News DetailTextbook LP supercell west of Edmonton, AB this evening!
Posted At: July 28, 2007 @ 8:32 PM
Posted By: Reed Timmer
Related Categories: General
An LP supercell developed earlier this afternoon over the foothills west of Edmonton, Alberta, and has since tracked east across the adjacent plains, producing loonie size hail at times. Several severe thunderstorm warnings have been issued for this storm, and a classic rear flank downdraft/forward flank downdraft gust front signature has been evident on radar for several scans. Here is the radar image from around 5:30 pm MT when the storm was at peak intensity:
Yellowhead county near Evansburg, Wildwood and MacKay
6:30 PM MDT Saturday 28 July 2007
Severe thunderstorm warning for
Yellowhead county near Evansburg, Wildwood and MacKay continued
At 6:30 PM an intense thunderstorm was near chip lake. The thunderstorm is tracking east at 25 km/h. Hail near loonie size has been reported with this storm.
Thunderstorms have developed along the foothills. These thunderstorms will move to the east at about 30 km/h. Some of these thunderstorms may become severe giving large hail
Yellowhead county near Evansburg, Wildwood and MacKay
6:30 PM MDT Saturday 28 July 2007
Severe thunderstorm warning for
Yellowhead county near Evansburg, Wildwood and MacKay continued
At 6:30 PM an intense thunderstorm was near chip lake. The thunderstorm is tracking east at 25 km/h. Hail near loonie size has been reported with this storm.
Thunderstorms have developed along the foothills. These thunderstorms will move to the east at about 30 km/h. Some of these thunderstorms may become severe giving large hail
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Reed: So what does this mean...a great storm? And which way is it headed?
I hope someone gets some photos of that one. Whoa! :D
Looks like the above storm west of Edmonton died, and the storm west of Drayton Valley is the next show. It looks like it split a little while back, so i bet it looks amazing. I doubt it will make it to Drayton Valley though. It seems the cap is very strong just east of the mountains.
100 miles SE of the one west of Drayton Valley, and even with the thick haze I can see the overshooting tops from here.
28c here at 7pm. Dewpoint 19c.
Hoping there is another brewing west of Rocky.
The storm that hit NZ this morning is slowly moving south over new zealand. Nothing much happened. Met service sez we are still in for some thunderstorms later in the evening but i'm not sure.
Reed why do storms seem to lose their strength when they approach land? Is it from the heat rising from the land that does it?
Birch is fantastic, thanks for the hospitality! I actually woke up at 7pm and realized I had been sleeping face down on a pair of your socks. No flea bites yet, but we did find a dead hobo behind the greenhouse.
I am not the best a trigonometry but I estimate the storm is up to 70km tall
do LP supercells sometime produce tornadoes?
All super cells can produce tornadoes. LP and HP are less likely but still do
I hope something can brew in Canada and come down to Lake Superior again!! The Storm that blew through 2 days ago was the most impressive we've had in 2 or 3 years! Even though there wasn't any Tornado Warnings issued here in Duluth, I thought something was gonna start right before it reached the lake! When the gust front came over, the temp dropped from 86 to 72 in just a few minutes. a few minutes after (about 2:25cdt) when things got real dark, we noticed a spot that was rotating pretty hard for about 2 minutes then just stopped! I posted a few pics of this on the frappr and Myspace!! feel free to comment!
The pics r pretty crappy but... Not bad for a noob like me!! lol
Man, whats with our odd weather today...right now there's a bunch of clouds that look like mini thunderheads, and growing so fast you can actually SEE them expanding. Speaking of thunderstorms, there's currently a watch up to Yorkton..
How big is loonie sized hail?
Ooh.. Hopefully all this carries over tomorrow evening here and gives us something beyond just basic t-storms.
That sounds intense Brady! I thought you still had snow on the ground up in Duluth this time of year!! You guys always seem to get pounded with the northwesterly flow events.
That supercell closing in on Drayton Valley had an INCREDIBLE hook for a few scans. I wouldn't be surprised if that storm produced a tornado.
Keep us updated PB! Are you heading west to intercept it? It looks like it's having no problem at all with the cap...the meso must be intense
A Loonie (Canada's 1 Dollar coin which has a Loon duck on the face) is 26mm across or 1.04in ;P
Loonie sized is walnut, cherry, a little smaller than golfballs
Or slightly bigger than a quarter
Nicely put Joel L! lol Seemed ppl were struggling with that one...
Yeah, this is true! lol! We don't get good snow until March anymore!! all of that hits the UP! This lake does weird things I tell ya! I love it!! People whine and cry about how cold it is here for about 10 months, then they pi$$ n moan about the humidity for the other 2!
I took a photo this morning of the heavy rain that we had here in NZ. It was so heavy the flash on my camera reflected of the raindrops. Click on my name then visit my pics to see it if ya want. It's kinda cool. It was quite dark even though it was 10am.
Nice picture Jackie!
Do you have any snow around you this time of year? or is it confined mainly to the mountains.
Thanks Reed
Not really it's more south. However if we have an extreme cold front go through we can get snow on the top of the Waitakere Ranges. But mainly snow is kept to the mountains (volcanoes i should say) in the middle of the North Island and the long strip down the middle of the south island.
Heading to the snow in three weeks, can't wait!
County of Wetaskiwin near Alder Flats and Winfield
9:36 PM MDT Saturday 28 July 2007
Severe thunderstorm warning for
County of Wetaskiwin near Alder Flats and Winfield issued
At 9:25 PM an intense thunderstorm was located near Lodgepole. The thunderstorm is tracking to the east at 25 km/h. Twoonie sized hail and strong winds have been reported with this storm.
I wonder if its going to ride its way into edmonton.
Looks like a right mover.,
It'll head to somewhere between Leduc and Wetaskiwin.
More towards Leduc at the moment.
Note look at the arch on the south end of the storm.
It's taking in a lot of juice
Lots of new convection south of the storm.
Something may pop over pigeon lake.
Considering the surface water temp is 25C
Based on radar, the cell is likely becoming outflow dominant now, but still capable of producing large hail.
It looked incredible for several scans...easily could have produced. Is it still light up there?
Ahh, Tomorrow hopefully Edmonton will get some storms. I can't wait to chase next year!(if i do)
We have a chance of storms here tomorrow...likely non severe, but still...storms are storms! :P
Just came across this tonight and it makes for an interesting read.
Reed, is this the next "unexplored frontier"?
http://www.spc.noaa.gov/coolimg/del_rio/index.html
You guys could hang out in the Sierra Madres January-March, live in Norman March-June, head to Canada June-August, come back in time to catch hurricane season, then take December off to rest up.
Hey Andrew...we've been thinking about heading to Mexico for about 8 years now!! I've been to Del Rio several times chasing, but never had the opportunity to cross the border. We're planning a trip over there next spring though for sure. The road network is poor, and there are problems with crime near the border...but they get tornadoes all the time just east of the mountains. The supercells show up great on Del Rio radar.
Excellent, I'll be waiting for the video of the prickly pear sucking wedge. (Ouch I'll bet that could hurt a lot in the inflow wind!) Just get yourself one of those dune buggy things and you're good to go. Don't need roads.
On a more serious note, it would be cool if you guys could document some hoses down there where it seems no one ever even sees them.
hey reed i transferred my major to meteorology over at OU...i will only be a sophmore so it will set me back a year but it will be worth it. i know that you are a graduate student there and was wondering of good books to get me prepared for the hard stuff since im sure the intro course is going to be rather basic and am only taking 13 hrs so i will have free time to start getting ahead. and also what kind of GPS would you recommend for a laptop for next chase season. is there anytihng in particular or is anything good?
Hey Ez...congrats on the major change!
Please send me an email (reed@tornadovideos.net), and when I get back to my office on Aug 7 I'll email a list of books I'd recommend.
Over the last few years, we've used the Delormme Earthmate GPS, and it has worked really well...it's fairly easy to interface it with GRlevel3 to display your GPS position on that program as well. For mobile internet, we've been using Cingular's data card...and we've had some issues with bugs in the software as well as spotty data coverage (horrible in west KS). I've heard good things about Verizon and Sprint as well...Sprint has partnered with Nextel and their EVDO high speed mobile internet coverage has been expanding rapidly.
If you have any other questions don't hesitate to ask!
Andrew...we'd chase it on foot if we had to!
2007 was definitely the year to be chasing down there. I bet they had 30+ tornadoes in northeast Mexico this year based on the supercells we saw on radar...and the Del Rio area reported several tornadoes just on the other side of the border.
It seems that the tail end of El Nino events result in active tornado seasons down there with the abnormally strong sub-tropical jet.
hey gang...just got back . started out towards edson but that system dryed up...headed south to drayton valley...big show! lots of lighning...no funnels that i could see...it was quite dark...im gonna poor over my pics i took and see for close up.drayton valley,calmar,leduc all got the brunt...even though it slowed down...still a fair amount of precip.
How are the cells looking for around edmonton now? We have some nice lightning going on near leduc! No warnings issued yet though....what do you think we should see overnight?
p.s. : theres another one right behind it...moving to the ne now.
Hey Dale...if you have any pictures you would let me post on the blog please email them!
That storm was a monster...you're lucky your wind shield is still intact!
Hi Candy..It looks like Edmonton will receive some heavy rain, gusty winds, and small hail over the next hour or so. The tornado threat is basically zero...since these cells appear to be elevated and lacking supercellular structure. Definitely a great lightning show tonight.
From the Edmonton base I can see tons of lightening in the south end of the city. If I can figure out my camera quickly enough I might have a picture of two.
Hey Reed:
This is my first time posting here. I'm from Regina, SK, Canada, and was wondering if we are looking at any sort of severe weather setup for our area in the next few days (because we both know, you guys are better at predicting it than Environment Canada.....hell, they can't even tell us when it is raining let alone when it's going to!!) We've been looking at mid to high 30's the last week, with the humidity making it feel more like mid to high 40's (for those of you who don't know celcius, that's
95- 103F, feeling more like 113-120F). Apart from some damn good light shows, absolutely monstrous thunderheads, and a double shot of wind rain and hail last Saturday, we have seen NOTHING in the way of severe weather from this thing.
I was mainly wondering because our provincial fair (Buffalo Days) is starting this coming Wednesday, which also happens to be the only day I can go, and was wondering what we may be looking at that day. On top of that, thousands of people on an open midway+severe thunderstorm and possible tornadoes=BAD NEWS. I was out there once when we had a dirty one roll through, and it ended up shutting the midway down for a few hours. And with weather like this, you can't help but expect a huge storm once in a while (this is the first year in a while where Regina has been spared to this extent from the extreme weather in the surrounding areas). If you can tell me anything, that would be great.
And btw....I think that the footage you got of the pipestone tornado is very possibly the greatest footage of a tornado ever taken. Congrats!
I agree about the video, and all of your vid's!
I can't say anything about the Canadian weather authority... But I can say these guys here are second to none!!
I'm no weather expert, and I've only been watching this site for a few weeks now, but I can't believe what I've been able to pick up just reading others questions and comments! Just the other day a storm came through, nobody around here had a clue it was coming, yet TV.net kept me up to the minute! Thats quality in my book!!!
wow the lightning show was intense here in Edmonton. My 7 story apartment faces east, and there has been so many flashes, so many infact that I recorded a 1 minute clip and counted 14 flashes, and 3 of them were huge light up the sky with many bolts kind.
talk about nerve wracking, since I refuse to go on my balcony ever since there was a bolt of lightning ( really thick lightning) that struck the ground/house 50 feet away from me when I was storm watching once, so I don't go out there anymore haha.
ya my pics didnt turn out well reed...&*%$#&@!!! mostly too dark or just full of rain spots. as for the windshield...who says its intact lmao? a couple of minor cracks. ya that little thing was a bit ferocious and now its coming over my home town here . remind me to invest in real camera equipment lol.
Yeah i agree TV.Net is awesome!!!
Great up to date information about around the world weather.
reed...one more thing...remember i asked you about sunday/sunday night? im still thinking its gonna be nasty tomm.night . can ya post the data for tomm? i appreciate it thx bud.
here is the video I took that is a minute long to see how many flashes per minute there was. just click my name and it should go to youtube.
great video tarku. hopefully we get more tomm.
Awesome Vid tarku, thats what i was hoping would happen in NZ today...but didn't :(
I got a picutre of a bolt that hit close near me. I'll show you the photos in just a sec!Also got some video but the best ones went to In phone Because i used a cam phone to record it and it doesn't work when they're in phone for some reason, but i still got some video.
Ok Sent you pics and vid reed.
Hi Reed, Fabulous work. I just came across the site from youtube. I wish I was lucky enough to see one. I was close when I visited Indiana a couple of years ago but i was in the hairdressers so I didnt see anything - the best was some storm clouds.
Ill keep in touch. Cheers kars.
You are so lucky! I've already seen strong multicells and squall lines but I've never seen a supercell or a tornado :-( , that makes me sad. But sometime I'll get my chance (I hope).
But a question to you Reed:
I'm currently building up a website with informations about tornadoes and their structure etc. . I'm searching for a good picture of an multiple vortex tornado and I've seen a very good one in your Manitoba chase log. May I use it for my site if I put a link to your site on it? Please write me if it is no problem. Thanks
Yeah volker I fill your pain I've seen 80+mph microbirsts, and 1 tornado live on tv but it did'nt hit me!!!! 1 more thing what is your web site's name?
hi caleb. I haven't finished and uploaded it yet, but you can see the address by clicking on my name.
Wow what a storm last night...never seen that much lightning before in south edmonton
So does it look like maybe some good storms this fine sunday
Drat.
Only WRF model says any goodies south of Edmonton.
One puts storms in the Grande Prairie north area, two others, including the GEM put the goodies in the Athabasca-Cold lake-Lloyd area.
I hope the WRF is right :)
You guys are getting all the good stuff up there.
No problem Volker..Good luck building the site!
Evan: It looks like Tuesday could be a stormy day for you up in SK, as a trough and cold front approach the area from the west. The wind shear is forecast to be sufficient for severe storms and supercells on Tuesday, but the low-level shear probably won't be adequate for tornadoes.
The cold front passes through Tuesday night, and Wednesday should be clear and cooler, with highs in the 70s to around 80. If the models change between now and then, which they probably will at least a little, I'll let you know. Looks good on Wednesday right now though.
Dale: It definitely looks interesting later this afternoon/evening west of Edmonton..similar to yesterday but with more instability. I'd like to see more 850 to 700 mb flow for tornadoes, but the models probably don't do very well up there. The deep-layer shear and instability is definitely sufficient for supercellls. I'll add a post about it soon. Good luck chasing! I'd head west of Edmonton/Drayton Valley to the foothills and wait for a nice storm to fire.
Reed do you agree nothing good south of Edmonton?
Please say there's gonna be something :)
Them Eskies are getting all the goods
thx reed. will do! ill keep you updated on my chase today.
Hear from a friend that Atlanta, GA's getting some nasty weather. "'Naders and Green Sky" was his highly detailed report haha.
In the winter im guessing 2002 a small funnel cloud started forming over terra losa at around 95th and 176 th street some poeple were yellin out at it i saw it any one else?