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WEATHER CONDITION REPORTING FOR AMATEUR RADIO OPERATORS By Mike Davis, N4FOZ Over the years, there have been many questions as to the proper way, format, and when to report incidents, such as weather events, over Ham Radio. It first should be said that way before there were organized groups, such as Storm Watch, Storm Ready, NWA, AMS, Skywarn, IBISEYE, Maritime Svc. Net, Intercontinental Net, Hurricane Watch Net, StormTrack, the National Warning System (NAWAS), and more, Amateur Radio operators from all over have been reporting events with great success to various sources including other Hams, county Emergency Operations Center, Law Enforcement, National Hurricane Center, local and national news media. This again relates to the fact that by choosing and maintaining your own equipment, and learning how to use it, it makes one able to communicate during almost any situation, when properly prepared. This is why I have been interested in Ham Radio and emergency communications for the past 45 years. We, as Amateur Radio Operators, can learn in an unlimited way and report what we observe. It is an excellent concept that dates back to the beginning of communication and spans much more than just talking about the weather. This is the first of multiple articles on the subject. Even though Weather will be the primary focus, there may be discussions of other disasters in which Ham Radio communication is important. There are various areas of Weather Reporting. Let’s talk about each one: Weather Forecasting: Weather is known as an “inexact science”. Hams, many of whom are certified Meteorologists, predict future weather for Storm Chasing, contingent emergency deployment strategy, and as a challenge to learn and become better at their craft. Weather Nowcasting: A fairly new term for the real time observation and interpretation of actual conditions and data, such as RADAR. Nowcasters provide immediate information concerning the dynamics of weather events. Weather LSR Reporting: LSR stands for “Local Storm Reports”. After the storm has passed, gathering information of damages assists in disaster relief and improves weather forecasts of the future.
Weather information is passed by persons with varied backgrounds:
There are common sense and important things to know when reporting Severe Weather. Some basic tips and sayings: “If it don’t spin…Don’t call it in.” - A quote from legendary NWSFO-MIC Mike Sarbonis. If it does not spin, it is not a Tornado. If it does not spin, it is not a Tornadic Wall Cloud. There are lots of clouds that hang down, ie: Scud, and large storm clouds, Cumulonimbus, that look menacing, but have not reached the stage of Storm Scale Rotation. Sunshine Reports: Sunshine Reports, the name use for superfluous information, are inevitable. “It’s sunny now”, “It’s blowing up a storm”, etc, should be avoided to clear the way for severe reports when radio traffic is intense. The changing status of Severe Weather Criteria will be discussed in later parts. Scanner Reports and other Duplicates: Transmitting reports, as if they are being witnessed in real time, when in fact, they are reports from commercial radio, TV, or a Scanner, are a problem for several reasons. It has been found that weather and emergency agencies get confused as to how many storms, such as Tornadoes, actually are happening at a given moment. This can cause undue stress and unnecessary actions. It can also lead emergency personnel to the wrong place at the wrong time. This particularly occurs when unspecified, time delayed, 3rd party reports are given. Many Spotters, during their normal daily routine, are in remote locations and, frequently, in vehicles. It is important to feel the wind and know how storms progress: Sudden wind shifts. Strong winds that change from, for example, Southeast to suddenly Southwest is a cause for concern. The keen observer knows they may be in the path of a storm and should move away immediately, usually toward the South and East. The Green Sky. Ever seen one? You were probably looking at Hail. Knowing Flood Prone Areas. Know your escape routes. It takes less water than most envision to knock you or your vehicle off balance.
The Narrowing Cone of reported information: This concept seems to be rarely taught, but is one of the most important in any emergency radio communication. There should be a narrowing cone of relayed information as the status of the emergency increases. In the public service sector, they use the term, “Hold all but emergency traffic”, when things get hectic. In example for Hams, if a Severe Thunderstorm Watch, meaning conditions are favorable, has been issued, then keeping radio chatter down and making shorter, spaced transmission is the best method. But, if for example, a Tornado Warning, meaning a threat is eminent, is broadcast it is best to narrow the cone of information and transmit only actual live sightings and Severe Criteria Information, to the center gathering the information. On the other side of that equation is the information provided to the Ham in their area. Of prime importance is knowing the location, the “Point of Entry”, of a storm into your area, and the path in which a storm or other emergency, such as smoke or toxic cloud is predicted. If the emergency communicator does not provide this important data, ask them!
Weather Reporting Criteria: This information shows what is established Criteria and what is not: - Flash Flooding Each community designates what constitutes Flash Flooding, but if water is on the streets over ankle deep, it is reportable. - High Winds Greater than 58mph is Criteria, but many times anything greater than 45mph is called in. - Wall Clouds/Funnel Clouds/Tornadoes If it spins, call it in. Funnel Clouds do not touch the ground. Tornadoes do. In either event, make sure what you are seeing and call it in. If it does not spin, it is not a Tornado. Lightning, although a potentially deadly weather event, is not reportable Criteria, unless it causes reportable storm damage. -Hail
Hail is an interesting reportable Criteria
because the presence of Hail often is the precursor to more significant events.
So, essentially, look at the chart below, and always report hail size by the items listed:
In conclusion: Today’s Criteria for weather reporting is currently under review. Newer technology and communication interfaces will bring even more sophisticated information in the future.
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