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QRZ! Ham Radio 1
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QRZ Ham Radio Callsign Database - December 1993.iso
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1993-11-21
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684b
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18 lines
Fujita Scale for Damaging Winds
Scale Category MPH Expected Damage
F0 Weak 40-72 Light. Tree branches broken, signs damaged
F1 Weak 73-112 Moderate. Trees snapped, windows broken
F2 Strong 113-157 Considerable. Large trees uprooted, weak
structures destroyed
F3 Strong 158-206 Severe. Trees leveled, cars overturned, walls
removed from buildings
F4 Violent 207-260 Devastating. Frame houses destroyed
F5 Violent 261-318 Incredible. Structures the size of autos moved
over 100 miles, steel-reinforced buildings
highly damaged.