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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 7:40:16 am MDT

A flood watch is in effect for Wednesday through Thursday across much of southern and eastern Utah. Widespread moderate and locally heavy rainfall will bring many normally dry washes, slot canyons, and streams to run high and fast, while embedded heavy rainfall may result in more significant flash flooding. Backcountry roads across southern Utah may become impassible due to flood waters.
There is a high risk of flash flooding across many southern Utah parks and recreation areas Wednesday and Thursday. Strongly consider altering plans to avoid normally dry wash, slot canyons, streams, backcountry roads and low water crossings.
A widespread 1 to 3 inches of rainfall is expected across southern Utah, with a 10% chance of reaching 3 to 5 inches across the Grand Staircase. Eastern Utah is expect to see amounts of 1 to 2 inches with a 10% chance of reaching 2 to 3 inches across Castle Country.
In addition to the heavy rainfall, isolated severe thunderstorms capable of damaging winds, large hail and an isolated tornado are possible on Wednesday across southern Utah. Have a way to receive weather warnings and remain weather aware.
There is a marginal risk of severe thunderstorms across much of southern, central and western Utah on Thursday. The main risks are large hail, damaging winds, and frequent lightning in addition to the heavy rainfall potential.

 

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