A slow moving cutoff low was situated over southern Arizona, providing forced ascent. The low pressure resulted in very cold mid-level temperatures of -13C to -14C, which helped increase the instability with moderate to high levels observed (MLCAPE of 1000-2000 J/KG). High levels of moisture were also observed with PWAT ranging between 1-1.4, which is near record values for early October. The combination of all of these factors led to the development of strong to severe thunderstorms, developing initially across far southwestern Arizona during the early afternoon hours and then moving westward into Imperial County as the afternoon progressed. A well-organized outflow boundary surged well ahead of the thunderstorm complex, resulting in dense blowing dust, which traversed westward across the Imperial Valley and into the Salton Sea area. The blowing dust activity reached as far north as Joshua Tree National Park. Thunderstorms that moved into Imperial County resulted in areas of Flash Flooding along Ogilby Road.

High Wind in IMPERIAL VALLEY, CALIFORNIA
From 06-OCT-22 15:02:00 to 06-OCT-22 15:02:00 (PST-8)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A 61 mph gust was measured at the Imperial County Airport from thunderstorm outflow winds.

Dust Storm in IMPERIAL COUNTY WEST, CALIFORNIA
From 06-OCT-22 16:16:00 to 06-OCT-22 16:36:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibility near zero was reported near Salton City. No accidents or injuries were reported.

Dust Storm in IMPERIAL VALLEY, CALIFORNIA
From 06-OCT-22 15:02:00 to 06-OCT-22 15:22:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Visibility down to 100 yards reported in El Centro due to blowing dust. No accidents or injuries were reported.

Flash Flood in IMPERIAL, CALIFORNIA
From 06-OCT-22 14:40:00 to 06-OCT-22 16:40:00 (PST-8)
Location: CACTUS
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flash flooding along Ogilby Road near Indian Pass Road resulted in mud and gravel mult spots along the road. Timing estimated from radar. No injuries were reported.

High Wind in IMPERIAL VALLEY, CALIFORNIA
From 06-OCT-22 16:00:00 to 06-OCT-22 16:00:00 (PST-8)
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

A large downed tree blocked the area of Heber Road and Rockwood Road, requiring the use of barricades and a chainsaw to clean it up. Winds were estimated between 55-60 mph. No injuries were reported.

Dust Storm in IMPERIAL COUNTY SOUTHEAST, CALIFORNIA
From 06-OCT-22 14:02:00 to 06-OCT-22 14:22:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Visibility of less than a quarter mile reported along I-8 near Gordon's Well due to blowing dust/sand from thunderstorm outflow. No accidents or injuries were reported.

Dust Storm in IMPERIAL VALLEY, CALIFORNIA
From 06-OCT-22 15:10:00 to 06-OCT-22 15:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Video on social media showed visibility near zero in Calexico due to blowing dust. No accidents or injuries were reported.

Dust Storm in IMPERIAL VALLEY, CALIFORNIA
From 06-OCT-22 15:10:00 to 06-OCT-22 15:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Visibility less than 1/4 mile measured at the Imperial County Airport due to blowing dust.

Dust Storm in IMPERIAL VALLEY, CALIFORNIA
From 06-OCT-22 15:09:00 to 06-OCT-22 15:29:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Zero visibility reported in the area of Dogwood Road and East Keystone Road in El Centro due to blowing dust. No accidents or injuries were reported.

Dust Storm in SALTON SEA, CALIFORNIA
From 06-OCT-22 15:40:00 to 06-OCT-22 16:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

An Imperial Irrigation District Webcam showed visibility of less than 1/4 mile along southern portions of the Salton Sea due to blowing dust.