860  
WGUS65 KRIW 041749  
FFARIW  
 
FLOOD WATCH  
NATIONAL WEATHER SERVICE RIVERTON WY  
1149 AM MDT FRI AUG 4 2023  
 
WYZ001>007-012-013-020-022-050500-  
/O.CON.KRIW.FA.A.0004.000000T0000Z-230805T0500Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS-NORTH  
BIG HORN BASIN-SOUTHWEST BIG HORN BASIN-SOUTHEAST BIG HORN BASIN-OWL  
CREEK AND BRIDGER MOUNTAINS-TETON AND GROS VENTRE MOUNTAINS-JACKSON  
HOLE-NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-  
INCLUDING THE CITIES OF LAKE, GREYBULL, CODY, THERMOPOLIS, OLD  
FAITHFUL, LOVELL, WORLAND, MAMMOTH, JACKSON, POWELL, TEN SLEEP,  
BASIN, MEETEETSE, SHELL, CASPER, AND CLARK  
1149 AM MDT FRI AUG 4 2023  
   
..FLOOD WATCH REMAINS IN EFFECT UNTIL 11 PM MDT THIS EVENING
 
 
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE  
POSSIBLE.  
 
* WHERE...PORTIONS OF CENTRAL, NORTH-CENTRAL, AND NORTHWEST WYOMING.  
 
* WHEN...UNTIL 11 PM MDT THIS EVENING.  
 
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,  
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.  
 
* ADDITIONAL DETAILS...  
- LOCALIZED FLOODING IS POSSIBLE FROM HEAVY RAINFALL RATES OR  
CONTINUOUS OR TRAINING STORMS. RAINFALL RATES OF 1 TO 2  
INCHES PER HOUR ARE LIKELY WITH STORMS. RATES UP TO 3 INCHES  
PER HOUR ARE POSSIBLE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION  
SHOULD FLASH FLOOD WARNINGS BE ISSUED.  
 

 
 

 
 
WYZ008>011-050500-  
/O.CON.KRIW.FA.A.0004.000000T0000Z-230806T0000Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-NORTHEAST JOHNSON  
COUNTY-SOUTHEAST JOHNSON COUNTY-  
INCLUDING THE CITIES OF KAYCEE AND BUFFALO  
1149 AM MDT FRI AUG 4 2023  
   
..FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY AFTERNOON
 
 
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE  
POSSIBLE.  
 
* WHERE...A PORTION OF NORTH-CENTRAL WYOMING, INCLUDING THE BIGHORN  
MOUNTAINS AND THE LOWER ELEVATIONS OF JOHNSON COUNTY.  
 
* WHEN...THROUGH LATE SATURDAY AFTERNOON.  
 
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,  
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.  
 
* ADDITIONAL DETAILS...  
- LOCALIZED FLOODING IS POSSIBLE FROM HEAVY RAINFALL RATES OR  
CONTINUOUS OR TRAINING STORMS. RAINFALL RATES 1 TO 2 INCHES  
PER HOUR ARE POSSIBLE, WITH OCCASIONAL RATES TO 3 INCHES PER  
HOUR. HIGHEST RAINFALL TOTALS ARE EXPECTED FRIDAY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION  
SHOULD FLASH FLOOD WARNINGS BE ISSUED.  
 

 
 

 
 
MCDONALD  
 
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