Hazardous Weather Outlook
Issued by NWS San Francisco Bay Area, CA

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FLUS46 KMTR 180520
HWOMTR

Hazardous Weather Outlook
National Weather Service San Francisco CA
920 PM PST Sat Feb 17 2018

CAZ006-505>513-516>518-528>530-181400-
San Francisco-
Coastal North Bay Including Point Reyes National Seashore-
North Bay Interior Valleys-North Bay Mountains-
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-
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-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast-
920 PM PST Sat Feb 17 2018

This hazardous weather outlook is for the San Francisco Bay Area
and Monterey Bay Area.

.DAY ONE...Saturday night

Mild weather conditions will continue with seasonal temperatures
overnight.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

A strong cold front is forecast to sweep across the region on
Sunday morning. This cold front will potentially result in the
following weather hazards:

* Locally strong and gusty west to northwest winds from Sunday
  afternoon through Monday. The strongest winds are expected near
  the coast where wind gusts up to 40 mph are possible. At this
  time winds are expected to remain just below wind advisory
  levels except perhaps at a few isolated windy spots along the
  coast.

* Most forecast models indicate the potential for post-frontal
  showers across portions of the region from Sunday night into
  Monday, mainly along coastal areas and in the Santa Cruz
  Mountains and Santa Lucia Mountains. Snow levels are forecast to
  drop as low as 1,500 feet on Sunday night and as low as 1,000
  feet on Monday, or perhaps even lower. The greatest potential
  for snow accumulation will be in the Santa Cruz Mountains where
  1 to 3 inches of snow accumulation is possible, and in the
  Santa Lucia Mountains of northwest Monterey County where 2 to 6
  inches of snowfall will be possible. Winter Weather Advisories
  may be issued once forecast confidence increases regarding snow
  amounts. All other mountain areas including the North Bay
  Mountains and East Bay Hills are expected to see no
  precipitation or just a dusting of snow.

* In wake of the frontal passage, one of the coldest air masses in
  recent years will settle in over the region. As winds subside
  Monday night into Tuesday morning, overnight temperatures will
  likely fall below freezing across most inland areas and
  potentially even in some coastal locations. A Freeze Watch is in
  effect for all inland portions of the San Francisco and Monterey
  Bay Areas late Monday night into Tuesday morning. Earlier it
  appeared that Tuesday night could be as cold, or even colder, as
  Monday night. However, recent models indicate that cloud cover
  will increase on Tuesday night ahead of another incoming weather
  system. That cloud cover should result in moderating
  temperatures on Tuesday night, except perhaps for the far
  southern portion of the region.

$$


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