Utah, 2003

Frost and Freeze in Utah, September 18, 2003

September 18, 2003 · NWS GJT · 1 event in 1 county or zone

A dry and cold air mass settled over northeast Utah resulting in widespread freezing temperatures across the eastern Uinta Basin. The minimum temperature at the Vernal ASOS was 30 degrees.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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
None recorded
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 GJT wrote it up.

A dry and cold air mass settled over northeast Utah resulting in widespread freezing temperatures across the eastern Uinta Basin. The minimum temperature at the Vernal ASOS was 30 degrees.

The radar

The national radar mosaic for the moment the first event began.

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Event by event

1 frost/freeze. Local standard time, as filed.

Frost/Freeze, Eastern Uinta Basin

When
September 18, 5:00 AM MST to 7:00 AM MST
Where
Eastern Uinta Basin forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.125, -109.518 (the zone’s center; the record gives no point)

What these are

Frost/Freeze
Frost or temperatures at or below freezing during the growing season, usually filed for crop damage.

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, September 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 2026-10-01. Each event’s entry at NCEI: 5371950.