Alert archive / Iowa / Areal Flood Warnings in 2018
Areal Flood Warning 4, NWS Des Moines, IA
NWS Des Moines, IA issued this areal flood warning at Jun 10, 2018, 5:40 AM CDT for Butler County, Iowa. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 10, 2018, 5:40 AM CDT (10:40 UTC)
- Expired
- Jun 11, 2018, 5:45 AM CDT
- In force
- 24 hr
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Flood severity
- None
County Butler County, IA
The radar
The Des Moines radar (KDMX), 135 km from the middle of the area, began a volume at 10:41 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, 10.7 hours before the alert went out and 226 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
- 1247 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1107 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.7
What forecasters said that day
The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Des Moines, IA wrote its last area forecast discussion before this areal flood warning went out at Jun 10, 4:17 AM CDT, 1 hour 23 minutes earlier.
Area forecast discussion, Jun 10, 4:17 AM CDT, 1 hour 23 minutes before
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</html>Hazardous weather outlook, Jun 10, 4:48 AM CDT, 52 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 448 AM CDT Sun Jun 10 2018 IAZ004>006-015-016-023>025-033>038-044>050-057>062-070>075- 081>086-092>097-111000- Emmet-Kossuth-Winnebago-Palo Alto-Hancock-Pocahontas-Humboldt- Wright-Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-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- 448 AM CDT Sun Jun 10 2018 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight Scattered thunderstorms are possible today and into tonight. Isolated severe storms are possible with large hail and damaging winds. Locally heavy rainfall could occur with any storms. .DAYS TWO THROUGH SEVEN...Monday through Saturday Additional storms are possible Monday afternoon and night. A few severe storms will be possible with large hail and damaging winds. Isolated tornadoes may also occur. In addition, locally heavy rainfall may occur. Scattered storms are possible at times from Wednesday night through Saturday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed at times through Monday night. IAZ007-017-026>028-039-111000- Worth-Cerro Gordo-Franklin-Butler-Bremer-Black Hawk- 448 AM CDT Sun Jun 10 2018 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight Scattered thunderstorms are possible today and into tonight. Isolated severe storms are possible with large hail and damaging winds. Locally heavy rainfall could occur with any storms. River Flood Warnings are in effect along the Winnebago, Shell Rock and Cedar River basins. .DAYS TWO THROUGH SEVEN...Monday through Saturday Additional storms are possible Monday afternoon and night. A few severe storms will be possible with large hail and damaging winds. Isolated tornadoes may also occur. In addition, locally heavy rainfall may occur. Scattered storms are possible at times from Wednesday night through Saturday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed at times through Monday night.
In the hours before
Special weather statement, Jun 10, 5:23 AM CDT, 17 minutes before
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</html>The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 7:21 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 54 min |
| Jun 9, 7:30 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 45 min |
| Jun 9, 7:46 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 29 min |
| Jun 9, 8:51 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Tama | 54 min |
| Jun 9, 9:13 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 32 min |
| Jun 9, 9:17 PM CDT | River Flood Warning | DMX | Cerro Gordo, Floyd, Worth | 12 hr |
| Jun 9, 9:23 PM CDT | River Flood Warning | DMX | Black Hawk | 6 days |
| Jun 9, 9:29 PM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 58 hr |
| Jun 9, 9:31 PM CDT | River Flood Watch | DMX | Black Hawk, Bremer, Butler | 13 hr |
| Jun 9, 9:32 PM CDT | River Flood Watch | DMX | Black Hawk | 13 hr |
| Jun 9, 9:48 PM CDT | Areal Flood Warning | DMX | Cerro Gordo | 12 hr |
| Jun 10, 5:23 AM CDT | Special Weather Statement | DMX | Crawford, Sac | 37 min |
| Jun 10, 5:58 AM CDT | Special Weather Statement | DMX | Audubon, Carroll, Crawford, Sac | 47 min |
| Jun 10, 6:35 AM CDT | Special Weather Statement | DMX | Audubon, Calhoun, Carroll, Cass, Greene, Guthrie | 40 min |
| Jun 10, 7:47 AM CDT | Special Weather Statement | DMX | Cass | 43 min |
| Jun 10, 7:52 AM CDT | Special Weather Statement | DMX | Story | 38 min |
| Jun 10, 10:22 AM CDT | River Flood Warning | DMX | Black Hawk | 3 days |
| Jun 10, 12:42 PM CDT | Special Weather Statement | DMX | Audubon | 48 min |
| Jun 10, 1:49 PM CDT | Special Weather Statement | DMX | Audubon | 3 hr |
Nearby
Areal Flood Warnings in Iowa, 2018Every areal flood warning in 2018
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.