UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050323.upa.cvt Date: 2300Z 3 MAY 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 3 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 823 1798 18.4 14.9 80 3.5 16.0 0 0 308.3 310.7 296.1 347.8 13.06 1 794 2103 15.0 14.5 97 0.5 14.7 1 0 307.8 310.3 296.1 347.7 13.19 2 782 2231 14.0 14.0 100 0.0 14.0 1 1 308.1 310.5 296.0 347.3 12.96 3 735 2749 11.0 10.3 95 0.7 10.6 3 2 310.3 312.3 295.1 343.2 10.77 4 711 3026 11.4 7.2 75 4.2 8.8 4 2 313.7 315.4 294.7 341.7 9.00 5 664 3591 7.0 4.6 85 2.4 5.6 6 3 315.0 316.5 294.3 340.1 8.04 6 655 3703 6.2 3.7 84 2.5 4.8 6 3 315.3 316.8 294.1 339.3 7.65 7 617 4191 5.2 -3.8 52 9.0 0.6 8 4 319.6 320.5 293.0 334.7 4.68 8 610 4284 4.4 -4.6 52 9.0 -0.1 8 4 319.7 320.6 292.9 334.2 4.46 9 562 4943 -1.9 -6.1 73 4.2 -3.9 11 5 319.8 320.7 292.7 333.9 4.32 10 551 5100 -2.5 -6.1 76 3.6 -4.2 11 6 321.0 321.8 293.2 335.3 4.40 11 534 5348 -2.7 -13.7 42 11.0 -7.1 12 6 323.6 324.1 292.3 332.0 2.49 12 521 5543 -4.5 -9.5 68 5.0 -6.7 13 6 323.7 324.4 293.2 335.6 3.57 13 507 5756 -6.5 -11.3 69 4.8 -8.5 13 7 323.8 324.5 292.9 334.5 3.18 14 479 6199 -8.1 -11.2 78 3.1 -9.4 15 8 327.2 327.8 294.0 338.6 3.39 15 423 7155 -12.9 -25.9 33 13.0 -16.5 18 9 332.9 333.1 293.5 336.8 1.09 16 400 7580 -14.7 -31.7 22 17.0 -18.7 20 10 335.9 336.0 293.9 338.4 0.67 17 348 8621 -21.3 -46.3 9 25.0 -24.7 24 12 340.6 340.6 294.6 341.3 0.17 18 317 9301 -27.1 -39.1 31 12.0 -28.9 27 13 341.8 341.8 295.1 343.4 0.41 19 277 10258 -34.5 -49.5 20 15.0 -35.8 30 15 344.5 344.5 295.6 345.1 0.15 20 256 10805 -38.3 -40.8 77 2.5 -38.6 32 16 346.8 346.9 296.3 348.4 0.42 21 245 11106 -40.7 -42.3 84 1.6 -40.9 34 17 347.6 347.6 296.4 349.1 0.38 22 223 11739 -45.7 -60.7 17 15.0 -46.3 36 18 349.4 349.4 296.5 349.6 0.05 23 209 12168 -48.9 -58.9 30 10.0 -49.3 38 19 350.9 350.9 296.9 351.2 0.06 24 150 14258 -67.3 -72.1 50 4.8 -67.4 47 24 354.2 354.2 297.5 354.2 0.02 25 143 14544 -69.7 -74.3 51 4.6 -69.7 49 24 354.8 354.8 297.7 354.9 0.01 26 108 16168 -81.5 -87.5 35 6.0 -81.5 56 28 362.2 362.2 299.1 362.2 0.00 27 95 16883 -84.5 -90.5 34 6.0 -84.5 60 30 369.9 369.9 300.5 369.9 0.00 28 81 17794 -71.5 -73.5 74 2.0 -71.5 350 31 413.8 413.8 307.0 413.9 0.02 29 70 18650 -74.3 -82.3 28 8.0 -74.3 285 32 425.4 425.4 308.3 425.5 0.01 30 62 19358 -75.3 -84.3 23 9.0 -75.3 269 23 438.2 438.2 309.7 438.3 0.01 31 50 20630 -68.5 -87.5 5 19.0 -68.7 240 7 482.1 482.1 313.6 482.1 0.00 TRP 95 16883 -84.5 -90.5 34 6.0 -84.5 60 30 369.9 369.9 300.5 369.9 0.00 WND Sounding variables and indices Freezing level: 576.48 mb = 4744.34 m = 15565.23 ft Wetbulb zero: 610.97 mb = 4271.37 m = 14013.51 ft Precipitable water: 1.10 inches Sfc-500 mean rel hum: 75.24 % Est. max temperature: 24.51 C = 76.12 F Sfc-Lift cond lev (LCL): 781.43 mb = 2236.97 m = 7339.06 ft T: 13.96 C 700-500 lapse rate: 6.38 C/km ThetaE index: 13.88 C Layer 794.0- 551.0 mb Conv cond level (CCL): 759.79 mb = 2471.95 m = 8109.97 ft Mean mixing ratio: 12.16 g/kg Conv temperature: 19.21 C = 66.58 F Cap Strength: 1.36 C Lifted Index: -2.46 C Risk: Severe thunderstorms possible Lifted Index @300 mb: 0.50 C Lifted Index @700 mb: 0.94 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 187.65 J/kg Max Up Vert Vel: 19.37 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 1.32 C Lift Cond Lev (LCL): 761.45 mb = 2453.66 m = 8049.95 ft Lev Free Conv (LFC): 756.45 mb = 2508.77 m = 8230.78 ft Equ Level (EL): 726.45 mb = 2846.89 m = 9340.07 ft B at Equ Level: 16.42 J/kg Max Parcel Lev (MPL): 226.45 mb = 11635.96 m = 38175.25 ft Wind level data Storm motion: 90 at 11 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 0 0 -0.0 -0.0 | 270 11 11.2 -0.0 1 95 16883 60 30 -26.0 -15.0 | 44 21 -14.7 -15.0 2 70 18650 285 32 30.9 -8.3 | 281 43 42.2 -8.3 3 50 20630 240 7 6.1 3.5 | 259 18 17.3 3.5 Wind Parameters Mean winds (0-6000m): 60.0 at 15.0 knts Storm direction: 90.0 at 11.2 knts 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.20250503.23.gif