Contra Costa County

Alerts in effect

Alerts covering all or part of Contra Costa County.

• Heat Advisorymoderate

  Sonoma Coastal Range; North Bay Interior Mountains; San Francisco Bay Shoreline; East Bay Interior Valleys; Santa Cruz Mountains; Santa Clara Valley Including San Jose; Eastern Santa Clara Hills; East Bay Hills; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park

  NWS San Francisco CA · until Oct 4, 10:00 PM PDT

• Coastal Flood Advisoryminor

  San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast

  NWS San Francisco CA · until Oct 2, 6:00 PM PDT

Outlook for the days ahead

• Severe Thunderstorm Outlook, Day 1: no risk area over Contra Costa County until Oct 3, 12:00 PM UTC · Storm Prediction Center
• Excessive Rainfall Outlook, Day 1: no risk area over Contra Costa County until Oct 3, 12:00 PM UTC · Weather Prediction Center
• Severe Thunderstorm Outlook, Day 2: no risk area over Contra Costa County until Oct 4, 12:00 PM UTC · Storm Prediction Center
• Excessive Rainfall Outlook, Day 2: no risk area over Contra Costa County until Oct 4, 12:00 PM UTC · Weather Prediction Center
• Severe Thunderstorm Outlook, Day 3: no risk area over Contra Costa County until Oct 5, 12:00 PM UTC · Storm Prediction Center
• Excessive Rainfall Outlook, Day 3: no risk area over Contra Costa County until Oct 4, 12:00 PM UTC · Weather Prediction Center
• Excessive Rainfall Outlook, Day 4: no risk area over Contra Costa County until Oct 6, 12:00 PM UTC · Weather Prediction Center
• Excessive Rainfall Outlook, Day 5: no risk area over Contra Costa County until Oct 7, 12:00 PM UTC · Weather Prediction Center

Rainfall forecast

• Day 1 (24 hours): no measurable rain forecast in Contra Costa County issued Oct 2, 5:41 AM UTC · Weather Prediction Center
• Days 1–3 (72 hours): no measurable rain forecast in Contra Costa County issued Oct 2, 5:53 AM UTC · Weather Prediction Center
• Days 1–7: no measurable rain forecast in Contra Costa County issued Oct 2, 5:54 AM UTC · Weather Prediction Center

River gauges

• Marsh Creek Reservoir
  NowAction stage169.29 ftOct 2, 12:00 AM PDT
• Alhambra Creek at D Street
  NowFlood stages not defined0.26 ftOct 2, 12:00 AM PDT
• Alhambra Creek at Ward St
  NowFlood stages not defined0.07 ftOct 2, 12:00 AM PDT
• Discovery Bay at Discovery Bay Island Bay Blvd
  NowFlood stages not defined6.18 ftOct 2, 12:15 AM PDT
• Discovery Bay at Indian Slough
  NowFlood stages not defined5.92 ftOct 2, 12:15 AM PDT
• Dutch Slough below Jersey Island Rd at Jersey Island
  NowFlood stages not defined9.22 ftOct 1, 11:00 PM PDT
• False River near Oakley Ca
  NowFlood stages not defined18.42 ftOct 1, 11:15 PM PDT
• Galindo Creek at Treat Blvd
  NowFlood stages not defined0 ftOct 1, 6:15 PM PDT