UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121700.upa.cvt Date: 0000Z 17 DEC 25 Searching for SBCT... Searching the city database file for: SBCT ... Date:0000Z 17 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 112 1 925 789 SFC 912 908 17.0 16.4 96 0.6 16.6 110 13 297.9 300.2 293.2 335.5 12.97 3 897 1049 15.0 15.0 100 0.0 15.0 112 16 297.2 299.4 292.3 332.1 12.04 4 850 1506 13.8 13.8 100 0.0 13.8 90 17 300.6 302.8 293.1 335.1 11.75 5 844 1566 13.4 13.4 100 0.0 13.4 92 16 300.8 302.9 293.0 334.6 11.53 6 824 1769 15.0 14.9 99 0.1 15.0 98 11 304.6 307.0 295.1 343.5 13.04 7 700 3139 8.4 8.4 100 0.0 8.4 225 15 311.8 313.7 294.9 342.4 9.94 8 698 3163 8.2 8.2 100 0.0 8.2 225 15 311.8 313.7 294.8 342.1 9.83 9 695 3198 6.2 6.1 99 0.1 6.1 225 16 310.0 311.6 293.3 336.2 8.53 10 685 3317 5.8 5.8 100 0.0 5.8 225 17 310.8 312.4 293.6 336.9 8.48 11 683 3341 7.2 7.2 100 0.0 7.2 225 18 312.6 314.4 294.7 341.6 9.38 12 678 3401 5.4 -0.6 65 6.0 2.2 229 18 311.3 312.3 291.2 328.2 5.41 13 676 3425 6.8 -19.2 14 26.0 -2.4 231 18 313.1 313.4 287.8 317.3 1.24 14 675 3437 7.6 -11.4 25 19.0 -0.4 231 17 314.2 314.6 289.3 321.9 2.37 15 670 3499 8.6 -19.4 12 28.0 -1.6 236 17 315.9 316.2 288.8 320.1 1.23 16 662 3598 7.8 -3.2 46 11.0 2.2 244 16 316.1 317.0 291.9 330.7 4.56 17 651 3736 7.2 -7.8 33 15.0 0.3 250 16 317.0 317.6 291.0 327.6 3.26 18 603 4360 2.6 -3.4 65 6.0 -0.4 281 18 318.7 319.6 292.9 334.6 4.94 19 559 4968 -1.9 -11.9 46 10.0 -6.0 258 23 320.3 320.9 291.6 329.5 2.75 20 553 5054 -1.7 -20.7 22 19.0 -8.0 262 22 321.6 321.8 290.6 326.2 1.33 21 551 5083 -1.7 -12.7 43 11.0 -6.2 263 22 321.9 322.4 291.9 330.6 2.61 22 530 5391 -3.7 -11.7 54 8.0 -7.0 276 21 323.1 323.7 292.5 332.9 2.95 23 520 5541 -4.3 -21.3 25 17.0 -9.8 277 21 324.1 324.4 291.4 328.8 1.34 24 507 5741 -4.7 -36.7 6 32.0 -11.9 263 24 326.0 326.1 290.9 327.2 0.32 25 500 5850 -5.5 -38.5 5 33.0 -12.5 265 25 326.3 326.4 291.0 327.4 0.27 26 494 5945 -6.1 -41.1 4 35.0 -13.0 265 27 326.7 326.8 291.0 327.5 0.21 27 485 6089 -5.1 -22.1 25 17.0 -10.6 265 30 329.7 330.0 292.9 334.4 1.34 28 457 6554 -9.3 -15.3 62 6.0 -11.6 280 26 330.1 330.6 294.0 338.9 2.55 29 444 6777 -9.1 -18.1 48 9.0 -12.3 283 27 333.1 333.5 294.4 340.4 2.07 30 430 7025 -11.1 -22.1 40 11.0 -14.6 277 33 333.6 333.9 294.1 339.0 1.51 31 416 7279 -11.7 -53.7 2 42.0 -17.7 271 40 336.0 336.0 293.4 336.2 0.06 32 405 7485 -12.3 -46.3 4 34.0 -18.0 276 42 337.8 337.8 293.9 338.4 0.15 33 400 7580 -12.1 -32.1 17 20.0 -17.0 280 42 339.3 339.4 294.7 341.7 0.65 34 399 7599 -11.9 -28.9 23 17.0 -16.5 280 42 339.8 339.9 295.1 343.1 0.88 35 388 7812 -13.7 -25.7 36 12.0 -17.1 283 41 340.1 340.4 295.4 344.6 1.22 36 357 8436 -19.1 -38.1 17 19.0 -22.6 285 41 341.1 341.2 295.0 342.6 0.40 37 312 9419 -27.5 -32.1 65 4.6 -28.4 285 47 342.8 342.9 295.7 345.9 0.83 38 300 9700 -28.9 -36.9 46 8.0 -30.2 285 49 344.6 344.8 295.9 346.8 0.54 39 297 9772 -29.3 -39.3 37 10.0 -30.7 284 49 345.1 345.2 295.9 346.8 0.43 40 269 10472 -34.5 -45.5 32 11.0 -35.6 279 54 347.4 347.5 296.3 348.4 0.24 41 261 10682 -36.5 -39.3 75 2.8 -36.8 277 56 347.5 347.6 296.5 349.4 0.48 42 259 10736 -36.9 -42.9 54 6.0 -37.5 277 56 347.7 347.7 296.4 349.0 0.33 43 255 10843 -37.3 -40.9 69 3.6 -37.7 276 57 348.6 348.7 296.7 350.3 0.42 44 250 10980 -38.3 -42.3 66 4.0 -38.7 275 58 349.1 349.2 296.8 350.6 0.37 45 220 11850 -45.1 -50.1 57 5.0 -45.4 281 49 351.6 351.7 297.1 352.4 0.18 46 215 12003 -46.5 -53.5 45 7.0 -46.9 283 47 351.8 351.8 297.1 352.3 0.12 47 213 12065 -47.1 -51.2 63 4.1 -47.3 284 46 351.8 351.8 297.1 352.5 0.16 48 211 12128 -47.7 -55.7 39 8.0 -48.1 284 45 351.8 351.8 297.1 352.2 0.10 49 200 12480 -51.1 -55.7 58 4.6 -51.3 290 47 351.8 351.9 297.1 352.3 0.10 50 183 13048 -56.7 -59.4 71 2.7 -56.8 288 50 351.8 351.8 297.1 352.1 0.07 51 163 13766 -63.5 -68.5 51 5.0 -63.6 286 53 352.2 352.2 297.1 352.3 0.02 52 151 14230 -67.0 -72.9 43 5.9 -67.1 270 64 354.0 354.0 297.5 354.1 0.01 53 150 14270 -67.3 -73.3 42 6.0 -67.4 270 63 354.2 354.2 297.5 354.2 0.01 54 143 14557 -68.5 -75.5 36 7.0 -68.5 266 58 356.9 356.9 298.1 357.0 0.01 55 137 14815 -66.7 -80.7 12 14.0 -66.8 262 51 364.5 364.5 299.5 364.5 0.00 56 100 16660 -79.5 -87.5 25 8.0 -79.5 330 32 374.1 374.1 301.3 374.1 0.00 57 95 16949 -81.1 -88.1 30 7.0 -81.1 325 35 376.5 376.5 301.7 376.5 0.00 58 84 17646 -77.7 -87.7 18 10.0 -77.7 282 31 396.9 396.9 304.8 396.9 0.00 59 75 18287 -81.3 -89.3 25 8.0 -81.3 355 20 402.4 402.4 305.5 402.4 0.00 60 70 18680 -75.5 -87.5 14 12.0 -75.6 30 21 422.9 422.9 308.0 422.9 0.00 61 62 19388 -71.1 -89.1 5 18.0 -71.2 3 15 447.5 447.5 310.6 447.6 0.00 62 52 20418 -74.1 -91.1 6 17.0 -74.2 15 13 463.6 463.6 312.1 463.7 0.00 63 50 20650 -67.3 -91.3 2 24.0 -67.5 45 20 484.9 484.9 313.8 484.9 0.00 64 49 20772 -64.5 -91.5 1 27.0 -64.8 50 18 494.3 494.3 314.5 494.3 0.00 65 45 21296 -61.7 -89.7 1 28.0 -62.2 120 3 513.3 513.3 315.9 513.3 0.00 66 41 21867 -64.7 -90.7 2 26.0 -65.1 131 11 519.7 519.7 316.3 519.7 0.00 67 36 22666 -61.9 -89.9 1 28.0 -62.5 150 16 546.6 546.6 317.9 546.6 0.00 68 31 23587 -63.3 -90.3 1 27.0 -63.9 88 20 566.7 566.7 319.0 566.8 0.00 69 30 23790 -60.1 -90.1 1 30.0 -61.0 90 14 580.8 580.8 319.7 580.8 0.00 70 23 25479 -51.9 -86.9 1 35.0 -54.6 117 25 650.8 650.8 322.7 650.8 0.01 71 20 26380 -53.7 -87.7 1 34.0 -56.2 95 35 671.8 671.8 323.5 671.9 0.01 72 18 27059 -52.7 -86.7 1 34.0 -55.7 98 34 695.5 695.5 324.3 695.6 0.01 TRP 95 16949 -81.1 -88.1 30 7.0 -81.1 325 35 376.5 376.5 301.7 376.5 0.00 WND 151 14230 -67.0 -72.9 43 5.9 -67.1 270 64 354.0 354.0 297.5 354.1 0.01 Sounding variables and indices 1000-500 mb thick: 5738.00 m Freezing level: 577.58 mb = 4711.44 m = 15457.30 ft Wetbulb zero: 677.03 mb = 3412.67 m = 11196.27 ft Precipitable water: 1.37 inches Sfc-500 mean rel hum: 70.31 % Est. max temperature: 26.86 C = 80.35 F Sfc-Lift cond lev (LCL): 904.13 mb = 981.94 m = 3221.56 ft T: 15.95 C 700-500 lapse rate: 5.13 C/km ThetaE index: 7.30 C Layer 700.0- 685.0 mb Conv cond level (CCL): 898.52 mb = 1035.01 m = 3395.66 ft Mean mixing ratio: 12.17 g/kg Conv temperature: 16.44 C = 61.59 F Cap Strength: 4.01 C Lifted Index: 2.95 C Risk: None Lifted Index @300 mb: 7.58 C Lifted Index @700 mb: 1.99 C Showalter Index: 3.39 C Risk: None Total Totals Index: 38.60 C Risk: None Vertical Totals Index: 19.30 C Cross Totals Index: 19.30 C K Index: 33.10 Risk: 60-80 % chance of thunderstorms Sweat Index: 224.60 Risk: None Energy Index: -1.38 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 35.89 J/kg Max Up Vert Vel: 8.47 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 4.00 C Lift Cond Lev (LCL): 860.05 mb = 1406.26 m = 4613.67 ft Lev Free Conv (LFC): 855.05 mb = 1455.72 m = 4775.91 ft Equ Level (EL): 835.05 mb = 1656.27 m = 5433.90 ft B at Equ Level: 33.45 J/kg Max Parcel Lev (MPL): 785.05 mb = 2175.89 m = 7138.67 ft Wind level data Storm motion: 282 at 14 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 ---------------------------------------------------------- 0 912 908 110 13 -12.2 4.4 | 106 27 -26.0 7.4 1 879 1219 115 20 -18.1 8.5 | 110 34 -31.9 11.4 2 850 1506 90 17 -17.0 0.0 | 96 31 -30.8 3.0 3 818 1829 100 10 -9.8 1.7 | 101 24 -23.6 4.7 4 789 2134 195 12 3.1 11.6 | 144 18 -10.7 14.6 5 761 2438 190 11 1.9 10.8 | 139 18 -11.9 13.8 6 734 2743 210 11 5.5 9.5 | 146 15 -8.3 12.5 7 700 3139 225 15 10.6 10.6 | 167 14 -3.2 13.6 8 682 3353 225 18 12.7 12.7 | 176 16 -1.1 15.7 9 656 3658 250 16 15.0 5.5 | 188 9 1.2 8.4 10 632 3962 250 18 16.9 6.2 | 199 10 3.1 9.1 11 609 4267 285 17 16.4 -4.4 | 299 3 2.6 -1.4 12 564 4877 255 23 22.2 6.0 | 223 12 8.4 8.9 13 523 5486 280 20 19.7 -3.5 | 275 6 5.9 -0.5 14 504 5791 260 25 24.6 4.3 | 236 13 10.8 7.3 15 500 5850 265 25 24.9 2.2 | 245 12 11.1 5.2 16 484 6096 265 30 29.9 2.6 | 251 17 16.1 5.6 17 448 6706 285 25 24.1 -6.5 | 289 11 10.3 -3.5 18 414 7315 270 41 41.0 -0.0 | 264 27 27.2 3.0 19 400 7580 280 42 41.4 -7.3 | 279 28 27.6 -4.3 20 382 7925 285 41 39.6 -10.6 | 286 27 25.8 -7.6 21 366 8230 285 40 38.6 -10.4 | 287 26 24.8 -7.4 22 300 9700 285 49 47.3 -12.7 | 286 35 33.5 -9.7 23 250 10980 275 58 57.8 -5.1 | 273 44 44.0 -2.1 24 239 11278 275 58 57.8 -5.1 | 273 44 44.0 -2.1 25 209 12192 285 44 42.5 -11.4 | 286 30 28.7 -8.4 26 200 12480 290 47 44.2 -16.1 | 293 33 30.4 -13.1 27 156 14021 285 54 52.2 -14.0 | 286 40 38.4 -11.0 28 151 14230 270 64 64.0 -0.0 | 267 50 50.2 3.0 29 150 14270 270 63 63.0 -0.0 | 267 49 49.2 3.0 30 149 14326 270 64 64.0 -0.0 | 267 50 50.2 3.0 31 134 14935 260 48 47.3 8.3 | 251 35 33.5 11.3 32 121 15545 295 24 21.8 -10.1 | 312 11 7.9 -7.2 33 103 16459 295 29 26.3 -12.3 | 307 16 12.5 -9.3 34 100 16660 330 32 16.0 -27.7 | 355 25 2.2 -24.7 35 95 16949 325 35 20.1 -28.7 | 346 26 6.3 -25.7 36 93 17069 325 32 18.4 -26.2 | 349 24 4.6 -23.2 37 84 17678 280 31 30.5 -5.4 | 278 17 16.7 -2.4 38 79 17983 305 19 15.6 -10.9 | 347 8 1.8 -7.9 39 75 18288 355 20 1.7 -19.9 | 35 21 -12.1 -16.9 40 71 18593 345 22 5.7 -21.3 | 24 20 -8.1 -18.3 41 70 18680 30 21 -10.5 -18.2 | 58 29 -24.3 -15.2 42 67 18898 30 20 -10.0 -17.3 | 59 28 -23.8 -14.3 43 58 19812 340 11 3.8 -10.3 | 54 12 -10.0 -7.4 44 55 20117 355 8 0.7 -8.0 | 69 14 -13.1 -5.0 45 52 20422 15 13 -3.4 -12.6 | 61 20 -17.2 -9.6 46 50 20650 45 20 -14.1 -14.1 | 68 30 -27.9 -11.2 47 49 20726 50 18 -13.8 -11.6 | 73 29 -27.6 -8.6 48 47 21031 50 20 -15.3 -12.9 | 71 31 -29.1 -9.9 49 45 21336 130 1 -0.8 0.6 | 104 15 -14.6 3.6 50 43 21641 150 15 -7.5 13.0 | 127 27 -21.3 16.0 51 40 21946 125 10 -8.2 5.7 | 112 24 -22.0 8.7 52 39 22250 165 11 -2.8 10.6 | 129 21 -16.6 13.6 53 37 22555 160 17 -5.8 16.0 | 134 27 -19.6 19.0 54 33 23165 105 12 -11.6 3.1 | 103 26 -25.4 6.1 55 30 23774 80 24 -23.6 -4.2 | 88 37 -37.4 -1.2 56 30 23790 90 14 -14.0 0.0 | 96 28 -27.8 3.0 57 29 24079 85 19 -18.9 -1.7 | 92 33 -32.7 1.3 58 27 24384 100 10 -9.8 1.7 | 101 24 -23.6 4.7 59 26 24689 90 19 -19.0 0.0 | 95 33 -32.8 3.0 60 24 25298 120 21 -18.2 10.5 | 113 35 -32.0 13.5 61 22 25908 110 33 -31.0 11.3 | 108 47 -44.8 14.3 62 21 26213 80 30 -29.5 -5.2 | 87 43 -43.3 -2.2 63 20 26380 95 35 -34.9 3.1 | 97 49 -48.7 6.0 64 19 26518 105 31 -29.9 8.0 | 104 45 -43.7 11.0 65 18 26822 95 35 -34.9 3.1 | 97 49 -48.7 6.0 66 15 27432 90 25 -25.0 0.0 | 94 39 -38.8 3.0 Wind Parameters Mean winds (0-6000m): 252.2 at 18.8 knts Storm direction: 282.2 at 14.1 knts Shear (0-3000m) pos: 5.9 neg: 1.0 tot: 6.9 10-3/s Storm rel Dir Shear (0-3000m): 91.2 deg Storm rel helicity (0-3000m) pos: 181.5 neg: -72.7 tot: 108.8 m^2/s^2 ave: 36.3 10^-3 m/s^2 rel: 0.42 Storm rel vorticity (0-3000m) horiz: 10.5 stream: 4.4 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.23 Bulk Shear: 155.17 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 ------------------------------------------------------------------------------- 500 111 17 107 31| 0.0 6.1 6.1| 15.6 -47.3 -31.8 -63.5 -0.28| 12.9 -3.6 1000 104 16 103 30| 5.0 3.0 8.0| 64.5 -68.3 -3.8 -3.8 0.05| 13.8 0.6 1500 121 14 112 28| 7.4 2.0 9.4|131.9 -72.7 59.2 39.4 0.29| 14.2 4.1 2000 138 13 120 26| 6.8 1.5 8.3|148.6 -72.7 75.9 38.0 0.34| 12.1 4.1 2500 161 14 131 24| 6.7 1.2 7.9|172.0 -72.7 99.3 39.7 0.41| 11.1 4.6 3000 183 14 143 22| 5.9 1.0 6.9|181.5 -72.7 108.8 36.3 0.42| 10.5 4.4 4000 220 16 166 15| 4.7 0.8 5.5|192.0 -84.4 107.6 26.9 0.32| 10.6 3.4 5000 240 17 184 12| 3.8 1.2 5.0|213.8 -96.4 117.5 23.5 0.30| 10.4 3.1 6000 252 19 205 10| 3.7 1.0 4.7|250.2-105.0 145.2 24.2 0.31| 10.4 3.2 Wrote GIF file: /home/apache/climate/data/raob//SBCT/skewt/SBCT.skewt.20251217.00.gif