UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041812.upa.cvt Date: 1200Z 18 APR 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:1200Z 18 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 33 SFC 983 181 30.8 23.8 66 7.0 25.6 270 3 305.4 309.0 299.3 363.1 19.21 2 969 311 29.4 21.4 62 8.0 23.6 265 5 305.3 308.4 297.8 355.5 16.78 3 960 395 30.6 19.6 52 11.0 22.7 263 6 307.3 310.1 297.3 352.9 15.12 4 925 730 28.0 19.0 58 9.0 21.6 250 9 307.9 310.8 297.4 353.6 15.12 5 850 1474 21.4 18.0 81 3.4 19.0 225 8 308.6 311.5 297.8 355.4 15.46 6 819 1796 18.6 16.8 89 1.8 17.4 218 7 308.9 311.7 297.5 354.0 14.86 7 721 2879 11.4 10.9 97 0.5 11.1 202 6 312.5 314.6 296.1 347.7 11.44 8 700 3127 10.4 7.4 82 3.0 8.5 200 6 314.0 315.8 295.0 342.8 9.27 9 681 3356 9.2 5.4 77 3.8 6.9 198 7 315.1 316.7 294.6 341.1 8.29 10 617 4168 5.0 -1.0 65 6.0 1.8 211 11 319.3 320.5 293.8 337.9 5.77 11 603 4355 4.0 1.8 86 2.2 2.7 217 11 320.3 321.7 295.1 343.5 7.25 12 549 5115 0.8 -4.2 69 5.0 -1.8 243 12 325.2 326.2 294.8 342.1 5.11 13 508 5734 -3.3 -5.7 83 2.4 -4.5 240 12 327.5 328.5 295.3 343.9 4.93 14 500 5860 -3.9 -8.7 69 4.8 -6.1 240 13 328.3 329.1 294.7 341.6 3.97 15 494 5955 -4.3 -13.3 49 9.0 -8.0 238 13 328.9 329.5 293.9 338.4 2.78 16 492 5987 -4.5 -9.2 70 4.7 -6.7 237 13 329.1 329.8 294.8 342.2 3.88 17 488 6052 -4.9 -11.9 58 7.0 -7.9 236 13 329.3 330.0 294.3 340.1 3.15 18 483 6133 -5.5 -8.1 82 2.6 -6.7 235 13 329.6 330.4 295.3 344.1 4.30 19 438 6895 -10.1 -17.1 57 7.0 -12.7 232 15 333.1 333.6 294.6 341.1 2.29 20 410 7402 -13.5 -14.4 93 0.9 -13.9 231 16 335.1 335.7 295.7 345.7 3.06 21 400 7590 -14.3 -17.7 75 3.4 -15.5 230 16 336.4 336.9 295.5 344.8 2.38 22 378 8018 -16.5 -24.5 50 8.0 -18.8 238 15 339.0 339.3 295.3 344.1 1.39 23 376 8058 -16.3 -27.3 38 11.0 -19.2 238 15 339.8 340.0 295.2 343.8 1.08 24 361 8363 -19.3 -23.6 69 4.3 -20.5 244 15 339.7 340.1 295.6 345.5 1.58 25 357 8446 -19.9 -29.9 41 10.0 -22.2 246 14 340.0 340.2 295.1 343.4 0.90 26 348 8636 -21.3 -24.7 74 3.4 -22.2 250 14 340.6 340.9 295.7 346.1 1.48 27 337 8873 -21.5 -33.5 33 12.0 -24.0 254 14 343.5 343.6 295.7 346.1 0.67 28 326 9117 -23.3 -37.3 27 14.0 -25.8 259 13 344.3 344.4 295.8 346.1 0.48 29 322 9208 -24.3 -36.3 32 12.0 -26.5 262 13 344.1 344.2 295.8 346.2 0.53 30 321 9230 -24.7 -29.7 63 5.0 -25.8 263 13 343.9 344.1 296.1 347.7 1.01 31 317 9322 -25.3 -27.8 80 2.5 -25.9 266 13 344.3 344.5 296.4 348.9 1.23 32 302 9672 -28.1 -30.6 79 2.5 -28.6 278 12 345.1 345.3 296.4 348.9 0.99 33 300 9720 -28.5 -31.4 76 2.9 -29.1 280 12 345.2 345.4 296.4 348.7 0.92 34 250 11000 -38.1 -42.5 63 4.4 -38.6 275 14 349.4 349.5 296.8 350.9 0.36 35 231 11537 -42.7 -46.5 66 3.8 -43.0 262 14 350.4 350.5 297.0 351.5 0.25 36 224 11744 -44.1 -58.1 20 14.0 -44.7 257 13 351.4 351.4 297.0 351.7 0.07 37 222 11803 -44.9 -52.9 40 8.0 -45.3 255 13 351.0 351.1 297.0 351.6 0.13 38 211 12140 -47.7 -57.7 31 10.0 -48.1 246 13 351.8 351.8 297.1 352.1 0.07 39 209 12203 -48.5 -53.1 59 4.6 -48.7 245 13 351.5 351.5 297.1 352.1 0.13 40 200 12490 -50.9 -55.7 57 4.8 -51.1 240 12 352.2 352.2 297.2 352.6 0.10 41 173 13414 -59.1 -61.6 73 2.5 -59.2 229 12 353.5 353.5 297.4 353.8 0.06 42 150 14290 -66.5 -72.5 43 6.0 -66.5 250 16 355.5 355.5 297.8 355.6 0.01 43 122 15511 -76.5 -78.9 68 2.4 -76.5 190 11 358.9 358.9 298.5 358.9 0.01 44 118 15702 -77.9 -82.2 50 4.3 -77.9 166 9 359.8 359.8 298.7 359.8 0.00 45 112 16000 -78.3 -85.3 31 7.0 -78.3 129 7 364.4 364.4 299.5 364.4 0.00 46 100 16640 -82.7 -87.6 42 4.9 -82.7 95 8 367.9 367.9 300.2 368.0 0.00 47 96 16866 -83.9 -88.5 44 4.6 -83.9 95 7 369.9 369.9 300.5 369.9 0.00 48 87 17414 -80.7 -87.7 30 7.0 -80.7 83 8 386.9 386.9 303.3 386.9 0.00 49 70 18630 -82.5 -88.5 35 6.0 -82.5 5 12 407.9 407.9 306.2 407.9 0.00 50 67 18874 -83.3 -89.3 34 6.0 -83.3 26 11 411.3 411.3 306.7 411.3 0.00 51 54 20108 -72.3 -91.3 4 19.0 -72.4 126 8 462.8 462.8 312.0 462.8 0.00 TRP 96 16866 -83.9 -88.5 44 4.6 -83.9 95 7 369.9 369.9 300.5 369.9 0.00 WND Sounding variables and indices 1000-500 mb thick: 5827.00 m Freezing level: 541.00 mb = 5235.61 m = 17177.00 ft Wetbulb zero: 570.29 mb = 4806.79 m = 15770.12 ft Precipitable water: 2.29 inches Sfc-500 mean rel hum: 77.44 % Est. max temperature: 34.09 C = 93.36 F Sfc-Lift cond lev (LCL): 888.77 mb = 1081.59 m = 3548.49 ft T: 24.88 C 700-500 lapse rate: 5.23 C/km ThetaE index: 17.52 C Layer 819.0- 603.0 mb Conv cond level (CCL): 798.71 mb = 2008.89 m = 6590.77 ft Mean mixing ratio: 15.62 g/kg Conv temperature: 34.95 C = 94.91 F Cap Strength: 1.34 C Lifted Index: -2.51 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.56 C Lifted Index @700 mb: -1.40 C Showalter Index: -2.81 C Risk: Severe thunderstorms possible Total Totals Index: 47.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.30 C Cross Totals Index: 21.90 C K Index: 40.30 Risk: > 80 % chance of thunderstorms Sweat Index: 245.00 Risk: None Energy Index: -2.73 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 858.55 J/kg Max Up Vert Vel: 41.44 m/s Conv Inhibition (B-): 43.33 J/kg Cap Strength: 1.34 C Lift Cond Lev (LCL): 823.89 mb = 1744.07 m = 5721.93 ft Lev Free Conv (LFC): 768.89 mb = 2332.48 m = 7652.42 ft Equ Level (EL): 158.89 mb = 13936.36 m = 45722.41 ft B at Equ Level: 854.57 J/kg Max Parcel Lev (MPL): 88.89 mb = 17294.63 m = 56740.24 ft Wind level data Storm motion: 257 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 ---------------------------------------------------------- 0 983 181 270 3 3.0 -0.0 | 66 4 -3.5 -1.5 1 937 610 255 9 8.7 2.3 | 250 2 2.2 0.8 2 925 730 250 9 8.5 3.1 | 232 2 2.0 1.5 3 906 914 245 9 8.2 3.8 | 216 3 1.7 2.3 4 850 1474 225 8 5.7 5.7 | 168 4 -0.8 4.1 5 845 1524 225 8 5.7 5.7 | 168 4 -0.8 4.1 6 787 2134 210 6 3.0 5.2 | 136 5 -3.5 3.7 7 707 3048 200 6 2.1 5.6 | 133 6 -4.4 4.1 8 700 3127 200 6 2.1 5.6 | 133 6 -4.4 4.1 9 656 3658 195 9 2.3 8.7 | 150 8 -4.2 7.2 10 586 4572 225 12 8.5 8.5 | 196 7 2.0 6.9 11 564 4877 245 13 11.8 5.5 | 233 7 5.3 4.0 12 524 5486 240 9 7.8 4.5 | 204 3 1.3 3.0 13 500 5860 240 13 11.3 6.5 | 224 7 4.8 5.0 14 485 6096 235 13 10.6 7.5 | 215 7 4.1 5.9 15 400 7590 230 16 12.3 10.3 | 213 10 5.8 8.7 16 398 7620 230 16 12.3 10.3 | 213 10 5.8 8.7 17 324 9144 260 13 12.8 2.3 | 263 6 6.3 0.7 18 300 9720 280 12 11.8 -2.1 | 304 6 5.3 -3.6 19 262 10668 280 12 11.8 -2.1 | 304 6 5.3 -3.6 20 250 11000 275 14 13.9 -1.2 | 290 8 7.4 -2.8 21 209 12192 245 13 11.8 5.5 | 233 7 5.3 4.0 22 200 12490 240 12 10.4 6.0 | 221 6 3.9 4.5 23 164 13716 225 12 8.5 8.5 | 196 7 2.0 6.9 24 150 14290 250 16 15.0 5.5 | 245 9 8.5 3.9 25 127 15240 220 13 8.4 10.0 | 192 9 1.9 8.4 26 103 16459 70 3 -2.8 -1.0 | 75 10 -9.3 -2.6 27 100 16640 95 8 -8.0 0.7 | 87 14 -14.5 -0.8 28 96 16866 95 7 -7.0 0.6 | 86 14 -13.5 -0.9 29 74 18288 65 9 -8.2 -3.8 | 70 16 -14.7 -5.3 30 70 18630 5 12 -1.0 -12.0 | 29 15 -7.5 -13.5 31 56 19812 115 8 -7.3 3.4 | 98 14 -13.8 1.8 32 49 20422 160 7 -2.4 6.6 | 120 10 -8.9 5.0 Wind Parameters Mean winds (0-6000m): 226.7 at 8.9 knts Storm direction: 256.7 at 6.7 knts Shear (0-3000m) pos: 0.0 neg: 1.0 tot: 1.0 10-3/s Storm rel Dir Shear (0-3000m): 68.8 deg Storm rel helicity (0-3000m) pos: 0.4 neg: -8.0 tot: -7.6 m^2/s^2 ave: -2.5 10^-3 m/s^2 rel: -0.69 Storm rel vorticity (0-3000m) horiz: 2.6 stream: -1.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 288.32 Bulk Shear: 2.98 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 ------------------------------------------------------------------------------- 500 258 6 53 0| 0.0 6.4 6.4| 0.0 -1.2 -1.2 -2.4 -0.58| 7.1 -4.1 1000 250 8 212 1| 0.0 3.2 3.2| 0.0 -3.0 -3.0 -3.0 -0.68| 4.9 -3.3 1500 242 8 191 2| 0.0 2.0 2.0| 0.0 -5.2 -5.2 -3.4 -0.72| 4.1 -2.9 2000 236 8 174 3| 0.0 1.3 1.3| 0.0 -7.5 -7.5 -3.8 -0.75| 3.6 -2.7 2500 231 7 163 3| 0.0 1.1 1.1| 0.0 -7.8 -7.8 -3.1 -0.73| 3.0 -2.2 3000 227 7 157 4| 0.0 1.0 1.0| 0.4 -8.0 -7.6 -2.5 -0.69| 2.6 -1.8 4000 219 7 157 5| 0.4 1.1 1.5| 10.8 -8.0 2.8 0.7 -0.25| 2.7 -0.7 5000 223 8 170 5| 0.8 0.9 1.7| 24.2 -9.5 14.7 2.9 0.03| 3.2 0.1 6000 227 9 180 5| 0.7 1.0 1.7| 26.0 -12.7 13.3 2.2 0.00| 3.2 0.0 Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20250418.12.gif