UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025060912.upa.cvt Date: 1200Z 9 JUN 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:1200Z 9 JUN 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 1003 4 29.0 26.0 84 3.0 26.7 210 4 301.9 305.9 299.8 365.8 21.55 1 1000 32 29.0 24.9 79 4.1 25.9 215 7 302.1 305.9 299.1 362.0 20.21 2 925 723 22.8 22.3 97 0.5 22.5 225 10 302.6 306.1 298.2 357.8 18.63 3 910 866 21.8 21.6 99 0.2 21.7 229 10 303.0 306.4 298.1 356.8 18.13 4 850 1458 18.8 18.8 100 0.0 18.8 250 12 305.8 308.9 297.6 354.6 16.28 5 831 1652 17.6 17.4 99 0.2 17.5 249 13 306.6 309.4 297.1 352.3 15.22 6 816 1809 18.2 15.2 83 3.0 16.1 248 12 308.8 311.3 296.5 349.5 13.44 7 744 2598 15.2 10.3 73 4.9 12.0 260 9 313.8 315.8 295.9 346.8 10.64 8 700 3113 12.2 7.3 72 4.9 9.2 280 8 316.0 317.8 295.5 344.9 9.21 9 625 4051 5.6 3.8 88 1.8 4.5 279 7 318.9 320.4 295.4 344.5 8.07 10 543 5192 0.8 -4.1 70 4.9 -1.7 360 3 326.2 327.3 295.1 343.5 5.21 11 500 5850 -3.3 -6.5 78 3.2 -4.9 75 4 329.0 330.0 295.5 344.8 4.71 12 457 6559 -8.1 -10.0 86 1.9 -8.9 71 5 331.6 332.4 295.5 344.9 3.92 13 434 6961 -9.7 -15.7 62 6.0 -12.0 63 6 334.5 335.0 295.2 343.6 2.59 14 408 7438 -12.7 -14.6 86 1.9 -13.5 53 6 336.6 337.2 296.0 347.2 3.02 15 400 7590 -13.3 -15.7 82 2.4 -14.2 50 6 337.7 338.3 296.1 347.7 2.82 16 382 7938 -15.1 -17.7 80 2.6 -16.0 51 7 339.8 340.3 296.4 348.7 2.49 17 377 8037 -15.7 -21.7 60 6.0 -17.6 53 7 340.3 340.7 295.9 346.8 1.79 18 371 8158 -16.5 -20.2 73 3.7 -17.7 55 7 340.8 341.2 296.3 348.3 2.07 19 359 8404 -17.3 -27.3 41 10.0 -20.0 60 8 342.9 343.2 296.0 347.2 1.13 20 354 8508 -17.9 -26.9 45 9.0 -20.3 62 8 343.5 343.8 296.2 348.0 1.19 21 339 8830 -20.1 -26.1 59 6.0 -21.7 69 9 344.8 345.1 296.6 349.8 1.34 22 300 9720 -27.5 -35.5 46 8.0 -28.9 80 11 346.6 346.8 296.4 349.0 0.62 23 291 9939 -28.9 -39.9 34 11.0 -30.5 347.7 347.8 296.5 349.3 0.41 24 270 10469 -33.5 -37.3 69 3.8 -34.1 348.5 348.6 296.8 350.8 0.57 TRP WND Sounding variables and indices 1000-500 mb thick: 5818.00 m Freezing level: 534.61 mb = 5320.24 m = 17454.65 ft Wetbulb zero: 565.73 mb = 4859.22 m = 15942.14 ft Precipitable water: 2.59 inches Sfc-500 mean rel hum: 82.20 % Est. max temperature: 32.81 C = 91.05 F Sfc-Lift cond lev (LCL): 960.92 mb = 385.30 m = 1264.09 ft T: 25.83 C 700-500 lapse rate: 5.66 C/km ThetaE index: 22.32 C Layer 1000.0- 500.0 mb Conv cond level (CCL): 925.15 mb = 721.60 m = 2367.41 ft Mean mixing ratio: 19.20 g/kg Conv temperature: 29.73 C = 85.51 F Cap Strength: 0.11 C Lifted Index: -3.50 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.97 C Lifted Index @700 mb: -0.83 C Showalter Index: -1.91 C Risk: Thunderstorms probable Total Totals Index: 44.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.10 C Cross Totals Index: 22.10 C K Index: 36.00 Risk: > 80 % chance of thunderstorms Sweat Index: 253.60 Risk: None Energy Index: -2.00 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 940.89 J/kg Max Up Vert Vel: 43.38 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 0.11 C Lift Cond Lev (LCL): 927.17 mb = 702.27 m = 2303.99 ft Lev Free Conv (LFC): 922.17 mb = 749.82 m = 2460.01 ft Wind level data Storm motion: 286 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 1003 4 210 4 2.0 3.5 | 145 6 -3.6 5.1 1 1000 32 215 7 4.0 5.7 | 168 8 -1.6 7.4 2 970 305 220 10 6.4 7.7 | 185 9 0.8 9.3 3 937 610 225 10 7.1 7.1 | 190 9 1.5 8.7 4 925 723 225 10 7.1 7.1 | 190 9 1.5 8.7 5 905 914 230 10 7.7 6.4 | 194 8 2.1 8.1 6 850 1458 250 12 11.3 4.1 | 225 8 5.7 5.8 7 843 1524 250 13 12.2 4.4 | 227 9 6.6 6.1 8 785 2134 245 11 10.0 4.6 | 215 8 4.4 6.3 9 705 3048 275 8 8.0 -0.7 | 248 3 2.4 1.0 10 700 3113 280 8 7.9 -1.4 | 263 2 2.3 0.3 11 655 3658 275 8 8.0 -0.7 | 248 3 2.4 1.0 12 585 4572 285 5 4.8 -1.3 | 115 1 -0.8 0.4 13 564 4877 330 4 2.0 -3.5 | 63 4 -3.6 -1.8 14 523 5486 30 2 -1.0 -1.7 | 89 7 -6.6 -0.1 15 500 5850 75 4 -3.9 -1.0 | 94 9 -9.5 0.6 16 484 6096 80 5 -4.9 -0.9 | 94 11 -10.5 0.8 17 400 7590 50 6 -4.6 -3.9 | 78 10 -10.2 -2.2 18 398 7620 45 6 -4.2 -4.2 | 75 10 -9.8 -2.6 19 324 9144 75 10 -9.7 -2.6 | 86 15 -15.3 -0.9 20 300 9720 80 11 -10.8 -1.9 | 89 16 -16.4 -0.3 Wind Parameters Mean winds (0-6000m): 256.4 at 7.8 knts Storm direction: 286.4 at 5.8 knts Shear (0-3000m) pos: 1.5 neg: 0.3 tot: 1.8 10-3/s Storm rel Dir Shear (0-3000m): 100.8 deg Storm rel helicity (0-3000m) pos: 27.3 neg: -3.5 tot: 23.8 m^2/s^2 ave: 7.9 10^-3 m/s^2 rel: 0.61 Storm rel vorticity (0-3000m) horiz: 3.5 stream: 2.1 10^-3/s Energy-Hel index: 0.14 Bulk Rich Number: 242.39 Bulk Shear: 3.88 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 ------------------------------------------------------------------------------- 500 219 9 181 9| 6.4 0.0 6.4| 11.5 0.0 11.5 23.1 0.86| 6.9 6.0 1000 223 9 186 9| 3.5 0.0 3.5| 15.2 0.0 15.2 15.2 0.86| 4.4 3.8 1500 231 10 196 8| 3.4 0.0 3.4| 23.8 0.0 23.8 15.9 0.89| 4.4 3.9 2000 236 11 203 8| 2.6 0.4 3.0| 23.8 -2.9 20.9 10.4 0.70| 3.7 2.6 2500 239 11 206 8| 1.9 0.3 2.2| 25.8 -3.5 22.3 8.9 0.63| 3.6 2.3 3000 242 10 209 7| 1.5 0.3 1.8| 27.3 -3.5 23.8 7.9 0.61| 3.5 2.1 4000 249 10 214 6| 1.0 0.2 1.2| 27.8 -4.0 23.8 6.0 0.54| 3.0 1.6 5000 254 9 215 5| 0.7 0.2 0.9| 28.4 -4.5 23.9 4.8 0.35| 3.0 1.1 6000 256 8 209 4| 0.6 0.1 0.7| 33.7 -4.7 29.0 4.8 0.37| 3.1 1.1 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250609.12.gif