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 SBVT... Searching the city database file for: SBVT ... Date:1200Z 8 DEC 25 Station: SBVT WMO ident: 83649 Latitude: -20.26 Longitude: -40.29 Elevation: 4.00 ------------------------------------------------------------------------------- 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 1013 4 28.8 21.8 66 7.0 23.8 15 12 300.8 303.8 296.4 349.1 16.44 1 1001 112 26.0 21.0 74 5.0 22.5 15 17 299.1 301.9 295.6 345.2 15.83 2 1000 121 26.0 21.0 74 5.0 22.5 15 17 299.1 302.0 295.6 345.4 15.85 3 925 806 20.4 18.4 88 2.0 19.0 345 15 300.2 302.8 295.0 342.8 14.55 4 904 1004 18.6 17.9 96 0.7 18.1 340 14 300.3 302.9 294.9 342.5 14.42 5 850 1532 17.0 13.4 79 3.6 14.6 320 20 304.0 306.1 293.9 338.0 11.44 6 849 1542 17.0 13.4 79 3.6 14.6 320 20 304.1 306.2 293.9 338.2 11.46 7 767 2406 13.4 5.4 58 8.0 8.7 334 17 309.1 310.5 292.2 331.7 7.35 8 700 3169 7.0 5.2 88 1.8 5.9 330 15 310.2 311.7 293.0 334.7 7.95 9 668 3552 4.4 4.0 97 0.4 4.2 331 10 311.5 313.0 293.1 335.2 7.66 10 566 4885 -3.3 -7.0 76 3.7 -5.0 360 4 317.6 318.3 291.9 330.5 4.00 11 539 5271 -5.1 -22.1 25 17.0 -10.4 360 1 319.9 320.1 290.0 324.0 1.21 12 534 5344 -5.3 -13.3 53 8.0 -8.4 360 1 320.5 321.0 291.5 329.0 2.57 13 531 5389 -4.9 -8.7 75 3.8 -6.6 360 1 321.5 322.2 292.7 333.8 3.73 14 523 5508 -5.3 -12.3 58 7.0 -8.1 356 0 322.4 323.0 292.2 331.9 2.84 15 500 5860 -8.1 -8.9 94 0.8 -8.5 245 7 323.2 323.9 293.3 336.1 3.90 16 497 5907 -8.5 -9.2 95 0.7 -8.8 246 7 323.2 324.0 293.3 335.9 3.84 17 485 6096 -9.9 -12.0 85 2.1 -10.8 250 6 323.8 324.4 292.9 334.3 3.14 18 481 6160 -10.3 -18.3 52 8.0 -13.0 242 7 324.1 324.4 291.9 330.5 1.88 19 478 6208 -10.1 -37.1 9 27.0 -15.5 236 7 324.9 324.9 290.6 326.1 0.33 20 476 6240 -10.1 -39.1 7 29.0 -15.6 232 8 325.3 325.3 290.6 326.3 0.27 21 474 6273 -10.3 -28.3 21 18.0 -14.9 228 8 325.4 325.6 291.2 328.2 0.78 22 449 6689 -12.1 -43.1 6 31.0 -17.4 210 10 328.2 328.3 291.4 329.0 0.19 23 400 7560 -19.5 -26.5 54 7.0 -21.2 265 9 329.6 329.9 292.7 333.6 1.10 24 389 7767 -20.9 -24.8 71 3.9 -21.9 273 10 330.4 330.7 293.1 335.1 1.32 25 371 8116 -23.5 -31.5 48 8.0 -25.1 277 13 331.5 331.7 292.9 334.2 0.74 26 366 8215 -24.3 -30.3 58 6.0 -25.5 275 14 331.7 331.9 293.0 334.8 0.84 27 359 8356 -25.1 -28.3 75 3.2 -25.8 273 13 332.5 332.7 293.4 336.3 1.03 28 323 9117 -29.9 -31.4 87 1.5 -30.2 243 17 336.1 336.2 294.1 339.3 0.86 29 313 9341 -31.5 -33.8 80 2.3 -31.9 241 18 336.9 337.0 294.2 339.5 0.70 30 309 9432 -32.3 -33.9 86 1.6 -32.6 240 19 337.0 337.1 294.2 339.6 0.70 31 300 9640 -33.9 -36.4 78 2.5 -34.3 260 20 337.6 337.7 294.3 339.7 0.57 32 283 10046 -37.3 -39.5 80 2.2 -37.5 248 20 338.4 338.5 294.3 340.1 0.44 33 280 10120 -38.1 -43.1 59 5.0 -38.6 245 21 338.3 338.3 294.2 339.5 0.30 34 267 10446 -41.1 -48.1 47 7.0 -41.6 236 21 338.5 338.6 294.1 339.3 0.18 35 256 10731 -43.3 -47.5 63 4.2 -43.6 242 20 339.4 339.4 294.4 340.2 0.20 36 250 10890 -44.9 -49.3 61 4.4 -45.2 245 20 339.3 339.3 294.3 340.0 0.17 37 247 10970 -45.5 -50.2 59 4.7 -45.7 254 22 339.6 339.6 294.4 340.2 0.16 38 245 11024 -45.7 -54.7 36 9.0 -46.1 253 22 340.1 340.1 294.4 340.5 0.09 39 240 11161 -47.1 -53.1 50 6.0 -47.4 246 22 340.0 340.0 294.4 340.5 0.11 40 222 11670 -51.7 -59.7 38 8.0 -52.0 218 21 340.6 340.6 294.5 340.8 0.06 41 200 12340 -55.3 -73.3 9 18.0 -55.5 195 58 345.2 345.2 295.6 345.2 0.01 42 188 12733 -57.7 -74.8 10 17.1 -57.9 195 68 347.5 347.5 296.1 347.5 0.01 43 153 14010 -65.7 -79.7 13 14.0 -65.8 209 50 354.9 354.9 297.7 354.9 0.00 44 150 14130 -65.5 -80.5 11 15.0 -65.6 210 48 357.2 357.2 298.1 357.3 0.00 45 119 15522 -70.5 -86.5 8 16.0 -70.6 260 10 372.5 372.5 301.0 372.5 0.00 46 100 16550 -72.7 -88.7 7 16.0 -72.8 225 9 387.3 387.3 303.4 387.3 0.00 47 84 17557 -77.9 -89.9 13 12.0 -77.9 305 7 396.5 396.5 304.7 396.5 0.00 48 73 18358 -77.5 -91.5 9 14.0 -77.6 3 5 413.6 413.6 306.9 413.6 0.00 49 70 18600 -74.7 -89.7 8 15.0 -74.7 20 5 424.6 424.6 308.2 424.6 0.00 50 50 20580 -67.7 -90.7 2 23.0 -67.9 75 16 484.0 484.0 313.8 484.0 0.00 51 37 22424 -60.1 -90.1 1 30.0 -60.9 80 16 547.0 547.0 317.9 547.0 0.00 52 30 23740 -57.3 -89.3 1 32.0 -58.6 80 26 588.4 588.4 320.0 588.5 0.00 53 29 23954 -56.9 -88.9 1 32.0 -58.2 77 25 595.3 595.3 320.4 595.3 0.00 54 20 26320 -53.5 -86.5 1 33.0 -56.1 65 11 672.4 672.4 323.5 672.5 0.01 55 17 27368 -52.7 -86.7 1 34.0 -55.8 70 12 707.0 707.0 324.7 707.1 0.01 TRP 84 17557 -77.9 -89.9 13 12.0 -77.9 305 7 396.5 396.5 304.7 396.5 0.00 WND 188 12733 -57.7 -74.8 10 17.1 -57.9 195 68 347.5 347.5 296.1 347.5 0.01 Sounding variables and indices 1000-500 mb thick: 5739.00 m Freezing level: 609.71 mb = 4313.79 m = 14152.67 ft Wetbulb zero: 621.36 mb = 4134.48 m = 13564.40 ft Precipitable water: 1.94 inches Sfc-500 mean rel hum: 77.58 % Est. max temperature: 31.02 C = 87.84 F Sfc-Lift cond lev (LCL): 915.41 mb = 895.91 m = 2939.30 ft T: 19.58 C 700-500 lapse rate: 5.61 C/km ThetaE index: 7.33 C Layer 925.0- 849.0 mb Conv cond level (CCL): 906.38 mb = 981.38 m = 3219.70 ft Mean mixing ratio: 15.23 g/kg Conv temperature: 28.24 C = 82.83 F Cap Strength: 0.90 C Lifted Index: -3.02 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.34 C Lifted Index @700 mb: -1.98 C Showalter Index: -0.50 C Risk: Thunderstorms probable Total Totals Index: 46.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.10 C Cross Totals Index: 21.50 C K Index: 36.70 Risk: > 80 % chance of thunderstorms Sweat Index: 207.80 Risk: None Energy Index: -0.45 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 980.79 J/kg Max Up Vert Vel: 44.29 m/s Conv Inhibition (B-): 36.66 J/kg Cap Strength: 1.08 C Lift Cond Lev (LCL): 913.60 mb = 912.96 m = 2995.24 ft Lev Free Conv (LFC): 738.60 mb = 2720.78 m = 8926.34 ft Equ Level (EL): 198.60 mb = 12384.67 m = 40631.62 ft B at Equ Level: 967.78 J/kg Max Parcel Lev (MPL): 118.60 mb = 15542.32 m = 50991.24 ft Wind level data Storm motion: 8 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 1013 4 15 12 -3.1 -11.6 | 36 3 -1.9 -2.7 1 1000 121 15 17 -4.4 -16.4 | 23 8 -3.2 -7.5 2 979 305 10 19 -3.3 -18.7 | 12 10 -2.1 -9.8 3 946 610 350 17 3.0 -16.7 | 332 9 4.1 -7.8 4 925 806 345 15 3.9 -14.5 | 318 8 5.1 -5.6 5 913 914 340 12 4.1 -11.3 | 294 6 5.3 -2.4 6 882 1219 340 20 6.8 -18.8 | 321 13 8.0 -9.9 7 851 1524 320 20 12.9 -15.3 | 295 15 14.0 -6.4 8 850 1532 320 20 12.9 -15.3 | 295 15 14.0 -6.4 9 821 1829 325 21 12.0 -17.2 | 302 16 13.2 -8.3 10 791 2134 325 19 10.9 -15.6 | 299 14 12.1 -6.6 11 763 2438 335 17 7.2 -15.4 | 308 11 8.4 -6.5 12 736 2743 320 12 7.7 -9.2 | 272 9 8.9 -0.3 13 710 3048 330 15 7.5 -13.0 | 295 10 8.7 -4.1 14 700 3169 330 15 7.5 -13.0 | 295 10 8.7 -4.1 15 684 3353 340 11 3.8 -10.3 | 286 5 4.9 -1.4 16 659 3658 325 10 5.7 -8.2 | 264 7 6.9 0.7 17 634 3962 360 11 -0.0 -11.0 | 330 2 1.2 -2.1 18 610 4267 360 8 -0.0 -8.0 | 232 2 1.2 0.9 19 524 5486 0 0 -0.0 -0.0 | 188 9 1.2 8.9 20 500 5860 245 7 6.3 3.0 | 212 14 7.5 11.9 21 485 6096 250 6 5.6 2.1 | 212 13 6.8 11.0 22 466 6401 210 10 5.0 8.7 | 199 19 6.2 17.6 23 413 7315 210 10 5.0 8.7 | 199 19 6.2 17.6 24 400 7560 265 9 9.0 0.8 | 226 14 10.2 9.7 25 380 7925 280 11 10.8 -1.9 | 240 14 12.0 7.0 26 365 8230 275 14 13.9 -1.2 | 243 17 15.1 7.7 27 350 8534 270 11 11.0 -0.0 | 234 15 12.2 8.9 28 335 8839 245 16 14.5 6.8 | 225 22 15.7 15.7 29 308 9449 240 19 16.5 9.5 | 224 26 17.6 18.4 30 300 9640 260 20 19.7 3.5 | 239 24 20.9 12.4 31 295 9754 260 20 19.7 3.5 | 239 24 20.9 12.4 32 270 10363 235 21 17.2 12.0 | 221 28 18.4 21.0 33 250 10890 245 20 18.1 8.5 | 228 26 19.3 17.4 34 247 10973 255 22 21.3 5.7 | 237 27 22.4 14.6 35 225 11582 225 21 14.8 14.8 | 214 29 16.0 23.8 36 214 11887 200 20 6.8 18.8 | 196 29 8.0 27.7 37 200 12340 195 58 15.0 56.0 | 194 67 16.2 64.9 38 188 12733 195 68 17.6 65.7 | 194 77 18.8 74.6 39 186 12802 195 68 17.6 65.7 | 194 77 18.8 74.6 40 150 14130 210 48 24.0 41.6 | 207 56 25.2 50.5 41 145 14326 205 45 19.0 40.8 | 202 54 20.2 49.7 42 138 14630 200 50 17.1 47.0 | 198 59 18.3 55.9 43 125 15240 175 13 -1.1 13.0 | 180 22 0.1 21.9 44 118 15545 270 10 10.0 -0.0 | 231 14 11.2 8.9 45 112 15850 250 19 17.9 6.5 | 231 25 19.0 15.4 46 107 16154 290 12 11.3 -4.1 | 249 13 12.5 4.8 47 102 16459 285 13 12.6 -3.4 | 248 15 13.7 5.6 48 100 16550 225 9 6.4 6.4 | 206 17 7.6 15.3 49 96 16764 225 12 8.5 8.5 | 209 20 9.7 17.4 50 87 17374 270 11 11.0 -0.0 | 234 15 12.2 8.9 51 84 17557 305 7 5.7 -4.0 | 235 8 6.9 4.9 52 70 18600 20 5 -1.7 -4.7 | 173 4 -0.5 4.2 53 67 18898 25 1 -0.4 -0.9 | 185 8 0.8 8.0 54 60 19507 130 14 -10.7 9.0 | 152 20 -9.5 17.9 55 54 20117 80 16 -15.8 -2.8 | 113 16 -14.6 6.1 56 51 20422 85 23 -22.9 -2.0 | 108 23 -21.7 6.9 57 50 20580 75 16 -15.5 -4.1 | 109 15 -14.3 4.8 58 46 21031 75 16 -15.5 -4.1 | 109 15 -14.3 4.8 59 44 21336 65 12 -10.9 -5.1 | 112 10 -9.7 3.8 60 40 21946 60 20 -17.3 -10.0 | 86 16 -16.1 -1.1 61 36 22555 85 15 -14.9 -1.3 | 119 16 -13.8 7.6 62 33 23165 75 25 -24.1 -6.5 | 96 23 -23.0 2.4 63 30 23740 80 26 -25.6 -4.5 | 100 25 -24.4 4.4 64 27 24384 70 24 -22.6 -8.2 | 92 21 -21.4 0.7 65 26 24689 105 19 -18.4 4.9 | 129 22 -17.2 13.8 66 25 24994 105 24 -23.2 6.2 | 125 27 -22.0 15.1 67 23 25298 75 28 -27.0 -7.2 | 94 26 -25.9 1.7 68 22 25603 80 23 -22.7 -4.0 | 103 22 -21.5 4.9 69 21 25908 55 21 -17.2 -12.0 | 79 16 -16.0 -3.1 70 20 26213 70 18 -16.9 -6.2 | 100 16 -15.7 2.8 71 20 26320 65 11 -10.0 -4.6 | 116 10 -8.8 4.3 72 19 26518 50 13 -10.0 -8.4 | 94 9 -8.8 0.6 73 18 26822 65 11 -10.0 -4.6 | 116 10 -8.8 4.3 74 15 27432 90 18 -18.0 0.0 | 118 19 -16.8 8.9 Wind Parameters Mean winds (0-6000m): 337.6 at 12.0 knts Storm direction: 7.6 at 9.0 knts Shear (0-3000m) pos: 0.9 neg: 2.7 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): -103.9 deg Storm rel helicity (0-3000m) pos: 25.2 neg: -66.8 tot: -41.6 m^2/s^2 ave: -13.9 10^-3 m/s^2 rel: -0.34 Storm rel vorticity (0-3000m) horiz: 8.3 stream: -2.8 10^-3/s Energy-Hel index: 0.08 Bulk Rich Number: 82.08 Bulk Shear: 11.95 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 9 17 11 8| 0.0 7.5 7.5| 0.0 -16.1 -16.1 -32.3 -0.61| 12.2 -7.4 1000 359 16 348 8| 0.0 4.2 4.2| 2.1 -29.9 -27.8 -27.8 -0.59| 11.1 -6.5 1500 350 17 332 9| 0.0 5.5 5.5| 7.9 -51.4 -43.5 -29.0 -0.49| 11.4 -5.6 2000 342 18 320 11| 0.3 4.1 4.5| 13.8 -52.5 -38.7 -19.3 -0.42| 9.3 -3.9 2500 339 18 316 11| 1.1 3.3 4.4| 19.2 -56.8 -37.7 -15.1 -0.36| 8.6 -3.1 3000 337 17 312 11| 0.9 2.7 3.6| 25.2 -66.8 -41.6 -13.9 -0.34| 8.3 -2.8 4000 337 16 308 9| 1.7 2.0 3.7| 30.7 -71.8 -41.0 -10.3 -0.25| 7.9 -1.9 5000 339 14 304 7| 1.3 1.7 3.0| 30.7 -74.1 -43.4 -8.7 -0.28| 7.1 -2.0 6000 338 12 291 6| 1.1 2.1 3.2| 39.6 -77.9 -38.3 -6.4 -0.20| 7.0 -1.4 Wrote GIF file: /home/apache/climate/data/raob//SBVT/skewt/SBVT.skewt.20251208.12.gif