UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122512.upa.cvt Date: 1200Z 25 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 25 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 1020 6 19.2 9.2 52 10.0 13.4 350 3 290.7 292.0 285.7 311.1 7.17 1 1000 179 17.6 8.6 56 9.0 12.4 350 7 290.8 292.0 285.6 310.8 7.02 2 925 839 11.8 5.8 67 6.0 8.5 20 15 291.4 292.5 285.1 309.3 6.26 3 850 1539 5.6 4.4 92 1.2 4.9 35 15 292.0 293.1 285.2 309.8 6.17 4 849 1549 5.6 4.3 91 1.3 4.9 34 15 292.1 293.2 285.2 309.8 6.14 5 843 1607 8.6 1.6 61 7.0 5.1 30 15 295.9 296.8 285.6 310.8 5.10 6 785 2197 8.0 5.9 87 2.1 6.8 348 16 301.3 302.7 289.8 323.4 7.44 7 766 2399 6.6 6.0 96 0.6 6.2 333 16 301.9 303.3 290.2 324.8 7.68 8 729 2805 3.6 2.5 93 1.1 3.0 304 17 302.9 304.1 289.3 321.9 6.30 9 710 3019 3.4 -1.2 72 4.6 1.1 288 17 305.0 305.9 288.8 320.1 4.94 10 700 3135 4.6 -9.4 35 14.0 -1.3 280 17 307.6 308.1 287.4 316.0 2.68 11 696 3182 5.0 -10.0 33 15.0 -1.3 280 17 308.5 309.0 287.6 316.7 2.57 12 682 3349 9.6 280 19 315.5 13 680 3373 9.6 280 19 315.7 14 588 4560 1.0 -36.0 4 37.0 -7.8 277 30 319.1 319.2 288.8 320.2 0.30 15 509 5709 -3.7 -30.7 10 27.0 -10.8 275 41 326.9 327.0 291.4 329.0 0.58 16 500 5850 -4.7 -23.7 21 19.0 -10.6 275 42 327.3 327.5 292.1 331.3 1.13 17 458 6534 -10.7 -25.7 28 15.0 -14.9 277 45 328.1 328.3 292.2 331.8 1.03 18 451 6653 -10.1 -35.1 11 25.0 -15.6 277 46 330.3 330.4 292.2 331.9 0.43 19 400 7570 -15.3 -40.3 10 25.0 -19.8 280 50 335.1 335.2 293.4 336.2 0.28 20 386 7838 -16.5 -55.5 2 39.0 -21.2 278 51 337.0 337.0 293.6 337.2 0.05 21 382 7916 -16.9 -52.9 3 36.0 -21.5 278 51 337.4 337.5 293.7 337.7 0.07 22 308 9484 -30.7 -57.7 5 27.0 -32.7 266 55 339.5 339.6 294.3 339.8 0.05 23 300 9670 -31.5 -60.5 4 29.0 -33.4 265 56 341.0 341.0 294.6 341.1 0.04 24 291 9884 -32.3 -62.3 3 30.0 -34.1 264 57 342.8 342.8 295.0 343.0 0.03 25 267 10482 -38.1 -63.1 6 25.0 -39.3 262 59 342.9 342.9 295.0 343.0 0.03 26 250 10930 -41.1 -66.1 5 25.0 -42.1 260 60 345.0 345.0 295.5 345.1 0.02 27 203 12314 -51.9 -63.9 22 12.0 -52.2 260 67 349.1 349.1 296.5 349.2 0.03 28 200 12410 -52.7 -67.7 15 15.0 -53.0 260 68 349.3 349.3 296.5 349.4 0.02 29 189 12772 -55.9 -70.9 14 15.0 -56.1 261 69 349.9 349.9 296.6 349.9 0.01 30 168 13509 -62.1 -69.1 39 7.0 -62.2 263 71 351.5 351.5 297.0 351.6 0.02 31 160 13809 -64.3 -69.3 50 5.0 -64.4 264 72 352.7 352.7 297.3 352.8 0.02 32 150 14200 -67.3 -73.3 42 6.0 -67.4 265 73 354.2 354.2 297.5 354.2 0.01 33 138 14699 -71.3 -78.3 35 6.9 -71.4 270 77 355.6 355.6 297.8 355.6 0.01 34 137 14742 -71.7 -78.7 34 7.0 -71.8 270 76 355.7 355.7 297.8 355.7 0.01 35 107 16182 -77.5 -87.5 19 10.0 -77.5 266 48 370.7 370.7 300.7 370.8 0.00 36 100 16570 -78.1 -88.1 18 10.0 -78.1 265 40 376.8 376.8 301.7 376.8 0.00 TRP WND 138 14699 -71.3 -78.3 35 6.9 -71.4 270 77 355.6 355.6 297.8 355.6 0.01 Sounding variables and indices 1000-500 mb thick: 5671.00 m Freezing level: 571.19 mb = 4804.39 m = 15762.24 ft Wetbulb zero: 705.28 mb = 3073.72 m = 10084.27 ft Precipitable water: 0.93 inches Sfc-500 mean rel hum: 54.77 % Est. max temperature: 20.36 C = 68.65 F Sfc-Lift cond lev (LCL): 878.91 mb = 1262.14 m = 4140.84 ft T: 8.05 C 700-500 lapse rate: 3.43 C/km ThetaE index: 8.72 C Layer 729.0- 696.0 mb Conv cond level (CCL): 568.25 mb = 4832.02 m = 15852.90 ft Mean mixing ratio: 6.71 g/kg Conv temperature: 49.62 C = 121.31 F Cap Strength: 17.46 C Lifted Index: 17.49 C Risk: None Lifted Index @300 mb: 22.06 C Lifted Index @700 mb: 8.62 C Showalter Index: 17.78 C Risk: None Total Totals Index: 19.40 C Risk: None Vertical Totals Index: 10.30 C Cross Totals Index: 9.10 C K Index: 0.70 Risk: None Sweat Index: 124.80 Risk: None Energy Index: 4.56 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.69 J/kg Max Up Vert Vel: 1.84 m/s Conv Inhibition (B-): 12700.59 J/kg Cap Strength: 17.49 C Lift Cond Lev (LCL): 862.09 mb = 1422.06 m = 4665.48 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 324 at 16 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 1020 6 350 3 0.5 -3.0 | 138 14 -9.2 10.3 1 1000 179 350 7 1.2 -6.9 | 127 11 -8.5 6.4 2 925 839 20 15 -5.1 -14.1 | 87 15 -14.9 -0.8 3 850 1539 35 15 -8.6 -12.3 | 93 18 -18.3 1.0 4 700 3135 280 17 16.7 -3.0 | 214 12 7.0 10.3 5 500 5850 275 42 41.8 -3.7 | 253 34 32.1 9.6 6 400 7570 280 50 49.2 -8.7 | 263 40 39.5 4.6 7 300 9670 265 56 55.8 4.9 | 249 49 46.0 18.1 8 250 10930 260 60 59.1 10.4 | 244 55 49.3 23.7 9 200 12410 260 68 67.0 11.8 | 246 62 57.2 25.1 10 150 14200 265 73 72.7 6.4 | 253 66 63.0 19.6 11 138 14699 270 77 77.0 -0.0 | 259 69 67.3 13.2 12 100 16570 265 40 39.8 3.5 | 241 34 30.1 16.7 Wind Parameters Mean winds (0-6000m): 293.7 at 21.9 knts Storm direction: 323.7 at 16.4 knts Shear (0-3000m) pos: 2.2 neg: 4.3 tot: 6.6 10-3/s Storm rel Dir Shear (0-3000m): 80.5 deg Storm rel helicity (0-3000m) pos: 7.2 neg: -50.7 tot: -43.5 m^2/s^2 ave: -14.5 10^-3 m/s^2 rel: -0.25 Storm rel vorticity (0-3000m) horiz: 8.2 stream: -2.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.03 Bulk Shear: 51.45 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 ------------------------------------------------------------------------------- 500 357 8 121 11| 8.3 0.0 8.3| 0.0 -20.1 -20.1 -40.2 -0.80| 8.8 -7.1 1000 12 11 103 12| 6.5 0.0 6.5| 1.0 -30.6 -29.6 -29.6 -0.67| 7.6 -5.1 1500 19 12 97 14| 4.5 0.0 4.5| 7.0 -30.6 -23.6 -15.7 -0.49| 6.0 -2.9 2000 19 13 94 14| 3.3 2.2 5.6| 7.0 -46.0 -39.0 -19.5 -0.47| 6.8 -3.2 2500 11 14 90 12| 2.7 3.6 6.3| 7.1 -48.6 -41.5 -16.6 -0.37| 7.5 -2.8 3000 1 14 86 10| 2.2 4.3 6.6| 7.2 -50.7 -43.5 -14.5 -0.25| 8.2 -2.0 4000 332 16 79 2| 1.7 4.4 6.1| 29.4 -52.5 -23.2 -5.8 -0.12| 7.5 -0.9 5000 307 18 246 5| 1.3 4.5 5.8| 53.6 -52.5 1.1 0.2 -0.04| 6.9 -0.3 6000 294 22 247 11| 1.1 4.4 5.5| 76.4 -52.5 23.9 4.0 0.00| 6.5 0.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251225.12.gif