Talk:Great Lakes-Atlantic Coast derecho

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[edit] Damage stateside?

Was there also any real damage stateside? That also belongs in the article as it was the same system (rename if necessary).

I just got my power back after 24 hours...likely tornado (probably F1) ON MY STREET!!! CrazyC83 23:05, 18 July 2006 (UTC)

Found significant reports, just as bad as in Ontario. [1] Renamed the article as a result. CrazyC83 01:21, 19 July 2006 (UTC)

I wasn't sure at first if it was officially a derecho (that's why I wrote near derecho status at first), the northeastern one was clearly one and the Weather Network's Chris Scott mentionned that term at about 6 PM. I haven't heard him say that word for the southern Ontario storm, but heard about very strong winds and damage. I'm not sure if it was that line that hit Ottawa at midnight but in less severe fashion, or it was probably a secondary line just north of the derecho or the northern part of the derecho was much weaker.

Well thanks to everyone to add all that info up. Sure it was probably the biggest one in a while. Look out possibly in Wednesday to Friday time frame, there could be another one firing up - Moderate risk in Chicago and Milwaukee today. Slight risk for Detroit, Cleveland, Toronto,Ottawa and Montreal tommorrow. Smells deja vu from 1995 but July 17 reminded me of Labor Day 1998 as one storm races and later another forms further south.

P.S The Larder Lake storm was earlier activity and I think it was not in the path of the derecho, it was in that cluser of storms that affected the Abitibi region of Quebec for several hours and may that cluster may have later merged with the derecho--JForget 19:59, 19 July 2006 (UTC)

Yeah I wouldn't be surprised to see a High Risk go up today in a few spots, and the Moderate go up tomorrow - likely centered around the I-90 corridor. CrazyC83 20:01, 19 July 2006 (UTC)

St. Louis, much farther south than expected, was just hammered by severe winds from the 2nd system...the tornado threat is not here yet. CrazyC83 02:02, 20 July 2006 (UTC)

Parts of Minnesota, Iowa, Illinois and Missouri (incl. STL) hit on 19th and 20th?....should be new section in this article with details to fit it in *as part of a series. St. Louis really hit good on the evening of 19th.

[edit] Possible joint article?

Significant severe weather, in a similar form, is possible in the upper Midwest tomorrow - and the same area on Thursday. Should this become a rare "derecho sequence", should this article be redone to cover both? CrazyC83 23:48, 18 July 2006 (UTC)

[edit] Suggest article De-Merger

The Upper Michigan-northeast Ontario-southern Quebec storm was not directly related to and from early damage assesments far more powerful in force than later storms that fired in areas well south, just it occured in areas with much less population, I belive North Bay, ontario was a largest town that took a direct hit. If you read the derecho page, the progessive derecho definition (which this storm was likely) is a continous thunderstorm or group of thunderstorm cells moving at a brisk forward speed, it can weaken but the source cell but be maintained through its entire lifepsan. Not cells that fire hundreds of miles apart.

Suggest breaking up into sections based of the grouping of cells (sort of the case now) or seperate articles.

I disagree; it was the same system that produced everything. It should be broken into sections. Separate articles are unnecessary IMO when it is the same system. Those were all related on a separate squall line, and what happened last night was a refiring of the same system. Also look at the damage figures and photos, they were just as severe... CrazyC83 16:33, 19 July 2006 (UTC)

However, if today's system requires an article, it could be a separate one, although a name could require some debate. That being said, the only possible precedent (Heat Wave of 1995 Derecho Series) kept them all together despite being separate systems. The last mixed derecho-tornado outbreak (March 2006 Tornado Outbreak Sequence) kept it all together as well. However, the length could be an issue. CrazyC83 16:36, 19 July 2006 (UTC)

I agree its possible that this could be a series, but does each of the storms meet the criteria to be classified as a derecho (MCC - mesoconvective complex) not just MCS (meso-cyclonic storm) see one definition here http://snrs.unl.edu/amet451/miriovsky/what.html. I guess its up to the federal weather agencies to determine this. The northeast of Ontario was no doubt hit with a progressive derecho, no confirmation of any tornadoes.

Suggest changing 'Upper Midwest' heading to 'Upper Midwest-Central Great Lakes', since most areas affected by the cold front were roughly cenred in the middle great lakes (except Chicago area at southern end lakes) and Iowa & N. Missouri away from the lakes in the evening July 17th.

Though occurring in a similar overall synoptic pattern, all these events weren't produced by the same systems. Some could warrant their own article, certainly the St. Louis events were very significant (more so than you would know if outside the area). As it is now, there isn't enough information for separate articles. The article should be renamed derecho "series". Series, btw, is a good name for these multiple successive derecho events. It's descriptive and concise; and there is no term in the literature like there is for tornado outbreaks. The article is a bit messy/rambling, at the least it wouldn't hurt to have a better explication of the meteorological processes involved in the events and a better synthesis of how everything both fits together and is distinct. Evolauxia 01:14, 22 November 2006 (UTC)