UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:0000Z 18 OCT 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 95 SFC 990 181 25.0 23.1 89 1.9 23.6 0 0 299.0 302.3 297.1 352.3 18.26 2 925 779 21.8 19.9 89 1.9 20.5 70 15 301.6 304.5 296.4 348.8 16.01 3 850 1513 18.6 16.9 90 1.7 17.4 70 11 305.6 308.3 296.4 348.8 14.40 4 834 1676 17.2 16.5 96 0.7 16.7 66 11 305.8 308.5 296.3 348.7 14.30 5 738 2713 11.4 10.4 94 1.0 10.7 68 12 310.4 312.4 295.1 343.4 10.80 6 700 3156 10.0 6.6 79 3.4 7.9 80 13 313.6 315.2 294.5 340.8 8.77 7 662 3618 8.2 -1.8 49 10.0 2.9 80 14 316.6 317.6 292.4 332.8 5.07 8 643 3858 6.4 2.7 77 3.7 4.3 80 13 317.2 318.6 294.4 340.1 7.25 9 634 3973 5.8 -1.2 61 7.0 2.1 80 12 317.8 318.9 293.2 335.5 5.53 10 602 4396 3.8 -3.2 60 7.0 0.2 80 9 320.2 321.2 293.4 336.5 5.02 11 601 4409 4.0 -3.0 60 7.0 0.4 80 9 320.6 321.6 293.6 337.2 5.11 12 564 4922 0.6 -3.6 73 4.2 -1.6 86 8 322.5 323.5 294.2 339.5 5.20 13 533 5374 -1.9 -11.9 46 10.0 -6.1 97 10 324.7 325.3 292.9 334.4 2.88 14 500 5880 -4.9 -9.7 69 4.8 -7.0 85 11 327.1 327.8 294.1 339.4 3.66 15 475 6281 -7.7 -11.8 72 4.1 -9.4 78 10 328.4 329.1 294.2 339.5 3.26 16 469 6380 -8.1 -15.1 57 7.0 -10.8 77 10 329.1 329.6 293.8 337.8 2.52 17 468 6397 -8.3 -11.1 80 2.8 -9.5 77 10 329.1 329.8 294.6 341.0 3.50 18 414 7339 -14.1 -23.1 46 9.0 -16.8 68 6 333.4 333.7 294.0 338.5 1.44 19 408 7450 -13.7 -33.7 17 20.0 -18.1 67 6 335.3 335.4 293.7 337.3 0.54 20 400 7600 -14.5 -26.5 35 12.0 -17.7 65 5 336.1 336.4 294.4 340.2 1.10 21 398 7638 -14.9 -24.9 42 10.0 -17.7 70 6 336.1 336.4 294.5 340.7 1.27 22 385 7888 -16.7 -33.7 21 17.0 -20.3 67 7 336.9 337.1 294.1 339.1 0.58 23 374 8105 -18.3 -33.3 26 15.0 -21.5 65 8 337.6 337.8 294.3 340.0 0.62 24 373 8125 -18.5 -26.5 49 8.0 -20.6 65 8 337.6 337.9 294.8 341.9 1.18 25 362 8348 -18.7 -42.7 10 24.0 -22.6 63 9 340.3 340.3 294.6 341.2 0.24 26 313 9414 -26.5 -39.5 28 13.0 -28.5 64 8 343.8 343.9 295.6 345.4 0.40 27 304 9625 -27.1 -50.1 9 23.0 -29.6 72 5 345.9 345.9 295.8 346.4 0.13 28 300 9720 -27.9 -48.9 12 21.0 -30.2 75 4 346.1 346.1 295.9 346.7 0.15 29 286 10061 -30.9 -55.9 7 25.0 -32.9 70 3 346.5 346.5 295.9 346.8 0.07 30 250 11000 -38.9 -48.9 34 10.0 -39.7 5 5 348.2 348.3 296.4 349.0 0.18 31 226 11684 -44.9 -52.9 40 8.0 -45.3 320 7 349.2 349.3 296.6 349.8 0.12 32 222 11804 -45.9 -59.9 19 14.0 -46.4 312 8 349.5 349.5 296.5 349.7 0.05 33 204 12361 -50.7 -64.7 17 14.0 -51.1 277 11 350.5 350.5 296.8 350.6 0.03 34 200 12490 -51.9 -64.9 20 13.0 -52.2 270 12 350.6 350.6 296.8 350.7 0.03 35 176 13306 -59.3 -66.3 40 7.0 -59.4 283 11 351.5 351.5 297.0 351.6 0.03 36 150 14290 -67.3 -70.7 62 3.4 -67.3 305 10 354.2 354.2 297.5 354.2 0.02 37 147 14411 -68.3 -70.7 71 2.4 -68.3 303 10 354.5 354.5 297.6 354.6 0.02 38 128 15227 -75.3 -80.3 45 5.0 -75.3 291 7 356.2 356.2 298.0 356.2 0.00 39 123 15457 -76.5 -82.5 38 6.0 -76.5 305 7 358.1 358.1 298.3 358.1 0.00 40 103 16464 -82.3 -86.2 51 3.9 -82.3 40 4 365.6 365.6 299.8 365.6 0.00 41 100 16630 -80.9 -86.9 36 6.0 -80.9 45 7 371.4 371.4 300.8 371.4 0.00 42 87 17412 -81.5 -86.4 43 4.9 -81.5 71 13 385.3 385.3 303.1 385.3 0.00 43 70 18650 -75.3 -88.3 11 13.0 -75.3 120 11 423.3 423.3 308.1 423.3 0.00 44 66 18993 -73.5 -89.5 7 16.0 -73.6 100 14 434.4 434.4 309.3 434.4 0.00 45 63 19269 -68.7 -89.7 3 21.0 -68.8 85 16 450.8 450.8 310.9 450.8 0.00 46 55 20086 -67.7 -89.7 3 22.0 -67.9 63 19 470.9 470.9 312.7 470.9 0.00 47 50 20660 -68.3 -89.3 3 21.0 -68.5 80 17 482.5 482.5 313.7 482.6 0.00 48 49 20781 -68.7 -90.7 3 22.0 -68.9 81 17 484.4 484.4 313.8 484.4 0.00 49 44 21436 -62.3 -89.3 2 27.0 -62.8 84 14 515.2 515.2 316.0 515.2 0.00 50 40 22026 -60.9 -87.9 2 27.0 -61.5 81 16 532.9 532.9 317.1 532.9 0.00 51 37 22510 -62.1 -88.1 2 26.0 -62.7 78 18 541.9 541.9 317.6 541.9 0.00 TRP 103 16464 -82.3 -86.2 51 3.9 -82.3 40 4 365.6 365.6 299.8 365.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5785.00 m Freezing level: 556.56 mb = 5030.94 m = 16505.49 ft Wetbulb zero: 593.89 mb = 4505.19 m = 14780.61 ft Precipitable water: 2.13 inches Sfc-500 mean rel hum: 76.80 % Est. max temperature: 31.72 C = 89.10 F Sfc-Lift cond lev (LCL): 963.38 mb = 421.00 m = 1381.22 ft T: 23.72 C 700-500 lapse rate: 5.47 C/km ThetaE index: 19.56 C Layer 925.0- 643.0 mb Conv cond level (CCL): 870.51 mb = 1306.05 m = 4284.90 ft Mean mixing ratio: 16.59 g/kg Conv temperature: 30.47 C = 86.85 F Cap Strength: 1.03 C Lifted Index: -1.93 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.50 C Lifted Index @700 mb: -0.57 C Showalter Index: -1.52 C Risk: Thunderstorms probable Total Totals Index: 45.30 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.50 C Cross Totals Index: 21.80 C K Index: 37.00 Risk: > 80 % chance of thunderstorms Sweat Index: 235.80 Risk: None Energy Index: -1.89 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 371.94 J/kg Max Up Vert Vel: 27.27 m/s Conv Inhibition (B-): 25.69 J/kg Cap Strength: 1.03 C Lift Cond Lev (LCL): 914.13 mb = 881.62 m = 2892.43 ft Lev Free Conv (LFC): 819.13 mb = 1828.86 m = 6000.14 ft Equ Level (EL): 309.13 mb = 9504.12 m = 31181.12 ft B at Equ Level: 371.66 J/kg Max Parcel Lev (MPL): 119.13 mb = 15638.90 m = 51308.09 ft Wind level data Storm motion: 105 at 8 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 ---------------------------------------------------------- 0 990 181 0 0 -0.0 -0.0 | 285 8 8.1 -2.2 1 943 610 65 14 -12.7 -5.9 | 29 9 -4.6 -8.2 2 925 779 70 15 -14.1 -5.1 | 39 10 -6.0 -7.4 3 911 914 75 15 -14.5 -3.9 | 46 9 -6.4 -6.1 4 850 1513 70 11 -10.3 -3.8 | 21 6 -2.3 -6.0 5 849 1524 70 11 -10.3 -3.8 | 21 6 -2.3 -6.0 6 790 2134 55 13 -10.6 -7.5 | 15 10 -2.6 -9.7 7 709 3048 75 11 -10.6 -2.8 | 27 6 -2.5 -5.1 8 700 3156 80 13 -12.8 -2.3 | 46 7 -4.7 -4.5 9 658 3658 80 14 -13.8 -2.4 | 51 7 -5.7 -4.7 10 588 4572 80 8 -7.9 -1.4 | 357 4 0.2 -3.6 11 566 4877 85 8 -8.0 -0.7 | 358 3 0.1 -2.9 12 525 5486 100 10 -9.8 1.7 | 74 2 -1.8 -0.5 13 500 5880 85 11 -11.0 -1.0 | 42 4 -2.9 -3.2 14 486 6096 80 11 -10.8 -1.9 | 34 5 -2.7 -4.1 15 400 7600 65 5 -4.5 -2.1 | 321 6 3.6 -4.3 16 399 7620 70 6 -5.6 -2.1 | 330 5 2.4 -4.3 17 324 9144 55 12 -9.8 -6.9 | 11 9 -1.7 -9.1 18 300 9720 75 4 -3.9 -1.0 | 308 5 4.2 -3.3 19 262 10668 60 2 -1.7 -1.0 | 297 7 6.4 -3.2 20 250 11000 5 5 -0.4 -5.0 | 313 11 7.6 -7.2 21 209 12192 285 9 8.7 -2.3 | 285 17 16.8 -4.6 22 200 12490 270 12 12.0 -0.0 | 276 20 20.1 -2.2 23 164 13716 290 11 10.3 -3.8 | 288 19 18.4 -6.0 24 150 14290 305 10 8.2 -5.7 | 296 18 16.3 -8.0 25 127 15240 290 7 6.6 -2.4 | 288 15 14.7 -4.6 26 103 16459 20 5 -1.7 -4.7 | 317 9 6.4 -6.9 27 103 16464 40 4 -2.6 -3.1 | 314 8 5.5 -5.3 28 100 16630 45 7 -4.9 -4.9 | 336 8 3.1 -7.2 29 75 18288 100 19 -18.7 3.3 | 96 11 -10.6 1.1 30 70 18650 120 11 -9.5 5.5 | 156 4 -1.4 3.3 31 58 19812 55 20 -16.4 -11.5 | 31 16 -8.3 -13.7 32 50 20660 80 17 -16.7 -3.0 | 59 10 -8.7 -5.2 33 43 21336 85 14 -13.9 -1.2 | 59 7 -5.9 -3.5 34 31 22860 70 23 -21.6 -7.9 | 53 17 -13.5 -10.1 Wind Parameters Mean winds (0-6000m): 75.5 at 11.2 knts Storm direction: 105.5 at 8.4 knts Shear (0-3000m) pos: 2.5 neg: 0.7 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 121.2 deg Storm rel helicity (0-3000m) pos: 51.3 neg: -7.7 tot: 43.6 m^2/s^2 ave: 14.5 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 5.7 stream: 3.2 10^-3/s Energy-Hel index: 0.10 Bulk Rich Number: 219.71 Bulk Shear: 1.69 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 65 8 352 6| 14.8 0.0 14.8| 40.2 0.0 40.2 80.4 1.00| 17.7 17.7 1000 70 11 22 7| 6.8 0.0 6.8| 44.7 -2.5 42.2 42.2 0.85| 10.8 9.2 1500 70 11 24 7| 4.5 0.8 5.3| 44.7 -6.3 38.4 25.6 0.66| 8.2 5.4 2000 67 12 22 7| 3.4 1.0 4.4| 44.7 -7.7 37.0 18.5 0.57| 6.8 3.9 2500 66 12 21 8| 2.6 0.8 3.4| 46.9 -7.7 39.3 15.7 0.55| 6.0 3.3 3000 67 12 22 7| 2.5 0.7 3.2| 51.3 -7.7 43.6 14.5 0.57| 5.7 3.2 4000 71 12 28 7| 1.9 0.7 2.6| 52.0 -10.8 41.3 10.3 0.46| 4.8 2.2 5000 73 11 26 6| 1.4 0.5 2.0| 52.9 -13.2 39.6 7.9 0.39| 4.3 1.7 6000 75 11 29 6| 1.3 0.6 1.9| 53.6 -15.7 37.9 6.3 0.32| 4.1 1.3 Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20251018.00.gif