Net participants are encouraged to share weather reports from what they’re observing at their location. When reporting information to the net, please use the following guidelines:
- Tornadoes, funnel clouds, rotating wall clouds
- Damaging winds that blow down trees and power lines or damage buildings (see below)
- Hail marble size or larger (0.50”+ in diameter)
- Flooding of homes, buildings, or major roadways that impedes traffic
- Whiteout snow conditions with visibility below .5 miles
- Snowfall rates estimated to be 2”+ per hour.
When reporting, if you’re uncertain of the severity please state that in your report to net control.
Damaging Wind Criteria
|Wind Speed (mph)||Visual Effect|
|20 – 30 mph||Small trees in motion.|
|30 – 40 mph||Large trees in motion, whistling in overhead utility lines.|
|40 – 50 mph||Whole trees in motion; Garbage cans/similar items blown over.|
|50 – 65 mph||Twigs/Small branches break off trees; Damage to fences/shingles|
|65 – 80 mph||Large branches break off of trees; Shallow rooted trees uprooted.|
|80 – 100 mph||Extensive tree/roof damage; Trailer homes overturned.|
|Ping Pong Ball||1.50”|
Snow Measurement Reference
Measuring snow in the winter is not as easy as walking down your driveway with a ruler, there are some things you should keep in mind, especially in Colorado. Winter storms are usually accompanied by wind in our geographic region which can quickly skew snow measurements.
- Take measurements in a location where drifting does not usually occur
- Locations sheltered from the weather (close to buildings, under trees) should be avoided
- Make sure you’re measuring on a flat surface if you don’t have a snow board. Things like picnic table, decks work well. If you don’t have that option, measure on a flat portion of your yard away from your home/garage.