Thunderstorm Wind, La Paz
- When
- July 6, 7:13 PM MST
- Where
- La Paz County, 23 mi E of Quartzsite
- Measured
- 55 kt (63 mph)
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 33.650, -113.820
Semi blew off Interstate 10.
Flash Flooding and Flood in Arizona, July 6 to 31, 1998
19 thunderstorm wind, 6 flash flood, 1 flood, 1 heavy rain, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 8 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $500,000
- Crop damage
- None recorded
- Events
- 27
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 national radar mosaic for the moment the first event began.
Event by event
19 thunderstorm wind, 6 flash flood, 1 flood, 1 heavy rain. Local standard time, as filed.
Thunderstorm Wind, Maricopa
- When
- July 6, 9:00 PM MST
- Where
- Maricopa County, Phoenix
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.480, -112.070
Trees down on Union Hills between 7th and 19th Ave.
Flood, Maricopa
- When
- July 6, 9:00 PM MST to 9:58 PM MST
- Where
- Maricopa County, Phoenix
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Widespread very heavy rainfall caused street flooding and flowing washes. A house in North Phoenix was damaged by water. One of the heaviest amounts was 1.45 inches in 50 minutes.
Heavy Rain, Gila
- When
- July 7, 2:10 PM MST
- Where
- Gila County, 1 mi WNW of Roosevelt
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.800, -110.812 (the zone’s center; the record gives no point)
One inch rainfall in 20 minutes.
Thunderstorm Wind, Maricopa
- When
- July 7, 5:57 PM MST
- Where
- Maricopa County, Phoenix
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.480, -112.070
Power poles down on 19th Ave between Bell and Union Hills.
Thunderstorm Wind, Pinal
- When
- July 16, 7:55 PM MST to 8:35 PM MST
- Where
- Pinal County, Countywide
- Measured
- 50 kt (58 mph)
- Reported by
- UTILITY COMPANY
- Coordinates
- 32.980, -111.330
Numerous power poles down in Florence, Coolidge, Casa Grande, Picacho and Eloy.
Thunderstorm Wind, Maricopa
- When
- July 17, 6:23 PM MST
- Where
- Maricopa County, Sunnyslope
- Measured
- 50 kt (58 mph)
- Reported by
- AMATEUR RADIO
- Coordinates
- 33.580, -112.080
Power lines down.
Thunderstorm Wind, Maricopa
- When
- July 17, 8:30 PM MST
- Where
- Maricopa County, Phoenix
- Measured
- 50 kt (58 mph)
- Reported by
- BROADCAST MEDIA
- Coordinates
- 33.480, -112.070
Large tree, carport, and fences blown down in North Phoenix.
Thunderstorm Wind, Gila
- When
- July 17, 9:22 PM MST
- Where
- Gila County, Roosevelt
- Measured
- 61 kt (70 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.670, -111.130
Thunderstorm Wind, Pinal
- When
- July 17, 9:40 PM MST
- Where
- Pinal County, 5 mi NE of Apache Jct
- Measured
- 50 kt (58 mph)
- Reported by
- PARK/FOREST SERVICE
- Coordinates
- 33.470, -111.480
Trees and cacti blown down, shingles blown off.
Thunderstorm Wind, Pinal
- When
- July 17, 10:28 PM MST
- Where
- Pinal County, Apache Jct
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.420, -111.550
Sixty foot paging tower blown down.
Thunderstorm Wind, Maricopa
- When
- July 17, 10:31 PM MST
- Where
- Maricopa County, Gilbert
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.350, -111.780
Two TV antennas blown down, street signs blown down.
Thunderstorm Wind, Maricopa
- When
- July 17, 10:42 PM MST
- Where
- Maricopa County, Scottsdale
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.480, -111.900
Power lines down, numerous trees down.
Thunderstorm Wind, Maricopa
- When
- July 17, 10:52 PM MST
- Where
- Maricopa County, Mesa
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.420, -111.820
Trees downed on Hwy 60.
Thunderstorm Wind, Pinal
- When
- July 17, 10:52 PM MST
- Where
- Pinal County, Apache Jct
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.420, -111.550
Trees downed on Hwy 60.
Thunderstorm Wind, Maricopa
- When
- July 19, 8:54 PM MST
- Where
- Maricopa County, Wickenburg
- Measured
- 52 kt (60 mph)
- Reported by
- NEWSPAPER
- Coordinates
- 33.970, -112.730
Strong winds toppled a few trees and power lines.
Thunderstorm Wind, Maricopa
- When
- July 19, 10:30 PM MST
- Where
- Maricopa County, Buckeye
- Measured
- 55 kt (63 mph)
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 33.370, -112.580
Ham radio tower blown over by winds, power lines down.
Flash Flood, Pinal
- When
- July 22, 7:30 AM MST to 10:00 AM MST
- Where
- Pinal County, Casa Grande
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 32.904, -111.345 (the zone’s center; the record gives no point)
Widespread flooding of streets with rainfall up to 2.82 inches in about 3 hours.
Flash Flood, Pinal
- When
- July 22, 12:25 PM MST to 12:53 PM MST
- Where
- Pinal County, 8 mi E of Apache Jct
- Reported by
- NEWSPAPER
- Coordinates
- 32.904, -111.345 (the zone’s center; the record gives no point)
Wall of water 8 to 10 feet high on golf course. Roads flooded.
Thunderstorm Wind, La Paz
- When
- July 22, 2:45 PM MST
- Where
- La Paz County, Parker
- Measured
- 55 kt (63 mph)
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 34.150, -114.280
Trees and power lines down.
Flash Flood, Yuma
- When
- July 22, 5:50 PM MST to 9:00 PM MST
- Where
- Yuma County, Wellton
- Reported by
- TRAINED SPOTTER
- Coordinates
- 32.769, -113.906 (the zone’s center; the record gives no point)
Streets flooded after 1.23 inches of rain fell in about an hour.
Thunderstorm Wind, Yuma
- When
- July 22, 5:50 PM MST
- Where
- Yuma County, Wellton
- Measured
- 60 kt (69 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 32.670, -114.130
Winds overturned a fifth wheel trailer and blew down power poles.
Flash Flood, La Paz
- When
- July 22, 9:02 PM MST
- Where
- La Paz County, Vicksburg
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.729, -113.981 (the zone’s center; the record gives no point)
Washes flooded.
Flash Flood, La Paz
- When
- July 28, 10:02 PM MST to 10:45 PM MST
- Where
- La Paz County, Vicksburg
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 33.729, -113.981 (the zone’s center; the record gives no point)
Highway 72 flooded between Vicksburg and Hope.
Flash Flood, Gila
- When
- July 31, 11:20 AM MST to 12:00 PM MST
- Where
- Gila County, Globe
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 33.800, -110.812 (the zone’s center; the record gives no point)
Rock slides in Icehouse Canyon resulted from very heavy rains totalling as much as 3.7 inches. Streets in Globe flooded.
Thunderstorm Wind, Maricopa
- When
- July 31, 10:11 PM MST
- Where
- Maricopa County, 3 mi NE of Mesa
- Measured
- 55 kt (63 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.450, -111.780
Airplane parked at Falcon Field blown through fence and into nearby street.
Thunderstorm Wind, Maricopa
- When
- July 31, 11:04 PM MST to 11:39 PM MST
- Where
- Maricopa County, 5 mi E of Mesa
- Property damage
- $500,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 33.420, -111.730
About 60 power poles damaged or destroyed by winds gusting to at least 60 mph. Along Power Road some lines fell onto several cars.
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
- Heavy Rain
- Rainfall totals unusual for the place and season that did not produce a flood.
- 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
- Heat in Oklahoma, July 6 to 31, 1998
- Lightning Strike in Florida, July 6, 1998
- Drought in Oklahoma, July 6 to 31, 1998
- Flooding in Iowa, July 6 to 10, 1998
- Hail and Damaging Winds in South Dakota, July 6, 1998
- Hail in South Dakota, July 6, 1998
- Tornado and Flash Flooding in Iowa, July 6 to 7, 1998
- Tornadoes and Hail in Nebraska, July 6, 1998
- Hail and Damaging Winds in South Dakota, July 6, 1998
- Hail in Montana, July 6, 1998
- Damaging Wind in South Dakota, July 6, 1998
- Flooding in Iowa, July 6, 1998
More
Every storm in Arizona in 1998Every state in 1998This day in weather historyWarnings in Arizona, July 1998
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 2026-09-24. Each event’s entry at NCEI: 5661540, 5661541, 5661542, 5661539, 5661538, 5661537, 5661536, 5661535, 5661534, 5661528, 5661533, 5661532, 5661531, 5661529, 5661530, 5661543, 5661527, 5661526, 5661230, 5661229, 5661226, 5661227, 5661228, 5661225, 5661224, 5661223, 5661222.