Flash Flood Warning 3, NWS Topeka, KS

532 
WGUS73 KTOP 270848
FFSTOP

Flash Flood Statement
National Weather Service Topeka KS
348 AM CDT Mon Apr 27 2026

KSC041-061-127-149-161-197-271130-
/O.CON.KTOP.FF.W.0003.000000T0000Z-260427T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dickinson KS-Geary KS-Morris KS-Pottawatomie KS-Riley KS-
Wabaunsee KS-
348 AM CDT Mon Apr 27 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM CDT THIS 
MORNING FOR SOUTHEASTERN DICKINSON, GEARY, NORTHERN MORRIS, WESTERN 
WABAUNSEE, SOUTHEASTERN POTTAWATOMIE AND SOUTHEASTERN RILEY 
COUNTIES...

At 347 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2.5 and 6 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...
  Junction City, Wamego, Alma, St. Marys, Grandview Plaza, St. 
  George, White City, Alta Vista, Dwight, McFarland, Paxico, Belvue, 
  Emmett, Louisville, Woodbine, Parkerville, Latimer and Volland.

This includes Interstate 70 between mile markers 305 and 335.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3871 9710 3891 9702 3907 9670 3917 9651
      3938 9607 3920 9604 3918 9604 3917 9604
      3914 9606 3879 9637 3873 9693

FLASH FLOOD...RADAR INDICATED

$$

063 
WGUS53 KTOP 271046 RRA
FFWTOP
KSC041-061-127-149-161-197-271230-
/O.EXT.KTOP.FF.W.0003.000000T0000Z-260427T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Topeka KS
546 AM CDT Mon Apr 27 2026

The National Weather Service in Topeka has extended the

* Flash Flood Warning for...
  Southeastern Dickinson County in central Kansas...
  Geary County in east central Kansas...
  Northern Morris County in east central Kansas...
  Western Wabaunsee County in east central Kansas...
  Southeastern Pottawatomie County in northeastern Kansas...
  Southeastern Riley County in northeastern Kansas...

* Until 730 AM CDT.

* At 545 AM CDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  3 and 6 inches of rain have fallen. Flash flooding is already 
  occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  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...
  Junction City, Wamego, Alma, St. Marys, Grandview Plaza, St. 
  George, White City, Alta Vista, Dwight, McFarland, Paxico, Belvue, 
  Emmett, Louisville, Woodbine, Parkerville, Latimer and Volland.

This includes Interstate 70 between mile markers 305 and 335.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3871 9710 3891 9702 3907 9670 3917 9651
      3938 9607 3920 9604 3918 9604 3917 9604
      3914 9606 3879 9637 3873 9693

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

466 
WGUS73 KTOP 271138 RRB
FFSTOP

Flash Flood Statement
National Weather Service Topeka KS
638 AM CDT Mon Apr 27 2026

KSC041-061-127-149-161-197-271148-
/O.CAN.KTOP.FF.W.0003.000000T0000Z-260427T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dickinson KS-Geary KS-Morris KS-Pottawatomie KS-Riley KS-
Wabaunsee KS-
638 AM CDT Mon Apr 27 2026

...FLASH FLOOD WARNING FOR SOUTHEASTERN DICKINSON, GEARY, NORTHERN 
MORRIS, WESTERN WABAUNSEE, SOUTHEASTERN POTTAWATOMIE AND 
SOUTHEASTERN RILEY COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...

&&

LAT...LON 3871 9710 3891 9702 3907 9670 3917 9651
      3938 9607 3920 9604 3918 9604 3917 9604
      3914 9606 3879 9637 3873 9693

$$

Area Forecast Discussion
National Weather Service Topeka KS
159 AM CDT Mon Apr 27 2026

.KEY MESSAGES...

- Severe storms continue west to east through the overnight hours
  into early Monday morning with large hail up to 2 inches in
  diameter the main threat with some stronger gusty outflows
  possible as well. Tornado threat is low, but not zero.

- Possible redevelop of storms for far eastern portions of the state
  early Monday afternoon along the cold front but most of the
  activity will shift east.

- Coolest day of the week Monday afternoon with a warming trend
  through the  rest of the week but still on the cooler than average
  side for this time of year.

- Next chance for precipitation comes Thursday night into Friday for
  northeastern portions of the viewing area.

&&

.DISCUSSION...
Issued at 200 AM CDT Mon Apr 27 2026

Upper level low evident on IR pushing east across southern Canada
with a positively oriented L/W trough extending southwestward
through the Desert Southwest. WV shows the main finger of the PFJ
around the base of the aforementioned trough extending through the
High/Great Plains with southwest flow for the CWA. Associated cold
front that has sparked the ongoing severe thunderstorms is along this
line from north central to southwest KS with ample difluence aloft
ahead of all of this. This has given ample exhaust to the lifting and
instability that will extend through the overnight hours. Current
severe watch during this time as storm activity has increased the
past couple of hours west to east giving way to ample elevated
convection with the associated warm front lifting north along this
west to east boundary evident on radar. Predominant threats has been
hail up to 1 to 2 inches in diameter with gusty outflows possible
(30-40%) of up to 40 to 50 mph. Steep lapse rates continue through
the path of the shortwave as evident on some 00Z soundings, in
particular DDC. Tornado threat has diminished, but not totally out of
the question due to the earlier convection that tends to eat away at
the instability, especially into the overnight hours. With the west
to east entrainment, storm coverage and severity should be on the
decline into the early Monday morning hours but possible flooding
could come to fruition by daybreak that will keep an eye on in the
coming hours.

Otherwise, storms will exit east with the associated cold front but
models show it stall further east that will spark another round of
convection early Monday afternoon. However, the thermodynamics of
the system will be mainly on the "cooler" side that will keep severe
storm development further into MO. If any severe storms do develop
for far eastern portions of the CWA, they will quickly race out by
mid afternoon. Beyond that, expect Monday afternoon to be the coolest
day of the week with a warming/mainly dry trend but still on the
cooler than average side for the end of April through the remainder
of the work week and into the weekend as the aforementioned trough
pushes north and northeastward. Westerly zonal flow mostly during the
time with a ripple extending south from the previous upper level low
that could extend down to northeastern portions of the CWA Thursday
night into Friday. Impacts look to be low at this point but something
to keep an eye on in the coming days.

&&

.AVIATION /06Z TAFS THROUGH 06Z TUESDAY/...
Issued at 938 PM CDT Sun Apr 26 2026

Numerous rain showers and thunderstorms will pass through the area
from the start of the TAF period until about 13Z. Large hail and
damaging wind will be possible (40%) with all storms. PROB30 groups
have been changed to TEMPO groups as the chance of impacts at
terminals is over 80%. Conditions will drop to IFR as storms impact
terminals, with prevailing MVFR conditions through at least Monday
morning. Low clouds (BKN030) will hang around KTOP and KFOE through
Monday afternoon, with improvement by 01Z Tuesday. Wind will remain
from the east tonight with a wind shift behind the front by 14-15Z.
Wind will be breezy behind the front averaging 10-15 knots, with
gusts of 15 to 20 knots through Monday afternoon. Wind will then
become more northerly Monday evening.

&&

.TOP WATCHES/WARNINGS/ADVISORIES...
Flood Watch until 1 PM CDT this afternoon for KSZ010-KSZ011-KSZ012-
KSZ023-KSZ024-KSZ026-KSZ039-KSZ040.

&&

DISCUSSION...Lowe
AVIATION...Blair

Hazardous Weather Outlook
National Weather Service Topeka KS
512 PM CDT Sun Apr 26 2026

KSZ010>012-023-024-026-039-040-272215-
Marshall-Nemaha-Brown-Pottawatomie-Jackson-Jefferson-Shawnee-Douglas-
512 PM CDT Sun Apr 26 2026

...FLOOD WATCH IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH MONDAY
AFTERNOON...

This Hazardous Weather Outlook is for east central Kansas and
northeast Kansas.

.DAY ONE...Tonight.

Flood watch through 12 PM Monday. Thunderstorms will redevelop and
some will be severe with the primary hazard being large hail,
isolated damaging wind gusts, and heavy rainfall.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Flood watch through 12 PM Monday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

&&

.SPOTTER MESSAGE

Weather spotters are encouraged to relay reports of hail, damaging
wind, tornadoes and flooding.

&&

More detailed information can be found at:
www.weather.gov/media/top/DssPacket.pdf

KSZ008-009-020>022-034>038-054>056-058-059-272215-
Republic-Washington-Cloud-Clay-Riley-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Lyon-Osage-Franklin-Coffey-Anderson-
512 PM CDT Sun Apr 26 2026

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

.DAY ONE...Tonight.

Thunderstorms will redevelop late Tonight. Some of the storms will
be severe with the primary hazard being large hail and isolated
damaging wind gusts.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

The probability for widespread hazardous weather is low.

.SPOTTER MESSAGE

Weather spotters are encouraged to relay reports of hail, damaging
wind, tornadoes and flooding.

&&

More detailed information can be found at:
www.weather.gov/media/top/DssPacket.pdf

Preliminary Local Storm Report
National Weather Service Topeka KS
1228 AM CDT Mon Apr 27 2026

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

1210 AM     Hail             3 W Herington           38.67N 97.00W
04/27/2026  E1.00 Inch       Dickinson          KS   Trained Spotter

            Also estimated wind gusts of 45 to 55 mph.

&&

Preliminary Local Storm Report
National Weather Service Topeka KS
1249 AM CDT Mon Apr 27 2026

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

1246 AM     Hail             Solomon                 38.92N 97.37W
04/27/2026  E1.00 Inch       Dickinson          KS   Fire Dept/Rescue

&&

Preliminary Local Storm Report
National Weather Service Topeka KS
1250 AM CDT Mon Apr 27 2026

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

1229 AM     Hail             3 SW Oneida             39.84N 95.99W
04/27/2026  E0.75 Inch       Nemaha             KS   Public

            Report from mPING: Dime (0.75 in.).

&&

Preliminary Local Storm Report
National Weather Service Topeka KS
130 AM CDT Mon Apr 27 2026

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

0128 AM     Hail             2 WSW Junction City     39.02N 96.86W
04/27/2026  E1.00 Inch       Geary              KS   Emergency Mngr

&&

Preliminary Local Storm Report
National Weather Service Topeka KS
148 AM CDT Mon Apr 27 2026

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

0137 AM     Hail             Alta Vista              38.87N 96.49W
04/27/2026  E1.00 Inch       Wabaunsee          KS   CO-OP Observer

&&