UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101200.upa.cvt Date: 0000Z 12 OCT 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 12 OCT 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 1009 4 25.0 23.3 90 1.7 23.8 0 0 297.4 300.7 296.6 350.0 18.13 1 1000 80 25.2 23.3 89 1.9 23.8 2 0 298.4 301.7 297.0 351.6 18.30 2 995 124 25.6 23.2 87 2.4 23.9 3 0 299.2 302.5 297.2 352.6 18.28 3 925 766 22.6 20.5 88 2.1 21.1 19 1 302.4 305.5 297.0 351.6 16.63 4 850 1499 18.2 15.7 85 2.5 16.5 38 2 305.2 307.7 295.5 345.0 13.32 5 747 2597 11.8 11.4 97 0.4 11.6 82 4 309.7 311.9 295.4 344.5 11.42 6 700 3141 9.8 8.1 89 1.7 8.8 110 6 313.3 315.2 295.1 343.5 9.74 7 622 4117 4.6 2.2 84 2.4 3.2 88 5 318.1 319.6 294.6 341.1 7.23 8 587 4589 2.4 0.8 89 1.6 1.5 70 4 320.9 322.3 295.1 343.2 6.93 9 562 4940 -0.5 -0.5 100 0.0 -0.5 108 4 321.5 322.8 295.0 342.7 6.58 10 522 5529 -4.1 -4.1 100 0.0 -4.1 151 7 324.0 325.1 294.7 341.8 5.42 11 519 5574 -2.9 -4.8 87 1.9 -3.8 153 7 326.0 327.0 295.1 343.1 5.17 12 500 5870 -4.7 -6.2 89 1.5 -5.4 165 7 327.3 328.3 295.1 343.4 4.82 13 439 6880 -10.3 -13.5 77 3.2 -11.6 106 5 332.6 333.3 295.1 343.3 3.08 14 432 7004 -10.1 -17.1 57 7.0 -12.7 99 5 334.4 334.9 295.0 342.6 2.32 15 405 7496 -14.1 -17.9 73 3.8 -15.4 70 4 335.5 335.9 295.2 343.6 2.31 16 400 7590 -14.3 -21.3 55 7.0 -16.5 65 4 336.4 336.8 295.0 342.7 1.75 17 377 8037 -16.3 -27.3 38 11.0 -19.2 100 5 339.5 339.7 295.1 343.5 1.08 18 343 8740 -22.3 -30.3 48 8.0 -24.1 125 5 340.7 340.8 295.3 344.0 0.90 19 333 8957 -23.9 -29.9 58 6.0 -25.2 133 5 341.4 341.6 295.5 345.0 0.96 20 327 9089 -24.9 -34.9 39 10.0 -26.7 138 5 341.8 341.9 295.3 344.1 0.60 21 324 9156 -25.7 -28.9 74 3.2 -26.4 140 5 341.6 341.8 295.7 345.6 1.08 22 322 9201 -25.9 -32.9 52 7.0 -27.2 141 5 341.9 342.0 295.4 344.7 0.74 23 320 9246 -26.1 -27.8 86 1.7 -26.5 142 5 342.2 342.5 295.9 346.8 1.22 24 318 9292 -26.3 -34.3 47 8.0 -27.8 142 6 342.6 342.7 295.6 345.1 0.66 25 300 9710 -29.7 -35.7 56 6.0 -30.7 150 8 343.5 343.6 295.7 345.9 0.61 26 287 10023 -32.7 -36.9 66 4.2 -33.3 142 7 343.6 343.7 295.7 345.8 0.56 27 279 10222 -34.1 -38.5 64 4.4 -34.7 137 7 344.4 344.5 295.8 346.3 0.49 28 275 10322 -34.7 -44.7 36 10.0 -35.7 134 7 344.9 345.0 295.7 346.0 0.26 29 265 10580 -36.9 -44.9 43 8.0 -37.7 127 6 345.4 345.5 295.8 346.5 0.26 30 263 10632 -37.3 -40.8 70 3.5 -37.7 126 6 345.6 345.7 296.0 347.2 0.41 31 251 10953 -39.3 -48.3 38 9.0 -40.0 102 4 347.2 347.3 296.2 348.0 0.19 32 250 10980 -39.7 -46.7 47 7.0 -40.3 100 4 347.0 347.1 296.2 348.0 0.23 33 206 12269 -51.5 -55.8 60 4.3 -51.7 102 18 348.3 348.3 296.3 348.7 0.10 34 201 12428 -52.5 -53.3 91 0.8 -52.5 96 21 349.1 349.2 296.5 349.7 0.13 35 200 12460 -52.7 -53.6 90 0.9 -52.7 95 22 349.3 349.3 296.6 349.9 0.13 36 189 12825 -55.7 -62.7 41 7.0 -55.9 92 25 350.2 350.2 296.7 350.4 0.04 37 177 13241 -59.5 -67.5 35 8.0 -59.6 89 29 350.6 350.6 296.8 350.7 0.02 38 169 13530 -61.7 -65.1 64 3.4 -61.7 87 31 351.6 351.6 297.0 351.7 0.04 39 154 14101 -66.9 -74.9 31 8.0 -67.0 88 34 352.2 352.2 297.1 352.2 0.01 40 150 14260 -68.3 -74.3 42 6.0 -68.4 90 34 352.4 352.4 297.2 352.5 0.01 41 140 14669 -71.9 -76.6 49 4.7 -71.9 100 32 353.1 353.1 297.3 353.2 0.01 42 121 15514 -77.5 -82.3 46 4.8 -77.5 106 27 357.9 357.9 298.3 358.0 0.00 43 109 16109 -79.1 -83.8 46 4.7 -79.1 85 21 365.8 365.8 299.8 365.8 0.00 44 100 16600 -76.9 -82.9 38 6.0 -76.9 95 36 379.1 379.1 302.1 379.2 0.00 45 93 17014 -79.1 -85.1 37 6.0 -79.1 79 31 382.8 382.8 302.7 382.8 0.00 46 80 17882 -73.3 -86.3 12 13.0 -73.3 45 21 411.5 411.5 306.7 411.6 0.00 47 70 18660 -74.7 -87.7 12 13.0 -74.7 80 26 424.6 424.6 308.2 424.6 0.00 48 64 19178 -76.5 -88.5 13 12.0 -76.6 105 25 431.6 431.6 309.0 431.7 0.00 49 56 19948 -75.9 -89.9 9 14.0 -76.0 124 25 449.8 449.8 310.8 449.8 0.00 50 50 20610 -70.9 -90.9 4 20.0 -71.1 75 28 476.4 476.4 313.2 476.4 0.00 51 44 21378 -64.3 -90.3 2 26.0 -64.7 85 34 510.3 510.3 315.7 510.3 0.00 52 36 22610 -62.3 -89.3 2 27.0 -62.9 81 44 545.6 545.6 317.8 545.6 0.00 53 30 23750 -56.5 -87.5 1 31.0 -57.9 85 54 590.6 590.6 320.2 590.6 0.01 54 28 24189 -55.7 -85.7 1 30.0 -57.3 85 54 604.6 604.6 320.8 604.7 0.01 TRP 109 16109 -79.1 -83.8 46 4.7 -79.1 85 21 365.8 365.8 299.8 365.8 0.00 WND Sounding variables and indices 1000-500 mb thick: 5790.00 m Freezing level: 566.31 mb = 4879.38 m = 16008.28 ft Wetbulb zero: 568.37 mb = 4848.99 m = 15908.57 ft Precipitable water: 2.47 inches Sfc-500 mean rel hum: 90.29 % Est. max temperature: 32.50 C = 90.50 F Sfc-Lift cond lev (LCL): 984.75 mb = 215.42 m = 706.76 ft T: 25.17 C 700-500 lapse rate: 5.31 C/km ThetaE index: 11.45 C Layer 925.0- 587.0 mb Conv cond level (CCL): 889.55 mb = 1104.75 m = 3624.46 ft Mean mixing ratio: 17.36 g/kg Conv temperature: 31.35 C = 88.42 F Cap Strength: 1.46 C Lifted Index: -2.38 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.30 C Lifted Index @700 mb: -1.29 C Showalter Index: 0.08 C Risk: Thunderstorms probable Total Totals Index: 43.30 C Risk: None Vertical Totals Index: 22.90 C Cross Totals Index: 20.40 C K Index: 36.90 Risk: > 80 % chance of thunderstorms Sweat Index: 199.55 Risk: None Energy Index: -0.40 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 847.24 J/kg Max Up Vert Vel: 41.16 m/s Conv Inhibition (B-): 19.04 J/kg Cap Strength: 1.46 C Lift Cond Lev (LCL): 928.41 mb = 733.66 m = 2406.99 ft Lev Free Conv (LFC): 843.41 mb = 1565.18 m = 5135.06 ft Equ Level (EL): 163.41 mb = 13736.64 m = 45067.18 ft B at Equ Level: 845.88 J/kg Max Parcel Lev (MPL): 93.41 mb = 16989.32 m = 55738.57 ft Wind level data Storm motion: 135 at 3 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 1009 4 0 0 -0.0 -0.0 | 315 3 2.1 -2.1 1 787 2134 55 3 -2.5 -1.7 | 6 4 -0.4 -3.8 2 708 3048 110 5 -4.7 1.7 | 82 3 -2.6 -0.4 3 700 3141 110 6 -5.6 2.1 | 89 4 -3.6 -0.0 4 657 3658 105 6 -5.8 1.6 | 82 4 -3.7 -0.5 5 587 4572 70 4 -3.8 -1.4 | 26 4 -1.7 -3.5 6 565 4877 105 4 -3.9 1.0 | 60 2 -1.8 -1.1 7 524 5486 150 7 -3.5 6.1 | 160 4 -1.4 4.0 8 500 5870 165 7 -1.8 6.8 | 183 5 0.3 4.7 9 486 6096 150 7 -3.5 6.1 | 160 4 -1.4 4.0 10 400 7590 65 4 -3.6 -1.7 | 22 4 -1.6 -3.8 11 398 7620 85 5 -5.0 -0.4 | 49 4 -2.9 -2.5 12 324 9144 140 5 -3.2 3.8 | 147 2 -1.1 1.7 13 300 9710 150 8 -4.0 6.9 | 158 5 -1.9 4.8 14 261 10668 125 6 -4.9 3.4 | 115 3 -2.8 1.4 15 250 10980 100 4 -3.9 0.7 | 53 2 -1.9 -1.4 16 208 12192 105 17 -16.4 4.4 | 99 15 -14.4 2.3 17 200 12460 95 22 -21.9 1.9 | 90 20 -19.8 -0.2 18 164 13716 85 33 -32.9 -2.9 | 81 31 -30.8 -5.0 19 150 14260 90 34 -34.0 0.0 | 86 32 -31.9 -2.1 20 127 15240 115 30 -27.2 12.7 | 113 27 -25.1 10.6 21 109 16109 85 21 -20.9 -1.8 | 78 19 -18.9 -3.9 22 103 16459 90 24 -24.0 0.0 | 85 22 -21.9 -2.1 23 100 16600 95 36 -35.9 3.1 | 92 34 -33.8 1.0 24 75 18288 30 17 -8.5 -14.7 | 21 18 -6.4 -16.8 25 70 18660 80 26 -25.6 -4.5 | 74 24 -23.5 -6.6 26 57 19812 135 24 -17.0 17.0 | 135 21 -14.9 14.9 27 50 20610 75 28 -27.0 -7.2 | 70 27 -25.0 -9.3 28 44 21336 85 33 -32.9 -2.9 | 81 31 -30.8 -5.0 29 35 22860 80 46 -45.3 -8.0 | 77 44 -43.2 -10.1 30 30 23750 85 54 -53.8 -4.7 | 83 52 -51.7 -6.8 31 26 24384 85 53 -52.8 -4.6 | 82 51 -50.7 -6.7 32 24 24689 85 54 -53.8 -4.7 | 83 52 -51.7 -6.8 Wind Parameters Mean winds (0-6000m): 105.3 at 3.9 knts Storm direction: 135.3 at 2.9 knts Shear (0-3000m) pos: 0.8 neg: 0.0 tot: 0.8 10-3/s Storm rel Dir Shear (0-3000m): 121.3 deg Storm rel helicity (0-3000m) pos: 6.4 neg: 0.0 tot: 6.4 m^2/s^2 ave: 2.1 10^-3 m/s^2 rel: 0.95 Storm rel vorticity (0-3000m) horiz: 1.3 stream: 1.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 462.87 Bulk Shear: 1.83 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 ------------------------------------------------------------------------------- 500 113 0 317 3| 0.7 0.0 0.7| 0.5 0.0 0.5 0.9 0.79| 0.7 0.6 1000 87 1 325 3| 0.7 0.0 0.7| 1.1 0.0 1.1 1.1 0.86| 0.7 0.6 1500 63 1 335 3| 0.7 0.0 0.7| 1.9 0.0 1.9 1.3 0.90| 0.8 0.7 2000 55 1 342 3| 0.7 0.0 0.7| 2.8 0.0 2.8 1.4 0.93| 0.8 0.8 2500 58 2 350 3| 0.8 0.0 0.8| 4.5 0.0 4.5 1.8 0.94| 1.0 1.0 3000 71 2 0 3| 0.8 0.0 0.8| 6.4 0.0 6.4 2.1 0.95| 1.3 1.2 4000 88 3 26 2| 0.6 0.2 0.8| 6.9 -1.9 5.0 1.2 0.55| 1.4 0.7 5000 88 3 31 3| 0.7 0.3 1.0| 8.5 -3.8 4.7 0.9 0.40| 1.6 0.7 6000 105 4 58 2| 0.8 0.2 1.1| 13.2 -4.8 8.5 1.4 0.48| 1.9 0.9 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251012.00.gif