Using the information below as a guide, this is the minimum criteria to send to the NWS during any communications. If you do not know how to call the nearest weather service office, dial 9-1-1 and they will pass the information to the NWS for the affected area. Some areas may not use 9-1-1, so inform yourself where to contact if radio contact is not available. You need to be familiar with the area and know your directions; which direction is North |
Special Note:
Keep radio transmissions short, direct and leave any frequencies actively in use for weather as chatter free as possible. Use the frequencies page to contact the Wichita NWS, call their toll-free number or dial 9-1-1. |
| Wind Speed |
Winds in excess of 58mph - tree limbs are usually the approximate size of your wrist on the ground |
| 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 |
|
| Rainfall |
Estimated rainfall that exceeds 1" per hour |
| Hail |
1" or quarter sized, use largest hail you have observed. |
| HAIL DIAMETER SIZE |
DESCRIPTION |
| 1/4" |
Pea Size |
| 1/2" |
|
| 3/4" |
Dime Size |
| 7/8" |
Nickel Size |
| 1" (Severe Criteria)* |
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 |
|
| Tornadoes |
A tornado is a violent column of air rotating from the base of the clouds and touching the ground. You should be able to see debris at the ground level. This often is occuring with a lowering of a funnel from a wall cloud. Observe for rotation. Remain a safe distance away. Please give the following in your report immediately - slowly, methodically, and brief as possible:
- Your location - use cross roads or named roads, approx distance and direction from any town; other identifiers are grain elevators
- Time of observation
- Your distance and direction from the observed report
- Define the tornado - "is it a rope, classic or wedge"
- Direction the tornado is moving, approximate forward speed
|
| Flooding |
Rivers, creeks and streams over their banks, water over roads |
Winter Weather Reporting is Critical
Observations are not limited to summer storms only.
The NWS is especially interested in reports when snow is falling and radar echoes are not always able to detect the amount of snowfall and conditions on the ground. Please pass on the following information to your weather service office
|
| Sleet, ice |
Snow fall on ground too warm to retain snow will allow accumulation of ice on power lines, trees, cars and elevated roads and bridges. |
| Snow-packed, slush |
Report observations of roads that are snow packed and slushy. These can become dangerous conditions if the temperature falls even a few degrees. |
| Snow fall |
Meausrements in excess of 2". Wind can cause reduced visibility and drifting. Report measurements to nearest 1/10" |