UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100623.upa.cvt Date: 2300Z 6 OCT 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 6 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 824 1798 16.0 13.5 85 2.5 14.4 80 3 305.6 307.8 294.6 341.2 11.89 1 795 2100 13.4 13.1 98 0.3 13.2 83 3 306.0 308.2 294.8 342.0 12.01 2 664 3589 4.6 3.8 95 0.8 4.1 95 5 312.3 313.7 293.3 335.8 7.59 3 616 4196 1.0 0.1 94 0.9 0.5 101 6 314.9 316.1 293.0 334.7 6.27 4 495 5927 -6.9 -30.9 13 24.0 -12.9 116 8 325.6 325.7 291.0 327.7 0.59 5 478 6200 -5.7 -26.7 17 21.0 -11.8 119 8 330.3 330.5 292.7 333.6 0.90 6 431 7001 -12.5 -31.5 19 19.0 -17.0 126 9 331.6 331.7 292.8 333.9 0.64 7 407 7437 -13.9 -35.9 14 22.0 -18.5 130 9 335.3 335.3 293.6 336.9 0.44 8 380 7954 -18.3 -41.3 11 23.0 -22.1 135 10 336.1 336.2 293.6 337.2 0.27 9 307 9508 -30.7 -38.7 45 8.0 -31.8 150 12 339.9 340.0 294.7 341.6 0.44 10 263 10589 -38.7 -48.7 34 10.0 -39.5 161 13 343.5 343.5 295.3 344.2 0.17 11 255 10800 -40.9 -47.9 47 7.0 -41.4 163 13 343.3 343.4 295.3 344.1 0.20 12 250 10934 -42.1 -48.1 52 6.0 -42.5 165 14 343.5 343.5 295.3 344.3 0.20 13 232 11436 -46.1 -54.1 40 8.0 -46.5 170 14 344.8 344.8 295.6 345.3 0.11 14 200 12404 -54.7 -57.0 76 2.3 -54.8 180 16 346.1 346.2 295.8 346.5 0.09 15 167 13534 -63.7 -67.8 57 4.1 -63.7 193 17 349.4 349.5 296.5 349.6 0.02 16 159 13835 -64.5 -70.5 43 6.0 -64.6 197 18 353.0 353.0 297.3 353.1 0.02 17 150 14189 -66.9 -72.9 42 6.0 -67.0 201 18 354.8 354.8 297.7 354.9 0.01 18 135 14817 -72.3 -77.3 47 5.0 -72.3 208 19 356.1 356.1 298.0 356.2 0.01 19 128 15131 -71.3 -76.3 47 5.0 -71.3 212 20 363.4 363.4 299.4 363.4 0.01 20 111 15962 -77.1 -83.1 38 6.0 -77.1 222 21 367.6 367.6 300.1 367.6 0.00 21 88 17300 -75.7 -80.7 45 5.0 -75.7 239 23 395.7 395.7 304.6 395.7 0.01 22 84 17574 -69.3 -73.9 51 4.6 -69.4 242 23 414.0 414.0 307.0 414.1 0.02 23 70 18650 -73.9 -84.9 17 11.0 -74.0 255 25 426.3 426.3 308.4 426.3 0.00 24 63 19260 -76.3 -88.3 13 12.0 -76.3 245 24 434.0 434.0 309.3 434.0 0.00 25 55 20054 -70.5 -88.5 5 18.0 -70.6 195 23 464.5 464.5 312.2 464.5 0.00 26 50 20620 -69.9 -96.9 1 27.0 -70.1 160 23 478.8 478.8 313.4 478.8 0.00 27 39 22107 -68.7 -95.7 1 27.0 -68.9 115 49 517.1 517.1 316.1 517.1 0.00 28 34 22938 -64.8 -92.9 1 28.0 -65.3 90 64 547.9 547.9 318.0 547.9 0.00 29 30 23710 -61.3 -90.3 1 29.0 -62.1 95 61 577.5 577.5 319.5 577.5 0.00 TRP 63 19260 -76.3 -88.3 13 12.0 -76.3 245 24 434.0 434.0 309.3 434.0 0.00 WND 34 22938 -64.8 -92.9 1 28.0 -65.3 90 64 547.9 547.9 318.0 547.9 0.00 Sounding variables and indices Freezing level: 600.68 mb = 4414.74 m = 14483.87 ft Wetbulb zero: 611.58 mb = 4252.65 m = 13952.10 ft Precipitable water: 0.99 inches Sfc-500 mean rel hum: 77.96 % Est. max temperature: 21.80 C = 71.25 F Sfc-Lift cond lev (LCL): 793.90 mb = 2111.66 m = 6927.94 ft T: 13.33 C 700-500 lapse rate: 5.09 C/km Conv cond level (CCL): 760.84 mb = 2463.29 m = 8081.55 ft Mean mixing ratio: 11.09 g/kg Conv temperature: 17.81 C = 64.07 F Cap Strength: 0.19 C Lifted Index: 0.01 C Risk: Showers probable Lifted Index @300 mb: 1.84 C Lifted Index @700 mb: -0.69 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 121.61 J/kg Max Up Vert Vel: 15.60 m/s Conv Inhibition (B-): 0.43 J/kg Cap Strength: 0.19 C Lift Cond Lev (LCL): 765.32 mb = 2414.75 m = 7922.31 ft Lev Free Conv (LFC): 750.32 mb = 2578.40 m = 8459.22 ft Equ Level (EL): 490.32 mb = 6001.14 m = 19688.53 ft B at Equ Level: 116.32 J/kg Max Parcel Lev (MPL): 400.32 mb = 7561.80 m = 24808.74 ft Wind level data Storm motion: 284 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 ---------------------------------------------------------- 0 824 1798 80 3 -3.0 -0.5 | 99 13 -13.1 2.1 1 70 18650 255 25 24.1 6.5 | 237 17 14.0 9.1 2 63 19260 245 24 21.8 10.1 | 222 17 11.6 12.7 3 50 20620 160 23 -7.9 21.6 | 143 30 -18.0 24.2 4 34 22938 90 64 -64.0 0.0 | 92 74 -74.2 2.6 5 30 23710 95 61 -60.8 5.3 | 96 71 -70.9 7.9 Wind Parameters Mean winds (0-6000m): 254.3 at 14.0 knts Storm direction: 284.3 at 10.5 knts Storm rel Dir Shear (0-3000m): -54.0 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.20251006.23.gif