October 1, 2026 12:27 AM

Gusty Winds could Play a Role in a Semi to Overturn on I-15 in Fontana

FONTANA, CA. (Pain In The Pass) >> A Santa Ana Wind event was creating dangerous driving conditions across the Interstate 15 freeway, flipping a semi tractor-trailer and forcing a Sig-Alert.

According to the California Highway Patrol, the big rig flipped onto its side just around 9:42am January 9, 2026, on southbound I-15 just before the Sierra Avenue exit.

The semi landed on the #1 and #2 lane with a passing sedan into the center divider with damage to the car.

Santa Ana winds were gusting over 50 mph in north San Bernardino and Fontana area.

A Sig-Alert was issued at 10:15am for 3 of 4 lanes to move the semi to the shoulder of the freeway.

The semi driver involved walked away with only minor injuries.

There are more ways to follow the Pain In The Pass. Join the Traffic Group on Facebook with over 169,000 members. Join the group on MeWe. Like us on the on Facebook. Follow us on Instagram, and also follow us on Threads, and X aka Twitter.

loader-image
Cajon Pass
12:27 am, Oct 1, 2026
temperature icon 66°F
clear sky
Humidity: 42 %
Pressure: 1010 mb
Wind: 4 mph
Wind Gust: 3 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 6:44 am
Sunset: 6:34 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
2:00 am
temperature icon
58°/63°°F 0 mm 0% 2 mph 41% 1011 mb 0 mm/h
5:00 am
temperature icon
58°/61°°F 0 mm 0% 1 mph 35% 1011 mb 0 mm/h
8:00 am
temperature icon
65°/65°°F 0 mm 0% 1 mph 21% 1013 mb 0 mm/h
11:00 am
temperature icon
81°/81°°F 0 mm 0% 5 mph 14% 1013 mb 0 mm/h
2:00 pm
temperature icon
86°/86°°F 0 mm 0% 7 mph 11% 1011 mb 0 mm/h
5:00 pm
temperature icon
84°/84°°F 0 mm 0% 8 mph 11% 1009 mb 0 mm/h
8:00 pm
temperature icon
70°/70°°F 0 mm 0% 3 mph 18% 1011 mb 0 mm/h
11:00 pm
temperature icon
66°/66°°F 0 mm 0% 5 mph 24% 1012 mb 0 mm/h