Tropical Storm Bertha Model Runs
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- vacanechaser
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Re: Tropical Storm Bertha Model Runs
ok, anyone seen the 0z hurricane models??? i cant find them... they should be out by now right???
Jesse V. Bass III
http://www.vastormphoto.com
Hurricane Intercept Research Team
Jesse V. Bass III
http://www.vastormphoto.com
Hurricane Intercept Research Team
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Re: Tropical Storm Bertha Model Runs
They usually come out at 00:45, so they should be on their way.
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Re: Tropical Storm Bertha Model Runs
finally the SFWMD site is updated.. so here is the animation from 24hrs ago to the 18z

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- cycloneye
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Re: Tropical Storm Bertha Model Runs
Jesse,here they are.
582
WHXX01 KWBC 050057
CHGHUR
TROPICAL CYCLONE GUIDANCE MESSAGE
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0057 UTC SAT JUL 5 2008
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
TROPICAL CYCLONE BERTHA (AL022008) 20080705 0000 UTC
...00 HRS... ...12 HRS... ...24 HRS. .. ...36 HRS...
080705 0000 080705 1200 080706 0000 080706 1200
LAT LON LAT LON LAT LON LAT LON
BAMS 15.8N 32.6W 17.1N 36.1W 18.1N 39.5W 18.9N 43.5W
BAMD 15.8N 32.6W 17.0N 35.6W 18.2N 38.8W 19.1N 41.8W
BAMM 15.8N 32.6W 17.0N 35.9W 18.0N 39.3W 18.8N 42.9W
LBAR 15.8N 32.6W 16.7N 36.1W 18.1N 39.8W 19.1N 43.8W
SHIP 45KTS 46KTS 48KTS 53KTS
DSHP 45KTS 46KTS 48KTS 53KTS
...48 HRS... ...72 HRS... ...96 HRS. .. ..120 HRS...
080707 0000 080708 0000 080709 0000 080710 0000
LAT LON LAT LON LAT LON LAT LON
BAMS 19.9N 47.4W 21.3N 54.5W 22.7N 61.2W 24.7N 66.8W
BAMD 20.3N 44.7W 22.7N 47.7W 23.2N 47.8W 22.6N 47.7W
BAMM 19.8N 46.3W 21.6N 51.3W 23.0N 55.4W 24.5N 58.3W
LBAR 20.1N 47.4W 22.7N 51.9W 25.2N 51.8W 27.3N 47.6W
SHIP 57KTS 65KTS 66KTS 62KTS
DSHP 57KTS 65KTS 66KTS 62KTS
...INITIAL CONDITIONS...
LATCUR = 15.8N LONCUR = 32.6W DIRCUR = 280DEG SPDCUR = 18KT
LATM12 = 14.7N LONM12 = 29.0W DIRM12 = 296DEG SPDM12 = 18KT
LATM24 = 13.4N LONM24 = 26.5W
WNDCUR = 45KT RMAXWD = 30NM WNDM12 = 45KT
CENPRS = 1000MB OUTPRS = 1012MB OUTRAD = 180NM SDEPTH = D
RD34NE = 90NM RD34SE = 30NM RD34SW = 0NM RD34NW = 75NM


582
WHXX01 KWBC 050057
CHGHUR
TROPICAL CYCLONE GUIDANCE MESSAGE
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0057 UTC SAT JUL 5 2008
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
TROPICAL CYCLONE BERTHA (AL022008) 20080705 0000 UTC
...00 HRS... ...12 HRS... ...24 HRS. .. ...36 HRS...
080705 0000 080705 1200 080706 0000 080706 1200
LAT LON LAT LON LAT LON LAT LON
BAMS 15.8N 32.6W 17.1N 36.1W 18.1N 39.5W 18.9N 43.5W
BAMD 15.8N 32.6W 17.0N 35.6W 18.2N 38.8W 19.1N 41.8W
BAMM 15.8N 32.6W 17.0N 35.9W 18.0N 39.3W 18.8N 42.9W
LBAR 15.8N 32.6W 16.7N 36.1W 18.1N 39.8W 19.1N 43.8W
SHIP 45KTS 46KTS 48KTS 53KTS
DSHP 45KTS 46KTS 48KTS 53KTS
...48 HRS... ...72 HRS... ...96 HRS. .. ..120 HRS...
080707 0000 080708 0000 080709 0000 080710 0000
LAT LON LAT LON LAT LON LAT LON
BAMS 19.9N 47.4W 21.3N 54.5W 22.7N 61.2W 24.7N 66.8W
BAMD 20.3N 44.7W 22.7N 47.7W 23.2N 47.8W 22.6N 47.7W
BAMM 19.8N 46.3W 21.6N 51.3W 23.0N 55.4W 24.5N 58.3W
LBAR 20.1N 47.4W 22.7N 51.9W 25.2N 51.8W 27.3N 47.6W
SHIP 57KTS 65KTS 66KTS 62KTS
DSHP 57KTS 65KTS 66KTS 62KTS
...INITIAL CONDITIONS...
LATCUR = 15.8N LONCUR = 32.6W DIRCUR = 280DEG SPDCUR = 18KT
LATM12 = 14.7N LONM12 = 29.0W DIRM12 = 296DEG SPDM12 = 18KT
LATM24 = 13.4N LONM24 = 26.5W
WNDCUR = 45KT RMAXWD = 30NM WNDM12 = 45KT
CENPRS = 1000MB OUTPRS = 1012MB OUTRAD = 180NM SDEPTH = D
RD34NE = 90NM RD34SE = 30NM RD34SW = 0NM RD34NW = 75NM

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- cycloneye
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Re: Tropical Storm Bertha Model Runs
The 00:00 UTC SHIP Forecast:SHIP in this run has shear much less than in past runs thru 120 hours and that is why it has Bertha as a hurricane in the ladder part of run.
Code: Select all
* ATLANTIC SHIPS INTENSITY FORECAST *
* GOES/OHC INPUT INCLUDED *
* BERTHA AL022008 07/05/08 00 UTC *
TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120
V (KT) NO LAND 45 45 46 47 48 53 57 62 65 66 66 64 62
V (KT) LAND 45 45 46 47 48 53 57 62 65 66 66 64 62
V (KT) LGE mod 45 45 46 47 49 53 58 63 68 70 70 69 68
SHEAR (KTS) 14 11 8 7 12 8 12 13 17 19 20 20 12
SHEAR DIR 239 241 241 177 196 234 215 271 240 258 238 263 242
SST (C) 24.7 24.8 25.0 25.2 25.5 25.8 26.2 26.8 27.4 27.8 28.0 28.0 28.0
POT. INT. (KT) 106 106 108 109 112 115 118 123 130 135 137 137 137
ADJ. POT. INT. 104 104 105 107 110 112 115 118 123 125 126 126 125
200 MB T (C) -53.9 -54.2 -54.3 -53.9 -54.1 -54.7 -54.2 -54.6 -54.4 -54.5 -54.2 -54.7 -54.5
TH_E DEV (C) 5 5 5 5 6 6 7 8 9 9 10 9 10
700-500 MB RH 62 61 59 57 54 52 52 50 44 45 47 50 52
GFS VTEX (KT) 15 14 14 13 13 13 12 12 12 12 12 10 8
850 MB ENV VOR 108 103 102 106 107 90 77 67 30 9 -13 -39 -52
200 MB DIV 62 57 35 16 19 43 54 27 9 16 0 20 6
LAND (KM) 1622 1810 1999 2030 1917 1719 1556 1455 1323 1144 991 852 732
LAT (DEG N) 15.8 16.2 16.5 16.8 17.0 17.6 18.0 18.7 19.7 20.8 22.1 23.1 23.8
LONG(DEG W) 32.6 34.4 36.1 37.9 39.7 43.4 47.1 50.2 52.8 55.1 57.1 59.3 61.8
STM SPEED (KT) 18 17 17 17 18 18 16 14 13 11 11 12 11
HEAT CONTENT 0 0 0 0 0 0 4 19 26 33 34 30 28
FORECAST TRACK FROM OFCI INITIAL HEADING/SPEED (DEG/KT):280/ 18 CX,CY: -17/ 3
T-12 MAX WIND: 45 PRESSURE OF STEERING LEVEL (MB): 635 (MEAN=625)
GOES IR BRIGHTNESS TEMP. STD DEV. 100-300 KM RAD: 25.2 (MEAN=20.0)
% GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 39.0 (MEAN=68.6)
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. 10. 11. 12. 12. 13.
SST POTENTIAL 0. 0. -1. -1. 0. 1. 3. 5. 7. 8. 9. 9.
VERTICAL SHEAR 0. 1. 2. 2. 3. 5. 5. 5. 3. 2. 1. 1.
PERSISTENCE 0. -1. -1. -1. -1. -1. -1. -1. -1. -1. 0. 0.
200/250 MB TEMP. 0. 0. 0. 0. 1. 1. 2. 2. 2. 3. 3. 4.
THETA_E EXCESS 0. -1. -2. -2. -3. -4. -4. -5. -6. -7. -7. -7.
700-500 MB RH 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
GFS VORTEX TENDENCY 0. 0. -1. -1. -2. -3. -3. -4. -4. -4. -6. -8.
850 MB ENV VORTICITY 1. 1. 2. 2. 3. 4. 5. 5. 4. 4. 3. 2.
200 MB DIVERGENCE 0. 1. 1. 1. 1. 2. 2. 2. 2. 2. 2. 1.
ZONAL STORM MOTION 0. 0. 1. 1. 3. 3. 4. 5. 5. 6. 7. 8.
STEERING LEVEL PRES 0. 0. 0. 0. 0. 0. 0. 0. -1. -1. -1. -1.
DAYS FROM CLIM. PEAK 0. 0. 0. -1. -1. -2. -2. -2. -2. -3. -3. -4.
----------------------------------------------------------
SUB-TOTAL CHANGE 1. 2. 3. 5. 10. 14. 18. 21. 21. 22. 20. 19.
SATELLITE ADJUSTMENTS ----------------------------------------------------------
MEAN ADJUSTMENT 0. 0. 0. 0. -1. -1. -1. -1. -1. -1. -1. -2.
GOES IR STD DEV 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
GOES IR PIXEL COUNT 0. -1. -1. -1. -1. -1. 0. 1. 1. 1. 1. 0.
OCEAN HEAT CONTENT 0. 0. 0. 0. 0. 0. -1. -1. -1. -1. -1. -1.
----------------------------------------------------------
TOTAL ADJUSTMENT -1. -1. -1. -2. -2. -2. -2. -1. -1. -1. -1. -2.
----------------------------------------------------------
TOTAL CHANGE (KT) 0. 1. 2. 3. 8. 12. 17. 20. 21. 21. 19. 17.
** 2008 ATLANTIC RI INDEX AL022008 BERTHA 07/05/08 00 UTC **
( 25 KT OR MORE MAX WIND INCREASE IN NEXT 24 HR)
12 HR PERSISTENCE (KT): 0.0 Range:-45.0 to 30.0 Scaled/Wgted Val: 0.6/ 1.1
850-200 MB SHEAR (KT) : 10.5 Range: 35.1 to 3.2 Scaled/Wgted Val: 0.8/ 1.2
D200 (10**7s-1) : 37.8 Range:-20.0 to 149.0 Scaled/Wgted Val: 0.3/ 0.5
POT = MPI-VMAX (KT) : 60.7 Range: 25.1 to 130.7 Scaled/Wgted Val: 0.3/ 0.4
850-700 MB REL HUM (%): 76.2 Range: 56.0 to 88.0 Scaled/Wgted Val: 0.6/ 0.3
% area w/pixels <-30 C: 31.0 Range: 17.0 to 100.0 Scaled/Wgted Val: 0.2/ 0.0
STD DEV OF IR BR TEMP : 21.3 Range: 35.1 to 3.2 Scaled/Wgted Val: 0.4/ 0.6
Heat content (KJ/cm2) : 0.0 Range: 0.0 to 132.0 Scaled/Wgted Val: 0.0/ 0.0
Prob of RI for 25 kt RI threshold= 18% is 1.5 times the sample mean(12.3%)
Prob of RI for 30 kt RI threshold= 3% is 0.3 times the sample mean( 7.8%)
Prob of RI for 35 kt RI threshold= 1% is 0.3 times the sample mean( 4.5%)
## ANNULAR HURRICANE INDEX (AHI) AL022008 BERTHA 07/05/08 00 UTC ##
## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=4 NFAIL=3 ##
## AHI= 0 (AHI OF 100 IS BEST FIT TO ANN. STRUC., 1 IS MARGINAL, 0 IS NOT ANNULAR) ##
## ANNULAR INDEX RAN NORMALLY
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Re: Tropical Storm Bertha Model Runs
new image .. with the 00z bams..
deep bam, does a loop.. feel that ridge and pushes back south ..

deep bam, does a loop.. feel that ridge and pushes back south ..
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- cycloneye
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Re: Tropical Storm Bertha Model Runs
Well,for what its worth,this is the 00z NAM.Is that Bertha just east of the Leewards?


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- SouthFloridawx
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Re: Tropical Storm Bertha Model Runs
I remember listening to Mike Watkins before about the Bamd, Bamm and Bams. If they are spread apart, that is a good indication that the system will have problems in the future. I can't remember exactly what he called it.
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- AJC3
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Re: Tropical Storm Bertha Model Runs
SouthFloridawx wrote:I remember listening to Mike Watkins before about the Bamd, Bamm and Bams. If they are spread apart, that is a good indication that the system will have problems in the future. I can't remember exactly what he called it.
I like to call that the "poor man's shear forecast"
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Re: Tropical Storm Bertha Model Runs
00z farther west.. and same speed as 18z .. the east coast trough is weaker and ridge builds back it...
its going to leave it behind and not pick it up ..

its going to leave it behind and not pick it up ..

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Re: Tropical Storm Bertha Model Runs
not going to get caught up in one model run right now. I personally look to the EURO for track and the GFDL. Still a long way away......
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Re: Tropical Storm Bertha Model Runs
LOL, this run takes it on the same course as the last Bertha! Right into Wilmington! 

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Re: Tropical Storm Bertha Model Runs
ROCK wrote:not going to get caught up in one model run right now. I personally look to the EURO for track and the GFDL. Still a long way away......
not getting caught up.. the synoptics set up is very important since all the models are still trending west .. im going to watch every model and analyze them all..
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- 'CaneFreak
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Re:
Aric Dunn wrote:gfs.. landfall in south carolina to NC
http://www.nco.ncep.noaa.gov/pmb/nwprod ... loop.shtml
yep...right up into the Wilmington area...hmmmmmmm
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Re: Tropical Storm Bertha Model Runs
Duddy wrote:LOL, this run takes it on the same course as the last Bertha! Right into Wilmington!
now what are the odds of that happening?

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