UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122300.upa.cvt Date: 0000Z 23 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 23 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 1014 6 22.0 19.9 88 2.1 20.6 150 3 294.0 296.6 293.2 335.6 14.57 1 1000 126 21.0 19.7 92 1.3 20.1 140 11 294.1 296.8 293.3 335.8 14.60 2 925 798 17.0 15.8 93 1.2 16.2 180 23 296.7 298.9 292.3 332.2 12.29 3 866 1358 13.2 13.0 99 0.2 13.1 207 18 298.4 300.4 291.7 330.2 10.93 4 865 1368 13.2 13.0 99 0.2 13.1 208 18 298.5 300.5 291.8 330.4 10.95 5 852 1496 14.2 11.9 86 2.3 12.7 214 17 300.8 302.7 292.0 331.2 10.33 6 850 1516 14.0 11.8 87 2.2 12.6 215 17 300.8 302.7 292.0 331.1 10.28 7 797 2057 10.8 8.9 88 1.9 9.6 232 18 303.0 304.7 291.7 329.8 9.02 8 751 2551 7.0 3.3 77 3.7 5.0 247 20 304.1 305.3 289.9 323.6 6.47 9 711 2998 2.6 2.4 99 0.2 2.5 261 21 304.0 305.2 289.8 323.3 6.41 10 705 3067 2.8 -0.5 79 3.3 1.1 263 21 305.0 305.9 289.0 320.9 5.24 11 700 3125 4.0 -4.0 56 8.0 0.2 265 21 306.9 307.7 288.6 319.5 4.06 12 698 3148 5.4 -11.6 28 17.0 -1.4 265 21 308.7 309.1 287.4 315.9 2.25 13 696 3172 9.2 -37.8 2 47.0 -2.5 266 21 313.2 313.2 286.7 314.0 0.21 14 693 3208 10.6 -37.4 2 48.0 -1.8 266 21 315.1 315.2 287.4 315.9 0.22 15 657 3650 9.2 -28.8 5 38.0 -2.4 272 23 318.4 318.5 288.8 320.3 0.54 16 618 4153 5.0 -34.0 4 39.0 -5.3 278 25 319.2 319.3 288.9 320.5 0.35 17 611 4246 5.8 -33.2 4 39.0 -4.8 279 26 321.2 321.2 289.5 322.6 0.38 18 582 4642 4.6 -33.4 4 38.0 -5.8 284 28 324.3 324.3 290.5 325.7 0.39 19 500 5860 -3.7 -35.7 6 32.0 -11.3 300 33 328.5 328.6 291.7 329.9 0.36 20 468 6378 -7.3 -32.3 12 25.0 -13.5 300 35 330.3 330.4 292.3 332.3 0.54 21 400 7580 -15.7 -51.7 3 36.0 -20.5 300 40 334.6 334.6 293.0 334.9 0.08 22 398 7618 -15.9 -51.9 3 36.0 -20.6 300 40 334.8 334.8 293.1 335.1 0.08 23 300 9670 -32.7 -46.7 23 14.0 -34.1 300 54 339.3 339.3 294.3 340.1 0.19 24 297 9741 -33.5 -46.5 26 13.0 -34.7 300 54 339.1 339.2 294.3 339.9 0.20 25 260 10663 -40.9 -57.9 14 17.0 -41.8 300 51 341.4 341.4 294.7 341.7 0.06 26 250 10930 -42.7 -60.7 12 18.0 -43.5 300 50 342.6 342.6 295.0 342.8 0.04 27 205 12241 -52.3 -67.6 14 15.3 -52.6 305 62 347.5 347.5 296.1 347.6 0.02 28 200 12400 -53.5 -68.5 14 15.0 -53.8 300 62 348.0 348.0 296.2 348.1 0.02 29 194 12597 -54.9 -70.9 12 16.0 -55.2 296 61 348.9 348.9 296.4 348.9 0.01 30 150 14200 -68.1 -76.1 31 8.0 -68.1 265 56 352.8 352.8 297.3 352.8 0.01 31 146 14361 -69.5 -76.5 35 7.0 -69.5 266 53 353.1 353.1 297.3 353.1 0.01 32 144 14443 -70.1 -77.1 35 7.0 -70.1 267 52 353.4 353.4 297.4 353.5 0.01 33 123 15371 -73.5 -84.5 17 11.0 -73.5 272 35 363.5 363.5 299.4 363.6 0.00 34 113 15867 -72.5 -90.5 5 18.0 -72.5 275 26 374.3 374.3 301.3 374.3 0.00 35 100 16580 -74.9 -89.9 8 15.0 -74.9 280 13 383.0 383.0 302.7 383.0 0.00 TRP WND 205 12241 -52.3 -67.6 14 15.3 -52.6 305 62 347.5 347.5 296.1 347.6 0.02 Sounding variables and indices 1000-500 mb thick: 5734.00 m Freezing level: 536.55 mb = 5317.24 m = 17444.79 ft Wetbulb zero: 699.76 mb = 3127.77 m = 10261.60 ft Precipitable water: 1.34 inches Sfc-500 mean rel hum: 49.14 % Est. max temperature: 26.70 C = 80.05 F Sfc-Lift cond lev (LCL): 983.57 mb = 268.81 m = 881.90 ft T: 20.15 C 700-500 lapse rate: 2.82 C/km ThetaE index: 17.27 C Layer 850.0- 693.0 mb Conv cond level (CCL): 930.27 mb = 749.00 m = 2457.31 ft Mean mixing ratio: 13.45 g/kg Conv temperature: 24.54 C = 76.17 F Cap Strength: 6.81 C Lifted Index: 5.66 C Risk: None Lifted Index @300 mb: 5.01 C Lifted Index @700 mb: -1.76 C Showalter Index: 7.00 C Risk: None Total Totals Index: 33.20 C Risk: None Vertical Totals Index: 17.70 C Cross Totals Index: 15.50 C K Index: 21.50 Risk: 20-40 % chance of thunderstorms Sweat Index: 358.12 Risk: Showers and thunderstorms possible Energy Index: -0.06 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 85.84 J/kg Max Up Vert Vel: 13.10 m/s Conv Inhibition (B-): 2.99 J/kg Cap Strength: 6.74 C Lift Cond Lev (LCL): 945.66 mb = 607.60 m = 1993.40 ft Lev Free Conv (LFC): 910.66 mb = 930.82 m = 3053.82 ft Equ Level (EL): 850.66 mb = 1509.42 m = 4952.11 ft B at Equ Level: 19.28 J/kg Max Parcel Lev (MPL): 660.66 mb = 3604.14 m = 11824.47 ft Wind level data Storm motion: 292 at 17 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 1014 6 150 3 -1.5 2.6 | 118 20 -17.3 9.0 1 1000 126 140 11 -7.1 8.4 | 123 27 -22.9 14.9 2 925 798 180 23 0.0 23.0 | 152 33 -15.8 29.4 3 850 1516 215 17 9.8 13.9 | 163 21 -6.0 20.3 4 700 3125 265 21 20.9 1.8 | 212 10 5.1 8.3 5 500 5860 300 33 28.6 -16.5 | 308 16 12.8 -10.1 6 400 7580 300 40 34.6 -20.0 | 306 23 18.9 -13.6 7 300 9670 300 54 46.8 -27.0 | 304 37 31.0 -20.6 8 250 10930 300 50 43.3 -25.0 | 304 33 27.5 -18.6 9 205 12241 305 62 50.8 -35.6 | 310 46 35.0 -29.1 10 200 12400 300 62 53.7 -31.0 | 303 45 37.9 -24.6 11 150 14200 265 56 55.8 4.9 | 254 42 40.0 11.3 12 100 16580 280 13 12.8 -2.3 | 144 5 -3.0 4.2 Wind Parameters Mean winds (0-6000m): 262.1 at 22.7 knts Storm direction: 292.1 at 17.0 knts Shear (0-3000m) pos: 3.8 neg: 0.0 tot: 3.8 10-3/s Storm rel Dir Shear (0-3000m): 88.5 deg Storm rel helicity (0-3000m) pos: 233.6 neg: 0.0 tot: 233.6 m^2/s^2 ave: 77.9 10^-3 m/s^2 rel: 0.65 Storm rel vorticity (0-3000m) horiz: 9.2 stream: 6.0 10^-3/s Energy-Hel index: 0.11 Bulk Rich Number: 0.75 Bulk Shear: 114.92 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 ------------------------------------------------------------------------------- 500 152 13 129 28| 15.3 0.0 15.3| 73.1 0.0 73.1 146.1 0.59| 17.2 10.2 1000 171 17 141 30| 9.8 0.0 9.8|161.2 0.0 161.2 161.2 0.70| 14.9 10.4 1500 181 18 147 29| 5.5 0.0 5.5|184.1 0.0 184.1 122.8 0.62| 13.1 8.0 2000 192 18 153 27| 4.6 0.0 4.6|203.9 0.0 203.9 101.9 0.63| 11.1 7.0 2500 202 18 158 25| 4.1 0.0 4.1|220.4 0.0 220.4 88.1 0.64| 9.9 6.4 3000 212 18 165 23| 3.8 0.0 3.8|233.6 0.0 233.6 77.9 0.65| 9.2 6.0 4000 230 19 177 19| 3.4 0.0 3.4|251.3 0.0 251.3 62.8 0.69| 7.9 5.4 5000 247 21 193 15| 3.2 0.0 3.2|271.1 0.0 271.1 54.2 0.71| 7.1 5.0 6000 262 23 215 12| 3.1 0.0 3.1|292.5 -0.3 292.3 48.7 0.72| 6.5 4.7 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251223.00.gif