Sonoma County Under Health Advisory For Excessive Heat

SONOMA COUNTY, CA —Sonoma County Health Officer Dr. Tanya Phares extended a health advisory through 11 p.m. Thursday in response to the National Weather Service's excessive heat warning for the North Bay.

According to the National Weather Service, inland temperatures will range from the mid-90s to the 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. This prompted weather officials in to extend an excessive heat warning through 11 p.m. Friday.

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, tying its previous record from 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 Petaluma are expected to reach 97 on Thursday, 91 on Friday and 96 on Saturday.

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/.

Petaluma 7-Day Forecast

Thursday

Sunny and hot, with a high near 97. Calm wind becoming west 5 to 7 mph in the afternoon.

Thursday Night
Mostly clear, with a low around 56. Calm wind.

Friday
Mostly cloudy, then gradual clearing during the afternoon, with a high near 91. Calm wind becoming west 5 to 7 mph in the afternoon.

Friday Night
Mostly clear, with a low around 58. Light west wind.

Saturday
Sunny and hot, with a high near 96. Calm wind becoming west around 6 mph in the afternoon.

Saturday Night
Mostly clear, with a low around 59.

Sunday
Sunny, with a high near 93.

Sunday Night
Mostly clear, with a low around 55.

Monday
Sunny, with a high near 86.

Monday Night
Mostly clear, with a low around 50.

Tuesday
Sunny, with a high near 82.

Tuesday Night
Mostly clear, with a low around 51.

Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 82.