Idaho, 2001

Heavy Snow in Idaho, February 4 to 5, 2001

February 4 to 5, 2001 · NWS MSO · 2 events in 2 counties and zones

24 hour snowfall totals from winter storm that impacted the Clearwater Mountains were: In Clearwater County, Cool Creek 15 inches, Hemlock Butte 16 inches, and Elk Butte 12 inches; in Idaho County, Mountain Meadows 8 inches, and Savage Pass 15 inches.

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 MSO wrote it up.

24 hour snowfall totals from winter storm that impacted the Clearwater Mountains were: In Clearwater County, Cool Creek 15 inches, Hemlock Butte 16 inches, and Elk Butte 12 inches; in Idaho County, Mountain Meadows 8 inches, and Savage Pass 15 inches.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Missoula, MT wrote its last area forecast discussion before the first event at Feb 4, 2:50 AM MST, 3 hours 10 minutes earlier.

Area forecast discussion, Feb 4, 2:50 AM MST, 3 hours 10 minutes before
WESTERN MONTANA AND NORTH CENTRAL IDAHO FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
250 AM MST SUN FEB 4 2001

WINTER STORM WARNING ABOVE 5000 FEET TODAY AND TONIGHT ID ZONES 5-6-8
AND MT ZONES 1-2-4-6-43. WINTER STORM WATCH MT ZONE 7 THIS AFTERNOON
AND TONIGHT.

POTENT SYSTEM APPROACHING PAC NW COAST THIS MORNING WITH PRECIP INTO
EAST WA/OR...CLOSE TO MESO ETA TIMING. WILL SEE PRECIP SPREAD INTO
NC ID NEXT FEW HOURS...WEST MT MID TO LATE MORNING. SYSTEM TAPPING
GOOD MOISTURE SOURCE OFF UPPER LOW NEAR 30N/150W WITH PRECIP H20
VALUES NEAR 1 INCH OFFSHORE. MODEL QPF FORECASTS CONTINUE TO SUPPORT
WARNING AMOUNTS FOR HIGHER ELEVATIONS THROUGH TONIGHT. VALLEY PRECIP
IN THE FORM OF RAIN FOR NC ID VALLEYS WHERE TEMPS CURRENTLY IN LOW/
MID 30S...MT VALLEYS DIFFERENT STORY AS CLEAR SKIES OVERNIGHT ALLOWED
TEMPS TO DROP INTO TEENS/20S. EXPECT TO START AS SNOW THEN MIX FAIRLY
QUICK WITH STRONG WINDS ALOFT AND SHALLOW INVERSIONS WHICH HAVE NOT
HAD MUCH TIME TO ESTABLISH. BUT...STRONG WESTERLY FLOW TODAY WILL
PROVIDE DOWNSLOPE EFFECT FOR VALLEYS AND KEEP SIGNIFICANT PRECIP
AMOUNTS IN CHECK. WILL HAVE TO WATCH FOR POSSIBILITY OF BRIEF PERIOD
OF FZRA DEPENDING ON HOW SOON MIXING OCCURS. MAIN SHORTWAVE AND JET
SAG ACROSS FORECAST AREA TONIGHT TO KEEP PRECIP GOING. THIS ALSO
PROVIDES BEST SHOT FOR SOUTHWEST MT ZONES...BUT AT THIS TIME NOT
CONFIDENT IN WARNING AMOUNTS. 120KT JET CORE AND 700 MB WINDS OF
50-60 KTS TONIGHT FOR STRONG WINDS IN THE HIGHER ELEVATIONS. COLD
ADVECTION WILL TRANSITION PRECIP BACK INTO SNOW FOR ALL EXCEPT VERY
LOWEST ELEVATIONS OVERNIGHT. SNOW SHOWERS CONTINUE MONDAY UNDER
CYCLONIC NORTHWEST FLOW WITH ANOTHER SHORTWAVE ROTATING THROUGH.

EXTENDED...PREDOMINATE FEATURE MOST OF THE WEEK WILL BE NORTH
NORTHWEST FLOW...WITH MAIN IMPACT BEING COLDER TEMPS. MODELS BRING
SERIES OF SHORTWAVES THROUGH WITH NEW MRF BRINGING MORE SIGNIFICANT
WAVE TOWARD THE AREA +AT END OF PERIOD. NO SIGNIFICANT CHANGES.

SULLIVAN

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, Northern Clearwater Mountains

When
February 4, 6:00 AM MST to February 5, 6:00 AM MST
Where
Northern Clearwater Mountains forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
46.674, -115.657 (the zone’s center; the record gives no point)

Heavy Snow, Southern Clearwater Mountains

When
February 4, 6:00 AM MST to February 5, 6:00 AM MST
Where
Southern Clearwater Mountains forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
45.844, -115.467 (the zone’s center; the record gives no point)

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 2001Every state in 2001This day in weather historyWarnings in Idaho, February 2001

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: 5230143, 5230144.