* ATLANTIC 2021 SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC AVAILABLE * * ZETA AL282020 10/29/20 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 85 82 77 70 60 28 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A V (KT) LAND 85 56 44 36 34 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A V (KT) LGEM 85 58 44 36 32 30 22 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Storm Type TROP 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 SHEAR (KT) 23 29 37 54 77 129 148 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SHEAR ADJ (KT) 10 13 13 13 8 -15 -32 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SHEAR DIR 243 259 257 251 247 247 249 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SST (C) 24.2 25.0 23.1 20.1 18.1 16.2 13.0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A POT. INT. (KT) 105 113 101 88 83 79 75 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ADJ. POT. INT. 102 111 99 85 80 77 73 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 200 MB T (C) -51.7 -52.0 -52.1 -52.0 -51.9 -52.0 -51.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 200 MB VXT (C) 0.5 0.6 0.5 0.1 -0.3 -0.3 0.0 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 0 0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 700-500 MB RH 58 55 55 52 54 53 49 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A MODEL VTX (KT) 22 20 20 22 24 18 19 LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST 850 MB ENV VOR 33 64 100 103 93 52 121 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 200 MB DIV 96 156 178 124 82 53 11 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 700-850 TADV 70 117 108 128 57 -115 -325 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A LAND (KM) 6 -234 -365 -230 37 204 124 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A LAT (DEG N) 30.2 32.6 34.9 37.0 39.0 42.3 45.6 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A LONG(DEG W) 89.9 86.8 83.6 79.0 74.3 63.6 52.8 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A STM SPEED (KT) 30 35 39 42 43 43 42 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 0 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): 25/ 25 CX,CY: 11/ 23 T-12 MAX WIND: 80 PRESSURE OF STEERING LEVEL (MB): 692 (MEAN=620) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 8.6 (MEAN=14.5) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 99.0 (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. -3. -5. -8. -14. -21. -29. -36. -42. -46. -50. -53. -57. -59. -60. -60. VERTICAL SHEAR MAG -2. -6. -12. -20. -42. -66. -74. -81. -84. -86. -91. -95.-100.-104.-110.-120. VERTICAL SHEAR ADJ -1. -2. -3. -3. -3. 3. 4. 4. 4. 4. 3. 3. 3. 3. 3. 2. VERTICAL SHEAR DIR 0. 0. 1. 1. 3. 4. 5. 6. 7. 8. 8. 10. 11. 11. 11. 11. PERSISTENCE 1. 1. 0. 0. 0. 0. 0. 0. -0. -0. -0. -0. -0. -0. -0. -0. 200/250 MB TEMP. -0. -1. -1. -2. -2. -3. -3. -3. -3. -3. -3. -4. -4. -3. -2. -2. THETA_E EXCESS -0. -1. -2. -2. -4. -4. -5. -5. -4. -3. -1. -1. 0. 1. 3. 5. 700-500 MB RH -0. -0. -0. -0. -0. 0. 0. -0. -0. -0. -0. -0. -0. -1. -1. -1. MODEL VTX TENDENCY -0. -1. 0. 1. -5. -5. -6. -7. -8. -9. -10. -11. -11. -11. -11. -11. 850 MB ENV VORTICITY 0. 0. 1. 1. 1. 2. 2. 2. 3. 3. 3. 3. 4. 4. 4. 5. 200 MB DIVERGENCE 0. 1. 2. 2. 3. 2. 3. 3. 3. 2. 1. -1. -1. -2. -3. -5. 850-700 T ADVEC -0. 0. 1. 2. 3. -4. -5. -4. -3. -2. -1. -0. -1. -0. -0. -0. ZONAL STORM MOTION 0. 0. -0. -0. -1. -1. -2. -2. -3. -5. -6. -6. -7. -7. -8. -8. STEERING LEVEL PRES -0. -0. -0. -0. -1. -1. -0. -1. -1. -1. -2. -2. -1. -1. -1. -1. DAYS FROM CLIM. PEAK -0. 0. 0. 0. -0. -0. -0. -0. -0. 0. 0. 0. 1. 2. 2. 2. GOES PREDICTORS 1. 1. 2. 2. 2. 2. 2. 2. 2. 2. 2. 3. 3. 3. 3. 2. 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 -3. -8. -15. -25. -57. -88.-100.-112.-119.-126.-132.-137.-143.-146.-151.-163. CURRENT MAX WIND (KT): 85. LAT, LON: 30.2 89.9 ** 2022 ATLANTIC RI INDEX AL282020 ZETA 10/29/20 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) : 5.0 -45.0 to 30.0 0.67 999.0 MULTI-LAYER SHEAR (KT) : 68.3 41.0 to 7.4 0.00 0.0 HEAT CONTENT (KJ/CM2) : 0.0 0.0 to 147.0 0.00 0.0 STD DEV OF IR BR TEMP : 8.6 33.3 to 3.1 0.82 999.0 MAXIMUM WIND (KT) : 85.0 25.0 to 125.0 0.62 999.0 POT = MPI-VMAX (KT) : 10.3 30.0 to 128.0 0.00 0.0 2nd PC OF IR BR TEMP : -1.1 2.6 to -2.7 0.71 999.0 D200 (10**7s-1) : 127.2 -28.0 to 171.0 0.78 999.0 BL DRY-AIR FLUX (W/M2) : 406.6 814.0 to -65.0 0.46 999.0 %area of TPW <45 mm upshear : 48.2 95.0 to 0.0 0.49 999.0 SHIPS Prob RI for 20kt/ 12hr RI threshold= 0% is 0.0 times climatological mean ( 4.9%) 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 ( 6.8%) 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= 999% is 999.0 times climatological mean ( 4.6%) SHIPS Prob RI for 55kt/ 48hr RI threshold= 999% is 999.0 times climatological mean ( 4.7%) SHIPS Prob RI for 65kt/ 72hr RI threshold= 999% is 999.0 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: 0.0% 0.0% 0.0% 0.0% 0.0% 999.0% 999.0% 999.0% Logistic: 1.5% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Bayesian: 0.6% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Consensus: 0.7% 0.0% 0.0% 0.0% 0.0% 999.0% 999.0% 999.0% ## ANNULAR HURRICANE INDEX (AHI) AL282020 ZETA 10/29/20 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 AL282020 ZETA 10/29/2020 00 UTC ** TIME(HR) 0-12 12-24(0-24) 24-36(0-36) 36-48(0-48) CLIMO(%) 10 0( 10) 0( 10) 0( 10) <-- 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) 85 56 44 36 34 DIS DIS DIS DIS DIS DIS DIS DIS DIS DIS DIS DIS 18HR AGO 85 84 72 64 62 28 28 28 28 28 28 28 28 28 28 28 28 12HR AGO 85 82 81 73 71 37 37 37 37 37 37 37 37 37 37 37 37 6HR AGO 85 79 76 75 73 39 39 39 39 39 39 39 39 39 39 39 39 NOW 85 76 70 67 66 32 32 32 32 32 32 32 32 32 32 32 32 IN 6HR INTENSITY IN 6HR < 83 KT IN 12HR INTENSITY IN 12HR < 83 KT