Flash Flood in Arizona, July 14, 1999

Name: Flash Flood in Arizona, July 14, 1999
Start: 1999-07-14T11:43
End: 1999-07-14T17:30
Location: Arizona

July 14, 1999 · NWS FGZ · 1 event in 1 county or zone

1 flash flood, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 4
Property damage: $2.5 million
Crop damage: None recorded
Events: 1

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.

The radar

The Flagstaff radar (KFSX), 150 km away, was scanning. The volume nearest the first event began at 18:41 UTC.

Open the radar archive at this moment

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Coconino

When: July 14, 11:43 AM MST to 5:30 PM MST
Where: Coconino County, 5 mi N of Grand Canyon Arpt
Injuries: 4 direct, 0 indirect
Property damage: $2.5 million
Reported by: PARK/FOREST SERVICE
Coordinates: 35.839, -111.770 (the zone’s center; the record gives no point)

Repeat thunderstorms over the Grand Canyon National Park produced some the worst flash flooding seen in years. Severe damage was done to the Bright Angel and North Kaibab hiking trails, forcing their closure for nearly two weeks. Flood waters also undermined a major water supply line to the South Rim. Conservative damage and repair amounts are $2.5 million. The injuries included one broken leg, and three with lacerations. In addition 26 campers were airlifted out of the canyon due to the trail washouts.

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

Every storm in Arizona in 1999 Every state in 1999 This day in weather history Warnings in Arizona, July 1999

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: 5712202.