Alert archive / Kansas / Flash Flood Warnings in 2026

Flash Flood Warning 12, NWS Wichita, KS

June 26, 2026Montgomery County, Kansas

NWS Wichita, KS issued this flash flood warning at Jun 26, 2026, 8:35 PM CDT for Montgomery 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 26, 2026, 8:35 PM CDT (01:35 UTC)
Expired
Jun 27, 2026, 12:45 AM CDT
In force
4 hr
Issued by
NWS Wichita, KS
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

County Montgomery County, KS

The radar

The Tulsa radar (KINX), 94 km from the middle of the area, began a volume at 01:38 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

TimeReportWhereRemark
Jun 26, 9:53 PM CDTFLASH FLOODCaney, KSKGGF reported a flooded vehicle in Caney due to high water.
Jun 26, 10:38 PM CDTFLASH FLOODCoffeyville, KSCorrects previous flash flood report from Coffeyville. Delayed report, several stalled out vehicles in town due to high water.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this flash flood warning; the first came 78 minutes after it went out.

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

Springfield, MO (KSGF), launched 00:00Z, 1.6 hours before the alert went out and 169 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2026-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2005 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2026-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2005 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
852 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

454 
WGUS53 KICT 270135
FFWICT
KSC125-270545-
/O.NEW.KICT.FF.W.0012.260627T0135Z-260627T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wichita KS
835 PM CDT Fri Jun 26 2026

The National Weather Service in Wichita has issued a

* Flash Flood Warning for...
  Southern Montgomery County in southeastern Kansas...

* Until 1245 AM CDT.

* At 835 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 3 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Coffeyville, Caney, Dearing and Tyro.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive into flooded areas or go around barricades. Nearly two 
feet of water will carry most vehicles away. Turn around, don't 
drown.

&&

LAT...LON 3707 9556 3705 9552 3704 9552 3701 9552
      3700 9552 3700 9553 3700 9566 3700 9570
      3700 9571 3700 9572 3700 9576 3700 9577
      3700 9579 3700 9581 3700 9586 3700 9588
      3700 9596 3705 9594 3706 9570

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

WI
3 follow-up statements
842 
WGUS73 KICT 270218
FFSICT

Flash Flood Statement
National Weather Service Wichita KS
918 PM CDT Fri Jun 26 2026

KSC125-270545-
/O.CON.KICT.FF.W.0012.000000T0000Z-260627T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery KS-
918 PM CDT Fri Jun 26 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT SATURDAY 
FOR SOUTHERN MONTGOMERY COUNTY...

At 918 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1 and 4 inches of rain have 
fallen. Additional rainfall amounts of 1 to 4 inches are possible in 
the warned area. Flash flooding is ongoing or expected to begin 
shortly.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Coffeyville, Caney, Dearing and Tyro.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive into flooded areas or go around barricades. Nearly two 
feet of water will carry most vehicles away. Turn around, don't 
drown.

&&

LAT...LON 3707 9556 3705 9552 3704 9552 3701 9552
      3700 9552 3700 9553 3700 9566 3700 9570
      3700 9571 3700 9572 3700 9576 3700 9577
      3700 9579 3700 9581 3700 9586 3700 9588
      3700 9596 3705 9594 3706 9570

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

WI
595 
WGUS73 KICT 270259
FFSICT

Flash Flood Statement
National Weather Service Wichita KS
959 PM CDT Fri Jun 26 2026

KSC125-270545-
/O.CON.KICT.FF.W.0012.000000T0000Z-260627T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery KS-
959 PM CDT Fri Jun 26 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT SATURDAY 
FOR SOUTHERN MONTGOMERY COUNTY...

At 959 PM CDT, Trained weather spotters reported thunderstorms 
producing heavy rain across the warned area. Between 2 and 5 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...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Trained spotters reported.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Coffeyville, Caney, Dearing and Tyro.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive into flooded areas or go around barricades. Nearly two 
feet of water will carry most vehicles away. Turn around, don't 
drown.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3707 9556 3705 9552 3704 9552 3701 9552
      3700 9552 3700 9553 3700 9566 3700 9570
      3700 9571 3700 9572 3700 9576 3700 9577
      3700 9579 3700 9581 3700 9586 3700 9588
      3700 9596 3705 9594 3706 9570

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

WI
616 
WGUS73 KICT 270538
FFSICT

Flash Flood Statement
National Weather Service Wichita KS
1238 AM CDT Sat Jun 27 2026

KSC125-270548-
/O.EXP.KICT.FF.W.0012.000000T0000Z-260627T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery KS-
1238 AM CDT Sat Jun 27 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 1245 AM CDT EARLY THIS MORNING 
FOR SOUTHERN MONTGOMERY COUNTY...

The heavy rain has ended but water will be slow to recede overnight 
therefore a Flood Warning remains in effect until Saturday morning. 
Please continue to heed remaining road closures.

&&

LAT...LON 3707 9556 3705 9552 3704 9552 3701 9552
      3700 9552 3700 9553 3700 9566 3700 9570
      3700 9571 3700 9572 3700 9576 3700 9577
      3700 9579 3700 9581 3700 9586 3700 9588
      3700 9596 3705 9594 3706 9570

$$

WI

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 Wichita, KS wrote its last area forecast discussion before this flash flood warning went out at Jun 26, 6:49 PM CDT, 1 hour 46 minutes earlier. Its key messages:

  • Additional isolated to scattered thunderstorms possible this evening through early Saturday. Locally heavy rainfall and a few strong to severe thunderstorms possible. Flood watch issued for south-central and southeast KS due to very wet antecedent conditions.
  • Pattern change anticipated to start this weekend and last through most of next week. This will bring much warmer/humid weather, mostly dry conditions, and gusty south winds.
Area forecast discussion, Jun 26, 6:49 PM CDT, 1 hour 46 minutes before
Area Forecast Discussion
National Weather Service Wichita KS
649 PM CDT Fri Jun 26 2026

...Updated Aviation Discussion...

.KEY MESSAGES...

- Additional isolated to scattered thunderstorms possible this
  evening through early Saturday. Locally heavy rainfall and a
  few strong to severe thunderstorms possible. Flood watch
  issued for south-central and southeast KS due to very wet
  antecedent conditions.

- Pattern change anticipated to start this weekend and last
  through most of next week. This will bring much warmer/humid
  weather, mostly dry conditions, and gusty south winds.

&&

.DISCUSSION...
Issued at 132 PM CDT Fri Jun 26 2026

THUNDERSTORM CHANCES:

THIS EVENING--EARLY SATURDAY...A remnant old frontal zone will begin
lifting north across the area this evening and tonight. Modest warm
advection and moisture transport in concert with a weak mid-level
disturbance approaching from the west should support a gradual
uptick in isolated to scattered thunderstorm chances this evening
and persisting early to mid-morning Saturday. Another possible area
of thunderstorms may move east off the High Plains later tonight,
augmenting these storm chances. Latest data would support the best
chances for thunderstorms mainly over south-central and southeast
KS, generally south of Highway 56.

A favorable combination of deep layer shear and elevated instability
may favor a handful of strong to severe storms, capable of quarter
size hail and perhaps 60 mph winds.

Of greater concern is the potential for additional heavy
rainfall. While we are not expecting widespread/numerous
thunderstorms (not everyone will see a thunderstorm), the
isolated to scattered nature of the thunderstorms could produce
localized pockets of heavy rainfall. Given the very wet soils
from recent widespread heavy rainfall, any additional rainfall
will only aggravate or re-aggravate recent and ongoing flooding
concerns. Consequently, we will issue a broad-brushed flood
watch this evening into early Saturday for all of south-central
and southeast KS.

SATURDAY AFTERNOON THROUGH NEXT WEEK...Building upper ridging will
support a pattern change, with mostly dry weather prevailing
Saturday afternoon through much of next week across central and
eastern KS.

TEMPERATURES/WIND:

A building upper ridge will support a pattern change, with
increasing heat/humidity Saturday through next week. Given the
progged dewpoints and low-level thickness values, thinking a
prolonged period of 100-105+ degree heat indices are likely. We will
be monitoring for any possible heat advisories or excessive heat
warnings. Additionally, persistent lee troughing will support a
prolonged period of breezy/gusty south winds Saturday through next
week.

&&

.AVIATION /00Z TAFS THROUGH 00Z SUNDAY/...
Issued at 638 PM CDT Fri Jun 26 2026

LOW CLOUDS: With diurnal cooling and moisture advection
overnight, expect sub-2000 ft AGL MVFR to possibly even IFR
ceilings to fill back in later tonight and persist into Saturday
morning.

THUNDERSTORMS: Evening scattered thunderstorms are expected
over far southern-southeast KS and northern Oklahoma, with this
activity likely remaining well south of ICT and just south of
CNU. Later this evening and overnight, we are expecting a
gradual uptick in isolated to scattered thunderstorms further
west-northwest across portions of central, southern, and
eastern KS, as 850-700 warm advection and moisture transport
commences. Included PROB30 groups for most TAF sites to account
for this threat into early Saturday.

&&

.ICT WATCHES/WARNINGS/ADVISORIES...
Flood Watch through Saturday morning for KSZ067>072-082-083-
091>096-098>100.

&&

DISCUSSION...ADK
AVIATION...ADK
Hazardous weather outlook, Jun 26, 5:48 PM CDT, 2 hours 47 minutes before
Hazardous Weather Outlook
National Weather Service Wichita KS
548 PM CDT Fri Jun 26 2026

KSZ032-033-047>053-067>072-082-083-091>096-098>100-272300-
Russell-Lincoln-Barton-Ellsworth-Saline-Rice-McPherson-Marion-Chase-
Reno-Harvey-Butler-Greenwood-Woodson-Allen-Kingman-Sedgwick-Harper-
Sumner-Cowley-Elk-Wilson-Neosho-Chautauqua-Montgomery-Labette-
548 PM CDT Fri Jun 26 2026

This hazardous weather outlook is for portions of central Kansas,
east central Kansas, south central Kansas and southeast Kansas.

.DAY ONE...Tonight

Additional isolated to scattered thunderstorms are expected to
impact far southern and southeast Kansas near the Oklahoma border
this evening. The strongest activity will be capable of quarter
size hail, 60 mph winds, and locally heavy rain.

Later this evening and overnight, additional isolated to scattered
thunderstorm development is expected over portions of mainly south-
central and southeast Kansas. The primary risk with this activity
will be localized pockets of heavy rainfall. Even though we are not
expecting widespread heavy rainfall, any additional rainfall will
only aggravate ongoing flooding concerns across the region.
Additionally, hail up to quarter size may be possible with this
activity as well.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A few lingering showers and thunderstorms are possible over mainly
eastern Kansas Saturday morning. Severe weather is not expected.

Much warmer temperatures and high humidity will support heat
indices between 100 to 105 degrees each afternoon Saturday through
Thursday.

.SPOTTER INFORMATION STATEMENT...

Any reports of severe weather or flooding would be greatly
appreciated.

&&

For a graphical version of this information, see our webpage at:
https://www.weather.gov/erh/ghwo?wfo=ict

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 8:15 PM CDTAreal Flood WarningICTChautauqua, Labette, Montgomery21 hr
Jun 26, 10:54 PM CDTAreal Flood WarningICTChautauqua, Montgomery11 hr
Jun 27, 1:30 AM CDTHeat AdvisoryICTAllen, Barton, Butler, Chase, Chautauqua, Cowley and 20 more6 days
Jun 27, 8:12 AM CDTAreal Flood WarningICTReno3 hr
Jun 27, 8:38 AM CDTAreal Flood WarningICTKingman49 hr
Jun 27, 4:46 PM CDTAreal Flood WarningICTMontgomery18 hr

Nearby

Flash Flood Warnings in Kansas, 2026Every 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.