UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025062223.upa.cvt Date: 2300Z 22 JUN 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 22 JUN 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 15.0 13.2 89 1.8 13.8 170 6 304.6 306.7 294.1 339.3 11.65 1 808 1963 12.8 12.3 97 0.5 12.5 171 6 303.9 306.0 293.6 337.3 11.20 2 795 2098 12.2 12.0 99 0.2 12.1 172 6 304.7 306.8 293.9 338.0 11.16 3 714 2989 7.8 7.7 99 0.1 7.8 180 7 309.4 311.1 293.7 337.7 9.28 4 663 3598 7.6 -8.4 31 16.0 0.3 185 8 315.8 316.4 290.5 325.7 3.06 5 657 3673 8.4 -8.6 29 17.0 0.6 185 8 317.5 318.1 291.0 327.4 3.04 6 640 3888 7.2 -8.8 31 16.0 -0.1 187 8 318.5 319.1 291.3 328.6 3.07 7 617 4187 4.4 -7.6 41 12.0 -1.2 190 9 318.7 319.3 291.7 330.1 3.50 8 578 4713 -0.3 -8.3 55 8.0 -3.9 194 9 319.2 319.9 291.9 330.7 3.54 9 558 4993 -2.9 -3.8 93 0.9 -3.4 197 9 319.3 320.3 293.3 336.0 5.18 10 541 5239 -0.7 -21.7 19 21.0 -7.7 199 10 324.8 325.0 291.5 329.1 1.25 11 523 5508 -1.5 -24.5 15 23.0 -8.7 201 10 327.0 327.2 291.9 330.6 1.00 12 500 5864 -3.5 -23.5 20 20.0 -9.9 204 10 328.8 329.0 292.5 332.9 1.15 13 344 8706 -23.7 -42.7 16 19.0 -26.4 229 14 338.5 338.5 294.2 339.5 0.26 14 267 10496 -39.9 -46.9 47 7.0 -40.4 247 16 340.3 340.3 294.6 341.1 0.21 15 256 10782 -42.1 -51.1 37 9.0 -42.6 250 16 341.2 341.2 294.7 341.7 0.14 16 216 11909 -51.1 -58.1 43 7.0 -51.3 261 18 344.2 344.2 295.4 344.5 0.07 17 189 12773 -53.3 -69.3 13 16.0 -53.6 270 19 354.0 354.0 297.5 354.1 0.02 18 138 14725 -69.1 -79.1 22 10.0 -69.2 292 22 359.5 359.5 298.6 359.6 0.01 19 121 15505 -72.3 -82.3 21 10.0 -72.3 301 23 367.4 367.4 300.1 367.5 0.00 20 116 15754 -69.9 -79.9 22 10.0 -69.9 304 23 376.4 376.4 301.6 376.4 0.01 21 98 16741 -76.7 -87.7 16 11.0 -76.7 315 25 381.7 381.7 302.5 381.7 0.00 22 70 18680 -76.1 -85.1 23 9.0 -76.2 235 11 421.6 421.6 307.9 421.6 0.00 23 66 19021 -74.1 -83.1 24 9.0 -74.2 217 10 433.1 433.1 309.1 433.1 0.01 24 55 20101 -66.9 -82.9 9 16.0 -67.1 160 9 472.8 472.8 312.9 472.8 0.01 25 50 20680 -64.3 -89.3 2 25.0 -64.6 130 8 492.0 492.0 314.4 492.0 0.00 26 46 21194 -63.1 -92.1 1 29.0 -63.5 122 14 506.7 506.7 315.4 506.7 0.00 27 39 22212 -63.5 -91.5 1 28.0 -64.0 106 26 530.2 530.2 316.9 530.2 0.00 28 30 23860 -55.1 -86.1 1 31.0 -56.7 80 45 594.4 594.4 320.3 594.5 0.01 29 25 25031 -52.1 -84.1 1 32.0 -54.5 80 42 634.9 634.9 322.1 635.0 0.01 30 20 26480 -50.5 -82.5 1 32.0 -53.8 80 39 681.6 681.6 323.9 681.8 0.02 TRP 98 16741 -76.7 -87.7 16 11.0 -76.7 315 25 381.7 381.7 302.5 381.7 0.00 WND Sounding variables and indices Freezing level: 580.49 mb = 4679.38 m = 15352.12 ft Wetbulb zero: 642.94 mb = 3850.50 m = 12632.73 ft Precipitable water: 0.82 inches Sfc-500 mean rel hum: 60.26 % Est. max temperature: 24.25 C = 75.66 F Sfc-Lift cond lev (LCL): 802.19 mb = 2022.99 m = 6637.02 ft T: 12.53 C 700-500 lapse rate: 4.15 C/km ThetaE index: 12.33 C Layer 714.0- 657.0 mb Conv cond level (CCL): 766.37 mb = 2402.25 m = 7881.30 ft Mean mixing ratio: 10.60 g/kg Conv temperature: 16.65 C = 61.96 F Cap Strength: 4.05 C Lifted Index: 4.16 C Risk: None Lifted Index @300 mb: 2.86 C Lifted Index @700 mb: 0.75 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 22.77 J/kg Max Up Vert Vel: 6.75 m/s Conv Inhibition (B-): 24126.48 J/kg Cap Strength: 4.08 C Lift Cond Lev (LCL): 769.06 mb = 2373.19 m = 7785.97 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 335 at 12 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 170 6 -1.0 5.9 | 160 17 -5.9 16.5 1 98 16741 315 25 17.7 -17.7 | 299 15 12.8 -7.1 2 70 18680 235 11 9.0 6.3 | 194 17 4.1 16.9 3 50 20680 130 8 -6.1 5.1 | 145 19 -11.0 15.7 4 30 23860 80 45 -44.3 -7.8 | 93 49 -49.2 2.7 5 20 26480 80 39 -38.4 -6.8 | 95 43 -43.3 3.8 Wind Parameters Mean winds (0-6000m): 305.3 at 15.5 knts Storm direction: 335.3 at 11.6 knts Storm rel Dir Shear (0-3000m): -115.3 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.20250622.23.gif