Alert archive / Kansas / Flash Flood Warnings in 2026

Flash Flood Warning 28, NWS Topeka, KS

June 9, 2026Clay County, Dickinson County, Ottawa County, Kansas

NWS Topeka, KS issued this flash flood warning at Jun 9, 2026, 2:48 AM CDT for Clay County, Dickinson County, Ottawa County, Kansas. It was in force for 4 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 9, 2026, 2:48 AM CDT (07:48 UTC)
Expired: Jun 9, 2026, 6:31 AM CDT
In force: 4 hr
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Flood severity: None

Counties Clay County, KS, Dickinson County, KS, Ottawa County, KS

The radar

The Topeka radar (KTWX), 109 km from the middle of the area, began a volume at 07:52 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.

What was reported inside it

Time	Report	Where	Remark
Jun 9, 6:01 AM CDT	RAIN 2.86	6 N Wells, KS
Jun 9, 6:01 AM CDT	RAIN 2.86	6 N Wells, KS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 7.8 hours before the alert went out and 159 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2597 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 661 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

472 
WGUS53 KTOP 090748
FFWTOP
KSC027-041-143-090930-
/O.NEW.KTOP.FF.W.0028.260609T0748Z-260609T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Topeka KS
248 AM CDT Tue Jun 9 2026

The National Weather Service in Topeka has issued a

* Flash Flood Warning for...
  Northwestern Dickinson County in central Kansas...
  Southwestern Clay County in north central Kansas...
  Ottawa County in north central Kansas...

* Until 430 AM CDT.

* At 247 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 3 inches of 
  rain have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Minneapolis, Delphos, Wells, Manchester, Longford, Oak Hill and 
  Ada.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3931 9715 3906 9726 3906 9737 3911 9793
      3931 9793

FLASH FLOOD...RADAR INDICATED

$$

101

2 follow-up statements

887 
WGUS53 KTOP 090859
FFWTOP
KSC027-041-143-091200-
/O.EXT.KTOP.FF.W.0028.000000T0000Z-260609T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Topeka KS
359 AM CDT Tue Jun 9 2026

The National Weather Service in Topeka has extended the

* Flash Flood Warning for...
  Northwestern Dickinson County in central Kansas...
  Southwestern Clay County in north central Kansas...
  Ottawa County in north central Kansas...

* Until 700 AM CDT.

* At 358 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 inches of rain 
  have fallen. Additional rainfall amounts of 0.5 to 1 inch are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Minneapolis, Delphos, Wells, Manchester, Longford, Oak Hill and 
  Ada.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3931 9715 3906 9726 3906 9737 3911 9793
      3931 9793

FLASH FLOOD...RADAR INDICATED

$$

101

236 
WGUS73 KTOP 091131
FFSTOP

Flash Flood Statement
National Weather Service Topeka KS
631 AM CDT Tue Jun 9 2026

KSC027-041-143-091141-
/O.CAN.KTOP.FF.W.0028.000000T0000Z-260609T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clay KS-Dickinson KS-Ottawa KS-
631 AM CDT Tue Jun 9 2026

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN DICKINSON, 
SOUTHWESTERN CLAY AND OTTAWA COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flood Watch remains in effect until 700 AM CDT for portions of 
central, east central, north central, and northeast Kansas.

&&

LAT...LON 3931 9715 3906 9726 3906 9737 3911 9793
      3931 9793

$$

101

What forecasters said that day

The local office's own words before this flash 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 flash flood warning went out at Jun 9, 2:27 AM CDT, 21 minutes earlier. Its key messages:

A heat advisory is in effect from noon until 9pm today. Temperatures are expected to feel like it is 103 to 110 degrees.
Additional rounds of thunderstorms are possible (30-60%) tonight and into Thursday.
A break from the rain is expected Friday. More rain chances are forecast for the weekend with mild temperatures.

Area forecast discussion, Jun 9, 2:27 AM CDT, 21 minutes before

Area Forecast Discussion
National Weather Service Topeka KS
227 AM CDT Tue Jun 9 2026

.KEY MESSAGES...

- A heat advisory is in effect from noon until 9pm today.
  Temperatures are expected to feel like it is 103 to 110 degrees.

- Additional rounds of thunderstorms are possible (30-60%) tonight
  and into Thursday.

- A break from the rain is expected Friday. More rain chances are
  forecast for the weekend with mild temperatures.

&&

.DISCUSSION...
Issued at 227 AM CDT Tue Jun 9 2026

Apparent warm air advection has cause additional showers and storms
to develop behind the severe storms that occurred earlier last night.
These storms appear to be elevated and have not been as intense. With
the initial line of storms working over the airmass pretty good, I
expected this trend to continue. The lift is progged to weaken
towards sunrise as the low level jet veers to the west-southwest.

It is hard to figure out what will trigger storms this afternoon with
the models showing the upper trough remaining west of the forecast
area and any weak dry line also remaining west of the area. The RAP
is going an interesting thing in trying to keep a sudo warm front and
overrunning north of the boundary. With a strengthening pressure
gradient and deep mixing, it is hard to imagine this panning out. So
think the likely scenario is for storms to once again form out west
and potentially move into parts of north central KS. If storms
move into the area, a very unstable airmass with MUCAPE over 5000
J/kg would support a risk for severe weather.

The better chances for storms look to be Wednesday afternoon and
evening as a weak cold front pushes into northeast KS. This should
act as a focus for convergence and lift with a very moist and
unstable airmass ahead of the boundary. Bulk shear may be a little
better and again we'll need to watch for severe potential. This front
is progged to still be in the area Thursday when a shortwave swings
through the base of the upper low north of the forecast area. This
should push through front south and potentially trigger additional
thunderstorms and severe potential Thursday afternoon.

Surface ridging is expected to move into the region Friday bringing a
break from the precip chances and cooler highs in the 80s.
Unfortunately this break doesn't last long as shortwave energy
continues to rotate through the base of the upper low to the north.
So the forecast has chances for showers and storms through the
weekend. Eventually another surface ridge should push south by Monday
with some cooler temperatures and drier weather.

&&

.AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 1237 AM CDT Tue Jun 9 2026

The bowing segment will exit the terminals shortly. CAMs show some
scattered showers lingering for a few more hours. The precip is
expected to be completed by 10Z or 11Z with VFR conditions through
the day Tuesday.

&&

.TOP WATCHES/WARNINGS/ADVISORIES...
Heat Advisory from noon today to 9 PM CDT this evening for KSZ008-
KSZ009-KSZ010-KSZ011-KSZ012-KSZ020-KSZ021-KSZ022-KSZ023-KSZ024-
KSZ026-KSZ034-KSZ035-KSZ036-KSZ037-KSZ038-KSZ039-KSZ040-KSZ054-
KSZ055-KSZ056-KSZ058-KSZ059.
Flood Watch until 7 AM CDT this morning for KSZ020-KSZ021-KSZ022-
KSZ023-KSZ024-KSZ026-KSZ034-KSZ035-KSZ036-KSZ037-KSZ038-KSZ039-
KSZ040-KSZ054-KSZ055-KSZ056-KSZ058-KSZ059.

&&

DISCUSSION...Wolters
AVIATION...Wolters

Hazardous weather outlook, Jun 8, 3:20 PM CDT, 11 hours 28 minutes before

Hazardous Weather Outlook
National Weather Service Topeka KS
320 PM CDT Mon Jun 8 2026

KSZ008>012-020>024-026-034>040-054>056-058-059-092030-
Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley-
Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson-
320 PM CDT Mon Jun 8 2026

This Hazardous Weather Outlook is for portions of central Kansas,
east central Kansas, north central Kansas, and northeast Kansas.

.DAY ONE...This Afternoon and Tonight

There is an enhanced risk for severe storms this evening. Damaging
winds, large hail, a tornado or two, and heavy rainfall are all
possible.

A Flood Watch has been issued from 7 PM this evening into the
overnight hours. A quick inch or two of rain is probable, although
localized amounts up to 2 to 4 inches with high rainfall rates
could lead to flooding.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

A heat advisory has been posted for the entire area Tuesday from
noon until 9pm. Heat indices are forecast to be around 105
degrees. Avoid strenuous outdoor activity Tuesday afternoon and
early evening.

There is a 40 to 60 percent chance for thunderstorms Wednesday
afternoon and evening across parts of northeast and east central
Kansas. If storms develop, they could become severe with large
hail, damaging winds and heavy rain potential hazards.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this evening.

In the hours before

Local storm report, Jun 9, 12:55 AM CDT, 1 hour 53 minutes before

Preliminary Local Storm Report
National Weather Service Topeka KS
1255 AM CDT Tue Jun 9 2026

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

0149 AM     Tstm Wnd Gst     1 WSW Berryton          38.93N 95.65W
06/08/2026  M62 MPH          Shawnee            KS   ASOS

            ASOS station KFOE Topeka Forbes.

&&

Local storm report, Jun 9, 1:00 AM CDT, 1 hour 48 minutes before

Preliminary Local Storm Report
National Weather Service Topeka KS
100 AM CDT Tue Jun 9 2026

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

1253 AM     Tstm Wnd Gst     1 WSW Berryton          38.93N 95.65W
06/09/2026  M66 MPH          Shawnee            KS   ASOS

            ASOS station KFOE Topeka Forbes.

&&

Local storm report, Jun 9, 1:07 AM CDT, 1 hour 41 minutes before

Preliminary Local Storm Report
National Weather Service Topeka KS
107 AM CDT Tue Jun 9 2026

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

1228 AM     Tstm Wnd Dmg     2 NE Lawrence           38.99N 95.23W
06/09/2026                   Douglas            KS   Emergency Mngr

            Trees down across roadways and power lines
            down in north Lawrence. Time estimated from
            radar.

&&

Flanagan

Local storm report, Jun 9, 1:10 AM CDT, 1 hour 38 minutes before

Preliminary Local Storm Report
National Weather Service Topeka KS
110 AM CDT Tue Jun 9 2026

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

0105 AM     Tstm Wnd Dmg     2 SSW Tecumseh          39.02N 95.60W
06/09/2026                   Shawnee            KS   Fire Dept/Rescue

            A tree fell on a house, power lines down
            with tree limbs on them.

&&

Local storm report, Jun 9, 1:14 AM CDT, 1 hour 34 minutes before

Preliminary Local Storm Report
National Weather Service Topeka KS
114 AM CDT Tue Jun 9 2026

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

0112 AM     Flash Flood      Topeka                  39.05N 95.68W
06/09/2026                   Shawnee            KS   Emergency Mngr

            EM report: Water rescue at 6th and Polk for
            multiple people stuck in vehicles with
            rising floodwater.

&&

ng

Special weather statement, Jun 9, 2:08 AM CDT, 40 minutes before

Special Weather Statement
National Weather Service Topeka KS
208 AM CDT Tue Jun 9 2026

KSZ020-021-034-090745-
Clay-Cloud-Ottawa-
208 AM CDT Tue Jun 9 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN OTTAWA...NORTHWESTERN
CLAY AND CLOUD COUNTIES THROUGH 245 AM CDT...

At 208 AM CDT, Doppler radar was tracking a strong thunderstorm near
Glasco, moving east at 65 mph.

HAZARD...Wind gusts up to 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down twigs or small limbs and blow
         around objects. Hail damage to outdoor objects and
         vegetation is possible.

Locations impacted include...
Clyde, Miltonvale, Glasco, Delphos, and Aurora.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3942 9793 3962 9737 3957 9737 3957 9736
      3930 9735 3922 9793
TIME...MOT...LOC 0708Z 250DEG 56KT 3934 9788

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

Griesemer

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 8:15 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Ottawa	60 min
Jun 8, 8:41 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Ottawa	49 min
Jun 8, 8:55 PM CDT	Tornado Warning	TOP	Dickinson	50 min
Jun 8, 9:03 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Dickinson	57 min
Jun 8, 9:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Clay, Cloud, Dickinson, Ottawa	46 min
Jun 8, 9:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Dickinson	40 min
Jun 8, 9:28 PM CDT	Severe Thunderstorm Warning Destructive damage threat	TOP	Dickinson	47 min
Jun 8, 9:30 PM CDT	Tornado Warning	TOP	Dickinson	26 min
Jun 8, 9:53 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Clay, Dickinson, Geary, Riley	52 min
Jun 8, 9:54 PM CDT	Flash Flood Warning	TOP	Dickinson, Ottawa	9 hr
Jun 8, 9:57 PM CDT	Areal Flood Advisory	TOP	Clay, Dickinson, Ottawa	5 hr
Jun 8, 10:05 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Dickinson, Morris	55 min
Jun 8, 10:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Geary, Pottawatomie, Riley, Wabaunsee	47 min
Jun 8, 10:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Geary, Morris, Wabaunsee	67 min
Jun 8, 10:41 PM CDT	Tornado Warning	TOP	Morris	20 min
Jun 8, 10:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Jackson, Pottawatomie, Shawnee, Wabaunsee	66 min
Jun 8, 10:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Coffey, Lyon, Morris, Osage, Shawnee, Wabaunsee	65 min
Jun 8, 10:57 PM CDT	Flash Flood Warning	TOP	Clay, Dickinson, Geary, Pottawatomie, Riley	8 hr
Jun 8, 11:08 PM CDT	Areal Flood Advisory	TOP	Dickinson, Morris	3 hr
Jun 8, 11:17 PM CDT	Tornado Warning	TOP	Lyon, Osage	28 min
Jun 8, 11:42 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey, Douglas, Franklin, Jackson, Jefferson and 3 more	63 min
Jun 8, 11:51 PM CDT	River Flood Warning	TOP	Dickinson	34 hr
Jun 8, 11:53 PM CDT	River Flood Warning	TOP	Dickinson, Ottawa, Saline	4 days
Jun 8, 11:55 PM CDT	River Flood Warning	TOP	Dickinson	63 hr
Jun 8, 11:56 PM CDT	River Flood Warning	TOP	Ottawa	4 days
Jun 8, 11:59 PM CDT	Areal Flood Warning	TOP	Dickinson, Geary, Morris, Wabaunsee	33 min
Jun 9, 12:07 AM CDT	Tornado Warning	TOP	Douglas, Jefferson, Shawnee	23 min
Jun 9, 12:14 AM CDT	Flash Flood Warning	TOP	Pottawatomie, Riley, Shawnee, Wabaunsee	6 hr
Jun 9, 12:22 AM CDT	Flash Flood Warning	TOP	Jackson, Jefferson, Shawnee, Wabaunsee	6 hr
Jun 9, 12:27 AM CDT	Flash Flood Warning Considerable damage threat	TOP	Ottawa	6 hr
Jun 9, 12:32 AM CDT	Flash Flood Warning	TOP	Dickinson, Geary, Morris, Wabaunsee	6 hr
Jun 9, 12:37 AM CDT	River Flood Warning	TOP	Riley	10 hr
Jun 9, 12:43 AM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Anderson, Coffey, Douglas, Franklin, Jefferson, Osage and 1 more	32 min
Jun 9, 12:48 AM CDT	Flash Flood Warning	TOP	Douglas, Jefferson	6 hr
Jun 9, 12:53 AM CDT	River Flood Warning	TOP	Shawnee	8 hr
Jun 9, 1:22 AM CDT	Flash Flood Warning Considerable damage threat	TOP	Shawnee	5 hr
Jun 9, 2:08 AM CDT	Special Weather Statement	TOP	Cloud	37 min
Jun 9, 2:17 AM CDT	Flash Flood Warning	TOP	Lyon, Morris, Wabaunsee	4 hr
Jun 9, 2:24 AM CDT	River Flood Warning	TOP	Wabaunsee	18 hr
Jun 9, 3:12 AM CDT	Areal Flood Advisory	TOP	Clay, Cloud, Pottawatomie, Riley	2 hr
Jun 9, 3:27 AM CDT	River Flood Warning	TOP	Geary	11 hr
Jun 9, 3:27 AM CDT	River Flood Warning	TOP	Geary	51 hr
Jun 9, 3:37 AM CDT	Special Weather Statement	TOP	Riley	23 min
Jun 9, 6:23 AM CDT	Areal Flood Warning	TOP	Clay, Dickinson, Geary, Morris, Ottawa, Pottawatomie and 2 more	6 hr
Jun 9, 12:01 PM CDT	Areal Flood Warning	TOP	Dickinson, Ottawa	6 hr

Nearby

Flash Flood Warnings in Kansas, 2026 Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.