UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025062123.upa.cvt Date: 2300Z 21 JUN 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 21 JUN 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 824 1798 16.0 13.5 85 2.5 14.4 0 0 305.6 307.8 294.6 341.2 11.89 1 795 2101 14.0 12.8 92 1.2 13.2 359 0 306.6 308.8 294.8 342.1 11.77 2 776 2304 12.4 12.3 99 0.1 12.3 359 1 307.0 309.2 294.8 342.2 11.67 3 713 3010 10.0 8.4 90 1.6 9.0 357 1 311.9 313.8 294.8 342.0 9.75 4 665 3588 9.2 2.2 62 7.0 5.2 355 2 317.3 318.6 294.0 338.8 6.76 5 651 3764 8.4 1.4 61 7.0 4.4 355 2 318.3 319.6 294.1 339.1 6.52 6 634 3981 7.0 -5.0 42 12.0 1.0 354 2 319.1 320.0 292.4 332.7 4.16 7 618 4191 5.0 -1.0 65 6.0 1.8 354 2 319.2 320.3 293.7 337.7 5.76 8 542 5242 -4.7 -5.1 97 0.4 -4.9 351 4 319.8 320.8 293.2 335.5 4.83 9 529 5433 -4.7 -8.6 74 3.9 -6.4 351 4 322.1 322.8 292.9 334.5 3.78 10 517 5614 -4.3 -33.3 8 29.0 -11.3 350 4 324.7 324.8 290.6 326.3 0.45 11 507 5768 -4.5 -24.5 19 20.0 -10.6 350 4 326.3 326.5 291.7 329.9 1.04 12 474 6294 -8.5 -16.5 52 8.0 -11.4 348 5 327.6 328.1 293.2 335.3 2.22 13 462 6492 -9.5 -23.5 31 14.0 -13.7 348 5 328.8 329.1 292.6 333.2 1.24 14 412 7366 -16.1 -25.1 46 9.0 -18.5 345 6 331.3 331.5 293.2 335.6 1.21 15 394 7701 -18.3 -28.3 41 10.0 -20.7 344 6 332.6 332.8 293.3 336.1 0.94 16 359 8392 -21.3 -39.3 18 18.0 -24.3 342 7 337.6 337.7 294.1 339.0 0.35 17 350 8579 -22.7 -41.7 16 19.0 -25.5 342 7 338.2 338.2 294.1 339.3 0.28 18 256 10790 -41.1 -50.1 37 9.0 -41.7 335 10 342.6 342.7 295.1 343.3 0.15 19 184 12947 -59.5 -62.1 72 2.6 -59.6 328 13 346.7 346.7 296.0 346.9 0.05 20 168 13514 -61.5 -69.5 34 8.0 -61.6 326 13 352.5 352.5 297.2 352.6 0.02 21 157 13934 -60.9 -72.9 19 12.0 -61.0 325 14 360.4 360.4 298.8 360.5 0.01 22 121 15513 -71.7 -82.7 18 11.0 -71.8 319 16 368.5 368.5 300.3 368.6 0.00 23 112 15970 -70.3 -81.3 18 11.0 -70.4 318 17 379.4 379.4 302.2 379.4 0.00 24 95 16936 -75.7 -86.7 16 11.0 -75.7 314 18 387.1 387.1 303.3 387.1 0.00 25 78 18069 -78.3 -87.3 22 9.0 -78.3 310 20 404.2 404.2 305.7 404.2 0.00 26 70 18690 -76.1 -85.1 23 9.0 -76.2 275 18 421.6 421.6 307.9 421.6 0.00 27 62 19393 -71.9 -80.9 25 9.0 -72.0 255 15 445.8 445.8 310.4 445.8 0.01 28 50 20660 -69.7 -81.7 16 12.0 -69.8 220 11 479.2 479.2 313.4 479.3 0.01 29 40 22016 -63.3 -91.3 1 28.0 -63.8 165 26 526.9 526.9 316.7 526.9 0.00 30 32 23418 -55.3 -86.3 1 31.0 -56.8 111 41 583.0 583.0 319.8 583.1 0.01 31 30 23830 -56.1 -87.1 1 31.0 -57.5 95 45 591.7 591.7 320.2 591.7 0.01 32 20 26440 -52.1 -84.1 1 32.0 -55.0 90 44 676.7 676.7 323.7 676.8 0.02 TRP 78 18069 -78.3 -87.3 22 9.0 -78.3 310 20 404.2 404.2 305.7 404.2 0.00 WND Sounding variables and indices Freezing level: 578.82 mb = 4732.56 m = 15526.59 ft Wetbulb zero: 597.78 mb = 4457.21 m = 14623.21 ft Precipitable water: 1.03 inches Sfc-500 mean rel hum: 74.18 % Est. max temperature: 26.07 C = 78.92 F Sfc-Lift cond lev (LCL): 793.90 mb = 2112.38 m = 6930.31 ft T: 13.91 C 700-500 lapse rate: 5.57 C/km ThetaE index: 3.46 C Layer 713.0- 651.0 mb Conv cond level (CCL): 743.02 mb = 2665.94 m = 8746.43 ft Mean mixing ratio: 11.30 g/kg Conv temperature: 19.70 C = 67.47 F Cap Strength: 3.02 C Lifted Index: 0.63 C Risk: Showers probable Lifted Index @300 mb: 1.14 C Lifted Index @700 mb: 1.51 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 88.36 J/kg Max Up Vert Vel: 13.29 m/s Conv Inhibition (B-): 121.07 J/kg Cap Strength: 2.99 C Lift Cond Lev (LCL): 761.08 mb = 2465.71 m = 8089.50 ft Lev Free Conv (LFC): 576.08 mb = 4753.36 m = 15594.83 ft Equ Level (EL): 516.08 mb = 5627.74 m = 18463.49 ft B at Equ Level: 64.96 J/kg Max Parcel Lev (MPL): 296.08 mb = 9761.90 m = 32026.83 ft Wind level data Storm motion: 340 at 8 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 824 1798 0 0 -0.0 -0.0 | 160 8 -2.6 7.0 1 78 18069 310 20 15.3 -12.9 | 294 14 12.8 -5.8 2 70 18690 275 18 17.9 -1.6 | 250 16 15.4 5.5 3 50 20660 220 11 7.1 8.4 | 196 16 4.5 15.5 4 30 23830 95 45 -44.8 3.9 | 103 49 -47.4 11.0 5 20 26440 90 44 -44.0 0.0 | 99 47 -46.6 7.0 Wind Parameters Mean winds (0-6000m): 310.0 at 10.0 knts Storm direction: 340.0 at 7.5 knts Storm rel Dir Shear (0-3000m): -115.0 deg Storm rel helicity (0-3000m) pos: 0.0 neg: 0.0 tot: 0.0 m^2/s^2 ave: 0.0 10^-3 m/s^2 rel: 0.00 Storm rel vorticity (0-3000m) horiz: 0.0 stream: 0.0 10^-3/s Energy-Hel index: 0.00 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.20250621.23.gif