* ATLC RAPID INTENSITY INDEX TESTS * * GOES DATA AVAILABLE * * OHC DATA AVAILABLE * * AL03 AL032009 08/18/09 12 UTC * ++++++++ SECTION 1, COPY OF OPERATIONAL RII ++++++++ ** 2009 Atlantic Re-run RII AL032009 AL03 08/18/09 12 UTC ** ( 30 KT OR MORE MAX WIND INCREASE IN NEXT 24 HR) 12 HR PERSISTENCE (KT): 5.0 Range:-45.0 to 30.0 Scaled/Wgted Val: 0.7/ 1.7 850-200 MB SHEAR (KT) : 10.9 Range: 26.2 to 3.2 Scaled/Wgted Val: 0.7/ 0.9 D200 (10**7s-1) : 59.2 Range:-21.0 to 165.0 Scaled/Wgted Val: 0.4/ 0.4 POT = MPI-VMAX (KT) : 42.9 Range: 33.8 to 126.5 Scaled/Wgted Val: 0.1/ 0.1 850-700 MB REL HUM (%): 72.8 Range: 56.0 to 85.0 Scaled/Wgted Val: 0.6/ 0.5 % area w/pixels <-30 C: 99.0 Range: 17.0 to 100.0 Scaled/Wgted Val: 1.0/ 0.4 STD DEV OF IR BR TEMP : 10.1 Range: 34.1 to 3.2 Scaled/Wgted Val: 0.8/ 1.0 Heat content (KJ/cm2) : 37.8 Range: 0.0 to 130.0 Scaled/Wgted Val: 0.3/ 0.0 Prob of RI for 25 kt RI threshold= 21% is 1.7 times the sample mean(12.2%) Prob of RI for 30 kt RI threshold= 16% is 2.1 times the sample mean( 7.9%) Prob of RI for 35 kt RI threshold= 10% is 2.1 times the sample mean( 4.8%) Prob of RI for 40 kt RI threshold= 1% is 0.3 times the sample mean( 3.3%) ++++++++ SECTION 2, RII WITH LIGHTNING DATA ++++++++ FOR GOES-R PROVING GROUND AL03 Initial vmax, lat, lon: 90. 15.6 -50.3 Prob of RI for 30 kt RI threshold= 20%, no lightning input, exper. algorithm Prob of RI for 30 kt RI threshold= 21%, with lightning input, exper. algorithm Recent Lightning Density History (Strikes/km2-year) Date/Time Inner core (0-100 km) Rainband (300-400 km) 09 0818 12 ****** ****** Sample mean: 21.5 14.7 Note: Inner core lightning < sample mean favors RI Rainband lightning > sample mean favors RI ++++++++ SECTION 3, RII WITH TPW, IR PC AND FLUX +++ FOR JHT ** 2009 EXPERIMENTAL(nudge) ATLANTIC RI INDEX AL032009 AL03 08/18/09 12 UTC ** ( 30 KT OR MORE MAX WIND INCREASE IN NEXT 24 HR) 12 HR PERSISTENCE (KT): 5.0 Range:-49.5 to 33.0 Scaled/Wgted Val: 0.7/ 1.6 850-200 MB SHEAR (KT) : 10.9 Range: 28.8 to 2.9 Scaled/Wgted Val: 0.7/ 1.0 D200 (10**7s-1) : 59.2 Range:-23.1 to 181.5 Scaled/Wgted Val: 0.4/ 0.4 POT = MPI-VMAX (KT) : 42.9 Range: 30.4 to 139.1 Scaled/Wgted Val: 0.1/ 0.1 % AREA WITH TPW <45 mm: 18.9 Range:100.0 to 0.0 Scaled/Wgted Val: 0.8/ 0.4 2nd PC OF IR BR TEMP : 0.6 Range: 2.4 to -3.1 Scaled/Wgted Val: 0.3/ 0.5 STD DEV OF IR BR TEMP : 10.1 Range: 37.5 to 2.9 Scaled/Wgted Val: 0.8/ 1.0 HEAT CONTENT (KJ/cm2) : 37.8 Range: 0.0 to 143.0 Scaled/Wgted Val: 0.3/ 0.2 BL DRY-AIR FLUX (w/m2): 352.4 Range:960.3 to 4.5 Scaled/Wgted Val: 0.6/ 0.0 MAXIMUM WIND (kt) : 90.0 Range: 22.5 to 121.0 Scaled/Wgted Val: 0.5/ 0.2 Prob of RI for 25 kt RI threshold= 17% is 1.4 times the sample mean(12.2%) Prob of RI for 30 kt RI threshold= 15% is 1.6 times the sample mean( 7.9%) Prob of RI for 35 kt RI threshold= 11% is 2.9 times the sample mean( 4.8%) Prob of RI for 40 kt RI threshold= 1% is 0.3 times the sample mean( 3.3%)