Severe

Significant threat to life or property

Flood Warning Washington | Effective 03/21/2026 19:34

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. * 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 /> City and low pasture lands along the river from near Ferndale<br />

Red Flag Warning Iowa | Effective 03/21/2026 19:35

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> Relative humidity values are rising above critical levels late<br /> this evening and will continue to rise overnight. While a cold<br /> front will cause winds to shift and blow from the north-northeast<br /> and increase to between 15 to 20 mph by Sunday morning, the higher<br /> relative humidity will keep conditions above critical levels. Instruction:

Winter Storm Warning Hawaii | Effective 03/21/2026 19:44

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...A WINTER STORM WARNING IS IN EFFECT FROM 6 PM HST THIS EVENING TO<br /> 6 PM HST SUNDAY FOR THE BIG ISLAND SUMMIMTS ABOVE 12000 FEET... .A kona storm is expected to bring heavy snow and strong winds to<br /> the summits beginning this evening and lasting through Sunday<br /> afternoon. * WHAT...Heavy snow expected. Total snow accumulations up to 10<br /> inches. Winds gusting as high as 60 mph. * WHERE...Big Island Summits. * WHEN...Until 6 PM HST Sunday.

Red Flag Warning Oklahoma, Texas | Effective 03/21/2026 19:08

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> Elevated fire weather conditions will escalate to critical Sunday,<br /> with a significant wind shift expected to move through the forecast<br /> area Sunday. * WINDS...Southwest winds becoming north 20 to 30 mph with gusts<br /> up to 45 mph. * RELATIVE HUMIDITY...As low as 7 to 15 percent. * TEMPERATURES...Highs near 75 northwest Oklahoma to near 100<br /> north Texas. * IMPACTS...Any fires that develop will likely spread rapidly.<br />

Red Flag Warning Oklahoma, Texas | Effective 03/21/2026 19:08

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> Elevated fire weather conditions will escalate to critical Sunday,<br /> with a significant wind shift expected to move through the forecast<br /> area Sunday. * WINDS SUNDAY...Southwest winds becoming north 20 to 30 mph<br /> with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 7 to 15 percent. * TEMPERATURES...Highs near 75 northwest Oklahoma to near<br /> 100 north Texas. * IMPACTS...Any fires that develop will likely spread rapidly.<br />

Winter Storm Warning Alaska | Effective 03/21/2026 19:13

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...PERIODS OF SNOW FOR PARTS OF THE PANHANDLE THROUGH SUNDAY<br /> NIGHT... .A heavy band of snow is moving through the panhandle, bringing a<br /> short period of heavy snow with accumulations of 2 to 4 inches.<br /> While this band will move over relatively quickly, showers along<br /> the back side of the band will continue periods of light to<br /> moderate snow overnight. Temperatures are expected to start<br />

Flash Flood Warning Hawaii | Effective 03/21/2026 19:17

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> At 417 PM HST, radar indicated heavy showers have diminished<br /> slightly, with rain falling at rates of up to 1 inch per hour.<br /> Flooding remains ongoing. Stream levels remain high across West<br /> Maui, especially in Ukumehame Gulch and the Waihee River, and<br /> emergency management reported road closures in Lahaina, Kahului, and<br /> Wailuku areas. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar.
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