Gulf Coast Disturbance (early August)

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Javlin
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Re: Northeastern Gulf of Mexico

#141 Postby Javlin » Sat Aug 06, 2016 11:19 am

psyclone wrote:Notice on those HPC maps that the axis of heavy rain moves westward with time...very little additional rain for cedar key after day 5 but Panama city goes way up from day 5 to day 7. I've always envisioned this as a heavy rain event with TC development a secondary possibility. ..but if you look at the extent of the heavy rain potential this could be a big deal even in the absence of a designated TC...reiterating a point often made...we need not have a number or a name for a memorable and potentially destructive event.


I looked at several models this morning precipitation wise and it does appear to drift W and not much over time in the accumulation values.When I looked at the CMC(ATL) and the Euro(GOM) what event would actually move up the E coast inland through Georgia and the Carolina's seems to come from two different entities.The only agreement was something was to move NNE over time but hey that was about 190+ hours out and still fantasy at this point.I am thinking alot of rain is in store for some along the coast starting late Sunday into next week.
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Re: Northeastern Gulf of Mexico

#142 Postby gatorcane » Sat Aug 06, 2016 11:51 am

Wow look at all the rain offshore the Tampa area slowly moving east: :eek:

http://radar.weather.gov/ridge/radar.ph ... 1&loop=yes
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Re: Northeastern Gulf of Mexico

#143 Postby Javlin » Sat Aug 06, 2016 11:59 am

gatorcane wrote:Wow look at all the rain offshore the Tampa area slowly moving east: :eek:

http://radar.weather.gov/ridge/radar.ph ... 1&loop=yes


One of the models showed for maybe a ten day period 15-20" rain out that way and the Big Bend area.
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Re: Northeastern Gulf of Mexico

#144 Postby gatorcane » Sat Aug 06, 2016 12:10 pm

A buoy over the NE GOM 112 NM WNW of Tampa is seeing pressures dropping while winds are on the increase. Also the buoy is reporting a water temp of 86.4F

Image
Last edited by gatorcane on Sat Aug 06, 2016 12:12 pm, edited 1 time in total.
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Re: Northeastern Gulf of Mexico

#145 Postby northjaxpro » Sat Aug 06, 2016 12:11 pm

I touched on this late this morning in that it definitely looks as if the trough axis has shifted southeastward into the GOM. What we have is an elongated low level vorticity in Apalachee Bay. There is now a pronounced area of dry air across the western panhandle now the trough axis has moved southeast a bit farther off shore.

The heaviest rain for the time being will be in Apalachee Bay from offshore Dixie, Taylor counites and south to just off the Nature Coast region. Also, pay close attention as to when and where if this large precipitation shield makes it across into the Nature Coast region or inland later today.
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Re: Northeastern Gulf of Mexico

#146 Postby tarheelprogrammer » Sat Aug 06, 2016 12:13 pm

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Re: Northeastern Gulf of Mexico

#147 Postby gatorcane » Sat Aug 06, 2016 12:15 pm

tarheelprogrammer wrote:Starting to get that TC look to it. :eek:


Yes I agree it does have that look. Only land interaction seems to be the inhibiting factor. We see pressures are dropping across the NE Gulf and winds are on the increase. I think the NHC could go higher on development chances in their upcoming 2pm EST advisory.
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Re: Northeastern Gulf of Mexico

#148 Postby stormhunter7 » Sat Aug 06, 2016 12:21 pm

Image

looks to me there is a low off cedar key area?
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Re: Northeastern Gulf of Mexico

#149 Postby northjaxpro » Sat Aug 06, 2016 12:23 pm

gatorcane wrote:
tarheelprogrammer wrote:Starting to get that TC look to it. :eek:


Yes I agree it does have that look. Only land interaction seems to be the inhibiting factor. We see pressures are dropping across the NE Gulf and winds are on the increase. I think the NHC could go higher on development chances in their upcoming 2pm EST advisory.


Nothing yet regarding the designation of Invest 98L. This could occur at any moment now however.
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Re: Northeastern Gulf of Mexico

#150 Postby gatorcane » Sat Aug 06, 2016 12:25 pm

stormhunter7 wrote:http://i.giphy.com/l3fQdCCu7pBrEAUCI.gif

looks to me there is a low off cedar key area?


As northjaxpro has pointed out, look near Apalachee Bay. There appears to be the most vorticity there though the vorticity is elongated at the moment.
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Re: Northeastern Gulf of Mexico

#151 Postby northjaxpro » Sat Aug 06, 2016 12:27 pm

Beginning to see now that Low pressure area is becoming more pronounced imo just to the south-southeast of Apalachicola.
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Re: Northeastern Gulf of Mexico

#152 Postby stormhunter7 » Sat Aug 06, 2016 12:29 pm

northjaxpro wrote:Beginning to see now that Low pressure area is becoming more pronounced imo just to the south-southeast of Apalachicola.



buoy data shows there is west winds, south, north, and east winds in Apalachee Bay.
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Re: Northeastern Gulf of Mexico

#153 Postby TheStormExpert » Sat Aug 06, 2016 12:33 pm

This should be Invest 98L this afternoon.
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Re: Northeastern Gulf of Mexico

#154 Postby northjaxpro » Sat Aug 06, 2016 12:34 pm

You now can see the surface circulation outlined pretty nicely on visible imagery. I would put the Low area roughly about 55 miles S-SE of Apalachicola in Apalachee Bay.
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Re: Northeastern Gulf of Mexico

#155 Postby stormhunter7 » Sat Aug 06, 2016 12:37 pm

Image
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Re: Northeastern Gulf of Mexico

#156 Postby northjaxpro » Sat Aug 06, 2016 12:41 pm

There is some dry air off to the north and northwest of the system, which I alluded to a short time ago. but plenty of deep tropical moisture to the south and east of the LOW for certain.
Last edited by northjaxpro on Sat Aug 06, 2016 12:45 pm, edited 1 time in total.
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Re: Northeastern Gulf of Mexico

#157 Postby cycloneye » Sat Aug 06, 2016 12:41 pm

Down to 20% in 5 days.

An area of cloudiness and thunderstorms associated with a trough of
low pressure is located over the northeastern Gulf of Mexico. Some
slight development is possible before the system moves inland over
the southeastern United States in a couple of days. Regardless of
development, heavy rainfall over northern Florida is anticipated.
* Formation chance through 48 hours...low...20 percent
* Formation chance through 5 days...low...20 percent
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Re: Northeastern Gulf of Mexico

#158 Postby WeatherEmperor » Sat Aug 06, 2016 12:41 pm

NHC has development chances at 20% at 2PM
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Re: Northeastern Gulf of Mexico

#159 Postby gatorcane » Sat Aug 06, 2016 12:55 pm

12z EC with a stronger vort by 24 hours compared to 00Z and a 1010mb low but moves it inland
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Re: Northeastern Gulf of Mexico

#160 Postby weathaguyry » Sat Aug 06, 2016 12:58 pm

Not sure why they lowered the chances, was it because of land interaction?
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