Severe

Significant threat to life or property

Fire Weather Watch New Mexico, Texas | Effective 03/21/2026 12:42

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 10 PM CDT SUNDAY FOR<br /> WIND AND LOW RELATIVE HUMIDITY FOR 20-FT WINDS ABOVE 20 MPH,<br /> RELATIVE HUMIDITY OF 10% OR LESS, AND HIGH TO EXTREME FIRE DANGER<br /> FOR THE PERMIAN BASIN AND LOWER TRANS PECOS... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY MORNING<br /> THROUGH SUNDAY EVENING FOR 20-FT WINDS ABOVE 20 MPH, RELATIVE<br /> HUMIDITY OF 10% OR LESS, AND HIGH TO EXTREME FIRE DANGER FOR<br />

Red Flag Warning Texas | Effective 03/21/2026 12:42

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 10 PM CDT SUNDAY FOR<br /> WIND AND LOW RELATIVE HUMIDITY FOR 20-FT WINDS ABOVE 20 MPH,<br /> RELATIVE HUMIDITY OF 10% OR LESS, AND HIGH TO EXTREME FIRE DANGER<br /> FOR THE PERMIAN BASIN AND LOWER TRANS PECOS... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY MORNING<br /> THROUGH SUNDAY EVENING FOR 20-FT WINDS ABOVE 20 MPH, RELATIVE<br /> HUMIDITY OF 10% OR LESS, AND HIGH TO EXTREME FIRE DANGER FOR<br />

Extreme Heat Warning Arizona | Effective 03/21/2026 12:06

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions with high temperatures of 100 to<br /> 108 degrees. * WHERE...South Central Pinal County, Southeast Pinal County, Tohono<br /> O'odham Nation, Tucson Metro Area, and Western Pima County. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during<br /> extreme heat events. * ADDITIONAL DETAILS...Visitors, seasonal residents, and other people<br />

Extreme Heat Warning Arizona | Effective 03/21/2026 12:06

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions with high temperatures of 95 to<br /> 100 degrees. * WHERE...Eastern Cochise County below 5000 feet, Upper Gila River<br /> Valley, Upper San Pedro River Valley, and Upper Santa Cruz River<br /> Valley/Altar Valley. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during<br /> extreme heat events. * ADDITIONAL DETAILS...Visitors, seasonal residents, and other people<br />

Extreme Heat Warning Arizona | Effective 03/21/2026 12:09

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions below 4000 feet, with daytime<br /> temperatures ranging from 93 degrees at Havasupai Gardens, to 101<br /> degrees at Phantom Ranch. * WHERE...Lower elevations of the Grand Canyon. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Most individuals will be at risk for heat-related<br /> illnesses without effective cooling or adequate hydration,<br /> especially with prolonged outdoor exposure. Instruction:<br />

Extreme Heat Warning Arizona | Effective 03/21/2026 12:09

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions, with temperatures up to 99 below<br /> 4000 feet. * WHERE...Yavapai County Valleys and Basins. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Pets, livestock, and those sensitive to heat, such as the<br /> homeless, elderly, and children will be at risk for heat-related<br /> illnesses. Those without effective cooling and/or adequate<br /> hydration will be at the greatest risk. Instruction:<br />

Flood Warning Washington | Effective 03/21/2026 11:46

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning continues for the following rivers in<br /> Washington... Nooksack River At Ferndale affecting Whatcom County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Nooksack River at Ferndale. * WHEN...Until just after midnight tonight. * IMPACTS...At 18.0 feet, the river begins overtopping its banks<br /> within the City of Ferndale flooding low-lying areas within the<br />

Winter Storm Warning Hawaii | Effective 03/21/2026 11:49

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...A WINTER STORM WARNING IS NOW IN EFFECT FROM 6 PM HST THIS<br /> EVENING TO 6 PM HST SUNDAY FOR THE BIG ISLAND SUMMIMTS ABOVE 12000<br /> FEET... .A kona storm is likely to bring heavy snow and strong winds to the<br /> summits beginning this evening and lasting through Sunday afternoon. * WHAT...Heavy snow possible. Total snow accumulations up to 10<br /> inches possible. Winds could gust as high as 70 mph. Light snow<br /> may linger Sunday night into Monday.

Fire Weather Watch New Mexico | Effective 03/21/2026 11:23

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...FIRE WEATHER WATCH SUNDAY FROM NOON UNTIL 8 PM MDT FOR THE<br /> NORTHEAST AND EAST CENTRAL PLAINS DUE TO STRONG WIND AND LOW<br /> HUMIDITY... .After widespread poor humidity recovery tonight, a dry backdoor<br /> cold front will plunge through the eastern plains Sunday with<br /> northeast wind gusts up to 40 mph. Despite the backdoor front,<br /> humidity will mostly bottom out in the single-digits Sunday<br />

Flash Flood Warning Hawaii | Effective 03/21/2026 11:40

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> At 840 AM HST, emergency management continued to report road<br /> closures across Oahu due to recent flooding, and the Wahiawa<br /> Reservoir remains elevated. While the heaviest bands of showers have<br /> moved east of Oahu, additional showers with rain rates of 0.5 to 1<br /> inch per hour will be moving over the island from the south and west<br /> this morning. HAZARD...Flash flooding caused by heavy rain. SOURCE...Emergency management.
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