Strange GRLevel3 Phenomenon?

[Nathan Truninger]

....or is there something wrong with the atmosphere in NE Missouri?

 

[Danny Neal]

Same time as yours...

30 minutes later....

Hmmmm..... Lots of shear in the atmosphere, probably nothing legit.

 

[Jason Boggs]

Nathan, I think your talking about the shear markers, but I see something wrong with your radar display. Compare it to Danny's, and the colors inside the yellow reflectivity don't even look the same. This is just a quick fix to a problem with your graphics card.

Of course, you need to open up Grlevel3
Click on FILE, and when the menu opens, click on device settings.
Put a check mark in "force 16 bit smoothing".
This should fix the weird color display in your radar image.

EDIT: You may have to close Grlevel3 and restart it again for the fix to take affect. I'm not real sure.

 

[Dennis Sherrod]

Check out the Fcst Mvmt on some of these: 94kts? Don't want to chase that.

 

[Chris Nuttall]

Some of those shear markers are probably not even areas of shear. There's probably velocity folding in there.

 

[rdale]

...and that's not a GR3 issue, that's the algorithm output from the NWS.

 

[Tom Van Kuiken]

He also needs to go to File-DeviceSettings-Force 16 bit smoothing and get rid of the funny countouring.

 

[Richard Dickson]

I'm wondering if everyone is talking about the same color differences between Nathan's and Danny's displays. It looks like Nathan's is set to display a 'BR 248' which I believe is a custom display. I can't tell what Danny's is set for. Either way, thanks for the comment about the force 16 bit smoothing. I just updated mine for the correction.

 

[Greg Higgins]

Also notice that the color tables are different. Still probably a video card issue. You might want to take this over to the GRLevel3 forums for Mike to look at.

Greg Higgins

 

[Nathan Truninger]

I was simply pointing out the multitude of Meso markers that were there. I knew they were bogus, but didn't know if anyone had seen something like that before.

Thanks for the idea on the 16 bit smoothing, that made things a lot better on the radar!

 

[rdale]

To clarify: the meso markers automatically come from the NEXRAD site (NWS) -- GRLevel3 is just displaying what is being distributed from the radar.

 

[Mike Gibson]

The NWS algorithm goes bonkers occasionally due to dealiasing errors, etc. In GR3, select View->NMD Filter Settings... and make sure that "NMD has Valid Cell ID" is checked. That will eliminate many of the bogus NMD icons. Play around with the other filter settings to get rid of the rest of the bogus icons.

Mike

 

[Danny Neal]

I'm wondering if everyone is talking about the same color differences between Nathan's and Danny's displays. It looks like Nathan's is set to display a 'BR 248' which I believe is a custom display. I can't tell what Danny's is set for. Either way, thanks for the comment about the force 16 bit smoothing. I just updated mine for the correction.

I was set for BR248 as well. I use a different radar display than most. Downloaded different color tables.

 

[Craig Schultz]

Was that the leftovers of hurricane Ike? If so, does this seem to happen a lot when a tropical storm moves that far inland? Up here on the tundra I really don't follow hurricanes--the only storms we seem to get lately involve shelf clouds.