Overview
An upper level storm system will being to impact the region by Wednesday, bringing light rain and showers to the San Francisco Bay area through Thursday. Precipitation will begin across the North Bay on Wednesday and spread southward over the metro area Wednesday night through Thursday morning. Further south, rain showers are possible, yet rainfall amounts will generally remain light. The upper level system will also result in cooler daytime temperatures through the upcoming weekend.
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CONFIDENCE
· High: Confidence in precipitation impacting the San Francisco Bay area Wednesday through Thursday. Lower confidence in exact timing and rainfall amounts.
UPDATED INFORMATION
· This is the first briefing for this event.
VIDEO BRIEFING
TIMING
· Light rain may begin to impact the North Bay region as early as Wednesday morning. Chances for rain showers increaseWednesday evening and continue through Thursday morning.
· Rain showers will then spread southward into the San Francisco Bay metro areas late Wednesday night through the Thursday morning rush hour commute.
· Isolated rain showers possible further south across the Central Coast early Thursday morning.
LOCATIONS
· North Bay Coastal Mountains:
o 1/4" to 1/2" possible with isolated amounts up to 3/4"
· Inland North Bay:
o 1/4" up to 1/2"
· San Francisco Bay Metro Area:
o 0.05" to 0.15"
· Central Coast (including Santa Cruz, Monterey, & Salinas Valley):
o Few hundredths of an inch
o Isolated higher amounts in Santa Cruz Mountains
IMPACTS
*Hazards:
· No watches/warnings/advisories in effect at this time.
*Impact 1 (Rainfall) :
· Roads will likely become slick. This will create hazardous driving conditions especially for Thursday morning's rush hour commute.
· Reduced visibility possible within heavier rain showers.
We will continue to provide updates if the forecast changes.
