1,237 first-hand accounts of flood events in Arizona, ranked by impact. Each is a NOAA-written narrative of the moment.
A large mesoscale convective system formed over northern Mexico and moved north into Arizona. This feature produced severe weather in southern Arizona and a large haboob dust storm that tracked all the way into southern Yavapai County.
Read the full account →An exceptionally strong Pacific storm system impacted southeast Arizona, producing a wide variety of weather. Widespread heavy valley rain and higher elevation snow affected all of southeast Arizona.
Read the full account →Similar to the 20th, thunderstorms once again initiated across the northern Arizona high terrain during the afternoon of the 21st, though more focused along the Mogollon Rim compared to the day prior.
Read the full account →Thunderstorms on the 19th initiated across southeast Arizona and along the Mogollon Rim during the late morning/early afternoon hours before pushing into the lower elevations of south-central Arizona.
Read the full account →Outflow boundaries originating from distant thunderstorms converged on the valley floor during the evening hours. This combined with a pocket of upper-level divergence as analyzed by the SPC mesoanalysis resulted in the development of a strong thunderstorm over Chandler.
Read the full account →A trough of low pressure moving eastward across California brought a plume of deep moisture to Arizona as well. The synoptic-scale ascent from the trough combined with the moisture allowed for periods of heavy rain over Arizona March 15 and 16.
Read the full account →A trough of low pressure moving eastward across California brought a plume of deep moisture to Arizona as well. The synoptic-scale ascent from the trough combined with the moisture allowed for periods of heavy rain over Arizona March 15 and 16.
Read the full account →A trough of low pressure moving eastward across California brought a plume of deep moisture to Arizona as well. The synoptic-scale ascent from the trough combined with the moisture allowed for periods of heavy rain over Arizona March 15 and 16.
Read the full account →A trough of low pressure moving eastward across California brought a plume of deep moisture to Arizona as well. The synoptic-scale ascent from the trough combined with the moisture allowed for periods of heavy rain over Arizona March 15 and 16.
Read the full account →A trough of low pressure moving eastward across California brought a plume of deep moisture to Arizona as well. The synoptic-scale ascent from the trough combined with the moisture allowed for periods of heavy rain over Arizona March 15 and 16.
Read the full account →A trough of low pressure moving eastward across California brought a plume of deep moisture to Arizona as well. The synoptic-scale ascent from the trough combined with the moisture allowed for periods of heavy rain over Arizona March 15 and 16.
Read the full account →Abundant moisture combined with terrain features allowed for isolated thunderstorms capable of producing locally heavy rainfall to developed across parts of southern Gila County during the late afternoon and early evening hours on the 30th.
Read the full account →A line of thunderstorms moved northeastward through the Tucson Metro area causing damage to a roof, tree branches downed, and a palm tree uprooted.
Read the full account →Surface high pressure migrated slightly to the northeast and was positioned over southwest Colorado. An inverted trough moved through southeast Arizona from the east, inducing easterly flow.
Read the full account →Widespread rain, heavy at times, resulted in numerous flooded streets, and low spots. Strong winds associated with a line of thunderstorms caused considerable damage to property and some minor injuries.
Read the full account →A prominent ridge was in place over the center United States, with very moist air in place over southern Arizona. Precipitable water values were near 2 inches. Weak upper level flow caused storms to move slowly.
Read the full account →A slow moving winter storm delivered heavy snow to the mountains of southeast Arizona January 15 through 17. Snow amounts in the high terrain above 7000 ft totaled 1 to 2 feet.
Read the full account →The center of an area of high pressure was located near the Four Corners, a near |perfect location for the monsoon moisture to continue spreading over northern Arizona. This brought the continuation of daily afternoon and evening showers and thunderstorms to the area.
Read the full account →Strong thunderstorm activity, fueled by MLCAPE values of around 1000 J/KG, developed across the Mogollon Rim and the White Mountains and were steered westward into Gila County.
Read the full account →High pressure aloft remained centered near northwest New Mexico on September 8th, resulting in a southeast flow that maintained a moisture supply across southeast Arizona.
Read the full account →A moist southeast airflow increased precipitable water values to over 1.75 inches. Thunderstorms developed over much of southeast Arizona. Storms produced heavy rain and flash flooding over Pima and Cochise Counties.
Read the full account →The first in a series of disturbances moved across Arizona from March 20 to 21. This caused widespread snow showers to develop. The heaviest snow was over the higher terrain in upslope areas. This storm also delivered strong and damaging winds.
Read the full account →The first in a series of disturbances moved across Arizona from March 20 to 21. This caused widespread snow showers to develop. The heaviest snow was over the higher terrain in upslope areas. This storm also delivered strong and damaging winds.
Read the full account →The first in a series of disturbances moved across Arizona from March 20 to 21. This caused widespread snow showers to develop. The heaviest snow was over the higher terrain in upslope areas. This storm also delivered strong and damaging winds.
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