Utah, 2003

Heavy Snow in Utah, June 24, 2003

June 24, 2003 · NWS SLC · 2 events in 2 counties and zones

An unseasonably cold storm system dumped a thick blanket of snow across the higher elevations of Northern Utah, catching some campers in the High Uintas by surprise. Some of the snow amounts included 6-10 inches in the High Uintas above 7000 feet, 6 inches at Alta and Brighton, and 3 inches at Solitude.

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 SLC wrote it up.

An unseasonably cold storm system dumped a thick blanket of snow across the higher elevations of Northern Utah, catching some campers in the High Uintas by surprise. Some of the snow amounts included 6-10 inches in the High Uintas above 7000 feet, 6 inches at Alta and Brighton, and 3 inches at Solitude.

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 Salt Lake City, UT wrote its last area forecast discussion before the first event at Jun 24, 8:46 AM MST, 3 hours 14 minutes earlier.

Area forecast discussion, Jun 24, 8:46 AM MST, 3 hours 14 minutes before
UTAH AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
946 AM MDT TUE JUN 24 2003

.SYNOPSIS...A COLD AND WET PACIFIC STORM SYSTEM WILL REMAIN OVER
NORTHERN AND WESTERN UTAH TODAY WITH A COOLER BUT DRY AIRMASS WILL
SPREADING OVER SOUTHEASTERN UTAH. WARMER AND DRIER CONDITIONS WILL
BEGIN ON WEDNESDAY AS THE STORM SYSTEM MOVES NORTHEAST.

.DISCUSSION...COLD SYSTEM MOVING THROUGH THE FORECAST AREA TODAY AND
TONIGHT. COLD FRONT ACROSS SOUTHEAST UTAH WITH JET OVERHEAD. EXPECT
THIS IS WHERE THE STRONGEST STORMS TO OCCUR TODAY. HOWEVER...MOISTURE
IS LIMITED. OUTSIDE OF EXTREME SOUTHERN UTAH...THE AIR MASS IS MOIST
AND UNSTABLE. SO...EXPECT ANOTHER DAY OF SCATTERED TO WIDESPREAD
SHOWERS AND THUNDERSTORMS. WILL INCREASE POPS AND CLOUD COVER OVER
CENTRAL AND SOUTHERN UTAH. SNOW LEVELS HAVE LOWERED TO AROUND 8500
FEET WITH ACCUMULATIONS OF 3-5 INCHES SINCE YESTERDAY MORNING. DO
NOT EXPECT MUCH ACCUMULATION DURING THE DAY EXCEPT ABOVE 9000 FEET.

TROUGH AXIS TO MOVE INTO WESTERN COLORADO AFTER MIDNIGHT WITH THE
FORECAST AREA STILL UNDER A CYCLONIC NORTHWEST FLOW. ENOUGH MOISTURE
AND INSTABILITY TO REMAIN OVER NORTHEAST UTAH/SOUTHWEST WYOMING FOR
SCATTERED SHOWERS AND THUNDERSTORMS.

SLC 732  CDC 110  NELSON

.SLC...RED FLAG WARNING FOR STRONG WINDS AND LOW RELATIVE
       HUMIDITY TODAY FOR SOUTHEASTERN UTAH.
Hazardous weather outlook, Jun 24, 6:11 AM MST, 5 hours 49 minutes before
IDZ024-025-UTZ001>021-WYZ021-251300-

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
515 AM MDT TUE JUN 24 2003

CORRECTED WEDNESDAY THROUGH MONDAY

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO-THIRDS OF
UTAH...EXTREME SOUTHEAST IDAHO AND EXTREME SOUTHWEST WYOMING

.DAY ONE... TODAY

SEVERE FIRE WEATHER CONDITIONS WILL OCCUR TODAY OVER EXTREME
SOUTHERN UTAH. SOUTH WINDS OF 20-35 MPH WITH GUSTS OF 35-50 MPH
WILL DEVELOP AND COMBINE WITH RELATIVE HUMIDITY DROPPING INTO THE
8-15% RANGE.

.DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURE.

WCJIN-WYSW

Event by event

2 heavy snow. Local standard time, as filed.

Heavy Snow, Western Unita Mountains

When
June 24, 12:00 PM MST to 6:00 PM MST
Where
Western Unita Mountains forecast zone
Reported by
PARK/FOREST SERVICE

Heavy Snow, Wasatch Mountains South of I80

When
June 24, 12:00 PM MST to 6:00 PM MST
Where
Wasatch Mountains South of I80 forecast zone
Reported by
PARK/FOREST SERVICE

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 Utah in 2003Every state in 2003This day in weather historyWarnings in Utah, June 2003

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: 5380323, 5380324.