A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >
| Hail Diameter Size | Description |
|---|---|
|
1/4" |
Pea Size |
|
1/2" |
Marble Size |
|
3/4" |
Penny Size |
|
7/8" |
Nickel Size |
|
1"(Severe Criteria) |
Quarter Size |
|
1 1/4" |
Half Dollar Size |
|
1 1/2" |
Walnut/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 Estimation | Description |
|---|---|
|
less than 1 mph |
Calm; smoke rises vertically |
|
1 - 3 mph |
Direction of wind shown by smoke drift, |
|
4 - 7 mph |
Wind felt on face; leaves rustle; |
|
8 - 12 mph |
Leaves and small twigs in constant motion; |
|
13 - 18 mph |
Raises dust and loose paper; |
|
19 - 24 mph |
Small trees in leaf begin to sway; |
|
25 - 31 mph |
Large branches in motion; |
|
32 - 38 mph |
Whole trees in motion; |
|
39 - 46 mph |
Breaks twigs off trees; |
|
47 - 54 mph |
Slight structural damage |
|
Severe begins at 58 mph |
|
|
55 - 63 mph |
Damage to chimneys and TV antennas; |
|
64 - 74 mph |
Rarely experienced; |
|
above 75 mph |
Very rarely experienced |
Wind speed estimation taken from the Beaufort Scale.
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