Arizona, 2019

Flash Flooding in Arizona, November 28 to 29, 2019

November 28 to 29, 2019 · NWS PSR · 4 events in 1 county or zone

A powerful Pacific low pressure system moving into the desert southwest resulted in significant rains along with embedded thunderstorms that developed across portions of La Paz County during the evening hours on November 28th. Rainfall was moderate to heavy at times and resulted in flash flooding over portions of the County; as the low slowly moved east the heavy rain and resulting flash…

Where it happened

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The toll

Deaths
0
Injuries
0
Property damage
$74,000
Crop damage
None recorded
Events
4

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PSR wrote it up.

A powerful Pacific low pressure system moving into the desert southwest resulted in significant rains along with embedded thunderstorms that developed across portions of La Paz County during the evening hours on November 28th. Rainfall was moderate to heavy at times and resulted in flash flooding over portions of the County; as the low slowly moved east the heavy rain and resulting flash flooding persisted into the morning hours on the 29th. Multiple Flash Flood Warnings were issued. Initially, flash flooding occurred near Quartzsite; as of 2022MST all washes were flooded out along Highway 95 and by about 2300MST flash flooding was occurring in central La Paz County. About 2 miles southwest of Vicksburg, 2 vehicles became stuck in a flowing wash. Flash flooding persisted after midnight and at 0053MST washes were running along State Route 72 with the road becoming impassable.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Phoenix, AZ wrote its last area forecast discussion before the first event at Nov 28, 5:14 AM MST, 6 hours 16 minutes earlier.

Area forecast discussion, Nov 28, 5:14 AM MST, 6 hours 16 minutes before
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The radar

The Yuma radar (KYUX), 172 km away, was scanning. The volume nearest the first event began at 18:30 UTC.

Open the radar archive at this moment

Event by event

4 flash flood. Local standard time, as filed.

Flash Flood, La Paz

When
November 28, 11:30 AM MST to November 29, 3:30 AM MST
Where
La Paz County, 0.5 mi ESE of Salome to 0.19 mi E of Salome
Cause
Heavy Rain
Property damage
$30,000
Reported by
Law Enforcement
Coordinates
33.776, -113.612

A powerful Pacific low pressure system developing over the desert southwest interacted with deep moisture to produce widespread rain across the central and east portions of La Paz County during the early morning hours on November 29th. Isolated thunderstorms were embedded within the areas of rain, locally enhancing rain totals. The heavy rain led to some flash flooding that impacted areas around the community of Salome. According to the La Paz County Sheriff's Office, flash flooding caused the road to be washed away at Avenue B in Salome. Estimated time of the flooding was about 0120MST; the time of the impact was based on data from a Maricopa County Flood Control gage that crested at 3.86 feet at 0158MST. Flooding was estimated based on when the action stage was reached at which point there was potential for channel breakouts to begin along Centennial Wash.

Flash Flood, La Paz

When
November 28, 7:50 PM MST to November 29, 3:30 AM MST
Where
La Paz County, 10.29 mi SSE of Quartzsite to 5.39 mi SSW of Quartzsite
Cause
Heavy Rain
Property damage
$2,000
Reported by
Law Enforcement
Coordinates
33.523, -114.127

A powerful Pacific low pressure system developing over the desert southwest led to widespread rain across portions of La Paz County during the evening hours. Rain was moderate to heavy at times and resulted in some flash flooding that occurred near the community of Quartzsite. According to the La Paz County Sheriff's Office, at 2022MST flash flooding resulted in all washes being flooded out along Highway 95 from milepost 90 north to the town of Quartzsite. The report was initiated from French Creek in the middle of the flooded area. Fortunately there were no reports of accidents in the area due to the flooded roads and hazardous driving conditions.

Flash Flood, La Paz

When
November 28, 9:00 PM MST to November 29, 3:30 AM MST
Where
La Paz County, 4.08 mi S of Vicksburg to 1.68 mi SSW of Vicksburg
Cause
Heavy Rain
Property damage
$40,000
Reported by
Law Enforcement
Coordinates
33.691, -113.749

Widespread rain, moderate to heavy at times, developed across portions of La Paz County during the evening hours on November 28th; the heavy rain led to some flash flooding across central portions of the county which persisted into the early morning hours of the 29th. According to local law enforcement, at 2324MST flash flooding resulted in two vehicles becoming stuck in a wash along Vicksburg Road, about 2 miles to the southwest of Vicksburg. The cars were stranded with water up to the bottom of the car door windows. There were no reports of injuries as a result of the flooding however.

Flash Flood, La Paz

When
November 28, 11:30 PM MST to November 29, 3:30 AM MST
Where
La Paz County, 2.81 mi WSW of Vicksburg to 0.86 mi SW of Utting
Cause
Heavy Rain
Property damage
$2,000
Reported by
Law Enforcement
Coordinates
33.731, -113.793

A powerful Pacific low pressure system developing over the desert southwest interacted with deep moisture to produce widespread rain across central portions of La Paz County during the early morning hours on November 29th. Isolated thunderstorms were embedded withing the areas of rain, locally enhancing rain totals. The heavy rain led to some flash flooding near the town of Vicksburg. According to the La Paz County Sheriff's office, at 0053MST flash flooding along state route 72 caused washes along the route to flow heavily. State route 72 then became impassable at mile posts 35, 43 and 45. There were no reports of accidents as a result of the flash flooding.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Arizona in 2019Every state in 2019This day in weather historyWarnings in Arizona, November 2019

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 859996, 859891, 859977, 859995.