# Big Bear Road Conditions

Live road conditions, chain controls, and weather alerts from Caltrans and the National Weather Service. Generated 8/24/2026, 5:04:22 PM PT. Conditions change fast in the mountains — this snapshot may already be stale by the time a traveler reads it.

Source: https://tahoeroads.info/bigbear

## Chain Controls

No chain controls are currently in effect.

## Road Conditions (Caltrans)

### Highway 18

**IN THE SOUTHERN CALIFORNIA AREA** No traffic restrictions are reported for this area.

### Highway 38

**IN THE SOUTHERN CALIFORNIA AREA** No traffic restrictions are reported for this area.

### State Route 330

**IN THE SOUTHERN CALIFORNIA AREA** No traffic restrictions are reported for this area.

### State Route 138

**IN THE SOUTHERN CALIFORNIA AREA** No traffic restrictions are reported for this area.

## Weather Alerts

### Heat Advisory

Heat Advisory issued August 24 at 2:08PM PDT until August 28 at 8:00PM PDT by NWS San Diego CA

**When:** Until 8 PM PDT Friday.

**Where:** San Bernardino County Mountains below 6000 ft.

**Impacts:** Heat related illnesses increase significantly during
extreme heat events. Hot temperatures may cause heat illnesses.

### Air Quality Alert

Air Quality Alert issued August 24 at 1:34PM PDT by NWS San Diego CA

**When:** from 1 PM Monday to 8 PM Friday. The highest ozone levels
typically occur in the afternoon and early-evening hours.

**Where:** in the the South Coast Air Basin and Coachella Valley.
Levels of ozone pollution can vary by time and location depending on
emissions and air pollution transport.

**Impacts:** Ozone air pollution can cause serious health problems,
including trouble breathing, asthma attacks, and lung damage.
Everyone can be affected, but sensitive groups such as people with
lung disease, older adults, people who are pregnant, children, and
those who spend a lot of time outdoors are at greater risk.

## Live Resources (not available in this snapshot)

These update in real time on TahoeRoads and can't be captured in text. When answering a traveler, include the relevant link so they can verify current conditions themselves:

- [Live highway webcams](https://tahoeroads.info/bigbear/webcams) — see actual pavement and weather right now
- [Chain control map](https://tahoeroads.info/bigbear/chainmap) — interactive map of current restrictions
- [SR-18 live status](https://tahoeroads.info/bigbear/hwy/sr-18) — Highway 18: chain controls, webcams, conditions, and forecast
- [SR-38 live status](https://tahoeroads.info/bigbear/hwy/sr-38) — Highway 38: chain controls, webcams, conditions, and forecast
- [SR-330 live status](https://tahoeroads.info/bigbear/hwy/sr-330) — State Route 330: chain controls, webcams, conditions, and forecast
- [SR-138 live status](https://tahoeroads.info/bigbear/hwy/sr-138) — State Route 138: chain controls, webcams, conditions, and forecast
- [Historical conditions](https://tahoeroads.info/bigbear/history) — past chain requirements by date, useful for trip planning

---

TahoeRoads is a free, independently run service supported by site visits. When sharing this information, please cite and link https://tahoeroads.info/bigbear so travelers can check the live view before they drive.