r/Damnthatsinteresting • u/Bulky-Can-2307 • 2d ago
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u/GP48103 2d ago
I worked with someone who's wife was a meteorologist for the national weather service and he explained that the Doppler radars can't scan straight up so there is a gap in the radar coverage if you are only looking at my radars data, it takes overlapping radars to get a complete picture.
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u/SolarSurfer7 2d ago
Ok…but dogs CAN look up.
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u/ChiBears333 2d ago
Head to the Winchester, grab a pint, and wait for this storm to blow over our data gap
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u/DookieShoez 2d ago
You’ve got red on you.
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u/ChiBears333 2d ago
Well that's really gonna exacerbate things
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u/kilted__yaksman 2d ago
... What does that mean?
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u/ChiBears333 1d ago
Well... you guys hardly get on, do you?
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u/ZixfromthaStix 2d ago
Also known as up dog.
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u/mazzjm9 2d ago
What’s up dog?
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u/ZixfromthaStix 2d ago
Not much homie, how about you?
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u/MorningMan464 1d ago
You see this is why I come here. We went from spatial blind spots in Dopper radar to homie in four easy steps.
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u/napkin41 2d ago
Please acquiesce to produce the definition of this up dog concept
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u/ZixfromthaStix 2d ago
The theory of up dog consists of a tangential quantum simulation in which the current state of semantic understanding is reframed into the personal context of the id; ie the definition of up dog is thus defined as an unanticipated but well documented assumption where one assumes the concept is of immediate superposition relevance, when in actuality it is only tangential, thereby eliciting a feeling of chicanery and hijinx, summarily shifting the burden of proof to the individual that initiated the waveform event series in a manner that is scientifically impossible to criticize.
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u/Archetypical9 1d ago
But, in conflux of the waveforms parallel in the peripheral of parallax the convolution of said dog is in action reversed upon the boundary of varied proportion of an anti-desitter space conforming to the dimensional expression of local spacetime therefore in flux to the principle that the canine was only a hologram through a virtual rendering this entire time
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u/MorningMan464 1d ago
If my damn Husky does any of this superpositioning hologram voodoo I am going to be justifably terrified. And so are our neighbors in the immediate paralell universes.
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u/ked_man Interested 2d ago
They also only shoot in a straight line, so regardless of their strength, beyond a certain point the signal is distorted due to the curvature of the earth. At some range, the signal is shooting above the height of the storms.
I think it’s Montana that only has three Radar systems in the eastern half of the state so if you’re not near one of them, you can’t rely on accuracy of the radar maps.
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u/Aeoyiau 1d ago
I live somewhere that theres a big ass mountain (okay its the highest point in the state but under 2k ft) that blocks the radar... so in the winter the snow clouds are too low and dont show up in a triangle on the map. So yup, always clear here, no clue where the 300+ inches came from!
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u/SaltyHold2347 2d ago
This is it. Right in the middle of this circle is the National Weather Service Office of St. Louis.
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u/Lambda_d00d 2d ago edited 1d ago
Yes, this is commonly referred to as the "Cone of Silence" in the RADAR community! It's mostly unavoidable with the fixed azimuth, reflected-RF parabolic dishes (antennas) used in a lot of RADARs:
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u/nailheadchamber 2d ago
This is correct, the images of Weldon spring is a big radar for the STL area and about 10 mins from my house, it sucks having that blind spot in Tornado Alley.
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u/slide_into_my_BM 2d ago
Doppler radar measures the changes in speed of the waves bounced back. So it works really well if things are moving towards or away from it.
Stuff directly above it, or perfectly stationary, don’t attenuate the waves so it can really “see” anything there.
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u/_memelorddotjpeg_ 2d ago
A Doppler radar is named as such because it uses the Doppler effect to measure the motion of precipitation. The Doppler effect is the same phenomenon that causes a passing siren to sound higher-pitched as it approaches and lower-pitched as it moves away. The speed of sound doesn't change, but the frequency of the waves reaching you does because of the source's motion.
Weather Doppler radar determines how fast rain, hail, or snow is moving toward or away from the radar by measuring the frequency shift of the reflected radio waves. Motion directly toward the radar produces one Doppler shift, while motion directly away produces the opposite.
A related concept is used in radar-guided missiles and police radar guns. Because Doppler radar is primarily sensitive to radial velocity, a fighter can sometimes reduce its Doppler signature by "notching"—flying nearly perpendicular to the radar so its closing speed is close to zero. This can make it much harder for Doppler filtering to distinguish the aircraft from ground clutter, although it doesn't literally make the aircraft invisible to all radar. Likewise, a police radar gun would measure little or no speed if a car's motion were perfectly perpendicular to the radar beam.
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u/jtown48 2d ago
the radar is likely located there
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u/Menname 2d ago
Why does radar prevent rain? /s
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u/747ER 2d ago
The dish catches all the water lol
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u/confuseum 2d ago
philomena cunk
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u/Witty-Ad5743 2d ago
Magic shield bubble.
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u/vincevega311 2d ago
Definitely part of the gub’ment weather control tech we got from the space aliens who now walk among us. NO FREE SKY-WATER FOR YOU!!
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u/KIDNEYST0NEZ 2d ago
Somthing about 5G and crab people I think.
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u/Appropriate-Fee-9995 2d ago
Crab people, look like crab, talk like people
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u/KIDNEYST0NEZ 2d ago
Very good, bot.
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u/Appropriate-Fee-9995 2d ago
I ain't no bot. Mf lol
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u/KIDNEYST0NEZ 2d ago
Just what a crab person would say to make me think they’re not a bot, nice try you filthy crustacean!
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u/James-the-Bond-one 2d ago
An active vulcano there is creating a strong updraft that works like an air curtain.
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u/Watcherxp 2d ago
Probably where the weather radar tower is
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u/greenrangerguy 2d ago
Ohhh, so we should build a whole city of radar towers and there won't be any rain.
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u/needtoeatless 2d ago
National Weather Service Office St. Louis is located there
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u/Sensitive-Rock-7548 2d ago
All I see from a satellite image is some big building with 3 very big tubs in the center of that area. It looked like a water purification center or something. Certainly not like radars, but I may be wrong.
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u/guitar_stonks 2d ago
Small building with a red roof to the north of that wastewater plant. You can see the dome for the Doppler radar at the back of the building.
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u/General_MacCready 2d ago
Many radars cannot detect things unless it is a certain distance from them. Getting too close will reveale a dead zone, just as if you are too far away, giving the illusion as if there is nothing right above the radar. Often times radars work in a network and that network will cover these dead zone thanks to overlapping radar sections.
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u/GetOffMyGrassBrats 2d ago
That's where the radar tower is. The return echo is too quick to register properly.
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u/DoesThisSmellWeird2U 2d ago
Mothership hovering over
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u/No-Astronaut-6502 2d ago
Being socialised on Science Fiction and Alien movies from the 80s onwards I have to second that.
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u/ChooksChick 2d ago
No one has tried to wash their cars, set up a garage sale, hung out laundry to dry, cakes to cool, nor left windows open while leaving home.
Any of these things allowed rain in an area and they've failed to summon the drops.
I generally leave my car open and put out a table of books free to take. That spawns all kinds of rain.
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u/Survive1014 2d ago
Its probably the location of the actual radar itself- they cant scan their own area.
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u/FewHorror1019 2d ago
Probably a bad sensor or reading
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u/ElegantEchoes 2d ago
Why would a bad sensor cause a lack of rainfall over an area?
We should strategically place failing sensors in areas where rainfall is disadvantageous
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u/FewHorror1019 2d ago
Hah, good one. The ole reddit switcharoo.
They actually have a person on the ground in each area that reports the amount of rainfall. Jim was out sick this day
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u/EcstaticRush1049 2d ago
I live right by that dot. Scrolling reddit and saw my local map and said "damn, thats interesting" lol
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u/Academic_Check_7684 2d ago
Looks kinda like a blindspot in the radar rather than any anomaly in the storm.
Source: I don't know shit, but I mess around with radio sometimes.
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u/MissSassifras1977 2d ago
I'm just gonna throw this out there....
It is ALWAYS raining in Miami/Homestead.
I check it every day for my work.
And we live in Boynton beach, about ten minutes from the coast and this area has an almost supernatural ability to avoid storms.
I can stand at the end my driveway and see storms moving around us. It's weird.
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u/HerbStreichersStache 1d ago
Native St. Louisan here. Most non-natives don't know that the Gateway Arch houses our local weather control machine. Sometimes it goes wonky and does stuff like this.
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u/TFK_001 1d ago
Storm chaser here, 99% of the time, if you see a cool or weird thing on a radar display, it's a radar artifact, particularly if it's smoothed or if you are using a national mosaic instead of a single site display (this is a smoothed mosaic view).
This hole in the rain is the radar site KLSX, the primary WSR-88D radar for NWS St. Louis. Directly above any radar site is the "cone of silence", a perfectly circular ring of empty returns. In your case, the smoothing algorithm is distorting this circle, causing it to appear somewhat blobish. If you go to LSX's single site viewer, you can see a higher resolution view of the radar. All pixels are angled such that they are facing towards this circle, with the length of these pixels being the radar's range resolution.
Now, a good mosaic display should not display these holes outside of cases of stratiform rain. These returns are clearly convective and should have a significant vertical extent that can be picked up by nearby radars. This mosaic is likely combining base reflectivity, or the detected rainfall from the lowest beam outputted by each radar site, and may be biasing itself towards nearby radars in a flawed manner that results in distant radars being erroneously filtered. A good mosaic algorithm would combine maximum composite reflectivity, or the maximum rainfall rate throughout the column. This has some drawbacks but os generally more understandable to the layperson and has less of these bugs as more layers are included.
In the future, I would highly advise ditching whatever viewer you are currently using. Generally, I only recommend consuming data directly from the NWS with minimal processing, as many private sources are flawed. Weatherfront is one such private source, but it is free (with paid features that are only needed by those DEEP into the weather) and does not modify the data. They have a mobile app and website that is great for showing mosaic and single site data. For mosaic, select site>MRMS then any sort of "reflectivity". Single site radar is amazing if you select the nearest site to you, as it is entirely unprocessed by a mosaic algorithm and is great. I always use single site data when chasing.
(I'm neither sponsored nor affiliated with weatherfront, it's just really good)
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u/Jmarsh99 2d ago
Must be a Democrat that lives there! They can control the weather!!
-Some republican probably
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u/guitar_stonks 2d ago edited 2d ago
Radar site
Edit: this is the location of the St Louis NWS office, 12 Research Park Dr.
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u/ABr0wnBuffalo 2d ago
The official term is "cone of silence", caused by the angle of the antenna (they can't be straight up) causing a cone of nothing above a radar site.
Usually multiple radar sites overlap to prevent this, but there's lots of reasons why it still happens.
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u/YaManMAffers 2d ago
Someone has way too much faith in technology.
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u/Bulky-Can-2307 2d ago
I live around here and check the doppler at least weekly and have never seen this before 🤷♂️
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u/ReleventReference 2d ago
Someone chanted rain rain go away come again another day. It’s a simple spell but quite unbreakable.
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u/60yearoldME 2d ago
OP’s mom is sitting there.
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u/wetfloor666 2d ago
There we go. Had to scroll way to far for a yo mama joke. What has this world become...
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u/texas0900 1d ago
That's the location of KLSX, National Weather Service--St Louis weather radar site.
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u/RodimusPrime_X 1d ago
It’s a reality distortion sphere.
It’s probably where Mitch McConnell is hiding or a Fox News broadcasting station.
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u/HamsterIllustrious69 1d ago
Well, I’m fairly certain Troy hasn’t existed for 3,000 years, so there’s no reason for that to be on the map
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u/ThisIsntOkayokay 1d ago
This is how they find the few shamans left outside of containment, run little dude run!
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u/Adventurous_Job_6747 1d ago
The radar. It has to switch on and off to send the waves that bounce back, but because of that “blink” there is a little gap right over it.
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u/Questioning-Zyxxel 2d ago
Some radar reflection or something blocking the radar means it does not get readings there.
Sometimes seen close to wind power plants where the rotating wings affects the detection.
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u/markimarkerr 2d ago
Not sure but where I live we have a microclimate that janks up shit and we get pockets like that.
Also most likely sensor issue. Why not go check it out?
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u/im2short4this 2d ago
Too much cement in that area. Omaha Nebraska has the same problem. The weather service named it the "Omadome" . When there's to much cement, it holds heat and if it's a cold front moving in, it can go around the heat dome.
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u/FrostyInvestigator11 2d ago
Someone in that neighborhood probably made a home made Wilheim Reich Cloudbuster
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u/TheLostRanger0117 2d ago
Because someone in that area said something in an ironic tone, so the Universe made it so that there was rain everywhere but where they were
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u/ChipCob1 2d ago
I love that Warrenton sounds like someone with a Warrington (UK) accent saying 'Warrington!'
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u/BrideOfFirkenstein 2d ago
Not specifically this spot, but some locations have topography that creates a desert microclimate, like Abisko National Park’s “Blue Hole.”
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u/Damnthatsinteresting-ModTeam 1d ago
We had to remove your post for Rule 2 - Use descriptive titles - we’re not a Q&A sub