Alert archive / Iowa / River Flood Warnings in 2020

River Flood Warning 10, NWS Des Moines, IA

June 22, 2020Tama County, Iowa

NWS Des Moines, IA issued this river flood warning at Jun 22, 2020, 2:30 PM CDT for Tama County, Iowa. It took effect at Jun 23, 2020, 7:00 AM CDT. It was in force for 62 hr.

The area

The counties it named.

The facts

Issued: Jun 22, 2020, 2:30 PM CDT (19:30 UTC)
In effect from: Jun 23, 2020, 7:00 AM CDT
Expired: Jun 25, 2020, 8:50 PM CDT
In force: 62 hr
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: Moderate

County Tama County, IA

The radar

The Des Moines radar (KDMX), 106 km from the middle of the area, began a volume at 19:31 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 Iowa River near Tama Hwy E49 (TMAI4).

Action stage: 11 ft
Minor stage: 12.5 ft
Moderate stage: 13 ft
Major stage: 14 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05451770, 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 Jun 22, 2:26 PM CDT, 4 minutes earlier.

Area forecast discussion, Jun 22, 2:26 PM CDT, 4 minutes before

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Hazardous weather outlook, Jun 22, 5:37 AM CDT, 8 hours 53 minutes before

Hazardous Weather Outlook
National Weather Service Des Moines IA
537 AM CDT Mon Jun 22 2020

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-231100-
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-
537 AM CDT Mon Jun 22 2020

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

Although the severe potential is low overall today, a few strong
storms with gusty wind and small hail are still possible through
late this afternoon.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Non-severe thunderstorms are possible northeast both Tuesday and
Wednesday afternoons.

Thunderstorm chances increase again later this week however.
Although details will be better known in the coming days, there
may be some potential for severe weather, heavy rains and
flooding.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed briefly today, but with a better potential
later this week.

Small

In the hours before

Local storm report, Jun 22, 1:41 PM CDT, 49 minutes before

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Local storm report, Jun 22, 1:43 PM CDT, 47 minutes before

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Local storm report, Jun 22, 1:44 PM CDT, 46 minutes before

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Local storm report, Jun 22, 1:47 PM CDT, 43 minutes before

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Local storm report, Jun 22, 1:52 PM CDT, 38 minutes before

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Local storm report, Jun 22, 1:54 PM CDT, 36 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
Jun 21, 7:21 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	39 min
Jun 21, 7:38 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin	52 min
Jun 21, 7:55 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Hardin	35 min
Jun 21, 8:08 PM CDT	Severe Thunderstorm Warning	DMX	Bremer, Butler, Franklin	22 min
Jun 21, 8:30 PM CDT	Severe Thunderstorm Warning	DMX	Bremer, Butler, Franklin, Hardin	45 min
Jun 21, 8:56 PM CDT	Severe Thunderstorm Warning	DMX	Bremer	34 min
Jun 21, 9:00 PM CDT	Flash Flood Warning	DMX	Butler, Franklin	6 hr
Jun 21, 9:14 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler	46 min
Jun 22, 1:04 AM CDT	Special Weather Statement	DMX	Polk	41 min
Jun 22, 1:18 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Polk	42 min
Jun 22, 1:46 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Poweshiek	44 min
Jun 22, 2:30 AM CDT	Areal Flood Warning	DMX	Grundy, Marshall, Tama	24 hr
Jun 22, 2:42 AM CDT	Areal Flood Warning	DMX	Butler, Franklin	19 hr
Jun 22, 2:47 AM CDT	Special Weather Statement	DMX	Poweshiek	28 min
Jun 22, 5:09 AM CDT	Special Weather Statement	DMX	Clarke, Decatur	66 min
Jun 22, 7:50 AM CDT	Areal Flood Warning	DMX	Hardin, Marshall	24 hr
Jun 22, 8:22 AM CDT	River Flood Warning	DMX	Black Hawk	5 days
Jun 22, 10:20 AM CDT	Areal Flood Warning	DMX	Black Hawk, Tama	24 hr
Jun 22, 11:13 AM CDT	Areal Flood Warning	DMX	Tama	24 hr
Jun 22, 2:30 PM CDT	River Flood Warning	DMX	Black Hawk	4 days

Nearby

River Flood Warnings in Iowa, 2020 Every river flood warning in 2020

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.