Arizona, 2020Excessive Heat in Arizona, July 30 to 31, 2020
July 30 to 31, 2020 · NWS VEF · 4 events in 4 counties and zones
Strong high pressure built over the Mojave Desert, leading to dangerously hot temperatures. This episode continued into August.
Every event with a place to put it; 2 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
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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- 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.
Strong high pressure built over the Mojave Desert, leading to dangerously hot temperatures. This episode continued into August.
Excessive Heat, Northwest Plateau
- When
- July 30, 12:00 PM MST to July 31, 11:59 PM MST
- Where
- Northwest Plateau forecast zone
- Reported by
- Official NWS Observations
- Coordinates
- 35.704, -113.758 (the zone’s center; the record gives no point)
Excessive Heat Warning criteria were reached on the last two days of the month. The event continued into August.
Excessive Heat, Lake Havasu and Fort Mohave
- When
- July 30, 12:00 PM MST to July 31, 11:59 PM MST
- Where
- Lake Havasu and Fort Mohave forecast zone
- Reported by
- Official NWS Observations
- Coordinates
- 35.704, -113.758 (the zone’s center; the record gives no point)
Excessive Heat Warning criteria were reached on the last two days of the month. The event continued into August.
Excessive Heat, Northwest Deserts
- When
- July 30, 12:00 PM MST to July 31, 11:59 PM MST
- Where
- Northwest Deserts forecast zone
- Reported by
- Official NWS Observations
Excessive Heat Warning criteria were reached on the last two days of the month. The event continued into August.
Excessive Heat, Lake Mead National Recreation Area
- When
- July 30, 12:00 PM MST to July 31, 11:59 PM MST
- Where
- Lake Mead National Recreation Area forecast zone
- Reported by
- Official NWS Observations
Excessive Heat Warning criteria were reached on the last two days of the month. The event continued into August.
- Excessive Heat
- Heat at or above the local excessive heat warning criteria, or heat that caused deaths.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Rip Current in Michigan, July 30, 20203 deaths · 5 injured · 1 event
- Flash Flooding in West Virginia, July 30 to 31, 2020$478,000 · 6 events
- Hail and Damaging Winds in Oklahoma, July 30, 2020$44,000 · 1.5 in hail · 30 events
- Flash Flooding and Flooding in Missouri, July 30 to 31, 2020$50,000 · 19 events
- Hail and Damaging Winds in Oklahoma, July 30, 2020$58,000 · 1 in hail · 9 events
- Hail and Damaging Winds in Massachusetts, July 30, 2020$40,000 · 60 kt wind · 12 events
- Marine Thunderstorm Winds in North Atlantic Coastal Waters, July 30, 202034 events
- Damaging Winds in New Jersey, July 30 to 31, 202061 kt wind · 23 events
- Flash Flood in Illinois, July 30, 2020$25,000 · 1 event
- Damaging Winds in Connecticut, July 30, 2020$17,000 · 52 kt wind · 3 events
- Damaging Winds in New York, July 30 to 31, 2020$15,000 · 52 kt wind · 5 events
- Flash Flooding in Kansas, July 30, 202013 events
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 2026-10-01. Each event’s entry at NCEI: 900109, 900110, 900112, 900113.