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Skywarn


Skywarn

 

The Yellow Thunder Amateur Radio Club, in cooperation with Sauk County ARES, is committed to providing accurate weather spotting information to the National Weather Service.

Our repeater has been chosen by the National Weather Service Forecast Office at Milwaukee-Sullivan for this area and region for Skywarn activity.

During any severe weather event, if you have severe weather to report and you cannot contact your local county net, feel free to check into our net to pass your traffic.

In Sauk County use the 146.880 repeater.

We encourage all participants to have proper Spotter Training.

Click HERE for a listing of Skywarn training around the State.



The following was taken from the Sulcom web-site: http://www.sulcom.info/summer_procedures/criteria/criteria.htm



Reportable Weather Conditions (Criteria)

SulCom Summer/Convective Weather Program

 

Effective March 1, 2011

Spotters are to report all of the conditions below using the guidance indicated.

The conditions and pro-words in RED text (numbered 1 through 7) normally trigger or verify a warning (also called “Severe Conditions.”)

The conditions and pro-words in BROWN text (numbered 8 through 13), although important, are considered residual (also called “Non-Severe Conditions.”)

Conditions numbered 1 - 7 are to be reported from the field team to Sullivan Weather immediately through their relay station using established SulCom Backbone communications channels and protocols.
Conditions numbered 8 - 13 should be reported from the field team to Sullivan Weather using established digital modes and protocols unless directed otherwise.

IMPORTANT NOTES!

The meteorologists may require reports for conditions that are not usually considered severe, or may not even be on this list.  This need will be conveyed as required. 

The conditions and thresholds provided below are defaults for all events/incidents unless directed otherwise during the course of the event/incident.

Severe Conditions and Pro-Words

To be reported immediately using voice channels (in order of importance :)

1.

Tornado (Waterspout if event is known to be on a body of water)

 

-

include the general direction that spotter is looking using the 16-point compass format (North-Northeast, South-Southwest, etc.) in addition to the spotter’s location

 

 

2.

Funnel Cloud

 

-

include the general direction that spotter is looking using the 16-point compass format (North-Northeast, South-Southwest, etc.) in addition to the spotter’s location

 

3.

Rotating Wall Cloud

 

-

confirm that it is rotating

 

-

include the general direction that spotter is looking using the 16-point compass format (North-Northeast, South-Southwest, etc.) in addition to the spotter’s location

 

4.

Severe Damage

 

-

tree branches greater than 3” dia. snapped, trees uprooted

 

 

-

any structural damage to buildings (includes roof damage)

 

 

-

bent, snapped or collapsed light poles or traffic lights

 

 

-

downed power lines

 

 

-

crop damage

 

 

-

cave-ins and mud slides

 

 

-

sink holes

 

 

5.

Severe Winds

 

-

58MPH OR HIGHER

 

 

-

indicate if speed is measured or estimated, but measured is always preferred

 

 

6.

Severe Hail

 

-

1 INCH OR GREATER (in numeric values only)

 

 

-

indicate if hail size is measured or estimated, but measured is always preferred

 

 

7.

Severe Flooding

 

-

water over river banks or dams

 

 

-

roads, bridges, or railroads washed out

 

 

-

impassable or closed roads

 

 

-

water out of banks that causes property damage

 

 

Click here for the Difference Between Flooding and Severe Flooding

Non-Severe Conditions and Pro-Words

To be reported via digital modes (eSpotter, e-mail to the Office Webmaster or WinLink/RMS) unless directed otherwise (in order of importance :)

Note:  Field teams that collect many reports of similar Non-Severe conditions should contact Sullivan Weather on-air for instructions.

 

8.

Minor Hail

 

-

¾ INCH TO 7/8 INCH (in numeric values only)

 

 

-

indicate if hail size is measured or estimated, but measured is always preferred

 

 

-

anything less than ¾ inch should not be reported unless asked to do so by Sullivan Weather

 

 

9.

Minor Damage

 

-

any cosmetic damage to buildings & vehicles

 

 

-

tree branches less than 3” dia. snapped causing power line damage or cosmetic damage to buildings & vehicles

 

 

10.

Minor Flooding

 

-

non-life-threatening / non-damaging water over curb

 

 

-

water out of banks but confined to low lands and bottom lands (not impacting buildings)

 

 

-

water on the roads

 

 

11.

Visibility

 

-

less than 1/2 mile

 

 

-

Indicate if due to precipitation, fog, blowing dirt or smoke

 

 

12.

Rainfall

 

-

measured amounts equal to or exceeding the rate of 1/4" per 15 minutes measured over at least 15 minutes (i. e., a measured rate greater than 1" per hour)

 

 

-

If possible, indicate the start time and the end time of the measurement period (i. e., “measured between 11:05am and 11:25am”)

 

 

13.

Minor Winds

 

-

40 mph to 57 mph

 

 

-

indicate if speed is measured or estimated, but measured is always preferred

 

 

-

anything less than 40 mph should not be reported unless asked to do so by Sullivan Weather