National Weather Service United States Department of Commerce

Severe Weather Across the Center of the Nation; Fire Weather Concerns for Southwest and California; Snow for the Central Rockies

Severe thunderstorms will continue to impact the center of the Nation through today. Very large hail, strong tornadoes, and damaging winds are expected from the Great Lakes into the central/southern Plains; Flash flooding is possible for portions into the mid-Mississippi Valley. Critical fire weather conditions for the Southwest and central valley of California today. Winter hangs on for Rockies. Read More >

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Last Map Update: Mon, May 18, 2026 at 12:00:28 pm CDT

Strong southwest winds along with low relative humidity and above average temperatures will result in critical fire weather conditions through this afternoon and evening west of the dryline.
Slight Risk (Level 2 of 5) of severe storms Tuesday afternoon and evening in the Permian Basin, Lower Trans Pecos, and Big Bend, with large hail and damaging winds as primary threats.
With the summer-like heat expected the next several days, here are ways you can protect yourself and loved ones. If you are on a job site outside, stay hydrated and take breaks in shade as often as possible. If you are wanting to go outdoors, limit strenuous activity, fine shade, and stay hydrated. Be sure to never leave kids or pets unattended in vehicles, look before you lock! Since the elderly and sick are individuals most vulnerable to the heat, be sure to checked up on them as often as possible.
A cold front and a series of upper disturbances will bring cooler temperatures and an increasing chance of showers/storms during the middle to late part of the week, with highest chances Wednesday into Thursday over the Permian Basin and Trans Pecos. There is a low chance for strong to severe storms and heavy rainfall each day.

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