Utah, 2004

Hail in Utah, June 21, 2004

June 21, 2004 · NWS SLC · 1 event in 1 county or zone

A relatively weak upper level storm system and its associated cold front moved through Idaho and into northern portions of Utah. The front combined with sufficient low level moisture to produce a severe thunderstorms and several inches of 1"-inch diameter hail.

Where it happened

Every event with a place to put it. 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
$24,000
Crop damage
None recorded
Events
1

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.

A relatively weak upper level storm system and its associated cold front moved through Idaho and into northern portions of Utah. The front combined with sufficient low level moisture to produce a severe thunderstorms and several inches of 1"-inch diameter hail. Some crops and trees were damaged by the large hail but no injuries were reported. 50 mph wind gusts toppled several tree as well.

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 21, 9:07 AM MST, 4 hours 53 minutes earlier.

Area forecast discussion, Jun 21, 9:07 AM MST, 4 hours 53 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1007 AM MDT MON JUN 21 2004

.SYNOPSIS...A COLD FRONT WILL PUSH SOUTH THROUGH CENTRAL AND
SOUTHERN UTAH TODAY.  HIGH PRESSURE ALOFT WILL BUILD OVER THE REGION
MIDWEEK...AND REMAIN IN PLACE HEADING INTO THE WEEKEND.

&&

.DISCUSSION...A SHORTWAVE IS MOVING SOUTH ACROSS UTAH TODAY. WITH
NVA AND STABILIZATION OCCURRING OVER THE NORTH WILL REMOVE POPS
NORTHERN VALLEYS TODAY. ALSO ADDED POPS FOR THE LAKE POWELL AND
SOUTH-CENTRAL ZONES. UPDATING TODAY AND TONIGHT.

RIDGE BUILDS OVER THE AREA THIS WEEK WITH WARMING TEMPERATURES.

.SLC WATCHES/WARNINGS/ADVISORIES...

UT...NONE.
ID...NONE.
WY...NONE.

&&

GIBSON

The radar

The Salt Lake City radar (KMTX), 46 km away, was scanning. The volume nearest the first event began at 21:02 UTC.

Open the radar archive at this moment

Event by event

1 hail. Local standard time, as filed.

Hail, Box Elder

When
June 21, 2:00 PM MST to 3:00 PM MST
Where
Box Elder County, Brigham City
Measured
0.01 in hail
Property damage
$24,000
Reported by
GENERAL PUBLIC
Coordinates
41.517, -112.017

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Utah in 2004Every state in 2004This day in weather historyWarnings in Utah, June 2004

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: 5422459.