UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042300.upa.cvt Date: 0000Z 23 APR 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:0000Z 23 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 82 SFC 988 181 26.8 22.2 76 4.6 23.5 320 1 301.0 304.2 297.0 351.9 17.30 2 987 190 27.2 23.1 78 4.1 24.2 318 1 301.5 304.8 297.8 355.5 18.32 3 925 771 25.8 16.8 58 9.0 19.6 250 19 305.7 308.1 295.5 345.0 13.12 4 909 925 26.0 14.0 48 12.0 17.9 260 21 307.4 309.5 294.6 341.0 11.12 5 850 1513 22.0 13.0 57 9.0 16.0 290 12 309.2 311.3 295.1 343.1 11.14 6 788 2165 16.4 11.4 72 5.0 13.1 280 8 310.0 312.0 295.0 343.0 10.81 7 767 2395 15.2 10.8 75 4.4 12.3 276 7 311.1 313.1 295.2 343.8 10.67 8 731 2802 13.4 3.4 51 10.0 7.6 269 7 313.4 314.7 292.9 334.4 6.70 9 700 3166 11.2 3.2 58 8.0 6.6 265 6 314.9 316.2 293.4 336.6 6.90 10 694 3238 10.4 4.4 66 6.0 6.9 258 6 314.8 316.2 294.0 338.5 7.58 11 672 3505 9.0 3.0 66 6.0 5.5 231 7 316.1 317.5 293.9 338.5 7.09 12 665 3591 9.0 -5.0 37 14.0 2.1 223 7 317.1 317.8 291.7 329.9 3.96 13 661 3641 8.2 2.2 66 6.0 4.8 218 7 316.7 318.0 293.9 338.3 6.80 14 652 3754 7.2 3.2 76 4.0 4.9 212 7 316.8 318.3 294.4 340.2 7.41 15 644 3856 6.8 2.5 74 4.3 4.3 209 8 317.5 318.9 294.3 340.1 7.14 16 636 3958 6.8 -5.2 42 12.0 0.9 206 8 318.6 319.4 292.2 331.9 4.08 17 626 4088 5.4 -0.6 65 6.0 2.1 201 9 318.5 319.6 293.6 337.2 5.86 18 601 4420 3.6 -11.4 32 15.0 -2.9 191 10 320.1 320.7 291.4 329.0 2.66 19 581 4693 1.8 -0.8 83 2.6 0.4 180 11 321.1 322.4 294.6 341.2 6.23 20 568 4876 0.8 -7.2 55 8.0 -3.0 171 12 322.1 322.8 293.0 335.0 3.92 21 566 4904 0.6 -5.4 64 6.0 -2.3 170 12 322.1 323.0 293.6 337.0 4.52 22 561 4975 0.4 -16.6 27 17.0 -6.0 171 11 322.7 323.1 291.5 329.1 1.86 23 557 5032 0.0 -12.0 40 12.0 -5.1 171 11 322.9 323.5 292.3 332.1 2.74 24 542 5251 -0.5 -18.5 24 18.0 -7.0 173 9 324.8 325.2 291.9 330.5 1.64 25 540 5280 -0.9 -7.9 59 7.0 -4.2 173 9 324.7 325.5 293.7 337.7 3.91 26 537 5325 -1.3 -7.3 64 6.0 -4.1 174 8 324.8 325.6 293.9 338.4 4.12 27 529 5444 -2.1 -8.1 63 6.0 -4.9 175 7 325.2 326.0 293.9 338.3 3.93 28 526 5489 -1.9 -16.9 31 15.0 -7.5 175 7 326.0 326.3 292.4 332.6 1.93 29 512 5703 -4.1 -8.4 72 4.3 -6.1 146 5 325.8 326.6 294.1 339.1 3.96 30 500 5890 -4.3 -14.3 46 10.0 -8.3 120 3 327.8 328.3 293.4 336.5 2.53 31 497 5938 -4.5 -16.5 39 12.0 -9.0 123 3 328.1 328.5 293.2 335.4 2.12 32 490 6049 -5.3 -9.5 72 4.2 -7.2 131 4 328.5 329.2 294.6 341.3 3.80 33 470 6377 -6.7 -27.7 17 21.0 -12.6 135 6 330.7 330.8 292.7 333.7 0.83 34 466 6443 -7.3 -19.3 38 12.0 -11.5 135 6 330.7 331.1 293.6 337.0 1.78 35 462 6511 -7.7 -22.7 29 15.0 -12.5 135 6 331.1 331.3 293.3 335.8 1.34 36 459 6561 -7.7 -26.7 20 19.0 -13.1 135 7 331.7 331.9 293.1 335.1 0.94 37 441 6872 -9.7 -30.7 16 21.0 -15.0 135 9 333.0 333.1 293.2 335.5 0.67 38 433 7014 -10.9 -20.9 44 10.0 -14.2 135 9 333.2 333.5 294.1 339.1 1.67 39 426 7139 -11.7 -29.7 21 18.0 -16.3 135 10 333.7 333.9 293.4 336.5 0.76 40 421 7230 -12.3 -20.3 51 8.0 -14.9 135 11 334.1 334.4 294.4 340.5 1.81 41 417 7303 -12.5 -32.5 17 20.0 -17.1 135 11 334.7 334.9 293.6 337.0 0.60 42 401 7601 -14.7 -25.7 39 11.0 -17.7 135 13 335.6 335.9 294.3 339.9 1.18 43 400 7620 -14.7 -26.7 35 12.0 -17.9 135 13 335.9 336.1 294.3 339.8 1.08 44 395 7715 -15.1 -42.1 8 27.0 -19.8 137 12 336.6 336.6 293.7 337.5 0.24 45 391 7791 -15.9 -26.9 38 11.0 -18.8 138 11 336.5 336.7 294.4 340.5 1.08 46 389 7830 -16.1 -34.1 20 18.0 -19.9 139 11 336.7 336.9 294.0 338.8 0.55 47 379 8025 -17.1 -23.1 60 6.0 -18.9 143 10 337.9 338.3 295.2 343.6 1.57 48 378 8045 -17.1 -30.1 31 13.0 -20.2 143 10 338.2 338.4 294.6 341.3 0.83 49 372 8164 -17.7 -36.7 17 19.0 -21.4 145 10 338.9 339.0 294.5 340.7 0.44 50 368 8245 -18.3 -39.3 14 21.0 -22.1 147 10 339.2 339.3 294.4 340.5 0.34 51 349 8637 -21.3 -38.3 20 17.0 -24.2 155 8 340.3 340.4 294.8 341.9 0.40 52 322 9224 -26.3 -29.8 72 3.5 -27.1 166 6 341.3 341.5 295.6 345.1 1.00 53 301 9706 -30.1 -32.7 78 2.6 -30.6 170 4 342.6 342.8 295.7 345.7 0.81 54 300 9730 -30.3 -33.3 75 3.0 -30.8 170 4 342.7 342.8 295.7 345.6 0.77 55 277 10292 -34.9 -36.2 88 1.3 -35.1 197 5 343.9 344.1 295.8 346.4 0.63 56 265 10600 -37.1 -39.4 79 2.3 -37.4 211 5 345.1 345.2 296.0 347.0 0.47 57 250 11000 -40.3 -42.8 77 2.5 -40.5 245 7 346.2 346.2 296.1 347.6 0.35 58 200 12490 -51.9 -56.9 55 5.0 -52.1 105 4 350.6 350.6 296.8 351.0 0.09 59 150 14290 -67.1 -71.5 54 4.4 -67.1 90 12 354.5 354.5 297.6 354.6 0.02 60 100 16670 -77.7 -87.7 18 10.0 -77.7 115 30 377.6 377.6 301.9 377.6 0.00 61 75 18280 -84.9 -89.8 41 4.9 -84.9 185 9 394.9 394.9 304.5 394.9 0.00 62 70 18660 -84.5 -90.5 34 6.0 -84.5 135 9 403.6 403.6 305.7 403.6 0.00 63 69 18740 -84.7 -90.7 34 6.0 -84.7 126 9 404.8 404.8 305.9 404.8 0.00 64 63 19259 -71.5 -88.5 6 17.0 -71.6 71 8 444.6 444.6 310.3 444.6 0.00 65 54 20169 -72.3 -90.3 5 18.0 -72.4 89 9 462.8 462.8 312.0 462.8 0.00 66 50 20630 -64.7 -89.7 2 25.0 -65.0 180 12 491.0 491.0 314.3 491.0 0.00 67 48 20880 -62.5 -89.5 1 27.0 -62.9 148 11 502.0 502.0 315.1 502.0 0.00 68 42 21707 -60.7 -88.7 1 28.0 -61.3 83 17 526.0 526.0 316.7 526.0 0.00 69 36 22657 -64.1 -90.1 2 26.0 -64.6 64 33 540.9 540.9 317.6 541.0 0.00 70 30 23790 -57.5 -87.5 1 30.0 -58.7 115 18 587.9 587.9 320.0 587.9 0.01 71 27 24456 -56.9 -86.9 1 30.0 -58.3 104 20 607.6 607.6 320.9 607.6 0.01 TRP 75 18280 -84.9 -89.8 41 4.9 -84.9 185 9 394.9 394.9 304.5 394.9 0.00 WND Sounding variables and indices 1000-500 mb thick: 5808.00 m Freezing level: 557.00 mb = 5032.36 m = 16510.17 ft Wetbulb zero: 615.31 mb = 4228.14 m = 13871.68 ft Precipitable water: 1.77 inches Sfc-500 mean rel hum: 58.50 % Est. max temperature: 35.13 C = 95.23 F Sfc-Lift cond lev (LCL): 924.30 mb = 777.67 m = 2551.37 ft T: 25.81 C 700-500 lapse rate: 5.69 C/km ThetaE index: 14.47 C Layer 925.0- 850.0 mb Conv cond level (CCL): 761.09 mb = 2460.44 m = 8072.21 ft Mean mixing ratio: 14.15 g/kg Conv temperature: 37.23 C = 99.02 F Cap Strength: 4.22 C Lifted Index: -0.34 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.38 C Lifted Index @700 mb: 1.40 C Showalter Index: 1.25 C Risk: Showers probable Total Totals Index: 43.60 C Risk: None Vertical Totals Index: 26.30 C Cross Totals Index: 17.30 C K Index: 31.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 183.00 Risk: None Energy Index: -1.27 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 94.98 J/kg Max Up Vert Vel: 13.78 m/s Conv Inhibition (B-): 228.13 J/kg Cap Strength: 4.22 C Lift Cond Lev (LCL): 833.84 mb = 1678.29 m = 5506.13 ft Lev Free Conv (LFC): 618.84 mb = 4181.61 m = 13719.01 ft Equ Level (EL): 448.84 mb = 6735.38 m = 22097.43 ft B at Equ Level: 63.04 J/kg Max Parcel Lev (MPL): 198.84 mb = 12526.40 m = 41096.60 ft Wind level data Storm motion: 264 at 7 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 ---------------------------------------------------------- 0 988 181 320 1 0.6 -0.8 | 77 6 -6.2 -1.4 1 942 610 235 12 9.8 6.9 | 206 7 3.0 6.2 2 925 771 250 19 17.9 6.5 | 242 12 11.0 5.8 3 910 914 260 21 20.7 3.6 | 258 14 13.9 3.0 4 850 1513 290 12 11.3 -4.1 | 317 7 4.5 -4.8 5 849 1524 290 12 11.3 -4.1 | 317 7 4.5 -4.8 6 790 2134 280 8 7.9 -1.4 | 333 2 1.1 -2.1 7 710 3048 265 6 6.0 0.5 | 80 1 -0.8 -0.1 8 700 3166 265 6 6.0 0.5 | 80 1 -0.8 -0.1 9 659 3658 215 7 4.0 5.7 | 151 6 -2.8 5.1 10 588 4572 185 11 1.0 11.0 | 150 12 -5.9 10.3 11 567 4877 170 12 -2.1 11.8 | 141 14 -8.9 11.1 12 526 5486 175 7 -0.6 7.0 | 130 10 -7.4 6.3 13 500 5890 120 3 -2.6 1.5 | 95 9 -9.4 0.8 14 487 6096 135 4 -2.8 2.8 | 103 10 -9.6 2.2 15 400 7620 135 13 -9.2 9.2 | 118 18 -16.0 8.5 16 400 7620 135 12 -8.5 8.5 | 117 17 -15.3 7.8 17 325 9144 165 6 -1.6 5.8 | 121 10 -8.4 5.1 18 300 9730 170 4 -0.7 3.9 | 114 8 -7.5 3.3 19 262 10668 215 5 2.9 4.1 | 131 5 -3.9 3.4 20 250 11000 245 7 6.3 3.0 | 168 2 -0.5 2.3 21 209 12192 290 8 7.5 -2.7 | 348 3 0.7 -3.4 22 200 12490 105 4 -3.9 1.0 | 92 11 -10.7 0.4 23 164 13716 110 8 -7.5 2.7 | 98 14 -14.3 2.1 24 150 14290 90 12 -12.0 0.0 | 88 19 -18.8 -0.7 25 128 15240 100 30 -29.5 5.2 | 97 37 -36.4 4.5 26 104 16459 85 32 -31.9 -2.8 | 85 39 -38.7 -3.5 27 100 16670 115 30 -27.2 12.7 | 109 36 -34.0 12.0 28 75 18280 185 9 0.8 9.0 | 144 10 -6.0 8.3 29 75 18288 180 21 0.0 21.0 | 161 21 -6.8 20.3 30 70 18660 135 9 -6.4 6.4 | 113 14 -13.2 5.7 31 57 19812 15 7 -1.8 -6.8 | 49 11 -8.6 -7.4 32 50 20630 180 12 0.0 12.0 | 149 13 -6.8 11.3 33 45 21336 90 10 -10.0 0.0 | 88 17 -16.8 -0.7 34 35 22860 60 37 -32.0 -18.5 | 64 43 -38.9 -19.2 35 30 23790 115 18 -16.3 7.6 | 107 24 -23.1 6.9 36 26 24384 100 21 -20.7 3.6 | 96 28 -27.5 3.0 37 24 24689 100 23 -22.7 4.0 | 96 30 -29.5 3.3 Wind Parameters Mean winds (0-6000m): 234.4 at 9.1 knts Storm direction: 264.4 at 6.8 knts Shear (0-3000m) pos: 1.9 neg: 2.5 tot: 4.3 10-3/s Storm rel Dir Shear (0-3000m): 14.0 deg Storm rel helicity (0-3000m) pos: 51.8 neg: -6.2 tot: 45.6 m^2/s^2 ave: 15.2 10^-3 m/s^2 rel: 0.22 Storm rel vorticity (0-3000m) horiz: 8.0 stream: 1.8 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 224.81 Bulk Shear: 0.42 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 ------------------------------------------------------------------------------- 500 239 8 174 3| 0.0 15.4 15.4| 3.1 -6.2 -3.0 -6.1 -0.48| 19.3 -9.3 1000 254 13 244 7| 4.6 7.7 12.3| 38.9 -6.2 32.8 32.8 0.07| 16.9 1.2 1500 263 13 261 7| 3.7 5.1 8.8| 50.6 -6.2 44.4 29.6 0.19| 13.9 2.7 2000 267 12 271 5| 2.8 3.6 6.4| 51.4 -6.2 45.2 22.6 0.20| 11.3 2.2 2500 268 11 275 5| 2.2 2.9 5.2| 51.6 -6.2 45.4 18.2 0.20| 9.3 1.9 3000 268 10 276 4| 1.9 2.5 4.3| 51.8 -6.2 45.6 15.2 0.22| 8.0 1.8 4000 259 10 247 3| 1.4 2.7 4.1| 52.8 -6.7 46.1 11.5 0.21| 7.1 1.5 5000 243 10 207 4| 1.1 2.1 3.2| 52.8 -18.9 33.9 6.8 0.13| 6.6 0.8 6000 234 9 187 5| 0.9 1.2 2.2| 56.6 -38.5 18.1 3.0 0.03| 6.4 0.2 Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20250423.00.gif