UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025051023.upa.cvt Date: 2300Z 10 MAY 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 10 MAY 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 16.4 15.1 92 1.3 15.5 0 0 306.0 308.5 295.7 345.7 13.21 1 795 2102 15.6 13.7 88 1.9 14.3 3 0 308.3 310.7 295.8 346.2 12.50 2 693 3253 9.2 7.2 87 2.0 8.0 12 0 313.6 315.3 294.8 342.3 9.24 3 665 3593 6.6 6.1 97 0.5 6.3 15 0 314.4 316.1 294.8 342.2 8.92 4 618 4191 2.8 2.6 99 0.2 2.7 21 1 316.7 318.1 294.4 340.3 7.49 5 597 4471 2.8 -2.1 70 4.9 0.2 23 1 319.8 320.9 293.7 337.6 5.50 6 594 4512 2.6 -2.4 70 5.0 -0.0 23 1 320.0 321.1 293.7 337.5 5.41 7 555 5057 -1.5 -2.9 90 1.4 -2.2 28 1 321.5 322.6 294.2 339.6 5.58 8 539 5290 -2.7 -3.4 95 0.7 -3.1 30 1 322.7 323.8 294.5 340.8 5.53 9 524 5514 -2.5 -7.5 68 5.0 -4.8 32 1 325.6 326.4 294.2 339.4 4.16 10 419 7259 -11.5 -23.5 36 12.0 -15.2 49 1 335.6 335.8 294.4 340.5 1.37 11 362 8362 -20.7 -24.7 70 4.0 -21.8 59 2 337.6 337.9 295.0 342.8 1.43 12 319 9285 -27.5 -32.0 65 4.5 -28.3 68 2 340.6 340.8 295.2 343.7 0.82 13 300 9725 -30.5 -39.5 41 9.0 -31.7 72 2 342.4 342.5 295.3 344.0 0.41 14 257 10806 -39.1 -52.1 24 13.0 -40.0 84 2 345.2 345.2 295.7 345.7 0.12 15 234 11443 -43.7 -61.7 12 18.0 -44.4 90 2 347.6 347.6 296.1 347.8 0.04 16 196 12608 -54.1 -60.1 48 6.0 -54.2 103 3 349.1 349.1 296.5 349.4 0.06 17 150 14272 -67.7 -75.7 31 8.0 -67.8 122 3 353.5 353.5 297.4 353.5 0.01 18 137 14816 -69.1 -77.1 30 8.0 -69.1 129 3 360.3 360.3 298.8 360.3 0.01 19 125 15360 -71.9 -82.9 18 11.0 -71.9 135 3 364.8 364.8 299.6 364.8 0.00 20 113 15949 -76.3 -85.3 23 9.0 -76.3 143 4 367.2 367.2 300.1 367.3 0.00 21 95 16939 -80.5 -88.5 25 8.0 -80.5 155 4 377.7 377.7 301.9 377.7 0.00 22 86 17513 -72.3 -78.3 40 6.0 -72.3 189 14 405.1 405.1 305.9 405.2 0.01 23 76 18234 -75.5 -86.5 16 11.0 -75.6 232 27 413.0 413.0 306.9 413.0 0.00 24 73 18467 -75.9 -85.9 19 10.0 -75.9 246 32 417.0 417.0 307.3 417.0 0.00 25 70 18710 -75.9 -85.9 19 10.0 -75.9 260 36 422.0 422.0 307.9 422.0 0.00 26 58 19801 -74.1 -85.1 17 11.0 -74.2 254 31 449.4 449.4 310.8 449.4 0.00 27 50 20680 -67.5 -85.5 6 18.0 -67.7 250 27 484.4 484.4 313.8 484.4 0.01 TRP 95 16939 -80.5 -88.5 25 8.0 -80.5 155 4 377.7 377.7 301.9 377.7 0.00 WND Sounding variables and indices Freezing level: 569.27 mb = 4857.41 m = 15936.20 ft Wetbulb zero: 594.44 mb = 4505.56 m = 14781.83 ft Precipitable water: 1.23 inches Sfc-500 mean rel hum: 86.02 % Est. max temperature: 24.05 C = 75.28 F Sfc-Lift cond lev (LCL): 808.40 mb = 1960.23 m = 6431.12 ft T: 15.97 C 700-500 lapse rate: 5.18 C/km Conv cond level (CCL): 727.27 mb = 2848.52 m = 9345.43 ft Mean mixing ratio: 11.76 g/kg Conv temperature: 21.79 C = 71.23 F Cap Strength: 1.05 C Lifted Index: 0.37 C Risk: Showers probable Lifted Index @300 mb: 0.59 C Lifted Index @700 mb: 0.45 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 82.14 J/kg Max Up Vert Vel: 12.82 m/s Conv Inhibition (B-): 19.15 J/kg Cap Strength: 1.05 C Lift Cond Lev (LCL): 752.23 mb = 2565.59 m = 8417.20 ft Lev Free Conv (LFC): 677.23 mb = 3442.85 m = 11295.30 ft Equ Level (EL): 517.23 mb = 5615.04 m = 18421.82 ft B at Equ Level: 78.93 J/kg Max Parcel Lev (MPL): 307.23 mb = 9554.20 m = 31345.41 ft Wind level data Storm motion: 185 at 2 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 | 5 2 -0.1 -1.5 1 95 16939 155 4 -1.7 3.6 | 139 3 -1.8 2.1 2 70 18710 260 36 35.5 6.3 | 262 36 35.3 4.8 3 50 20680 250 27 25.4 9.2 | 253 26 25.2 7.7 Wind Parameters Mean winds (0-6000m): 155.0 at 2.0 knts Storm direction: 185.0 at 1.5 knts Storm rel Dir Shear (0-3000m): 40.0 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.20250510.23.gif