* GFS version * * ATLANTIC 2021 SHIPS INTENSITY FORECAST * * IR SAT DATA AVAILABLE, OHC AVAILABLE * * CLAUDETTE AL032021 06/22/21 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 40 40 39 38 37 42 44 45 45 43 42 40 38 37 38 39 43 V (KT) LAND 40 40 39 38 37 37 32 31 30 30 30 30 30 30 30 30 30 V (KT) LGEM 40 40 39 39 39 42 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 EXTP EXTP EXTP N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SHEAR (KT) 2 7 6 3 7 20 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) 7 0 5 3 3 3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SHEAR DIR 327 131 234 229 210 237 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A SST (C) 25.0 22.6 20.2 14.4 11.7 8.4 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) 110 95 85 73 70 68 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ADJ. POT. INT. 101 87 79 70 68 67 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) -54.3 -54.9 -54.9 -54.7 -54.9 -55.3 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) 0.2 0.1 -0.1 0.1 -0.1 -0.3 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) 6 3 2 0 0 0 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 58 61 61 61 61 59 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 11 10 10 8 15 LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST 850 MB ENV VOR -38 -10 0 14 27 19 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 43 29 -4 -1 13 40 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 25 10 51 37 37 14 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A LAND (KM) 385 339 309 262 200 -9 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) 37.8 39.3 40.8 42.5 44.2 47.3 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) 70.3 67.5 64.6 61.9 59.1 53.9 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) 26 27 27 26 25 23 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A HEAT CONTENT 0 0 0 0 0 0 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): 60/ 26 CX,CY: 23/ 13 T-12 MAX WIND: 40 PRESSURE OF STEERING LEVEL (MB): 639 (MEAN=620) GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 18.1 (MEAN=14.5) % GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 19.0 (MEAN=65.0) PRELIM RI PROB (DV .GE. 35 KT IN 36 HR): 3.3 INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE 6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168 ------------------------------------------------------------------------------ SAMPLE MEAN CHANGE 1. 2. 3. 4. 6. 8. 9. 10. 11. 12. 12. 13. 14. 15. 15. 16. SST POTENTIAL -0. -1. -2. -3. -4. -4. -4. -4. -5. -5. -7. -9. -11. -12. -14. -15. VERTICAL SHEAR MAG 1. 2. 4. 5. 7. 8. 9. 9. 9. 9. 8. 7. 6. 5. 5. 6. VERTICAL SHEAR ADJ -0. -0. -1. -1. -1. -2. -2. -2. -2. -2. -2. -2. -2. -1. -1. -1. VERTICAL SHEAR DIR -0. 0. 1. 1. 2. 3. 4. 5. 6. 6. 7. 8. 9. 9. 9. 9. PERSISTENCE -0. -1. -1. -1. -0. -0. -0. -0. -0. 0. 0. 0. -0. -0. -1. -0. 200/250 MB TEMP. 0. -0. -0. 0. 0. 1. 1. 1. 1. 1. 2. 3. 3. 5. 6. 7. THETA_E EXCESS -0. -1. -1. -2. -3. -3. -4. -4. -3. -3. -1. -0. 0. 1. 2. 4. 700-500 MB RH -0. -0. -0. -0. -1. -1. -2. -2. -3. -3. -3. -3. -4. -4. -4. -4. MODEL VTX TENDENCY -0. -1. -1. -3. 1. 1. 1. 0. -0. -1. -2. -3. -3. -4. -4. -5. 850 MB ENV VORTICITY -0. -0. -0. -0. -1. -1. -1. -1. -1. -1. -1. -2. -2. -2. -2. -2. 200 MB DIVERGENCE 0. -0. -0. -0. -1. -1. -1. -1. -1. -1. -0. 0. 0. 0. 1. 1. 850-700 T ADVEC -0. 0. 0. 1. 2. 3. 3. 3. 2. 1. 0. 0. 0. 0. 0. 0. ZONAL STORM MOTION 0. 0. -0. -1. -2. -2. -3. -4. -6. -8. -10. -11. -11. -12. -13. -13. STEERING LEVEL PRES -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -1. -1. -0. -0. -0. -1. DAYS FROM CLIM. PEAK -0. 0. 0. 0. -0. -0. -0. -0. -0. 0. 0. 0. 1. 2. 2. 2. GOES PREDICTORS -1. -1. -2. -2. -2. -3. -4. -4. -5. -4. -4. -5. -5. -5. -5. -4. OCEAN HEAT CONTENT 0. 0. 0. 0. 0. 0. -0. -0. -0. -0. -0. -0. -0. -0. -0. -0. RI POTENTIAL -0. -1. -1. -2. -3. -3. -2. -1. -0. 1. 1. 2. 3. 3. 3. 3. ------------------------------------------------------------------------------ TOTAL CHANGE -0. -1. -2. -3. 2. 4. 5. 5. 3. 2. 0. -2. -3. -2. -1. 3. CURRENT MAX WIND (KT): 40. LAT, LON: 37.8 70.3 ** 2021 ATLANTIC RI INDEX AL032021 CLAUDETTE 06/22/21 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 12 HR PERSISTENCE (KT) : 0.0 -49.5 to 33.0 0.60 2.6 850-200 MB SHEAR (KT) : 5.2 30.1 to 2.3 0.90 1.8 HEAT CONTENT (KJ/CM2) : 0.0 0.0 to 151.8 0.00 0.0 STD DEV OF IR BR TEMP : 18.1 36.6 to 2.8 0.55 1.1 MAXIMUM WIND (KT) : 40.0 22.5 to 137.5 0.46 0.8 BL DRY-AIR FLUX (W/M2) : 237.6 895.4 to -55.0 0.69 1.1 2nd PC OF IR BR TEMP : -0.8 2.9 to -2.9 0.65 0.8 POT = MPI-VMAX (KT) : 41.3 28.3 to 146.3 0.11 0.1 D200 (10**7s-1) : 16.0 -29.7 to 185.9 0.21 0.1 %area of TPW <45 mm upshear : 42.0 100.0 to 0.0 0.58 0.1 SHIPS Prob RI for 20kt/ 12hr RI threshold= 4% is 0.9 times climatological mean ( 4.9%) SHIPS Prob RI for 25kt/ 24hr RI threshold= 12% is 1.1 times climatological mean (10.9%) SHIPS Prob RI for 30kt/ 24hr RI threshold= 9% is 1.3 times climatological mean ( 6.8%) SHIPS Prob RI for 35kt/ 24hr RI threshold= 8% is 2.0 times climatological mean ( 3.9%) SHIPS Prob RI for 40kt/ 24hr RI threshold= 0% is 0.0 times climatological mean ( 2.4%) SHIPS Prob RI for 45kt/ 36hr RI threshold= 0% is 0.0 times climatological mean ( 4.6%) SHIPS Prob RI for 55kt/ 48hr RI threshold= 0% is 0.0 times climatological mean ( 4.7%) SHIPS Prob RI for 65kt/ 72hr RI threshold= 0% is 0.0 times climatological mean ( 5.3%) 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: 4.2% 11.9% 8.5% 7.8% 0.0% 0.0% 0.0% 0.0% Logistic: 1.3% 1.1% 0.4% 0.0% 0.0% 0.4% 0.1% 0.0% Bayesian: 0.5% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Consensus: 2.0% 4.3% 3.0% 2.6% 0.0% 0.1% 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) AL032021 CLAUDETTE 06/22/21 00 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 AL032021 CLAUDETTE 06/22/2021 00 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 96 108 120 132 144 156 168 >24HR AGO (DSHIPS) 40 40 39 38 37 37 32 31 30 30 30 30 30 30 30 30 30 18HR AGO 40 39 38 37 36 36 31 30 29 29 29 29 29 29 29 29 29 12HR AGO 40 37 36 35 34 34 29 28 27 27 27 27 27 27 27 27 27 6HR AGO 40 34 31 30 29 29 24 23 22 22 22 22 22 22 22 22 22 NOW CURRENT INTENSITY < 83 KT IN 6HR INTENSITY IN 6HR < 83 KT IN 12HR INTENSITY IN 12HR < 83 KT