UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025052723.upa.cvt Date: 2300Z 27 MAY 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 27 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 827 1798 15.6 14.0 90 1.6 14.6 0 0 304.9 307.1 294.7 341.5 12.24 1 797 2109 13.6 13.1 97 0.5 13.3 359 0 306.0 308.2 294.8 341.9 11.98 2 666 3596 5.6 4.7 94 0.9 5.1 353 1 313.1 314.7 293.9 338.2 8.07 3 656 3719 4.8 3.9 94 0.9 4.3 352 2 313.6 315.0 293.7 337.7 7.74 4 644 3869 4.0 2.5 90 1.5 3.1 351 2 314.3 315.7 293.5 336.7 7.14 5 632 4022 5.0 -3.0 56 8.0 0.9 351 2 317.2 318.1 292.4 332.7 4.85 6 619 4191 3.8 -5.2 52 9.0 -0.6 350 2 317.7 318.5 292.0 331.2 4.20 7 613 4270 3.2 -7.8 44 11.0 -1.9 350 2 317.9 318.5 291.5 329.2 3.47 8 563 4952 -1.7 -8.7 59 7.0 -4.8 347 3 319.9 320.6 292.1 331.5 3.52 9 547 5181 -2.3 -4.3 86 2.0 -3.3 346 3 321.9 322.9 293.9 338.4 5.09 10 533 5386 -3.7 -5.1 90 1.4 -4.4 345 3 322.6 323.5 294.0 338.7 4.92 11 518 5611 -3.5 -12.5 50 9.0 -7.2 344 3 325.5 326.0 293.0 335.0 2.83 12 500 5889 -5.7 -16.7 42 11.0 -9.8 343 3 326.1 326.5 292.6 333.2 2.07 13 451 6691 -9.9 -25.9 26 16.0 -14.4 339 4 330.6 330.8 292.9 334.3 1.03 14 400 7604 -16.7 -21.1 69 4.4 -18.0 335 5 333.3 333.6 294.2 339.6 1.78 15 377 8048 -17.9 -33.9 23 16.0 -21.2 333 5 337.4 337.5 294.2 339.6 0.58 16 367 8248 -18.5 -39.5 14 21.0 -22.2 332 6 339.2 339.3 294.4 340.5 0.34 17 346 8685 -21.7 -53.7 4 32.0 -25.3 330 6 340.6 340.6 294.6 340.9 0.07 18 257 10803 -38.1 -51.1 24 13.0 -39.1 320 8 346.7 346.7 296.0 347.2 0.14 19 233 11469 -44.1 -52.1 41 8.0 -44.6 316 9 347.4 347.5 296.2 348.0 0.13 20 208 12221 -50.1 -60.1 30 10.0 -50.4 312 10 349.5 349.5 296.5 349.7 0.06 21 178 13219 -58.5 -60.6 77 2.1 -58.6 307 11 351.7 351.7 297.0 351.9 0.06 22 143 14559 -69.7 -73.4 58 3.7 -69.7 300 12 354.8 354.8 297.7 354.9 0.01 23 134 14948 -68.5 -72.5 56 4.0 -68.5 297 13 363.6 363.6 299.4 363.7 0.02 24 120 15601 -73.3 -80.3 34 7.0 -73.3 294 13 366.5 366.5 299.9 366.5 0.01 25 110 16107 -76.5 -82.5 38 6.0 -76.5 291 14 369.7 369.7 300.5 369.7 0.00 26 97 16837 -73.5 -78.5 46 5.0 -73.5 286 15 389.1 389.1 303.6 389.1 0.01 27 84 17679 -72.9 -79.9 34 7.0 -72.9 281 16 406.7 406.7 306.1 406.7 0.01 28 70 18740 -76.1 -85.1 23 9.0 -76.2 275 17 421.6 421.6 307.9 421.6 0.00 29 52 20475 -72.5 -94.5 2 22.0 -72.6 262 12 467.4 467.4 312.4 467.4 0.00 30 50 20710 -65.3 -92.3 1 27.0 -65.6 260 11 489.6 489.6 314.2 489.6 0.00 31 43 21636 -61.3 -90.3 1 29.0 -61.9 208 18 521.0 521.0 316.4 521.0 0.00 32 39 22239 -63.3 -91.3 1 28.0 -63.8 175 22 530.7 530.7 316.9 530.7 0.00 33 30 23870 -58.3 -88.3 1 30.0 -59.4 85 34 585.7 585.7 319.9 585.7 0.01 TRP WND Sounding variables and indices Freezing level: 580.35 mb = 4715.31 m = 15469.98 ft Wetbulb zero: 624.02 mb = 4125.11 m = 13533.65 ft Precipitable water: 1.04 inches Sfc-500 mean rel hum: 77.55 % Est. max temperature: 22.79 C = 73.03 F Sfc-Lift cond lev (LCL): 807.68 mb = 1997.17 m = 6552.30 ft T: 14.32 C 700-500 lapse rate: 5.00 C/km Conv cond level (CCL): 759.13 mb = 2512.22 m = 8242.08 ft Mean mixing ratio: 11.25 g/kg Conv temperature: 18.49 C = 65.27 F Cap Strength: 1.23 C Lifted Index: 0.67 C Risk: Showers probable Lifted Index @300 mb: 3.87 C Lifted Index @700 mb: -0.17 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 38.98 J/kg Max Up Vert Vel: 8.83 m/s Conv Inhibition (B-): 2.79 J/kg Cap Strength: 1.19 C Lift Cond Lev (LCL): 767.70 mb = 2419.30 m = 7937.25 ft Lev Free Conv (LFC): 722.70 mb = 2919.32 m = 9577.72 ft Equ Level (EL): 632.70 mb = 4012.88 m = 13165.46 ft B at Equ Level: 28.63 J/kg Max Parcel Lev (MPL): 472.70 mb = 6325.62 m = 20753.11 ft Wind level data Storm motion: 305 at 6 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 ---------------------------------------------------------- 0 827 1798 0 0 -0.0 -0.0 | 125 6 -5.2 3.7 1 70 18740 275 17 16.9 -1.5 | 259 12 11.7 2.2 2 50 20710 260 11 10.8 1.9 | 225 8 5.6 5.6 3 30 23870 85 34 -33.9 -3.0 | 91 39 -39.1 0.7 Wind Parameters Mean winds (0-6000m): 275.0 at 8.5 knts Storm direction: 305.0 at 6.4 knts Storm rel Dir Shear (0-3000m): -80.0 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.20250527.23.gif