UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100823.upa.cvt Date: 2300Z 8 OCT 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 8 OCT 25 Station: HKNC WMO ident: 63741 Latitude: -1.30 Longitude: 36.75 Elevation: 1798.00 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- SFC 825 1798 16.4 13.1 81 3.3 14.2 0 0 305.9 308.1 294.5 340.6 11.56 1 812 1932 14.2 13.3 94 0.9 13.6 305.0 307.2 294.4 340.6 11.91 2 796 2100 13.2 12.4 95 0.8 12.7 305.7 307.8 294.3 340.0 11.44 3 734 2775 8.4 7.9 97 0.5 8.1 307.6 309.3 293.2 335.3 9.15 4 664 3595 3.6 3.5 99 0.1 3.5 311.1 312.5 292.8 334.1 7.43 5 657 3681 3.0 2.9 99 0.1 2.9 311.4 312.8 292.7 333.7 7.20 6 616 4201 0.8 -1.6 84 2.4 -0.4 314.7 315.7 292.3 332.1 5.53 7 589 4560 -0.5 -7.5 59 7.0 -3.7 317.2 317.9 291.5 329.2 3.69 8 582 4655 -1.3 -8.3 59 7.0 -4.4 317.4 318.0 291.4 328.8 3.51 9 563 4919 -3.9 -8.9 68 5.0 -6.1 317.3 318.0 291.3 328.6 3.46 10 550 5104 -1.5 -19.5 24 18.0 -7.7 322.3 322.6 291.0 327.4 1.48 11 540 5250 -1.9 -23.9 17 22.0 -8.8 323.5 323.7 290.9 327.1 1.03 12 449 6690 -11.9 -33.9 14 22.0 -16.7 328.5 328.6 291.8 330.3 0.48 13 437 6898 -11.7 -42.7 6 31.0 -17.2 331.3 331.3 292.3 332.1 0.20 14 400 7571 -15.5 -38.5 12 23.0 -19.8 334.8 334.9 293.4 336.2 0.34 15 285 10033 -35.1 -54.1 13 19.0 -36.4 340.9 340.9 294.6 341.2 0.09 16 255 10799 -40.9 -45.9 58 5.0 -41.3 343.3 343.4 295.3 344.3 0.25 17 235 11349 -45.9 -48.8 72 2.9 -46.1 343.9 343.9 295.4 344.6 0.19 18 194 12601 -54.9 -64.9 28 10.0 -55.1 348.9 348.9 296.4 349.0 0.03 19 169 13467 -62.7 -68.7 44 6.0 -62.8 349.9 349.9 296.6 350.0 0.02 20 145 14396 -69.9 -76.9 35 7.0 -69.9 353.1 353.1 297.3 353.1 0.01 21 136 14778 -69.5 -75.5 41 6.0 -69.5 360.3 360.3 298.8 360.4 0.01 22 112 15917 -76.1 -84.1 27 8.0 -76.1 368.6 368.6 300.3 368.6 0.00 23 97 16743 -77.9 -85.9 26 8.0 -77.9 300 13 380.5 380.5 302.3 380.5 0.00 24 80 17860 -72.9 -79.9 34 7.0 -72.9 412.4 412.4 306.8 412.4 0.01 25 70 18640 -74.5 -83.5 24 9.0 -74.6 260 14 425.0 425.0 308.3 425.0 0.01 26 56 19939 -74.3 -87.3 12 13.0 -74.4 453.5 453.5 311.2 453.5 0.00 27 50 20610 -68.1 -86.1 6 18.0 -68.3 35 21 483.0 483.0 313.7 483.0 0.00 28 44 21379 -69.1 -96.1 1 27.0 -69.3 498.6 498.6 314.8 498.6 0.00 29 30 23720 -60.9 -89.9 1 29.0 -61.7 85 60 578.6 578.6 319.6 578.6 0.00 30 25 24862 -59.1 -89.1 1 30.0 -60.3 614.8 614.8 321.3 614.8 0.01 31 20 26290 -51.5 -83.5 1 32.0 -54.5 90 65 678.5 678.5 323.7 678.7 0.02 TRP 97 16743 -77.9 -85.9 26 8.0 -77.9 300 13 380.5 380.5 302.3 380.5 0.00 WND 13 105 80 Sounding variables and indices Freezing level: 599.38 mb = 4421.83 m = 14507.15 ft Wetbulb zero: 621.42 mb = 4130.23 m = 13550.46 ft Precipitable water: 0.89 inches Sfc-500 mean rel hum: 72.95 % Est. max temperature: 20.78 C = 69.41 F Sfc-Lift cond lev (LCL): 785.43 mb = 2211.06 m = 7254.03 ft T: 12.41 C 700-500 lapse rate: 4.54 C/km ThetaE index: 13.50 C Layer 812.0- 449.0 mb Conv cond level (CCL): 761.00 mb = 2474.12 m = 8117.09 ft Mean mixing ratio: 10.57 g/kg Conv temperature: 17.17 C = 62.90 F Cap Strength: 2.06 C Lifted Index: 1.47 C Risk: Showers probable Lifted Index @300 mb: 3.03 C Lifted Index @700 mb: -0.98 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 95.82 J/kg Max Up Vert Vel: 13.84 m/s Conv Inhibition (B-): 0.31 J/kg Cap Strength: 2.01 C Lift Cond Lev (LCL): 764.78 mb = 2432.89 m = 7981.81 ft Lev Free Conv (LFC): 749.78 mb = 2597.82 m = 8522.92 ft Equ Level (EL): 549.78 mb = 5107.02 m = 16755.11 ft B at Equ Level: 90.10 J/kg Max Parcel Lev (MPL): 439.78 mb = 6849.11 m = 22470.56 ft Wind level data ------------------------------------ TRUE/GROUND REL LEV P H DIR SPD U V mb m knt m/s ------------------------------------ 0 13 35005 105 80 -77.3 20.7 1 825 1798 0 0 -0.0 -0.0 2 97 16743 300 13 11.3 -6.5 3 70 18640 260 14 13.8 2.4 4 50 20610 35 21 -12.0 -17.2 5 30 23720 85 60 -59.8 -5.2 6 20 26290 90 65 -65.0 0.0 Wind Parameters Energy-Hel index: -5.99 Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 NO DATA | | | 1000 NO DATA | | | 1500 NO DATA | | | 2000 NO DATA | | | 2500 NO DATA | | | 3000 NO DATA | | | 4000 NO DATA | | | 5000 NO DATA | | | 6000 NO DATA | | | Wrote GIF file: /home/apache/climate/data/raob//HKNC/skewt/HKNC.skewt.20251008.23.gif