UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 4 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 1011 19 26.6 23.4 83 3.2 24.3 110 5 298.8 302.1 297.0 351.9 18.21 1 1000 101 26.2 23.2 84 3.0 24.0 110 9 299.4 302.7 297.2 352.5 18.19 2 946 589 22.2 21.0 93 1.2 21.3 96 12 300.1 303.1 296.4 349.2 16.78 3 925 785 22.2 19.9 87 2.3 20.6 90 13 302.0 305.0 296.5 349.3 16.01 4 900 1024 21.2 18.9 87 2.3 19.6 88 15 303.4 306.2 296.4 349.2 15.45 5 890 1121 21.4 17.5 78 3.9 18.7 88 16 304.5 307.2 296.0 347.1 14.28 6 869 1329 20.6 14.6 68 6.0 16.5 86 17 305.8 308.0 294.8 342.1 12.11 7 850 1520 18.8 13.9 73 4.9 15.5 85 19 305.8 308.0 294.6 341.3 11.83 8 739 2707 11.0 8.9 87 2.1 9.7 92 19 309.8 311.7 294.2 339.6 9.74 9 702 3135 9.8 5.0 72 4.8 6.9 95 19 313.1 314.6 293.7 337.4 7.82 10 700 3159 9.8 3.8 66 6.0 6.3 95 19 313.3 314.7 293.3 335.8 7.20 11 695 3219 9.8 0.8 53 9.0 4.9 94 19 314.0 315.1 292.3 332.4 5.84 12 686 3327 9.0 4.0 71 5.0 6.1 93 19 314.3 315.7 293.7 337.6 7.45 13 599 4440 3.2 -4.8 56 8.0 -0.8 83 17 320.0 320.8 292.9 334.5 4.47 14 586 4618 2.6 -11.4 35 14.0 -3.4 82 17 321.3 321.8 291.8 330.4 2.73 15 545 5203 0.6 -9.4 47 10.0 -4.0 76 16 325.6 326.3 293.6 337.2 3.44 16 500 5890 -4.1 -12.1 54 8.0 -7.5 70 15 328.0 328.6 293.9 338.3 3.02 17 475 6293 -7.3 -14.3 57 7.0 -10.1 80 15 328.9 329.5 293.9 338.1 2.66 18 432 7030 -9.9 -20.9 40 11.0 -13.6 99 14 334.7 335.0 294.5 340.7 1.67 19 400 7620 -14.1 -27.1 32 13.0 -17.6 115 13 336.7 336.9 294.4 340.5 1.04 20 390 7812 -15.3 -32.3 22 17.0 -19.2 119 12 337.5 337.7 294.3 340.0 0.65 21 379 8027 -16.9 -28.9 35 12.0 -19.9 122 12 338.2 338.4 294.7 341.7 0.93 22 376 8087 -17.5 -22.1 67 4.6 -18.9 124 11 338.2 338.5 295.4 344.4 1.73 23 328 9096 -24.3 -48.3 9 24.0 -27.2 143 7 342.3 342.3 295.0 342.9 0.15 24 320 9275 -25.5 -47.5 11 22.0 -28.2 146 7 343.1 343.1 295.2 343.7 0.16 25 317 9343 -25.9 -35.9 39 10.0 -27.6 147 7 343.4 343.5 295.7 345.6 0.56 26 315 9389 -26.1 -34.1 47 8.0 -27.6 148 6 343.8 343.9 295.8 346.4 0.68 27 300 9740 -29.3 -34.0 64 4.7 -30.1 155 5 344.1 344.2 295.9 346.9 0.72 28 298 9788 -29.9 -34.5 64 4.6 -30.7 155 5 343.9 344.0 295.8 346.5 0.69 29 295 9859 -30.1 -39.1 41 9.0 -31.4 156 6 344.6 344.7 295.8 346.3 0.44 30 285 10103 -32.1 -45.1 26 13.0 -33.6 158 8 345.2 345.2 295.8 346.1 0.24 31 277 10302 -33.5 -53.5 12 20.0 -35.1 159 10 346.0 346.0 295.8 346.4 0.09 32 250 11010 -39.7 -51.7 27 12.0 -40.5 165 17 347.0 347.1 296.1 347.6 0.13 33 201 12468 -52.5 -60.5 37 8.0 -52.7 160 19 349.1 349.1 296.5 349.4 0.06 34 200 12500 -52.7 -60.7 37 8.0 -52.9 160 19 349.3 349.3 296.5 349.5 0.05 35 182 13100 -58.1 -67.1 31 9.0 -58.2 149 22 350.1 350.1 296.7 350.2 0.03 36 150 14290 -67.5 -76.5 27 9.0 -67.5 125 27 353.8 353.8 297.4 353.8 0.01 37 134 14962 -71.1 -85.1 11 14.0 -71.2 108 25 359.0 359.0 298.5 359.0 0.00 38 116 15802 -76.3 -87.3 16 11.0 -76.3 87 22 364.5 364.5 299.5 364.5 0.00 39 100 16640 -83.9 -88.5 44 4.6 -83.9 65 19 365.6 365.6 299.8 365.6 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5789.00 m Freezing level: 539.26 mb = 5290.77 m = 17357.95 ft Wetbulb zero: 608.83 mb = 4306.14 m = 14127.59 ft Precipitable water: 2.09 inches Sfc-500 mean rel hum: 68.23 % Est. max temperature: 33.62 C = 92.51 F Sfc-Lift cond lev (LCL): 965.48 mb = 409.80 m = 1344.46 ft T: 23.67 C 700-500 lapse rate: 5.09 C/km ThetaE index: 16.91 C Layer 900.0- 686.0 mb Conv cond level (CCL): 860.24 mb = 1416.35 m = 4646.75 ft Mean mixing ratio: 17.08 g/kg Conv temperature: 33.62 C = 92.51 F Cap Strength: 1.95 C Lifted Index: -1.31 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.19 C Lifted Index @700 mb: -0.94 C Showalter Index: 2.15 C Risk: Showers probable Total Totals Index: 40.90 C Risk: None Vertical Totals Index: 22.90 C Cross Totals Index: 18.00 C K Index: 30.80 Risk: 60-80 % chance of thunderstorms Sweat Index: 219.80 Risk: None Energy Index: -0.58 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 438.42 J/kg Max Up Vert Vel: 29.61 m/s Conv Inhibition (B-): 48.94 J/kg Cap Strength: 1.96 C Lift Cond Lev (LCL): 930.83 mb = 730.17 m = 2395.55 ft Lev Free Conv (LFC): 805.83 mb = 1972.54 m = 6471.50 ft Equ Level (EL): 175.83 mb = 13312.70 m = 43676.31 ft B at Equ Level: 432.65 J/kg Max Parcel Lev (MPL): 115.83 mb = 15810.88 m = 51872.32 ft Wind level data Storm motion: 117 at 12 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 1011 19 110 5 -4.7 1.7 | 302 7 6.4 -4.0 1 1000 101 110 9 -8.5 3.1 | 315 4 2.6 -2.6 2 925 785 90 13 -13.0 0.0 | 19 6 -1.9 -5.7 3 850 1520 85 19 -18.9 -1.7 | 47 11 -7.9 -7.3 4 700 3159 95 19 -18.9 1.7 | 63 9 -7.9 -4.0 5 500 5890 70 15 -14.1 -5.1 | 16 11 -3.0 -10.8 6 400 7620 115 13 -11.8 5.5 | 76 1 -0.7 -0.2 7 300 9740 155 5 -2.1 4.5 | 277 9 8.9 -1.1 8 250 11010 165 17 -4.4 16.4 | 212 13 6.7 10.7 9 200 12500 160 19 -6.5 17.9 | 201 13 4.6 12.2 10 150 14290 125 27 -22.1 15.5 | 132 15 -11.1 9.8 11 100 16640 65 19 -17.2 -8.0 | 24 15 -6.2 -13.7 Wind Parameters Mean winds (0-6000m): 87.2 at 16.6 knts Storm direction: 117.2 at 12.4 knts Shear (0-3000m) pos: 0.5 neg: 2.5 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 119.5 deg Storm rel helicity (0-3000m) pos: 20.4 neg: 0.0 tot: 20.4 m^2/s^2 ave: 6.8 10^-3 m/s^2 rel: 0.63 Storm rel vorticity (0-3000m) horiz: 3.2 stream: 2.0 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 53.18 Bulk Shear: 8.24 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 ------------------------------------------------------------------------------- 500 104 10 332 4| 0.0 6.8 6.8| 4.6 0.0 4.6 9.2 0.60| 7.5 4.5 1000 96 11 2 4| 0.0 5.4 5.4| 8.9 0.0 8.9 8.9 0.63| 5.9 3.7 1500 92 13 22 6| 0.0 5.0 5.0| 14.0 0.0 14.0 9.3 0.60| 5.4 3.2 2000 90 15 32 7| 0.3 3.8 4.0| 16.2 0.0 16.2 8.1 0.61| 4.3 2.6 2500 90 15 38 7| 0.4 3.0 3.4| 18.4 0.0 18.4 7.4 0.62| 3.6 2.3 3000 91 16 42 7| 0.5 2.5 3.0| 20.4 0.0 20.4 6.8 0.63| 3.2 2.0 4000 91 17 46 8| 0.4 1.8 2.2| 20.8 -6.5 14.4 3.6 0.43| 2.8 1.2 5000 89 17 44 8| 0.3 1.4 1.7| 20.8 -14.1 6.7 1.3 0.26| 2.5 0.7 6000 87 17 40 9| 0.3 1.1 1.4| 21.7 -20.5 1.2 0.2 0.16| 2.4 0.4 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251204.12.gif