UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102012.upa.cvt Date: 1200Z 20 OCT 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 20 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 1012 6 27.8 19.8 62 8.0 22.2 125 1 299.9 302.6 294.9 342.4 14.51 1 1000 114 26.8 19.8 66 7.0 21.9 45 7 300.0 302.6 295.0 342.9 14.69 2 932 732 21.4 17.2 77 4.2 18.5 40 18 300.5 303.0 294.3 339.7 13.36 3 925 797 21.0 16.4 75 4.6 17.9 40 19 300.8 303.1 293.9 338.3 12.78 4 850 1526 17.4 11.4 68 6.0 13.6 35 15 304.4 306.2 292.9 334.3 10.01 5 735 2751 8.6 7.4 92 1.2 7.9 57 14 307.7 309.3 292.9 334.5 8.83 6 717 2957 8.2 5.7 84 2.5 6.7 61 13 309.4 310.9 292.8 334.1 8.04 7 700 3156 9.8 -3.2 40 13.0 3.2 65 13 313.3 314.2 290.9 327.0 4.31 8 696 3204 10.4 -8.6 25 19.0 1.7 65 13 314.5 315.1 289.9 323.8 2.87 9 680 3396 10.0 -5.0 34 15.0 2.6 67 13 316.2 316.9 291.3 328.7 3.88 10 566 4895 1.6 -21.4 16 23.0 -6.2 78 12 323.3 323.6 291.0 327.6 1.22 11 510 5724 -4.1 -16.1 39 12.0 -8.7 84 11 326.2 326.6 292.7 333.5 2.13 12 500 5880 -4.7 -18.7 33 14.0 -9.6 85 11 327.3 327.7 292.6 333.4 1.75 13 493 5991 -5.5 -16.5 42 11.0 -9.6 89 11 327.7 328.1 293.0 335.0 2.13 14 472 6332 -6.5 -33.5 10 27.0 -13.0 100 10 330.5 330.6 292.3 332.3 0.48 15 452 6670 -7.5 -29.5 15 22.0 -13.4 112 9 333.4 333.5 293.3 336.1 0.73 16 400 7610 -13.9 -36.9 12 23.0 -18.6 145 7 336.9 337.0 293.9 338.5 0.40 17 389 7821 -15.5 -40.5 10 25.0 -20.0 157 7 337.5 337.6 294.0 338.7 0.29 18 356 8488 -18.1 -51.1 4 33.0 -22.5 196 8 342.7 342.7 295.1 343.1 0.10 19 300 9740 -28.9 -45.9 18 17.0 -30.9 270 9 344.6 344.7 295.6 345.5 0.21 20 294 9884 -29.9 -46.9 18 17.0 -31.8 263 11 345.2 345.3 295.7 346.0 0.19 21 262 10689 -37.3 -43.3 54 6.0 -37.9 225 21 345.9 346.0 296.0 347.2 0.32 22 254 10902 -38.7 -48.7 34 10.0 -39.5 215 24 347.0 347.0 296.1 347.7 0.18 23 250 11010 -39.7 -49.7 34 10.0 -40.4 210 25 347.0 347.1 296.1 347.7 0.16 24 230 11572 -45.1 -59.1 19 14.0 -45.7 212 23 347.2 347.2 296.1 347.4 0.06 25 206 12298 -49.7 -69.7 8 20.0 -50.1 214 20 351.1 351.1 296.9 351.2 0.02 26 200 12490 -51.5 -68.5 11 17.0 -51.9 215 19 351.2 351.2 296.9 351.3 0.02 27 175 13345 -57.3 -74.3 10 17.0 -57.5 217 27 355.3 355.3 297.8 355.4 0.01 28 150 14300 -65.5 -77.5 17 12.0 -65.6 220 36 357.2 357.2 298.1 357.3 0.01 29 131 15108 -72.3 -80.3 29 8.0 -72.3 205 30 359.2 359.2 298.5 359.2 0.00 30 102 16548 -80.3 -87.3 30 7.0 -80.3 177 20 370.5 370.5 300.7 370.5 0.00 31 100 16660 -79.7 -86.7 30 7.0 -79.7 175 19 373.7 373.7 301.2 373.7 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5766.00 m Freezing level: 550.28 mb = 5127.66 m = 16822.84 ft Wetbulb zero: 646.53 mb = 3808.63 m = 12495.34 ft Precipitable water: 1.58 inches Sfc-500 mean rel hum: 52.15 % Est. max temperature: 31.67 C = 89.00 F Sfc-Lift cond lev (LCL): 900.95 mb = 1024.09 m = 3359.82 ft T: 19.88 C 700-500 lapse rate: 5.32 C/km ThetaE index: 10.69 C Layer 717.0- 680.0 mb Conv cond level (CCL): 829.11 mb = 1735.71 m = 5694.51 ft Mean mixing ratio: 13.82 g/kg Conv temperature: 32.85 C = 91.13 F Cap Strength: 3.18 C Lifted Index: 1.73 C Risk: Showers probable Lifted Index @300 mb: 4.65 C Lifted Index @700 mb: 1.87 C Showalter Index: 4.54 C Risk: None Total Totals Index: 38.20 C Risk: None Vertical Totals Index: 22.10 C Cross Totals Index: 16.10 C K Index: 20.50 Risk: 20-40 % chance of thunderstorms Sweat Index: 177.80 Risk: None Energy Index: -0.10 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.81 J/kg Max Up Vert Vel: 6.60 m/s Conv Inhibition (B-): 66.32 J/kg Cap Strength: 3.18 C Lift Cond Lev (LCL): 885.67 mb = 1171.61 m = 3843.83 ft Lev Free Conv (LFC): 770.67 mb = 2351.77 m = 7715.70 ft Equ Level (EL): 710.67 mb = 3030.37 m = 9942.03 ft B at Equ Level: 20.80 J/kg Max Parcel Lev (MPL): 680.67 mb = 3388.27 m = 11116.23 ft Wind level data Storm motion: 88 at 10 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 1012 6 125 1 -0.8 0.6 | 264 9 9.0 0.9 1 1000 114 45 7 -4.9 -4.9 | 313 7 4.9 -4.6 2 925 797 40 19 -12.2 -14.6 | 10 14 -2.4 -14.2 3 850 1526 35 15 -8.6 -12.3 | 354 12 1.2 -11.9 4 700 3156 65 13 -11.8 -5.5 | 21 5 -2.0 -5.1 5 500 5880 85 11 -11.0 -1.0 | 63 1 -1.2 -0.6 6 400 7610 145 7 -4.0 5.7 | 223 8 5.8 6.1 7 300 9740 270 9 9.0 -0.0 | 269 19 18.8 0.4 8 250 11010 210 25 12.5 21.7 | 225 31 22.3 22.0 9 200 12490 215 19 10.9 15.6 | 232 26 20.7 15.9 10 150 14300 220 36 23.1 27.6 | 230 43 32.9 27.9 11 100 16660 175 19 -1.7 18.9 | 203 21 8.1 19.3 Wind Parameters Mean winds (0-6000m): 57.9 at 13.1 knts Storm direction: 87.9 at 9.8 knts Shear (0-3000m) pos: 1.2 neg: 2.6 tot: 3.8 10-3/s Storm rel Dir Shear (0-3000m): 113.9 deg Storm rel helicity (0-3000m) pos: 39.1 neg: -11.8 tot: 27.3 m^2/s^2 ave: 9.1 10^-3 m/s^2 rel: 0.49 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 2.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 7.15 Bulk Shear: 3.05 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 44 9 330 7| 0.0 14.2 14.2| 22.7 0.0 22.7 45.4 0.86| 14.5 12.5 1000 41 13 353 10| 0.0 9.2 9.2| 30.6 -3.5 27.1 27.1 0.67| 10.5 7.1 1500 40 14 356 11| 0.0 5.2 5.2| 30.6 -11.8 18.9 12.6 0.49| 8.0 3.9 2000 39 14 357 11| 0.6 3.9 4.5| 34.1 -11.8 22.4 11.2 0.49| 6.6 3.2 2500 41 14 358 10| 1.0 3.1 4.1| 37.0 -11.8 25.3 10.1 0.49| 5.8 2.8 3000 44 14 360 10| 1.2 2.6 3.8| 39.1 -11.8 27.3 9.1 0.49| 5.2 2.6 4000 49 14 4 9| 1.1 1.9 3.1| 40.3 -11.8 28.6 7.1 0.49| 4.2 2.0 5000 53 13 8 8| 1.1 1.6 2.6| 40.9 -11.8 29.1 5.8 0.48| 3.5 1.7 6000 58 13 11 7| 1.1 1.3 2.4| 41.5 -11.8 29.7 5.0 0.49| 3.1 1.5 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251020.12.gif