UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122512.upa.cvt Date: 1200Z 25 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 25 DEC 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 25.8 25.0 95 0.8 25.2 165 1 298.2 301.8 298.1 356.9 20.14 1 1000 84 25.2 24.5 96 0.7 24.7 140 3 298.4 301.9 297.8 355.8 19.71 2 981 253 24.0 23.6 98 0.4 23.8 129 4 298.8 302.2 297.5 354.3 19.02 3 967 380 25.2 20.2 74 5.0 21.6 121 6 301.2 304.1 296.0 347.1 15.59 4 925 770 22.6 20.2 86 2.4 20.9 95 9 302.4 305.4 296.8 350.7 16.32 5 850 1503 17.8 17.2 96 0.6 17.4 35 13 304.8 307.5 296.3 348.6 14.68 6 829 1718 16.4 16.4 100 0.0 16.4 40 14 305.5 308.2 296.3 348.3 14.30 7 723 2875 10.2 10.2 100 0.0 10.2 64 20 310.9 313.0 295.3 344.2 10.88 8 700 3145 9.2 9.2 100 0.0 9.2 70 21 312.7 314.7 295.6 345.1 10.50 9 657 3669 7.6 3.9 77 3.7 5.4 88 19 316.6 318.1 294.6 341.0 7.73 10 580 4686 1.2 1.0 99 0.2 1.1 123 15 320.6 322.0 295.1 343.4 7.12 11 500 5870 -4.1 -7.0 80 2.9 -5.5 165 11 328.0 328.9 295.1 343.2 4.53 12 490 6029 -4.5 -9.5 68 5.0 -6.8 164 11 329.5 330.2 294.9 342.3 3.80 13 401 7581 -13.5 -26.5 33 13.0 -17.1 155 9 337.2 337.4 294.6 341.2 1.09 14 400 7600 -13.9 -25.9 36 12.0 -17.3 155 9 336.9 337.2 294.6 341.2 1.16 15 391 7773 -15.1 -21.1 60 6.0 -17.0 155 9 337.6 337.9 295.3 344.1 1.82 16 383 7929 -16.1 -27.1 38 11.0 -19.0 156 8 338.2 338.5 294.8 342.2 1.08 17 379 8008 -16.9 -24.9 50 8.0 -19.1 156 8 338.2 338.5 295.1 343.1 1.34 18 377 8048 -17.1 -20.1 77 3.0 -18.1 156 8 338.4 338.9 295.7 345.8 2.06 19 374 8108 -17.3 -31.3 28 14.0 -20.5 156 8 339.0 339.1 294.7 341.8 0.75 20 370 8189 -17.7 -38.7 14 21.0 -21.5 156 7 339.5 339.5 294.6 340.9 0.36 21 360 8394 -19.1 -21.5 81 2.4 -19.8 157 7 340.3 340.7 296.0 347.2 1.91 22 353 8540 -19.5 -24.1 67 4.6 -20.8 157 6 341.6 342.0 296.0 347.3 1.54 23 346 8689 -20.7 -24.2 73 3.5 -21.7 158 6 342.0 342.3 296.1 347.7 1.56 24 334 8950 -22.5 -33.5 36 11.0 -24.7 158 5 343.0 343.1 295.7 345.6 0.68 25 332 8994 -22.7 -28.7 58 6.0 -24.1 158 5 343.3 343.5 296.0 347.4 1.08 26 326 9128 -23.9 -30.9 52 7.0 -25.4 159 5 343.4 343.6 295.9 346.8 0.89 27 320 9263 -25.1 -45.1 14 20.0 -27.8 159 4 343.6 343.7 295.4 344.5 0.21 28 309 9517 -27.1 -33.1 57 6.0 -28.2 159 4 344.3 344.4 296.0 347.2 0.76 29 308 9541 -27.1 -38.1 34 11.0 -28.9 160 4 344.6 344.7 295.8 346.4 0.46 30 305 9611 -27.7 -44.7 18 17.0 -29.9 160 3 344.7 344.8 295.7 345.7 0.23 31 300 9730 -28.7 -40.7 31 12.0 -30.4 160 3 344.9 345.0 295.8 346.4 0.36 32 299 9754 -28.7 -52.7 8 24.0 -31.0 158 3 345.3 345.3 295.7 345.7 0.10 33 281 10196 -32.1 -44.1 29 12.0 -33.5 117 3 346.6 346.6 296.1 347.7 0.27 34 274 10373 -33.3 -54.3 10 21.0 -35.0 100 3 347.3 347.3 296.1 347.7 0.09 35 250 11010 -38.9 -52.9 21 14.0 -39.9 40 3 348.2 348.3 296.4 348.7 0.11 36 242 11232 -41.1 -49.1 42 8.0 -41.7 59 4 348.2 348.2 296.4 348.9 0.18 37 241 11260 -41.3 -47.3 52 6.0 -41.8 61 4 348.3 348.3 296.4 349.2 0.22 38 240 11289 -41.5 -43.4 82 1.9 -41.7 64 4 348.4 348.5 296.6 349.8 0.34 39 234 11460 -42.7 -47.7 58 5.0 -43.0 79 5 349.1 349.2 296.6 350.0 0.22 40 221 11843 -46.1 -52.1 51 6.0 -46.4 112 7 349.6 349.7 296.7 350.2 0.14 41 217 11964 -47.1 -50.3 70 3.2 -47.3 122 8 349.9 350.0 296.8 350.7 0.18 42 212 12118 -47.9 -64.9 12 17.0 -48.4 136 9 351.0 351.0 296.9 351.1 0.03 43 200 12500 -51.3 -68.3 11 17.0 -51.7 170 11 351.5 351.5 297.0 351.6 0.02 44 164 13756 -62.7 -74.7 18 12.0 -62.8 163 25 352.9 352.9 297.3 353.0 0.01 45 150 14300 -67.3 -75.3 31 8.0 -67.4 160 31 354.2 354.2 297.5 354.2 0.01 46 144 14544 -69.5 -75.5 41 6.0 -69.5 156 29 354.5 354.5 297.6 354.5 0.01 47 100 16630 -85.3 -90.0 43 4.7 -85.3 120 7 362.9 362.9 299.2 362.9 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5786.00 m Freezing level: 561.89 mb = 4953.91 m = 16252.79 ft Wetbulb zero: 566.90 mb = 4868.04 m = 15971.06 ft Precipitable water: 2.49 inches Sfc-500 mean rel hum: 91.79 % Est. max temperature: 32.13 C = 89.84 F Sfc-Lift cond lev (LCL): 997.83 mb = 103.18 m = 338.50 ft T: 25.06 C 700-500 lapse rate: 4.88 C/km ThetaE index: 9.78 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 889.26 mb = 1111.60 m = 3646.95 ft Mean mixing ratio: 17.14 g/kg Conv temperature: 31.16 C = 88.09 F Cap Strength: 1.57 C Lifted Index: -1.60 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.00 C Lifted Index @700 mb: -1.72 C Showalter Index: -0.66 C Risk: Thunderstorms probable Total Totals Index: 43.20 C Risk: None Vertical Totals Index: 21.90 C Cross Totals Index: 21.30 C K Index: 39.10 Risk: > 80 % chance of thunderstorms Sweat Index: 243.40 Risk: None Energy Index: -1.16 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 473.68 J/kg Max Up Vert Vel: 30.78 m/s Conv Inhibition (B-): 29.41 J/kg Cap Strength: 1.57 C Lift Cond Lev (LCL): 925.06 mb = 769.41 m = 2524.29 ft Lev Free Conv (LFC): 850.06 mb = 1502.37 m = 4928.98 ft Equ Level (EL): 210.06 mb = 12178.52 m = 39955.29 ft B at Equ Level: 469.64 J/kg Wind level data Storm motion: 111 at 11 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 19 165 1 -0.3 1.0 | 286 10 9.8 -2.8 1 1000 84 140 3 -1.9 2.3 | 280 8 8.1 -1.5 2 925 770 95 9 -9.0 0.8 | 340 3 1.1 -3.0 3 850 1503 35 13 -7.5 -10.6 | 350 15 2.6 -14.4 4 700 3145 70 21 -19.7 -7.2 | 41 15 -9.7 -11.0 5 500 5870 165 11 -2.8 10.6 | 226 10 7.2 6.8 6 400 7600 155 9 -3.8 8.2 | 235 8 6.2 4.4 7 300 9730 160 3 -1.0 2.8 | 276 9 9.0 -1.0 8 250 11010 40 3 -1.9 -2.3 | 307 10 8.1 -6.1 9 200 12500 170 11 -1.9 10.8 | 229 11 8.1 7.0 10 150 14300 160 31 -10.6 29.1 | 179 25 -0.6 25.3 11 100 16630 120 7 -6.1 3.5 | 274 4 4.0 -0.3 Wind Parameters Mean winds (0-6000m): 80.7 at 14.3 knts Storm direction: 110.7 at 10.7 knts Shear (0-3000m) pos: 2.0 neg: 2.4 tot: 4.3 10-3/s Storm rel Dir Shear (0-3000m): 110.9 deg Storm rel helicity (0-3000m) pos: 51.0 neg: -8.8 tot: 42.2 m^2/s^2 ave: 14.1 10^-3 m/s^2 rel: 0.41 Storm rel vorticity (0-3000m) horiz: 5.8 stream: 2.4 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 27.85 Bulk Shear: 17.01 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 ------------------------------------------------------------------------------- 500 122 4 283 6| 0.0 6.4 6.4| 1.1 -2.7 -1.5 -3.1 -0.04| 6.9 -0.3 1000 99 7 308 4| 0.0 5.4 5.4| 5.2 -2.7 2.5 2.5 0.30| 7.0 2.1 1500 75 8 341 6| 0.0 4.7 4.7| 5.2 -8.8 -3.6 -2.4 0.10| 7.5 0.7 2000 62 10 350 9| 0.9 3.5 4.5| 19.2 -8.8 10.4 5.2 0.22| 6.6 1.5 2500 59 11 357 10| 1.5 2.8 4.4| 34.4 -8.8 25.6 10.2 0.33| 6.1 2.0 3000 61 13 5 10| 2.0 2.4 4.3| 51.0 -8.8 42.2 14.1 0.41| 5.8 2.4 4000 68 14 20 10| 2.2 1.8 4.0| 78.5 -8.8 69.7 17.4 0.51| 5.9 3.0 5000 76 15 30 8| 2.1 1.4 3.6| 94.0 -8.8 85.2 17.0 0.59| 5.8 3.4 6000 81 14 34 7| 1.9 1.2 3.0|107.3 -8.8 98.4 16.4 0.62| 5.4 3.4 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251225.12.gif