Alert archive / Kansas / River Flood Warnings in 2020

River Flood Warning 10, NWS Topeka, KS

May 25, 2020Marshall County, Kansas

NWS Topeka, KS issued this river flood warning at May 25, 2020, 11:39 AM CDT for Marshall County, Kansas. It took effect at May 25, 2020, 2:58 PM CDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: May 25, 2020, 11:39 AM CDT (16:39 UTC)
In effect from: May 25, 2020, 2:58 PM CDT
Expired: May 25, 2020, 8:23 PM CDT
In force: 5 hr
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Flood severity: Minor

County Marshall County, KS

The radar

The Topeka radar (KTWX), 91 km from the middle of the area, began a volume at 16:40 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 Vermillion River at Frankfort (FKFK1). The gauge peaked at 18.20 ft at May 25, 2020, 3:00 PM CDT.

Action stage: 14 ft
Minor stage: 19 ft
Moderate stage: 27.5 ft
Major stage: 40.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06885500, 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 25, 5:41 AM CDT, 5 hours 58 minutes earlier.

Area forecast discussion, May 25, 5:41 AM CDT, 5 hours 58 minutes before

Area Forecast Discussion
National Weather Service Topeka KS
541 AM CDT Mon May 25 2020

...Update to aviation forecast discussion...

.SHORT TERM...(Today and tonight)
Issued at 330 AM CDT Mon May 25 2020

Complex large scale upper trof continues to envelop much of the
Central US this morning, extending from the prairies of Montana
southward into the Texas coast. Various impulses are noted in the
flow, one of which as brought overnight rainfall and flash flooding
to portions of the central and western forecast area.  Another is
poised in Central Oklahoma and moving northeast, followed by a
larger scale shortwave trof over Texas.  The passing of these
features, and by the larger upper trof as a whole into Tuesday, will
bring continued chances for rain through the short term.  As the
southern portion of the system cuts off and drifts over the southern
plains, rain chances will continue off and on through the late week.

For the near term, will keep flash flood watch through the day today
as the next impulse brings additional chances for locally heavy
rainfall. Anticipate we will also see some rises on area rivers as
the light/moderate rain continues today. The surface front still
remains over western Kansas, with a more unstable airmass to its
east to work with as the impulses to our south lift northward,
albeit more of a 'skinny cape' regime. Clouds and rain chances
hold high temperatures in the upper 60s northwest to the middle
70s east, and with some drier air later tonight following the
frontal passage, could see lows in the 50s in north central Kansas
late tonight.

.LONG TERM...(Tuesday through Sunday)
Issued at 330 AM CDT Mon May 25 2020

Models continue to struggle with the track of the cut off upper
low over Texas through the period, although some agreement that it
will drift far enough south and even possibly west after bringing
rain chances into Thursday to finally dry things out by Friday
and into the weekend. Highs are generally near normal in the 70s
with overnight lows in the 50s and 60s.

&&

.AVIATION...(For the 12Z TAFS through 12Z Tuesday morning)
Issued at 501 AM CDT Mon May 25 2020

For east is a tricky one with several rounds of precipitation
expected today, along with respective clouds and visby. Think next
batch will make it to terminals around 15z, with the next more
concentrated round later in the day as the winds shift west and
front comes through. Could see some IFR cigs but not enough
confidence this far out to put in place.

&&

.TOP WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch through this evening for KSZ008>012-020>024-
026-034>039-054.

&&

SHORT TERM...67
LONG TERM...67
AVIATION...67

Hazardous weather outlook, May 25, 11:22 AM CDT, 17 minutes before

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In the hours before

Local storm report, May 25, 6:19 AM CDT, 5 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
619 AM CDT MON MAY 25 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0619 AM     HEAVY RAIN       BLAINE                  39.50N 96.40W
05/25/2020  M2.40 INCH       POTTAWATOMIE       KS   CO-OP OBSERVER

&&

ST

Local storm report, May 25, 7:42 AM CDT, 3 hours 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
742 AM CDT MON MAY 25 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0741 AM     HEAVY RAIN       6 N WELLS               39.22N 97.55W
05/25/2020  M1.80 INCH       OTTAWA             KS   TRAINED SPOTTER

&&

BD

Local storm report, May 25, 8:28 AM CDT, 3 hours 11 minutes before

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Local storm report, May 25, 9:32 AM CDT, 2 hours 7 minutes before

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Local storm report, May 25, 10:41 AM CDT, 58 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 24, 7:37 PM CDT	Special Weather Statement	TOP	Ottawa	38 min
May 24, 8:05 PM CDT	Severe Thunderstorm Warning	TOP	Ottawa	40 min
May 24, 8:07 PM CDT	Special Weather Statement	TOP	Geary	23 min
May 24, 8:38 PM CDT	Severe Thunderstorm Warning	TOP	Geary	52 min
May 24, 8:48 PM CDT	River Flood Warning	TOP	Marshall	3 days
May 24, 9:03 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson	42 min
May 24, 9:06 PM CDT	Severe Thunderstorm Warning	TOP	Ottawa	39 min
May 24, 9:10 PM CDT	Flash Flood Warning	TOP	Geary	4 hr
May 24, 9:23 PM CDT	Severe Thunderstorm Warning	TOP	Geary	52 min
May 24, 9:24 PM CDT	Flash Flood Warning	TOP	Ottawa	4 hr
May 24, 9:48 PM CDT	Special Weather Statement	TOP	Dickinson, Ottawa	57 min
May 24, 10:11 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Riley	27 min
May 24, 10:32 PM CDT	Flash Flood Warning Considerable damage threat	TOP	Geary	4 hr
May 24, 10:41 PM CDT	Flash Flood Warning	TOP	Dickinson	4 hr
May 24, 10:49 PM CDT	Special Weather Statement	TOP	Dickinson, Geary, Ottawa, Wabaunsee	56 min
May 24, 11:47 PM CDT	Special Weather Statement	TOP	Dickinson, Geary, Wabaunsee	43 min
May 25, 12:03 AM CDT	River Flood Warning	TOP	Dickinson	21 hr
May 25, 12:28 AM CDT	Special Weather Statement	TOP	Pottawatomie	32 min
May 25, 1:31 AM CDT	River Flood Warning	TOP	Dickinson, Ottawa, Saline	9 hr
May 25, 1:33 AM CDT	Areal Flood Warning	TOP	Ottawa	5 hr
May 25, 1:47 AM CDT	Flash Flood Warning	TOP	Clay, Dickinson, Geary, Morris, Pottawatomie, Riley	4 hr
May 25, 2:49 AM CDT	Areal Flood Advisory	TOP	Pottawatomie	3 hr
May 25, 5:38 AM CDT	Areal Flood Warning	TOP	Dickinson, Geary, Riley	3 hr
May 25, 7:54 AM CDT	River Flood Warning	TOP	Pottawatomie	4 hr
May 25, 8:48 AM CDT	Areal Flood Warning	TOP	Dickinson, Geary, Morris, Ottawa, Riley	8 hr
May 25, 1:11 PM CDT	Special Weather Statement	TOP	Jefferson	34 min
May 25, 1:24 PM CDT	Special Weather Statement	TOP	Jefferson	36 min
May 25, 1:50 PM CDT	Special Weather Statement	TOP	Shawnee	25 min
May 25, 1:54 PM CDT	Special Weather Statement	TOP	Jefferson	36 min

Nearby

River Flood Warnings in Kansas, 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.