UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122000.upa.cvt Date: 0000Z 20 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 20 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 1015 6 20.8 19.2 91 1.6 19.7 155 3 292.7 295.2 292.3 332.2 13.92 1 1000 134 19.8 18.8 94 1.0 19.1 140 5 293.0 295.4 292.3 332.1 13.78 2 983 282 18.6 18.6 100 0.0 18.6 143 7 293.2 295.7 292.4 332.6 13.85 3 925 803 16.2 14.5 90 1.7 15.1 155 13 295.9 297.9 291.3 328.4 11.29 4 850 1519 11.6 11.1 97 0.5 11.3 190 17 298.3 300.1 290.8 326.9 9.81 5 791 2117 7.6 7.6 100 0.0 7.6 231 19 300.2 301.7 290.2 324.7 8.31 6 776 2275 7.0 6.3 95 0.7 6.6 242 20 301.2 302.6 290.0 324.2 7.74 7 769 2349 7.2 2.2 70 5.0 4.5 247 20 302.2 303.3 288.6 319.8 5.84 8 756 2489 6.0 2.7 79 3.3 4.2 256 21 302.4 303.5 289.0 320.9 6.16 9 754 2511 6.0 1.3 72 4.7 3.5 258 21 302.6 303.7 288.6 319.4 5.58 10 741 2654 7.4 -15.6 18 23.0 -1.0 268 21 305.7 305.9 285.5 310.6 1.53 11 723 2858 9.8 -22.2 9 32.0 -0.9 282 22 310.5 310.6 286.5 313.5 0.89 12 700 3126 8.8 -24.2 8 33.0 -1.8 300 23 312.2 312.4 287.1 314.9 0.77 13 674 3439 9.0 -29.0 5 38.0 -2.3 300 23 315.9 316.0 288.0 317.7 0.52 14 500 5830 -8.9 -31.9 14 23.0 -14.2 300 19 322.2 322.3 290.0 324.1 0.53 15 428 7009 -18.3 -39.3 14 21.0 -21.7 297 31 324.9 324.9 290.6 326.0 0.30 16 400 7510 -20.5 -48.5 6 28.0 -23.9 295 36 328.3 328.4 291.4 328.8 0.12 17 300 9590 -32.1 -66.1 2 34.0 -34.0 280 54 340.1 340.1 294.4 340.2 0.02 18 294 9732 -32.9 -66.9 2 34.0 -34.7 278 56 341.0 341.0 294.6 341.0 0.02 19 250 10850 -41.3 -70.3 3 29.0 -42.3 265 68 344.7 344.7 295.4 344.7 0.01 20 207 12098 -51.9 -72.9 6 21.0 -52.2 261 74 347.1 347.2 296.0 347.2 0.01 21 200 12320 -53.1 -74.1 6 21.0 -53.4 260 75 348.7 348.7 296.4 348.7 0.01 22 192 12583 -54.8 -75.1 6 20.3 -55.1 260 79 350.0 350.0 296.6 350.0 0.01 23 150 14130 -65.3 -81.3 9 16.0 -65.4 255 77 357.6 357.6 298.2 357.6 0.00 24 146 14293 -65.9 -80.9 11 15.0 -66.0 256 75 359.3 359.3 298.5 359.3 0.00 25 134 14811 -66.3 -85.3 5 19.0 -66.4 259 70 367.5 367.5 300.1 367.5 0.00 26 100 16530 -77.3 -88.3 16 11.0 -77.3 270 52 378.4 378.4 302.0 378.4 0.00 TRP WND 192 12583 -54.8 -75.1 6 20.3 -55.1 260 79 350.0 350.0 296.6 350.0 0.01 Sounding variables and indices 1000-500 mb thick: 5696.00 m Freezing level: 586.51 mb = 4641.14 m = 15226.64 ft Wetbulb zero: 743.94 mb = 2621.56 m = 8600.82 ft Precipitable water: 1.18 inches Sfc-500 mean rel hum: 45.50 % Est. max temperature: 25.92 C = 78.66 F Sfc-Lift cond lev (LCL): 991.71 mb = 205.79 m = 675.15 ft T: 19.22 C 700-500 lapse rate: 6.55 C/km ThetaE index: 12.79 C Layer 925.0- 756.0 mb Conv cond level (CCL): 934.97 mb = 711.15 m = 2333.13 ft Mean mixing ratio: 12.81 g/kg Conv temperature: 23.51 C = 74.31 F Cap Strength: 5.99 C Lifted Index: 1.92 C Risk: Showers probable Lifted Index @300 mb: 7.67 C Lifted Index @700 mb: 4.15 C Showalter Index: 3.85 C Risk: None Total Totals Index: 40.50 C Risk: None Vertical Totals Index: 20.50 C Cross Totals Index: 20.00 C K Index: -1.40 Risk: None Sweat Index: 328.66 Risk: Showers and thunderstorms possible Energy Index: -0.43 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 81.20 J/kg Max Up Vert Vel: 12.74 m/s Conv Inhibition (B-): 4.30 J/kg Cap Strength: 5.91 C Lift Cond Lev (LCL): 951.77 mb = 558.51 m = 1832.35 ft Lev Free Conv (LFC): 896.77 mb = 1065.42 m = 3495.44 ft Equ Level (EL): 736.77 mb = 2701.53 m = 8863.18 ft B at Equ Level: 76.46 J/kg Max Parcel Lev (MPL): 686.77 mb = 3283.72 m = 10773.22 ft Wind level data Storm motion: 309 at 14 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 1015 6 155 3 -1.3 2.7 | 134 17 -11.9 11.5 1 1000 134 140 5 -3.2 3.8 | 132 19 -13.9 12.6 2 925 803 155 13 -5.5 11.8 | 142 26 -16.1 20.5 3 850 1519 190 17 3.0 16.7 | 163 27 -7.7 25.5 4 700 3126 300 23 19.9 -11.5 | 286 10 9.3 -2.7 5 500 5830 300 19 16.5 -9.5 | 277 6 5.8 -0.7 6 400 7510 295 36 32.6 -15.2 | 286 23 22.0 -6.5 7 300 9590 280 54 53.2 -9.4 | 271 43 42.5 -0.6 8 250 10850 265 68 67.7 5.9 | 256 59 57.1 14.7 9 200 12320 260 75 73.9 13.0 | 251 67 63.2 21.8 10 192 12583 260 79 77.8 13.7 | 251 71 67.2 22.5 11 150 14130 255 77 74.4 19.9 | 246 70 63.7 28.7 12 100 16530 270 52 52.0 -0.0 | 258 42 41.4 8.8 Wind Parameters Mean winds (0-6000m): 279.5 at 18.4 knts Storm direction: 309.5 at 13.8 knts Shear (0-3000m) pos: 5.3 neg: 1.1 tot: 6.4 10-3/s Storm rel Dir Shear (0-3000m): 133.9 deg Storm rel helicity (0-3000m) pos: 247.6 neg: -1.5 tot: 246.1 m^2/s^2 ave: 82.0 10^-3 m/s^2 rel: 0.80 Storm rel vorticity (0-3000m) horiz: 9.6 stream: 7.7 10^-3/s Energy-Hel index: 0.08 Bulk Rich Number: 1.13 Bulk Shear: 71.65 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 ------------------------------------------------------------------------------- 500 145 6 135 20| 0.0 6.7 6.7| 8.8 -1.5 7.3 14.7 0.18| 6.9 1.3 1000 153 9 139 23| 3.0 3.3 6.3| 39.9 -1.5 38.4 38.4 0.44| 6.8 3.0 1500 165 11 146 24| 4.0 2.2 6.2| 90.6 -1.5 89.2 59.4 0.64| 7.0 4.5 2000 179 13 153 24| 4.8 1.7 6.5|155.8 -1.5 154.3 77.2 0.74| 8.0 5.9 2500 195 14 163 24| 5.2 1.3 6.6|208.3 -1.5 206.8 82.7 0.77| 8.9 6.8 3000 212 16 174 22| 5.3 1.1 6.4|247.6 -1.5 246.1 82.0 0.80| 9.6 7.7 4000 251 17 201 16| 4.0 0.9 4.9|256.0 -2.2 253.8 63.4 0.79| 7.8 6.1 5000 270 18 220 11| 3.2 0.9 4.1|256.0 -3.1 252.9 50.6 0.76| 6.4 4.9 6000 279 18 233 9| 2.7 0.7 3.4|256.7 -3.8 253.0 42.2 0.73| 5.6 4.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251220.00.gif