UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042723.upa.cvt Date: 2300Z 27 APR 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 27 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 16.0 14.2 89 1.8 14.8 0 0 305.8 308.1 295.1 343.3 12.48 1 793 2102 15.4 13.9 91 1.5 14.4 308.3 310.7 295.9 346.8 12.70 2 771 2340 14.6 12.7 88 1.9 13.3 310.0 312.2 295.9 346.7 12.06 3 672 3484 6.6 5.3 91 1.3 5.8 313.4 315.0 294.1 339.4 8.35 4 663 3595 7.8 -0.2 57 8.0 3.5 316.0 317.1 292.8 334.1 5.69 5 656 3682 8.0 -5.0 39 13.0 1.5 317.2 318.0 291.7 330.2 4.02 6 645 3822 7.4 -0.6 57 8.0 3.1 318.0 319.1 293.4 336.2 5.69 7 616 4198 4.4 1.8 83 2.6 2.9 318.8 320.2 294.7 341.4 7.10 8 592 4520 2.2 -1.1 79 3.3 0.4 319.9 321.1 294.1 339.1 5.97 9 573 4783 1.4 -14.6 29 16.0 -5.0 322.0 322.4 291.5 329.2 2.15 10 558 4997 0.4 -17.6 24 18.0 -6.2 323.2 323.6 291.5 329.1 1.72 11 521 5544 -2.3 -16.3 33 14.0 -7.7 326.4 326.8 292.6 333.4 2.05 12 509 5729 -4.1 -6.9 81 2.8 -5.4 326.4 327.3 294.6 341.3 4.48 13 494 5964 -6.1 -8.5 83 2.4 -7.2 326.7 327.5 294.4 340.4 4.08 14 488 6059 -6.7 -10.5 74 3.8 -8.4 327.1 327.8 294.1 339.0 3.52 15 472 6320 -6.1 -30.1 13 24.0 -12.5 331.0 331.1 292.6 333.5 0.66 16 461 6504 -6.9 -28.9 15 22.0 -12.9 332.3 332.4 293.1 335.1 0.76 17 377 8038 -19.3 -25.3 59 6.0 -20.9 335.5 335.8 294.4 340.3 1.30 18 364 8299 -20.5 -34.5 27 14.0 -23.2 337.3 337.4 294.2 339.5 0.56 19 340 8800 -24.3 -32.3 48 8.0 -25.9 338.8 338.9 294.7 341.6 0.75 20 287 10018 -31.5 -54.5 8 23.0 -33.4 345.3 345.3 295.7 345.7 0.08 21 275 10319 -33.5 -37.1 70 3.6 -34.0 346.7 346.8 296.4 348.9 0.58 22 264 10605 -34.9 -43.9 39 9.0 -35.9 348.7 348.8 296.6 349.9 0.29 23 257 10792 -36.7 -49.7 25 13.0 -37.8 348.7 348.8 296.5 349.4 0.16 24 250 10983 -38.3 -56.3 13 18.0 -39.4 349.1 349.1 296.5 349.4 0.07 25 209 12188 -48.9 -63.9 16 15.0 -49.3 350.9 350.9 296.8 351.0 0.03 26 191 12773 -54.5 -57.8 67 3.3 -54.6 351.1 351.1 297.0 351.4 0.08 27 174 13363 -59.7 -64.0 57 4.3 -59.8 352.0 352.0 297.1 352.1 0.04 28 138 14779 -69.7 -76.7 35 7.0 -69.8 358.5 358.5 298.4 358.5 0.01 29 119 15646 -77.1 -83.1 38 6.0 -77.1 360.4 360.4 298.8 360.4 0.00 30 98 16748 -81.7 -87.7 35 6.0 -81.7 372.0 372.0 300.9 372.0 0.00 31 92 17103 -80.5 -86.5 36 6.0 -80.5 381.2 381.2 302.5 381.2 0.00 32 86 17481 -83.1 -89.1 34 6.0 -83.1 15 11 383.4 383.4 302.8 383.4 0.00 33 82 17752 -75.9 -80.2 51 4.3 -75.9 403.3 403.3 305.6 403.4 0.01 34 70 18660 -78.5 -85.5 31 7.0 -78.5 280 25 416.4 416.4 307.3 416.5 0.00 35 62 19358 -75.5 -82.5 33 7.0 -75.6 437.8 437.8 309.7 437.8 0.01 36 56 19964 -64.1 -72.1 33 8.0 -64.3 476.7 476.7 313.2 477.0 0.04 37 50 20660 -63.1 -81.1 7 18.0 -63.5 275 35 494.8 494.8 314.6 494.9 0.01 38 47 21041 -61.9 -83.9 4 22.0 -62.4 506.5 506.5 315.4 506.5 0.01 39 45 21310 -62.3 -87.3 2 25.0 -62.8 511.9 511.9 315.8 511.9 0.00 40 35 22847 -66.3 -94.3 1 28.0 -66.7 539.6 539.6 317.5 539.6 0.00 41 30 23790 -61.9 -90.9 1 29.0 -62.6 215 15 575.9 575.9 319.5 575.9 0.00 TRP 86 17481 -83.1 -89.1 34 6.0 -83.1 15 11 383.4 383.4 302.8 383.4 0.00 WND 20 80 59 Sounding variables and indices Freezing level: 552.52 mb = 5077.74 m = 16659.05 ft Wetbulb zero: 590.48 mb = 4541.07 m = 14898.33 ft Precipitable water: 1.04 inches Sfc-500 mean rel hum: 68.59 % Est. max temperature: 23.19 C = 73.75 F Sfc-Lift cond lev (LCL): 800.43 mb = 2023.31 m = 6638.09 ft T: 15.56 C 700-500 lapse rate: 5.24 C/km ThetaE index: 16.65 C Layer 771.0- 645.0 mb Conv cond level (CCL): 732.04 mb = 2771.80 m = 9093.72 ft Mean mixing ratio: 11.79 g/kg Conv temperature: 21.18 C = 70.12 F Cap Strength: 1.35 C Lifted Index: -0.63 C Risk: Thunderstorms probable Lifted Index @300 mb: 1.36 C Lifted Index @700 mb: -0.30 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 73.73 J/kg Max Up Vert Vel: 12.14 m/s Conv Inhibition (B-): 14.58 J/kg Cap Strength: 1.29 C Lift Cond Lev (LCL): 751.49 mb = 2553.57 m = 8377.74 ft Lev Free Conv (LFC): 706.49 mb = 3067.52 m = 10063.91 ft Equ Level (EL): 656.49 mb = 3676.32 m = 12061.26 ft B at Equ Level: 29.38 J/kg Max Parcel Lev (MPL): 456.49 mb = 6579.49 m = 21586.00 ft Wind level data ------------------------------------ TRUE/GROUND REL LEV P H DIR SPD U V mb m knt m/s ------------------------------------ 0 20 31529 80 59 -58.1 -10.2 1 822 1798 0 0 -0.0 -0.0 2 86 17481 15 11 -2.8 -10.6 3 70 18660 280 25 24.6 -4.3 4 50 20660 275 35 34.9 -3.1 5 30 23790 215 15 8.6 12.3 6 20 26370 80 59 -58.1 -10.2 Wind Parameters Energy-Hel index: -4.61 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.20250427.23.gif