UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120312.upa.cvt Date: 1200Z 3 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 3 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 1010 19 25.6 25.0 96 0.6 25.2 275 1 297.9 301.6 298.0 356.5 20.12 1 1000 92 24.8 24.2 96 0.6 24.4 255 3 298.0 301.5 297.5 354.2 19.35 2 984 234 25.6 22.7 84 2.9 23.5 277 6 300.1 303.4 297.2 352.7 17.92 3 925 777 21.4 20.9 97 0.5 21.1 360 17 301.2 304.3 297.0 351.4 17.06 4 916 862 20.8 20.7 99 0.1 20.8 360 17 301.4 304.5 297.0 351.5 17.01 5 896 1054 21.0 19.3 90 1.7 19.8 360 16 303.5 306.5 296.8 350.8 15.92 6 850 1510 17.8 17.2 96 0.6 17.4 360 15 304.8 307.5 296.3 348.6 14.68 7 757 2497 13.0 13.0 100 0.0 13.0 27 11 309.9 312.2 296.2 348.0 12.54 8 700 3154 9.8 9.3 97 0.5 9.5 45 9 313.3 315.4 295.7 346.1 10.57 9 630 4022 4.8 4.8 100 0.0 4.8 58 12 317.2 318.9 295.4 344.3 8.60 10 545 5194 -0.3 -5.1 70 4.8 -2.7 75 15 324.6 325.5 294.4 340.4 4.81 11 539 5283 -0.7 -7.7 59 7.0 -4.0 76 15 325.1 325.9 293.9 338.4 3.98 12 504 5817 -3.5 -19.5 28 16.0 -9.1 84 17 328.0 328.3 292.7 333.7 1.62 13 500 5880 -3.7 -18.7 30 15.0 -9.1 85 17 328.5 328.9 293.0 334.6 1.75 14 498 5912 -3.9 -17.9 33 14.0 -9.0 85 17 328.7 329.0 293.1 335.2 1.88 15 493 5991 -4.5 -10.5 63 6.0 -7.1 87 17 328.9 329.6 294.5 340.7 3.49 16 468 6400 -7.7 -10.5 80 2.8 -8.9 92 18 329.8 330.6 294.8 342.3 3.68 17 445 6791 -10.5 -11.1 95 0.6 -10.8 98 18 331.1 331.8 295.2 343.7 3.69 18 436 6949 -10.3 -16.3 61 6.0 -12.5 100 18 333.3 333.8 294.8 341.9 2.46 19 427 7109 -11.1 -14.3 77 3.2 -12.3 103 18 334.3 334.9 295.4 344.6 2.96 20 417 7292 -11.5 -26.5 28 15.0 -15.7 105 19 336.0 336.2 294.3 339.9 1.05 21 400 7610 -13.9 -28.9 27 15.0 -17.7 110 19 336.9 337.1 294.4 340.2 0.88 22 398 7648 -14.3 -29.3 27 15.0 -18.1 110 19 336.9 337.1 294.3 340.0 0.85 23 374 8116 -17.7 -29.7 34 12.0 -20.5 112 19 338.4 338.6 294.7 341.7 0.87 24 373 8136 -18.1 -26.1 50 8.0 -20.3 112 19 338.2 338.4 295.0 342.6 1.22 25 372 8156 -17.9 -32.9 26 15.0 -21.1 113 19 338.7 338.8 294.6 341.1 0.64 26 348 8651 -20.5 -42.5 12 22.0 -23.9 115 19 341.7 341.7 295.0 342.7 0.26 27 300 9730 -28.9 -48.9 13 20.0 -31.0 120 19 344.6 344.7 295.6 345.3 0.15 28 250 11010 -39.5 -57.5 13 18.0 -40.5 140 13 347.3 347.4 296.1 347.6 0.06 29 245 11148 -40.9 -56.9 16 16.0 -41.8 140 13 347.3 347.3 296.1 347.6 0.07 30 221 11843 -45.7 -68.7 6 23.0 -46.4 143 12 350.3 350.3 296.7 350.3 0.02 31 200 12500 -51.7 -68.7 11 17.0 -52.1 145 11 350.9 350.9 296.8 351.0 0.02 32 170 13527 -60.9 -73.9 16 13.0 -61.0 128 19 352.3 352.3 297.1 352.4 0.01 33 150 14290 -67.5 -77.5 23 10.0 -67.5 115 25 353.8 353.8 297.4 353.8 0.01 34 144 14535 -69.5 -78.5 26 9.0 -69.5 117 25 354.5 354.5 297.6 354.5 0.01 35 133 15006 -73.5 -77.2 57 3.7 -73.5 119 25 355.5 355.5 297.8 355.5 0.01 36 103 16466 -83.7 -88.7 41 5.0 -83.7 129 25 362.9 362.9 299.2 362.9 0.00 37 100 16630 -83.5 -89.5 34 6.0 -83.5 130 25 366.4 366.4 299.9 366.4 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5788.00 m Freezing level: 550.00 mb = 5125.12 m = 16814.48 ft Wetbulb zero: 575.32 mb = 4756.18 m = 15604.07 ft Precipitable water: 2.50 inches Sfc-500 mean rel hum: 87.59 % Est. max temperature: 32.23 C = 90.02 F Sfc-Lift cond lev (LCL): 1001.72 mb = 79.37 m = 260.40 ft T: 24.94 C 700-500 lapse rate: 4.95 C/km ThetaE index: 17.86 C Layer 896.0- 500.0 mb Conv cond level (CCL): 928.69 mb = 742.09 m = 2434.65 ft Mean mixing ratio: 17.80 g/kg Conv temperature: 28.83 C = 83.89 F Cap Strength: 0.79 C Lifted Index: -1.67 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.91 C Lifted Index @700 mb: -1.47 C Showalter Index: -0.26 C Risk: Thunderstorms probable Total Totals Index: 42.40 C Risk: None Vertical Totals Index: 21.50 C Cross Totals Index: 20.90 C K Index: 38.20 Risk: > 80 % chance of thunderstorms Sweat Index: 253.40 Risk: None Energy Index: -2.72 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 755.64 J/kg Max Up Vert Vel: 38.88 m/s Conv Inhibition (B-): 10.16 J/kg Cap Strength: 0.62 C Lift Cond Lev (LCL): 940.49 mb = 631.30 m = 2071.18 ft Lev Free Conv (LFC): 865.49 mb = 1353.82 m = 4441.62 ft Equ Level (EL): 165.49 mb = 13691.27 m = 44918.33 ft B at Equ Level: 752.35 J/kg Wind level data Storm motion: 71 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 1010 19 275 1 1.0 -0.1 | 253 10 10.0 3.0 1 1000 92 255 3 2.9 0.8 | 252 13 11.9 3.9 2 925 777 360 17 -0.0 -17.0 | 327 17 9.0 -13.9 3 850 1510 360 15 -0.0 -15.0 | 323 15 9.0 -11.9 4 700 3154 45 9 -6.4 -6.4 | 321 4 2.6 -3.3 5 500 5880 85 17 -16.9 -1.5 | 102 8 -7.9 1.6 6 400 7610 110 19 -17.9 6.5 | 137 13 -8.9 9.6 7 300 9730 120 19 -16.5 9.5 | 149 15 -7.5 12.6 8 250 11010 140 13 -8.4 10.0 | 183 13 0.6 13.1 9 200 12500 145 11 -6.3 9.0 | 193 12 2.7 12.1 10 150 14290 115 25 -22.7 10.6 | 135 19 -13.7 13.7 11 100 16630 130 25 -19.2 16.1 | 152 22 -10.1 19.2 Wind Parameters Mean winds (0-6000m): 40.9 at 12.7 knts Storm direction: 70.9 at 9.5 knts Shear (0-3000m) pos: 1.7 neg: 0.0 tot: 1.7 10-3/s Storm rel Dir Shear (0-3000m): 72.6 deg Storm rel helicity (0-3000m) pos: 99.8 neg: -5.3 tot: 94.6 m^2/s^2 ave: 31.5 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 6.5 stream: 3.7 10^-3/s Energy-Hel index: 0.47 Bulk Rich Number: 26.35 Bulk Shear: 28.68 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 ------------------------------------------------------------------------------- 500 306 6 273 14| 11.4 0.0 11.4| 43.9 -0.0 43.9 87.8 0.72| 14.7 10.6 1000 353 11 307 13| 8.4 0.0 8.4| 93.9 -1.3 92.6 92.6 0.81| 13.4 10.9 1500 356 12 314 14| 5.1 0.0 5.1| 93.9 -4.4 89.5 59.7 0.74| 9.4 7.0 2000 359 13 317 13| 3.4 0.0 3.4| 98.6 -4.4 94.2 47.1 0.70| 8.0 5.6 2500 3 13 319 13| 2.4 0.0 2.4| 99.8 -4.4 95.5 38.2 0.64| 7.1 4.6 3000 6 12 320 12| 1.7 0.0 1.7| 99.8 -5.3 94.6 31.5 0.57| 6.5 3.7 4000 15 12 324 10| 1.6 0.0 1.6|102.7 -5.6 97.1 24.3 0.58| 5.4 3.1 5000 27 12 335 8| 1.6 0.0 1.6|106.6 -5.6 101.0 20.2 0.61| 4.8 2.9 6000 41 13 354 7| 1.6 0.0 1.6|112.7 -5.6 107.1 17.9 0.62| 4.4 2.7 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251203.12.gif