* ATLANTIC SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC AVAILABLE * * JULIA AL112016 09/16/16 18 UTC * TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 V (KT) NO LAND 35 35 36 37 37 37 37 36 39 43 44 44 44 V (KT) LAND 35 35 36 37 37 37 37 36 39 43 44 44 44 V (KT) LGEM 35 35 35 34 34 34 35 36 38 43 49 DIS DIS Storm Type TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP N/A N/A SHEAR (KT) 24 28 23 20 16 20 17 12 9 13 11 N/A N/A SHEAR ADJ (KT) 1 2 0 0 1 -1 0 -4 -3 -1 -3 N/A N/A SHEAR DIR 264 278 292 302 316 338 351 326 234 234 225 N/A N/A SST (C) 28.9 29.0 29.0 29.0 29.0 28.9 28.8 28.5 28.3 28.1 28.1 N/A N/A POT. INT. (KT) 146 147 146 147 147 146 145 141 138 136 137 N/A N/A ADJ. POT. INT. 118 118 117 119 119 117 118 114 112 112 113 N/A N/A 200 MB T (C) -53.7 -53.7 -53.9 -53.9 -53.7 -53.5 -53.7 -53.6 -53.6 -53.9 -54.4 N/A N/A 200 MB VXT (C) 0.6 0.5 0.6 0.8 0.7 0.4 0.2 0.2 0.7 0.4 0.3 N/A N/A TH_E DEV (C) 7 8 8 7 9 9 9 8 9 8 9 N/A N/A 700-500 MB RH 46 45 44 46 44 45 50 55 55 52 54 N/A N/A MODEL VTX (KT) 13 12 11 11 11 9 8 7 7 8 7 LOST LOST 850 MB ENV VOR -48 -50 -64 -66 -55 -80 -39 -13 21 -5 -19 N/A N/A 200 MB DIV 4 -22 -45 -25 -3 -20 -8 14 17 -4 12 N/A N/A 700-850 TADV -6 -2 1 -3 0 0 0 -1 0 0 0 N/A N/A LAND (KM) 402 416 431 420 411 377 334 275 231 245 368 N/A N/A LAT (DEG N) 31.0 30.9 30.8 30.8 30.8 31.0 31.4 32.1 32.8 33.1 32.9 N/A N/A LONG(DEG W) 75.6 75.5 75.4 75.6 75.8 76.1 76.2 76.1 75.8 74.8 73.2 N/A N/A STM SPEED (KT) 2 1 1 2 2 2 3 4 4 5 7 N/A N/A HEAT CONTENT 32 32 32 33 35 37 37 39 37 26 22 0 0 FORECAST TRACK FROM OFCI INITIAL HEADING/SPEED (DEG/KT):110/ 3 CX,CY: 3/ 0 T-12 MAX WIND: 35 PRESSURE OF STEERING LEVEL (MB): 610 (MEAN=618) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 24.4 (MEAN=14.5) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 24.0 (MEAN=65.0) PRELIM RI PROB (DV .GE. 30 KT IN 24 HR): 0.6 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. 11. 11. 12. 13. 13. SST POTENTIAL 1. 1. 2. 3. 5. 7. 11. 13. 15. 17. 17. 18. VERTICAL SHEAR MAG 1. 2. 3. 4. 4. 3. 1. 0. -2. -3. -5. -7. VERTICAL SHEAR ADJ 0. 0. 0. 0. 0. 1. 2. 2. 3. 3. 3. 3. VERTICAL SHEAR DIR 0. 0. 0. 1. 1. 1. 1. 2. 3. 4. 5. 5. PERSISTENCE 0. -1. -1. -1. -1. -1. -1. -1. 0. 0. 0. 0. 200/250 MB TEMP. 0. 0. 0. 0. 0. 0. 0. -1. -1. 0. 0. 0. THETA_E EXCESS 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 700-500 MB RH 0. 0. 0. 0. 1. 1. 1. 1. 1. 1. 1. 1. MODEL VTX TENDENCY 0. -1. -1. -2. -5. -7. -10. -11. -11. -12. -13. -13. 850 MB ENV VORTICITY 0. -1. -1. -1. -2. -3. -3. -3. -4. -4. -5. -5. 200 MB DIVERGENCE 0. -1. -1. -1. -1. -1. -1. -1. -1. 0. 1. 2. 850-700 T ADVEC 0. 0. 0. 0. 0. 0. 0. -1. -1. -1. 0. 0. ZONAL STORM MOTION 0. 0. 0. -1. -1. -2. -2. -2. -3. -4. -4. -5. STEERING LEVEL PRES 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. -1. -1. -1. GOES PREDICTORS -1. -2. -2. -3. -4. -4. -4. -4. -3. -2. -1. -1. OCEAN HEAT CONTENT 0. 0. 0. 0. -1. -1. -1. -1. -1. -1. -1. -1. ---------------------------------------------------------- TOTAL CHANGE 0. 1. 2. 2. 2. 2. 1. 4. 8. 9. 9. 9. CURRENT MAX WIND (KT): 35. LAT, LON: 31.0 75.6 ** 2015 ATLANTIC RI INDEX AL112016 JULIA 09/16/16 18 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 3.2 850-200 MB SHEAR (KT) : 22.3 28.8 to 2.9 0.25 0.6 HEAT CONTENT (KJ/cm2) : 32.8 0.0 to 155.1 0.21 0.4 STD DEV OF IR BR TEMP : 24.4 37.5 to 2.9 0.38 0.9 2nd PC OF IR BR TEMP : -1.7 2.8 to -3.1 0.76 1.7 MAXIMUM WIND (kt) : 35.0 22.5 to 121.0 0.35 0.3 D200 (10**7s-1) : -18.2 -23.1 to 181.5 0.02 0.0 POT = MPI-VMAX (KT) : 83.1 28.4 to 139.1 0.49 0.7 % AREA WITH TPW <45 mm: 29.5 100.0 to 0.0 0.70 0.4 BL DRY-AIR FLUX (w/m2): 229.2 960.3 to -67.1 0.71 0.0 SHIPS Prob RI for 20kt/ 12hr RI threshold= 5% is 0.9 times sample mean ( 5.5%) SHIPS Prob RI for 25kt/ 24hr RI threshold= 12% is 1.0 times sample mean (11.6%) SHIPS Prob RI for 30kt/ 24hr RI threshold= 8% is 1.1 times sample mean ( 7.2%) SHIPS Prob RI for 35kt/ 24hr RI threshold= 0% is 0.0 times sample mean ( 4.2%) 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= 7% is 1.3 times sample mean ( 4.9%) SHIPS Prob RI for 55kt/ 48hr RI threshold= 10% is 2.0 times sample mean ( 5.1%) Matrix of RI probabilities --------------------------------------------------------------------- RI (kt / h) | 20/12 | 25/24 | 30/24 | 35/24 | 40/24 | 45/36 | 55/48 --------------------------------------------------------------------- SHIPS-RII: 5.0% 12.0% 8.2% 0.0% 0.0% 6.6% 10.1% Logistic: 0.3% 1.0% 0.4% 0.1% 0.0% 0.1% 0.5% Bayesian: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Consensus: 1.8% 4.3% 2.9% 0.0% 0.0% 2.2% 3.5% ## ANNULAR HURRICANE INDEX (AHI) AL112016 JULIA 09/16/16 18 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 AL112016 JULIA 09/16/2016 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 >24HR AGO (DSHIPS) 35 35 36 37 37 37 37 36 39 43 44 44 44 18HR AGO 35 34 35 36 36 36 36 35 38 42 43 43 43 12HR AGO 35 32 31 32 32 32 32 31 34 38 39 39 39 6HR AGO 35 29 26 25 25 25 25 24 27 31 32 32 32 NOW CURRENT INTENSITY < 83 KT IN 6HR INTENSITY IN 6HR < 83 KT IN 12HR INTENSITY IN 12HR < 83 KT