UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102112.upa.cvt Date: 1200Z 21 OCT 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 21 OCT 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 25.8 15.8 54 10.0 19.2 40 1 297.7 299.7 291.7 330.2 11.19 1 1000 140 25.8 15.8 54 10.0 19.1 40 1 299.0 301.0 292.3 332.1 11.36 2 980 317 22.6 15.6 65 7.0 17.9 34 9 297.5 299.5 291.9 330.6 11.44 3 925 816 18.6 13.6 73 5.0 15.4 15 31 298.3 300.3 291.5 329.3 10.64 4 864 1398 14.0 11.8 87 2.2 12.6 35 28 299.4 301.3 291.5 329.0 10.11 5 850 1537 15.4 11.9 80 3.5 13.1 40 27 302.3 304.2 292.5 332.9 10.35 6 844 1597 15.6 11.7 78 3.9 13.1 39 27 303.1 305.0 292.7 333.7 10.29 7 714 2997 5.6 4.9 95 0.7 5.2 22 18 306.9 308.4 291.7 330.1 7.63 8 708 3067 10.2 -1.8 43 12.0 3.9 21 18 312.8 313.7 291.0 327.7 4.74 9 707 3079 10.2 -1.8 43 12.0 3.9 21 18 312.9 313.8 291.1 327.9 4.74 10 700 3162 10.2 -0.8 46 11.0 4.4 20 17 313.8 314.8 291.7 330.1 5.16 11 630 4034 7.0 -14.0 21 21.0 -1.6 7 16 319.7 320.1 290.7 326.6 2.05 12 582 4680 1.8 -8.2 47 10.0 -2.8 358 15 321.0 321.7 292.4 332.6 3.54 13 526 5489 -2.9 -18.9 28 16.0 -8.5 346 14 324.8 325.1 291.8 330.4 1.63 14 500 5890 -4.9 -26.9 16 22.0 -11.2 340 13 327.1 327.2 291.7 330.1 0.84 15 430 7057 -10.5 -33.5 13 23.0 -15.9 323 12 334.4 334.5 293.4 336.3 0.53 16 425 7146 -9.5 -43.5 4 34.0 -15.9 322 12 336.8 336.8 293.7 337.5 0.19 17 411 7403 -11.3 -33.3 14 22.0 -16.5 318 11 337.7 337.8 294.3 339.8 0.56 18 400 7610 -11.9 -42.9 6 31.0 -17.7 315 11 339.5 339.6 294.4 340.4 0.22 19 339 8850 -22.1 -45.1 11 23.0 -25.4 275 16 342.1 342.1 295.0 342.9 0.20 20 323 9205 -23.3 -50.3 7 27.0 -26.6 263 17 345.2 345.2 295.7 345.7 0.12 21 300 9740 -27.9 -48.9 12 21.0 -30.2 245 19 346.1 346.1 295.9 346.7 0.15 22 250 11030 -37.7 -60.7 7 23.0 -38.9 235 25 350.0 350.0 296.7 350.2 0.04 23 223 11808 -44.5 -61.5 13 17.0 -45.2 232 24 351.2 351.2 297.0 351.4 0.04 24 216 12021 -45.9 -60.9 17 15.0 -46.5 232 24 352.2 352.3 297.1 352.5 0.05 25 204 12400 -48.3 -73.3 4 25.0 -48.8 230 23 354.3 354.3 297.5 354.3 0.01 26 200 12530 -49.3 -73.3 4 24.0 -49.8 230 23 354.7 354.7 297.7 354.7 0.01 27 150 14340 -65.1 -80.1 11 15.0 -65.2 210 19 357.9 357.9 298.3 358.0 0.00 28 134 15018 -71.5 -79.5 29 8.0 -71.5 177 15 358.3 358.3 298.4 358.3 0.01 29 106 16372 -81.3 -89.3 25 8.0 -81.3 107 5 364.5 364.5 299.5 364.5 0.00 30 100 16700 -80.7 -88.7 25 8.0 -80.7 90 3 371.8 371.8 300.9 371.8 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5750.00 m Freezing level: 560.55 mb = 4989.77 m = 16370.43 ft Wetbulb zero: 648.98 mb = 3788.16 m = 12428.21 ft Precipitable water: 1.48 inches Sfc-500 mean rel hum: 56.51 % Est. max temperature: 27.52 C = 81.54 F Sfc-Lift cond lev (LCL): 876.82 mb = 1272.67 m = 4175.38 ft T: 14.99 C 700-500 lapse rate: 5.54 C/km ThetaE index: 5.98 C Layer 714.0- 707.0 mb Conv cond level (CCL): 793.22 mb = 2116.65 m = 6944.31 ft Mean mixing ratio: 11.10 g/kg Conv temperature: 32.72 C = 90.89 F Cap Strength: 7.16 C Lifted Index: 6.15 C Risk: None Lifted Index @300 mb: 12.16 C Lifted Index @700 mb: 5.73 C Showalter Index: 4.98 C Risk: None Total Totals Index: 37.10 C Risk: None Vertical Totals Index: 20.30 C Cross Totals Index: 16.80 C K Index: 21.20 Risk: 20-40 % chance of thunderstorms Sweat Index: 209.80 Risk: None Energy Index: -0.42 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.94 J/kg Max Up Vert Vel: 2.42 m/s Conv Inhibition (B-): 7041.42 J/kg Cap Strength: 7.12 C Lift Cond Lev (LCL): 870.48 mb = 1334.55 m = 4378.39 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 48 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 40 1 -0.6 -0.8 | 229 13 9.6 8.4 1 1000 140 40 1 -0.6 -0.8 | 229 13 9.6 8.4 2 925 816 15 31 -8.0 -29.9 | 354 21 2.2 -20.8 3 850 1537 40 27 -17.4 -20.7 | 32 14 -7.2 -11.5 4 700 3162 20 17 -5.8 -16.0 | 327 8 4.4 -6.8 5 500 5890 340 13 4.4 -12.2 | 282 15 14.6 -3.0 6 400 7610 315 11 7.8 -7.8 | 266 18 18.0 1.4 7 300 9740 245 19 17.2 8.0 | 238 32 27.4 17.2 8 250 11030 235 25 20.5 14.3 | 233 39 30.7 23.5 9 200 12530 230 23 17.6 14.8 | 229 37 27.8 24.0 10 150 14340 210 19 9.5 16.5 | 218 32 19.7 25.6 11 100 16700 90 3 -3.0 0.0 | 218 12 7.2 9.2 Wind Parameters Mean winds (0-6000m): 18.0 at 18.3 knts Storm direction: 48.0 at 13.7 knts Shear (0-3000m) pos: 1.5 neg: 3.9 tot: 5.4 10-3/s Storm rel Dir Shear (0-3000m): 106.3 deg Storm rel helicity (0-3000m) pos: 71.0 neg: -26.1 tot: 44.9 m^2/s^2 ave: 15.0 10^-3 m/s^2 rel: 0.27 Storm rel vorticity (0-3000m) horiz: 9.4 stream: 2.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.17 Bulk Shear: 17.46 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 28 7 247 8| 0.0 16.7 16.7| 16.3 0.0 16.3 32.6 0.67| 17.3 11.5 1000 17 17 322 9| 0.0 14.9 14.9| 38.5 0.0 38.5 38.5 0.49| 17.6 8.7 1500 23 21 348 10| 3.1 9.9 13.0| 70.9 0.0 70.9 47.3 0.56| 14.9 8.4 2000 27 22 358 10| 2.3 6.9 9.2| 71.0 -8.6 62.4 31.2 0.46| 12.2 5.6 2500 28 22 1 10| 1.9 5.1 6.9| 71.0 -17.9 53.1 21.2 0.36| 10.5 3.8 3000 28 22 360 10| 1.5 3.9 5.4| 71.0 -26.1 44.9 15.0 0.27| 9.4 2.5 4000 26 20 352 9| 1.2 2.8 4.0| 71.0 -35.8 35.2 8.8 0.18| 7.7 1.4 5000 22 19 341 9| 0.9 2.2 3.2| 71.0 -45.6 25.4 5.1 0.12| 6.6 0.8 6000 18 18 331 9| 0.8 1.8 2.6| 71.0 -56.8 14.2 2.4 0.07| 5.8 0.4 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251021.12.gif