Red Flag Warning issued July 2 at 10:59AM PDT until July 5 at 5:00AM PDT by NWS San Francisco CA
…CRITICAL FIRE WEATHER CONDITIONS NOW INTO FRIDAY…
.North-northeast winds have developed overnight across the ridges
of North Bay and East Bay, Santa Cruz Mountains, along with the
Marin and Sonoma Coastal Ranges. Dry, offshore winds will persist
Monday evening through Tuesday evening over all these areas, and
continue through Thursday afternoon across the North Bay interior
mountains, which will result in elevated fire weather concerns.
Gusts of 30 to 40 mph will be possible across ridgetops and
higher peaks. Many areas that may see lower wind speeds will
still be critically dry and very hot. This combined with near
historically dry 10 and 100 hour fuels will undoubtedly present
very dangerous fire weather conditions.
* AFFECTED AREA…Fire Weather Zone 502 Marin Coastal Range,
Fire Weather Zone 503 Sonoma Coastal Range, Fire Weather Zone
504 North Bay Interior Mountains, Fire Weather Zone 512 Santa
Cruz Mountains and Fire Weather Zone 515 East Bay Hills.
* TIMING…Until 5 AM Friday.
* WINDS…West 10 to 15 mph with gusts up to 30 mph.
* RELATIVE HUMIDITY…As low as 10 percent.
* TEMPERATURES…Up to 106.
* IMPACTS…Critical fire weather conditions. Increased chance
for fire starts in dry, open grasses. Outdoor burning and
especially fireworks are not recommended.
A Red Flag Warning means that critical fire weather conditions
are either occurring now…or will shortly. A combination of
strong winds…low relative humidity…and warm temperatures can
contribute to extreme fire behavior.
