1,237 first-hand accounts of flood events in Arizona, ranked by impact. Each is a NOAA-written narrative of the moment.
The air flow over Arizona slowly transitioned from a west to east trajectory, to more southerly. This was due to a nearly stationary low forming off the western coast of California, which will provided some dynamical forcing. This allowed moisture to move northward from Mexico.
Read the full account →The first active convective day of the 2024 monsoon produced several thunderstorms that resulted in strong winds and flash flooding. Notably, a 61 MPH wind gust occurred at Pioneer Airfield at Fort Huachuca and separately, Flash Flooding and severe wind gusts were observed in…
Read the full account →A large thunderstorm complex developed and tracked into south-central Arizona during the early morning hours on the 4th with widespread heavy rainfall activity across the Phoenix area, leading to flash flooding.
Read the full account →A large thunderstorm complex developed and tracked into south-central Arizona during the early morning hours on the 4th with widespread heavy rainfall activity across the Phoenix area, leading to flash flooding.
Read the full account →A large thunderstorm complex developed and tracked into south-central Arizona during the early morning hours on the 4th with widespread heavy rainfall activity across the Phoenix area, leading to flash flooding.
Read the full account →A large thunderstorm complex developed and tracked into south-central Arizona during the early morning hours on the 4th with widespread heavy rainfall activity across the Phoenix area, leading to flash flooding.
Read the full account →A large thunderstorm complex developed and tracked into south-central Arizona during the early morning hours on the 4th with widespread heavy rainfall activity across the Phoenix area, leading to flash flooding.
Read the full account →A weakening but still potent upper level low pressure system continued to push east across Arizona during the day on March 13th, and the atmosphere across the central deserts was still very humid and a bit unstable.
Read the full account →A weakening but still potent upper level low pressure system continued to push east across Arizona during the day on March 13th, and the atmosphere across the central deserts was still very humid and a bit unstable.
Read the full account →Thunderstorms developed over the deserts to the west of Phoenix during the afternoon hours on July 23rd and some of the stronger storms generated locally heavy rainfall.
Read the full account →Isolated to scattered thunderstorms developed and moved southeast across parts of southeast Arizona during the late afternoon and evening hours of September 8th. The strongest storms produced heavy rain and gusty winds across far eastern Pima and western Cochise counties.
Read the full account →Isolated to scattered thunderstorms developed and moved southeast across parts of southeast Arizona during the late afternoon and evening hours of September 8th. The strongest storms produced heavy rain and gusty winds across far eastern Pima and western Cochise counties.
Read the full account →The monsoon high broke down over Arizona late in August with a trough setting up over the southwest U.S. leading to southwest flow over the state. Tropical moisture was able to push up the Gulf of California into Arizona under this setup.
Read the full account →The monsoon high broke down over Arizona late in August with a trough setting up over the southwest U.S. leading to southwest flow over the state. Tropical moisture was able to push up the Gulf of California into Arizona under this setup.
Read the full account →Thunderstorms moved from higher terrain north and southeast of the Phoenix metro area toward the lower deserts along multiple outflow boundaries. Multiple severe thunderstorm warnings were issued as storms were producing 50-60 mph winds.
Read the full account →A powerful Pacific low pressure system spread considerable amounts of moisture into the deserts of Arizona on March 12th. The low, aided by an unstable air mass, generated widespread showers along with embedded thunderstorms.
Read the full account →A strong, wet Pacific upper level low pressure system spread copious amounts of moisture into south central Arizona on Saturday February 22nd; as a result widespread rain developed early in the morning and the moderate to heavy rain persisted for much of the day.
Read the full account →Thunderstorms produced heavy rain in the late evening in Tucson. Some areas received .75 to 1.5 inches of precipitation in 20 minutes. At 1015 pm MST, Pima County dispatch reported multiple cars stalled in the underpass at Stone Ave. due to the six feet of water.
Read the full account →The remnants of tropical storm Kay were centered off the California coast but helped generate enough shear to produce severe thunderstorms that moved northwest across southeast Arizona during the late afternoon and evening.
Read the full account →Daytime heating combined with abundant moisture allowed for isolated convection to develop over favored terrain features in southern Gila County during the afternoon and evening on the 1st.
Read the full account →Above normal precipitable water values, high surface dewpoints, and light southerly or southeasterly steering flow will continued across northern Arizona. The morning sounding showed moderate instability, with potential for back-building and/or training.
Read the full account →Above normal precipitable water values, high surface dewpoints, and light southerly or southeasterly steering flow will continued across northern Arizona. The morning sounding showed moderate instability, with potential for back-building and/or training.
Read the full account →Above normal precipitable water values, high surface dewpoints, and light southerly or southeasterly steering flow will continued across northern Arizona. The morning sounding showed moderate instability, with potential for back-building and/or training.
Read the full account →A long wave trough moved across Arizona on on New Year's Day with bringing widespread precipitation. Snow levels were initially relatively high for this time of the year. The snow levels dropped rapidly as a cold front associated with the trough moved across the area.
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