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Overview
A late season Pacific storm system remains on track to impact the San Francisco/Monterey Bay area tonight through Tuesday night. This system will bring locally heavy rainfall, thunderstorms with gusty winds and small hail, and possible accumulating snowfall to elevations above 4,000 feet. |
FORECAST CONFIDENCE
- High: Overall storm
system and widespread rainfall.
- Low: Accumulating snowfall across the Santa Lucia Range.
TIMING
- Light rain will begin
across the North Bay late this evening and will spread southward/inland
overnight into early Tuesday morning. The heaviest precipitation will
likely occur just ahead of and along the frontal boundary as it pushes
inland early Tuesday morning.
- Thunderstorm potential
will be greatest late Tuesday morning through Tuesday afternoon.
LOCATIONS
- This system will impact
all portions of the region tonight through Tuesday night.
IMPACTS
*Current Watches/Warnings/Advisories:
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*Impact 1 (Rain) :
· The greatest rainfall
amounts will occur across the North Bay and coastal ranges down the coast
through Tuesday night where 0.75" to 2" will be possible. Higher
amounts cannot be ruled out across the higher elevations. Meanwhile, most urban
areas can expected anywhere from 0.25" to 1" from this system.
*Impact 2 (Thunderstorms and Small
Hail):
· A more unstable
atmosphere will lead to possible thunderstorms with small hail and strong,
gusty winds on Tuesday.
*Impact 3 (Snow Accumulations):
· Snow will likely
accumulate for locations above 4000 feet especially the Santa Lucia Range in
Monterey County early Tuesday with several inches possible by Tuesday
night.
*Impact 4 (Wind):
· Southwesterly winds
will increase through tonight as the cold front approaches. Winds of 15 to
25 mph with local gusts over 35 mph are possible for urban areas. Higher
elevation locations could see gusts approaching 50 mph. Wind speeds will
then diminish in wake of the frontal passage Tuesday.
