While spotting 09/21/2009

[Ric Burney]

A line of storms ahead of an approaching cold front blew through Dallas,TX last night. While spotting near downtown and 6 floors up I took a little video with a GE A735 I carry with me. As the storms approached I started seeing greenish flashes on the ground in one particular area.
As we all know what types of events can cause such flashes I paid close attention to that area. No funnel or tornado seen but the winds were reported in the 40 and 50 mph range along the line as the storms moved through our area.
As the leading edge of this line crossed my position a few minutes after this video clip I measured winds at 41 mph.

Enjoy.

http://www.youtube.com/watch?v=reiBN1Kqou0

 

[Joshua Nall]

lightning

The squall line pooped out about the time it made it to me. I went out about 12:30 for some lightning. I knew it would be quick with the line moving through, but I ended up coming away with my closest bolt yet. this was at about 18 mm with my Sigma 10-20mm. should have been wider and would have gotten the top part of the bolt, but really wasn't expecting one so close at the time. looks to have hit just inside the tree line and I'm guessing less than a quarter, but that's just a guess.

 

[W. Grant Dade]

A line of storms ahead of an approaching cold front blew through Dallas,TX last night. While spotting near downtown and 6 floors up I took a little video with a GE A735 I carry with me. As the storms approached I started seeing greenish flashes on the ground in one particular area.
As we all know what types of events can cause such flashes I paid close attention to that area. No funnel or tornado seen but the winds were reported in the 40 and 50 mph range along the line as the storms moved through our area.
As the leading edge of this line crossed my position a few minutes after this video clip I measured winds at 41 mph.

Enjoy.

http://www.youtube.com/watch?v=reiBN1Kqou0

Great video. The velocity data on that storm as it moved along the Tarrant Johnson county line was scary. Showing 95+knts inbound! Here is the damage report from Forth Worth:
http://forecast.weather.gov/product...WD&product=PNS&format=CI&version=3&glossary=0

 

[Karla Dorman]

It was a doozy: the mammatus before the storm actually arrived was incredible, and winds were reported to be around 74 mph in town. The lightning was strobe: according to FOX4 wx, 500/600 recorded strikes every five minutes!!!

 

[Stephen Levine]

Thank you, Ric for sharing this video of power flashes. I observed the squall line on the Garland/Rockwall border right along Lake Ray Hubbard, I-30 and Bass Pro.
As the storm moved in, I observed constant power flashes about 5 miles to my N and NW. for about three minutes. Winds buffetted my parked widely and the power flashes came in many colors. It reminded me of when I watched Hurricanes Ike and Rita.
I would estimate winds gusting to 65 MPH. There was no damage that I know of in my immediate neighborhood, though I did see some power lines being fixed the next evening.