* GFS version * * EAST PACIFIC 2025 SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC CLIMO USED * * SONIA EP182025 10/29/25 00 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 32 29 26 23 18 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A V (KT) LAND 35 32 29 26 23 18 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A V (KT) LGEM 35 32 29 25 23 19 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 TROP TROP TROP TROP N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SHEAR (KT) 22 24 25 24 24 10 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) 4 2 2 2 2 2 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SHEAR DIR 194 192 188 189 197 240 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SST (C) 25.7 25.3 25.4 25.6 25.9 26.3 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) 120 116 117 120 122 127 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) -54.0 -54.3 -54.5 -54.5 -54.4 -54.6 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 0.1 0.0 0.1 0.0 0.2 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) 3 3 4 4 4 5 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 50 47 46 44 43 43 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 5 LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST 850 MB ENV VOR -14 -15 -22 -27 -29 -24 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 17 25 34 15 -7 -36 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 5 6 6 4 2 5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A LAND (KM) 1686 1756 1823 1916 2012 2199 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) 15.4 15.5 15.5 15.4 15.2 14.9 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) 124.8 125.8 126.8 127.9 129.0 131.1 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) 9 10 10 11 10 11 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A HEAT CONTENT 7 6 6 7 7 7 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):280/ 8 CX,CY: -7/ 1 T-12 MAX WIND: 40 PRESSURE OF STEERING LEVEL (MB): 710 (MEAN=586) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 8.2 (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): 0.1 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. 1. 1. 1. 2. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. SST POTENTIAL 0. 1. 2. 3. 5. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. VERTICAL SHEAR MAG 0. 0. -0. -1. -1. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. VERTICAL SHEAR ADJ -0. -0. -1. -1. -1. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. VERTICAL SHEAR DIR -0. -1. -1. -2. -4. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. PERSISTENCE -1. -2. -2. -3. -2. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 200/250 MB TEMP. 0. 0. 0. 0. 1. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. THETA_E EXCESS -0. -1. -1. -1. -2. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 700-500 MB RH -0. -0. -0. -1. -2. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. MODEL VTX TENDENCY -0. -1. -3. -4. -5. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 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. -0. -0. -0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 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. -0. -0. -0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. STEERING LEVEL PRES 0. 0. 1. 1. 1. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. DAYS FROM CLIM. PEAK -0. -0. -0. -0. -1. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. GOES PREDICTORS -1. -1. -1. -1. -3. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 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. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. -------------------------------------------------------------------------------------------- TOTAL CHANGE -3. -6. -9. -12. -17. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. CURRENT MAX WIND (KT): 35. LAT, LON: 15.4 124.8 ** 2025 E. PACIFIC RI INDEX EP182025 SONIA 10/29/25 00 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) : 84.0 30.0 to 148.5 0.46 999.0 12 HR PERSISTENCE (KT) : -5.0 -22.0 to 44.0 0.26 999.0 MULTI-LAYER SHEAR (KT) : 35.0 34.9 to 7.7 0.00 0.0 BL DRY-AIR FLUX (W/M2) : 257.2 800.8 to -82.5 0.62 999.0 D200 (10**7s-1) : 16.8 -33.0 to 170.5 0.24 999.0 MAXIMUM WIND (KT) : 35.0 22.5 to 132.0 0.36 999.0 STD DEV OF IR BR TEMP : 8.2 37.8 to 2.1 0.83 999.0 HEAT CONTENT (KJ/CM2) : 6.6 2.7 to 107.8 0.04 999.0 %area of TPW <45 mm upshear : 17.2 58.2 to 0.0 0.70 999.0 2nd PC OF IR BR TEMP : 0.4 2.2 to -2.6 0.36 999.0 SHIPS Prob RI for 20kt/ 12hr RI threshold= 4% is 0.7 times climatological mean ( 6.3%) SHIPS Prob RI for 25kt/ 24hr RI threshold= 8% is 0.7 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= 6% is 1.0 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: 4.1% 8.1% 0.0% 0.0% 0.0% 6.4% 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: 1.4% 2.7% 0.0% 0.0% 0.0% 2.1% 0.0% 0.0% DTOPS: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% SDCON: 0.7% 1.3% 0.0% 0.0% 0.0% 1.0% 0.0% 0.0% ## ANNULAR HURRICANE INDEX (AHI) EP182025 SONIA 10/29/25 00 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) ##