UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122900.upa.cvt Date: 0000Z 29 DEC 25 Searching for SBCT... Searching the city database file for: SBCT ... Date:0000Z 29 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 84 1 925 779 SFC 911 908 24.6 22.1 86 2.5 22.8 120 5 305.8 309.3 299.1 361.9 18.69 3 890 1114 22.2 20.9 92 1.3 21.3 79 8 305.4 308.7 298.4 358.5 17.75 4 875 1263 21.6 18.8 84 2.8 19.6 64 11 306.2 309.2 297.4 353.7 15.80 5 872 1293 22.4 16.4 69 6.0 18.2 63 11 307.4 309.9 296.3 348.3 13.58 6 850 1517 22.0 15.0 64 7.0 17.2 55 16 309.2 311.6 296.1 347.8 12.72 7 769 2382 16.6 12.6 77 4.0 13.9 325 5 312.4 314.6 296.5 349.3 12.01 8 700 3177 9.8 9.0 95 0.8 9.3 275 10 313.3 315.3 295.6 345.4 10.36 9 681 3404 7.8 7.8 100 0.0 7.8 263 12 313.6 315.5 295.3 344.0 9.81 10 664 3612 6.6 5.5 93 1.1 5.9 253 14 314.5 316.1 294.6 341.3 8.57 11 639 3927 7.6 -10.4 27 18.0 -0.4 280 11 319.1 319.6 291.2 328.1 2.71 12 615 4241 5.0 -10.0 33 15.0 -1.7 285 13 319.6 320.2 291.5 329.2 2.91 13 607 4348 3.8 1.0 82 2.8 2.2 286 13 319.5 320.8 294.6 341.2 6.80 14 595 4509 2.6 0.1 84 2.5 1.2 289 13 319.9 321.2 294.5 340.7 6.49 15 576 4772 2.4 -1.9 73 4.3 0.1 293 13 322.6 323.8 294.7 341.5 5.79 16 500 5900 -4.5 -9.4 69 4.9 -6.7 290 14 327.6 328.3 294.4 340.2 3.75 17 497 5948 -4.9 -9.9 68 5.0 -7.1 291 14 327.6 328.4 294.3 339.9 3.63 18 478 6254 -7.3 -9.3 86 2.0 -8.2 287 14 328.3 329.1 294.7 341.7 3.96 19 475 6303 -6.5 -11.5 68 5.0 -8.7 285 14 329.9 330.6 294.6 341.3 3.34 20 446 6794 -9.7 -13.1 76 3.4 -11.1 309 11 331.9 332.5 295.0 342.7 3.13 21 413 7386 -13.1 -16.5 76 3.4 -14.3 323 14 334.9 335.4 295.3 343.8 2.55 22 400 7630 -14.9 -21.9 55 7.0 -17.1 330 14 335.6 336.0 294.7 341.6 1.66 23 395 7725 -15.7 -23.7 50 8.0 -18.0 327 14 335.8 336.1 294.6 341.0 1.43 24 391 7802 -15.9 -19.9 71 4.0 -17.2 324 13 336.5 336.9 295.2 343.7 2.02 25 376 8096 -17.5 -20.4 78 2.9 -18.4 325 13 338.2 338.6 295.6 345.4 2.01 26 300 9750 -28.5 -33.2 64 4.7 -29.4 355 15 345.2 345.4 296.3 348.2 0.78 27 298 9798 -28.9 -33.8 63 4.9 -29.8 358 15 345.3 345.5 296.2 348.2 0.74 28 263 10680 -36.5 -39.8 71 3.3 -36.9 343 18 346.7 346.8 296.3 348.5 0.46 29 250 11030 -39.1 -43.2 65 4.1 -39.5 340 20 347.9 348.0 296.5 349.3 0.34 30 235 11448 -42.9 -46.4 68 3.5 -43.2 333 21 348.4 348.5 296.5 349.4 0.25 31 200 12510 -51.3 -57.3 49 6.0 -51.5 335 29 351.5 351.5 297.0 351.9 0.08 32 186 12979 -54.7 -61.7 42 7.0 -54.9 330 33 353.4 353.4 297.4 353.6 0.05 33 155 14120 -65.3 -68.6 63 3.3 -65.3 313 29 354.3 354.3 297.5 354.4 0.02 34 150 14320 -66.5 -71.0 53 4.5 -66.5 310 27 355.5 355.5 297.8 355.6 0.02 35 141 14692 -69.7 -72.6 66 2.9 -69.7 306 24 356.3 356.3 298.0 356.3 0.01 36 119 15687 -76.1 -80.9 47 4.8 -76.1 297 17 362.2 362.2 299.1 362.2 0.00 37 100 16680 -80.5 -85.1 46 4.6 -80.5 10 3 372.2 372.2 300.9 372.2 0.00 38 98 16794 -80.7 -85.2 47 4.5 -80.7 345 4 374.0 374.0 301.2 374.0 0.00 39 74 18384 -77.7 -87.7 18 10.0 -77.7 248 15 411.6 411.6 306.7 411.6 0.00 40 70 18700 -79.7 -88.7 21 9.0 -79.7 155 23 413.9 413.9 307.0 413.9 0.00 41 64 19208 -80.1 -89.1 21 9.0 -80.1 146 21 423.7 423.7 308.2 423.8 0.00 42 60 19579 -74.7 -87.7 12 13.0 -74.7 164 17 443.7 443.7 310.3 443.7 0.00 43 53 20305 -72.7 -89.7 6 17.0 -72.8 145 19 464.4 464.4 312.1 464.4 0.00 44 50 20650 -69.5 -89.5 4 20.0 -69.6 110 21 479.7 479.7 313.4 479.7 0.00 45 47 21019 -68.1 -90.1 3 22.0 -68.3 110 23 491.6 491.6 314.4 491.6 0.00 46 46 21149 -63.7 -88.7 2 25.0 -64.1 93 23 505.3 505.3 315.3 505.3 0.00 47 40 22000 -66.1 -89.1 3 23.0 -66.4 43 17 519.9 519.9 316.3 519.9 0.00 48 34 23003 -57.9 -86.9 1 29.0 -58.9 89 10 566.2 566.2 319.0 566.2 0.01 49 31 23584 -57.7 -86.7 1 29.0 -58.9 64 11 581.9 581.9 319.8 581.9 0.01 50 30 23790 -59.5 -87.5 1 28.0 -60.4 105 18 582.4 582.4 319.8 582.5 0.01 51 29 24003 -59.7 -87.7 1 28.0 -60.7 109 19 587.6 587.6 320.0 587.6 0.01 52 20 26360 -54.3 -85.3 1 31.0 -56.6 130 31 670.0 670.0 323.4 670.1 0.01 53 16 27806 -49.5 -83.5 1 34.0 -53.7 111 35 729.8 729.8 325.4 730.0 0.02 54 14 28668 -55.9 -85.9 1 30.0 -58.6 92 28 736.5 736.5 325.6 736.6 0.02 55 13 29147 -49.3 -83.3 1 34.0 -54.2 65 23 775.1 775.1 326.6 775.4 0.03 56 12 29673 -48.7 -82.7 1 34.0 -54.1 74 20 795.2 795.2 327.1 795.5 0.04 57 11 30242 -50.5 -83.5 1 33.0 -55.5 86 21 808.7 808.7 327.4 809.0 0.03 TRP 98 16794 -80.7 -85.2 47 4.5 -80.7 345 4 374.0 374.0 301.2 374.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5816.00 m Freezing level: 549.57 mb = 5164.04 m = 16942.17 ft Wetbulb zero: 640.54 mb = 3907.66 m = 12820.26 ft Precipitable water: 1.74 inches Sfc-500 mean rel hum: 73.75 % Est. max temperature: 31.10 C = 87.98 F Sfc-Lift cond lev (LCL): 878.72 mb = 1225.42 m = 4020.36 ft T: 21.75 C 700-500 lapse rate: 5.25 C/km ThetaE index: 21.26 C Layer 700.0- 615.0 mb Conv cond level (CCL): 753.64 mb = 2552.83 m = 8375.32 ft Mean mixing ratio: 14.50 g/kg Conv temperature: 31.20 C = 88.17 F Cap Strength: 2.80 C Lifted Index: -2.23 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.13 C Lifted Index @700 mb: -1.29 C Showalter Index: -0.77 C Risk: Thunderstorms probable Total Totals Index: 46.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.50 C Cross Totals Index: 19.50 C K Index: 40.70 Risk: > 80 % chance of thunderstorms Sweat Index: 226.00 Risk: None Energy Index: -1.51 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 610.07 J/kg Max Up Vert Vel: 34.93 m/s Conv Inhibition (B-): 80.91 J/kg Cap Strength: 2.80 C Lift Cond Lev (LCL): 803.40 mb = 2004.13 m = 6575.14 ft Lev Free Conv (LFC): 718.40 mb = 2957.64 m = 9703.41 ft Equ Level (EL): 198.40 mb = 12561.92 m = 41213.13 ft B at Equ Level: 604.78 J/kg Max Parcel Lev (MPL): 108.40 mb = 16219.52 m = 53213.01 ft Wind level data Storm motion: 332 at 9 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 ---------------------------------------------------------- 0 911 908 120 5 -4.3 2.5 | 140 13 -8.5 10.2 1 910 914 105 3 -2.9 0.8 | 140 11 -7.1 8.5 2 879 1219 65 10 -9.1 -4.2 | 105 14 -13.3 3.5 3 850 1517 55 16 -13.1 -9.2 | 85 17 -17.3 -1.5 4 849 1524 65 19 -17.2 -8.0 | 89 21 -21.4 -0.3 5 820 1829 360 12 -0.0 -12.0 | 44 6 -4.2 -4.3 6 791 2134 345 10 2.6 -9.7 | 40 3 -1.6 -1.9 7 763 2438 320 4 2.6 -3.1 | 161 5 -1.6 4.7 8 700 3177 275 10 10.0 -0.9 | 220 9 5.8 6.8 9 660 3658 250 14 13.2 4.8 | 216 15 9.0 12.5 10 635 3962 285 11 10.6 -2.8 | 233 8 6.4 4.9 11 612 4267 285 13 12.6 -3.4 | 243 9 8.4 4.4 12 526 5486 305 14 11.5 -8.0 | 272 7 7.3 -0.3 13 500 5900 290 14 13.2 -4.8 | 252 9 9.0 2.9 14 488 6096 295 14 12.7 -5.9 | 258 9 8.5 1.8 15 469 6401 280 14 13.8 -2.4 | 241 11 9.6 5.3 16 451 6706 310 10 7.7 -6.4 | 250 4 3.5 1.3 17 433 7010 305 15 12.3 -8.6 | 276 8 8.1 -0.9 18 401 7620 335 14 5.9 -12.7 | 341 5 1.7 -5.0 19 400 7630 330 14 7.0 -12.1 | 327 5 2.8 -4.4 20 384 7925 320 13 8.4 -10.0 | 298 5 4.2 -2.2 21 369 8230 330 13 6.5 -11.3 | 327 4 2.3 -3.5 22 354 8534 335 13 5.5 -11.8 | 342 4 1.3 -4.1 23 339 8839 315 20 14.1 -14.1 | 303 12 10.0 -6.4 24 313 9449 350 14 2.4 -13.8 | 16 6 -1.8 -6.1 25 300 9750 355 15 1.3 -14.9 | 22 8 -2.9 -7.2 26 300 9754 360 15 -0.0 -15.0 | 30 8 -4.2 -7.3 27 275 10363 335 19 8.0 -17.2 | 338 10 3.8 -9.5 28 252 10973 350 18 3.1 -17.7 | 6 10 -1.1 -10.0 29 250 11030 340 20 6.8 -18.8 | 347 11 2.7 -11.1 30 230 11582 330 21 10.5 -18.2 | 329 12 6.3 -10.5 31 200 12510 335 29 12.3 -26.3 | 337 20 8.1 -18.6 32 173 13411 325 37 21.2 -30.3 | 323 28 17.0 -22.6 33 150 14320 310 27 20.7 -17.4 | 300 19 16.5 -9.6 34 115 15850 295 16 14.5 -6.8 | 265 10 10.3 1.0 35 109 16154 240 17 14.7 8.5 | 213 19 10.5 16.2 36 100 16680 10 3 -0.5 -3.0 | 135 7 -4.7 4.8 37 99 16764 235 12 9.8 6.9 | 201 16 5.6 14.6 38 98 16794 345 4 1.0 -3.9 | 141 5 -3.2 3.9 39 93 17069 10 3 -0.5 -3.0 | 135 7 -4.7 4.8 40 84 17678 195 10 2.6 9.7 | 175 17 -1.6 17.4 41 79 17983 300 10 8.7 -5.0 | 239 5 4.5 2.7 42 75 18288 285 15 14.5 -3.9 | 250 11 10.3 3.8 43 71 18593 170 16 -2.8 15.8 | 163 24 -7.0 23.5 44 70 18700 155 23 -9.7 20.8 | 154 32 -13.9 28.6 45 68 18898 165 23 -6.0 22.2 | 161 32 -10.1 29.9 46 64 19202 145 21 -12.0 17.2 | 147 30 -16.2 24.9 47 61 19507 160 17 -5.8 16.0 | 157 26 -10.0 23.7 48 58 19812 175 16 -1.4 15.9 | 167 24 -5.6 23.7 49 55 20117 155 25 -10.6 22.7 | 154 34 -14.8 30.4 50 52 20422 140 15 -9.6 11.5 | 144 24 -13.8 19.2 51 50 20650 110 21 -19.7 7.2 | 122 28 -23.9 14.9 52 49 20726 140 20 -12.9 15.3 | 144 29 -17.0 23.0 53 47 21031 110 23 -21.6 7.9 | 121 30 -25.8 15.6 54 45 21336 70 23 -21.6 -7.9 | 90 26 -25.8 -0.1 55 40 21946 30 18 -9.0 -15.6 | 59 15 -13.2 -7.9 56 37 22555 135 10 -7.1 7.1 | 143 19 -11.3 14.8 57 33 23165 75 10 -9.7 -2.6 | 110 15 -13.8 5.1 58 32 23470 25 12 -5.1 -10.9 | 71 10 -9.3 -3.2 59 30 23774 125 10 -8.2 5.7 | 137 18 -12.4 13.5 60 30 23790 105 18 -17.4 4.7 | 120 25 -21.6 12.4 61 29 24079 110 20 -18.8 6.8 | 122 27 -23.0 14.6 62 26 24689 105 15 -14.5 3.9 | 122 22 -18.7 11.6 63 25 24994 80 11 -10.8 -1.9 | 111 16 -15.0 5.8 64 24 25298 125 10 -8.2 5.7 | 137 18 -12.4 13.5 65 23 25603 140 12 -7.7 9.2 | 145 21 -11.9 16.9 66 21 25908 90 16 -16.0 0.0 | 111 22 -20.2 7.7 67 20 26213 135 22 -15.6 15.6 | 140 31 -19.7 23.3 68 20 26360 130 31 -23.7 19.9 | 135 39 -27.9 27.6 69 19 26518 135 33 -23.3 23.3 | 138 41 -27.5 31.1 70 16 27127 110 35 -32.9 12.0 | 118 42 -37.1 19.7 71 15 27432 115 33 -29.9 13.9 | 122 40 -34.1 21.7 72 13 28042 55 21 -17.2 -12.0 | 79 22 -21.4 -4.3 73 12 28346 85 19 -18.9 -1.7 | 105 24 -23.1 6.1 74 9 29261 90 27 -27.0 0.0 | 104 32 -31.2 7.7 75 8 29566 105 33 -31.9 8.5 | 114 40 -36.1 16.3 Wind Parameters Mean winds (0-6000m): 301.5 at 11.7 knts Storm direction: 331.5 at 8.8 knts Shear (0-3000m) pos: 0.6 neg: 2.8 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 90.2 deg Storm rel helicity (0-3000m) pos: 17.9 neg: -84.0 tot: -66.2 m^2/s^2 ave: -22.1 10^-3 m/s^2 rel: -0.19 Storm rel vorticity (0-3000m) horiz: 10.3 stream: -2.0 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 14.15 Bulk Shear: 43.13 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 67 8 110 13| 0.0 12.6 12.6| 0.0 -40.6 -40.6 -81.3 -0.91| 12.8-11.7 1000 50 12 91 13| 0.0 7.6 7.6| 0.0 -80.8 -80.8 -80.8 -0.72| 16.1-11.6 1500 32 11 82 10| 0.0 3.2 3.2| 1.5 -81.0 -79.5 -53.0 -0.47| 13.8 -6.4 2000 19 10 80 7| 0.0 3.3 3.3| 6.5 -81.0 -74.5 -37.3 -0.33| 11.6 -3.8 2500 357 10 63 4| 0.0 3.3 3.3| 8.3 -81.4 -73.1 -29.3 -0.27| 10.6 -2.8 3000 327 10 298 2| 0.6 2.8 3.3| 17.9 -84.0 -66.2 -22.1 -0.19| 10.3 -2.0 4000 307 11 255 5| 0.9 2.1 3.0| 27.3 -84.0 -56.7 -14.2 -0.12| 8.5 -1.0 5000 304 11 256 5| 0.9 1.8 2.8| 31.3 -90.2 -58.8 -11.8 -0.12| 7.3 -0.9 6000 302 12 255 6| 1.3 1.6 2.9| 38.5 -97.1 -58.6 -9.8 -0.08| 7.4 -0.6 Wrote GIF file: /home/apache/climate/data/raob//SBCT/skewt/SBCT.skewt.20251229.00.gif