Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

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Last Map Update: Mon, Aug 17, 2026 at 10:56:31 am PDT

Watches, Warnings & Advisories

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National Weather Service Salt Lake City, UT

National Weather Service San Joaquin Valley, CA

National Weather Service NWS Flagstaff, AZ

Extreme Heat Warning

Thunderstorm Outlook

Elevated Fire Danger

Warming Trend

Moderate Heat Risk

Weather History

Isolated thunderstorms are expected in Northeastern Nevada from 12 PM PDT this afternoon until 8 PM PDT this evening. A few of these thunderstorms could be strong. The primary thunderstorm hazards will be wind gusts near 45 mph and dangerous cloud to ground lightning strikes.

There is an elevated risk of wildfires in Humboldt County today. The combination of critically dry fuels, very low relative humidity values, and gusty southwest winds can contribute to extreme fire behavior. Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.

Maximum temperatures across Northern and Central Nevada this afternoon will be near normal for this time of year. A warming trend is expected Tuesday through Thursday. By Thursday afternoon, high temperatures in Northern and Central Nevada will be around five degrees above seasonal values.

High temperatures throughout Northern Nevada Thursday afternoon will be around five degrees above normal for this time of year. This will result in a moderate risk for heat-related illnesses. Although heat events like this are relatively common and happen many times a year, heat-related impacts are possible for those new to the area if simple precautions are not taken. Plan to take action to reduce time outdoors, drink plenty of water, and remain in air-conditioned buildings. Heat-sensitive groups, such as the elderly, young children, and those with chronic ailments may need assistance to avoid heat-related illnesses. As always, never, ever leave a child or pet in an enclosed automobile.