HAIL DIAMETER SIZE AND WIND DESCRIPTORS
HAIL DIAMETER SIZE | DESCRIPTION |
---|---|
1/4" | Pea Size |
1/2" | |
3/4" (Severe Criteria) | Dime Size |
7/8" | Nickel Size |
1" | Quarter Size |
1 1/4" | Half Dollar Size |
1 1/2" | Walnut or Ping Pong Ball Size |
1 3/4" | Golf Ball Size |
2" | Hen Egg Size |
2 1/2" | Tennis Ball Size |
2 3/4" | Baseball Size |
3" | Teacup Size |
4" | Grapefruit Size |
4 1/2" | Softball Size |
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 |