Sierra Nevada from Yosemite to Kings Canyon Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Fire Weather Warning
Issued: 3:27 AM PDT Sep. 25, 2018 – National Weather Service

... Red flag warning remains in effect until 5 PM PDT this
afternoon for low humidity and dry offshore winds for the East
Bay hills...

* affected area... the East Bay hills. Fire weather zone 511
which includes all locations above 1000 feet for the East Bay
and Diablo Range of Santa Clara County including Mt Hamilton.

* Wind... northeast winds 5 to 15 mph with gusts 20 to 30 mph.

* Humidity... 9 to 19%.

* Impacts... any fires that develop will likely spread rapidly.

Precautionary/preparedness actions...

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.