UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050823.upa.cvt Date: 2300Z 8 MAY 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 8 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 824 1798 16.6 14.6 88 2.0 15.3 0 0 306.2 308.6 295.4 344.6 12.79 1 795 2102 15.0 14.3 96 0.7 14.6 358 0 307.7 310.1 296.0 347.0 13.00 2 665 3590 7.4 4.2 80 3.2 5.5 348 1 315.3 316.8 294.3 339.7 7.80 3 656 3702 7.0 3.0 76 4.0 4.7 348 1 316.1 317.4 294.0 338.9 7.26 4 618 4189 3.4 1.5 87 1.9 2.3 344 2 317.4 318.7 294.1 339.3 6.92 5 593 4523 1.0 0.2 94 0.8 0.5 342 2 318.3 319.6 294.1 339.3 6.56 6 552 5097 -0.9 -5.8 69 4.9 -3.3 338 3 322.7 323.6 293.7 337.5 4.50 7 520 5571 -3.9 -5.2 91 1.3 -4.6 335 3 324.6 325.6 294.6 341.1 5.00 8 507 5770 -4.9 -9.9 68 5.0 -7.1 334 3 325.8 326.5 293.7 337.7 3.56 9 470 6362 -8.7 -12.1 76 3.4 -10.1 330 4 328.2 328.8 294.1 339.1 3.22 10 457 6579 -8.7 -19.7 41 11.0 -12.5 328 4 330.8 331.2 293.6 337.0 1.75 11 411 7392 -14.9 -19.5 68 4.6 -16.4 322 5 333.0 333.4 294.3 340.0 1.99 12 400 7597 -15.7 -24.7 46 9.0 -18.2 321 5 334.6 334.8 294.1 339.3 1.29 13 377 8041 -19.3 -23.7 68 4.4 -20.5 318 5 335.5 335.8 294.6 340.9 1.50 14 349 8611 -22.5 -32.5 40 10.0 -24.5 314 6 338.7 338.9 294.7 341.4 0.71 15 325 9130 -26.7 -28.3 86 1.6 -27.1 310 6 339.9 340.1 295.3 344.1 1.14 16 291 9919 -32.7 -32.9 98 0.2 -32.7 304 7 342.3 342.4 295.6 345.4 0.82 17 257 10783 -39.1 -46.1 47 7.0 -39.7 297 8 345.2 345.2 295.8 346.2 0.24 18 209 12164 -51.3 -55.1 64 3.8 -51.4 286 9 347.1 347.2 296.1 347.6 0.10 19 168 13545 -63.3 -68.1 52 4.8 -63.4 274 10 349.5 349.5 296.5 349.6 0.02 20 128 15173 -74.3 -79.3 46 5.0 -74.3 259 12 358.0 358.0 298.3 358.0 0.01 21 119 15600 -71.7 -76.7 47 5.0 -71.7 255 13 370.3 370.3 300.6 370.3 0.01 22 98 16734 -75.9 -82.9 32 7.0 -75.9 245 14 383.3 383.3 302.8 383.3 0.00 23 82 17772 -72.9 -79.9 34 7.0 -72.9 266 13 409.5 409.5 306.5 409.5 0.01 24 70 18700 -73.1 -86.1 12 13.0 -73.2 285 13 428.0 428.0 308.6 428.0 0.00 25 57 19914 -66.3 -94.3 1 28.0 -66.5 288 17 469.3 469.3 312.6 469.3 0.00 26 50 20700 -67.5 -94.5 1 27.0 -67.7 290 19 484.4 484.4 313.8 484.4 0.00 27 44 21469 -68.3 -95.3 1 27.0 -68.5 500.5 500.5 315.0 500.5 0.00 TRP 98 16734 -75.9 -82.9 32 7.0 -75.9 245 14 383.3 383.3 302.8 383.3 0.00 WND Sounding variables and indices Freezing level: 571.42 mb = 4824.82 m = 15829.26 ft Wetbulb zero: 587.11 mb = 4602.74 m = 15100.66 ft Precipitable water: 1.22 inches Sfc-500 mean rel hum: 84.58 % Est. max temperature: 24.60 C = 76.28 F Sfc-Lift cond lev (LCL): 799.92 mb = 2049.32 m = 6723.39 ft T: 15.28 C 700-500 lapse rate: 5.59 C/km Conv cond level (CCL): 737.87 mb = 2723.40 m = 8934.94 ft Mean mixing ratio: 11.89 g/kg Conv temperature: 20.97 C = 69.74 F Cap Strength: 0.73 C Lifted Index: -0.81 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.11 C Lifted Index @700 mb: 0.36 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 139.38 J/kg Max Up Vert Vel: 16.70 m/s Conv Inhibition (B-): 19.41 J/kg Cap Strength: 0.73 C Lift Cond Lev (LCL): 758.05 mb = 2498.41 m = 8196.80 ft Lev Free Conv (LFC): 643.05 mb = 3865.12 m = 12680.68 ft Equ Level (EL): 453.05 mb = 6645.68 m = 21803.14 ft B at Equ Level: 102.46 J/kg Max Parcel Lev (MPL): 203.05 mb = 12346.12 m = 40505.15 ft Wind level data Storm motion: 275 at 5 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 0 0 -0.0 -0.0 | 95 5 -5.2 0.5 1 98 16734 245 14 12.7 5.9 | 229 10 7.5 6.4 2 70 18700 285 13 12.6 -3.4 | 292 8 7.3 -2.9 3 50 20700 290 19 17.9 -6.5 | 296 14 12.6 -6.0 Wind Parameters Mean winds (0-6000m): 245.0 at 7.0 knts Storm direction: 275.0 at 5.2 knts Storm rel Dir Shear (0-3000m): -50.0 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.20250508.23.gif