UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120900.upa.cvt Date: 0000Z 9 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:0000Z 9 DEC 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 1011 19 23.8 20.9 84 2.9 21.8 350 1 296.0 298.8 294.5 340.9 15.57 1 1000 101 23.4 19.9 81 3.5 20.9 5 3 296.5 299.2 294.1 339.2 14.78 2 938 659 20.2 19.6 96 0.6 19.8 91 1 298.8 301.6 295.3 343.9 15.49 3 925 780 20.0 17.5 86 2.5 18.3 110 1 299.8 302.3 294.3 339.9 13.73 4 913 893 20.0 15.6 76 4.4 17.1 111 2 300.9 303.1 293.6 337.0 12.30 5 850 1506 15.4 13.3 87 2.1 14.0 115 5 302.3 304.4 293.3 335.9 11.37 6 774 2296 11.6 10.9 95 0.7 11.2 98 6 306.4 308.4 293.9 338.4 10.64 7 759 2460 13.8 -2.2 33 16.0 5.6 95 6 310.5 311.3 289.9 323.9 4.29 8 749 2572 14.4 -5.6 25 20.0 4.6 92 6 312.3 313.0 289.7 323.1 3.36 9 743 2640 14.0 1.0 41 13.0 6.8 91 6 312.6 313.7 291.7 330.0 5.54 10 731 2778 14.2 -18.8 9 33.0 1.7 88 7 314.3 314.5 288.2 318.3 1.18 11 714 2976 13.6 -25.4 5 39.0 0.5 84 7 315.8 315.9 288.1 318.1 0.68 12 700 3143 12.6 -24.4 6 37.0 0.0 80 7 316.4 316.6 288.4 319.1 0.76 13 651 3747 9.2 -29.8 4 39.0 -2.5 77 12 319.2 319.3 289.0 321.0 0.50 14 634 3965 7.0 -3.0 49 10.0 1.8 76 14 319.1 320.1 293.0 334.8 4.84 15 630 4017 7.2 -17.8 15 25.0 -2.3 75 15 320.0 320.2 290.3 325.1 1.50 16 623 4109 6.6 -23.4 10 30.0 -3.5 75 15 320.3 320.5 289.8 323.5 0.93 17 616 4202 6.0 -25.0 9 31.0 -4.0 74 16 320.6 320.8 289.8 323.5 0.82 18 602 4389 4.4 -26.6 8 31.0 -5.1 73 18 320.9 321.0 289.8 323.5 0.72 19 579 4704 1.4 -10.6 40 12.0 -3.8 72 21 321.0 321.6 291.9 330.8 2.94 20 568 4858 0.0 -3.0 80 3.0 -1.6 71 22 321.1 322.2 294.0 338.6 5.41 21 563 4929 -0.5 -3.6 80 3.1 -2.1 70 23 321.3 322.4 293.9 338.3 5.21 22 559 4986 0.0 -10.0 47 10.0 -4.4 70 23 322.6 323.2 292.6 333.2 3.20 23 547 5159 -1.7 -6.5 70 4.8 -4.0 69 25 322.6 323.4 293.5 336.7 4.30 24 538 5291 -2.1 -19.1 26 17.0 -8.1 68 26 323.6 323.9 291.5 329.0 1.57 25 525 5485 -2.9 -25.9 15 23.0 -9.7 67 28 324.9 325.1 291.2 328.1 0.88 26 506 5776 -4.5 -17.5 35 13.0 -9.2 66 30 326.4 326.8 292.5 333.0 1.91 27 500 5870 -4.9 -9.5 70 4.6 -7.0 65 31 327.1 327.8 294.2 339.6 3.72 28 498 5902 -5.1 -8.8 75 3.7 -6.8 65 31 327.2 328.0 294.4 340.5 3.95 29 489 6045 -6.1 -11.1 68 5.0 -8.2 66 31 327.7 328.3 294.1 339.0 3.35 30 473 6305 -7.5 -24.5 24 17.0 -12.6 69 32 329.1 329.3 292.6 333.1 1.11 31 459 6539 -8.9 -15.9 57 7.0 -11.5 71 33 330.2 330.7 294.0 338.5 2.41 32 445 6779 -8.5 -35.5 9 27.0 -14.7 73 33 333.6 333.7 293.1 335.2 0.42 33 421 7208 -10.9 -42.9 5 32.0 -16.8 77 34 335.9 335.9 293.5 336.7 0.21 34 400 7600 -13.7 -46.7 4 33.0 -19.0 80 35 337.2 337.2 293.7 337.8 0.14 35 377 8046 -16.9 -50.9 4 34.0 -21.5 84 31 338.7 338.7 294.1 339.1 0.09 36 336 8896 -23.9 -50.9 6 27.0 -26.9 92 24 340.5 340.5 294.6 340.9 0.11 37 313 9408 -28.1 -37.1 42 9.0 -29.5 97 20 341.6 341.7 295.2 343.6 0.51 38 311 9453 -28.5 -36.5 46 8.0 -29.8 97 19 341.7 341.8 295.2 343.8 0.54 39 300 9710 -29.9 -31.1 89 1.2 -30.1 100 17 343.2 343.4 295.9 346.8 0.95 40 299 9734 -29.9 -31.0 90 1.1 -30.1 101 17 343.6 343.8 296.0 347.2 0.96 41 270 10456 -35.3 -39.5 65 4.2 -35.8 117 18 345.9 346.0 296.1 347.7 0.46 42 250 10990 -39.7 -44.2 62 4.5 -40.1 130 19 347.0 347.1 296.3 348.3 0.30 43 216 11969 -47.9 -58.9 27 11.0 -48.3 117 23 349.1 349.2 296.5 349.4 0.06 44 205 12310 -51.1 -60.1 33 9.0 -51.4 112 24 349.4 349.4 296.5 349.6 0.06 45 200 12470 -52.3 -62.3 29 10.0 -52.6 110 25 349.9 350.0 296.7 350.1 0.04 46 189 12833 -55.5 -67.5 21 12.0 -55.7 109 28 350.5 350.5 296.8 350.6 0.02 47 174 13353 -59.9 -69.9 26 10.0 -60.0 108 33 351.6 351.6 297.0 351.7 0.02 48 160 13870 -64.9 -67.6 69 2.7 -64.9 106 38 351.7 351.7 297.0 351.8 0.03 49 150 14260 -68.3 -72.2 57 3.9 -68.3 105 42 352.4 352.4 297.2 352.5 0.01 50 136 14839 -73.7 -78.2 50 4.5 -73.7 106 47 352.9 352.9 297.3 352.9 0.01 51 116 15749 -80.9 -85.6 45 4.7 -80.9 108 56 356.0 356.0 297.9 356.0 0.00 52 103 16409 -85.9 -89.7 50 3.8 -85.9 110 62 358.8 358.8 298.5 358.8 0.00 53 101 16516 -86.7 -90.4 51 3.7 -86.7 115 58 359.2 359.2 298.5 359.2 0.00 54 100 16570 -86.5 -90.3 50 3.8 -86.5 115 54 360.6 360.6 298.8 360.6 0.00 TRP 101 16516 -86.7 -90.4 51 3.7 -86.7 115 58 359.2 359.2 298.5 359.2 0.00 WND 103 16409 -85.9 -89.7 50 3.8 -85.9 110 62 358.8 358.8 298.5 358.8 0.00 Sounding variables and indices 1000-500 mb thick: 5769.00 m Freezing level: 568.00 mb = 4858.24 m = 15938.91 ft Freezing level: 559.00 mb = 4985.98 m = 16358.02 ft Freezing level: 559.00 mb = 4985.98 m = 16358.02 ft Wetbulb zero: 699.62 mb = 3147.57 m = 10326.56 ft Precipitable water: 1.52 inches Sfc-500 mean rel hum: 49.64 % Est. max temperature: 29.83 C = 85.69 F Sfc-Lift cond lev (LCL): 969.39 mb = 372.06 m = 1220.64 ft T: 21.85 C 700-500 lapse rate: 6.42 C/km ThetaE index: 15.39 C Layer 759.0- 743.0 mb Conv cond level (CCL): 883.59 mb = 1173.64 m = 3850.47 ft Mean mixing ratio: 14.74 g/kg Conv temperature: 29.33 C = 84.79 F Cap Strength: 4.85 C Lifted Index: 1.47 C Risk: Showers probable Lifted Index @300 mb: 3.60 C Lifted Index @700 mb: 4.61 C Showalter Index: 3.63 C Risk: None Total Totals Index: 38.50 C Risk: None Vertical Totals Index: 20.30 C Cross Totals Index: 18.20 C K Index: -3.40 Risk: None Sweat Index: 200.60 Risk: None Energy Index: 0.72 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 18.27 J/kg Max Up Vert Vel: 6.05 m/s Conv Inhibition (B-): 29.64 J/kg Cap Strength: 4.77 C Lift Cond Lev (LCL): 928.33 mb = 748.88 m = 2456.91 ft Lev Free Conv (LFC): 843.33 mb = 1572.44 m = 5158.87 ft Equ Level (EL): 773.33 mb = 2303.05 m = 7555.84 ft B at Equ Level: 17.26 J/kg Max Parcel Lev (MPL): 753.33 mb = 2523.62 m = 8279.49 ft Wind level data Storm motion: 102 at 9 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 19 350 1 0.2 -1.0 | 287 9 8.9 -2.8 1 1000 101 5 3 -0.3 -3.0 | 300 10 8.4 -4.8 2 925 780 110 1 -0.9 0.3 | 281 8 7.7 -1.5 3 850 1506 115 5 -4.5 2.1 | 266 4 4.2 0.3 4 700 3143 80 7 -6.9 -1.2 | 329 4 1.8 -3.0 5 500 5870 65 31 -28.1 -13.1 | 52 24 -19.4 -14.9 6 400 7600 80 35 -34.5 -6.1 | 73 27 -25.8 -7.9 7 300 9710 100 17 -16.7 3.0 | 98 8 -8.1 1.2 8 250 10990 130 19 -14.6 12.2 | 151 12 -5.9 10.4 9 200 12470 110 25 -23.5 8.6 | 115 16 -14.8 6.7 10 150 14260 105 42 -40.6 10.9 | 106 33 -31.9 9.1 11 103 16409 110 62 -58.3 21.2 | 111 53 -49.6 19.4 12 101 16516 115 58 -52.6 24.5 | 117 49 -43.9 22.7 13 100 16570 115 54 -48.9 22.8 | 118 45 -40.3 21.0 Wind Parameters Mean winds (0-6000m): 71.7 at 11.8 knts Storm direction: 101.7 at 8.9 knts Shear (0-3000m) pos: 1.0 neg: 0.6 tot: 1.6 10-3/s Storm rel Dir Shear (0-3000m): 37.3 deg Storm rel helicity (0-3000m) pos: 7.6 neg: -7.4 tot: 0.2 m^2/s^2 ave: 0.1 10^-3 m/s^2 rel: 0.09 Storm rel vorticity (0-3000m) horiz: 2.3 stream: 0.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.27 Bulk Shear: 14.41 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 23 2 297 9| 1.9 0.0 1.9| 5.0 -3.1 1.9 3.7 0.11| 5.0 0.5 1000 39 2 294 8| 1.5 0.0 1.5| 5.0 -5.9 -0.9 -0.9 -0.12| 3.7 -0.4 1500 86 3 288 6| 1.9 0.0 1.9| 5.0 -7.4 -2.4 -1.6 -0.20| 3.4 -0.7 2000 98 3 284 6| 1.5 0.3 1.8| 5.7 -7.4 -1.7 -0.9 -0.11| 2.8 -0.3 2500 98 4 285 5| 1.2 0.5 1.7| 6.6 -7.4 -0.8 -0.3 -0.00| 2.5 -0.0 3000 94 4 289 5| 1.0 0.6 1.6| 7.6 -7.4 0.2 0.1 0.09| 2.3 0.2 4000 86 6 306 4| 0.7 1.5 2.2| 14.5 -7.4 7.1 1.8 0.33| 2.8 0.9 5000 78 8 353 4| 0.6 2.1 2.7| 18.9 -7.4 11.5 2.3 0.28| 3.2 0.9 6000 72 12 25 6| 0.5 2.4 2.9| 23.6 -9.1 14.5 2.4 0.23| 3.4 0.8 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251209.00.gif