UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025051512.upa.cvt Date: 1200Z 15 MAY 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:1200Z 15 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 1008 4 28.0 25.0 84 3.0 25.8 40 4 300.5 304.2 298.7 359.8 20.16 1 1000 76 26.2 24.5 90 1.7 25.0 45 2 299.4 302.9 298.1 357.0 19.71 2 993 138 26.0 23.9 88 2.1 24.5 74 2 299.8 303.2 297.8 355.8 19.13 3 963 410 27.6 20.6 66 7.0 22.6 140 2 304.0 307.0 297.0 351.8 16.06 4 925 767 24.8 20.1 75 4.7 21.4 115 5 304.7 307.7 297.3 353.1 16.22 5 850 1505 19.6 17.3 87 2.3 18.0 130 6 306.7 309.4 296.9 351.1 14.78 6 835 1659 18.2 17.0 93 1.2 17.4 131 7 306.8 309.5 296.9 351.2 14.76 7 700 3155 10.6 7.9 83 2.7 8.9 135 5 314.2 316.1 295.3 344.1 9.60 8 661 3631 7.8 4.9 82 2.9 6.1 149 6 316.3 317.9 294.8 342.2 8.25 9 535 5352 -0.7 -5.7 69 5.0 -3.2 232 5 325.8 326.7 294.6 341.3 4.68 10 530 5427 -0.9 -4.6 76 3.7 -2.8 241 5 326.5 327.5 295.1 343.5 5.14 11 500 5890 -4.3 -6.1 87 1.8 -5.2 235 8 327.8 328.8 295.3 344.0 4.86 12 475 6292 -6.9 -8.6 88 1.7 -7.7 249 8 329.4 330.3 295.2 343.6 4.21 13 457 6593 -7.7 -8.0 98 0.3 -7.8 280 7 332.1 333.0 296.1 347.7 4.59 14 448 6748 -7.9 -9.4 89 1.5 -8.6 296 7 333.7 334.6 296.2 348.1 4.19 15 400 7620 -13.1 -15.5 82 2.4 -14.0 25 6 338.0 338.6 296.2 348.1 2.86 16 386 7892 -14.7 -17.9 77 3.2 -15.9 30 5 339.3 339.8 296.2 348.0 2.42 17 385 7911 -14.7 -18.1 75 3.4 -15.9 29 5 339.6 340.1 296.2 348.1 2.39 18 313 9452 -25.3 -27.2 84 1.9 -25.8 42 6 345.5 345.8 296.7 350.5 1.31 19 300 9760 -27.5 -30.3 77 2.8 -28.1 80 6 346.6 346.8 296.7 350.5 1.03 20 250 11040 -37.5 -41.3 68 3.8 -37.9 75 5 350.3 350.4 297.1 352.0 0.41 21 232 11551 -41.5 -45.2 67 3.7 -41.8 47 4 351.8 351.9 297.3 353.0 0.29 22 200 12540 -50.1 -54.3 61 4.2 -50.3 20 4 353.4 353.5 297.5 353.9 0.12 23 180 13218 -56.3 -61.1 55 4.8 -56.4 17 7 354.1 354.1 297.5 354.4 0.06 24 150 14350 -65.9 -70.8 50 4.9 -66.0 35 12 356.6 356.6 298.0 356.6 0.02 25 142 14680 -68.9 -73.9 48 5.0 -68.9 44 13 357.0 357.0 298.1 357.0 0.01 26 124 15480 -74.5 -79.5 46 5.0 -74.5 63 17 360.9 360.9 298.9 360.9 0.01 27 103 16543 -80.7 -85.0 48 4.3 -80.7 75 22 368.7 368.7 300.3 368.7 0.00 28 100 16710 -79.7 -85.7 36 6.0 -79.7 75 25 373.7 373.7 301.2 373.8 0.00 29 83 17762 -81.1 -88.1 30 7.0 -81.1 75 23 391.3 391.3 304.0 391.4 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5814.00 m Freezing level: 545.38 mb = 5209.87 m = 17092.54 ft Wetbulb zero: 578.59 mb = 4714.33 m = 15466.77 ft Precipitable water: 2.54 inches Sfc-500 mean rel hum: 80.70 % Est. max temperature: 34.01 C = 93.22 F Sfc-Lift cond lev (LCL): 965.60 mb = 386.60 m = 1268.34 ft T: 27.46 C 700-500 lapse rate: 5.45 C/km ThetaE index: 9.84 C Layer 700.0- 530.0 mb Conv cond level (CCL): 849.41 mb = 1510.95 m = 4957.11 ft Mean mixing ratio: 17.06 g/kg Conv temperature: 34.23 C = 93.62 F Cap Strength: 2.34 C Lifted Index: -2.62 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.09 C Lifted Index @700 mb: -0.96 C Showalter Index: -1.74 C Risk: Thunderstorms probable Total Totals Index: 45.50 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.90 C Cross Totals Index: 21.60 C K Index: 38.50 Risk: > 80 % chance of thunderstorms Sweat Index: 227.60 Risk: None Energy Index: -1.46 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 515.83 J/kg Max Up Vert Vel: 32.12 m/s Conv Inhibition (B-): 61.97 J/kg Cap Strength: 2.34 C Lift Cond Lev (LCL): 894.75 mb = 1057.23 m = 3468.55 ft Lev Free Conv (LFC): 809.75 mb = 1919.14 m = 6296.31 ft Equ Level (EL): 219.75 mb = 11912.87 m = 39083.75 ft B at Equ Level: 515.28 J/kg Max Parcel Lev (MPL): 99.75 mb = 16724.31 m = 54869.11 ft Wind level data Storm motion: 180 at 4 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 40 4 -2.6 -3.1 | 19 8 -2.6 -7.4 1 1000 76 45 2 -1.4 -1.4 | 14 6 -1.4 -5.7 2 975 305 150 1 -0.5 0.9 | 9 3 -0.5 -3.5 3 942 610 120 4 -3.5 2.0 | 56 4 -3.5 -2.3 4 925 767 115 5 -4.5 2.1 | 64 5 -4.6 -2.2 5 910 914 115 5 -4.5 2.1 | 64 5 -4.6 -2.2 6 850 1505 130 6 -4.6 3.9 | 84 5 -4.6 -0.5 7 848 1524 130 6 -4.6 3.9 | 84 5 -4.6 -0.5 8 789 2134 135 10 -7.1 7.1 | 111 8 -7.1 2.8 9 709 3048 135 5 -3.5 3.5 | 78 4 -3.6 -0.8 10 700 3155 135 5 -3.5 3.5 | 78 4 -3.6 -0.8 11 658 3658 150 6 -3.0 5.2 | 106 3 -3.0 0.9 12 588 4572 160 6 -2.1 5.6 | 122 2 -2.1 1.3 13 566 4877 175 4 -0.3 4.0 | 48 1 -0.4 -0.3 14 525 5486 250 5 4.7 1.7 | 299 5 4.7 -2.6 15 500 5890 235 8 6.6 4.6 | 268 7 6.5 0.3 16 487 6096 230 8 6.1 5.1 | 262 6 6.1 0.8 17 400 7620 25 6 -2.5 -5.4 | 15 10 -2.6 -9.8 18 400 7620 35 5 -2.9 -4.1 | 19 9 -2.9 -8.4 19 326 9144 5 6 -0.5 -6.0 | 3 10 -0.5 -10.3 20 300 9760 80 6 -5.9 -1.0 | 48 8 -5.9 -5.4 21 264 10668 85 5 -5.0 -0.4 | 46 7 -5.0 -4.8 22 250 11040 75 5 -4.8 -1.3 | 41 7 -4.9 -5.6 23 211 12192 10 3 -0.5 -3.0 | 4 7 -0.5 -7.3 24 200 12540 20 4 -1.4 -3.8 | 10 8 -1.4 -8.1 25 166 13716 15 9 -2.3 -8.7 | 10 13 -2.4 -13.0 26 150 14350 35 12 -6.9 -9.8 | 26 16 -6.9 -14.1 27 129 15240 60 16 -13.9 -8.0 | 48 19 -13.9 -12.3 28 104 16459 75 21 -20.3 -5.4 | 64 23 -20.3 -9.8 29 100 16710 75 25 -24.1 -6.5 | 66 26 -24.2 -10.8 30 79 17983 75 22 -21.3 -5.7 | 65 24 -21.3 -10.0 Wind Parameters Mean winds (0-6000m): 150.3 at 5.8 knts Storm direction: 180.3 at 4.3 knts Shear (0-3000m) pos: 1.4 neg: 0.3 tot: 1.7 10-3/s Storm rel Dir Shear (0-3000m): 61.3 deg Storm rel helicity (0-3000m) pos: 9.8 neg: -4.9 tot: 5.0 m^2/s^2 ave: 1.7 10^-3 m/s^2 rel: 0.23 Storm rel vorticity (0-3000m) horiz: 3.3 stream: 0.7 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 160.27 Bulk Shear: 3.22 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 95 2 25 5| 5.1 0.0 5.1| 2.0 -1.2 0.7 1.4 0.17| 7.0 1.2 1000 112 3 44 4| 2.6 1.2 3.8| 3.8 -1.2 2.6 2.6 0.31| 4.8 1.5 1500 118 4 56 4| 2.2 0.8 3.0| 5.7 -1.2 4.5 3.0 0.40| 3.7 1.5 2000 124 5 69 4| 2.3 0.6 3.0| 9.1 -1.2 7.8 3.9 0.47| 3.6 1.7 2500 127 6 80 5| 1.7 0.5 2.2| 9.8 -2.7 7.2 2.9 0.37| 3.4 1.3 3000 129 6 83 5| 1.4 0.3 1.7| 9.8 -4.9 5.0 1.7 0.23| 3.3 0.7 4000 133 6 86 4| 1.3 0.2 1.5| 11.6 -5.1 6.5 1.6 0.28| 2.8 0.8 5000 139 6 90 4| 1.0 0.2 1.1| 11.9 -5.3 6.6 1.3 0.17| 2.7 0.5 6000 150 6 103 3| 0.9 0.2 1.0| 13.0 -10.8 2.3 0.4 0.06| 3.0 0.2 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250515.12.gif