I think that is 40km, not 40 miles.
true, the official specs show 40 km though I just had one coming with 47 km here and Weather34 seems to catch even way over the limit mentioned.
Guess Franklin gives a âsureâ range. But indeed officially it is 40 km
thanks for pointing it out
Thanks everyone for the information.
We had another storm system go through last night and the Tempest measured over 3400 strikes within a time span of about 1.5 hours.
Iâm not sure how to verify these numbers are correct. According to the Tempest map, there are a few Air/Sky stations that are somewhat close but none closer than 15 miles or so. Those systems registered a significantly lower strike count than mine for the same time period.
Iâm probably grasping at straws here, but my house is next to an easement where high voltage transmission lines run. Could those possibly be playing havoc with the lightning sensor?
I would think if the transmission lines were causing problems, youâd see strikes even in good weather. Were you closer to the storms than the other stations you mentioned? If so, that could account for your higher strike count.
yes that was my initial reaction as well, but then I figured that perhaps it is also pretty moist. I donât know the exact conditions, but there might leak some current through sparks on the electric wires.
@bchelbig 3400 strikes is a lot, but remember it covers a detection area of 1250 square km. For a big storm 3400 strikes might be true in such an area, but it has to be a really, really big storm.
The AIR+SKY stations donât have the same hardware + backend smarts that the Tempest does. To give you an ides of the difference Iâve attached two screenshots. The first one is of the Tempest with the approximate time I enabled the lightning setting on the AIR, the second pic is from the AIR. Both stations are at my house and within 50 feet of each other.
Again, only compare from the red indicator line on.
i think they both use the same lightning detector. However the parameters defining the sensitivity of the detector can be changed on the tempest. In your case it almost looks as something is wrong with you air unit.
@dsj does the air use the same smarts to add extra lightning that wasnât detected by the unit? i would think so, but does it?
Maybe I misunderstood but I thought this statement by David meant that Tempest had things that the AIR didnât for various reasons.
Here is a quote from https://community.tempest.earth/t/lightning-reports-tempest/6262/25?u=gizmoev
And later in the same thread:
As for my AIR being defective, remember that I had lightning turned off until the red indicator line. It didnât record vary many strikes. We have so few lightning storms here and I got tired of the false positives that I turned it off. I have not had those issues with the field test Tempest units.
I think those statements by David were very general statements not super specific for the tempest (even though he mentioned it). As an example, the raincheck functionality, first introduced for the sky unit, would fit those statements. I donât think that adding missed strikes back in later via the server, would be specific for the tempest. That is just a software thing. The thing that is specific, is that the tempest can change itâs threshold for detecting strikes.
The answer is the Tempest does have things that the AIR doesnât, both on the device itself (firmware) and in the âback-end smartsâ. Yes, in theory we could improve AIRâs reporting of lightning using the same approach taken with Tempest. We may decide to tackle that in the future, but we are not doing that yet. As a practical result, lightning reported by Tempest will generally be better than AIR.
PS: My statement that âTempest is more than just hardwareâ IS a general statement that includes more than just the Tempest hardware device. AIR & SKY are more than just hardware too and, in fact, are part of the overall Tempest System!
PPS: It is a bit of a semantic challenge to distinguish the âTempest Hardwareâ separately from the âTempest Systemâ. We recognize that we probably need a better name for the piece of hardware that is currently referred to as âthe Tempestâ but we donât have one yet. For now, the piece of hardware that you install at your house is âthe Tempestâ and everything else (including the piece of hardware) is the âTempest System.â
Tempest Station ?
Tempest Sensor Suite ?
(anything that gets us the chance for more Yeti mugs!!!
Those are real, validated strike counts. Lightning strikes the Earth about 100 times each second on average. Thatâs about 8,000,000 strikes per day on average.
Letâs look at some radar and lightning archives from that June 3rd afternoon Derecho event that raced across PA and through NJ. Not only was it super cool but actually a super rare storm event you were right in the middle of. With a lightning activity radius of about 40km, itâs no wonder your Tempest reported so many strikes.
Hi David,
iâm feeling a bit disappointed. implementing false lightning suppression for the tempest, but not for the Air even though it is just a software thing. Will Sky/Air users be left behind? Usually it isnât the best thing for software development to create a separate branch for newer hardware. If one does, it almost always implies that no development or improvement will happen to the other branch. Too bad.
I did a quick analysis of the lighting strikes today, comparing the Air and Tempest. The data, while not one for one identical was similar enough I could match several entries. Iâm impressed with the direction WeatherFlow is heading.
Thanks for the information. Itâs good to know that the system is functioning properly and providing accurate measurements. This discussion has definitely been a learning experience for me.
BTW, Iâm loving my Tempest! Keep up the good work!
I came to the forum to ask about some of the strike count date I have received this week. Last week we had some storms come through and the sound was over 2000 and that seems correct and all seemed well. But then on July 6th we had a major storm come through New Jersey and there was a huge number of lightning strikes rain and hail. I found when watching the sound live that day that the court kept returning to 0 and then would count up a few strikes then return to 0. I thought this was odd but wanted to see what it said in the history the next day. That show 0 strikes. When I look at the graph of the lightning from the time of the storm, it is almost solid blue. Anyone experience similar issues?
Sounds like you were affected by the service outage. See here for details: Service Outage (Lightning Strikes)
Thank you I just saw that thread after I found this one.
CORRELATION WITH LIGHTNING MAPS
REF: Real Time Lightning Map :: LightningMaps.org
DISCUSSIONS
On 1 July 2021 the new Tempest E Weile Station picked up a confirmed thunderstorm squall moving NW toward Spokane, WA
Observing the radar returns from two sources, Winy.com and Weather underground, confirmed the small cells pending arrival as were detected prior to arriving at said location on said detectors.
Further cross correlations were done with the local Tempest Map using older units. Those indicated lower levels of hits and served as a reference to my short lived inspection.
As the storms grew in strength over the SE Plains toward Spokane, the unit indeed tracked the Horizontal and Vertical polarizationâs with precise detail. Small thunder roll aloft around 5 am indicated a high level CtoC event and was not indicated on Windy or Lightning. Org.
CONCLUSION
Tempest tracked the EMPâs within good agreement of various sources, and furthermore warned ahead of time the arrival of this eventâŠ
Former Principle Investigator ASRC, Albany, NY, Research Foundation State of New York, c 1977 - 1980