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NWS San Diego CAFA.A 0001October 10, 2026

Flood Watch: San Diego County Coastal Areas, San Diego County Inland Valleys, San Bernardino County Mountains and 6 more, CA

The National Weather Service office in San Diego issued a flood watch for San Diego County Coastal Areas, San Diego County Inland Valleys, San Bernardino County Mountains and 6 more in California, in force until 8:00 p.m. local time on October 11. It was the 1st areal flood watch the NWS office in San Diego issued in 2026. California had 3 flood watches in October 2026, against 1 in an average October of 2008-2025 (California's flood watchs by year).

Watch

Issued11:36 a.m. PDT, October 10, 2026
In force from11:00 p.m. PDT, October 10, 2026
Expires8:00 p.m. PDT, October 11, 2026

In force for 21 hours

The notice

Issued by
National Weather Service, San Diego CA
Area
San Diego County Coastal Areas, San Diego County Inland Valleys, San Bernardino County Mountains and 6 more
State
California
Level
Watch
Issued
11:36 a.m. PDT, October 10, 2026
In force from
11:00 p.m. PDT, October 10, 2026
Expires
8:00 p.m. PDT, October 11, 2026
CAP severity, certainty, urgency
Severe, Possible, Future
VTEC event
KSGX FA.A 0001
Official source
National Weather Service: the notice at its source

Flood Watches in California since 2008Every warning type in California

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Southwest California, including the following areas, Apple and Lucerne Valleys, Coachella Valley, Riverside County Mountains, San Bernardino County Mountains, San Diego County Coastal Areas, San Diego County Deserts, San Diego County Mountains, San Diego County Valleys and San Gorgonio Pass near Banning. * WHEN...From 11 PM PDT this evening through Sunday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Tropical Storm Rachel will bring periods of moderate to heavy rain to all of San Diego County, Riverside County mountains and deserts, and San Bernardino County mountains and deserts. Maximum hourly rainfall rates of 0.50 to 0.60 inches per hour are possible for San Diego Coast and Valleys. Maximum hourly rainfall rates of 0.50 to 0.70 inches per hour are possible across area deserts and 0.70 to 1 inch per hour rates are possible across area mountains. Heaviest rainfall is most likely late Saturday night through early Sunday afternoon. Rainfall will taper off from south to north Sunday. Lingering lighter showers are expected to continue into Monday. - https://www.weather.gov/safety/flood

What the agency told people to do

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice