EXPERTS WANTED-FRONTS PROTECT HOW LONG?

[john186292]

We in new orleans seem to be protected by fronts..CAA i think.

Just how long will this protection keep coming? Oct 8 was the most welcome date , from the prof met 57 in houston. ...But after that ? Can you experts prog whether some pattern has set in that usually lasts awhile? Like maybe December LOL?

ALSO..pls tell us what the exact difference is, between these animals that tv mets use interchangable, but which are really different beasties...
and the usual distance between them as they come down?

JETSTREAM CURRENT

DIGGING TROF

PLAIN TROF

FRONT
Thank you, indispensable experts,
John New Orleans

[john186292]

I might add, for wednesday pm..breck just said 'NOT A CHANCE that the larry will come up to new orleans, because of the fronts."

[john186292]

i might add that now the locals say till oct tenth.

[wrkh99]

Why are you responding to your on thread ?


NO is not safe or out of the woods yet !

[john186292]

not responding, adding new info not available when orig posted. New info not warrant a new thread. Enough threads cluttering up already.
Bernard just said N orleans is safe and NOT A CHANCE IT WILL COME HERE.

[Aimless]

I would appreciate a simple explaination about the difference between a front and a trof. ...it seems a front can be a trof, but a trof is not necessarily a front....??

Thanks
(Please keep it simple..I'm learning

[ColdFront77]

not responding, adding new info not available when orig posted. New info not warrant a new thread. Enough threads cluttering up already.
Bernard just said N orleans is safe and NOT A CHANCE IT WILL COME HERE.

John, you can edit your original post and add your two additional comments. That way you wouldn't have three posts in a row.

I would appreciate a simple explaination about the difference between a front and a trof. ...it seems a front can be a trof, but a trof is not necessarily a front....??

Thanks
(Please keep it simple..I'm learning

A cold front is a boundary between cool, dry air and warm, humid air; while a trough is more associated with the jet stream. A trough brings down the cooler, drier air from the northwest and/or north... opposed to a ridge which brings up warm, humid air from the southwest and/or south.

[wxman57]

I would appreciate a simple explaination about the difference between a front and a trof. ...it seems a front can be a trof, but a trof is not necessarily a front....??

Thanks
(Please keep it simple..I'm learning

Ok, I can keep it simple. A trof (trough) is simply an elongated area of low pressure. It's like you took a low pressure area and just stretched it out until it is much longer than it is wide. This elongated area of low pressure might extend south from a low center/storm center in the midwest south to the Gulf coast.

A front is a transition zone between two different airmasses, perhaps warm tropical air off the Gulf of Mexico and cold air from Canada. The frontal zone is the boundary between these two different airmasses.

A trof is NOT a front, but all cold fronts reside along a trof, or an elongated area of lower pressure. So it would be more correct to say that all fronts reside in trofs, but not all trofs represent transition zones between different airmasses (i.e., fronts).

[ColdFront77]

Thank you wxman57.

Hopefully I didn't explain it incorrectly.

[wxman57]

Here's a good web site that explains fronts, and I'm sure you can find out more about trofs there too there:

http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/af/frnts/cfrnt/def.rxml