Morgan County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Morgan County: 0.
2. Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.

Storm Prediction Center severe weather database, 1950 to 2025.

Every large fire

1. Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.

Smoke overhead

1. A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.

NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.

Claims by ZIP code

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.

River crests

River gauges

1. Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.

NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.

1. The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.

NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.

Every earthquake of magnitude 4 or more within 50 miles

1. Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the county boundary (or inside the county).
2. Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).

USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.

Mapped landslides

Mapped by UT GRC (2,260), USGS Conterminous (163).

1. Landslides mapped in the USGS compilation of landslide inventories across the United States (version 3.0, 2025), rated probable or better. The compilation joins inventories made by federal and state agencies for different purposes and areas, so the number mapped in a county reflects how closely it has been surveyed as much as how often its slopes fail. An area with few records may simply not have been mapped. Deaths are as recorded in the inventories; a slide listed in two inventories is counted once.

USGS Landslide Inventories across the United States, version 3.0, retrieved October 27, 2026.

More event types since 1996

Costliest events since 1996

1. Apr 1, 2023Heavy Snow, Wasatch Back$1.0 million
   National Weather Service narrative

   A snowfall accumulation of 15.3 inches with 0.83 inches of snow water equivalent was observed at Wanship. Other snowfall observations include 12.8 inches with 0.76 inches of snow water equivalent at Oakley and 12.5 inches with 0.92 inches of snow water equivalent at Eden-Liberty. Three structural collapses occurred on April 3 in Park City. The first involved a garage, the second was a chimney, and the third was related to the home.

2. Feb 16, 2026Winter Storm, Wasatch Mountains I-80 North$500,000
   National Weather Service narrative

   A powerful winter storm brought heavy snow and strong winds to the area. Reported snow observations include 27 inches of snow in the Logan Mountains (3.1 inches water), 23 inches of snow at Powder Mountain (2.5 inches water), and 18 inches of snow at Snowbasin - Base (1.9 inches of water). Additionally, several SNOTEL stations including Lightning Ridge, Ben Lomond Peak, and Monte Cristo recorded from 1.6 to 2.7 inches of snow water equivalent, resulting in approximately 21 to 37 inches of snow. Some peak wind gust observations through the event include 97 mph at Snowbasin - Straw Top, 78 mph at Snowbasin - Strawberry Tower 15, and 76 mph at Ogden Peak. Inclement conditions also…

3. Jan 5, 2026Winter Weather, Wasatch Back$60,000
   National Weather Service narrative

   Utah Highway Patrol and Utah Department of Transportation reported a multi vehicle crash near mile post 5 on US-40 westbound between Mayflower and Quinns. This accident resulted in a period of road closure for cleanup, and is assumed to be the result of ongoing winter weather.

4. Aug 30, 2000Flash Flood$50,000
   National Weather Service narrative

   Heavy monsoonal rains were widespread over Northern Utah. The heaviest rain fell in Weber, Davis and Morgan Counties, with amounts generally between 3.00 and 3.70 inches. There were numerous reports of flooding, with the hardest hit areas being Roy, Kaysville, Ogden, and North Salt Lake. A number of homes reported water in their basements, with storm sewers and streets becoming overwhelmed by the deluge. Some homes in Roy had sewage back up into their basements as well. All-in-all, it was a giant mess.

5. May 23, 2011Flood$50,000
   National Weather Service narrative

   Lost Creek reached flood stage for the last week of May. Multiple bridges along Lost Creek were impacted by rising flood waters, and low lying roads were damaged as well.

6. Jan 21, 2012Flood$50,000
   National Weather Service narrative

   Heavy rain caused flooding in and around the town of Morgan, Utah, with the most damage occurring along Morgan Valley Drive. Four residential basements were flooded in this area, and water flowed over some roadways.

7. Dec 20, 1996Heavy Snow, Wasatch Mountains I80 North$50,000
   National Weather Service narrative

   A broad trough spread a series of disturbances into Utah during this time. Periods of heavy snow occurred in the mountains and Cache valley. Alta received a storm total of 47 inches. In southern Utah, Duck Creek Village reported 21 inches. Logan, in the Cache valley, measured 12 inches. On the afternoon of the 23rd an avalanche closed state route #158. Some 200 skiers were trapped at the Powder Mountain ski resort for 8 hours until the road reopened. Numerous traffic accidents due to slick and icy roadways were reported during this time as well.

8. Jan 2, 1997Heavy Snow, Wasatch Mountains I80 North$20,000
   National Weather Service narrative

   The subtropical moisture in a southwesterly flow led to heavy snow in Utah's northern mountains. Generally 10-20 inches of snow fell during this time. The Alta ski resort measured the most with 20 inches. A rock slide closed Ogden canyon for awhile on the morning of the 3rd. No other significant damage was reported.

9. Mar 28, 2023Avalanche, Wasatch Mountains I-80 North$20,000
   National Weather Service narrative

   At around 11:30 am, a large avalanche occurred near the Gold Ridge / Hardscrabble backcountry area, approximately 7 miles ESE of Farmington. At the time of the avalanche, one snowcat carrying two occupants was caught in the slide and buried. A second snowcat and its five occupants were able to quickly uncover one of the buried snowcat occupants, who had sustained minor head injuries. This occupant was subsequently taken to an area hospital by ambulance. The second occupant was buried with their leg trapped beneath the snowcat, but was uncovered enough that they could breath. When rescue crews arrived, they were able to uncover the buried occupant, who was then transported by…

10. Dec 20, 2003Heavy Snow, Wasatch Mountains I80 North$20,000
    National Weather Service narrative

    A winter storm brought heavy snow and slick roads to much of Northern Utah, causing several accidents. The snow was also blamed for a fatality, as a driver lost control of his vehicle on the snowy roads between Grantsville and Wendover, rolling it into the medium. Some snow totals for this storm were 16 inches at Snowbird and Solitude, 14 inches at Alta, 12 inches at Sundance, 8 inches in Centerville, Bountiful and East Layton, 6 inches in South Ogden and the SLC Avenues, and 4 inches in Clearfield, Alpine, Heber City, Morgan and Laketown.

1. Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.

NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.

All-time high

106°F3 times, most recently Jul 12, 2024

All-time low

−13°FJan 25, 1949

Warmest night

80°F2 times, most recently Jul 27, 2026

Coldest day

10°FJan 6, 2017

Wettest day

3.36 inAug 4, 1951

Hottest year

2024mean 57.0°F

Coldest year

1951mean 49.5°F

Wettest year

194922.32 in

Driest year

20207.86 in

Station Ogden Hinkley Airport (USW00024126), 4,449 ft elevation, 17.0 miles from the population centre. Daily records from 1948 to October 25, 2026; 94.3% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.

NOAA NCEI Global Historical Climatology Network Daily.

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.

Neighbouring counties

• Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
• Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
• Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
• Storm events NOAA NCEI Storm Events Database, through 2026.
• Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
• Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
• Weather records NOAA NCEI Global Historical Climatology Network Daily, station USW00024126.
• River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
• Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
• Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
• Landslides USGS Landslide Inventories across the United States, version 3.0 (2025).
• Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.

Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.