Idaho, 1999

Flash Flood and Heavy Snow in Idaho, January 2 to 29, 1999

January 2 to 29, 1999 · NWS OTX · 4 events in 4 counties and zones

2 heavy snow, 1 dense fog, 1 flash flood, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 4 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
$22,000
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.

The radar

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

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Event by event

2 heavy snow, 1 dense fog, 1 flash flood. Local standard time, as filed.

Dense Fog, N Nez Perce County

When
January 2, 4:00 AM PST to 9:00 AM PST
Where
N Nez Perce County forecast zone
Property damage
$10,000
Reported by
NEWSPAPER
Coordinates
46.327, -116.750 (the zone’s center; the record gives no point)

Dense fog in the Lewiston valley lead to icy conditions along Highway 95 and one minor accident with no injuries.

Flash Flood, Shoshone

When
January 12, 2:00 PM PST to January 14, 8:00 AM PST
Where
Shoshone County, Kellogg
Property damage
$12,000
Reported by
NEWSPAPER
Coordinates
47.352, -115.891 (the zone’s center; the record gives no point)

Flooding on the Milo creek caused water to be backed up in a few basements of some homes.

Heavy Snow, Boundary/Bonner/ X Nw Kootenai

When
January 16, 5:00 PM PST to January 17, 5:00 PM PST
Where
Boundary/Bonner/ X Nw Kootenai forecast zone
Reported by
TRAINED SPOTTER
Coordinates
48.247, -116.588 (the zone’s center; the record gives no point)

Heavy snow of 4-12" of snow each was reported over the Northern and Central Panhandle Mountains of Idaho. Some of the sites include Bonners Ferry, Silver Mountain, Lookout Pass and Porthill.

Heavy Snow, Shoshone/E Kootenai/E Benewah/E Latah

When
January 28, 5:00 PM PST to January 29, 5:00 PM PST
Where
Shoshone/E Kootenai/E Benewah/E Latah forecast zone
Reported by
TRAINED SPOTTER
Coordinates
47.265, -116.491 (the zone’s center; the record gives no point)

What these are

Dense Fog
Fog reducing visibility to a quarter mile or less, filed where it caused accidents or disruption.
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.
Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

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

The same day elsewhere

More

Every storm in Idaho in 1999Every state in 1999This day in weather historyWarnings in Idaho, January 1999

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: 5714110, 5714111, 5714438, 5714439.