Alert archive / Iowa / Wind Advisories in 2020
Wind Advisory 2, NWS Des Moines, IA
NWS Des Moines, IA issued this wind advisory at Jan 9, 2020, 3:54 AM CST for 17 counties in Iowa. It took effect at Jan 9, 2020, 9:00 AM CST. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Jan 9, 2020, 3:54 AM CST (09:54 UTC)
- In effect from
- Jan 9, 2020, 9:00 AM CST
- Expired
- Jan 9, 2020, 2:57 PM CST
- In force
- 6 hr
- Issued by
- NWS Des Moines, IA
Counties Appanoose County, IA, Clarke County, IA, Davis County, IA, Decatur County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Monroe County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA
The radar
The Des Moines radar (KDMX), 76 km from the middle of the area, began a volume at 10:00 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, 9.9 hours before the alert went out and 238 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
- 2073 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 256 m²/s²
- 0-3 km storm-relative helicity
- 460 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
981 WWUS73 KDMX 090954 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 354 AM CST Thu Jan 9 2020 IAZ060>062-072>075-082>086-093>097-091800- /O.NEW.KDMX.WI.Y.0002.200109T1500Z-200109T2300Z/ Polk-Jasper-Poweshiek-Madison-Warren-Marion-Mahaska-Union-Clarke- Lucas-Monroe-Wapello-Ringgold-Decatur-Wayne-Appanoose-Davis- Including the cities of Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Creston, Osceola, Chariton, Albia, Ottumwa, Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield 354 AM CST Thu Jan 9 2020 ...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 5 PM CST THIS AFTERNOON... * WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of central and southeast Iowa * WHEN...From 9 AM this morning to 5 PM CST this afternoon, with peak winds late morning through mid afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. High profile vehicles may encounter strong crosswinds, especially on west to east roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines Small
2 follow-up statements
333 WWUS73 KDMX 091746 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 1146 AM CST Thu Jan 9 2020 IAZ060>062-072>075-082>086-093>097-092300- /O.CON.KDMX.WI.Y.0002.000000T0000Z-200109T2300Z/ Polk-Jasper-Poweshiek-Madison-Warren-Marion-Mahaska-Union-Clarke- Lucas-Monroe-Wapello-Ringgold-Decatur-Wayne-Appanoose-Davis- Including the cities of Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Creston, Osceola, Chariton, Albia, Ottumwa, Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield 1146 AM CST Thu Jan 9 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM CST THIS AFTERNOON... * WHAT...Southwest winds 20 to 30 mph with gusts up to around 45 mph. * WHERE...Portions of central and southeast Iowa. * WHEN...Until 5 PM CST this afternoon, with peak winds through mid afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. High profile vehicles may encounter strong crosswinds, especially on west to east roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines Ansorge
537 WWUS73 KDMX 092057 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 257 PM CST Thu Jan 9 2020 IAZ060>062-072>075-082>086-093>097-092200- /O.CAN.KDMX.WI.Y.0002.000000T0000Z-200109T2300Z/ Polk-Jasper-Poweshiek-Madison-Warren-Marion-Mahaska-Union-Clarke- Lucas-Monroe-Wapello-Ringgold-Decatur-Wayne-Appanoose-Davis- Including the cities of Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Creston, Osceola, Chariton, Albia, Ottumwa, Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield 257 PM CST Thu Jan 9 2020 ...WIND ADVISORY IS CANCELLED... Winds speeds of 15 to 25 mph with gusts to 40 mph will persist through sunset, but wind gusts in excess of 45 mph are not expected at this time. Therefore, the wind advisory is cancelled. $$ 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 |
|---|---|---|---|---|
| Jan 9, 2:15 PM CST | Winter Storm Watch | DMX | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 17 more | 14 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.