Flood and Hail in Idaho, August 12, 1997

Name: Flood and Hail in Idaho, August 12, 1997
Start: 1997-08-12T15:04
End: 1997-08-12T16:00
Location: Idaho

August 12, 1997 · NWS PIH · 2 events in 1 county or zone

1 hail, 1 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: 0
Property damage: $1.0 million
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.

The radar

The Pocatello radar (KSFX), 33 km away, was scanning. The volume nearest the first event began at 22:04 UTC.

Open the radar archive at this moment

Event by event

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

Hail, Bannock

When: August 12, 3:04 PM MST to 3:22 PM MST
Where: Bannock County, Pocatello
Measured: 1.75 in hail
Property damage: $1.0 million
Coordinates: 42.870, -112.430

Hail from quarter to golfball-size occurred from Yellowstone Ave near Alameda to the lower Pocatello Creek area. Numerous vehicles (500+) and roofs(200+) in the area were damaged by hail. Specific hail reports within this area include: 1.75 inch hail 15th and Oak Street, 1.75 inch hail Maple Street and Yellowstone Ave, 1.5 inch hail near Poplar Street and Interstate 15, 1.25 inch hail at Channel 6 studio, 1.0 inch hail lower Pocatello Creek, and 1.0 inch hail Monte Vista.

Flood, Bannock

When: August 12, 3:15 PM MST to 4:00 PM MST
Where: Bannock County, Pocatello
Coordinates: 42.669, -112.225 (the zone’s center; the record gives no point)

Heavy rain and the resultant runoff flooded down Kimberly Lane and across Pocatello Creek Road with two to three inches of rock and mud deposited on Pocatello Creek Road.

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

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

The same day elsewhere

Every storm in Idaho in 1997 Every state in 1997 This day in weather history Warnings in Idaho, August 1997

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: 5618266, 5618267.