WEATHER CHARTS*
| HAIL DIAMETER SIZE | DESCRIPTION |
|---|---|
| 1/4" | Pea Size |
| 1/2" | Marble Size |
| 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 |
|
WIND CHILL CHART |
|
WIND |
TEMP °F |
| CALM | 40 | 35 | 30 | 25 | 20 | 15 | 10 | 5 | 0 | -5 | -10 | -15 | -20 | -25 | -30 | -35 | -40 | -45 |
| 5mph | 36 | 31 | 25 | 19 | 13 | 7 | 1 | -5 | -11 | -16 | -22 | -28 | -34 | -40 | -46 | -52 | -57 | -63 |
| 10mph | 34 | 27 | 21 | 15 | 9 | 3 | -4 | -10 | -16 | -22 | -28 | -35 | -41 | -47 | -53 | -59 | -66 | -72 |
| 15mph | 32 | 25 | 19 | 13 | 6 | 0 | -7 | -13 | -19 | -26 | -32 | -39 | -45 | -51 | -58 | -64 | -71 | -77 |
| 20mph | 30 | 24 | 17 | 11 | 4 | -2 | -9 | -15 | -22 | -29 | -35 | -42 | -48 | -55 | -61 | -68 | -74 | -81 |
| 25mph | 29 | 23 | 16 | 9 | 3 | -4 | -11 | -17 | -24 | -31 | -37 | -44 | -51 | -58 | -64 | -71 | -78 | -84 |
| 30mph | 28 | 22 | 15 | 8 | 1 | -5 | -12 | -19 | -26 | -33 | -39 | -46 | -53 | -60 | -67 | -73 | -80 | -87 |
| 35mph | 28 | 21 | 14 | 7 | 0 | -7 | -14 | -21 | -27 | -34 | -41 | -48 | -55 | -62 | -69 | -76 | -82 | -89 |
| 40mph | 27 | 20 | 13 | 6 | -1 | -8 | -15 | -22 | -29 | -36 | -43 | -50 | -57 | -64 | -71 | -78 | -84 | -91 |
| 45mph | 26 | 19 | 12 | 5 | -2 | -9 | -16 | -23 | -30 | -37 | -44 | -51 | -58 | -65 | -72 | -79 | -86 | -93 |
| 50mph | 26 | 19 | 12 | 4 | -3 | -10 | -17 | -24 | -31 | -38 | -45 | -52 | -60 | -67 | -74 | -81 | -88 | -95 |
| 55mph | 25 | 18 | 11 | 4 | -3 | -11 | -18 | -25 | -32 | -39 | -46 | -54 | -61 | -68 | -75 | -82 | -89 | -97 |
| 60mph | 25 | 17 | 10 | 3 | -4 | -11 | -19 | -26 | -33 | -40 | -48 | -55 | -62 | -69 | -76 | -84 | -91 | -98 |
|
HEAT INDEX |
| TEMP |
RELATIVE HUMIDITY |
| °F | 90% | 80% | 70% | 60% | 50% | 40% |
| 80 | 85 | 84 | 82 | 81 | 80 | 79 |
| 85 | 101 | 96 | 92 | 90 | 86 | 84 |
| 90 | 121 | 113 | 105 | 99 | 94 | 90 |
| 95 | 133 | 122 | 113 | 105 | 98 | |
| 100 | 142 | 129 | 118 | 109 | ||
| 105 | 148 | 133 | 121 | |||
| 110 | 135 |
* Source: NOAA/National Weather Service