UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102100.upa.cvt Date: 0000Z 21 OCT 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 21 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 25.8 99 0.2 25.9 30 3 298.5 302.3 298.8 360.3 21.18 1 1000 75 26.0 22.4 81 3.6 23.4 35 8 299.1 302.3 296.5 349.6 17.30 2 993 137 26.2 21.8 77 4.4 23.0 35 10 300.0 303.0 296.4 349.1 16.79 3 925 761 21.8 19.2 85 2.6 20.0 45 14 301.6 304.4 295.9 346.7 15.31 4 922 789 21.8 19.3 86 2.5 20.1 46 14 301.9 304.7 296.1 347.5 15.46 5 910 904 23.6 16.6 65 7.0 18.8 50 13 304.9 307.3 295.3 344.2 13.17 6 850 1498 19.6 15.5 77 4.1 16.8 55 8 306.7 309.1 295.8 346.2 13.14 7 761 2442 12.4 12.4 100 0.0 12.4 53 6 308.7 311.0 295.6 345.1 11.98 8 700 3142 9.4 7.1 86 2.3 8.0 60 10 312.9 314.6 294.6 341.0 9.08 9 615 4207 3.4 3.4 100 0.0 3.4 60 6 317.8 319.3 295.1 343.1 7.98 10 591 4530 2.4 0.8 89 1.6 1.5 60 5 320.3 321.6 294.9 342.4 6.88 11 585 4613 2.6 -1.0 77 3.6 0.7 61 5 321.4 322.6 294.6 341.1 6.09 12 550 5111 -0.3 -6.3 64 6.0 -3.2 70 5 323.7 324.6 293.9 338.1 4.34 13 538 5287 -1.9 -2.4 96 0.5 -2.1 70 4 323.9 325.0 295.1 343.4 5.97 14 523 5513 -1.7 -6.5 70 4.8 -4.0 71 4 326.7 327.6 294.7 341.7 4.50 15 500 5870 -4.5 -9.2 70 4.7 -6.6 90 2 327.6 328.3 294.4 340.4 3.81 16 495 5949 -5.1 -9.7 70 4.6 -7.1 93 2 327.8 328.5 294.4 340.2 3.70 17 484 6124 -6.5 -7.2 95 0.7 -6.8 100 1 328.2 329.1 295.2 343.6 4.61 18 483 6140 -6.7 -7.2 96 0.5 -7.0 101 1 328.1 329.0 295.1 343.6 4.62 19 456 6586 -8.9 -9.4 96 0.5 -9.1 106 3 330.8 331.6 295.4 344.8 4.12 20 448 6723 -9.3 -15.3 62 6.0 -11.6 108 3 332.0 332.5 294.6 341.0 2.60 21 441 6844 -10.1 -11.9 87 1.8 -10.9 110 4 332.5 333.2 295.4 344.4 3.49 22 438 6897 -9.9 -16.9 57 7.0 -12.5 111 4 333.4 333.8 294.7 341.5 2.32 23 433 6985 -10.3 -18.3 52 8.0 -13.2 112 5 333.9 334.4 294.6 341.3 2.09 24 428 7074 -10.7 -13.7 79 3.0 -11.9 113 5 334.5 335.2 295.6 345.3 3.10 25 426 7110 -10.9 -17.9 56 7.0 -13.4 114 5 334.7 335.2 294.9 342.5 2.20 26 421 7200 -11.3 -16.2 67 4.9 -13.2 115 5 335.4 335.9 295.4 344.4 2.57 27 408 7440 -12.7 -19.7 56 7.0 -15.1 118 6 336.6 337.0 295.2 343.6 1.97 28 406 7477 -13.1 -17.0 72 3.9 -14.5 118 7 336.5 337.0 295.6 345.3 2.49 29 400 7590 -14.1 -20.1 60 6.0 -16.1 120 7 336.7 337.1 295.2 343.6 1.94 30 395 7686 -14.5 -21.5 55 7.0 -16.7 121 7 337.4 337.7 295.2 343.6 1.74 31 381 7958 -16.5 -18.4 85 1.9 -17.1 125 6 338.2 338.7 295.9 346.6 2.35 32 337 8873 -21.7 -29.7 48 8.0 -23.5 140 5 343.2 343.4 295.9 346.9 0.97 33 321 9230 -24.3 -30.3 58 6.0 -25.6 144 4 344.4 344.6 296.2 348.1 0.96 34 308 9530 -27.1 -30.1 76 3.0 -27.8 142 4 344.6 344.8 296.3 348.4 1.02 35 300 9720 -28.3 -33.3 62 5.0 -29.2 140 4 345.5 345.7 296.3 348.5 0.77 36 295 9840 -29.1 -35.1 56 6.0 -30.2 137 4 346.0 346.2 296.3 348.6 0.66 37 282 10161 -31.7 -37.7 55 6.0 -32.6 129 5 346.8 346.9 296.4 348.9 0.53 38 264 10623 -35.9 -39.3 71 3.4 -36.3 116 6 347.2 347.3 296.4 349.1 0.48 39 250 11000 -38.7 -42.6 67 3.9 -39.1 140 6 348.5 348.6 296.6 350.0 0.36 40 241 11250 -41.1 -44.0 73 2.9 -41.3 133 7 348.6 348.7 296.6 349.9 0.32 41 200 12490 -51.1 -57.1 49 6.0 -51.3 105 14 351.8 351.9 297.1 352.2 0.08 42 189 12855 -54.5 -61.5 42 7.0 -54.7 111 14 352.1 352.1 297.1 352.3 0.05 43 167 13634 -61.5 -66.5 51 5.0 -61.6 123 14 353.1 353.1 297.3 353.3 0.03 44 150 14290 -67.1 -71.5 54 4.4 -67.1 120 15 354.5 354.5 297.6 354.6 0.02 45 134 14960 -72.9 -77.8 47 4.9 -72.9 117 18 355.8 355.8 297.8 355.8 0.01 46 122 15503 -77.1 -81.2 52 4.1 -77.1 112 21 357.8 357.8 298.2 357.8 0.00 47 106 16298 -82.5 -88.5 35 6.0 -82.5 102 25 362.2 362.2 299.1 362.2 0.00 48 100 16620 -85.3 -90.3 40 5.0 -85.3 105 23 362.9 362.9 299.2 362.9 0.00 49 94 16960 -87.3 -91.6 45 4.3 -87.3 105 31 365.5 365.5 299.7 365.5 0.00 50 87 17386 -83.9 -88.9 41 5.0 -83.9 107 28 380.5 380.5 302.3 380.5 0.00 51 84 17584 -78.7 -85.7 31 7.0 -78.7 107 27 394.9 394.9 304.5 394.9 0.00 52 74 18316 -73.9 -85.9 14 12.0 -74.0 105 21 419.6 419.6 307.7 419.6 0.00 53 70 18640 -75.1 -87.1 14 12.0 -75.2 60 13 423.7 423.7 308.2 423.7 0.00 54 69 18723 -75.1 -87.1 14 12.0 -75.2 61 13 425.5 425.5 308.3 425.5 0.00 55 61 19444 -71.7 -87.7 7 16.0 -71.8 66 18 448.3 448.3 310.7 448.3 0.00 TRP 94 16960 -87.3 -91.6 45 4.3 -87.3 105 31 365.5 365.5 299.7 365.5 0.00 WND Sounding variables and indices 1000-500 mb thick: 5795.00 m Freezing level: 553.62 mb = 5059.30 m = 16598.54 ft Wetbulb zero: 578.99 mb = 4696.40 m = 15407.94 ft Precipitable water: 2.37 inches Sfc-500 mean rel hum: 83.99 % Est. max temperature: 33.98 C = 93.17 F Sfc-Lift cond lev (LCL): 1005.72 mb = 24.22 m = 79.46 ft T: 26.00 C 700-500 lapse rate: 5.10 C/km ThetaE index: 13.61 C Layer 1000.0- 922.0 mb Conv cond level (CCL): 833.05 mb = 1669.89 m = 5478.56 ft Mean mixing ratio: 16.06 g/kg Conv temperature: 34.62 C = 94.32 F Cap Strength: 3.81 C Lifted Index: -0.95 C Risk: Thunderstorms probable Lifted Index @300 mb: 1.04 C Lifted Index @700 mb: -0.70 C Showalter Index: -0.18 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: 37.30 Risk: > 80 % chance of thunderstorms Sweat Index: 204.00 Risk: None Energy Index: -1.18 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 175.30 J/kg Max Up Vert Vel: 18.72 m/s Conv Inhibition (B-): 96.19 J/kg Cap Strength: 3.81 C Lift Cond Lev (LCL): 908.78 mb = 915.59 m = 3003.85 ft Lev Free Conv (LFC): 783.78 mb = 2190.20 m = 7185.61 ft Equ Level (EL): 423.78 mb = 7149.92 m = 23457.47 ft B at Equ Level: 174.40 J/kg Max Parcel Lev (MPL): 213.78 mb = 12047.08 m = 39524.06 ft Wind level data Storm motion: 84 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 1008 4 30 3 -1.5 -2.6 | 297 4 4.0 -2.0 1 1000 75 35 8 -4.6 -6.6 | 351 6 0.9 -6.0 2 974 305 35 14 -8.0 -11.5 | 13 11 -2.5 -10.9 3 941 610 40 15 -9.6 -11.5 | 21 12 -4.1 -10.9 4 925 761 45 14 -9.9 -9.9 | 25 10 -4.4 -9.3 5 909 914 50 13 -10.0 -8.4 | 30 9 -4.5 -7.8 6 850 1498 55 8 -6.6 -4.6 | 15 4 -1.1 -4.0 7 847 1524 55 8 -6.6 -4.6 | 15 4 -1.1 -4.0 8 789 2134 50 4 -3.1 -2.6 | 310 3 2.4 -2.0 9 708 3048 60 9 -7.8 -4.5 | 30 5 -2.3 -4.0 10 700 3142 60 10 -8.7 -5.0 | 35 5 -3.2 -4.5 11 657 3658 60 8 -6.9 -4.0 | 23 4 -1.4 -3.5 12 587 4572 60 5 -4.3 -2.5 | 329 2 1.2 -2.0 13 565 4877 70 5 -4.7 -1.7 | 326 1 0.8 -1.2 14 524 5486 70 4 -3.8 -1.4 | 295 2 1.7 -0.8 15 500 5870 90 2 -2.0 0.0 | 261 4 3.5 0.5 16 486 6096 100 1 -1.0 0.2 | 261 5 4.5 0.7 17 400 7590 120 7 -6.1 3.5 | 172 4 -0.6 4.0 18 398 7620 120 7 -6.1 3.5 | 172 4 -0.6 4.0 19 324 9144 145 4 -2.3 3.3 | 220 5 3.2 3.8 20 300 9720 140 4 -2.6 3.1 | 219 5 2.9 3.6 21 262 10668 115 6 -5.4 2.5 | 181 3 0.1 3.1 22 250 11000 140 6 -3.9 4.6 | 198 5 1.6 5.1 23 209 12192 105 9 -8.7 2.3 | 132 4 -3.2 2.9 24 200 12490 105 14 -13.5 3.6 | 117 9 -8.0 4.2 25 164 13716 125 14 -11.5 8.0 | 145 10 -6.0 8.6 26 150 14290 120 15 -13.0 7.5 | 137 11 -7.5 8.0 27 127 15240 115 20 -18.1 8.5 | 125 16 -12.6 9.0 28 103 16459 100 26 -25.6 4.5 | 104 21 -20.1 5.1 29 100 16620 105 23 -22.2 6.0 | 111 18 -16.7 6.5 30 94 16960 105 31 -29.9 8.0 | 109 26 -24.4 8.6 31 74 18288 110 22 -20.7 7.5 | 118 17 -15.2 8.1 32 70 18640 60 13 -11.3 -6.5 | 44 8 -5.8 -6.0 33 55 19812 70 21 -19.7 -7.2 | 65 16 -14.2 -6.6 Wind Parameters Mean winds (0-6000m): 54.3 at 7.4 knts Storm direction: 84.3 at 5.5 knts Shear (0-3000m) pos: 1.6 neg: 0.5 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): 90.7 deg Storm rel helicity (0-3000m) pos: 25.3 neg: -5.4 tot: 19.9 m^2/s^2 ave: 6.6 10^-3 m/s^2 rel: 0.36 Storm rel vorticity (0-3000m) horiz: 5.1 stream: 1.8 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 50.29 Bulk Shear: 3.49 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 36 12 8 9| 12.0 0.0 12.0| 15.6 0.0 15.6 31.1 0.75| 12.8 9.5 1000 41 13 17 10| 4.9 0.0 4.9| 21.5 -0.2 21.4 21.4 0.67| 8.7 5.8 1500 44 12 19 8| 1.9 0.0 1.9| 21.5 -2.3 19.2 12.8 0.47| 7.3 3.4 2000 45 10 16 7| 1.4 0.8 2.2| 21.5 -4.9 16.6 8.3 0.29| 6.3 1.8 2500 46 9 12 6| 1.4 0.7 2.0| 23.0 -5.4 17.6 7.0 0.31| 5.5 1.7 3000 48 9 12 6| 1.6 0.5 2.2| 25.3 -5.4 19.9 6.6 0.36| 5.1 1.8 4000 51 9 15 5| 1.2 0.6 1.8| 26.0 -7.2 18.8 4.7 0.28| 4.3 1.2 5000 53 8 13 5| 0.9 0.7 1.6| 26.0 -8.4 17.6 3.5 0.21| 3.7 0.8 6000 54 7 7 4| 0.5 0.6 1.0| 26.0 -9.6 16.4 2.7 0.13| 3.4 0.5 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251021.00.gif