Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Lilyhoney

(1,985 posts)
Sun Apr 21, 2013, 11:34 PM Apr 2013

Strange weather doughnuts on weather radar at the moment. Any idea what it is?

http://www.accuweather.com/en/us/rockford-il/61101/weather-radar/328767

I look at this weather map all the time. There are several doughnut shapes showing in Texas, Missouri, Illinois and Iowa. Does anyone have any input as to what is causing them?

Thanks for your ideas.

Lilyhoney
31 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Strange weather doughnuts on weather radar at the moment. Any idea what it is? (Original Post) Lilyhoney Apr 2013 OP
... pinboy3niner Apr 2013 #1
Damn...beat me to it... abq e streeter Apr 2013 #3
In fairness, you probably were distracted by the balloons pinboy3niner Apr 2013 #13
Salsa for nothing and your chips for free. abq e streeter Apr 2013 #16
LOL! pinboy3niner Apr 2013 #19
yeah it ain't bad sometimes abq e streeter Apr 2013 #27
Will do next time I head that way pinboy3niner Apr 2013 #30
Hell yeah abq e streeter Apr 2013 #31
Actually there was a Simpson's episode where it was raining donuts Fumesucker Apr 2013 #11
Homer changing history... pinboy3niner Apr 2013 #15
I found it Fumesucker Apr 2013 #18
Thanks, Fumesucker pinboy3niner Apr 2013 #20
The real tragedy was that Homer didn't notice the rain of donuts and changed history again Fumesucker Apr 2013 #21
I think those are the locations of the radars. Renew Deal Apr 2013 #2
I was thinking it was something like that Lilyhoney Apr 2013 #10
It's ground clutter that shows up more at night Warpy Apr 2013 #23
Doppler radar source sites show a "blank" where they can't return signals. NRaleighLiberal Apr 2013 #4
'Doppler dead zone' Newsjock Apr 2013 #14
That's where the weather radars are located. neverforget Apr 2013 #5
aliens on a meetup with zombe hoard SmileyRose Apr 2013 #6
Crop circles in the making? Brother Buzz Apr 2013 #7
My guess is thick stratus clouds, or maybe light drizzle that isn't reaching petronius Apr 2013 #8
Better than meatballs. rug Apr 2013 #9
Nothing unusual at all jberryhill Apr 2013 #12
Thank you DU! Lilyhoney Apr 2013 #17
High Humidity Ground Clutter... KharmaTrain Apr 2013 #22
I was wondering why it is not raining Lilyhoney Apr 2013 #24
They're flocks of migrating birds XemaSab Apr 2013 #25
Those are normal. NutmegYankee Apr 2013 #26
Radar black holes defacto7 Apr 2013 #28
I'm sure it's nothing Ellipsis Apr 2013 #29

pinboy3niner

(53,339 posts)
13. In fairness, you probably were distracted by the balloons
Sun Apr 21, 2013, 11:44 PM
Apr 2013

Or maybe absorbed in enjoying sopaipillas or fry bread.



abq e streeter

(7,658 posts)
16. Salsa for nothing and your chips for free.
Sun Apr 21, 2013, 11:48 PM
Apr 2013

And I don't get easily distracted by.....Oooh, shiny ....
What was the question?

pinboy3niner

(53,339 posts)
19. LOL!
Sun Apr 21, 2013, 11:54 PM
Apr 2013

I had in-laws in South Valley and used to enjoy my visits there--especially during fair season. Great town!

abq e streeter

(7,658 posts)
27. yeah it ain't bad sometimes
Mon Apr 22, 2013, 01:17 AM
Apr 2013

PM me if you ever are heading this way again....Oops, HAD in laws...Guess you ain't heading this way any time soon..But if you do...

pinboy3niner

(53,339 posts)
30. Will do next time I head that way
Mon Apr 22, 2013, 02:25 AM
Apr 2013

Yeah, the in-laws are exes but we all remain on good terms. It's a wonderful family that has 12 great kids--many of whom are still there.

I haven't done a cross-country road trip in a while, but when I do I usually plan on stopping in ABQ. Especially when the Sandias are snowed in. I nearly got frostbite once having to put my chains on heading up to the pass in a storm. (I also broke my shoulder once while inner-tubing in the Sandias.)

But I know I can count on you to steer us to the best places for food and salsa--rain, snow or shine.

Fumesucker

(45,851 posts)
11. Actually there was a Simpson's episode where it was raining donuts
Sun Apr 21, 2013, 11:42 PM
Apr 2013

It was the time when Homer accidentally made the toaster into a time machine and went back, stepped on a butterfly and changed history.

Fumesucker

(45,851 posts)
18. I found it
Sun Apr 21, 2013, 11:53 PM
Apr 2013

Go to 3:36 for the start of the episode with the donuts, it's sped up a bit for some reason.

Renew Deal

(81,871 posts)
2. I think those are the locations of the radars.
Sun Apr 21, 2013, 11:37 PM
Apr 2013

Last edited Mon Apr 22, 2013, 12:32 AM - Edit history (1)

They don't pick up anything directly over head for some reason.

Lilyhoney

(1,985 posts)
10. I was thinking it was something like that
Sun Apr 21, 2013, 11:42 PM
Apr 2013

but I look at this map almost daily and this is the first time I am seeing doughnuts. Thanks for your thoughts.

Lilyhoney

Warpy

(111,339 posts)
23. It's ground clutter that shows up more at night
Mon Apr 22, 2013, 12:16 AM
Apr 2013

You'll see it at the NOAA site all over the country on the big maps.

It's doing a good job of showing that squall line off to the west, though.

NRaleighLiberal

(60,019 posts)
4. Doppler radar source sites show a "blank" where they can't return signals.
Sun Apr 21, 2013, 11:39 PM
Apr 2013

hence the donut effect, I believe.

Newsjock

(11,733 posts)
14. 'Doppler dead zone'
Sun Apr 21, 2013, 11:45 PM
Apr 2013

As immortalized in this classic, real TV weather promo that made it to The Daily Show.

petronius

(26,603 posts)
8. My guess is thick stratus clouds, or maybe light drizzle that isn't reaching
Sun Apr 21, 2013, 11:41 PM
Apr 2013

the ground. The 'donut' is where the upwardly-slanting radar beam intersects the cloud base...

 

jberryhill

(62,444 posts)
12. Nothing unusual at all
Sun Apr 21, 2013, 11:43 PM
Apr 2013

Just normal weather phenomena, that's all



Now, look at the tip of this device....

Lilyhoney

(1,985 posts)
17. Thank you DU!
Sun Apr 21, 2013, 11:48 PM
Apr 2013

I knew you folks would be good for a laugh and some logic.

But now I want doughnuts and to see massive crop circles plastered all over the news in the morning.

Thank you and good night.

Lilyhoney

KharmaTrain

(31,706 posts)
22. High Humidity Ground Clutter...
Mon Apr 22, 2013, 12:16 AM
Apr 2013

...the ring near Chicago is around the Marsellies radar station Temps are around freezing and dew points are real high tonight and that's what's creating the impression there's rain when there's none in the area.

Lilyhoney

(1,985 posts)
24. I was wondering why it is not raining
Mon Apr 22, 2013, 12:23 AM
Apr 2013

when the radar shows it is. Also it is cold and humid here.

Thanks for helping me learn something.

Lilyhoney

NutmegYankee

(16,201 posts)
26. Those are normal.
Mon Apr 22, 2013, 12:53 AM
Apr 2013

The radar gets refracted by the atmosphere at night and causes some of the beam to hit the ground and bounce back. It creates a circle around many stations at night, especially in summer. The computer software usually edits out the bad reflections. The dead spot is the area closest to the radar tower.

The Doppler systems have different settings, based on the type of weather expected. If a radar is in clear weather mode, and it's very humid, then the beams get refracted.

Latest Discussions»General Discussion»Strange weather doughnuts...