UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025052500.upa.cvt Date: 0000Z 25 MAY 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:0000Z 25 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 16.2 14.0 87 2.2 14.7 180 3 305.8 308.1 295.0 342.7 12.29 1 795 2100 13.2 12.3 94 0.9 12.6 178 3 305.8 307.9 294.3 339.9 11.38 2 692 3254 8.0 7.5 97 0.5 7.7 168 4 312.4 314.2 294.7 341.6 9.45 3 664 3596 9.4 0.4 53 9.0 4.4 166 5 317.7 318.8 293.4 336.6 5.94 4 633 3989 6.6 -4.4 45 11.0 1.1 162 5 318.8 319.7 292.5 333.0 4.36 5 618 4186 5.0 -5.0 48 10.0 0.0 161 5 319.2 320.0 292.5 333.0 4.27 6 588 4589 1.4 -4.6 64 6.0 -1.6 157 6 319.6 320.5 292.9 334.6 4.63 7 569 4852 -0.9 -1.3 97 0.4 -1.1 155 6 319.9 321.1 294.2 339.6 6.13 8 500 5873 -6.5 -6.6 99 0.1 -6.5 146 7 325.1 326.0 294.4 340.6 4.67 9 474 6290 -6.1 -20.1 32 14.0 -10.9 143 7 330.6 330.9 293.4 336.4 1.63 10 428 7079 -13.1 -15.6 81 2.5 -14.0 136 8 331.5 332.0 294.5 340.7 2.65 11 415 7313 -14.3 -17.3 78 3.0 -15.3 134 8 332.9 333.4 294.6 341.2 2.37 12 382 7938 -17.5 -28.5 38 11.0 -20.2 128 9 336.6 336.8 294.4 340.2 0.95 13 367 8237 -19.5 -22.0 80 2.5 -20.3 126 9 337.9 338.2 295.3 344.3 1.79 14 349 8609 -21.1 -27.1 58 6.0 -22.6 122 10 340.6 340.8 295.5 345.0 1.19 15 317 9311 -27.3 -31.3 69 4.0 -28.1 116 11 341.5 341.7 295.5 344.8 0.88 16 300 9706 -29.7 -42.7 27 13.0 -31.3 112 11 343.5 343.6 295.4 344.7 0.30 17 257 10789 -38.7 -43.7 59 5.0 -39.2 102 12 345.8 345.9 296.0 347.0 0.31 18 241 11227 -42.5 -53.5 29 11.0 -43.1 97 13 346.5 346.5 296.0 347.0 0.11 19 218 11896 -48.5 -52.6 62 4.1 -48.7 91 13 347.3 347.3 296.1 347.9 0.13 20 193 12689 -53.5 -61.5 37 8.0 -53.7 83 14 351.6 351.6 297.0 351.8 0.05 21 181 13099 -56.7 -59.4 71 2.7 -56.8 78 15 352.9 352.9 297.3 353.2 0.07 22 167 13604 -61.1 -63.1 77 2.0 -61.2 73 16 353.8 353.8 297.5 354.0 0.05 23 140 14676 -70.1 -73.1 65 3.0 -70.1 61 17 356.3 356.3 298.0 356.4 0.01 24 136 14849 -68.5 -71.6 64 3.1 -68.5 59 17 362.1 362.1 299.1 362.2 0.02 25 124 15399 -71.5 -78.5 34 7.0 -71.5 53 18 366.3 366.3 299.9 366.4 0.01 26 109 16157 -73.5 -80.5 33 7.0 -73.5 44 19 376.3 376.3 301.6 376.4 0.01 27 95 16950 -79.1 -86.1 31 7.0 -79.1 35 20 380.4 380.4 302.3 380.4 0.00 28 78 18089 -72.7 -77.7 47 5.0 -72.8 288 12 415.8 415.8 307.2 415.8 0.01 29 70 18720 -75.5 -83.5 27 8.0 -75.5 230 8 422.9 422.9 308.0 422.9 0.01 30 58 19815 -75.7 -86.7 16 11.0 -75.7 289 15 445.8 445.8 310.4 445.8 0.00 31 51 20580 -66.7 -81.7 10 15.0 -66.9 329 20 483.6 483.6 313.7 483.6 0.01 32 50 20700 -67.3 -84.3 7 17.0 -67.5 335 21 484.9 484.9 313.8 484.9 0.01 33 38 22361 -65.7 -93.7 1 28.0 -66.1 528.6 528.6 316.8 528.6 0.00 TRP 95 16950 -79.1 -86.1 31 7.0 -79.1 35 20 380.4 380.4 302.3 380.4 0.00 WND Sounding variables and indices Freezing level: 576.43 mb = 4748.75 m = 15579.71 ft Wetbulb zero: 617.09 mb = 4197.52 m = 13771.21 ft Precipitable water: 1.13 inches Sfc-500 mean rel hum: 82.49 % Est. max temperature: 25.58 C = 78.04 F Sfc-Lift cond lev (LCL): 797.50 mb = 2073.86 m = 6803.93 ft T: 13.46 C 700-500 lapse rate: 5.50 C/km ThetaE index: 2.75 C Layer 795.0- 692.0 mb Conv cond level (CCL): 747.93 mb = 2607.95 m = 8556.15 ft Mean mixing ratio: 11.03 g/kg Conv temperature: 18.89 C = 66.00 F Cap Strength: 3.64 C Lifted Index: -0.02 C Risk: Thunderstorms probable Lifted Index @300 mb: 3.97 C Lifted Index @700 mb: 0.56 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 27.06 J/kg Max Up Vert Vel: 7.36 m/s Conv Inhibition (B-): 121.40 J/kg Cap Strength: 3.56 C Lift Cond Lev (LCL): 761.50 mb = 2458.32 m = 8065.25 ft Lev Free Conv (LFC): 566.50 mb = 4886.46 m = 16031.49 ft Equ Level (EL): 496.50 mb = 5927.40 m = 19446.61 ft B at Equ Level: 24.37 J/kg Max Parcel Lev (MPL): 466.50 mb = 6413.23 m = 21040.51 ft Wind level data Storm motion: 71 at 9 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 180 3 0.0 3.0 | 234 10 8.1 5.9 1 95 16950 35 20 -11.5 -16.4 | 14 14 -3.3 -13.5 2 70 18720 230 8 6.1 5.1 | 241 16 14.3 8.0 3 50 20700 335 21 8.9 -19.0 | 314 23 17.0 -16.2 Wind Parameters Mean winds (0-6000m): 40.6 at 11.5 knts Storm direction: 70.6 at 8.6 knts Storm rel Dir Shear (0-3000m): 170.8 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.20250525.00.gif