Well above normal temperatures are forecast to shift from the northern Plains through the Northeast U.S. over the long holiday weekend. A few strong to severe thunderstorm will be possible as well along with a potential for excessive rainfall. A tropical or subtropical depression could form off the Southeast U.S. coast over the weekend while drifting northward to northeastward. Read More >
| SPC ID # |
Date | Time (CST) |
Path Length (miles) |
Path Width (yards) |
F-Scale | Killed | Injured | County | Path |
|---|---|---|---|---|---|---|---|---|---|
| 04/30/1898 | 2230 | 3 | 1320 | 1 | 19 | Stephens | Near Duncan | ||
| 05/28/1908 | Aft | 167 | Stephens | Near Duncan and "Nellie" (10 NW Duncan) | |||||
| 53-38 | 06/19/1953 | 1720 | 0.3 | 50 | F1 | 0 | 1 | Stephens | S of Duncan (Meridian school community) |
| 55-4 | 04/11/1955 | 2130 | 15 | n/a | F0 | 0 | 0 | Stephens | Near Duncan |
| 55-7 | 04/22/1955 | 1900 | n/a | n/a | F1 | 0 | 2 | Stephens | Near Duncan |
| 57-27 | 04/20/1957 | 1830 | n/a | n/a | F1 | 0 | 1 | Stephens | 6 W Duncan |
| 57-80 | 05/24/1957 | 2225 | 3 | n/a | F2 | 0 | 0 | Stephens | 1.5 SW Duncan - Duncan |
| 60-71 | 05/19/1960 | 1650 | n/a | n/a | F? | 0 | 0 | Stephens | 2 E Duncan |
| 60-86 | 05/23/1960 | 2100 | n/a | n/a | F? | 0 | 0 | Stephens | 6 W Duncan |
| 61-55 | 05/13/1961 | 1915 | n/a | n/a | F1 | 0 | 0 | Stephens | Duncan |
| 62-9 | 05/20/1962 | 2311 | n/a | n/a | F? | 0 | 0 | Stephens | 7 N Duncan |
| 62-64 | 07/28/1962 | 1220 | 1.0 | 50 | F2 | 0 | 1 | Stephens | S part of Duncan |
| 63-3 | 03/30/1963 | 1630 | 2 | 50 | F? | 0 | 0 | Stephens | 3 NE Duncan |
| 66-1 | 02/08/1966 | 1720 | 11 | 67 | F2 | 0 | 2 | Stephens | Duncan - 2 SE Marlow |
| 70-17 | 06/11/1970 | 1445 | 10 | 167 | F1 | 0 | 2 | Stephens | S edge of Duncan |
| 70-39 | 09/07/1970 | 2030 | 0.2 | 200 | F2 | 0 | 0 | Stephens | Duncan |
| 75-5 | 02/22/1975 | 0215 | 5 | 70 | F2 | 0 | 2 | Stephens | 3 SW Duncan - Duncan Airport |
| 75-6 | 02/22/1975 | 0215 | 6 | 70 | F2 | 0 | 4 | Stephens | 3 W Duncan - W part of Duncan |
| 77-18 | 05/05/1977 | 1930 | 0.5 | 50 | F1 | 0 | 0 | Stephens | NE part of Duncan |
| 83-74 | 06/27/1983 | 2200 | 0.1 | 10 | F0 | 0 | 0 | Stephens | 2 W Duncan |
| 91-20 | 04/02/1991 | 1729 | 0.1 | 30 | F0 | 0 | 0 | Stephens | 2 W Duncan |
| 93-37 | 05/08/1993 | 1619 | 8 | 60 | F0 | 0 | 0 | Stephens | 8 SW- 4 WNW Duncan |
| 05/25/1997 | 1736 | 0.5 | 50 | F1 | 0 | 0 | Stephens | 3 S Duncan | |
| 05/08/2003 | 0008 | 3 | 200 | F1 | 0 | 0 | Stephens | 7 SE - 6 E Duncan | |
| 03/30/2006 | 1418 | 0.5 | 50 | F0 | 0 | 0 | Stephens | 6 ESE Duncan | |
| 05/18/2017 | 1800 | 0.2 | 50 | EF0 | 0 | 0 | Stephens | 3 W Duncan |
Records taken from the Storm Prediction Center archive data, "Storm Data", and data from the National Weather Service office in Norman. Data modified as described in NOAA Tech Memo NWS SR-209 (Speheger, D., 2001: "Corrections to the Historic Tornado Database").
Historic data, especially before 1950, are likely incomplete.
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