National Weather Service United States Department of Commerce

Lowell to Impact Hawaii; Heat Persists in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai`s coastal waters tonight. Impacts such as high surf and heavy rain could impact all of the islands. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley into this week with limited nighttime relief. Periods of moderate to heavy rainfall will be possible through Tuesday morning in the northern Rockies. Read More >

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Last Map Update: Mon, Sep 7, 2026 at 7:28:21 pm PDT

⚠️ HEAT ADVISORY: Wednesday 10 AM through Thursday 10 PM ⚠️ A Heat Advisory has been issued for the San Francisco Bay Area and Central Coast as hot conditions peak mid-week. Forecast Details: Interior Highs: 90°F to 105°F Coastal Highs: Mid-70s to low-90s Overnight Lows: Mid-60s to low-70s, with higher elevations remaining elevated in the 70s to 80s, offering little overnight relief. Impacts: Heat illness risk will be elevated for anyone spending prolonged time outdoors, particularly during peak afternoon hours or while performing physical exertion. Heat Safety Tips: Drink plenty of water or sports drinks throughout the day—don't wait until you're thirsty. Take frequent breaks in air conditioning or shade. Shift outdoor activities to cooler morning or evening times. Look before you lock: Never leave people or pets inside an unattended vehicle!
Hazardous conditions at Pacific Coast beaches are expected through Monday. Two sets of long period southerly swell from distant Hurricane Karina and Hurricane Marie will result in an increased risk for sneaker waves and strong rip currents with breaking waves up to 10 feet. Stay off of beaches, jetties, and rocks and remain out of the water!

 

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