UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025062023.upa.cvt Date: 2300Z 20 JUN 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 20 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 825 1798 14.4 13.1 92 1.3 13.6 0 0 303.8 306.0 293.9 338.2 11.56 1 807 1984 15.8 12.9 83 2.9 13.9 359 1 307.2 309.4 294.9 342.4 11.67 2 796 2100 14.8 12.9 88 1.9 13.6 358 1 307.4 309.6 295.1 343.1 11.83 3 700 3171 7.6 7.2 97 0.4 7.3 352 4 310.9 312.6 294.1 339.0 9.15 4 665 3593 7.2 4.6 84 2.6 5.6 350 5 315.0 316.6 294.4 340.2 8.03 5 635 3972 6.2 -0.8 61 7.0 2.4 348 6 318.1 319.2 293.4 336.3 5.69 6 618 4193 4.8 -1.2 65 6.0 1.6 347 7 319.0 320.1 293.6 337.2 5.68 7 610 4299 4.4 -3.6 56 8.0 0.3 346 7 319.7 320.6 293.1 335.3 4.81 8 560 4990 0.6 -5.4 64 6.0 -2.4 342 10 323.1 324.0 293.9 338.2 4.57 9 500 5887 -6.9 -9.3 83 2.4 -7.9 337 12 324.6 325.4 293.6 337.2 3.78 10 488 6076 -8.5 -12.6 72 4.1 -10.1 336 13 324.9 325.5 293.0 334.9 2.98 11 480 6204 -7.3 -36.3 8 29.0 -13.7 335 13 327.9 328.0 291.5 329.3 0.36 12 453 6653 -10.3 -27.3 23 17.0 -14.9 332 15 329.7 329.8 292.5 332.9 0.90 13 423 7177 -14.3 -21.3 55 7.0 -16.4 329 17 331.1 331.4 293.6 336.9 1.65 14 406 7487 -16.1 -28.1 35 12.0 -19.1 327 18 332.6 332.8 293.3 336.0 0.93 15 343 8733 -25.5 -32.5 52 7.0 -26.8 319 22 336.3 336.5 294.1 339.0 0.73 16 312 9414 -30.1 -42.1 30 12.0 -31.6 315 24 339.1 339.2 294.4 340.3 0.30 17 294 9834 -33.5 -44.5 32 11.0 -34.6 312 26 340.1 340.2 294.6 341.1 0.25 18 256 10790 -41.5 -47.5 52 6.0 -41.9 306 29 342.0 342.1 295.0 342.9 0.20 19 200 12415 -55.5 -57.7 76 2.2 -55.6 294 35 344.9 344.9 295.6 345.2 0.08 20 192 12674 -57.7 -60.8 68 3.1 -57.8 292 36 345.4 345.4 295.7 345.6 0.06 21 158 13881 -65.7 -69.2 62 3.5 -65.7 283 41 351.6 351.6 297.0 351.7 0.02 22 144 14442 -67.7 -74.7 36 7.0 -67.8 279 43 357.6 357.6 298.2 357.7 0.01 23 134 14878 -65.1 -74.1 28 9.0 -65.2 276 45 369.7 369.7 300.5 369.7 0.01 24 124 15348 -67.5 -79.5 17 12.0 -67.6 272 47 373.6 373.6 301.2 373.6 0.01 25 86 17509 -75.7 -89.7 9 14.0 -75.7 255 56 398.3 398.3 305.0 398.3 0.00 26 70 18700 -75.5 -97.5 2 22.0 -75.6 255 28 422.9 422.9 308.0 422.9 0.00 27 65 19128 -76.1 -101.1 1 25.0 -76.2 430.6 430.6 308.9 430.6 0.00 TRP 86 17509 -75.7 -89.7 9 14.0 -75.7 255 56 398.3 398.3 305.0 398.3 0.00 WND Sounding variables and indices Freezing level: 555.20 mb = 5061.98 m = 16607.35 ft Wetbulb zero: 604.20 mb = 4376.61 m = 14358.78 ft Precipitable water: 1.07 inches Sfc-500 mean rel hum: 77.82 % Est. max temperature: 23.88 C = 74.99 F Sfc-Lift cond lev (LCL): 809.26 mb = 1960.69 m = 6432.63 ft T: 15.62 C 700-500 lapse rate: 5.34 C/km ThetaE index: 4.07 C Layer 700.0- 665.0 mb Conv cond level (CCL): 741.44 mb = 2692.16 m = 8832.44 ft Mean mixing ratio: 11.06 g/kg Conv temperature: 19.63 C = 67.34 F Cap Strength: 2.02 C Lifted Index: -0.71 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.86 C Lifted Index @700 mb: -0.51 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 31.01 J/kg Max Up Vert Vel: 7.87 m/s Conv Inhibition (B-): 6.19 J/kg Cap Strength: 1.99 C Lift Cond Lev (LCL): 755.76 mb = 2532.77 m = 8309.50 ft Lev Free Conv (LFC): 720.76 mb = 2927.94 m = 9605.97 ft Equ Level (EL): 680.76 mb = 3400.65 m = 11156.84 ft B at Equ Level: 18.69 J/kg Max Parcel Lev (MPL): 640.76 mb = 3897.77 m = 12787.80 ft Wind level data Storm motion: 285 at 21 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 ---------------------------------------------------------- 0 825 1798 0 0 -0.0 -0.0 | 105 21 -20.3 5.4 1 86 17509 255 56 54.1 14.5 | 239 39 33.8 19.9 2 70 18700 255 28 27.0 7.2 | 208 14 6.8 12.7 Wind Parameters Mean winds (0-6000m): 255.0 at 28.0 knts Storm direction: 285.0 at 21.0 knts Storm rel Dir Shear (0-3000m): -60.0 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.20250620.23.gif