Changeable Message Signs

All Roadway message signs (511, Traffic Status, Amber Alerts) located on the State Highway Network.

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I-405

Hawthorne

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-405

Lawndale

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-10

Santa Monica

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-91

Carson

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

US-101

Studio City

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

US-101

Sherman Oaks

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Los Angeles

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-110

Los Angeles

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-60

Los Angeles

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

US-101

Encino

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

US-101

Los Angeles

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-710

Los Angeles

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

Los Angeles

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Los Angeles

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-91

Long Beach

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Westbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

US-101

Los Angeles

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Norwalk

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Westbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

Van Nuys

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

Los Angeles

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-10

Santa Monica

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

Culver City

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-110

Carson

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-405

Long Beach

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-405

Torrance

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-5

Glendale

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-5

Downey

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-110

Gardena

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-5

Los Angeles

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-60

Monterey Park

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-605

Norwalk

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-110

Los Angeles

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-5

Los Angeles

Northbound

MINUTES TO
RTE 134..... 6
RTE 118..... 20

Last updated on 10/9/2026, 7:01:36 AM

I-405

Carson

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

Carson

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-710

Compton

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-710

Long Beach

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-57

Diamond Bar

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-170

North Hollywood

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-134

Los Angeles

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

Los Angeles

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

Alhambra

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Sylmar

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Valencia

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-105

Downey

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-105

Los Angeles

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-105

Hawthorne

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-105

Lynwood

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-105

Downey

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

South El Monte

Eastbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-105

Los Angeles

Westbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-105

Inglewood

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

US-101

Thousand Oaks

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Pacoima

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-110

Los Angeles

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-110

Los Angeles

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-10

Los Angeles

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-91

Cerritos

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-91

Compton

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

Baldwin Park

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-60

Hacienda Heights

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-605

Santa Fe Springs

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-134

Burbank

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-110

Los Angeles

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-605

Whittier

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-10

Pomona

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-210

Pasadena

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-210

La Canada Flintridge

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Newhall

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-605

Hawaiian Gardens

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-14

Newhall

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-710

Bell

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

US-101

Los Angeles

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-60

Rowland Heights

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-10

Covina

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-210

Glendora

Eastbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-60

South El Monte

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-210

Azusa

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Pacoima

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-118

Granada Hills

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-605

Baldwin Park

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-134

Glendale

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

Inglewood

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-210

La Verne

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Castaic

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

North Hills

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-2

Los Angeles

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-2

Los Angeles

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

US-101

Newbury Park

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

US-101

Ventura

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

US-101

Ventura

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-210

Sylmar

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-14

Palmdale

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-14

Newhall

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Lebec

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-5

Lebec

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

US-101

Woodland Hills

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-2

Valyermo

Westbound

ANGELES CRST HWY
CLOSED AT
UPPER TUJUNGA

Last updated on 10/9/2026, 7:01:36 AM

SR-57

Diamond Bar

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-57

Diamond Bar

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-57

San Dimas

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-57

San Dimas

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

US-101

Calabasas

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

US-101

Calabasas

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-23

Moorpark

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-110

Torrance

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-710

Long Beach

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-118

Moorpark

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-118

Simi Valley

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

Los Angeles

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-90

Marina Del Rey

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-210

Monrovia

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

Los Angeles

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-710

Compton

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-710

Compton

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-710

Compton

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Los Angeles

Northbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

I-5

Los Angeles

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-2

Glendale

Eastbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

US-101

Ventura

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-110

Gardena

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-110

Gardena

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-126

Valencia

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-210

La Canada Flintridge

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-710

Monterey Park

Southbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-710

Monterey Park

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-210

Monrovia

Westbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-210

Pasadena

Eastbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Norwalk

Southbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-118

Simi Valley

Westbound

‍

This sign is blank.

‍

Last updated on 10/9/2026, 7:01:36 AM

SR-14

Newhall

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

SR-14

Canyon Country

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Sun Valley

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Newhall

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-5

Granada Hills

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM

I-405

Van Nuys

Northbound

EXTREME HEAT
STAY COOL
DRIVE SAFE!

Last updated on 10/9/2026, 7:01:36 AM