* GFS version * * ATLANTIC 2020 SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC AVAILABLE * * EPSILON AL272020 10/26/20 00 UTC * TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168 V (KT) NO LAND 60 59 56 53 59 57 55 53 51 49 46 43 39 36 33 32 32 V (KT) LAND 60 59 56 53 59 57 55 53 51 49 46 43 39 36 33 32 32 V (KT) LGEM 60 58 57 57 57 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Storm Type EXTP EXTP EXTP EXTP EXTP N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SHEAR (KT) 13 21 20 15 25 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SHEAR ADJ (KT) 8 5 11 10 3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SHEAR DIR 208 195 201 209 175 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SST (C) 16.8 14.3 10.7 10.8 11.4 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A POT. INT. (KT) 80 76 73 73 73 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ADJ. POT. INT. 77 74 72 71 71 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 200 MB T (C) -56.3 -55.2 -53.5 -51.7 -52.1 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 200 MB VXT (C) 1.2 0.6 -0.1 0.4 2.7 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A TH_E DEV (C) 0 0 0 0 0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 700-500 MB RH 50 52 57 62 59 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A MODEL VTX (KT) 37 36 34 34 44 LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST 850 MB ENV VOR 172 205 271 356 329 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 200 MB DIV 92 76 57 1 76 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 700-850 TADV 0 -56 -2 12 10 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A LAND (KM) 865 1235 1408 1061 822 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A LAT (DEG N) 47.3 49.7 52.0 54.6 57.2 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A LONG(DEG W) 41.3 36.1 30.9 26.3 21.7 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A STM SPEED (KT) 41 41 39 37 37 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A HEAT CONTENT 0 0 0 0 0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A FORECAST TRACK FROM OFCI INITIAL HEADING/SPEED (DEG/KT): 60/ 40 CX,CY: 35/ 20 T-12 MAX WIND: 65 PRESSURE OF STEERING LEVEL (MB): 653 (MEAN=620) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 17.3 (MEAN=14.5) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 60.0 (MEAN=65.0) PRELIM RI PROB (DV .GE. 35 KT IN 36 HR): 0.0 INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE 6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168 ------------------------------------------------------------------------------ SAMPLE MEAN CHANGE 1. 2. 3. 4. 6. 8. 9. 10. 11. 12. 12. 13. 14. 14. 15. 16. SST POTENTIAL -2. -5. -7. -9. -11. -14. -18. -22. -25. -27. -29. -32. -34. -36. -37. -37. VERTICAL SHEAR MAG 0. 1. 2. 2. 2. 1. -0. -2. -3. -5. -7. -9. -11. -13. -13. -13. VERTICAL SHEAR ADJ -0. -1. -2. -2. -4. -5. -6. -7. -7. -6. -5. -5. -5. -4. -3. -2. VERTICAL SHEAR DIR 0. 0. 1. 1. 2. 3. 5. 6. 6. 7. 8. 9. 10. 10. 10. 10. PERSISTENCE -1. -2. -2. -2. -1. -1. -1. -1. -0. 0. 0. 0. -0. -1. -1. -1. 200/250 MB TEMP. 1. 1. 1. 2. 2. 2. 2. 3. 3. 4. 4. 3. 3. 2. 1. -0. THETA_E EXCESS -1. -1. -2. -3. -4. -4. -4. -4. -4. -3. -2. -2. -2. -1. -0. 1. 700-500 MB RH 0. 0. -0. -0. -0. -0. -1. -1. -1. -1. -1. -1. -1. -1. -1. -1. MODEL VTX TENDENCY -0. -1. -2. 4. 4. 5. 5. 5. 4. 4. 3. 2. 1. 0. -0. -1. 850 MB ENV VORTICITY 1. 1. 3. 4. 6. 8. 11. 12. 13. 15. 16. 18. 18. 19. 22. 22. 200 MB DIVERGENCE 0. 0. 0. 1. 1. 1. 1. 1. 1. 1. -0. -1. -1. -2. -2. -3. 850-700 T ADVEC 0. -0. -0. -0. -1. -1. -1. -1. -1. -1. -1. -0. -0. -0. -0. -0. ZONAL STORM MOTION 0. 0. -0. -0. -2. -4. -5. -6. -10. -13. -17. -18. -18. -19. -20. -21. STEERING LEVEL PRES -0. -0. -0. -0. -0. -0. -0. -0. -1. -1. -1. -1. -1. -0. -1. -1. DAYS FROM CLIM. PEAK -0. 0. 0. 0. 0. -0. -0. 0. 0. 1. 1. 1. 1. 2. 2. 2. GOES PREDICTORS -0. -0. -0. -0. -0. -0. -0. -0. 0. 0. 0. -0. -1. -1. -1. -1. OCEAN HEAT CONTENT 0. 0. 0. 0. 0. 0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. RI POTENTIAL -0. -1. -2. -3. -4. -4. -3. -2. -0. 1. 2. 3. 3. 3. 4. 4. ------------------------------------------------------------------------------ TOTAL CHANGE -1. -4. -7. -1. -3. -5. -7. -9. -11. -14. -17. -21. -24. -27. -28. -28. CURRENT MAX WIND (KT): 60. LAT, LON: 47.3 41.3 ** 2020 ATLANTIC RI INDEX AL272020 EPSILON 10/26/20 00 UTC ** (SHIPS-RII PREDICTOR TABLE for 30 KT OR MOREMAXIMUM WIND INCREASE IN NEXT 24-h) Predictor Value RI Predictor Range Scaled Value(0-1) % Contribution 12 HR PERSISTENCE (KT) : -5.0 -49.5 to 33.0 0.54 999.0 850-200 MB SHEAR (KT) : 18.6 30.1 to 2.3 0.41 999.0 HEAT CONTENT (KJ/CM2) : 0.0 0.0 to 151.8 0.00 0.0 STD DEV OF IR BR TEMP : 17.3 36.6 to 2.8 0.57 999.0 MAXIMUM WIND (KT) : 60.0 22.5 to 137.5 0.99 999.0 2nd PC OF IR BR TEMP : -1.1 2.9 to -2.9 0.70 999.0 BL DRY-AIR FLUX (W/M2) : 123.8 895.4 to -55.0 0.81 999.0 POT = MPI-VMAX (KT) : 13.0 27.5 to 139.6 0.00 0.0 D200 (10**7s-1) : 60.4 -29.7 to 185.9 0.42 999.0 %area of TPW <45 mm upshear : 81.8 100.0 to 0.0 0.18 999.0 SHIPS Prob RI for 20kt/ 12hr RI threshold= 0% is 0.0 times climatological mean ( 5.0%) SHIPS Prob RI for 25kt/ 24hr RI threshold= 0% is 0.0 times climatological mean (10.9%) SHIPS Prob RI for 30kt/ 24hr RI threshold= 0% is 0.0 times climatological mean ( 6.9%) SHIPS Prob RI for 35kt/ 24hr RI threshold= 0% is 0.0 times climatological mean ( 3.9%) SHIPS Prob RI for 40kt/ 24hr RI threshold= 0% is 0.0 times climatological mean ( 2.5%) SHIPS Prob RI for 45kt/ 36hr RI threshold= 0% is 0.0 times climatological mean ( 4.6%) SHIPS Prob RI for 55kt/ 48hr RI threshold= 0% is 0.0 times climatological mean ( 4.6%) SHIPS Prob RI for 65kt/ 72hr RI threshold= 999% is 999.0 times climatological mean ( 5.2%) Matrix of RI probabilities ------------------------------------------------------------------------------ RI (kt / h) | 20/12 | 25/24 | 30/24 | 35/24 | 40/24 | 45/36 | 55/48 |65/72 ------------------------------------------------------------------------------ SHIPS-RII: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 999.0% Logistic: 0.3% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 999.0% Bayesian: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 999.0% Consensus: 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 999.0% DTOPS: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% ## ANNULAR HURRICANE INDEX (AHI) AL272020 EPSILON 10/26/20 00 UTC ## ## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=1 NFAIL=6 ## ## 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 AL272020 EPSILON 10/26/2020 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) ** DSHIPS INTENSITY FORECAST ADJUSTED RELATIVE TO ONSET OF ERC WEAKENING PHASE ** TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168 >24HR AGO (DSHIPS) 60 59 56 53 59 57 55 53 51 49 46 43 39 36 33 32 32 18HR AGO 60 59 56 53 59 57 55 53 51 49 46 43 39 36 33 32 32 12HR AGO 60 57 56 53 59 57 55 53 51 49 46 43 39 36 33 32 32 6HR AGO 60 54 51 50 56 54 52 50 48 46 43 40 36 33 30 29 29 NOW CURRENT INTENSITY < 83 KT IN 6HR INTENSITY IN 6HR < 83 KT IN 12HR INTENSITY IN 12HR < 83 KT