UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121912.upa.cvt Date: 1200Z 19 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 19 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 1012 6 22.8 17.9 74 4.9 19.5 135 5 294.9 297.3 292.2 331.8 12.85 1 1000 113 22.0 17.9 78 4.1 19.2 130 11 295.1 297.5 292.4 332.5 13.01 2 960 467 18.6 17.3 92 1.3 17.7 146 11 295.2 297.5 292.4 332.6 13.05 3 925 786 16.8 14.7 87 2.1 15.4 160 11 296.5 298.6 291.6 329.5 11.44 4 886 1152 14.4 12.4 88 2.0 13.1 191 10 297.7 299.5 291.0 327.5 10.26 5 879 1219 15.2 6.2 55 9.0 10.0 196 10 299.2 300.4 288.5 319.2 6.77 6 870 1307 15.2 10.5 73 4.7 12.3 203 10 300.1 301.7 290.9 327.1 9.20 7 850 1504 14.6 7.6 63 7.0 10.4 220 9 301.4 302.9 290.1 324.4 7.72 8 833 1675 14.0 5.0 55 9.0 8.9 223 9 302.6 303.8 289.5 322.3 6.57 9 770 2331 8.2 0.2 57 8.0 4.1 233 11 303.2 304.1 288.2 318.5 5.04 10 721 2872 6.0 -18.0 16 24.0 -2.3 241 12 306.5 306.8 285.6 310.7 1.28 11 704 3068 7.8 -33.2 4 41.0 -3.0 244 13 310.6 310.7 285.9 311.8 0.33 12 700 3115 7.6 -30.4 5 38.0 -3.0 245 13 310.9 311.0 286.2 312.4 0.44 13 668 3500 7.6 -33.4 4 41.0 -3.4 253 14 315.1 315.2 287.5 316.3 0.34 14 583 4602 -0.9 -38.9 4 38.0 -9.1 275 18 317.7 317.7 288.2 318.5 0.23 15 578 4671 -0.3 -46.3 2 46.0 -9.0 276 19 319.2 319.2 288.6 319.6 0.10 16 500 5810 -9.5 -47.5 3 38.0 -15.4 300 23 321.5 321.5 289.3 321.9 0.10 17 487 6012 -11.3 -43.3 5 32.0 -16.6 300 27 321.7 321.7 289.5 322.3 0.17 18 409 7326 -20.5 -56.5 2 36.0 -23.9 300 53 326.3 326.3 290.7 326.4 0.04 19 400 7490 -20.5 -61.5 1 41.0 -24.1 300 56 328.3 328.3 291.3 328.4 0.02 20 366 8141 -24.1 -62.1 2 38.0 -27.1 292 55 332.0 332.0 292.3 332.1 0.02 21 300 9560 -33.7 -67.7 2 34.0 -35.3 275 54 337.9 337.9 293.8 337.9 0.01 22 250 10820 -42.3 -70.3 3 28.0 -43.2 270 71 343.2 343.2 295.1 343.2 0.01 23 249 10847 -42.5 -70.5 3 28.0 -43.3 270 71 343.3 343.3 295.1 343.3 0.01 24 218 11732 -47.3 -74.3 3 27.0 -47.9 264 71 349.2 349.2 296.4 349.2 0.01 25 210 11979 -46.3 -77.3 2 31.0 -47.0 262 71 354.5 354.5 297.6 354.5 0.00 26 200 12300 -48.9 -76.9 2 28.0 -49.4 260 71 355.3 355.3 297.8 355.4 0.01 27 150 14130 -63.1 -81.1 7 18.0 -63.2 250 83 361.4 361.4 299.0 361.4 0.00 28 149 14171 -63.4 -81.2 7 17.8 -63.6 255 83 361.5 361.5 299.0 361.6 0.00 29 134 14817 -68.3 -83.3 10 15.0 -68.4 258 76 364.0 364.0 299.5 364.0 0.00 30 100 16540 -76.9 -90.9 9 14.0 -76.9 265 56 379.1 379.1 302.1 379.2 0.00 TRP WND 149 14171 -63.4 -81.2 7 17.8 -63.6 255 83 361.5 361.5 299.0 361.6 0.00 Sounding variables and indices 1000-500 mb thick: 5697.00 m Freezing level: 592.00 mb = 4485.43 m = 14715.79 ft Wetbulb zero: 738.67 mb = 2672.69 m = 8768.55 ft Precipitable water: 1.01 inches Sfc-500 mean rel hum: 33.39 % Est. max temperature: 28.49 C = 83.28 F Sfc-Lift cond lev (LCL): 941.85 mb = 630.94 m = 2069.98 ft T: 17.67 C 700-500 lapse rate: 6.35 C/km ThetaE index: 16.41 C Layer 850.0- 704.0 mb Conv cond level (CCL): 908.09 mb = 942.86 m = 3093.32 ft Mean mixing ratio: 12.49 g/kg Conv temperature: 24.86 C = 76.76 F Cap Strength: 4.71 C Lifted Index: 1.03 C Risk: Showers probable Lifted Index @300 mb: 5.60 C Lifted Index @700 mb: 2.72 C Showalter Index: 4.54 C Risk: None Total Totals Index: 41.20 C Risk: None Vertical Totals Index: 24.10 C Cross Totals Index: 17.10 C K Index: -6.30 Risk: None Sweat Index: 132.20 Risk: None Energy Index: -0.31 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 14.66 J/kg Max Up Vert Vel: 5.42 m/s Conv Inhibition (B-): 52.47 J/kg Cap Strength: 4.69 C Lift Cond Lev (LCL): 927.12 mb = 766.35 m = 2514.25 ft Lev Free Conv (LFC): 782.12 mb = 2200.57 m = 7219.62 ft Equ Level (EL): 722.12 mb = 2859.12 m = 9380.21 ft B at Equ Level: 13.97 J/kg Max Parcel Lev (MPL): 702.12 mb = 3090.09 m = 10137.98 ft Wind level data Storm motion: 289 at 11 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 1012 6 135 5 -3.5 3.5 | 117 16 -13.8 7.1 1 1000 113 130 11 -8.4 7.1 | 120 22 -18.7 10.6 2 925 786 160 11 -3.8 10.3 | 135 20 -14.1 13.9 3 850 1504 220 9 5.8 6.9 | 157 11 -4.5 10.5 4 700 3115 245 13 11.8 5.5 | 189 9 1.5 9.1 5 500 5810 300 23 19.9 -11.5 | 310 12 9.6 -7.9 6 400 7490 300 56 48.5 -28.0 | 303 45 38.2 -24.4 7 300 9560 275 54 53.8 -4.7 | 272 44 43.5 -1.1 8 250 10820 270 71 71.0 -0.0 | 267 61 60.7 3.6 9 200 12300 260 71 69.9 12.3 | 255 62 59.6 15.9 10 150 14130 250 83 78.0 28.4 | 245 75 67.7 31.9 11 149 14171 255 83 80.2 21.5 | 250 74 69.9 25.0 12 100 16540 265 56 55.8 4.9 | 259 46 45.5 8.4 Wind Parameters Mean winds (0-6000m): 259.1 at 14.5 knts Storm direction: 289.1 at 10.9 knts Shear (0-3000m) pos: 2.6 neg: 0.0 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 69.5 deg Storm rel helicity (0-3000m) pos: 75.8 neg: 0.0 tot: 75.8 m^2/s^2 ave: 25.3 10^-3 m/s^2 rel: 0.64 Storm rel vorticity (0-3000m) horiz: 4.8 stream: 3.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.23 Bulk Shear: 62.92 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 ------------------------------------------------------------------------------- 500 138 10 123 21| 6.4 0.0 6.4| 21.8 0.0 21.8 43.6 0.45| 9.3 4.1 1000 149 11 129 20| 3.9 0.0 3.9| 46.7 0.0 46.7 46.7 0.60| 7.7 4.6 1500 163 10 135 19| 3.4 0.0 3.4| 61.0 0.0 61.0 40.7 0.57| 7.6 4.3 2000 177 10 142 17| 3.0 0.0 3.0| 66.0 0.0 66.0 33.0 0.59| 6.1 3.6 2500 191 10 148 16| 2.7 0.0 2.7| 70.9 0.0 70.9 28.4 0.62| 5.3 3.3 3000 203 11 155 15| 2.6 0.0 2.6| 75.8 0.0 75.8 25.3 0.64| 4.8 3.1 4000 221 12 167 13| 2.5 0.0 2.5| 89.5 0.0 89.5 22.4 0.70| 4.4 3.1 5000 240 13 185 10| 2.5 0.0 2.5|105.7 0.0 105.7 21.1 0.75| 4.3 3.2 6000 259 15 212 7| 2.7 0.0 2.7|122.6 -2.0 120.6 20.1 0.70| 4.5 3.1 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251219.12.gif