Alert archive / Kansas / Flash Flood Watches in 2021

Flash Flood Watch 5, NWS Topeka, KS

June 24, 202115 counties in Kansas

NWS Topeka, KS issued this flash flood watch at Jun 24, 2021, 1:46 PM CDT for 15 counties in Kansas. It took effect at Jun 24, 2021, 7:00 PM CDT. It was in force for 52 hr.

The area

The counties it named.

The facts

Issued
Jun 24, 2021, 1:46 PM CDT (18:46 UTC)
In effect from
Jun 24, 2021, 7:00 PM CDT
Expired
Jun 26, 2021, 11:21 PM CDT
In force
52 hr
Issued by
NWS Topeka, KS
Flood severity
None

Counties Anderson County, KS, Brown County, KS, Coffey County, KS, Douglas County, KS, Franklin County, KS, Jackson County, KS, Jefferson County, KS, Lyon County, KS, Marshall County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Shawnee County, KS, Wabaunsee County, KS

The radar

The Topeka radar (KTWX), 33 km from the middle of the area, began a volume at 18:51 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 nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 6.8 hours before the alert went out and 18 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, Topeka, KS at 12:00Z on 2021-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2072 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 12:00Z on 2021-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 342 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
2072 J/kg
Mixed-layer CIN
-283 J/kg
Mixed-layer LCL
688 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
342 m²/s²
0-3 km storm-relative helicity
386 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

578 
WGUS63 KTOP 241846
FFATOP

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Topeka KS
146 PM CDT Thu Jun 24 2021

KSZ010>012-023-024-026-038>040-055-056-251015-
/O.NEW.KTOP.FF.A.0005.210625T0000Z-210626T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marshall-Nemaha-Brown-Pottawatomie-Jackson-Jefferson-Wabaunsee-
Shawnee-Douglas-Osage-Franklin-
Including the cities of Perry, Grantville, Overbrook, Frankfort, 
Maple Hill, Oskaloosa, Holton, Eskridge, Alta Vista, Meriden, 
Wamego, Carbondale, Osage City, Horton, St. Marys, Nortonville, 
Lawrence, Burlingame, Lyndon, Valley Falls, McFarland, Marysville, 
McLouth, Blue Rapids, Alma, Harveyville, Hiawatha, Topeka, Ottawa, 
Paxico, Seneca, and Sabetha
146 PM CDT Thu Jun 24 2021

...FLASH FLOOD WATCH IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH 
SATURDAY MORNING...

The National Weather Service in Topeka has issued a

* Flash Flood Watch for portions of east central Kansas and 
  northeast Kansas, including the following areas, in east central 
  Kansas, Douglas, Franklin, Osage, Shawnee and Wabaunsee. In 
  northeast Kansas, Brown, Jackson, Jefferson, Marshall, Nemaha and 
  Pottawatomie.

* From 7 PM CDT this evening through Saturday morning.

* Thunderstorms may lead to heavy rainfall, resulting in flash 
  flooding. 2 to 4 inches of rain with locally higher amounts are 
  possible by Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

CP
6 follow-up statements
765 
WGUS63 KTOP 250759
FFATOP

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Topeka KS
259 AM CDT Fri Jun 25 2021

KSZ058-059-252100-
/O.EXA.KTOP.FF.A.0005.000000T0000Z-210626T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coffey-Anderson-
Including the cities of Burlington, Lebo, and Garnett
259 AM CDT Fri Jun 25 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY MORNING...

The National Weather Service in Topeka has expanded the

* Flash Flood Watch to include a portion of east central Kansas, 
  including the following areas, Anderson and Coffey. 

* Through Saturday morning

* Thunderstorms may lead to heavy rainfall, resulting in flash
  flooding. 2 to 4 inches of rain with locally higher amounts are
  possible from Friday through Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

KSZ010>012-023-024-026-038>040-055-056-252100-
/O.CON.KTOP.FF.A.0005.000000T0000Z-210626T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marshall-Nemaha-Brown-Pottawatomie-Jackson-Jefferson-Wabaunsee-
Shawnee-Douglas-Osage-Franklin-
Including the cities of Marysville, Blue Rapids, Frankfort, 
Sabetha, Seneca, Hiawatha, Horton, Wamego, St. Marys, Holton, 
Valley Falls, Oskaloosa, Perry, McLouth, Grantville, Meriden, 
Nortonville, Alma, Eskridge, Maple Hill, Alta Vista, McFarland, 
Harveyville, Paxico, Topeka, Lawrence, Osage City, Carbondale, 
Lyndon, Burlingame, Overbrook, and Ottawa
259 AM CDT Fri Jun 25 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY MORNING...

The Flash Flood Watch continues for

* Portions of east central Kansas and northeast Kansas, 
  including the following areas, in east central Kansas, 
  Douglas, Franklin, Osage, Shawnee, and Wabaunsee. In northeast 
  Kansas, Brown, Jackson, Jefferson, Marshall, Nemaha, and 
  Pottawatomie. 

* Through Saturday morning

* Thunderstorms may lead to heavy rainfall, resulting in flash 
  flooding. 2 to 4 inches of rain with locally higher amounts 
  are possible by Saturday morning. 

* Heavy rainfall from previous rounds of rain has resulted in
  flooding in parts of the watch area. Additional rainfall will 
  further exacerbate flash flooding in areas already experiencing 
  flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
215 
WGUS63 KTOP 251945
FFATOP

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Topeka KS
245 PM CDT Fri Jun 25 2021

KSZ037-054-260345-
/O.EXA.KTOP.FF.A.0005.000000T0000Z-210626T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morris-Lyon-
Including the cities of Council Grove and Emporia
245 PM CDT Fri Jun 25 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY MORNING...

The National Weather Service in Topeka has expanded the

* Flash Flood Watch to include a portion of east central Kansas, 
  including the following areas, Lyon and Morris.

* Through Saturday morning.

* Thunderstorms may lead to heavy rainfall, resulting in flash 
  flooding. 2 to 4 inches of rain with locally higher amounts are 
  possible through Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

KSZ010>012-023-024-026-038>040-055-056-260345-
/O.CON.KTOP.FF.A.0005.000000T0000Z-210626T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marshall-Nemaha-Brown-Pottawatomie-Jackson-Jefferson-Wabaunsee-
Shawnee-Douglas-Osage-Franklin-
Including the cities of Perry, Grantville, Overbrook, Frankfort, 
Maple Hill, Oskaloosa, Holton, Eskridge, Alta Vista, Meriden, 
Wamego, Carbondale, Osage City, Horton, St. Marys, Nortonville, 
Lawrence, Burlingame, Lyndon, Valley Falls, McFarland, Marysville, 
McLouth, Blue Rapids, Alma, Harveyville, Hiawatha, Topeka, Ottawa, 
Paxico, Seneca, and Sabetha
245 PM CDT Fri Jun 25 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY MORNING...

The Flash Flood Watch continues for

* Portions of east central Kansas and northeast Kansas, including 
  the following areas, in east central Kansas, Douglas, Franklin, 
  Osage, Shawnee and Wabaunsee. In northeast Kansas, Brown, Jackson, 
  Jefferson, Marshall, Nemaha and Pottawatomie.

* Through Saturday morning.

* Thunderstorms may lead to heavy rainfall, resulting in flash 
  flooding. 2 to 4 inches of rain with locally higher amounts are 
  possible by Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

KSZ058-059-260345-
/O.CON.KTOP.FF.A.0005.000000T0000Z-210626T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coffey-Anderson-
Including the cities of Lebo, Burlington, and Garnett
245 PM CDT Fri Jun 25 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY MORNING...

The Flash Flood Watch continues for

* A portion of east central Kansas, including the following areas, 
  Anderson and Coffey.

* Through Saturday morning.

* Thunderstorms may lead to heavy rainfall, resulting in flash 
  flooding. 2 to 4 inches of rain with locally higher amounts are 
  possible through Saturday morning.

$$

Flanagan
084 
WGUS63 KTOP 260305
FFATOP

Flood Watch
National Weather Service Topeka KS
1005 PM CDT Fri Jun 25 2021

KSZ010>012-023-024-026-038>040-055-056-261200-
/O.CON.KTOP.FF.A.0005.000000T0000Z-210626T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marshall-Nemaha-Brown-Pottawatomie-Jackson-Jefferson-Wabaunsee-
Shawnee-Douglas-Osage-Franklin-
Including the cities of Perry, Grantville, Overbrook, Frankfort, 
Maple Hill, Oskaloosa, Holton, Eskridge, Alta Vista, Meriden, 
Wamego, Carbondale, Osage City, Horton, St. Marys, Nortonville, 
Lawrence, Burlingame, Lyndon, Valley Falls, McFarland, Marysville, 
McLouth, Blue Rapids, Alma, Harveyville, Hiawatha, Topeka, Ottawa, 
Paxico, Seneca, and Sabetha
1005 PM CDT Fri Jun 25 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT SATURDAY...

The Flash Flood Watch continues for

* Portions of east central Kansas and northeast Kansas, including 
  the following areas, in east central Kansas, Douglas, Franklin, 
  Osage, Shawnee and Wabaunsee. In northeast Kansas, Brown, Jackson, 
  Jefferson, Marshall, Nemaha and Pottawatomie.

* Until 7 AM CDT Saturday.

* Widespread heavy rain has fallen across portions of the Flash 
  Flood Watch this afternoon and evening, with additional heavy rain 
  possible overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

KSZ058-059-261200-
/O.CON.KTOP.FF.A.0005.000000T0000Z-210626T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coffey-Anderson-
Including the cities of Lebo, Burlington, and Garnett
1005 PM CDT Fri Jun 25 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT SATURDAY...

The Flash Flood Watch continues for

* A portion of east central Kansas, including the following areas, 
  Anderson and Coffey.

* Until 7 AM CDT Saturday.

* Widespread heavy rain has fallen across portions of the Flash 
  Flood Watch this afternoon and evening, with additional heavy rain 
  possible overnight.

$$

KSZ037-054-261200-
/O.CON.KTOP.FF.A.0005.000000T0000Z-210626T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morris-Lyon-
Including the cities of Council Grove and Emporia
1005 PM CDT Fri Jun 25 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT SATURDAY...

The Flash Flood Watch continues for

* A portion of east central Kansas, including the following areas, 
  Lyon and Morris.

* Until 7 AM CDT Saturday.

* Widespread heavy rain has fallen across portions of the Flash 
  Flood Watch this afternoon and evening, with additional heavy rain 
  possible overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

Reese
727 
WGUS63 KTOP 260800
FFATOP

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Topeka KS
300 AM CDT Sat Jun 26 2021

KSZ010>012-023-024-026-037>040-260900-
/O.CAN.KTOP.FF.A.0005.000000T0000Z-210626T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marshall-Nemaha-Brown-Pottawatomie-Jackson-Jefferson-Morris-
Wabaunsee-Shawnee-Douglas-
Including the cities of Perry, Grantville, Frankfort, Maple Hill, 
Oskaloosa, Holton, Eskridge, Alta Vista, Meriden, Wamego, Horton, 
St. Marys, Nortonville, Lawrence, Valley Falls, McFarland, 
Marysville, McLouth, Blue Rapids, Alma, Harveyville, Hiawatha, 
Topeka, Paxico, Seneca, Council Grove, and Sabetha
300 AM CDT Sat Jun 26 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of east central Kansas and 
northeast Kansas, including the following areas, in east central 
Kansas, Douglas, Morris, Shawnee and Wabaunsee. In northeast Kansas, 
Brown, Jackson, Jefferson, Marshall, Nemaha and Pottawatomie has 
been cancelled.

The Flood Watch is cancelled.

$$

KSZ055-056-262100-
/O.EXT.KTOP.FF.A.0005.000000T0000Z-210627T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Osage-Franklin-
Including the cities of Burlingame, Ottawa, Lyndon, Overbrook, 
Carbondale, and Osage City
300 AM CDT Sat Jun 26 2021

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch is now in effect for

* A portion of east central Kansas, including the following areas, 
  Franklin and Osage.

* Through Sunday morning.

* The Flash Flood Watch continues in areas that have recently 
  received heavy rainfall. As little as an additional inch of rain 
  could cause flash flooding to occur within the watch area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

KSZ058-059-262100-
/O.EXT.KTOP.FF.A.0005.000000T0000Z-210627T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coffey-Anderson-
Including the cities of Lebo, Burlington, and Garnett
300 AM CDT Sat Jun 26 2021

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch is now in effect for

* A portion of east central Kansas, including the following areas, 
  Anderson and Coffey.

* Through Sunday morning.

* The Flash Flood Watch continues in areas that have recently 
  received heavy rainfall. As little as an additional inch of rain 
  could cause flash flooding to occur within the watch area.

$$

KSZ054-262100-
/O.EXT.KTOP.FF.A.0005.000000T0000Z-210627T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-
Including the cities of Emporia
300 AM CDT Sat Jun 26 2021

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch is now in effect for

* A portion of east central Kansas, including the following area, 
  Lyon.

* Through Sunday morning.

* The Flash Flood Watch continues in areas that have recently 
  received heavy rainfall. As little as an additional inch of rain 
  could cause flash flooding to occur within the watch area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

Teefey
482 
WGUS63 KTOP 261948
FFATOP

Flood Watch
National Weather Service Topeka KS
248 PM CDT Sat Jun 26 2021

KSZ055-056-262100-
/O.CAN.KTOP.FF.A.0005.000000T0000Z-210627T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Osage-Franklin-
Including the cities of Burlingame, Ottawa, Lyndon, Overbrook, 
Carbondale, and Osage City
248 PM CDT Sat Jun 26 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of east central Kansas, 
including the following areas, Franklin and Osage has been cancelled.

The Flood Watch is cancelled. Flooding is no longer expected to pose 
a threat. Please continue to heed remaining road closures.

$$

KSZ058-059-271000-
/O.CON.KTOP.FF.A.0005.000000T0000Z-210627T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coffey-Anderson-
Including the cities of Lebo, Burlington, and Garnett
248 PM CDT Sat Jun 26 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* A portion of east central Kansas, including the following areas, 
  Anderson and Coffey.

* Through Sunday morning.

* The Flash Flood Watch continues in areas that have recently 
  received heavy rainfall. As little as an additional inch of rain 
  could cause flash flooding to occur within the watch area.

$$

KSZ054-271000-
/O.CON.KTOP.FF.A.0005.000000T0000Z-210627T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-
Including the cities of Emporia
248 PM CDT Sat Jun 26 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* A portion of east central Kansas, including the following area, 
  Lyon.

* Through Sunday morning.

* The Flash Flood Watch continues in areas that have recently 
  received heavy rainfall. As little as an additional inch of rain 
  could cause flash flooding to occur within the watch area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

JP
946 
WGUS63 KTOP 270421
FFATOP

Flood Watch
National Weather Service Topeka KS
1121 PM CDT Sat Jun 26 2021

KSZ054-058-059-270530-
/O.CAN.KTOP.FF.A.0005.000000T0000Z-210627T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-Coffey-Anderson-
Including the cities of Lebo, Burlington, Emporia, and Garnett
1121 PM CDT Sat Jun 26 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of east central Kansas, 
including the following areas, Anderson, Coffey and Lyon has been 
cancelled.

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

$$

Teefey

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 4:43 AM CDTSpecial Weather StatementTOPBrown32 min
Jun 24, 5:48 AM CDTSevere Thunderstorm WarningTOPJackson, Jefferson, Shawnee27 min
Jun 24, 6:42 AM CDTSevere Thunderstorm WarningTOPDouglas, Franklin18 min
Jun 24, 5:34 PM CDTSevere Thunderstorm WarningTOPMarshall26 min
Jun 24, 5:45 PM CDTTornado WarningTOPMarshall30 min
Jun 24, 6:01 PM CDTSevere Thunderstorm WarningTOPMarshall, Nemaha44 min
Jun 24, 6:07 PM CDTTornado WarningTOPMarshall23 min
Jun 24, 6:16 PM CDTTornado WarningTOPMarshall, Nemaha29 min
Jun 24, 6:26 PM CDTTornado WarningTOPMarshall, Nemaha34 min
Jun 24, 6:36 PM CDTSevere Thunderstorm WarningTOPBrown, Nemaha24 min
Jun 24, 6:46 PM CDTSevere Thunderstorm WarningTOPPottawatomie, Riley29 min
Jun 24, 6:58 PM CDTAreal Flood AdvisoryTOPBrown, Nemaha61 min

Nearby

Flash Flood Watches in Kansas, 2021Every flash flood watch in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.