UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102000.upa.cvt Date: 0000Z 20 OCT 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 20 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 1006 4 26.0 24.0 89 2.0 24.6 40 5 298.6 302.1 297.5 354.0 19.00 1 1000 58 27.2 22.4 75 4.8 23.7 40 8 300.4 303.5 296.8 351.1 17.30 2 935 652 24.8 20.2 76 4.6 21.5 52 12 303.7 306.7 297.0 351.7 16.14 3 925 747 24.2 20.1 78 4.1 21.3 55 11 304.1 307.1 297.1 352.3 16.22 4 850 1482 18.8 16.5 86 2.3 17.2 95 9 305.8 308.5 296.1 347.9 14.03 5 744 2613 11.0 11.0 100 0.0 11.0 97 7 309.2 311.3 295.1 343.2 11.16 6 723 2854 12.6 6.6 67 6.0 8.9 90 5 313.5 315.1 294.3 339.9 8.49 7 700 3125 10.0 6.6 79 3.4 7.9 90 4 313.6 315.2 294.5 340.8 8.77 8 653 3700 6.2 2.8 79 3.4 4.2 90 4 315.6 316.9 293.9 338.2 7.19 9 576 4721 0.4 -2.9 78 3.3 -1.3 107 6 320.3 321.3 293.7 337.7 5.37 10 567 4847 -0.5 -0.5 100 0.0 -0.5 109 7 320.7 322.0 294.7 341.7 6.52 11 547 5135 -1.5 -3.3 88 1.8 -2.4 108 7 322.8 323.9 294.5 340.7 5.49 12 543 5193 -1.3 -6.3 69 5.0 -3.7 107 8 323.7 324.6 293.9 338.2 4.40 13 541 5223 -1.5 -3.4 87 1.9 -2.5 107 8 323.8 324.9 294.8 341.9 5.51 14 538 5267 -1.3 -7.3 64 6.0 -4.1 107 8 324.6 325.4 293.9 338.2 4.11 15 515 5615 -3.1 -4.2 92 1.1 -3.7 107 7 326.5 327.6 295.4 344.5 5.45 16 510 5693 -2.9 -6.8 74 3.9 -4.8 108 6 327.6 328.5 295.0 342.7 4.51 17 500 5850 -3.9 -7.8 74 3.9 -5.7 110 5 328.3 329.1 295.0 342.6 4.26 18 497 5897 -4.3 -8.9 70 4.6 -6.4 111 5 328.4 329.1 294.7 341.6 3.93 19 478 6204 -6.3 -8.4 85 2.1 -7.3 113 4 329.6 330.4 295.3 343.9 4.25 20 474 6269 -6.5 -11.5 68 5.0 -8.7 111 4 330.1 330.8 294.7 341.5 3.35 21 450 6674 -8.5 -11.7 78 3.2 -9.9 102 5 332.5 333.3 295.4 344.5 3.47 22 400 7580 -13.3 -26.3 33 13.0 -17.0 80 6 337.7 337.9 294.7 341.8 1.12 23 392 7734 -13.9 -27.9 30 14.0 -17.7 85 6 338.9 339.1 294.9 342.5 0.98 24 386 7851 -14.9 -28.9 29 14.0 -18.5 85 6 339.1 339.2 294.9 342.5 0.91 25 375 8069 -16.3 -25.3 46 9.0 -18.8 85 5 340.0 340.3 295.5 344.8 1.30 26 353 8521 -19.5 -32.5 31 13.0 -22.3 85 4 341.6 341.8 295.4 344.3 0.71 27 347 8649 -20.5 -28.5 49 8.0 -22.5 85 4 342.0 342.2 295.7 345.9 1.05 28 337 8865 -22.1 -37.1 24 15.0 -24.8 85 4 342.7 342.8 295.4 344.5 0.47 29 304 9615 -27.5 -43.5 20 16.0 -29.6 126 1 345.3 345.4 295.8 346.4 0.27 30 300 9710 -28.3 -43.3 22 15.0 -30.3 135 1 345.5 345.6 295.9 346.6 0.28 31 274 10348 -33.5 -49.5 19 16.0 -35.0 204 2 347.0 347.1 296.1 347.7 0.15 32 270 10451 -34.3 -41.3 49 7.0 -35.1 215 2 347.3 347.4 296.4 348.9 0.38 33 259 10738 -36.9 -41.0 66 4.1 -37.4 228 2 347.7 347.8 296.5 349.3 0.41 34 256 10818 -37.5 -46.5 39 9.0 -38.3 214 2 347.9 348.0 296.4 348.9 0.23 35 251 10953 -38.5 -49.5 30 11.0 -39.4 190 1 348.4 348.5 296.4 349.1 0.17 36 250 10980 -38.7 -49.7 30 11.0 -39.5 185 1 348.5 348.6 296.4 349.2 0.16 37 236 11373 -42.3 -48.3 52 6.0 -42.8 195 3 348.9 348.9 296.5 349.7 0.20 38 226 11664 -44.9 -52.9 40 8.0 -45.3 202 4 349.2 349.3 296.6 349.8 0.12 39 220 11843 -45.7 -59.7 19 14.0 -46.3 206 5 350.7 350.7 296.8 351.0 0.06 40 200 12470 -51.3 -65.3 17 14.0 -51.7 210 6 351.5 351.5 297.0 351.7 0.03 41 197 12568 -51.9 -67.9 13 16.0 -52.2 211 6 352.1 352.1 297.1 352.2 0.02 42 167 13616 -61.3 -70.3 29 9.0 -61.4 223 3 353.5 353.5 297.4 353.5 0.02 43 159 13919 -63.5 -74.5 21 11.0 -63.6 219 3 354.7 354.7 297.7 354.8 0.01 44 141 14645 -70.3 -74.4 55 4.1 -70.4 192 5 355.2 355.2 297.7 355.3 0.01 45 121 15537 -77.9 -82.0 51 4.1 -77.9 357.2 357.2 298.1 357.2 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5792.00 m Freezing level: 572.00 mb = 4777.06 m = 15672.56 ft Wetbulb zero: 594.37 mb = 4465.50 m = 14650.43 ft Precipitable water: 2.32 inches Sfc-500 mean rel hum: 82.39 % Est. max temperature: 33.07 C = 91.52 F Sfc-Lift cond lev (LCL): 977.61 mb = 258.26 m = 847.28 ft T: 26.39 C 700-500 lapse rate: 5.10 C/km ThetaE index: 12.39 C Layer 850.0- 700.0 mb Conv cond level (CCL): 855.71 mb = 1423.77 m = 4671.12 ft Mean mixing ratio: 16.59 g/kg Conv temperature: 33.08 C = 91.54 F Cap Strength: 2.15 C Lifted Index: -1.52 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.84 C Lifted Index @700 mb: -1.04 C Showalter Index: -0.17 C Risk: Thunderstorms probable Total Totals Index: 43.10 C Risk: None Vertical Totals Index: 22.70 C Cross Totals Index: 20.40 C K Index: 35.80 Risk: > 80 % chance of thunderstorms Sweat Index: 221.00 Risk: None Energy Index: -1.12 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 517.41 J/kg Max Up Vert Vel: 32.17 m/s Conv Inhibition (B-): 45.27 J/kg Cap Strength: 2.15 C Lift Cond Lev (LCL): 895.63 mb = 1027.45 m = 3370.86 ft Lev Free Conv (LFC): 820.63 mb = 1780.69 m = 5842.10 ft Equ Level (EL): 210.63 mb = 12129.29 m = 39793.78 ft B at Equ Level: 514.38 J/kg Wind level data Storm motion: 118 at 6 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 1006 4 40 5 -3.2 -3.8 | 346 7 1.7 -6.5 1 1000 58 40 8 -5.1 -6.1 | 2 9 -0.3 -8.8 2 972 305 40 13 -8.4 -10.0 | 15 13 -3.5 -12.6 3 939 610 50 12 -9.2 -7.7 | 23 11 -4.3 -10.3 4 925 747 55 11 -9.0 -6.3 | 25 10 -4.1 -8.9 5 907 914 60 10 -8.7 -5.0 | 26 9 -3.8 -7.6 6 850 1482 95 9 -9.0 0.8 | 66 4 -4.1 -1.8 7 846 1524 95 9 -9.0 0.8 | 66 4 -4.1 -1.8 8 787 2134 110 10 -9.4 3.4 | 100 5 -4.5 0.8 9 706 3048 85 4 -4.0 -0.3 | 343 3 0.9 -3.0 10 700 3125 90 4 -4.0 0.0 | 342 3 0.9 -2.6 11 655 3658 90 4 -4.0 0.0 | 342 3 0.9 -2.6 12 585 4572 105 6 -5.8 1.6 | 41 1 -0.9 -1.1 13 564 4877 110 7 -6.6 2.4 | 82 2 -1.7 -0.2 14 523 5486 105 8 -7.7 2.1 | 79 3 -2.9 -0.6 15 500 5850 110 5 -4.7 1.7 | 349 1 0.2 -0.9 16 484 6096 115 4 -3.6 1.7 | 307 2 1.3 -0.9 17 400 7580 80 6 -5.9 -1.0 | 16 4 -1.0 -3.7 18 398 7620 85 6 -6.0 -0.5 | 19 3 -1.1 -3.1 19 324 9144 85 3 -3.0 -0.3 | 327 3 1.9 -2.9 20 300 9710 135 1 -0.7 0.7 | 295 5 4.2 -1.9 21 261 10668 240 2 1.7 1.0 | 284 7 6.6 -1.6 22 250 10980 185 1 0.1 1.0 | 288 5 5.0 -1.6 23 209 12192 215 6 3.4 4.9 | 255 9 8.3 2.3 24 200 12470 210 6 3.0 5.2 | 252 8 7.9 2.6 25 163 13716 225 3 2.1 2.1 | 274 7 7.0 -0.5 26 127 15240 170 7 -1.2 6.9 | 221 6 3.7 4.3 Wind Parameters Mean winds (0-6000m): 88.3 at 7.4 knts Storm direction: 118.3 at 5.5 knts Shear (0-3000m) pos: 1.6 neg: 1.0 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 2.8 deg Storm rel helicity (0-3000m) pos: 28.4 neg: -4.5 tot: 23.9 m^2/s^2 ave: 8.0 10^-3 m/s^2 rel: 0.29 Storm rel vorticity (0-3000m) horiz: 4.8 stream: 1.4 10^-3/s Energy-Hel index: 0.09 Bulk Rich Number: 61.49 Bulk Shear: 8.41 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 41 11 12 11| 7.6 0.0 7.6| 14.8 0.0 14.8 29.7 0.60| 9.9 6.0 1000 48 11 18 10| 3.0 0.0 3.0| 19.6 0.0 19.6 19.6 0.54| 7.3 3.9 1500 57 10 25 9| 2.5 0.0 2.5| 25.4 0.0 25.4 16.9 0.59| 6.5 3.9 2000 68 10 35 8| 2.3 0.0 2.3| 27.9 0.0 27.9 13.9 0.63| 5.4 3.4 2500 75 10 42 7| 1.9 0.5 2.4| 28.4 -2.1 26.3 10.5 0.47| 5.0 2.4 3000 78 9 43 6| 1.6 1.0 2.6| 28.4 -4.5 23.9 8.0 0.29| 4.8 1.4 4000 80 8 36 5| 1.3 0.8 2.0| 28.8 -4.8 24.0 6.0 0.29| 3.8 1.1 5000 84 8 38 4| 1.3 0.6 1.9| 29.8 -4.8 25.1 5.0 0.33| 3.3 1.1 6000 88 7 41 4| 0.9 0.5 1.4| 29.8 -5.7 24.2 4.0 0.22| 3.1 0.7 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251020.00.gif