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Hurricane Idalia


hlcater
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Water temp at this buoy 112m NW of Tampa is 88F. This is about 2 to 3* above the August average for that location.  Combined with the low shear and upper level trough enhancement, pretty ideal setup up until landfall. Not sure I would expect any weakening. In fact, this looks pretty ideal for some explosive strengthening tonight. Perhaps more so than even forecasted. Not looking too good. If we see anymore trends west TLH could see some wild winds.

 

NDBC - Station 42036 Recent Data (noaa.gov)

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22 minutes ago, lakeeffectkid383 said:

About 18 hours away from landfall give or take. 2mb drop in pressure per hour puts this thing around 940mb by landfall. 

~975mb seems to be a a common spot where RI starts.  Happened with Micheal, IDA, Laura, Dorian and too many other for me to list.

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I know the focus in on FL but the 12Z runs are really bad news for GA.

Valdosta and Savannah could be looking at direct hits and metro Atlanta would get alot more weather (depending upon how bad the west side of the cane is) than it appeared 24 hours ago.

Atlanta has a huge tree canopy so high winds and heavy rain could lead to alot of power outages.

Also, the entire GA coast would be on the dirty side and have onshore action along the barrier islands.

 

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At this point Idalia only has about 18 hours left over water. Not much time for changes in track. The good news is there is some leeway with the landfall point relative to the 11 am NHC track in order to avoid major coastal impacts on more heavily populated areas. Biggest threat at this point is if the turn NNE gets delayed and Idalia ends up toward the central/west side of Apalachee Bay. Not really worried about is going back more SE at this point.

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6 minutes ago, BYG Jacob said:

Absolutely not.

On visible sat imagery then why is there a clear air inflow channel coming in from the south. Continuing west around the circulation and into the center. I am not doubting you. But I am asking why there is a clear air channel entering the circulation of that's not dry air. 

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Just now, Master of Disaster said:

On visible sat imagery then why is there a clear air inflow channel coming in from the south. Continuing west around the circulation and into the center. I am not doubting you. But I am asking why there is a clear air channel entering the circulation of that's not dry air. 

Yep and you can see it's inhibiting the NW side a bit as it wraps in.    Good news for FL as it may delay any quick strengthening and we are less than 18 hrs from landfall at this point.

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15 minutes ago, Master of Disaster said:

On visible sat imagery then why is there a clear air inflow channel coming in from the south. Continuing west around the circulation and into the center. I am not doubting you. But I am asking why there is a clear air channel entering the circulation of that's not dry air.

The dry air is not being pushed into the core or eyewall of the storm. That would require shear, the hurricane will moisten the part of the storm the dry air got into with no issue. It's actually a bad thing in this case, because it means convective banding won't be able to wrap around and start an ERC.

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17 minutes ago, Brian5671 said:

Yep and you can see it's inhibiting the NW side a bit as it wraps in.    Good news for FL as it may delay any quick strengthening and we are less than 18 hrs from landfall at this point.

Again, no. There isn't any shear to push the dry air into the core.

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5 minutes ago, Brian5671 said:

Yep and you can see it's inhibiting the NW side a bit as it wraps in.    Good news for FL as it may delay any quick strengthening and we are less than 18 hrs from landfall at this point.

The water vapor loop doesn’t show any exceptionally dry air around and even if so, without shear to direct it into the core it would probably stay separated. It also makes sense that with air rising fast inside the hurricane it would sink/dry up away from it. 

The NW side looks “inhibited” because the outflow/ventilation channel is to its NE. It’s not a sign of shear knocking away at the storm. 

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Why is there not a plane in the storm right now, in advance of the crucial, day-before-landfall 5 p.m. advisory?

Why does NHC still have a track that doesn't/barely includes Tallahassee/St. George even as all three hurricane models and the GFS show landfall there?

I mean, I never thought I'd be Criticize the NHC Guy, but I really don't get it. 

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3 minutes ago, beanskip said:

Why is there not a plane in the storm right now, in advance of the crucial, day-before-landfall 5 p.m. advisory?

Why does NHC still have a track that doesn't/barely includes Tallahassee/St. George even as all three hurricane models and the GFS show landfall there?

I mean, I never thought I'd be Criticize the NHC Guy, but I really don't get it. 

Budget cuts at the Air Force? Only so much money to spend on recon flights per calendar year. They got to stay within their budget. 

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