ATL: BRET - Remnants - Discussion

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Re: ATL: BRET - Tropical Storm - Discussion

#501 Postby artist » Sun Jul 17, 2011 9:19 pm

MGC wrote:Not surprised at all with the formation of Bret. This system has been a rapid organizer. Just hope the NHC is right about the track....I'm rather paranoid of systems that cross south Florida....Betsy, Andrew, Katrina....seems they frequently find their way to where I am......MGC

I hope so too MGC.
When will the model runs start coming in?


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#502 Postby gatorcane » Sun Jul 17, 2011 9:20 pm

Still looks like it is dropping South to me, though the global models do forecast this. The farther south it goes, the less likely it will get pulled NE out to sea.

I keep looking at the huge 500MB ridge in the Cental U.S. It will slide to the east and weaken but position itself near the Carolinas by day 5.

Should Brett still be around, it won't head to to the N.E. But the NHC is forecasting it gets far enough NE by then so that it is not blocked.

I like the NHC forecast though, and think that is where it will ultimately end up.
Last edited by gatorcane on Sun Jul 17, 2011 9:22 pm, edited 1 time in total.
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Re: ATL: BRET - Tropical Storm - Discussion

#503 Postby Ivanhater » Sun Jul 17, 2011 9:22 pm

Convection is expanding near and over the center
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Re: ATL: BRET - Tropical Storm - Discussion

#504 Postby artist » Sun Jul 17, 2011 9:24 pm

Ivanhater wrote:Convection is expanding near and over the center

yeah, I've been noticing that Ivan. Do you know when the first models with the recon data will be coming in?
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Re: ATL: BRET - Tropical Storm - Discussion

#505 Postby Ivanhater » Sun Jul 17, 2011 9:26 pm

artist wrote:
Ivanhater wrote:Convection is expanding near and over the center

yeah, I've been noticing that Ivan. Do you know when the first models with the recon data will be coming in?


I'm pretty sure the 00z suite should have it
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#506 Postby Vortex » Sun Jul 17, 2011 9:27 pm

Folks,

As has been said, The last few hours there is a notable increase in the southern component...Very interesting indeed....Gcane made a comment earlier about the deep convection that fired over the southern FL peninsula and the possible impacts....more later but radar clearly has this moving 4-6kts generally south..
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Re:

#507 Postby 'CaneFreak » Sun Jul 17, 2011 9:27 pm

Howdy sir...I think the NHC is on to something here as well...however, if this system does not pick up forward speed soon and/or gain some latitude soon, I think the weakness to the north of the system might not be enough to pull it north and out to sea...this is not the time of year for weaknesses to be developing off the US east coast and I think maybe it will be around for a while...looking at the latest IR imagery, Bret appears to be holding his own despite the dry air around him due to the lack of shear. If there were more shear, then I would say the dry air could be the death knell, but I think he should be able to fight it off without a problem this go around...good to see you folks are still around :)

gatorcane wrote:Still looks like it is dropping South to me, though the global models do forecast this. The farther south it goes, the less likely it will get pulled NE out to sea.

I keep looking at the huge 500MB ridge in the Cental U.S. It will slide to the east and weaken but position itself near the Carolinas by day 5.

Should Brett still be around, it won't head to to the N.E. But the NHC is forecasting it gets far enough NE by then so that it is not blocked.

I like the NHC forecast though, and think that is where it will ultimately end up.
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Re:

#508 Postby 'CaneFreak » Sun Jul 17, 2011 9:33 pm

Also, to comment on this point a little...it appears that the day-time convection is now getting entrained into the convective bands (inflow) of our fledgling cyclone and this also could help it fight the dry air...there appears to be yet another WEAK mid level center forming to the east of Miami and it is trying to get sucked into it as well...have you seen any signs of it on radar yet?

Vortex wrote:Folks,

As has been said, The last few hours there is a notable increase in the southern component...Very interesting indeed....Gcane made a comment earlier about the deep convection that fired over the southern FL peninsula and the possible impacts....more later but radar clearly has this moving 4-6kts generally south..
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Re: ATL: BRET - Tropical Storm - Discussion

#509 Postby Ivanhater » Sun Jul 17, 2011 9:39 pm

Still trucking south

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#510 Postby Aric Dunn » Sun Jul 17, 2011 9:41 pm

interesting west shift in all the models for 18z.. I do think they will shift especially if it stregthens
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Re: ATL: BRET - Advisories

#511 Postby cycloneye » Sun Jul 17, 2011 9:41 pm

BULLETIN
TROPICAL STORM BRET ADVISORY NUMBER 2
NWS NATIONAL HURRICANE CENTER MIAMI FL AL022011
1100 PM EDT SUN JUL 17 2011

...BRET DRIFTING SOUTHEASTWARD...EXPECTED TO BEGIN MOVING
NORTH-NORTHEASTWARD ON MONDAY...


SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...27.5N 78.0W
ABOUT 95 MI...150 KM NW OF GREAT ABACO ISLAND
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...SE OR 145 DEGREES AT 2 MPH...4 KM/H
MINIMUM CENTRAL PRESSURE...1009 MB...29.80 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* GRAND BAHAMA ISLAND AND THE ABACO ISLANDS IN THE NORTHWEST BAHAMAS

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE WITHIN THE NEXT 24
HOURS.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1100 PM EDT...0300 UTC...THE CENTER OF TROPICAL STORM BRET WAS
LOCATED NEAR LATITUDE 27.5 NORTH...LONGITUDE 78.0 WEST. BRET IS
DRIFTING TOWARD THE SOUTHEAST NEAR 2 MPH...4 KM/H...AND LITTLE
MOVEMENT IS EXPECTED OVERNIGHT...FOLLOWED BY A SLOW NORTH-
NORTHEASTWARD MOTION ON MONDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 40 MPH...65 KM/H...WITH HIGHER
GUSTS. SOME STRENGTHENING IS FORECAST DURING THE NEXT DAY OR SO.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM
FROM THE CENTER.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 1009 MB...29.80 INCHES.


HAZARDS AFFECTING LAND
----------------------
RAINFALL...BRET COULD PRODUCE TOTAL RAINFALL AMOUNTS OF 2
TO 4 INCHES OVER THE NORTHWEST BAHAMAS.

WIND...TROPICAL STORM CONDITIONS ARE POSSIBLE IN THE EXTREME
NORTHWESTERN BAHAMAS TONIGHT AND MONDAY.

SURF...LOCALLY HIGH SURF CONDITIONS CAN BE EXPECTED ALONG NORTHERN
AND WESTERN FACING BEACHES IN THE NORTHWEST BAHAMAS THROUGH
MONDAY.


NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...200 AM EDT.
NEXT COMPLETE ADVISORY...500 AM EDT.

$$
FORECASTER BROWN/BERG

NNNN


TROPICAL STORM BRET DISCUSSION NUMBER 2
NWS NATIONAL HURRICANE CENTER MIAMI FL AL022011
1100 PM EDT SUN JUL 17 2011

THE AIR FORCE HURRICANE HUNTER AIRCRAFT MADE TWO ADDITIONAL PASSES
THROUGH THE CENTER OF THE TROPICAL CYCLONE AFTER THE RELEASE OF THE
2100 UTC NHC ADVISORY. DURING THOSE PASSES...PEAK FLIGHT-LEVEL
WINDS OF 43-45 KT WERE RECORDED ALONG WITH A FEW BELIEVABLE SFMR
SURFACE WINDS JUST ABOVE TROPICAL STORM FORCE. BASED ON THESE
OBSERVATIONS AND THE DEVELOPMENT OF NEW CONVECTION JUST NORTHEAST
OF THE CENTER AROUND 0000 UTC...THE DEPRESSION WAS UPGRADED TO A
TROPICAL STORM AT THAT TIME. MICROWAVE AND SATELLITE IMAGERY SHOW
THAT MOST OF THE ASSOCIATED DEEP CONVECTION IS LOCATED OVER THE
EASTERN SEMICIRCLE OF THE CIRCULATION DUE TO MODERATE WESTERLY
SHEAR. THE SHEAR IS FORECAST TO DECREASE SLIGHTLY DURING THE NEXT
12-24 HOURS...WHICH SHOULD ALLOW AN OPPORTUNITY FOR SOME
STRENGTHENING. THE NHC INTENSITY FORECAST IS IN GOOD AGREEMENT
WITH THE SHIPS/LGEM GUIDANCE AND SHOWS PEAK INTENSITY OCCURRING
BETWEEN 24-36 HOURS. WEAKENING IS INDICATED BEYOND 36 HOURS WHEN
THE GLOBAL MODELS PREDICT AN INCREASE IN UPPER-LEVEL NORTHEASTERLY
WINDS OVER THE CYCLONE.

BRET HAS BEEN DRIFTING EASTWARD DURING THE PAST FEW HOURS...BUT A
LONGER-TERM MOTION YIELDS 145/2. THE TROPICAL STORM IS NOT
FORECAST TO MOVE VERY MUCH DURING THE NEXT 12-18 HOURS AS IT
REMAINS IN AN AREA OF WEAK STEERING CURRENTS. IN 24-36 HOURS...THE
RIDGE TO THE SOUTHEAST OF BRET IS FORECAST TO STRENGTHEN WHICH
SHOULD PRODUCE A NORTHEASTWARD MOTION. AS BRET GAINS LATITUDE IN
2-3 DAYS...IT SHOULD ACCELERATE EAST-NORTHEASTWARD WITHIN AN AREA
OF DEEP-LAYER WESTERLY FLOW. THE LATEST HWRF AND GFDL MODEL
FORECASTS SHOW A MORE NORTH-NORTHEASTWARD MOTION WITH A TRACK MUCH
CLOSER TO THE UNITED STATES THAN THE USUALLY RELIABLE ECMWF AND GFS
MODELS. THIS SCENARIO APPEARS UNLIKELY DUE TO THE STRENGTH OF THE
MID- TO UPPER-LEVEL RIDGE FORECAST OVER THE CENTRAL UNITED STATES.
FOR NOW...THE OFFICIAL FORECAST PLACES MORE WEIGHT ON THE GLOBAL
MODELS AND IS VERY SIMILAR TO THE PREVIOUS NHC TRACK.

FORECAST POSITIONS AND MAX WINDS

INIT 18/0300Z 27.5N 78.0W 35 KT 40 MPH
12H 18/1200Z 27.7N 77.9W 40 KT 45 MPH
24H 19/0000Z 28.5N 77.4W 50 KT 60 MPH
36H 19/1200Z 29.7N 76.7W 50 KT 60 MPH
48H 20/0000Z 30.7N 75.5W 45 KT 50 MPH
72H 21/0000Z 32.5N 71.5W 40 KT 45 MPH
96H 22/0000Z 34.5N 65.5W 35 KT 40 MPH
120H 23/0000Z 36.5N 58.5W 30 KT 35 MPH

$$
FORECASTER BROWN/BERG






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#512 Postby BigB0882 » Sun Jul 17, 2011 9:45 pm

This is reminding me of Katrina with how it was supposed to start taking off to the North and it kept going South and West and finally the tracks were greatly shifted West. Tomorrow should tell us a lot more.
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#513 Postby artist » Sun Jul 17, 2011 9:46 pm

recon is on their way out there??
URNT15 KNHC 180235
AF308 0202A BRET HDOB 01 20110718
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Re: ATL: BRET - Tropical Storm - Discussion

#514 Postby wxman57 » Sun Jul 17, 2011 9:46 pm

I'm not seeing any reason to disagree with the NHC advisory. Little movement for 12-24 hours then off to the NE. Time for bed.
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#515 Postby artist » Sun Jul 17, 2011 9:46 pm

URNT15 KNHC 180235
AF308 0202A BRET HDOB 01 20110718
022530 3025N 08855W 0163 ///// //// +245 //// 360000 000 /// /// 25
022600 3025N 08855W 0163 ///// //// +245 //// 360000 000 /// /// 25
022630 3025N 08855W 0163 ///// //// +245 //// 360000 000 /// /// 25
022700 3025N 08855W 0163 ///// //// +245 //// 360000 000 /// /// 25
022730 3025N 08855W 0164 ///// //// +245 //// 360000 000 /// /// 25
022800 3025N 08855W 0164 ///// //// +245 //// 360000 000 /// /// 25
022830 3025N 08855W 0164 ///// //// +245 //// 360000 000 /// /// 25
022900 3025N 08855W 0164 00011 //// +245 //// 360000 000 /// /// 05
022930 3025N 08855W 0164 00011 //// +245 //// 360000 000 /// /// 05
023000 3025N 08855W 0164 00011 //// +245 //// 360000 000 /// /// 05
023030 3025N 08855W 0164 00012 //// +245 //// 360000 000 /// /// 05
023100 3025N 08855W 0156 00011 //// +245 //// 360000 000 /// /// 05
023130 3025N 08855W 0163 00012 //// +245 //// 360000 000 /// /// 05
023200 3025N 08855W 0164 00012 //// +245 //// 360000 000 /// /// 05
023230 3025N 08855W 0164 00011 //// +245 //// 360000 000 /// /// 05
023300 3025N 08855W 0164 00012 //// +245 //// 360000 000 /// /// 05
023330 3025N 08855W 0164 00012 //// +245 //// 360000 000 /// /// 05
023400 3025N 08855W 0164 00012 //// +245 //// 360000 000 /// /// 05
023430 3025N 08855W 0164 00011 //// +245 //// 360000 000 /// /// 05
023500 3025N 08855W 0164 00011 //// +245 //// 360000 000 /// /// 05
$$
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Re: ATL: BRET - Tropical Storm - Discussion

#516 Postby Recurve » Sun Jul 17, 2011 9:47 pm

On long-range radar the convection blob over south florida appears to be getting drawn into the long tail band of Bret. I measure the center about 150 nm northeast of Miami.
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Re: ATL: BRET - Tropical Storm - Discussion

#517 Postby Aric Dunn » Sun Jul 17, 2011 9:48 pm

wxman57 wrote:I'm not seeing any reason to disagree with the NHC advisory. Little movement for 12-24 hours then off to the NE. Time for bed.


only problem is that its accelerating south... complete opposite of the forecast track
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Re: ATL: BRET - Tropical Storm - Discussion

#518 Postby Ivanhater » Sun Jul 17, 2011 9:48 pm

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Re: ATL: BRET - Tropical Storm - Discussion

#519 Postby artist » Sun Jul 17, 2011 9:48 pm

Aric Dunn wrote:
wxman57 wrote:I'm not seeing any reason to disagree with the NHC advisory. Little movement for 12-24 hours then off to the NE. Time for bed.


only problem is that its accelerating south... complete opposite of the forecast track

Recon seems to be on their way.
URNT15 KNHC 180235
AF308 0202A BRET HDOB 01 20110718
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#520 Postby NDG » Sun Jul 17, 2011 9:49 pm

I am not buying the NE track that fast, I am thinking that it will stay in the general for at least a couple of days, after that....
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