UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042400.upa.cvt Date: 0000Z 24 APR 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:0000Z 24 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 988 181 26.6 21.6 74 5.0 23.0 0 0 300.8 303.8 296.5 349.7 16.66 2 925 765 26.2 15.2 51 11.0 18.7 255 6 306.1 308.3 294.7 341.6 11.82 3 909 919 25.8 14.8 51 11.0 18.4 260 6 307.2 309.4 295.0 342.6 11.72 4 850 1506 21.6 13.6 60 8.0 16.3 320 2 308.8 311.0 295.3 344.0 11.60 5 754 2533 13.8 10.7 82 3.1 11.8 109 2 311.1 313.1 295.3 344.2 10.78 6 700 3158 10.8 2.8 58 8.0 6.2 120 1 314.4 315.7 293.2 335.5 6.70 7 686 3326 10.2 1.2 54 9.0 5.2 115 2 315.6 316.8 293.0 334.9 6.09 8 649 3783 7.0 2.9 75 4.1 4.6 99 3 317.0 318.4 294.3 340.1 7.29 9 633 3988 6.0 -2.0 56 8.0 1.8 90 4 318.2 319.2 293.0 334.9 5.22 10 626 4079 5.4 1.4 75 4.0 3.1 85 4 318.5 319.8 294.3 340.1 6.78 11 607 4330 4.4 -7.6 41 12.0 -1.2 73 4 320.1 320.8 292.2 331.8 3.56 12 573 4796 1.4 -4.6 64 6.0 -1.6 40 6 322.0 322.9 293.7 337.5 4.75 13 567 4880 1.4 -11.6 37 13.0 -4.2 32 6 322.9 323.5 292.3 332.2 2.78 TRP WND Sounding variables and indices Wetbulb zero: Below ground Precipitable water: 1.64 inches Sfc-500 mean rel hum: 62.74 % Est. max temperature: 34.84 C = 94.72 F Sfc-Lift cond lev (LCL): 918.86 mb = 823.69 m = 2702.37 ft T: 26.05 C ThetaE index: 9.28 C Layer 700.0- 649.0 mb Conv cond level (CCL): 754.19 mb = 2531.05 m = 8303.88 ft Mean mixing ratio: 13.28 g/kg Conv temperature: 36.86 C = 98.34 F Cap Strength: 4.31 C Lifted Index @700 mb: 1.76 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 27.12 J/kg Max Up Vert Vel: 7.37 m/s Conv Inhibition (B-): 286.23 J/kg Cap Strength: 4.31 C Lift Cond Lev (LCL): 823.06 mb = 1782.02 m = 5846.44 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 89 at 2 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 ---------------------------------------------------------- 0 988 181 0 0 -0.0 -0.0 | 269 2 2.4 0.0 1 941 610 250 8 7.5 2.7 | 254 10 9.9 2.8 2 925 765 255 6 5.8 1.6 | 259 8 8.2 1.6 3 909 914 260 6 5.9 1.0 | 263 8 8.3 1.1 4 850 1506 320 2 1.3 -1.5 | 292 4 3.7 -1.5 5 848 1524 320 2 1.3 -1.5 | 292 4 3.7 -1.5 6 790 2134 85 2 -2.0 -0.2 | 287 0 0.4 -0.1 7 709 3048 140 1 -0.6 0.8 | 245 2 1.8 0.8 8 700 3158 120 1 -0.9 0.5 | 251 2 1.5 0.5 9 658 3658 105 3 -2.9 0.8 | 149 1 -0.5 0.8 10 588 4572 60 5 -4.3 -2.5 | 38 3 -1.9 -2.5 11 566 4877 30 6 -3.0 -5.2 | 6 5 -0.6 -5.2 Wind Parameters Mean winds (0-6000m): 58.9 at 3.2 knts Storm direction: 88.9 at 2.4 knts Shear (0-3000m) pos: 1.3 neg: 1.2 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): -20.6 deg Storm rel helicity (0-3000m) pos: 11.1 neg: -11.8 tot: -0.7 m^2/s^2 ave: -0.2 10^-3 m/s^2 rel: 0.05 Storm rel vorticity (0-3000m) horiz: 4.3 stream: 0.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 3.47 Bulk Shear: 7.82 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 ------------------------------------------------------------------------------- 500 250 5 257 7| 0.0 7.3 7.3| 1.1 -11.6 -10.5 -21.0 -0.37| 11.4 -4.2 1000 257 5 261 7| 2.2 3.6 5.9| 7.8 -11.6 -3.8 -3.8 -0.05| 8.1 -0.4 1500 264 4 265 7| 2.6 2.4 5.1| 10.4 -11.6 -1.2 -0.8 0.06| 6.7 0.4 2000 266 4 267 6| 2.3 1.8 4.1| 10.9 -11.7 -0.8 -0.4 0.06| 5.9 0.4 2500 263 3 266 6| 1.7 1.5 3.1| 10.9 -11.8 -0.8 -0.3 0.04| 4.9 0.2 3000 259 3 264 5| 1.3 1.2 2.6| 11.1 -11.8 -0.7 -0.2 0.05| 4.3 0.2 4000 226 3 246 5| 1.0 0.5 1.5| 11.1 -12.8 -1.7 -0.4 -0.07| 3.7 -0.3 5000 NO DATA | 0.9 0.5 1.4| | 6000 NO DATA | 0.9 0.5 1.4| | Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20250424.00.gif