UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122100.upa.cvt Date: 0000Z 21 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 21 DEC 25 Station: VVNB WMO ident: 48820 Latitude: 21.02 Longitude: 105.80 Elevation: 6.00 ------------------------------------------------------------------------------- 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 1019 6 20.6 18.9 90 1.7 19.5 0 0 292.2 294.6 291.9 330.7 13.61 1 1000 166 19.8 18.3 91 1.5 18.8 265 1 293.0 295.3 292.0 330.9 13.35 2 925 836 16.4 14.0 86 2.4 14.8 100 5 296.1 298.0 291.0 327.6 10.92 3 906 1013 15.0 14.8 99 0.2 14.9 100 5 296.4 298.5 291.8 330.3 11.76 4 850 1551 11.6 9.8 89 1.8 10.5 100 7 298.3 299.9 290.1 324.5 8.98 5 811 1943 9.6 6.0 78 3.6 7.6 123 7 300.2 301.5 289.3 321.7 7.25 6 791 2150 8.0 3.8 75 4.2 5.7 135 7 300.6 301.8 288.6 319.6 6.36 7 722 2896 1.6 1.6 100 0.0 1.6 180 7 301.6 302.7 288.5 319.4 5.96 8 712 3008 0.8 0.6 99 0.2 0.7 187 7 301.9 302.9 288.3 318.8 5.62 9 710 3031 0.4 -2.8 79 3.2 -1.1 188 7 301.7 302.5 287.1 315.0 4.38 10 708 3054 3.2 -8.8 41 12.0 -1.8 189 7 305.0 305.6 286.6 313.7 2.77 11 705 3088 3.6 -11.4 32 15.0 -2.3 192 7 305.8 306.3 286.4 313.0 2.27 12 700 3146 3.4 -13.6 28 17.0 -3.0 195 7 306.2 306.6 286.2 312.4 1.91 13 690 3263 4.8 -26.2 8 31.0 -4.2 198 8 309.1 309.2 285.8 311.3 0.65 14 605 4328 3.4 225 12 319.3 15 534 5325 -3.3 -28.3 12 25.0 -10.2 251 17 322.9 323.0 290.4 325.4 0.70 16 500 5840 -7.9 -27.9 18 20.0 -13.1 265 19 323.4 323.6 290.6 326.2 0.77 17 475 6237 -11.7 -29.7 21 18.0 -15.9 271 21 323.5 323.6 290.6 325.9 0.69 18 429 7009 -18.3 -35.3 21 17.0 -21.4 282 24 324.6 324.7 290.6 326.3 0.44 19 400 7530 -21.1 -49.1 6 28.0 -24.4 290 27 327.6 327.6 291.2 328.0 0.11 20 325 9023 -33.1 -55.1 9 22.0 -34.6 276 45 331.1 331.1 292.1 331.3 0.07 21 300 9580 -36.5 -63.5 4 27.0 -37.7 270 52 333.9 333.9 292.8 334.0 0.02 22 288 9864 -37.3 -64.3 4 27.0 -38.5 272 53 336.7 336.7 293.5 336.8 0.02 23 257 10651 -39.3 -69.3 3 30.0 -40.4 278 57 344.9 344.9 295.5 345.0 0.01 24 250 10840 -40.7 -70.7 3 30.0 -41.7 280 58 345.6 345.6 295.7 345.6 0.01 25 200 12320 -51.3 -74.3 5 23.0 -51.7 265 66 351.5 351.5 297.0 351.6 0.01 26 166 13505 -59.7 -79.7 6 20.0 -59.9 261 74 356.7 356.7 298.1 356.8 0.00 27 154 13969 -63.7 -81.5 7 17.8 -63.8 260 77 357.6 357.6 298.2 357.7 0.00 28 150 14130 -65.1 -82.1 8 17.0 -65.2 260 75 357.9 357.9 298.3 357.9 0.00 29 142 14463 -67.7 -82.7 10 15.0 -67.8 261 71 359.0 359.0 298.5 359.1 0.00 30 132 14902 -69.9 -83.9 11 14.0 -69.9 263 65 362.7 362.7 299.2 362.7 0.00 31 100 16530 -77.1 -89.1 13 12.0 -77.1 270 44 378.8 378.8 302.1 378.8 0.00 TRP WND 154 13969 -63.7 -81.5 7 17.8 -63.8 260 77 357.6 357.6 298.2 357.7 0.00 Sounding variables and indices 1000-500 mb thick: 5674.00 m Freezing level: 568.97 mb = 4834.13 m = 15859.81 ft Wetbulb zero: 711.22 mb = 3016.96 m = 9898.05 ft Precipitable water: 1.24 inches Sfc-500 mean rel hum: 74.04 % Est. max temperature: 26.10 C = 78.98 F Sfc-Lift cond lev (LCL): 994.13 mb = 216.56 m = 710.49 ft T: 19.54 C 700-500 lapse rate: 4.19 C/km ThetaE index: 19.05 C Layer 850.0- 605.0 mb Conv cond level (CCL): 914.91 mb = 929.38 m = 3049.11 ft Mean mixing ratio: 12.31 g/kg Conv temperature: 24.70 C = 76.46 F Cap Strength: 5.72 C Lifted Index: 3.56 C Risk: None Lifted Index @300 mb: 4.11 C Lifted Index @700 mb: -0.72 C Showalter Index: 6.08 C Risk: None Total Totals Index: 37.20 C Risk: None Vertical Totals Index: 19.50 C Cross Totals Index: 17.70 C K Index: 12.30 Risk: None Sweat Index: 150.60 Risk: None Energy Index: 0.40 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 120.97 J/kg Max Up Vert Vel: 15.55 m/s Conv Inhibition (B-): 10.80 J/kg Cap Strength: 5.65 C Lift Cond Lev (LCL): 942.21 mb = 677.59 m = 2223.05 ft Lev Free Conv (LFC): 877.21 mb = 1285.13 m = 4216.27 ft Equ Level (EL): 697.21 mb = 3178.39 m = 10427.65 ft B at Equ Level: 120.85 J/kg Max Parcel Lev (MPL): 607.21 mb = 4298.57 m = 14102.74 ft Wind level data Storm motion: 259 at 7 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 1019 6 0 0 -0.0 -0.0 | 79 7 -6.9 -1.3 1 1000 166 265 1 1.0 0.1 | 79 6 -5.9 -1.2 2 925 836 100 5 -4.9 0.9 | 88 12 -11.8 -0.4 3 850 1551 100 7 -6.9 1.2 | 90 14 -13.8 -0.1 4 700 3146 195 7 1.8 6.8 | 137 7 -5.1 5.5 5 500 5840 265 19 18.9 1.7 | 268 12 12.0 0.4 6 400 7530 290 27 25.4 -9.2 | 300 21 18.5 -10.5 7 300 9580 270 52 52.0 -0.0 | 272 45 45.1 -1.3 8 250 10840 280 58 57.1 -10.1 | 283 51 50.2 -11.4 9 200 12320 265 66 65.7 5.8 | 266 59 58.8 4.5 10 154 13969 260 77 75.8 13.4 | 260 70 68.9 12.1 11 150 14130 260 75 73.9 13.0 | 260 68 66.9 11.7 12 100 16530 270 44 44.0 -0.0 | 272 37 37.1 -1.3 Wind Parameters Mean winds (0-6000m): 229.4 at 9.4 knts Storm direction: 259.4 at 7.0 knts Shear (0-3000m) pos: 1.6 neg: 1.2 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 53.4 deg Storm rel helicity (0-3000m) pos: 33.2 neg: -8.9 tot: 24.3 m^2/s^2 ave: 8.1 10^-3 m/s^2 rel: 0.37 Storm rel vorticity (0-3000m) horiz: 4.0 stream: 1.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 14.24 Bulk Shear: 8.49 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 ------------------------------------------------------------------------------- 500 206 2 91 6| 0.0 3.1 3.1| 4.6 -0.8 3.8 7.6 0.52| 4.9 2.6 1000 103 3 86 10| 0.0 2.8 2.8| 4.8 -8.9 -4.1 -4.1 -0.03| 5.7 -0.2 1500 101 4 87 11| 0.0 2.4 2.4| 5.7 -8.9 -3.2 -2.1 -0.01| 4.3 -0.0 2000 105 5 90 12| 0.8 1.8 2.6| 16.9 -8.9 8.0 4.0 0.19| 4.1 0.8 2500 115 5 95 12| 1.4 1.4 2.8| 26.8 -8.9 17.9 7.1 0.32| 4.0 1.3 3000 126 6 100 12| 1.6 1.2 2.8| 33.2 -8.9 24.3 8.1 0.37| 4.0 1.5 4000 156 6 115 10| 2.0 0.9 2.8| 44.5 -8.9 35.6 8.9 0.49| 3.8 1.9 5000 193 8 140 8| 2.2 0.7 2.9| 59.5 -8.9 50.6 10.1 0.59| 3.8 2.2 6000 229 9 183 5| 2.3 0.6 2.9| 80.3 -8.9 71.4 11.9 0.64| 3.9 2.5 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251221.00.gif