NWS Seattle Briefings & Information

Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Situation Briefing

These briefings are updated when significant weather is expected.

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Weather Risk Matrix

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Special Events Briefings

Access active briefings and view live status updates below. This page will be operational from June 5 - July 19, 2026. Please note that not all briefings are updated daily. Briefings for Fan Zones and other local events are issued daily for the 3 days leading up to an activation date. These briefings and more information may also be accessed via the NWS Washington Special Events Dashboard.

Briefing Focus	Last Updated	Status

How We Determine Risk

Weather Risk Outlook colors are determined by examining both the impact level and the associated probability of potential scenarios.

1 Impact Assessment

2 Risk Level Calculation

Hazard Classification