A powerful Pacific low pressure system moving slowly through the desert southwest interacted with deep moisture to produce widespread heavy rain across the central deserts during the morning hours on November 29th. Aided by frontal lift, isolated thunderstorms developed which further enhanced rain totals. The heavy rain resulted in several instances of flash flooding across the western portions of Maricopa County that occurred near or before sunrise. Most of the flash flooding took the form of flowing washes or roads becoming washed out or impassable. In some cases, data from Maricopa County Flood Control District gages was used to infer the presence of flash flooding. Fortunately, there were no reports of accidents or injuries due to the flash flooding.

Flash Flood in MARICOPA, ARIZONA
From 29-NOV-19 00:30:00 to 29-NOV-19 05:00:00 (MST-7)
Location: GLADDEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A powerful Pacific low pressure system moving slowly east across Arizona interacted with deep moisture to produce widespread moderate to heavy rain across the western portion of Maricopa County during the morning hours on November 29th. Aided by frontal lift, isolated thunderstorms developed which enhanced rain totals. The heavy rain resulted in an episode of flash flooding over mostly open country, north of Interstate 10 and just east of the county line. According to a report at 0626MST from a county official, Eagle Eye road was closed from milepost 6 to milepost 13 due to flash flooding. The time of the actual flash flooding was about 0232MST and was based off of data from a Maricopa County Flood Control stream gage. The gage crested at 7.22 feet at 0208MST and the expected travel time of the flood wave was used to determine the time of flash flooding at Eagle Eye road. The location of the flooding was about 10 miles southeast of the town of Gladden. There were no reports of any accidents due to the flash flooding.

Flash Flood in MARICOPA, ARIZONA
From 29-NOV-19 01:30:00 to 29-NOV-19 07:30:00 (MST-7)
Location: HARQUA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A powerful Pacific low pressure system moving slowly east across Arizona interacted with deep moisture to produce widespread moderate to heavy rain across western portions of Maricopa County during the morning hours on November 29th. Aided by frontal lift, isolated thunderstorms developed and enhanced rain totals. The heavy rain led to an episode of flash flooding over far west central Maricopa County near the Eagle Tail Mountains. According to a delayed report from the public, flash flooding resulted in Agua Caliente road becoming flooded and impassable where it crosses the Fourth of July Wash. The actual flash flooding occurred about 0207MST and was based off of data from a Maricopa County Flood Control District streamgage which showed the wash cresting at 2.2 feet; estimated travel time of the flood wave resulted in the time of the actual flash flooding. There were no reports of accidents due to the flash flooding.

Flash Flood in MARICOPA, ARIZONA
From 29-NOV-19 01:30:00 to 29-NOV-19 08:00:00 (MST-7)
Location: WICKENBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A powerful Pacific low pressure system moving slowly east across Arizona interacted with deep moisture to produce widespread moderate to heavy rain across western portions of Maricopa County during the morning hours on November 29th. Aided by frontal lift, isolated thunderstorms developed within the bands of rain, locally enhancing rain totals. The heavy rain led to an episode of flash flooding in the community of Wickenburg during the early morning hours. According to the Wickenburg fire and rescue department, flash flooding caused the vulture mine road to become closed at Sols Wash, about 3 miles to the northwest of Wickenburg. The actual time of the flooding was estimated to be 0351MST, based on data from a Maricopa County Flood Control District streamgage; the gage crested at 1.79 feet and travel time of the flood wave was used in estimating the exact time of flash flooding. There were no reports of accidents due to the flash flooding.

Flash Flood in MARICOPA, ARIZONA
From 29-NOV-19 03:00:00 to 29-NOV-19 08:15:00 (MST-7)
Location: BOSQUE
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

A powerful Pacific low pressure system moving slowly east across Arizona interacted with deep moisture to produce widespread moderate to heavy rain over western portions of Maricopa County, including the community of Gila Bend, during the morning hours on November 29th. Isolated thunderstorms were present and they further increased rain totals. The heavy rain led to some flash flooding east of Gila Bend and along Highway 238. According to the Maricopa County Sheriff's Office and the department of transportation, flash flooding caused state route 238 to be closed from milepost 24 to Gila Bend. There were no reports of accidents due to the flash flooding.