312  
WWUS75 KBYZ 090751  
NPWBYZ  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE BILLINGS MT  
151 AM MDT WED JUL 9 2025  
 
MTZ036-037-058-138-139-169-WYZ199-100300-  
/O.EXA.KBYZ.HT.Y.0002.250709T1500Z-250710T0300Z/  
POWDER RIVER-CARTER-SOUTHERN ROSEBUD-SOUTHERN BIG HORN-  
SOUTHEASTERN CARBON-BIGHORN CANYON-SHERIDAN FOOTHILLS-  
INCLUDING THE LOCATIONS OF BROADUS, EKALAKA, SHERIDAN, LAME DEER,  
FORT SMITH, BRIDGER, PRYOR, AND LODGE GRASS  
151 AM MDT WED JUL 9 2025  
 
...HEAT ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT THIS  
EVENING...  
 
* WHAT...TEMPERATURES UP TO 101 EXPECTED.  
 
* WHERE...PORTIONS OF SOUTH CENTRAL AND SOUTHEAST MONTANA AND NORTH  
CENTRAL WYOMING.  
 
* WHEN...FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING.  
 
* IMPACTS...HOT TEMPERATURES MAY CAUSE HEAT ILLNESSES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF  
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. WEAR LIGHTWEIGHT  
AND LOOSE FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO  
EARLY MORNING OR EVENING.  
 
WHEN WORKING OUTDOORS, SCHEDULE FREQUENT REST BREAKS IN SHADED OR  
AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT SHOULD BE  
MOVED TO A COOL AND SHADED LOCATION. TAKE ACTION WHEN YOU SEE  
SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. HEAT STROKE IS AN  
EMERGENCY! CALL 9 1 1.  
 

 
 

 
 
MTZ029>033-057-173-235-100300-  
/O.CON.KBYZ.HT.Y.0002.250709T1500Z-250710T0300Z/  
MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER-FALLON-NORTHERN BIG  
HORN-NORTHEASTERN YELLOWSTONE-SOUTHWESTERN YELLOWSTONE-  
INCLUDING THE LOCATIONS OF HARDIN, MILES CITY, BAKER, FORSYTH,  
CUSTER, HYSHAM, BILLINGS, COLSTRIP, CROW AGENCY, ROUNDUP, AND  
POMPEYS PILLAR  
151 AM MDT WED JUL 9 2025  
 
...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM  
MDT THIS EVENING...  
 
* WHAT...TEMPERATURES UP TO 102 EXPECTED.  
 
* WHERE...PORTIONS OF CENTRAL, SOUTH CENTRAL, AND SOUTHEAST MONTANA.  
 
* WHEN...FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING.  
 
* IMPACTS...HOT TEMPERATURES MAY CAUSE HEAT ILLNESSES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF  
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. WEAR LIGHTWEIGHT  
AND LOOSE FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO  
EARLY MORNING OR EVENING.  
 
WHEN WORKING OUTDOORS, SCHEDULE FREQUENT REST BREAKS IN SHADED OR  
AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT SHOULD BE  
MOVED TO A COOL AND SHADED LOCATION. TAKE ACTION WHEN YOU SEE  
SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. HEAT STROKE IS AN  
EMERGENCY! CALL 9 1 1.  
 

 
 

 
 
ADDITIONAL GRAPHICS FOR THIS HAZARD CAN BE FOUND AT  
HTTP://WWW.WEATHER.GOV/BILLINGS  
 
CHAMBERS  
 
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