UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122700.upa.cvt Date: 0000Z 27 DEC 25 Searching for SBCT... Searching the city database file for: SBCT ... Date:0000Z 27 DEC 25 Station: SBCT WMO ident: 83840 Latitude: -25.52 Longitude: -49.17 Elevation: 908.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 111 1 925 800 SFC 913 908 23.0 21.1 89 1.9 21.6 180 3 304.0 307.2 297.9 356.1 17.51 3 850 1535 18.4 18.4 100 0.0 18.4 65 8 305.4 308.4 297.3 352.9 15.86 4 824 1801 16.0 15.4 96 0.6 15.6 78 12 305.6 308.1 295.7 346.0 13.48 5 811 1937 17.2 15.0 87 2.2 15.7 73 12 308.3 310.8 296.3 348.7 13.34 6 700 3183 10.2 10.2 100 0.0 10.2 265 5 313.8 315.9 296.3 348.6 11.24 7 695 3243 9.6 9.6 100 0.0 9.6 268 5 313.8 315.8 296.1 347.4 10.87 8 643 3887 6.8 6.7 99 0.1 6.8 303 4 317.6 319.5 296.2 348.0 9.63 9 641 3912 8.0 4.5 79 3.5 5.9 305 4 319.3 320.9 295.7 345.6 8.27 10 640 3925 6.6 6.1 97 0.5 6.3 305 4 317.8 319.6 296.0 347.1 9.28 11 639 3938 7.8 4.6 80 3.2 5.9 306 4 319.3 321.0 295.7 345.9 8.36 12 637 3964 8.0 5.4 84 2.6 6.4 307 4 319.9 321.6 296.2 348.1 8.87 13 620 4187 5.2 5.1 99 0.1 5.1 320 4 319.1 320.9 296.1 347.5 8.93 14 576 4786 2.2 2.2 100 0.0 2.2 342 13 322.4 323.9 296.1 347.6 7.82 15 573 4828 2.4 2.4 100 0.0 2.4 339 13 323.1 324.7 296.4 348.9 7.97 16 570 4871 1.0 1.0 100 0.0 1.0 336 13 322.0 323.4 295.6 345.3 7.24 17 519 5623 -1.3 -6.3 69 5.0 -3.8 326 12 327.9 328.9 295.1 343.3 4.61 18 515 5685 -2.1 -4.5 84 2.4 -3.3 322 11 327.7 328.8 295.6 345.4 5.33 19 514 5701 -1.9 -8.9 59 7.0 -5.1 321 11 328.1 328.9 294.6 340.9 3.80 20 500 5920 -3.7 -8.3 70 4.6 -5.8 330 10 328.5 329.3 294.8 342.3 4.09 21 498 5952 -4.1 -7.6 77 3.5 -5.8 331 10 328.4 329.3 295.0 343.0 4.34 22 489 6095 -5.1 -11.1 63 6.0 -7.7 335 11 328.9 329.6 294.4 340.3 3.35 23 483 6192 -6.3 -8.2 86 1.9 -7.2 331 11 328.6 329.4 295.0 343.0 4.27 24 444 6845 -10.7 -17.7 56 7.0 -13.2 352 12 331.1 331.5 294.0 338.5 2.14 25 442 6879 -10.9 -15.9 67 5.0 -12.8 353 12 331.2 331.7 294.3 339.9 2.50 26 437 6967 -11.3 -32.3 16 21.0 -16.2 354 12 331.8 331.9 292.8 334.0 0.58 27 433 7037 -11.9 -22.9 40 11.0 -15.2 355 12 331.9 332.2 293.6 336.9 1.40 28 432 7055 -11.9 -23.9 36 12.0 -15.4 355 12 332.1 332.4 293.5 336.7 1.28 29 416 7343 -13.5 -17.5 72 4.0 -14.9 358 16 333.7 334.2 294.8 341.8 2.33 30 400 7640 -15.7 -17.3 87 1.6 -16.3 360 19 334.6 335.1 295.1 343.2 2.46 31 398 7678 -16.1 -17.5 89 1.4 -16.6 360 20 334.5 335.0 295.1 343.1 2.43 32 394 7754 -15.7 -22.7 55 7.0 -17.8 359 21 336.0 336.4 294.7 341.7 1.57 33 390 7831 -16.7 -21.7 65 5.0 -18.2 358 22 335.7 336.1 294.8 341.9 1.73 34 388 7870 -15.9 -38.9 12 23.0 -20.2 358 23 337.2 337.3 294.0 338.6 0.34 35 385 7928 -16.3 -26.3 42 10.0 -19.0 358 24 337.5 337.7 294.7 341.7 1.16 36 382 7987 -16.7 -35.7 18 19.0 -20.5 357 25 337.7 337.8 294.2 339.5 0.48 37 381 8007 -16.9 -28.9 35 12.0 -19.8 357 25 337.7 337.9 294.6 341.1 0.92 38 378 8066 -17.5 -35.5 19 18.0 -21.1 356 26 337.7 337.8 294.2 339.5 0.49 39 367 8287 -18.9 -31.9 31 13.0 -21.8 356 28 338.7 338.8 294.7 341.4 0.72 40 366 8307 -19.7 -24.7 64 5.0 -21.1 357 28 337.9 338.2 295.0 343.0 1.41 41 365 8327 -19.7 -27.7 49 8.0 -21.7 358 27 338.1 338.3 294.8 342.1 1.08 42 364 8348 -19.9 -26.9 54 7.0 -21.7 358 27 338.1 338.4 294.9 342.4 1.16 43 363 8368 -19.9 -23.4 74 3.5 -20.9 359 27 338.4 338.7 295.3 344.2 1.60 44 361 8409 -19.9 -21.9 84 2.0 -20.5 0 26 338.9 339.3 295.6 345.6 1.84 45 350 8639 -20.7 -24.4 72 3.7 -21.7 3 23 340.9 341.2 295.8 346.4 1.52 46 349 8660 -20.7 -25.5 65 4.8 -22.0 2 22 341.1 341.4 295.8 346.2 1.38 47 337 8917 -23.3 -26.6 74 3.3 -24.1 356 21 341.0 341.3 295.7 345.8 1.29 48 332 9027 -23.7 -29.7 58 6.0 -25.1 353 21 341.9 342.1 295.7 345.6 0.98 49 331 9049 -23.9 -32.9 43 9.0 -25.7 353 21 342.0 342.1 295.4 344.7 0.72 50 329 9093 -24.3 -31.3 52 7.0 -25.8 352 20 342.0 342.2 295.6 345.2 0.85 51 328 9115 -24.5 -25.7 90 1.2 -24.8 351 20 342.0 342.3 296.0 347.3 1.44 52 323 9227 -24.9 -30.9 57 6.0 -26.2 348 20 343.0 343.2 295.8 346.4 0.90 53 316 9386 -26.3 -32.3 57 6.0 -27.5 344 19 343.2 343.3 295.8 346.3 0.80 54 300 9760 -29.1 -43.1 25 14.0 -30.9 345 14 344.4 344.4 295.6 345.5 0.28 55 291 9978 -30.9 -51.9 11 21.0 -32.8 349 14 344.8 344.8 295.6 345.3 0.11 56 250 11040 -39.3 -55.3 17 16.0 -40.3 345 18 347.6 347.7 296.2 348.0 0.08 57 200 12520 -52.3 -55.3 70 3.0 -52.4 340 11 349.9 350.0 296.7 350.4 0.11 58 150 14320 -66.7 -71.7 49 5.0 -66.7 285 9 355.2 355.2 297.7 355.3 0.02 59 100 16690 -79.1 -86.1 31 7.0 -79.1 250 8 374.9 374.9 301.4 374.9 0.00 60 85 17606 -81.7 -87.7 35 6.0 -81.7 311 9 387.5 387.5 303.4 387.5 0.00 61 82 17808 -79.3 -87.3 26 8.0 -79.3 333 10 396.4 396.4 304.7 396.4 0.00 62 75 18310 -82.5 -90.5 24 8.0 -82.5 25 11 399.9 399.9 305.2 399.9 0.00 63 73 18462 -78.5 -88.5 18 10.0 -78.5 41 12 411.5 411.5 306.7 411.5 0.00 64 70 18700 -79.7 -88.7 21 9.0 -79.7 25 21 413.9 413.9 307.0 413.9 0.00 65 68 18865 -78.5 -88.5 18 10.0 -78.6 25 21 419.9 419.9 307.7 419.9 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5809.00 m Freezing level: 547.83 mb = 5197.98 m = 17053.52 ft Wetbulb zero: 559.22 mb = 5024.14 m = 16483.21 ft Precipitable water: 1.96 inches Sfc-500 mean rel hum: 92.28 % Est. max temperature: 29.44 C = 84.99 F Sfc-Lift cond lev (LCL): 888.29 mb = 1148.59 m = 3768.30 ft T: 21.23 C 700-500 lapse rate: 5.08 C/km ThetaE index: 10.14 C Layer 850.0- 811.0 mb Conv cond level (CCL): 848.98 mb = 1545.25 m = 5069.65 ft Mean mixing ratio: 15.77 g/kg Conv temperature: 24.43 C = 75.97 F Cap Strength: 0.60 C Lifted Index: -1.55 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.99 C Lifted Index @700 mb: -1.01 C Showalter Index: -1.73 C Risk: Thunderstorms probable Total Totals Index: 44.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.10 C Cross Totals Index: 22.10 C K Index: 40.50 Risk: > 80 % chance of thunderstorms Sweat Index: 246.80 Risk: None Energy Index: -2.14 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 735.51 J/kg Max Up Vert Vel: 38.35 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 0.46 C Lift Cond Lev (LCL): 852.63 mb = 1507.87 m = 4947.01 ft Lev Free Conv (LFC): 847.63 mb = 1558.89 m = 5114.41 ft Equ Level (EL): 807.63 mb = 1972.52 m = 6471.44 ft B at Equ Level: 13.99 J/kg Max Parcel Lev (MPL): 107.63 mb = 16259.98 m = 53345.74 ft Wind level data Storm motion: 16 at 6 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 ---------------------------------------------------------- 0 913 908 180 3 0.0 3.0 | 191 9 1.8 9.2 1 851 1524 70 10 -9.4 -3.4 | 110 8 -7.6 2.8 2 850 1535 65 8 -7.3 -3.4 | 118 6 -5.4 2.8 3 821 1829 80 13 -12.8 -2.3 | 110 12 -11.0 4.0 4 792 2134 60 9 -7.8 -4.5 | 106 6 -6.0 1.7 5 764 2438 40 1 -0.6 -0.8 | 192 6 1.2 5.4 6 700 3183 265 5 5.0 0.4 | 226 10 6.8 6.6 7 613 4267 325 4 2.3 -3.3 | 235 5 4.1 2.9 8 590 4572 355 13 1.1 -13.0 | 336 7 3.0 -6.7 9 568 4877 335 13 5.5 -11.8 | 307 9 7.3 -5.6 10 548 5182 340 19 6.5 -17.9 | 324 14 8.3 -11.6 11 527 5486 335 13 5.5 -11.8 | 307 9 7.3 -5.6 12 508 5791 315 10 7.1 -7.1 | 276 9 8.9 -0.9 13 500 5920 330 10 5.0 -8.7 | 290 7 6.8 -2.5 14 489 6096 335 11 4.6 -10.0 | 300 7 6.5 -3.8 15 470 6401 320 11 7.1 -8.4 | 284 9 8.9 -2.2 16 452 6706 350 12 2.1 -11.8 | 325 7 3.9 -5.6 17 434 7010 355 12 1.0 -12.0 | 333 6 2.9 -5.7 18 400 7640 360 19 -0.0 -19.0 | 352 13 1.8 -12.8 19 369 8230 355 29 2.5 -28.9 | 349 23 4.4 -22.7 20 354 8534 5 23 -2.0 -22.9 | 1 17 -0.2 -16.7 21 300 9754 335 17 7.2 -15.4 | 316 13 9.0 -9.2 22 300 9760 345 14 3.6 -13.5 | 323 9 5.5 -7.3 23 275 10363 355 14 1.2 -13.9 | 338 8 3.1 -7.7 24 264 10668 340 18 6.2 -16.9 | 323 13 8.0 -10.7 25 250 11040 345 18 4.7 -17.4 | 330 13 6.5 -11.2 26 220 11887 340 13 4.4 -12.2 | 314 9 6.3 -6.0 27 210 12192 10 10 -1.7 -9.8 | 358 4 0.1 -3.6 28 200 12520 340 11 3.8 -10.3 | 306 7 5.6 -4.1 29 182 13106 330 13 6.5 -11.3 | 301 10 8.3 -5.0 30 173 13411 360 12 -0.0 -12.0 | 342 6 1.8 -5.8 31 157 14021 360 10 -0.0 -10.0 | 334 4 1.8 -3.8 32 150 14320 285 9 8.7 -2.3 | 250 11 10.5 3.9 33 142 14630 305 15 12.3 -8.6 | 280 14 14.1 -2.4 34 135 14935 310 13 10.0 -8.4 | 280 12 11.8 -2.1 35 128 15240 10 10 -1.7 -9.8 | 358 4 0.1 -3.6 36 122 15545 10 11 -1.9 -10.8 | 1 5 -0.1 -4.6 37 115 15850 35 14 -8.0 -11.5 | 50 8 -6.2 -5.3 38 110 16154 35 10 -5.7 -8.2 | 63 4 -3.9 -2.0 39 104 16459 245 15 13.6 6.3 | 231 20 15.4 12.5 40 100 16690 250 8 7.5 2.7 | 226 13 9.4 8.9 41 99 16764 255 15 14.5 3.9 | 238 19 16.3 10.1 42 93 17069 255 8 7.7 2.1 | 229 13 9.6 8.3 43 71 18593 55 12 -9.8 -6.9 | 85 8 -8.0 -0.7 44 70 18700 25 21 -8.9 -19.0 | 29 15 -7.0 -12.8 45 67 18898 25 21 -8.9 -19.0 | 29 15 -7.0 -12.8 46 63 19202 15 18 -4.7 -17.4 | 14 12 -2.8 -11.2 Wind Parameters Mean winds (0-6000m): 346.5 at 8.6 knts Storm direction: 16.5 at 6.5 knts Shear (0-3000m) pos: 0.4 neg: 1.0 tot: 1.4 10-3/s Storm rel Dir Shear (0-3000m): 44.1 deg Storm rel helicity (0-3000m) pos: 14.5 neg: -39.1 tot: -24.5 m^2/s^2 ave: -8.2 10^-3 m/s^2 rel: -0.09 Storm rel vorticity (0-3000m) horiz: 7.3 stream: -0.7 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 41.02 Bulk Shear: 17.93 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 92 6 148 8| 0.0 9.4 9.4| 0.0 -27.6 -27.6 -55.2 -0.96| 11.1-10.7 1000 80 8 127 8| 0.0 6.7 6.7| 0.0 -36.6 -36.6 -36.6 -0.72| 10.2 -7.3 1500 75 8 125 7| 0.0 1.5 1.5| 6.9 -37.4 -30.5 -20.4 -0.27| 10.7 -2.9 2000 70 7 132 6| 0.0 1.6 1.6| 11.3 -37.4 -26.1 -13.1 -0.14| 9.2 -1.2 2500 69 6 135 6| 0.0 1.2 1.2| 12.9 -39.1 -26.1 -10.4 -0.12| 8.3 -1.0 3000 56 6 134 4| 0.4 1.0 1.4| 14.5 -39.1 -24.5 -8.2 -0.09| 7.3 -0.7 4000 14 7 296 0| 0.9 1.4 2.4| 27.3 -46.3 -19.1 -4.8 0.03| 7.5 0.2 5000 352 8 300 4| 0.8 0.8 1.6| 39.1 -67.2 -28.1 -5.6 -0.02| 7.8 -0.2 6000 346 9 300 4| 1.1 0.8 1.9| 54.5 -71.9 -17.4 -2.9 0.04| 7.4 0.3 Wrote GIF file: /home/apache/climate/data/raob//SBCT/skewt/SBCT.skewt.20251227.00.gif