Tag Archives: gr2analyst

GR2Analyst 2.0 is a really welcome upgrade

GR2Analyst 2.0 radar screenshot

GR2Analyst 2.0 (branded as #chswx Analyst) looking at the KGSP radar Saturday afternoon. (Alas, a quiet day in Charleston.)

A big upgrade to one of my go-to radar analysis tools, GR2Analyst 2.0, is now out, allowing for a uniform presentation between it, GRLevel3, and GREarth, all tools I use on a regular basis. Here’s what I particularly like about GR2Analyst 2.0 (and, in many cases, the 2.x series of GR products in general):

  • Easy movement between panel configurations. The GR radar viewers let you split the screen into 2 and 4 panels to assist in more rapid and accurate diagnosis of radar features, and you can assign up to 8 panel configurations to the number keys 1-8 for quickly flipping through them. For instance, I’ll be looking at radar when I see an area of what looks like rain moving into the area; I can hit the ‘4’ key which brings up a two-panel view of reflectivity and correlation coefficient (a dual-polarization product) which can pretty quickly tell me if I’m dealing with something meteorological or not. I also have presets saved with four-panel views of varying tilts of a storm’s reflectivity and velocity, a four-panel view for tornado debris detection, as well as a four-panel view which focuses on locating areas of damaging winds and large hail. I have similar presets in GRLevel3 especially surrounding hydrology (rainfall products do not currently exist in GR2Analyst because they are not base data).
  • Right-click to zoom. Previous versions of the GR products required enabling a separate zoom tool; now, just hold the right mouse button and drag and it zooms in on an area. This works really well on my Magic Mouse; on the trackpad, I more typically just flick upward to zoom in, though if I hold Control and drag, that will have the same effect.
  • A cleaner overall presentation. Being able to choose the widths of lines and add borders and highlights to many of them reduces the potential for confusion between state and county lines when using shades of gray to delineate them. I also appreciate that cities are outlined and not tied to a specific point and that warnings have similar borders and highlights now. One cool thing in the 2.x GR products is their ability to parse through tornado warning text and apply special highlights if the tornado is reported on the ground or the NWS employs “Tornado Emergency” wording.
  • A long-standing bug with Flash Flood Warnings has been fixed. In previous versions of GR2Analyst, if a flash flood warning is extended using a Flash Flood Statement, it did not know about it and would remove or fail to rebox the polygon despite the fact the warning would continue for at least part of the area. The 2.x series of GR products fixed this bug and I’m glad I’ll have consistent flash flood polygon display again across all my software packages.
  • I can maintain one set of color tables. At long last, my gigantic GR 1.x color table folder can either be purged or converted to GR 2.x-compatible color table files. Incompatible color tables were a big growing pain during the transition to the new products; I’m glad this transition is over for me. (People who use vanilla GRLevel2 will still need to maintain older color tables.)

The GR 2.x series also ships with the ability to acquire high-resolution background imagery from various sources (depending on zoom level). While beautiful, the Landsat imagery isn’t terribly compatible with a lot of my more advanced color tables designed to help subtle features stand out; I also find that in my Windows XP virtual machine the Landsat background, when combined with the METAR placefile from AllisonHouse, causes a big drag on performance. I’m not sure if I’m going to keep the background enabled in Analyst as a result. Otherwise, though, performance is great in the VM — really surprisingly good considering it is running against a Core 2 Duo.

All in all, the new GR2Analyst will make it that much easier to do what I do over on @chswx, and that is pretty outstanding. (A free upgrade because I bought the dual-polarization addon for 1.x helps, too.)

Fires Near Myrtle Beach

Volumetric analysis of KILX radar over Myrtle Beach. Note small smoke plumes.

Volumetric analysis of KILX radar over Myrtle Beach. Note small smoke plumes.

It’s never good when a fire registers on a weather radar, and well enough to show up in a vertical cross-section to boot. My thoughts are with those who are under siege from wildfires near Myrtle Beach. As a San Diego native whose family has been under repeated threat from wildfires over the last several years, I’m very sensitive to such situations.