UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122812.upa.cvt Date: 1200Z 28 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 28 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 1017 6 19.6 11.6 60 8.0 14.7 210 1 291.3 292.8 287.2 315.4 8.46 1 1000 149 18.4 11.4 64 7.0 14.2 150 3 291.5 293.1 287.3 315.7 8.49 2 925 811 13.0 10.8 86 2.2 11.7 180 9 292.6 294.2 288.0 317.8 8.82 3 918 875 12.4 10.6 89 1.8 11.3 184 9 292.6 294.2 288.0 317.7 8.77 4 850 1518 8.8 8.8 100 0.0 8.8 225 5 295.4 296.9 288.6 319.6 8.39 5 799 2029 6.8 6.7 99 0.1 6.8 243 9 298.5 299.9 289.1 321.2 7.73 6 797 2049 8.4 5.9 84 2.5 7.0 243 9 300.4 301.8 289.4 322.1 7.32 7 792 2101 9.2 2.2 62 7.0 5.5 245 9 301.8 302.9 288.3 318.8 5.67 8 774 2293 13.0 -8.0 22 21.0 3.5 252 11 307.9 308.4 287.6 316.5 2.70 9 762 2425 13.6 -12.4 15 26.0 2.7 256 12 309.9 310.3 287.5 316.2 1.93 10 735 2728 13.4 -15.6 12 29.0 1.8 266 14 312.9 313.2 288.1 318.0 1.54 11 700 3137 10.6 -14.4 16 25.0 0.5 280 17 314.2 314.6 288.8 320.1 1.79 12 621 4122 5.4 -27.6 7 33.0 -4.6 280 24 319.2 319.3 289.2 321.5 0.64 13 586 4591 1.2 -26.8 10 28.0 -7.0 280 27 319.7 319.8 289.4 322.2 0.73 14 503 5803 -4.7 -42.7 3 38.0 -12.2 280 36 326.7 326.8 291.0 327.4 0.18 15 500 5850 -4.9 -42.9 3 38.0 -12.3 280 36 327.1 327.1 291.0 327.7 0.17 16 435 6933 -13.3 -48.3 4 35.0 -18.4 280 48 329.7 329.7 291.7 330.1 0.11 17 400 7570 -16.7 -42.7 9 26.0 -20.9 280 56 333.3 333.3 292.8 334.1 0.22 18 337 8835 -23.3 -61.3 2 38.0 -26.6 274 54 341.0 341.0 294.6 341.1 0.03 19 300 9670 -30.9 -61.9 3 31.0 -32.9 270 52 341.8 341.8 294.8 342.0 0.03 20 256 10777 -39.7 -63.7 6 24.0 -40.8 253 62 344.7 344.7 295.5 344.8 0.03 21 250 10940 -39.5 -65.5 5 26.0 -40.6 250 64 347.3 347.3 296.1 347.4 0.02 22 247 11022 -39.7 -65.7 5 26.0 -40.8 251 64 348.2 348.2 296.3 348.3 0.02 23 200 12430 -50.7 -71.7 7 21.0 -51.1 260 68 352.5 352.5 297.2 352.5 0.01 24 185 12931 -54.0 -76.4 5 22.4 -54.4 255 71 355.0 355.0 297.7 355.1 0.01 25 159 13882 -60.5 -85.5 2 25.0 -60.7 248 59 359.8 359.8 298.7 359.8 0.00 26 150 14240 -63.9 -85.9 3 22.0 -64.0 245 54 360.0 360.0 298.7 360.0 0.00 27 110 16068 -79.3 -88.3 21 9.0 -79.3 270 40 364.4 364.4 299.5 364.4 0.00 28 100 16610 -77.9 -88.9 15 11.0 -77.9 250 23 377.2 377.2 301.8 377.2 0.00 TRP 110 16068 -79.3 -88.3 21 9.0 -79.3 270 40 364.4 364.4 299.5 364.4 0.00 WND 185 12931 -54.0 -76.4 5 22.4 -54.4 255 71 355.0 355.0 297.7 355.1 0.01 Sounding variables and indices 1000-500 mb thick: 5701.00 m Freezing level: 569.12 mb = 4837.19 m = 15869.85 ft Wetbulb zero: 692.34 mb = 3227.45 m = 10588.61 ft Precipitable water: 0.91 inches Sfc-500 mean rel hum: 38.06 % Est. max temperature: 22.94 C = 73.28 F Sfc-Lift cond lev (LCL): 903.10 mb = 1011.65 m = 3319.04 ft T: 11.63 C 700-500 lapse rate: 5.71 C/km ThetaE index: 5.92 C Layer 792.0- 735.0 mb Conv cond level (CCL): 861.42 mb = 1406.47 m = 4614.35 ft Mean mixing ratio: 8.64 g/kg Conv temperature: 23.17 C = 73.70 F Cap Strength: 13.27 C Lifted Index: 13.42 C Risk: None Lifted Index @300 mb: 18.24 C Lifted Index @700 mb: 11.63 C Showalter Index: 11.72 C Risk: None Total Totals Index: 27.40 C Risk: None Vertical Totals Index: 13.70 C Cross Totals Index: 13.70 C K Index: -2.50 Risk: None Sweat Index: 151.60 Risk: None Energy Index: 1.89 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.75 J/kg Max Up Vert Vel: 2.35 m/s Conv Inhibition (B-): 10652.89 J/kg Cap Strength: 13.10 C Lift Cond Lev (LCL): 898.46 mb = 1054.76 m = 3460.44 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 303 at 13 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 1017 6 210 1 0.5 0.9 | 127 13 -10.6 8.1 1 1000 149 150 3 -1.5 2.6 | 128 16 -12.6 9.8 2 925 811 180 9 0.0 9.0 | 146 20 -11.1 16.2 3 850 1518 225 5 3.5 3.5 | 145 13 -7.5 10.7 4 700 3137 280 17 16.7 -3.0 | 233 7 5.7 4.2 5 500 5850 280 36 35.5 -6.3 | 268 24 24.4 0.9 6 400 7570 280 56 55.1 -9.7 | 273 44 44.1 -2.5 7 300 9670 270 52 52.0 -0.0 | 260 42 40.9 7.2 8 250 10940 250 64 60.1 21.9 | 239 57 49.1 29.1 9 200 12430 260 68 67.0 11.8 | 251 59 55.9 19.0 10 185 12931 255 71 68.6 18.4 | 246 63 57.5 25.6 11 150 14240 245 54 48.9 22.8 | 232 48 37.9 30.0 12 110 16068 270 40 40.0 -0.0 | 256 30 28.9 7.2 13 100 16610 250 23 21.6 7.9 | 215 18 10.5 15.1 Wind Parameters Mean winds (0-6000m): 273.0 at 17.6 knts Storm direction: 303.0 at 13.2 knts Shear (0-3000m) pos: 3.3 neg: 1.0 tot: 4.2 10-3/s Storm rel Dir Shear (0-3000m): 93.6 deg Storm rel helicity (0-3000m) pos: 68.5 neg: -3.4 tot: 65.1 m^2/s^2 ave: 21.7 10^-3 m/s^2 rel: 0.62 Storm rel vorticity (0-3000m) horiz: 5.3 stream: 3.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.06 Bulk Shear: 49.60 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 ------------------------------------------------------------------------------- 500 161 4 131 16| 0.0 5.7 5.7| 12.4 -0.5 11.9 23.8 0.44| 6.3 2.8 1000 176 6 139 17| 1.8 2.9 4.7| 31.1 -0.5 30.6 30.6 0.56| 5.9 3.3 1500 185 6 141 17| 1.9 1.9 3.8| 31.8 -3.4 28.4 18.9 0.36| 5.5 2.0 2000 198 6 145 16| 2.4 1.4 3.8| 44.6 -3.4 41.2 20.6 0.48| 5.2 2.5 2500 216 7 152 15| 2.9 1.1 4.0| 57.0 -3.4 53.6 21.4 0.56| 5.2 2.9 3000 237 8 161 12| 3.3 1.0 4.2| 68.5 -3.4 65.1 21.7 0.62| 5.3 3.3 4000 259 11 178 9| 2.9 0.6 3.6| 79.8 -3.4 76.4 19.1 0.63| 4.9 3.1 5000 269 14 202 8| 2.3 0.9 3.3| 89.4 -3.4 85.9 17.2 0.59| 4.7 2.7 6000 273 18 226 9| 2.0 1.4 3.3| 99.9 -3.4 96.5 16.1 0.53| 4.5 2.4 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251228.12.gif