UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042623.upa.cvt Date: 2300Z 26 APR 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 26 APR 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 17.2 14.8 86 2.4 15.6 60 5 307.0 309.4 295.7 346.1 12.97 1 794 2101 14.4 13.9 97 0.5 14.1 60 5 307.2 309.5 295.6 345.4 12.68 2 686 3315 6.6 6.6 100 0.0 6.6 58 6 311.6 313.3 294.1 339.2 8.95 3 663 3593 5.6 -7.4 39 13.0 -0.3 57 6 313.5 314.1 290.0 324.1 3.31 4 647 3793 7.2 -5.8 39 13.0 0.9 57 6 317.5 318.3 291.7 329.9 3.83 5 639 3895 6.0 -3.0 52 9.0 1.4 57 6 317.3 318.2 292.4 332.7 4.80 6 616 4194 4.2 -12.8 28 17.0 -2.8 56 6 318.6 319.0 290.6 326.3 2.32 7 610 4273 3.8 -15.2 23 19.0 -3.6 56 7 319.0 319.4 290.4 325.5 1.92 8 598 4434 2.2 -8.8 44 11.0 -2.7 56 7 319.0 319.6 291.6 329.7 3.29 9 576 4735 0.8 -23.2 15 24.0 -6.9 55 7 320.8 321.0 290.0 324.3 1.02 10 550 5103 -2.3 -11.3 50 9.0 -6.1 54 7 321.4 321.9 292.0 331.1 2.93 11 538 5278 -3.3 -15.3 39 12.0 -7.8 54 7 322.2 322.6 291.6 329.5 2.16 12 488 6048 -3.7 -32.7 8 29.0 -11.2 53 8 330.8 330.9 292.4 332.7 0.50 13 480 6178 -4.3 -29.3 12 25.0 -11.3 53 8 331.6 331.8 292.9 334.2 0.70 14 376 8042 -20.3 -32.3 33 12.0 -22.8 49 9 334.5 334.6 293.6 337.0 0.68 15 370 8162 -19.9 -41.9 12 22.0 -23.4 49 9 336.5 336.6 293.7 337.6 0.26 16 331 8979 -25.3 -49.3 9 24.0 -28.0 48 10 340.0 340.1 294.4 340.6 0.13 17 282 10122 -33.5 -42.5 40 9.0 -34.6 45 10 344.2 344.3 295.6 345.5 0.32 18 256 10794 -38.5 -54.5 17 16.0 -39.5 44 11 346.5 346.5 295.9 346.9 0.09 19 211 12096 -47.5 -63.5 14 16.0 -48.0 41 12 352.1 352.1 297.1 352.3 0.04 20 163 13746 -62.1 -67.1 51 5.0 -62.1 38 13 354.6 354.6 297.6 354.7 0.03 21 150 14255 -66.3 -73.3 37 7.0 -66.4 37 14 355.9 355.9 297.9 355.9 0.01 22 113 15919 -78.9 -85.9 31 7.0 -78.9 33 15 362.4 362.4 299.2 362.4 0.00 23 92 17077 -82.7 -89.7 29 7.0 -82.7 30 16 376.8 376.8 301.7 376.8 0.00 24 85 17526 -75.9 -80.8 46 4.9 -75.9 355 19 399.2 399.2 305.1 399.2 0.01 25 70 18660 -71.5 -78.5 34 7.0 -71.6 270 26 431.4 431.4 309.0 431.5 0.01 26 50 20640 -67.7 -85.7 6 18.0 -67.9 295 22 484.0 484.0 313.8 484.0 0.01 27 45 21280 -65.5 -93.5 1 28.0 -65.8 323 18 504.1 504.1 315.2 504.1 0.00 28 38 22310 -66.3 -94.3 1 28.0 -66.7 8 13 527.0 527.0 316.8 527.0 0.00 29 30 23770 -59.5 -89.5 1 30.0 -60.4 70 5 582.4 582.4 319.8 582.5 0.00 30 24 25186 -51.5 -83.5 1 32.0 -54.2 81 30 644.1 644.1 322.4 644.2 0.02 31 20 26370 -49.7 -82.7 1 33.0 -53.2 90 51 684.0 684.1 323.9 684.2 0.02 TRP 92 17077 -82.7 -89.7 29 7.0 -82.7 30 16 376.8 376.8 301.7 376.8 0.00 WND Sounding variables and indices Freezing level: 569.29 mb = 4830.00 m = 15846.25 ft Wetbulb zero: 664.10 mb = 3579.90 m = 11744.93 ft Precipitable water: 0.87 inches Sfc-500 mean rel hum: 58.99 % Est. max temperature: 22.58 C = 72.64 F Sfc-Lift cond lev (LCL): 794.24 mb = 2098.74 m = 6885.56 ft T: 14.42 C 700-500 lapse rate: 4.16 C/km ThetaE index: 21.93 C Layer 794.0- 647.0 mb Conv cond level (CCL): 762.25 mb = 2439.96 m = 8005.03 ft Mean mixing ratio: 11.82 g/kg Conv temperature: 18.55 C = 65.39 F Cap Strength: 1.44 C Lifted Index: 1.59 C Risk: Showers probable Lifted Index @300 mb: 1.40 C Lifted Index @700 mb: -1.19 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 94.52 J/kg Max Up Vert Vel: 13.75 m/s Conv Inhibition (B-): 0.07 J/kg Cap Strength: 1.25 C Lift Cond Lev (LCL): 764.98 mb = 2410.34 m = 7907.84 ft Lev Free Conv (LFC): 749.98 mb = 2574.70 m = 8447.09 ft Equ Level (EL): 649.98 mb = 3755.75 m = 12321.87 ft B at Equ Level: 47.61 J/kg Max Parcel Lev (MPL): 459.98 mb = 6503.17 m = 21335.58 ft Wind level data Storm motion: 67 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 ---------------------------------------------------------- 0 823 1798 60 5 -4.3 -2.5 | 259 3 2.9 0.6 1 92 17077 30 16 -8.0 -13.9 | 4 11 -0.8 -10.8 2 70 18660 270 26 26.0 -0.0 | 265 33 33.2 3.1 3 50 20640 295 22 19.9 -9.3 | 283 28 27.2 -6.2 4 30 23770 70 5 -4.7 -1.7 | 242 3 2.6 1.4 5 20 26370 90 51 -51.0 0.0 | 94 44 -43.8 3.1 Wind Parameters Mean winds (0-6000m): 37.0 at 10.5 knts Storm direction: 67.0 at 7.9 knts Storm rel Dir Shear (0-3000m): 146.1 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.20250426.23.gif