Master Plan
3
EF-0 65-85
EF-1 86-110
EF-2 111-135
EF-3 136-165
EF-4 166-200
EF-5 > 200
Nashua Fire Rescue, NH
Figure 20. Tornado Intensity, Enhanced Fujita Scale
Wind Speed,
Typical Damage
Minor or no damage. Peels surface off some roofs; some damage to
gutters or siding; branches broken off trees; shallow-rooted trees pushed over.
Confirmed tornadoes with no reported damage {i.e., those that remain in
open fields) are always rated EF-0.
Moderate damage. Roofs severely stripped; mobile homes overturned or
badly damaged: loss of exterior doors; windows and other glass broken.
Considerable damage. Roofs torn off well-constructed houses; foundations
of frame homes shifted; mobile homes completely destroyed; large trees
snapped or uprooted; light-object missiles generated; cars lifted off ground.
Severe damage. Entire stories of well-constructed houses destroyed; severe
damage to large buildings such as shopping malls; trains overturned; trees
debarked; heavy cars lifted off the ground and thrown; structures with weak
foundations are badly damaged.
Devastating damage. Well-constructed and whole frame houses
completely leveled; cars and other large objects thrown and small missiles
generated.
Extreme damage. Strong-framed, well-built houses leveled off foundations
are swept away; steel-reinforced concrete structures are critically damaged;
tall buildings collapse or have severe structural deformations; some cars,
trucks, and train cars can be thrown approximately 1 mile (1.6 km).
Since 1956, NOAA reports that 19 tornados have touched down in Hillsborough County. The dates and
Enhanced Fujita Scale Classification are as follows.
ESC
Figure 21. Tornado Touchdowns in Hillsborough County, 1956-2019
Emergency Services
Consulting International
| Date | Enhanced Fujita Scale
6/27/1956 Data Not Available
7/2/1961 EF-2
7/21/1961 EF-1
5/9/1963 EF-1
5/20/1963 EF-1
6/9/1963 EF-2
8/28/1965 EF-1
7119/1966 EF-1
7117/1968 EF-2
8/20/1968 EF-1
8/20/1968 EF-3
7/16/1970 Data Not Available
7/19/1972 EF-1
6/19/1978 EF-O
7/5/1984 EF-1
7/5/1984 EF-1
6/16/1986 EF-1
7[3/1997 EF-2
5/31/1998 EF-2
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