UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101523.upa.cvt Date: 2300Z 15 OCT 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 15 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 822 1798 16.2 11.4 73 4.8 13.1 90 4 306.0 308.0 293.6 337.2 10.36 1 793 2101 13.2 12.3 94 0.9 12.6 306.0 308.1 294.4 340.3 11.41 2 705 3081 9.8 6.8 82 3.0 8.0 312.7 314.4 294.3 340.0 8.83 3 668 3524 5.8 4.8 93 1.0 5.2 313.1 314.6 293.9 338.3 8.10 4 662 3598 7.4 2.4 71 5.0 4.5 315.7 317.0 293.7 337.4 6.89 5 656 3673 7.4 0.4 61 7.0 3.5 316.5 317.7 293.2 335.6 6.01 6 647 3786 6.8 -0.2 61 7.0 3.0 317.1 318.2 293.2 335.7 5.84 7 616 4186 4.0 -5.0 52 9.0 -0.4 318.3 319.2 292.3 332.2 4.28 8 500 5845 -7.3 -20.3 35 13.0 -11.5 324.1 324.4 291.5 329.4 1.52 9 484 6098 -7.1 -28.1 17 21.0 -12.8 327.4 327.6 291.8 330.2 0.78 10 405 7467 -14.5 -45.5 5 31.0 -19.4 335.0 335.0 293.2 335.6 0.16 11 324 9112 -28.1 -43.1 22 15.0 -30.0 338.3 338.3 294.1 339.3 0.26 12 285 10022 -33.5 -57.5 7 24.0 -35.1 343.2 343.2 295.1 343.4 0.06 13 255 10792 -40.1 -61.1 9 21.0 -41.1 344.5 344.5 295.4 344.7 0.04 14 227 11575 -46.7 -62.7 15 16.0 -47.2 346.1 346.1 295.8 346.2 0.04 15 200 12401 -53.9 -58.9 54 5.0 -54.1 347.4 347.4 296.1 347.7 0.07 16 188 12796 -56.3 -64.3 36 8.0 -56.5 349.7 349.8 296.6 349.9 0.04 17 155 13991 -67.1 -69.5 71 2.4 -67.1 351.2 351.2 296.9 351.3 0.02 18 112 15887 -80.7 -85.3 46 4.6 -80.7 359.9 360.0 298.7 360.0 0.00 19 90 17133 -76.7 -79.2 67 2.5 -76.7 391.1 391.1 304.0 391.2 0.01 20 80 17825 -68.1 -72.8 51 4.7 -68.2 422.3 422.3 308.0 422.4 0.03 21 70 18620 -71.7 -82.7 18 11.0 -71.8 240 20 431.0 431.0 308.9 431.0 0.01 22 67 18878 -73.3 -85.3 14 12.0 -73.3 250 15 433.0 433.0 309.1 433.0 0.00 23 53 20251 -74.3 -96.3 2 22.0 -74.4 460.7 460.7 311.8 460.7 0.00 24 50 20590 -75.7 -100.7 1 25.0 -75.7 325 8 465.1 465.1 312.2 465.1 0.00 25 45 21208 -69.5 -96.5 1 27.0 -69.7 494.4 494.4 314.5 494.4 0.00 26 30 23680 -60.1 -89.1 1 29.0 -61.0 90 55 580.8 580.8 319.7 580.8 0.00 27 26 24577 -58.5 -88.5 1 30.0 -59.7 609.6 609.6 321.0 609.6 0.01 28 24 25087 -52.9 -84.9 1 32.0 -55.2 640.0 640.0 322.3 640.1 0.01 29 20 26270 -50.3 -82.3 1 32.0 -53.7 80 57 682.2 682.2 323.9 682.4 0.02 TRP 67 18878 -73.3 -85.3 14 12.0 -73.3 250 15 433.0 433.0 309.1 433.0 0.00 WND 12 95 79 Sounding variables and indices Freezing level: 574.94 mb = 4773.36 m = 15660.43 ft Wetbulb zero: 620.03 mb = 4133.23 m = 13560.30 ft Precipitable water: 0.89 inches Sfc-500 mean rel hum: 64.42 % Est. max temperature: 22.82 C = 73.07 F Sfc-Lift cond lev (LCL): 765.13 mb = 2398.72 m = 7869.71 ft T: 12.17 C 700-500 lapse rate: 6.13 C/km ThetaE index: 4.66 C Layer 705.0- 647.0 mb Conv cond level (CCL): 699.22 mb = 3148.37 m = 10329.17 ft Mean mixing ratio: 10.51 g/kg Conv temperature: 22.56 C = 72.61 F Cap Strength: 2.46 C Lifted Index: -0.41 C Risk: Thunderstorms probable Lifted Index @300 mb: 2.89 C Lifted Index @700 mb: 1.69 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 25.65 J/kg Max Up Vert Vel: 7.16 m/s Conv Inhibition (B-): 122.20 J/kg Cap Strength: 2.43 C Lift Cond Lev (LCL): 747.62 mb = 2591.58 m = 8502.46 ft Lev Free Conv (LFC): 522.62 mb = 5492.95 m = 18021.28 ft Equ Level (EL): 492.62 mb = 5960.41 m = 19554.92 ft B at Equ Level: 23.38 J/kg Max Parcel Lev (MPL): 462.62 mb = 6444.88 m = 21144.36 ft Wind level data ------------------------------------ TRUE/GROUND REL LEV P H DIR SPD U V mb m knt m/s ------------------------------------ 0 12 35616 95 79 -78.7 6.9 1 822 1798 90 4 -4.0 0.0 2 70 18620 240 20 17.3 10.0 3 67 18878 250 15 14.1 5.1 4 50 20590 325 8 4.6 -6.6 5 30 23680 90 55 -55.0 0.0 6 20 26270 80 57 -56.1 -9.9 Wind Parameters Energy-Hel index: -1.60 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.20251015.23.gif