ATL: CHANTAL - Post-Tropical

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Re: ATL: CHANTAL - Tropical Storm - Discussion

#3061 Postby Aric Dunn » Wed Jul 10, 2013 12:41 pm

SouthFloridawx wrote:If you look at this loop, you can see a circulation run into Hispaniola and that's where it is now.

[img]http://tropic.ssec.wisc.edu/real-time/mimic-tpw/natl/anim/latest72hrs.gif[img]



I was wondering it that had occurred. may have to watch the north of Hispaniola over the next couple days as the energy splits..
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#3062 Postby Aric Dunn » Wed Jul 10, 2013 12:47 pm

Also its quite possible between Jamaica Cuba and hati is typically where there is add vorticity do to the lay out of the islands.
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#3063 Postby artist » Wed Jul 10, 2013 12:48 pm

Image
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Re: ATL: CHANTAL - Tropical Storm - Discussion

#3064 Postby Florida1118 » Wed Jul 10, 2013 12:49 pm

...SEARCHING FOR CHANTAL... ...AIR FORCE HURRICANE HUNTERS WORKING HARD TO FIND A CENTER...

2:00 PM EDT Wed Jul 10
Location: 16.5°N 73.0°W
Moving: W at 29 mph
Min pressure: 1011 mb
Max sustained: 45 mph
Last edited by Florida1118 on Wed Jul 10, 2013 12:52 pm, edited 2 times in total.
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#3065 Postby artist » Wed Jul 10, 2013 12:50 pm

000
URNT15 KNHC 101748
AF301 0503A CHANTAL HDOB 45 20130710
173830 1703N 07217W 9250 00829 0171 +200 +192 148037 038 027 000 00
173900 1703N 07215W 9248 00831 0171 +201 +188 147038 039 027 000 00
173930 1703N 07213W 9249 00831 0173 +199 +190 147037 038 026 001 00
174000 1703N 07211W 9249 00831 0174 +196 +194 146037 038 026 000 00
174030 1704N 07209W 9249 00830 //// +196 //// 145036 037 027 001 01
174100 1704N 07207W 9248 00832 //// +195 //// 144035 036 027 001 01
174130 1704N 07205W 9249 00832 //// +194 //// 143034 034 027 002 01
174200 1704N 07202W 9246 00834 //// +195 //// 145032 034 025 002 01
174230 1704N 07200W 9249 00831 //// +197 //// 146032 032 027 002 01
174300 1705N 07158W 9248 00831 //// +200 //// 151032 033 028 001 01
174330 1705N 07156W 9249 00829 0170 +202 +196 155034 035 029 002 00
174400 1705N 07154W 9250 00828 0171 +201 +188 153035 035 033 003 00
174430 1705N 07152W 9248 00829 0170 +202 +188 156034 035 033 005 00
174500 1706N 07150W 9250 00829 0171 +198 +195 155032 033 034 005 00
174530 1706N 07147W 9246 00833 0172 +199 +194 155031 032 032 005 00
174600 1706N 07145W 9248 00832 0172 +201 +188 148032 033 035 008 00
174630 1706N 07143W 9085 00986 0178 +183 +182 147034 034 035 009 00
174700 1707N 07141W 8853 01208 0188 +174 +174 153032 034 033 009 00
174730 1707N 07139W 8547 01511 0186 +158 +158 158032 033 030 008 00
174800 1707N 07137W 8252 01814 0188 +141 //// 161032 033 031 004 01
$$
;
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Re: ATL: CHANTAL - Advisories

#3066 Postby cycloneye » Wed Jul 10, 2013 12:51 pm

BULLETIN
TROPICAL STORM CHANTAL INTERMEDIATE ADVISORY NUMBER 11A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL032013
200 PM EDT WED JUL 10 2013

...SEARCHING FOR CHANTAL...
...AIR FORCE HURRICANE HUNTERS WORKING HARD TO FIND A CENTER...

SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...16.5N 73.0W
ABOUT 270 MI...430 KM ESE OF KINGSTON JAMAICA
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 29 MPH...46 KM/H
MINIMUM CENTRAL PRESSURE...1011 MB...29.85 INCHES


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

THE GOVERNMENT OF THE DOMINICAN REPUBLIC HAS DISCONTINUED THE
TROPICAL STORM WARNING FOR THE DOMINICAN REPUBLIC.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* ENTIRE COAST OF HAITI
* TURKS AND CAICOS
* SOUTHEASTERN BAHAMAS

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* CENTRAL BAHAMAS
* JAMAICA

ALL TROPICAL STORM WATCHES AND WARNINGS COULD BE DISCONTINUED LATER
TODAY IF CHANTAL DEGENERATES INTO A TROPICAL WAVE.

INTERESTS IN EASTERN CUBA AND THE NORTHWESTERN BAHAMAS SHOULD
MONITOR THE PROGRESS OF CHANTAL.

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


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 200 PM EDT...1800 UTC...THE CENTER OF TROPICAL STORM CHANTAL WAS
ESTIMATED NEAR LATITUDE 16.5 NORTH...LONGITUDE 73.0 WEST. CHANTAL IS
RACING WESTWARD NEAR 29 MPH...46 KM/H. IF CHANTAL REMAINS A TROPICAL
CYCLONE...A TURN TOWARD THE WEST-NORTHWEST AND NORTHWEST WITH A
GRADUAL DECREASE IN FORWARD SPEED IS EXPECTED DURING THE NEXT 48
HOURS. A MORE WESTWARD TRACK IS LIKELY IF CHANTAL DEGENERATES INTO
A WAVE.

MAXIMUM SUSTAINED WINDS ARE NEAR 45 MPH...75 KM/H...WITH HIGHER
GUSTS. THESE WINDS ARE CONFINED TO THE NORTH AND EAST OF THE
CENTER. DATA FROM A RECONNAISSANCE PLANE CURRENTLY INVESTIGATING
CHANTAL SUGGEST THAT THE CYCLONE IS DEGENERATING INTO A TROPICAL
WAVE.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 105 MILES...165 KM
TO THE NORTH AND EAST OF THE CENTER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1011 MB...29.85 INCHES.


HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS WILL CONTINUE TO AFFECT HAITI
TODAY...EVEN IF CHANTAL LOSES ITS STATUS AS A TROPICAL CYCLONE. THE
LIKELIHOOD OF TROPICAL STORM CONDITIONS IN THE BAHAMAS AND THE
TURKS AND CAICOS ISLANDS IS DECREASING.

STORM SURGE...LOCALIZED COASTAL FLOODING IS POSSIBLE IN AREAS OF
ONSHORE FLOW ALONG PORTIONS OF THE SOUTH COAST OF HISPANIOLA.

RAINFALL...CHANTAL IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS
2 TO 4 INCHES OVER HISPANIOLA...CENTRAL AND EASTERN CUBA...AND THE
SOUTHEASTERN BAHAMAS. ISOLATED MAXIMUM AMOUNTS OF 6 INCHES ARE
POSSIBLE ACROSS SOUTHERN PORTIONS OF HISPANIOLA.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...500 PM EDT.

$$
FORECASTER AVILA
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#3067 Postby Evil Jeremy » Wed Jul 10, 2013 12:51 pm

DATA FROM A RECONNAISSANCE PLANE CURRENTLY INVESTIGATING
CHANTAL SUGGEST THAT THE CYCLONE IS DEGENERATING INTO A TROPICAL
WAVE.

Looking more and more likely that Chantal will be declared dead at 5pm.
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#3068 Postby artist » Wed Jul 10, 2013 12:53 pm

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#3069 Postby Janie2006 » Wed Jul 10, 2013 1:16 pm

Yah, heading west at nearly 30 mph, no wonder she can't keep anything going, it's like having a guillotine following her around.
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Re: ATL: CHANTAL - Models

#3070 Postby Pearl River » Wed Jul 10, 2013 1:18 pm

Here's a little more information about NAVGEM. I hope you can find it useful.

http://www.wcrp-climate.org/WGNE/BlueBook/2013/individual-articles/06_Reynolds_Carolyn_NAVGEM_bluebook.pdf
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#3071 Postby artist » Wed Jul 10, 2013 1:18 pm

000
URNT11 KNHC 101807
97779 18034 40172 70319 57900 15029 58589 /4590
RMK AF301 0503A CHANTAL OB 13
LAST REPORT
;
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Re: Re:

#3072 Postby Blown Away » Wed Jul 10, 2013 1:19 pm

artist wrote:
floridasun78 wrote:what hightest wind report by plane?

36 knots by SFMR in the last hour or so.

Finding the strongest winds near 17N/72W
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Re: ATL: CHANTAL - Tropical Storm - Discussion

#3073 Postby ozonepete » Wed Jul 10, 2013 1:20 pm

Aric Dunn wrote:
SouthFloridawx wrote:If you look at this loop, you can see a circulation run into Hispaniola and that's where it is now.

[img]http://tropic.ssec.wisc.edu/real-time/mimic-tpw/natl/anim/latest72hrs.gif[img]



I was wondering it that had occurred. may have to watch the north of Hispaniola over the next couple days as the energy splits..


I'm more and more thinking this split last night just as RECON was leaving. The low level center ripped westward and the mid-level went more wnw. The low level center disintegrated in the fast westerlies this morning and the main energy at mid-levels (the nose of the wave) is going to go right over Haiti and then eastern Cuba. If it redevelops the new LLC could quite possibly put down a little further east of the NHC track - between Haiti and Cuba or just north of eastern Cuba tonight. I'm thinking that because I think the models are in a classic problem area where they try to follow mid-levels and low-levels that have split. They don't do well in this area. Actually we don't either, lol. It's just wait and see. But I can't see any low-level LLC redeveloping so far west given that screaming easterly low-level environment.
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Re:

#3074 Postby Gustywind » Wed Jul 10, 2013 1:20 pm

Janie2006 wrote:Yah, heading west at nearly 30 mph, no wonder she can't keep anything going, it's like having a guillotine following her around.

Agree :), and that's already an outstanding performance from Chantal ( July TS) being able to maintained a such fast speed average of 40km/h at least 4 days :eek:. Lowest was 41 km/h , Monday 2PM near the 53W: http://www.nhc.noaa.gov/archive/2013/CHANTAL.shtml?

Difficult to have always energy that this speed!

That's what my untrained eyes have particulary seen especially with this one.
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#3075 Postby floridasun78 » Wed Jul 10, 2013 1:22 pm

is plane going back to base?
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Re:

#3076 Postby artist » Wed Jul 10, 2013 1:24 pm

floridasun78 wrote:is plane going back to base?

last recco said last report, so I guess so. Haven't seen any more hdobs come in, which usually let me know by altitude.
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#3077 Postby floridasun78 » Wed Jul 10, 2013 1:28 pm

on google map show plane not moving so look like was last report
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#3078 Postby artist » Wed Jul 10, 2013 1:29 pm

next flight takes off at 22:15, if not cancelled It is now 18:30z
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Re: ATL: CHANTAL - Tropical Storm - Discussion

#3079 Postby jlauderdal » Wed Jul 10, 2013 1:36 pm

ozonepete wrote:
Aric Dunn wrote:
SouthFloridawx wrote:If you look at this loop, you can see a circulation run into Hispaniola and that's where it is now.

[img]http://tropic.ssec.wisc.edu/real-time/mimic-tpw/natl/anim/latest72hrs.gif[img]



I was wondering it that had occurred. may have to watch the north of Hispaniola over the next couple days as the energy splits..


I'm more and more thinking this split last night just as RECON was leaving. The low level center ripped westward and the mid-level went more wnw. The low level center disintegrated in the fast westerlies this morning and the main energy at mid-levels (the nose of the wave) is going to go right over Haiti and then eastern Cuba. If it redevelops the new LLC could quite possibly put down a little further east of the NHC track - between Haiti and Cuba or just north of eastern Cuba tonight. I'm thinking that because I think the models are in a classic problem area where they try to follow mid-levels and low-levels that have split. They don't do well in this area. Actually we don't either, lol. It's just wait and see. But I can't see any low-level LLC redeveloping so far west given that screaming easterly low-level environment.


we have seen these energy splits in the past but before anyone gets too excited it has proven rather difficult to split it then get something to re-form but it has happened, didn't Jeanne or Frances come as a result of a split?
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Re: Re:

#3080 Postby ozonepete » Wed Jul 10, 2013 1:37 pm

Gustywind wrote:
Janie2006 wrote:Yah, heading west at nearly 30 mph, no wonder she can't keep anything going, it's like having a guillotine following her around.

Agree :), and that's already an outstanding performance from Chantal ( July TS) being able to maintained a such fast speed average of 40km/h at least 4 days :eek:. Lowest was 41 km/h , Monday 2PM near the 53W: http://www.nhc.noaa.gov/archive/2013/CHANTAL.shtml?

Difficult to have always energy that this speed!

That's what my untrained eyes have particulary seen especially with this one.


Ha, I wouldn't call either of you untrained! You two have been seeing things right as long as I've been around here. :wink: It is pretty amazing that Chantal stayed together as long as it did. I haven't looked at the numbers yet but I guess the mid-level winds were a little fast themselves and blowing wnw as well - this allowed the low and mid-levels to stay pretty close together even at the screaming low-level pace. Now the mid-level circulation is feeling the tug of that ULL over Florida and is moving more northerly while the low-level trades keep going west at a fast pace. In hindsight the mid-level flow would have to split off. I'm just wondering what will happen when the MLC gets back over water and the low-level winds slow down a little near Cuba. I'd only give it a 50/50 chance of regenerating.
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