Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska

A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. Read More >

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Last Map Update: Tue, Oct 20, 2026 at 9:00:13 am MST

Watches, Warnings & Advisories

National Weather Service Salt Lake City, UT

National Weather Service Grand Junction, CO

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National Weather Service Albuquerque, NM

National Weather Service NWS Tucson Arizona

Flood Watch

Flood Watch Wednesday-Thursday

Timing of Precipitation

Excessive Rainfall Outlook Wednesday-Thursday

Severe Storm Risk Wednesday

A strong Pacific weather system will bring a deep surge of moisture to northern Arizona, with periods of widespread showers and thunderstorms expected. Rainfall accumulations up to 1-3 inches are possible with locally higher amounts expected. A Flood Watch is in effect for Wednesday and Thursday.

Shower and thunderstorm chances move in from the south late tonight and into tomorrow morning. Periods of widespread showers and thunderstorms are expected Wednesday-Thursday, then chances decline from west to east on Thursday night.

A Pacific weather system will bring a deep surge of moisture on Wednesday and Thursday. There is risk of both Flooding and Flash Flooding through the period.

Severe thunderstorms are possible as a Pacific weather system approaches Arizona. There are isolated threats of wind gusts over 60 mph and hail over 1 inch diameter. There is even a low-end chance for a few tornadoes. The severe threat peaks on Wednesday afternoon/evening.