643  
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, DON'T 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  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab WY Page
The Nexlab NE Page Main Text Page