UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120812.upa.cvt Date: 1200Z 8 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 8 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 1018 6 22.6 14.6 61 8.0 17.4 280 1 294.2 296.1 289.9 323.8 10.31 1 1016 23 23.4 14.4 57 9.0 17.6 284 1 295.2 297.0 290.1 324.5 10.20 2 1000 163 22.2 14.2 60 8.0 17.1 320 3 295.4 297.2 290.2 324.8 10.23 3 925 835 16.6 10.6 68 6.0 13.0 360 3 296.3 297.9 289.2 321.5 8.70 4 850 1549 10.8 9.0 89 1.8 9.7 95 11 297.5 299.0 289.5 322.3 8.50 5 837 1677 9.8 8.6 92 1.2 9.1 88 10 297.7 299.2 289.5 322.3 8.41 6 818 1868 9.4 3.4 66 6.0 6.2 77 9 299.3 300.3 287.8 317.0 5.98 7 764 2431 5.4 3.1 85 2.3 4.2 46 7 300.8 302.0 288.6 319.5 6.27 8 752 2560 4.8 0.3 73 4.5 2.5 38 6 301.6 302.5 287.8 317.2 5.20 9 748 2604 6.6 -10.4 28 17.0 -0.3 36 6 304.0 304.4 285.8 311.2 2.31 10 743 2659 8.8 -18.2 13 27.0 -0.7 33 5 307.0 307.2 285.7 311.0 1.23 11 718 2944 11.8 -31.2 3 43.0 -0.7 17 4 313.3 313.3 286.9 314.7 0.39 12 700 3156 11.4 -30.6 4 42.0 -1.0 5 3 315.1 315.2 287.6 316.6 0.43 13 693 3240 11.8 -35.2 2 47.0 -1.1 2 3 316.5 316.5 287.9 317.5 0.28 14 500 5890 -3.5 -44.5 2 41.0 -11.6 280 11 328.8 328.8 291.5 329.3 0.15 15 477 6262 -4.9 -34.9 7 30.0 -12.2 281 11 331.5 331.6 292.6 333.1 0.41 16 400 7620 -15.3 -33.3 20 18.0 -19.2 285 11 335.1 335.2 293.6 337.3 0.58 17 383 7946 -17.5 -34.5 21 17.0 -21.0 282 13 336.4 336.5 293.9 338.4 0.54 18 312 9441 -29.7 -44.7 22 15.0 -31.4 268 21 339.7 339.7 294.4 340.6 0.23 19 300 9720 -30.7 -53.7 9 23.0 -32.6 265 23 342.1 342.1 294.9 342.5 0.09 20 293 9888 -32.1 -51.1 13 19.0 -33.8 265 24 342.4 342.5 295.0 342.9 0.12 21 264 10616 -39.1 -51.1 27 12.0 -39.9 265 30 342.6 342.6 295.1 343.1 0.13 22 263 10642 -39.1 -51.1 27 12.0 -39.9 265 30 342.9 343.0 295.1 343.5 0.13 23 250 10990 -40.7 -59.7 11 19.0 -41.6 265 33 345.6 345.6 295.7 345.8 0.05 24 246 11100 -41.3 -62.3 9 21.0 -42.2 264 33 346.3 346.3 295.8 346.4 0.04 25 200 12470 -52.5 -70.5 10 18.0 -52.8 250 36 349.6 349.6 296.5 349.7 0.01 26 168 13575 -60.1 -79.1 7 19.0 -60.3 244 42 354.8 354.8 297.7 354.9 0.00 27 150 14270 -66.7 -79.7 14 13.0 -66.8 240 46 355.2 355.2 297.7 355.2 0.00 28 138 14770 -71.5 -80.5 25 9.0 -71.5 241 40 355.3 355.3 297.8 355.3 0.00 29 102 16509 -82.7 -92.7 16 10.0 -82.7 245 17 365.9 365.9 299.8 365.9 0.00 30 100 16620 -82.5 -92.5 16 10.0 -82.5 245 15 368.3 368.3 300.2 368.3 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5727.00 m Freezing level: 544.15 mb = 5283.74 m = 17334.90 ft Wetbulb zero: 748.46 mb = 2598.57 m = 8525.39 ft Precipitable water: 0.94 inches Sfc-500 mean rel hum: 33.54 % Est. max temperature: 25.55 C = 77.99 F Sfc-Lift cond lev (LCL): 904.84 mb = 1021.04 m = 3349.81 ft T: 15.09 C 700-500 lapse rate: 5.45 C/km ThetaE index: 8.56 C Layer 752.0- 718.0 mb Conv cond level (CCL): 848.07 mb = 1567.92 m = 5144.04 ft Mean mixing ratio: 9.54 g/kg Conv temperature: 25.87 C = 78.57 F Cap Strength: 10.49 C Lifted Index: 11.10 C Risk: None Lifted Index @300 mb: 13.96 C Lifted Index @700 mb: 9.62 C Showalter Index: 11.66 C Risk: None Total Totals Index: 26.80 C Risk: None Vertical Totals Index: 14.30 C Cross Totals Index: 12.50 C K Index: -18.70 Risk: None Sweat Index: 141.00 Risk: None Energy Index: 1.68 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.34 J/kg Max Up Vert Vel: 2.58 m/s Conv Inhibition (B-): 37.76 J/kg Cap Strength: 11.00 C Lift Cond Lev (LCL): 869.95 mb = 1353.10 m = 4439.24 ft Lev Free Conv (LFC): 764.95 mb = 2420.37 m = 7940.76 ft Equ Level (EL): 754.95 mb = 2527.97 m = 8293.76 ft B at Equ Level: 2.04 J/kg Max Parcel Lev (MPL): 744.95 mb = 2637.31 m = 8652.49 ft Wind level data Storm motion: 11 at 5 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 1018 6 280 1 1.0 -0.2 | 202 5 1.9 4.6 1 1000 163 320 3 1.9 -2.3 | 229 4 2.8 2.5 2 925 835 360 3 -0.0 -3.0 | 207 2 0.9 1.8 3 850 1549 95 11 -11.0 1.0 | 120 12 -10.0 5.8 4 700 3156 5 3 -0.3 -3.0 | 200 2 0.7 1.8 5 500 5890 280 11 10.8 -1.9 | 256 12 11.8 2.9 6 400 7620 285 11 10.6 -2.8 | 260 12 11.5 2.0 7 300 9720 265 23 22.9 2.0 | 254 25 23.8 6.8 8 250 10990 265 33 32.9 2.9 | 257 35 33.8 7.7 9 200 12470 250 36 33.8 12.3 | 244 39 34.7 17.1 10 150 14270 240 46 39.8 23.0 | 236 49 40.8 27.8 11 100 16620 245 15 13.6 6.3 | 232 18 14.5 11.1 Wind Parameters Mean winds (0-6000m): 340.8 at 6.5 knts Storm direction: 10.8 at 4.9 knts Shear (0-3000m) pos: 2.0 neg: 1.8 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): -19.8 deg Storm rel helicity (0-3000m) pos: 11.0 neg: -8.7 tot: 2.3 m^2/s^2 ave: 0.8 10^-3 m/s^2 rel: 0.03 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 0.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.59 Bulk Shear: 2.11 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 ------------------------------------------------------------------------------- 500 326 3 223 4| 2.7 0.0 2.7| 2.4 -0.2 2.2 4.4 0.53| 3.5 1.9 1000 345 3 222 3| 2.7 0.0 2.7| 2.4 -1.0 1.4 1.4 -0.12| 3.6 -0.4 1500 42 5 123 3| 3.9 0.0 3.9| 9.4 -1.2 8.2 5.4 0.12| 6.1 0.7 2000 67 6 119 5| 3.0 1.0 3.9| 10.3 -6.9 3.4 1.7 0.00| 5.8 0.0 2500 67 6 116 5| 2.4 1.6 4.0| 10.3 -8.7 1.6 0.7 -0.04| 5.5 -0.2 3000 68 6 119 5| 2.0 1.8 3.7| 11.0 -8.7 2.3 0.8 0.03| 5.2 0.1 4000 57 6 115 4| 1.5 1.7 3.2| 12.2 -8.7 3.6 0.9 0.11| 4.4 0.5 5000 29 6 81 2| 1.2 1.8 3.0| 12.4 -9.9 2.5 0.5 0.08| 4.0 0.3 6000 341 7 294 3| 1.0 1.8 2.8| 12.6 -17.4 -4.9 -0.8 0.01| 3.8 0.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251208.12.gif