Saturday, September 11, 2010

Tropical Storm Igor Latest Update

20100911.0515.msg-2.ir.11L.IGOR.45kts.1000mb.17N.34.2W.100pc

20100911.0515.msg-2.ircolor.11L.IGOR.45kts.1000mb.17N.34.2W.100pc

An eye forming? I do not think one can actually consider that to be an eye forming. First off ..usually an eye will be in the central location of the storm or at least where the COC is. and as you can tell by looking at this image the COC is actually not located where that “hole” is

11L

So the center of circulation is actually to the east of what you see on the first visible image.

Tropical storm IGOR is still a sheared cyclone and is still under about 10-20 knots of shear with the anticyclone right to its NE. The best convergence and divergence actually lies to the west of the system. And there is still alot of dry air around this system..not immediately around it per say but definitely north of the system.

condiverg

shear

dry

Two other factors that I think are currently working against this storm are the speed of the system at 21 MPH and then the cooler waters. Despite NHC saying the waters are warmer that the storm will be encountering as it moves west…the track that they have laid out keeps it on the cooler side of the waters..

water

You can see the warmer waters are actually south of the track laid out..

Models are still all over the place with the track of this system as of 00z.

Storm-11-Spaghetti

Regardless of whether or not that is an eye forming.. tropical storm IGOR as of 2:45 AM is on the verge of becoming a hurricane…pressure is down to 995 MBS and we are now at a 60 KT storm…

The water vapor loop and the IR loop kind of send a conflicting message as it appears that the convection is warming and perhaps lessening..

AOI1_ir_loop

AOI1_wv_loop

So while it has strengthened as of 06 Z …going to have to continue to monitor things to see if this strengthening is going to continue or if we could be going into a weakening phase?

Stay tuned for updates..

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