The combination of moist boundary layer conditions due to rainfall activity 36-48 hours prior and clear skies and near calm winds resulted in the development of widespread dense fog conditions during the early through mid-morning hours on the 24th. Many areas in the Phoenix metro area as well as southward into Pinal County reported visibilities of a quarter mile or less. Phoenix Sky Harbor Airport at one point had to perform a ground stop due to the low visibility.

Dense Fog in NORTHWEST PINAL COUNTY, ARIZONA
From 24-DEC-23 03:55:00 to 24-DEC-23 10:35:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of less than a quarter mile observed at the Ak-Chin Regional Airport in Casa Grande due to dense fog.

Dense Fog in NORTHWEST PINAL COUNTY, ARIZONA
From 24-DEC-23 05:20:00 to 24-DEC-23 09:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of less than a quarter mile observed at the Casa Grande Municipal Airport due to dense fog.

Dense Fog in EAST VALLEY, ARIZONA
From 24-DEC-23 07:05:00 to 24-DEC-23 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibility of near quarter mile reported in the area of North Alma School Road and East Ray Road in Chandler due to dense fog.

Dense Fog in EAST VALLEY, ARIZONA
From 24-DEC-23 07:12:00 to 24-DEC-23 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibility of near a quarter mile reported in the area of South Driftwood Avenue and West Folley Street near Loop 202 in Chandler due to dense fog.

Dense Fog in EAST VALLEY, ARIZONA
From 24-DEC-23 07:14:00 to 24-DEC-23 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of near a quarter mile reported at Chandler Municipal Airport due to dense fog.

Dense Fog in SOUTHEAST VALLEY/QUEEN CREEK, ARIZONA
From 24-DEC-23 07:30:00 to 24-DEC-23 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibility of near a quarter mile reported in the area of South McQueen Road and East Chandler Heights Road in Chandler due to dense fog.

Dense Fog in CENTRAL PHOENIX, ARIZONA
From 24-DEC-23 07:53:00 to 24-DEC-23 08:25:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Visibility of near a quarter mile reported at Phoenix Sky Harbor Airport due to dense fog.

Dense Fog in EAST VALLEY, ARIZONA
From 24-DEC-23 08:15:00 to 24-DEC-23 08:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibility of near a quarter mile reported near the area of Arizona State University in Tempe due to dense fog.

Dense Fog in EAST VALLEY, ARIZONA
From 24-DEC-23 08:30:00 to 24-DEC-23 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Visibility of near a quarter mile reported in the Dobson Woods area in Mesa due to dense fog.

Dense Fog in BUCKEYE/AVONDALE, ARIZONA
From 24-DEC-23 09:47:00 to 24-DEC-23 10:47:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of near a quarter mile reported at the Goodyear Airport due to dense fog.

Dense Fog in SOUTH MOUNTAIN/AHWATUKEE, ARIZONA
From 24-DEC-23 08:45:00 to 24-DEC-23 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibility of near a quarter mile observed at the intersection of 32nd street and Ray Road in Ahwatukee due to dense fog.