|
|
|
Weather and Emergency PreparednessDon't get scared -- get trained!
|
| Event | Description |
|---|---|
| Tornado: | What...Tornado: Is it rotating ? If not, it's a rain shaft. Is it in contact with the ground ? If Not, it's a Funnel Cloud. Is there on going damaging? When....Now ? Past ? Beginning? Where... Location ? |
| Funnel Cloud: | What.....Funnel Cloud: Is it rotating? Is it in contact with the ground? If so, it's a Tornado. When....Now? Past? Just Beginning? Where... Location? |
| Wall Cloud: | When.....Now? Just Beginning? How long observed? Is it rotating? Where... Location? |
| Severe Winds: | What......Damage... What type and kind of severe wind damage ? Use the Beaufort Wind Speed Chart When.....Now ? Past ? Just Beginning ? Where.... Location ? General Examples of Severe Wind Damage: Power lines blown down Windows broken by wind Permanent signs blown down Radio tower/large antenna blown down Mobile home damaged Large roof area damaged Structure damage to buildings by winds More than one large tree blown over |
| Hail: | Do not use "Marble" size When.....Now - on going event ? Where.... Location ? What Size...How Large... Pea..............1/4 inch. Dime............3/4 inch. Nickel...........7/8 inch. Golf ball.......1 inch Quarter........ 1 inch. Baseball.......2 1/4 inch. Softball.........3 to 4 inch And if in Western and Northern Texas...cantaloupe...basketball |
| Flash Flooding: | What..... How Deep ? How Extensive? Are the animals walking two by two?? Is there a immediate threat to persons or property? When....On Going? Just Beginning? Where... Location? |
| Rain: | When............Now ? Just Beginning? Is it so heavy, you can't drive? Where........... Location? How Much.....At a rate of 2 inches per hour? |
| Hail Diameter | Description |
|---|---|
| 1/4" | Pea Size |
| 1/2" | Marble Size (say "half-inch") |
| 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 | Effects |
|---|---|
| 25-31 | Large branches in motion; whistling heard in telephone wires |
| 32-38 | Whole trees in motion; inconvenience felt walking against the wind |
| 39-54 | Twigs break off trees; wind generally impedes progress |
| 55-72 | Damage to chimneys and TV antennas; pushes over shallow rooted trees |
| 73-112 | Peels surfaces off roofs; windows broken; light mobile homes pushed or overturned; moving cars pushed off road |
| 113-157 | Roofs torn off houses; cars lifted off ground |
 |
Copyright (c) 2002 - 2010 by Harold Melton, KV5R. All Rights Reserved. |
 |
