Nor'easter Bringing Dangerous Coastal Conditions to the Mid-Atlantic; Pacific Storm to Impact the Southwest U.S.

A Nor'easter well off the East Coast will slowly track north this week and may gain some subtropical characteristics. Strong onshore winds will bring flooding, dangerous marine conditions, and beach erosion along the Mid-Atlantic coast. A Pacific storm will bring gusty winds, severe thunderstorms, and mountain snow to portions of California and the Southwest U.S. through Thursday. Read More >

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Last Map Update: Wed, Oct 21, 2026 at 3:36:16 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

Severe Thunderstorm Warning

Flood Advisory

Flood Watch

Flood Watch Wednesday-Thursday

Timing of Precipitation

Excessive Rainfall Outlook Wednesday-Thursday

Severe Storm Risk Wednesday

Severe Storm Risk Thursday

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 a chance for a few tornadoes. The severe threat peaks on Wednesday afternoon/evening.

Severe thunderstorms with localized damaging wind gusts over 60 mph and hail over 1 inch diameter are possible. There is a low-end chance for a few tornadoes.