UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025043023.upa.cvt Date: 2300Z 30 APR 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 30 APR 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 15.5 307.1 309.5 295.7 346.0 12.90 1 794 14.8 13.9 94 0.9 14.2 307.6 310.0 295.7 345.9 12.68 2 663 9.4 -8.6 27 18.0 1.1 317.8 318.4 291.0 327.6 3.01 3 648 8.4 -15.6 17 24.0 -1.2 318.7 319.1 290.2 324.6 1.75 4 616 4.6 -6.4 45 11.0 -0.7 319.0 319.8 292.2 331.6 3.85 5 591 3.2 -8.8 41 12.0 -2.3 321.2 321.9 292.3 332.2 3.33 6 571 0.6 -3.8 72 4.4 -1.6 321.3 322.3 293.8 337.8 5.06 7 544 -2.1 -12.1 46 10.0 -6.2 322.6 323.1 292.2 331.9 2.78 8 526 -3.1 -24.1 18 21.0 -9.6 324.5 324.7 291.2 328.2 1.04 9 495 -4.3 -12.3 54 8.0 -7.7 328.7 329.3 294.1 339.0 3.01 10 484 -4.3 -18.3 33 14.0 -9.4 330.9 331.2 293.7 337.4 1.87 11 478 -5.1 -21.1 27 16.0 -10.5 331.1 331.4 293.4 336.3 1.49 12 424 -11.9 -29.9 21 18.0 -16.4 333.9 334.1 293.5 336.7 0.75 13 400 -15.7 -19.4 73 3.7 -16.9 334.6 335.0 294.8 341.9 2.06 14 370 -17.7 -32.7 26 15.0 -21.0 339.5 339.6 294.8 342.0 0.66 15 353 -19.9 -33.9 28 14.0 -22.8 341.1 341.2 295.1 343.5 0.62 16 321 -26.5 -34.5 47 8.0 -27.9 341.4 341.5 295.2 343.8 0.64 17 295 -30.7 -46.7 19 16.0 -32.4 343.8 343.8 295.4 344.5 0.19 18 257 -38.5 -46.5 43 8.0 -39.2 346.1 346.1 296.0 347.0 0.23 19 216 -48.1 -49.5 85 1.4 -48.2 348.8 348.9 296.5 349.6 0.19 20 200 -52.3 -55.8 66 3.5 -52.4 349.9 350.0 296.7 350.4 0.10 21 167 -62.3 -65.9 62 3.6 -62.4 351.8 351.8 297.0 351.9 0.03 22 141 -68.3 -75.3 36 7.0 -68.4 358.7 358.7 298.5 358.8 0.01 23 126 -73.9 -82.9 24 9.0 -73.9 360.3 360.3 298.8 360.3 0.00 24 117 -77.9 -85.9 26 8.0 -77.9 360.7 360.7 298.8 360.7 0.00 25 110 -79.9 -86.9 30 7.0 -79.9 363.3 363.3 299.4 363.3 0.00 TRP WND Sounding variables and indices Freezing level: 565.00 mb = -9999.00 m = -9999.00 ft Wetbulb zero: 655.76 mb = -9999.00 m = -9999.00 ft Precipitable water: 0.84 inches Sfc-500 mean rel hum: 51.06 % Est. max temperature: 26.59 C = 79.86 F Sfc-Lift cond lev (LCL): 792.09 mb = -9999.00 m = -9999.00 ft T: 14.73 C ThetaE index: 21.33 C Layer 794.0- 616.0 mb Conv cond level (CCL): 641.62 mb = -9999.00 m = -9999.00 ft Mean mixing ratio: 10.32 g/kg Conv temperature: 28.28 C = 82.90 F Cap Strength: 3.64 C Lifted Index: 2.29 C Risk: None Lifted Index @300 mb: 3.66 C Lifted Index @700 mb: 3.04 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.00 J/kg Max Up Vert Vel: 0.00 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 3.59 C Lift Cond Lev (LCL): 728.68 mb = -9999.00 m = -9999.00 ft Lev Free Conv (LFC): 723.68 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 110 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 80 3 -3.0 -0.5 | 33 2 -0.8 -1.3 Wind Parameters Mean winds (0-6000m): 80.0 at 3.0 knts Storm direction: 110.0 at 2.2 knts 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.20250531.23.gif