1 avalanche, as filed by the National Weather Service.
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 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 Salt Lake City, UT wrote its last area forecast discussion before the first event at Apr 28, 9:30 AM MST, 4 hours 30 minutes earlier.
UTAH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 1030 AM MDT SAT APR 28 2001 SYNOPSIS...A STRONG COLD FRONT WILL MOVE THROUGH NORTHWEST UTAH TONIGHT WITH SHOWERS AND THUNDERSTORMS DEVELOPING. SOUTHERN UTAH WILL STAY DRY AND WARM. DISCUSSION...BASED ON THIS MORNINGS ANALYSIS...UPPER TROUGH AND A VERY STRONG LOW LEVEL BAROCLINIC ZONE HAVE MOVED INTO EASTERN OREGON. GOOD UPPER LEVEL JET AND MID LEVEL DRY SLOT WILL DEVELOP OUT AHEAD THE SURFACE FRONT THIS AFTERNOON. BUFR DATA FOR THE ETA SLC RAOB SHOWS LIFTED INDICES AROUND -2...CAPE VALUES NEAR 280...AND VERY FAVORABLE (FOR STRONG THUNDERSTORMS) VERTICAL WIND PROFILE (40 KNOTS SPEED SHEAR AND VEERING ABOUT 60 DEGREES). BUFR SOUNDINGS ARE EVEN MORE FAVORABLE NORTH TO THE IDAHO BORDER. UPDATED THE FORECAST TO ADDRESS HIGHER POPS...THE POTENTIAL FOR STRONG THUNDERSTORMS AND WINDY CONDITIONS. A CHANCE OF SHOWERS AND THUNDERSTORMS SHOULD CONTINUE ALONG THE COLD FRONT IN CENTRAL AND EASTERN UTAH SUNDAY. GUSTY SOUTHWEST WINDS AND WARM CONDITIONS WILL CONTINUE ACROSS SOUTHERN UTAH AHEAD OF THAT COLD FRONT. COOLER TEMPERATURES WITH BREEZY NORTHWEST WINDS ARE EXPECTED BEHIND THEl FRONT IN NORTHERN UTAH TOMORROW. AVN JUST IN...AGREES WITH ETA SOLUTION AND ADDS TO CONFIDENCE OF THIS MORNINGS UPDATES. SLC 362 CDC 001 MAIER .SLC...NONE.
1 avalanche. Local standard time, as filed.
Warm weather triggered a large "glide" avalanche in Stairs Gulch on Storm Mountain above Big Cottonwood Canyon, killing 2 hikers. The enormous slide was 1,000 feet wide and 10 feet deep. The slide funneled 2,000 vertical feet down into the narrow gulch.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Avalanche, P Nc Weber/P C Morgan/P W C Summit/P Sc Wasatch | 2001-04-28 | 38 | Male | Outside/Open Areas | Direct |
| Avalanche, P Nc Weber/P C Morgan/P W C Summit/P Sc Wasatch | 2001-04-28 | 39 | Male | Outside/Open Areas | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2001Every state in 2001This day in weather historyWarnings in Utah, April 2001
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: 5275515.