Idaho, 2001

Winter Storm in Idaho, January 24 to 25, 2001

January 24 to 25, 2001 · NWS PIH · 5 events in 5 counties and zones

A slow moving winter storm brought significant snowfall to the mountains and valleys of southeastern Idaho. 6 to 7 inches were reported overnight on the 24th in Arco, Grouse, Craters of the Moon, and Hailey.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
5

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 PIH wrote it up.

A slow moving winter storm brought significant snowfall to the mountains and valleys of southeastern Idaho. 6 to 7 inches were reported overnight on the 24th in Arco, Grouse, Craters of the Moon, and Hailey. Through the day on the 25th, 8 inches fell in Juniper with 14 inches at the Pomerelle ski resort. Snow amounts on the 25th ranged from 4 to as high as 6 inches in the cities of Pocatello and Blackfoot in the Lower Snake River Plain.

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 Pocatello, ID wrote its last area forecast discussion before the first event at Jan 24, 9:45 AM MST, 4 hours 15 minutes earlier.

Area forecast discussion, Jan 24, 9:45 AM MST, 4 hours 15 minutes before
SOUTHEAST IDAHO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
945 AM MST WED JAN 24 2001

IR SAT IMAGERY THIS MORNING SHOWING GOOD NORTHEAST PUSH OF HIGH
LEVEL MOISTURE/CLOUD BAND INTO CWFA. KSFX WSR-88D ALSO SHOWING SOME
WEAK /LOCALIZED/ ENHANCEMENT THIS MORNING JUST NORTH OF KJER. THIS
BAND STRETCHING OUT A BIT AS EPAC LOW SPLITS WITH MOST OF THE
PROGRESSIVE ENERGY SLIDING WELL SOUTH OF THE REGION.
HOWEVER...MODELS STILL HINT AT A LITTLE BIT OF S/WV ENERGY PUSHING
NORTHEAST ACROSS FCST AREA OVERNIGHT TONIGHT AS 7H OPEN WAVE SLIDES
JUST SOUTH OF IDAHO. WITH UNSTABLE AIR MASS /7-5H LAPSE RATES IN THE
6.5-8.5 C/KM RANGE/...WILL HAVE TO GIVE SERIOUS CONSIDERATION TO
SNOW AMOUNTS AND POSSIBLE STATEMENTS. IN THE MEANTIME...WILL UPDATE
FORECAST TO REMOVE MORNING WORDING AND ADJUST FOR TREND SINCE PATCHY
FOG DISSIPATING RAPIDLY IN FACE OF ONCOMING CLOUD COVER.  DMH

BYI 35 20 31 165

.KSFX...OPERATIONAL...VCP 32.

.PIH...NONE.

PIH EJ 031/019 031/018 030 12055

Event by event

5 winter storm. Local standard time, as filed.

Winter Storm, Big and Little Wood River Region

When
January 24, 2:00 PM MST to January 25, 8:00 AM MST
Where
Big and Little Wood River Region forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, Lost River / Pahsimeroi

When
January 24, 2:00 PM MST to January 25, 8:00 AM MST
Where
Lost River / Pahsimeroi forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, Sawtooth Mountains

When
January 24, 2:00 PM MST to January 25, 4:00 PM MST
Where
Sawtooth Mountains forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, South Central Highlands

When
January 25, 12:00 AM MST to 8:00 PM MST
Where
South Central Highlands forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, Lower Snake River Plain

When
January 25, 1:00 AM MST to 6:00 PM MST
Where
Lower Snake River Plain forecast zone
Reported by
TRAINED SPOTTER

What these are

Winter Storm
A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.

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, January 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: 5229201, 5229202, 5229204, 5229205, 5229203.