UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025051700.upa.cvt Date: 0000Z 17 MAY 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 17 MAY 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 1009 4 25.8 24.0 90 1.8 24.5 40 3 298.2 301.6 297.3 353.3 18.94 1 1001 73 25.2 24.0 93 1.2 24.3 44 4 298.3 301.7 297.4 353.9 19.09 2 1000 82 25.2 23.8 92 1.4 24.2 45 4 298.4 301.8 297.4 353.3 18.88 3 991 162 26.8 23.0 80 3.8 24.0 47 5 300.7 304.0 297.5 354.0 18.13 4 971 343 26.6 21.6 74 5.0 23.0 52 6 302.3 305.4 297.1 352.4 16.96 5 925 771 24.2 20.5 80 3.7 21.5 75 7 304.1 307.1 297.4 353.6 16.63 6 850 1509 20.2 16.3 78 3.9 17.5 115 10 307.3 309.9 296.4 349.1 13.85 7 700 3162 11.2 6.2 71 5.0 8.2 145 12 314.9 316.5 294.7 341.5 8.53 8 683 3367 10.4 4.4 66 6.0 6.8 147 12 316.2 317.7 294.4 340.5 7.70 9 677 3441 10.6 4.6 66 6.0 7.0 148 11 317.2 318.8 294.8 342.2 7.88 10 575 4783 2.0 -0.1 86 2.1 0.8 138 5 322.3 323.6 295.2 343.8 6.62 11 562 4967 0.8 -1.3 86 2.1 -0.3 137 4 323.0 324.3 295.1 343.2 6.20 12 557 5039 0.8 -5.2 64 6.0 -2.2 134 4 323.9 324.8 294.1 339.2 4.67 13 500 5900 -4.5 -7.2 81 2.7 -5.8 95 10 327.6 328.4 294.9 342.5 4.46 14 494 5995 -5.3 -6.9 88 1.6 -6.1 95 10 327.7 328.6 295.1 343.1 4.62 15 480 6221 -6.5 -10.0 76 3.5 -8.1 96 10 328.9 329.7 294.7 341.6 3.73 16 470 6386 -7.7 -8.3 95 0.6 -8.0 98 9 329.4 330.3 295.3 344.1 4.36 17 465 6469 -8.3 -10.4 85 2.1 -9.2 99 9 329.7 330.4 294.9 342.3 3.73 18 449 6741 -8.7 -13.4 69 4.7 -10.6 101 9 332.5 333.1 295.0 343.0 3.03 19 439 6916 -9.9 -11.7 87 1.8 -10.7 103 8 333.1 333.9 295.6 345.4 3.56 20 429 7094 -10.7 -15.3 69 4.6 -12.5 105 8 334.3 334.9 295.2 343.8 2.71 21 408 7479 -13.1 -15.5 82 2.4 -14.0 109 7 336.1 336.6 295.7 345.9 2.81 22 400 7630 -14.1 -17.9 73 3.8 -15.4 110 7 336.7 337.1 295.5 345.0 2.34 23 394 7744 -14.7 -19.1 69 4.4 -16.2 110 7 337.3 337.8 295.5 345.0 2.14 24 388 7861 -14.7 -22.7 51 8.0 -17.2 110 8 338.8 339.1 295.4 344.6 1.59 25 360 8422 -19.5 -20.6 91 1.1 -19.8 110 10 339.7 340.2 296.0 347.2 2.06 26 330 9062 -24.1 -24.9 93 0.8 -24.3 110 12 342.0 342.3 296.1 347.6 1.54 27 300 9750 -29.1 -30.6 87 1.5 -29.4 95 13 344.4 344.6 296.2 348.2 1.00 28 289 10016 -31.3 -31.5 98 0.2 -31.3 92 13 344.9 345.1 296.3 348.5 0.95 29 260 10759 -36.1 -42.1 54 6.0 -36.8 83 12 348.5 348.5 296.6 349.9 0.36 30 250 11030 -38.5 -42.3 67 3.8 -38.9 75 13 348.8 348.9 296.7 350.3 0.37 31 233 11509 -42.5 -44.6 80 2.1 -42.7 69 15 349.9 349.9 296.9 351.1 0.31 32 200 12520 -51.1 -54.5 67 3.4 -51.2 60 19 351.8 351.9 297.1 352.3 0.12 33 156 14082 -65.3 -70.1 51 4.8 -65.4 50 20 353.6 353.6 297.4 353.7 0.02 34 150 14320 -66.9 -75.9 27 9.0 -67.0 50 18 354.8 354.8 297.7 354.9 0.01 35 148 14401 -67.1 -80.1 14 13.0 -67.2 51 18 355.9 355.9 297.9 355.9 0.00 36 147 14442 -66.7 -80.7 12 14.0 -66.8 52 18 357.2 357.2 298.1 357.3 0.00 37 130 15175 -72.1 -80.1 29 8.0 -72.1 64 18 360.3 360.3 298.8 360.4 0.01 38 124 15454 -70.3 -83.3 13 13.0 -70.4 68 19 368.5 368.5 300.3 368.5 0.00 39 114 15948 -74.5 -80.5 39 6.0 -74.5 76 21 369.7 369.7 300.5 369.7 0.01 40 100 16700 -79.5 -85.5 36 6.0 -79.5 95 27 374.1 374.1 301.3 374.1 0.00 41 93 17110 -81.5 -86.5 42 5.0 -81.5 85 27 378.0 378.0 301.9 378.0 0.00 42 83 17748 -82.7 -88.7 35 6.0 -82.7 82 29 388.1 388.1 303.5 388.1 0.00 43 71 18620 -82.7 -89.7 29 7.0 -82.7 100 30 405.8 405.8 306.0 405.8 0.00 44 70 18700 -79.9 -88.9 21 9.0 -79.9 105 30 413.4 413.4 306.9 413.5 0.00 45 65 19126 -75.7 -89.7 9 14.0 -75.7 78 25 431.5 431.5 309.0 431.5 0.00 46 60 19590 -76.7 -90.7 9 14.0 -76.7 48 19 439.2 439.2 309.8 439.2 0.00 47 53 20318 -70.9 -90.9 4 20.0 -71.1 104 12 468.5 468.5 312.5 468.5 0.00 48 51 20549 -67.9 -91.9 2 24.0 -68.1 134 10 480.7 480.7 313.5 480.8 0.00 49 50 20670 -61.3 -90.3 1 29.0 -61.8 150 9 499.0 499.0 314.9 499.0 0.00 50 47 21054 -59.5 -88.5 1 29.0 -60.2 66 5 512.3 512.3 315.8 512.3 0.00 51 41 21903 -61.7 -88.7 2 27.0 -62.3 46 8 527.2 527.2 316.8 527.2 0.00 52 37 22543 -57.7 -87.7 1 30.0 -58.7 93 14 553.1 553.1 318.3 553.2 0.00 53 30 23860 -58.9 -87.9 1 29.0 -59.9 80 21 584.1 584.1 319.9 584.1 0.01 54 28 24292 -59.9 -88.9 1 29.0 -60.9 83 22 592.9 592.9 320.3 593.0 0.01 55 21 26108 -55.3 -87.3 1 32.0 -57.3 94 34 657.7 657.7 323.0 657.7 0.01 56 20 26419 -55.7 -86.7 1 31.0 -57.8 96 37 665.7 665.7 323.3 665.8 0.01 TRP 93 17110 -81.5 -86.5 42 5.0 -81.5 85 27 378.0 378.0 301.9 378.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5818.00 m Freezing level: 548.40 mb = 5169.17 m = 16959.02 ft Wetbulb zero: 565.68 mb = 4914.61 m = 16123.84 ft Precipitable water: 2.42 inches Sfc-500 mean rel hum: 75.92 % Est. max temperature: 34.54 C = 94.17 F Sfc-Lift cond lev (LCL): 983.37 mb = 230.45 m = 756.07 ft T: 26.72 C 700-500 lapse rate: 5.73 C/km ThetaE index: 13.09 C Layer 850.0- 677.0 mb Conv cond level (CCL): 835.64 mb = 1654.02 m = 5426.50 ft Mean mixing ratio: 17.20 g/kg Conv temperature: 35.62 C = 96.11 F Cap Strength: 2.47 C Lifted Index: -2.70 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.46 C Lifted Index @700 mb: -0.25 C Showalter Index: -1.18 C Risk: Thunderstorms probable Total Totals Index: 45.50 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.70 C Cross Totals Index: 20.80 C K Index: 36.00 Risk: > 80 % chance of thunderstorms Sweat Index: 225.60 Risk: None Energy Index: -1.32 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 677.78 J/kg Max Up Vert Vel: 36.82 m/s Conv Inhibition (B-): 102.26 J/kg Cap Strength: 2.47 C Lift Cond Lev (LCL): 906.08 mb = 951.36 m = 3121.21 ft Lev Free Conv (LFC): 711.08 mb = 3028.28 m = 9935.18 ft Equ Level (EL): 681.08 mb = 3390.80 m = 11124.55 ft B at Equ Level: 24.25 J/kg Max Parcel Lev (MPL): 101.08 mb = 16638.25 m = 54586.78 ft Wind level data Storm motion: 152 at 7 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 1009 4 40 3 -1.9 -2.3 | 352 8 1.2 -8.1 1 1000 82 45 4 -2.8 -2.8 | 358 9 0.3 -8.6 2 975 305 50 6 -4.6 -3.9 | 9 10 -1.5 -9.6 3 942 610 65 5 -4.5 -2.1 | 10 8 -1.4 -7.9 4 925 771 75 7 -6.8 -1.8 | 26 8 -3.7 -7.6 5 910 914 80 7 -6.9 -1.2 | 29 8 -3.8 -7.0 6 850 1509 115 10 -9.1 4.2 | 76 6 -6.0 -1.5 7 849 1524 115 10 -9.1 4.2 | 76 6 -6.0 -1.5 8 790 2134 120 12 -10.4 6.0 | 92 7 -7.3 0.2 9 709 3048 135 12 -8.5 8.5 | 117 6 -5.4 2.7 10 700 3162 145 12 -6.9 9.8 | 137 6 -3.8 4.1 11 659 3658 150 11 -5.5 9.5 | 147 4 -2.4 3.8 12 589 4572 135 7 -4.9 4.9 | 66 2 -1.9 -0.8 13 567 4877 140 4 -2.6 3.1 | 349 3 0.5 -2.7 14 526 5486 115 6 -5.4 2.5 | 36 4 -2.3 -3.2 15 500 5900 95 10 -10.0 0.9 | 55 8 -6.9 -4.9 16 488 6096 95 10 -10.0 0.9 | 55 8 -6.9 -4.9 17 401 7620 110 7 -6.6 2.4 | 46 5 -3.5 -3.4 18 400 7630 110 7 -6.6 2.4 | 46 5 -3.5 -3.4 19 326 9144 110 12 -11.3 4.1 | 79 8 -8.2 -1.7 20 300 9750 95 13 -13.0 1.1 | 65 11 -9.9 -4.6 21 263 10668 85 12 -12.0 -1.0 | 52 11 -8.9 -6.8 22 250 11030 75 13 -12.6 -3.4 | 46 13 -9.5 -9.1 23 210 12192 60 19 -16.5 -9.5 | 41 20 -13.4 -15.3 24 200 12520 60 19 -16.5 -9.5 | 41 20 -13.4 -15.3 25 165 13716 50 23 -17.6 -14.8 | 35 25 -14.5 -20.5 26 150 14320 50 18 -13.8 -11.6 | 32 20 -10.7 -17.3 27 128 15240 65 18 -16.3 -7.6 | 45 19 -13.2 -13.4 28 104 16459 85 24 -23.9 -2.1 | 69 22 -20.8 -7.9 29 100 16700 95 27 -26.9 2.4 | 82 24 -23.8 -3.4 30 93 17110 85 27 -26.9 -2.4 | 71 25 -23.8 -8.1 31 75 18288 80 30 -29.5 -5.2 | 67 29 -26.5 -11.0 32 70 18700 105 30 -29.0 7.8 | 94 26 -25.9 2.0 33 58 19812 35 16 -9.2 -13.1 | 18 20 -6.1 -18.9 34 50 20670 150 9 -4.5 7.8 | 145 2 -1.4 2.0 35 45 21336 5 2 -0.2 -2.0 | 339 8 2.9 -7.8 36 35 22860 115 17 -15.4 7.2 | 97 12 -12.3 1.4 37 30 23860 80 21 -20.7 -3.6 | 62 20 -17.6 -9.4 38 26 24384 85 23 -22.9 -2.0 | 69 21 -19.8 -7.8 39 18 25908 100 41 -40.4 7.1 | 92 37 -37.3 1.4 40 16 26518 115 42 -38.1 17.7 | 109 37 -35.0 12.0 Wind Parameters Mean winds (0-6000m): 121.8 at 8.7 knts Storm direction: 151.8 at 6.5 knts Shear (0-3000m) pos: 2.2 neg: 0.0 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): 123.7 deg Storm rel helicity (0-3000m) pos: 31.2 neg: 0.0 tot: 31.2 m^2/s^2 ave: 10.4 10^-3 m/s^2 rel: 0.85 Storm rel vorticity (0-3000m) horiz: 3.2 stream: 2.7 10^-3/s Energy-Hel index: 0.11 Bulk Rich Number: 69.87 Bulk Shear: 9.70 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 50 5 5 9| 2.8 0.0 2.8| 6.7 0.0 6.7 13.5 0.67| 4.4 2.9 1000 63 6 13 9| 3.0 0.0 3.0| 14.0 0.0 14.0 14.0 0.74| 4.3 3.2 1500 81 7 27 8| 3.3 0.0 3.3| 22.9 0.0 22.9 15.3 0.82| 4.6 3.8 2000 94 8 42 7| 2.9 0.0 2.9| 25.7 0.0 25.7 12.8 0.83| 3.9 3.3 2500 103 9 54 7| 2.5 0.0 2.5| 28.5 0.0 28.5 11.4 0.84| 3.5 2.9 3000 109 9 64 6| 2.2 0.0 2.2| 31.2 0.0 31.2 10.4 0.85| 3.2 2.7 4000 121 10 81 5| 1.6 0.3 1.9| 35.6 -1.1 34.5 8.6 0.73| 3.1 2.3 5000 124 9 81 5| 1.3 0.7 2.0| 35.9 -4.0 31.9 6.4 0.43| 3.1 1.3 6000 122 9 75 4| 1.1 0.8 1.9| 39.6 -4.0 35.7 5.9 0.44| 3.2 1.4 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250517.00.gif