UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050523.upa.cvt Date: 2300Z 5 MAY 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 5 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 825 1798 16.6 15.1 91 1.5 15.6 0 0 306.1 308.6 295.7 345.8 13.20 1 796 2101 14.6 14.5 99 0.1 14.6 358 0 307.2 309.6 295.9 346.8 13.16 2 665 3597 6.0 5.8 99 0.2 5.9 350 1 313.7 315.4 294.5 340.9 8.74 3 618 4194 2.8 2.7 99 0.1 2.7 347 2 316.7 318.1 294.4 340.5 7.55 4 545 5199 -3.7 -6.1 83 2.4 -4.8 341 2 320.5 321.4 293.0 335.0 4.45 5 519 5586 -3.7 -7.1 77 3.4 -5.3 338 3 325.0 325.9 294.1 339.4 4.33 6 510 5724 -4.7 -7.8 79 3.1 -6.1 338 3 325.5 326.3 294.1 339.3 4.17 7 481 6183 -6.9 -22.9 27 16.0 -11.9 335 3 328.2 328.5 292.4 332.7 1.26 8 423 7174 -13.3 -21.3 51 8.0 -15.8 329 4 332.3 332.7 293.9 338.2 1.65 9 411 7393 -13.9 -31.9 20 18.0 -18.1 328 4 334.3 334.4 293.5 336.7 0.64 10 400 7599 -15.3 -22.3 55 7.0 -17.4 326 4 335.1 335.4 294.5 340.8 1.60 11 379 8005 -17.1 -35.1 19 18.0 -20.8 324 4 337.9 338.0 294.3 339.9 0.51 12 362 8347 -20.1 -21.9 86 1.8 -20.6 322 5 338.4 338.8 295.5 345.0 1.83 13 350 8597 -21.5 -30.5 44 9.0 -23.5 320 5 339.8 340.0 295.0 343.0 0.86 14 317 9319 -27.3 -29.4 82 2.1 -27.8 315 5 341.5 341.7 295.6 345.4 1.06 15 289 9980 -31.5 -40.5 41 9.0 -32.7 311 6 344.6 344.7 295.8 346.2 0.39 16 257 10798 -39.1 -47.1 42 8.0 -39.8 306 7 345.2 345.2 295.7 346.1 0.21 17 238 11321 -43.1 -55.1 26 12.0 -43.7 302 7 346.8 346.9 296.0 347.2 0.09 18 210 12151 -50.7 -58.7 38 8.0 -51.0 296 8 347.6 347.6 296.1 347.9 0.07 19 189 12829 -56.3 -57.9 82 1.6 -56.3 291 8 349.2 349.2 296.5 349.6 0.08 20 144 14501 -70.5 -74.6 55 4.1 -70.5 279 10 352.7 352.7 297.3 352.8 0.01 21 126 15282 -76.3 -81.2 46 4.9 -76.3 272 11 356.0 356.0 297.9 356.0 0.00 22 117 15710 -76.5 -81.0 49 4.5 -76.5 269 11 363.2 363.2 299.3 363.3 0.00 23 104 16382 -80.3 -85.1 44 4.8 -80.3 263 12 368.4 368.4 300.3 368.4 0.00 24 98 16725 -71.3 -73.6 71 2.3 -71.3 261 12 392.2 392.2 304.1 392.3 0.02 25 89 17290 -74.7 -81.7 33 7.0 -74.7 256 13 396.4 396.4 304.7 396.4 0.01 26 85 17558 -73.7 -79.7 39 6.0 -73.7 254 13 403.7 403.7 305.7 403.7 0.01 27 70 18690 -74.7 -82.7 28 8.0 -74.7 245 14 424.6 424.6 308.2 424.6 0.01 28 66 19033 -74.1 -83.1 24 9.0 -74.2 256 15 433.1 433.1 309.1 433.1 0.01 29 50 20680 -67.7 -90.7 2 23.0 -67.9 310 19 484.0 484.0 313.8 484.0 0.00 30 46 21181 -66.3 -94.3 1 28.0 -66.6 328 17 499.0 499.0 314.9 499.0 0.00 31 44 21451 -62.9 -91.9 1 29.0 -63.4 338 16 513.7 513.7 315.9 513.7 0.00 32 30 23820 -59.3 -89.3 1 30.0 -60.3 60 8 583.0 583.0 319.8 583.0 0.00 33 27 24477 -61.5 -90.5 1 29.0 -62.3 594.6 594.6 320.3 594.7 0.00 TRP WND Sounding variables and indices Freezing level: 586.55 mb = 4626.90 m = 15179.93 ft Wetbulb zero: 591.78 mb = 4540.57 m = 14896.69 ft Precipitable water: 1.23 inches Sfc-500 mean rel hum: 92.98 % Est. max temperature: 23.25 C = 73.84 F Sfc-Lift cond lev (LCL): 806.99 mb = 1985.06 m = 6512.57 ft T: 15.37 C 700-500 lapse rate: 5.13 C/km Conv cond level (CCL): 768.37 mb = 2395.13 m = 7857.94 ft Mean mixing ratio: 12.27 g/kg Conv temperature: 18.79 C = 65.82 F Cap Strength: 0.08 C Lifted Index: -0.81 C Risk: Thunderstorms probable Lifted Index @300 mb: 1.11 C Lifted Index @700 mb: -0.82 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 228.77 J/kg Max Up Vert Vel: 21.39 m/s Conv Inhibition (B-): 0.03 J/kg Cap Strength: 0.08 C Lift Cond Lev (LCL): 770.69 mb = 2370.03 m = 7775.61 ft Lev Free Conv (LFC): 755.69 mb = 2533.51 m = 8311.95 ft Equ Level (EL): 395.69 mb = 7680.29 m = 25197.51 ft B at Equ Level: 227.67 J/kg Max Parcel Lev (MPL): 195.69 mb = 12605.06 m = 41354.70 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 ---------------------------------------------------------- 0 825 1798 0 0 -0.0 -0.0 | 95 5 -5.2 0.5 1 70 18690 245 14 12.7 5.9 | 229 10 7.5 6.4 2 50 20680 310 19 14.6 -12.2 | 322 15 9.3 -11.8 3 30 23820 60 8 -6.9 -4.0 | 74 13 -12.2 -3.5 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.20250505.23.gif