UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041812.upa.cvt Date: 1200Z 18 APR 25 Searching for SBVT... Searching the city database file for: SBVT ... Date:1200Z 18 APR 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 1016 4 23.2 22.5 96 0.7 22.7 340 2 295.0 298.1 295.3 344.1 17.13 1 1000 144 23.8 20.8 83 3.0 21.7 230 4 297.0 299.8 294.8 342.2 15.65 2 999 153 23.8 20.8 83 3.0 21.7 228 4 297.0 299.9 294.9 342.3 15.66 3 925 824 19.4 18.0 92 1.4 18.5 150 7 299.1 301.7 294.4 340.5 14.18 4 879 1262 16.8 16.8 100 0.0 16.8 108 7 300.8 303.4 294.7 341.4 13.82 5 850 1549 16.2 15.6 96 0.6 15.8 90 7 303.1 305.6 294.9 342.3 13.23 6 817 1886 15.8 14.1 90 1.7 14.7 61 6 306.1 308.5 295.2 343.6 12.48 7 733 2802 11.8 4.8 62 7.0 7.7 25 5 311.4 312.8 292.9 334.3 7.38 8 700 3186 8.8 1.8 61 7.0 4.9 20 3 312.2 313.4 292.2 331.7 6.24 9 680 3426 7.0 1.0 66 6.0 3.7 282 4 312.8 314.0 292.2 331.8 6.06 10 676 3474 7.4 -3.6 46 11.0 1.9 280 4 313.8 314.6 291.0 327.6 4.34 11 651 3784 6.0 -9.0 33 15.0 -0.7 267 7 315.6 316.2 290.3 325.3 2.97 12 603 4409 2.6 -2.0 72 4.6 0.2 257 11 318.7 319.7 293.4 336.3 5.49 13 592 4558 1.8 -3.2 69 5.0 -0.7 272 12 319.4 320.4 293.3 335.9 5.11 14 588 4613 1.8 -4.2 64 6.0 -1.2 276 12 320.0 321.0 293.2 335.5 4.77 15 577 4766 0.6 -3.9 72 4.5 -1.7 283 16 320.4 321.3 293.4 336.5 4.97 16 570 4864 0.2 -13.8 34 14.0 -5.4 288 18 321.0 321.5 291.3 328.8 2.31 17 567 4906 -0.3 -10.3 47 10.0 -4.6 290 19 320.9 321.5 292.0 331.1 3.08 18 564 4949 -0.5 -16.5 29 16.0 -6.5 290 19 321.2 321.5 291.0 327.5 1.87 19 542 5266 -3.7 -5.5 87 1.8 -4.6 286 21 321.0 322.0 293.4 336.3 4.69 20 516 5653 -5.7 -9.5 75 3.8 -7.4 260 25 323.2 323.9 293.1 335.1 3.61 21 500 5900 -7.9 -10.7 80 2.8 -9.1 260 30 323.4 324.1 293.0 334.7 3.38 22 474 6312 -11.7 -12.1 97 0.4 -11.9 257 33 323.7 324.3 292.9 334.3 3.19 23 468 6410 -11.9 -14.5 81 2.6 -12.9 258 34 324.6 325.1 292.7 333.6 2.66 24 465 6459 -11.3 -20.3 47 9.0 -14.2 259 34 326.0 326.3 292.2 331.6 1.64 25 462 6509 -11.1 -22.1 40 11.0 -14.4 259 35 326.8 327.1 292.2 331.8 1.41 26 456 6609 -11.9 -21.9 43 10.0 -14.9 261 36 327.0 327.3 292.3 332.1 1.45 27 449 6728 -11.3 -36.3 11 25.0 -16.4 262 38 329.2 329.3 291.9 330.7 0.38 28 431 7042 -11.7 -45.7 4 34.0 -17.3 265 41 332.6 332.6 292.6 333.2 0.15 29 400 7610 -15.7 -28.7 32 13.0 -18.9 265 41 334.6 334.8 293.8 337.9 0.89 30 399 7629 -15.9 -28.9 32 13.0 -19.1 265 42 334.6 334.7 293.8 337.8 0.88 31 367 8250 -20.3 -39.3 17 19.0 -23.5 255 42 336.8 336.9 293.9 338.1 0.34 32 312 9424 -30.3 -49.3 14 19.0 -32.1 247 53 338.9 338.9 294.1 339.4 0.14 33 300 9700 -32.9 -50.9 15 18.0 -34.4 245 56 339.0 339.0 294.2 339.5 0.12 34 278 10233 -37.5 -51.5 22 14.0 -38.5 255 57 339.8 339.9 294.4 340.3 0.12 35 250 10960 -43.7 -46.5 74 2.8 -43.9 275 51 341.1 341.1 294.8 342.0 0.23 36 245 11096 -44.7 -47.0 78 2.3 -44.9 275 51 341.6 341.6 294.9 342.5 0.23 37 241 11206 -45.3 -52.3 45 7.0 -45.7 275 51 342.3 342.3 295.0 342.8 0.13 38 232 11459 -46.9 -50.2 69 3.3 -47.1 276 54 343.6 343.6 295.3 344.3 0.17 39 220 11809 -49.3 -55.3 49 6.0 -49.6 278 61 345.2 345.2 295.6 345.6 0.10 40 218 11869 -49.5 -57.5 39 8.0 -49.8 278 62 345.8 345.8 295.7 346.1 0.07 41 217 11899 -49.5 -60.5 26 11.0 -49.8 278 63 346.2 346.2 295.8 346.4 0.05 42 209 12145 -51.1 -59.1 38 8.0 -51.4 279 68 347.4 347.5 296.1 347.7 0.06 43 205 12270 -51.9 -63.2 25 11.3 -52.2 280 70 348.1 348.1 296.3 348.3 0.04 44 203 12334 -52.3 -65.3 19 13.0 -52.6 280 69 348.5 348.5 296.3 348.6 0.03 45 200 12430 -52.9 -63.9 25 11.0 -53.2 280 68 349.0 349.0 296.4 349.2 0.04 46 169 13492 -61.9 -71.9 25 10.0 -62.0 269 64 351.3 351.3 296.9 351.3 0.01 47 156 13982 -65.9 -70.0 56 4.1 -66.0 263 61 352.6 352.6 297.2 352.7 0.02 48 151 14180 -65.7 -81.7 9 16.0 -65.8 260 60 356.2 356.2 298.0 356.2 0.00 49 150 14220 -65.9 -80.9 11 15.0 -66.0 260 60 356.6 356.6 298.0 356.6 0.00 50 144 14468 -66.3 -82.3 9 16.0 -66.4 258 59 360.1 360.1 298.7 360.1 0.00 51 101 16544 -80.3 -87.3 30 7.0 -80.3 287 48 371.5 371.5 300.8 371.5 0.00 52 100 16600 -80.5 -87.5 30 7.0 -80.5 285 50 372.2 372.2 300.9 372.2 0.00 53 97 16771 -81.5 -89.5 24 8.0 -81.5 270 53 373.5 373.5 301.2 373.5 0.00 54 88 17326 -75.9 -87.9 13 12.0 -75.9 248 35 395.3 395.3 304.6 395.3 0.00 55 80 17873 -78.7 -89.7 15 11.0 -78.7 257 24 400.4 400.4 305.3 400.4 0.00 56 78 18018 -75.3 -89.3 9 14.0 -75.3 253 25 410.4 410.4 306.6 410.4 0.00 57 70 18650 -72.3 -90.3 5 18.0 -72.4 260 7 429.7 429.7 308.8 429.7 0.00 58 65 19083 -75.3 -90.3 8 15.0 -75.3 274 12 432.4 432.4 309.1 432.4 0.00 59 61 19456 -69.7 -90.7 3 21.0 -69.8 320 15 452.7 452.7 311.1 452.8 0.00 60 50 20650 -66.9 -89.9 3 23.0 -67.1 345 4 485.8 485.8 313.9 485.8 0.00 61 49 20772 -67.3 -90.3 2 23.0 -67.5 26 3 487.7 487.7 314.1 487.7 0.00 62 46 21157 -62.7 -89.7 1 27.0 -63.1 128 6 507.7 507.7 315.5 507.7 0.00 63 44 21431 -63.1 -89.1 2 26.0 -63.6 130 13 513.2 513.2 315.8 513.2 0.00 64 37 22514 -56.3 -86.3 1 30.0 -57.5 95 15 556.7 556.7 318.5 556.8 0.01 65 31 23633 -57.9 -86.9 1 29.0 -59.0 103 21 581.3 581.3 319.8 581.4 0.01 66 30 23840 -57.5 -87.5 1 30.0 -58.7 85 22 587.9 587.9 320.0 587.9 0.01 67 20 26440 -52.9 -84.9 1 32.0 -55.6 105 31 674.3 674.3 323.6 674.4 0.01 68 15 28326 -45.7 -82.7 1 37.0 -51.5 108 32 756.0 756.0 326.1 756.2 0.03 TRP 97 16771 -81.5 -89.5 24 8.0 -81.5 270 53 373.5 373.5 301.2 373.5 0.00 WND 205 12270 -51.9 -63.2 25 11.3 -52.2 280 70 348.1 348.1 296.3 348.3 0.04 Sounding variables and indices 1000-500 mb thick: 5756.00 m Freezing level: 568.80 mb = 4880.62 m = 16012.33 ft Wetbulb zero: 657.63 mb = 3701.10 m = 12142.59 ft Precipitable water: 1.95 inches Sfc-500 mean rel hum: 72.85 % Est. max temperature: 30.08 C = 86.14 F Sfc-Lift cond lev (LCL): 1006.08 mb = 90.56 m = 297.11 ft T: 23.57 C 700-500 lapse rate: 6.15 C/km ThetaE index: 11.94 C Layer 733.0- 680.0 mb Conv cond level (CCL): 914.04 mb = 926.44 m = 3039.46 ft Mean mixing ratio: 15.08 g/kg Conv temperature: 27.76 C = 81.96 F Cap Strength: 1.82 C Lifted Index: -1.77 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.19 C Lifted Index @700 mb: 0.64 C Showalter Index: -2.06 C Risk: Severe thunderstorms possible Total Totals Index: 47.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.10 C Cross Totals Index: 23.50 C K Index: 32.70 Risk: 60-80 % chance of thunderstorms Sweat Index: 231.20 Risk: None Energy Index: -1.54 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 108.18 J/kg Max Up Vert Vel: 14.71 m/s Conv Inhibition (B-): 125.42 J/kg Cap Strength: 1.77 C Lift Cond Lev (LCL): 936.79 mb = 713.58 m = 2341.11 ft Lev Free Conv (LFC): 561.79 mb = 4979.91 m = 16338.07 ft Equ Level (EL): 441.79 mb = 6852.42 m = 22481.44 ft B at Equ Level: 104.53 J/kg Max Parcel Lev (MPL): 311.79 mb = 9428.49 m = 30932.98 ft Wind level data Storm motion: 297 at 8 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 1016 4 340 2 0.7 -1.9 | 105 7 -6.3 1.7 1 1000 144 230 4 3.1 2.6 | 147 7 -3.9 6.1 2 982 305 185 9 0.8 9.0 | 154 14 -6.2 12.5 3 948 610 135 10 -7.1 7.1 | 127 18 -14.1 10.6 4 925 824 150 7 -3.5 6.1 | 132 14 -10.5 9.6 5 915 914 130 7 -5.4 4.5 | 123 15 -12.4 8.0 6 850 1549 90 7 -7.0 0.0 | 104 14 -14.0 3.5 7 793 2134 40 5 -3.2 -3.8 | 88 10 -10.2 -0.3 8 765 2438 30 7 -3.5 -6.1 | 76 11 -10.5 -2.5 9 700 3186 20 3 -1.0 -2.8 | 95 8 -8.0 0.7 10 686 3353 285 3 2.9 -0.8 | 124 5 -4.1 2.8 11 612 4267 245 11 10.0 4.6 | 200 9 3.0 8.2 12 589 4572 275 12 12.0 -1.0 | 243 6 5.0 2.5 13 568 4877 290 19 17.9 -6.5 | 285 11 10.9 -3.0 14 547 5182 290 20 18.8 -6.8 | 286 12 11.8 -3.3 15 507 5791 250 27 25.4 9.2 | 235 22 18.4 12.8 16 500 5900 260 30 29.5 5.2 | 249 24 22.5 8.7 17 487 6096 255 30 29.0 7.8 | 243 25 22.0 11.3 18 433 7010 265 41 40.8 3.6 | 258 35 33.8 7.1 19 400 7610 265 41 40.8 3.6 | 258 35 33.8 7.1 20 383 7925 260 51 50.2 8.9 | 254 45 43.2 12.4 21 367 8230 255 42 40.6 10.9 | 247 37 33.6 14.4 22 300 9700 245 56 50.8 23.7 | 238 52 43.8 27.2 23 285 10058 250 58 54.5 19.8 | 244 53 47.5 23.4 24 250 10960 275 51 50.8 -4.4 | 271 44 43.8 -0.9 25 238 11278 275 51 50.8 -4.4 | 271 44 43.8 -0.9 26 205 12270 280 70 68.9 -12.2 | 278 63 61.9 -8.6 27 200 12430 280 68 67.0 -11.8 | 278 61 60.0 -8.3 28 198 12497 280 70 68.9 -12.2 | 278 63 61.9 -8.6 29 150 14220 260 60 59.1 10.4 | 255 54 52.1 14.0 30 120 15545 250 54 50.7 18.5 | 243 49 43.7 22.0 31 102 16459 290 45 42.3 -15.4 | 289 37 35.3 -11.9 32 100 16600 285 50 48.3 -12.9 | 283 42 41.3 -9.4 33 97 16764 285 50 48.3 -12.9 | 283 42 41.3 -9.4 34 97 16771 270 53 53.0 -0.0 | 266 46 46.0 3.5 35 92 17069 265 54 53.8 4.7 | 260 48 46.8 8.2 36 87 17374 245 32 29.0 13.5 | 232 28 22.0 17.1 37 83 17678 270 20 20.0 -0.0 | 255 13 13.0 3.5 38 79 17983 250 26 24.4 8.9 | 235 21 17.4 12.4 39 75 18288 270 19 19.0 -0.0 | 254 13 12.0 3.5 40 71 18593 245 25 22.7 10.6 | 228 21 15.7 14.1 41 70 18650 260 7 6.9 1.2 | 179 5 -0.1 4.8 42 67 18898 250 11 10.3 3.8 | 205 8 3.3 7.3 43 61 19507 325 15 8.6 -12.3 | 350 9 1.6 -8.7 44 52 20422 330 11 5.5 -9.5 | 14 6 -1.5 -6.0 45 50 20650 345 4 1.0 -3.9 | 87 6 -6.0 -0.3 46 47 21031 110 1 -0.9 0.3 | 116 9 -7.9 3.9 47 45 21336 150 11 -5.5 9.5 | 136 18 -12.5 13.1 48 43 21641 95 17 -16.9 1.5 | 102 24 -23.9 5.0 49 41 21946 95 22 -21.9 1.9 | 101 29 -28.9 5.5 50 39 22250 100 15 -14.8 2.6 | 106 23 -21.8 6.1 51 35 22860 90 16 -16.0 0.0 | 99 23 -23.0 3.5 52 30 23774 105 22 -21.3 5.7 | 108 30 -28.2 9.2 53 30 23840 85 22 -21.9 -1.9 | 93 29 -28.9 1.6 54 26 24689 75 28 -27.0 -7.2 | 84 34 -34.0 -3.7 55 25 24994 65 23 -20.8 -9.7 | 77 29 -27.8 -6.2 56 23 25603 80 25 -24.6 -4.3 | 89 32 -31.6 -0.8 57 21 26213 75 25 -24.1 -6.5 | 85 31 -31.1 -2.9 58 20 26440 105 31 -29.9 8.0 | 107 39 -36.9 11.6 59 20 26518 100 22 -21.7 3.8 | 104 30 -28.7 7.4 60 14 27737 110 34 -31.9 11.6 | 111 42 -38.9 15.2 61 11 28651 90 42 -42.0 0.0 | 94 49 -49.0 3.5 Wind Parameters Mean winds (0-6000m): 266.8 at 10.5 knts Storm direction: 296.8 at 7.8 knts Shear (0-3000m) pos: 2.0 neg: 2.2 tot: 4.2 10-3/s Storm rel Dir Shear (0-3000m): -15.6 deg Storm rel helicity (0-3000m) pos: 19.4 neg: -77.4 tot: -58.0 m^2/s^2 ave: -19.3 10^-3 m/s^2 rel: -0.27 Storm rel vorticity (0-3000m) horiz: 7.2 stream: -2.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 6.03 Bulk Shear: 17.93 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 ------------------------------------------------------------------------------- 500 184 7 147 12| 12.0 0.0 12.0| 9.2 -20.0 -10.8 -21.7 0.04| 18.7 0.7 1000 157 7 136 14| 6.0 2.5 8.4| 14.7 -43.7 -29.0 -29.0 -0.14| 14.1 -1.9 1500 140 7 128 15| 4.0 2.9 6.9| 14.7 -58.6 -44.0 -29.3 -0.24| 10.7 -2.6 2000 125 7 121 15| 3.0 3.1 6.1| 14.7 -70.6 -55.9 -28.0 -0.30| 9.3 -2.8 2500 110 7 113 15| 2.4 3.0 5.4| 14.7 -77.4 -62.7 -25.1 -0.34| 8.1 -2.8 3000 96 7 107 14| 2.0 2.2 4.2| 19.4 -77.4 -58.0 -19.3 -0.27| 7.2 -2.0 4000 95 6 107 14| 1.5 1.9 3.4| 30.6 -77.4 -46.8 -11.7 -0.05| 6.9 -0.4 5000 263 8 187 4| 0.5 1.5 2.0| 53.7 -77.4 -23.6 -4.7 0.13| 7.3 0.9 6000 267 10 220 5| 0.4 2.1 2.6| 83.5-148.9 -65.4 -10.9 -0.02| 8.1 -0.1 Wrote GIF file: /home/apache/climate/data/raob//SBVT/skewt/SBVT.skewt.20250418.12.gif