UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101512.upa.cvt Date: 1200Z 15 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 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 1006 19 26.8 23.8 84 3.0 24.6 110 3 299.4 302.9 297.5 354.3 18.76 1 1000 53 26.8 23.4 82 3.4 24.3 110 5 300.0 303.3 297.5 353.9 18.41 2 986 178 27.4 23.3 78 4.1 24.4 107 8 301.8 305.2 298.0 356.6 18.57 3 925 743 23.8 20.2 80 3.6 21.2 95 23 303.6 306.7 297.1 352.1 16.32 4 850 1481 19.8 16.9 83 2.9 17.8 80 19 306.9 309.6 296.7 350.2 14.40 5 815 1843 17.2 15.4 89 1.8 16.0 82 19 307.8 310.4 296.4 349.0 13.63 6 700 3131 11.0 6.0 71 5.0 8.0 90 21 314.7 316.3 294.6 340.9 8.41 7 648 3774 8.6 0.6 57 8.0 4.1 83 19 319.0 320.2 294.0 338.8 6.18 8 593 4502 3.0 -0.9 76 3.9 0.9 75 16 320.7 321.8 294.4 340.2 6.05 9 585 4612 3.4 -2.6 65 6.0 0.3 74 16 322.4 323.4 294.3 340.0 5.41 10 529 5422 -2.3 -5.0 82 2.7 -3.7 65 13 325.0 325.9 294.7 341.4 4.99 11 500 5870 -4.1 -7.6 77 3.5 -5.8 60 11 328.0 328.9 294.9 342.5 4.32 12 473 6304 -7.3 -9.0 88 1.7 -8.1 70 10 329.3 330.1 295.1 343.2 4.10 13 456 6588 -8.3 -15.3 57 7.0 -11.0 77 9 331.5 332.1 294.4 340.4 2.55 14 420 7219 -12.7 -14.0 90 1.3 -13.2 91 8 333.8 334.4 295.4 344.5 3.09 15 412 7366 -12.9 -20.9 51 8.0 -15.5 95 8 335.4 335.7 294.7 341.7 1.75 16 403 7533 -13.9 -18.9 66 5.0 -15.6 99 7 336.2 336.6 295.2 343.8 2.13 17 400 7590 -14.5 -19.2 67 4.7 -16.1 100 7 336.1 336.6 295.2 343.6 2.09 18 391 7762 -15.7 -17.3 87 1.6 -16.3 105 7 336.8 337.3 295.7 345.7 2.52 19 390 7781 -15.5 -21.5 60 6.0 -17.4 106 7 337.3 337.6 295.2 343.6 1.76 20 386 7859 -16.1 -22.1 60 6.0 -18.0 108 7 337.5 337.8 295.2 343.6 1.69 21 320 9245 -25.7 -28.1 80 2.4 -26.2 150 5 342.8 343.0 296.0 347.2 1.18 22 300 9710 -28.5 -35.5 51 7.0 -29.7 165 5 345.2 345.3 296.1 347.6 0.62 23 296 9806 -29.1 -38.1 42 9.0 -30.5 161 5 345.7 345.8 296.1 347.6 0.48 24 283 10126 -31.7 -56.7 7 25.0 -33.6 149 7 346.4 346.4 295.9 346.7 0.06 25 262 10666 -36.1 -45.1 39 9.0 -37.0 128 9 347.7 347.8 296.4 348.8 0.26 26 255 10854 -37.9 -50.9 24 13.0 -38.9 120 10 347.7 347.8 296.3 348.3 0.14 27 251 10963 -38.7 -45.7 48 7.0 -39.4 116 11 348.1 348.2 296.4 349.2 0.25 28 250 10990 -38.9 -46.9 43 8.0 -39.6 115 11 348.2 348.3 296.4 349.2 0.22 29 220 11854 -46.5 -60.5 19 14.0 -47.0 189 9 349.5 349.5 296.5 349.7 0.05 30 208 12224 -49.5 -61.5 23 12.0 -49.9 222 8 350.4 350.4 296.8 350.6 0.05 31 200 12480 -51.5 -55.9 59 4.4 -51.7 245 7 351.2 351.2 297.0 351.6 0.10 32 199 12512 -51.7 -55.9 61 4.2 -51.8 246 7 351.4 351.4 297.0 351.8 0.10 33 175 13331 -58.5 -61.5 68 3.0 -58.6 266 11 353.4 353.4 297.4 353.6 0.06 34 167 13623 -61.5 -68.5 39 7.0 -61.6 273 12 353.1 353.1 297.3 353.2 0.02 35 150 14280 -66.1 -71.1 49 5.0 -66.1 290 15 356.2 356.2 298.0 356.3 0.02 36 107 16244 -82.1 -85.4 57 3.3 -82.1 59 18 362.0 362.0 299.1 362.0 0.00 37 100 16620 -83.3 -85.6 67 2.3 -83.3 85 19 366.8 366.8 300.0 366.8 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5817.00 m Freezing level: 551.60 mb = 5095.56 m = 16717.53 ft Wetbulb zero: 581.37 mb = 4662.41 m = 15296.42 ft Precipitable water: 2.37 inches Sfc-500 mean rel hum: 75.88 % Est. max temperature: 33.99 C = 93.19 F Sfc-Lift cond lev (LCL): 963.54 mb = 382.07 m = 1253.50 ft T: 26.10 C 700-500 lapse rate: 5.51 C/km ThetaE index: 17.82 C Layer 925.0- 593.0 mb Conv cond level (CCL): 851.17 mb = 1468.98 m = 4819.42 ft Mean mixing ratio: 17.38 g/kg Conv temperature: 34.21 C = 93.59 F Cap Strength: 1.88 C Lifted Index: -2.54 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.27 C Lifted Index @700 mb: -0.68 C Showalter Index: -1.25 C Risk: Thunderstorms probable Total Totals Index: 44.90 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.90 C Cross Totals Index: 21.00 C K Index: 35.80 Risk: > 80 % chance of thunderstorms Sweat Index: 251.80 Risk: None Energy Index: -1.54 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 900.03 J/kg Max Up Vert Vel: 42.43 m/s Conv Inhibition (B-): 45.84 J/kg Cap Strength: 1.88 C Lift Cond Lev (LCL): 905.13 mb = 932.54 m = 3059.48 ft Lev Free Conv (LFC): 810.13 mb = 1893.54 m = 6212.34 ft Equ Level (EL): 160.13 mb = 13880.12 m = 45537.90 ft B at Equ Level: 895.34 J/kg Wind level data Storm motion: 114 at 13 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 1006 19 110 3 -2.8 1.0 | 295 10 9.0 -4.3 1 1000 53 110 5 -4.7 1.7 | 297 8 7.1 -3.6 2 925 743 95 23 -22.9 2.0 | 74 12 -11.1 -3.3 3 850 1481 80 19 -18.7 -3.3 | 39 11 -6.9 -8.6 4 700 3131 90 21 -21.0 0.0 | 60 11 -9.2 -5.3 5 500 5870 60 11 -9.5 -5.5 | 348 11 2.3 -10.8 6 400 7590 100 7 -6.9 1.2 | 310 6 4.9 -4.1 7 300 9710 165 5 -1.3 4.8 | 272 11 10.5 -0.5 8 250 10990 115 11 -10.0 4.6 | 289 2 1.8 -0.6 9 200 12480 245 7 6.3 3.0 | 277 18 18.1 -2.3 10 150 14280 290 15 14.1 -5.1 | 292 28 25.9 -10.4 11 100 16620 85 19 -18.9 -1.7 | 46 10 -7.1 -6.9 Wind Parameters Mean winds (0-6000m): 84.1 at 17.2 knts Storm direction: 114.1 at 12.9 knts Shear (0-3000m) pos: 0.6 neg: 2.8 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 123.3 deg Storm rel helicity (0-3000m) pos: 20.0 neg: -19.4 tot: 0.6 m^2/s^2 ave: 0.2 10^-3 m/s^2 rel: 0.20 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 1.1 10^-3/s Energy-Hel index: 0.07 Bulk Rich Number: 103.89 Bulk Shear: 8.66 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 ------------------------------------------------------------------------------- 500 102 10 331 3| 0.0 14.6 14.6| 7.6 0.0 7.6 15.2 0.56| 15.0 8.3 1000 96 16 46 5| 0.0 9.6 9.6| 9.7 -7.6 2.1 2.1 0.29| 11.7 3.4 1500 92 17 48 7| 0.0 5.7 5.7| 9.7 -19.4 -9.8 -6.5 0.09| 9.2 0.9 2000 89 18 47 8| 0.3 4.2 4.6| 13.1 -19.4 -6.4 -3.2 0.13| 7.2 1.0 2500 88 18 47 9| 0.5 3.4 3.9| 16.5 -19.4 -2.9 -1.2 0.17| 6.0 1.0 3000 88 19 49 9| 0.6 2.8 3.5| 20.0 -19.4 0.6 0.2 0.20| 5.2 1.1 4000 88 19 49 9| 0.5 1.9 2.3| 20.7 -31.8 -11.1 -2.8 0.05| 4.5 0.2 5000 86 18 44 9| 0.4 1.3 1.6| 20.7 -44.5 -23.8 -4.8 -0.07| 4.1 -0.3 6000 84 17 37 9| 0.3 0.8 1.2| 20.7 -55.3 -34.5 -5.8 -0.15| 3.8 -0.6 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251015.12.gif