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The Dexes / Heavy Rain / 531554

Eventdex · Heavy Rain

MARICOPA

531554 · 33.740, -111.990

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The record

Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.

Event typeevent_typeHeavy Rain
NOAA NCEI event IDncei_event_id531,554
Episode IDepisode_id88,056
Begin UTCbegin_utc2014-08-19T13:30:00+00:00
End UTCend_utc2014-08-19T15:00:00+00:00
StatestateARIZONA
County/zone typecz_typeC
County/zone namecz_nameMARICOPA
Latitudelat33.740
Longitudelon-111.990
End latitudeend_lat33.740
End longitudeend_lon-111.990
Deaths directdeaths_direct0
Deaths indirectdeaths_indirect0
Injuries directinjuries_direct0
Injuries indirectinjuries_indirect0
Damage propertydamage_property0.00K
Damage cropsdamage_crops0.00K
Weather forecast office sourcewfo_sourceTrained Spotter
Episode narrativeepisode_narrativeScattered to numerous showers and thunderstorms developed across much of central Arizona during the morning hours on August 19th, and they moved steadily towards the northeast for a period of several hours, affecting the greater Phoenix metropolitan areas as well as higher terrain locations to the north and northeast of Phoenix. Due to relatively slow storm movement combined with training of echoes, heavy rainfall occurred with rain rates in excess of once inch per hour. Some locations in favored upslope areas such as New River received storm total rainfall amounts greater than 3 inches. The heavy rain led initially to flash flooding of streams, washes and roads, and subsequently areal flooding as the terrain became inundated. Multiple swift water rescues were needed, homes and trailers were flooded, and roads were closed from northern Phoenix northward into Yavapai county.
Event narrativeevent_narrativeThunderstorms developed across central and northern portions of the greater Phoenix metropolitan area after 0600MST on August 19th, and they continued to intensify and move towards the northeast, producing locally heavy rainfall. Some of the communities affected included Deer Valley, Desert Ridge Marketplace and Scottsdale. The stronger storms generated rainfall rates between one and two inches per hour which led to significant urban flooding. At 0722MST, a trained spotter 5 miles northwest of Desert Ridge Marketplace, near the Cave Buttes recreational area, measured 0.93 inches of rain within 30 minutes which represented a nearly two inch per hour rainfall rate. Street flooding was occurring in the area. Another trained spotter located about 3 miles southwest of Desert Ridge Marketplace measured 1.32 inches of rain between 0630MST and 0730MST. The urban flooding led to the issuance of an Urban and Small Stream Advisory at 0627MST.
Yearyear2,014

Provenance

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MARICOPA — Heavy Rain — TerraPulse