UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041600.upa.cvt Date: 0000Z 16 APR 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:0000Z 16 APR 25 Station: VTUN WMO ident: 48431 Latitude: 14.97 Longitude: 102.83 Elevation: 181.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 0 0.0 -25.0 13 25.0 -5.4 273.1 273.2 267.8 274.6 0.50 SFC 987 181 26.8 25.8 94 1.0 26.1 0 0 301.1 305.0 299.7 365.0 21.65 2 952 504 24.0 21.7 87 2.3 22.3 296 5 301.4 304.6 297.2 352.7 17.42 3 939 627 25.2 20.2 74 5.0 21.6 276 7 303.8 306.7 297.0 351.5 16.07 4 925 761 24.8 19.8 74 5.0 21.2 285 5 304.7 307.6 297.1 352.1 15.91 5 850 1500 20.4 16.0 76 4.4 17.4 110 5 307.5 310.1 296.3 348.5 13.58 6 782 2212 16.0 11.7 76 4.3 13.2 310.2 312.3 295.3 344.2 11.12 TRP WND Sounding variables and indices Wetbulb zero: Below ground Precipitable water: 1.26 inches Sfc-500 mean rel hum: 77.86 % Est. max temperature: 33.72 C = 92.69 F Sfc-Lift cond lev (LCL): 973.29 mb = 306.24 m = 1004.70 ft T: 25.71 C ThetaE index: 13.48 C Layer 952.0- 925.0 mb Conv cond level (CCL): 829.81 mb = 1705.12 m = 5594.17 ft Mean mixing ratio: 17.02 g/kg Conv temperature: 34.00 C = 93.20 F Cap Strength: 2.47 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 26.96 J/kg Max Up Vert Vel: 7.34 m/s Conv Inhibition (B-): 74.37 J/kg Cap Strength: 2.47 C Lift Cond Lev (LCL): 889.22 mb = 1105.82 m = 3627.96 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 188 at 4 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 ---------------------------------------------------------- 0 987 181 0 0 -0.0 -0.0 | 8 4 -0.5 -3.5 1 941 610 275 7 7.0 -0.6 | 303 8 6.5 -4.1 2 925 761 285 5 4.8 -1.3 | 318 6 4.3 -4.8 3 909 914 295 4 3.6 -1.7 | 329 6 3.1 -5.2 4 850 1500 110 5 -4.7 1.7 | 71 6 -5.2 -1.8 5 848 1524 110 5 -4.7 1.7 | 71 6 -5.2 -1.8 6 789 2134 125 6 -4.9 3.4 | 89 5 -5.4 -0.1 Wind Parameters Mean winds (0-6000m): 158.4 at 4.7 knts Storm direction: 188.4 at 3.5 knts Shear (0-3000m) pos: 3.9 neg: 2.1 tot: 5.9 10-3/s Storm rel Dir Shear (0-3000m): 80.9 deg Storm rel helicity (0-3000m) pos: 30.4 neg: -10.9 tot: 19.5 m^2/s^2 ave: 10.2 10^-3 m/s^2 rel: 0.39 Storm rel vorticity (0-3000m) horiz: 7.1 stream: 2.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 3.72 Bulk Shear: 7.24 m/s 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 ------------------------------------------------------------------------------- 500 276 4 319 5| 0.0 6.2 6.2| 0.3 -10.9 -10.6 -21.3 -0.74| 8.9 -6.6 1000 291 4 326 6| 4.0 3.1 7.1| 14.5 -10.9 3.6 3.6 0.07| 8.7 0.6 1500 275 4 315 6| 3.9 2.1 5.9| 28.7 -10.9 17.8 11.9 0.36| 8.6 3.1 2000 NO DATA | 3.9 2.1 5.9| | 2500 NO DATA | 3.9 2.1 5.9| | 3000 NO DATA | 3.9 2.1 5.9| | 4000 NO DATA | 3.9 2.1 5.9| | 5000 NO DATA | 3.9 2.1 5.9| | 6000 NO DATA | 3.9 2.1 5.9| | Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20250416.00.gif