Montana, 2020

Hail and Lightning Strike in Montana, July 31, 2020

July 31, 2020 · NWS GGW · 2 events in 2 counties and zones

A significantly unstable atmosphere and favorable winds produced many strong thunderstorms across eastern Montana, on of which became severe over Sheridan County.

Where it happened

Every event with a place to put it. 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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The toll

Deaths
1
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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 GGW wrote it up.

A significantly unstable atmosphere and favorable winds produced many strong thunderstorms across eastern Montana, on of which became severe over Sheridan County.

The radar

The Glasgow radar (KGGW), 183 km away, was scanning. The volume nearest the first event began at 16:28 UTC.

Open the radar archive at this moment

Event by event

1 lightning, 1 hail. Local standard time, as filed.

Lightning, Dawson

When
July 31, 9:30 AM MST
Where
Dawson County, 1.15 mi ESE of Glendive Dawson Arpt
Deaths
1 direct, 0 indirect
Reported by
Emergency Manager
Coordinates
47.123, -104.778

Dawson County DES Coordinator reported a 65 year old woman struck and killed by lightning while walking along Airport Road west of Glendive.

Hail, Phillips

When
July 31, 12:59 PM MST
Where
Phillips County, 3.61 mi SW of Hays Dot
Measured
1.75 in hail
Reported by
Trained Spotter
Coordinates
47.880, -108.770

Trained spotter reported hail up to the size of golf balls, as well as 0.75 inch of rain. Time is estimated from radar.

The people who died

As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.

EventDateAgeSexWhereKind
Lightning, Dawson2020-07-3165FemaleUnder TreeDirect

What these are

Lightning
A lightning strike that killed, injured or caused damage.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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

The same day elsewhere

More

Every storm in Montana in 2020Every state in 2020This day in weather historyWarnings in Montana, July 2020

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 2026-10-01. Each event’s entry at NCEI: 912593, 909738.