Alert archive / Iowa / River Flood Watches in 2018
River Flood Watch 69, NWS Des Moines, IA
NWS Des Moines, IA issued this river flood watch at Oct 8, 2018, 10:31 PM CDT for Decatur County, Iowa. It took effect at Oct 10, 2018, 8:42 AM CDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Oct 8, 2018, 10:31 PM CDT (03:31 UTC)
- In effect from
- Oct 10, 2018, 8:42 AM CDT
- Expired
- Oct 9, 2018, 1:10 AM CDT
- In force
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Flood severity
- None
County Decatur County, IA
The radar
The Des Moines radar (KDMX), 111 km from the middle of the area, began a volume at 03:34 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 river
Written for the forecast point Thompson River at Davis City (DVSI4). The gauge peaked at 13.07 ft at Oct 9, 2018, 8:00 AM CDT.
- Action stage
- 8 ft
- Minor stage
- 12 ft
- Moderate stage
- 20 ft
- Major stage
- 24 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 06898000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
What forecasters said that day
The local office's own words before this river flood watch 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 river flood watch went out at Oct 8, 7:36 PM CDT, 2 hours 55 minutes earlier.
Area forecast discussion, Oct 8, 7:36 PM CDT, 2 hours 55 minutes before
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</html>Hazardous weather outlook, Oct 8, 4:21 AM CDT, 18 hours 10 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 421 AM CDT Mon Oct 8 2018 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>084-092>094-090930- 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-Tama-Audubon-Guthrie-Dallas-Polk-Jasper- Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union- Clarke-Lucas-Taylor-Ringgold-Decatur- 421 AM CDT Mon Oct 8 2018 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight Areas of heavy rainfall are possible today and tonight. Reference the Flood Watch for additional details. In additional, isolated severe storms are possible this afternoon and evening. Damaging wind gusts are the primary threat. A Flood Watch is in effect for the area in addition to other localized River Flood Watches. Please refer to the National Weather Service website at weather.gov/desmoines for further details. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Heavy rainfall will remain possible through Tuesday night. A slight risk for severe weather is forecast for Tuesday afternoon and evening. Damaging wind gusts are the primary threat. A Flood Watch remains in effect for the area through Tuesday night in addition to other localized River Flood Watches. Please refer to the National Weather Service website at weather.gov/desmoines for further details. .SPOTTER INFORMATION STATEMENT... Spotters may be needed for flooding and heavy rain reports through Tuesday night. IAZ085-086-095>097-090930- Monroe-Wapello-Wayne-Appanoose-Davis- 421 AM CDT Mon Oct 8 2018 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight Showers and thunderstorms are possible today and tonight. Locally heavy rainfall and and isolated severe storm are possible. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Periodic showers and a few thunderstorms are forecast through early Wednesday. The primary threat is locally heavy rainfall which may lead to overland flooding, ponding water and even localized flash flooding. There is a Slight Risk of severe storms Tuesday afternoon and evening with the primary threat being damaging wind gusts. .SPOTTER INFORMATION STATEMENT... Spotters may be needed for flooding and heavy rain reports and possible severe weather late Tuesday.
In the hours before
Local storm report, Oct 8, 7:02 PM CDT, 3 hours 29 minutes before
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</html>Local storm report, Oct 8, 7:04 PM CDT, 3 hours 27 minutes before
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</html>Local storm report, Oct 8, 8:21 PM CDT, 2 hours 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
821 PM CDT MON OCT 8 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0756 PM TORNADO 8 N WOODBURN 41.13N 93.58W
10/08/2018 CLARKE IA EMERGENCY MNGR
DAMAGE TO HOME IN THE 1200 BLOCK OF 330TH
AVE. TIME ESTIMATED VIA RADAR.
&&
AKThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 8, 7:11 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 34 min |
| Oct 8, 7:23 PM CDT | Tornado Warning | DMX | Clarke, Decatur | 37 min |
| Oct 8, 7:59 PM CDT | Tornado Warning | DMX | Clarke, Lucas, Warren | 31 min |
| Oct 8, 9:54 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek | 21 min |
| Oct 8, 10:03 PM CDT | Tornado Warning | DMX | Poweshiek | 15 min |
| Oct 8, 10:26 PM CDT | River Flood Warning | DMX | Polk | 7 days |
| Oct 8, 10:26 PM CDT | River Flood Warning | DMX | Polk | 7 days |
| Oct 9, 12:58 AM CDT | River Flood Warning | DMX | Decatur | 4 days |
| Oct 9, 1:48 AM CDT | Areal Flood Warning | DMX | Clarke, Decatur, Jasper, Lucas, Mahaska, Marion and 6 more | 24 hr |
| Oct 9, 2:49 AM CDT | River Flood Warning | DMX | Polk, Story | 3 days |
| Oct 9, 6:39 AM CDT | River Flood Warning | DMX | Marshall | 7 days |
| Oct 9, 6:39 AM CDT | River Flood Warning | DMX | Black Hawk | 6 days |
| Oct 9, 6:39 AM CDT | River Flood Warning | DMX | Dallas, Greene | 5 days |
| Oct 9, 10:20 AM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 35 hr |
| Oct 9, 10:20 AM CDT | River Flood Warning | DMX | Lucas, Wayne | 64 hr |
| Oct 9, 11:33 AM CDT | River Flood Warning | DMX | Dallas, Polk | 6 days |
| Oct 9, 12:38 PM CDT | River Flood Watch | DMX | Davis, Wapello | 10 hr |
| Oct 9, 2:16 PM CDT | Tornado Warning | DMX | Mahaska, Marion, Monroe | 29 min |
| Oct 9, 3:22 PM CDT | River Flood Warning | DMX | Story | 7 hr |
| Oct 9, 3:22 PM CDT | River Flood Warning | DMX | Story | 20 hr |
| Oct 9, 3:32 PM CDT | Tornado Warning | DMX | Appanoose, Monroe | 43 min |
| Oct 9, 3:42 PM CDT | Tornado Warning | DMX | Mahaska, Marion, Monroe | 22 min |
| Oct 9, 4:21 PM CDT | Tornado Warning | DMX | Poweshiek, Tama | 24 min |
| Oct 9, 4:28 PM CDT | Tornado Warning | DMX | Ringgold, Taylor | 47 min |
| Oct 9, 4:47 PM CDT | River Flood Watch | DMX | Jasper, Marion, Polk | 29 hr |
| Oct 9, 4:58 PM CDT | Tornado Warning | DMX | Tama | 32 min |
| Oct 9, 4:59 PM CDT | Tornado Warning | DMX | Jasper, Poweshiek | 31 min |
| Oct 9, 5:13 PM CDT | Tornado Warning | DMX | Adair, Adams, Union | 32 min |
| Oct 9, 5:44 PM CDT | Tornado Warning | DMX | Adair | 46 min |
| Oct 9, 6:11 PM CDT | Tornado Warning | DMX | Adair, Dallas, Guthrie | 49 min |
| Oct 9, 6:30 PM CDT | Tornado Warning | DMX | Polk, Warren | 30 min |
Nearby
River Flood Watches in Iowa, 2018Every river flood watch 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.