Weather Alerts For New Plymouth, ID

URGENT - WEATHER MESSAGE National Weather Service Boise ID 203 PM MST Wed Feb 4 2026 Lower Treasure Valley-Upper Treasure Valley-Western Magic Valley- Upper Weiser River-Baker County-Malheur County-Oregon Lower Treasure Valley- Including the cities of Nampa, Goodrich, Council, Twin Falls, Caldwell, Mesa, Nyssa, Baker, Indian Valley, Boise, Fruitvale, Malheur City, Ontario, Cambridge, and Glendale 203 PM MST Wed Feb 4 2026 /103 PM PST Wed Feb 4 2026/ ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST /4 AM PST/ MONDAY... * WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Portions of south central and southwest Idaho and northeast and southeast Oregon. * WHEN...Until 5 AM MST /4 AM PST/ Monday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. &&