Alert archive / Kansas / River Flood Warnings in 2024

River Flood Warning 30, NWS Topeka, KS

July 4, 2024Lyon County, Osage County, Kansas

NWS Topeka, KS issued this river flood warning at Jul 4, 2024, 5:51 AM CDT for Lyon County, Osage County, Kansas. It took effect at Jul 4, 2024, 7:00 AM CDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued: Jul 4, 2024, 5:51 AM CDT (10:51 UTC)
In effect from: Jul 4, 2024, 7:00 AM CDT
Expired: Jul 4, 2024, 6:23 PM CDT
In force: 11 hr
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Flood severity: Moderate

Counties Lyon County, KS, Osage County, KS

The radar

The Topeka radar (KTWX), 55 km from the middle of the area, began a volume at 10:53 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 Marais Des Cygnes River near Reading (RDNK1). The gauge peaked at 19.70 ft at Jul 4, 2024, 2:00 PM CDT.

Action stage: 14 ft
Minor stage: 19 ft
Moderate stage: 21 ft
Major stage: 45 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06910800, 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 Jul 4, 2:46 AM CDT, 3 hours 5 minutes earlier.

Area forecast discussion, Jul 4, 2:46 AM CDT, 3 hours 5 minutes before

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Hazardous weather outlook, Jul 4, 3:06 AM CDT, 2 hours 45 minutes before

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In the hours before

Special weather statement, Jul 4, 2:10 AM CDT, 3 hours 41 minutes before

Special Weather Statement
National Weather Service Topeka KS
210 AM CDT Thu Jul 4 2024

KSZ023-024-026-038>040-055-040745-
Wabaunsee-Shawnee-Pottawatomie-Jefferson-Douglas-Jackson-Osage-
210 AM CDT Thu Jul 4 2024

...STRONG THUNDERSTORMS WILL IMPACT WESTERN JEFFERSON...SHAWNEE...
EASTERN WABAUNSEE...NORTHWESTERN DOUGLAS...NORTHERN OSAGE...
SOUTHEASTERN POTTAWATOMIE AND JACKSON COUNTIES THROUGH 245 AM CDT...

At 209 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles north of Emmett to near Maple Hill to 6
miles north of Allen. Movement was east at 50 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down small tree limbs and blow
         around unsecured objects.

Locations impacted include...
Topeka, Holton, Carbondale, Valley Falls, Rossville, Eskridge,
Tecumseh, St. Marys, Richland, Dover, Silver Lake, Auburn, Overbrook,
Burlingame, Meriden, Scranton, Hoyt, Ozawkie, Maple Hill, and
Mayetta.

This includes the following highways...
 Interstate 70 between mile markers 336 and 355.
 Kansas Turnpike between mile markers 156 and 191.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3875 9555 3875 9620 3904 9614 3943 9615
      3950 9557 3942 9557 3942 9547 3905 9542
TIME...MOT...LOC 0709Z 268DEG 44KT 3937 9607 3904 9604 3875 9618

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Flanagan

Special weather statement, Jul 4, 2:39 AM CDT, 3 hours 12 minutes before

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Local storm report, Jul 4, 2:57 AM CDT, 2 hours 54 minutes before

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Special weather statement, Jul 4, 3:09 AM CDT, 2 hours 42 minutes before

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Local storm report, Jul 4, 5:36 AM CDT, 15 minutes before

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Local storm report, Jul 4, 5:37 AM CDT, 14 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
Jul 3, 10:02 PM CDT	Special Weather Statement	TOP	Republic	28 min
Jul 3, 10:44 PM CDT	Flood Watch	TOP	Anderson, Coffey, Douglas, Franklin, Lyon, Osage and 2 more	8 hr
Jul 3, 10:44 PM CDT	Special Weather Statement	TOP	Republic	46 min
Jul 3, 11:45 PM CDT	Special Weather Statement	TOP	Ottawa	45 min
Jul 4, 12:01 AM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Ottawa	44 min
Jul 4, 12:35 AM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Clay, Dickinson, Geary, Ottawa, Riley	40 min
Jul 4, 1:09 AM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Geary, Morris, Pottawatomie, Riley	36 min
Jul 4, 1:23 AM CDT	Special Weather Statement	TOP	Lyon	37 min
Jul 4, 1:39 AM CDT	Severe Thunderstorm Warning	TOP	Geary, Lyon, Morris, Pottawatomie, Riley, Wabaunsee	36 min
Jul 4, 2:10 AM CDT	Special Weather Statement	TOP	Jackson, Shawnee	35 min
Jul 4, 2:12 AM CDT	Areal Flood Advisory	TOP	Geary, Pottawatomie, Riley, Wabaunsee	2 hr
Jul 4, 2:35 AM CDT	Flash Flood Warning	TOP	Douglas, Jefferson, Osage, Shawnee	4 hr
Jul 4, 2:39 AM CDT	Special Weather Statement	TOP	Osage, Shawnee	36 min
Jul 4, 3:09 AM CDT	Special Weather Statement	TOP	Anderson, Douglas, Franklin	51 min
Jul 4, 3:33 AM CDT	Flash Flood Warning	TOP	Douglas, Franklin	3 hr
Jul 4, 7:54 AM CDT	River Flood Warning	TOP	Wabaunsee	6 hr

Nearby

River Flood Warnings in Kansas, 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.