UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120500.upa.cvt Date: 0000Z 5 DEC 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:0000Z 5 DEC 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 142 90 2 SFC 995 181 23.2 18.7 76 4.5 20.1 90 2 296.8 299.3 293.4 336.5 13.76 2 925 818 17.8 17.2 96 0.6 17.4 90 17 297.5 299.9 293.4 336.5 13.47 3 921 855 17.4 17.0 97 0.4 17.1 90 17 297.5 299.9 293.3 336.1 13.35 4 871 1335 18.6 16.1 85 2.5 16.9 93 14 303.5 306.0 295.1 343.1 13.33 5 850 1545 17.0 16.3 96 0.7 16.5 95 13 304.0 306.5 295.6 345.1 13.85 6 840 1646 16.2 16.2 100 0.0 16.2 96 14 304.1 306.7 295.6 345.6 13.93 7 740 2716 9.8 9.8 100 0.0 9.8 100 17 308.4 310.3 294.3 339.8 10.34 8 731 2818 11.2 7.2 76 4.0 8.8 100 17 311.0 312.7 293.8 337.9 8.75 9 700 3180 8.6 5.9 83 2.7 7.0 110 16 312.0 313.6 293.8 337.8 8.35 10 685 3359 7.8 5.0 82 2.8 6.1 119 15 313.1 314.6 293.8 338.0 8.01 11 655 3729 7.0 1.0 66 6.0 3.7 133 13 316.2 317.4 293.3 336.1 6.29 12 653 3754 7.2 -0.8 57 8.0 2.9 132 13 316.7 317.8 292.9 334.3 5.53 13 615 4246 3.8 -4.2 56 8.0 -0.2 113 11 318.3 319.1 292.5 333.0 4.56 14 612 4286 3.4 -1.4 71 4.8 0.8 112 10 318.2 319.3 293.4 336.3 5.65 15 588 4610 2.0 -10.0 41 12.0 -3.3 99 9 320.3 320.9 291.8 330.3 3.04 16 568 4889 -0.3 -8.3 55 8.0 -3.9 76 10 320.8 321.5 292.4 332.6 3.60 17 559 5017 -1.5 -4.3 81 2.8 -2.9 75 10 320.8 321.8 293.6 337.0 4.98 18 557 5046 -1.5 -2.7 92 1.2 -2.1 75 10 321.1 322.2 294.1 339.4 5.64 19 500 5900 -6.5 -10.6 73 4.1 -8.2 355 3 325.1 325.8 293.4 336.5 3.41 20 483 6169 -8.3 -12.6 71 4.3 -10.1 326 3 326.1 326.7 293.4 336.3 3.01 21 472 6347 -8.3 -18.3 44 10.0 -11.8 315 4 328.3 328.7 293.0 334.9 1.92 22 449 6732 -11.1 -18.1 56 7.0 -13.5 291 5 329.5 329.9 293.4 336.6 2.05 23 423 7187 -13.7 -20.7 55 7.0 -15.9 262 7 331.8 332.2 293.8 338.0 1.74 24 417 7296 -13.9 -26.9 32 13.0 -17.3 255 8 332.9 333.1 293.5 336.6 1.01 25 400 7610 -16.5 -32.5 24 16.0 -20.0 235 9 333.5 333.7 293.3 335.9 0.62 26 394 7723 -17.3 -33.3 23 16.0 -20.7 223 9 333.9 334.1 293.3 336.1 0.59 27 385 7896 -17.3 -43.3 8 26.0 -21.4 220 10 336.2 336.2 293.6 337.0 0.22 28 365 8293 -18.9 -47.9 6 29.0 -22.9 212 11 339.2 339.2 294.3 339.7 0.14 29 328 9078 -24.1 -42.1 17 18.0 -26.8 197 13 342.6 342.6 295.2 343.7 0.29 30 300 9720 -29.3 -51.3 10 22.0 -31.4 230 8 344.1 344.1 295.4 344.6 0.11 31 268 10519 -36.1 -55.1 12 19.0 -37.4 230 16 345.5 345.5 295.7 345.8 0.08 32 258 10783 -38.3 -48.3 34 10.0 -39.1 233 16 346.0 346.0 295.9 346.8 0.19 33 257 10810 -38.7 -49.7 30 11.0 -39.5 234 15 345.8 345.8 295.8 346.4 0.16 34 255 10864 -38.9 -54.9 17 16.0 -39.9 236 15 346.3 346.3 295.9 346.6 0.09 35 250 11000 -39.9 -55.9 17 16.0 -40.8 240 13 346.7 346.8 296.0 347.1 0.08 36 233 11476 -44.1 -54.1 32 10.0 -44.6 240 15 347.4 347.5 296.1 347.9 0.10 37 200 12480 -52.1 -69.1 11 17.0 -52.4 230 21 350.3 350.3 296.7 350.3 0.02 38 188 12877 -55.7 -67.7 21 12.0 -55.9 221 22 350.7 350.7 296.8 350.8 0.02 39 184 13013 -56.5 -75.5 7 19.0 -56.8 217 22 351.6 351.6 297.0 351.6 0.01 40 165 13695 -61.7 -72.7 22 11.0 -61.8 201 24 354.0 354.0 297.5 354.1 0.01 41 159 13924 -63.1 -82.1 6 19.0 -63.2 184 23 355.4 355.4 297.8 355.4 0.00 42 150 14280 -65.1 -82.1 8 17.0 -65.2 155 21 357.9 357.9 298.3 357.9 0.00 43 102 16520 -83.7 -87.4 52 3.7 -83.7 138 12 363.9 363.9 299.5 364.0 0.00 44 100 16630 -84.3 -88.1 51 3.8 -84.3 125 10 364.9 364.9 299.6 364.9 0.00 45 97 16798 -85.3 -89.4 48 4.1 -85.3 110 11 366.1 366.1 299.8 366.1 0.00 46 85 17524 -86.5 -92.5 33 6.0 -86.5 108 14 377.8 377.8 301.9 377.8 0.00 47 74 18290 -83.1 -91.1 24 8.0 -83.1 105 18 400.2 400.2 305.2 400.2 0.00 48 70 18600 -83.5 -91.5 23 8.0 -83.5 80 22 405.7 405.7 306.0 405.8 0.00 49 69 18681 -80.5 -89.5 21 9.0 -80.5 80 22 413.9 413.9 307.0 413.9 0.00 50 64 19107 -79.5 -89.5 18 10.0 -79.6 80 22 425.1 425.1 308.3 425.1 0.00 51 57 19776 -73.5 -90.5 6 17.0 -73.6 80 22 453.0 453.0 311.1 453.0 0.00 52 57 19776 -73.5 -90.5 6 17.0 -73.6 80 22 453.0 453.0 311.1 453.0 0.00 53 52 20323 -66.5 -91.5 2 25.0 -66.7 104 23 481.3 481.3 313.5 481.4 0.00 54 50 20560 -67.5 -90.5 2 23.0 -67.7 115 23 484.4 484.4 313.8 484.4 0.00 55 46 21060 -69.3 -90.3 3 21.0 -69.5 105 17 491.8 491.8 314.4 491.8 0.00 56 34 22894 -63.1 -90.1 1 27.0 -63.7 82 40 552.5 552.5 318.2 552.5 0.00 57 31 23472 -56.1 -86.1 1 30.0 -57.5 103 40 586.2 586.2 320.0 586.2 0.01 58 30 23680 -57.1 -86.1 1 29.0 -58.3 110 40 589.0 589.0 320.1 589.0 0.01 59 29 23895 -56.9 -85.9 1 29.0 -58.2 112 40 595.3 595.3 320.4 595.3 0.01 TRP 97 16798 -85.3 -89.4 48 4.1 -85.3 110 11 366.1 366.1 299.8 366.1 0.00 WND Sounding variables and indices 1000-500 mb thick: 5758.00 m Freezing level: 570.61 mb = 4852.76 m = 15920.92 ft Wetbulb zero: 617.63 mb = 4210.90 m = 13815.12 ft Precipitable water: 1.95 inches Sfc-500 mean rel hum: 80.63 % Est. max temperature: 30.46 C = 86.83 F Sfc-Lift cond lev (LCL): 931.59 mb = 756.01 m = 2480.33 ft T: 18.33 C 700-500 lapse rate: 5.55 C/km ThetaE index: 7.75 C Layer 740.0- 685.0 mb Conv cond level (CCL): 829.84 mb = 1748.86 m = 5737.67 ft Mean mixing ratio: 13.53 g/kg Conv temperature: 30.97 C = 87.75 F Cap Strength: 3.37 C Lifted Index: 1.57 C Risk: Showers probable Lifted Index @300 mb: 6.66 C Lifted Index @700 mb: 1.90 C Showalter Index: -1.77 C Risk: Thunderstorms probable Total Totals Index: 46.30 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.50 C Cross Totals Index: 22.80 C K Index: 37.10 Risk: > 80 % chance of thunderstorms Sweat Index: 224.60 Risk: None Energy Index: -1.74 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 11.20 J/kg Max Up Vert Vel: 4.73 m/s Conv Inhibition (B-): 17382.18 J/kg Cap Strength: 3.20 C Lift Cond Lev (LCL): 916.36 mb = 898.70 m = 2948.46 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 128 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 ---------------------------------------------------------- 0 995 181 90 2 -2.0 0.0 | 317 8 5.1 -5.5 1 947 610 80 13 -12.8 -2.3 | 36 10 -5.7 -7.8 2 925 818 90 17 -17.0 0.0 | 61 11 -9.9 -5.5 3 915 914 90 17 -17.0 0.0 | 61 11 -9.9 -5.5 4 852 1524 95 13 -13.0 1.1 | 53 7 -5.9 -4.4 5 850 1545 95 13 -13.0 1.1 | 53 7 -5.9 -4.4 6 793 2134 100 16 -15.8 2.8 | 72 9 -8.7 -2.7 7 711 3048 100 18 -17.7 3.1 | 77 11 -10.6 -2.4 8 700 3180 110 16 -15.0 5.5 | 90 8 -7.9 -0.0 9 660 3658 135 13 -9.2 9.2 | 150 4 -2.1 3.7 10 589 4572 100 9 -8.9 1.6 | 24 4 -1.8 -4.0 11 567 4877 75 10 -9.7 -2.6 | 18 9 -2.6 -8.1 12 526 5486 75 8 -7.7 -2.1 | 5 8 -0.6 -7.6 13 500 5900 355 3 0.3 -3.0 | 319 11 7.3 -8.5 14 487 6096 330 3 1.5 -2.6 | 313 12 8.6 -8.1 15 400 7610 235 9 7.4 5.2 | 271 14 14.5 -0.4 16 399 7620 225 9 6.4 6.4 | 266 13 13.5 0.9 17 325 9144 195 13 3.4 12.6 | 236 13 10.5 7.0 18 300 9720 230 8 6.1 5.1 | 272 13 13.2 -0.4 19 262 10668 230 17 13.0 10.9 | 255 21 20.1 5.4 20 250 11000 240 13 11.3 6.5 | 267 18 18.3 1.0 21 209 12192 240 19 16.5 9.5 | 260 24 23.5 4.0 22 200 12480 230 21 16.1 13.5 | 251 25 23.2 8.0 23 164 13716 200 24 8.2 22.6 | 222 23 15.3 17.0 24 150 14280 155 21 -8.9 19.0 | 172 14 -1.8 13.5 25 127 15240 145 15 -8.6 12.3 | 167 7 -1.5 6.8 26 103 16459 145 13 -7.5 10.6 | 176 5 -0.4 5.1 27 100 16630 125 10 -8.2 5.7 | 101 1 -1.1 0.2 28 97 16798 110 11 -10.3 3.8 | 62 4 -3.2 -1.8 29 74 18288 105 18 -17.4 4.7 | 85 10 -10.3 -0.9 30 70 18600 80 22 -21.7 -3.8 | 57 17 -14.6 -9.3 31 57 19812 80 22 -21.7 -3.8 | 57 17 -14.6 -9.3 32 50 20560 115 23 -20.8 9.7 | 107 14 -13.8 4.2 33 44 21336 100 14 -13.8 2.4 | 65 7 -6.7 -3.1 34 34 22860 80 40 -39.4 -6.9 | 69 35 -32.3 -12.5 35 30 23680 110 40 -37.6 13.7 | 105 32 -30.5 8.2 36 27 24079 115 40 -36.3 16.9 | 111 31 -29.2 11.4 Wind Parameters Mean winds (0-6000m): 97.9 at 12.0 knts Storm direction: 127.9 at 9.0 knts Shear (0-3000m) pos: 1.2 neg: 2.3 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 132.5 deg Storm rel helicity (0-3000m) pos: 41.9 neg: -2.6 tot: 39.4 m^2/s^2 ave: 13.1 10^-3 m/s^2 rel: 0.65 Storm rel vorticity (0-3000m) horiz: 4.9 stream: 3.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 4.01 Bulk Shear: 2.80 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 81 8 10 7| 0.0 12.7 12.7| 20.8 0.0 20.8 41.5 0.87| 13.0 11.3 1000 87 12 40 8| 1.2 6.4 7.6| 29.1 -1.0 28.1 28.1 0.77| 9.1 7.0 1500 90 13 46 8| 1.1 4.2 5.3| 30.2 -2.6 27.6 18.4 0.65| 7.0 4.6 2000 92 13 51 8| 1.2 3.2 4.4| 34.9 -2.6 32.3 16.2 0.67| 5.9 4.0 2500 94 14 57 8| 1.0 2.8 3.7| 36.1 -2.6 33.5 13.4 0.66| 5.0 3.3 3000 95 15 61 9| 1.2 2.3 3.5| 41.9 -2.6 39.4 13.1 0.65| 4.9 3.1 4000 102 14 69 7| 1.6 1.9 3.5| 50.5 -5.9 44.6 11.2 0.50| 5.1 2.6 5000 101 13 63 7| 1.2 1.9 3.1| 50.5 -11.6 38.9 7.8 0.32| 4.9 1.6 6000 98 12 51 6| 1.0 1.1 2.2| 50.5 -39.3 11.2 1.9 0.09| 5.1 0.4 Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20251205.00.gif