Significant boundary layer moisture was present across most of the area, especially across most of south-central Arizona, due to the rainfall event that occurred during the 3rd and 4th, which resulted in wet soils. The moisture present combined with clearing skies and nearly calm winds led to temperatures to cool enough that near ground-level saturation was reached.
Every event with a place to put it; 12 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PSR wrote it up.
Significant boundary layer moisture was present across most of the area, especially across most of south-central Arizona, due to the rainfall event that occurred during the 3rd and 4th, which resulted in wet soils. The moisture present combined with clearing skies and nearly calm winds led to temperatures to cool enough that near ground-level saturation was reached. This resulted in the development of widespread dense fog with many weather stations as well as the public reporting visibilities of a quarter of a mile or less at times from the evening of the 4th through morning hours of the 5th.
The national radar mosaic for the moment the first event began.
12 dense fog. Local standard time, as filed.
Visibility of less than 1/4 mile was reported at the Casa Grande Municipal Airport from dense fog. No accidents or injuries were reported.
Visibility of less than 1/4 mile was reported at the Coolidge Municipal Airport from dense fog. No accidents or injuries were reported.
Visibility of less than 1/4 mile reported at the Buckeye Municipal Airport from dense fog. No accidents or injuries were reported.
Visibility of 1/4 mile was reported at Phoenix Sky Harbor Airport from dense fog. No accidents or injuries were reported.
Visibility of less than 1/4 mile reported at the Scottsdale Airport from dense fog. No accidents or injuries were reported.
Visibility of less than 1/4 mile reported in the area of Paradise Valley from dense fog. No accidents or injuries were reported.
Visibility of around 1/4 mile reported at the Mesa-Falcon Field Airport from dense fog. No accidents or injuries were reported.
Visibility of less than 1/4 mile reported in Apache Junction from dense fog. No accidents or injuries were reported.
Visibility of less than 1/4 mile was reported in the area of McDowell Road near Indian Bend Wash from dense fog. No accidents or injuries were reported.
Visibility of less than 1/4 mile reported in the area of Baseline and Cooper Roads from dense fog. No accidents or injuries were reported.
Visibility of 1/4 mile reported at the Deer Valley Municipal Airport from dense fog. No accidents or injuries were reported.
Visibility as low as 300-400 yards was reported in Yuma from dense fog. No accidents or injuries were reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2022Every state in 2022This day in weather historyWarnings in Arizona, December 2022
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1072099, 1072100, 1072104, 1072103, 1072105, 1072106, 1072109, 1072101, 1072108, 1072111, 1072107, 1072098.