What is Vorticity and why it is a factor when considering a forecast?

On Aug 24, 6:51*am, wrote:

*What is Vorticity and why it is a factor when considering a forecast?

It's the amount of cuclonic behaviour or for that matter
anticycloninc. Vortexes define the degree of positivity of the North
Atlantic for one thing. It is pretty negative at the moment with weak
KLows and Highs.

You will notice the 1016 Mb line at sea level is elliptical on
occasions when there is little or no vorticity.

My opinion of course is not worth as much as you paid for it.

On Aug 24, 6:40*pm, Weatherlawyer wrote:
On Aug 24, 6:51*am, wrote:



*What is Vorticity and why it is a factor when considering a forecast?

It's the amount of cuclonic behaviour or for that matter
anticycloninc. Vortexes define the degree of positivity of the North
Atlantic for one thing. It is pretty negative at the moment with weak
KLows and Highs.

You will notice the 1016 Mb line at sea level is elliptical on
occasions when there is little or no vorticity.

My opinion of course is not worth as much as you paid for it.

And I don't know what I am talking about.

When that 1016 mb at surface level is an elipse, be sure there are
tropical storms or tornadoes in the USA brewing. And the met men will
be looking at upper air develpments to see it first.

I think it can give nearly a week's warning. Not that I know how.

Well, if nothing else, you do have a sense of humor

On Sun, 24 Aug 2008 10:46:02 -0700 (PDT), Weatherlawyer
wrote:

On Aug 24, 6:40*pm, Weatherlawyer wrote:
On Aug 24, 6:51*am, wrote:



*What is Vorticity and why it is a factor when considering a forecast?

It's the amount of cuclonic behaviour or for that matter
anticycloninc. Vortexes define the degree of positivity of the North
Atlantic for one thing. It is pretty negative at the moment with weak
KLows and Highs.

You will notice the 1016 Mb line at sea level is elliptical on
occasions when there is little or no vorticity.

My opinion of course is not worth as much as you paid for it.

And I don't know what I am talking about.

When that 1016 mb at surface level is an elipse, be sure there are
tropical storms or tornadoes in the USA brewing. And the met men will
be looking at upper air develpments to see it first.

I think it can give nearly a week's warning. Not that I know how.

wrote in message
...
Well, if nothing else, you do have a sense of humor

On Sun, 24 Aug 2008 10:46:02 -0700 (PDT), Weatherlawyer
wrote:

On Aug 24, 6:40 pm, Weatherlawyer wrote:
On Aug 24, 6:51 am, wrote:



What is Vorticity and why it is a factor when considering a forecast?

It's the amount of cuclonic behaviour or for that matter
anticycloninc. Vortexes define the degree of positivity of the North
Atlantic for one thing. It is pretty negative at the moment with weak
KLows and Highs.

You will notice the 1016 Mb line at sea level is elliptical on
occasions when there is little or no vorticity.

My opinion of course is not worth as much as you paid for it.

And I don't know what I am talking about.

When that 1016 mb at surface level is an elipse, be sure there are
tropical storms or tornadoes in the USA brewing. And the met men will
be looking at upper air develpments to see it first.

I think it can give nearly a week's warning. Not that I know how.
By any chance, by "MB" do you mean Millibars?
Millibars is a way of measuring barometric preasure. It's in a way
easier to use, and more precise. Inches take up more room on a map, and can
get sloppy.
It's also used to measure isobar's, the lines on a weather map, of equal
pressure.
A center of either high, or low pressure indecates (H) High pressure
systems.
(L) Low pressure systems.
I can actually look at a map, with just the readings of pressure, and draw
out the
lines on my own. I would also know if I was looking at a Hurricane just from
the
extreme low pressure readings.

I would've gotten A's in weather science instead of just a D-
But I misspelled too many words, and rushed too many projects.

Thing is, some of that's out the window, do to global warming.
Depending on which thing it was I learned.
The great lake are getting warm, and use to maintain too cold a
temperature to swim in.. Even in the middle of the summer.
I searched, and found, some of the lakes surface temperatures
in-between 70 and 80 Degrees. Normal Tepms. should be below
60, even in summer.

Sorry, I got a little side-track....

Fievel.

On Thu, 28 Aug 2008 20:59:37 -0400, "Fievel Mousekewitz Sr \(Not A
CT'er\)" wrote:


By any chance, by "MB" do you mean Millibars?

Yes

Millibars is a way of measuring barometric preasure. It's in a way
easier to use, and more precise. Inches take up more room on a map, and can
get sloppy.
It's also used to measure isobar's, the lines on a weather map, of equal
pressure.

True. But also dont forget in the case of upper level charts such as
the 500mb chart, the mb level is used to mesure isohights in
decameters above 1000mb (approx sea level)

The lines on a 500mb chart are all 500mb. The diffrent number
associated with each line are the decameters above the 1000mb level.


I can actually look at a map, with just the readings of pressure, and draw
out the lines on my own. would also know if I was looking at a Hurricane just from
the extreme low pressure readings.

Well, there are other things to consider besides the extreme low
pressure to determine if a hurricane exist. For example, does the
system have a tropical origin? Do ground obs support the necessary
wind speed? Does the system have truly closed circulation from
surface through approx 700mb? give or take a little. Is there an
existing high at approx 250mb existing above the system? And is the
water the system over, warm enough to support a hurricane?

Granted, extra tropical storms do develop that have extreme winds and
hurricane pressures at the low center. But by definition is not a
true hurricane.