Flash Flood Warning 6, NWS Wichita, KS

739 
WGUS73 KICT 190244
FFSICT

Flash Flood Statement
National Weather Service Wichita KS
944 PM CDT Thu Jun 18 2026

KSC191-190545-
/O.CON.KICT.FF.W.0006.000000T0000Z-260619T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sumner KS-
944 PM CDT Thu Jun 18 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FRIDAY 
FOR EAST CENTRAL SUMNER COUNTY...

At 944 PM CDT, emergency management reported thunderstorms producing 
heavy rain across the warned area. Between 3 and 5 inches of rain 
have fallen. Additional rainfall amounts up to 1 inch are possible 
in the warned area. Flash flooding is already occurring.

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

SOURCE...Emergency management reported.

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

Some locations that will experience flash flooding include...
  Wellington, Oxford and Wellington Airport.

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 3723 9755 3735 9749 3728 9715 3713 9715

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

$$

Cuellar

179 
WGUS73 KICT 190532
FFSICT

Flash Flood Statement
National Weather Service Wichita KS
1232 AM CDT Fri Jun 19 2026

KSC191-190542-
/O.CAN.KICT.FF.W.0006.000000T0000Z-260619T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sumner KS-
1232 AM CDT Fri Jun 19 2026

...FLASH FLOOD WARNING IS CANCELLED FOR EAST CENTRAL SUMNER COUNTY...

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

&&

LAT...LON 3723 9755 3735 9749 3728 9715 3713 9715

$$

Kaufman

Area Forecast Discussion
National Weather Service Wichita KS
635 PM CDT Thu Jun 18 2026

.KEY MESSAGES...

...Updated Aviation Discussion...

- Showers and storms will linger across southern Kansas into
  this evening. Isolated severe storms are possible with the
  strongest activity with hail and heavy rainfall as the main
  hazards.

- Isolated to widely scattered storms will be possible late
  Friday afternoon into Friday night with more widespread
  activity expected on Saturday night.

- Severe storms likely on Saturday night with damaging winds,
  heavy rainfall, and possible flooding as the primary hazards.

&&

.DISCUSSION...
Issued at 325 PM CDT Thu Jun 18 2026

Broad upper troughing is currently stretching across the Northern
Plains into the Great Lakes and the Ohio Valley with a shortwave
trough moving into the northeastern CONUS. Lee troughing is
strengthening over the high Plains with high pressure moving into
eastern Nebraska and eastern Kansas. In our area, zonal flow aloft
persists with elevated storms ongoing mainly south of Highway 50
from 700mb WAA. PWATs are between 1.4 to 1.6 inches across this area
which is around/slightly above the 75th percentile for this time of
year, leading to efficient rainfall with any storm. This activity is
likely to fester into the evening as it shifts south into Oklahoma.
MUCAPE values are between 1500-2000 J/kg with 45-50 kts of effective
shear making the primary hazards hail and heavy rainfall given how
elevated this storms are and DCAPE values under 250 J/kg. As we move
into tonight and Friday, drier conditions look to prevail as high
pressure continues to expand across the Central Plains and Middle
Mississippi Valley. High temperatures will rise into the low to mid
80s on Friday afternoon. Friday afternoon into Friday night, shower
and storm chances will increase mainly in central to south-central
KS as 700mb WAA increases. This activity will likely be isolated to
widely scattered with severe storms not anticipated given the lack
of instability and effective shear.

The main focus for severe weather continues to be Saturday night.
Low-level upslope moisture advection sets up in western Nebraska
into northwestern Kansas on late Saturday afternoon which will
likely result in storm initiation. A frontal boundary looks to push
into northern Kansas by early Saturday night with the bulk shear
vector oriented along the boundary leading storms to grow upscale
quickly. Model guidance suggests around 40 kts of effective shear
with up to 1400 J/kg of DCAPE. The ECMWF and NAM hint at instability
values greater than 2500 J/kg, but the GFS suggests around 1500
J/kg. The LLJ will ramp up Saturday night, aiding to storm
development and instability especially as a shortwave trough
approaches late Saturday night. There is some model discrepancy with
the trajectory of the MCS as the GFS brings it southeast through our
forecast area, whereas other guidance brings it through southern
Nebraska into central Kansas and then continues eastward towards
northern Missouri. Regardless, the main hazards with this activity
will be damaging winds, heavy rainfall, and possible flooding as
PWATs are progged to be greater than 1.8". Its possible for rain
chances to linger in southern to southeast KS as the upper shortwave
slides across the Central Plains on Sunday, though there is quite a
bit of uncertainty depending on how Saturday evolves. If a strong
MCS moves south through our area, it could push an outflow boundary
south of our area which would limit storm chances on Sunday.
Continue to stay tuned as we refine this forecast.

Continuing into next week, drier conditions are likely to prevail
for our area. An upper trough is progged to move into the Northern
Plains on Monday night which may result in rain chances clipping our
area though better chances will remain north and south of Kansas. As
we move towards mid-week, upper ridging will build into the western
CONUS then better rain chances for our area may arrive Wednesday
night as another shortwave trough slides across the region. At this
time, severe weather chances appear to be low. For temperatures,
highs are forecast to be in the low to mid 80s through much of the
work week.

&&

.AVIATION /00Z TAFS THROUGH 00Z SATURDAY/...
Issued at 623 PM CDT Thu Jun 18 2026

Shower and thunderstorm activity continues across southern
Kansas this evening, and will cause some impacts to KICT, KCNU,
and surrounding locations.

A narrow line of training thunderstorms continues to fester
across south-central Kansas, and it remains just south of KICT.
Will hold onto VCTS for KICT for the next 2-3 hours or so, but
this may need to be extended if storms continue beyond that
point.

Eventually, showers and storms should slowly sink southward into
Oklahoma during the overnight hours, and VFR conditions should
prevail after 09Z.

While not explicitly mentioned in the TAFs during this cycle,
isolated showers and storms may be possible area wide after 18Z
Friday afternoon.

&&

.ICT WATCHES/WARNINGS/ADVISORIES...
None.

&&

DISCUSSION...GC
AVIATION...JC

Hazardous Weather Outlook
National Weather Service Wichita KS
608 PM CDT Thu Jun 18 2026

KSZ032-033-047>053-067>072-082-083-091>096-098>100-192315-
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-
608 PM CDT Thu Jun 18 2026

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

.DAY ONE...Tonight

Scattered showers and thunderstorms are possible this evening,
mainly for locations along and south of Highway 50. Some of these
storms could produce dime to quarter size hail, heavy rainfall, and
localized flooding concerns.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Thunderstorms could develop over the area again late Friday
afternoon and night, however The better chances for more widespread
thunderstorms to impact the region are on Saturday night. The
potential for severe thunderstorms with damaging winds and heavy
rainfall is increasing for this Saturday night period. The
thunderstorms could linger into the morning hours on Sunday. Please
continue to watch for updates as we refine the forecast.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

&&

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

Preliminary Local Storm Report
National Weather Service Wichita KS
631 PM CDT Thu Jun 18 2026

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

0629 PM     Hail             1 W Belle Plaine        37.39N 97.29W
06/18/2026  E1.00 Inch       Sumner             KS   NWS Employee

&&

Preliminary Local Storm Report
National Weather Service Wichita KS
639 PM CDT Thu Jun 18 2026

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

0631 PM     Hail             5 WNW Udall             37.40N 97.20W
06/18/2026  E1.00 Inch       Sumner             KS   Trained Spotter

            Time estimated from radar.

&&

Preliminary Local Storm Report
National Weather Service Wichita KS
643 PM CDT Thu Jun 18 2026

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

0629 PM     Hail             1 W Belle Plaine        37.39N 97.29W
06/18/2026  M1.25 Inch       Sumner             KS   NWS Employee

            Quarter size hail with a few half dollar
            size hailstones. Time estimated from radar.

&&

Preliminary Local Storm Report
National Weather Service Wichita KS
651 PM CDT Thu Jun 18 2026

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

0631 PM     Hail             Belle Plaine            37.39N 97.28W
06/18/2026  M1.75 Inch       Sumner             KS   NWS Employee

            Many half dollar size stones on the ground
            with a few golf ball size stones observed.
            Time estimated from radar.

&&

Preliminary Local Storm Report
National Weather Service Wichita KS
801 PM CDT Thu Jun 18 2026

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

0801 PM     Flood            2 N Wellington          37.30N 97.39W
06/18/2026                   Sumner             KS   NWS Employee

            Reported several inches of water flowing
            across US-81 in a few spots in north
            Wellington.

&&

Preliminary Local Storm Report
National Weather Service Wichita KS
827 PM CDT Thu Jun 18 2026

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

0826 PM     Flood            Wellington              37.27N 97.40W
06/18/2026                   Sumner             KS   NWS Employee

            Measured 8 inches of water over intersection
            of East 10th St and North C St.

&&