Atmospheric River in the Pacific Northwest and Northern Rockies this Weekend

A Pacific storm and atmospheric river will impact the Pacific Northwest states and northern Rockies this weekend, bringing locally heavy low elevations rain and heavy high elevation snow in the mountains. By Sunday over the Interior Northwest, rain combined with snowmelt will increase the risk of flood hazards. Flood Watches are in effect. Read More >

Dry today then scattered snow showers Sunday.

Highs today in the mid to upper 20s. Lows tonight in the teens.

Coastal Flooding --- Fire --- Flooding --- Heat --- Thunderstorms --- Tropical --- Winter

Spot Fire Weather Forecast Request

Red Flag Event Criteria

1) Forest fuel conditions dry enough to support dangerous fire behavior. This shall be coordinated with the New Hampshire Forest Protection Bureau, and the Maine Forest Service.

2) Weather conditions which could result in dangerous fire behavior: less than 30% humidity and frequent or sustained gusts above 25 mph.

Note: Both forest and weather conditions must be expected to issue a Red Flag Warning.

Fire Weather Watch is issued up to 72 hours in advance of expected onset of red flag criteria

Red Flag Warning is issued when red flag criteria will occur in 24 hours or less

Day 1 Min RH

Map displays minimum relative humidity values for the afternoon of Day 1.

Map is updated every time the forecaster issues a new forecast.

Day 2 Min RH

Map displays 24 hour minimum relative humidity values for the afternoon of Day 2.

Map is updated every time the forecaster issues a new forecast.

Day 1 Fire Weather Discussion

National Forecast Maps

Surface Analysis

The Weather Prediction Center (WPC) produces surface maps which depicts the analysis of highs, lows, fronts, troughs, outflow boundaries, squall lines, and drylines.