UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042112.upa.cvt Date: 1200Z 21 APR 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:1200Z 21 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 51 SFC 985 181 32.4 23.4 59 9.0 25.7 220 5 306.9 310.4 299.3 363.3 18.70 2 925 752 29.2 19.2 55 10.0 22.0 205 3 309.2 312.1 297.8 355.7 15.31 3 917 830 28.6 18.6 55 10.0 21.5 203 2 309.3 312.1 297.6 354.5 14.87 4 850 1499 22.6 17.6 73 5.0 19.1 20 3 309.8 312.7 297.8 355.7 15.07 5 802 2002 18.0 15.9 88 2.1 16.5 27 5 310.1 312.8 297.4 353.8 14.32 6 713 3002 11.6 9.0 84 2.6 9.9 60 5 313.7 315.6 295.6 345.2 10.17 7 700 3156 11.4 6.4 71 5.0 8.3 66 4 315.1 316.8 294.8 342.2 8.65 8 675 3459 10.8 -2.2 40 13.0 3.9 77 4 317.7 318.7 292.6 333.2 4.82 9 654 3721 8.2 0.2 57 8.0 3.8 87 3 317.7 318.8 293.5 336.7 5.95 10 645 3835 8.2 -10.8 25 19.0 -0.2 91 3 318.9 319.4 291.0 327.5 2.60 11 595 4495 3.2 -12.8 30 16.0 -3.4 116 2 320.6 321.1 291.3 328.6 2.40 12 570 4841 1.6 -18.4 21 20.0 -5.7 47 4 322.7 323.0 291.2 328.1 1.57 13 568 4870 1.6 -8.4 47 10.0 -3.0 38 4 323.0 323.7 293.0 334.8 3.57 14 564 4927 1.2 -8.8 47 10.0 -3.4 22 5 323.2 323.9 293.0 334.8 3.49 15 552 5100 1.2 -10.8 40 12.0 -4.1 347 17 325.2 325.8 293.2 335.4 3.04 16 548 5158 1.4 -31.6 6 33.0 -7.7 335 21 326.1 326.2 291.1 327.9 0.50 17 522 5547 -1.3 -18.3 26 17.0 -7.5 269 42 327.4 327.7 292.6 333.4 1.73 18 514 5670 -1.3 -35.3 5 34.0 -9.8 278 33 328.8 328.9 291.7 330.2 0.37 19 510 5733 -1.3 -21.3 20 20.0 -8.2 283 29 329.6 329.9 292.9 334.4 1.37 20 500 5890 -2.7 -22.7 20 20.0 -9.3 295 18 329.7 330.0 292.8 334.1 1.23 21 476 6277 -6.1 -21.1 29 15.0 -11.1 291 17 330.2 330.5 293.2 335.5 1.49 22 473 6327 -6.1 -25.1 21 19.0 -11.8 287 17 330.8 331.0 293.0 334.6 1.05 23 458 6578 -7.5 -16.5 48 9.0 -10.9 266 20 332.1 332.6 294.4 340.2 2.30 24 432 7031 -10.1 -23.1 34 13.0 -14.2 229 25 334.4 334.7 294.1 339.4 1.38 25 400 7620 -13.7 -31.7 20 18.0 -18.0 180 31 337.2 337.3 294.3 339.7 0.67 26 369 8227 -18.3 -44.3 8 26.0 -22.3 159 28 338.9 339.0 294.3 339.7 0.20 27 337 8898 -22.7 -32.7 40 10.0 -24.8 124 27 341.8 342.0 295.4 344.6 0.73 28 327 9118 -24.1 -49.1 8 25.0 -27.1 112 26 342.9 342.9 295.1 343.4 0.13 29 324 9185 -24.5 -39.5 24 15.0 -26.9 109 26 343.2 343.3 295.4 344.7 0.38 30 311 9481 -27.1 -44.1 18 17.0 -29.3 96 23 343.6 343.7 295.4 344.6 0.24 31 310 9505 -27.3 -47.3 13 20.0 -29.6 95 22 343.7 343.7 295.4 344.4 0.17 32 309 9528 -27.3 -39.3 31 12.0 -29.1 94 22 344.0 344.1 295.7 345.6 0.41 33 300 9740 -28.7 -41.7 28 13.0 -30.4 85 20 344.9 345.0 295.8 346.2 0.33 34 268 10538 -34.9 -41.9 49 7.0 -35.7 89 19 347.2 347.3 296.3 348.6 0.36 35 255 10883 -37.3 -47.3 35 10.0 -38.2 90 18 348.6 348.7 296.5 349.5 0.21 36 250 11020 -38.5 -48.5 34 10.0 -39.3 90 18 348.8 348.9 296.5 349.6 0.19 37 246 11130 -39.5 -46.5 47 7.0 -40.1 89 18 348.9 349.0 296.6 349.9 0.24 38 245 11158 -39.9 -50.9 30 11.0 -40.7 89 18 348.8 348.8 296.5 349.4 0.15 39 238 11355 -41.5 -47.5 52 6.0 -42.0 87 18 349.2 349.3 296.7 350.2 0.22 40 237 11384 -41.7 -52.7 29 11.0 -42.4 87 18 349.4 349.4 296.6 349.9 0.12 41 235 11441 -42.1 -44.3 79 2.2 -42.3 86 18 349.6 349.7 296.8 350.9 0.32 42 229 11615 -43.7 -54.7 29 11.0 -44.3 85 18 349.8 349.8 296.7 350.2 0.10 43 228 11645 -43.9 -48.6 60 4.7 -44.2 85 17 349.9 349.9 296.8 350.7 0.20 44 226 11704 -44.3 -57.3 22 13.0 -44.9 84 17 350.2 350.2 296.7 350.5 0.07 45 220 11883 -45.9 -52.9 45 7.0 -46.3 83 17 350.4 350.4 296.8 350.9 0.13 46 200 12510 -50.5 -56.5 49 6.0 -50.7 60 24 352.8 352.8 297.3 353.2 0.09 47 165 13735 -61.3 -64.9 62 3.6 -61.4 95 26 354.7 354.7 297.7 354.8 0.04 48 150 14320 -66.5 -71.5 49 5.0 -66.5 95 19 355.5 355.5 297.8 355.6 0.02 49 139 14778 -70.5 -76.5 41 6.0 -70.5 93 23 356.3 356.3 298.0 356.4 0.01 50 109 16191 -80.1 -84.6 47 4.5 -80.1 90 36 363.9 363.9 299.4 363.9 0.00 51 100 16680 -80.1 -86.1 36 6.0 -80.1 115 32 373.0 373.0 301.1 373.0 0.00 52 83 17730 -81.7 -89.7 24 8.0 -81.7 105 34 390.1 390.1 303.8 390.1 0.00 53 70 18690 -80.3 -89.3 21 9.0 -80.3 95 30 412.6 412.6 306.8 412.6 0.00 54 67 18937 -80.5 -90.5 17 10.0 -80.5 101 28 417.4 417.4 307.4 417.4 0.00 55 59 19665 -74.5 -90.5 7 16.0 -74.6 117 21 446.3 446.3 310.5 446.3 0.00 56 56 19968 -75.3 -91.3 6 16.0 -75.4 138 22 451.2 451.2 311.0 451.2 0.00 57 52 20405 -68.1 -91.1 2 23.0 -68.3 182 26 477.6 477.6 313.2 477.6 0.00 58 50 20640 -69.1 -91.1 3 22.0 -69.3 205 28 480.7 480.7 313.5 480.7 0.00 59 49 20761 -69.3 -91.3 3 22.0 -69.5 207 29 483.0 483.0 313.7 483.0 0.00 60 45 21275 -64.7 -90.7 2 26.0 -65.1 214 31 506.0 506.0 315.4 506.0 0.00 61 43 21551 -66.3 -90.3 2 24.0 -66.6 198 29 508.7 508.7 315.5 508.7 0.00 62 41 21842 -62.3 -90.3 1 28.0 -62.9 177 26 525.7 525.7 316.6 525.7 0.00 63 32 23386 -58.7 -87.7 1 29.0 -59.7 96 15 573.9 573.9 319.3 574.0 0.01 64 30 23790 -59.7 -88.7 1 29.0 -60.6 90 14 581.9 581.9 319.8 581.9 0.00 65 29 24002 -60.3 -89.3 1 29.0 -61.2 92 14 585.9 585.9 319.9 585.9 0.00 66 27 24450 -57.5 -87.5 1 30.0 -58.8 98 16 605.9 605.9 320.9 605.9 0.01 TRP 109 16191 -80.1 -84.6 47 4.5 -80.1 90 36 363.9 363.9 299.4 363.9 0.00 WND Sounding variables and indices 1000-500 mb thick: 5839.00 m Freezing level: 534.52 mb = 5359.91 m = 17584.78 ft Wetbulb zero: 645.48 mb = 3829.01 m = 12562.20 ft Precipitable water: 1.92 inches Sfc-500 mean rel hum: 52.55 % Est. max temperature: 35.43 C = 95.78 F Sfc-Lift cond lev (LCL): 865.47 mb = 1339.89 m = 4395.91 ft T: 24.03 C 700-500 lapse rate: 5.16 C/km ThetaE index: 22.48 C Layer 802.0- 654.0 mb Conv cond level (CCL): 797.31 mb = 2052.28 m = 6733.11 ft Mean mixing ratio: 16.16 g/kg Conv temperature: 35.81 C = 96.46 F Cap Strength: 1.36 C Lifted Index: -2.31 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -4.29 C Lifted Index @700 mb: -1.16 C Showalter Index: -1.69 C Risk: Thunderstorms probable Total Totals Index: 45.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.30 C Cross Totals Index: 20.30 C K Index: 37.90 Risk: > 80 % chance of thunderstorms Sweat Index: 235.20 Risk: None Energy Index: -4.13 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1428.10 J/kg Max Up Vert Vel: 53.44 m/s Conv Inhibition (B-): 44.23 J/kg Cap Strength: 1.36 C Lift Cond Lev (LCL): 816.88 mb = 1843.23 m = 6047.28 ft Lev Free Conv (LFC): 771.88 mb = 2327.60 m = 7636.38 ft Equ Level (EL): 131.88 mb = 15083.90 m = 49487.24 ft B at Equ Level: 1422.70 J/kg Max Parcel Lev (MPL): 71.88 mb = 18540.91 m = 60829.01 ft Wind level data Storm motion: 322 at 6 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 ---------------------------------------------------------- 0 985 181 220 5 3.2 3.8 | 175 9 -0.7 8.8 1 940 610 210 5 2.5 4.3 | 171 9 -1.4 9.3 2 925 752 205 3 1.3 2.7 | 161 8 -2.7 7.7 3 908 914 200 1 0.3 0.9 | 149 7 -3.6 5.9 4 850 1499 20 3 -1.0 -2.8 | 113 5 -5.0 2.1 5 847 1524 20 3 -1.0 -2.8 | 113 5 -5.0 2.1 6 787 2134 30 6 -3.0 -5.2 | 88 7 -6.9 -0.2 7 586 4572 120 2 -1.7 1.0 | 137 8 -5.7 6.0 8 565 4877 25 4 -1.7 -3.6 | 103 6 -5.6 1.3 9 525 5486 265 45 44.8 3.9 | 258 42 40.9 8.9 10 500 5890 295 18 16.3 -7.6 | 282 13 12.4 -2.6 11 487 6096 305 15 12.3 -8.6 | 294 9 8.4 -3.6 12 400 7620 180 31 0.0 31.0 | 174 36 -3.9 36.0 13 400 7620 190 29 5.0 28.6 | 182 34 1.1 33.5 14 325 9144 110 26 -24.4 8.9 | 116 32 -28.4 13.9 15 300 9740 85 20 -19.9 -1.7 | 98 24 -23.9 3.2 16 263 10668 90 19 -19.0 0.0 | 102 23 -22.9 5.0 17 250 11020 90 18 -18.0 0.0 | 103 22 -21.9 5.0 18 210 12192 80 17 -16.7 -3.0 | 96 21 -20.7 2.0 19 200 12510 60 24 -20.8 -12.0 | 74 26 -24.7 -7.0 20 165 13716 95 26 -25.9 2.3 | 104 31 -29.8 7.2 21 150 14320 95 19 -18.9 1.7 | 106 24 -22.9 6.6 22 128 15240 90 27 -27.0 0.0 | 99 31 -30.9 5.0 23 109 16191 90 36 -36.0 0.0 | 97 40 -39.9 5.0 24 104 16459 90 36 -36.0 0.0 | 97 40 -39.9 5.0 25 100 16680 115 32 -29.0 13.5 | 119 38 -32.9 18.5 26 75 18288 100 35 -34.5 6.1 | 106 40 -38.4 11.0 27 70 18690 95 30 -29.9 2.6 | 103 35 -33.8 7.6 28 58 19812 120 20 -17.3 10.0 | 125 26 -21.2 15.0 29 50 20640 205 28 11.8 25.4 | 195 31 7.9 30.3 30 45 21336 215 31 17.8 25.4 | 205 33 13.9 30.4 31 35 22860 105 17 -16.4 4.4 | 115 22 -20.3 9.4 32 30 23790 90 14 -14.0 0.0 | 105 19 -17.9 5.0 33 26 24384 100 16 -15.8 2.8 | 111 21 -19.7 7.7 34 24 24689 85 26 -25.9 -2.3 | 95 30 -29.8 2.7 Wind Parameters Mean winds (0-6000m): 291.6 at 8.4 knts Storm direction: 321.6 at 6.3 knts Shear (0-3000m) pos: 0.5 neg: 1.5 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): -62.1 deg Storm rel helicity (0-3000m) pos: 6.9 neg: -21.4 tot: -14.4 m^2/s^2 ave: -4.8 10^-3 m/s^2 rel: -0.43 Storm rel vorticity (0-3000m) horiz: 3.0 stream: -1.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 139.38 Bulk Shear: 10.25 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 ------------------------------------------------------------------------------- 500 214 5 173 9| 0.0 1.4 1.4| 0.0 -3.5 -3.5 -6.9 -0.78| 1.9 -1.5 1000 207 3 164 8| 0.0 2.9 2.9| 0.0 -11.9 -11.9 -11.9 -0.82| 3.5 -2.8 1500 221 3 166 8| 0.0 3.0 3.0| 0.0 -18.7 -18.7 -12.4 -0.79| 4.0 -3.2 2000 5 4 107 4| 0.6 2.2 2.8| 0.0 -21.4 -21.4 -10.7 -0.78| 3.6 -2.8 2500 31 4 104 6| 0.5 1.8 2.3| 3.4 -21.4 -18.0 -7.2 -0.58| 3.3 -1.9 3000 40 4 105 7| 0.5 1.5 2.0| 6.9 -21.4 -14.4 -4.8 -0.43| 3.0 -1.3 4000 47 4 108 7| 0.6 1.1 1.7| 13.3 -21.4 -8.1 -2.0 -0.24| 2.6 -0.6 5000 24 4 99 6| 0.4 3.1 3.6| 14.8 -86.7 -71.9 -14.4 -0.59| 5.4 -3.2 6000 292 8 245 4| 1.6 2.8 4.4|107.3-350.6-243.3 -40.6 -0.41| 11.2 -4.6 Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20250421.12.gif