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Flood in Maricopa County, Arizona

Flood April 1, 2023 – April 9, 2023 · Maricopa County, Arizona

2
Deaths

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Two men paddle boarding down the Salt River were caught in an undercurrent near 19th Avenue and Broadway on the 9th. They became stuck in the undercurrent around 1000MST and began yelling for help before disappearing under the water. The bodies of the two men were recovered about a week later on the 15th and 16th. Flow in the Salt River was unusually high at the time due to continued upstream releases from Granite Reef Dam. Start time based on continued releases from Granite Reef Dam.

The wider storm

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. Dam releases being conducted in these watersheds to deal with the abnormal runoff led to continued downstream impacts along the Salt and Gila Rivers, which initially began in March. Continued releases from Granite Reef Dam allowed for elevated flows to persist in the normally dry Salt River with multiple unbridged river crossings remaining closed due to flooding. The heightened flows in the Salt River led to the fatalities of two men who were caught in an undercurrent while paddle boarding down the river. Releases from Granite Reef Dam were significantly reduced by the end of April as runoff into the watersheds decreased. Flow in the Salt and Gila Rivers continued to travel downstream to Painted Rock Dam. Releases from this dam led to elevated flows traveling down the Gila River into Yuma County, leading to numerous additional closures of unbridged river crossings. Elevated flows in the Salt and Gila Rivers allowed for impacts to persist into the month of May.

Began near Gomez Arpt (33.4100, -112.1024).

Source: NOAA Storm Events Database, event 1095873. Narratives are written by the National Weather Service forecast office that issued the report.

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