Tag Archives: storm spotter

SKYWARN, Weather

Unusually high tornado probability in northeastern Indiana May 7

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A map of Indiana showing tornado probabilities in different areas.
Click the image for a higher-resolution view.

A large part of northeastern Indiana has a level 3 of 5 (enhanced) risk of severe weather Tuesday, May 7, 2024, with tornados, damaging straight-line wind and large hail all possible, according to an outlook that the National Weather Service Storm Prediction Center (SPC) issued at 1:30 p.m. today, May 6.

The level 3 risk is largely due to a doubling of the probability of a tornado in that area, versus the SPC’s earlier outlook.

On its tornado probability map (above), the outlook uses yellow shading to indicate a 10% probability that a tornado will occur within 25 miles of any point during the 24 hours beginning at 8 a.m. ET May 7. In our experience, a 10% probability for this area is quite unusual.

In that area, the normal probability of a tornado on any May 7 is only 0.40%, according to historical data analyzed by the NOAA National Severe Storms Laboratory. A 10% probability is therefore 25 times normal.

A map of Indiana showing an area that has a 10% or greater probability of a significant tornado.
Click the image for a higher-resolution view.

Of additional concern is the outlook’s indication that the same area (shaded in gray on the map above) has 10% or greater probability that any tornado that forms will be capable of damage rated EF-2 or greater on the Enhanced Fujita Scale. Possible EF-2 damage includes snapped or uprooted trees, destroyed mobile homes and roofs torn completely off houses.

The outlook gives most of the remainder of Indiana a 5% tornado probability, except for extreme northwestern Indiana, where the probability is 2%. This means a tornado is possible anywhere in Indiana tomorrow.

A map of Indiana showing probabilities of large hail in different areas.
Click the image for a higher-resolution version.

On its large hail probability map (above), the outlook shades all but extreme northwestern Indiana in yellow, indicating a probability of at least 15% that one inch or larger hail will occur within 25 miles of any point during the same period. The remainder of the state has a 5% large hail probability.

A map of Indiana showing an area that has a 10% or greater probability of 2-inch or larger hail.
Click the image for a higher-resolution view.

The outlook indicates that all but northwestern Indiana (shaded in gray on the map above) has a 10% probability that any hail that falls will be 2 inches or larger.

A map of Indiana showing damaging wind probabilities in different areas.
Click the image for a higher-resolution view.

On its damaging wind probability map (above), the outlook shades all but extreme northwestern Indiana in yellow, indicating a probability of at least 15% that damaging, straight-line winds or gusts of 58 mph or stronger will occur within 25 miles of any point during the same period. The remainder of the state has a 5% damaging wind probability.

It would be wise for people in Indiana — especially #Skywarn storm spotters and anyone who has an outdoor activity planned for Tuesday — to plan for all forms of severe weather and pay closer than usual attention to reliable sources of weather information, including the National Weather Service and professional broadcast meteorologists.

#severeweather #tornado #INwx #largehail #damagingwind

SKYWARN, Weather

Severe weather is possible Sunday, Aug 6, including a tornado.

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This map from today’s SPC Day 4 Severe Weather Outlook indicates an area (shaded in yellow) that has a 15% probability of severe weather on Sunday, August 6. It includes the entire state of Indiana.

TLDR: The National Weather Service Storm Prediction Center issued an outlook early this morning that indicates a probability of all forms of severe weather throughout Indiana Sunday, including tornadoes; damaging straight-line thunderstorm winds; and large hail. People should pay attention to reliable sources of weather information as Sunday nears, especially people who are planning outdoor activities Sunday afternoon and evening.

How we know this is possible

The Storm Prediction Center (SPC) is a branch of the U.S. National Weather Service (NWS) that’s responsible for providing timely and accurate forecasts and watches for severe thunderstorms and tornadoes over the contiguous United States. Every day, it issues severe weather outlooks for the current day (Day 1) and for days two (tomorrow), three, four, five, six, seven and eight.

Accurately predicting severe weather more than two days in advance is difficult. So, if the SPC indicates a possibility of severe weather in an outlook for three days from now, it’s wise to pay attention.

In the outlook for Sunday that SPC issued this morning (Aug. 3), it indicated a 15% probability of severe weather, including tornados, damaging straight-line thunderstorm winds and large hail, within 25 miles of any point in Indiana as well as parts of neighboring states.

Tornadoes, damaging straight-line winds and large hail are all possible in Indiana Sunday.

Why is 15% a big deal?

As percentages go, 15% looks pretty small. But that’s because severe storms don’t happen all the time. The SPC, in collaboration with another branch of the NWS, the NOAA National Severe Storms Laboratory (NSSL), analyzes historical weather data to determine the normal probability of severe weather on any given date (based on how many times it happened on that date in the past). That analysis indicates that in Indiana, the normal probability of severe weather on any August 6 is 2% to 3% (depending on where in the state, see graphic below).

SPC/NSSL map showing probabilities of severe weather in various parts of the continental United States on any August 6, based on data collected between 1982 and 2011.

That means Sunday’s 15% probability of severe storms is 5 to 7.5 times what’s normal for that date.

What’s most likely, tornadoes or severe thunderstorms?

Day 4 is too far away for SPC to provide probabilities for specific severe weather hazards, like tornados. Nonetheless, the text of today’s Day 4 outlook implies that tornadoes, damaging straight-line winds and large hail are all possible in Indiana Sunday.

In addition. local NWS offices in Indiana issued their own outlooks today that indicate the possibility of severe weather Sunday, especially in the afternoon and evening. These local outlooks also indicate the NWS might need reports from trained, volunteer storm spotters Sunday.

Tomorrow, SPC will issue a Day 3 outlook for Sunday that will provide a categorical risk level from one to five (five being the greatest risk) and possibly modify the target area based on the latest available weather data.

Saturday, SPC will issue a Day 2 outlook for Sunday that will provide individual probabilities of a tornado, damaging straight-line thunderstorm winds (58 mph or stronger), and large hail (one inch or larger). By then, we’ll have a much better idea of what parts of the state have the highest risk and which hazards are most likely.

What should you do now?

No matter who you are, if you’ll be in Indiana Sunday afternoon and evening, and especially if you plan to be involved in an outdoor activity, pay close attention to a trusted source of weather information as Sunday approaches, such as your local NWS office or professional broadcast meteorologists. If you don’t have a weather alert radio in your home, this would be a good time to buy one.

If you’re a trained Skywarn storm spotter like me, prepare for possible activation Sunday, including charging all your battery-powered devices and reviewing what to look for, what to report, and how to report it. The NWS will likely need your eyewitness reports so they can issue the best warnings and keep people safe.

SKYWARN, Weather

High probability of very severe weather in Indiana today

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Probabilities of damaging, straight-line winds or gusts.

Damaging, straight-line thunderstorm winds — the kind that can knock down whole trees and cause widespread power outages and road blockages — are likely in Indiana this afternoon and evening, especially in extreme southwestern counties (shaded purple in the map above), according to a convective outlook that the National Weather Service (NWS) Storm Prediction Center issued at 9 a.m. ET today.

The 45% probability indicated on the map above compares to “normal” or “average” probability for this time of year of only 1%, acccording to climatology (weather history) data from the National Severe Storms Laboratory.

And in a large part of southern Indiana (shaded gray on the map below), any severe thundertorms that form could create wind gusts of 75 mph or stronger. That’s the same as a category one hurricane. The probability of that happening is 10 percent, or approximately 100 times the climatology norm of 0.1%

Probability of gusts of 75 mph or stronger.

Tornadoes are also possible throughout Indiana and once again, the greatest risk is in the southwest (shaded yellow on the map below), where the probability is 10%, or about 25 times the climatology norm. The 5% probability in the rest of the state is about 12.5 times the norm for this time of year. So even though 10 and five are small numbers, they’re important in this context.

Probability of a tornado.

Any tornadoes that form in southwestern Indiana (shaded gray on the map below) have a 10% probability of doing damage rated EF-2 or higher on the enhanced Fujitsu scale. That’s about 50 times the climatology norm.

Probability of a significant tornado doing damange of EF-2 or greater.

The entire state also has a risk of one-inch or larger hail, but as the map below indicates, the hail risk is lower than the straight-line wind risk.

Probability of one-inch or larger hail.

It’s important for anyone in Indiana to have multiple ways to receive severe thunderstorm and tornado warnings today. Unfortunately, the Indianapolis NWS office reported this morning that three NOAA Weather Radio transmitters in southern Indiana were inoperative.

NWS Indianapolis tweet about inopertive weather radio transmitters

Update: The Indianapolis NWS office reported at 11:44 a.m. ET that all three transmitters had returned to service.

That makes multiple alerting methods even more important. People in that area shold probably keep a TV on, turned up, and tuned to a local station (i.e., not ESPN or Netflix!). Another idea is to install the free FEMA app on smartphones.

If your phone and other rechargeable devices are not fully charged, start charging them now.

If you’re a volunteer Skywarn storm spotter, prepare for activation this afternoon or evening.

Ham radio, SKYWARN, Weather

NWS needs storm spotter photos

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National Weather Service SKYWARN Storm Spotter Jay Farlow W9LW using ham radio
WFFT image.

The National Weather Service (NWS) is preparing to revise the web page for its Skywarn® storm spotter program. The agency is seeking photographs to use on the revised web page.

Photographs should depict real-life, safe and responsible spotter activities. Examples include a ham radio operator holding a handheld radio while looking at the sky, or a spotter typing a message on a smart phone, etc. The ideal photos imply action (vs. portraits) and are set outdoors. Due to government policies, NWS declines to use photos of spotters sitting behind the steering wheel of a vehicle while using a mobile radio.

Skywarn volunteer Jay Farlow is gathering photos for a contact at NWS, so contributors should send the photos to arsw9lw@gmail.com by March 31. Contributors should provide contact information of each photographer, so the NWS can confirm it has permission to use the photos.

SKYWARN, Weather

Demand strong for volunteer storm spotter class

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Library expands meeting space to accommodate weather enthusiasts

Strong pre-registrations for a free class on how to recognize and report severe weather phenomena led a local organization to add meeting space to accommodate more people. The Allen County branch of the national Amateur Radio Emergency Service® (ARES) will host the class at the Allen County Public Library, 900 Library Plaza, Fort Wayne, Thursday, Feb. 21 at 6:30 p.m. By Feb. 12, only nine seats were still available, so the library agreed to expand the meeting space, adding 30 seats.

Scheduled speakers include meteorologists from ABC21, Fort Wayne’s NBC, Fox 55 and WANE 15. Allen County Office of Homeland Security director Bernie Beier and Consolidated Communications Partnership deputy director John Chavez also plan to speak.

The class is free and open to the general public, but because fewer than 40 seats are still available, Allen County ARES requests all who plan to attend, to register in advance at https://www.eventbrite.com/e/allen-county-storm-spotter-education-tickets-54685721465

“This two-hour class will provide attendees the knowledge they need to help protect their communities from severe weather like tornadoes,” said Jim Moehring, emergency coordinator (team leader), Allen County ARES. “Although we are a ham radio organization, people need not be hams to be storm spotters, so we welcome anyone who is interested in weather.”

Moehring said the “ground truth” that volunteer spotters provide is essential to the process through which the National Weather Service (NWS) issues storm warnings. He pointed out that this remains true despite advances in weather radar, because the beam from the NWS radar site near North Webster is 2,500 feet or more above the ground by the time it reaches Allen County.

Traditionally, meteorologists from the NWS Northern Indiana office near North Webster have presented spotter training every spring in Fort Wayne. Changes in the office’s responsibilities, however, led it to change its training schedule. As a result, NWS meteorologists won’t be in Fort Wayne until autumn of 2019 and then not again until spring of 2021.

“We wanted to assure that our members and members of the general public have a chance to receive storm spotter education before this spring’s severe weather season,” Moehring said. “We therefore decided to devote our group’s February meeting to a spotter class and to invite everyone to attend. Because NWS meteorologists aren’t available, we’re thrilled that four TV stations in Fort Wayne are sending meteorologists to help teach the weather-related material.”

A complete list of speakers and their topics follows:

  • Jim Moehring, Allen County ARES emergency coordinator (team leader): Introduction to the NWS SKYWARN program and the importance of volunteer storm spotters.
  • Jay Farlow, Allen County ARES assistant emergency coordinator for SKYWARN: How storm warnings are issued and distributed. Also, storm spotter reporting methods and best practices.
  • Charles Ward, experienced storm spotter: Best practices to remain safe while storm spotting.
  • Bernie Beier, Allen County Office of Homeland Security director: The role of the Allen County Office of Homeland Security with regard to severe weather.
  • John Chavez, Consolidated Communications Partnership deputy director: The role of the Consolidated Communication Partnership (911/dispatch) in severe weather events.
  • Caleb Saylor, Fox 55 weekend meteorologist: Thunderstorm basics, including how storms form and become severe.
  • Caleb Chevalier, ABC21 weekend morning meteorologist: Types of thunderstorms, including those most likely to create tornadoes. Also, radar apps and interpretation.
  • Jon Wilson, Fort Wayne’s NBC weekend meteorologist: Thunderstorm hazards, including straight-line winds, large hail, flash flooding and tornadoes.
  • Nicholas Ferreri, WANE 15 chief meteorologist: Cloud identification, including distinguishing scary-looking but benign weather from true threats that spotters should report.

About the Amateur Radio Emergency Service

The Amateur Radio Emergency Service® (ARES) is a program of ARRL, the national association for amateur radio®. ARES establishes teams of volunteer, licensed amateur (ham) radio operators in counties throughout the country, each of which is led by an emergency coordinator. These volunteer teams train and practice to provide communication services to their communities in the event of a disaster. Through a memorandum of understanding signed by ARRL and the National Weather Service (NWS), ARES volunteers also commit to communicating weather information that assists the NWS in the creation of weather warnings. In addition, ARES volunteers practice their communication skills by providing two-way radio communications at public events, such as marathons, walk-a-thons, etc. More information about ARES is available on the ARRL website at http://www.arrl.org/ares.

Ham radio, SKYWARN

Education opportunities for storm spotters

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Alabama broadcast meteorologist and WeatherBrains podcast host James Spann speaks at the 2017 DuPage County Advanced Severe Weather Seminar. Spann is scheduled to speak in March, 2018 at the Central Indiana Severe Weather Seminar in Indianapolis.
Alabama broadcast meteorologist and WeatherBrains podcast host James Spann speaks at the 2017 DuPage County Advanced Severe Weather Seminar near Chicago. Spann is scheduled to speak in March, 2018 at the Central Indiana Severe Weather Seminar in Indianapolis.

Note: This article appears in the February, 2018 issue of Allen County HamNews, a newsletter for the amateur radio operators of Fort Wayne and Allen County, Indiana. Some of the information might still be of value, however, to weather enthusiasts within driving distance of Indianapolis, Chicago or Columbus, Ohio.

It’s time again for a reminder about training for volunteer SKYWARN storm spotters (and those who would like to become spotters). As usual, the northern Indiana office of the National Weather Service (NWS) will provide a two-hour, in-person training session in Fort Wayne. This year’s event is scheduled for 7 p.m., Tuesday, Feb. 20, at the Public Safety Academy, 7602 Patriot Crossing (behind the Wal-Mart and Menards stores on U.S. 27 south of Tillman Road). Check-in begins at 6:30 p.m. Readers outside the Fort Wayne area should check with their local NWS offices for SKYWARN training sessions near them.

The NWS strongly requests all participants to register in advance via this website: http://bit.ly/2BC4fsi. To be honest, registration will be accepted at the door, but it helps the NWS a lot if you register in advance. Anyone who is unable to register via the web site may register via telephone by calling the Allen County Office of Homeland Security at 260-449-4671. There is no charge.

Reports from trained spotters, however, are much more valuable, because trained spotters are less likely to be fooled by scary-looking but benign clouds and are more likely to understand what the NWS really needs to know about (and what it doesn’t).

The NWS also strongly encourages all participants to complete a free, online independent study course before the in-person training session. This course contains valuable information that meteorologists won’t have time to cover during the in-person training. The online course can be found at http://bit.ly/1Ift9f0.

I’m often asked whether the NWS requires training and if so, how often. The honest answer is that the NWS will accept a storm report from anyone, whether or not that person has taken the training. Reports from trained spotters, however, are much more valuable, because trained spotters are less likely to be fooled by scary-looking but benign clouds and are more likely to understand what the NWS really needs to know about (and what it doesn’t).

That’s why the NWS recommends that spotters take the class at least once every three years. Many spotters attend every year, because it helps remind them of important information and because the NWS occasionally updates the class with new information.

Other education opportunities

For storm spotters who are interested in deeper dives into severe meteorology and related issues, several seminars in and near Indiana provide this opportunity.

Indianapolis

The Indianapolis NWS office and the Indiana chapter of the American Meteorology Society host the biennial Central Indiana Severe Weather Symposium this year. Speakers include Alabama television meteorologist James Span, who also hosts the well-known weather podcast WeatherBrains and fellow WeatherBrain Dr. Kim Klockow-McClain, the podcast’s social science expert and a research scientist at the University of Oklahoma Cooperative Institute for Mesoscale Meteorological Studies. The all-day event takes place Saturday, March 17 on the campus of Indiana University-Purdue University Indianapolis (a change from previous symposiums at Butler University). Learn more at http://bit.ly/2EmuvtZ.

Chicago area

The annual DuPage County Advanced Severe Weather Seminar takes place in one of Chicago’s western suburbs March 10. Specifically, the all-day event happens on the campus of Wheaton College in Wheaton, Illinois. That’s about a three-and-a-half-hour drive from Fort Wayne, but I’ve always found the learning worth the drive. Learn more at http://bit.ly/2rKB9aM.

Columbus, Ohio

The Ohio State University Meteorology Club hosts its annual, day-long Severe Weather Symposium on the OSU campus Friday, March 9. I’ve also attended this event several times and found it worth the drive to Columbus. Find more information at http://bit.ly/2rPoC5O.

Ham radio, SKYWARN

Learn to identify and report severe weather to NWS

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SKYWARN storm spotter training banner from NWS Northern Indiana flyer

The National Weather Service Northern Indiana weather forecast office has scheduled its annual SKYWARN storm spotter training class for Feb. 20 at the Public Safety Academy of Northeast Indiana.

If you’re already a volunteer storm spotter, this class will provide a valuable refresher on what to look for what to report and what’s not really useful to warning meteorologists.

The class is also great for anyone who has any interest in severe weather, even if you don’t plan to be a regular volunteer storm spotter in the NWS SKYWARN program.

Although amateur (ham) radio operators have been an integral part of the SKYWARN program since its inception, you need not be a ham to become a SKYWARN storm spotter. There are now many other ways to send storm reports to your local NWS office. Ham radio capabilities remain helpful, however, for improved situational awareness and as a communication tool when other means fail.

As you can read in the flyer below, the class starts at 7 p.m. at the Academy, 7602 Patriot Crossing, Fort Wayne. That’s the big building behind the Walmart and Menards stores on U.S. 27 south of Tillman Road, on the south edge of Fort Wayne. Doors open for check-in at 6:30 p.m.

The class is free but pre-registration is expected. To register, simply go to http://alleninspotter.eventzilla.net/web/event?eventid=2138917591. If you know someone who wants to attend who has no internet access, have them register by phone by calling 260-449-4671.

There are no prerequisites for this class but the NWS recommends completion of free, online training before the class. You can find that training at https://www.meted.ucar.edu/training_course.php?id=23.

I’ve taken the class every year for more years than I can remember and I always get something out of it. If you have any questions, feel free to leave a comment here or on the National Weather Service Northern Indiana Facebook page.

If you don’t live near Fort Wayne, US National Weather Service Northern Indiana plans to offer the same clase at multiple locations in northern Indiana, northwestern Ohio and southern Lower Michigan. You can find a complete list of the office’s classes here. If you live outside the area covered by the National Weather Service Northern Indiana office, contact the NWS office nearest you to learn when and where it will conduct storm spotter classes.

Flyer announcing SKYWARN storm spotter training in Fort Wayne, Indiana, Feb. 20,2018

Ham radio, SKYWARN

Indiana ham radio SKYWARN net changes name, scope

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Allen County, Indiana SKYWARN net operations manual cover thumbnailThe amateur radio SKYWARN net based in Fort Wayne will undergo slight changes, effective Feb 1, 2017. Formerly known as the IMO SKYWARN Quadrant Two Net, it will now be referred to as the Allen County SKYWARN Net. The net will continue, however, to accept and relay reports from spotters outside Allen County, including stations in places like DeKalb and Defiance County, which were not officially part of the former quadrant net’s responsibility. Continue reading →

SKYWARN

How new friends changed my attitude about storm chasers

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Storm chasers on a storm
Photo by Michael Enfield, used with permission

For some time, I’ve looked at amateur storm chasers with some disdain. I believed that too many were putting themselves into too much danger, just to see, photograph and/or video record tornados. I doubted that many chasers were truly motivated by improving public safety and even fewer were doing real science, no matter what they said. I was concerned that many chasers set poor examples for the general public and that their “antics” encouraged lesser informed people to take uneducated and unwise risks.

I’ve been a SKYWARN storm spotter for more than a quarter century. When talking to friends, family members and even journalists about my volunteer service to the National Weather Service (NWS), I was careful to make sure they understood that I’m not a chaser, like the people they’ve seen on TV or on the Web. My ultimate goal, I’d explain, isn’t to see tornadoes, it’s to help protect my community from possible storms by staying close to home and relaying valuable information to the NWS.

So it was with some trepidation that I attended an event in November, 2015 called INChaserCon, a one-day convention in the Indianapolis area for storm chasers. I’m glad I went. Some of the people I met there subsequently changed my thinking. They are admittedly driven by a desire to see tornadoes. But my subsequent experience with them demonstrated that they’re also very passionate about getting reports to the NWS.

After the chasers learned that I have access to NWSChat – a private, internet-based text chatroom run by the NWS – they invited me to join them on Zello, a smartphone app with which they communicate with each other—so I could relay their reports to the NWS via NWSChat.

That’s exactly what happened during the August, 2016 tornado outbreak in Indiana and Ohio. As a tornadic storm moved east from Kokomo into the county warning area of my local NWS office, storm chasers John Tinney, Eric Lawson and David Buell reported wall clouds, funnel clouds, etc. via Zello. I relayed those reports via NWSChat.

Then, a storm over my own home in Fort Wayne, Indiana received a tornado warning. Storm chaser Michael Enfield immediately headed toward that storm. Via Zello, he promptly reported a wall cloud, then funnel clouds and then a tornado for me to relay via NWSChat. The NWS survey report recorded the time of the tornado’s initial touchdown as 5:27 p.m. – the same time as Enfield’s report, confirming that he saw and reported the tornado when it first touched down. That storm eventually did EF-3 damage to a rural part of Allen County, Indiana.

Throughout the event, any time the chasers had something to report, if I wasn’t immediately available on Zello, they’d keep trying until I acknowledged their reports. Getting reports through to the NWS was clearly very important to them. By the end of the event, I had typed 50 reports into NWSchat. All but about 15 of those came from storm chasers on Zello. The rest came from storm spotters via ham radio.

By aggressively chasing storms, my new friends put themselves in positions to immediately report weather that was not near any traditional SKYWARN spotters at the time. By religiously reporting, they played significant roles in protecting people in the paths of the storms.

A Facebook post by Lawson sums up pretty well how this particular group of storm chasers sees things:

“I noticed a developing supercell heading towards Kokomo was looking really strong and rushed out the door. By the time I was on interstate 69 southbound the strong EF3 was already in progress and heading towards the town in which I have spent many days of my youth, and is home to many great friends and their families. Hearing reports of the devastation in progress on the radio made my heart sink. I was rushing south in horror wondering if anyone I knew had been hurt. This is the moment that things really changed for me, I felt less excited about seeing tornadoes, and much more concerned with providing accurate information to keep people informed.”

I have no doubt there are other storm chasers out there who rarely report their observations to the NWS. There are likely some that don’t care about anything but the excitement of seeing a tornado.

But I’m convinced that the storm chasers I know are not among these. They’ve changed my attitude about chasers.

Emergency communications, SKYWARN

ARRL HQ: No guidance on closed ARES nets

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ARRL logoA staff member of the American Radio Relay League, the United States’ largest organization of amateur (ham) radio operators, says he is not aware of any “ARRL guidance to restrict participation in a net.”

Sean Kutzko, KX9X, media and public relations manager, responded April 23 to an inquiry this blog made of the League’s emergency preparedness manager April 12. I asked the questions below after learning of a newspaper article about a Texas Amateur Radio Emergency Service (ARES) net turning away a licensed amateur. ARES is a program of the ARRL.

  • Does the ARRL provide guidance to its ARES leaders regarding the restriction of participation in ARES nets (i.e. the operation of “closed” nets during which only certain amateurs are permitted to transmit)?
  • If so, what guidance does the ARRL provide on this matter?
  • Under what circumstances (if any) should a local ARES net be closed to all outsiders?
  • What legal authority (if any) does an ARES net control station have to bar any licensed amateur from checking in and/or participating?
  • By barring certain amateurs from participating, does an ARES net risk interfering with a licensed amateur’s ability to transmit an emergency message in violation of 97.101(c)?

Below is the verbatim response from the League’s PR guy:

“One of the cardinal rules of all facets of Amateur Radio is “listen, listen, listen.” If Amateurs can provide data of _legitimate_ value to a weather net that is responding to a weather situation, they should be able to do so.  That said, if an Amateur has nothing to contribute to such a net, the Amateur should remain silent to allow legitimate traffic to be passed.

“I’m not of aware of any ARRL guidance to restrict participation in a net. Amateurs should listen to the net control station for guidance on what information is needed, and remain silent if they cannot provide information that fulfills the requested need. Net control stations should listen to the request being made of participating stations, as bona fide emergency traffic takes priority and can come from anyone.”