UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042812.upa.cvt Date: 1200Z 28 APR 25 Searching for SBCT... Searching the city database file for: SBCT ... Date:1200Z 28 APR 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 101 1 925 780 SFC 911 908 18.0 17.0 94 1.0 17.3 100 3 299.0 301.5 293.9 338.4 13.50 3 850 1502 14.0 14.0 100 0.0 14.0 240 8 300.8 303.0 293.3 335.8 11.91 4 816 1846 12.0 12.0 100 0.0 12.0 260 10 302.2 304.2 292.9 334.4 10.86 5 727 2808 8.2 6.3 88 1.9 7.1 279 17 308.2 309.8 292.6 333.4 8.27 6 716 2935 8.0 2.0 66 6.0 4.7 266 21 309.3 310.5 291.3 328.4 6.18 7 706 3051 9.0 -5.0 37 14.0 2.2 255 25 311.7 312.4 289.8 323.5 3.73 8 700 3122 8.8 -6.2 34 15.0 1.7 250 28 312.2 312.9 289.7 323.2 3.43 9 616 4164 0.2 -3.9 74 4.1 -1.8 272 30 314.0 314.9 291.3 328.7 4.65 10 596 4429 0.2 -25.8 12 26.0 -7.4 268 31 317.0 317.1 288.6 319.7 0.78 11 574 4730 -1.3 -32.3 7 31.0 -9.0 259 35 318.6 318.7 288.8 320.2 0.44 12 557 4970 -2.3 -45.3 2 43.0 -10.4 257 38 320.2 320.2 288.9 320.7 0.12 13 500 5820 -7.5 -44.5 3 37.0 -14.0 255 49 323.9 323.9 290.1 324.5 0.15 14 445 6716 -13.7 -39.7 9 26.0 -18.3 264 57 327.1 327.1 291.2 328.1 0.27 15 400 7520 -17.1 -53.1 3 36.0 -21.5 270 67 332.8 332.8 292.5 333.0 0.07 16 387 7767 -18.7 -54.7 3 36.0 -22.8 272 69 333.8 333.8 292.8 334.1 0.06 17 381 7884 -17.7 -47.7 5 30.0 -22.0 273 70 336.6 336.7 293.6 337.2 0.13 18 300 9630 -30.7 -51.7 11 21.0 -32.6 275 78 342.1 342.1 294.9 342.6 0.11 19 295 9748 -31.1 -55.1 8 24.0 -33.0 275 78 343.2 343.2 295.1 343.5 0.07 20 255 10756 -39.9 -58.9 11 19.0 -40.9 279 82 344.8 344.8 295.5 345.0 0.05 21 250 10890 -40.9 -52.9 26 12.0 -41.6 280 83 345.3 345.3 295.7 345.7 0.11 22 232 11395 -45.5 -49.4 65 3.9 -45.7 281 84 345.7 345.8 295.8 346.5 0.18 23 219 11778 -48.9 -52.0 70 3.1 -49.0 284 84 346.2 346.3 295.9 346.8 0.14 24 215 11899 -49.9 -53.0 70 3.1 -50.0 286 85 346.5 346.5 296.0 347.0 0.13 25 211 12022 -50.3 -66.3 13 16.0 -50.7 287 85 347.8 347.8 296.1 347.9 0.02 26 200 12370 -53.3 -61.3 37 8.0 -53.5 290 85 348.4 348.4 296.3 348.6 0.05 27 192 12631 -55.5 -60.5 54 5.0 -55.6 289 86 348.9 348.9 296.4 349.2 0.06 28 187 12799 -56.5 -68.5 21 12.0 -56.7 287 88 350.0 350.0 296.7 350.0 0.02 29 171 13359 -61.5 -67.5 45 6.0 -61.6 282 94 350.7 350.7 296.8 350.8 0.03 30 168 13469 -62.1 -72.1 25 10.0 -62.2 281 95 351.5 351.5 297.0 351.6 0.01 31 153 14040 -66.5 -72.5 43 6.0 -66.5 276 101 353.5 353.5 297.4 353.6 0.01 32 150 14160 -66.9 -74.9 31 8.0 -67.0 275 102 354.8 354.8 297.7 354.9 0.01 33 147 14281 -67.9 -76.9 27 9.0 -67.9 275 102 355.2 355.2 297.7 355.2 0.01 34 136 14743 -72.2 -77.9 42 5.7 -72.2 275 103 355.5 355.5 297.8 355.5 0.01 35 131 14962 -74.3 -78.4 53 4.1 -74.3 274 103 355.6 355.6 297.8 355.6 0.01 36 130 15006 -74.5 -77.7 61 3.2 -74.5 273 102 356.0 356.0 297.9 356.1 0.01 37 123 15326 -76.1 -81.1 45 5.0 -76.1 265 96 358.8 358.8 298.5 358.8 0.00 38 100 16520 -75.5 -87.5 14 12.0 -75.5 255 75 381.9 381.9 302.5 381.9 0.00 39 92 17009 -70.3 -88.3 5 18.0 -70.4 254 59 401.4 401.4 305.4 401.4 0.00 40 72 18445 -75.9 -89.9 9 14.0 -75.9 252 20 418.6 418.6 307.6 418.6 0.00 41 70 18610 -70.9 -89.9 4 19.0 -71.0 270 11 432.7 432.7 309.1 432.7 0.00 42 68 18783 -68.7 -89.7 3 21.0 -68.8 273 10 441.1 441.1 310.0 441.1 0.00 43 59 19620 -74.9 -90.9 7 16.0 -75.0 275 27 445.4 445.4 310.4 445.4 0.00 44 52 20376 -62.5 -88.5 2 26.0 -62.9 268 14 490.7 490.7 314.2 490.7 0.00 45 50 20620 -59.7 -87.7 1 28.0 -60.3 265 7 502.8 502.8 315.1 502.8 0.00 46 41 21866 -57.7 -86.7 1 29.0 -58.6 263 11 537.1 537.1 317.3 537.2 0.01 47 38 22341 -60.9 -87.9 2 27.0 -61.6 310 10 540.8 540.8 317.6 540.8 0.00 48 32 23426 -54.3 -85.3 1 31.0 -55.9 266 12 585.7 585.7 319.9 585.8 0.01 49 30 23840 -53.7 -84.7 1 31.0 -55.5 245 11 598.2 598.2 320.5 598.3 0.01 50 20 26470 -48.3 -82.3 1 34.0 -52.3 15 17 688.3 688.3 324.0 688.5 0.02 51 19 26808 -48.3 -82.3 1 34.0 -52.4 15 17 698.5 698.5 324.4 698.7 0.02 TRP 123 15326 -76.1 -81.1 45 5.0 -76.1 265 96 358.8 358.8 298.5 358.8 0.00 WND 136 14743 -72.2 -77.9 42 5.7 -72.2 275 103 355.5 355.5 297.8 355.5 0.01 Sounding variables and indices 1000-500 mb thick: 5719.00 m Freezing level: 593.07 mb = 4469.46 m = 14663.40 ft Wetbulb zero: 658.93 mb = 3615.06 m = 11860.30 ft Precipitable water: 1.04 inches Sfc-500 mean rel hum: 54.93 % Est. max temperature: 24.64 C = 76.35 F Sfc-Lift cond lev (LCL): 897.85 mb = 1032.66 m = 3387.96 ft T: 17.16 C 700-500 lapse rate: 6.04 C/km ThetaE index: 15.20 C Layer 850.0- 616.0 mb Conv cond level (CCL): 856.20 mb = 1439.76 m = 4723.56 ft Mean mixing ratio: 12.14 g/kg Conv temperature: 19.56 C = 67.22 F Cap Strength: 2.33 C Lifted Index: 0.86 C Risk: Showers probable Lifted Index @300 mb: 5.67 C Lifted Index @700 mb: 2.33 C Showalter Index: 1.09 C Risk: Showers probable Total Totals Index: 43.00 C Risk: None Vertical Totals Index: 21.50 C Cross Totals Index: 21.50 C K Index: 20.50 Risk: 20-40 % chance of thunderstorms Sweat Index: 233.00 Risk: None Energy Index: -2.14 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 33.02 J/kg Max Up Vert Vel: 8.13 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 2.18 C Lift Cond Lev (LCL): 856.56 mb = 1436.09 m = 4711.52 ft Lev Free Conv (LFC): 851.56 mb = 1486.27 m = 4876.14 ft Equ Level (EL): 741.56 mb = 2643.19 m = 8671.77 ft B at Equ Level: 25.62 J/kg Max Parcel Lev (MPL): 681.56 mb = 3339.66 m = 10956.76 ft Wind level data Storm motion: 290 at 23 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 ---------------------------------------------------------- 0 911 908 100 3 -3.0 0.5 | 109 25 -24.1 8.2 1 850 1502 240 8 6.9 4.0 | 129 18 -14.2 11.7 2 817 1829 260 10 9.8 1.7 | 130 15 -11.3 9.4 3 788 2134 265 13 13.0 1.1 | 137 12 -8.2 8.8 4 760 2438 265 15 14.9 1.3 | 145 11 -6.2 9.0 5 733 2743 285 15 14.5 -3.9 | 120 8 -6.7 3.8 6 706 3048 255 25 24.1 6.5 | 192 14 3.0 14.2 7 700 3122 250 28 26.3 9.6 | 197 18 5.2 17.3 8 607 4267 275 30 29.9 -2.6 | 240 10 8.7 5.1 9 584 4572 260 33 32.5 5.7 | 220 18 11.3 13.4 10 502 5791 250 48 45.1 16.4 | 225 34 23.9 24.1 11 500 5820 255 49 47.3 12.7 | 232 33 26.2 20.4 12 482 6096 260 49 48.3 8.5 | 239 32 27.1 16.2 13 400 7520 270 67 67.0 -0.0 | 260 46 45.8 7.7 14 363 8230 275 72 71.7 -6.3 | 268 51 50.6 1.4 15 348 8534 285 72 69.5 -18.6 | 283 50 48.4 -10.9 16 308 9449 275 78 77.7 -6.8 | 269 57 56.5 0.9 17 300 9630 275 78 77.7 -6.8 | 269 57 56.5 0.9 18 250 10890 280 83 81.7 -14.4 | 276 61 60.6 -6.7 19 236 11278 280 84 82.7 -14.6 | 276 62 61.6 -6.9 20 200 12370 290 85 79.9 -29.1 | 290 62 58.7 -21.4 21 196 12497 290 85 79.9 -29.1 | 290 62 58.7 -21.4 22 150 14160 275 102 101.6 -8.9 | 271 80 80.5 -1.2 23 136 14743 275 103 102.6 -9.0 | 271 81 81.5 -1.3 24 132 14935 275 103 102.6 -9.0 | 271 81 81.5 -1.3 25 123 15326 265 96 95.6 8.4 | 258 76 74.5 16.1 26 100 16520 255 75 72.4 19.4 | 242 58 51.3 27.1 27 96 16764 260 77 75.8 13.4 | 249 59 54.7 21.1 28 86 17374 245 32 29.0 13.5 | 200 23 7.8 21.2 29 74 18288 265 18 17.9 1.6 | 161 10 -3.2 9.3 30 70 18593 240 21 18.2 10.5 | 171 18 -3.0 18.2 31 70 18610 270 11 11.0 -0.0 | 127 13 -10.2 7.7 32 67 18898 275 10 10.0 -0.9 | 121 13 -11.2 6.8 33 57 19812 275 31 30.9 -2.7 | 243 11 9.7 5.0 34 50 20620 265 7 7.0 0.6 | 120 16 -14.2 8.3 35 49 20726 250 12 11.3 4.1 | 140 15 -9.9 11.8 36 47 21031 360 13 -0.0 -13.0 | 76 22 -21.2 -5.3 37 45 21336 355 18 1.6 -17.9 | 62 22 -19.6 -10.2 38 43 21641 320 10 6.4 -7.7 | 90 15 -14.7 0.0 39 41 21946 245 11 10.0 4.6 | 138 17 -11.2 12.3 40 39 22250 320 10 6.4 -7.7 | 90 15 -14.7 0.0 41 37 22555 290 10 9.4 -3.4 | 110 13 -11.8 4.3 42 35 22860 305 15 12.3 -8.6 | 84 9 -8.9 -0.9 43 33 23165 280 13 12.8 -2.3 | 123 10 -8.4 5.4 44 30 23840 245 11 10.0 4.6 | 138 17 -11.2 12.3 45 29 24079 245 11 10.0 4.6 | 138 17 -11.2 12.3 46 26 24689 0 0 -0.0 -0.0 | 110 23 -21.2 7.7 47 24 25298 80 10 -9.8 -1.7 | 101 32 -31.0 6.0 48 23 25603 80 12 -11.8 -2.1 | 100 33 -33.0 5.6 49 22 25908 30 13 -6.5 -11.3 | 83 28 -27.7 -3.6 50 20 26470 15 17 -4.4 -16.4 | 71 27 -25.6 -8.7 51 18 26822 15 17 -4.4 -16.4 | 71 27 -25.6 -8.7 Wind Parameters Mean winds (0-6000m): 260.0 at 30.0 knts Storm direction: 290.0 at 22.5 knts Shear (0-3000m) pos: 4.4 neg: 1.7 tot: 6.0 10-3/s Storm rel Dir Shear (0-3000m): 113.0 deg Storm rel helicity (0-3000m) pos: 123.3 neg: -8.0 tot: 115.3 m^2/s^2 ave: 38.4 10^-3 m/s^2 rel: 0.50 Storm rel vorticity (0-3000m) horiz: 9.2 stream: 4.6 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.35 Bulk Shear: 93.58 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 ------------------------------------------------------------------------------- 500 216 5 123 22| 9.3 0.0 9.3| 58.4 0.0 58.4 116.8 0.78| 11.6 9.0 1000 243 7 126 18| 7.0 0.0 7.0| 62.7 -0.4 62.3 62.3 0.51| 9.7 4.9 1500 255 9 129 16| 6.1 0.0 6.1| 71.5 -0.4 71.1 47.4 0.54| 7.9 4.2 2000 263 11 131 14| 6.0 0.0 6.0| 83.5 -8.0 75.5 37.7 0.45| 8.9 4.0 2500 259 14 144 13| 4.8 2.0 6.8|107.5 -8.0 99.5 39.8 0.47| 9.9 4.6 3000 260 16 155 12| 4.4 1.7 6.0|123.3 -8.0 115.3 38.4 0.50| 9.2 4.6 4000 262 20 175 10| 3.6 2.3 5.9|136.9 -22.4 114.5 28.6 0.38| 8.9 3.4 5000 259 25 196 13| 3.5 2.6 6.1|188.7 -23.1 165.6 33.1 0.38| 8.9 3.4 6000 260 30 213 15| 4.0 2.1 6.1|288.4 -23.1 265.3 44.2 0.43| 8.6 3.7 Wrote GIF file: /home/apache/climate/data/raob//SBCT/skewt/SBCT.skewt.20250428.12.gif