* ATLANTIC SHIPS INTENSITY FORECAST * * IR SAT DATA PROXY USED, OHC AVAILABLE * * MARIA AL152017 09/27/17 12 UTC * TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 V (KT) NO LAND 60 59 56 53 50 47 45 44 39 29 DIS DIS DIS V (KT) LAND 60 59 56 53 50 47 45 44 39 29 DIS DIS DIS V (KT) LGEM 60 59 58 55 53 50 50 51 49 42 34 DIS DIS Storm Type TROP TROP TROP TROP TROP TROP TROP TROP TROP EXTP EXTP N/A N/A SHEAR (KT) 19 14 15 16 5 4 8 14 17 29 62 N/A N/A SHEAR ADJ (KT) -2 0 2 3 8 3 2 12 7 16 27 N/A N/A SHEAR DIR 299 289 304 334 350 255 211 198 220 219 239 N/A N/A SST (C) 26.1 25.9 25.7 26.0 26.2 26.3 26.4 25.7 19.9 19.9 16.1 N/A N/A POT. INT. (KT) 112 110 109 112 116 119 122 117 87 88 79 N/A N/A ADJ. POT. INT. 92 90 90 93 97 103 110 109 83 83 76 N/A N/A 200 MB T (C) -50.6 -49.8 -49.9 -50.2 -50.5 -50.2 -50.5 -50.1 -50.8 -50.9 -49.6 N/A N/A 200 MB VXT (C) 1.9 1.2 1.3 1.2 0.9 0.8 0.6 0.8 0.7 0.3 0.5 N/A N/A TH_E DEV (C) 5 7 6 5 3 3 2 2 0 0 0 N/A N/A 700-500 MB RH 59 58 58 58 56 47 42 39 37 28 21 N/A N/A MODEL VTX (KT) 37 38 36 35 33 31 29 29 28 24 14 LOST LOST 850 MB ENV VOR 14 2 -8 3 25 69 107 67 59 11 67 N/A N/A 200 MB DIV 37 12 -19 -36 0 25 12 52 49 3 -19 N/A N/A 700-850 TADV 10 5 0 -3 -3 -2 -15 10 -9 0 -181 N/A N/A LAND (KM) 281 306 325 394 452 602 699 773 647 1145 1183 N/A N/A LAT (DEG N) 35.4 35.8 36.1 36.3 36.4 36.8 37.6 39.3 42.1 45.6 49.6 N/A N/A LONG(DEG W) 72.8 72.5 72.2 71.4 70.6 67.4 62.6 56.2 48.1 38.1 26.7 N/A N/A STM SPEED (KT) 5 4 5 7 10 16 23 30 37 42 43 N/A N/A HEAT CONTENT 7 0 0 0 0 3 19 0 0 0 0 0 0 FORECAST TRACK FROM OFCI INITIAL HEADING/SPEED (DEG/KT): 5/ 5 CX,CY: 0/ 5 T-12 MAX WIND: 60 PRESSURE OF STEERING LEVEL (MB): 706 (MEAN=618) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 14.4 (MEAN=14.5) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 58.0 (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 -1. -3. -5. -6. -8. -8. -9. -11. -13. -15. -16. -17. VERTICAL SHEAR MAG 0. 1. 1. 2. 5. 6. 7. 6. 3. -4. -6. -8. VERTICAL SHEAR ADJ 0. 0. -0. -1. -1. -2. -3. -4. -6. -8. -8. -8. VERTICAL SHEAR DIR 0. 0. 0. 0. 1. 2. 4. 5. 7. 8. 9. 10. PERSISTENCE -0. -1. -1. -1. -1. -1. -1. -1. -0. 0. 0. 1. 200/250 MB TEMP. -0. -1. -1. -2. -3. -4. -5. -5. -6. -7. -8. -9. THETA_E EXCESS -0. -0. -0. -1. -1. -1. -2. -3. -4. -5. -5. -6. 700-500 MB RH -0. -0. -0. -0. -0. 0. 1. 2. 3. 4. 3. 3. MODEL VTX TENDENCY 0. -1. -2. -4. -7. -11. -12. -16. -22. -35. -35. -35. 850 MB ENV VORTICITY -0. -0. -0. -0. -0. 0. 1. 1. 1. 1. 1. 2. 200 MB DIVERGENCE -0. -0. -1. -1. -1. -1. -1. -1. -1. -1. -0. 0. 850-700 T ADVEC -0. 0. 0. -0. -0. -0. -1. -1. -1. -4. -3. -3. ZONAL STORM MOTION 0. -0. -0. -0. -1. -1. -1. -1. -2. -2. -3. -3. STEERING LEVEL PRES -0. -0. -0. -0. -1. -1. -1. -1. -1. -1. -1. -1. DAYS FROM CLIM. PEAK -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. GOES PREDICTORS -0. -0. -0. -0. -1. -1. -1. -1. -1. -0. -0. -0. OCEAN HEAT CONTENT -0. -0. -0. -0. -0. -1. -1. -1. -1. -1. -1. -0. ---------------------------------------------------------- TOTAL CHANGE -1. -4. -7. -10. -13. -15. -16. -21. -31. -58. -60. -63. CURRENT MAX WIND (KT): 60. LAT, LON: 35.4 72.8 ** 2017 ATLANTIC RI INDEX AL152017 MARIA 09/27/17 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 0.60 999.0 850-200 MB SHEAR (KT) : 13.9 30.1 to 2.9 0.60 999.0 HEAT CONTENT (KJ/cm2) : 1.4 0.0 to 156.2 0.01 999.0 2nd PC OF IR BR TEMP : -0.9 2.4 to -3.0 0.62 999.0 STD DEV OF IR BR TEMP : 999.0 36.6 to 2.8 999.00 999.0 MAXIMUM WIND (kt) : 60.0 22.5 to 121.0 0.97 999.0 POT = MPI-VMAX (KT) : 32.5 28.4 to 139.6 0.04 999.0 D200 (10**7s-1) : -1.2 -29.7 to 181.5 0.13 999.0 BL DRY-AIR FLUX (w/m2): 292.8 961.4 to -67.1 0.65 999.0 % AREA WITH TPW <45 mm: 36.6 100.0 to 0.0 0.63 999.0 SHIPS Prob RI for 20kt/ 12hr RI threshold= 999% is 999.0 times sample mean ( 5.4%) SHIPS Prob RI for 25kt/ 24hr RI threshold= 999% is 999.0 times sample mean (11.5%) SHIPS Prob RI for 30kt/ 24hr RI threshold= 999% is 999.0 times sample mean ( 7.4%) SHIPS Prob RI for 35kt/ 24hr RI threshold= 999% is 999.0 times sample mean ( 4.3%) SHIPS Prob RI for 40kt/ 24hr RI threshold= 999% is 999.0 times sample mean ( 2.8%) SHIPS Prob RI for 45kt/ 36hr RI threshold= 999% is 999.0 times sample mean ( 5.1%) SHIPS Prob RI for 55kt/ 48hr RI threshold= 999% is 999.0 times sample mean ( 5.3%) SHIPS Prob RI for 65kt/ 72hr RI threshold= 999% is 999.0 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: 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% Logistic: 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% Bayesian: 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% Consensus: 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% ## ANNULAR HURRICANE INDEX (AHI) AL152017 MARIA 09/27/17 12 UTC ## ## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=4 NFAIL=3 ## ## 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 09/27/2017 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) PC4 UNAVAIL...MODEL SKILL DEGRADED ** 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) 60 59 56 53 50 47 45 44 39 29 DIS DIS DIS 18HR AGO 60 59 56 53 50 47 45 44 39 29 DIS DIS DIS 12HR AGO 60 57 56 53 50 47 45 44 39 29 DIS DIS DIS 6HR AGO 60 54 51 50 47 44 42 41 36 26 DIS DIS DIS NOW CURRENT INTENSITY < 83 KT IN 6HR INTENSITY IN 6HR < 83 KT IN 12HR INTENSITY IN 12HR < 83 KT