UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101500.upa.cvt Date: 0000Z 15 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:0000Z 15 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 27.0 24.7 87 2.3 25.3 25 1 299.4 303.0 298.1 357.3 19.77 1 1000 79 25.8 24.0 90 1.8 24.5 35 3 299.0 302.4 297.7 354.8 19.11 2 925 766 23.4 18.4 74 5.0 19.9 90 17 303.2 305.9 295.8 346.4 14.55 3 850 1500 19.0 14.9 77 4.1 16.3 90 13 306.0 308.4 295.3 344.0 12.64 4 738 2702 12.4 8.1 75 4.3 9.7 83 14 311.5 313.2 294.3 339.9 9.23 5 700 3146 11.4 4.4 62 7.0 7.3 80 15 315.1 316.6 294.0 338.7 7.51 6 672 3487 9.6 1.6 57 8.0 5.1 78 15 316.8 318.0 293.6 337.1 6.41 7 549 5137 -0.9 -5.1 73 4.2 -3.0 66 12 323.2 324.1 294.0 338.8 4.77 8 526 5478 -2.3 -11.3 50 9.0 -6.2 63 12 325.5 326.1 293.3 335.8 3.07 9 500 5880 -4.7 -9.7 68 5.0 -7.0 60 11 327.3 328.0 294.2 339.6 3.66 10 499 5896 -4.7 -9.7 68 5.0 -7.0 60 11 327.5 328.2 294.3 339.9 3.67 11 465 6447 -7.9 -19.9 37 12.0 -12.0 58 9 330.2 330.5 293.3 336.2 1.70 12 439 6891 -11.1 -12.9 87 1.8 -11.8 57 8 331.6 332.3 295.0 342.7 3.23 13 434 6979 -11.3 -19.3 52 8.0 -14.0 57 7 332.5 332.8 294.1 339.2 1.91 14 431 7032 -11.9 -15.6 74 3.7 -13.3 57 7 332.4 332.9 294.7 341.5 2.63 15 426 7122 -12.1 -24.1 36 12.0 -15.6 56 7 333.2 333.5 293.8 337.8 1.28 16 419 7248 -12.7 -25.7 33 13.0 -16.3 56 6 334.0 334.2 293.9 338.1 1.13 17 400 7600 -15.7 -23.7 50 8.0 -18.0 55 5 334.6 334.9 294.3 339.7 1.41 18 395 7695 -16.3 -24.3 50 8.0 -18.6 57 5 335.0 335.3 294.3 339.9 1.35 19 392 7752 -16.9 -18.9 84 2.0 -17.6 58 5 335.0 335.4 295.0 342.7 2.19 20 391 7772 -17.1 -19.8 79 2.7 -18.0 58 5 334.9 335.4 294.8 342.2 2.03 21 390 7791 -16.9 -28.9 35 12.0 -19.8 59 5 335.4 335.6 294.0 338.8 0.90 22 388 7829 -17.1 -33.1 24 16.0 -20.5 59 5 335.7 335.8 293.8 338.0 0.61 23 387 7849 -17.3 -34.3 21 17.0 -20.8 60 5 335.7 335.8 293.7 337.7 0.54 24 384 7907 -17.7 -25.7 50 8.0 -19.8 61 5 335.9 336.1 294.4 340.4 1.23 25 383 7927 -17.7 -36.7 17 19.0 -21.3 61 5 336.1 336.2 293.8 337.8 0.43 26 381 7966 -17.9 -32.9 26 15.0 -21.1 62 5 336.4 336.5 294.0 338.7 0.63 27 379 8005 -18.5 -21.1 80 2.6 -19.3 62 5 336.1 336.5 295.0 342.8 1.87 28 373 8124 -19.1 -28.1 45 9.0 -21.3 65 5 336.8 337.0 294.4 340.6 1.01 29 366 8265 -20.7 -23.7 77 3.0 -21.5 67 6 336.5 336.8 294.8 342.1 1.54 30 363 8326 -20.9 -26.9 59 6.0 -22.4 68 6 337.1 337.3 294.6 341.3 1.16 31 361 8367 -21.3 -22.6 89 1.3 -21.7 69 6 337.1 337.4 295.1 343.3 1.73 32 356 8470 -21.9 -28.9 53 7.0 -23.5 71 6 337.6 337.8 294.6 341.2 0.99 33 350 8595 -22.5 -30.5 48 8.0 -24.2 74 6 338.4 338.6 294.7 341.7 0.86 34 333 8959 -25.3 -29.4 69 4.1 -26.2 80 6 339.4 339.7 295.1 343.2 1.01 35 325 9136 -26.3 -32.3 57 6.0 -27.5 84 6 340.4 340.6 295.1 343.4 0.78 36 319 9270 -27.5 -29.0 87 1.5 -27.8 86 7 340.6 340.8 295.4 344.7 1.09 37 303 9639 -29.9 -36.9 51 7.0 -31.0 94 7 342.3 342.4 295.4 344.3 0.53 38 300 9710 -30.7 -37.7 50 7.0 -31.7 95 7 342.1 342.2 295.3 344.0 0.50 39 282 10143 -34.5 -36.7 80 2.2 -34.8 71 7 342.8 342.9 295.5 345.0 0.58 40 274 10343 -35.5 -41.5 54 6.0 -36.2 60 7 344.1 344.2 295.7 345.6 0.37 41 259 10730 -38.5 -45.5 48 7.0 -39.1 39 7 345.3 345.4 295.8 346.3 0.25 42 250 10970 -40.7 -46.7 52 6.0 -41.2 25 7 345.6 345.6 295.8 346.5 0.23 43 238 11304 -42.9 -50.9 41 8.0 -43.4 26 11 347.1 347.2 296.1 347.8 0.15 44 221 11799 -47.7 -56.7 35 9.0 -48.1 28 16 347.2 347.2 296.1 347.5 0.08 45 211 12103 -50.5 -56.5 49 6.0 -50.7 29 19 347.4 347.5 296.1 347.8 0.09 46 209 12165 -51.1 -55.2 62 4.1 -51.2 29 20 347.4 347.5 296.1 347.9 0.10 47 200 12450 -53.1 -63.1 29 10.0 -53.4 30 23 348.7 348.7 296.4 348.9 0.04 48 191 12746 -55.1 -69.1 16 14.0 -55.4 38 21 350.1 350.1 296.7 350.2 0.02 49 174 13337 -59.7 -64.7 52 5.0 -59.8 54 16 352.0 352.0 297.1 352.1 0.04 50 170 13482 -60.7 -76.7 10 16.0 -60.9 58 15 352.7 352.7 297.2 352.7 0.01 51 155 14051 -65.9 -71.9 43 6.0 -66.0 74 11 353.2 353.2 297.3 353.3 0.01 52 150 14250 -66.7 -75.7 27 9.0 -66.8 80 9 355.2 355.2 297.7 355.2 0.01 53 137 14791 -70.7 -82.7 15 12.0 -70.8 77 11 357.5 357.5 298.2 357.5 0.00 54 105 16326 -80.7 -85.7 43 5.0 -80.7 70 17 366.7 366.7 299.9 366.7 0.00 55 100 16600 -80.7 -85.7 43 5.0 -80.7 100 21 371.8 371.8 300.9 371.8 0.00 TRP 105 16326 -80.7 -85.7 43 5.0 -80.7 70 17 366.7 366.7 299.9 366.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5801.00 m Freezing level: 559.54 mb = 4995.13 m = 16388.03 ft Wetbulb zero: 594.49 mb = 4486.93 m = 14720.73 ft Precipitable water: 2.14 inches Sfc-500 mean rel hum: 70.01 % Est. max temperature: 33.34 C = 92.00 F Sfc-Lift cond lev (LCL): 976.34 mb = 289.98 m = 951.36 ft T: 25.06 C 700-500 lapse rate: 5.89 C/km ThetaE index: 20.15 C Layer 1000.0- 549.0 mb Conv cond level (CCL): 853.81 mb = 1461.19 m = 4793.88 ft Mean mixing ratio: 16.64 g/kg Conv temperature: 33.54 C = 92.37 F Cap Strength: 2.32 C Lifted Index: -1.91 C Risk: Thunderstorms probable Lifted Index @300 mb: -2.54 C Lifted Index @700 mb: 0.72 C Showalter Index: 0.50 C Risk: Thunderstorms probable Total Totals Index: 43.30 C Risk: None Vertical Totals Index: 23.70 C Cross Totals Index: 19.60 C K Index: 31.60 Risk: 60-80 % chance of thunderstorms Sweat Index: 215.80 Risk: None Energy Index: -0.85 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 674.82 J/kg Max Up Vert Vel: 36.74 m/s Conv Inhibition (B-): 62.90 J/kg Cap Strength: 2.32 C Lift Cond Lev (LCL): 911.73 mb = 891.44 m = 2924.63 ft Lev Free Conv (LFC): 756.73 mb = 2489.03 m = 8166.02 ft Equ Level (EL): 716.73 mb = 2947.76 m = 9671.01 ft B at Equ Level: 10.74 J/kg Max Parcel Lev (MPL): 666.73 mb = 3550.94 m = 11649.92 ft Wind level data Storm motion: 109 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 1009 19 25 1 -0.4 -0.9 | 294 10 8.8 -4.0 1 1000 79 35 3 -1.7 -2.5 | 306 9 7.5 -5.6 2 925 766 90 17 -17.0 0.0 | 68 8 -7.8 -3.1 3 850 1500 90 13 -13.0 0.0 | 51 5 -3.8 -3.1 4 700 3146 80 15 -14.8 -2.6 | 44 8 -5.5 -5.7 5 500 5880 60 11 -9.5 -5.5 | 2 9 -0.3 -8.6 6 400 7600 55 5 -4.1 -2.9 | 319 8 5.1 -6.0 7 300 9710 95 7 -7.0 0.6 | 318 3 2.3 -2.5 8 250 10970 25 7 -3.0 -6.3 | 326 11 6.3 -9.4 9 200 12450 30 23 -11.5 -19.9 | 6 23 -2.3 -23.0 10 150 14250 80 9 -8.9 -1.6 | 355 5 0.4 -4.7 11 105 16326 70 17 -16.0 -5.8 | 37 11 -6.7 -8.9 12 100 16600 100 21 -20.7 3.6 | 93 11 -11.4 0.6 Wind Parameters Mean winds (0-6000m): 78.5 at 13.0 knts Storm direction: 108.5 at 9.7 knts Shear (0-3000m) pos: 2.6 neg: 0.4 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 110.3 deg Storm rel helicity (0-3000m) pos: 40.3 neg: -4.1 tot: 36.1 m^2/s^2 ave: 12.0 10^-3 m/s^2 rel: 0.64 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 2.8 10^-3/s Energy-Hel index: 0.17 Bulk Rich Number: 107.35 Bulk Shear: 6.29 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 62 7 331 7| 11.6 0.0 11.6| 26.6 0.0 26.6 53.2 0.98| 12.6 12.3 1000 85 11 22 4| 7.8 0.0 7.8| 40.3 -0.9 39.4 39.4 0.91| 10.4 9.5 1500 87 12 37 5| 5.2 0.9 6.1| 40.3 -3.1 37.2 24.8 0.75| 7.8 5.8 2000 87 12 40 5| 3.9 0.6 4.5| 40.3 -3.3 37.0 18.5 0.71| 6.1 4.3 2500 87 13 42 5| 3.1 0.4 3.6| 40.3 -3.6 36.6 14.6 0.67| 5.1 3.4 3000 86 13 43 5| 2.6 0.4 3.1| 40.3 -4.1 36.1 12.0 0.64| 4.4 2.8 4000 84 13 41 6| 2.0 0.6 2.5| 40.3 -8.6 31.7 7.9 0.51| 3.6 1.8 5000 81 13 37 6| 1.6 0.7 2.2| 40.3 -13.3 27.0 5.4 0.40| 3.1 1.2 6000 79 13 32 7| 1.3 0.7 2.0| 40.3 -18.3 22.0 3.7 0.30| 2.8 0.8 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251015.00.gif