ATL: TEN - Post-Tropical - Discussion

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SFLcane
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Re: ATL: INVEST 92L - Discussion

#761 Postby SFLcane » Sun Aug 20, 2017 1:09 pm

gatorcane wrote:I am leaning toward development but after it has moved past Florida recurving offshore the SE US. Not only is there some model support but seems storms like to develop with this type of track in years past especially once they get above 30N and out of the tropics.


This! Um yep we almost had a major hurricane up around 40n. Its the new MDR apparently :(
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Re: ATL: HARVEY - Recon

#762 Postby cycloneye » Sun Aug 20, 2017 1:13 pm

000
URNT15 KNHC 201810
AF302 0509A INVEST HDOB 19 20170820
180100 1504N 07654W 9774 00286 0094 +270 +243 083009 010 018 000 00
180130 1502N 07655W 9772 00288 0094 +266 +245 067007 008 018 000 03
180200 1501N 07655W 9774 00286 0094 +264 +245 069006 006 018 000 00
180230 1459N 07655W 9773 00286 0094 +265 +243 078007 007 018 000 00
180300 1458N 07656W 9773 00287 0094 +263 +241 071005 007 017 000 00
180330 1456N 07656W 9773 00287 0094 +265 +238 049006 006 019 000 00
180400 1455N 07656W 9772 00288 0095 +264 +237 042007 008 017 000 00
180430 1453N 07657W 9774 00286 0095 +264 +232 037005 007 019 000 00
180500 1452N 07657W 9772 00288 0096 +260 +239 034006 007 018 000 00
180530 1450N 07657W 9772 00288 0097 +258 +240 040006 007 018 000 00
180600 1448N 07658W 9773 00290 0098 +257 +241 030004 006 018 000 00
180630 1447N 07658W 9773 00290 0098 +258 +238 019006 007 018 000 00
180700 1445N 07658W 9774 00290 0099 +260 +235 035007 007 018 000 03
180730 1444N 07659W 9772 00291 0099 +260 +233 047008 009 017 000 00
180800 1442N 07659W 9773 00290 0099 +261 +221 045009 009 017 000 03
180830 1441N 07659W 9773 00291 0099 +266 +192 053009 009 017 000 00
180900 1439N 07700W 9772 00291 0099 +265 +215 052007 008 018 000 00
180930 1437N 07700W 9773 00291 0099 +263 +226 060007 008 018 000 00
181000 1436N 07700W 9773 00291 0099 +261 +229 084007 007 018 000 00
181030 1434N 07701W 9774 00290 0099 +263 +230 070006 006 017 001 00
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Re: ATL: HARVEY - Recon

#763 Postby cycloneye » Sun Aug 20, 2017 1:14 pm

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Re: ATL: HARVEY - Recon

#764 Postby cycloneye » Sun Aug 20, 2017 1:22 pm

0
URNT15 KNHC 201820
AF302 0509A INVEST HDOB 20 20170820
181100 1433N 07700W 9768 00295 0098 +266 +225 063004 005 016 000 00
181130 1431N 07700W 9778 00285 0098 +268 +222 067002 003 017 000 00
181200 1430N 07659W 9770 00293 0098 +272 +210 113002 002 017 000 00
181230 1428N 07659W 9773 00290 0098 +273 +200 147002 002 016 000 00
181300 1427N 07658W 9774 00290 0099 +271 +198 152001 002 018 000 00
181330 1425N 07658W 9770 00296 0101 +266 +211 117001 002 018 000 03
181400 1424N 07657W 9777 00290 0102 +259 +231 049002 002 016 000 00
181430 1422N 07657W 9773 00293 0102 +258 +231 350003 003 016 000 00
181500 1421N 07656W 9777 00288 0101 +260 +222 355003 004 016 000 03
181530 1419N 07656W 9769 00295 0100 +264 +210 007003 003 017 000 00
181600 1418N 07655W 9774 00290 0101 +262 +214 005003 003 016 000 00
181630 1416N 07655W 9775 00290 0101 +259 +216 359003 004 016 000 00
181700 1415N 07654W 9771 00295 0102 +259 +211 002003 004 017 000 00
181730 1413N 07654W 9774 00291 0101 +260 +206 010002 003 016 000 00
181800 1412N 07653W 9773 00292 0101 +258 +210 347002 002 016 000 03
181830 1410N 07653W 9772 00292 0102 +255 +213 006002 002 016 000 00
181900 1409N 07652W 9773 00292 0102 +255 +218 015002 004 018 000 00
181930 1407N 07652W 9777 00290 0103 +255 +219 065004 005 016 000 00
182000 1406N 07651W 9774 00292 0104 +255 +219 068006 007 017 000 00
182030 1404N 07651W 9774 00293 0104 +255 +220 067007 007 016 001 03
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Re: ATL: INVEST 92L - Discussion

#765 Postby LarryWx » Sun Aug 20, 2017 1:24 pm

From the well-respected and very knowledgeable Eric Webb at another BB:

"NHC has raised its odds of genesis to 30% the next 5 days, while wind shear remains low (5-10 KTS), sea surface temperatures are sufficient, and 92L continues to produce somewhat regular moderate-deep pulse convection, the main hinderance to genesis will be its merger with an upper level low that dove southward into the Bahamas the past day or two. 92L's coupling with this feature will make development difficult-very difficult at least for the next 3 days or so because 92L will now have to spend time and energy eroding the mid-upper level cold core of this ULL and contend with the dry/sinking air accompanying it with relative humidities around 30-40%... Development, if any will be slow to occur and doesn't appear likely until it merges with the tail end of a frontal boundary that will stall off the southeastern US coast late this week. Thereafter the steering flow yet again looks like it could direct this right out to sea as transients will keep diving into the eastern and central US, underneath a persistent high latitude blocking ridge over northern North America... Doesn't seem all too dissimilar from Gert."
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Re: ATL: HARVEY - Recon

#766 Postby cycloneye » Sun Aug 20, 2017 1:24 pm

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Re: ATL: INVEST 92L - Discussion

#767 Postby NDG » Sun Aug 20, 2017 1:30 pm

SFLcane wrote:
gatorcane wrote:I am leaning toward development but after it has moved past Florida recurving offshore the SE US. Not only is there some model support but seems storms like to develop with this type of track in years past especially once they get above 30N and out of the tropics.


This! Um yep we almost had a major hurricane up around 40n. Its the new MDR apparently :(


Just one hurricane which it came out of the tropics so far this season north of 30N which took advantage of the warm loop current and moved parallel to the mid and UL winds is not unusual to see.
Most of the tropical developments this year has been in the deep tropics unlike other years like 2012, we are not seeing them develop in the middle of the Atlantic MDR because of the continuing SAL outbreaks but as soon as they become less frequent like it usually does later in September we should see a few systems develop this year, IMO.
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Re: ATL: HARVEY - Recon

#768 Postby cycloneye » Sun Aug 20, 2017 1:35 pm

URNT15 KNHC 201830
AF302 0509A INVEST HDOB 21 20170820
182100 1403N 07650W 9773 00295 0104 +254 +226 072006 007 016 000 03
182130 1402N 07650W 9772 00295 0104 +255 +227 065006 006 017 000 03
182200 1400N 07649W 9775 00292 0104 +255 +222 058002 004 017 000 03
182230 1359N 07649W 9771 00296 0103 +255 +221 051001 002 017 000 00
182300 1357N 07648W 9774 00292 0103 +255 +222 117001 001 018 000 00
182330 1356N 07648W 9772 00293 0102 +255 +227 072001 001 017 000 00
182400 1354N 07647W 9773 00292 0101 +255 +228 100001 002 017 000 03
182430 1353N 07647W 9774 00293 0104 +255 +229 144002 003 018 000 00
182500 1351N 07646W 9772 00295 0104 +255 +230 139003 004 017 001 00
182530 1350N 07646W 9775 00292 0104 +256 +230 146004 005 018 000 00
182600 1348N 07646W 9774 00293 0104 +255 +228 148005 005 018 000 00
182630 1347N 07646W 9772 00295 0103 +255 +229 177003 005 018 000 00
182700 1345N 07646W 9777 00291 0103 +256 +233 178005 007 017 000 00
182730 1344N 07645W 9770 00297 0103 +258 +231 187006 007 018 000 00
182800 1342N 07645W 9773 00295 0104 +260 +226 190006 006 017 000 00
182830 1341N 07645W 9774 00295 0105 +259 +226 195006 006 017 000 00
182900 1339N 07644W 9774 00295 0105 +258 +226 191006 007 017 000 00
182930 1338N 07643W 9772 00297 0105 +257 +223 192007 008 017 000 00
183000 1337N 07642W 9772 00297 0106 +255 +225 185007 007 017 001 00
183030 1335N 07642W 9771 00297 0106 +255 +227 177007 007 017 000 00
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Re: ATL: HARVEY - Recon

#769 Postby cycloneye » Sun Aug 20, 2017 1:36 pm

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Re: ATL: INVEST 92L - Discussion

#770 Postby TheStormExpert » Sun Aug 20, 2017 1:39 pm

NDG wrote:
SFLcane wrote:
gatorcane wrote:I am leaning toward development but after it has moved past Florida recurving offshore the SE US. Not only is there some model support but seems storms like to develop with this type of track in years past especially once they get above 30N and out of the tropics.


This! Um yep we almost had a major hurricane up around 40n. Its the new MDR apparently :(


Just one hurricane which it came out of the tropics so far this season north of 30N which took advantage of the warm loop current and moved parallel to the mid and UL winds is not unusual to see.
Most of the tropical developments this year has been in the deep tropics unlike other years like 2012, we are not seeing them develop in the middle of the Atlantic MDR because of the continuing SAL outbreaks but as soon as they become less frequent like it usually does later in September we should see a few systems develop this year, IMO.

I would've thought these SAL Outbreaks would've already been MUCH less potent by August 20th. Either way there has indeed been an abundant amount of tropical systems at or south of 20N in the Atlantic but they all have been weak and short-lived. Clearly SAL isn't the only negative factor hindering tropical development so far this season, you also have shear from TUTT's and ULL's.
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Re: ATL: HARVEY - Recon

#771 Postby cycloneye » Sun Aug 20, 2017 1:41 pm

URNT15 KNHC 201840
AF302 0509A INVEST HDOB 22 20170820
183100 1334N 07641W 9777 00292 0105 +255 +230 172006 007 017 000 03
183130 1333N 07640W 9771 00298 0106 +255 +230 172005 006 017 000 00
183200 1331N 07640W 9774 00295 0106 +255 +230 176005 006 017 000 00
183230 1330N 07639W 9773 00296 0106 +256 +224 168004 005 017 000 00
183300 1329N 07638W 9773 00293 0104 +259 +218 173004 004 017 000 03
183330 1329N 07637W 9785 00285 0105 +259 +215 191006 006 016 000 00
183400 1329N 07635W 9770 00299 0106 +260 +214 190006 007 016 000 00
183430 1329N 07633W 9773 00297 0107 +260 +212 193007 007 015 000 00
183500 1329N 07632W 9776 00295 0107 +260 +214 198007 008 015 000 00
183530 1329N 07630W 9773 00297 0107 +259 +216 197008 008 015 000 00
183600 1329N 07629W 9774 00296 0107 +260 +213 193009 009 015 000 00
183630 1329N 07627W 9770 00298 0105 +258 +214 190009 009 015 000 00
183700 1329N 07625W 9776 00291 0104 +258 +217 188009 010 013 001 00
183730 1329N 07624W 9773 00296 0105 +261 +204 185007 009 014 000 00
183800 1329N 07622W 9772 00296 0105 +262 +207 177007 008 014 000 00
183830 1329N 07621W 9774 00295 0106 +260 +219 174009 010 015 000 00
183900 1329N 07619W 9769 00299 0106 +262 +214 173008 009 015 000 00
183930 1329N 07617W 9777 00292 0106 +260 +215 174006 007 017 000 00
184000 1329N 07616W 9770 00298 0105 +260 +214 178007 008 016 000 00
184030 1329N 07614W 9775 00293 0105 +259 +219 181007 008 016 000 00
$$
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Re: ATL: HARVEY - Recon

#772 Postby cycloneye » Sun Aug 20, 2017 1:43 pm

Nothing important yet found.

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Re: ATL: HARVEY - Recon

#773 Postby cycloneye » Sun Aug 20, 2017 1:51 pm

URNT15 KNHC 201850
AF302 0509A INVEST HDOB 23 20170820
184100 1329N 07613W 9777 00292 0106 +259 +220 179008 008 015 000 00
184130 1329N 07611W 9772 00298 0106 +264 +210 181011 011 016 000 00
184200 1329N 07609W 9773 00296 0105 +265 +210 188012 012 016 000 03
184230 1329N 07608W 9773 00295 0104 +266 +204 187013 013 016 000 00
184300 1329N 07606W 9777 00291 0103 +265 +204 190012 013 016 000 00
184330 1329N 07605W 9770 00297 0103 +265 +210 192012 013 016 000 00
184400 1329N 07603W 9770 00296 0103 +260 +216 201012 012 016 000 00
184430 1329N 07601W 9773 00293 0104 +259 +219 196012 012 016 000 00
184500 1329N 07600W 9774 00295 0104 +260 +218 185011 011 016 000 00
184530 1329N 07558W 9774 00295 0106 +257 +223 189011 011 017 000 00
184600 1329N 07557W 9772 00298 0106 +255 +228 189010 011 017 000 00
184630 1329N 07555W 9779 00291 0107 +256 +229 180009 010 016 000 00
184700 1329N 07553W 9770 00301 0107 +256 +225 185010 011 015 000 00
184730 1329N 07552W 9770 00301 0107 +259 +219 185010 011 015 000 00
184800 1329N 07550W 9774 00297 0108 +260 +222 183012 013 016 000 00
184830 1329N 07549W 9776 00295 0108 +257 +226 175011 011 016 000 00
184900 1329N 07547W 9773 00298 0108 +260 +227 175009 011 016 000 00
184930 1329N 07545W 9769 00302 0108 +259 +231 174009 009 016 000 00
185000 1329N 07544W 9772 00298 0107 +260 +231 176009 009 015 000 00
185030 1329N 07542W 9778 00293 0106 +265 +218 168010 011 015 000 00
$$
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Re: ATL: HARVEY - Recon

#774 Postby cycloneye » Sun Aug 20, 2017 1:53 pm

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Re: ATL: INVEST 92L - Discussion

#775 Postby NDG » Sun Aug 20, 2017 2:00 pm

TheStormExpert wrote:
NDG wrote:
SFLcane wrote:
This! Um yep we almost had a major hurricane up around 40n. Its the new MDR apparently :(


Just one hurricane which it came out of the tropics so far this season north of 30N which took advantage of the warm loop current and moved parallel to the mid and UL winds is not unusual to see.
Most of the tropical developments this year has been in the deep tropics unlike other years like 2012, we are not seeing them develop in the middle of the Atlantic MDR because of the continuing SAL outbreaks but as soon as they become less frequent like it usually does later in September we should see a few systems develop this year, IMO.

I would've thought these SAL Outbreaks would've already been MUCH less potent by August 20th. Either way there has indeed been an abundant amount of tropical systems at or south of 20N in the Atlantic but they all have been weak and short-lived. Clearly SAL isn't the only negative factor hindering tropical development so far this season, you also have shear from TUTT's and ULL's.


Unlike other years the TUTT has not been that strong if not absent in the eastern Caribbean most of the season so far, ULLs have all been retrograding westward so once a disturbance finds a good distance away from them development happens like it happened with Gert.
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Re: ATL: HARVEY - Recon

#776 Postby cycloneye » Sun Aug 20, 2017 2:03 pm

000
URNT15 KNHC 201900
AF302 0509A INVEST HDOB 24 20170820
185100 1329N 07541W 9770 00299 0106 +264 +219 165010 010 016 000 00
185130 1328N 07539W 9774 00295 0106 +261 +226 170009 010 016 000 00
185200 1328N 07538W 9776 00293 0105 +260 +228 168009 010 016 000 00
185230 1328N 07536W 9771 00298 0106 +260 +220 169010 012 016 000 00
185300 1328N 07534W 9773 00296 0105 +260 +218 164010 012 017 000 00
185330 1328N 07533W 9777 00292 0105 +260 +219 166010 010 016 000 00
185400 1328N 07531W 9771 00298 0105 +260 +221 166009 010 017 000 00
185430 1328N 07530W 9770 00298 0105 +260 +218 164011 012 015 000 00
185500 1328N 07528W 9774 00295 0106 +260 +216 160011 012 016 000 00
185530 1328N 07527W 9778 00292 0106 +260 +215 154012 013 015 000 00
185600 1328N 07525W 9772 00298 0106 +260 +212 153011 013 016 000 00
185630 1328N 07524W 9775 00295 0106 +260 +212 154011 012 016 000 00
185700 1328N 07522W 9774 00296 0106 +260 +214 158010 011 015 000 00
185730 1328N 07520W 9775 00295 0105 +262 +209 166011 011 014 000 00
185800 1328N 07519W 9772 00297 0106 +264 +205 171010 011 014 000 00
185830 1328N 07517W 9772 00296 0105 +265 +205 175009 009 013 000 03
185900 1328N 07516W 9778 00292 0106 +260 +211 168008 008 014 000 00
185930 1328N 07514W 9772 00296 0105 +260 +213 172009 010 013 000 00
190000 1328N 07513W 9774 00296 0106 +257 +216 168010 011 014 000 03
190030 1328N 07511W 9773 00296 0106 +255 +223 159010 011 014 000 00
$$
;
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Re: ATL: HARVEY - Recon

#777 Postby cycloneye » Sun Aug 20, 2017 2:05 pm

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Re: ATL: HARVEY - Recon

#778 Postby cycloneye » Sun Aug 20, 2017 2:12 pm

000
URNT15 KNHC 201910
AF302 0509A INVEST HDOB 25 20170820
190100 1328N 07509W 9773 00297 0106 +259 +222 157011 011 013 000 00
190130 1328N 07508W 9770 00298 0105 +260 +222 159011 011 016 000 00
190200 1328N 07506W 9774 00295 0106 +260 +225 162011 011 015 000 00
190230 1328N 07505W 9773 00296 0106 +260 +225 164011 011 013 001 00
190300 1328N 07503W 9774 00295 0106 +260 +220 166011 011 013 000 00
190330 1328N 07502W 9777 00293 0106 +261 +222 163011 011 015 000 00
190400 1328N 07500W 9774 00296 0106 +260 +228 161011 012 015 000 00
190430 1328N 07459W 9774 00295 0106 +260 +232 161010 010 012 001 00
190500 1329N 07457W 9769 00298 0105 +260 +232 159010 011 013 000 03
190530 1330N 07457W 9776 00295 0107 +260 +230 148010 011 009 002 03
190600 1331N 07458W 9774 00296 0106 +260 +228 145010 011 013 000 00
190630 1332N 07500W 9772 00297 0107 +260 +227 145011 011 014 000 00
190700 1333N 07501W 9773 00296 0106 +259 +227 140011 012 014 000 00
190730 1334N 07502W 9774 00295 0105 +258 +226 143012 013 012 001 00
190800 1336N 07503W 9773 00295 0105 +259 +225 144013 014 016 000 00
190830 1337N 07504W 9773 00295 0104 +259 +224 145014 014 014 000 00
190900 1338N 07506W 9773 00295 0103 +260 +221 149016 016 016 000 00
190930 1339N 07507W 9773 00293 0103 +263 +217 155017 017 016 000 00
191000 1340N 07508W 9774 00293 0103 +265 +214 153017 017 015 001 00
191030 1342N 07509W 9772 00295 0103 +262 +218 147016 016 015 001 00
$$
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Re: ATL: HARVEY - Recon

#779 Postby cycloneye » Sun Aug 20, 2017 2:15 pm

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Re: ATL: INVEST 92L - Discussion

#780 Postby JtSmarts » Sun Aug 20, 2017 2:18 pm

LarryWx wrote:From the well-respected and very knowledgeable Eric Webb at another BB:

"NHC has raised its odds of genesis to 30% the next 5 days, while wind shear remains low (5-10 KTS), sea surface temperatures are sufficient, and 92L continues to produce somewhat regular moderate-deep pulse convection, the main hinderance to genesis will be its merger with an upper level low that dove southward into the Bahamas the past day or two. 92L's coupling with this feature will make development difficult-very difficult at least for the next 3 days or so because 92L will now have to spend time and energy eroding the mid-upper level cold core of this ULL and contend with the dry/sinking air accompanying it with relative humidities around 30-40%... Development, if any will be slow to occur and doesn't appear likely until it merges with the tail end of a frontal boundary that will stall off the southeastern US coast late this week. Thereafter the steering flow yet again looks like it could direct this right out to sea as transients will keep diving into the eastern and central US, underneath a persistent high latitude blocking ridge over northern North America... Doesn't seem all too dissimilar from Gert."


I love Eric Webb, he knows his stuff.
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