ATL: DANNY - Models
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Re:
NCSTORMMAN wrote:Safe to say it dies out as it goes west? No threat to US then? Is shear the issue?
If it tracks westward towards the Caribbean Sea, yes, it will be destroyed the persistent westerly shear.
I think its best chances for development & strengthening is during the next 72-96 hrs and it better stay on a low latitude course during the short term. In the long term it will have a better chance of surviving if it goes north of the Windward Islands away from the windshear over the Caribbean.
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Re:
gatorcane wrote:18Z Guidance with the some intensity models back up to CAT 3. Obviously they are overdoing it, but it is telling me maybe we will get a tropical storm out of this before all is said and done. The GFS-based intensity guidance not impressed:
Isn't the ship model the one that the NHC relies on for intensity related forecasting?
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Re: ATL: INVEST 96L- Models
Post by Levi Cowan

2h2 hours ago
Levi Cowan @TropicalTidbits
After poor init and inner nest losing 96L, HWRF parent domain likes genesis near same location as the Euro, ~40W, 10N

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- AtlanticWind
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Re: ATL: INVEST 96L- Models
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Re: ATL: INVEST 96L- Models
You could say that again. Is that a realistic remote possibility?AtlanticWind wrote:http://www.tropicaltidbits.com/analysis/models/?model=hwrf®ion=96L&pkg=mslp_wind&runtime=2015081618&fh=126&xpos=0&ypos=122
Hwrf really bullish
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- cycloneye
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Re: ATL: INVEST 96L- Models
HWRF scenario is overdone.
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Re: ATL: INVEST 96L- Models
abajan wrote:You could say that again. Is that a realistic remote possibility?AtlanticWind wrote:http://www.tropicaltidbits.com/analysis/models/?model=hwrf®ion=96L&pkg=mslp_wind&runtime=2015081618&fh=126&xpos=0&ypos=122
Hwrf really bullish
I would say it is a possibility, since it has other intensity model support , but maybe not likely.
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Re: ATL: INVEST 96L- Models
TROPICAL CYCLONE GUIDANCE MESSAGE
NWS NATIONAL HURRICANE CENTER MIAMI FL
0044 UTC MON AUG 17 2015
DISCLAIMER...NUMERICAL MODELS ARE SUBJECT TO LARGE ERRORS.
PLEASE REFER TO NHC OFFICIAL FORECASTS FOR TROPICAL CYCLONE
AND SUBTROPICAL CYCLONE INFORMATION.
ATLANTIC OBJECTIVE AIDS FOR
DISTURBANCE INVEST (AL962015) 20150817 0000 UTC
...00 HRS... ...12 HRS... ...24 HRS... ...36 HRS...
150817 0000 150817 1200 150818 0000 150818 1200
LAT LON LAT LON LAT LON LAT LON
BAMS 10.0N 29.2W 10.4N 31.5W 10.7N 34.1W 10.9N 37.0W
BAMD 10.0N 29.2W 10.2N 31.4W 10.5N 33.5W 10.9N 35.7W
BAMM 10.0N 29.2W 10.3N 31.4W 10.7N 33.7W 11.0N 35.9W
LBAR 10.0N 29.2W 10.1N 31.9W 10.3N 35.1W 10.7N 38.2W
SHIP 25KTS 32KTS 42KTS 50KTS
DSHP 25KTS 32KTS 42KTS 50KTS
...48 HRS... ...72 HRS... ...96 HRS... ..120 HRS...
150819 0000 150820 0000 150821 0000 150822 0000
LAT LON LAT LON LAT LON LAT LON
BAMS 11.1N 40.1W 11.1N 45.5W 10.7N 49.6W 10.5N 52.8W
BAMD 11.3N 37.8W 12.0N 41.4W 12.5N 44.5W 13.0N 47.9W
BAMM 11.2N 38.1W 11.6N 41.9W 11.8N 44.8W 12.0N 47.9W
LBAR 11.3N 41.1W 12.2N 46.1W 12.9N 49.7W 15.1N 51.7W
SHIP 56KTS 68KTS 77KTS 80KTS
DSHP 56KTS 68KTS 77KTS 80KTS
...INITIAL CONDITIONS...
LATCUR = 10.0N LONCUR = 29.2W DIRCUR = 270DEG SPDCUR = 11KT
LATM12 = 10.0N LONM12 = 27.0W DIRM12 = 270DEG SPDM12 = 13KT
LATM24 = 10.1N LONM24 = 24.4W
WNDCUR = 25KT RMAXWD = 60NM WNDM12 = 20KT
CENPRS = 1011MB OUTPRS = 1014MB OUTRAD = 150NM SDEPTH = M
RD34NE = 0NM RD34SE = 0NM RD34SW = 0NM RD34NW = 0NM
NWS NATIONAL HURRICANE CENTER MIAMI FL
0044 UTC MON AUG 17 2015
DISCLAIMER...NUMERICAL MODELS ARE SUBJECT TO LARGE ERRORS.
PLEASE REFER TO NHC OFFICIAL FORECASTS FOR TROPICAL CYCLONE
AND SUBTROPICAL CYCLONE INFORMATION.
ATLANTIC OBJECTIVE AIDS FOR
DISTURBANCE INVEST (AL962015) 20150817 0000 UTC
...00 HRS... ...12 HRS... ...24 HRS... ...36 HRS...
150817 0000 150817 1200 150818 0000 150818 1200
LAT LON LAT LON LAT LON LAT LON
BAMS 10.0N 29.2W 10.4N 31.5W 10.7N 34.1W 10.9N 37.0W
BAMD 10.0N 29.2W 10.2N 31.4W 10.5N 33.5W 10.9N 35.7W
BAMM 10.0N 29.2W 10.3N 31.4W 10.7N 33.7W 11.0N 35.9W
LBAR 10.0N 29.2W 10.1N 31.9W 10.3N 35.1W 10.7N 38.2W
SHIP 25KTS 32KTS 42KTS 50KTS
DSHP 25KTS 32KTS 42KTS 50KTS
...48 HRS... ...72 HRS... ...96 HRS... ..120 HRS...
150819 0000 150820 0000 150821 0000 150822 0000
LAT LON LAT LON LAT LON LAT LON
BAMS 11.1N 40.1W 11.1N 45.5W 10.7N 49.6W 10.5N 52.8W
BAMD 11.3N 37.8W 12.0N 41.4W 12.5N 44.5W 13.0N 47.9W
BAMM 11.2N 38.1W 11.6N 41.9W 11.8N 44.8W 12.0N 47.9W
LBAR 11.3N 41.1W 12.2N 46.1W 12.9N 49.7W 15.1N 51.7W
SHIP 56KTS 68KTS 77KTS 80KTS
DSHP 56KTS 68KTS 77KTS 80KTS
...INITIAL CONDITIONS...
LATCUR = 10.0N LONCUR = 29.2W DIRCUR = 270DEG SPDCUR = 11KT
LATM12 = 10.0N LONM12 = 27.0W DIRM12 = 270DEG SPDM12 = 13KT
LATM24 = 10.1N LONM24 = 24.4W
WNDCUR = 25KT RMAXWD = 60NM WNDM12 = 20KT
CENPRS = 1011MB OUTPRS = 1014MB OUTRAD = 150NM SDEPTH = M
RD34NE = 0NM RD34SE = 0NM RD34SW = 0NM RD34NW = 0NM
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Re: ATL: INVEST 96L- Models
Code: Select all
* ATLANTIC SHIPS INTENSITY FORECAST *
* IR SAT DATA AVAILABLE, OHC AVAILABLE *
* INVEST AL962015 08/17/15 00 UTC *
TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120
V (KT) NO LAND 25 28 32 37 42 50 56 62 68 74 77 79 80
V (KT) LAND 25 28 32 37 42 50 56 62 68 74 77 79 80
V (KT) LGE mod 25 27 30 33 37 44 53 59 64 71 79 86 88
Storm Type TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP
SHEAR (KT) 2 1 3 2 1 3 7 3 3 7 14 8 12
SHEAR ADJ (KT) 8 10 4 1 2 3 5 6 5 -1 -6 -5 -5
SHEAR DIR 137 18 28 28 360 194 219 188 112 111 152 165 189
SST (C) 28.0 27.9 27.7 27.6 27.4 27.4 27.5 27.7 27.8 27.7 27.7 27.8 27.8
POT. INT. (KT) 137 136 133 132 129 129 130 132 133 131 131 133 133
ADJ. POT. INT. 138 136 133 132 129 128 129 130 130 126 126 129 129
200 MB T (C) -52.8 -53.2 -53.1 -52.8 -52.8 -53.2 -53.1 -53.4 -53.1 -53.3 -53.2 -53.4 -53.2
TH_E DEV (C) 7 7 7 7 7 7 7 7 6 7 8 8 9
700-500 MB RH 64 65 65 66 67 62 63 62 63 56 50 45 41
MODEL VTX (KT) 5 5 5 6 6 6 7 7 8 8 9 10 10
850 MB ENV VOR 58 48 46 41 36 34 28 35 50 52 51 47 36
200 MB DIV 62 76 63 63 71 70 121 44 29 -3 -6 -29 -40
700-850 TADV -3 -4 -4 -4 -6 -5 -8 -8 -11 -7 -1 0 -1
LAND (KM) 1374 1481 1588 1700 1813 1846 1641 1458 1324 1205 1120 1029 930
LAT (DEG N) 10.0 10.2 10.3 10.5 10.7 11.0 11.2 11.4 11.6 11.7 11.8 11.9 12.0
LONG(DEG W) 29.2 30.3 31.4 32.5 33.7 35.9 38.1 40.2 41.9 43.5 44.8 46.3 47.9
STM SPEED (KT) 11 11 11 11 11 11 10 9 8 7 7 8 8
HEAT CONTENT 16 15 15 15 16 21 18 12 12 16 18 20 27
FORECAST TRACK FROM BAMM INITIAL HEADING/SPEED (DEG/KT):270/ 11 CX,CY: -10/ 0
T-12 MAX WIND: 20 PRESSURE OF STEERING LEVEL (MB): 563 (MEAN=624)
GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 14.4 (MEAN=14.5)
% GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 62.0 (MEAN=65.0)
INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE
6 12 18 24 36 48 60 72 84 96 108 120
----------------------------------------------------------
SAMPLE MEAN CHANGE 1. 2. 3. 4. 6. 8. 9. 11. 12. 12. 13. 14.
SST POTENTIAL 0. 0. 1. 2. 6. 11. 17. 22. 26. 28. 30. 31.
VERTICAL SHEAR MAG 1. 3. 4. 6. 9. 12. 14. 16. 17. 16. 15. 14.
VERTICAL SHEAR ADJ -1. -1. -1. -1. -2. -3. -4. -4. -4. -2. -1. -1.
VERTICAL SHEAR DIR 0. 1. 2. 2. 3. 1. 0. 1. 2. 2. 1. 0.
PERSISTENCE 1. 1. 2. 2. 2. 2. 2. 1. 1. 1. 0. 0.
200/250 MB TEMP. 0. 0. 0. 0. -1. -1. -1. -1. 0. 0. 0. 0.
THETA_E EXCESS 0. -1. -1. -2. -2. -3. -4. -6. -8. -9. -9. -10.
700-500 MB RH 0. 0. 0. -1. -1. -1. -2. -2. -2. -2. -1. -1.
MODEL VTX TENDENCY 0. 0. 0. 0. 0. 0. 0. 1. 1. 1. 2. 1.
850 MB ENV VORTICITY 0. 0. 0. 1. 1. 1. 1. 1. 1. 2. 2. 2.
200 MB DIVERGENCE 0. 1. 1. 1. 2. 4. 4. 4. 3. 2. 1. 1.
850-700 T ADVEC 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 1. 1.
ZONAL STORM MOTION 0. 0. 0. 1. 1. 1. 1. 2. 2. 2. 2. 2.
STEERING LEVEL PRES 0. 0. 0. 0. 0. 1. 0. 1. 1. 1. 1. 0.
DAYS FROM CLIM. PEAK 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
GOES PREDICTORS 0. 1. 1. 1. 0. 0. -1. -1. -2. -2. -1. -1.
OCEAN HEAT CONTENT 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
----------------------------------------------------------
TOTAL CHANGE 3. 7. 12. 17. 25. 31. 37. 43. 49. 52. 54. 55.
** 2013 ATLANTIC RI INDEX AL962015 INVEST 08/17/15 00 UTC **
( 30 KT OR MORE MAX WIND INCREASE IN NEXT 24 HR)
12 HR PERSISTENCE (KT): 5.0 Range:-49.5 to 33.0 Scaled/Wgted Val: 0.7/ 1.9
850-200 MB SHEAR (KT) : 1.9 Range: 28.8 to 2.9 Scaled/Wgted Val: 1.0/ 1.2
STD DEV OF IR BR TEMP : 14.4 Range: 37.5 to 2.9 Scaled/Wgted Val: 0.7/ 0.9
850-700 MB REL HUM (%): 75.2 Range: 43.2 to 93.5 Scaled/Wgted Val: 0.6/ 0.8
POT = MPI-VMAX (KT) : 108.9 Range: 28.4 to 139.1 Scaled/Wgted Val: 0.7/ 0.5
Heat content (KJ/cm2) : 15.4 Range: 0.0 to 155.1 Scaled/Wgted Val: 0.1/ 0.0
D200 (10**7s-1) : 67.0 Range:-23.1 to 181.5 Scaled/Wgted Val: 0.4/ 0.2
% area w/pixels <-30 C: 46.0 Range: 15.3 to 100.0 Scaled/Wgted Val: 0.4/ 0.1
Prob of RI for 25 kt RI threshold= 43% is 3.6 times the sample mean(11.9%)
Prob of RI for 30 kt RI threshold= 28% is 3.7 times the sample mean( 7.6%)
Prob of RI for 35 kt RI threshold= 17% is 3.6 times the sample mean( 4.6%)
Prob of RI for 40 kt RI threshold= 11% is 3.7 times the sample mean( 3.0%)
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Is the GFS having feedback issues? It seems to pull a second low to the east almost out of nowhere.
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The above post is not official and should not be used as such. It is the opinion of the poster and may or may not be backed by sound meteorological data. It is not endorsed by any professional institution or storm2k.org. For official information, please refer to the NHC and NWS products.
Re: ATL: INVEST 96L- Models
If you thought the 18z HWRF was off it's rocker, the 00z has this at 70kt / 975mb by 72 hours.
End of the run, fluctuates from 75-85 knots at 965mb for the last day and a half:

End of the run, fluctuates from 75-85 knots at 965mb for the last day and a half:

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Re: ATL: INVEST 96L- Models

BTW, the 0z Euro dropped development with 96L, not surprising.
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