Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

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Last Map Update: Tue, Jun 16, 2026 at 10:54:17 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

Extreme Heat Warning

Red Flag Warning

Fire Weather Watch

Extreme Heat Warning for Grand Canyon

Weather Outlook

An Extreme Heat Warning has been issued for the Grand Canyon below 4000 feet elevation for Tuesday through Wednesday. Afternoon temperatures will reach 105 to 110, creating hazardous conditions for hikers. Hiking during the daytime is discouraged in the lower canyon.