Alert archive / Iowa / River Flood Warnings in 2024

River Flood Warning 7, NWS Des Moines, IA

May 9, 2024Black Hawk County, Iowa

NWS Des Moines, IA issued this river flood warning at May 9, 2024, 11:24 AM CDT for Black Hawk County, Iowa. It took effect at May 10, 2024, 4:36 AM CDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: May 9, 2024, 11:24 AM CDT (16:24 UTC)
In effect from: May 10, 2024, 4:36 AM CDT
Expired: May 10, 2024, 8:25 AM CDT
In force: 4 hr
Issued by: NWS Des Moines, IA
Area: Storm-based polygon

County Black Hawk County, IA

The radar

The Des Moines radar (KDMX), 143 km from the middle of the area, began a volume at 16:24 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 Black Hawk Creek at Hudson (HUDI4).

Action stage: 14 ft
Minor stage: 15 ft
Moderate stage: 16 ft
Major stage: 19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05463500, 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 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 river flood warning went out at May 9, 6:22 AM CDT, 5 hours 2 minutes earlier.

Area forecast discussion, May 9, 6:22 AM CDT, 5 hours 2 minutes before

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Hazardous weather outlook, May 9, 5:49 AM CDT, 5 hours 35 minutes before

Hazardous Weather Outlook
National Weather Service Des Moines IA
549 AM CDT Thu May 9 2024

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-101100-
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-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-
Appanoose-Davis-
549 AM CDT Thu May 9 2024

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

Scattered non severe thunderstorms are possible today.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

A few thunderstorms are possible Friday afternoon and again Sunday
afternoon with additional chances possible at times next week. The
severe weather threat for individual time periods will continue to
be assessed over the next several days.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:10 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Polk, Story	50 min
May 8, 7:36 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton, Hardin, Story	54 min
May 8, 7:59 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Hardin, Marshall, Story	46 min
May 8, 8:53 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Marshall, Tama	52 min
May 8, 9:20 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Calhoun, Carroll, Greene, Guthrie	40 min
May 8, 9:24 PM CDT	River Flood Warning	DMX	Cerro Gordo, Floyd, Worth	13 hr
May 8, 9:32 PM CDT	River Flood Watch	DMX	Black Hawk	14 hr
May 8, 9:32 PM CDT	River Flood Watch	DMX	Black Hawk, Bremer, Butler	13 hr
May 8, 9:32 PM CDT	River Flood Watch	DMX	Black Hawk	13 hr
May 8, 9:39 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Tama	51 min
May 8, 10:52 PM CDT	Special Weather Statement	DMX	Boone	23 min
May 8, 11:08 PM CDT	Special Weather Statement	DMX	Story	22 min
May 9, 11:00 AM CDT	River Flood Watch	DMX	Boone, Hamilton, Webster	10 hr

Nearby

River Flood Warnings in Iowa, 2024 Every river flood warning in 2024

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.