UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120400.upa.cvt Date: 0000Z 4 DEC 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 4 DEC 25 Station: VTBC WMO ident: 48480 Latitude: 12.60 Longitude: 102.12 Elevation: 4.00 ------------------------------------------------------------------------------- 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 4 25.2 20.2 74 5.0 21.7 60 9 297.4 300.1 294.4 340.5 14.90 1 1000 101 24.6 18.6 69 6.0 20.5 40 15 297.8 300.2 293.6 337.2 13.61 2 947 576 20.8 17.3 80 3.5 18.4 36 17 298.6 301.0 293.6 337.1 13.23 3 928 753 22.8 15.8 65 7.0 18.1 31 15 302.3 304.6 294.0 338.6 12.25 4 925 781 22.8 15.8 65 7.0 18.1 30 15 302.6 304.9 294.1 339.0 12.29 5 850 1514 19.4 11.4 60 8.0 14.3 45 11 306.5 308.3 293.5 336.6 10.01 6 841 1606 19.0 9.0 52 10.0 12.8 45 11 307.0 308.6 292.5 333.0 8.60 7 809 1939 17.8 11.8 68 6.0 13.8 67 12 309.1 311.2 294.8 342.0 10.81 8 700 3160 9.2 8.2 93 1.0 8.6 85 8 312.7 314.5 295.0 343.0 9.80 9 693 3243 8.6 8.1 97 0.5 8.3 83 8 312.9 314.8 295.1 343.3 9.84 10 615 4226 4.8 0.8 75 4.0 2.5 84 8 319.4 320.7 294.4 340.6 6.61 11 612 4266 5.0 0.0 70 5.0 2.2 85 8 320.1 321.3 294.4 340.2 6.27 12 552 5099 -2.5 -2.5 100 0.0 -2.5 80 7 320.8 321.9 294.2 339.4 5.78 13 528 5451 -4.7 -4.8 99 0.1 -4.8 80 6 322.2 323.2 294.0 338.8 5.08 14 524 5511 -4.9 -6.2 91 1.3 -5.5 81 6 322.7 323.6 293.8 337.8 4.60 15 513 5678 -4.7 -11.7 58 7.0 -7.7 92 8 324.9 325.5 293.1 335.1 3.04 16 500 5880 -6.1 -10.3 72 4.2 -7.9 105 10 325.6 326.3 293.6 337.3 3.49 17 498 5911 -6.1 -8.1 86 2.0 -7.0 104 10 326.0 326.8 294.3 339.9 4.17 18 496 5943 -5.7 -15.7 45 10.0 -9.5 104 10 326.8 327.3 293.0 334.6 2.27 19 493 5991 -5.9 -11.9 63 6.0 -8.4 102 11 327.2 327.8 293.7 337.7 3.12 20 489 6055 -5.9 -17.9 38 12.0 -10.2 101 11 327.9 328.3 292.9 334.6 1.91 21 485 6119 -5.9 -10.6 69 4.7 -7.9 101 11 328.7 329.4 294.4 340.6 3.52 22 475 6282 -6.9 -9.3 83 2.4 -8.0 108 10 329.4 330.2 295.0 342.9 3.98 23 469 6382 -7.1 -11.2 72 4.1 -8.9 113 10 330.4 331.1 294.8 342.2 3.47 24 465 6449 -6.9 -19.9 35 13.0 -11.4 116 10 331.4 331.8 293.7 337.4 1.70 25 457 6584 -7.7 -15.7 53 8.0 -10.8 122 9 332.1 332.6 294.5 340.7 2.46 26 448 6739 -8.1 -24.1 26 16.0 -13.0 129 9 333.5 333.7 293.8 337.9 1.22 27 421 7219 -11.7 -20.7 47 9.0 -14.7 152 7 334.8 335.2 294.6 341.1 1.75 28 414 7348 -12.3 -29.3 23 17.0 -16.7 158 7 335.7 335.8 294.0 338.7 0.82 29 400 7610 -14.9 -20.9 60 6.0 -16.8 170 6 335.6 336.0 294.8 342.1 1.81 30 397 7667 -15.5 -20.3 67 4.8 -17.0 170 5 335.6 336.0 294.9 342.4 1.92 31 381 7975 -16.5 -39.5 12 23.0 -20.7 173 5 338.2 338.3 294.2 339.5 0.33 32 358 8439 -19.3 -43.3 10 24.0 -23.1 178 6 340.5 340.6 294.7 341.5 0.23 33 317 9326 -27.1 -46.1 15 19.0 -29.4 173 6 341.8 341.8 294.9 342.5 0.19 34 300 9720 -29.7 -48.7 14 19.0 -31.7 145 5 343.5 343.6 295.3 344.1 0.15 35 261 10695 -38.5 -51.5 24 13.0 -39.4 141 4 344.6 344.6 295.6 345.1 0.13 36 255 10855 -39.7 -46.7 47 7.0 -40.3 146 6 345.1 345.1 295.7 346.0 0.22 37 251 10963 -40.5 -48.5 42 8.0 -41.1 149 8 345.5 345.5 295.8 346.2 0.19 38 250 10990 -40.7 -50.7 33 10.0 -41.4 150 8 345.6 345.6 295.8 346.2 0.15 39 247 11072 -41.3 -66.3 5 25.0 -42.2 150 8 345.9 345.9 295.7 345.9 0.02 40 233 11466 -44.7 -57.7 22 13.0 -45.3 152 9 346.5 346.5 295.9 346.8 0.07 41 225 11699 -46.7 -50.3 67 3.6 -46.9 153 10 346.9 347.0 296.1 347.6 0.17 42 213 12060 -49.7 -53.1 67 3.4 -49.8 154 11 347.7 347.8 296.3 348.3 0.13 43 212 12091 -49.7 -53.2 67 3.5 -49.8 155 11 348.2 348.2 296.4 348.8 0.13 44 206 12278 -51.3 -55.5 61 4.2 -51.5 156 12 348.6 348.6 296.4 349.0 0.10 45 200 12470 -52.1 -70.1 10 18.0 -52.5 160 14 350.3 350.3 296.7 350.3 0.02 46 152 14190 -65.9 -78.9 15 13.0 -66.0 146 18 355.2 355.2 297.7 355.2 0.01 47 150 14270 -66.3 -77.3 20 11.0 -66.4 145 17 355.9 355.9 297.9 355.9 0.01 48 138 14769 -71.1 -75.3 54 4.2 -71.1 140 14 356.0 356.0 297.9 356.0 0.01 49 135 14899 -71.7 -76.7 47 5.0 -71.7 139 13 357.2 357.2 298.1 357.2 0.01 50 108 16188 -79.7 -87.7 25 8.0 -79.7 162 5 365.6 365.6 299.8 365.6 0.00 51 100 16620 -82.9 -88.9 35 6.0 -82.9 340 4 367.6 367.6 300.1 367.6 0.00 52 84 17577 -87.9 -92.9 39 5.0 -87.9 85 13 376.2 376.2 301.6 376.2 0.00 53 71 18501 -82.7 -90.7 24 8.0 -82.7 111 21 405.8 405.8 306.0 405.8 0.00 54 70 18580 -81.3 -90.3 20 9.0 -81.3 110 21 410.5 410.5 306.6 410.5 0.00 55 62 19278 -71.7 -89.7 5 18.0 -71.8 55 16 446.2 446.2 310.5 446.2 0.00 56 55 19978 -74.9 -89.9 8 15.0 -75.0 29 14 454.4 454.4 311.3 454.4 0.00 57 50 20540 -68.1 -91.1 2 23.0 -68.3 75 22 483.0 483.0 313.7 483.0 0.00 58 46 21047 -62.7 -89.7 1 27.0 -63.1 85 25 507.7 507.7 315.5 507.7 0.00 59 34 22922 -60.1 -89.1 1 29.0 -60.9 85 36 560.4 560.4 318.6 560.4 0.00 60 31 23496 -62.1 -89.1 2 27.0 -62.8 81 39 570.0 570.0 319.2 570.0 0.00 TRP 84 17577 -87.9 -92.9 39 5.0 -87.9 85 13 376.2 376.2 301.6 376.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5779.00 m Freezing level: 572.00 mb = 4821.08 m = 15816.99 ft Wetbulb zero: 583.60 mb = 4649.44 m = 15253.87 ft Precipitable water: 2.01 inches Sfc-500 mean rel hum: 78.32 % Est. max temperature: 33.69 C = 92.65 F Sfc-Lift cond lev (LCL): 939.99 mb = 641.05 m = 2103.15 ft T: 21.53 C 700-500 lapse rate: 5.62 C/km ThetaE index: 5.98 C Layer 850.0- 809.0 mb Conv cond level (CCL): 754.71 mb = 2524.92 m = 8283.76 ft Mean mixing ratio: 13.14 g/kg Conv temperature: 38.68 C = 101.63 F Cap Strength: 5.12 C Lifted Index: 1.61 C Risk: Showers probable Lifted Index @300 mb: 5.73 C Lifted Index @700 mb: 2.21 C Showalter Index: 2.08 C Risk: Showers probable Total Totals Index: 43.00 C Risk: None Vertical Totals Index: 25.50 C Cross Totals Index: 17.50 C K Index: 35.90 Risk: > 80 % chance of thunderstorms Sweat Index: 168.80 Risk: None Energy Index: 0.16 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 24.96 J/kg Max Up Vert Vel: 7.07 m/s Conv Inhibition (B-): 16865.96 J/kg Cap Strength: 5.10 C Lift Cond Lev (LCL): 887.82 mb = 1136.66 m = 3729.16 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 96 at 8 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 4 60 9 -7.8 -4.5 | 1 5 -0.1 -5.3 1 1000 101 40 15 -9.6 -11.5 | 9 12 -2.0 -12.3 2 977 305 40 17 -10.9 -13.0 | 13 14 -3.3 -13.8 3 943 610 35 17 -9.8 -13.9 | 8 15 -2.1 -14.7 4 925 781 30 15 -7.5 -13.0 | 359 14 0.2 -13.8 5 911 914 30 14 -7.0 -12.1 | 357 13 0.7 -12.9 6 850 1514 45 11 -7.8 -7.8 | 1 9 -0.1 -8.6 7 849 1524 40 11 -7.1 -8.4 | 356 9 0.6 -9.2 8 790 2134 80 13 -12.8 -2.3 | 59 6 -5.1 -3.1 9 709 3048 90 8 -8.0 0.0 | 23 1 -0.3 -0.8 10 700 3160 85 8 -8.0 -0.7 | 12 2 -0.3 -1.5 11 658 3658 75 8 -7.7 -2.1 | 1 3 -0.1 -2.9 12 588 4572 90 8 -8.0 0.0 | 23 1 -0.3 -0.8 13 566 4877 80 8 -7.9 -1.4 | 6 2 -0.2 -2.2 14 525 5486 80 6 -5.9 -1.0 | 316 3 1.8 -1.8 15 500 5880 105 10 -9.7 2.6 | 132 3 -2.0 1.8 16 486 6096 100 11 -10.8 1.9 | 109 3 -3.2 1.1 17 400 7610 170 6 -1.0 5.9 | 232 8 6.6 5.1 18 399 7620 170 5 -0.9 4.9 | 239 8 6.8 4.1 19 325 9144 185 7 0.6 7.0 | 233 10 8.3 6.2 20 300 9720 145 5 -2.9 4.1 | 235 6 4.8 3.3 21 262 10668 140 4 -2.6 3.1 | 246 6 5.1 2.3 22 250 10990 150 8 -4.0 6.9 | 211 7 3.7 6.1 23 209 12192 155 11 -4.6 10.0 | 198 10 3.0 9.2 24 200 12470 160 14 -4.8 13.2 | 193 13 2.9 12.4 25 164 13716 150 21 -10.5 18.2 | 171 18 -2.8 17.4 26 150 14270 145 17 -9.8 13.9 | 171 13 -2.1 13.1 27 127 15240 135 10 -7.1 7.1 | 185 6 0.6 6.3 28 103 16459 170 3 -0.5 3.0 | 253 7 7.1 2.2 29 100 16620 340 4 1.4 -3.8 | 297 10 9.0 -4.6 30 84 17577 85 13 -13.0 -1.1 | 70 6 -5.3 -1.9 31 74 18288 115 22 -19.9 9.3 | 125 15 -12.3 8.5 32 70 18580 110 21 -19.7 7.2 | 118 14 -12.1 6.4 33 57 19812 15 12 -3.1 -11.6 | 340 13 4.6 -12.4 34 50 20540 75 22 -21.3 -5.7 | 64 15 -13.6 -6.5 35 42 21336 95 29 -28.9 2.5 | 95 21 -21.2 1.7 36 30 22860 80 40 -39.4 -6.9 | 76 33 -31.7 -7.7 37 25 23774 100 26 -25.6 4.5 | 102 18 -17.9 3.7 Wind Parameters Mean winds (0-6000m): 65.9 at 10.3 knts Storm direction: 95.9 at 7.7 knts Shear (0-3000m) pos: 2.0 neg: 1.2 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 32.3 deg Storm rel helicity (0-3000m) pos: 21.4 neg: -15.5 tot: 5.9 m^2/s^2 ave: 2.0 10^-3 m/s^2 rel: 0.17 Storm rel vorticity (0-3000m) horiz: 5.3 stream: 0.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 3.14 Bulk Shear: 7.96 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 40 16 11 13| 0.0 9.7 9.7| 5.7 -3.3 2.4 4.8 0.13| 10.5 1.3 1000 36 16 7 13| 0.0 3.6 3.6| 6.2 -15.0 -8.8 -8.8 -0.11| 7.6 -0.9 1500 37 14 5 12| 1.3 2.4 3.6| 7.8 -15.0 -7.3 -4.8 -0.06| 6.3 -0.4 2000 41 14 7 11| 2.3 1.8 4.1| 18.3 -15.0 3.3 1.6 0.17| 6.3 1.1 2500 48 13 13 10| 2.3 1.4 3.7| 21.4 -15.1 6.3 2.5 0.21| 5.8 1.3 3000 53 13 16 9| 2.0 1.2 3.2| 21.4 -15.5 5.9 2.0 0.17| 5.3 0.9 4000 58 12 17 7| 1.5 1.1 2.6| 21.5 -15.8 5.7 1.4 0.14| 4.4 0.6 5000 62 11 18 6| 1.3 1.0 2.3| 21.7 -16.2 5.5 1.1 0.12| 3.8 0.4 6000 66 10 19 5| 1.5 0.8 2.3| 22.5 -17.4 5.1 0.8 0.13| 3.8 0.5 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251204.00.gif