UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122500.upa.cvt Date: 0000Z 25 DEC 25 Searching for SBCT... Searching the city database file for: SBCT ... Date:0000Z 25 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 85 1 925 783 SFC 912 908 23.2 20.7 86 2.5 21.4 110 7 304.3 307.4 297.7 355.2 17.09 3 898 1044 24.4 17.4 65 7.0 19.5 97 10 306.8 309.5 296.4 349.2 14.06 4 866 1362 23.6 16.6 65 7.0 18.7 52 14 309.2 311.8 296.9 351.3 13.85 5 850 1525 22.4 16.4 69 6.0 18.2 35 12 309.6 312.2 297.1 352.0 13.94 6 712 3035 9.8 9.7 99 0.1 9.7 328 11 311.8 313.8 295.4 344.7 10.68 7 700 3177 9.0 8.5 97 0.5 8.7 330 11 312.5 314.4 295.1 343.3 10.01 8 685 3356 8.6 5.0 78 3.6 6.5 328 11 313.9 315.5 294.0 338.9 8.01 9 636 3965 4.4 1.7 83 2.7 2.9 323 9 315.9 317.2 293.7 337.4 6.82 10 634 3991 5.0 0.0 70 5.0 2.3 323 9 316.9 318.0 293.3 336.1 6.05 11 581 4697 0.4 0.4 100 0.0 0.4 336 4 319.5 320.8 294.6 341.3 6.80 12 577 4752 0.0 -1.1 92 1.1 -0.6 332 4 319.7 320.9 294.1 339.4 6.13 13 569 4865 1.4 -6.6 55 8.0 -2.4 323 5 322.6 323.4 293.3 336.1 4.10 14 566 4907 1.0 -6.0 59 7.0 -2.4 320 6 322.6 323.5 293.5 336.8 4.32 15 561 4979 2.6 -25.4 11 28.0 -6.3 315 6 325.3 325.5 291.3 328.4 0.86 16 533 5391 0.0 -47.0 1 47.0 -9.2 283 10 327.0 327.0 291.0 327.4 0.10 17 503 5853 -2.7 -39.7 4 37.0 -10.9 298 14 329.2 329.2 291.7 330.1 0.24 18 500 5900 -3.1 -25.1 16 22.0 -9.9 300 15 329.3 329.5 292.5 332.8 1.00 19 497 5947 -3.5 -17.5 33 14.0 -8.7 300 15 329.3 329.7 293.3 336.1 1.95 20 487 6108 -3.3 -41.3 3 38.0 -11.5 301 14 331.5 331.5 292.3 332.3 0.21 21 433 7024 -10.1 -25.1 28 15.0 -14.5 345 10 334.2 334.4 293.9 338.4 1.15 22 400 7630 -13.1 -37.1 11 24.0 -18.1 285 9 338.0 338.0 294.2 339.5 0.40 23 358 8468 -18.3 -43.3 9 25.0 -22.4 301 14 341.9 341.9 295.0 342.8 0.23 24 300 9760 -29.7 -44.7 22 15.0 -31.4 290 16 343.5 343.6 295.4 344.5 0.24 25 295 9879 -30.5 -45.5 22 15.0 -32.2 290 16 344.0 344.1 295.5 344.9 0.22 26 283 10171 -31.7 -49.7 15 18.0 -33.4 267 14 346.4 346.5 296.0 347.0 0.14 27 280 10246 -32.1 -42.1 36 10.0 -33.3 251 12 346.9 347.0 296.3 348.3 0.34 28 273 10423 -33.9 -41.9 44 8.0 -34.8 236 10 346.8 346.9 296.3 348.2 0.35 29 263 10682 -35.7 -48.7 25 13.0 -36.8 289 10 347.9 347.9 296.3 348.6 0.17 30 250 11030 -38.9 -48.9 34 10.0 -39.7 330 9 348.2 348.3 296.4 349.0 0.18 31 239 11339 -41.7 -50.7 37 9.0 -42.3 338 10 348.5 348.6 296.4 349.2 0.15 32 222 11839 -45.7 -52.7 45 7.0 -46.1 325 10 349.8 349.8 296.7 350.4 0.13 33 200 12530 -51.1 -62.1 26 11.0 -51.4 255 5 351.8 351.9 297.1 352.0 0.04 34 197 12628 -51.7 -63.7 22 12.0 -52.0 252 6 352.4 352.4 297.2 352.6 0.04 35 170 13564 -60.5 -65.4 52 4.9 -60.6 221 10 353.0 353.0 297.3 353.1 0.03 36 163 13824 -62.9 -70.9 33 8.0 -63.0 218 11 353.2 353.2 297.3 353.3 0.02 37 150 14330 -66.7 -70.5 59 3.8 -66.7 185 5 355.2 355.2 297.7 355.3 0.02 38 119 15695 -76.5 -81.5 45 5.0 -76.5 79 5 361.5 361.5 299.0 361.5 0.00 39 112 16043 -77.1 -81.4 50 4.3 -77.1 24 15 366.7 366.7 299.9 366.7 0.00 40 100 16690 -79.1 -88.1 21 9.0 -79.1 5 7 374.9 374.9 301.4 374.9 0.00 41 99 16747 -79.3 -88.3 21 9.0 -79.3 10 8 375.6 375.6 301.5 375.6 0.00 42 92 17165 -77.1 -89.1 13 12.0 -77.1 2 13 387.9 387.9 303.5 387.9 0.00 43 74 18405 -80.1 -90.1 17 10.0 -80.1 35 13 406.5 406.5 306.0 406.5 0.00 44 70 18720 -78.5 -89.5 15 11.0 -78.6 100 27 416.4 416.4 307.3 416.5 0.00 45 63 19323 -78.5 -90.5 12 12.0 -78.6 89 26 429.2 429.2 308.7 429.2 0.00 46 51 20552 -72.1 -92.1 3 20.0 -72.2 107 18 470.9 470.9 312.7 470.9 0.00 47 50 20670 -69.1 -92.1 2 23.0 -69.3 100 25 480.7 480.7 313.5 480.7 0.00 48 49 20791 -67.7 -90.7 2 23.0 -67.9 96 17 486.8 486.8 314.0 486.8 0.00 49 46 21171 -65.7 -90.7 2 25.0 -66.0 100 26 500.5 500.5 315.0 500.5 0.00 50 39 22174 -64.1 -91.1 1 27.0 -64.6 73 25 528.7 528.7 316.8 528.7 0.00 51 39 22174 -65.1 -91.1 2 26.0 -65.5 73 25 526.2 526.2 316.7 526.2 0.00 52 30 23800 -56.7 -88.7 1 32.0 -58.0 100 22 590.1 590.1 320.2 590.1 0.00 53 27 24473 -53.3 -87.3 1 34.0 -55.4 93 23 617.7 617.7 321.4 617.7 0.01 54 23 25504 -54.1 -87.1 1 33.0 -56.3 106 25 644.3 644.3 322.4 644.4 0.01 TRP 99 16747 -79.3 -88.3 21 9.0 -79.3 10 8 375.6 375.6 301.5 375.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5815.00 m Freezing level: 533.00 mb = 5390.82 m = 17686.20 ft Wetbulb zero: 579.42 mb = 4718.97 m = 15482.01 ft Precipitable water: 1.50 inches Sfc-500 mean rel hum: 66.02 % Est. max temperature: 29.80 C = 85.65 F Sfc-Lift cond lev (LCL): 879.55 mb = 1225.74 m = 4021.42 ft T: 23.94 C 700-500 lapse rate: 4.44 C/km ThetaE index: 15.93 C Layer 712.0- 581.0 mb Conv cond level (CCL): 763.75 mb = 2437.27 m = 7996.21 ft Mean mixing ratio: 13.98 g/kg Conv temperature: 29.77 C = 85.59 F Cap Strength: 1.81 C Lifted Index: -0.54 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.89 C Lifted Index @700 mb: -1.86 C Showalter Index: -0.83 C Risk: Thunderstorms probable Total Totals Index: 45.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.50 C Cross Totals Index: 19.50 C K Index: 41.40 Risk: > 80 % chance of thunderstorms Sweat Index: 235.80 Risk: None Energy Index: -3.68 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 335.47 J/kg Max Up Vert Vel: 25.90 m/s Conv Inhibition (B-): 46.17 J/kg Cap Strength: 1.81 C Lift Cond Lev (LCL): 789.27 mb = 2157.06 m = 7076.88 ft Lev Free Conv (LFC): 744.27 mb = 2657.59 m = 8719.03 ft Equ Level (EL): 554.27 mb = 5075.89 m = 16652.97 ft B at Equ Level: 184.73 J/kg Max Parcel Lev (MPL): 124.27 mb = 15439.59 m = 50654.20 ft Wind level data Storm motion: 353 at 7 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 7 -6.6 2.4 | 142 12 -7.4 9.4 1 880 1219 80 15 -14.8 -2.6 | 106 16 -15.6 4.4 2 850 1524 20 12 -4.1 -11.3 | 49 7 -5.0 -4.3 3 850 1525 35 12 -6.9 -9.8 | 70 8 -7.7 -2.8 4 791 2134 315 10 7.1 -7.1 | 271 6 6.2 -0.1 5 763 2438 295 10 9.1 -4.2 | 251 9 8.2 2.8 6 737 2743 300 10 8.7 -5.0 | 256 8 7.8 2.0 7 711 3048 330 11 5.5 -9.5 | 298 5 4.6 -2.5 8 700 3177 330 11 5.5 -9.5 | 298 5 4.6 -2.5 9 612 4267 320 8 5.1 -6.1 | 258 4 4.3 0.9 10 589 4572 345 3 0.8 -2.9 | 179 4 -0.1 4.1 11 526 5486 275 11 11.0 -1.0 | 239 12 10.1 6.1 12 507 5791 295 12 10.9 -5.1 | 259 10 10.0 1.9 13 500 5900 300 15 13.0 -7.5 | 272 12 12.1 -0.5 14 488 6096 300 14 12.1 -7.0 | 270 11 11.3 0.0 15 469 6401 335 3 1.3 -2.7 | 185 4 0.4 4.3 16 433 7010 345 10 2.6 -9.7 | 327 3 1.7 -2.6 17 400 7630 285 9 8.7 -2.3 | 239 9 7.8 4.7 18 384 7925 295 10 9.1 -4.2 | 251 9 8.2 2.8 19 369 8230 290 14 13.2 -4.8 | 260 13 12.3 2.2 20 354 8534 305 14 11.5 -8.0 | 275 11 10.6 -1.0 21 326 9144 280 17 16.7 -3.0 | 256 16 15.9 4.1 22 313 9449 290 17 16.0 -5.8 | 265 15 15.1 1.2 23 300 9754 305 16 13.1 -9.2 | 280 12 12.3 -2.2 24 300 9760 290 16 15.0 -5.5 | 264 14 14.2 1.5 25 287 10058 290 16 15.0 -5.5 | 264 14 14.2 1.5 26 275 10363 225 10 7.1 7.1 | 204 15 6.2 14.1 27 252 10973 350 10 1.7 -9.8 | 343 3 0.9 -2.8 28 250 11030 330 9 4.5 -7.8 | 282 4 3.6 -0.8 29 241 11278 335 10 4.2 -9.1 | 301 4 3.4 -2.0 30 230 11582 350 12 2.1 -11.8 | 346 5 1.2 -4.8 31 200 12530 255 5 4.8 1.3 | 206 9 4.0 8.3 32 174 13411 230 10 7.7 6.4 | 207 15 6.8 13.4 33 165 13716 210 11 5.5 9.5 | 196 17 4.6 16.5 34 158 14021 235 10 8.2 5.7 | 210 15 7.3 12.8 35 150 14330 185 5 0.4 5.0 | 178 12 -0.4 12.0 36 122 15545 105 1 -1.0 0.3 | 166 7 -1.8 7.3 37 116 15850 45 10 -7.1 -7.1 | 90 8 -7.9 -0.1 38 110 16154 10 19 -3.3 -18.7 | 20 12 -4.2 -11.7 39 104 16459 350 13 2.3 -12.8 | 346 6 1.4 -5.8 40 100 16690 5 7 -0.6 -7.0 | 92 1 -1.5 0.0 41 99 16747 10 8 -1.4 -7.9 | 69 2 -2.2 -0.9 42 94 17069 5 7 -0.6 -7.0 | 92 1 -1.5 0.0 43 89 17374 355 27 2.4 -26.9 | 356 20 1.5 -19.9 44 84 17678 345 18 4.7 -17.4 | 340 11 3.8 -10.4 45 80 17983 45 14 -9.9 -9.9 | 75 11 -10.8 -2.9 46 72 18593 30 12 -6.0 -10.4 | 64 8 -6.9 -3.4 47 70 18720 100 27 -26.6 4.7 | 113 30 -27.4 11.7 48 68 18898 105 23 -22.2 6.0 | 119 26 -23.1 13.0 49 64 19202 100 28 -27.6 4.9 | 113 31 -28.4 11.9 50 61 19507 75 24 -23.2 -6.2 | 92 24 -24.0 0.8 51 58 19812 35 14 -8.0 -11.5 | 63 10 -8.9 -4.5 52 55 20117 40 13 -8.4 -10.0 | 72 10 -9.2 -2.9 53 52 20422 115 10 -9.1 4.2 | 139 15 -9.9 11.2 54 50 20670 100 25 -24.6 4.3 | 114 28 -25.5 11.4 55 50 20726 95 14 -13.9 1.2 | 119 17 -14.8 8.2 56 47 21031 100 27 -26.6 4.7 | 113 30 -27.4 11.7 57 43 21641 100 24 -23.6 4.2 | 115 27 -24.5 11.2 58 39 22250 70 25 -23.5 -8.6 | 86 24 -24.3 -1.5 59 35 22860 70 24 -22.6 -8.2 | 87 23 -23.4 -1.2 60 33 23165 75 17 -16.4 -4.4 | 99 17 -17.3 2.6 61 32 23470 110 14 -13.2 4.8 | 130 18 -14.0 11.8 62 30 23774 110 28 -26.3 9.6 | 121 32 -27.2 16.6 63 30 23800 100 22 -21.7 3.8 | 116 25 -22.5 10.8 64 26 24384 90 24 -24.0 0.0 | 106 26 -24.9 7.0 65 22 24994 110 25 -23.5 8.6 | 123 29 -24.3 15.6 66 18 25908 70 11 -10.3 -3.8 | 106 12 -11.2 3.3 Wind Parameters Mean winds (0-6000m): 323.0 at 9.4 knts Storm direction: 353.0 at 7.1 knts Shear (0-3000m) pos: 0.9 neg: 2.8 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 130.7 deg Storm rel helicity (0-3000m) pos: 10.1 neg: -86.0 tot: -75.9 m^2/s^2 ave: -25.3 10^-3 m/s^2 rel: -0.61 Storm rel vorticity (0-3000m) horiz: 8.4 stream: -5.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 7.61 Bulk Shear: 44.07 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 78 12 109 14| 0.0 12.6 12.6| 0.0 -57.2 -57.2 -114.4 -0.84| 19.5-16.4 1000 49 12 85 10| 0.0 8.2 8.2| 0.7 -72.6 -71.9 -71.9 -0.81| 16.4-13.3 1500 23 11 57 6| 0.0 5.8 5.8| 0.7 -82.9 -82.2 -54.8 -0.82| 13.9-11.3 2000 358 11 5 4| 0.9 4.4 5.3| 6.5 -83.2 -76.7 -38.3 -0.68| 11.4 -7.7 2500 348 11 339 4| 1.1 3.5 4.6| 10.1 -84.1 -74.0 -29.6 -0.60| 9.8 -5.9 3000 343 11 325 4| 0.9 2.8 3.7| 10.1 -86.0 -75.9 -25.3 -0.61| 8.4 -5.1 4000 339 10 306 3| 0.8 2.2 3.0| 12.8 -90.7 -77.9 -19.5 -0.55| 7.6 -4.2 5000 325 10 280 5| 0.8 2.4 3.2| 32.4 -92.7 -60.3 -12.1 -0.35| 7.6 -2.6 6000 323 9 276 5| 1.4 2.0 3.3| 34.8-100.6 -65.8 -11.0 -0.30| 8.0 -2.4 Wrote GIF file: /home/apache/climate/data/raob//SBCT/skewt/SBCT.skewt.20251225.00.gif