« View county listFlood Advisory
Napa CA-Sonoma CA-Santa Clara CA-Santa Cruz CA-Alameda CA-
San Francisco CA-Marin CA-Contra Costa CA-San Mateo CA-
355 PM PST WED JAN 18 2017
The National Weather Service in The San Francisco Bay Area has issued
* Urban and Small Stream Flood Advisory for...
Napa County in northern California...
Sonoma County in northern California...
Santa Clara County in northern California...
Santa Cruz County in northern California...
Alameda County in northern California...
San Francisco County in northern California...
Marin County in northern California...
Central Contra Costa County in northern California...
San Mateo County in northern California...
* Until 815 PM PST
* At 342 PM PST, a trained weather spotter reported heavy rain
causing minor roadway flooding over northern Healdsburg. Highway
Patrol reports roadway flooding on Highway 17 near Los Gatos and
West San Jose. Additional roadway flooding is very likely in the
typical poor drainage areas into this evening. Evening commuters
please use extra caution on the roadways as hazards like water
ponding and localized flooding where water typically collects are
* Some locations that will experience flooding include...
San Jose, San Francisco, Oakland, Fremont, Santa Rosa, Hayward,
Sunnyvale, Concord, Santa Clara, Berkeley, Richmond, Daly City, San
Mateo, San Leandro, Livermore, Napa, Redwood City, Mountain View,
Alameda and San Ramon.
Runoff from heavy rainfall will cause rises on small creeks and
streams, localized flooding in urban areas, highways, streets and
underpasses as well as other drainage areas and low lying spots.
Move away from recently burned areas. Heavy rains may trigger
rockslides, mudslides and debris flows in steep terrain, especially
in and around these areas.
Please report flooding to your local law enforcement agency when you
can do so safely.
A Flood Advisory means river or stream flows are or will become
elevated, or ponding of water in urban or other areas is occurring
or is imminent.
LAT...LON 3884 12229 3835 12208 3832 12221 3808 12225
3774 12156 3725 12146 3715 12123 3700 12123
3686 12185 3696 12224 3752 12261 3777 12261
3794 12299 3877 12353 3885 12282 3867 12261
SAN FRANCISCO-SAN FRANCISCO BAY SHORELINE-
SAN FRANCISCO PENINSULA COAST-EAST BAY INTERIOR VALLEYS-
EAST BAY HILLS AND THE DIABLO RANGE-SANTA CRUZ MOUNTAINS-
SANTA CLARA VALLEY INCLUDING SAN JOSE-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...SAN FRANCISCO...OAKLAND...FREMONT...
LIVERMORE...WALNUT CREEK...PLEASANTON...PITTSBURG...SAN RAMON...
BLACKHAWK...SCOTTS VALLEY...BOULDER CREEK...DAY VALLEY...
SAN JOSE...SALINAS...SANTA CRUZ...WATSONVILLE...LIVE OAK...
158 PM PST WED JAN 18 2017
...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST THURSDAY...
* TIMING...THIS AFTERNOON AND TONIGHT.
* WINDS...SOUTHERLY WIND GUSTS FROM 40 TO 50 MPH...STRONGEST
NEAR THE COAST AND IN THE HILLS ABOVE 1000 FEET.
* IMPACTS...DOWNED TREES...LIMBS AND POWERLINES LEADING TO
POSSIBLE POWER OUTAGES. DRIVING OF HIGH PROFILE VEHICLES WILL
BE DIFFICULT DURING PERIODS OF STRONG WINDS ALONG WITH EXTRA
DEBRIS ON AREA ROADS.
A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.