{"id":1888,"date":"2011-09-16T03:15:00","date_gmt":"2011-09-16T08:15:00","guid":{"rendered":""},"modified":"2020-03-27T21:18:32","modified_gmt":"2020-03-28T02:18:32","slug":"bat-signal-over-texas","status":"publish","type":"post","link":"https:\/\/henrymelton.net\/2\/2011\/09\/16\/bat-signal-over-texas\/","title":{"rendered":"Bat Signal over Texas"},"content":{"rendered":"<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/henrymelton.net\/2\/wp-content\/uploads\/2011\/09\/BatSignal.jpg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img decoding=\"async\" border=\"0\" src=\"https:\/\/henrymelton.net\/2\/wp-content\/uploads\/2011\/09\/BatSignal.jpg\" \/><\/a><\/div>\n<p>\nI&#8217;ve been watching the Central Texas bats on radar for some time now, so I&#8217;ve grown quite familiar with their patterns and know when they appear. &nbsp;A couple of times now, I&#8217;ve seen one of the downsides of the bats-on-radar. As actual real thunderstorms begin to move into the area, the computerized storm track detectors that filter the Nexrad radar signals and try to make sense out of them get confused.<\/p>\n<p>It happened again tonight, and I was quick enough on the screen capture keystrokes to catch the bogus signal before the real weather people removed it. &nbsp;In the image above, that greenish patch around the Austin area is &#8216;mostly&#8217; bats. &nbsp;There are some clouds running from Waco through Bryan that are real moisture with water droplets in them. &nbsp;But the rest of that patch running Round Rock to San Antonio is a bat signal. <\/p>\n<p>The danger is that we have to put up with such false positive alerts because of the real ones. See that diamond shape half-way between Austin and Abilene? &nbsp;That&#8217;s a real thunderstorm.<\/p>\n<p>Here&#8217;s a different look at the same radar signal seen through the RadarScope program. &nbsp;Because I&#8217;ve been watching the radar all day long (it&#8217;s my &#8216;screen saver&#8217; on my media server), I knew what was bats and what was weather, but it&#8217;s not obvious from one screen image. &nbsp;And it certainly wasn&#8217;t obvious to the Nexrad computer system.<\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"http:\/\/1.bp.blogspot.com\/-j1N_t8ZEjVQ\/TnKvsqlVeuI\/AAAAAAAAA_E\/JFD1m9Tk__U\/s1600\/Screen+Shot+2011-09-15+at+8.46.01+PM.png\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img decoding=\"async\" loading=\"lazy\" border=\"0\" height=\"300\" src=\"https:\/\/henrymelton.net\/2\/wp-content\/uploads\/2011\/09\/ScreenShot2011-09-15at8.46.01PM.png\" width=\"400\" \/><\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;ve been watching the Central Texas bats on radar for some time now, so I&#8217;ve grown quite familiar with their patterns and know when they appear. &nbsp;A couple of times now, I&#8217;ve seen one of the downsides of the bats-on-radar. As actual real thunderstorms begin to move into the area, the computerized storm track detectors&hellip; <a class=\"more-link\" href=\"https:\/\/henrymelton.net\/2\/2011\/09\/16\/bat-signal-over-texas\/\">Continue reading <span class=\"screen-reader-text\">Bat Signal over Texas<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1889,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[1],"tags":[144,145,146,147],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/henrymelton.net\/2\/wp-content\/uploads\/2011\/09\/BatSignal.jpg","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4t90x-us","_links":{"self":[{"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/posts\/1888"}],"collection":[{"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/comments?post=1888"}],"version-history":[{"count":1,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/posts\/1888\/revisions"}],"predecessor-version":[{"id":1891,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/posts\/1888\/revisions\/1891"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/media\/1889"}],"wp:attachment":[{"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/media?parent=1888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/categories?post=1888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/tags?post=1888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}