* GFS version * * ATLANTIC 2021 SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC AVAILABLE * * WANDA AL212021 11/07/21 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 35 34 36 39 40 32 27 23 22 25 25 25 22 17 15 N/A N/A V (KT) LAND 35 34 36 39 40 32 27 23 22 25 25 25 22 17 15 N/A N/A V (KT) LGEM 35 33 32 33 33 30 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Storm Type TROP TROP 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 SHEAR (KT) 15 20 18 24 38 50 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) -4 -6 6 19 20 9 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SHEAR DIR 338 312 294 213 196 198 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SST (C) 22.3 21.8 21.2 18.8 18.1 13.9 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) 89 89 88 83 81 75 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. 79 80 82 78 77 73 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) -59.3 -59.8 -59.9 -59.7 -59.7 -58.2 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) 0.3 0.3 0.6 -0.1 -0.8 -1.4 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) 2 1 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 700-500 MB RH 48 53 48 42 40 38 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) 14 13 14 17 18 10 LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST 850 MB ENV VOR 19 3 -15 -44 -80 -108 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 16 26 31 56 53 20 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 -12 -29 -54 -68 -153 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A LAND (KM) 1657 1680 1720 1784 1510 743 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) 37.4 38.7 39.9 42.3 44.6 50.0 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) 37.4 35.7 34.0 30.9 27.8 20.4 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) 12 18 26 33 35 36 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 0 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): 50/ 6 CX,CY: 5/ 4 T-12 MAX WIND: 45 PRESSURE OF STEERING LEVEL (MB): 753 (MEAN=620) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 18.2 (MEAN=14.5) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 15.0 (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. 15. 15. 16. SST POTENTIAL -1. -2. -3. -3. -3. -2. -1. -1. -0. 0. -2. -3. -5. -6. -8. -9. VERTICAL SHEAR MAG 1. 3. 5. 6. 7. 3. -4. -10. -15. -20. -26. -31. -38. -43. -45. -45. VERTICAL SHEAR ADJ 0. 0. -1. -2. -4. -6. -8. -8. -8. -7. -6. -6. -6. -5. -5. -3. VERTICAL SHEAR DIR -0. 0. 0. 1. 1. 2. 3. 4. 4. 4. 5. 5. 6. 6. 6. 6. PERSISTENCE -2. -3. -4. -4. -2. -1. -1. -2. -1. -0. 0. 0. -1. -2. -3. -3. 200/250 MB TEMP. 2. 4. 7. 9. 12. 16. 19. 24. 28. 30. 32. 35. 36. 37. 36. 35. THETA_E EXCESS -0. -1. -1. -2. -4. -4. -5. -4. -4. -3. -1. -0. 0. 1. 3. 4. 700-500 MB RH 0. 0. 0. 1. 1. 2. 2. 3. 3. 3. 3. 3. 4. 4. 4. 3. MODEL VTX TENDENCY -0. -0. 1. 2. -5. -7. -8. -10. -11. -12. -13. -13. -14. -14. -13. -13. 850 MB ENV VORTICITY -0. -0. -0. -1. -2. -2. -3. -3. -4. -4. -5. -5. -5. -6. -6. -7. 200 MB DIVERGENCE -0. -0. -0. 0. -0. -0. -0. -0. -0. -0. -0. 0. 0. 0. 0. 0. 850-700 T ADVEC 0. -0. -0. -1. -4. -6. -7. -7. -4. -3. -1. -0. -1. -1. -0. -1. ZONAL STORM MOTION 0. 0. -0. -0. -1. -1. -1. -1. -2. -3. -4. -4. -4. -5. -5. -5. STEERING LEVEL PRES -0. -0. -0. -1. -1. -1. -0. -1. -2. -2. -3. -3. -2. -1. -2. -2. DAYS FROM CLIM. PEAK -0. 0. 0. 0. -0. -0. -0. -0. -0. 0. 0. 0. 1. 2. 2. 2. GOES PREDICTORS -1. -2. -2. -2. -2. -3. -4. -5. -5. -5. -5. -6. -6. -6. -6. -4. 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. 4. 4. 4. ------------------------------------------------------------------------------ TOTAL CHANGE -1. 1. 4. 5. -3. -8. -12. -13. -10. -10. -10. -13. -17. -20. -23. -23. CURRENT MAX WIND (KT): 35. LAT, LON: 37.4 37.4 ** 2021 ATLANTIC RI INDEX AL212021 WANDA 11/07/21 00 UTC ** (SHIPS-RII PREDICTOR TABLE for 30 KT OR MORE MAXIMUM WIND INCREASE IN NEXT 24-h) Predictor Value RI Predictor Range Scaled Value(0-1) % Contribution 12 HR PERSISTENCE (KT) : -10.0 -49.5 to 33.0 0.48 0.8 850-200 MB SHEAR (KT) : 23.0 30.1 to 2.3 0.25 0.2 HEAT CONTENT (KJ/CM2) : 0.0 0.0 to 151.8 0.00 0.0 STD DEV OF IR BR TEMP : 18.2 36.6 to 2.8 0.54 0.4 MAXIMUM WIND (KT) : 35.0 22.5 to 137.5 0.33 0.2 BL DRY-AIR FLUX (W/M2) : 173.8 895.4 to -55.0 0.76 0.5 2nd PC OF IR BR TEMP : 0.6 2.9 to -2.9 0.39 0.2 POT = MPI-VMAX (KT) : 44.3 28.3 to 146.3 0.14 0.0 D200 (10**7s-1) : 36.4 -29.7 to 185.9 0.31 0.1 %area of TPW <45 mm upshear : 99.8 100.0 to 0.0 0.00 0.0 SHIPS Prob RI for 20kt/ 12hr RI threshold= 2% is 0.3 times climatological mean ( 4.9%) SHIPS Prob RI for 25kt/ 24hr RI threshold= 3% is 0.3 times climatological mean (10.9%) SHIPS Prob RI for 30kt/ 24hr RI threshold= 2% is 0.4 times climatological mean ( 6.8%) 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 ( 2.4%) 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 ( 4.7%) SHIPS Prob RI for 65kt/ 72hr RI threshold= 0% is 0.0 times climatological mean ( 5.3%) 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: 1.6% 3.3% 2.5% 0.0% 0.0% 0.0% 0.0% 0.0% Logistic: 0.3% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Bayesian: 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Consensus: 0.7% 1.1% 0.8% 0.0% 0.0% 0.0% 0.0% 0.0% DTOPS: 0.0% 2.0% 1.0% 0.0% 0.0% 0.0% 0.0% 0.0% ## ANNULAR HURRICANE INDEX (AHI) AL212021 WANDA 11/07/21 00 UTC ## ## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=3 NFAIL=4 ## ## 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 AL212021 WANDA 11/07/2021 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) 35 34 36 39 40 32 27 23 22 25 25 25 22 17 15 DIS DIS 18HR AGO 35 34 36 39 40 32 27 23 22 25 25 25 22 17 15 DIS DIS 12HR AGO 35 32 31 34 35 27 22 18 17 20 20 20 17 DIS DIS DIS DIS 6HR AGO 35 29 26 25 26 18 DIS DIS DIS DIS DIS DIS DIS DIS DIS DIS DIS NOW CURRENT INTENSITY < 83 KT IN 6HR INTENSITY IN 6HR < 83 KT IN 12HR INTENSITY IN 12HR < 83 KT