* GFS version * * ATLANTIC 2024 SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC AVAILABLE * * FRANCINE AL062024 09/10/24 12 UTC * TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168 V (KT) NO LAND 55 57 59 61 64 65 66 62 53 40 28 N/A N/A N/A N/A N/A N/A V (KT) LAND 55 57 59 61 64 57 37 30 28 27 27 N/A N/A N/A N/A N/A N/A V (KT) LGEM 55 56 59 61 63 63 36 30 28 27 27 N/A N/A N/A N/A N/A N/A Storm Type TROP TROP TROP TROP TROP TROP TROP EXTP EXTP EXTP EXTP N/A N/A N/A N/A N/A N/A SHEAR (KT) 2 4 16 27 32 42 54 54 30 31 39 N/A N/A N/A N/A N/A N/A SHEAR ADJ (KT) 1 1 2 6 6 7 -3 -8 -7 0 -4 N/A N/A N/A N/A N/A N/A SHEAR DIR 218 211 231 254 260 255 255 245 273 284 292 N/A N/A N/A N/A N/A N/A SST (C) 30.5 30.2 30.4 29.9 29.5 27.7 29.3 28.9 28.9 28.9 28.9 N/A N/A N/A N/A N/A N/A POT. INT. (KT) 170 171 172 168 161 134 158 150 148 146 145 N/A N/A N/A N/A N/A N/A 200 MB T (C) -49.7 -49.4 -49.2 -49.3 -49.0 -48.6 -48.8 -49.5 -50.9 -51.9 -52.6 N/A N/A N/A N/A N/A N/A 200 MB VXT (C) 0.6 0.6 0.7 0.7 0.9 1.4 1.5 1.7 0.9 0.2 -0.1 N/A N/A N/A N/A N/A N/A TH_E DEV (C) 0 5 6 5 4 6 1 3 0 3 0 N/A N/A N/A N/A N/A N/A 700-500 MB RH 71 65 61 56 58 56 49 46 42 45 51 N/A N/A N/A N/A N/A N/A MODEL VTX (KT) 19 20 20 23 26 26 28 25 21 15 11 LOST LOST LOST LOST LOST LOST 850 MB ENV VOR 7 28 28 15 19 20 19 23 -9 5 -9 N/A N/A N/A N/A N/A N/A 200 MB DIV 46 79 97 94 67 82 106 70 -3 2 -23 N/A N/A N/A N/A N/A N/A 700-850 TADV -2 -5 -3 10 14 18 50 37 0 2 -1 N/A N/A N/A N/A N/A N/A LAND (KM) 182 198 245 260 207 -19 -237 -469 -629 -702 -693 N/A N/A N/A N/A N/A N/A LAT (DEG N) 24.5 25.3 26.1 27.0 27.8 29.9 32.5 34.6 36.2 36.9 36.8 N/A N/A N/A N/A N/A N/A LONG(DEG W) 95.8 95.2 94.7 93.9 93.1 91.5 90.5 90.2 89.8 89.7 89.8 N/A N/A N/A N/A N/A N/A STM SPEED (KT) 7 9 10 11 12 13 12 9 6 1 1 N/A N/A N/A N/A N/A N/A HEAT CONTENT 85 82 95 66 51 7 4 4 4 4 4 N/A N/A N/A N/A N/A N/A FORECAST TRACK FROM OFCI INITIAL HEADING/SPEED (DEG/KT): 10/ 4 CX,CY: 1/ 4 T-12 MAX WIND: 55 PRESSURE OF STEERING LEVEL (MB): 583 (MEAN=620) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 25.8 (MEAN=14.5) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 66.0 (MEAN=65.0) PRELIM RI PROB (DV .GE. 35 KT IN 36 HR): 20.2 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. 0. 0. 0. 0. 0. 0. SST POTENTIAL 1. 2. 3. 4. 4. 4. 4. 3. 1. -1. 0. 0. 0. 0. 0. 0. VERTICAL SHEAR MAG 1. 1. 1. -0. -3. -7. -12. -15. -15. -17. 0. 0. 0. 0. 0. 0. VERTICAL SHEAR ADJ -0. -0. -0. -1. -2. -2. 0. 2. 2. 3. 0. 0. 0. 0. 0. 0. VERTICAL SHEAR DIR -0. -0. -0. -0. 0. 1. 2. 2. 3. 3. 0. 0. 0. 0. 0. 0. PERSISTENCE -0. -1. -1. -1. -0. -0. -0. -0. -0. 0. 0. 0. 0. 0. 0. 0. 200/250 MB TEMP. -1. -2. -2. -3. -5. -5. -6. -6. -6. -5. 0. 0. 0. 0. 0. 0. THETA_E EXCESS -0. -1. -1. -1. -2. -3. -4. -5. -5. -5. 0. 0. 0. 0. 0. 0. 700-500 MB RH -0. -0. -0. -1. -1. -1. -1. -0. 0. 0. 0. 0. 0. 0. 0. 0. MODEL VTX TENDENCY 0. 1. 2. 4. 5. 8. 5. -1. -11. -18. 0. 0. 0. 0. 0. 0. 850 MB ENV VORTICITY -0. -0. -0. -0. -0. -0. -0. -1. -1. -1. 0. 0. 0. 0. 0. 0. 200 MB DIVERGENCE 0. 1. 1. 1. 2. 2. 2. 2. 1. 1. 0. 0. 0. 0. 0. 0. 850-700 T ADVEC 0. -0. -0. 0. 0. 2. 3. 3. 2. 2. 0. 0. 0. 0. 0. 0. ZONAL STORM MOTION 0. 0. -0. -0. -0. -0. -1. -1. -1. -1. 0. 0. 0. 0. 0. 0. STEERING LEVEL PRES 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. DAYS FROM CLIM. PEAK -0. -0. -0. -0. -0. -0. 0. -0. -0. -0. 0. 0. 0. 0. 0. 0. GOES PREDICTORS -0. -0. -1. -1. 0. 1. 2. 2. 2. 2. 0. 0. 0. 0. 0. 0. OCEAN HEAT CONTENT -0. -0. -1. -1. 0. 0. 0. -0. -0. -0. 0. 0. 0. 0. 0. 0. RI POTENTIAL 1. 1. 2. 3. 5. 4. 3. 2. 1. -0. 0. 0. 0. 0. 0. 0. -------------------------------------------------------------------------------------------- TOTAL CHANGE 2. 4. 6. 9. 10. 11. 7. -2. -15. -27. 0. 0. 0. 0. 0. 0. CURRENT MAX WIND (KT): 55. LAT, LON: 24.5 95.8 ** 2024 ATLANTIC RI INDEX AL062024 FRANCINE 09/10/24 12 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) : 0.0 -49.5 to 33.0 0.60 3.8 MULTI-LAYER SHEAR (KT) : 28.7 46.9 to 6.8 0.45 1.5 HEAT CONTENT (KJ/CM2) : 75.8 0.0 to 155.1 0.49 1.3 STD DEV OF IR BR TEMP : 25.8 36.6 to 2.8 0.32 0.8 MAXIMUM WIND (KT) : 55.0 22.5 to 137.5 0.85 1.4 2nd PC OF IR BR TEMP : -0.3 2.9 to -3.0 0.54 0.7 BL DRY-AIR FLUX (W/M2) : 135.2 895.4 to -69.3 0.79 1.1 D200 (10**7s-1) : 76.6 -29.7 to 189.2 0.49 0.6 POT = MPI-VMAX (KT) : 98.5 27.0 to 143.0 0.62 0.5 %area of TPW <45 mm upshear : 0.9 109.2 to 0.0 0.99 -0.1 SHIPS Prob RI for 20kt/ 12hr RI threshold= 5% is 1.1 times climatological mean ( 4.9%) SHIPS Prob RI for 25kt/ 24hr RI threshold= 21% is 1.9 times climatological mean (10.9%) SHIPS Prob RI for 30kt/ 24hr RI threshold= 12% is 1.7 times climatological mean ( 6.8%) SHIPS Prob RI for 35kt/ 24hr RI threshold= 8% is 2.1 times climatological mean ( 3.9%) SHIPS Prob RI for 40kt/ 24hr RI threshold= 6% is 2.5 times climatological mean ( 2.4%) SHIPS Prob RI for 45kt/ 36hr RI threshold= 10% is 2.2 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: 5.4% 21.2% 11.7% 8.4% 6.0% 10.1% 0.0% 0.0% Logistic: 3.5% 7.2% 3.6% 0.8% 0.2% 0.2% 0.1% 0.0% Bayesian: 0.5% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Consensus: 3.1% 9.5% 5.1% 3.1% 2.1% 3.4% 0.0% 0.0% DTOPS: 10.0% 30.0% 19.0% 11.0% 6.0% 1.0% 0.0% 0.0% SDCON: 6.5% 19.7% 12.0% 7.0% 4.0% 2.2% 0% 0% ## ANNULAR HURRICANE INDEX (AHI) AL062024 FRANCINE 09/10/24 12 UTC ## ## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=2 NFAIL=5 ## ## 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 AL062024 FRANCINE 09/10/2024 12 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) 55 57 59 61 64 57 37 30 28 27 27 DIS DIS DIS DIS DIS DIS 18HR AGO 55 54 56 58 61 54 34 27 25 24 24 DIS DIS DIS DIS DIS DIS 12HR AGO 55 52 51 53 56 49 29 22 20 19 19 DIS DIS DIS DIS DIS DIS 6HR AGO 55 49 46 45 48 41 21 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