…… Any meteorologists here?

[bbbuddy]

NWS Weather Forecast Office: Phoenix, AZ - GeoColor - NOAA / NESDIS / STAR

Near real-time publication of GOES-East and GOES-West images from NOAA/NESDIS/STAR

www.star.nesdis.noaa.gov

There is a long black line in the northeast corner of Arizona MOVING southwest against the wind and is probably at least a hundred miles long. Undulates and moves and is under the clouds, disappears under them.

What could be the possible explanation? Definately moving. It starts in the "movie" about where I started the circle around it.
It won't be seen once the image file updates the time....

 

[Duffield]

Maybe a huge flock of geese.

 

[bbbuddy]

Man that would be HUGE

 

[bbbuddy]

Duffield did you look at it at the link?

 

[Macgyver]

NWS Weather Forecast Office: Phoenix, AZ - GeoColor - NOAA / NESDIS / STAR

Near real-time publication of GOES-East and GOES-West images from NOAA/NESDIS/STAR

www.star.nesdis.noaa.gov

There is a long black line in the northeast corner of Arizona MOVING southwest against the wind and is probably at least a hundred miles long. Undulates and moves and is under the clouds, disappears under them.

What could be the possible explanation? Definately moving. It starts in the "movie" about where I started the circle around it.
It won't be seen once the image file updates the time....

View attachment 464161

I'm having trouble finding your screenshot piece on the actual radar.

I would try to corelate that satellite loop with a still satellite image and look for a Ridgeline that's my theory.

 

[bbbuddy]

It's in the upper right corner of Arizona

 

[bbbuddy]

I saved it as a .gif but it's too big to upload and I can't find how to reduce it on my tablet. When I try it just reverts to a snapshot not a movie.

 

[Cacheman]

Isn't that in the center of the Navajo nation?

 

[bbbuddy]

Isn't that in the center of the Navajo nation?

Yes

 

[ChetekTech]

I see it on the past loop, but it seems to have dissipated.

 

[packyderms_wife]

Arizona.---> that blueish purple streak is snow.

 

[bbbuddy]

Arizona.---> that blueish purple streak is snow.

No, this is a thin black line in the upper right corner, moving to the southwest, while the clouds are moving to the northeast.

 

[bbbuddy]

I see it on the past loop, but it seems to have dissipated.

Yeah it disappears under the clouds.

 

[Millwright]

Is the sat. image IR or visible?

Could be an upwelling of cold/warm air along terrain features, if you're looking at IR?

 

[Peter]

Check out a topo map of AZ. In that corner of state NE of the Hopi Reservarion there is a terrain feature (looks like mountain ridge) that looks very similar and appears in same locarion? Perhaps as wx moves NE this being stationary appears to move in opposite direction.

 

[bbbuddy]

Visible

 

[bbbuddy]

Check out a topo map of AZ. In that corner of state NE of the Hopi Reservarion there is a terrain feature (looks like mountain ridge) that looks veey similar. Perhaps as wx moves NE this being stationary appears to move in opposite direction.

That's what I thought at first, but putting my pen on it when it first appeared, it moves about 1/2 in away in the loop. It is not stationary.

 

[Peter]

Interesting. As time elapses you can adjust the # hours back to start so this will be visable for a while. Was thinking maybe a cloud bank casting a shadow that fades as it sinks. Got me on this one.

 

[summerthyme]

I have no clue. It doesn't show up (at the same time as on your link) on the www.weatherforyou.com site. I do wonder if it could have been birds?

Summerthyme

 

[packyderms_wife]

I have no clue. It doesn't show up (at the same time as on your link) on the www.weatherforyou.com site. I do wonder if it could have been birds?

Summerthyme

Birds have my vote, we’re almost at the height of migration right now. Huge lines of birds overhead for miles. Right now it’s cranes, geese of several varieties, swans, and pelicans.

 

[summerthyme]

But is Arizona on a migration flyway?

Summerthyme

 

[packyderms_wife]

But is Arizona on a migration flyway?

Summerthyme

I think so, lots of birds in the Baja for winter, and also up from chile. If they don’t like the weather they will double back. Most of those birds are headed to Alaska and the Yukon

 

[John Green]

Maybe a huge flock of geese.

Or Flock Of Seagulls

 

[hiwall]

Sorry I am busy right now or I would run up there and take a look.

Could it be smoke?

 

[bbbuddy]

If it was birds, it had to be hundreds of thousands. The line was about as thick as my marker in the picture and stretched for probably 60 miles or more

 

[Blue 5]

WX dude here. I can take a look when I get back to work next week. I'm in vacation in Florida this week. We've got access to archived data so I'll be able to look back and check it out more closely

 

[Blue 5]

Quick update:

The feature noted in the OP is a shadow cast by a layer of mid-upper level clouds that is spreading southwestward.

 

[bbbuddy]

Quick update:

The feature noted in the OP is a shadow cast by a layer of mid-upper level clouds that is spreading southwestward.

Must have been a hellofa shear between those cloud levels because the upper clouds are racing northeast, and that shadow is racing southwest just as fast!
Thanks for looking!