hlcater
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Everything posted by hlcater
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Most models look like that sunday in Iowa. Huge deal if they somehow end up uncapped, but with a reservoir of 14c 700s to the west AND westerly 700mb flow, that's probably not happening.
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Yea 90% certain that Nana gets downgraded in post.
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Some models do Saturday further west, and some more also have a setup on Monday. Saturday may end up capped due to the lack of a well developed wave. Monday might not exist at all, though the 00z Euro and 12z GFS do each have setups on Monday, even though they are vastly different.
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always has been
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hi
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Reminds me of TS gordon off the coast of the glades in 2018. It too had a tiny little eyewall structure and well defined core and it fell apart. My guess is recon sampled a similar feature and as such, my guess is that it's longevity/potency is dubious at best. It'd be interesting if it found a way to maintain it though.
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There's an excellent dataset on wunderground, except it doesn't appear as if any of the PWSs in Benton/Linn actually have data stored for 8/10, go figure.
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As did I, my guess is that due to the scale of the MCV feature, the average gradient generated by an MCV w/strong RIJ is somewhere in between a hurricane and a tornado.
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I checked and it's actually way, way greater. For instance, Josh's censors in Michael at Panama City peaked at ~1.5mb/min. This is 3.0-3.5mb/min, obviously. I'm interested in the context of a reading like that relative to other MCVs/Derechoes so I've been looking for comparable data, particularly BAMEX.
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uhhhh 25mb/7min is pretty insane...
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So Derek Smith?
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You're gonna want to watch these 3 videos. They are the most impressive out of any of the video I've seen so far and are easily on par with a significant, perhaps major, hurricane. MANY gusts over 100mph and the sustained winds are the highest I've seen out of any video.
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Environment looks pretty decent by Caribbean standards, not sure why models are struggling to do much. There's some dryness out ahead of it, but shear is light and when it exists, it seems to be northerly or easterly. Though it's not actually getting much help from upper level divergence, as it is only modest at best.
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0.00 in Iowa City expansion of D1 is probable given the next week+ is cool and dry.
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One drawback is the OFB currently marching south along I80 in Iowa. That's a real excellent feature there
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I like tomorrow for some gusty storms along the cold front. Strong mid level winds, seasonably steep lapse rates and well mixed/inverted V profiles below 700mb yield quite a bit of DCAPE and 15-20 degree spreads. Seems like a solid setup if you're looking for some strong downdrafts. Shear vectors relative to the cold front are quite good as well, and may allow for a few supercells with perhaps some hail despite meager SRH and fairly linear hodographs. Tornado threat may exist in Wisconsin where low level shear isn't god awful, but MCS overnight might take care of that.
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A BP of 210/130 and constant diarrhea of the mouth are just part of the Jeff Piotrowski experience.
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I see people still don't understand what beam attenuation is/how it works.
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They should've named the Iowa Derecho
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Taller than any hurricane ever was. Iowa Derecho >>>> hurricanes except Patricia and Haiyan. I'll let those two slide. (55-60kft)
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Yea! Haven’t you seen those screaming easterlies?
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confine wizard021 and ldub to this thread while you're at it too pls. thx
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Here's a compilation of all the highest gusts I observed in sequential order. Including one that I believe may have been as high as 120. I had initially pegged it at 100ish, but after seeing damage surveys, other videos in the area and of winds that strong(Irma's eyewall), local measurements(primarily atkins 126), it seems as if marking that gust as 120 isn't necessarily implausible. Essentially, all the gusts were best guess measurements using a similar method to that used on the strongest gust, so I hope that they're fairly accurate and they seemed sound to me. But who knows...
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That 126mph wind gust from Atkins is the new Iowa wind speed record if verified.
