NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Alpine, UT
Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.
Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated
No tropical storm or hurricane has passed within 75 miles of Alpine, Utah since records began in 1851. Since 1950, 21 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 21
- EF3 or stronger
- 0
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
1 deaths in all
What the records show for Alpine
The highest rating among the 21 tornadoes within 25 miles is F2, reached 2 times; the most recent, on August 11, 1999, came within 19 miles. Of the 21, one had a path within 5 miles of the city centre, and 3 have come since 2000. August and September have had the most tornadoes, 5 each. The most recent tornado was on September 7, 2013. Alpine has more tornadoes within 25 miles than 77% of the 99 Utah cities on this site. Hail has been reported within 10 miles 29 times since 1985, with stones up to 1.75 inches (golf ball size). Alpine has more hail reports within 10 miles than 81% of the 99 Utah cities.
Compare Alpine's storm record with another city →
Tornadoes within 25 miles of Alpine
By decade
- 2010s1
- 2000s2
- 1990s6
- 1980s6
- 1970s2
- 1960s4
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Aug 11, 1999 | F2 | 19 mi | 4.3 mi | 1 / 80 |
| Feb 9, 1965 | F2 | 25 mi | 0.1 mi | 0 / 0 |
| Jul 8, 1989 | F1 | 12 mi | 0.2 mi | 0 / 0 |
| Mar 2, 1989 | F1 | 24 mi | 0.2 mi | 0 / 0 |
| Jan 10, 1989 | F1 | 10 mi | 0.2 mi | 0 / 0 |
| Dec 2, 1970 | F1 | 11 mi | 1 mi | 0 / 0 |
| Aug 14, 1968 | F1 | 22 mi | 0.1 mi | 0 / 0 |
| Apr 17, 1966 | F1 | 24 mi | 0.1 mi | 0 / 0 |
| Jul 9, 1965 | F1 | 12 mi | 0.4 mi | 0 / 0 |
| Sep 7, 2013 | EF0 | 5 mi | 0.1 mi | 0 / 0 |
| May 30, 2005 | F0 | 7 mi | 0.2 mi | 0 / 0 |
| Aug 21, 2001 | F0 | 20 mi | 0.1 mi | 0 / 0 |
The strongest 12 of 21, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Alpine
The Storm Prediction Center has 29 hail reports within 10 miles of Alpine since 1985, made on 26 separate days. Of these, 16 were 1 inch across or larger, and none reached 2 inches. The largest size, 1.75 inches (golf ball size), was reported on 2 days, most recently August 4, 1991. The most recent report is from August 13, 2024. August has the most reports, 14.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Alpine
The nearest NOAA station with 1991–2020 climate normals is Alpine, UT, in Alpine at 5,100 feet. July is the warmest, with an average high of 90°F and low of 59°F; January is the coolest, at 39°F and 22°F. January and April are the wettest at 2.5 inches of precipitation on average and July the driest at 0.6 inches; the year adds up to 21.0 inches over 55 days with at least a tenth of an inch. Highs reach 90°F on about 36 days a year, almost all from June to September. Lows fall below freezing on about 133 nights a year. Snowfall averages 74.4 inches a year, most of it in December. That 21.0 inches is more than at 46 of the 58 Utah stations used on this site (79%). American Fork, 5 miles south, has its own station (Pleasant Grove, UT): 16.7 inches a year, 4.3 less than here, and a July average high of 93°F against 90°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 39 | 22 | 2.5 | 7 | 17.4 |
| Feb | 44 | 25 | 2.0 | 6 | 13.6 |
| Mar | 54 | 32 | 2.0 | 6 | 9.6 |
| Apr | 61 | 37 | 2.5 | 7 | 6.2 |
| May | 71 | 44 | 2.4 | 6 | 0.5 |
| Jun | 82 | 51 | 1.0 | 2 | 0.0 |
| Jul | 90 | 59 | 0.6 | 2 | 0.0 |
| Aug | 87 | 58 | 1.0 | 3 | 0.0 |
| Sep | 79 | 49 | 1.3 | 3 | 0.0 |
| Oct | 65 | 39 | 1.8 | 4 | 1.6 |
| Nov | 50 | 29 | 1.6 | 5 | 8.0 |
| Dec | 39 | 22 | 2.3 | 6 | 17.5 |
| Year | 63 | 39 | 21.0 | 55 | 74.4 |
Averages for 1991–2020 at Alpine, UT (5,100 ft), from NOAA NCEI U.S. Climate Normals. Normals describe the station; the farther a place is from it, and the bigger the difference in height, the more its weather can differ.
Floods, thunderstorm wind and lightning near Alpine
Since 1996, the National Weather Service has logged 58 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Alpine: 41 thunderstorm wind reports, 12 flash floods, 4 floods and 1 lightning strike. They killed 1 person and injured 2, and the NWS estimated $17.9 million in property and crop damage. The strongest thunderstorm gust on record here was 87 mph, on July 1, 2025. August has had the most flash floods, 4 of 12. Of the 90 Utah cities on this site with a flash flood on record, 72 have had fewer than Alpine.
August 30, 2015: lightning strike 6 miles from the centre of Alpine — 1 killed.
August 21, 2021: thunderstorm wind 3 miles from the centre of Alpine — 1 injured, $2,000 damage.
June 21, 2005: thunderstorm wind 7 miles from the centre of Alpine — 1 injured.
Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.
Flood insurance claims, disaster declarations and FEMA risk ratings
Utah County, which includes Alpine, has been named in 13 federal disaster or emergency declarations since 1983, 5 of them major disasters (by incident: 6 fires, 4 floods, 2 biological emergencies, 1 coastal storm). The latest major disaster declaration was Flooding, on December 23, 2023. FEMA's National Risk Index gives Utah County a Relatively High rating for natural hazard risk overall; by hazard: Very High for lightning; Relatively High for strong wind; Relatively Moderate for inland flooding and heat waves; Relatively Low for tornadoes; Very Low for hail. It models the county's expected loss from all 18 hazards it covers at $287.9 million a year, the 2nd highest of 29 Utah counties; of the hazards above, the largest share, $63.9 million (22%), is from inland flooding.
Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. 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).
Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets 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).
What counts as a pass, the distances and the sources: how this storm history is built.