UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101700.upa.cvt Date: 0000Z 17 OCT 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 17 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 1007 4 26.0 24.0 89 2.0 24.6 40 2 298.6 302.0 297.5 353.9 18.98 1 1000 67 25.8 23.0 85 2.8 23.8 45 10 299.0 302.2 296.9 351.4 17.96 2 957 455 25.0 21.2 79 3.8 22.3 60 11 301.9 305.0 297.0 351.5 16.79 3 925 754 23.2 19.9 82 3.3 20.9 75 13 303.0 306.0 296.7 350.5 16.01 4 884 1149 20.2 18.1 88 2.1 18.8 82 15 303.9 306.6 296.3 348.3 14.95 5 850 1488 18.8 15.9 83 2.9 16.8 85 14 305.8 308.4 295.8 346.3 13.49 6 805 1954 17.0 12.0 72 5.0 13.7 97 13 308.7 310.8 294.8 342.2 11.01 7 794 2072 17.6 8.6 56 9.0 12.0 99 12 310.6 312.3 293.8 337.8 8.87 8 700 3135 9.0 5.6 79 3.4 7.0 90 13 312.5 314.0 293.8 337.8 8.18 9 690 3254 8.6 4.7 76 3.9 6.3 91 13 313.3 314.8 293.7 337.5 7.79 10 683 3339 9.2 4.2 71 5.0 6.3 92 12 314.9 316.3 294.0 338.7 7.59 11 557 5001 -0.9 -2.4 90 1.5 -1.7 99 11 321.8 323.0 294.4 340.6 5.77 12 510 5703 -3.1 -11.1 54 8.0 -6.6 95 14 327.4 328.0 293.9 338.3 3.21 13 505 5781 -3.5 -12.5 50 9.0 -7.3 95 14 327.8 328.4 293.7 337.7 2.90 14 500 5860 -4.3 -11.3 58 7.0 -7.3 95 14 327.8 328.4 294.0 338.7 3.23 15 471 6330 -7.7 -10.2 82 2.5 -8.8 97 14 329.2 330.0 294.8 341.9 3.74 16 441 6841 -9.9 -15.9 61 6.0 -12.2 100 13 332.7 333.2 294.7 341.5 2.51 17 430 7037 -10.7 -14.7 72 4.0 -12.3 101 12 334.1 334.7 295.3 344.0 2.85 18 409 7421 -13.9 -15.6 87 1.7 -14.5 104 11 334.8 335.4 295.4 344.5 2.78 19 400 7590 -14.7 -17.5 79 2.8 -15.7 105 11 335.9 336.4 295.4 344.4 2.42 20 369 8196 -18.7 -24.7 59 6.0 -20.4 99 10 338.4 338.7 295.1 343.5 1.40 21 365 8277 -19.3 -21.7 81 2.4 -20.0 99 9 338.7 339.0 295.6 345.3 1.85 22 350 8589 -20.5 -32.5 33 12.0 -23.1 96 8 341.1 341.3 295.3 343.8 0.71 23 300 9710 -29.3 -35.3 56 6.0 -30.3 95 5 344.1 344.2 295.8 346.5 0.63 24 288 9999 -31.7 -36.0 66 4.3 -32.4 95 6 344.7 344.8 296.0 347.1 0.61 25 276 10298 -33.7 -44.7 32 11.0 -34.9 95 7 346.0 346.1 296.0 347.1 0.26 26 268 10502 -35.7 -42.7 49 7.0 -36.5 95 8 346.0 346.1 296.0 347.4 0.33 27 263 10633 -36.9 -47.9 31 11.0 -37.8 95 9 346.2 346.2 296.0 346.9 0.19 28 251 10953 -39.7 -46.7 47 7.0 -40.3 118 9 346.6 346.7 296.1 347.6 0.23 29 250 10980 -39.7 -46.7 47 7.0 -40.3 120 9 347.0 347.1 296.2 348.0 0.23 30 248 11035 -40.1 -43.2 72 3.1 -40.4 122 9 347.2 347.3 296.3 348.6 0.34 31 241 11230 -41.5 -47.5 52 6.0 -42.0 130 9 348.0 348.0 296.4 348.9 0.22 32 227 11634 -44.7 -47.8 71 3.1 -44.9 147 9 349.1 349.2 296.6 350.0 0.22 33 200 12470 -51.7 -56.0 60 4.3 -51.8 205 9 350.9 350.9 296.9 351.3 0.10 34 184 13002 -56.5 -60.1 64 3.6 -56.6 217 9 351.6 351.6 297.0 351.9 0.06 35 166 13644 -62.3 -70.3 33 8.0 -62.4 233 10 352.4 352.4 297.1 352.5 0.02 36 165 13681 -62.5 -70.5 33 8.0 -62.6 234 10 352.7 352.7 297.2 352.7 0.02 37 150 14260 -67.1 -71.6 53 4.5 -67.1 260 4 354.5 354.5 297.6 354.6 0.02 38 147 14381 -68.3 -72.5 55 4.2 -68.4 256 4 354.5 354.5 297.6 354.5 0.01 39 135 14887 -71.7 -79.7 29 8.0 -71.8 241 5 357.2 357.2 298.1 357.2 0.01 40 133 14974 -72.1 -81.1 25 9.0 -72.1 239 5 358.0 358.0 298.3 358.0 0.00 41 100 16610 -81.7 -88.7 29 7.0 -81.7 65 10 369.9 369.9 300.5 369.9 0.00 42 92 17075 -84.3 -88.5 47 4.2 -84.3 80 16 373.7 373.7 301.2 373.7 0.00 43 78 17996 -81.5 -88.5 29 7.0 -81.5 80 24 397.5 397.5 304.9 397.5 0.00 44 76 18144 -77.5 -86.5 22 9.0 -77.5 80 25 408.9 408.9 306.3 408.9 0.00 45 70 18620 -73.9 -87.9 10 14.0 -74.0 95 22 426.3 426.3 308.4 426.3 0.00 46 69 18704 -72.7 -87.7 9 15.0 -72.8 96 22 430.6 430.6 308.9 430.6 0.00 47 55 20055 -66.9 -90.9 2 24.0 -67.1 110 27 472.8 472.8 312.8 472.8 0.00 TRP 92 17075 -84.3 -88.5 47 4.2 -84.3 80 16 373.7 373.7 301.2 373.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5793.00 m Freezing level: 568.23 mb = 4852.82 m = 15921.14 ft Wetbulb zero: 583.65 mb = 4619.97 m = 15157.21 ft Precipitable water: 2.23 inches Sfc-500 mean rel hum: 76.19 % Est. max temperature: 32.89 C = 91.20 F Sfc-Lift cond lev (LCL): 978.58 mb = 258.17 m = 846.99 ft T: 25.41 C 700-500 lapse rate: 4.88 C/km ThetaE index: 13.93 C Layer 925.0- 683.0 mb Conv cond level (CCL): 873.91 mb = 1248.24 m = 4095.22 ft Mean mixing ratio: 16.83 g/kg Conv temperature: 31.91 C = 89.44 F Cap Strength: 2.05 C Lifted Index: -1.74 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.55 C Lifted Index @700 mb: -1.92 C Showalter Index: 0.02 C Risk: Thunderstorms probable Total Totals Index: 43.30 C Risk: None Vertical Totals Index: 23.10 C Cross Totals Index: 20.20 C K Index: 35.60 Risk: > 80 % chance of thunderstorms Sweat Index: 232.80 Risk: None Energy Index: -1.50 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 592.97 J/kg Max Up Vert Vel: 34.44 m/s Conv Inhibition (B-): 74.50 J/kg Cap Strength: 1.93 C Lift Cond Lev (LCL): 911.88 mb = 878.48 m = 2882.11 ft Lev Free Conv (LFC): 736.88 mb = 2701.92 m = 8864.47 ft Equ Level (EL): 206.88 mb = 12246.86 m = 40179.48 ft B at Equ Level: 592.20 J/kg Max Parcel Lev (MPL): 106.88 mb = 16228.52 m = 53242.53 ft Wind level data Storm motion: 120 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 1007 4 40 2 -1.3 -1.5 | 313 9 6.6 -6.1 1 1000 67 45 10 -7.1 -7.1 | 356 12 0.8 -11.7 2 973 305 50 11 -8.4 -7.1 | 3 12 -0.5 -11.7 3 940 610 70 12 -11.3 -4.1 | 21 9 -3.4 -8.7 4 925 754 75 13 -12.6 -3.4 | 30 9 -4.7 -8.0 5 908 914 80 15 -14.8 -2.6 | 44 10 -6.9 -7.2 6 850 1488 85 14 -13.9 -1.2 | 46 8 -6.1 -5.8 7 846 1524 90 14 -14.0 0.0 | 53 8 -6.1 -4.6 8 788 2134 100 12 -11.8 2.1 | 57 5 -3.9 -2.5 9 707 3048 95 13 -13.0 1.1 | 56 6 -5.1 -3.5 10 700 3135 90 13 -13.0 0.0 | 48 7 -5.1 -4.6 11 656 3658 95 11 -11.0 1.0 | 40 5 -3.1 -3.6 12 586 4572 100 10 -9.8 1.7 | 34 3 -2.0 -2.9 13 565 4877 100 11 -10.8 1.9 | 47 4 -2.9 -2.7 14 524 5486 95 13 -13.0 1.1 | 56 6 -5.1 -3.5 15 500 5860 95 14 -13.9 1.2 | 61 7 -6.1 -3.4 16 485 6096 95 14 -13.9 1.2 | 61 7 -6.1 -3.4 17 400 7590 105 11 -10.6 2.8 | 57 3 -2.7 -1.8 18 398 7620 105 11 -10.6 2.8 | 57 3 -2.7 -1.8 19 324 9144 90 7 -7.0 0.0 | 349 5 0.9 -4.6 20 300 9710 95 5 -5.0 0.4 | 325 5 2.9 -4.2 21 261 10668 95 9 -9.0 0.8 | 16 4 -1.1 -3.8 22 250 10980 120 9 -7.8 4.5 | 316 0 0.1 -0.1 23 209 12192 170 9 -1.6 8.9 | 236 8 6.3 4.3 24 200 12470 205 9 3.8 8.2 | 253 12 11.7 3.6 25 164 13716 235 10 8.2 5.7 | 266 16 16.1 1.1 26 150 14260 260 4 3.9 0.7 | 288 12 11.8 -3.9 27 127 15240 230 5 3.8 3.2 | 277 12 11.7 -1.4 28 103 16459 50 6 -4.6 -3.9 | 339 9 3.3 -8.5 29 100 16610 65 10 -9.1 -4.2 | 8 9 -1.2 -8.8 30 92 17075 80 16 -15.8 -2.8 | 47 11 -7.9 -7.4 31 74 18288 80 26 -25.6 -4.5 | 63 20 -17.7 -9.1 32 70 18620 95 22 -21.9 1.9 | 79 14 -14.0 -2.7 33 55 19812 110 27 -25.4 9.2 | 105 18 -17.5 4.6 34 49 20422 105 15 -14.5 3.9 | 84 7 -6.6 -0.7 Wind Parameters Mean winds (0-6000m): 90.3 at 12.2 knts Storm direction: 120.3 at 9.1 knts Shear (0-3000m) pos: 2.0 neg: 0.1 tot: 2.1 10-3/s Storm rel Dir Shear (0-3000m): 102.7 deg Storm rel helicity (0-3000m) pos: 45.5 neg: -0.2 tot: 45.3 m^2/s^2 ave: 15.1 10^-3 m/s^2 rel: 0.74 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 3.1 10^-3/s Energy-Hel index: 0.17 Bulk Rich Number: 75.70 Bulk Shear: 7.83 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 51 10 1 11| 10.1 0.0 10.1| 29.4 0.0 29.4 58.7 0.93| 12.6 11.7 1000 65 12 16 10| 6.9 0.0 6.9| 41.9 0.0 41.9 41.9 0.92| 9.1 8.4 1500 72 13 26 10| 4.4 0.0 4.4| 43.7 0.0 43.7 29.1 0.87| 6.7 5.9 2000 78 13 32 9| 3.0 0.0 3.0| 45.5 0.0 45.5 22.7 0.80| 5.8 4.6 2500 82 13 36 8| 2.4 0.0 2.4| 45.5 -0.1 45.5 18.2 0.77| 4.8 3.7 3000 84 13 39 8| 2.0 0.1 2.1| 45.5 -0.2 45.3 15.1 0.74| 4.2 3.1 4000 87 12 40 7| 1.4 0.2 1.5| 45.5 -3.0 42.5 10.6 0.58| 3.6 2.1 5000 89 12 41 6| 1.1 0.1 1.2| 46.5 -3.2 43.3 8.7 0.56| 3.1 1.7 6000 90 12 43 6| 0.9 0.3 1.2| 48.2 -3.2 45.0 7.5 0.55| 2.8 1.5 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251017.00.gif