Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

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Last Map Update: Sat, Aug 15, 2026 at 9:06:24 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

Flash Flood Watch

Red Flag Warning

Hydrologic Outlook

Thunderstorm Outlook

Excessive Rainfall Outlook

Warming Trend

Elevated Fire Danger

High Temperature Probabilities

Isolated to scattered thunderstorms are expected in Eastern Nevada from 1 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 50 mph and dangerous cloud to ground lightning strikes.

Monsoonal moisture will remain over Southern White Pine and Eastern Nye Counties today, resulting in isolated to scattered thunderstorms. Rainfall could be heavy at times. Heavy rainfall may result in flooding of recent burn scars, streams, creeks, and low-lying areas.

High temperatures throughout Northern and Central Nevada this afternoon will be a couple of degrees warmer than yesterday afternoon. Maximum temperatures across Northern and Central Nevada Sunday afternoon will be two to four degrees warmer than this afternoon.

There is an elevated risk of wildfires in Humboldt County Monday. 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 around five degrees below normal for this time of year. A warming trend is expected Sunday through Wednesday. By Wednesday afternoon, high temperatures in Northern and Central Nevada will be a couple of degrees above seasonal values. Here are probabilities of maximum temperatures of 90 degrees or higher for select locations in Northern and Central Nevada from Saturday, August 15th, 2026 through Wednesday, August 19th, 2026.