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Gen. Chat “Timeline of the Friday "derecho"” by Kumba

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Kumba 2 years ago on 07/02/12
Equipped: Most Amazing Thing Ever!!!! named "Silmarils, gems of treelight"
Anyone caught up or affected by the damage caused by Friday's "derecho" might find this timeline interesting:
http://wtop.com/...683/Timeline-of-Fridays-ferocious-storm

Seems to me that the Storm Prediction Center slightly underestimated this just a little bit, but the flipside is that they did note there was a lot of variability in the amount of instability within the atmosphere. After all, weather isn't an exact science, especially in predicting convective systems, and this is one of those freak "storm of the century" events, too.

How many were or still are affected? Who has power and other utilities and who doesn't? How many have, so far, had to toss spoiled food and the like? This wasn't confined just to the DC area, though the way the local news covers it, it sounds like we were hit hardest. Thoughts from those elsewhere in this thing's path?

I'll admit I'm a lot luckier than most. Power went out for only about ~20 minutes, long enough to knock my UPS units out and shut my computers down while I was at work. Perks of living near a fire department, I figure -- they get priority in getting power restored. However, other areas in my county were not so lucky -- some have been without power for almost three days now. I know people in other parts of the DC area with older electric infrastructure are even more affected and will probably lack power all week long.

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Oshi 2 years ago on 07/02/12
Equipped: Galaxy's Most Dangerous Cute Lifeform: "Metriod" named "Squish"
No power loss or high winds here west of Philly, but some FUCKING SWEET lighting. Literally I saw the longest & most branching bolt I've ever seen in my life. Stretched the whole sky from west to east, branching a good 35-40 degrees zenith. Just by chance, looked out my back door at the right time.

That radar... I thought it wasn't going to hit us the way it was moving southeast, but started moving due east and just got us.
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fukkake 2 years ago on 07/03/12
Equipped: Cockblast of Vengence named "Crotchfire!"
Man, I was up in Central NJ and we got the most awesome lightening storm but nothing else. Some of my friends in South Jersey are going to be without power until Friday... crazy stuff!

Kumba, what is a "derecho" exactly? I have heard so many variations in definitions over the past few days that, even me being weather savvy, I am a bit confused.
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Kumba 2 years ago on 07/03/12
Equipped: Most Amazing Thing Ever!!!! named "Silmarils, gems of treelight"
Oshi said:
No power loss or high winds here west of Philly, but some FUCKING SWEET lighting. Literally I saw the longest & most branching bolt I've ever seen in my life. Stretched the whole sky from west to east, branching a good 35-40 degrees zenith. Jus...

I watched the storm from a window in my office building on one of the higher floors, and saw several incredible lightning strikes, too. One lasted several seconds where the bolt stayed still for so long, that if I had a camera turned off and sitting near me, I would've had time to grab it, turn it on, aim, and take a picture (assuming I'd configured it for night shots first, at least). Never seen that before...usually, you just have to be lucky to get a good lightning shot.


fukkake said:
Kumba, what is a "derecho" exactly? I have heard so many va...

I don't profess to be an expert in this field, either (just a hobby to learn about the radar tech, really), but I think the Storm Prediction Center's webpage (which looks like it came from the mid-1990's) is the best place to explain it:

Storm Prediction Center said:
A derecho (pronounced similar to "deh-REY-cho" in English, or pronounced phonetically as <img>) is a widespread, long-lived wind storm that is associated with a band of rapidly moving showers or thunderstorms. Although a derecho can produce destruction similar to that of tornadoes, the damage typically is directed in one direction along a rstraight swath. As a result, the term "straight-line wind damage" sometimes is used to describe derecho damage. By definition, if the wind damage swath extends more than 240 miles (about 400 kilometers) and includes wind gusts of at least 58 mph (93 km/h) or greater along most of its length, then the event may be classified as a derecho.)

http://...noaa.gov/.../AbtDerechos/derechofacts#definition
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Matthew 2 years ago on 07/03/12
Equipped: Jar of Pickles named "Lisa's Long-Lost Birthday Pickles"
We were very lucky, LOTS of people in Columbus are without power but ours was out for forty seconds tops (!!). I think our next-door neighbors were out for days. The wind blew Lisa's ghost peppers seedlings tray right off the porch, but after the debris stopped flying I was able to locate it and salvage most of the seedlings (!!). We had some big limbs down, but nothing I couldn't haul by hand into a pile. The office our apartment is attached to has turned the entire front lawn into a community/office garden and it fared remarkably well, the biggest casualty was a budding sunflower or two (planted at the curb as a screen to protect the crops up in the yard proper).

We had another pretty good storm rip through here two days ago, Lisa and I watched a good part of it on our porch. Not even covered, but the rain held off so long we were able to watch distant lightning strikes and the wind blow stuff down the street. Probably not the safest entertainment, but fuck it, summer storms are too beautiful to miss.
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the.avidpedestrian 2 years ago on 07/03/12
Equipped: Apple named "hot for teacher"
I'm in Dayton. I was actually at the mall when the storm blew in, and it was scary as shit. It sounded (and kind of looked) like a tornado was coming up, to be honest. The wind blew down a wall where they are building a Dick's onto the mall. Then the same wall was blown down again when another storm blew through Sunday. We didn't lose power Friday, but we did for a couple hours on Sunday. The next street over is still without power from Friday, though. Of course, like most people, there are some huge trees and limbs down, as well. On my way home from the mall, there were two HUGE oak trees blocking the only detour for a bridge under construction that goes through a residential neighborhood. The one tree you could get around, only to see the other one about 10 feet away that was impassible. The power company was giving away ice and setting up "cooling centers" Monday. At first, they were saying people would get power back on Wednesday, when there were like 31,000 people. Now it's down to about 3200 people, according to the news, who are supposed to be without power until Friday or Saturday.

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