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Message
re: Severe Weather - Today - LA, MS, AL, NW FL
Posted on 4/17/19 at 1:52 pm to Sao
Posted on 4/17/19 at 1:52 pm to Sao
quote:
Almost looks like the rocket stove effect would be most violent over LA if we imagine the extrapolation in hours. If DFw looks like that now, then LA should look like blah blah later. Is that fair?
please tell me you're wish casting dude
1
Posted on 4/17/19 at 1:54 pm to Mr Perfect
You trolls amuse me. I wish nothing. I wish it would dissolve. You've got the wrong guy.
Posted on 4/17/19 at 1:55 pm to Mr Perfect
quote:
we need a school closure thread so all parents can gather over there and whine
But, the teachers wouldn't be able to rub it everyone's faces that they'll be off tomorrow while everyone else still has to go to work
Posted on 4/17/19 at 1:56 pm to Sao
not trying to troll dude. I'm just learning and asking questions if your theory is reliable
This post was edited on 4/17/19 at 1:57 pm
Posted on 4/17/19 at 1:56 pm to Sao
Nah still here in the lab it’s been drizzling and cloudy all day
Posted on 4/17/19 at 2:01 pm to Sao
quote:
Almost looks like the rocket stove effect would be most violent over LA if we imagine the extrapolation in hours. If DFw looks like that now, then LA should look like blah blah later. Is that fair?
Not exactly.
The sun coming out and warming the surface is driving up the potential with cold air aloft filtering in. Once nightfall happens, those numbers start to drop. The colder air aloft will keep progressing but the difference isn't as big from the ground up without a good dose of sunshine.
Colder air aloft will be moving into Louisiana tomorrow, but also getting a big pull of moisture from a developing low cutting out of the south toward SW MS.
Posted on 4/17/19 at 2:02 pm to Duke
thank goodness Duke. ty sir
Posted on 4/17/19 at 2:08 pm to Duke
quote:
The big hailer cells may or may not pop over the Dallas area. NWS there notes they've got it a 60% chance for the area.
Kind of off topic and a real novice question.
Because of the large area of concrete, asphalt, roads, parking lots, roofs, glass High-rises in major metropolitan areas coupled with shrinking "green spaces" (not crazy about that term as it's politically charged), are there indications that these might be, in effect, large heat domes, hotter than surrounding lands, which act almost as hills or mountains giving increased lifting of the atmosphere above them? And, if so, is this factored into the forecasts respecting DFW that you're discussing?
I ask because I watched the NWS radar in Brandon, MS show what looked like a donut shaped (anomaly?) that looked all the world like a gust front in a large super cell. A late cold front passed through in I think late June a few years back and Jackson itself was deluged with an intense brief thunderstorm which blew up rapidly right over the city and blew out winds, some fairly damaging, 360 degrees round the compass simultaneously coinciding with the donut like gust front. I did a capture of the radar imagery but I think lost it when my old PC got lightning bit.
Don't take up time from this thread but if you get a chance throw a link out my way so I can do some reading.
Posted on 4/17/19 at 2:10 pm to Mr. Misanthrope
Urban heat islands are definitely a thing. Not sure if they've been proven to enhance thunderstorm activity or severity though. 
Posted on 4/17/19 at 2:11 pm to 50_Tiger
The greatest office I've ever had was close to you. The Caremark/CVS building there at JC across from the Keg. I was on 11 of 12 facing D/FW. Watching the planes land and the storms come in was glorious.
Posted on 4/17/19 at 2:11 pm to Mr. Misanthrope
quote:
these might be, in effect, large heat domes, hotter than surrounding lands, which act almost as hills or mountains giving increased lifting of the atmosphere above them?
There was some research done around Atlanta that is around what you're talking about:
The Atlanta Thunderstorm Effect
Posted on 4/17/19 at 2:12 pm to Sao
quote:
he greatest office I've ever had was close to you. The Caremark/CVS building there at JC across from the Keg. I was on 11 of 12 facing D/FW. Watching the planes land and the storms come in was glorious
Pretty sure I can see that building from my window!
Were moving to the other building now in August. On 635 near 7-Eleven HQ.
Posted on 4/17/19 at 2:15 pm to OysterPoBoy
quote:
Here they go with the school cancellations and early dismissals. I’m convinced teachers are behind a lot of this hype. The scare tactics never seem to be as strong on the weekends.
I can already feel the barometric pressure dropping like a rock!
Posted on 4/17/19 at 2:15 pm to LSUJuice
I'll say this. Some of the official daily highs in the summer come from a place like DFW airport. So, let's rhink about that. I know - and so does every other Dallas guy - that's BS. The concrete over the interior Metroplex is higher. Miserable. Way too much GD parking lots.
Posted on 4/17/19 at 2:16 pm to Sao
Steve Caparotta, Ph.D.
?
Verified account
@SteveWAFB
1m1 minute ago
More
LIVE update on Thursday's severe weather update coming up on Facebook around 2:45.
?
Verified account
@SteveWAFB
1m1 minute ago
More
LIVE update on Thursday's severe weather update coming up on Facebook around 2:45.
Posted on 4/17/19 at 2:17 pm to 50_Tiger
I know you can
It's the only silver 12 story on that hill.
Posted on 4/17/19 at 2:19 pm to Sao
quote:
I know you can
It's the only silver 12 story on that hill.
They are finishing up some other big arse building across from the Convention Center.
Edit: Everyone has mentioned sun breaking through, but I havent seen a ray yet.
This post was edited on 4/17/19 at 2:20 pm
Posted on 4/17/19 at 2:21 pm to Mr. Misanthrope
quote:
Because of the large area of concrete, asphalt, roads, parking lots, roofs, glass High-rises in major metropolitan areas coupled with shrinking "green spaces" (not crazy about that term as it's politically charged), are there indications that these might be, in effect, large heat domes, hotter than surrounding lands, which act almost as hills or mountains giving increased lifting of the atmosphere above them?
The urban heat island is definitely a thing.
quote:
And, if so, is this factored into the forecasts respecting DFW that you're discussing?
To an extent but it's not a big difference in our larger picture today. You can certainly see it locally in the summer with afternoon storms.
quote:
I ask because I watched the NWS radar in Brandon, MS show what looked like a donut shaped (anomaly?) that looked all the world like a gust front in a large super cell. A late cold front passed through in I think late June a few years back and Jackson itself was deluged with an intense brief thunderstorm which blew up rapidly right over the city and blew out winds, some fairly damaging, 360 degrees round the compass simultaneously coinciding with the donut like gust front
I'd need to see more about what was happening that day but it could have been an enhancement I suppose.
Interesting observation though.
Posted on 4/17/19 at 2:23 pm to MorbidTheClown
quote:
Steve Caparotta, Ph.D.
?
Verified account
@SteveWAFB
1m1 minute ago
More
LIVE update on Thursday's severe weather update coming up on Facebook around 2:45.
I'll be watching. Steve and Jay are the two best meteorologists in all of Louisiana.
Posted on 4/17/19 at 2:24 pm to 50_Tiger
Do you hit that Toyota Music scene? I swear, that's a great place to concert. Now, you'll go broke on drinks but damn what a place. Love it.
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