Dual-polarization data isn’t flowing to most people yet — based on my experience with the upgrade at Sterling, VA earlier this year, a day or two of calibration is still needed before the products are turned on over the Level III data stream (which serves a majority of the radar apps out there, including GRLevel3 and RadarScope). Dual-pol moments are available over Level II, though I’ll wait to rely too heavily on them until NWS gives the data its public blessing.
It’s cool to be getting a few scans of live Level II dual-pol data from the Charleston radar site tonight, presumably as testing continues on the upgrade. This particular screenshot shows the Correlation Coefficient product, which essentially helps a radar operator identify what’s precipitation and what isn’t. One way meteorologists use the CC product (called RHO in GR2Analyst due to its roots in mathematics) is to help identify possible debris signatures associated with severe storms (including tornadoes) (warning: PDF).
Note to my fellow weather nerds and enthusiasts: While it’s fun to look at, this data needs calibration and won’t be reliable until NWS says it’s live. You also won’t see it in RadarScope or GRLevel3 (2.x) until that time. Stick with Columbia, Wilmington, and the other surrounding radars for now.
For more, take a look at NWS Charleston’s Facebook post earlier Sunday.
It was privatized before my time, which is why I never knew. I do remember its programming during the ’90s (a lot of which was still really good) before the shift to more commercially-viable programming in this decade.
(Boy, it’s a sad state of affairs when educational programming is not seen as commercially viable…)
We’ll see more high pressure wedges as the winter rolls on. If you love this cooler weather, it won’t be around to see tomorrow; if you hate this cooler weather, it’ll be much nicer tomorrow (with a thinning cloud deck to boot).
I don’t agree with his politics but the videos are pretty entertaining.
Remember when Twitter had this kind of energy and enthusiasm around it?
Noteworthy: Several feet of snow have been dumped on northern Minnesota by an unnamed early-season winter storm.
— ChuckGrassley (@ChuckGrassley) October 4, 2012
Will be keeping an eye on the debate for a little while tonight. What better way to try the new WordPress live blog plugin than to try live-blogging the debate? Here we go…