Alert archive / Iowa / Flood Watches in 2018

Flood Watch 1, NWS Des Moines, IA

October 7, 201851 counties in Iowa

NWS Des Moines, IA issued this flood watch at Oct 7, 2018, 3:52 PM CDT for 51 counties in Iowa. It took effect at Oct 8, 2018, 7:00 AM CDT. It was in force for 45 hr.

The area

The counties it named.

The facts

Issued: Oct 7, 2018, 3:52 PM CDT (20:52 UTC)
In effect from: Oct 8, 2018, 7:00 AM CDT
Expired: Oct 10, 2018, 3:40 AM CDT
In force: 45 hr
Issued by: NWS Des Moines, IA
Flood severity: None

All 51 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, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cerro Gordo County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Emmet County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Jasper County, IA, Kossuth County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Sac 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, Winnebago County, IA, Worth County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 23 km from the middle of the area, began a volume at 20:51 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.

What forecasters said that day

The local office's own words before this 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 flood watch went out at Oct 7, 12:24 PM CDT, 3 hours 28 minutes earlier.

Area forecast discussion, Oct 7, 12:24 PM CDT, 3 hours 28 minutes before

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Hazardous weather outlook, Oct 7, 4:08 AM CDT, 11 hours 44 minutes before

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The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 6, 9:06 PM CDT	River Flood Watch	DMX	Black Hawk	7 days
Oct 6, 9:06 PM CDT	River Flood Watch	DMX	Marshall	5 days
Oct 6, 9:06 PM CDT	River Flood Watch	DMX	Tama	5 days
Oct 6, 9:06 PM CDT	River Flood Watch	DMX	Polk	49 hr
Oct 6, 9:06 PM CDT	River Flood Watch	DMX	Humboldt	7 days
Oct 6, 9:06 PM CDT	River Flood Watch	DMX	Polk	8 days
Oct 6, 9:06 PM CDT	River Flood Watch	DMX	Dallas, Greene	7 days
Oct 7, 11:27 AM CDT	River Flood Watch	DMX	Webster	8 days
Oct 7, 11:27 AM CDT	River Flood Watch	DMX	Emmet	43 hr
Oct 7, 11:27 AM CDT	River Flood Watch	DMX	Humboldt, Kossuth	7 days

Nearby

Flood Watches in Iowa, 2018 Every 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.