UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101100.upa.cvt Date: 0000Z 11 OCT 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 11 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 1007 4 25.4 24.7 96 0.7 24.9 0 0 298.0 301.6 297.8 355.6 19.81 1 1004 31 23.8 23.3 97 0.5 23.5 9 3 296.6 299.9 296.5 349.3 18.23 2 1000 66 23.8 23.1 96 0.7 23.3 20 8 297.0 300.2 296.5 349.2 18.07 3 986 190 25.0 22.7 87 2.3 23.3 33 7 299.4 302.6 297.0 351.6 17.89 4 925 751 22.8 18.7 78 4.1 19.9 90 7 302.6 305.4 295.8 346.5 14.83 5 850 1485 18.6 15.0 80 3.6 16.2 115 8 305.6 308.0 295.2 343.7 12.72 6 757 2471 13.2 7.2 67 6.0 9.6 80 12 310.1 311.7 293.3 336.0 8.45 7 700 3127 9.8 5.1 73 4.7 7.0 70 15 313.3 314.8 293.8 337.9 7.90 8 670 3489 7.4 4.6 82 2.8 5.8 77 17 314.6 316.1 294.2 339.5 7.97 9 508 5724 -3.1 -9.1 63 6.0 -5.8 97 18 327.8 328.5 294.4 340.5 3.78 10 501 5834 -3.9 -9.9 63 6.0 -6.6 95 19 328.1 328.8 294.4 340.3 3.60 11 500 5850 -3.9 -9.9 63 6.0 -6.6 95 19 328.3 329.0 294.4 340.5 3.61 12 451 6659 -9.3 -10.9 88 1.6 -10.0 96 15 331.3 332.1 295.3 343.9 3.69 13 446 6745 -9.7 -14.6 67 4.9 -11.6 96 15 331.9 332.4 294.7 341.5 2.77 14 407 7448 -14.5 -16.4 85 1.9 -15.2 104 12 334.5 335.0 295.2 343.6 2.61 15 400 7580 -14.7 -18.4 73 3.7 -16.0 105 11 335.9 336.3 295.3 343.8 2.24 16 390 7771 -15.9 -20.8 66 4.9 -17.4 106 12 336.8 337.1 295.1 343.5 1.87 17 336 8874 -23.5 -28.2 65 4.7 -24.6 117 13 341.0 341.3 295.6 345.2 1.12 18 320 9227 -26.3 -29.5 74 3.2 -27.0 119 14 341.9 342.2 295.7 345.8 1.04 19 314 9364 -26.9 -31.9 63 5.0 -27.9 118 15 343.0 343.1 295.8 346.2 0.84 20 300 9690 -29.5 -34.5 62 5.0 -30.3 115 18 343.8 343.9 295.8 346.4 0.68 21 270 10436 -35.7 -39.7 67 4.0 -36.2 123 27 345.3 345.4 296.0 347.1 0.45 22 250 10970 -39.5 -47.5 42 8.0 -40.2 125 34 347.3 347.4 296.3 348.2 0.21 23 245 11108 -40.7 -49.7 37 9.0 -41.3 123 34 347.6 347.6 296.3 348.3 0.17 24 210 12134 -49.9 -66.9 12 17.0 -50.3 111 30 348.8 348.9 296.4 348.9 0.02 25 200 12450 -52.7 -67.7 15 15.0 -53.0 95 32 349.3 349.3 296.5 349.4 0.02 26 177 13226 -60.3 -65.0 54 4.7 -60.4 95 40 349.3 349.3 296.5 349.4 0.03 27 172 13405 -61.5 -66.5 51 5.0 -61.6 95 42 350.2 350.2 296.7 350.3 0.03 28 169 13514 -62.5 -73.5 21 11.0 -62.6 95 44 350.3 350.3 296.7 350.3 0.01 29 152 14160 -67.9 -73.9 42 6.0 -67.9 108 53 351.8 351.8 297.0 351.8 0.01 30 150 14240 -68.5 -74.5 42 6.0 -68.5 110 54 352.1 352.1 297.1 352.1 0.01 31 139 14691 -71.9 -81.9 21 10.0 -71.9 105 67 353.9 353.9 297.5 353.9 0.00 32 129 15126 -74.8 -83.3 26 8.5 -74.8 100 79 356.3 356.3 298.0 356.3 0.00 33 126 15262 -75.7 -83.7 27 8.0 -75.7 100 76 357.1 357.1 298.1 357.1 0.00 34 109 16090 -79.1 -85.1 37 6.0 -79.1 105 46 365.8 365.8 299.8 365.8 0.00 35 100 16580 -78.1 -84.1 37 6.0 -78.1 90 67 376.8 376.8 301.7 376.8 0.00 36 74 18315 -74.7 -86.7 14 12.0 -74.7 62 18 417.9 417.9 307.4 417.9 0.00 TRP 109 16090 -79.1 -85.1 37 6.0 -79.1 105 46 365.8 365.8 299.8 365.8 0.00 WND 129 15126 -74.8 -83.3 26 8.5 -74.8 100 79 356.3 356.3 298.0 356.3 0.00 Sounding variables and indices 1000-500 mb thick: 5784.00 m Freezing level: 555.83 mb = 5064.52 m = 16615.67 ft Wetbulb zero: 589.54 mb = 4522.27 m = 14836.66 ft Precipitable water: 2.20 inches Sfc-500 mean rel hum: 74.79 % Est. max temperature: 32.80 C = 91.04 F Sfc-Lift cond lev (LCL): 997.28 mb = 89.95 m = 295.12 ft T: 24.03 C 700-500 lapse rate: 5.03 C/km ThetaE index: 15.63 C Layer 925.0- 700.0 mb Conv cond level (CCL): 858.20 mb = 1401.63 m = 4598.46 ft Mean mixing ratio: 16.39 g/kg Conv temperature: 32.75 C = 90.95 F Cap Strength: 2.18 C Lifted Index: -0.55 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.52 C Lifted Index @700 mb: -0.47 C Showalter Index: 1.41 C Risk: Showers probable Total Totals Index: 41.40 C Risk: None Vertical Totals Index: 22.50 C Cross Totals Index: 18.90 C K Index: 32.80 Risk: 60-80 % chance of thunderstorms Sweat Index: 215.00 Risk: None Energy Index: -0.68 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 281.05 J/kg Max Up Vert Vel: 23.71 m/s Conv Inhibition (B-): 64.02 J/kg Cap Strength: 2.18 C Lift Cond Lev (LCL): 916.64 mb = 829.80 m = 2722.41 ft Lev Free Conv (LFC): 751.64 mb = 2530.68 m = 8302.66 ft Equ Level (EL): 251.64 mb = 10924.63 m = 35841.54 ft B at Equ Level: 280.06 J/kg Max Parcel Lev (MPL): 121.64 mb = 15463.36 m = 50732.19 ft Wind level data Storm motion: 116 at 10 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 1007 4 0 0 -0.0 -0.0 | 296 10 8.6 -4.1 1 1000 66 20 8 -2.7 -7.5 | 333 13 5.8 -11.6 2 973 305 45 6 -4.2 -4.2 | 333 9 4.3 -8.3 3 940 610 70 7 -6.6 -2.4 | 343 7 2.0 -6.5 4 925 751 90 7 -7.0 0.0 | 339 4 1.6 -4.1 5 908 914 115 8 -7.3 3.4 | 298 2 1.3 -0.7 6 850 1485 115 8 -7.3 3.4 | 298 2 1.3 -0.7 7 846 1524 115 8 -7.3 3.4 | 298 2 1.3 -0.7 8 787 2134 85 10 -10.0 -0.9 | 16 5 -1.4 -5.0 9 707 3048 70 16 -15.0 -5.5 | 34 12 -6.5 -9.6 10 700 3127 70 15 -14.1 -5.1 | 31 11 -5.5 -9.2 11 656 3658 80 18 -17.7 -3.1 | 52 12 -9.2 -7.2 12 586 4572 85 15 -14.9 -1.3 | 50 8 -6.4 -5.4 13 564 4877 90 13 -13.0 0.0 | 47 6 -4.4 -4.1 14 523 5486 100 15 -14.8 2.6 | 76 6 -6.2 -1.5 15 500 5850 95 19 -18.9 1.7 | 77 11 -10.4 -2.4 16 484 6096 90 18 -18.0 0.0 | 67 10 -9.4 -4.1 17 400 7580 105 11 -10.6 2.8 | 59 2 -2.1 -1.2 18 398 7620 105 12 -11.6 3.1 | 72 3 -3.0 -1.0 19 323 9144 120 13 -11.3 6.5 | 132 4 -2.7 2.4 20 300 9690 115 18 -16.3 7.6 | 114 8 -7.7 3.5 21 261 10668 125 30 -24.6 17.2 | 129 21 -16.0 13.1 22 250 10970 125 34 -27.9 19.5 | 129 25 -19.3 15.4 23 208 12192 110 30 -28.2 10.3 | 107 21 -19.6 6.2 24 200 12450 95 32 -31.9 2.8 | 87 23 -23.3 -1.3 25 163 13716 95 46 -45.8 4.0 | 90 37 -37.3 -0.1 26 150 14240 110 54 -50.7 18.5 | 109 45 -42.2 14.4 27 129 15126 100 79 -77.8 13.7 | 98 70 -69.2 9.6 28 126 15240 100 77 -75.8 13.4 | 98 68 -67.3 9.3 29 109 16090 105 46 -44.4 11.9 | 102 37 -35.9 7.8 30 102 16459 95 49 -48.8 4.3 | 90 40 -40.2 0.2 31 100 16580 90 67 -67.0 0.0 | 86 59 -58.4 -4.1 32 72 18288 60 14 -12.1 -7.0 | 18 12 -3.6 -11.1 33 68 18593 265 11 11.0 1.0 | 279 20 19.5 -3.1 Wind Parameters Mean winds (0-6000m): 85.5 at 12.7 knts Storm direction: 115.5 at 9.5 knts Shear (0-3000m) pos: 1.4 neg: 2.0 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 98.4 deg Storm rel helicity (0-3000m) pos: 28.0 neg: -2.1 tot: 25.9 m^2/s^2 ave: 8.6 10^-3 m/s^2 rel: 0.36 Storm rel vorticity (0-3000m) horiz: 5.4 stream: 1.9 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 23.55 Bulk Shear: 11.94 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 39 6 333 10| 6.8 0.0 6.8| 21.9 -0.8 21.1 42.2 0.64| 13.2 8.4 1000 67 7 341 7| 4.1 0.0 4.1| 22.7 -2.1 20.5 20.5 0.33| 10.2 3.4 1500 87 7 343 5| 2.7 0.0 2.7| 22.7 -2.1 20.5 13.7 0.33| 6.8 2.2 2000 92 8 346 4| 2.1 1.0 3.1| 23.9 -2.1 21.8 10.9 0.38| 6.1 2.3 2500 89 8 356 4| 1.6 1.6 3.2| 26.3 -2.1 24.2 9.7 0.38| 5.7 2.2 3000 85 9 7 5| 1.4 2.0 3.3| 28.0 -2.1 25.9 8.6 0.36| 5.4 1.9 4000 81 11 23 6| 1.4 1.5 2.9| 39.5 -3.5 36.0 9.0 0.40| 4.8 1.9 5000 82 12 30 7| 1.1 1.2 2.3| 40.3 -4.5 35.8 7.2 0.35| 4.3 1.5 6000 86 13 39 7| 1.1 1.3 2.5| 44.6 -7.9 36.6 6.1 0.32| 4.2 1.4 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251011.00.gif