Alert archive / Kansas / River Flood Warnings in 2026

River Flood Warning 20, NWS Topeka, KS

May 31, 2026Ottawa County, Kansas

NWS Topeka, KS issued this river flood warning at May 31, 2026, 6:13 AM CDT for Ottawa County, Kansas. It took effect at May 31, 2026, 9:05 AM CDT. It was in force for 47 hr.

The area

The counties it named.

The facts

Issued: May 31, 2026, 6:13 AM CDT (11:13 UTC)
In effect from: May 31, 2026, 9:05 AM CDT
Expired: Jun 2, 2026, 8:07 AM CDT
In force: 47 hr
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Flood severity: Minor

County Ottawa County, KS

The radar

The Topeka radar (KTWX), 123 km from the middle of the area, began a volume at 11:13 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 Salt Creek (KS) near Ada (ADAK1). The gauge peaked at 19.47 ft at Jun 1, 2026, 12:00 AM CDT.

Action stage: 13 ft
Minor stage: 18 ft
Moderate stage: 20 ft
Major stage: 24 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06876700, 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 Topeka, KS wrote its last area forecast discussion before this river flood warning went out at May 31, 2:43 AM CDT, 3 hours 30 minutes earlier.

Area forecast discussion, May 31, 2:43 AM CDT, 3 hours 30 minutes before

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Hazardous weather outlook, May 31, 2:48 AM CDT, 3 hours 25 minutes before

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In the hours before

Special weather statement, May 31, 12:31 AM CDT, 5 hours 42 minutes before

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Special weather statement, May 31, 1:17 AM CDT, 4 hours 56 minutes before

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Special weather statement, May 31, 2:09 AM CDT, 4 hours 4 minutes before

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Special weather statement, May 31, 2:21 AM CDT, 3 hours 52 minutes before

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Special weather statement, May 31, 2:51 AM CDT, 3 hours 22 minutes before

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Local storm report, May 31, 5:14 AM CDT, 59 minutes before

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The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 7:38 PM CDT	Special Weather Statement	TOP	Ottawa	52 min
May 30, 8:06 PM CDT	Special Weather Statement	TOP	Dickinson, Geary, Morris	24 min
May 30, 8:28 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Pottawatomie, Riley	27 min
May 30, 8:35 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie	24 min
May 30, 9:17 PM CDT	Special Weather Statement	TOP	Marshall, Pottawatomie	28 min
May 30, 9:44 PM CDT	Special Weather Statement	TOP	Jackson	31 min
May 30, 9:51 PM CDT	Special Weather Statement	TOP	Lyon	39 min
May 30, 10:06 PM CDT	Special Weather Statement	TOP	Lyon	24 min
May 30, 10:28 PM CDT	Special Weather Statement	TOP	Lyon, Wabaunsee	32 min
May 30, 10:32 PM CDT	Special Weather Statement	TOP	Jackson	28 min
May 30, 10:50 PM CDT	Special Weather Statement	TOP	Coffey, Osage	25 min
May 30, 11:14 PM CDT	Special Weather Statement	TOP	Anderson, Coffey	46 min
May 30, 11:58 PM CDT	Special Weather Statement	TOP	Anderson	47 min
May 31, 12:31 AM CDT	Special Weather Statement	TOP	Dickinson	29 min
May 31, 1:17 AM CDT	Special Weather Statement	TOP	Osage	28 min
May 31, 2:09 AM CDT	Special Weather Statement	TOP	Osage	36 min
May 31, 2:21 AM CDT	Special Weather Statement	TOP	Morris	39 min
May 31, 2:51 AM CDT	Special Weather Statement	TOP	Franklin	39 min
May 31, 3:02 AM CDT	Areal Flood Advisory	TOP	Dickinson	3 hr
May 31, 7:55 AM CDT	Special Weather Statement	TOP	Anderson	50 min
May 31, 8:38 AM CDT	River Flood Warning	TOP	Osage	6 hr
May 31, 2:22 PM CDT	River Flood Warning	TOP	Franklin	29 hr

Nearby

River Flood Warnings in Kansas, 2026 Every river flood warning in 2026

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.