034  
WWUS75 KMSO 100916  
NPWMSO  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MISSOULA MT  
316 AM MDT FRI AUG 10 2018  
 
IDZ005-007-008-110300-  
/O.CON.KMSO.EH.W.0001.000000T0000Z-180811T0300Z/  
NORTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-  
LOWER HELLS CANYON/SALMON RIVER REGION-  
216 AM PDT FRI AUG 10 2018  
 
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS  
EVENING...  
 
THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED AN EXCESSIVE  
HEAT WARNING...WHICH IS IN EFFECT UNTIL 8 PM PDT FRIDAY.  
 
* TEMPERATURES: TEMPERATURES TODAY WILL BE AS HOT, IF NOT HOTTER  
COMPARED TO THURSDAY. 105 TO 115 IN VALLEYS AND UPPER 90S IN THE  
HIGHER ELEVATIONS ARE EXPECTED IN THE WARNED AREAS. IF SMOKE  
BECOMES DENSE, VALLEY HIGH TEMPERATURES WILL BE CLOSER TO 100.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY  
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST  
BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME  
BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT  
STROKE IS AN EMERGENCY, CALL 9 1 1.  
 
YOUNG CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN  
VEHICLES UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING  
WARM OR HOT WEATHER WHEN CAR INTERIORS CAN REACH LETHAL  
TEMPERATURES IN A MATTER OF MINUTES.  
 

 
 

 
 
MTZ001>005-043-110300-  
/O.CON.KMSO.HT.Y.0002.000000T0000Z-180811T0300Z/  
KOOTENAI/CABINET REGION-WEST GLACIER REGION-  
FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION-  
MISSOULA/BITTERROOT VALLEYS-POTOMAC/SEELEY LAKE REGION-  
316 AM MDT FRI AUG 10 2018  
   
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
 
 
* TEMPERATURES: 100 TO 106 IN THE LOWER VALLEYS, 95 TO 100 IN  
THE MOUNTAIN VALLEYS, AND 85 TO 90 IN HIGHER ELEVATIONS. IF  
SMOKE BECOMES DENSE, VALLEY HIGH TEMPERATURES WILL BE CLOSER  
TO THE UPPER 90S, BUT IF SMOKE REMAINS LIGHT, TEMPERATURES  
WILL APPROACH 106.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TAKE EXTRA PRECAUTIONS, IF YOU WORK OR SPEND TIME OUTSIDE. WHEN  
POSSIBLE, RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR  
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT  
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN  
POSSIBLE AND DRINK PLENTY OF WATER.  
 
YOUNG CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN  
VEHICLES UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING  
WARM OR HOT WEATHER WHEN CAR INTERIORS CAN REACH LETHAL  
TEMPERATURES IN A MATTER OF MINUTES.  
 

 
 

 
 
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