741
WWUS75 KBYZ 181937
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
137 PM MDT Mon Aug 18 2025

MTZ029>033-036-037-057-058-138-139-169-170-173-235-WYZ199-191945-
/O.NEW.KBYZ.HT.Y.0003.250819T1500Z-250821T0300Z/
Musselshell-Treasure-Northern Rosebud-Custer-Fallon-Powder River-
Carter-Northern Big Horn-Southern Rosebud-Southern Big Horn-
Southeastern Carbon-Bighorn Canyon-Northern Carbon-Northeastern
Yellowstone-Southwestern Yellowstone-Sheridan Foothills-
Including the locations of Colstrip, Fromberg, Forsyth, Pompeys
Pillar, Sheridan, Lodge Grass, Fort Smith, Broadus, Hysham,
Billings, Lame Deer, Baker, Miles City, Pryor, Joliet, Ekalaka,
Crow Agency, Custer, Hardin, Roundup, and Bridger
137 PM MDT Mon Aug 18 2025

...HEAT ADVISORY IN EFFECT FROM 9 AM TUESDAY TO 9 PM MDT WEDNESDAY...

* WHAT...Temperatures from 95 to 105 expected each afternoon.

* WHERE...Portions of central, south central, and southeast Montana
  and north central Wyoming.

* WHEN...From 9 AM Tuesday to 9 PM MDT Wednesday.

* 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.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

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.



&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Chambers