UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102200.upa.cvt Date: 0000Z 22 OCT 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 22 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 1008 4 26.0 24.0 89 2.0 24.6 40 3 298.5 301.9 297.4 353.7 18.96 1 1003 48 25.6 19.6 69 6.0 21.4 46 5 298.5 301.1 294.4 340.5 14.46 2 1000 75 25.4 19.4 69 6.0 21.2 50 7 298.5 301.2 294.4 340.2 14.32 3 943 590 22.0 17.5 76 4.5 18.9 50 10 300.1 302.6 294.2 339.6 13.46 4 925 758 23.2 16.2 65 7.0 18.4 45 13 303.0 305.4 294.4 340.4 12.62 5 923 777 23.4 16.4 65 7.0 18.6 45 13 303.4 305.8 294.7 341.5 12.81 6 850 1492 18.8 13.8 73 5.0 15.5 80 9 305.8 308.0 294.6 341.1 11.75 7 735 2728 12.8 0.8 44 12.0 6.2 67 2 312.3 313.3 291.6 329.6 5.52 8 700 3137 10.0 5.0 71 5.0 7.1 105 2 313.6 315.1 293.8 338.0 7.84 9 685 3317 8.8 5.4 79 3.4 6.8 119 2 314.2 315.7 294.3 339.9 8.24 10 634 3954 5.4 3.3 86 2.1 4.2 129 3 317.3 318.8 294.7 341.6 7.68 11 613 4230 4.2 0.7 78 3.5 2.2 115 2 319.0 320.3 294.3 340.1 6.58 12 611 4256 4.6 0.4 74 4.2 2.2 113 2 319.8 321.0 294.4 340.5 6.46 13 601 4391 4.6 -2.4 60 7.0 0.9 106 2 321.3 322.3 294.0 338.6 5.34 14 562 4935 0.6 -0.1 95 0.7 0.2 90 2 322.8 324.1 295.4 344.8 6.78 15 529 5421 0.0 -5.0 69 5.0 -2.6 90 3 327.7 328.7 295.4 344.4 4.99 16 500 5870 -3.7 -7.4 75 3.7 -5.5 75 4 328.5 329.4 295.1 343.3 4.39 17 479 6209 -5.5 -8.7 78 3.2 -7.0 81 5 330.4 331.2 295.4 344.4 4.14 18 475 6275 -5.5 -12.5 58 7.0 -8.5 84 5 331.2 331.8 294.7 341.8 3.08 19 459 6544 -7.3 -12.3 67 5.0 -9.4 98 4 332.2 332.8 295.1 343.3 3.24 20 427 7106 -9.7 -23.7 31 14.0 -14.0 128 4 336.0 336.3 294.5 340.9 1.32 21 417 7290 -10.3 -22.3 37 12.0 -14.2 138 3 337.6 337.9 295.1 343.1 1.53 22 408 7458 -11.5 -18.5 56 7.0 -14.0 147 3 338.1 338.6 295.7 345.9 2.18 23 400 7610 -12.7 -24.7 36 12.0 -16.3 155 3 338.5 338.7 295.1 343.2 1.29 24 391 7782 -13.9 -27.9 30 14.0 -17.7 163 3 339.1 339.3 295.0 342.8 0.99 25 362 8360 -18.1 -32.1 28 14.0 -21.2 158 3 341.1 341.2 295.2 343.8 0.72 26 350 8610 -19.9 -30.9 37 11.0 -22.4 155 2 341.9 342.1 295.6 345.1 0.83 27 347 8674 -20.3 -25.3 64 5.0 -21.7 155 2 342.2 342.5 296.1 347.5 1.41 28 341 8802 -21.1 -30.1 44 9.0 -23.2 154 2 342.9 343.1 295.8 346.3 0.92 29 338 8867 -21.7 -26.7 64 5.0 -23.0 153 2 342.9 343.2 296.1 347.7 1.27 30 330 9042 -22.9 -33.9 36 11.0 -25.1 151 2 343.6 343.8 295.8 346.2 0.66 31 302 9683 -28.3 -46.3 16 18.0 -30.4 127 5 344.8 344.9 295.7 345.7 0.20 32 300 9730 -28.7 -43.7 22 15.0 -30.6 125 5 344.9 345.0 295.7 346.0 0.27 33 299 9754 -28.9 -36.9 46 8.0 -30.2 125 5 345.0 345.1 296.0 347.1 0.54 34 295 9851 -29.5 -43.5 25 14.0 -31.3 125 5 345.5 345.5 295.8 346.6 0.28 35 292 9924 -29.9 -34.9 62 5.0 -30.7 125 6 345.9 346.0 296.3 348.5 0.68 36 288 10023 -30.5 -34.9 65 4.4 -31.2 125 6 346.4 346.6 296.4 349.1 0.68 37 286 10073 -30.9 -33.7 76 2.8 -31.4 125 6 346.5 346.7 296.5 349.5 0.78 38 274 10378 -32.7 -37.7 61 5.0 -33.4 125 7 348.2 348.3 296.7 350.4 0.54 39 250 11020 -38.3 -41.8 70 3.5 -38.7 130 6 349.1 349.2 296.8 350.7 0.39 40 200 12510 -51.1 -55.8 57 4.7 -51.3 125 17 351.8 351.9 297.1 352.3 0.10 41 192 12774 -53.5 -56.4 70 2.9 -53.6 128 16 352.1 352.2 297.2 352.5 0.10 42 180 13185 -57.5 -61.4 61 3.9 -57.6 133 14 352.2 352.2 297.1 352.4 0.05 43 173 13435 -59.5 -65.5 46 6.0 -59.6 136 13 352.9 352.9 297.3 353.0 0.03 44 166 13692 -61.9 -65.7 60 3.8 -62.0 140 12 353.1 353.1 297.3 353.2 0.03 45 150 14310 -67.7 -71.9 55 4.2 -67.7 150 11 353.5 353.5 297.4 353.5 0.02 46 133 15022 -74.5 -79.1 49 4.6 -74.5 131 13 353.7 353.7 297.4 353.8 0.01 47 113 15956 -80.3 -84.6 49 4.3 -80.3 359.8 359.8 298.7 359.8 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5795.00 m Freezing level: 529.00 mb = 5420.67 m = 17784.14 ft Wetbulb zero: 559.66 mb = 4968.08 m = 16299.28 ft Precipitable water: 1.98 inches Sfc-500 mean rel hum: 70.87 % Est. max temperature: 33.12 C = 91.61 F Sfc-Lift cond lev (LCL): 979.56 mb = 256.15 m = 840.38 ft T: 24.20 C 700-500 lapse rate: 5.01 C/km ThetaE index: 14.15 C Layer 1003.0- 925.0 mb Conv cond level (CCL): 765.77 mb = 2379.62 m = 7807.05 ft Mean mixing ratio: 13.67 g/kg Conv temperature: 38.01 C = 100.42 F Cap Strength: 4.15 C Lifted Index: 2.84 C Risk: None Lifted Index @300 mb: 5.03 C Lifted Index @700 mb: 2.13 C Showalter Index: 2.67 C Risk: Showers probable Total Totals Index: 40.00 C Risk: None Vertical Totals Index: 22.50 C Cross Totals Index: 17.50 C K Index: 31.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 187.60 Risk: None Energy Index: 0.40 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 23.32 J/kg Max Up Vert Vel: 6.83 m/s Conv Inhibition (B-): 2994.89 J/kg Cap Strength: 4.15 C Lift Cond Lev (LCL): 882.21 mb = 1169.17 m = 3835.81 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 99 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 1008 4 40 3 -1.9 -2.3 | 332 3 1.5 -2.9 1 1000 75 50 7 -5.4 -4.5 | 21 5 -1.9 -5.1 2 974 305 45 9 -6.4 -6.4 | 23 8 -2.9 -6.9 3 941 610 50 10 -7.7 -6.4 | 31 8 -4.2 -7.0 4 925 758 45 13 -9.2 -9.2 | 31 11 -5.7 -9.7 5 908 914 45 15 -10.6 -10.6 | 33 13 -7.2 -11.2 6 850 1492 80 9 -8.9 -1.6 | 69 6 -5.4 -2.1 7 847 1524 80 9 -8.9 -1.6 | 69 6 -5.4 -2.1 8 788 2134 25 1 -0.4 -0.9 | 296 3 3.0 -1.5 9 707 3048 90 2 -2.0 0.0 | 291 2 1.4 -0.6 10 700 3137 105 2 -1.9 0.5 | 271 2 1.5 -0.0 11 657 3658 145 3 -1.7 2.5 | 222 3 1.7 1.9 12 587 4572 95 2 -2.0 0.2 | 285 2 1.5 -0.4 13 565 4877 90 2 -2.0 0.0 | 291 2 1.4 -0.6 14 524 5486 90 3 -3.0 0.0 | 321 1 0.4 -0.6 15 500 5870 75 4 -3.9 -1.0 | 15 2 -0.4 -1.6 16 486 6096 75 5 -4.8 -1.3 | 37 2 -1.4 -1.8 17 400 7610 155 3 -1.3 2.7 | 225 3 2.2 2.2 18 399 7620 165 3 -0.8 2.9 | 229 4 2.7 2.3 19 325 9144 150 2 -1.0 1.7 | 244 3 2.4 1.2 20 300 9730 125 5 -4.1 2.9 | 164 2 -0.6 2.3 21 263 10668 125 8 -6.6 4.6 | 142 5 -3.1 4.0 22 250 11020 130 6 -4.6 3.9 | 161 3 -1.1 3.3 23 210 12192 155 8 -3.4 7.3 | 181 7 0.1 6.7 24 200 12510 125 17 -13.9 9.8 | 131 14 -10.5 9.2 25 165 13716 140 12 -7.7 9.2 | 154 10 -4.3 8.6 26 150 14310 150 11 -5.5 9.5 | 167 9 -2.1 9.0 27 128 15240 125 14 -11.5 8.0 | 133 11 -8.0 7.5 Wind Parameters Mean winds (0-6000m): 69.1 at 4.7 knts Storm direction: 99.1 at 3.5 knts Shear (0-3000m) pos: 1.3 neg: 1.2 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): -38.2 deg Storm rel helicity (0-3000m) pos: 22.8 neg: -9.4 tot: 13.3 m^2/s^2 ave: 4.4 10^-3 m/s^2 rel: 0.07 Storm rel vorticity (0-3000m) horiz: 5.7 stream: 0.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 10.09 Bulk Shear: 2.31 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 47 8 22 7| 6.9 0.0 6.9| 5.5 0.0 5.5 10.9 0.66| 7.4 4.9 1000 47 10 28 9| 5.7 0.0 5.7| 11.2 0.0 11.2 11.2 0.46| 7.3 3.4 1500 52 11 35 9| 2.4 0.0 2.4| 22.6 0.0 22.6 15.0 0.51| 7.6 3.9 2000 55 9 36 7| 1.8 1.9 3.7| 22.6 -7.9 14.7 7.3 0.14| 7.7 1.0 2500 55 8 31 6| 1.4 1.5 2.9| 22.7 -9.3 13.4 5.4 0.08| 6.6 0.5 3000 56 7 27 5| 1.3 1.2 2.6| 22.8 -9.4 13.3 4.4 0.07| 5.7 0.4 4000 63 6 28 4| 1.1 0.9 2.0| 22.9 -10.3 12.6 3.2 0.02| 4.7 0.1 5000 67 5 24 3| 0.9 0.8 1.7| 23.5 -10.3 13.2 2.6 0.06| 4.0 0.2 6000 69 5 22 2| 0.7 0.5 1.3| 24.1 -10.3 13.8 2.3 0.10| 3.5 0.3 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251022.00.gif