UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041823.upa.cvt Date: 2300Z 18 APR 25 Searching for HKNC... Searching the city database file for: HKNC ... Date:2300Z 18 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 823 1798 17.0 14.6 86 2.4 15.4 306.8 309.2 295.6 345.3 12.80 1 794 15.2 14.9 98 0.3 15.0 308.0 310.6 296.4 349.0 13.55 2 663 6.2 6.1 99 0.1 6.1 314.2 315.9 294.8 342.1 8.95 3 616 2.6 2.3 98 0.3 2.4 316.7 318.2 294.3 340.0 7.36 4 540 -1.9 -4.8 81 2.9 -3.3 323.5 324.5 294.3 339.8 4.96 5 534 -2.3 -5.2 80 2.9 -3.7 324.1 325.0 294.3 340.1 4.87 6 493 -4.7 -18.7 33 14.0 -9.7 328.6 329.0 293.0 334.8 1.77 7 478 -6.1 -23.1 25 17.0 -11.5 329.8 330.1 292.9 334.3 1.25 8 462 -7.9 -14.9 57 7.0 -10.6 330.8 331.3 294.3 339.8 2.60 9 438 -10.1 -23.1 34 13.0 -14.1 333.1 333.4 293.8 338.0 1.36 10 392 -14.9 -22.9 50 8.0 -17.3 337.6 337.9 295.1 343.2 1.55 11 363 -18.5 -38.5 15 20.0 -22.2 340.3 340.3 294.7 341.7 0.38 12 316 -27.5 -36.5 42 9.0 -29.0 341.5 341.6 295.2 343.6 0.53 13 268 -36.1 -51.1 20 15.0 -37.3 345.5 345.5 295.7 346.0 0.13 14 257 -38.7 -40.1 87 1.4 -38.9 345.8 345.9 296.1 347.6 0.45 15 250 -40.1 -41.3 88 1.2 -40.2 346.4 346.5 296.2 348.1 0.41 16 195 -52.9 -58.9 48 6.0 -53.1 351.5 351.5 297.0 351.8 0.07 17 111 -81.1 -87.1 36 6.0 -81.1 360.1 360.1 298.7 360.1 0.00 18 96 -76.3 -79.3 62 3.0 -76.3 384.8 384.8 303.0 384.8 0.01 TRP WND Sounding variables and indices Freezing level: 572.09 mb = -9999.00 m = -9999.00 ft Wetbulb zero: 583.94 mb = -9999.00 m = -9999.00 ft Precipitable water: 1.24 inches Sfc-500 mean rel hum: 90.10 % Est. max temperature: 23.54 C = 74.37 F Sfc-Lift cond lev (LCL): 794.22 mb = -9999.00 m = -9999.00 ft T: 15.21 C Conv cond level (CCL): 760.48 mb = -9999.00 m = -9999.00 ft Mean mixing ratio: 12.51 g/kg Conv temperature: 19.59 C = 67.26 F Cap Strength: 0.23 C Lifted Index: -0.25 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.17 C Lifted Index @700 mb: -0.84 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.00 J/kg Max Up Vert Vel: 0.00 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 0.23 C Lift Cond Lev (LCL): 765.91 mb = -9999.00 m = -9999.00 ft Lev Free Conv (LFC): 760.91 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 30 at 0 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 ---------------------------------------------------------- 0 823 1798 0 0 -0.0 -0.0 | 0 0 0.0 0.0 Wind Parameters Mean winds (0-6000m): 0.0 at 0.0 knts Storm direction: 30.0 at 0.0 knts 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.20250418.23.gif