NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Omro, WI
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
1 tropical system has passed within 75 miles of Omro, Wisconsin since 1851, 0 of them at hurricane strength; the most recent was Cristobal in 2020. Since 1950, 122 tornadoes have touched down within 25 miles, 9 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 1
- Tornadoes
- 122
- EF3 or stronger
- 9
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
10 deaths in all
What the records show for Omro
None of the 1 tropical systems was at hurricane strength as it passed Omro; the strongest was Cristobal in 2020, a tropical storm with 39 mph winds when its centre passed 51 miles away. Omro is tied for the most tropical storms and hurricanes within 75 miles among the 416 Wisconsin cities on this site. The strongest of the 122 tornadoes within 25 miles was an F5 on July 18, 1996; its path came within 25 miles. The deadliest, an F4 on April 3, 1956, killed 7 people. Of the 122, 2 had paths within 5 miles of the city centre, and 59 have come since 2000. June has had the most tornadoes, 44. The most recent tornado was on June 15, 2022. Omro has more tornadoes within 25 miles than 88% of the 416 Wisconsin cities. Hail has been reported within 10 miles 49 times since 1964, with stones up to 2.75 inches (baseball size). Of the 416 Wisconsin cities, 57% have more hail reports within 10 miles than Omro.
Compare Omro's storm record with another city →
Tropical storms and hurricanes near Omro
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 2020 | CristobalJun 10 | 51 mi | Tropical storm (39 mph) | Tropical storm |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Omro: a hurricane's worst winds sit within a few dozen miles of its centre, and inland cities are usually past that.
Tornadoes within 25 miles of Omro
By decade
- 2020s5
- 2010s31
- 2000s23
- 1990s25(2 EF3+)
- 1980s15(2 EF3+)
- 1970s8(3 EF3+)
- 1960s9
- 1950s6(2 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jul 18, 1996 | F5 | 25 mi | 13.3 mi | 0 / 12 |
| Apr 3, 1956 | F4 | in town | 11.5 mi | 7 / 50 |
| Apr 27, 1984 | F4 | 3 mi | 27.5 mi | 1 / 19 |
| Apr 21, 1974 | F4 | 9 mi | 26 mi | 0 / 35 |
| Aug 29, 1992 | F3 | 13 mi | 28 mi | 1 / 30 |
| Jun 8, 1984 | F3 | 25 mi | 29 mi | 0 / 1 |
| Jun 5, 1977 | F3 | 15 mi | 69.5 mi | 0 / 8 |
| Dec 1, 1970 | F3 | 21 mi | 13.1 mi | 0 / 0 |
| Jun 25, 1950 | F3 | 10 mi | 0.1 mi | 0 / 0 |
| Aug 9, 1979 | F2 | 23 mi | 0.1 mi | 1 / 0 |
| Aug 6, 2013 | EF2 | 21 mi | 13.07 mi | 0 / 0 |
| Jun 23, 2004 | F2 | 21 mi | 10 mi | 0 / 0 |
The strongest 12 of 122, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Omro
The Storm Prediction Center has 49 hail reports within 10 miles of Omro since 1964, made on 40 separate days. Of these, 28 were 1 inch across or larger, and 4 reached 2 inches. The largest size, 2.75 inches (baseball size), was reported on 2 days, most recently April 10, 2011. The most recent report is from September 7, 2021. April has the most reports, 9.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Omro
The nearest NOAA station with 1991–2020 climate normals is Berlin Wwtp, WI, 10 miles west of Omro at 766 feet. July is the warmest, with an average high of 81°F and low of 60°F; January is the coolest, at 25°F and 8°F. July is the wettest at 4.5 inches of precipitation on average and February the driest at 1.3 inches; the year adds up to 35.2 inches over 73 days with at least a tenth of an inch. Highs reach 90°F on about 8 days a year, almost all from June to August. Lows fall below freezing on about 161 nights a year. That 35.2 inches is more than at 96 of the 165 Wisconsin stations used on this site (58%). Winneconne, 5 miles north, has its own station (Oshkosh, WI): 33.3 inches a year, 1.9 less than here, and a July average high of 82°F against 81°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 25 | 8 | 1.4 | 4 |
| Feb | 30 | 11 | 1.3 | 5 |
| Mar | 41 | 21 | 2.8 | 5 |
| Apr | 55 | 33 | 3.6 | 8 |
| May | 67 | 46 | 4.2 | 8 |
| Jun | 77 | 56 | 4.2 | 8 |
| Jul | 81 | 60 | 4.5 | 7 |
| Aug | 80 | 58 | 3.6 | 7 |
| Sep | 72 | 49 | 3.5 | 7 |
| Oct | 58 | 38 | 2.7 | 7 |
| Nov | 43 | 26 | 2.0 | 4 |
| Dec | 31 | 15 | 1.4 | 5 |
| Year | 55 | 35 | 35.2 | 73 |
Averages for 1991–2020 at Berlin Wwtp, WI (766 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 Omro
Since 1996, the National Weather Service has logged 61 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Omro: 52 thunderstorm wind reports, 5 flash floods, 2 floods and 2 heavy rain events. They killed 1 person and injured 2, and the NWS estimated $27.9 million in property and crop damage. The strongest thunderstorm gust on record here was 85 mph, on May 4, 2010. July has had the most flash floods, 3 of 5. Of the 374 Wisconsin cities on this site with a flash flood on record, 168 have had fewer than Omro.
June 2, 2020: thunderstorm wind 7 miles from the centre of Omro — 1 killed.
June 11, 2001: thunderstorm wind in Omro — 2 injured, $4.5 million damage.
June 12, 2008: flash flood 10 miles from the centre of Omro — $23.1 million damage.
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
Flood insurance policyholders in Omro's ZIP code 54963 have filed 34 claims with the National Flood Insurance Program since 1979, and were paid $211,000 for buildings and contents, in the dollars of each year. 15% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 128 Wisconsin cities on this site with 10 or more claims, 75 have fewer than Omro.
Winnebago County, which includes Omro, has been named in 12 federal disaster or emergency declarations since 1974, 9 of them major disasters (by incident: 4 severe storms, 2 biological emergencies, 2 floods, 2 tornadoes). The latest major disaster declaration was Severe Storms and Tornadoes, on October 7, 2026. FEMA's National Risk Index gives Winnebago County a Relatively Moderate rating for natural hazard risk overall; by hazard: Relatively High for tornadoes, strong wind and lightning; Relatively Moderate for hail and inland flooding; Relatively Low for heat waves; Very Low for hurricanes. It models the county's expected loss from all 18 hazards it covers at $75.3 million a year, the 5th highest of 72 Wisconsin counties; of the hazards above, the largest share, $42.8 million (57%), 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.
Cities near Omro
- Winneconne, WI5 mi
- Oshkosh, WI10 mi
- Berlin, WI10 mi
- Larsen, WI11 mi
- Ripon, WI14 mi
- Fremont, WI14 mi
- Redgranite, WI17 mi
- Neenah, WI17 mi
- Green Lake, WI17 mi
- Greenville, WI21 mi
- Weyauwega, WI21 mi
- Menasha, WI21 mi
All Wisconsin cities →All hurricanes since 1851 →Compare Omro with another place →