Idaho, 1997

Flash Flood and Hail in Idaho, September 2 to 6, 1997

September 2 to 6, 1997 · NWS BOI · 2 events in 2 counties and zones

1 flash flood, 1 hail, 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

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The toll

Deaths
0
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.

The radar

The national radar mosaic for the moment the first event began.

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Event by event

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

Flash Flood, Owyhee

When
September 2, 9:00 PM MST to 10:00 PM MST
Where
Owyhee County, 5 mi NE of Reynolds
Coordinates
42.582, -116.170 (the zone’s center; the record gives no point)

Afternoon heavy showers and thunderstorms produced a minor flash flood in Owyhee County. Spotters reported water over the Reynolds Creek Road.

Hail, Twin Falls

When
September 6, 2:25 PM MST
Where
Twin Falls County, Rogerson
Measured
1.25 in hail
Coordinates
42.220, -114.580

A weather spotter in Rogerson reported 1.25 inch hail with a severe thunderstorm. No damage reported.

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.
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 Idaho in 1997Every state in 1997This day in weather historyWarnings in Idaho, September 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: 5616836, 5616837.