UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042912.upa.cvt Date: 1200Z 29 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 29 APR 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 1010 6 27.0 22.6 77 4.4 23.8 30 1 299.3 302.5 296.6 349.9 17.34 1 1000 95 26.4 22.5 79 3.9 23.6 20 1 299.5 302.7 296.7 350.4 17.41 2 925 780 21.2 20.2 94 1.0 20.5 155 7 301.0 304.0 296.4 349.0 16.32 3 916 865 20.6 19.9 96 0.7 20.1 168 6 301.2 304.2 296.4 348.8 16.17 4 868 1331 19.4 16.3 82 3.1 17.3 238 2 304.6 307.2 295.5 345.1 13.55 5 850 1511 17.8 15.6 87 2.2 16.3 265 1 304.8 307.2 295.3 344.3 13.23 6 748 2596 12.2 8.6 79 3.6 10.0 258 6 310.1 311.8 294.0 338.9 9.42 7 700 3150 8.4 6.6 88 1.8 7.3 255 9 311.8 313.5 294.0 338.9 8.77 8 664 3586 6.0 5.6 97 0.4 5.8 254 10 313.8 315.5 294.5 340.7 8.63 9 651 3749 5.6 2.7 82 2.9 3.9 254 10 315.2 316.5 293.7 337.7 7.16 10 600 4414 1.4 1.4 100 0.0 1.4 253 12 317.7 319.1 294.4 340.2 7.08 11 582 4659 0.4 -1.4 88 1.8 -0.6 252 12 319.4 320.5 293.9 338.4 5.94 12 577 4729 0.4 -2.4 81 2.8 -1.0 252 12 320.1 321.2 293.9 338.1 5.57 13 523 5513 -4.3 -4.5 99 0.2 -4.4 251 14 323.6 324.6 294.5 340.8 5.25 14 516 5620 -2.9 -7.5 71 4.6 -5.1 250 14 326.5 327.4 294.5 340.6 4.22 15 500 5870 -4.7 -9.2 71 4.5 -6.7 250 15 327.3 328.1 294.3 340.1 3.81 16 474 6288 -6.3 -12.3 62 6.0 -8.8 251 17 330.4 331.0 294.6 341.1 3.14 17 440 6864 -10.5 -13.2 81 2.7 -11.6 253 20 332.2 332.8 295.0 343.0 3.14 18 424 7147 -12.1 -15.9 73 3.8 -13.5 254 21 333.7 334.2 295.0 342.8 2.61 19 407 7459 -13.5 -34.5 15 21.0 -18.1 255 22 335.8 335.9 293.7 337.7 0.50 20 400 7590 -14.3 -33.3 18 19.0 -18.6 255 23 336.4 336.5 294.0 338.6 0.58 21 376 8057 -18.3 -22.6 69 4.3 -19.6 253 24 337.1 337.5 295.1 343.1 1.66 22 373 8117 -18.5 -28.5 41 10.0 -21.0 253 24 337.6 337.8 294.6 341.3 0.98 23 368 8217 -19.1 -23.9 66 4.8 -20.4 252 25 338.1 338.4 295.2 343.6 1.51 24 359 8402 -19.7 -33.7 28 14.0 -22.6 251 25 339.7 339.9 294.8 342.1 0.62 25 319 9269 -26.7 -30.0 74 3.3 -27.4 247 28 341.7 341.9 295.6 345.4 0.99 26 300 9710 -29.7 -40.7 34 11.0 -31.2 245 29 343.5 343.6 295.5 345.0 0.36 27 296 9805 -30.3 -35.3 62 5.0 -31.1 246 30 344.0 344.1 295.8 346.5 0.64 28 281 10172 -33.1 -41.1 45 8.0 -34.1 249 32 345.1 345.2 295.9 346.6 0.37 29 276 10297 -34.1 -39.1 61 5.0 -34.7 250 32 345.5 345.6 296.0 347.3 0.47 30 272 10399 -34.7 -46.7 29 12.0 -35.8 250 33 346.0 346.1 296.0 346.9 0.21 31 268 10502 -35.5 -44.5 39 9.0 -36.4 251 33 346.3 346.4 296.1 347.4 0.27 32 263 10632 -36.3 -49.3 25 13.0 -37.4 252 34 347.0 347.1 296.1 347.7 0.16 33 259 10738 -37.3 -52.3 20 15.0 -38.4 253 35 347.1 347.1 296.1 347.6 0.12 34 250 10980 -39.5 -52.5 24 13.0 -40.4 255 36 347.3 347.4 296.1 347.8 0.12 35 229 11572 -44.3 -58.3 20 14.0 -44.9 257 38 348.8 348.9 296.4 349.1 0.06 36 212 12082 -49.1 -55.1 50 6.0 -49.4 259 39 349.2 349.2 296.5 349.6 0.10 37 206 12269 -50.9 -58.9 38 8.0 -51.2 259 39 349.2 349.2 296.5 349.5 0.07 38 200 12460 -51.7 -68.7 11 17.0 -52.1 260 40 350.9 350.9 296.8 351.0 0.02 39 167 13609 -60.9 -68.9 34 8.0 -61.0 263 39 354.1 354.1 297.5 354.2 0.02 40 151 14230 -65.7 -75.7 24 10.0 -65.8 265 38 356.2 356.2 298.0 356.3 0.01 41 150 14270 -65.9 -75.9 24 10.0 -66.0 265 38 356.6 356.6 298.0 356.6 0.01 42 142 14599 -66.9 -79.9 14 13.0 -67.0 265 36 360.4 360.4 298.8 360.5 0.00 43 102 16519 -80.7 -85.4 45 4.7 -80.7 265 25 369.7 369.7 300.5 369.7 0.00 44 100 16630 -80.1 -85.1 43 5.0 -80.1 265 25 373.0 373.0 301.1 373.0 0.00 TRP 102 16519 -80.7 -85.4 45 4.7 -80.7 265 25 369.7 369.7 300.5 369.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5775.00 m Freezing level: 572.40 mb = 4795.65 m = 15733.56 ft Wetbulb zero: 587.27 mb = 4586.62 m = 15047.78 ft Precipitable water: 2.30 inches Sfc-500 mean rel hum: 86.78 % Est. max temperature: 32.43 C = 90.37 F Sfc-Lift cond lev (LCL): 947.69 mb = 567.08 m = 1860.49 ft T: 22.82 C 700-500 lapse rate: 4.82 C/km ThetaE index: 11.59 C Layer 925.0- 664.0 mb Conv cond level (CCL): 904.75 mb = 971.80 m = 3188.29 ft Mean mixing ratio: 16.80 g/kg Conv temperature: 29.71 C = 85.47 F Cap Strength: 0.98 C Lifted Index: -1.61 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.13 C Lifted Index @700 mb: -2.11 C Showalter Index: 0.38 C Risk: Thunderstorms probable Total Totals Index: 42.80 C Risk: None Vertical Totals Index: 22.50 C Cross Totals Index: 20.30 C K Index: 36.30 Risk: > 80 % chance of thunderstorms Sweat Index: 204.20 Risk: None Energy Index: -0.88 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 518.63 J/kg Max Up Vert Vel: 32.21 m/s Conv Inhibition (B-): 15.22 J/kg Cap Strength: 0.95 C Lift Cond Lev (LCL): 927.01 mb = 760.94 m = 2496.48 ft Lev Free Conv (LFC): 832.01 mb = 1692.64 m = 5553.20 ft Equ Level (EL): 232.01 mb = 11483.85 m = 37676.21 ft B at Equ Level: 516.44 J/kg Max Parcel Lev (MPL): 122.01 mb = 15479.67 m = 50785.69 ft Wind level data Storm motion: 277 at 6 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 1010 6 30 1 -0.5 -0.9 | 89 7 -6.6 -0.1 1 1000 95 20 1 -0.3 -0.9 | 88 6 -6.5 -0.2 2 925 780 155 7 -3.0 6.3 | 128 12 -9.1 7.1 3 850 1511 265 1 1.0 0.1 | 99 5 -5.1 0.8 4 700 3150 255 9 8.7 2.3 | 220 4 2.6 3.1 5 500 5870 250 15 14.1 5.1 | 234 10 8.0 5.9 6 400 7590 255 23 22.2 6.0 | 247 17 16.1 6.7 7 300 9710 245 29 26.3 12.3 | 237 24 20.2 13.0 8 250 10980 255 36 34.8 9.3 | 251 30 28.7 10.1 9 200 12460 260 40 39.4 6.9 | 257 34 33.3 7.7 10 150 14270 265 38 37.9 3.3 | 263 32 31.7 4.0 11 102 16519 265 25 24.9 2.2 | 261 19 18.8 2.9 12 100 16630 265 25 24.9 2.2 | 261 19 18.8 2.9 Wind Parameters Mean winds (0-6000m): 246.9 at 8.2 knts Storm direction: 276.9 at 6.2 knts Shear (0-3000m) pos: 0.3 neg: 1.2 tot: 1.6 10-3/s Storm rel Dir Shear (0-3000m): 126.0 deg Storm rel helicity (0-3000m) pos: 31.3 neg: -5.3 tot: 25.9 m^2/s^2 ave: 8.6 10^-3 m/s^2 rel: 0.39 Storm rel vorticity (0-3000m) horiz: 4.9 stream: 1.9 10^-3/s Energy-Hel index: 0.09 Bulk Rich Number: 34.83 Bulk Shear: 14.89 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 85 2 93 9| 4.5 0.0 4.5| 6.2 -1.0 5.2 10.3 0.34| 5.6 1.9 1000 155 4 120 9| 3.1 0.0 3.1| 27.9 -1.0 26.9 26.9 0.61| 7.9 4.8 1500 156 4 119 9| 0.6 0.0 0.6| 27.9 -5.3 22.6 15.0 0.29| 7.2 2.1 2000 169 3 121 8| 0.5 0.6 1.1| 28.9 -5.3 23.5 11.8 0.30| 6.0 1.8 2500 197 4 130 7| 0.4 1.0 1.4| 30.1 -5.3 24.7 9.9 0.35| 5.3 1.9 3000 221 4 140 5| 0.3 1.2 1.6| 31.3 -5.3 25.9 8.6 0.39| 4.9 1.9 4000 239 6 160 4| 0.2 1.3 1.5| 32.4 -5.3 27.1 6.8 0.39| 4.0 1.5 5000 245 7 182 4| 0.2 1.2 1.4| 33.3 -5.3 28.0 5.6 0.37| 3.4 1.3 6000 247 8 200 4| 0.2 1.3 1.4| 34.5 -5.3 29.2 4.9 0.36| 3.1 1.1 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250429.12.gif