Costa Mesa Traffic and Road Conditions

Costa Mesa Traffic Map

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Traffic flow, road conditions and incident information
Traffic Flow Lines
Red/White dashed lines indicate a closed road.
Grey/White dashed lines indicate road work.
Red lines indicate heavy traffic flow.
Yellow/Orange lines indicate medium traffic flow.
Green lines indicate normal traffic flow.
Black lines or areas without visible traffic flow may indicate a road closure, limited vehicle activity, or a roadway where traffic flow is not currently monitored.
Traffic Incidents
Each map icon represents a traffic event or incident, such as road construction, a road closure (red circle with a white dash), or an accident.
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Please note:During extreme weather, flooding, accidents or other major incidents, traffic in Costa Mesa, CA may still appear as a green line even when individual lanes or an entire roadway is closed.

Costa Mesa Traffic Alerts

Police_activity 14.6 mi

Wrong way driver on I5 South at Brookhurst St

A vehicle is reported driving the wrong way on the off-ramp from I5 South at Brookhurst Street. Authorities are on the scene to address the situation.

I5 S / Brookhurst St Ofr Updated 2:38 AM
Closure 21.4 mi

Full closure on TL91 East at Orco Line

TL91 East is currently closed at Orco Line as crews prepare for a full freeway closure at Main. Expect significant delays in the area.

Tl91 E / Orco Line Updated 2:39 AM
Fire 23.2 mi

Brush and tree fire reported in East LA

A brush and tree fire has been reported on the northbound I710 just south of Alondra Blvd. Fire crews are on the scene addressing the situation.

I710 N / E Alondra Blvd Updated 2:05 AM
Hazard 27.2 mi

Hazard on I15 N near SR91

A Toyota RAV4 is blocking the second lane on northbound I15 just before the SR91 interchange. A tow truck is on the way.

I15 N NO / SR91 Updated 2:53 AM
Closure 27.6 mi

Fatality incident on TL 91 in Riverside

Eastbound TL 91 at Promenade Ave is closed due to a fatality incident. Traffic is being diverted, and multiple towing services are responding to the scene.

Tl91 E Wo / Promenade Ave Updated 2:13 AM
Collision 29.0 mi

Collision blocking offramp on SR-60

A black Hyundai Elantra lost control and hit a sign, blocking the offramp at Rosemead Blvd on SR-60 West. No injuries reported.

Sr60 W / Rosemead Blvd Updated 2:54 AM
Hazard 29.8 mi

Vehicle blocking Mission Blvd offramp

A vehicle is obstructing the bottom of the offramp from southbound SR71 to Mission Blvd. Towing is en route, but no visible damage has been reported.

Sr71 S / Mission Blvd Ofr Updated 2:49 AM
Collision 30.7 mi

Collision at Calzona St Off-Ramp

Northbound 5 at Calzona off-ramp has a reported collision. Emergency services are on the scene.

0 Calzona St Ofr Updated 2:12 AM
Collision 32.0 mi

Collision on I5 South near Soto St

Southbound I-5 is experiencing delays due to a white Nissan Altima blocking the left lanes after a solo vehicle crash. A tow truck is on the way to clear the scene. The driver appears to be under the influence, according to reports.

I5 S / Soto St Updated 2:44 AM
Hazard 34.3 mi

Flat tire causing hazard on I-10 East

A black Acura TL with a flat tire is in the general purpose lane on I-10 East near the 110 split. A tow is on the way.

I10 E / I10 E I110 N Con Updated 2:54 AM
Closure 34.5 mi

Multiple lane closures on I10 W at I110 N

Westbound I10 at the I110 interchange is experiencing lane closures due to a collision involving a red Mini Cooper and attenuator barrels. A tow truck is en route.

I10 W / I110 N I10 W Con Updated 2:29 AM
Collision 34.7 mi

Collision blocking lanes on NB 110

A pink Mercedes C300 and a black Honda Civic are blocking the middle lanes on the northbound 110 at the transition to the northbound 101. Units are working to clear the vehicles.

Sr110 N / Sr110 N Us101 S Con Updated 2:09 AM
Hazard 35.4 mi

Black Hyundai blocking lane on I5 South

A black Hyundai Tucson is partially blocking an unknown lane on I5 South. A tow is en route with an estimated arrival of 45 minutes or less.

I5 S / I5 S Sr110 N Con Updated 2:16 AM
Fire 37.6 mi

Fire Reported on I-10 West Near Fairfax

A fire is spreading rapidly under the overpass on westbound I-10 near Fairfax Ave. The on-ramp is being shut down as emergency crews respond to the scene.

I10 W / S FAIRFAX AVE Updated 2:28 AM
Closure 38.5 mi

Construction on I10 West near Cherry Ave

Westbound I10 is closed from Cherry Ave to Etiwanda until 5 AM due to construction work. Expect delays in the area.

I10 W / Cherry Ave Updated 2:18 AM
Closure 39.1 mi

SigAlert issued for WB I-10

A SigAlert has been issued for westbound I-10 at I-110, with the #1 through #4 lanes blocked for about an hour due to a crash.

Media Log Updated 2:34 AM
California State Official Traffic Resources:
CA DOT | Caltrans QuickMap | CHP Traffic Full Site | CHP Traffic Mobile Site
sources: Caltrans, CHP, Twitter
Alerts Last Updated: Sat, Sep 19th 02:04:12 AM

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National Traffic Forecast

 

Weekend Weather: Flooding Concerns and Record Heat Alerts for 09-18 to 09-20
Updated Fri Sep 18th 2026, 5:49am PDT

Get ready for a weekend of extreme weather conditions impacting your travel routes. The north-central U.S. will face heavy rain and flash flooding, impacting major roads through the Rockies, Plains, and Great Lakes. Meanwhile, scorching temperatures in the South-Central U.S. may break records, affecting highways in the region. Stay informed and plan your routes carefully.

Northern States Brace for Heavy Rain
Commuters traveling through the north-central U.S. should prepare for potential flash flooding along Interstate 94 and Interstate 90 over the weekend. Heavy rainfall is expected in areas like Minneapolis, MN and Chicago, IL as a system moves from the Rockies into the Great Lakes. Be cautious on roads like U.S. Highway 2 and U.S. Highway 12 as repeated storms could result in dangerous driving conditions by Saturday.
Southern States Under Heat Wave
In the South-Central U.S., particularly in cities like Dallas, TX and Houston, TX, high temperatures are expected to remain in the 90s to low 100s. The extreme heat could affect road conditions and vehicle performance on major highways like Interstate 10 and Interstate 35. Heat risks will persist through the weekend, so travelers should plan accordingly and stay hydrated.
Mid-Atlantic and Southeast Rain Concerns
Travelers in the Mid-Atlantic and Southeast should prepare for showers and thunderstorms along Interstate 95 and Interstate 85 as a frontal system moves through the weekend. Areas like Raleigh, NC and Atlanta, GA could see heavy rain, leading to slow travel. In Florida, particularly around Orlando, FL, excessive rainfall may cause delays on Interstate 4 and other local routes.
Monsoon Activity in the Southwest
In the Southwest, including cities like Phoenix, AZ and Albuquerque, NM, diminishing monsoonal activity will still bring isolated thunderstorms mainly in the afternoons. Commuters should be mindful of slick roads on highways like Interstate 40 and Interstate 17 over higher terrain on Saturday.

This live traffic and road conditions report is relevant for ZIP codes 92626, 92627, and 92628, accurately covering areas of Costa Mesa, CA.

Currently

Clear 70°F
29.93 inHg.
Barometer
76%
Humidity
S 7.9 mph
Wind
Clear

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