UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050123.upa.cvt Date: 2300Z 1 MAY 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 1 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 822 1798 17.2 14.7 85 2.5 15.5 0 0 307.1 309.5 295.7 346.0 12.90 1 793 2102 14.8 14.0 95 0.8 14.3 359 0 307.7 310.1 295.8 346.3 12.78 2 722 2887 10.4 8.3 87 2.1 9.1 355 1 311.2 313.0 294.5 340.6 9.57 3 663 3594 10.0 -5.0 34 15.0 2.5 352 2 318.5 319.2 292.1 331.4 3.98 4 617 4184 4.8 -9.2 35 14.0 -1.5 349 3 319.1 319.7 291.5 329.3 3.09 5 584 4629 2.0 -12.0 35 14.0 -3.9 347 4 320.9 321.4 291.6 329.6 2.61 6 569 4839 1.4 -8.6 47 10.0 -3.2 346 4 322.6 323.3 292.9 334.2 3.51 7 547 5155 1.2 -16.8 25 18.0 -5.7 344 4 326.0 326.4 292.4 332.5 1.88 8 537 5303 0.2 -13.8 34 14.0 -5.5 344 4 326.5 327.0 293.0 334.9 2.45 9 510 5714 -2.3 -30.3 10 28.0 -9.9 342 5 328.4 328.5 291.9 330.6 0.60 10 469 6372 -8.3 -10.9 81 2.6 -9.4 338 6 328.9 329.6 294.6 340.9 3.55 11 453 6641 -7.5 -23.5 27 16.0 -12.5 337 6 333.2 333.4 293.7 337.7 1.27 12 447 6745 -7.7 -22.7 29 15.0 -12.5 337 6 334.2 334.5 294.1 339.2 1.38 13 300 9718 -29.3 -44.3 22 15.0 -31.1 321 11 344.1 344.1 295.6 345.1 0.25 14 257 10802 -38.3 -52.3 22 14.0 -39.3 315 12 346.4 346.4 295.9 346.9 0.12 15 164 13738 -61.7 -71.7 25 10.0 -61.8 298 17 354.6 354.6 297.6 354.7 0.01 16 150 14284 -66.5 -72.5 43 6.0 -66.5 294 18 355.5 355.5 297.8 355.6 0.01 17 137 14826 -71.7 -78.7 34 7.0 -71.8 291 19 355.7 355.7 297.8 355.7 0.01 18 106 16303 -81.3 -89.3 25 8.0 -81.3 281 22 364.5 364.5 299.5 364.5 0.00 19 93 17045 -78.1 -84.1 37 6.0 -78.1 276 23 384.7 384.7 303.0 384.7 0.00 20 78 18041 -81.5 -87.5 35 6.0 -81.5 269 25 397.5 397.5 304.9 397.5 0.00 21 70 18670 -67.7 -77.7 23 10.0 -67.8 265 26 439.5 439.6 309.8 439.6 0.01 TRP WND Sounding variables and indices Freezing level: 534.84 mb = 5336.25 m = 17507.17 ft Wetbulb zero: 634.36 mb = 3956.34 m = 12979.94 ft Precipitable water: 0.89 inches Sfc-500 mean rel hum: 51.83 % Est. max temperature: 26.86 C = 80.35 F Sfc-Lift cond lev (LCL): 792.09 mb = 2111.61 m = 6927.77 ft T: 14.75 C 700-500 lapse rate: 5.12 C/km ThetaE index: 17.05 C Layer 722.0- 584.0 mb Conv cond level (CCL): 739.75 mb = 2683.41 m = 8803.72 ft Mean mixing ratio: 11.63 g/kg Conv temperature: 20.25 C = 68.46 F Cap Strength: 3.18 C Lifted Index: 1.36 C Risk: Showers probable Lifted Index @300 mb: 2.32 C Lifted Index @700 mb: 1.30 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 18.03 J/kg Max Up Vert Vel: 6.00 m/s Conv Inhibition (B-): 4299.78 J/kg Cap Strength: 3.08 C Lift Cond Lev (LCL): 754.68 mb = 2516.22 m = 8255.22 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 295 at 10 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 ---------------------------------------------------------- 0 822 1798 0 0 -0.0 -0.0 | 115 10 -8.8 4.1 1 70 18670 265 26 25.9 2.3 | 249 18 17.1 6.4 Wind Parameters Mean winds (0-6000m): 265.0 at 13.0 knts Storm direction: 295.0 at 9.8 knts Storm rel Dir Shear (0-3000m): -70.0 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.20250501.23.gif