UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100800.upa.cvt Date: 0000Z 8 OCT 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 8 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 1010 4 24.2 2.2 24 22.0 12.4 0 0 296.5 297.3 285.2 309.7 4.44 1 1009 13 24.6 24.2 98 0.4 24.3 0 0 297.0 300.5 297.2 352.5 19.17 2 991 172 25.4 23.4 89 2.0 23.9 324 1 299.3 302.7 297.4 353.7 18.59 3 925 778 22.2 18.9 82 3.3 19.9 255 17 302.0 304.8 295.8 346.3 15.02 4 870 1310 19.8 16.8 83 3.0 17.7 320 8 304.9 307.4 295.8 346.5 13.97 5 861 1400 20.0 15.3 74 4.7 16.8 333 6 306.0 308.4 295.4 344.4 12.80 6 850 1511 19.0 14.9 77 4.1 16.3 350 3 306.0 308.4 295.3 344.0 12.64 7 700 3155 9.4 6.6 83 2.8 7.7 30 13 312.9 314.6 294.3 340.1 8.77 8 681 3383 7.6 6.0 90 1.6 6.6 39 14 313.4 315.0 294.4 340.2 8.65 9 608 4313 3.8 -2.2 65 6.0 0.7 78 19 319.3 320.3 293.4 336.6 5.36 10 585 4626 2.4 -3.6 65 6.0 -0.7 91 21 321.2 322.2 293.7 337.5 5.02 11 560 4978 0.0 -3.6 77 3.6 -1.9 93 23 322.4 323.4 294.2 339.5 5.24 12 554 5064 0.0 -8.0 55 8.0 -3.7 91 22 323.4 324.2 293.3 335.9 3.78 13 552 5093 -0.3 -4.4 74 4.1 -2.4 90 21 323.4 324.4 294.3 339.8 5.01 14 546 5181 -0.5 -11.5 43 11.0 -5.2 88 19 324.2 324.7 292.8 333.9 2.91 15 539 5284 -1.3 -6.2 69 4.9 -3.7 85 17 324.4 325.3 294.1 339.2 4.47 16 500 5880 -5.1 -11.1 63 6.0 -7.7 65 12 326.8 327.5 293.8 337.9 3.28 17 492 6007 -5.5 -13.5 53 8.0 -8.7 65 12 327.8 328.4 293.6 337.2 2.74 18 487 6087 -6.1 -10.9 69 4.8 -8.2 65 12 328.1 328.7 294.2 339.6 3.42 19 468 6397 -7.7 -17.7 45 10.0 -11.3 67 15 329.8 330.2 293.6 336.9 2.03 20 441 6857 -10.3 -18.3 52 8.0 -13.1 70 20 332.2 332.6 294.1 339.4 2.05 21 400 7600 -15.7 -20.1 69 4.4 -17.1 75 28 334.6 335.0 294.7 341.5 1.94 22 384 7907 -18.3 -20.8 81 2.5 -19.1 74 29 335.1 335.5 294.8 341.9 1.90 23 300 9710 -30.1 -32.6 79 2.5 -30.6 75 36 343.0 343.1 295.8 346.1 0.82 24 298 9758 -30.5 -32.8 80 2.3 -30.9 75 36 343.0 343.2 295.8 346.1 0.81 25 263 10633 -37.9 -41.2 71 3.3 -38.2 80 39 344.7 344.8 295.8 346.2 0.39 26 250 10980 -40.9 -43.1 79 2.2 -41.1 80 39 345.3 345.3 295.9 346.6 0.34 27 229 11568 -46.3 -47.5 88 1.2 -46.4 75 46 345.8 345.8 295.9 346.7 0.23 28 227 11626 -46.9 -51.1 62 4.2 -47.1 75 47 345.8 345.8 295.8 346.4 0.15 29 222 11773 -48.1 -50.4 77 2.3 -48.2 74 49 346.1 346.2 295.9 346.8 0.17 30 221 11802 -48.3 -49.7 85 1.4 -48.4 73 49 346.3 346.3 296.0 347.0 0.18 31 219 11862 -48.9 -52.7 64 3.8 -49.1 73 50 346.2 346.3 295.9 346.8 0.13 32 212 12074 -50.7 -53.5 72 2.8 -50.8 71 52 346.7 346.7 296.0 347.2 0.12 33 200 12450 -53.1 -62.1 33 9.0 -53.4 65 60 348.7 348.7 296.4 348.9 0.04 34 190 12779 -55.3 -71.3 12 16.0 -55.5 69 63 350.3 350.3 296.7 350.4 0.01 35 167 13588 -62.7 -69.7 38 7.0 -62.8 78 71 351.1 351.1 296.9 351.2 0.02 36 154 14083 -67.1 -77.1 23 10.0 -67.2 86 87 351.8 351.8 297.0 351.9 0.01 37 143 14526 -70.7 -74.7 55 4.0 -70.7 93 107 353.1 353.1 297.3 353.1 0.01 38 134 14909 -73.7 -78.7 46 5.0 -73.7 100 125 354.4 354.4 297.5 354.4 0.01 39 128 15176 -74.4 -81.9 30 7.6 -74.4 105 137 357.8 357.8 298.2 357.9 0.00 40 127 15221 -74.5 -82.5 28 8.0 -74.5 101 135 358.4 358.4 298.4 358.4 0.00 41 112 15942 -80.1 -83.4 58 3.3 -80.1 100 122 361.1 361.1 298.9 361.1 0.00 42 102 16468 -82.5 -87.5 42 5.0 -82.5 366.2 366.2 299.9 366.3 0.00 TRP WND 128 15176 -74.4 -81.9 30 7.6 -74.4 105 137 357.8 357.8 298.2 357.9 0.00 Sounding variables and indices 1000-500 mb thick: 5788.10 m Freezing level: 554.00 mb = 5064.38 m = 16615.22 ft Wetbulb zero: 596.66 mb = 4465.43 m = 14650.20 ft Precipitable water: 2.25 inches Sfc-500 mean rel hum: 76.67 % Est. max temperature: 33.70 C = 92.66 F Sfc-Lift cond lev (LCL): 728.71 mb = 2814.59 m = 9234.11 ft T: 11.39 C 700-500 lapse rate: 5.32 C/km ThetaE index: 7.34 C Layer 925.0- 870.0 mb Conv cond level (CCL): 854.47 mb = 1465.73 m = 4808.78 ft Mean mixing ratio: 16.81 g/kg Conv temperature: 33.74 C = 92.74 F Cap Strength: 1.82 C Lifted Index: -2.07 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.64 C Lifted Index @700 mb: -1.17 C Showalter Index: 0.10 C Risk: Thunderstorms probable Total Totals Index: 44.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.10 C Cross Totals Index: 20.00 C K Index: 36.20 Risk: > 80 % chance of thunderstorms Sweat Index: 196.80 Risk: None Energy Index: -1.20 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 703.68 J/kg Max Up Vert Vel: 37.51 m/s Conv Inhibition (B-): 56.21 J/kg Cap Strength: 1.55 C Lift Cond Lev (LCL): 925.47 mb = 773.57 m = 2537.93 ft Lev Free Conv (LFC): 760.47 mb = 2453.47 m = 8049.33 ft Equ Level (EL): 190.47 mb = 12763.25 m = 41873.66 ft B at Equ Level: 698.91 J/kg Wind level data Storm motion: 96 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 1010 4 0 0 -0.0 -0.0 | 276 9 9.2 -1.0 1 1000 0 0 0 -0.0 -0.0 | 276 9 9.2 -1.0 2 970 305 240 3 2.6 1.5 | 267 12 11.8 0.5 3 941 610 245 13 11.8 5.5 | 258 22 21.0 4.5 4 925 778 255 17 16.4 4.4 | 262 26 25.7 3.4 5 911 914 260 18 17.7 3.1 | 265 27 27.0 2.2 6 850 1511 350 3 0.5 -3.0 | 292 11 9.8 -3.9 7 849 1524 345 3 0.8 -2.9 | 291 11 10.0 -3.9 8 790 2134 80 3 -3.0 -0.5 | 283 6 6.3 -1.5 9 709 3048 25 13 -5.5 -11.8 | 344 13 3.8 -12.7 10 700 3155 30 13 -6.5 -11.3 | 347 13 2.7 -12.2 11 658 3658 50 15 -11.5 -9.6 | 12 11 -2.2 -10.6 12 588 4572 90 21 -21.0 0.0 | 85 12 -11.8 -1.0 13 566 4877 95 25 -24.9 2.2 | 94 16 -15.7 1.2 14 525 5486 80 13 -12.8 -2.3 | 48 5 -3.6 -3.2 15 500 5880 65 12 -10.9 -5.1 | 15 6 -1.6 -6.0 16 486 6096 65 12 -10.9 -5.1 | 15 6 -1.6 -6.0 17 400 7600 75 28 -27.0 -7.2 | 65 20 -17.8 -8.2 18 399 7620 75 28 -27.0 -7.2 | 65 20 -17.8 -8.2 19 324 9144 70 31 -29.1 -10.6 | 60 23 -19.9 -11.6 20 300 9710 75 36 -34.8 -9.3 | 68 28 -25.5 -10.3 21 261 10668 80 39 -38.4 -6.8 | 75 30 -29.2 -7.7 22 250 10980 80 39 -38.4 -6.8 | 75 30 -29.2 -7.7 23 208 12192 70 54 -50.7 -18.5 | 65 46 -41.5 -19.4 24 200 12450 65 60 -54.4 -25.4 | 60 52 -45.1 -26.3 25 163 13716 80 73 -71.9 -12.7 | 78 64 -62.6 -13.6 26 128 15176 105 137 -132.3 35.5 | 106 128 -123.1 34.5 27 127 15240 100 134 -132.0 23.3 | 100 125 -122.7 22.3 28 103 16459 100 113 -111.3 19.6 | 100 104 -102.0 18.7 Wind Parameters Mean winds (0-6000m): 65.9 at 12.4 knts Storm direction: 95.9 at 9.3 knts Shear (0-3000m) pos: 2.1 neg: 1.3 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 67.9 deg Storm rel helicity (0-3000m) pos: 109.1 neg: -23.5 tot: 85.6 m^2/s^2 ave: 28.5 10^-3 m/s^2 rel: 0.26 Storm rel vorticity (0-3000m) horiz: 10.3 stream: 2.7 10^-3/s Energy-Hel index: 0.43 Bulk Rich Number: 21.32 Bulk Shear: 33.01 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 ------------------------------------------------------------------------------- 500 242 3 267 12| 0.0 9.8 9.8| 1.6 -15.2 -13.5 -27.1 -0.36| 11.2 -4.0 1000 253 10 264 18| 4.6 4.9 9.5| 51.0 -17.8 33.2 33.2 0.12| 13.1 1.5 1500 259 10 267 19| 3.7 3.3 7.0| 97.9 -21.0 76.9 51.3 0.24| 14.9 3.5 2000 264 8 270 17| 3.2 2.5 5.7| 98.9 -22.2 76.7 38.3 0.22| 12.1 2.6 2500 267 7 272 16| 2.6 1.1 3.7|104.5 -23.3 81.3 32.5 0.26| 10.8 2.8 3000 297 8 285 17| 2.1 1.3 3.4|109.1 -23.5 85.6 28.5 0.26| 10.3 2.7 4000 11 9 324 13| 2.7 1.0 3.7|140.4 -23.5 116.9 29.2 0.37| 9.1 3.4 5000 58 12 6 7| 2.9 0.8 3.7|172.9 -27.5 145.4 29.1 0.42| 8.9 3.7 6000 66 12 19 6| 2.4 1.7 4.2|172.9 -44.7 128.2 21.4 0.27| 8.5 2.3 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251008.00.gif