UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122612.upa.cvt Date: 1200Z 26 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 26 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 1018 6 19.0 4.0 37 15.0 11.0 105 1 290.7 291.5 283.4 305.1 5.00 1 1000 157 18.0 4.0 39 14.0 10.6 90 3 291.1 292.1 283.7 305.8 5.09 2 925 817 12.0 3.0 54 9.0 7.4 150 7 291.6 292.5 284.0 306.4 5.13 3 850 1518 6.4 4.0 85 2.4 5.1 230 11 292.9 293.9 285.4 310.2 6.00 4 846 1557 6.0 3.8 86 2.2 4.9 231 11 292.8 293.9 285.3 310.0 5.95 5 839 1625 6.4 4.5 88 1.9 5.4 232 12 293.9 295.1 286.1 312.2 6.30 6 836 1655 8.6 5.1 79 3.5 6.7 233 12 296.6 297.8 287.3 315.9 6.60 7 824 1775 11.0 3.0 58 8.0 6.7 235 13 300.3 301.4 287.9 317.5 5.77 8 819 1826 11.0 3.0 58 8.0 6.7 236 14 300.8 301.9 288.2 318.2 5.80 9 706 3046 1.4 0.7 95 0.7 1.0 259 24 303.3 304.3 288.9 320.5 5.71 10 701 3103 4.6 -13.4 26 18.0 -2.3 260 25 307.5 307.8 286.6 313.7 1.94 11 700 3115 5.2 -16.8 19 22.0 -2.7 260 25 308.2 308.5 286.4 313.0 1.46 12 697 3150 7.0 -40.0 2 47.0 -3.7 261 25 310.6 310.6 285.8 311.2 0.17 13 691 3221 8.0 -38.0 2 46.0 -3.2 262 26 312.5 312.5 286.5 313.3 0.21 14 681 3341 8.2 -38.8 2 47.0 -3.2 263 27 314.0 314.1 287.0 314.7 0.20 15 531 5354 -0.5 -45.5 2 45.0 -9.5 293 41 326.8 326.8 290.9 327.2 0.12 16 500 5830 -4.7 -47.7 2 43.0 -12.3 300 44 327.3 327.3 291.0 327.7 0.10 17 429 7018 -12.9 -48.9 3 36.0 -18.3 290 58 331.5 331.5 292.2 331.9 0.10 18 400 7550 -15.9 -50.9 3 35.0 -20.6 285 64 334.3 334.3 293.0 334.7 0.09 19 351 8518 -22.9 -42.9 14 20.0 -25.8 278 67 337.6 337.7 294.0 338.6 0.25 20 319 9211 -27.3 -50.3 9 23.0 -29.7 273 70 340.9 340.9 294.7 341.4 0.12 21 317 9256 -26.7 -51.7 8 25.0 -29.3 273 70 342.3 342.3 295.0 342.7 0.10 22 300 9650 -30.3 -53.3 9 23.0 -32.3 270 71 342.7 342.7 295.0 343.0 0.09 23 262 10599 -38.7 -52.7 21 14.0 -39.6 263 70 343.9 343.9 295.4 344.3 0.11 24 254 10812 -40.3 -59.3 11 19.0 -41.2 261 69 344.6 344.6 295.4 344.8 0.05 25 250 10920 -40.9 -56.9 16 16.0 -41.8 260 69 345.3 345.3 295.6 345.6 0.07 26 200 12410 -51.1 -67.1 13 16.0 -51.5 260 71 351.8 351.9 297.1 351.9 0.02 27 190 12742 -53.1 -71.1 9 18.0 -53.4 257 73 353.8 353.8 297.5 353.9 0.01 28 164 13672 -60.9 -76.5 11 15.5 -61.1 250 77 355.9 355.9 297.9 355.9 0.01 29 150 14220 -65.7 -79.7 13 14.0 -65.8 250 69 356.9 356.9 298.1 356.9 0.00 30 135 14850 -71.5 -79.5 29 8.0 -71.5 259 58 357.5 357.5 298.2 357.6 0.01 31 134 14893 -71.9 -79.9 29 8.0 -71.9 260 57 357.6 357.6 298.2 357.6 0.01 32 100 16590 -77.7 -89.7 13 12.0 -77.7 285 27 377.6 377.6 301.9 377.6 0.00 TRP WND 164 13672 -60.9 -76.5 11 15.5 -61.1 250 77 355.9 355.9 297.9 355.9 0.01 Sounding variables and indices 1000-500 mb thick: 5673.00 m Freezing level: 539.62 mb = 5238.60 m = 17186.81 ft Wetbulb zero: 704.45 mb = 3063.44 m = 10050.55 ft Precipitable water: 0.72 inches Sfc-500 mean rel hum: 35.75 % Est. max temperature: 20.89 C = 69.61 F Sfc-Lift cond lev (LCL): 813.37 mb = 1882.54 m = 6176.23 ft T: 10.55 C 700-500 lapse rate: 3.65 C/km ThetaE index: 9.30 C Layer 701.0- 691.0 mb Conv cond level (CCL): 490.64 mb = 5976.65 m = 19608.19 ft Mean mixing ratio: 5.11 g/kg Conv temperature: 56.37 C = 133.46 F Cap Strength: 20.81 C Lifted Index: 20.18 C Risk: None Lifted Index @300 mb: 26.11 C Lifted Index @700 mb: 11.33 C Showalter Index: 17.49 C Risk: None Total Totals Index: 19.80 C Risk: None Vertical Totals Index: 11.10 C Cross Totals Index: 8.70 C K Index: -6.90 Risk: None Sweat Index: 114.00 Risk: None Energy Index: 3.86 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.03 J/kg Max Up Vert Vel: 2.02 m/s Conv Inhibition (B-): 13980.02 J/kg Cap Strength: 20.74 C Lift Cond Lev (LCL): 809.18 mb = 1924.97 m = 6315.45 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 306 at 18 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 1018 6 105 1 -1.0 0.3 | 125 19 -15.2 10.6 1 1000 157 90 3 -3.0 0.0 | 121 20 -17.3 10.4 2 925 817 150 7 -3.5 6.1 | 133 24 -17.8 16.4 3 850 1518 230 11 8.4 7.1 | 161 18 -5.9 17.4 4 700 3115 260 25 24.6 4.3 | 215 18 10.3 14.7 5 500 5830 300 44 38.1 -22.0 | 296 27 23.8 -11.6 6 400 7550 285 64 61.8 -16.6 | 277 48 47.5 -6.2 7 300 9650 270 71 71.0 -0.0 | 260 58 56.7 10.4 8 250 10920 260 69 68.0 12.0 | 247 58 53.7 22.4 9 200 12410 260 71 69.9 12.3 | 248 60 55.6 22.7 10 164 13672 250 77 72.4 26.3 | 238 69 58.1 36.7 11 150 14220 250 69 64.8 23.6 | 236 61 50.6 34.0 12 100 16590 285 27 26.1 -7.0 | 254 12 11.8 3.4 Wind Parameters Mean winds (0-6000m): 276.0 at 23.5 knts Storm direction: 306.0 at 17.7 knts Shear (0-3000m) pos: 4.3 neg: 0.0 tot: 4.3 10-3/s Storm rel Dir Shear (0-3000m): 86.1 deg Storm rel helicity (0-3000m) pos: 170.3 neg: -6.5 tot: 163.8 m^2/s^2 ave: 54.6 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 5.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.02 Bulk Shear: 95.79 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 ------------------------------------------------------------------------------- 500 107 3 123 21| 4.3 0.0 4.3| 8.5 -6.5 2.0 4.0 0.04| 5.2 0.2 1000 139 5 129 23| 4.0 0.0 4.0| 47.7 -6.5 41.1 41.1 0.55| 6.0 3.3 1500 173 7 138 23| 3.9 0.0 3.9| 94.3 -6.5 87.8 58.5 0.67| 7.4 5.0 2000 203 8 148 21| 4.1 0.0 4.1|118.3 -6.5 111.8 55.9 0.73| 6.8 5.0 2500 222 10 157 19| 4.2 0.0 4.2|143.4 -6.5 136.9 54.7 0.78| 6.5 5.1 3000 236 12 166 18| 4.3 0.0 4.3|170.3 -6.5 163.8 54.6 0.81| 6.4 5.2 4000 251 16 182 16| 4.1 0.0 4.1|219.7 -6.5 213.2 53.3 0.85| 6.1 5.2 5000 264 20 203 14| 4.0 0.0 4.0|278.5 -6.5 272.0 54.4 0.87| 6.1 5.3 6000 276 24 229 12| 4.0 0.0 4.0|337.3 -12.1 325.2 54.2 0.84| 6.1 5.1 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251226.12.gif