andyhb Posted September 4, 2011 Author Share Posted September 4, 2011 Tuscaloosa: Ridiculous Couplet Link to comment Share on other sites More sharing options...
andyhb Posted October 7, 2011 Author Share Posted October 7, 2011 Oct. 6: North of Brewster, KS Link to comment Share on other sites More sharing options...
Fred Gossage Posted October 10, 2011 Share Posted October 10, 2011 Keep in mind that in fast storm motion cases, such as April 27th, base velocity is not going to give you a great representation of the strength of storm rotation.... because the forward motion will help to "mask" it. This is why storm relative velocity was created. To get this on GR2Analyst, you must not only select SRV, but you must give the program a storm motion. Below are the steps for that. 1. Pick an easily identifiable feature on the radar, such as a debris ball or something... then go back in time one frame. 2. Right click where that feature is located on the previous frame and select Place Marker Here. 3. Jump back forward to the latest frame and right click where the same storm feature on the radar is currently located, and then select Storm Motion from Marker. This is important, not only because it gives you an SRV from the raw base velocity product, but also because it allows corrections with the volumetric data... which helps with more accurate hail estimates, placement of the hail markers, etc. Link to comment Share on other sites More sharing options...
on_wx Posted October 19, 2011 Share Posted October 19, 2011 This is pretty crazy for the Florida Everglades Link to comment Share on other sites More sharing options...
andyhb Posted October 19, 2011 Author Share Posted October 19, 2011 Yeah, have been monitoring that. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted October 19, 2011 Share Posted October 19, 2011 120kt g2g at 1400ft Link to comment Share on other sites More sharing options...
OceanStWx Posted October 21, 2011 Share Posted October 21, 2011 By far the least impressive radar image, but a tornado image nonetheless (and a look at what I have to deal with now ). Part of the outbreak in New England on June 1st (same day of the Springfield, MA EF3). Maybe even more rare than the number of discrete supercells (right and left movers too) in the GYX CWA, might be the fact that this tornado was captured by a camera. Pretty sure that this was moving towards and to the right of the photographer as the tornado developed and quickly occluded (a new meso and hard right turn commenced over the next 20 minutes). But a well defined wall cloud, RFD cut and separated updraft/downdraft. Link to comment Share on other sites More sharing options...
jrips27 Posted November 23, 2011 Share Posted November 23, 2011 Somehow I hadn't seen this thread before now... but wow what a spectacular thread. April 27th really was an incredible day. So thankful that none of those long-tracked tornadoes came into the Atlanta metro area. That would've been horrible. Link to comment Share on other sites More sharing options...
andyhb Posted November 24, 2011 Author Share Posted November 24, 2011 Somehow I hadn't seen this thread before now... but wow what a spectacular thread. April 27th really was an incredible day. So thankful that none of those long-tracked tornadoes came into the Atlanta metro area. That would've been horrible. You folks there got really, really lucky. Link to comment Share on other sites More sharing options...
SquatchinNY Posted April 7, 2012 Share Posted April 7, 2012 Andy, are those GR3, GR2, or GRAnalyst? Link to comment Share on other sites More sharing options...
andyhb Posted April 7, 2012 Author Share Posted April 7, 2012 They're all different I believe, these aren't my own GR images, they've been compiled from this site and across the web. Link to comment Share on other sites More sharing options...
B-Rent Posted April 7, 2012 Share Posted April 7, 2012 If you see it is for sure GR3 If you see it is for sure GR2/AE The other images are a crap shoot, some are 2 some are 3. The basic functionality is the same. Link to comment Share on other sites More sharing options...
B-Rent Posted April 7, 2012 Share Posted April 7, 2012 And for the love of God, I hope people turn smoothing off for their screen caps this year. Link to comment Share on other sites More sharing options...
andyhb Posted April 7, 2012 Author Share Posted April 7, 2012 Will be starting a thread for this year once we get a couple more events. Link to comment Share on other sites More sharing options...
L.B. LaForce Posted April 7, 2012 Share Posted April 7, 2012 Does anyone have the Color Table for this Spectrum Width image? I've been looking for this ever since 4/25! Here you go: units: KTS step: 2 decimals: 1 color: 0.0 0 128 255 color: 0.1 20 5 72 color: 7 84 38 178 color: 9.7 188 55 120 color: 14 251 126 33 255 255 0 color: 19 255 255 255 192 192 192 color: 50 255 0 0 Link to comment Share on other sites More sharing options...
Superstorm93 Posted April 7, 2012 Share Posted April 7, 2012 I was going to post some of my stuff, but I see all of it is already here. lol Link to comment Share on other sites More sharing options...
SquatchinNY Posted April 7, 2012 Share Posted April 7, 2012 Can someone explain for me Dualpole radar? What is it? Link to comment Share on other sites More sharing options...
B-Rent Posted April 7, 2012 Share Posted April 7, 2012 Can someone explain for me Dualpole radar? What is it? http://www.wdtb.noaa.gov/courses/dualpol/outreach/ Sent from my ADR6400L Link to comment Share on other sites More sharing options...
Superstorm93 Posted April 7, 2012 Share Posted April 7, 2012 Andy, are those GR3, GR2, or GRAnalyst? Some of those were GRE. Link to comment Share on other sites More sharing options...
B-Rent Posted April 8, 2012 Share Posted April 8, 2012 Some of those were GRE. Technicalities. Link to comment Share on other sites More sharing options...
Superstorm93 Posted April 8, 2012 Share Posted April 8, 2012 Technicalities. Quite. (CASA Radar network) Link to comment Share on other sites More sharing options...
cyclone77 Posted April 8, 2012 Share Posted April 8, 2012 And for the love of God, I hope people turn smoothing off for their screen caps this year. Agree to disagree. I prefer smoothing for level II reflectivity. Link to comment Share on other sites More sharing options...
Stebo Posted April 8, 2012 Share Posted April 8, 2012 Agree to disagree. I prefer smoothing for level II reflectivity. I agree with you, I smooth the level 2 data out when using GR2AE. Link to comment Share on other sites More sharing options...
B-Rent Posted April 8, 2012 Share Posted April 8, 2012 I'll smooth some products, MEHS, POSH, VIL, NROT (I can't remember if you can?) but I just don't like the look of smoothed reflectivity. Can you smooth the new DP products? Link to comment Share on other sites More sharing options...
wxmeddler Posted April 8, 2012 Share Posted April 8, 2012 I'll smooth some products, MEHS, POSH, VIL, NROT (I can't remember if you can?) but I just don't like the look of smoothed reflectivity. Can you smooth the new DP products? Yes, in fact sometimes it's worth it to smooth it. Zdr and CC can be very noisy. Smoothing helps pick out patterns. Link to comment Share on other sites More sharing options...
Superstorm93 Posted April 9, 2012 Share Posted April 9, 2012 Yes, in fact sometimes it's worth it to smooth it. Zdr and CC can be very noisy. Smoothing helps pick out patterns. The L2 DP products are incredibly noisy in most situations. Smoothing is a must sometimes. Link to comment Share on other sites More sharing options...
wxmeddler Posted April 9, 2012 Share Posted April 9, 2012 4/25 Arkansas Vilonia Tornado: Tuscaloosa: Some Cell in EC TX on 4/26: Link to comment Share on other sites More sharing options...
LocoAko Posted April 9, 2012 Share Posted April 9, 2012 Yes, in fact sometimes it's worth it to smooth it. Zdr and CC can be very noisy. Smoothing helps pick out patterns. I don't like the idea of smoothing Zdr and RhoHV. They are often noisy but a lot of that noise is valuable. Some RhoHV signatures are so small that smoothing may lose them entirely, or at least make them harder to identify. I personally think the best bet is to just learn how to identify noise v. signatures. Link to comment Share on other sites More sharing options...
OceanStWx Posted April 9, 2012 Share Posted April 9, 2012 Yes, in fact sometimes it's worth it to smooth it. Zdr and CC can be very noisy. Smoothing helps pick out patterns. I smooth mine as well. Dual-pol variables are 1.0o azimuthal resolution in AWIPS because they are recombined at the RPG to 1.0o, so operationally we actually never see super res dual-pol data. That being the case, I don't see a need to see super res on GR2Analyst and find it quite distracting with all the noise. Link to comment Share on other sites More sharing options...
Superstorm93 Posted April 10, 2012 Share Posted April 10, 2012 DP for the Chickasha storm: "The Beginining of The End" 20+ Cells along the Plains Bomb: Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.