* ATLANTIC SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC AVAILABLE * * MARIA AL152017 09/29/17 06 UTC * TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 V (KT) NO LAND 50 49 50 51 52 52 45 22 DIS DIS DIS DIS DIS V (KT) LAND 50 49 50 51 52 52 45 22 DIS DIS DIS DIS DIS V (KT) LGEM 50 49 49 49 50 48 41 30 21 DIS DIS DIS DIS Storm Type TROP TROP TROP TROP TROP EXTP EXTP EXTP EXTP N/A N/A N/A N/A SHEAR (KT) 4 7 11 14 18 25 28 46 75 N/A N/A N/A N/A SHEAR ADJ (KT) 1 0 -1 -2 1 7 12 31 22 N/A N/A N/A N/A SHEAR DIR 319 171 201 235 244 229 230 214 239 N/A N/A N/A N/A SST (C) 26.8 26.3 26.2 25.6 23.9 22.4 19.6 17.3 15.1 N/A N/A N/A N/A POT. INT. (KT) 125 121 121 116 104 96 85 81 77 N/A N/A N/A N/A ADJ. POT. INT. 110 109 110 107 96 89 81 77 74 N/A N/A N/A N/A 200 MB T (C) -51.2 -51.4 -51.3 -51.3 -51.4 -51.1 -50.9 -51.3 -50.2 N/A N/A N/A N/A 200 MB VXT (C) 0.2 0.2 0.1 0.3 0.4 0.5 0.6 -0.2 0.0 N/A N/A N/A N/A TH_E DEV (C) 2 2 3 2 1 0 0 0 0 N/A N/A N/A N/A 700-500 MB RH 44 44 41 40 39 40 30 22 23 N/A N/A N/A N/A MODEL VTX (KT) 25 25 27 27 28 29 27 17 8 LOST LOST LOST LOST 850 MB ENV VOR 73 88 65 68 43 27 0 -9 -50 N/A N/A N/A N/A 200 MB DIV 16 27 37 40 44 51 -5 -5 -13 N/A N/A N/A N/A 700-850 TADV -12 -20 -15 -3 -24 -56 -53 -94 -194 N/A N/A N/A N/A LAND (KM) 715 732 812 824 737 818 1315 1192 313 N/A N/A N/A N/A LAT (DEG N) 37.0 37.5 38.0 39.1 40.1 42.7 45.2 48.2 51.6 N/A N/A N/A N/A LONG(DEG W) 64.7 61.9 59.1 55.6 52.1 44.4 36.0 25.9 14.8 N/A N/A N/A N/A STM SPEED (KT) 19 23 26 29 30 32 35 39 39 N/A N/A N/A N/A HEAT CONTENT 7 18 0 0 0 0 0 0 0 0 0 0 0 FORECAST TRACK FROM OFCI INITIAL HEADING/SPEED (DEG/KT): 85/ 16 CX,CY: 16/ 1 T-12 MAX WIND: 55 PRESSURE OF STEERING LEVEL (MB): 766 (MEAN=618) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 21.5 (MEAN=14.5) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 44.0 (MEAN=65.0) PRELIM RI PROB (DV .GE. 55 KT IN 48 HR): 0.0 INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE 6 12 18 24 36 48 60 72 84 96 108 120 ---------------------------------------------------------- SAMPLE MEAN CHANGE 1. 2. 3. 4. 6. 8. 9. 10. 11. 12. 13. 13. SST POTENTIAL 0. 0. 0. -0. -2. -4. -6. -7. -7. -8. -8. -9. VERTICAL SHEAR MAG 1. 2. 4. 5. 6. 4. -0. -11. -16. -21. -26. -30. VERTICAL SHEAR ADJ 0. 0. 0. 0. -0. -1. -6. -10. -11. -11. -11. -11. VERTICAL SHEAR DIR 0. 0. 1. 1. 3. 5. 7. 9. 11. 12. 13. 15. PERSISTENCE -2. -2. -3. -3. -3. -3. -2. -2. -1. 0. 1. 1. 200/250 MB TEMP. -1. -1. -2. -2. -3. -4. -4. -5. -5. -5. -6. -6. THETA_E EXCESS -0. -1. -1. -1. -2. -2. -3. -4. -5. -6. -6. -7. 700-500 MB RH 0. 0. 0. 1. 1. 2. 4. 6. 7. 7. 6. 6. MODEL VTX TENDENCY -0. 1. 1. 2. 3. 0. -13. -25. -26. -27. -27. -27. 850 MB ENV VORTICITY 0. 0. 1. 1. 1. 1. 0. -0. -0. -0. -0. -0. 200 MB DIVERGENCE -0. -0. -0. -0. 0. -0. -0. -1. -1. -0. -0. 0. 850-700 T ADVEC 0. -0. -0. -0. -1. -3. -5. -9. -9. -10. -9. -9. ZONAL STORM MOTION 0. -0. -1. -1. -3. -4. -5. -5. -6. -8. -10. -10. STEERING LEVEL PRES -0. -0. -1. -1. -1. -1. -1. -2. -2. -2. -2. -2. DAYS FROM CLIM. PEAK -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. GOES PREDICTORS -1. -1. -2. -2. -2. -2. -2. -1. -1. -0. 0. -0. OCEAN HEAT CONTENT -0. -0. -0. -0. -0. -1. -1. -1. -1. -1. -1. -0. ---------------------------------------------------------- TOTAL CHANGE -1. 0. 1. 2. 2. -5. -28. -57. -62. -68. -72. -77. CURRENT MAX WIND (KT): 50. LAT, LON: 37.0 64.7 ** 2017 ATLANTIC RI INDEX AL152017 MARIA 09/29/17 06 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 -49.5 to 33.0 0.54 3.6 850-200 MB SHEAR (KT) : 10.9 30.1 to 2.9 0.71 1.9 HEAT CONTENT (KJ/cm2) : 5.0 0.0 to 156.2 0.03 0.1 2nd PC OF IR BR TEMP : -0.6 2.4 to -3.0 0.55 1.5 STD DEV OF IR BR TEMP : 21.5 36.6 to 2.8 0.45 1.3 MAXIMUM WIND (kt) : 50.0 22.5 to 121.0 0.77 1.1 POT = MPI-VMAX (KT) : 56.4 28.4 to 139.6 0.25 0.5 D200 (10**7s-1) : 32.8 -29.7 to 181.5 0.30 0.3 BL DRY-AIR FLUX (w/m2): 367.6 961.4 to -67.1 0.58 0.0 % AREA WITH TPW <45 mm: 49.8 100.0 to 0.0 0.50 0.1 SHIPS Prob RI for 20kt/ 12hr RI threshold= 4% is 0.8 times sample mean ( 5.4%) SHIPS Prob RI for 25kt/ 24hr RI threshold= 13% is 1.1 times sample mean (11.5%) SHIPS Prob RI for 30kt/ 24hr RI threshold= 10% is 1.4 times sample mean ( 7.4%) SHIPS Prob RI for 35kt/ 24hr RI threshold= 7% is 1.6 times sample mean ( 4.3%) SHIPS Prob RI for 40kt/ 24hr RI threshold= 0% is 0.0 times sample mean ( 2.8%) SHIPS Prob RI for 45kt/ 36hr RI threshold= 0% is 0.0 times sample mean ( 5.1%) SHIPS Prob RI for 55kt/ 48hr RI threshold= 0% is 0.0 times sample mean ( 5.3%) SHIPS Prob RI for 65kt/ 72hr RI threshold= 0% is 0.0 times sample mean ( 6.0%) 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: 4.5% 13.2% 10.2% 6.7% 0.0% 0.0% 0.0% 0.0% Logistic: 1.6% 2.0% 1.0% 0.4% 0.0% 0.1% 0.0% 0.0% Bayesian: 0.4% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Consensus: 2.1% 5.0% 3.7% 2.3% 0.0% 0.0% 0.0% 0.0% ## ANNULAR HURRICANE INDEX (AHI) AL152017 MARIA 09/29/17 06 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 AL152017 MARIA 09/29/2017 06 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 >24HR AGO (DSHIPS) 50 49 50 51 52 52 45 22 DIS DIS DIS DIS DIS 18HR AGO 50 49 50 51 52 52 45 22 DIS DIS DIS DIS DIS 12HR AGO 50 47 46 47 48 48 41 18 DIS DIS DIS DIS DIS 6HR AGO 50 44 41 40 41 41 34 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