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Message
re: Major tornado outbreak expected tomorrow
Posted on 3/1/12 at 9:03 am to Ball Gravy
Posted on 3/1/12 at 9:03 am to Ball Gravy
Stay safe SEC peeps in the zone of bad weather. Keep on a tv/radio for info in your area. Don't want another Tuscaloosa or Joplin, MO tomorrow
0
Posted on 3/1/12 at 9:06 am to berndawg17
quote:
berndawg17
you, 1991UW, littleman, and fulmersgonanfixit are just fricking awful
Posted on 3/1/12 at 9:07 am to Ball Gravy
quote:
Cape values and helicity
Posted on 3/1/12 at 9:08 am to Damn Good Dawg
quote:
you, 1991UW, littleman, and fulmersgonanfixit are just fricking awful
you forgot beer bryant
Posted on 3/1/12 at 9:09 am to NYCAuburn
my bad 
idk though, i see those guys posting at the speed of tard, beery bryant usually sticks to making fun of AU and i never hop in yalls pissing match threads so i still haven't seen him flame. but i believe yall so i say we have a mass exodus
idk though, i see those guys posting at the speed of tard, beery bryant usually sticks to making fun of AU and i never hop in yalls pissing match threads so i still haven't seen him flame. but i believe yall so i say we have a mass exodus
Posted on 3/1/12 at 9:10 am to Damn Good Dawg
You forgot DGD
Posted on 3/1/12 at 9:11 am to roadGator
quote:
You forgot DGD
#socrow
Posted on 3/1/12 at 9:12 am to NYCAuburn
WTF is #socrow?
Posted on 3/1/12 at 9:12 am to NYCAuburn
quote:quote:
You forgot DGD
#socrow
you lose me you lose about 45% of the UGA posts here mane
ETA
quote:
Road
check out the fake isaiah crowell twitter
This post was edited on 3/1/12 at 9:13 am
Posted on 3/1/12 at 9:16 am to Damn Good Dawg
road gator....
In meteorology, convective available potential energy (CAPE),[1] sometimes, simply, available potential energy (APE), is the amount of energy a parcel of air would have if lifted a certain distance vertically through the atmosphere. CAPE is effectively the positive buoyancy of an air parcel and is an indicator of atmospheric instability, which makes it valuable in predicting severe weather. It is a form of fluid instability found in thermally stratified atmospheres in which a colder fluid overlies a warmer one. As explained below, when an air mass is unstable, the element of the air mass that is displaced upwards is accelerated by the pressure differential between the displaced air and the ambient air at the (higher) altitude to which it was displaced. This usually creates vertically developed clouds from convection, due to the rising motion, which can eventually lead to thunderstorms. It could also be created in other phenomenon, such as a cold front. Even if the air is cooler on the surface, there is still warmer air in the mid-levels, that can rise into the upper-levels. However, if there is not enough water vapor present, there is no ability for condensation, thus storms, clouds, and rain will not form.
Helicity:
This is a derived parameter which quantifies the tendency for airflow in the lower levels of the troposphere to 'corkscrew' and thus encourage the formation of storms with strong mesoscale circulations, possibly leading to tornadic activity.
Helicity is related to:
(a): speed shear from surface to 3 km (about 700 hPa) - how much the wind speed changes over this altitude band.
(b): directional change of the wind over the same altitude band.
(c): the strength of the low-level wind contributing to the speed / directional shear (as above).
In meteorology, convective available potential energy (CAPE),[1] sometimes, simply, available potential energy (APE), is the amount of energy a parcel of air would have if lifted a certain distance vertically through the atmosphere. CAPE is effectively the positive buoyancy of an air parcel and is an indicator of atmospheric instability, which makes it valuable in predicting severe weather. It is a form of fluid instability found in thermally stratified atmospheres in which a colder fluid overlies a warmer one. As explained below, when an air mass is unstable, the element of the air mass that is displaced upwards is accelerated by the pressure differential between the displaced air and the ambient air at the (higher) altitude to which it was displaced. This usually creates vertically developed clouds from convection, due to the rising motion, which can eventually lead to thunderstorms. It could also be created in other phenomenon, such as a cold front. Even if the air is cooler on the surface, there is still warmer air in the mid-levels, that can rise into the upper-levels. However, if there is not enough water vapor present, there is no ability for condensation, thus storms, clouds, and rain will not form.
Helicity:
This is a derived parameter which quantifies the tendency for airflow in the lower levels of the troposphere to 'corkscrew' and thus encourage the formation of storms with strong mesoscale circulations, possibly leading to tornadic activity.
Helicity is related to:
(a): speed shear from surface to 3 km (about 700 hPa) - how much the wind speed changes over this altitude band.
(b): directional change of the wind over the same altitude band.
(c): the strength of the low-level wind contributing to the speed / directional shear (as above).
Posted on 3/1/12 at 9:18 am to Damn Good Dawg
quote:
you, 1991UW, littleman, and fulmersgonanfixit are just fricking awful
Seconded
Thirded
Fourthed
Posted on 3/1/12 at 9:20 am to Slippery Slope
quote:
Ball Gravy
you wikipedia-in' sumbitch
quote:
ss
what is crazy is not how bad each one is but how they are all reaching their plateaus at the same time
it's 2012 on TD too
Posted on 3/1/12 at 9:21 am to Slippery Slope
quote:
Ball Gravy
And I thought i was a weather geek. Well played. sir. I just got learned somethin...
Posted on 3/1/12 at 9:22 am to RollTide1987
Al warned us....
Posted on 3/1/12 at 9:26 am to Damn Good Dawg
No point in typing it all when I can just translate from wiki...
I am apart of a privately employed pro met forum in Houston. Storm2k.org and forums.khou.com... these storms are being talked about...
I will say this, without one or the other (helicity and Cape), you just have funderstorms which bring needed rain, but if you have both and in high values you have dangerous tornadic conditions. On top of that, there's been very little capping this year along the gulf, which produces some very nice dynamics for severe weather.
I am apart of a privately employed pro met forum in Houston. Storm2k.org and forums.khou.com... these storms are being talked about...
I will say this, without one or the other (helicity and Cape), you just have funderstorms which bring needed rain, but if you have both and in high values you have dangerous tornadic conditions. On top of that, there's been very little capping this year along the gulf, which produces some very nice dynamics for severe weather.
This post was edited on 3/1/12 at 9:27 am
Posted on 3/1/12 at 9:28 am to Ball Gravy
i meant no offense by it fwiw 
but i do enjoy meteorology and having it explained so keep it going dude
but i do enjoy meteorology and having it explained so keep it going dude
Posted on 3/1/12 at 9:43 am to Damn Good Dawg
Looking at weather.com, I don't see any precipitation anywhere near what this map shows. Are these supposed to just be pop-up storms?
Posted on 3/1/12 at 9:49 am to Swoopin
quote:
It really does seem that the tornado activity has spiked in areas other than the usual Oklahoma, Kansas, Nebraska etc
Not really. By far one of the biggest weather myths is the whole idea of the Great Plains states and those states only as being THE "tornado alley". While it is true that the traditional tornado alley has a large number of tornadoes and does produce many strong tornadoes it isn't the exclusive area for tornadoes. There is also a "Dixie alley" which basically covers Arkansas, the extreme northern part of Louisiana, north half of Mississippi, northern half of Alabama, western 2/3rds of Tennessee, NW Georgia, and much of Kentucky. Dixie Alley has slightly fewer tornadoes than the Plains states but is actually a much more dangerous area for tornado deaths due to higher population density, poorer visibility due to trees, hills, and topography, and far more night time tornadoes.
As for the graphic posted by the OP, that's the convective outlook which basically outlines the severe weather threat. The 45% hatched area is the most serious but anytime you're in a 30% or higher area you are in for some potentially dangerous weather. In other words, not only the pink but also the red areas need to be on high alert tomorrow. This isn't April 27th, but it is a very serious threat and it only takes one strong tornado going through a heavily populated area for it to be a big deal.
Posted on 3/1/12 at 9:53 am to RollTide1987
Good God. The south needs a break (especially bama) from Tornado's. God speed to everyone - y'all stay safe!
Posted on 3/1/12 at 9:56 am to DoubleDown
Agreed. Its March 1 and I'm already sick of severe weather.
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