Excessive Heat Warning Extended For Healdsburg, Sonoma County

SONOMA COUNTY, CA — With high temperatures expected for the foreseeable future in the North Bay, Sonoma County Health Officer Dr. Tanya Phares extended a health advisory through 11 p.m. Thursday.

The National Weather Service extended its excessive heat warning for Sonoma County's interior valley and coastal ranges through 11 p.m. Friday. Interior temperatures will range from the mid-90s to low 100s, regions close to the coast will range from the upper 70s to mid-80s, and regions directly along the coast will range from the upper 60s to mid-70s.

Wednesday in the North Bay, Napa reached 103 degrees, breaking an Oct. 2 heat record of 102 set on Oct. 2, 1980. Meanwhile, San Rafael reached 106 degrees, which tied with its record set on Oct. 2, 1980.

According to information shared on Socoemergency.org/heat, extreme heat generally results in the highest death rate among weather-related hazards. In most of the United States, extreme heat is defined as an extended period —2-3 days— of intense heat and humidity with temperatures above 90 degrees. In extremely hot conditions, evaporation slows down and the body has to work harder to maintain a normal temperature. This can lead to death for pushing the human body beyond its limits.

High temperatures in Healdsburg are expected to reach 98 on Thursday and 94 on Friday.

Residents should remember that:

• Extreme heat can strike quickly and without warning.
• Older adults, children, and people who are sick or overweight are at greatest risk from extreme heat.
• Humidity increases the wind chill measured by a set heat index.

If You Are Under An Extreme Heat Warning

• Go to an air-conditioned room.
• Avoid strenuous activities.
• Be on the lookout for heat illness.
• Wear light clothing.
• Check how your relatives and neighbors are.
• Drink a lot of water.
• Be on the lookout for heat cramps, exhaustion, and heat stroke.
• Never leave children or pets alone in closed vehicles.

See updates on heat conditions from the National Weather Service Monterey San Francisco Office at weather.gov/mtr/. at Weather.gov/mtr/.

Healdsburg 7-Day Forecast

Wednesday Night
Mostly clear, with a low around 60. North wind 5 to 7 mph becoming south after midnight.

Thursday
Sunny and hot, with a high near 98. Light and variable wind becoming south southwest 6 to 11 mph in the afternoon.

Thursday Night
Mostly clear, with a low around 57. Light and variable wind.

Friday
Mostly sunny, with a high near 94. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

Friday Night
Mostly clear, with a low around 59. West northwest wind around 5 mph becoming calm after midnight.

Saturday
Sunny and hot, with a high near 99.

Saturday Night
Mostly clear, with a low around 60.

Sunday
Sunny and hot, with a high near 96.

Sunday Night
Mostly clear, with a low around 55.

Monday
Sunny, with a high near 92.

Monday Night
Mostly clear, with a low around 51.

Tuesday
Sunny, with a high near 87.

Tuesday Night
Mostly clear, with a low around 51.

Wednesday
Mostly sunny, with a high near 85.