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View Full Version : May 31, 2010 Stormchase in Middlesex


Itchy
06-01-2010, 03:51 PM
Was an interesting day, so muggy and humid the style of storms I saw today reminded me of August for some reason. Anyways I intercepted the storm that got all the attention around London. I saw the storm just as it was over Strathroy and right before it began its big hail dump around Byron. The cell at the beginning looked a lot like the one I saw last year on the 20th of August before it sped away at 90 km/h. I never sampled the core of the first storm so I can't confirm sizes of hail etc.....

Here is a radar grab around the time these first few images were taken, I position myself in that notch with the core above and below it and faced west.
http://farm2.static.flickr.com/1297/4658517644_3ded0ea2c1_b.jpg

It seemed like a regular set of storms when I first arrived as well but it just seemed to get stronger and stronger. It was pretty slow at first as well, nice change compared to earlier storms. These first few shots are of an updraft and its RFB wedged between the two cores, I'm on London's Southwest edge looking roughly west. There was a nice warm inflow flowing steadily into the base from my vantage point.

http://farm5.static.flickr.com/4016/4658480132_be050d2646.jpg
http://farm5.static.flickr.com/4060/4657559515_efd394bbc4.jpg

The base began to form a collar and cg's started pouring out from the cores, only a slight bit of rotation was evident right now.
http://farm5.static.flickr.com/4064/4657895081_4d3665b224.jpg
http://farm5.static.flickr.com/4020/4657581975_5236c2baee.jpg
http://farm2.static.flickr.com/1282/4658210542_98d00e696a.jpg
http://farm5.static.flickr.com/4019/4657884909_156fa3ebeb.jpg

The left side was picking up scud and showing some rotation as well
http://farm5.static.flickr.com/4012/4658218290_9a6a415049.jpg

Around now things changed the cell began to get some noticeable rotation in the base and began to head ENE at a much
faster pace

I'm now looking roughly NW as the cell began to head east past me to my north , this was eastern edge of the collared base.
http://farm5.static.flickr.com/4004/4657604327_16e4ce0528.jpg

Looking west
http://farm5.static.flickr.com/4057/4657619201_451cf2227f.jpg

Around now Byron to my south was probably starting to get nailed by hail


The cell was really growing at this point and showed some nice wind sculpted structure, these shots are looking roughly N/NW
http://farm5.static.flickr.com/4049/4658268212_28071ca8af_b.jpg
http://farm5.static.flickr.com/4016/4658277430_4a41c8b2dd_b.jpg
http://farm5.static.flickr.com/4006/4657672451_6b02c8b042_b.jpg

Looking west again
http://farm2.static.flickr.com/1302/4657663711_3c6dd9e962_b.jpg

This little guy would have been right around Strathroy, couldn't make out the motions though through the rain.
http://farm5.static.flickr.com/4005/4658303446_3e442e7a1d_b.jpg

And then this thing must have formed fast, it was to my SW it had some rotation in it and rapid lift, almost like some kind of inflow tail for the base to its north
http://farm2.static.flickr.com/1284/4658311286_15e9abb4ec.jpg

I then had to get ahead of the cell, by the time I was on the SE edge of London it had morphed into a monster with rotation on radar for a brief moment. A gust front had formed on the southern side and was creating a dust storm as well as a possible gustnado briefly, I took these shots on an exit for the 401 in London. I think it was the Wellington one, the outflow was so strong I was leaning into it!

Here are some radar grabs around the time of the following sets of images
http://farm5.static.flickr.com/4020/4658517574_f7e6f63616.jpg
http://farm2.static.flickr.com/1268/4657895299_922efa4821_b.jpg



Looking northeast at an updraft feeding into the storm
http://farm2.static.flickr.com/1308/4657696035_88ba8ba1ee.jpg

The storm was too close to get a picture of the leading edge sadly, it would have been a picture of textured grey lol.
here was the view north
http://farm2.static.flickr.com/1291/4658326262_a72d89bdc7_b.jpg
http://farm5.static.flickr.com/4039/4658354572_59bf701b31_b.jpg

This was looking Southwest, there was a mess of outflow hitting the ground and some shot lived spin ups where occurring
http://farm5.static.flickr.com/4065/4658333786_ac6c947ef7_b.jpg
http://farm5.static.flickr.com/4014/4658347846_cb9e0beaab_b.jpg

Interesting note is that there was some isolated rotation above this quick spin up
http://farm2.static.flickr.com/1282/4658340882_6ae216f73f_b.jpg

Soon after this storm began to fall apart, would have been so easy keeping up given the area it was headed....sigh
Anyways I was tired and decided to do just a brief intercept of the second cell that hit London. So many cg's with this one and blinding rain as I let this ones core pass overhead. There was a large line in front of the core. It had random lowering like the one in the video feeding into the base with some good motions and slight rotation.

This is around the time I took the video, I was on the NW edge of town.
http://farm5.static.flickr.com/4062/4658518028_822dc92284_b.jpg

Here is a video looking west
http://farm5.static.flickr.com/4046/4664121101_fabf394e4b_b.jpg

And a youtube video of the day with timelapse at the end

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nachos_666
06-01-2010, 05:05 PM
beautiful storm pics!. and london, ontario had a few funnel clouds as well. but none had touched down. I was leaving work, when my husband pointed up at the sky, and there was a funnel cloud at the end of the driveway.. it looked cool..too bad it was at the end of the storm. i had a co worker leave work earlier than I and she said that she was sure it was going to go further down the sky. sorry if the picture is grainy..it was taken from my cell phone... the first picture is mine...the second is from another person.

the storm was fast coming in, and it was to leave. but winds were very strong and gusty, and the rain was unbelievable!:D

DarkSky
06-01-2010, 05:22 PM
Great shots guys! Really nice cloud base on those Itchy. Nice dust gust under that shelf cloud too. We got nothing here in Niagara except for some heavy rain last night and a few good boomers, but that was it.

Itchy
06-01-2010, 05:46 PM
Great shots guys! Really nice cloud base on those Itchy. Nice dust gust under that shelf cloud too. We got nothing here in Niagara except for some heavy rain last night and a few good boomers, but that was it.

It's been brutal around Niagara so far for chasing this year.I think London and surrounding counties have been the place to be so far, and now looks like the next good day will be nearby too. I'm being spoiled by Nature!

Derecho
06-01-2010, 06:04 PM
It's been brutal around Niagara so far for chasing this year.I think London and surrounding counties have been the place to be so far, and now looks like the next good day will be nearby too. I'm being spoiled by Nature!

London and Mount Forest/Hanover/Barrie always get the good stuff!

xxCanuck
06-01-2010, 08:02 PM
Great shots guys! Really nice cloud base on those Itchy. Nice dust gust under that shelf cloud too. We got nothing here in Niagara except for some heavy rain last night and a few good boomers, but that was it.



That was about all we got here. Not much as of this point.