Fire Weather Conditions in the Northwest U.S.; Heavy Rain in the West and South-central U.S.

Extreme heat is waning over the Pacific Northwest. Dry, gusty winds, and isolated dry thunderstorms will bring critical fire weather to the Pacific Northwest and Intermountain West. Heavy rain and thunderstorms continue across portions of the Great Basin, Rockies, and central/southern Plains into the Ozarks. An atmospheric river will bring heavy rain and strong winds to southwest Alaska. Read More >

Station     PAFC     Elevation  144 FT
Fri Aug 29 13:20:03 UTC 2025

Morning Vent Factor:

Temperature           61 Deg F
Mixing Depth MSL      207.9 m
Mixing Depth AGL      164.7 m
Transport Wind        1.54 m/s
Vent Factor           253

Forecast for Afternoon Vent Factor:

Temperature            Deg F
Mixing Depth MSL      131.4 m
Mixing Depth AGL      88.2 m
Transport Wind        1.54 m/s
Vent Factor           135

Vent Factor is considered a measure of the volume rate of horizontal transport of air within the mixing layer, per unit distance, normal to the wind. Units are measured in square meters per second or knot-feet.

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Fire Weather Conditions in the Northwest U.S.; Heavy Rain in the West and South-central U.S.

Anchorage Vent Factor