* GFS version * * ATLANTIC 2020 SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC AVAILABLE * * BERTHA AL022020 05/27/20 18 UTC * TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168 V (KT) NO LAND 30 28 28 27 27 29 28 27 24 22 20 18 17 15 N/A N/A N/A V (KT) LAND 30 29 28 28 29 30 30 30 30 30 30 30 30 30 N/A N/A N/A V (KT) LGEM 30 29 28 28 29 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 TROP TROP 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) 16 16 24 29 31 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) 2 3 -1 1 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 SHEAR DIR 191 184 170 182 189 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) 24.6 23.6 22.2 18.4 18.4 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) 103 97 90 78 78 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. 91 87 82 73 72 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) -55.3 -55.5 -55.7 -56.0 -56.0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 200 MB VXT (C) -0.1 0.0 0.4 0.2 -0.1 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A TH_E DEV (C) 4 4 1 1 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 700-500 MB RH 65 65 64 69 70 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) 11 9 8 7 6 LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST 850 MB ENV VOR 1 4 -14 -10 41 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 41 44 21 27 50 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 19 30 25 20 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 LAND (KM) -80 -210 -333 -415 -481 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) 33.6 35.2 36.7 38.7 40.6 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) 80.2 80.4 80.5 80.3 80.2 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A STM SPEED (KT) 14 16 17 20 19 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):335/ 12 CX,CY: -4/ 11 T-12 MAX WIND: 40 PRESSURE OF STEERING LEVEL (MB): 758 (MEAN=620) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 20.0 (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 -0. -1. -2. -2. -1. 1. 3. 5. 7. 8. 8. 7. 6. 5. 4. 3. VERTICAL SHEAR MAG 1. 3. 5. 6. 7. 4. -1. -5. -9. -14. -18. -21. -25. -28. -29. -29. VERTICAL SHEAR ADJ -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. VERTICAL SHEAR DIR 0. 0. 0. 1. 1. 2. 3. 4. 4. 5. 5. 6. 7. 7. 7. 7. PERSISTENCE -2. -4. -4. -4. -2. -2. -2. -2. -1. -1. -0. -0. -1. -2. -3. -3. 200/250 MB TEMP. 0. 0. 1. 1. 2. 2. 2. 3. 3. 3. 4. 5. 6. 7. 8. 9. THETA_E EXCESS -0. -1. -1. -2. -2. -3. -3. -2. -3. -2. -1. -1. -1. -1. -0. 1. 700-500 MB RH -0. -0. -0. -1. -1. -2. -3. -4. -4. -5. -5. -4. -5. -5. -5. -4. MODEL VTX TENDENCY -1. -2. -3. -5. -6. -8. -10. -11. -13. -14. -14. -15. -15. -15. -14. -14. 850 MB ENV VORTICITY -0. -0. -0. -0. -1. -1. -1. -1. -1. -1. -2. -2. -2. -2. -2. -2. 200 MB DIVERGENCE 0. 0. -0. 0. 0. 0. 0. 0. 0. 0. -0. -0. -0. -0. -0. -1. 850-700 T ADVEC -0. 0. 0. 0. 1. 2. 3. 3. 2. 2. 1. 1. 1. 1. 0. 0. ZONAL STORM MOTION -0. -0. 0. 0. 0. 0. -0. -0. -0. -0. -1. -1. -1. -1. -1. -1. STEERING LEVEL PRES -0. -0. -0. -1. -1. -1. -1. -1. -2. -2. -3. -3. -2. -1. -2. -2. 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. -1. -1. -1. -1. -1. -1. -1. -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 -2. -2. -3. -3. -1. -2. -3. -6. -8. -10. -12. -13. -15. -17. -18. -16. CURRENT MAX WIND (KT): 30. LAT, LON: 33.6 80.2 ** 2020 ATLANTIC RI INDEX AL022020 BERTHA 05/27/20 18 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) : -10.0 -49.5 to 33.0 0.48 2.5 850-200 MB SHEAR (KT) : 23.1 30.1 to 2.3 0.25 0.5 HEAT CONTENT (KJ/CM2) : 0.0 0.0 to 151.8 0.00 0.0 STD DEV OF IR BR TEMP : 20.0 36.6 to 2.8 0.49 1.1 MAXIMUM WIND (KT) : 30.0 22.5 to 137.5 0.20 0.2 2nd PC OF IR BR TEMP : -0.2 2.9 to -2.9 0.54 0.7 BL DRY-AIR FLUX (W/M2) : 109.0 895.4 to -55.0 0.83 1.1 POT = MPI-VMAX (KT) : 50.9 27.5 to 139.6 0.21 0.1 D200 (10**7s-1) : 36.6 -29.7 to 185.9 0.31 0.1 %area of TPW <45 mm upshear : 0.0 100.0 to 0.0 1.00 0.1 SHIPS Prob RI for 20kt/ 12hr RI threshold= 2% is 0.4 times climatological mean ( 5.0%) SHIPS Prob RI for 25kt/ 24hr RI threshold= 8% is 0.7 times climatological mean (10.9%) SHIPS Prob RI for 30kt/ 24hr RI threshold= 6% is 0.9 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: 2.0% 7.5% 6.4% 0.0% 0.0% 0.0% 0.0% 999.0% Logistic: 1.0% 0.4% 0.1% 0.0% 0.0% 0.5% 0.3% 999.0% Bayesian: 0.5% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 999.0% Consensus: 1.2% 2.6% 2.2% 0.0% 0.0% 0.2% 0.1% 999.0% DTOPS: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% ## ANNULAR HURRICANE INDEX (AHI) AL022020 BERTHA 05/27/20 18 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 AL022020 BERTHA 05/27/2020 18 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) 30 29 28 28 29 30 30 30 30 30 30 30 30 30 DIS DIS DIS 18HR AGO 30 29 28 28 29 30 30 30 30 30 30 30 30 30 DIS DIS DIS 12HR AGO 30 27 26 26 27 28 28 28 28 28 28 28 28 28 DIS DIS DIS 6HR AGO 30 24 21 20 21 22 22 22 22 22 22 22 22 22 DIS DIS DIS NOW CURRENT INTENSITY < 83 KT IN 6HR INTENSITY IN 6HR < 83 KT IN 12HR INTENSITY IN 12HR < 83 KT