Idaho, 2009

Heavy Snow in Idaho, January 1, 2009

January 1, 2009 · NWS BOI · 2 events in 2 counties and zones

A moist westerly flow across the Intermountain West produced heavy snow over parts of Western Idaho and Eastern Oregon from the early morning hours to mid day New years Day.

Where it happened

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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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.

What happened

The episode as NWS BOI wrote it up.

A moist westerly flow across the Intermountain West produced heavy snow over parts of Western Idaho and Eastern Oregon from the early morning hours to mid day New years Day.

The radar

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

Open the radar archive at this moment

Event by event

2 heavy snow. Local standard time, as filed.

Heavy Snow, West Central Mountains

When
January 1, 1:00 AM MST to 1:00 PM MST
Where
West Central Mountains forecast zone
Reported by
COOP Observer
Coordinates
44.543, -116.300 (the zone’s center; the record gives no point)

A cooperative observer at Yellow Pine Bar reported over thirteen inches of snow during a twenty four hour period on New Year Day while trained spotters and SNOTEL sites reported from six to eight inches over a twelve hour period during the early morning hours.

Heavy Snow, Boise Mountains

When
January 1, 2:00 AM MST to 2:00 PM MST
Where
Boise Mountains forecast zone
Reported by
COOP Observer
Coordinates
43.602, -115.335 (the zone’s center; the record gives no point)

Cooperative observers and trained spotters reported from eight to nine inches of snow while most of the SNOTEL sites reported from six to nine inches.

What these are

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 2009Every state in 2009This day in weather historyWarnings in Idaho, January 2009

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: 150704, 150703.