[EAS #5] Flash Flood Warning for San Mateo County, CA


Hollister Valley and Carmel Valley, San Francisco, San Francisco Bay Shoreline, San Francisco Peninsula Coast, Santa Clara Valley including San Jose, Santa Cruz Mountains, Santa Lucia Mountains and Los Padres National Forest, Southern Monterey Bay and Big Sur, Coast and Southern Salinas Valley/Arroyo Seco and Lake San Antonio Through late tonight a prolonged period of moderate to heavy rainfall is anticipated to fall on already saturated soils through Monday evening. This will result in sharp rises on area creeks, streams, and rivers and will likely result in flooding. Impacts include enhanced runoff and associated flooding in low-lying areas and waterways, rising water levels and flooding on area streams, creeks, and rivers. Other impacts include increased risk of rock, mud slides and steep terrain, downed trees and power lines, and damaged to or washed out roadways. A Flood Watch means there is a potential [Header tones] [1050 Hz alarm tone] [Alarm tone] The following is an important message from the National Weather Service. Issued at 7:17 PM PST, The National Weather Service in The San Francisco Bay Area has issued a Flash Flood Warning for Southeastern San Mateo County in northern California Until 10:15 PM PST. At 7:00 PM PST, the stream gage on the Pescadero Creek near
Pescadero indicated a stage of 13.6 feet and the river was
continuing to rise. Flood stage at this location is 12 feet. While most heavy rainfall has ended across the Pescadero basin, or will end shortly, continued runoff from heavy rain earlier in the day may result in additional rises on the river this evening. Flash flooding will remain over mainly rural areas of southeastern San Mateo County. Turn around, don’t drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. [EOM tones]

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