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Showing results for tags 'Lightning'.
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- flying past a crazy lightning storm
- stome
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Twitter has safe tornado videos at #kywx and probably other #/@ tags. Atmosphere has tipped its hand on the synoptic fronts. How about boundaries farther south? They are usually second to go; so, this is very much still an ongoing day for Dixie (as of Noon Central Time). Noon Central Time: Differential heating and dewpoint boundary is noted from North Alabama into West Tenn. Another boundary is lifting from central Mississippi. They may merge later farther north. Either way looks like locally enhanced helicity in the usual suspect areas of North Alabama into northeast Mississippi and southern Middle Tenn. Upper air wind fields are strong including proper turning with height. 700 mb is a little warm; but, I expect enough surface convergence to overcome. Synoptic trough is coming out of Arkansas, and will bump into the above boundary(ies). North Bama clouds are decreasing both sides of lifting boundary, an ominous sign. Oh that boundary looks like an extension of the Georgia cool wedge-front, where clearing is also seen both sides. Warm mid-levels and neutral heights from yesterday will have less impact if foretasted surface heating materializes. Plus convergence along boundaries should be enough, esp intersecting ones.
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Since met winter is coming to a close it's time for the Spring 2016 Tennessee Valley Edition.I changed the wording on the Nina thread to just Nina and took out the spring discussion.This way there is no confusion with two different topics.
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Thought it's time to start a thread.Will change the dates when it's fine tuned.Feel the GFS to start with is missing the thermals being we have a Caribbean and GOM flow,it's to cold to me to start with,this effects instability.Believe we should see some better instabilities than what is being shown.The flood threat even if the heavy axis of rain isn't shown at the start and more to the west this should still fill the tributaries heading into the Ms River,this should be a big deal with multiple systems being shown through the week
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It's about that time of year again. Flowers are starting to sprout, grass is turning green and there's mud everywhere. Some early Cherry Blossoms are blooming already in DC, but the main show on the tidal basin is still a few weeks away. Based on what I saw Thursday evening, I'd expect peak to be pretty close to what CWG/NPS have forecast. Post what ya got in this thread. Well, keep the naked selfies for your own personal file or send them to rr. Anyway, daffodils in my neighborhood are coming along nicely. I'd expect to see some of them in bloom by the end of the week. Here's a pic of some of those that are not quite as tall as the others. And here are two obstructed view pics of a hawk that's been hanging around the woods getting fat on squirrels, chipmunks and whatever else he may be eating.
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Pretty early to be in a Day 5 outlooked area for severe. Discuss upcoming threats, potential season impacting factors and more in this thread.
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The 6-10 day forecast is hinting at another severe weather sequence from the southern Plains into the Southeast US. Just like last time the models seem to be trending from a Plains highlight to a Dixie Alley highlight. South severe is still 8-10 days away so uncertainty is high. Though one cannot pinpoint details or target areas, in May one can assume severe weather will verify at least 2-3 days out of the 6-10 day period.
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All, For those who haven't seen it yet...the Blitzortung lightning detection network developers have recently deployed a realtime lightning strike map (automatically updating, with typical delays from bolt to display of about 3-10 seconds). http://www.lightningmaps.org/realtime?lang=en (Shown with station tracking enabled) The map starts in Europe, but it's a Google map and you can pan it to the U.S. After that, cookies will keep it starting in the same place. I believe this may be the only free, realtime, auto-updating lightning map of its kind for the U.S. available on the Internet (corrections welcome). For those who are unfamiliar with the Blitzortung network, it's a system of VLF time-of-arrival lightning tracking stations run by volunteers who have built and installed standardized individual sensor systems. The systems feed GPS-tagged (location and timing) lightning data to central servers, which is then processed and turned into location/power/time data. The raw data is available for non-commercial purposes free of charge to all network participants. And we need more stations in the U.S.! Right now, we catch maybe 10-20% of bolts, since the stations we have aren't yet dense enough to catch many of the weaker bolts (it usually requires more than four stations to catch a bolt). By comparison, the network in Europe already catches most weak bolts. If you like to solder (I assume everyone here is interested in the weather), the stations are available at cost (no money is made from them) as kits from the developers. The stations have recently undergone a complete redesign and substantial upgrade, and no longer need to be attached to PC's. They're also now capable of both H- and E-field detection. Total cost for stations, including shipping, is generally below $300. I recently joined the network, and construction was completed in less than a day. More info available here and here, with lots of experience from other volunteers. The Blitzortung Facebook page is another good resource. Enjoy.
