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Negative lightning flashes lower a net negative charge to the ground (earth), while positive flashes lower a net positive charge to the ground. Positive flashes tend to be single stroke flashes, have a higher peak current than negative flashes on average, and have a longer continuing current than negative flashes on average. This makes positive flashes more prone to igniting wildfires than negative flashes. HOWEVER, there is no solid observational evidence yet that proves positive flashes are more destructive than negative flashes -- an area for further research. Matt Bunkers, Science & Operations OfficerNWS Rapid City, SDHey, Lisa -- "Kiddo" -- sorry I missed your party… I had to move a trailer that afternoon (or else) after returning from 25 days in Texas the day before. Did you get a good 'ol "traditional" St. Joe send-off ?
I've tried several times to write something to ------. But I'm absolutely crushed... and wordless. I wish I could take her away with me for a couple weeks to "Cactus Bob's Cantina" (La Grange Banjo & Fiddle Contest in the Sierra foothills) so we could fix -- even for a little while -- our busted hearts. I've known Cactus Bob for 30 years or more, as a fiddler and friend. He is known to cure all ill's and the Cantina never closes. We can camp right outside his house under the trees on the San Pedro River. The party goes on all weekend long with light hearts and live music everywhere. I'm leaving for there on April 18th and staying until April 28th. No kidding, you're all welcome to come along (I've lots of extra room in my van ! ) -- although I know it's rather a long shot what with work, family, and other obligations. Never-the-less, the thought did occur to me. Please send my regards.
Hey -- here's a little "fire factoid" I'll bet you didn't know regarding lightening detection. Enjoy and/or pass along.
Mark A. SmithFire & Aviation Technician
Craig Mountain PFD
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