UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025052912.upa.cvt Date: 1200Z 29 MAY 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 29 MAY 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 1006 6 26.2 22.2 79 4.0 23.3 15 3 298.8 301.9 296.3 348.3 16.98 1 1000 58 25.8 22.0 80 3.8 23.0 20 5 299.0 302.0 296.2 348.1 16.87 2 959 426 22.2 21.0 93 1.2 21.3 50 9 298.9 301.9 296.0 347.1 16.54 3 935 648 23.2 21.2 89 2.0 21.8 67 12 302.1 305.3 297.3 352.9 17.19 4 925 742 22.8 21.5 92 1.3 21.9 75 13 302.6 305.9 297.7 355.1 17.72 5 850 1478 19.0 19.0 100 0.0 19.0 345 1 306.0 309.1 297.8 355.5 16.49 6 779 2226 15.6 15.6 100 0.0 15.6 325 5 310.1 312.9 297.5 354.2 14.46 7 700 3132 11.8 10.2 90 1.6 10.7 300 11 315.6 317.7 296.8 350.6 11.24 8 599 4425 6.8 0.8 66 6.0 3.4 293 10 324.1 325.5 295.8 346.3 6.79 9 592 4521 7.2 0.2 61 7.0 3.2 293 10 325.7 327.0 296.0 347.3 6.58 10 561 4962 4.4 -2.6 60 7.0 0.6 290 10 327.4 328.6 295.8 346.2 5.64 11 500 5890 -1.3 -5.6 73 4.3 -3.5 285 9 331.5 332.5 296.3 348.5 5.05 12 435 6990 -8.3 -10.4 85 2.1 -9.2 301 14 336.0 336.9 296.6 349.9 3.99 13 418 7300 -10.3 -13.2 79 2.9 -11.5 305 15 337.3 338.0 296.4 348.9 3.31 14 414 7374 -10.1 -16.1 61 6.0 -12.5 306 16 338.5 339.1 296.1 347.9 2.63 15 400 7640 -11.5 -16.0 69 4.5 -13.3 310 17 340.0 340.6 296.6 349.8 2.75 16 377 8092 -14.3 -16.4 84 2.1 -15.1 311 17 342.1 342.7 297.1 352.3 2.82 17 344 8782 -17.9 -23.9 59 6.0 -19.7 313 17 346.3 346.7 297.1 352.4 1.61 18 300 9790 -25.7 -29.0 74 3.3 -26.5 315 17 349.2 349.4 297.4 353.6 1.16 19 286 10133 -28.7 -31.1 80 2.4 -29.2 316 16 349.7 349.9 297.4 353.5 1.00 20 283 10208 -29.1 -33.5 66 4.4 -29.9 317 16 350.2 350.3 297.3 353.3 0.80 21 282 10234 -29.5 -31.5 83 2.0 -29.9 317 16 349.9 350.1 297.4 353.7 0.97 22 273 10464 -31.1 -34.4 73 3.3 -31.7 318 16 350.9 351.0 297.4 353.9 0.76 23 272 10490 -31.1 -41.1 37 10.0 -32.5 318 16 351.3 351.3 297.3 352.8 0.39 24 268 10594 -31.7 -36.6 62 4.9 -32.5 318 16 351.9 352.0 297.5 354.3 0.62 25 265 10673 -32.5 -38.5 55 6.0 -33.4 318 16 351.8 351.9 297.5 353.9 0.52 26 259 10834 -33.9 -41.9 44 8.0 -34.9 319 15 352.1 352.2 297.4 353.6 0.37 27 250 11080 -36.1 -41.1 60 5.0 -36.7 320 15 352.4 352.5 297.5 354.1 0.42 28 248 11136 -36.5 -41.0 63 4.5 -37.1 321 15 352.6 352.7 297.5 354.3 0.43 29 245 11220 -37.1 -57.1 11 20.0 -38.4 324 16 352.9 353.0 297.3 353.2 0.07 30 228 11714 -41.5 -46.3 60 4.8 -41.9 337 20 353.6 353.6 297.6 354.7 0.26 31 200 12590 -49.1 -57.1 39 8.0 -49.4 360 27 355.0 355.0 297.8 355.4 0.08 32 170 13629 -58.9 -63.2 57 4.3 -59.0 3 34 355.6 355.7 297.8 355.8 0.05 33 150 14400 -65.7 -72.7 37 7.0 -65.8 5 40 356.9 356.9 298.1 357.0 0.01 34 149 14441 -65.9 -73.9 32 8.0 -66.0 5 40 357.2 357.2 298.2 357.3 0.01 35 144 14647 -67.3 -71.5 55 4.2 -67.4 8 37 358.3 358.3 298.4 358.4 0.02 36 137 14948 -67.9 -80.9 14 13.0 -67.9 12 34 362.4 362.4 299.2 362.4 0.00 37 100 16790 -79.1 -84.1 44 5.0 -79.1 35 13 374.9 374.9 301.4 374.9 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5832.00 m Freezing level: 513.91 mb = 5678.29 m = 18629.33 ft Wetbulb zero: 551.99 mb = 5092.27 m = 16706.71 ft Precipitable water: 2.71 inches Sfc-500 mean rel hum: 83.15 % Est. max temperature: 33.14 C = 91.65 F Sfc-Lift cond lev (LCL): 949.35 mb = 514.55 m = 1688.13 ft T: 22.60 C 700-500 lapse rate: 4.75 C/km ThetaE index: 9.27 C Layer 779.0- 592.0 mb Conv cond level (CCL): 864.94 mb = 1326.33 m = 4351.41 ft Mean mixing ratio: 17.01 g/kg Conv temperature: 32.72 C = 90.90 F Cap Strength: 2.99 C Lifted Index: 1.49 C Risk: Showers probable Lifted Index @300 mb: 2.46 C Lifted Index @700 mb: 1.12 C Showalter Index: -0.21 C Risk: Thunderstorms probable Total Totals Index: 40.60 C Risk: None Vertical Totals Index: 20.30 C Cross Totals Index: 20.30 C K Index: 37.70 Risk: > 80 % chance of thunderstorms Sweat Index: 239.00 Risk: None Energy Index: -1.44 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.38 J/kg Max Up Vert Vel: 6.54 m/s Conv Inhibition (B-): 1901.32 J/kg Cap Strength: 2.88 C Lift Cond Lev (LCL): 927.79 mb = 715.64 m = 2347.89 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 339 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 1006 6 15 3 -0.8 -2.9 | 135 4 -3.0 3.0 1 1000 58 20 5 -1.7 -4.7 | 107 4 -3.9 1.2 2 925 742 75 13 -12.6 -3.4 | 100 15 -14.8 2.5 3 850 1478 345 1 0.3 -1.0 | 158 5 -2.0 4.9 4 700 3132 300 11 9.5 -5.5 | 267 7 7.3 0.4 5 500 5890 285 9 8.7 -2.3 | 241 7 6.5 3.6 6 400 7640 310 17 13.0 -10.9 | 295 12 10.8 -5.0 7 300 9790 315 17 12.0 -12.0 | 302 12 9.8 -6.1 8 250 11080 320 15 9.6 -11.5 | 307 9 7.4 -5.6 9 200 12590 360 27 -0.0 -27.0 | 6 21 -2.2 -21.1 10 150 14400 5 40 -3.5 -39.8 | 10 34 -5.7 -34.0 11 100 16790 35 13 -7.5 -10.6 | 64 11 -9.7 -4.8 Wind Parameters Mean winds (0-6000m): 309.3 at 8.4 knts Storm direction: 339.3 at 6.3 knts Shear (0-3000m) pos: 1.4 neg: 2.9 tot: 4.3 10-3/s Storm rel Dir Shear (0-3000m): 133.0 deg Storm rel helicity (0-3000m) pos: 14.5 neg: -11.9 tot: 2.6 m^2/s^2 ave: 0.9 10^-3 m/s^2 rel: 0.13 Storm rel vorticity (0-3000m) horiz: 6.7 stream: 0.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.24 Bulk Shear: 17.20 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 43 7 95 7| 8.5 0.0 8.5| 1.0 -4.5 -3.5 -7.1 -0.37| 9.4 -3.5 1000 60 9 97 10| 4.2 1.4 5.6| 6.3 -11.9 -5.6 -5.6 -0.21| 10.2 -2.1 1500 64 8 105 9| 2.8 3.4 6.2| 11.7 -11.9 -0.2 -0.1 0.03| 9.9 0.3 2000 57 6 107 8| 2.1 2.8 4.9| 12.4 -11.9 0.5 0.3 0.06| 8.2 0.5 2500 42 6 100 7| 1.7 2.8 4.5| 13.9 -11.9 1.9 0.8 0.13| 7.3 0.9 3000 15 7 82 4| 1.4 2.9 4.3| 14.5 -11.9 2.6 0.9 0.13| 6.7 0.9 4000 335 8 315 1| 1.1 2.3 3.4| 14.5 -14.2 0.3 0.1 0.10| 5.3 0.5 5000 318 8 273 3| 0.8 1.8 2.7| 14.5 -16.5 -2.0 -0.4 0.07| 4.3 0.3 6000 309 8 262 4| 0.7 1.5 2.2| 15.4 -18.3 -2.9 -0.5 0.06| 3.8 0.2 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250529.12.gif