* GFS version * * EAST PACIFIC 2021 SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC AVAILABLE * * LINDA EP122021 08/20/21 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 35 33 31 30 29 26 22 16 N/A N/A N/A N/A N/A N/A N/A N/A N/A V (KT) LAND 35 33 31 30 29 26 22 16 N/A N/A N/A N/A N/A N/A N/A N/A N/A V (KT) LGEM 35 33 30 29 27 25 22 19 17 N/A N/A N/A N/A N/A N/A N/A N/A Storm Type TROP TROP TROP TROP TROP TROP TROP TROP TROP N/A N/A N/A N/A N/A N/A N/A N/A SHEAR (KT) 14 13 15 16 17 26 31 46 42 N/A N/A N/A N/A N/A N/A N/A N/A SHEAR ADJ (KT) 2 5 7 5 4 6 -1 -7 -2 N/A N/A N/A N/A N/A N/A N/A N/A SHEAR DIR 243 235 228 226 213 207 234 245 237 N/A N/A N/A N/A N/A N/A N/A N/A SST (C) 24.7 24.8 25.0 25.0 25.2 25.8 26.0 26.2 27.0 N/A N/A N/A N/A N/A N/A N/A N/A POT. INT. (KT) 111 112 113 113 115 121 123 126 135 N/A N/A N/A N/A N/A N/A N/A N/A 200 MB T (C) -52.2 -52.3 -52.4 -52.5 -52.7 -53.3 -54.2 -54.2 -54.7 N/A N/A N/A N/A N/A N/A N/A N/A 200 MB VXT (C) 0.7 0.8 0.8 0.7 0.3 -0.4 -0.6 -0.4 -0.5 N/A N/A N/A N/A N/A N/A N/A N/A TH_E DEV (C) 4 4 4 4 4 5 5 6 7 N/A N/A N/A N/A N/A N/A N/A N/A 700-500 MB RH 31 31 31 32 32 33 34 34 31 N/A N/A N/A N/A N/A N/A N/A N/A MODEL VTX (KT) 12 12 11 11 11 11 9 7 6 LOST LOST LOST LOST LOST LOST LOST LOST 850 MB ENV VOR 38 40 44 40 36 40 22 10 -13 N/A N/A N/A N/A N/A N/A N/A N/A 200 MB DIV 9 3 -7 6 12 -4 -3 -8 -5 N/A N/A N/A N/A N/A N/A N/A N/A 700-850 TADV -1 0 -1 -1 2 2 3 -4 -3 N/A N/A N/A N/A N/A N/A N/A N/A LAND (KM) 1056 926 796 682 569 370 204 61 45 N/A N/A N/A N/A N/A N/A N/A N/A LAT (DEG N) 19.9 20.0 20.1 20.2 20.3 20.5 20.6 20.7 20.9 N/A N/A N/A N/A N/A N/A N/A N/A LONG(DEG W) 144.7 146.0 147.2 148.3 149.4 151.4 153.2 155.4 158.2 N/A N/A N/A N/A N/A N/A N/A N/A STM SPEED (KT) 13 12 11 10 10 9 9 12 13 N/A N/A N/A N/A N/A N/A N/A N/A HEAT CONTENT 0 0 0 0 0 0 0 0 13 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):270/ 14 CX,CY: -13/ 0 T-12 MAX WIND: 40 PRESSURE OF STEERING LEVEL (MB): 715 (MEAN=587) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 6.3 (MEAN=14.5) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 0.0 (MEAN=65.0) PRELIM RI PROB (DV .GE. 35 KT IN 36 HR): 0.2 INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE 6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168 ------------------------------------------------------------------------------ SAMPLE MEAN CHANGE 0. 0. 1. 1. 1. 2. 1. 1. 0. -0. -1. -2. -2. -3. -4. -4. SST POTENTIAL 0. 1. 1. 1. 3. 6. 9. 12. 14. 15. 15. 13. 12. 11. 11. 10. VERTICAL SHEAR MAG 1. 1. 2. 2. 2. -1. -7. -16. -22. -26. -28. -29. -29. -31. -34. -36. VERTICAL SHEAR ADJ -0. -1. -1. -2. -3. -2. -1. -1. -0. -0. -0. -0. -0. -0. -0. -0. VERTICAL SHEAR DIR -0. -0. -0. -1. -1. -1. -1. -1. -2. -2. -2. -2. -2. -2. -2. -1. PERSISTENCE -1. -2. -2. -3. -2. -2. -2. -1. -1. -1. -1. -1. -1. -1. -1. -1. 200/250 MB TEMP. -0. -0. -0. -0. 0. 1. 2. 2. 2. 1. 0. -1. -3. -4. -5. -6. THETA_E EXCESS -0. -1. -1. -1. -2. -2. -2. -2. -3. -3. -3. -3. -3. -3. -4. -4. 700-500 MB RH -0. -0. -1. -1. -2. -2. -2. -3. -3. -3. -4. -4. -5. -6. -7. -10. MODEL VTX TENDENCY -0. -0. -1. -1. -1. -3. -6. -9. -9. -9. -9. -8. -7. -7. -6. -5. 850 MB ENV VORTICITY 0. 0. 0. 0. 0. -0. -0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 200 MB DIVERGENCE -0. -0. -1. -1. -1. -2. -3. -4. -4. -4. -4. -3. -2. -1. 0. 1. 850-700 T ADVEC -0. -0. -0. -0. -0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. ZONAL STORM MOTION 0. 0. 1. 1. 2. 3. 3. 3. 2. 2. 2. 2. 1. 1. 1. -0. STEERING LEVEL PRES 0. 0. 1. 1. 2. 2. 2. 2. 3. 3. 3. 3. 2. 2. 2. 1. DAYS FROM CLIM. PEAK 0. 0. 0. 0. 0. 1. 1. 1. 2. 2. 3. 3. 3. 4. 5. 5. GOES PREDICTORS -1. -1. -1. -1. -3. -6. -8. -9. -11. -12. -14. -14. -15. -14. -12. -12. OCEAN HEAT CONTENT -0. -0. -0. -0. -0. -1. -2. -1. -0. -0. 0. 1. 2. 3. 4. 6. RI POTENTIAL -0. -1. -2. -3. -4. -4. -3. -1. 1. 2. 4. 4. 4. 4. 4. 4. ------------------------------------------------------------------------------ TOTAL CHANGE -2. -4. -5. -6. -9. -13. -19. -27. -32. -36. -39. -41. -44. -45. -49. -52. CURRENT MAX WIND (KT): 35. LAT, LON: 19.9 144.7 ** 2021 E. Pacific RI INDEX EP122021 LINDA 08/20/21 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 POT = MPI-VMAX (KT) : 77.9 40.5 to 149.3 0.34 999.0 12 HR PERSISTENCE (KT) : -5.0 -22.0 to 44.0 0.26 999.0 D200 (10**7s-1) : 4.6 -33.0 to 159.5 0.20 999.0 850-200 MB SHEAR (KT) : 15.0 19.6 to 1.3 0.25 999.0 MAXIMUM WIND (KT) : 35.0 22.5 to 132.0 0.36 999.0 STD DEV OF IR BR TEMP : 6.3 37.8 to 2.1 0.88 999.0 BL DRY-AIR FLUX (W/M2) : 317.0 800.8 to -82.5 0.55 999.0 HEAT CONTENT (KJ/CM2) : 0.0 2.7 to 106.7 0.00 0.0 %area of TPW <45 mm upshear : 77.4 56.6 to 0.0 0.00 0.0 2nd PC OF IR BR TEMP : 0.4 2.2 to -2.3 0.40 999.0 SHIPS Prob RI for 20kt/ 12hr RI threshold= 0% is 0.0 times climatological mean ( 6.3%) SHIPS Prob RI for 25kt/ 24hr RI threshold= 0% is 0.0 times climatological mean (12.5%) SHIPS Prob RI for 30kt/ 24hr RI threshold= 0% is 0.0 times climatological mean ( 8.6%) SHIPS Prob RI for 35kt/ 24hr RI threshold= 0% is 0.0 times climatological mean ( 6.2%) SHIPS Prob RI for 40kt/ 24hr RI threshold= 0% is 0.0 times climatological mean ( 4.2%) SHIPS Prob RI for 45kt/ 36hr RI threshold= 0% is 0.0 times climatological mean ( 6.7%) SHIPS Prob RI for 55kt/ 48hr RI threshold= 0% is 0.0 times climatological mean ( 5.9%) SHIPS Prob RI for 65kt/ 72hr RI threshold= 0% is 0.0 times climatological mean ( 4.7%) 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: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Logistic: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Bayesian: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Consensus: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% DTOPS: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% ## ANNULAR HURRICANE INDEX (AHI) EP122021 LINDA 08/20/21 18 UTC ## ## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=5 NFAIL=2 ## ## AHI= 0 (AHI OF 100 IS BEST FIT TO ANN. STRUC., 1 IS MARGINAL, 0 IS NOT ANNULAR) ##