1,237 first-hand accounts of flood events in Arizona, ranked by impact. Each is a NOAA-written narrative of the moment.
What was Major Hurricane Rosa crossed the northern Baja peninsula as a tropical depression October 1st. The remnant circulation entered southwest Arizona on October 2nd. Moisture ahead of these remnants fueled thunderstorms in southeast Arizona on September 30th.
Read the full account →A number of rounds of thunderstorms were triggered by a westward moving upper level weather system across southeast Arizona from the afternoon of July 22 into the early morning of July 23.
Read the full account →Multiple rounds of thunderstorms developed and moved across southeast Arizona from mid morning of August 16 through the early evening of August 17.
Read the full account →Anomalous snowfall across the high terrain of Arizona as well as lower elevation rainfall led to greater than normal runoff into the Salt and Verde watersheds.
Read the full account →Water being held in the Painted Rock Reservoir from abnormal winter and early spring runoff continued to be released downstream from April through the month of May.
Read the full account →Daytime heating combined with divergence aloft associated with an easterly wave near the Arizona/New Mexico border promoted thunderstorm initiation across southeast Arizona during the afternoon of the 30th.
Read the full account →Scattered to numerous thunderstorms developed over the northern half of AZ as well as near the International Border during the afternoon hours with more isolated activity developing across the foothills and higher terrain areas east of Phoenix.
Read the full account →An upper-level trough moving through the area providing strong upper-level ascent combined with MLCAPE values between 1500-3000 J/kg and PWAT values between 1.8-2.0 (associated with the remnants of Tropical Cyclone Lorena) resulted in numerous showers and thunderstorms across…
Read the full account →An upper-level trough moving through the area providing strong upper-level ascent combined with MLCAPE values between 1500-3000 J/kg and PWAT values between 1.8-2.0 (associated with the remnants of Tropical Cyclone Lorena) resulted in numerous showers and thunderstorms across…
Read the full account →Multiple rounds of thunderstorms developed and drifted slowly across southeast Arizona from the early morning hours of August 10 through the late night/early morning hours of August 12.
Read the full account →A number of rounds of thunderstorms were triggered by a westward moving upper level weather system across southeast Arizona from the afternoon of July 22 into the early morning of July 23.
Read the full account →Daytime heating combined with divergence aloft associated with an easterly wave near the Arizona/New Mexico border promoted thunderstorm initiation across southeast Arizona during the afternoon of the 30th.
Read the full account →A strong low pressure system moved across the southwestern U.S. on the 1st, delivering moderate to locally heavy rainfall activity as well as embedded thunderstorm activity.
Read the full account →A storm system moving across the west coast in combination with well above normal moisture levels for mid March standards with values above the 99th percentile resulted in waves of light to moderate rainfall activity across the region.
Read the full account →Isolated showers and thunderstorms initially began across parts of southern Gila County, along with eastern Maricopa County and northeast Pinal County, producing locally heavy rainfall leading to isolated flash flooding.
Read the full account →The overall pattern featured an upper-level low pressure situated along the west coast and the subtropical high pressure centered over New Mexico. This overall pattern configuration resulted in southerly flow across Arizona, which helped transport moisture into the region.
Read the full account →Snowmelt runoff from the anomalous amounts of snow over the Arizona high terrain led to continued elevated flows in the Salt and Verde River watersheds.
Read the full account →Abundant moisture (PWATs 1.7-2.0) and instability (MUCAPE 2,000 J/kg) provided a favorable environment for strong to severe thunderstorms across south-central Arizona on the 14th.
Read the full account →A slow-moving low pressure system brought several rounds of showers and thunderstorms over multiple days through much of the region. Activity on the 25th was mostly concentrated across higher terrain areas of eastern AZ, fueled by MLCAPE values approaching 2000 J/kg.
Read the full account →Severe thunderstorms moved across Southeastern Arizona causing strong winds, hail ranging from 0.75 to 1.0 inches in diameter, and locally heavy rainfall that led to flash flooding. A swift water rescue occurred near Tombstone involving 5 individuals with no injuries.
Read the full account →Severe thunderstorms moved across Southeastern Arizona causing strong winds, hail ranging from 0.75 to 1.0 inches in diameter, and locally heavy rainfall that led to flash flooding. A swift water rescue occurred near Tombstone involving 5 individuals with no injuries.
Read the full account →A number of rounds of thunderstorms were triggered by a westward moving upper level weather system across southeast Arizona from the afternoon of July 22 into the early morning of July 23.
Read the full account →Strong to severe thunderstorms developed in an unstable atmosphere in the afternoon of the 22nd. Storms initially developed over the high terrain of northern and eastern Arizona as well as near the Table Top mesa area south of Phoenix.
Read the full account →A line of very intense thunderstorms moved from southeast to northwest through the Tucson Metro area. The storm was most intense from midtown Tucson extending to the northwest into portions of Marana.
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