UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101700.upa.cvt Date: 0000Z 17 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:0000Z 17 OCT 25 Station: VVTS WMO ident: 48900 Latitude: 10.82 Longitude: 106.67 Elevation: 19.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1009 19 27.4 24.0 82 3.4 24.9 285 1 299.8 303.2 297.7 355.3 18.94 1 1000 85 26.0 24.0 89 2.0 24.6 305 3 299.1 302.6 297.7 355.0 19.11 2 993 147 25.4 23.4 89 2.0 23.9 317 4 299.2 302.5 297.4 353.3 18.55 3 971 346 26.8 20.8 70 6.0 22.5 354 8 302.5 305.5 296.7 350.2 16.13 4 925 774 23.8 18.9 74 4.9 20.4 75 15 303.6 306.4 296.3 348.3 15.02 5 850 1509 18.4 16.9 91 1.5 17.4 85 23 305.4 308.1 296.3 348.5 14.40 6 824 1776 16.8 16.1 96 0.7 16.3 87 23 306.5 309.1 296.4 348.9 14.11 7 792 2114 15.0 14.8 99 0.2 14.9 89 22 308.0 310.6 296.4 348.8 13.49 8 700 3154 10.0 7.4 84 2.6 8.4 95 21 313.6 315.3 294.9 342.3 9.27 9 661 3630 7.8 3.4 74 4.4 5.2 95 20 316.3 317.7 294.2 339.6 7.41 10 624 4104 5.2 -2.8 56 8.0 1.1 95 20 318.5 319.5 293.0 334.6 4.99 11 592 4532 2.2 -0.5 82 2.7 0.7 95 19 319.9 321.1 294.3 340.0 6.25 12 533 5374 -2.9 -7.4 71 4.5 -5.0 95 18 323.5 324.3 293.6 337.1 4.12 13 513 5677 -4.3 -10.3 63 6.0 -6.9 95 17 325.4 326.1 293.5 336.8 3.41 14 510 5724 -4.5 -8.9 71 4.4 -6.5 95 17 325.7 326.5 294.0 338.5 3.83 15 507 5770 -4.5 -14.5 46 10.0 -8.4 95 17 326.3 326.7 293.0 334.6 2.45 16 500 5880 -5.1 -12.1 58 7.0 -8.0 95 17 326.8 327.4 293.6 337.1 3.02 17 489 6054 -6.3 -10.9 70 4.6 -8.3 96 17 327.4 328.1 294.0 338.9 3.41 18 470 6363 -7.5 -15.5 53 8.0 -10.6 98 16 329.7 330.2 293.9 338.1 2.43 19 453 6648 -9.5 -10.9 90 1.4 -10.1 99 15 330.7 331.4 295.1 343.2 3.68 20 443 6820 -10.1 -12.4 83 2.3 -11.1 100 15 332.0 332.7 295.1 343.5 3.33 21 437 6924 -10.5 -19.5 48 9.0 -13.6 101 15 332.8 333.2 294.1 339.4 1.87 22 430 7048 -11.5 -14.2 80 2.7 -12.6 102 14 333.1 333.7 295.1 343.4 2.96 23 425 7138 -11.9 -16.7 67 4.8 -13.7 102 14 333.7 334.2 294.8 342.2 2.44 24 424 7156 -11.7 -22.7 40 11.0 -15.1 102 14 334.2 334.5 294.1 339.4 1.46 25 417 7283 -11.9 -24.9 33 13.0 -15.7 103 14 335.5 335.8 294.3 339.9 1.22 26 400 7600 -13.7 -19.7 60 6.0 -15.7 105 13 337.2 337.6 295.4 344.4 2.01 27 395 7695 -14.7 -19.5 67 4.8 -16.3 105 13 337.1 337.5 295.4 344.5 2.07 28 391 7772 -14.7 -29.7 27 15.0 -18.4 105 13 338.1 338.2 294.6 341.2 0.83 29 386 7869 -15.1 -33.1 20 18.0 -19.2 104 12 338.8 338.9 294.6 341.1 0.61 30 343 8749 -21.3 -41.3 15 20.0 -24.5 102 10 342.0 342.1 295.1 343.2 0.30 31 331 9011 -23.5 -32.5 43 9.0 -25.4 102 9 342.5 342.7 295.6 345.4 0.75 32 300 9720 -29.3 -45.3 20 16.0 -31.2 100 7 344.1 344.1 295.5 345.0 0.22 33 296 9816 -29.9 -47.9 16 18.0 -31.8 103 7 344.6 344.6 295.6 345.3 0.17 34 291 9938 -30.5 -39.5 41 9.0 -31.8 106 8 345.4 345.5 296.0 347.1 0.43 35 276 10312 -33.7 -47.7 23 14.0 -35.0 116 10 346.0 346.1 295.9 346.8 0.19 36 258 10783 -37.5 -45.5 43 8.0 -38.2 129 12 347.2 347.2 296.3 348.2 0.25 37 250 11000 -39.1 -48.1 38 9.0 -39.8 135 13 347.9 348.0 296.4 348.7 0.20 38 224 11743 -44.5 -58.5 20 14.0 -45.1 133 9 350.8 350.8 296.8 351.0 0.06 39 204 12361 -50.3 -60.3 30 10.0 -50.6 130 6 351.1 351.1 296.9 351.4 0.06 40 200 12490 -51.7 -59.7 38 8.0 -52.0 130 5 350.9 350.9 296.9 351.2 0.06 41 198 12555 -52.1 -56.2 61 4.1 -52.2 125 5 351.3 351.3 297.0 351.7 0.10 42 163 13783 -61.9 -68.9 39 7.0 -62.0 34 4 354.9 354.9 297.7 355.0 0.02 43 150 14290 -66.7 -71.7 49 5.0 -66.7 355 3 355.2 355.2 297.7 355.3 0.02 44 130 15140 -74.7 -77.6 64 2.9 -74.7 20 5 355.7 355.7 297.8 355.7 0.01 45 113 15945 -80.1 -85.0 44 4.9 -80.1 45 6 360.2 360.2 298.7 360.2 0.00 46 104 16411 -83.5 -88.0 45 4.5 -83.5 60 7 362.3 362.3 299.1 362.3 0.00 47 101 16574 -81.9 -87.9 35 6.0 -81.9 67 11 368.4 368.4 300.3 368.4 0.00 48 100 16630 -81.9 -86.8 43 4.9 -81.9 70 13 369.5 369.5 300.5 369.5 0.00 TRP 104 16411 -83.5 -88.0 45 4.5 -83.5 60 7 362.3 362.3 299.1 362.3 0.00 WND Sounding variables and indices 1000-500 mb thick: 5795.00 m Freezing level: 566.55 mb = 4895.51 m = 16061.19 ft Wetbulb zero: 584.57 mb = 4633.52 m = 15201.66 ft Precipitable water: 2.31 inches Sfc-500 mean rel hum: 79.22 % Est. max temperature: 32.84 C = 91.11 F Sfc-Lift cond lev (LCL): 960.87 mb = 438.10 m = 1437.33 ft T: 26.15 C 700-500 lapse rate: 5.54 C/km ThetaE index: 14.24 C Layer 792.0- 592.0 mb Conv cond level (CCL): 859.08 mb = 1416.62 m = 4647.63 ft Mean mixing ratio: 16.37 g/kg Conv temperature: 32.83 C = 91.10 F Cap Strength: 2.08 C Lifted Index: -2.37 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.19 C Lifted Index @700 mb: -0.74 C Showalter Index: -1.60 C Risk: Thunderstorms probable Total Totals Index: 45.50 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.50 C Cross Totals Index: 22.00 C K Index: 37.80 Risk: > 80 % chance of thunderstorms Sweat Index: 265.80 Risk: None Energy Index: -2.27 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 435.11 J/kg Max Up Vert Vel: 29.50 m/s Conv Inhibition (B-): 51.60 J/kg Cap Strength: 2.08 C Lift Cond Lev (LCL): 897.79 mb = 1033.54 m = 3390.84 ft Lev Free Conv (LFC): 812.79 mb = 1892.49 m = 6208.89 ft Equ Level (EL): 232.79 mb = 11482.85 m = 37672.95 ft B at Equ Level: 429.46 J/kg Max Parcel Lev (MPL): 112.79 mb = 15955.31 m = 52346.19 ft Wind level data Storm motion: 120 at 14 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 1009 19 285 1 1.0 -0.3 | 299 15 12.9 -7.3 1 1000 85 305 3 2.5 -1.7 | 301 17 14.4 -8.7 2 925 774 75 15 -14.5 -3.9 | 13 11 -2.5 -10.9 3 850 1509 85 23 -22.9 -2.0 | 51 14 -11.0 -9.0 4 700 3154 95 21 -20.9 1.8 | 60 10 -9.0 -5.2 5 500 5880 95 17 -16.9 1.5 | 42 7 -5.0 -5.5 6 400 7600 105 13 -12.6 3.4 | 10 4 -0.6 -3.6 7 300 9720 100 7 -6.9 1.2 | 319 8 5.1 -5.8 8 250 11000 135 13 -9.2 9.2 | 232 4 2.8 2.2 9 200 12490 130 5 -3.8 3.2 | 295 9 8.1 -3.8 10 150 14290 355 3 0.3 -3.0 | 309 16 12.2 -10.0 11 104 16411 60 7 -6.1 -3.5 | 331 12 5.9 -10.5 12 100 16630 70 13 -12.2 -4.4 | 1 11 -0.3 -11.5 Wind Parameters Mean winds (0-6000m): 90.4 at 18.5 knts Storm direction: 120.4 at 13.8 knts Shear (0-3000m) pos: 3.8 neg: 0.0 tot: 3.8 10-3/s Storm rel Dir Shear (0-3000m): 119.8 deg Storm rel helicity (0-3000m) pos: 127.6 neg: 0.0 tot: 127.6 m^2/s^2 ave: 42.5 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 6.6 stream: 5.4 10^-3/s Energy-Hel index: 0.34 Bulk Rich Number: 9.49 Bulk Shear: 45.86 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 8 6 320 17| 11.1 0.0 11.1| 58.2 0.0 58.2 116.4 0.83| 14.8 12.3 1000 70 10 347 11| 9.6 0.0 9.6|103.3 0.0 103.3 103.3 0.84| 14.8 12.4 1500 77 14 7 10| 8.2 0.0 8.2|121.5 0.0 121.5 81.0 0.85| 11.8 10.1 2000 81 16 21 10| 6.0 0.0 6.0|123.9 0.0 123.9 61.9 0.84| 9.2 7.7 2500 83 17 29 10| 4.7 0.0 4.7|125.9 0.0 125.9 50.4 0.83| 7.7 6.3 3000 85 18 34 10| 3.8 0.0 3.8|127.6 0.0 127.6 42.5 0.81| 6.6 5.4 4000 88 19 40 10| 2.8 0.1 2.9|127.9 -1.9 126.0 31.5 0.77| 5.2 4.0 5000 89 19 43 10| 2.2 0.2 2.4|127.9 -4.2 123.7 24.7 0.72| 4.3 3.1 6000 90 18 43 9| 1.8 0.3 2.0|127.9 -6.4 121.5 20.3 0.66| 3.7 2.5 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251017.00.gif