UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122800.upa.cvt Date: 0000Z 28 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 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 1020 6 17.2 10.2 63 7.0 13.1 10 1 288.7 290.1 285.4 310.3 7.67 1 1000 171 15.6 9.6 67 6.0 12.1 25 3 288.8 290.1 285.3 309.9 7.52 2 968 446 13.4 7.4 67 6.0 10.1 85 3 289.2 290.4 284.6 308.2 6.68 3 925 828 11.4 6.6 72 4.8 8.8 170 3 291.0 292.1 285.2 309.9 6.62 4 850 1530 7.4 7.4 100 0.0 7.4 215 11 293.9 295.3 287.3 315.8 7.62 5 833 1696 6.4 6.4 100 0.0 6.4 224 13 294.5 295.8 287.3 315.5 7.25 6 831 1716 6.6 6.0 96 0.6 6.3 225 14 295.0 296.2 287.2 315.5 7.07 7 828 1746 10.8 5.8 71 5.0 8.0 226 14 299.7 301.0 288.9 320.4 7.00 8 823 1797 11.2 5.2 67 6.0 7.8 229 15 300.6 301.9 288.9 320.7 6.75 9 762 2434 6.4 2.5 76 3.9 4.3 263 23 302.1 303.3 288.8 320.2 6.02 10 728 2811 9.0 -10.0 25 19.0 0.9 283 29 309.0 309.4 287.7 316.8 2.45 11 712 2995 8.4 -16.6 15 25.0 -0.9 293 31 310.3 310.6 287.1 315.1 1.46 12 700 3136 10.0 -38.0 2 48.0 -2.1 300 33 313.6 313.6 286.8 314.3 0.21 13 683 3340 10.2 -28.8 5 39.0 -1.7 298 34 316.0 316.1 288.1 317.8 0.52 14 536 5302 -4.9 -23.9 21 19.0 -10.5 276 40 320.6 320.8 290.0 324.2 1.03 15 524 5480 -3.7 -36.7 6 33.0 -11.1 274 41 324.2 324.2 290.3 325.3 0.31 16 500 5850 -5.3 -30.3 12 25.0 -11.8 270 42 326.6 326.7 291.4 328.8 0.62 17 400 7550 -17.5 -45.5 7 28.0 -21.5 270 52 332.2 332.3 292.5 332.9 0.16 18 342 8706 -25.5 -49.5 9 24.0 -28.1 273 57 336.6 336.6 293.6 337.1 0.12 19 323 9120 -26.7 -61.7 2 35.0 -29.4 274 59 340.5 340.5 294.4 340.6 0.03 20 309 9439 -29.3 -62.3 3 33.0 -31.6 274 61 341.2 341.2 294.6 341.3 0.03 21 300 9650 -29.7 -62.7 3 33.0 -32.0 275 62 343.5 343.5 295.2 343.6 0.03 22 263 10579 -35.7 -66.7 3 31.0 -37.2 271 65 347.9 347.9 296.2 348.0 0.02 23 250 10930 -38.3 -67.3 3 29.0 -39.5 270 66 349.1 349.1 296.4 349.2 0.02 24 200 12420 -50.9 -71.9 7 21.0 -51.3 260 68 352.2 352.2 297.1 352.2 0.01 25 182 13026 -56.7 -70.7 16 14.0 -56.9 250 71 352.4 352.4 297.1 352.4 0.02 26 174 13310 -58.4 -74.6 11 16.2 -58.6 245 73 354.1 354.1 297.5 354.1 0.01 27 158 13911 -62.1 -83.1 4 21.0 -62.3 251 58 357.7 357.7 298.2 357.8 0.00 28 150 14230 -64.7 -82.7 7 18.0 -64.8 255 50 358.6 358.6 298.4 358.6 0.00 29 117 15697 -77.7 -84.7 31 7.0 -77.7 270 31 361.0 361.0 298.9 361.0 0.00 30 116 15746 -77.9 -84.9 31 7.0 -77.9 271 30 361.5 361.5 299.0 361.6 0.00 31 100 16590 -79.3 -89.3 18 10.0 -79.3 280 19 374.5 374.5 301.4 374.5 0.00 TRP WND 174 13310 -58.4 -74.6 11 16.2 -58.6 245 73 354.1 354.1 297.5 354.1 0.01 Sounding variables and indices 1000-500 mb thick: 5679.00 m Freezing level: 583.70 mb = 4665.38 m = 15306.16 ft Wetbulb zero: 720.08 mb = 2901.58 m = 9519.50 ft Precipitable water: 0.86 inches Sfc-500 mean rel hum: 40.94 % Est. max temperature: 21.61 C = 70.90 F Sfc-Lift cond lev (LCL): 918.79 mb = 883.96 m = 2900.10 ft T: 11.08 C 700-500 lapse rate: 5.64 C/km ThetaE index: 6.39 C Layer 762.0- 683.0 mb Conv cond level (CCL): 588.25 mb = 4549.01 m = 14924.40 ft Mean mixing ratio: 6.97 g/kg Conv temperature: 47.62 C = 117.71 F Cap Strength: 16.32 C Lifted Index: 17.47 C Risk: None Lifted Index @300 mb: 24.48 C Lifted Index @700 mb: 14.43 C Showalter Index: 13.46 C Risk: None Total Totals Index: 25.40 C Risk: None Vertical Totals Index: 12.70 C Cross Totals Index: 12.70 C K Index: -27.90 Risk: None Sweat Index: 152.80 Risk: None Energy Index: 2.83 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.63 J/kg Max Up Vert Vel: 4.39 m/s Conv Inhibition (B-): 12870.95 J/kg Cap Strength: 17.03 C Lift Cond Lev (LCL): 888.60 mb = 1161.29 m = 3809.96 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 311 at 19 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 1020 6 10 1 -0.2 -1.0 | 128 19 -14.6 11.4 1 1000 171 25 3 -1.3 -2.7 | 122 18 -15.7 9.6 2 925 828 170 3 -0.5 3.0 | 136 21 -15.0 15.3 3 850 1530 215 11 6.3 9.0 | 159 23 -8.1 21.4 4 700 3136 300 33 28.6 -16.5 | 286 15 14.1 -4.1 5 500 5850 270 42 42.0 -0.0 | 246 30 27.6 12.4 6 400 7550 270 52 52.0 -0.0 | 252 40 37.6 12.4 7 300 9650 275 62 61.8 -5.4 | 262 48 47.3 7.0 8 250 10930 270 66 66.0 -0.0 | 257 53 51.6 12.4 9 200 12420 260 68 67.0 11.8 | 245 58 52.5 24.2 10 174 13310 245 73 66.2 30.9 | 230 67 51.7 43.2 11 150 14230 255 50 48.3 12.9 | 233 42 33.9 25.3 12 100 16590 280 19 18.7 -3.3 | 205 10 4.3 9.1 Wind Parameters Mean winds (0-6000m): 280.6 at 25.3 knts Storm direction: 310.6 at 19.0 knts Shear (0-3000m) pos: 5.3 neg: 0.0 tot: 5.3 10-3/s Storm rel Dir Shear (0-3000m): 141.7 deg Storm rel helicity (0-3000m) pos: 251.5 neg: -10.1 tot: 241.4 m^2/s^2 ave: 80.5 10^-3 m/s^2 rel: 0.86 Storm rel vorticity (0-3000m) horiz: 9.4 stream: 8.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.10 Bulk Shear: 97.34 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 50 3 123 20| 3.2 0.0 3.2| 9.7 -10.1 -0.4 -0.8 -0.05| 5.8 -0.3 1000 122 3 129 22| 3.1 0.0 3.1| 41.0 -10.1 30.9 30.9 0.45| 5.9 2.6 1500 197 5 142 21| 4.0 0.0 4.0| 84.5 -10.1 74.4 49.6 0.66| 6.4 4.2 2000 218 7 150 21| 4.7 0.0 4.7|138.8 -10.1 128.7 64.3 0.76| 7.2 5.5 2500 241 10 161 18| 5.1 0.0 5.1|194.7 -10.1 184.6 73.8 0.82| 8.2 6.7 3000 267 13 173 13| 5.3 0.0 5.3|251.5 -10.1 241.4 80.5 0.86| 9.4 8.0 4000 284 18 200 9| 4.4 0.5 4.9|266.2 -29.5 236.7 59.2 0.72| 8.3 6.0 5000 284 22 224 10| 3.5 1.2 4.7|266.2 -61.5 204.7 40.9 0.56| 7.5 4.2 6000 281 25 234 13| 2.9 1.7 4.6|268.1 -96.4 171.7 28.6 0.45| 6.9 3.1 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251228.00.gif