National Weather Service United States Department of Commerce

Heat And Possible Flooding To Start Off The Week

Dangerous heat will impact portions of the Northwest, Northeast, and Mid to Lower Mississippi Valley today. Heat advisories are in effect for these major metro areas: Boston, New York City, Philadelphia, Seattle and St. Louis. A few flash flood concerns today from heavy rain and storms in the Four Corners region, northern New England and the western Ohio Valley into the Mid Mississippi Valley. Read More >

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Last Map Update: Mon, Aug. 8, 2022 at 6:00:12 pm PDT

National Weather Service Sacramento, CANational Weather Service Reno, NVNational Weather Service Elko, NV
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National Weather Service Las Vegas, NV
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A few strong thunderstorms are possible in the Sierra Nevada, including the edge of Yosemite NP to the edge of Sequoia NP, on Tuesday afternoon and evening. Dangerous cloud to ground lightning strikes and wind gusts near 45 mph are a couple of hazards associated with strong thunderstorms. In addition, any thunderstorm can produce intense rainfall rates that may lead to localized flooding.
Temperatures are expected to be in the mid to upper 90s for the southern portion of the San Joaquin Valley with a probability in the teens to just over twenty percent of possible triple digits for Tuesday August 9th.
Temperatures are expected to be in the mid to upper 90s for the northern portion of the San Joaquin Valley with a slight chance of triple digits tomorrow afternoon.


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