Alert archive / Iowa / River Flood Watches in 2019

River Flood Watch 39, NWS Des Moines, IA

May 18, 2019Dallas County, Greene County, Iowa

NWS Des Moines, IA issued this river flood watch at May 18, 2019, 10:11 AM CDT for Dallas County, Greene County, Iowa. It took effect at May 20, 2019, 4:00 PM CDT. It was in force for 3 days.

The area

The counties it named.

The facts

Issued: May 18, 2019, 10:11 AM CDT (15:11 UTC)
In effect from: May 20, 2019, 4:00 PM CDT
Expired: May 23, 2019, 7:00 PM CDT
In force: 3 days
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: None

Counties Dallas County, IA, Greene County, IA

The radar

The Des Moines radar (KDMX), 44 km from the middle of the area, began a volume at 15:15 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 North Raccoon River near Perry (PROI4).

Action stage: 14 ft
Minor stage: 15 ft
Moderate stage: 18 ft
Major stage: 20 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, 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 May 18, 5:58 AM CDT, 4 hours 13 minutes earlier.

Area forecast discussion, May 18, 5:58 AM CDT, 4 hours 13 minutes before

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Hazardous weather outlook, May 18, 4:36 AM CDT, 5 hours 35 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
May 17, 7:13 PM CDT	Special Weather Statement	DMX	Cerro Gordo	47 min
May 18, 3:59 AM CDT	Flash Flood Watch	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 24 more	21 hr
May 18, 10:11 AM CDT	River Flood Watch	DMX	Polk	7 days
May 18, 10:11 AM CDT	River Flood Watch	DMX	Davis, Wapello	11 hr
May 18, 10:11 AM CDT	River Flood Watch	DMX	Polk	7 days
May 18, 3:56 PM CDT	Special Weather Statement	DMX	Appanoose	19 min
May 18, 4:18 PM CDT	Special Weather Statement	DMX	Appanoose, Davis, Lucas, Monroe, Wapello, Wayne	42 min
May 18, 5:38 PM CDT	Special Weather Statement	DMX	Davis, Wapello	52 min
May 18, 6:28 PM CDT	Special Weather Statement	DMX	Poweshiek	62 min

Nearby

River Flood Watches in Iowa, 2019 Every river 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; the gauge from the NWS water service and the USGS.