Weak low in NE Gulf of Mexico: (Is Invest 95L)

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ronjon
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Re: Weak low in NE Gulf of Mexico

#481 Postby ronjon » Sun Aug 02, 2015 8:30 am

caneman wrote:Some areas here have picked up 12 inches of rain already. They are forecasting another 3 to 6 inches. Ive.lived here 35 years and never remember anything like it. If you get a chance check some of the news sites here f for the tampa bay area to see photos. I hate El Nino for us it means copious rains and cold winters.


I'm here about 35 miles north of you along the coast in Hernando Beach. I've recorded 18.6 inches for July with another 2 inches yesterday after a rather dry June.
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Re: Weak low in NE Gulf of Mexico

#482 Postby caneman » Sun Aug 02, 2015 8:33 am

The real concern now is if we do get some type of tropical system in the neAR term. There will be a lot of fallen trees due to ground saturation. I guess this pattern is going to set up again next weekend. Well, the first half of summer was nice at least. I feel bad for all the vacationers that likely saved for an entire year only to have complete and entire rain outs.
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Re: Re:

#483 Postby NDG » Sun Aug 02, 2015 8:35 am

TheStormExpert wrote:
caneman wrote:Some areas here have picked up 12 inches of rain already. They are forecasting another 3 to 6 inches. Ive.lived here 35 years and never remember anything like it. If you get a chance check some of the news sites here f for the tampa bay area to see photos. I hate El Nino for us it means copious rains and cold winters.

Typically El Niños do not have as much control over the weather here in Florida during the summer as they do during the winter.

But yeah, unfortunately expect a wetter and at least cooler than normal winter here in Florida.
:cold:


It all depends on the NAO, it is a known fact that if the NAO is positive during the winter and spring during an El Niño winter the FL Peninsula experiences near normal to above average temps with wet conditions. This happened during the 97/98 Super El Niño.
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Re: Weak low in NE Gulf of Mexico

#484 Postby caneman » Sun Aug 02, 2015 8:47 am

Hey Ronjon,

That sounds about right. The 12 inches was at Tampa Airport, I'm sure many cities are well above that. I was just up your way- Hernando Beach snagging some of those great Scallops.
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Re: Weak low in NE Gulf of Mexico

#485 Postby TheStormExpert » Sun Aug 02, 2015 8:47 am

NDG wrote:I personally do not think anything will come out of that convection west of Tampa, surface trough is now way north of it, nothing but westerly winds underneath the weak mid level vorticity.
Models show surface high pressure ridge moving back in before the next trough comes down next weekend. Upper level northerly winds are forecasted to increase once again across the eastern GOM.

This pattern we're in seems too fall/winter like to allow in close development. Does anyone see this changing?
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Re:

#486 Postby Dean4Storms » Sun Aug 02, 2015 8:53 am

TheStormExpert wrote::uarrow: Was noticing that complex earlier and thought it might be worth monitoring. Though this pesky relentless shear just won't ease up one bit!

Wonder if this will be the case here and off the SE U.S. Coast the rest of the season, or will we finally become more favorable in these regions as time goes on?


From the indications I've seen with the CFSv2 it looks like a warmer late August and Sept. for much of the Eastern Half of the USA, which would lead me to believe that Ridging is the dominating upper level pressure pattern instead of all this repetitive Troughing. If so, think we'd have less shear along the Eastern Seaboard and Gulf, might be bad timing with the Wave Train becoming more active. We'll see!
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Re: Re:

#487 Postby TheStormExpert » Sun Aug 02, 2015 9:05 am

Dean4Storms wrote:
TheStormExpert wrote::uarrow: Was noticing that complex earlier and thought it might be worth monitoring. Though this pesky relentless shear just won't ease up one bit!

Wonder if this will be the case here and off the SE U.S. Coast the rest of the season, or will we finally become more favorable in these regions as time goes on?


From the indications I've seen with the CFSv2 it looks like a warmer late August and Sept. for much of the Eastern Half of the USA, which would lead me to believe that Ridging is the dominating upper level pressure pattern instead of all this repetitive Troughing. If so, think we'd have less shear along the Eastern Seaboard and Gulf, might be bad timing with the Wave Train becoming more active. We'll see!

Would think at some point this season we'd see a quick burst of activity which would likely be when most of our hurricanes form(similar to last season or 2006).
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Re: Re:

#488 Postby NDG » Sun Aug 02, 2015 9:05 am

Dean4Storms wrote:
TheStormExpert wrote::uarrow: Was noticing that complex earlier and thought it might be worth monitoring. Though this pesky relentless shear just won't ease up one bit!

Wonder if this will be the case here and off the SE U.S. Coast the rest of the season, or will we finally become more favorable in these regions as time goes on?


From the indications I've seen with the CFSv2 it looks like a warmer late August and Sept. for much of the Eastern Half of the USA, which would lead me to believe that Ridging is the dominating upper level pressure pattern instead of all this repetitive Troughing. If so, think we'd have less shear along the Eastern Seaboard and Gulf, might be bad timing with the Wave Train becoming more active. We'll see!


Yes, the Euro and GFS are starting to point out to a ridging across the eastern US as we get closer to the middle of August, will it stay in place I couldn't answer that.
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#489 Postby NDG » Sun Aug 02, 2015 9:09 am

And here came the rains again, very tropical like squall.

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#490 Postby NDG » Sun Aug 02, 2015 9:17 am

The low pressure center that could had if it wasn't for the persistent northerly shear and now drier air over it.
Looks to be nearly stationary this morning.

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#491 Postby northjaxpro » Sun Aug 02, 2015 9:22 am

Yeah, that Low has been nearly stationary for the past 12 hours going back to last night NDG. It is a nice low level swirl which simply got sheared badly. We will be getting enhanced lift and moisture from that Low over North Florida later today into tonight with rain filling in towards Jax area as that Low is forecast to move northeast and up along the SE U.S. coast (hopefully) to finally get this moisture out of here, albeit only briefly as another trough is forecast to come into the region by late this upcoming week.
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#492 Postby Dean4Storms » Sun Aug 02, 2015 9:31 am

Yea, that little low level swirl and low pressure look separated from the Convection further WSW down around 27.5N and 87W. That area is getting my attention this morning as the convection continues to refire over the same area. Wouldn't surprise me to see another Low form along that trough with Convection this robust if it continues today!
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Re:

#493 Postby northjaxpro » Sun Aug 02, 2015 9:35 am

Dean4Storms wrote:Yea, that little low level swirl and low pressure look separated from the Convection further WSW down around 27.5N and 87W. That area is getting my attention this morning as the convection continues to refire over the same area. Wouldn't surprise me to see another Low form along that trough with Convection this robust if it continues today!


yeah, we have seen several of these Low Pressure waves form this past week, so I would not be surprised if another Low pressure wave developed. If one did today or tonight, it would be sheared of course, but it is worth watching in the short term.
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Re: Weak low in NE Gulf of Mexico

#494 Postby wxman57 » Sun Aug 02, 2015 9:49 am

Weak low-level swirl has moved inland into the eastern FL panhandle. Pressures are starting to rise across the NE Gulf. No evidence of any rotation in offshore obs. Development chances remain near zero.
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Re: Weak low in NE Gulf of Mexico

#495 Postby northjaxpro » Sun Aug 02, 2015 11:08 am

wxman57 wrote:Weak low-level swirl has moved inland into the eastern FL panhandle. Pressures are starting to rise across the NE Gulf. No evidence of any rotation in offshore obs. Development chances remain near zero.


Actually, and it likely will be just a very brief time today, but actually, the low level swirl has drifted back over Apalachee Bay, seen very well on both satellite imagery and Tallahassee radar at the noon hour.
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Re: Weak low in NE Gulf of Mexico

#496 Postby Sanibel » Sun Aug 02, 2015 11:29 am

Right on time. The switch is turning on if that swirl can get over water.


You could see it starting to twist up yesterday.
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#497 Postby northjaxpro » Sun Aug 02, 2015 11:36 am

Well, it has been meandering about and or been nearly stationary since last night. So, at the current time, it has drifted just offshore the coast in Apalachee Bay for hopefully just a brief time this afternoon before moving out to the northeast.
Last edited by northjaxpro on Sun Aug 02, 2015 11:38 am, edited 1 time in total.
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#498 Postby gatorcane » Sun Aug 02, 2015 11:38 am

This link shows the swirl very well, look around the coastline of Apalachee Bay. Appears to be drifting south at the moment, as some have noted:

http://www.nrlmry.navy.mil/nexsat-bin/n ... PE=Instant
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Re: Weak low in NE Gulf of Mexico

#499 Postby ronjon » Sun Aug 02, 2015 11:45 am

Low pressure shows up nicely on Tallahassee RAD. Just offshore drifting slowly.
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#500 Postby northjaxpro » Sun Aug 02, 2015 11:45 am

Thanks for pulling the Navy sat link gatorcane. I always love that particular imagery. Excellent satellite imagery showing the Low level swirl emerging back over Apalachee Bay.

Also, 1009 mb surface pressure was the analysis by NHC at 15Z.
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