UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120712.upa.cvt Date: 1200Z 7 DEC 25 Searching for SBVT... Searching the city database file for: SBVT ... Date:1200Z 7 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 1015 4 27.0 22.0 74 5.0 23.4 50 4 298.9 301.9 296.0 347.3 16.62 1 1000 135 24.8 20.7 78 4.1 21.9 360 4 298.0 300.8 295.1 343.1 15.55 2 963 465 21.6 19.9 90 1.7 20.4 12 6 297.9 300.7 294.9 342.5 15.36 3 931 759 19.6 18.6 94 1.0 18.9 338 9 298.8 301.5 294.7 341.4 14.64 4 925 815 19.6 17.6 88 2.0 18.2 330 10 299.4 301.9 294.3 339.7 13.82 5 850 1542 16.8 14.1 84 2.7 15.0 310 14 303.7 306.0 294.1 339.4 11.99 6 744 2667 11.6 5.6 67 6.0 8.0 340 4 309.9 311.3 292.7 333.5 7.69 7 705 3115 8.0 5.0 81 3.0 6.2 340 7 310.7 312.2 293.0 334.7 7.78 8 700 3174 8.0 3.2 72 4.8 5.3 340 7 311.3 312.7 292.4 332.7 6.90 9 671 3523 6.8 -4.2 45 11.0 1.4 329 10 313.8 314.6 290.9 327.1 4.17 10 628 4064 2.8 -4.2 60 7.0 -0.6 323 14 315.2 316.1 291.6 329.5 4.46 11 610 4299 2.8 -16.2 23 19.0 -4.4 344 8 317.9 318.2 289.9 323.8 1.77 12 607 4339 2.8 -13.2 30 16.0 -3.7 343 8 318.3 318.7 290.5 325.9 2.28 13 582 4679 0.6 -31.4 7 32.0 -7.8 330 5 319.6 319.7 289.2 321.3 0.48 14 500 5880 -8.1 -35.1 9 27.0 -13.9 265 11 323.2 323.2 290.2 324.6 0.39 15 498 5911 -8.3 -33.3 11 25.0 -13.9 266 11 323.3 323.4 290.3 325.0 0.46 16 443 6808 -12.9 -53.9 2 41.0 -18.2 243 11 328.5 328.5 291.3 328.7 0.06 17 435 6947 -12.5 -51.5 2 39.0 -18.0 211 11 330.7 330.7 292.0 331.0 0.08 18 400 7580 -17.1 -51.1 3 34.0 -21.4 240 8 332.8 332.8 292.6 333.1 0.09 19 340 8773 -27.1 -48.1 12 21.0 -29.3 222 12 335.0 335.0 293.2 335.6 0.14 20 332 8944 -28.5 -39.5 34 11.0 -30.0 225 14 335.4 335.4 293.5 336.8 0.37 21 307 9499 -33.7 -42.7 40 9.0 -34.7 225 20 335.7 335.7 293.5 336.8 0.29 22 305 9545 -34.1 -39.1 61 5.0 -34.7 225 21 335.7 335.8 293.7 337.3 0.42 23 303 9591 -34.3 -37.6 72 3.3 -34.7 225 21 336.1 336.2 293.8 338.0 0.50 24 300 9660 -34.7 -37.8 73 3.1 -35.1 225 22 336.5 336.6 293.9 338.3 0.49 25 292 9848 -36.1 -38.1 82 2.0 -36.3 222 23 337.1 337.2 294.1 339.0 0.49 26 278 10188 -38.3 -45.3 48 7.0 -38.9 218 24 338.7 338.7 294.2 339.6 0.24 27 259 10672 -42.3 -51.3 37 9.0 -42.8 221 24 339.7 339.8 294.4 340.3 0.13 28 250 10910 -44.5 -52.5 41 8.0 -44.9 225 24 339.9 339.9 294.4 340.4 0.12 29 213 11959 -54.3 -58.0 64 3.7 -54.4 229 26 340.6 340.6 294.6 340.9 0.07 30 200 12360 -56.7 -68.7 21 12.0 -56.9 220 23 343.0 343.0 295.0 343.1 0.02 31 199 12392 -56.7 -69.7 18 13.0 -56.9 219 23 343.5 343.5 295.1 343.5 0.02 32 196 12488 -56.3 -74.3 9 18.0 -56.5 215 24 345.6 345.6 295.7 345.6 0.01 33 162 13679 -63.7 -77.7 13 14.0 -63.8 206 34 352.5 352.5 297.2 352.5 0.01 34 150 14150 -64.9 -79.9 11 15.0 -65.0 200 32 358.3 358.3 298.4 358.3 0.00 35 100 16570 -74.9 -87.9 12 13.0 -74.9 185 8 383.0 383.0 302.7 383.0 0.00 36 91 17115 -77.1 -91.1 9 14.0 -77.1 133 6 389.1 389.1 303.6 389.1 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5745.00 m Freezing level: 576.34 mb = 4761.53 m = 15621.63 ft Wetbulb zero: 641.49 mb = 3890.04 m = 12762.44 ft Precipitable water: 1.68 inches Sfc-500 mean rel hum: 55.30 % Est. max temperature: 30.98 C = 87.76 F Sfc-Lift cond lev (LCL): 944.05 mb = 638.12 m = 2093.53 ft T: 20.42 C 700-500 lapse rate: 5.95 C/km ThetaE index: 13.79 C Layer 1000.0- 705.0 mb Conv cond level (CCL): 895.12 mb = 1097.34 m = 3600.16 ft Mean mixing ratio: 15.14 g/kg Conv temperature: 29.19 C = 84.54 F Cap Strength: 0.96 C Lifted Index: -2.32 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.08 C Lifted Index @700 mb: -0.40 C Showalter Index: -1.06 C Risk: Thunderstorms probable Total Totals Index: 47.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.90 C Cross Totals Index: 22.20 C K Index: 34.20 Risk: 60-80 % chance of thunderstorms Sweat Index: 208.20 Risk: None Energy Index: -2.81 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 397.60 J/kg Max Up Vert Vel: 28.20 m/s Conv Inhibition (B-): 56.77 J/kg Cap Strength: 0.98 C Lift Cond Lev (LCL): 930.46 mb = 764.10 m = 2506.85 ft Lev Free Conv (LFC): 715.46 mb = 2992.74 m = 9818.58 ft Equ Level (EL): 195.46 mb = 12505.67 m = 41028.60 ft B at Equ Level: 373.74 J/kg Max Parcel Lev (MPL): 145.46 mb = 14333.60 m = 47025.68 ft Wind level data Storm motion: 351 at 6 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 1015 4 50 4 -3.1 -2.6 | 130 5 -4.0 3.3 1 1000 135 360 4 -0.0 -4.0 | 153 2 -0.9 1.9 2 981 305 25 4 -1.7 -3.6 | 131 3 -2.6 2.3 3 947 610 360 7 -0.0 -7.0 | 40 1 -0.9 -1.1 4 925 815 330 10 5.0 -8.7 | 304 5 4.1 -2.8 5 914 914 330 14 7.0 -12.1 | 316 9 6.1 -6.2 6 850 1542 310 14 10.7 -9.0 | 288 10 9.8 -3.1 7 821 1829 305 11 9.0 -6.3 | 273 8 8.1 -0.4 8 792 2134 320 6 3.9 -4.6 | 246 3 2.9 1.3 9 764 2438 340 3 1.0 -2.8 | 182 3 0.1 3.1 10 700 3174 340 7 2.4 -6.6 | 295 2 1.5 -0.7 11 659 3658 325 11 6.3 -9.0 | 300 6 5.4 -3.1 12 635 3962 315 16 11.3 -11.3 | 298 12 10.4 -5.4 13 611 4267 345 8 2.1 -7.7 | 328 2 1.1 -1.8 14 545 5182 310 1 0.8 -0.6 | 178 5 -0.2 5.2 15 506 5791 250 10 9.4 3.4 | 222 13 8.5 9.3 16 500 5880 265 11 11.0 1.0 | 236 12 10.0 6.8 17 486 6096 275 12 12.0 -1.0 | 246 12 11.0 4.8 18 467 6401 260 13 12.8 2.3 | 236 14 11.9 8.1 19 449 6706 265 11 11.0 1.0 | 236 12 10.0 6.8 20 431 7010 195 11 2.8 10.6 | 187 17 1.9 16.5 21 414 7315 230 18 13.8 11.6 | 216 22 12.8 17.5 22 400 7580 240 8 6.9 4.0 | 211 12 6.0 9.9 23 398 7620 240 12 10.4 6.0 | 218 15 9.4 11.9 24 366 8230 200 9 3.1 8.5 | 188 15 2.1 14.3 25 336 8839 225 13 9.2 9.2 | 209 17 8.2 15.1 26 300 9660 225 22 15.6 15.6 | 214 26 14.6 21.4 27 271 10363 215 25 14.3 20.5 | 207 30 13.4 26.4 28 250 10910 225 24 17.0 17.0 | 215 28 16.0 22.9 29 205 12192 230 26 19.9 16.7 | 220 30 19.0 22.6 30 200 12360 220 23 14.8 17.6 | 210 27 13.8 23.5 31 196 12497 215 24 13.8 19.7 | 207 29 12.8 25.6 32 186 12802 240 27 23.4 13.5 | 229 30 22.4 19.4 33 169 13411 210 32 16.0 27.7 | 204 37 15.1 33.6 34 153 14021 200 36 12.3 33.8 | 196 41 11.4 39.7 35 150 14150 200 32 10.9 30.1 | 196 37 10.0 36.0 36 146 14326 195 32 8.3 30.9 | 191 38 7.3 36.8 37 138 14630 215 26 14.9 21.3 | 207 31 14.0 27.2 38 125 15240 200 32 10.9 30.1 | 196 37 10.0 36.0 39 119 15545 160 14 -4.8 13.2 | 163 20 -5.7 19.0 40 113 15850 200 15 5.1 14.1 | 192 20 4.2 20.0 41 100 16570 185 8 0.7 8.0 | 179 14 -0.2 13.9 42 97 16764 185 8 0.7 8.0 | 179 14 -0.2 13.9 43 87 17374 90 4 -4.0 0.0 | 140 8 -4.9 5.9 Wind Parameters Mean winds (0-6000m): 320.9 at 8.0 knts Storm direction: 350.9 at 6.0 knts Shear (0-3000m) pos: 1.9 neg: 2.9 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 131.3 deg Storm rel helicity (0-3000m) pos: 2.9 neg: -25.5 tot: -22.6 m^2/s^2 ave: -7.5 10^-3 m/s^2 rel: -0.44 Storm rel vorticity (0-3000m) horiz: 6.2 stream: -2.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 69.68 Bulk Shear: 5.71 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 17 4 127 3| 0.0 4.1 4.1| 0.6 -1.6 -1.0 -1.9 -0.26| 6.4 -1.7 1000 350 7 343 1| 0.0 7.2 7.2| 2.1 -5.7 -3.5 -3.5 -0.38| 9.0 -3.4 1500 334 9 309 4| 0.0 5.2 5.2| 2.1 -14.9 -12.8 -8.5 -0.48| 7.3 -3.5 2000 326 10 297 5| 1.5 3.9 5.4| 2.1 -22.2 -20.1 -10.0 -0.49| 7.2 -3.5 2500 326 9 290 4| 2.3 3.1 5.4| 2.1 -25.5 -23.4 -9.4 -0.53| 6.9 -3.7 3000 327 8 286 4| 1.9 2.9 4.9| 2.9 -25.5 -22.6 -7.5 -0.44| 6.2 -2.7 4000 327 9 290 4| 1.4 3.4 4.9| 4.8 -26.6 -21.8 -5.5 -0.32| 6.0 -1.9 5000 328 8 289 4| 2.1 2.5 4.5| 9.2 -29.5 -20.2 -4.0 -0.28| 6.3 -1.8 6000 321 8 274 4| 1.7 2.8 4.5| 27.5 -31.2 -3.7 -0.6 -0.13| 6.6 -0.9 Wrote GIF file: /home/apache/climate/data/raob//SBVT/skewt/SBVT.skewt.20251207.12.gif