UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100912.upa.cvt Date: 1200Z 9 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 9 OCT 25 Station: VVTS WMO ident: 48900 Latitude: 10.82 Longitude: 106.67 Elevation: 19.00 ------------------------------------------------------------------------------- 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 19 28.0 23.9 78 4.1 25.0 220 3 300.4 303.8 297.8 355.6 18.82 1 1000 79 27.4 23.6 80 3.8 24.6 210 9 300.5 304.0 297.8 355.4 18.65 2 952 514 25.2 18.2 65 7.0 20.3 201 6 302.6 305.1 295.3 343.8 13.95 3 933 692 23.6 21.0 85 2.6 21.8 197 5 302.7 305.8 297.3 353.1 17.02 4 925 767 23.2 20.6 85 2.6 21.3 195 5 303.0 306.1 297.2 352.7 16.74 5 850 1501 17.8 17.3 97 0.5 17.5 230 1 304.8 307.5 296.4 348.9 14.78 6 849 1511 17.8 17.4 98 0.4 17.5 229 1 304.9 307.7 296.5 349.4 14.89 7 783 2200 13.6 12.4 92 1.2 12.8 156 4 307.5 309.7 295.0 342.7 11.64 8 739 2687 11.8 1.8 50 10.0 6.3 104 5 310.7 311.8 291.5 329.0 5.90 9 700 3140 8.8 8.1 95 0.7 8.3 55 7 312.2 314.1 294.8 342.3 9.74 10 685 3319 7.4 7.4 100 0.0 7.4 56 8 312.6 314.4 294.8 341.9 9.48 11 647 3789 5.8 2.4 79 3.4 3.9 60 9 315.9 317.3 293.9 338.2 7.05 12 609 4284 2.8 0.2 83 2.6 1.4 63 10 318.0 319.2 293.9 338.4 6.39 13 587 4581 0.8 -0.7 90 1.5 -0.0 65 11 319.0 320.2 294.0 338.9 6.21 14 569 4832 0.0 -7.0 59 7.0 -3.3 67 12 321.0 321.7 292.8 334.0 3.98 15 557 5003 -0.7 -4.8 74 4.1 -2.7 69 12 322.1 323.0 293.8 337.8 4.81 16 554 5046 -0.7 -9.7 51 9.0 -4.7 69 13 322.6 323.2 292.7 333.6 3.31 17 547 5148 -1.5 -6.1 71 4.6 -3.7 70 13 322.8 323.7 293.7 337.4 4.44 18 529 5414 -3.3 -11.3 54 8.0 -6.7 72 14 323.8 324.4 292.8 334.0 3.05 19 500 5860 -5.5 -6.9 90 1.4 -6.2 75 15 326.3 327.2 294.7 341.5 4.56 20 496 5923 -5.9 -7.2 91 1.3 -6.5 75 15 326.6 327.5 294.7 341.6 4.50 21 458 6543 -8.7 -10.7 85 2.0 -9.6 77 13 330.6 331.4 295.1 343.2 3.70 22 448 6714 -8.9 -15.9 57 7.0 -11.6 77 13 332.5 333.0 294.6 341.1 2.47 23 419 7228 -12.7 -21.7 47 9.0 -15.5 79 12 334.0 334.3 294.3 339.8 1.61 24 404 7505 -14.7 -17.8 77 3.1 -15.8 80 11 334.9 335.4 295.1 343.2 2.34 25 400 7580 -14.3 -20.3 60 6.0 -16.3 80 11 336.4 336.8 295.1 343.2 1.90 26 393 7714 -14.5 -27.5 32 13.0 -18.0 83 11 337.8 338.1 294.7 341.6 1.02 27 385 7869 -15.5 -27.5 35 12.0 -18.7 87 11 338.5 338.7 294.9 342.4 1.04 28 382 7928 -16.3 -21.3 65 5.0 -17.9 89 11 338.2 338.6 295.5 344.8 1.83 29 377 8027 -16.9 -24.9 50 8.0 -19.1 91 11 338.7 339.0 295.2 343.6 1.35 30 376 8046 -17.1 -22.0 66 4.9 -18.6 92 11 338.7 339.1 295.5 345.0 1.75 31 372 8126 -17.7 -29.7 34 12.0 -20.6 94 11 338.9 339.1 294.8 342.2 0.88 32 359 8391 -19.7 -22.9 76 3.2 -20.6 101 11 339.7 340.1 295.7 345.9 1.69 33 316 9326 -25.5 -35.5 39 10.0 -27.3 125 11 344.3 344.4 295.8 346.6 0.59 34 300 9700 -28.9 -36.9 46 8.0 -30.2 135 11 344.6 344.8 295.9 346.8 0.54 35 296 9796 -29.7 -38.7 41 9.0 -31.0 134 12 344.8 344.9 295.9 346.6 0.45 36 285 10066 -32.1 -35.9 69 3.8 -32.7 131 14 345.2 345.3 296.1 347.6 0.63 37 266 10551 -35.9 -42.9 49 7.0 -36.7 125 18 346.5 346.6 296.1 347.8 0.33 38 261 10683 -37.1 -41.9 61 4.8 -37.6 124 19 346.6 346.7 296.2 348.1 0.37 39 250 10980 -39.3 -49.3 34 10.0 -40.1 120 21 347.6 347.7 296.3 348.3 0.17 40 249 11007 -39.5 -56.5 15 17.0 -40.5 120 21 347.7 347.8 296.2 348.1 0.07 41 243 11173 -40.9 -48.9 42 8.0 -41.5 118 21 348.1 348.1 296.4 348.8 0.18 42 227 11631 -45.3 -49.5 63 4.2 -45.6 114 22 348.2 348.2 296.4 349.0 0.18 43 218 11898 -47.5 -56.5 35 9.0 -47.9 111 22 348.8 348.9 296.4 349.2 0.08 44 200 12460 -52.3 -63.3 25 11.0 -52.6 105 23 349.9 350.0 296.7 350.1 0.04 45 187 12893 -56.3 -66.3 27 10.0 -56.5 104 26 350.3 350.3 296.7 350.4 0.03 46 172 13420 -60.7 -74.7 14 14.0 -60.9 102 29 351.5 351.5 297.0 351.5 0.01 47 150 14260 -68.3 -79.3 19 11.0 -68.4 100 35 352.4 352.4 297.1 352.5 0.00 48 133 14970 -74.5 -82.5 28 8.0 -74.5 96 31 353.7 353.7 297.4 353.7 0.00 49 100 16610 -79.1 -85.1 37 6.0 -79.1 85 23 374.9 374.9 301.4 374.9 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5781.00 m Freezing level: 569.00 mb = 4831.86 m = 15852.38 ft Wetbulb zero: 587.15 mb = 4579.12 m = 15023.18 ft Precipitable water: 2.29 inches Sfc-500 mean rel hum: 80.29 % Est. max temperature: 32.21 C = 89.98 F Sfc-Lift cond lev (LCL): 951.08 mb = 522.86 m = 1715.39 ft T: 25.12 C 700-500 lapse rate: 5.26 C/km ThetaE index: 20.31 C Layer 783.0- 700.0 mb Conv cond level (CCL): 871.09 mb = 1288.21 m = 4226.37 ft Mean mixing ratio: 16.43 g/kg Conv temperature: 31.92 C = 89.46 F Cap Strength: 1.51 C Lifted Index: -2.77 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -0.85 C Lifted Index @700 mb: -1.94 C Showalter Index: -2.12 C Risk: Severe thunderstorms possible Total Totals Index: 46.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.30 C Cross Totals Index: 22.80 C K Index: 39.90 Risk: > 80 % chance of thunderstorms Sweat Index: 224.60 Risk: None Energy Index: -1.55 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 610.48 J/kg Max Up Vert Vel: 34.94 m/s Conv Inhibition (B-): 26.72 J/kg Cap Strength: 1.51 C Lift Cond Lev (LCL): 899.68 mb = 1007.90 m = 3306.70 ft Lev Free Conv (LFC): 844.68 mb = 1554.50 m = 5100.02 ft Equ Level (EL): 184.68 mb = 12971.37 m = 42556.46 ft B at Equ Level: 607.63 J/kg Wind level data Storm motion: 106 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 1009 19 220 3 1.9 2.3 | 265 8 7.5 0.7 1 1000 79 210 9 4.5 7.8 | 238 12 10.1 6.2 2 925 767 195 5 1.3 4.8 | 245 8 6.9 3.2 3 850 1501 230 1 0.8 0.6 | 279 6 6.4 -1.0 4 700 3140 55 7 -5.7 -4.0 | 1 6 -0.1 -5.6 5 500 5860 75 15 -14.5 -3.9 | 58 10 -8.9 -5.5 6 400 7580 80 11 -10.8 -1.9 | 56 6 -5.2 -3.5 7 300 9700 135 11 -7.8 7.8 | 161 7 -2.2 6.2 8 250 10980 120 21 -18.2 10.5 | 125 15 -12.6 8.9 9 200 12460 105 23 -22.2 6.0 | 105 17 -16.6 4.4 10 150 14260 100 35 -34.5 6.1 | 99 29 -28.9 4.5 11 100 16610 85 23 -22.9 -2.0 | 78 18 -17.3 -3.6 Wind Parameters Mean winds (0-6000m): 75.9 at 7.8 knts Storm direction: 105.9 at 5.8 knts Shear (0-3000m) pos: 0.9 neg: 1.1 tot: 2.1 10-3/s Storm rel Dir Shear (0-3000m): 101.8 deg Storm rel helicity (0-3000m) pos: 10.8 neg: -15.6 tot: -4.9 m^2/s^2 ave: -1.6 10^-3 m/s^2 rel: -0.03 Storm rel vorticity (0-3000m) horiz: 4.6 stream: -0.1 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 24.02 Bulk Shear: 25.41 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 ------------------------------------------------------------------------------- 500 207 7 241 10| 0.0 3.9 3.9| 0.9 -10.3 -9.3 -18.7 -0.47| 8.8 -4.1 1000 204 6 243 9| 1.5 1.9 3.4| 5.6 -10.3 -4.7 -4.7 -0.15| 6.0 -0.9 1500 204 5 249 8| 1.9 1.3 3.2| 10.3 -10.3 0.0 0.0 0.05| 4.9 0.3 2000 202 4 252 8| 1.4 1.5 3.0| 10.3 -14.1 -3.8 -1.9 -0.09| 4.4 -0.4 2500 189 4 248 7| 1.1 1.5 2.6| 10.3 -15.5 -5.2 -2.1 -0.13| 4.3 -0.6 3000 168 4 240 5| 0.9 1.1 2.1| 10.8 -15.6 -4.9 -1.6 -0.03| 4.6 -0.1 4000 92 5 346 1| 0.8 1.0 1.8| 14.6 -16.0 -1.4 -0.3 0.04| 4.0 0.2 5000 76 6 12 3| 0.9 0.8 1.6| 20.1 -16.0 4.1 0.8 0.12| 3.5 0.4 6000 76 8 29 4| 0.9 0.6 1.5| 25.8 -16.0 9.7 1.6 0.17| 3.2 0.5 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251009.12.gif