UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100812.upa.cvt Date: 1200Z 8 OCT 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 8 OCT 25 Station: VVNB WMO ident: 48820 Latitude: 21.02 Longitude: 105.80 Elevation: 6.00 ------------------------------------------------------------------------------- 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 1011 6 28.0 23.3 76 4.7 24.6 325 1 300.2 303.5 297.3 353.3 18.10 1 1007 40 28.8 22.8 70 6.0 24.4 339 1 301.3 304.6 297.3 353.2 17.61 2 1000 99 28.4 22.4 70 6.0 24.0 5 1 301.5 304.7 297.2 352.5 17.30 3 948 572 24.6 21.3 82 3.3 22.2 80 6 302.3 305.5 297.3 352.8 17.06 4 925 788 23.8 15.8 61 8.0 18.4 115 9 303.6 305.9 294.4 340.2 12.29 5 898 1047 22.8 9.8 44 13.0 14.7 110 10 305.2 306.8 291.9 330.8 8.50 6 850 1523 19.6 8.6 49 11.0 12.8 100 11 306.7 308.2 292.2 331.7 8.27 7 830 1727 18.0 7.0 49 11.0 11.4 98 10 307.1 308.5 291.7 330.2 7.59 8 769 2378 15.0 2.0 41 13.0 7.8 92 7 310.6 311.7 291.3 328.5 5.75 9 760 2477 14.0 9.3 73 4.7 11.0 91 6 310.6 312.4 294.4 340.4 9.73 10 746 2634 14.0 -2.0 33 16.0 5.6 90 6 312.3 313.1 290.6 326.2 4.43 11 704 3121 10.4 4.4 66 6.0 6.9 85 3 313.5 314.9 293.5 336.8 7.47 12 700 3168 10.4 3.4 62 7.0 6.3 85 3 314.0 315.3 293.3 335.9 7.00 13 659 3669 9.4 -9.6 25 19.0 0.8 94 4 318.3 318.9 291.0 327.6 2.80 14 627 4079 6.2 -1.8 56 8.0 2.0 101 5 319.2 320.3 293.4 336.5 5.35 15 603 4398 4.6 -4.4 52 9.0 0.0 107 6 321.0 321.9 293.3 335.9 4.58 16 600 4438 4.8 -13.2 26 18.0 -2.7 108 6 321.7 322.1 291.6 329.4 2.30 17 596 4493 4.4 -7.6 41 12.0 -1.3 109 6 321.8 322.5 292.7 333.8 3.62 18 589 4589 4.0 -21.0 14 25.0 -4.7 111 6 322.4 322.7 290.7 326.7 1.22 19 580 4714 3.2 -20.8 15 24.0 -5.2 113 6 322.9 323.2 290.9 327.3 1.26 20 578 4742 2.8 -7.2 48 10.0 -2.0 113 6 322.8 323.5 293.2 335.5 3.85 21 576 4770 2.4 -4.6 60 7.0 -1.2 114 6 322.6 323.6 293.9 338.1 4.72 22 570 4854 1.8 -11.2 37 13.0 -3.8 116 7 322.9 323.5 292.4 332.4 2.85 23 558 5026 0.8 -5.2 64 6.0 -2.2 119 7 323.7 324.6 294.1 339.0 4.66 24 524 5528 -1.9 -5.9 74 4.0 -3.8 128 8 326.3 327.3 294.8 341.9 4.70 25 512 5712 -2.5 -10.5 54 8.0 -6.1 131 9 327.8 328.4 294.1 339.1 3.36 26 510 5743 -2.3 -20.3 24 18.0 -8.6 132 9 328.4 328.7 292.7 333.6 1.49 27 500 5900 -3.7 -9.7 63 6.0 -6.4 135 9 328.5 329.3 294.6 340.9 3.66 28 497 5948 -3.9 -9.9 63 6.0 -6.6 135 9 328.8 329.6 294.6 341.1 3.63 29 484 6156 -5.1 -15.1 45 10.0 -9.0 134 8 329.9 330.4 293.9 338.3 2.44 30 477 6271 -5.9 -15.9 45 10.0 -9.8 133 8 330.3 330.7 293.9 338.3 2.32 31 475 6303 -6.5 -10.8 71 4.3 -8.4 133 8 329.9 330.6 294.8 342.0 3.54 32 450 6724 -8.5 -12.1 75 3.6 -10.0 130 7 332.5 333.2 295.3 344.1 3.36 33 442 6863 -8.5 -15.5 57 7.0 -11.2 129 7 334.3 334.8 295.1 343.3 2.59 34 421 7239 -11.5 -15.2 74 3.7 -12.9 127 6 335.1 335.7 295.5 344.9 2.79 35 416 7331 -11.5 -19.5 52 8.0 -14.3 127 6 336.2 336.6 295.1 343.3 1.96 36 400 7630 -13.7 -20.7 55 7.0 -16.0 125 5 337.2 337.6 295.2 343.8 1.84 37 397 7687 -14.1 -19.1 66 5.0 -15.8 126 5 337.4 337.8 295.5 345.0 2.13 38 393 7765 -14.5 -23.5 46 9.0 -17.2 126 5 337.8 338.1 295.1 343.2 1.46 39 357 8488 -20.1 -22.1 84 2.0 -20.7 133 5 339.7 340.1 295.8 346.4 1.82 40 302 9712 -28.9 -32.2 73 3.3 -29.5 145 5 344.0 344.2 296.0 347.2 0.85 41 300 9760 -29.3 -33.3 68 4.0 -30.0 145 5 344.1 344.2 296.0 347.0 0.77 42 294 9903 -29.7 -38.7 41 9.0 -31.0 136 5 345.5 345.6 296.0 347.3 0.46 43 264 10656 -36.7 -41.7 60 5.0 -37.2 89 4 346.1 346.1 296.1 347.6 0.37 44 250 11030 -39.5 -49.5 34 10.0 -40.2 65 3 347.3 347.4 296.2 348.0 0.17 45 236 11423 -43.1 -50.1 46 7.0 -43.6 42 4 347.7 347.7 296.3 348.4 0.17 46 222 11833 -46.5 -54.5 40 8.0 -46.9 17 4 348.6 348.6 296.4 349.0 0.10 47 220 11893 -47.1 -58.1 27 11.0 -47.6 13 4 348.6 348.6 296.4 348.8 0.07 48 218 11954 -47.7 -62.7 16 15.0 -48.2 10 4 348.5 348.5 296.4 348.7 0.04 49 214 12076 -48.5 -61.5 21 13.0 -48.9 2 4 349.1 349.2 296.5 349.3 0.05 50 212 12138 -49.1 -55.1 50 6.0 -49.4 359 4 349.2 349.2 296.5 349.6 0.10 51 207 12295 -49.9 -66.9 12 17.0 -50.3 349 5 350.3 350.3 296.7 350.4 0.02 52 200 12520 -51.5 -68.5 11 17.0 -51.9 335 5 351.2 351.2 296.9 351.3 0.02 53 162 13850 -62.5 -71.5 29 9.0 -62.6 41 6 354.5 354.5 297.6 354.6 0.02 54 152 14240 -65.7 -77.7 17 12.0 -65.8 61 7 355.6 355.6 297.8 355.6 0.01 55 150 14320 -65.3 -79.3 13 14.0 -65.4 65 7 357.6 357.6 298.2 357.6 0.00 56 147 14443 -65.7 -80.7 11 15.0 -65.8 67 8 359.0 359.0 298.5 359.0 0.00 57 117 15796 -75.1 -85.1 20 10.0 -75.1 96 19 365.8 365.8 299.8 365.8 0.00 58 100 16690 -81.9 -86.8 43 4.9 -81.9 115 27 369.5 369.5 300.5 369.5 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5801.00 m Freezing level: 547.93 mb = 5174.50 m = 16976.51 ft Wetbulb zero: 602.95 mb = 4398.52 m = 14430.65 ft Precipitable water: 1.74 inches Sfc-500 mean rel hum: 52.04 % Est. max temperature: 34.14 C = 93.46 F Sfc-Lift cond lev (LCL): 944.65 mb = 603.24 m = 1979.11 ft T: 24.48 C 700-500 lapse rate: 5.16 C/km ThetaE index: 22.00 C Layer 925.0- 850.0 mb Conv cond level (CCL): 827.86 mb = 1749.52 m = 5739.83 ft Mean mixing ratio: 15.76 g/kg Conv temperature: 35.02 C = 95.04 F Cap Strength: 3.02 C Lifted Index: -0.44 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.43 C Lifted Index @700 mb: 0.07 C Showalter Index: 6.71 C Risk: None Total Totals Index: 35.60 C Risk: None Vertical Totals Index: 23.30 C Cross Totals Index: 12.30 C K Index: 24.90 Risk: 20-40 % chance of thunderstorms Sweat Index: 134.20 Risk: None Energy Index: 1.86 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 95.77 J/kg Max Up Vert Vel: 13.84 m/s Conv Inhibition (B-): 145.94 J/kg Cap Strength: 3.02 C Lift Cond Lev (LCL): 886.43 mb = 1159.11 m = 3802.82 ft Lev Free Conv (LFC): 571.43 mb = 4834.15 m = 15859.86 ft Equ Level (EL): 411.43 mb = 7414.79 m = 24326.44 ft B at Equ Level: 46.76 J/kg Max Parcel Lev (MPL): 181.43 mb = 13135.13 m = 43093.73 ft Wind level data Storm motion: 141 at 5 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 1011 6 325 1 0.6 -0.8 | 322 6 3.7 -4.7 1 1000 99 5 1 -0.1 -1.0 | 328 6 3.0 -4.9 2 925 788 115 9 -8.2 3.8 | 89 5 -5.1 -0.1 3 850 1523 100 11 -10.8 1.9 | 76 8 -7.7 -2.0 4 700 3168 85 3 -3.0 -0.3 | 358 4 0.1 -4.1 5 500 5900 135 9 -6.4 6.4 | 127 4 -3.3 2.5 6 400 7630 125 5 -4.1 2.9 | 45 1 -1.0 -1.0 7 300 9760 145 5 -2.9 4.1 | 225 0 0.2 0.2 8 250 11030 65 3 -2.7 -1.3 | 356 5 0.4 -5.1 9 200 12520 335 5 2.1 -4.5 | 328 10 5.2 -8.4 10 150 14320 65 7 -6.3 -3.0 | 25 8 -3.2 -6.8 11 100 16690 115 27 -24.5 11.4 | 109 23 -21.4 7.5 Wind Parameters Mean winds (0-6000m): 111.3 at 6.6 knts Storm direction: 141.3 at 5.0 knts Shear (0-3000m) pos: 1.8 neg: 1.1 tot: 2.9 10-3/s Storm rel Dir Shear (0-3000m): 47.5 deg Storm rel helicity (0-3000m) pos: 20.3 neg: -11.7 tot: 8.6 m^2/s^2 ave: 2.9 10^-3 m/s^2 rel: 0.23 Storm rel vorticity (0-3000m) horiz: 4.1 stream: 0.9 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 24.64 Bulk Shear: 3.89 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 58 3 353 5| 6.2 0.0 6.2| 11.0 0.0 11.0 22.0 0.97| 7.0 6.8 1000 110 6 46 3| 5.4 0.0 5.4| 20.3 -0.5 19.8 19.8 0.89| 7.4 6.6 1500 107 7 65 4| 3.6 0.8 4.4| 20.3 -2.5 17.8 11.9 0.70| 5.7 4.0 2000 104 8 66 5| 2.7 0.7 3.3| 20.3 -6.0 14.4 7.2 0.52| 4.9 2.5 2500 102 8 64 5| 2.1 0.9 3.0| 20.3 -9.0 11.3 4.5 0.36| 4.4 1.6 3000 102 7 59 5| 1.8 1.1 2.9| 20.3 -11.7 8.6 2.9 0.23| 4.1 0.9 4000 101 6 50 4| 1.5 0.8 2.3| 22.2 -12.5 9.7 2.4 0.25| 3.4 0.9 5000 104 6 52 4| 1.5 0.7 2.1| 24.7 -12.5 12.1 2.4 0.32| 3.1 1.0 6000 111 7 64 3| 1.4 0.5 1.9| 27.3 -12.6 14.6 2.4 0.37| 2.8 1.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251008.12.gif