37°45'N / 122°14'W / Altitude 8 m / 18:38 2026/06/11, America/Los_Angeles (UTC-7)
From: 2026/06/11, 12:38
To: 2026/06/11, 18:45
* WHAT...Temperatures between 90 and 95 for most areas, with some readings above 100 degrees. Hottest conditions across the East Bay Hills and Valleys. * WHERE...The Santa Clara Valley and Eastern Hills, and The East Bay Hills and Valleys. * WHEN...Until 7 PM PDT Friday. * IMPACTS...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries. This level of heat affects primarily those individuals extremely sensitive to heat, especially when outdoors without effective cooling and/or adequate hydration.
Alameda
Hydration is a critical piece to surviving the heat. Drink water, and
if possible, take water to those who are vulnerable.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to the early
morning or evening. Take action when you experience symptoms of heat
exhaustion and/or heat stroke.
Beat the heat and check the backseat! Do not leave young children or
pets in unattended vehicles. Car interiors will reach lethal
temperatures in a matter of minutes.
NWS San Francisco CA
2026/06/11, 12:38From: 2026/06/11, 12:38
To: 2026/06/11, 18:45
* WHAT...High temperatures between 90 and 103 for interior valleys and higher elevations. High temperatures between 85 and 96 degrees for the Bay Shoreline. * WHERE...North Bay Interior Mountains and Valleys, and San Francisco Bay Shoreline. * WHEN...Until 11 PM PDT this evening. * IMPACTS...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries.
Alameda,San Francisco Bay ShorelineHydration is a critical piece to surviving the heat. Drink water, and
if possible, take water to those who are vulnerable.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to the early
morning or evening. Take action when you experience symptoms of heat
exhaustion and/or heat stroke.
Beat the heat and check the backseat! Do not leave young children or
pets in unattended vehicles. Car interiors will reach lethal
temperatures in a matter of minutes.NWS San Francisco CA2026/06/11, 12:38
From: 2026/06/11, 19:00
To: 2026/06/11, 21:00
* WHAT...Up to 1.9 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bayshore regions near the San Francisco Bay. * WHEN...From 7 PM this evening to 3 AM PDT Wednesday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide is expected to be 1.3 ft above normal (7.1 ft MLLW) at 8:51 PM on Thursday the 11th, 1.6 ft above normal (7.5 ft MLLW) at 9:34 PM on Friday the 12th, 1.8 ft above normal (7.7 ft MLLW) at 10:20 PM on Saturday the 13th, 1.9 ft above normal (7.8 ft MLLW) at 11:10 PM on Sunday the 14th, 1.7 ft above normal (7.5 ft MLLW) at 12:02 AM on Tuesday the 16th, and 1.5 ft above normal (7.3 ft MLLW) at 12:56 AM on Wednesday the 17th. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.
Alameda,San Francisco Bay ShorelineIf travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.NWS San Francisco CA2026/06/11, 15:35