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3 products issued by NWS for: San Francisco CA
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Wind Advisory

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
439 PM PDT Sun Oct 24 2021

CAZ006-508>513-529-250300-
/O.CON.KMTR.WI.Y.0012.000000T0000Z-211025T0300Z/
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-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore,
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk,
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz,
Watsonville, and Live Oak
439 PM PDT Sun Oct 24 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...

* WHAT...South winds 25 to 35 mph with gusts up to 55 mph.

* WHERE...Portions of northern California.

* WHEN...Until 8 PM PDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects.
  Tree limbs could be blown down and a few power outages may
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$



Flood Advisory

Flood Advisory
National Weather Service San Francisco CA
419 PM PDT Sun Oct 24 2021

.Moderate to heavy rainfall is occurring across the region and there
have been recent reports of minor flooding. Additional rainfall is
expected into the evening which will likely cause additional
flooding in urban and small stream areas.

CAC075-081-085-087-250415-
/O.NEW.KMTR.FA.Y.0014.211024T2319Z-211025T0415Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Francisco CA-San Mateo CA-Santa Clara CA-Santa Cruz CA-
419 PM PDT Sun Oct 24 2021

The National Weather Service in San Francisco has issued a

* Urban and Small Stream Flood Advisory for...
  San Francisco County in northern California...
  San Mateo County in northern California...
  Northwestern Santa Clara County in northern California...
  Northwestern Santa Cruz County in northern California...

* Until 915 PM PDT.

* At 419 PM PDT, Doppler radar and automated rain gauges indicated
  heavy rain. This is causing urban and small stream flooding.
  Between 1 and 5 inches of rain have fallen.

* Some locations that will experience flooding include...
  San Francisco, Daly City, San Mateo, Redwood City, Palo Alto,
  South San Francisco, San Bruno, Pacifica, Menlo Park, Foster City,
  Burlingame, San Carlos, East Palo Alto, Belmont, Millbrae, Half
  Moon Bay, Hillsborough, Atherton, Woodside and Highlands-Baywood
  Park.

Additional rainfall amounts of 1 to 3 inches are expected over the
area. This additional rain will result in minor flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3778 12252 3781 12248 3779 12239 3775 12239
      3773 12236 3764 12240 3762 12235 3761 12236
      3761 12238 3747 12211 3744 12218 3736 12220
      3722 12215 3728 12231 3716 12233 3720 12241
      3736 12240 3748 12245 3754 12252

$$

BB



High Surf Warning

Coastal Hazard Message
National Weather Service San Francisco CA
146 PM PDT Sun Oct 24 2021

...A VERY LARGE SWELL TRAIN WILL BRING COASTAL HAZARDS TO WEST TO
NORTHWEST FACING BEACHES...

A strong, early season storm system arrives today and will result
in significantly increased wave energy from late today into early
Tuesday. This wave energy will transition through the coastal
waters from late today into Tuesday, and peak on Monday. Swell of
16 to 24 feet at 16 to 18 seconds is forecast to arrive with the
swell train as it peaks on Monday and result in a number of
coastal hazards. These hazards include large breaking waves of
20 to 30 feet (higher at favored break points), increased risk of
strong longshore and rip currents, increased risk of coastal
erosion and minor coastal flooding, and enhanced coastal run up
concerns due to the summer beach profiles in place. Due to the
early arrival of these large waves, many beaches are still
transitioning from their summer beach profiles and lack the
features and steepness to resist larger wave run up on coasts.
This means that more of this wave energy will have a chance to
move onto the beach and overtake individuals, potentially
injuring them, or pulling them into the cold ocean. Each year,
people die at the coast due to these or similar ocean conditions.
A high surf warning for the entire coast has been issued for this
threat and is in effect from 11PM Sunday to 11AM Tuesday, with
the highest risks once again at west to northwest facing beaches.

CAZ006-505-509-529-530-250500-
/O.CON.KMTR.SU.W.0002.211025T0600Z-211026T1800Z/
San Francisco-
Coastal North Bay Including Point Reyes National Seashore-
San Francisco Peninsula Coast-Northern Monterey Bay-
Southern Monterey Bay and Big Sur Coast-
146 PM PDT Sun Oct 24 2021

...HIGH SURF WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
11 AM PDT TUESDAY...

* WHAT...For the High Surf Warning, dangerously large breaking
  waves of 20 to 30 feet, greatly increased coastal run up,
  strong rip currents and longshore currents, and increased risk
  of minor coastal flooding in low lying areas.

* WHERE...Entire Pacific Coast from Sonoma to Monterey county.
  Highest risk at west to northwest facing beaches, including
  but not limited to: Ocean Beach, Montara State Beach, Half
  Moon Bay State Beach, Manresa State Beach, and Marina State
  Beach.

* WHEN...From 11 PM this evening to 11 AM PDT Tuesday.

* IMPACTS...Breaking waves can sweep people off jetties and
  docks, and into dangerous seas. Life-threatening swimming
  conditions and significant beach erosion can be expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

&&

$$



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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