair- Madison-Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe- Wapello-Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis- Including the cities of 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, Boone, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia, Ottumwa, Bedford, Lenox, New Market, Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield 1001 PM CDT Sun Apr 12 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT MONDAY... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Much of Central to Southern Iowa. * WHEN...Through 4 AM CDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
864 WWUS73 KDMX 130841 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 341 AM CDT Mon Apr 13 2020 IAZ025>028-036>039-047>050-059>062-071>075-081>086-092>097-130945- /O.EXP.KDMX.WI.Y.0007.000000T0000Z-200413T0900Z/ Wright-Franklin-Butler-Bremer-Hamilton-Hardin-Grundy-Black Hawk- Boone-Story-Marshall-Tama-Dallas-Polk-Jasper-Poweshiek-Adair- Madison-Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe- Wapello-Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Boone, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia, Ottumwa, Bedford, Lenox, New Market, Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield 341 AM CDT Mon Apr 13 2020 ...WIND ADVISORY WILL EXPIRE AT 4 AM CDT EARLY THIS MORNING... Sustained winds and wind gusts have decreased below advisory criteria. Breezy NW/WNW winds will stick around today, but remain below advisory criteria with expected sustained winds 15 to 20 mph and gusts to 30 to 35 mph. $$ For more information from the National Weather Service visit https://weather.gov/desmoines
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 10:05 PM CDT | Special Weather Statement | DMX | Decatur | 25 min |
| Apr 11, 10:08 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Ringgold | 36 min |
| Apr 11, 10:44 PM CDT | Special Weather Statement | DMX | Lucas, Wayne | 61 min |
| Apr 11, 11:25 PM CDT | Special Weather Statement | DMX | Lucas, Monroe | 50 min |
| Apr 11, 11:35 PM CDT | Severe Thunderstorm Warning | DMX | Monroe | 40 min |
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.