200
WWUS75 KMSO 121647
NPWMSO
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1047 AM MDT SUN JUL 12 2026
IDZ006-008-121800-
/O.CAN.KMSO.HT.Y.0001.000000T0000Z-260713T0300Z/
SOUTHERN CLEARWATER MOUNTAINS-LOWER HELLS CANYON/SALMON RIVER
REGION-
947 AM PDT SUN JUL 12 2026
..HEAT ADVISORY IS CANCELLED
CLOUDCOVER WILL LIMIT HEATING TODAY, KEEPING TEMPERATURES FROM
REACHING TRIPLE DIGITS. TEMPERATURES WILL REMAIN AROUND SEASONAL
NORMALS.
IDZ009-010-130300-
/O.CON.KMSO.HT.Y.0001.000000T0000Z-260713T0300Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
1047 AM MDT SUN JUL 12 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING BELOW
3000 FEET...
* WHAT...MAJOR RISK OF HEAT EFFECTS BELOW 3000 FEET.
* WHERE...EASTERN LEMHI COUNTY AND WESTERN LEMHI COUNTY.
* WHEN...UNTIL 9 PM MDT THIS EVENING.
* IMPACTS...THIS LEVEL OF HEAT AFFECTS ANYONE WITHOUT EFFECTIVE
COOLING AND/OR ADEQUATE HYDRATION. IMPACTS LIKELY IN SOME HEALTH
SYSTEMS, HEAT-SENSITIVE INDUSTRIES AND INFRASTRUCTURE.
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.
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.
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