Station Name: ARROYO VALLE NR LIVERMORE CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 555 feet

Nearest Address:
5035–5069 Arroyo Rd
Livermore, CA 94550
Alameda County

GPS Coordinates: 37.62326509, -121.7588418

Nearby Water Temperatures

Red Flag Warning issued June 9 at 9:38AM PDT until June 11 at 9:00AM PDT by NWS San Francisco CA

Effective: Tue June 9, 2026, 9:38 AM
Expires: Tue June 9, 2026, 7:00 PM

...RED FLAG WARNING IN EFFECT FROM 11 PM WEDNESDAY TO 9 AM PDT THURSDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS AND EAST BAY HILLS... ....Hot, dry, and windy conditions combined with mixed vegetation, such as grass, will lead to critical fire weather conditions Wednesday night into Thursday morning... The National Weather Service in San Francisco CA has issued a Red Flag Warning. * AFFECTED AREA...East Bay Hills and North Bay Interior Mountains. * TIMING...From 11 PM Wednesday to 9 AM PDT Thursday. * WINDS 20 FOOT...Northwest winds 10 to 20 mph with gusts up to 45 mph. Ridge top wind gusts may exceed 60 mph. * RELATIVE HUMIDITY...Relative Humidity between 12 to 18 percent. * IMPACTS...Extreme fire behavior and rapid rates of spread likely on new and existing wildfires. There will be an increased risk for power outages.

Please advise responding agencies or fire crews in the field of this fire weather alert. Never leave burning debris or camp fires unattended; extinguish them completely. Avoid using equipment or machinery that could create a spark. Secure tow chains to avoid dragging and subsequent sparks. Never toss cigarette butts out of your vehicle's window. Remember, one less spark, one less flame. Familiarize yourself with your emergency plan! Where will you go? How will you get there? Do you have your go kit ready to go? Who will you call to let others know you are safe? Visit ready.gov/plan for more information.

Heat Advisory issued June 9 at 1:29PM PDT until June 11 at 11:00PM PDT by NWS San Francisco CA

Effective: Tue June 9, 2026, 1:29 PM
Expires: Wed June 10, 2026, 5:00 AM

* 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...The East Bay and San Francisco Bay Shoreline, North Bay Interior Mountains and Valleys, and The Santa Clara Valley and Eastern Hills. * WHEN...From noon to 11 PM PDT Thursday. * 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.

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.

Coastal Flood Advisory issued June 9 at 11:09PM PDT until June 13 at 1:00AM PDT by NWS San Francisco CA

Effective: Tue June 9, 2026, 11:09 PM
Expires: Wed June 10, 2026, 3:00 PM

* WHAT...Up to 1.5 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 Thursday to 1 AM PDT Saturday. * 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 1.2 ft above normal (6.98 ft MLLW) at 851 PM on Thursday the 11th, and 1.5 ft above normal (7.23 ft MLLW) at 934 PM on Friday the 12th. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.

If 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.

Red Flag Warning issued June 9 at 6:43PM PDT until June 11 at 9:00AM PDT by NWS San Francisco CA

Effective: Tue June 9, 2026, 6:43 PM
Expires: Wed June 10, 2026, 6:00 AM

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 9 AM PDT THURSDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS AND EAST BAY HILLS... ....Hot, dry, and windy conditions combined with mixed vegetation, such as grass, will lead to critical fire weather conditions Wednesday night into Thursday morning... * AFFECTED AREA...East Bay Hills and North Bay Interior Mountains. * TIMING...From 11 PM Wednesday to 9 AM PDT Thursday. * WINDS 20 FOOT...Northwest winds 10 to 20 mph with gusts up to 45 mph. Ridge top wind gusts may exceed 60 mph. * RELATIVE HUMIDITY...Relative Humidity between 12 to 18 percent. * IMPACTS...Extreme fire behavior and rapid rates of spread likely on new and existing wildfires. There will be an increased risk for power outages.

Please advise responding agencies or fire crews in the field of this fire weather alert. Never leave burning debris or camp fires unattended; extinguish them completely. Avoid using equipment or machinery that could create a spark. Secure tow chains to avoid dragging and subsequent sparks. Never toss cigarette butts out of your vehicle's window. Remember, one less spark, one less flame. Familiarize yourself with your emergency plan! Where will you go? How will you get there? Do you have your go kit ready to go? Who will you call to let others know you are safe? Visit ready.gov/plan for more information.

Beach Hazards Statement issued June 9 at 11:09PM PDT until June 11 at 5:00AM PDT by NWS San Francisco CA

Effective: Tue June 9, 2026, 11:09 PM
Expires: Wed June 10, 2026, 3:00 PM

* WHAT...Increased risk of sneaker waves and strong rip currents due to long period southerly swell. * WHERE...Pacific Coast beaches, especially south and southwest facing beaches, across Sonoma, Marin, San Mateo, and Santa Cruz Counties. * WHEN...Through 5 AM Thursday morning. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion can be expected. Sneaker waves can sweep across the shoreline without warning, pulling people into the sea from rocks, jetties and beaches.

Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.