UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120612.upa.cvt Date: 1200Z 6 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 6 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 1012 19 26.8 22.4 77 4.4 23.6 150 3 298.9 302.0 296.4 348.8 17.09 1 1000 103 26.0 21.9 78 4.1 23.0 150 7 299.1 302.2 296.2 348.1 16.77 2 925 788 21.8 18.8 83 3.0 19.7 310 9 301.6 304.3 295.6 345.6 14.93 3 850 1518 16.6 15.0 90 1.6 15.5 5 13 303.5 305.9 294.6 341.3 12.72 4 823 1792 14.4 13.5 94 0.9 13.8 19 13 304.0 306.2 294.2 339.5 11.90 5 807 1958 13.8 10.6 81 3.2 11.8 28 14 305.1 307.0 293.1 335.1 10.00 6 799 2042 15.8 3.8 45 12.0 8.9 32 14 308.1 309.3 291.0 327.4 6.30 7 792 2117 16.2 -0.8 31 17.0 7.2 36 14 309.3 310.2 289.8 323.5 4.55 8 776 2290 15.8 -14.2 11 30.0 3.5 45 14 310.7 311.0 287.5 316.1 1.64 9 759 2478 15.0 -12.0 14 27.0 3.4 55 14 311.8 312.2 288.2 318.3 2.01 10 702 3133 9.8 -0.2 50 10.0 4.4 89 15 313.1 314.1 291.7 330.0 5.38 11 700 3157 9.6 -1.4 46 11.0 3.8 90 15 313.1 314.1 291.3 328.7 4.93 12 686 3324 8.6 -6.4 34 15.0 1.5 89 15 313.8 314.5 290.2 324.9 3.45 13 677 3433 8.2 -9.8 27 18.0 0.3 88 15 314.6 315.1 289.8 323.3 2.68 14 671 3507 8.6 -1.4 49 10.0 3.3 87 15 315.8 316.8 292.3 332.2 5.15 15 613 4249 5.4 -34.6 4 40.0 -5.1 82 14 320.4 320.5 289.2 321.6 0.33 16 601 4410 4.6 -30.4 6 35.0 -5.4 81 14 321.3 321.4 289.7 323.1 0.51 17 546 5183 -1.7 -6.7 69 5.0 -4.1 75 14 322.7 323.6 293.5 336.7 4.24 18 539 5286 -1.9 -12.9 43 11.0 -6.4 74 13 323.7 324.2 292.4 332.5 2.63 19 514 5662 -3.9 -18.9 30 15.0 -9.2 72 13 325.7 326.0 292.1 331.5 1.67 20 502 5848 -3.3 -28.3 12 25.0 -10.4 70 13 328.6 328.8 292.1 331.3 0.74 21 500 5880 -3.3 -27.3 14 24.0 -10.3 70 13 329.0 329.2 292.3 332.0 0.81 22 464 6467 -6.7 -21.7 29 15.0 -11.6 70 13 331.9 332.2 293.6 337.1 1.45 23 445 6792 -8.3 -34.3 10 26.0 -14.5 70 13 333.9 334.0 293.2 335.6 0.47 24 442 6845 -8.3 -27.3 20 19.0 -13.7 70 13 334.5 334.7 293.8 337.9 0.92 25 416 7312 -12.3 -18.3 61 6.0 -14.4 70 13 335.2 335.7 295.0 342.9 2.17 26 408 7460 -13.3 -25.3 36 12.0 -16.7 70 13 335.8 336.0 294.4 340.2 1.20 27 406 7497 -13.7 -19.7 60 6.0 -15.7 70 13 335.7 336.2 295.0 342.8 1.98 28 400 7610 -14.7 -19.7 66 5.0 -16.4 70 13 335.9 336.3 295.0 343.0 2.01 29 399 7629 -14.7 -19.7 66 5.0 -16.4 70 13 336.1 336.5 295.1 343.3 2.01 30 350 8610 -21.3 -30.3 44 9.0 -23.3 77 10 340.0 340.2 295.1 343.4 0.88 31 331 9020 -24.9 -28.6 71 3.7 -25.7 80 9 340.6 340.8 295.4 344.6 1.09 32 308 9541 -28.1 -38.1 38 10.0 -29.6 84 8 343.2 343.3 295.5 345.0 0.46 33 300 9730 -29.7 -39.7 37 10.0 -31.1 85 7 343.5 343.6 295.6 345.1 0.40 34 291 9946 -31.1 -44.1 27 13.0 -32.6 84 8 344.5 344.6 295.7 345.6 0.26 35 269 10496 -36.1 -45.1 39 9.0 -37.0 82 11 345.1 345.1 295.8 346.1 0.25 36 252 10946 -38.9 -53.9 19 15.0 -39.9 80 13 347.4 347.5 296.1 347.9 0.10 37 250 11000 -39.5 -54.5 19 15.0 -40.4 80 13 347.3 347.4 296.1 347.7 0.09 38 222 11798 -46.5 -59.5 21 13.0 -47.0 112 17 348.6 348.6 296.4 348.8 0.06 39 209 12194 -49.9 -58.9 34 9.0 -50.2 128 19 349.3 349.3 296.5 349.6 0.06 40 200 12480 -52.1 -69.1 11 17.0 -52.4 140 21 350.3 350.3 296.7 350.3 0.02 41 189 12844 -55.5 -68.5 18 13.0 -55.7 140 24 350.5 350.5 296.8 350.6 0.02 42 183 13050 -57.1 -61.7 56 4.6 -57.2 140 26 351.2 351.2 296.9 351.4 0.05 43 169 13550 -61.3 -65.5 57 4.2 -61.4 140 31 352.3 352.3 297.1 352.4 0.03 44 153 14160 -66.7 -69.7 66 3.0 -66.7 140 37 353.2 353.2 297.3 353.3 0.02 45 150 14280 -67.9 -71.3 62 3.4 -67.9 140 38 353.1 353.1 297.3 353.2 0.02 46 147 14401 -68.9 -73.7 50 4.8 -68.9 138 36 353.4 353.4 297.4 353.5 0.01 47 140 14693 -70.3 -82.3 16 12.0 -70.4 131 33 355.9 355.9 297.9 356.0 0.00 48 136 14865 -71.7 -83.7 15 12.0 -71.8 128 31 356.4 356.4 298.0 356.4 0.00 49 100 16630 -83.3 -90.3 28 7.0 -83.3 90 7 366.8 366.8 300.0 366.8 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5777.00 m Freezing level: 560.84 mb = 4974.46 m = 16320.19 ft Wetbulb zero: 648.15 mb = 3791.22 m = 12438.25 ft Precipitable water: 1.62 inches Sfc-500 mean rel hum: 48.46 % Est. max temperature: 31.11 C = 87.99 F Sfc-Lift cond lev (LCL): 949.53 mb = 558.02 m = 1830.77 ft T: 23.21 C 700-500 lapse rate: 4.74 C/km ThetaE index: 32.69 C Layer 1000.0- 759.0 mb Conv cond level (CCL): 883.84 mb = 1180.98 m = 3874.57 ft Mean mixing ratio: 15.82 g/kg Conv temperature: 30.54 C = 86.97 F Cap Strength: 2.21 C Lifted Index: 0.78 C Risk: Showers probable Lifted Index @300 mb: 0.40 C Lifted Index @700 mb: -0.09 C Showalter Index: 2.95 C Risk: Showers probable Total Totals Index: 38.20 C Risk: None Vertical Totals Index: 19.90 C Cross Totals Index: 18.30 C K Index: 23.90 Risk: 20-40 % chance of thunderstorms Sweat Index: 219.00 Risk: None Energy Index: -1.74 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 57.16 J/kg Max Up Vert Vel: 10.69 m/s Conv Inhibition (B-): 16.60 J/kg Cap Strength: 2.23 C Lift Cond Lev (LCL): 913.12 mb = 899.59 m = 2951.36 ft Lev Free Conv (LFC): 858.12 mb = 1435.91 m = 4710.92 ft Equ Level (EL): 798.12 mb = 2051.42 m = 6730.29 ft B at Equ Level: 18.19 J/kg Max Parcel Lev (MPL): 768.12 mb = 2376.86 m = 7798.00 ft Wind level data Storm motion: 95 at 10 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 1012 19 150 3 -1.5 2.6 | 258 8 8.1 1.8 1 1000 103 150 7 -3.5 6.1 | 229 8 6.1 5.2 2 925 788 310 9 6.9 -5.8 | 292 18 16.5 -6.6 3 850 1518 5 13 -1.1 -13.0 | 328 16 8.5 -13.8 4 700 3157 90 15 -15.0 0.0 | 81 5 -5.4 -0.8 5 500 5880 70 13 -12.2 -4.4 | 27 6 -2.6 -5.3 6 400 7610 70 13 -12.2 -4.4 | 27 6 -2.6 -5.3 7 300 9730 85 7 -7.0 -0.6 | 299 3 2.6 -1.4 8 250 11000 80 13 -12.8 -2.3 | 46 4 -3.2 -3.1 9 200 12480 140 21 -13.5 16.1 | 166 16 -3.9 15.3 10 150 14280 140 38 -24.4 29.1 | 152 32 -14.8 28.3 11 100 16630 90 7 -7.0 0.0 | 288 3 2.6 -0.8 Wind Parameters Mean winds (0-6000m): 64.9 at 12.8 knts Storm direction: 94.9 at 9.6 knts Shear (0-3000m) pos: 2.4 neg: 0.0 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 164.9 deg Storm rel helicity (0-3000m) pos: 169.3 neg: -8.7 tot: 160.6 m^2/s^2 ave: 53.5 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 9.6 stream: 6.9 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 1.32 Bulk Shear: 43.44 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 ------------------------------------------------------------------------------- 500 194 7 242 13| 9.4 0.0 9.4| 30.1 -8.7 21.4 42.7 0.23| 17.0 4.0 1000 295 8 284 17| 6.8 0.0 6.8| 89.0 -8.7 80.3 80.3 0.56| 15.0 8.4 1500 335 9 304 16| 5.3 0.0 5.3|125.0 -8.7 116.2 77.5 0.65| 12.8 8.3 2000 355 10 316 15| 3.9 0.0 3.9|144.2 -8.7 135.5 67.7 0.68| 11.1 7.5 2500 12 11 328 14| 3.0 0.0 3.0|158.5 -8.7 149.8 59.9 0.69| 10.2 7.1 3000 27 12 339 12| 2.4 0.0 2.4|169.3 -8.7 160.6 53.5 0.71| 9.6 6.9 4000 52 12 1 8| 1.8 0.1 1.9|171.9 -11.0 160.9 40.2 0.67| 7.7 5.2 5000 61 13 13 7| 1.4 0.3 1.7|171.9 -13.7 158.2 31.6 0.62| 6.3 3.9 6000 65 13 18 7| 1.2 0.4 1.6|171.9 -16.0 155.9 26.0 0.58| 5.4 3.1 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251206.12.gif