UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101400.upa.cvt Date: 0000Z 14 OCT 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:0000Z 14 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 823 1798 15.4 12.5 83 2.9 13.5 30 6 305.1 307.2 293.9 338.4 11.14 1 794 2099 12.4 11.9 97 0.5 12.1 305.0 307.1 293.9 338.2 11.10 2 764 2420 10.0 9.2 95 0.8 9.5 305.8 307.6 293.0 334.7 9.61 3 678 3403 6.6 4.8 88 1.8 5.5 312.6 314.2 293.7 337.4 7.98 4 662 3598 6.2 0.2 65 6.0 2.9 314.3 315.5 292.5 332.8 5.87 5 628 4028 5.0 -20.0 14 25.0 -3.8 317.7 318.0 289.3 322.0 1.24 6 616 4185 3.8 -23.2 12 27.0 -5.0 318.1 318.3 289.2 321.4 0.96 7 586 4587 1.2 -30.8 7 32.0 -7.4 319.7 319.8 289.2 321.5 0.50 8 559 4964 -1.5 -18.5 26 17.0 -7.5 320.8 321.1 290.6 326.2 1.59 9 518 5568 -2.9 -28.9 11 26.0 -10.1 326.2 326.3 291.3 328.6 0.68 10 468 6364 -7.3 -41.3 5 34.0 -14.0 330.3 330.4 292.0 331.2 0.22 11 451 6652 -8.7 -41.7 5 33.0 -15.1 332.1 332.1 292.5 332.9 0.22 12 290 9916 -32.5 -60.5 4 28.0 -34.3 342.9 342.9 295.0 343.0 0.04 13 256 10781 -39.7 -56.7 15 17.0 -40.6 344.7 344.7 295.5 345.0 0.07 14 200 12418 -53.5 -61.5 37 8.0 -53.7 348.0 348.1 296.3 348.3 0.05 15 136 14789 -72.9 -78.9 40 6.0 -72.9 354.3 354.3 297.5 354.3 0.01 16 103 16391 -79.7 -85.7 36 6.0 -79.7 370.6 370.6 300.7 370.6 0.00 17 94 16914 -76.3 -81.1 46 4.8 -76.3 387.1 387.1 303.3 387.1 0.01 18 92 17038 -76.5 -81.1 48 4.6 -76.5 389.1 389.1 303.6 389.1 0.01 19 79 17910 -78.7 -85.7 31 7.0 -78.7 401.9 401.9 305.5 401.9 0.00 20 74 18290 -70.3 -76.3 41 6.0 -70.4 427.1 427.1 308.5 427.2 0.02 21 70 18620 -70.9 -78.9 30 8.0 -71.0 15 16 432.7 432.7 309.1 432.8 0.01 22 54 20160 -69.1 -92.1 2 23.0 -69.2 470.2 470.2 312.7 470.2 0.00 23 50 20620 -67.9 -94.9 1 27.0 -68.1 115 29 483.5 483.5 313.7 483.5 0.00 24 40 21971 -68.3 -95.3 1 27.0 -68.5 514.3 514.3 315.9 514.3 0.00 25 30 23730 -62.9 -91.9 1 29.0 -63.6 75 54 573.2 573.2 319.3 573.2 0.00 TRP WND 28 85 61 Sounding variables and indices Freezing level: 574.00 mb = 4754.90 m = 15599.88 ft Wetbulb zero: 647.12 mb = 3783.53 m = 12413.00 ft Precipitable water: 0.71 inches Sfc-500 mean rel hum: 50.29 % Est. max temperature: 23.04 C = 73.47 F Sfc-Lift cond lev (LCL): 788.13 mb = 2160.91 m = 7089.51 ft T: 11.94 C 700-500 lapse rate: 4.41 C/km ThetaE index: 3.69 C Layer 794.0- 678.0 mb Conv cond level (CCL): 758.62 mb = 2477.68 m = 8128.76 ft Mean mixing ratio: 10.08 g/kg Conv temperature: 16.47 C = 61.64 F Cap Strength: 3.70 C Lifted Index: 3.81 C Risk: None Lifted Index @300 mb: 5.52 C Lifted Index @700 mb: 0.99 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 18.49 J/kg Max Up Vert Vel: 6.08 m/s Conv Inhibition (B-): 16946.95 J/kg Cap Strength: 3.73 C Lift Cond Lev (LCL): 759.33 mb = 2469.98 m = 8103.50 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data ------------------------------------ TRUE/GROUND REL LEV P H DIR SPD U V mb m knt m/s ------------------------------------ 0 28 28847 85 61 -60.8 -5.3 1 823 1798 30 6 -3.0 -5.2 2 70 18620 15 16 -4.1 -15.5 3 50 20620 115 29 -26.3 12.3 4 30 23730 75 54 -52.2 -14.0 Wind Parameters Energy-Hel index: -1.16 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.20251014.00.gif