Alberta weather

lightningmanAB
Weather Nut
Posts: 293

Re: Alberta weather

Postby lightningmanAB » Tue Oct 18, 2016 10:47 am

lightningmanAB wrote:On July 17, 2016 (Sunday afternoon) there was a thunderstorm not too far from where I was in south Calgary. We were not expecting supercell thunderstorms that day but we were expecting pulse thunderstorms. I went just south of the city into the countryside to watch the storm. To my surprise there were two funnels fairly close together (perhaps they were about 1 mile apart). One was short and somewhat stubby while the other was long and skinny. I could not tell 100% for sure at the time if the long skinny one was touching the ground but I got on the phone and called ECCC to report it. I spoke to them on the phone and let them know what I saw. They had already received calls and tweets about this as it was between two populated areas (south Calgary and Okotoks) and lots of eyes have seen it. As soon as I got off the phone with them I set up my camera on my tripod to start snapping pics but then both funnels had dissipated just before I got my first good shot. There were pics on social media of it so I will upload one of what it looked like. I took a short timelapse of the storm (without the funnels) and while doing that a fire truck passed me. I decided to check to see if the funnel cloud was actually a tornado so I went to the area where it looked like it was located.

Here are some pics...
I came across a house with minor roof damage: IMG_20160717_145205.jpg

There was another house in the same area that the fire department was at and there was a trailer that looked like it was blown out of place: IMG_20160717_151831.jpg

Came across a fence that was damage: IMG_20160717_153307.jpg

Piece of wood stuck against a fence: IMG_20160717_153259.jpg

Fire department put a tarp over the hole in the roof: IMG_20160717_152959.jpg


This tree was supported by guy wires but the top of the tree had been torqued off:
IMG_20160717_153342.jpg
IMG_20160717_153342.jpg (280.95 KiB) Viewed 5623 times


I was fascinated by the ground swirl patterns in the grass created by the tornado:
IMG_20160717_153821.jpg
IMG_20160717_153821.jpg (264.67 KiB) Viewed 5623 times

IMG_20160717_153807.jpg
IMG_20160717_153807.jpg (288.19 KiB) Viewed 5623 times

IMG_20160717_153640.jpg
IMG_20160717_153640.jpg (285.09 KiB) Viewed 5623 times

IMG_20160717_153353.jpg
IMG_20160717_153353.jpg (224.74 KiB) Viewed 5623 times

lightningmanAB
Weather Nut
Posts: 293

Re: Alberta weather

Postby lightningmanAB » Tue Oct 18, 2016 10:48 am

lightningmanAB wrote:
lightningmanAB wrote:On July 17, 2016 (Sunday afternoon) there was a thunderstorm not too far from where I was in south Calgary. We were not expecting supercell thunderstorms that day but we were expecting pulse thunderstorms. I went just south of the city into the countryside to watch the storm. To my surprise there were two funnels fairly close together (perhaps they were about 1 mile apart). One was short and somewhat stubby while the other was long and skinny. I could not tell 100% for sure at the time if the long skinny one was touching the ground but I got on the phone and called ECCC to report it. I spoke to them on the phone and let them know what I saw. They had already received calls and tweets about this as it was between two populated areas (south Calgary and Okotoks) and lots of eyes have seen it. As soon as I got off the phone with them I set up my camera on my tripod to start snapping pics but then both funnels had dissipated just before I got my first good shot. There were pics on social media of it so I will upload one of what it looked like. I took a short timelapse of the storm (without the funnels) and while doing that a fire truck passed me. I decided to check to see if the funnel cloud was actually a tornado so I went to the area where it looked like it was located.

Here are some pics...
I came across a house with minor roof damage: IMG_20160717_145205.jpg

There was another house in the same area that the fire department was at and there was a trailer that looked like it was blown out of place: IMG_20160717_151831.jpg

Came across a fence that was damage: IMG_20160717_153307.jpg

Piece of wood stuck against a fence: IMG_20160717_153259.jpg

Fire department put a tarp over the hole in the roof: IMG_20160717_152959.jpg


This tree was supported by guy wires but the top of the tree had been torqued off: IMG_20160717_153342.jpg

I was fascinated by the ground swirl patterns in the grass created by the tornado:
IMG_20160717_153821.jpg
IMG_20160717_153807.jpg
IMG_20160717_153640.jpg
IMG_20160717_153353.jpg


More pics:
IMG_20160717_154045.jpg
IMG_20160717_154045.jpg (257.75 KiB) Viewed 5622 times

IMG_20160717_154041.jpg
IMG_20160717_154041.jpg (293.84 KiB) Viewed 5622 times

IMG_20160717_154010.jpg
IMG_20160717_154010.jpg (239.03 KiB) Viewed 5622 times

IMG_20160717_153851.jpg
IMG_20160717_153851.jpg (280.66 KiB) Viewed 5622 times

IMG_20160717_153838.jpg
IMG_20160717_153838.jpg (279.6 KiB) Viewed 5622 times

lightningmanAB
Weather Nut
Posts: 293

Re: Alberta weather

Postby lightningmanAB » Tue Oct 18, 2016 10:51 am

lightningmanAB wrote:
lightningmanAB wrote:
lightningmanAB wrote:On July 17, 2016 (Sunday afternoon) there was a thunderstorm not too far from where I was in south Calgary. We were not expecting supercell thunderstorms that day but we were expecting pulse thunderstorms. I went just south of the city into the countryside to watch the storm. To my surprise there were two funnels fairly close together (perhaps they were about 1 mile apart). One was short and somewhat stubby while the other was long and skinny. I could not tell 100% for sure at the time if the long skinny one was touching the ground but I got on the phone and called ECCC to report it. I spoke to them on the phone and let them know what I saw. They had already received calls and tweets about this as it was between two populated areas (south Calgary and Okotoks) and lots of eyes have seen it. As soon as I got off the phone with them I set up my camera on my tripod to start snapping pics but then both funnels had dissipated just before I got my first good shot. There were pics on social media of it so I will upload one of what it looked like. I took a short timelapse of the storm (without the funnels) and while doing that a fire truck passed me. I decided to check to see if the funnel cloud was actually a tornado so I went to the area where it looked like it was located.

Here are some pics...
I came across a house with minor roof damage: IMG_20160717_145205.jpg

There was another house in the same area that the fire department was at and there was a trailer that looked like it was blown out of place: IMG_20160717_151831.jpg

Came across a fence that was damage: IMG_20160717_153307.jpg

Piece of wood stuck against a fence: IMG_20160717_153259.jpg

Fire department put a tarp over the hole in the roof: IMG_20160717_152959.jpg


This tree was supported by guy wires but the top of the tree had been torqued off: IMG_20160717_153342.jpg

I was fascinated by the ground swirl patterns in the grass created by the tornado:
IMG_20160717_153821.jpg
IMG_20160717_153807.jpg
IMG_20160717_153640.jpg
IMG_20160717_153353.jpg


More pics:
IMG_20160717_154045.jpg
IMG_20160717_154041.jpg
IMG_20160717_154010.jpg
IMG_20160717_153851.jpg
IMG_20160717_153838.jpg


...and more pics (the large white container is a rain water barrel which was empty - approx 6 feet tall - blew a hundred metres or so from the house):
IMG_20160717_154104.jpg
IMG_20160717_154104.jpg (278.12 KiB) Viewed 5621 times

IMG_20160717_155058.jpg
IMG_20160717_155058.jpg (244.65 KiB) Viewed 5621 times

IMG_20160717_154652.jpg
IMG_20160717_154652.jpg (232.55 KiB) Viewed 5621 times

I believe this "Christmas tree" was the top of the tree that was torqued off from the guy wires:
IMG_20160717_154349.jpg
IMG_20160717_154349.jpg (266.5 KiB) Viewed 5621 times

IMG_20160717_154204.jpg
IMG_20160717_154204.jpg (186.23 KiB) Viewed 5621 times

lightningmanAB
Weather Nut
Posts: 293

Re: Alberta weather

Postby lightningmanAB » Tue Oct 18, 2016 11:00 am

lightningmanAB wrote:
lightningmanAB wrote:
lightningmanAB wrote:
This tree was supported by guy wires but the top of the tree had been torqued off: IMG_20160717_153342.jpg

I was fascinated by the ground swirl patterns in the grass created by the tornado:
IMG_20160717_153821.jpg
IMG_20160717_153807.jpg
IMG_20160717_153640.jpg
IMG_20160717_153353.jpg


More pics:
IMG_20160717_154045.jpg
IMG_20160717_154041.jpg
IMG_20160717_154010.jpg
IMG_20160717_153851.jpg
IMG_20160717_153838.jpg


...and more pics (the large white container is a rain water barrel which was empty - approx 6 feet tall - blew a hundred metres or so from the house):
IMG_20160717_154104.jpg
IMG_20160717_155058.jpg
IMG_20160717_154652.jpg
I believe this "Christmas tree" was the top of the tree that was torqued off from the guy wires:
IMG_20160717_154349.jpg
IMG_20160717_154204.jpg


Here is a news article on the landspout tornado + funnel cloud: http://globalnews.ca/news/2831770/tornado-touched-down-near-okotoks-on-sunday-environment-canada/?iframe=true&theme_preview=true

ECCC rated it as EF0.

Here is a good picture of the landspout tornado and funnel cloud. This is not my picture and I was on the opposite side. Picture taken by @katie7595 on Twitter:
Cnl-WndVMAAhKUe.jpg_small.jpg
Cnl-WndVMAAhKUe.jpg_small.jpg (42.59 KiB) Viewed 5618 times

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Abby_wx
Charter Member
Posts: 2528
Location: Abbotsford, BC
Contact:

Re: Alberta weather

Postby Abby_wx » Tue Oct 18, 2016 12:12 pm

Great pictures. Very interesting.
Near Hwy 1 McCallum exit; elevation 55 m (180 ft).

https://www.wunderground.com/personal-w ... =IBCABBOT1

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rhondle
Site Admin
Posts: 158
Former Username: Rhondle
Location: Salmon Arm

Re: Alberta weather

Postby rhondle » Tue Oct 18, 2016 12:20 pm

Awesome pictures!

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Missionbcwx
Charter Member
Posts: 2393
Former Username: UpperCedarWayMission
Location: Mission, B.C. Elevation: 440 Ft.

Re: Alberta weather

Postby Missionbcwx » Sat Oct 22, 2016 12:49 pm

Wowzer's!
District of Mission, B.C. (on the fraser)

User avatar
Hound
Charter Member
Posts: 1548
Location: N.E. Surrey, BC

Re: Alberta weather

Postby Hound » Mon Oct 24, 2016 4:53 pm

Awesome!
Fraser Heights, Surrey. (Elevation: 85 M. 278 Ft.)

lightningmanAB
Weather Nut
Posts: 293

Re: Alberta weather

Postby lightningmanAB » Mon Apr 17, 2017 8:43 pm

So I am hoping that tomorrow, Tuesday, April 18, 2017 will be my first storm chase in Alberta for the 2017 season.

ECCC puts out a wonderful forecast discussion each day for the Prairies (updated in the morning and early afternoon each day).
From their report:
"TUESDAY A SHORTWAVE MOVES THROUGH THE SOUTH WITH
A CONVERGENCE AREA CURRENTLY PROGGED THROUGH CLARESHOLM, LETHBRIDGE
AND CYPRESS HILLS. LIFTING WITH 14 AND 2 GIVES CAPES NEAR 600 J/KG. "
http://kamala.cod.edu/Canada/latest.focn45.CWWG.html

I think the 14 and 2 is likely referring to the surface temp and dewpoint. I am hoping the area of convergence will be closer to Calgary. If it was all the way down in Claresholm and Lethbridge it would be too far of a drive. Without going into the details, based on what I see on the HRDPS and NAM3KM models I expect to see a little storm somewhere east of Calgary.

NAM3KM shows pockets of 500-600 CAPE on Tuesday late afternoon / early eve in the area which is enough to get my interest and hopes up.

lightningmanAB
Weather Nut
Posts: 293

Re: Alberta weather

Postby lightningmanAB » Tue Apr 18, 2017 12:19 pm

lightningmanAB wrote:So I am hoping that tomorrow, Tuesday, April 18, 2017 will be my first storm chase in Alberta for the 2017 season.

ECCC puts out a wonderful forecast discussion each day for the Prairies (updated in the morning and early afternoon each day).
From their report:
"TUESDAY A SHORTWAVE MOVES THROUGH THE SOUTH WITH
A CONVERGENCE AREA CURRENTLY PROGGED THROUGH CLARESHOLM, LETHBRIDGE
AND CYPRESS HILLS. LIFTING WITH 14 AND 2 GIVES CAPES NEAR 600 J/KG. "
http://kamala.cod.edu/Canada/latest.focn45.CWWG.html

I think the 14 and 2 is likely referring to the surface temp and dewpoint. I am hoping the area of convergence will be closer to Calgary. If it was all the way down in Claresholm and Lethbridge it would be too far of a drive. Without going into the details, based on what I see on the HRDPS and NAM3KM models I expect to see a little storm somewhere east of Calgary.

NAM3KM shows pockets of 500-600 CAPE on Tuesday late afternoon / early eve in the area which is enough to get my interest and hopes up.


EC's update this morning on the FOCN:
IN THE AFTERNOON FROM THE FOOTHILLS
NEAR NORDEGG INTO THE LETHBRIDGE AND MEDICINE HAT REGIONS THERE IS A
RISK OF ISOLATED THUNDERSTORMS AS SBCAPES ARE NEAR 500 J/KG WITH
30-40 KNOTS OF SHEAR OVER 0-6 KM, ALTHOUGH MOISTURE IS SOMEWHAT
LIMITED NEAR THE SURFACE.


EC's update this afternoon on the FOCN:
IN THE
AFTERNOON ALONG A CONVERGENCE TROUGH FROM THE FOOTHILLS
NEAR CALGARY INTO THE LETHBRIDGE AND MEDICINE HAT REGIONS THERE IS A
RISK OF ISOLATED THUNDERSTORMS AS SBCAPES ARE IN THE 500-600 J/KG
RANGE WITH 30-40 KNOTS OF 0-6 KM SHEAR. SURFACE DEWPOINTS HAVE
ALSO RISEN INTO THE LOW SINGLE DIGITS THIS MORNING OVER SOUTHEASTERN
ALBERTA. DEPTH OF MOISTURE IS QUESTIONABLE BUT GIVEN ALL THE
INGREDIENTS ABOVE SHOULD A STORM BE ABLE TO ACCESS THE AIRMASS TO
THE NORTHEAST OF THE CONVERGENCE TROUGH A MARGINALLY SEVERE STORM
ISN'T OUT OF THE QUESTION.


I drew a sounding and hodograph from RDPS model data for 3pm Calgary time to give me an idea of what I might expect:
4-18-17hodo.jpg
4-18-17hodo.jpg (186.68 KiB) Viewed 443 times


Based on the Skew T Log P prognosis sounding for 3pm today there is enough CAPE for some thunderstorms.
Attachments
4-18-17sounding.jpg
4-18-17sounding.jpg (212.3 KiB) Viewed 443 times


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