Dense Fog in Arizona

Events

109

Deaths

2

Injuries

10

Damage

$50,000

• Dense Fog in Arizona, January 14, 20152 deaths · 2 injured · $50,000 · 3 eventsOn the morning of January 14th, considerable low level moisture lingered across the south central deserts following the passage of a wet winter weather system. Clear skies and light winds allowed areas of dense fog to develop, primarily across portions of western Pinal county.
• Lightning Strike and Dense Fog in Arizona, December 7 to 15, 19981 death · 3 injured · 2 eventsDense fog with visibility near zero was blamed on a 30-vehicle accident on I-10 near Sun Lakes.
• Dense Fog in Arizona, March 1, 20018 injured · 1 eventDense fog was reported over much of south central Arizona around sunrise. Three fog-related accidents left 8 people hurt near the intersection of Arizona 347 and Arizona 238 just north of the town of Maricopa.
• Flash Flooding and Flood in Arizona, October 1 to 22, 1997$30,000 · 1 in hail · 6 eventsThunderstorms dumped between 2-3 inches of rain over the western portion of Nogales causing flash flooding that damaged about 100 homes and 30 businesses. The flooding forced the evacuation of 150 residents from their homes.
• Flash Flooding and Heavy Rain in Arizona, January 4 to 8, 20161 injured · $4,000 · 6 eventsA series of three Pacific storms impacted the desert Southwest, bringing periods of heavy rain, heavy snow, and locally dense fog.
• Dense Fog in Arizona, December 4 to 12, 202212 eventsSignificant 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.
• Dense Fog in Arizona, December 4 to 9, 201411 eventsWidespread light to moderate rain (over two inches in places) over a two day period (December 4-5) was followed by a large area of high pressure. This created inversions that lead to the widespread development of fog and often dense fog.
• Dense Fog in Arizona, December 24, 202311 eventsThe 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.
• Dense Fog in Arizona, December 10 to 15, 20045 eventsDense fog formed in the Little Colorado River Valley, Chinle Valley, and portions of the White Mountains between December 10th and December 15th. The visibility was less than 1/4 mile across large areas for portions of the period.
• Dense Fog in Arizona, February 1, 20154 eventsA very wet Pacific weather system brought significant precipitation to Arizona on Friday January 31st and then moved off to the east. Ample lingering surface based moisture combined with clearing skies and light winds to produce widespread dense fog across south central Arizona.
• Heavy Snow and Hail in Arizona, December 1 to 21, 19971 in hail · 3 events6-8 inches of snow was reported at Kitt Peak.
• Dense Fog in Arizona, October 29, 20043 eventsWidespread dense fog covered portions of Southeast Arizona, including the Tucson Metro Area. An NWS meteorologist on duty at the time reported that the visibility was down to 1/10 of a mile at the NWS Tucson office, located on the University of Arizona.
• Dense Fog in Arizona, October 29, 20043 eventsFollowing a widespread rain event the day before, dense fog began to develop in the early morning hours over the low deserts of south central Arizona. The fog began to dissipate about 8 am MST.
• Dense Fog in Arizona, September 20, 20183 eventsHigh morning humidity combined with generally clear skies and light winds to allow for the formation of dense fog during the morning hours across the lower deserts southeast of Phoenix.
• Dense Fog in Arizona, December 11, 20203 eventsBoundary layer moisture remained elevated across the central deserts during the morning hours on December 11th following the passage of a wet winter storm system.
• Dense Fog in Arizona, January 11 to 12, 19982 eventsDense fog with visibilities less than 1/4 mile were reported by spotters and sheriff dispatch.
• Flood and Dense Fog in Arizona, November 28 to 29, 19982 eventsLocally heavy rain resulted in street flooding in parts of the city. Barricades were used in some intersections. One of the heaviest amounts was .38 in just 25 minutes.
• Dense Fog in Arizona, December 13, 20142 eventsAnother storm system brought locally high winds, rain and snow, and patchy dense fog to the Mojave Desert and southern Great Basin.
• Heavy Snow and Dense Fog in Arizona, February 22 to 23, 20152 eventsA cold storm system brought snow to lower elevations of the Mojave Desert and southern Great Basin.
• Dense Fog in Arizona, December 8, 20182 eventsShowers occurred the previous day across portions of the lower southern deserts, adding moisture to the lower levels of the atmosphere.
• Dense Fog in Arizona, January 16, 20192 eventsSignificant rains occurred over the central deserts on January 15th, resulting in some urban flooding as well as an episode of flash flooding over western Maricopa County during the afternoon.
• Dense Fog in Arizona, January 7, 20192 eventsHumidity was high across the south-central deserts, including the greater Phoenix area, during the morning hours on January 7th, and conditions were favorable for the formation of fog.
• Dense Fog in Arizona, December 12, 20202 eventsBoundary layer moisture was high across the deserts of southwest Arizona following the passage of a wet winter weather system that moved across the state.
• Dense Fog in Arizona, December 25, 20212 eventsFollowing widespread 1 to 2 inches of rain on Christmas Eve, dense fog developed in parts of the Greater Phoenix Area in the morning of Christmas Day, particularly in the southwest and far southeast parts of the metro. No reports of ground traffic being impacted were found.
• Dense Fog in Arizona, January 14, 19981 eventDense fog reported by sheriff deputies between Tombstone and Willcox.

Dense Fog everywhereEvery kind of event in Arizona

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 2026-09-24.