Severe

Significant threat to life or property

Extreme Heat Warning Arizona, California | Effective 03/21/2026 00:39

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions. Afternoon temperatures 94 to<br /> 108. Overexposure can cause heat cramps and heat exhaustion to<br /> develop and, without intervention, can lead to heat stroke. * WHERE...Portions of southwest Arizona and southeast and southern<br /> California. * WHEN...Until 8 PM MST /8 PM PDT/ Sunday. * IMPACTS...Heat related illnesses increase significantly during<br /> extreme heat events. Instruction:<br />

Extreme Heat Warning Arizona | Effective 03/21/2026 00:39

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions. Afternoon temperatures 99 to<br /> 106. Overexposure can cause heat cramps and heat exhaustion to<br /> develop and, without intervention, can lead to heat stroke. * WHERE...The Northwest Valley of the Phoenix Metro Area, The East<br /> Valley of the Phoenix Metro Area, Buckeye/Avondale, Deer Valley,<br /> Central Phoenix, North Phoenix/Glendale, Scottsdale/Paradise<br />

Extreme Heat Warning Arizona | Effective 03/21/2026 00:39

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions. Afternoon temperatures 97 to<br /> 107. Overexposure can cause heat cramps and heat exhaustion to<br /> develop and, without intervention, can lead to heat stroke. * WHERE...Portions of south central and southwest Arizona. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during<br /> extreme heat events. Instruction:<br /> To reduce risk during outdoor work, the Occupational Safety and<br />

Extreme Heat Warning Arizona | Effective 03/21/2026 00:39

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions. Afternoon temperatures 94 to<br /> 105. Overexposure can cause heat cramps and heat exhaustion to<br /> develop and, without intervention, can lead to heat stroke. * WHERE...Apache Junction/Gold Canyon, Cave Creek/New River,<br /> Dripping Springs, Fountain Hills/East Mesa, New River Mesa, Rio<br /> Verde/Salt River, and Superior. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during<br />

Fire Weather Watch New Mexico, Texas | Effective 03/21/2026 00:43

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH<br /> SUNDAY EVENING FOR 20-FT WINDS ABOVE 20 MPH, RELATIVE HUMIDITY OF<br /> 15% OR LESS, AND HIGH TO EXTREME FIRE DANGER FOR SOUTHEAST NEW<br /> MEXICO AND MOST OF WEST TEXAS... * WINDS...Southwest 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 4 percent. * RFTI...2 or elevated. * IMPACTS...Any fires that develop will likely spread rapidly.<br /> Outdoor burning is not recommended.

Flood Warning Washington | Effective 03/21/2026 00:04

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning continues for the following rivers in<br /> Washington... Cedar River At Renton affecting King County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Cedar River at Renton. * WHEN...Until just after midnight tonight. * IMPACTS...At 13.0 feet, the Cedar River will cause minor flooding<br /> along the river in Renton. * ADDITIONAL DETAILS...<br /> - At 11:15 PM PDT Friday the stage was 13.2 feet.<br />

Fire Weather Watch Kansas | Effective 03/21/2026 00:05

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH<br /> SUNDAY EVENING FOR EXTREME GRASSLAND FIRE DANGER FOR CENTRAL,<br /> SOUTH CENTRAL AND SOUTHEAST KANSAS... * Extreme Grassland Fire Danger... * Winds...Southwest 20 to 30 mph with gusts up to 45 mph. * Relative Humidity...As low as 12 percent. * Impacts...Any fires that develop will have the potential to<br /> spread quickly and behave erratically. Instruction:<br />

Red Flag Warning Kansas | Effective 03/21/2026 00:05

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH<br /> SUNDAY EVENING FOR EXTREME GRASSLAND FIRE DANGER FOR CENTRAL,<br /> SOUTH CENTRAL AND SOUTHEAST KANSAS... * Extreme Grassland Fire Danger... * Winds...Southwest 20 to 30 mph with gusts up to 45 mph. * Relative Humidity...As low as 12 percent. * Impacts...Any fires that develop will have the potential to<br /> spread quickly and behave erratically. Instruction:<br />

Fire Weather Watch Kansas | Effective 03/21/2026 00:05

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * Extreme Grassland Fire Danger... * Winds...Southwest 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 27 percent. * Impacts...Any fires that develop will have the potential to<br /> spread quickly and behave erratically. Instruction:<br /> A fire weather watch means that critical fire weather conditions<br /> are forecast to occur. Listen for later forecasts and possible<br /> red flag warnings.

Flash Flood Warning Severe Hawaii | Effective 03-20-2026 16:31

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> FFWHFO The National Weather Service in Honolulu has extended the * Flash Flood Warning for...<br /> The island of Oahu in Honolulu County * Until 500 PM HST. * At 131 PM HST, emergency management reported ongoing flood impacts<br /> in the North Shore areas. The Wahiawa Reservoir and area streams<br /> remain elevated as well. Additional areas of heavy rain are<br /> expected over the next few hours which could exacerbate existing<br />
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