Extensive damage also occurred to agriculture in Marana. "Several buildings fell into Rillito Creek due to bank erosion. A weather disturbance, combined with then Tropical Storm Octave on the California coast, led to a four-day period of rainfall. Before the historic flood began, the metro area was already saturated with seven inches of rain that fell during August and September. This was the most impactful storm in Tucson during the 20th Century, according to NWS. NWS says a wall of water 15 feet high rushed down the canyon and over the falls. This flash flood killed eight people in a flash flood at Tanque Verde Falls. NWS mentions that an apartment's roof was blown off, making 200 people temporarily homeless. This storm reportedly went on for 90 minutes, with wind gusts up to 67 miles per hour, resulting in city-wide damage estimated at $2,000,000. The flash flooding resulted in the drowning of 10 people. National Weather Service Tucson says the rain tore a 15-foot gap in the bridge on Benson Highway. On this day, heavy thunderstorms caused washes to overflow on Tucson's southside. While we won't know the official rainfall totals until the end of the weekend, here's a look back at some notable years when the Tucson metro area was most affected by Monsoon storms.Īll information below is provided by the National Weather Service "The upcoming heavy rain event for southeast Arizona brings back memories of the late July 2006 heavy rain/flash flooding event," said NWS Tucson in a tweet Thursday. National Weather Service Tucson says heavy rain is expected, most notably in southeast Arizona. (KGUN) - This weekend's weather could bring some significant flooding to the Tucson area.
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