* ATLANTIC SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC AVAILABLE * * ERIKA AL052015 08/25/15 00 UTC * TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 V (KT) NO LAND 40 43 47 50 52 57 61 62 65 65 66 67 69 V (KT) LAND 40 43 47 50 52 57 61 62 65 65 66 67 69 V (KT) LGE mod 40 43 46 49 52 59 64 68 72 74 77 80 84 Storm Type TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP SHEAR (KT) 9 10 13 12 8 14 12 16 14 19 16 18 15 SHEAR ADJ (KT) 2 0 -5 -4 1 -2 1 -1 0 -1 0 -3 -3 SHEAR DIR 26 7 347 345 317 308 288 290 289 304 277 300 302 SST (C) 27.5 27.5 27.4 27.4 27.6 28.1 28.3 28.5 28.6 28.6 28.8 29.1 29.3 POT. INT. (KT) 133 132 131 131 134 140 142 145 147 147 149 153 155 ADJ. POT. INT. 134 133 131 130 133 139 140 141 142 142 140 139 138 200 MB T (C) -52.9 -53.1 -53.2 -52.9 -52.9 -53.1 -52.9 -53.1 -52.8 -53.2 -52.7 -53.1 -52.7 TH_E DEV (C) 8 8 9 10 10 11 12 12 12 12 12 12 12 700-500 MB RH 63 63 63 61 60 59 56 56 56 58 58 59 63 MODEL VTX (KT) 16 16 16 15 13 13 13 11 10 7 7 5 6 850 MB ENV VOR 68 63 51 31 14 -3 -13 -24 -20 -15 -18 -43 -40 200 MB DIV 19 20 8 15 9 12 8 -16 -7 8 21 -1 8 700-850 TADV -10 -9 -13 -18 -16 -4 -10 -4 -14 -5 -9 -11 -7 LAND (KM) 1213 1158 1113 1105 1001 789 669 365 73 84 62 167 242 LAT (DEG N) 14.4 xx.x xx.x xx.x xx.x xx.x xx.x xx.x xx.x xx.x xx.x xx.x xx.x LONG(DEG W) 46.9 xxx.x xxx.x xxx.x xxx.x xxx.x xxx.x xxx.x xxx.x xxx.x xxx.x xxx.x xxx.x STM SPEED (KT) 17 16 16 15 16 15 14 13 13 14 11 8 6 HEAT CONTENT 30 22 13 16 20 31 48 44 11 62 73 51 58 FORECAST TRACK FROM OFPI INITIAL HEADING/SPEED (DEG/KT):275/ 18 CX,CY: -17/ 2 T-12 MAX WIND: 35 PRESSURE OF STEERING LEVEL (MB): 476 (MEAN=624) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 22.7 (MEAN=14.5) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 59.0 (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 1. 1. 2. 3. 6. 9. 13. 16. 18. 20. 21. 21. VERTICAL SHEAR MAG 0. 1. 2. 3. 4. 4. 4. 4. 2. 2. 1. 1. VERTICAL SHEAR ADJ 0. 0. 0. 0. 1. 1. 1. 1. 1. 1. 1. 1. VERTICAL SHEAR DIR 0. 1. 1. 1. 1. 1. 0. 0. -1. -1. -2. -2. PERSISTENCE 1. 1. 2. 2. 2. 2. 1. 1. 1. 0. 0. 0. 200/250 MB TEMP. 0. 0. 0. 0. -1. -1. -1. -1. -1. -1. -1. -1. THETA_E EXCESS 0. 0. 0. 0. 0. 0. 0. 1. 1. 2. 2. 2. 700-500 MB RH 0. 0. 0. 0. -1. -1. -1. -1. -1. -1. -1. -1. MODEL VTX TENDENCY 0. 0. -1. -2. -3. -4. -6. -8. -10. -11. -12. -11. 850 MB ENV VORTICITY 0. 0. 1. 0. 0. 0. -1. -1. -2. -2. -3. -3. 200 MB DIVERGENCE 0. 0. 0. 0. -1. -1. -1. -2. -1. -1. -1. -1. 850-700 T ADVEC 0. 0. 0. 1. 1. 0. 0. 0. 0. 1. 1. 2. ZONAL STORM MOTION 0. 0. 1. 1. 2. 3. 3. 4. 4. 5. 6. 6. STEERING LEVEL PRES 0. 0. 1. 1. 1. 1. 1. 2. 2. 2. 1. 1. DAYS FROM CLIM. PEAK 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. GOES PREDICTORS 0. 0. -1. -1. -1. -1. -1. -1. -1. -1. 0. -1. OCEAN HEAT CONTENT 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. ---------------------------------------------------------- TOTAL CHANGE 3. 7. 10. 12. 17. 21. 22. 25. 25. 26. 27. 29. ** 2013 ATLANTIC RI INDEX AL052015 ERIKA 08/25/15 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) : 10.6 Range: 28.8 to 2.9 Scaled/Wgted Val: 0.7/ 0.8 STD DEV OF IR BR TEMP : 22.7 Range: 37.5 to 2.9 Scaled/Wgted Val: 0.4/ 0.6 850-700 MB REL HUM (%): 69.4 Range: 43.2 to 93.5 Scaled/Wgted Val: 0.5/ 0.6 POT = MPI-VMAX (KT) : 92.1 Range: 28.4 to 139.1 Scaled/Wgted Val: 0.6/ 0.4 Heat content (KJ/cm2) : 20.2 Range: 0.0 to 155.1 Scaled/Wgted Val: 0.1/ 0.0 D200 (10**7s-1) : 14.2 Range:-23.1 to 181.5 Scaled/Wgted Val: 0.2/ 0.1 % area w/pixels <-30 C: 48.0 Range: 15.3 to 100.0 Scaled/Wgted Val: 0.4/ 0.1 Prob of RI for 25 kt RI threshold= 19% is 1.6 times the sample mean(11.9%) Prob of RI for 30 kt RI threshold= 11% is 1.5 times the sample mean( 7.6%) Prob of RI for 35 kt RI threshold= 6% is 1.3 times the sample mean( 4.6%) Prob of RI for 40 kt RI threshold= 5% is 1.7 times the sample mean( 3.0%) ## ANNULAR HURRICANE INDEX (AHI) AL052015 ERIKA 08/25/15 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) ## ** PROBLTY OF AT LEAST 1 SCNDRY EYEWL FORMTN EVENT AL052015 ERIKA 08/25/2015 00 UTC ** TIME(HR) 0-12 12-24(0-24) 24-36(0-36) 36-48(0-48) CLIMO(%) 0 0( 0) 0( 0) 0( 0) <-- PROB BASED ON INTENSITY ONLY PROB(%) 0 0( 0) 0( 0) 0( 0) <-- FULL MODEL PROB (RAN NORMALLY)