RED FLAG WARNINGS & WIND ADVISORY - Updated 10.26.20 at 9:30 a.m.
**RED FLAG WARNING – NORTH BAY VALLEYS – IN EFFECT FROM 8 PM SUNDAY TO 5 PM MONDAY**
***RED FLAG WARNING – NORTH BAY MOUNTAINS – IN EFFECT FROM 11 AM SUNDAY TO 5 PM TUESDAY***
****WIND ADVISORY IN EFFECT FROM 4 PM SUNDAY THROUGH 11AM MONDAY FOR SONOMA COUNTY AND ALL OF SANTA ROSA****
Red Flag Warnings
NORTH BAY VALLEYS & NORTH BAY MOUNTAINS
The National Weather Service (NWS) has issued:
- A Red Flag Warning for North Bay Interior Valleys for strong winds and critically low humidity, which is in effect from 8 p.m. Sunday (10/25) to 5 p.m. Monday (10/26).
- A Red Flag Warning for North Bay Mountains for strong winds and critically low humidity, which is in effect from 11 a.m. Sunday (10/25) to 5 p.m. Tuesday (10/27).
RELATIVE HUMIDITY: Minimum daytime humidity of 5 to 10 percent. Maximum overnight humidity generally between 15 and 25 percent.
HIGHEST THREAT: Highest ridges and peaks of the interior North Bay Mountains and the Diablo Range.
IMPACTS: Any fires that develop will likely spread rapidly. Outdoor burning should be avoided.
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.
The National Weather Service has issues a Wind Advisory in effect from 4 p.m. Sunday (10/25) through 11 a.m. Monday (10/26) for Sonoma County and all of Santa Rosa.
|WHAT||Northeast winds 20 to 35 mph with gusts up to 50 mph likely in the lower elevations. In the hills northeast winds 25-35 mph with gusts 60-70 mph for the highest peaks of the North and East Bay hills|
|WHERE||The entire San Francisco Bay Region.|
|IMPACTS ||Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.|
|ADDITIONAL DETAILS |
In addition to fire weather concerns these winds will have the potential to bring down fire weakened trees and branches across the region. Any temporary structures such as tents and scaffolding will be compromised. This event has the potential to be as strong or stronger as winds during the 2017 wine country fires with widespread potential for damaging winds throughout the Bay Area Sunday night.
Businesses participating in outdoor dining should make preparations to secure lose items and temporary structures.
Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds
National Weather Service Updates
For most up-to-date weather information from the National Weather Service, visit: https://www.weather.gov/mtr/
City of Santa Rosa Preparedness Information