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
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.
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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 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.
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 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 Salt Lake City radar (KMTX), 46 km away, was scanning. The volume nearest the first event began at 21:02 UTC.
1 hail. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2004Every state in 2004This day in weather historyWarnings in Utah, June 2004
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.