2010 Skywarn Training Dates!

02/27/10 Saturday Garden City - Maplewood Community Center - 10am - 12:30 PM

03/29/10 Monday Livonia - Public Library - 7pm - 9:30 PM

04/24/10 Saturday Garden City - Maplewood Community Center - 10am - 12:30 PM

05/07/10 Friday Trenton - MCRC 7pm - 9:30 PM


In conjunction with the National Weather Service (NWS), Wayne County Emergency Management Division and the Radio Amateur Civil Emergency Service (RACES), Skywarn Spotters work diligently to provide information to disseminate the earliest possible warning of severe weather. Although the NWS has improved their ability to detect severe thunderstorms over the past twenty years, the human eye is one of the most valuable resources to local emergency management entities and the NWS.

Since April of 1965 the NWS, RACES, and local emergency management officials have worked together to train tens of thousands of SKYWARN volunteers. These individuals are trained to understand the characteristics of a storm system that could become become severe, and cause injury to person and peroperty damage.

Public Safety, RACES, or concerned citizens who want to raise their level of awareness regarding severe weather should consider attending Skywarn training courses. These classes are are usually held in late winter and early spring.  Dates and locations of "Spotter"classes can be found here. The Advanced and Basic spotter guides are available for download.

 


Wayne County Skywarn Net Frequencies

145.33 + 100hz
147.16 + 100hz

NWS White Lake MICON Frequency
442.175 + 123 Hz

County Skywarn
Frequencies



OTHER TRAINED SPOTTER REPORTING OPTIONS

Packet Reporting

MSYS-BBS 145.76 K8DTX

Online Reporting

E-Spotter 


 

SPOTTER REPORTING GUIDELINES

Condition RedRed

Under Condition Red spotters should only report sightings of:

  • Tornadoes
  • Funnel Clouds
  • Wall Clouds
  • 3/4 >diameter or larger hail (dime size=3/4 inch)

Spotters should otherwise maintain radio silence. Check-ins and other less serious reports are not permitted under Condition RED.

 

 

Condition Yellow

Under Condition YELLOW, spotter reports are restricted to RED reports plus other extreme storm effects such as:

  • Intense and frequent lightning
  • Hail (give approximate diameter)
  • Damaging winds (brief reports of damage observed)
  • Torrential rain (with near zero visibility)
  • Flooding over the curbs

Spotters should otherwise maintain radio silence. Check-ins and other less serious reports are not permitted under Condition Yellow

 

 

Condition GreenGreen

Under Condition GREEN, spotters may report any storm effects, at the discretion and directions of the net control station, such as:

  •  Gust front arrival
  •  Approaching thunderstorm
  •  Heavy rain, etc.

SPOTTERS REPORTING PROCEDURES

The most simple method of reporting is called the "TEL SYSTEM":

  • T = Time of Observation

  • E = Effect (Hail, Winds, Etc.)

  • L = Location

TIME of the observation is very important in the spotter's report. For example, a tornado moving at 50 MPH will travel over 4 miles in 5 minutes. The time of the sighting will help national weather service officials determine the properties of the storm. All reports should use "local" time.

EFFECTS of the storm system can include such things as hail, heavy rain, wall cloud, a funnel cloud or tornado. Description of the effects should be brief and concise.

LOCATION of the storm should be indicated as closely as possible, using reference to the nearest town (i.e. 2 miles east of Ida) or the nearest major road or street intersections, including an estimate of the direction that the storm is traveling. Give your location with every report.

Here are some examples of how a report might be made:

  • 3:47 - Gust front with 50 mph winds at Secor and Morocco heading to the northeast.

  • 3:50 - 1/2 inch hail at Secor and Morocco moving to the northeast.

  • 3:56 - Wall cloud 1 mile south of Ida moving toward the northeast at 20 mph.

  • 4:05 - funnel cloud at S. Custer and Strasburg heading to the northeast.

If a SKYWARN net is not already in progress when threatening weather appears, by all means start one up. Contact your Emergency Coordinator or an Assistant EC, (via phone if necessary). He will take over the net as soon as possible. In the meantime, report any funnel clouds/tornadoes to Central Dispatch via 911

 
Report Limitations
  • Funnel Cloud Aloft
  • Tornado Touchdown
    (including direction and estimated speed of travel, if possible.)
  • Cloud Rotations (Sustained)
  • Damaging Winds (Above 58 mph)
  • Large Hail (1/2 Inch or larger)
  • Flooding in Progress
  • Any Damage from the above

Spotters Aids

  • Hail - Estimating Size
  • Pea Size = 1/4 inch
  • Dime Size= 1/2 inch
  • Nickel Size = 3/4 inch
  • Quarter Size = 1 inch
  • Golf Ball Size = 1 3/4 inch

 

Estimating Wind Speed

  • 22-31 mph-Large branches in motion
  • 32-38 mph-Whole trees in motion
  • 39-54 mph-Twigs break off trees
  • 55-72 mph-Shallow trees uprooted
  • 73-112 mph- Scattered structural damage
     
     

     

 

© 2010 K8DNS