Alert archive / Iowa / Flash Flood Watches in 2019

Flash Flood Watch 16, NWS Des Moines, IA

September 30, 201950 counties in Iowa

NWS Des Moines, IA issued this flash flood watch at Sep 30, 2019, 4:03 AM CDT for 50 counties in Iowa. It took effect at Sep 30, 2019, 10:00 PM CDT. It was in force for 29 hr.

The area

The counties it named.

The facts

Issued: Sep 30, 2019, 4:03 AM CDT (09:03 UTC)
In effect from: Sep 30, 2019, 10:00 PM CDT
Expired: Oct 2, 2019, 3:22 AM CDT
In force: 29 hr
Issued by: NWS Des Moines, IA
Flood severity: None

All 50 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, 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), 26 km from the middle of the area, began a volume at 09:01 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 flash 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 flash flood watch went out at Sep 30, 3:55 AM CDT, 8 minutes earlier.

Area forecast discussion, Sep 30, 3:55 AM CDT, 8 minutes before

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Hazardous weather outlook, Sep 29, 3:51 PM CDT, 12 hours 12 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
Sep 30, 10:57 AM CDT	River Flood Watch	DMX	Black Hawk	7 days
Sep 30, 10:57 AM CDT	River Flood Watch	DMX	Black Hawk	6 days
Sep 30, 10:57 AM CDT	River Flood Watch	DMX	Webster	5 days
Sep 30, 10:57 AM CDT	River Flood Watch	DMX	Boone, Hamilton, Webster	6 days
Sep 30, 10:57 AM CDT	River Flood Watch	DMX	Polk	21 days
Sep 30, 10:57 AM CDT	River Flood Watch	DMX	Humboldt	6 days
Sep 30, 10:57 AM CDT	River Flood Watch	DMX	Polk	21 days
Sep 30, 10:57 AM CDT	River Flood Watch	DMX	Dallas, Greene	21 days

Nearby

Flash Flood Watches in Iowa, 2019 Every flash flood watch in 2019

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.