andyhb Posted August 30, 2020 Share Posted August 30, 2020 Those are absolutely bonkers. 2 Link to comment Share on other sites More sharing options...
cyclone77 Posted August 31, 2020 Share Posted August 31, 2020 23 hours ago, hlcater said: 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. Extremely impressive vids. The aftermath videos showing huge amounts of tree debris in front of literally every residence is amazing as well. These vids were shot on Pine Wood Drive NE in northern Cedar Rapids, pretty close to Hiawatha. The church losing it's roof is River of Life Church. Church viewed from the northwest side. 1 Link to comment Share on other sites More sharing options...
hlcater Posted August 31, 2020 Share Posted August 31, 2020 uhhhh 25mb/7min is pretty insane... 4 Link to comment Share on other sites More sharing options...
Hoosier Posted August 31, 2020 Share Posted August 31, 2020 10 minutes ago, hlcater said: uhhhh 25mb/7min is pretty insane... Whoa, that is pretty cool. Probably on the order of what you would see in some hurricanes as the eyewall moves in. 3 Link to comment Share on other sites More sharing options...
hlcater Posted August 31, 2020 Share Posted August 31, 2020 Just now, Hoosier said: Whoa, that is pretty cool. Probably on the order of what you would see in some hurricanes as the eyewall moves in. 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. 1 Link to comment Share on other sites More sharing options...
Hoosier Posted August 31, 2020 Share Posted August 31, 2020 1 minute ago, hlcater said: 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. Interesting. Would've thought that high end hurricanes had a faster drop than that. 1 Link to comment Share on other sites More sharing options...
hlcater Posted August 31, 2020 Share Posted August 31, 2020 Just now, Hoosier said: Interesting. Would've thought that high end hurricanes had a faster drop than that. 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. 1 Link to comment Share on other sites More sharing options...
Hoosier Posted September 1, 2020 Share Posted September 1, 2020 8 minutes ago, hlcater said: 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. Out of curiosity I went back and checked the obs from Laura in Lake Charles. It may not have captured the maximum pressure drop rate there since the sensor failed at 132 mph in the eyewall, but they dropped 23 mb in 1 hour. This was 25 mb in about one tenth of the time. Maybe some of the most intense hurricanes have a quicker drop rate than what Josh experienced, but this derecho was something else. We know about the extreme pressure drops that can occur in tornadoes (even within seconds) but I never thought an MCS was capable of something this dramatic. 3 Link to comment Share on other sites More sharing options...
hlcater Posted September 1, 2020 Share Posted September 1, 2020 1 minute ago, Hoosier said: Out of curiosity I went back and checked the obs from Laura in Lake Charles. It may not have captured the maximum pressure drop rate there since the sensor failed at 132 mph in the eyewall, but they dropped 23 mb in 1 hour. This was 25 mb in about one tenth of the time. Maybe some of the most intense hurricanes have a quicker drop rate than what Josh experienced, but this derecho was something else. We know about the extreme pressure drops that can occur in tornadoes (even within seconds) but I never thought an MCS was capable of something this dramatic. 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. Link to comment Share on other sites More sharing options...
CheeselandSkies Posted September 1, 2020 Share Posted September 1, 2020 Maybe super-compact intense hurricanes like Andrew and Charley had similar pressure drops in their cores. 1 Link to comment Share on other sites More sharing options...
Brian D Posted September 7, 2020 Share Posted September 7, 2020 Dr Roy Spencer put up a blog post concerning this event. Read it here. Shows how often derechos hit certain areas of the country and sat image comparison. http://www.drroyspencer.com/2020/09/derecho-iowa-corn-damage-imaged-by-satellite/ Link to comment Share on other sites More sharing options...
hawkeye_wx Posted September 8, 2020 Share Posted September 8, 2020 Here are some photos from my neighborhood. The first two are my backyard. Link to comment Share on other sites More sharing options...
hawkeye_wx Posted September 8, 2020 Share Posted September 8, 2020 Next door neighbor and across the street. Link to comment Share on other sites More sharing options...
hawkeye_wx Posted September 8, 2020 Share Posted September 8, 2020 Across the street again, then a couple houses up from there. Link to comment Share on other sites More sharing options...
hawkeye_wx Posted September 8, 2020 Share Posted September 8, 2020 A couple houses up the street from me. Corner house at the entrance to my street. 1 Link to comment Share on other sites More sharing options...
hawkeye_wx Posted September 8, 2020 Share Posted September 8, 2020 Corner of the street entrance, opposite side. This tree was broken off at the ground and tossed 30 ft. Interesting photo.... all the trees along the right side of the street are still standing while all the trees on the left side were blown down. 1 1 Link to comment Share on other sites More sharing options...
cyclone77 Posted September 8, 2020 Share Posted September 8, 2020 ^ NIce pics Hawkeye, thanks for sharing! 1 Link to comment Share on other sites More sharing options...
hawkeye_wx Posted September 8, 2020 Share Posted September 8, 2020 Looking down the next street... our sister street. Link to comment Share on other sites More sharing options...
hawkeye_wx Posted September 8, 2020 Share Posted September 8, 2020 The top of the sister street where it meets the main avenue. Across the avenue is a dumpy mobile home area. Many of the big, old trees in that area look like the ones in this photo. Many of the crappy homes got ripped up, too. 2 Link to comment Share on other sites More sharing options...
hlcater Posted September 8, 2020 Share Posted September 8, 2020 What a storm. 2 Link to comment Share on other sites More sharing options...
Natester Posted September 14, 2020 Share Posted September 14, 2020 This video was uploaded on August 17, taken possibly at Lindale in Cedar Rapids. Highlight of this video is the husband is very calm while the wife is freaking out. 2 Link to comment Share on other sites More sharing options...
cyclone77 Posted September 14, 2020 Share Posted September 14, 2020 10 minutes ago, Natester said: This video was uploaded on August 17, taken possibly at Lindale in Cedar Rapids. Highlight of this video is the husband is very calm while the wife is freaking out. She sounds like she was in a glass case of emotions. Link to comment Share on other sites More sharing options...
hlcater Posted October 17, 2020 Share Posted October 17, 2020 Well that was inevitable 2 Link to comment Share on other sites More sharing options...
Hoosier Posted October 17, 2020 Share Posted October 17, 2020 Incredible Link to comment Share on other sites More sharing options...
StormfanaticInd Posted October 17, 2020 Share Posted October 17, 2020 30 minutes ago, hlcater said: Well that was inevitable Yikes!!!! Link to comment Share on other sites More sharing options...
hawkeye_wx Posted October 17, 2020 Share Posted October 17, 2020 I just drove by that apartment building yesterday. It is 1.5 miles to my sw. The building doesn't look much different now. 1 Link to comment Share on other sites More sharing options...
A-L-E-K Posted October 18, 2020 Share Posted October 18, 2020 Respectable number Link to comment Share on other sites More sharing options...
hlcater Posted January 24, 2021 Share Posted January 24, 2021 Talk in the storm thread reminded me that I should update that the damage total is now up to 11 billion in NOAA's final 2020 analysis. https://cbs2iowa.com/news/local/derecho-damage-adjusted-to-11-billion 1 Link to comment Share on other sites More sharing options...
RCNYILWX Posted January 24, 2021 Share Posted January 24, 2021 Talk in the storm thread reminded me that I should update that the damage total is now up to 11 billion in NOAA's final 2020 analysis. https://cbs2iowa.com/news/local/derecho-damage-adjusted-to-11-billionAstounding when you consider that it wasn't as bad as it could have been out this way. Had it maintained the massive descending RIJ driven blowdown structure across northern Illinois instead of transitioning to prolific QLCS mesovortex tornado producer, there's no telling how much higher the damage number would've gotten. Sent from my SM-G965U using Tapatalk 4 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now