UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101500.upa.cvt Date: 0000Z 15 OCT 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:0000Z 15 OCT 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 15.0 10.4 74 4.6 12.1 0 0 304.8 306.6 292.7 333.8 9.68 1 793 2100 13.4 11.1 86 2.3 11.9 358 0 306.2 308.2 293.8 337.9 10.53 2 744 2632 9.4 9.1 98 0.3 9.2 354 0 307.5 309.3 293.6 337.2 9.80 3 732 2767 11.4 6.4 71 5.0 8.4 353 0 311.1 312.7 293.4 336.6 8.27 4 721 2893 11.0 3.0 58 8.0 6.5 353 0 312.0 313.3 292.4 332.6 6.60 5 700 3138 8.6 4.3 74 4.3 6.1 351 0 312.0 313.4 293.1 335.1 7.46 6 687 3293 9.2 -2.8 43 12.0 3.1 350 0 314.4 315.2 291.3 328.8 4.53 7 662 3598 7.2 -9.8 29 17.0 -0.3 348 0 315.5 316.0 290.1 324.4 2.74 8 636 3927 6.6 -22.4 10 29.0 -3.3 345 1 318.4 318.6 289.3 321.8 1.00 9 616 4188 4.2 -22.8 12 27.0 -4.7 344 1 318.6 318.8 289.3 322.0 0.99 10 603 4361 3.4 -21.6 14 25.0 -5.0 342 1 319.6 319.8 289.8 323.5 1.13 11 579 4688 0.6 -9.4 47 10.0 -3.8 340 1 320.1 320.7 291.9 330.7 3.24 12 540 5245 -1.3 -26.3 13 25.0 -8.7 336 1 324.2 324.4 290.9 327.2 0.83 13 476 6235 -9.1 -33.1 12 24.0 -14.6 329 1 326.5 326.6 291.2 328.3 0.49 14 366 8227 -19.7 -44.7 9 25.0 -23.4 314 2 337.9 337.9 294.0 338.6 0.19 15 286 10009 -33.1 -58.1 6 25.0 -34.8 300 2 343.4 343.4 295.2 343.6 0.05 16 265 10541 -37.1 -55.1 14 18.0 -38.3 296 2 345.1 345.1 295.6 345.5 0.08 17 255 10806 -39.3 -56.3 15 17.0 -40.3 293 2 345.7 345.7 295.7 346.0 0.07 18 206 12227 -52.3 -63.3 25 11.0 -52.6 281 3 347.0 347.0 296.0 347.2 0.04 19 165 13627 -63.3 -68.3 51 5.0 -63.4 269 3 351.3 351.3 297.0 351.4 0.02 20 128 15141 -75.7 -81.7 38 6.0 -75.7 254 4 355.5 355.5 297.8 355.5 0.00 21 110 16010 -79.1 -85.1 37 6.0 -79.1 246 4 364.8 364.8 299.6 364.8 0.00 22 101 16499 -76.5 -81.0 49 4.5 -76.5 241 4 378.8 378.8 302.1 378.9 0.01 23 99 16614 -76.7 -81.0 50 4.3 -76.7 240 4 380.6 380.6 302.3 380.7 0.01 24 81 17767 -77.1 -82.1 45 5.0 -77.1 228 5 402.3 402.3 305.5 402.3 0.01 25 76 18137 -73.5 -78.5 46 5.0 -73.5 225 5 417.2 417.2 307.4 417.3 0.01 26 70 18620 -71.5 -79.5 29 8.0 -71.6 220 5 431.4 431.4 309.0 431.5 0.01 TRP WND Sounding variables and indices Freezing level: 566.68 mb = 4863.99 m = 15957.77 ft Wetbulb zero: 664.04 mb = 3572.93 m = 11722.07 ft Precipitable water: 0.64 inches Sfc-500 mean rel hum: 42.63 % Est. max temperature: 24.69 C = 76.44 F Sfc-Lift cond lev (LCL): 767.25 mb = 2375.43 m = 7793.31 ft T: 11.33 C 700-500 lapse rate: 5.41 C/km ThetaE index: 5.31 C Layer 744.0- 700.0 mb Conv cond level (CCL): 662.98 mb = 3586.20 m = 11765.59 ft Mean mixing ratio: 9.72 g/kg Conv temperature: 25.07 C = 77.12 F Cap Strength: 3.97 C Lifted Index: 2.12 C Risk: None Lifted Index @300 mb: 5.57 C Lifted Index @700 mb: 1.99 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 24.71 J/kg Max Up Vert Vel: 7.03 m/s Conv Inhibition (B-): 6820.23 J/kg Cap Strength: 3.74 C Lift Cond Lev (LCL): 741.59 mb = 2658.88 m = 8723.24 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 250 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 ---------------------------------------------------------- 0 822 1798 0 0 -0.0 -0.0 | 70 2 -1.8 -0.6 1 70 18620 220 5 3.2 3.8 | 204 4 1.5 3.2 Wind Parameters Mean winds (0-6000m): 220.0 at 2.5 knts Storm direction: 250.0 at 1.9 knts Storm rel Dir Shear (0-3000m): -25.0 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.20251015.00.gif