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Hot temperatures in the forecast prompt Spare the Air alert for Tuesday

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A biker rides on Midpeninsula Regional Open Space District's latest trail extension at the Ravenswood Preserve in East Palo Alto on Aug. 11, 2020.

The Bay Area Air Quality Management District issued a Spare the Air alert for smog on Tuesday. 

Hot inland temperatures in the June 21 forecast are expected to combine with motor vehicle exhaust to create increased concentrations of smog. 

The alert is the second so far this year.  Officials advise people to carpool or find alternatives to driving to reduce vehicle exhaust in the air. 

"As our roadways grow increasingly congested, it's important we all understand the significant health, quality of life and air quality impacts that can be attributed to driving," Sharon Landers, interim executive officer of the Air District, said in a statement. 

High temperatures are returning to Bay Area and are expected to peak over the next two days, prompting the National Weather Service to issue a heat advisory for much of the day in many inland areas. 

The high temperatures are expected to last until Thursday, with the hottest conditions running from Tuesday into Wednesday, according to the National Weather Service. 

There will be a moderate to high risk level for heat, primarily in the inland areas, and the heat advisory is expected to run from 10 a.m. to 10 p.m. Tuesday, according to the weather service. The highs will be in the 90s, with temperatures reaching as high as 105 degrees in the hottest areas. People are advised to stay hydrated and seek shelter from the heat, if possible.  

Officials also suggest completing strenuous activity in the morning, when ozone concentrations are lower because high concentrations can cause congestion, throat irritation and chest pains. It can also trigger illnesses like asthma and is harmful to those with heart and respiratory conditions. 

People receive notifications about Spare the Air alerts by registering for emails at sparetheair.org, downloading the Spare the Air smartphone app for iPhone or Android, finding Spare the Air on Facebook, Twitter or calling 800-HELP-AIR (4357-247).

Current Weather

Sunny

Sunny

69°F

UV Index
0 Low
Pressure
30.02 Steady
Visibility
10 miles
Dewpoint
47 °F
Humidity
46%
Wind
NW 3.8 mph
Gust
9.4 mph
Wind Chill
69 °F

12 Hour Forecast

Today
8 PM
70°F
Mostly sunny
Today
9 PM
66°F
Mostly clear
Today
10 PM
62°F
Mostly clear
Today
11 PM
59°F
Mostly clear
Tomorrow
12 AM
58°F
Mostly clear
Tomorrow
1 AM
57°F
Mostly clear
Tomorrow
2 AM
57°F
Cloudy
Tomorrow
3 AM
56°F
Cloudy
Tomorrow
4 AM
56°F
Cloudy
Tomorrow
5 AM
55°F
Cloudy
Tomorrow
6 AM
54°F
Mostly cloudy
Tomorrow
7 AM
56°F
Mostly cloudy

7 Day Forecast

Sunny

Tuesday

82 °F

Brilliant sunshine


Intermittent clouds

Tuesday Night

54 °F

Mainly clear early, then areas of low clouds forming


Mostly sunny

Wednesday

73 °F

Sunny to partly cloudy and cool


Intermittent clouds

Wednesday Night

53 °F

Partly cloudy in the evening followed by areas of low clouds late


Partly sunny

Thursday

71 °F

Cool with clouds giving way to sun


Mostly cloudy

Thursday Night

55 °F

Areas of low clouds


Intermittent clouds

Friday

66 °F

Low clouds giving way to sunshine and cool


Mostly cloudy

Friday Night

56 °F

Areas of low clouds


Mostly cloudy

Saturday

67 °F

Sun and areas of low clouds and cool


Intermittent clouds

Saturday Night

54 °F

Partly cloudy


Sunrise and Sunset

Sunrise
5:50 AM
Sunset
8:34 PM

Based on AccuWeather data