WIND SPEED ESTIMATE

DESCRIPTION

25-31 mph

Large branches in motion;
whistling heard in telephone wires

32-38 mph

Whole trees in motion;
inconvenience felt walking against the wind

39-54 mph

Twigs break off trees;
wind generally impedes progress

55-72 mph

Damage to chimneys and TV antennas;
pushes over shallow rooted trees

73-112 mph

Peels surfaces off roofs; windows broken;
light mobile homes pushed or overturned;
moving cars pushed off road

113-157 mph

Roofs torn off houses;
cars lifted off ground