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Flash Flood Warning 0018
Issued by the Cheyenne Forecast Office

Action Issued Starts Expiration
New 2026-08-14 15:16:23 2026-08-14 15:16:00 2026-08-14 18:15:00
Time Extended 2026-08-14 17:24:26 2026-08-14 19:45:00
Expired 2026-08-14 19:44:01 2026-08-14 19:45:00


Action: New
Issued At: 2026-08-14 15:16:23

714 
WGUS55 KCYS 142016
FFWCYS
NEC007-105-WYC015-021-142315-
/O.NEW.KCYS.FF.W.0018.260814T2016Z-260814T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Cheyenne WY
216 PM MDT Fri Aug 14 2026

The National Weather Service in Cheyenne has issued a

* Flash Flood Warning for...
  Banner County in the panhandle of Nebraska...
  Northwestern Kimball County in the panhandle of Nebraska...
  Southeastern Goshen County in southeastern Wyoming...
  East Central Laramie County in southeastern Wyoming...

* Until 515 PM MDT.

* At 216 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to 2.5 inches of rain have 
  fallen. The expected rainfall rate is 1.5 to 2 inches in 1 hour. 
  Additional rainfall amounts of 1.5 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...
  Albin and Harrisburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, dont drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4170 10395 4170 10391 4170 10389 4170 10381
      4170 10378 4170 10375 4170 10372 4159 10359
      4137 10363 4136 10382 4133 10410 4150 10422
      4168 10403

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1.5-2 INCHES IN 1 HOUR

$$

Brauer


Action: Time Extended
Issued At: 2026-08-14 17:24:26

750 
WGUS55 KCYS 142224
FFWCYS
NEC007-105-WYC015-021-150045-
/O.EXT.KCYS.FF.W.0018.000000T0000Z-260815T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Cheyenne WY
424 PM MDT Fri Aug 14 2026

The National Weather Service in Cheyenne has extended the

* Flash Flood Warning for...
  Banner County in the panhandle of Nebraska...
  Northwestern Kimball County in the panhandle of Nebraska...
  Southeastern Goshen County in southeastern Wyoming...
  East Central Laramie County in southeastern Wyoming...

* Until 645 PM MDT.

* At 424 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 3.5 and 4 inches of 
  rain have fallen. The expected rainfall rate is 1.5 to 2 inches in 
  1 hour. Additional rainfall amounts of 1 to 1.5 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...
  Albin and Harrisburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, dont drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4170 10395 4170 10391 4170 10389 4170 10381
      4170 10378 4170 10375 4170 10372 4159 10359
      4137 10363 4136 10382 4133 10410 4150 10422
      4168 10403

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1.5-2 INCHES IN 1 HOUR

$$

Brauer


Action: Expired
Issued At: 2026-08-14 19:44:01

967 
WGUS75 KCYS 150043
FFSCYS

Flash Flood Statement
National Weather Service Cheyenne WY
643 PM MDT Fri Aug 14 2026

NEC007-105-WYC015-021-150053-
/O.EXP.KCYS.FF.W.0018.000000T0000Z-260815T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Banner NE-Kimball NE-Goshen WY-Laramie WY-
643 PM MDT Fri Aug 14 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 645 PM MDT THIS EVENING FOR 
BANNER, NORTHWESTERN KIMBALL, SOUTHEASTERN GOSHEN AND EAST CENTRAL 
LARAMIE 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 1000 PM MDT for portions of 
panhandle Nebraska and southeast Wyoming.

&&

LAT...LON 4170 10395 4170 10391 4170 10389 4170 10381
      4170 10378 4170 10375 4170 10372 4159 10359
      4137 10363 4136 10382 4133 10410 4150 10422
      4168 10403

$$

Brauer



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