Copious amounts of tropical moisture spread northward into the central deserts during the morning hours on October 2nd. The moisture was associated with the remnants of former hurricane Rosa and as it moved in, widespread moderate to heavy showers and isolated thunderstorms developed across the deserts to the southwest of central Phoenix. Rainfall amounts between one and three inches were widespread and the heavy rain resulted in episodes of flash flooding from Gila Bend northward into the Buckeye valley. During the morning, county officials, emergency managers, department of highways personnel and the public all reported episodes of flash flooding which resulted in road closures, rapidly flowing washes and even the closure of the Rainbow Valley elementary school south of Buckeye. Flash Flood and Areal Flood warnings were issued as a result and fortunately no injuries were reported as a result of the flash flooding.

Flash Flood in MARICOPA, ARIZONA
From 02-OCT-18 11:00:00 to 02-OCT-18 14:30:00 (MST-7)
Location: LIBERTY
Flood cause: Heavy Rain / Tropical System
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Copious amounts of tropical moisture spread north into the greater Phoenix area during the morning hours on October 2nd; the moisture was associated with former hurricane Rosa. The deep moisture resulted in widespread moderate to heavy showers as well as  episodes of flash flooding to the southwest of Phoenix. According to a report from the general public, at 1300MST water from the Waterman Wash could be seen inundating Narramore Road. This was clearly evident from drone footage supplied by the public. No injuries or accidents were reported due to the flash flooding. A Flash Flood Warning was issued for the area at 1100MST and the warning remained in effect through 1430MST.

Flash Flood in MARICOPA, ARIZONA
From 02-OCT-18 08:30:00 to 02-OCT-18 11:15:00 (MST-7)
Location: COTTON CENTER
Flood cause: Heavy Rain / Tropical System
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Department of Highways

Copious amounts of tropical moisture spread north and into southwest Maricopa County during the morning hours on October 2nd; the moisture was associated with the remnants of former hurricane Rosa. The deep moisture resulted in widespread moderate to heavy showers along with episodes of flash flooding to the southwest of Phoenix. According to a report from the Maricopa County Department of Transportation, at  roughly 0900MST flash flooding resulted in Old US 80 as well as Patterson Road becoming impassable. The report was received via Twitter. A Flash Flood Warning was issued for the area at 0809MST and it remained in effect through 1115MST. No reports of accidents were received as a result of the flooded roadways.

Flash Flood in MARICOPA, ARIZONA
From 02-OCT-18 08:30:00 to 02-OCT-18 11:15:00 (MST-7)
Location: LIBERTY
Flood cause: Heavy Rain / Tropical System
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Copious amounts of tropical moisture spread north and into the greater Phoenix area during the morning hours on October 2nd; the moisture was associated with the remnants of former hurricane Rosa. The moisture led to widespread moderate to heavy showers as well as episodes of flash flooding. According to a report from a local emergency manager, at 0930MST flash flooding resulted in the closure of Tuthill Road, about 8 miles to the southeast of the town of Buckeye. The report was based on social media as well as flood control district data. A Flash Flood Warning was issued for the area beginning at 0809MST and the warning was in effect through 1115MST. No accidents were reported due to the flooded roads.

Flash Flood in MARICOPA, ARIZONA
From 02-OCT-18 07:30:00 to 02-OCT-18 11:00:00 (MST-7)
Location: LIBERTY
Flood cause: Heavy Rain / Tropical System
Property damage: 5.00K
Crop damage: 0.00K
Reported by: County Official

Copious amounts of tropical moisture spread north and into the greater Phoenix area during the morning hours on October 2nd; the moisture was associated with the remnants of former hurricane Rosa. The deep moisture resulted in widespread moderate to heavy showers and resulted in episodes of flash flooding to the southwest of Phoenix. According to Maricopa County officials, at 0800MST the Rainbow Valley Elementary School was closed due to flash flooding. The school was located about 8 miles southeast of the town of Buckeye. Fortunately no injuries were reported at the school.

Flash Flood in MARICOPA, ARIZONA
From 02-OCT-18 05:50:00 to 02-OCT-18 09:15:00 (MST-7)
Location: GILA BEND
Flood cause: Heavy Rain / Tropical System
Property damage: 5.00K
Crop damage: 0.00K
Reported by: County Official

Copious amounts of tropical moisture spread north and into southwest Maricopa County during the morning hours on October 2nd; the moisture was associated with former hurricane Rosa. The moisture led to widespread moderate to heavy showers and flash flooding around the town of Gila Bend. According to Maricopa County officials, at 0700MST flash flooding in the Sand Tank Wash resulted in the closure of both Watermelon Road and Indian Road. No accidents were reported due to the flooding. A Flash Flood Warning was issued for the area starting at 0550MST and it remained in effect through 0915MST.