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Home Return to list Areal Flood Advisory 0021 Issued by the Cheyenne Forecast Office
Action: New Issued At: 2026-09-23 15:33:23
572
WGUS85 KCYS 232033
FLSCYS
Flood Advisory
National Weather Service Cheyenne WY
233 PM MDT Wed Sep 23 2026
WYC021-232230-
/O.NEW.KCYS.FA.Y.0021.260923T2033Z-260923T2230Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Laramie WY-
233 PM MDT Wed Sep 23 2026
...FLOOD ADVISORY IN EFFECT UNTIL 430 PM MDT THIS AFTERNOON...
* WHAT...Small stream flooding caused by excessive rainfall is
expected.
* WHERE...East Central Laramie County in southeastern Wyoming...
* WHEN...Until 430 PM MDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Dangerous flows over low-water crossings.
* ADDITIONAL DETAILS...
- At 233 PM MDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause small stream flooding. Between 1.5
and 2 inches of rain have fallen.
- Additional rainfall amounts of 0.5 to 1 inch are expected over
the area. This additional rain will result in minor flooding.
- Some locations that will experience flooding include...
Burns and Hillsdale.
- http://www.weather.gov/safety/flood
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 4141 10448 4139 10462 4126 10465 4115 10450
4115 10433 4135 10423 4137 10424
$$
NB
Action: Time Extended Issued At: 2026-09-23 17:29:57
785
WGUS85 KCYS 232229
FLSCYS
Flood Advisory
National Weather Service Cheyenne WY
429 PM MDT Wed Sep 23 2026
.Another storm with heavy rainfall potential is moving into the area
from the west.
WYC021-232330-
/O.EXT.KCYS.FA.Y.0021.000000T0000Z-260923T2330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Laramie WY-
429 PM MDT Wed Sep 23 2026
...FLOOD ADVISORY NOW IN EFFECT UNTIL 530 PM MDT THIS AFTERNOON...
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...Southwestern Laramie County in southeastern Wyoming...
* WHEN...Until 530 PM MDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Overflowing poor drainage areas.
* ADDITIONAL DETAILS...
- At 428 PM MDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause small stream flooding. Between 1.5
and 2 inches of rain have fallen.
- Additional rainfall amounts of 0.5 to 1 inch are expected over
the area. This additional rain will result in minor flooding.
- Some locations that will experience flooding include...
Burns and Hillsdale.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, dont drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4141 10448 4139 10462 4126 10465 4115 10450
4115 10433 4135 10423 4137 10424
$$
RV
Action: Expired Issued At: 2026-09-23 18:29:29
456
WGUS85 KCYS 232328
FLSCYS
Flood Advisory
National Weather Service Cheyenne WY
528 PM MDT Wed Sep 23 2026
WYC021-232338-
/O.EXP.KCYS.FA.Y.0021.000000T0000Z-260923T2330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Laramie WY-
528 PM MDT Wed Sep 23 2026
...FLOOD ADVISORY WILL EXPIRE AT 530 PM MDT THIS AFTERNOON...
Flooding caused by excessive rainfall is expected.
&&
LAT...LON 4141 10448 4139 10462 4126 10465 4115 10450
4115 10433 4135 10423 4137 10424
$$
RV
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