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 LGAT... Searching the city database file for: LGAT ... Date:1200Z 8 DEC 25 Station: LGAT WMO ident: 16716 Latitude: 37.90 Longitude: 23.73 Elevation: 15.00 ------------------------------------------------------------------------------- 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 1010 15 17.0 9.0 59 8.0 12.4 0 0 289.3 290.6 285.1 309.5 7.14 1 1000 128 15.4 9.4 67 6.0 12.0 5 18 288.5 289.9 285.1 309.4 7.41 2 980 299 13.6 8.8 73 4.8 10.9 11 19 288.4 289.7 284.9 308.9 7.26 3 940 649 10.6 7.3 80 3.3 8.8 25 20 288.8 290.0 284.6 308.1 6.83 4 925 783 10.2 5.6 73 4.6 7.8 30 20 289.7 290.8 284.3 307.3 6.17 5 912 900 9.2 4.9 74 4.3 6.9 30 20 289.9 290.9 284.1 306.9 5.96 6 850 1479 4.8 3.2 89 1.6 4.0 30 18 291.2 292.2 284.4 307.5 5.67 7 787 2103 0.4 -0.6 93 1.0 -0.1 24 16 292.9 293.8 284.0 306.5 4.65 8 732 2679 -4.3 -4.3 100 0.0 -4.3 18 14 293.9 294.6 283.5 305.1 3.80 9 700 3032 -4.5 -8.0 76 3.5 -5.8 15 13 297.5 298.0 284.0 306.5 2.99 10 682 3236 -5.9 -9.8 74 3.9 -7.3 10 13 298.2 298.6 283.9 306.3 2.66 11 651 3599 -8.5 -12.1 75 3.6 -9.7 1 12 299.2 299.6 284.0 306.4 2.32 12 602 4201 -12.3 -17.3 66 5.0 -13.7 346 10 301.6 301.9 284.1 306.8 1.63 13 534 5104 -19.5 -23.2 72 3.7 -20.3 323 8 303.5 303.7 284.2 307.1 1.11 14 500 5590 -22.3 -30.3 48 8.0 -23.7 310 7 305.9 306.0 284.5 307.9 0.62 15 495 5664 -22.5 -33.5 36 11.0 -24.1 308 7 306.5 306.6 284.6 308.1 0.46 16 400 7190 -35.5 -42.5 49 7.0 -36.0 270 10 308.9 308.9 285.2 309.7 0.23 17 377 7597 -39.3 -46.3 47 7.0 -39.7 285 10 309.1 309.1 285.2 309.7 0.16 18 336 8372 -45.9 -53.9 40 8.0 -46.2 315 9 310.4 310.4 285.6 310.7 0.07 19 317 8758 -46.7 -58.7 24 12.0 -47.0 331 9 314.5 314.5 287.0 314.7 0.04 20 310 8905 -47.9 -60.9 21 13.0 -48.2 336 9 314.9 314.9 287.1 315.0 0.03 21 300 9120 -49.9 -60.9 26 11.0 -50.1 345 9 315.0 315.0 287.1 315.2 0.04 22 291 9319 -51.9 -61.9 29 10.0 -52.1 345 12 314.9 314.9 287.1 315.1 0.03 23 275 9687 -52.5 -63.5 25 11.0 -52.7 345 19 319.2 319.2 288.5 319.3 0.03 24 256 10148 -56.3 -67.3 24 11.0 -56.5 345 27 320.2 320.2 288.8 320.3 0.02 25 250 10300 -53.9 -66.9 19 13.0 -54.1 345 32 325.9 325.9 290.6 326.0 0.02 26 231 10804 -55.7 -70.7 14 15.0 -55.9 347 32 330.6 330.7 291.9 330.7 0.01 27 200 11720 -55.1 -75.1 7 20.0 -55.4 350 31 345.5 345.5 295.6 345.5 0.01 28 150 13560 -55.5 -83.5 2 28.0 -55.8 330 28 374.5 374.5 301.4 374.5 0.00 29 101 16039 -62.7 -91.7 1 29.0 -62.9 315 26 405.4 405.4 305.9 405.4 0.00 30 100 16100 -62.5 -91.5 1 29.0 -62.7 315 26 407.0 407.0 306.1 407.0 0.00 31 70 18300 -63.3 -91.3 1 28.0 -63.6 290 30 449.0 449.0 310.7 449.0 0.00 32 66 18661 -63.5 -91.5 1 28.0 -63.8 289 30 456.1 456.1 311.4 456.2 0.00 33 50 20380 -59.5 -89.5 1 30.0 -60.1 285 31 503.3 503.3 315.2 503.3 0.00 34 49 20506 -59.5 -89.5 1 30.0 -60.1 506.2 506.2 315.4 506.2 0.00 TRP 256 10148 -56.3 -67.3 24 11.0 -56.5 345 27 320.2 320.2 288.8 320.3 0.02 WND Sounding variables and indices 1000-500 mb thick: 5462.00 m Freezing level: 782.32 mb = 2151.61 m = 7059.00 ft Wetbulb zero: 788.05 mb = 2091.68 m = 6862.38 ft Precipitable water: 0.84 inches Sfc-500 mean rel hum: 77.46 % Est. max temperature: 18.64 C = 65.56 F Sfc-Lift cond lev (LCL): 896.15 mb = 1044.55 m = 3426.96 ft T: 8.10 C 700-500 lapse rate: 6.96 C/km ThetaE index: 2.66 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 870.46 mb = 1283.49 m = 4210.88 ft Mean mixing ratio: 6.89 g/kg Conv temperature: 18.43 C = 65.17 F Cap Strength: 1.30 C Lifted Index: 1.03 C Risk: Showers probable Lifted Index @300 mb: 4.89 C Lifted Index @700 mb: 0.40 C Showalter Index: 1.65 C Risk: Showers probable Total Totals Index: 52.60 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.10 C Cross Totals Index: 25.50 C K Index: 26.80 Risk: 40-60 % chance of thunderstorms Sweat Index: 153.40 Risk: None Energy Index: 0.06 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 37.71 J/kg Max Up Vert Vel: 8.68 m/s Conv Inhibition (B-): 26.34 J/kg Cap Strength: 1.30 C Lift Cond Lev (LCL): 894.39 mb = 1060.65 m = 3479.77 ft Lev Free Conv (LFC): 809.39 mb = 1875.36 m = 6152.67 ft Equ Level (EL): 699.39 mb = 3038.81 m = 9969.74 ft B at Equ Level: 36.65 J/kg Max Parcel Lev (MPL): 489.39 mb = 5745.52 m = 18849.91 ft Wind level data Storm motion: 42 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 1010 15 0 0 -0.0 -0.0 | 222 10 6.6 7.4 1 1000 128 5 18 -1.6 -17.9 | 335 12 5.0 -10.6 2 925 783 30 20 -10.0 -17.3 | 19 11 -3.4 -10.0 3 850 1479 30 18 -9.0 -15.6 | 17 9 -2.4 -8.2 4 700 3032 15 13 -3.4 -12.6 | 328 6 3.2 -5.2 5 500 5590 310 7 5.4 -4.5 | 256 12 11.9 2.9 6 400 7190 270 10 10.0 -0.0 | 246 18 16.6 7.4 7 300 9120 345 9 2.3 -8.7 | 279 9 8.9 -1.3 8 256 10148 345 27 7.0 -26.1 | 324 23 13.5 -18.7 9 250 10300 345 32 8.3 -30.9 | 328 28 14.8 -23.5 10 200 11720 350 31 5.4 -30.5 | 333 26 11.9 -23.2 11 150 13560 330 28 14.0 -24.2 | 309 27 20.6 -16.9 12 100 16100 315 26 18.4 -18.4 | 294 27 24.9 -11.0 13 70 18300 290 30 28.2 -10.3 | 275 35 34.7 -2.9 14 50 20380 285 31 29.9 -8.0 | 271 37 36.5 -0.7 Wind Parameters Mean winds (0-6000m): 11.7 at 13.1 knts Storm direction: 41.7 at 9.9 knts Shear (0-3000m) pos: 3.3 neg: 1.3 tot: 4.6 10-3/s Storm rel Dir Shear (0-3000m): 107.4 deg Storm rel helicity (0-3000m) pos: 52.4 neg: -12.0 tot: 40.4 m^2/s^2 ave: 13.5 10^-3 m/s^2 rel: 0.59 Storm rel vorticity (0-3000m) horiz: 6.3 stream: 3.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 20.54 Bulk Shear: 1.84 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 12 17 341 10| 19.7 0.0 19.7| 42.4 0.0 42.4 84.8 0.98| 25.7 25.2 1000 21 18 359 10| 9.9 0.0 9.9| 52.4 -0.3 52.1 52.1 0.96| 15.0 14.4 1500 24 18 6 10| 6.6 0.5 7.1| 52.4 -1.3 51.0 34.0 0.90| 10.5 9.4 2000 25 18 6 9| 5.0 0.9 5.9| 52.4 -5.2 47.1 23.6 0.78| 8.4 6.6 2500 25 18 5 9| 4.0 1.1 5.1| 52.4 -8.8 43.6 17.4 0.68| 7.2 4.9 3000 24 17 2 8| 3.3 1.3 4.6| 52.4 -12.0 40.4 13.5 0.59| 6.3 3.7 4000 20 16 351 7| 2.5 1.7 4.2| 52.4 -21.7 30.7 7.7 0.40| 5.5 2.2 5000 16 14 338 7| 2.0 1.8 3.8| 52.4 -33.0 19.4 3.9 0.27| 4.9 1.3 6000 12 13 325 7| 1.7 1.8 3.5| 52.4 -41.0 11.3 1.9 0.20| 4.4 0.9 Wrote GIF file: /home/apache/climate/data/raob//LGAT/skewt/LGAT.skewt.20251208.12.gif