ALERT: Hurricane Isidore forecasted to have at least 150 MPH winds within 72 hours

[rwfromkansas]

Can you explain more where this concentric eyewall is? I have heard the term the past couple days, but never had a clue what the heck people were talking about...:)

[Nuke'm Glowing]

We won't. But it's the rest of the Atlantic that's getting churned up that has us concerned...not to mention the forecasters are still clueless about the final destination of this storm.

[dennis1x]

here is another good tropical link...lots of good stuff on their courtesy of Kauai,HI navy base (Kauai..by far the greatest Hawaiin Island).

http://www.nrlmry.navy.mil/tc-bin/tc_home

[eastforker]

My 2 cents worth Sam,A snowstorm os nothing like a tropical storm-hurricane.If you have never been through one it is hard to imagine.The Texas and LA coast is flat and when you get alot of rain,like tropical storm allison,you can have hundreds of millions in damage.Not to mention where the tornadoes are going to touch down.As weather forecasters will tell you,even with all the computer modules,no one realy knows what a hurricane is going to do next,only take an educated guess.Have you ever been in a hurricane Sam,have you?

[rwfromkansas]

That low in the BOC is heading south fast enough it may stop affecting it...perhaps that will be enough to let it do what it wants..or perhaps we will have to wait for the ridge to rebuild to the right of Isadore. I don't know..I am just an amateur. But I will say it is not taking as much of a depressed southerly track as it was earlier.

[rwfromkansas]

http://smn.cna.gob.mx/radares/rad-canc.jpg

It is the Cancun radar.

[dennis1x]

If you look at that Cancun radar pic that you posted you can see the innner eye, and then some precipitation, and then another open ring.

When a hurricane gets really strong it develops an outer eye in addition to the inner eye (called eye wall replacement). during this time the hurricane is not strengthening. as the outer wall contracts and if the hurricane is to strenghten the concentric structure wont be there. at its strongest there will be one and only one precipitation void with a solid eye wall (heavy precipitation around it.

[Dog Gone]

You really know how to stink up a thread.

[glock rocks]

[eastforker]

concentric means center ,like a concentric reducer in pipe,where as ecentric would have the eye to one side of the wall,in other words,if not mistaken,this is a very tight storm.

[dennis1x]

at least wait for a hurricane with 300mph winds, or a 10.0 earthquake, or at least something that HASNT HAPPENED SINCE THE BEGINNING OF TIME before posting end of the world doom bs.

[newsperson999]

Wow,
Latest inrared sot is a classic..the eye is becoming better defined.,in fact there is now a 'black hole" is the sea of cold white cloud tops(or blue depending on what sat you are looking at)

[dennis1x]

noticed that too, appears to have really gotten its act together in just the last 2 hours.

[Dog Gone]

Either the storm picks up speed, or it won't be anywhere nearly that far west in 72 hours.

[SamAdams76]

Have I ever been in a hurricane? Well supposedly I have - according to the local forecasters up here who spent days hyping them up. A couple I remember is Hurricane Belle from 1976 and Hurricane Gloria from 1985. There were a couple more but I don't remember the names.

You repeated what I already said in an earlier post. Even with the fancy computer models, nobody know what a hurricane is going to do next. I think that is why they originally used to name them after women until the PC crowd made them alternate the genders. So based on that, I believe both you and I can agree that it is far too early to get excited about this one. It will still be several more days until we have a better idea of where it might make landfall.

[glock rocks]

[ovrtaxt]

Here's a killer IR shot of Isidore:

http://hurricane.accuweather.com/adcbin/hurricane/satellite.asp?ocean=atlantic&thisreg=egul&type=&sattype=ei

[glock rocks]

[NautiNurse]

From Vortex Data Message Explanation

Hurricane Eye shapes are coded as follows: C-circular; CO-concentric; E-elliptical.

Orientation of major axis of ellipse is transmitted in tens of degrees, and all diameters are transmitted in nautical miles.

Example: E09/15/5 means elliptical eye oriented with major axis thru 90 degrees (and also 270 degrees), with length of major axis 15 nm, and length of minor axis 5 nm. CO8-14 means concentric eye with inner eye diameter 8 miles, and outer diameter 14 miles.

The "healthiest" hurricanes usually have a small, circular eye. A concentric eye (a ring inside a ring) is a relatively rare phenomenon that may signal a temporary weakening while the storm reorganizes.

An eye diameter that shrinks (compared to the previous vortex message) may signal strengthening: just as a twirling ice skater spins faster as she pulls in her arms, a hurricane may "spin" faster as its eye gets smaller. Eye diameters are usually 10-20 nautical miles, while we sometimes see them as small as 5 nm to as large as 60 nm.

[jpsb]

Me too, no way I could get out of my little coastal village, all the roads would be parking lots. Seen it before with Allen. At least I have a sail boat nearby, Drop the hook and hang on.