* EAST PACIFIC SHIPS INTENSITY FORECAST * * GOES INPUT INCLUDED * * LOWELL EP132008 09/11/08 18 UTC * TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 V (KT) NO LAND 25 27 28 28 29 30 28 21 DIS DIS DIS DIS DIS V (KT) LAND 25 27 25 26 26 26 27 27 DIS DIS DIS DIS DIS V (KT) LGE mod 25 25 23 24 25 26 27 27 27 27 DIS DIS DIS SHEAR (KTS) 14 25 28 27 24 38 38 39 42 40 N/A N/A N/A SHEAR DIR 140 151 180 196 196 206 212 232 256 266 N/A N/A N/A SST (C) 30.2 30.6 30.9 30.9 30.7 30.3 29.6 28.7 26.8 26.6 N/A N/A N/A POT. INT. (KT) 166 170 170 171 170 167 159 149 129 126 N/A N/A N/A 200 MB T (C) -50.7 -50.2 -50.3 -50.3 -49.7 -49.0 -47.5 -46.5 -47.5 -48.4 N/A N/A N/A TH_E DEV (C) 10 11 9 8 10 8 7 5 4 2 N/A N/A N/A 700-500 MB RH 56 54 52 47 43 35 31 29 30 31 N/A N/A N/A GFS VTEX (KT) 11 8 7 6 6 5 5 4 2 LOST LOST LOST LOST 850 MB ENV VOR 72 65 72 57 37 37 3 -20 -65 -53 N/A N/A N/A 200 MB DIV 40 20 23 2 5 7 -4 7 -17 -24 N/A N/A N/A LAND (KM) 108 40 -40 -77 -135 -237 -323 -371 -368 -315 N/A N/A N/A LAT (DEG N) 24.4 25.1 25.8 26.6 27.4 28.7 30.1 30.9 31.8 31.9 N/A N/A N/A LONG(DEG W) 109.0 108.8 108.5 108.5 108.4 108.3 108.3 108.7 109.2 109.8 N/A N/A N/A STM SPEED (KT) 8 7 8 8 8 7 6 5 3 3 N/A N/A N/A FORECAST TRACK FROM OFCI INITIAL HEADING/SPEED (DEG/KT): 30/ 10 CX,CY: 5/ 9 T-12 MAX WIND: 25 PRESSURE OF STEERING LEVEL (MB): 624 (MEAN=582) GOES IR BRIGHTNESS TEMP. STD DEV. 100-300 KM RAD: 12.3 (MEAN=18.0) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 100.0 (MEAN=65.7) INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE 6 12 18 24 36 48 60 72 84 96 108 120 ---------------------------------------------------------- SAMPLE MEAN CHANGE 0. 0. 0. 1. 1. 1. 0. 0. -1. -1. -2. -2. SST POTENTIAL 0. 1. 2. 4. 11. 19. 27. 31. 32. 35. 36. 38. VERTICAL SHEAR 1. 1. 2. 3. 2. -3. -11. -22. -33. -39. -43. -47. PERSISTENCE 0. 0. 0. -1. -1. -1. -1. -1. -1. -1. -1. -1. 200/250 MB TEMP. 0. -1. -1. -2. -3. -4. -3. -2. -2. -3. -6. -8. THETA_E EXCESS 0. 0. 0. 0. 1. 0. 0. -2. -3. -3. -3. -3. 700-500 MB RH 0. 0. 0. 0. -1. -2. -4. -4. -5. -4. -4. -4. GFS VORTEX TENDENCY 0. -2. -3. -4. -6. -8. -9. -11. -11. -11. -11. -10. 850 MB ENV VORTICITY 0. 0. 0. 0. 1. 1. 1. 0. -1. -1. -1. -1. 200 MB DIVERGENCE 0. 0. 0. 0. 0. -1. -1. -1. -1. -1. 0. 0. ZONAL STORM MOTION -1. -2. -3. -4. -6. -8. -10. -10. -10. -9. -9. -9. STEERING LEVEL PRES 0. 0. 0. 0. 0. 0. 1. 1. 1. 1. 1. 1. DAYS FROM CLIM. PEAK 0. 0. 0. 0. 0. 1. 1. 1. 2. 2. 2. 3. ---------------------------------------------------------- SUB-TOTAL CHANGE 0. -2. -3. -3. -3. -5. -11. -21. -31. -37. -41. -44. SATELLITE ADJUSTMENTS ---------------------------------------------------------- MEAN ADJUSTMENT 0. 0. -1. -1. -1. -2. -2. -2. -1. -1. -1. -1. GOES IR STD DEV 1. 3. 5. 6. 8. 8. 7. 5. 4. 3. 4. 4. GOES IR PIXEL COUNT 1. 1. 2. 2. 2. 2. 2. 1. 1. 0. 0. 0. ---------------------------------------------------------- TOTAL ADJUSTMENT 2. 4. 6. 7. 8. 8. 7. 5. 3. 2. 3. 3. ---------------------------------------------------------- TOTAL CHANGE (KT) 2. 3. 3. 4. 5. 3. -4. -16. -28. -35. -38. -40. ** E. PACIFIC 2008 RI INDEX EP132008 LOWELL 09/11/08 18 UTC ** ( 25 KT OR MORE MAX WIND INCREASE IN NEXT 24 HR) 12 HR PERSISTENCE (KT): 0.0 Range:-20.0 to 45.0 Scaled/Wgted Val: 0.3/ 0.4 850-200 MB SHEAR (KT) : 23.6 Range: 18.5 to 1.6 Scaled/Wgted Val: 0.0/ 0.0 D200 (10**7s-1) : 18.0 Range:-11.0 to 127.0 Scaled/Wgted Val: 0.2/ 0.1 POT = MPI-VMAX (KT) : 144.6 Range: 37.1 to 131.4 Scaled/Wgted Val: 1.1/ 1.6 850-700 MB REL HUM (%): 59.6 Range: 63.0 to 88.0 Scaled/Wgted Val: 0.0/ 0.0 % area w/pixels <-30 C: 99.0 Range: 26.0 to 100.0 Scaled/Wgted Val: 1.0/ 0.3 STD DEV OF IR BR TEMP : 3.8 Range: 35.4 to 2.7 Scaled/Wgted Val: 1.0/ 1.5 Prob of RI for 25 kt RI threshold= 4% is 0.3 times the sample mean(12.5%) Prob of RI for 30 kt RI threshold= 2% is 0.3 times the sample mean( 8.3%) Prob of RI for 35 kt RI threshold= 2% is 0.3 times the sample mean( 5.8%) ## ANNULAR HURRICANE INDEX (AHI) EP132008 LOWELL 09/11/08 18 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) ## ## ANNULAR INDEX RAN NORMALLY