UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for SBCT... Searching the city database file for: SBCT ... Date:1200Z 9 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 38 1 925 721 SFC 905 908 19.0 18.7 98 0.3 18.8 60 8 300.6 303.4 295.6 345.1 15.17 3 872 1228 16.4 16.4 100 0.0 16.4 18 17 301.1 303.6 294.6 341.0 13.58 4 850 1446 15.6 15.6 100 0.0 15.6 10 22 302.5 304.9 294.7 341.6 13.23 5 821 1741 14.8 14.3 97 0.5 14.5 358 24 304.7 307.0 294.8 342.2 12.58 6 775 2228 12.2 11.2 94 1.0 11.6 352 22 306.9 309.0 294.2 339.7 10.85 7 700 3076 7.8 7.8 100 0.0 7.8 325 23 311.1 312.9 294.4 340.4 9.54 8 500 5790 -5.5 -5.7 98 0.2 -5.6 315 42 326.3 327.3 295.0 342.9 5.01 9 498 5821 -5.3 -5.7 97 0.4 -5.5 315 44 327.0 328.0 295.2 343.7 5.03 10 425 7050 -12.3 -13.2 93 0.9 -12.7 295 28 333.2 333.8 295.4 344.4 3.26 11 406 7398 -14.7 -17.3 81 2.6 -15.6 299 26 334.5 334.9 295.0 343.0 2.43 12 400 7510 -16.7 -22.7 60 6.0 -18.4 300 25 333.3 333.6 294.0 338.8 1.54 13 394 7624 -17.9 -24.9 54 7.0 -19.8 302 25 333.2 333.4 293.8 337.8 1.29 14 391 7681 -18.3 -26.3 49 8.0 -20.3 302 25 333.4 333.6 293.7 337.5 1.14 15 382 7855 -18.5 -21.9 75 3.4 -19.5 305 25 335.3 335.7 294.7 341.5 1.73 16 379 7914 -18.1 -19.5 89 1.4 -18.6 305 25 336.6 337.1 295.3 344.3 2.15 17 364 8215 -20.1 -20.7 95 0.6 -20.3 310 25 337.9 338.3 295.6 345.1 2.02 18 346 8590 -22.5 -24.4 84 1.9 -23.0 309 29 339.5 339.9 295.6 345.1 1.53 19 341 8697 -24.3 -30.3 58 6.0 -25.6 308 30 338.5 338.7 294.8 341.9 0.90 20 338 8761 -25.7 -55.7 4 30.0 -28.4 308 31 337.5 337.5 293.7 337.7 0.06 21 337 8783 -25.9 -59.9 3 34.0 -28.6 308 31 337.5 337.5 293.7 337.6 0.04 22 323 9089 -27.5 -55.5 5 28.0 -29.9 307 35 339.4 339.4 294.2 339.6 0.06 23 321 9134 -26.7 -31.7 63 5.0 -27.7 306 35 341.1 341.3 295.3 344.3 0.84 24 320 9157 -26.7 -31.7 63 5.0 -27.7 306 36 341.4 341.6 295.4 344.6 0.84 25 312 9340 -27.9 -31.0 75 3.1 -28.5 305 38 342.2 342.4 295.7 345.7 0.92 26 300 9620 -31.1 -46.1 21 15.0 -32.7 305 37 341.5 341.6 294.9 342.4 0.20 27 295 9739 -32.1 -60.1 4 28.0 -34.0 305 37 341.8 341.8 294.8 341.9 0.04 28 292 9810 -32.7 -46.7 23 14.0 -34.1 304 38 341.9 342.0 295.0 342.7 0.20 29 288 9907 -33.5 -64.5 3 31.0 -35.2 304 38 342.1 342.1 294.8 342.2 0.02 30 254 10772 -40.9 -64.9 6 24.0 -41.8 300 42 343.7 343.7 295.2 343.8 0.02 31 252 10826 -41.1 -61.1 10 20.0 -42.0 300 42 344.2 344.2 295.4 344.3 0.04 32 251 10853 -41.3 -49.3 42 8.0 -41.9 300 42 344.3 344.3 295.5 345.0 0.17 33 250 10880 -41.7 -53.7 26 12.0 -42.4 300 42 344.1 344.1 295.4 344.5 0.10 34 246 10989 -42.7 -47.1 62 4.4 -43.0 299 42 344.2 344.2 295.5 345.1 0.22 35 241 11128 -43.9 -47.7 66 3.8 -44.2 297 43 344.4 344.4 295.6 345.3 0.21 36 234 11326 -44.5 -48.2 66 3.7 -44.7 298 43 346.4 346.4 296.0 347.2 0.21 37 221 11707 -47.7 -53.7 50 6.0 -48.0 314 41 347.2 347.2 296.1 347.7 0.12 38 200 12360 -53.5 -57.4 62 3.9 -53.6 300 47 348.0 348.1 296.3 348.4 0.08 39 188 12754 -57.3 -59.2 79 1.9 -57.3 299 53 348.1 348.1 296.3 348.4 0.07 40 177 13132 -60.3 -62.1 79 1.8 -60.3 298 59 349.3 349.3 296.5 349.5 0.05 41 163 13639 -64.9 -68.9 58 4.0 -65.0 296 67 349.9 349.9 296.6 350.0 0.02 42 150 14140 -69.5 -71.0 81 1.5 -69.5 290 76 350.4 350.4 296.7 350.4 0.02 43 147 14260 -70.7 -72.0 83 1.3 -70.7 289 76 350.3 350.3 296.7 350.4 0.02 44 140 14547 -73.5 -75.3 76 1.8 -73.5 286 77 350.3 350.3 296.7 350.4 0.01 45 129 15022 -75.9 -78.7 64 2.8 -75.9 281 79 354.3 354.3 297.5 354.3 0.01 46 126 15158 -74.9 -79.7 47 4.7 -74.9 280 79 358.5 358.5 298.4 358.5 0.01 47 110 15957 -69.3 -85.3 8 16.0 -69.4 245 36 383.2 383.2 302.8 383.3 0.00 48 100 16520 -73.1 -86.1 12 13.0 -73.2 240 30 386.5 386.5 303.3 386.5 0.00 49 97 16699 -69.9 -85.9 8 16.0 -70.0 240 30 396.1 396.1 304.7 396.1 0.00 50 70 18620 -73.3 -88.3 8 15.0 -73.3 180 8 427.6 427.6 308.6 427.6 0.00 51 66 18963 -73.5 -88.5 8 15.0 -73.6 153 8 434.4 434.4 309.3 434.4 0.00 52 63 19236 -70.7 -86.7 8 16.0 -70.8 63 2 446.4 446.4 310.5 446.4 0.00 53 56 19930 -71.9 -88.9 6 17.0 -72.0 180 12 458.9 458.9 311.7 459.0 0.00 54 50 20600 -69.9 -88.9 5 19.0 -70.1 135 5 478.8 478.8 313.4 478.8 0.00 55 39 22105 -64.3 -88.3 2 24.0 -64.7 38 10 528.2 528.2 316.8 528.2 0.00 56 35 22777 -59.1 -86.1 2 27.0 -60.0 84 10 558.4 558.4 318.6 558.4 0.01 57 30 23750 -57.5 -85.5 2 28.0 -58.7 115 8 587.9 587.9 320.0 587.9 0.01 58 26 24660 -55.3 -84.3 2 29.0 -57.1 83 10 618.7 618.7 321.5 618.8 0.01 59 20 26350 -51.5 -82.5 1 31.0 -54.5 100 16 678.5 678.5 323.7 678.7 0.02 60 18 27033 -52.3 -82.3 2 30.0 -55.4 88 15 696.8 696.8 324.3 697.0 0.03 TRP 126 15158 -76.3 -80.9 48 4.6 -76.3 275 78 356.0 356.0 297.9 356.0 0.00 WND 126 15158 -74.9 -79.7 47 4.7 -74.9 280 79 358.5 358.5 298.4 358.5 0.01 Sounding variables and indices 1000-500 mb thick: 5752.00 m Freezing level: 582.71 mb = 4667.67 m = 15313.69 ft Wetbulb zero: 583.55 mb = 4543.65 m = 14906.79 ft Precipitable water: 1.74 inches Sfc-500 mean rel hum: 98.41 % Est. max temperature: 26.19 C = 79.14 F Sfc-Lift cond lev (LCL): 901.27 mb = 943.48 m = 3095.37 ft T: 18.71 C 700-500 lapse rate: 4.90 C/km ThetaE index: 4.07 C Layer 872.0- 850.0 mb Conv cond level (CCL): 859.62 mb = 1349.73 m = 4428.20 ft Mean mixing ratio: 13.37 g/kg Conv temperature: 20.24 C = 68.43 F Cap Strength: 0.34 C Lifted Index: 0.40 C Risk: Showers probable Lifted Index @300 mb: 1.69 C Lifted Index @700 mb: -0.54 C Showalter Index: 0.63 C Risk: Thunderstorms probable Total Totals Index: 42.20 C Risk: None Vertical Totals Index: 21.10 C Cross Totals Index: 21.10 C K Index: 36.70 Risk: > 80 % chance of thunderstorms Sweat Index: 273.20 Risk: None Energy Index: 0.14 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 60.46 J/kg Max Up Vert Vel: 11.00 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 0.40 C Lift Cond Lev (LCL): 851.45 mb = 1431.43 m = 4696.25 ft Lev Free Conv (LFC): 846.45 mb = 1481.55 m = 4860.67 ft Equ Level (EL): 836.45 mb = 1582.49 m = 5191.85 ft B at Equ Level: 23.34 J/kg Max Parcel Lev (MPL): 416.45 mb = 7204.28 m = 23635.79 ft Wind level data Storm motion: 354 at 21 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 ---------------------------------------------------------- 0 905 908 60 8 -6.9 -4.0 | 152 19 -9.0 16.7 1 904 914 30 10 -5.0 -8.7 | 149 14 -7.1 12.0 2 850 1446 10 22 -3.8 -21.7 | 80 6 -5.9 -1.0 3 842 1524 360 25 -0.0 -25.0 | 26 5 -2.1 -4.3 4 783 2134 355 22 1.9 -21.9 | 7 1 -0.2 -1.3 5 755 2438 345 21 5.4 -20.3 | 264 3 3.4 0.4 6 728 2743 345 23 6.0 -22.2 | 292 4 3.9 -1.6 7 700 3076 325 23 13.2 -18.8 | 261 11 11.1 1.8 8 676 3353 340 28 9.6 -26.3 | 307 9 7.5 -5.6 9 604 4267 315 30 21.2 -21.2 | 272 19 19.1 -0.6 10 582 4572 305 26 21.3 -14.9 | 253 20 19.2 5.8 11 500 5790 315 42 29.7 -29.7 | 288 29 27.6 -9.0 12 500 5791 315 45 31.8 -31.8 | 291 32 29.7 -11.2 13 481 6096 310 35 26.8 -22.5 | 274 25 24.7 -1.8 14 462 6401 300 28 24.2 -14.0 | 253 23 22.2 6.7 15 427 7010 295 28 25.4 -11.8 | 249 25 23.3 8.8 16 400 7510 300 25 21.7 -12.5 | 247 21 19.6 8.2 17 363 8230 310 25 19.2 -16.1 | 255 18 17.1 4.6 18 307 9449 305 39 31.9 -22.4 | 273 30 29.9 -1.7 19 300 9620 305 37 30.3 -21.2 | 271 28 28.2 -0.6 20 250 10880 300 42 36.4 -21.0 | 271 34 34.3 -0.3 21 235 11278 295 43 39.0 -18.2 | 266 37 36.9 2.5 22 225 11582 315 40 28.3 -28.3 | 286 27 26.2 -7.6 23 205 12192 310 44 33.7 -28.3 | 284 33 31.6 -7.6 24 200 12360 300 47 40.7 -23.5 | 274 39 38.6 -2.8 25 153 14021 295 73 66.2 -30.9 | 279 65 64.1 -10.2 26 150 14140 290 76 71.4 -26.0 | 274 70 69.3 -5.3 27 126 15158 280 79 77.8 -13.7 | 265 76 75.7 6.9 28 124 15240 280 79 77.8 -13.7 | 265 76 75.7 6.9 29 106 16154 235 24 19.7 13.8 | 207 39 17.6 34.4 30 101 16459 240 17 14.7 8.5 | 203 32 12.6 29.2 31 100 16520 240 30 26.0 15.0 | 214 43 23.9 35.7 32 96 16764 240 30 26.0 15.0 | 214 43 23.9 35.7 33 91 17069 250 20 18.8 6.8 | 211 32 16.7 27.5 34 87 17374 230 17 13.0 10.9 | 199 33 10.9 31.6 35 78 17983 250 13 12.2 4.4 | 202 27 10.1 25.1 36 74 18288 245 14 12.7 5.9 | 202 29 10.6 26.6 37 70 18593 195 10 2.6 9.7 | 181 30 0.5 30.3 38 70 18620 180 8 0.0 8.0 | 176 29 -2.1 28.7 39 67 18898 185 10 0.9 10.0 | 178 31 -1.2 30.6 40 63 19202 45 1 -0.7 -0.7 | 172 20 -2.8 20.0 41 60 19507 190 10 1.7 9.8 | 179 31 -0.3 30.5 42 57 19812 180 14 0.0 14.0 | 177 35 -2.1 34.7 43 54 20117 180 10 0.0 10.0 | 176 31 -2.1 30.7 44 52 20422 160 11 -3.8 10.3 | 169 32 -5.8 31.0 45 50 20600 135 5 -3.5 3.5 | 167 25 -5.6 24.2 46 49 20726 150 10 -5.0 8.7 | 166 30 -7.1 29.3 47 42 21641 165 11 -2.8 10.6 | 171 32 -4.9 31.3 48 40 21946 50 11 -8.4 -7.1 | 142 17 -10.5 13.6 49 38 22250 30 10 -5.0 -8.7 | 149 14 -7.1 12.0 50 35 22860 90 10 -10.0 0.0 | 150 24 -12.1 20.7 51 33 23165 290 1 0.9 -0.3 | 177 20 -1.1 20.3 52 30 23750 115 8 -7.3 3.4 | 159 26 -9.3 24.0 53 27 24384 55 10 -8.2 -5.7 | 145 18 -10.3 14.9 54 26 24689 85 10 -10.0 -0.9 | 149 23 -12.0 19.8 55 25 24994 35 10 -5.7 -8.2 | 148 15 -7.8 12.5 56 24 25298 100 10 -9.8 1.7 | 152 25 -11.9 22.4 57 21 25908 95 12 -12.0 1.0 | 147 26 -14.0 21.7 58 20 26213 55 11 -9.0 -6.3 | 142 18 -11.1 14.4 59 20 26350 100 16 -15.8 2.8 | 143 29 -17.8 23.4 60 19 26518 85 10 -10.0 -0.9 | 149 23 -12.0 19.8 61 17 26822 90 18 -18.0 0.0 | 136 29 -20.1 20.7 62 16 27127 70 15 -14.1 -5.1 | 134 22 -16.2 15.5 63 15 27432 95 16 -15.9 1.4 | 141 28 -18.0 22.1 Wind Parameters Mean winds (0-6000m): 324.3 at 27.7 knts Storm direction: 354.3 at 20.8 knts Shear (0-3000m) pos: 0.9 neg: 4.7 tot: 5.6 10-3/s Storm rel Dir Shear (0-3000m): 130.7 deg Storm rel helicity (0-3000m) pos: 19.2 neg: -57.0 tot: -37.8 m^2/s^2 ave: -12.6 10^-3 m/s^2 rel: -0.36 Storm rel vorticity (0-3000m) horiz: 9.2 stream: -3.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.93 Bulk Shear: 65.33 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 18 15 131 9| 0.0 17.4 17.4| 0.0 -27.9 -27.9 -55.8 -0.61| 17.6-10.7 1000 7 20 105 5| 0.0 10.7 10.7| 0.0 -35.6 -35.6 -35.6 -0.66| 13.0 -8.6 1500 2 20 95 3| 0.0 7.0 7.0| 0.0 -36.9 -36.9 -24.6 -0.66| 10.3 -6.8 2000 357 21 77 1| 0.0 6.1 6.1| 1.4 -39.6 -38.2 -19.1 -0.56| 9.2 -5.2 2500 351 22 304 1| 1.1 4.9 6.0| 19.2 -42.0 -22.8 -9.1 -0.31| 9.6 -3.0 3000 347 23 298 4| 0.9 4.7 5.6| 19.2 -57.0 -37.8 -12.6 -0.36| 9.2 -3.3 4000 337 24 283 8| 0.7 4.1 4.8| 39.9-101.1 -61.2 -15.3 -0.35| 8.8 -3.1 5000 330 27 283 12| 1.7 3.3 4.9|116.4-121.5 -5.2 -1.0 -0.18| 8.9 -1.6 6000 324 28 277 14| 1.4 2.3 3.6|116.4-221.2-104.8 -17.5 -0.30| 8.9 -2.6 Wrote GIF file: /home/apache/climate/data/raob//SBCT/skewt/SBCT.skewt.20251209.12.gif