UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042500.upa.cvt Date: 0000Z 25 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 25 APR 25 Station: SBTT WMO ident: 82411 Latitude: -4.25 Longitude: -69.94 Elevation: 85.00 ------------------------------------------------------------------------------- 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 1000 85 25.0 24.0 94 1.0 24.3 80 5 298.1 301.6 297.4 353.8 19.11 1 988 191 26.8 22.5 77 4.3 23.7 20 5 301.0 304.2 297.3 352.8 17.63 2 935 673 23.8 23.2 96 0.6 23.4 29 11 302.7 306.3 298.8 360.5 19.49 3 925 767 23.6 21.7 89 1.9 22.2 35 12 303.4 306.8 298.1 356.8 17.94 4 850 1502 19.8 16.3 80 3.5 17.4 30 5 306.9 309.5 296.3 348.6 13.85 5 810 1917 18.2 12.2 68 6.0 14.3 17 8 309.4 311.5 295.1 343.2 11.09 6 700 3153 10.8 6.9 77 3.9 8.4 30 7 314.4 316.2 294.9 342.4 8.96 7 672 3493 9.2 5.5 78 3.7 6.9 23 10 316.3 318.0 295.0 343.0 8.46 8 578 4725 0.6 0.4 99 0.2 0.5 55 10 320.2 321.5 294.8 342.1 6.84 9 500 5880 -5.1 -6.3 91 1.2 -5.7 80 12 326.8 327.8 295.0 342.7 4.78 10 488 6071 -5.9 -7.4 89 1.5 -6.6 76 9 328.1 329.0 295.1 343.2 4.50 11 467 6416 -6.5 -8.7 84 2.2 -7.5 96 10 331.5 332.4 295.7 346.0 4.25 12 433 7003 -10.7 -10.9 98 0.2 -10.8 110 8 333.4 334.2 295.9 346.7 3.85 13 400 7610 -14.1 -15.4 90 1.3 -14.6 115 8 336.7 337.3 295.9 346.8 2.89 14 382 7957 -16.5 -20.3 72 3.8 -17.7 123 11 338.0 338.4 295.6 345.1 1.99 15 362 8359 -19.3 -20.7 89 1.4 -19.7 129 13 339.5 339.9 295.9 346.8 2.03 16 355 8503 -19.7 -34.7 25 15.0 -22.7 129 13 340.8 340.9 295.0 343.0 0.57 17 350 8608 -20.3 -28.3 49 8.0 -22.2 128 13 341.4 341.6 295.6 345.4 1.06 18 346 8693 -20.9 -34.9 27 14.0 -23.7 128 13 341.7 341.8 295.3 343.9 0.57 19 335 8931 -23.1 -24.2 91 1.1 -23.4 126 14 341.9 342.2 296.1 347.8 1.61 20 331 9018 -23.5 -25.5 84 2.0 -24.0 126 14 342.5 342.8 296.1 347.9 1.45 21 330 9040 -23.3 -32.3 43 9.0 -25.2 126 14 343.1 343.2 295.7 346.0 0.77 22 328 9085 -23.5 -35.5 32 12.0 -25.7 125 14 343.4 343.5 295.7 345.6 0.57 23 324 9174 -24.1 -36.1 32 12.0 -26.3 124 14 343.8 343.9 295.7 345.9 0.54 24 320 9265 -24.5 -34.5 39 10.0 -26.4 117 15 344.4 344.6 296.0 346.9 0.64 25 300 9730 -28.9 -32.6 70 3.7 -29.6 80 18 344.6 344.8 296.1 347.8 0.82 26 297 9802 -29.5 -31.7 81 2.2 -29.9 84 19 344.8 345.0 296.3 348.3 0.91 27 289 9996 -30.9 -32.8 83 1.9 -31.2 80 19 345.5 345.7 296.4 348.7 0.84 28 274 10373 -33.3 -39.3 55 6.0 -34.1 72 18 347.3 347.4 296.4 349.2 0.46 29 255 10874 -37.5 -40.6 73 3.1 -37.8 62 17 348.3 348.4 296.7 350.1 0.43 30 250 11010 -38.7 -44.7 53 6.0 -39.3 70 17 348.5 348.6 296.5 349.7 0.29 31 242 11232 -40.5 -43.4 74 2.9 -40.8 70 17 349.1 349.2 296.7 350.5 0.34 32 200 12500 -51.5 -55.4 63 3.9 -51.7 40 11 351.2 351.2 297.0 351.7 0.10 33 173 13423 -59.7 -63.9 58 4.2 -59.8 51 7 352.5 352.6 297.2 352.7 0.04 34 150 14300 -66.5 -72.5 43 6.0 -66.5 110 13 355.5 355.5 297.8 355.6 0.01 35 119 15671 -76.7 -80.4 55 3.7 -76.7 268 14 361.1 361.1 298.9 361.1 0.01 36 101 16604 -81.9 -86.0 49 4.1 -81.9 196 17 368.4 368.4 300.3 368.4 0.00 37 100 16660 -82.3 -86.3 50 4.0 -82.3 180 17 368.7 368.7 300.4 368.7 0.00 38 97 16830 -83.3 -87.2 51 3.9 -83.3 155 13 370.0 370.0 300.5 370.0 0.00 39 79 17974 -82.5 -89.5 29 7.0 -82.5 88 15 394.0 394.0 304.4 394.0 0.00 40 75 18270 -74.9 -86.9 14 12.0 -74.9 256 11 415.9 415.9 307.2 415.9 0.00 41 73 18426 -75.5 -88.5 11 13.0 -75.6 262 11 417.8 417.8 307.4 417.8 0.00 42 70 18670 -74.5 -88.5 10 14.0 -74.6 25 10 425.0 425.0 308.3 425.0 0.00 43 63 19286 -71.5 -88.5 6 17.0 -71.6 302 21 444.6 444.6 310.3 444.6 0.00 44 57 19872 -73.9 -89.9 7 16.0 -74.0 283 31 452.1 452.1 311.1 452.1 0.00 45 50 20650 -65.7 -88.7 3 23.0 -66.0 250 27 488.7 488.7 314.1 488.7 0.00 46 46 21160 -63.3 -88.3 2 25.0 -63.7 250 28 506.2 506.2 315.4 506.3 0.00 47 41 21861 -66.9 -88.9 3 22.0 -67.2 284 27 514.2 514.2 315.9 514.2 0.00 48 37 22480 -67.5 -89.5 3 22.0 -67.8 264 23 528.0 528.0 316.8 528.0 0.00 49 34 22991 -66.1 -91.1 2 25.0 -66.5 284 17 544.6 544.6 317.8 544.6 0.00 50 33 23175 -59.1 -89.1 1 30.0 -60.0 291 17 567.8 567.8 319.0 567.9 0.00 51 33 23175 -57.9 -86.9 1 29.0 -59.0 291 17 571.0 571.0 319.2 571.1 0.01 52 30 23780 -55.1 -85.1 1 30.0 -56.6 185 7 594.4 594.4 320.3 594.5 0.01 53 29 23997 -54.5 -84.5 1 30.0 -56.2 218 5 601.9 601.9 320.7 601.9 0.01 54 23 25471 -57.7 -86.7 1 29.0 -59.2 86 44 633.7 633.7 322.0 633.8 0.01 55 21 26053 -51.7 -83.7 1 32.0 -54.6 62 36 668.5 668.5 323.4 668.7 0.02 56 20 26370 -51.5 -83.5 1 32.0 -54.5 110 35 678.5 678.5 323.7 678.7 0.02 57 19 26703 -51.1 -83.1 1 32.0 -54.4 112 37 689.8 689.8 324.1 690.0 0.02 58 16 27820 -51.5 -83.5 1 32.0 -55.1 92 44 723.3 723.3 325.1 723.4 0.02 TRP 97 16830 -83.3 -87.2 51 3.9 -83.3 155 13 370.0 370.0 300.5 370.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5795.00 m Freezing level: 569.79 mb = 4846.98 m = 15901.98 ft Wetbulb zero: 571.81 mb = 4811.25 m = 15784.76 ft Precipitable water: 2.44 inches Sfc-500 mean rel hum: 84.12 % Est. max temperature: 33.74 C = 92.73 F Sfc-Lift cond lev (LCL): 986.00 mb = 208.62 m = 684.45 ft T: 26.69 C 700-500 lapse rate: 5.83 C/km ThetaE index: 18.18 C Layer 925.0- 672.0 mb Conv cond level (CCL): 873.44 mb = 1265.57 m = 4152.07 ft Mean mixing ratio: 18.21 g/kg Conv temperature: 32.63 C = 90.74 F Cap Strength: 1.41 C Lifted Index: -4.24 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -3.78 C Lifted Index @700 mb: -1.41 C Showalter Index: -1.60 C Risk: Thunderstorms probable Total Totals Index: 46.30 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.90 C Cross Totals Index: 21.40 C K Index: 37.30 Risk: > 80 % chance of thunderstorms Sweat Index: 217.60 Risk: None Energy Index: -1.20 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1380.05 J/kg Max Up Vert Vel: 52.54 m/s Conv Inhibition (B-): 42.01 J/kg Cap Strength: 1.41 C Lift Cond Lev (LCL): 918.72 mb = 826.26 m = 2710.80 ft Lev Free Conv (LFC): 763.72 mb = 2415.17 m = 7923.69 ft Equ Level (EL): 143.72 mb = 14553.41 m = 47746.82 ft B at Equ Level: 1374.74 J/kg Max Parcel Lev (MPL): 73.72 mb = 18369.89 m = 60267.92 ft Wind level data Storm motion: 74 at 7 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 1000 85 80 5 -4.9 -0.9 | 240 2 1.8 1.0 1 975 305 315 6 4.2 -4.2 | 282 11 11.0 -2.3 2 942 610 25 10 -4.2 -9.1 | 341 8 2.5 -7.2 3 925 767 35 12 -6.9 -9.8 | 1 8 -0.2 -7.9 4 909 914 50 11 -8.4 -7.1 | 18 5 -1.7 -5.2 5 850 1502 30 5 -2.5 -4.3 | 300 5 4.2 -2.4 6 789 2134 10 9 -1.6 -8.9 | 324 9 5.1 -7.0 7 761 2438 30 8 -4.0 -6.9 | 332 6 2.7 -5.0 8 700 3153 30 7 -3.5 -6.1 | 322 5 3.2 -4.2 9 658 3658 20 11 -3.8 -10.3 | 341 9 2.9 -8.4 10 610 4267 45 7 -4.9 -4.9 | 330 4 1.8 -3.0 11 545 5182 65 13 -11.8 -5.5 | 55 6 -5.1 -3.6 12 525 5486 85 15 -14.9 -1.3 | 94 8 -8.2 0.6 13 506 5791 80 15 -14.8 -2.6 | 85 8 -8.1 -0.7 14 500 5880 80 12 -11.8 -2.1 | 88 5 -5.1 -0.2 15 486 6096 75 9 -8.7 -2.3 | 78 2 -2.0 -0.4 16 468 6401 95 10 -10.0 0.9 | 130 4 -3.3 2.8 17 449 6706 115 10 -9.1 4.2 | 159 7 -2.4 6.1 18 416 7315 105 5 -4.8 1.3 | 210 4 1.9 3.2 19 400 7610 115 8 -7.3 3.4 | 174 5 -0.5 5.3 20 368 8230 130 13 -10.0 8.4 | 162 11 -3.3 10.3 21 325 9144 125 14 -11.5 8.0 | 154 11 -4.8 9.9 22 300 9730 80 18 -17.7 -3.1 | 84 11 -11.0 -1.2 23 299 9754 85 19 -18.9 -1.7 | 91 12 -12.2 0.2 24 251 10973 60 17 -14.7 -8.5 | 51 10 -8.0 -6.6 25 250 11010 70 17 -16.0 -5.8 | 67 10 -9.3 -3.9 26 219 11887 70 16 -15.0 -5.5 | 67 9 -8.3 -3.6 27 200 12497 35 10 -5.7 -8.2 | 351 6 1.0 -6.3 28 200 12500 40 11 -7.1 -8.4 | 3 7 -0.4 -6.5 29 165 13716 55 6 -4.9 -3.4 | 311 2 1.8 -1.5 30 157 14021 110 12 -11.3 4.1 | 143 8 -4.6 6.0 31 150 14300 110 13 -12.2 4.4 | 139 8 -5.5 6.3 32 149 14326 105 15 -14.5 3.9 | 127 10 -7.8 5.8 33 142 14630 110 11 -10.3 3.8 | 147 7 -3.6 5.7 34 134 14935 130 1 -0.8 0.6 | 247 6 5.9 2.5 35 121 15545 275 10 10.0 -0.9 | 266 17 16.7 1.0 36 115 15850 255 22 21.3 5.7 | 255 29 28.0 7.6 37 104 16459 235 18 14.7 10.3 | 240 25 21.5 12.2 38 100 16660 180 17 0.0 17.0 | 200 20 6.7 18.9 39 98 16764 180 17 0.0 17.0 | 200 20 6.7 18.9 40 97 16830 155 13 -5.5 11.8 | 185 14 1.2 13.7 41 93 17069 155 13 -5.5 11.8 | 185 14 1.2 13.7 42 88 17374 70 21 -19.7 -7.2 | 68 14 -13.0 -5.3 43 83 17678 75 29 -28.0 -7.5 | 75 22 -21.3 -5.6 44 79 17983 85 15 -14.9 -1.3 | 94 8 -8.2 0.6 45 75 18288 260 11 10.8 1.9 | 258 18 17.5 3.8 46 71 18593 265 10 10.0 0.9 | 261 17 16.7 2.8 47 70 18670 25 10 -4.2 -9.1 | 341 8 2.5 -7.2 48 67 18898 25 10 -4.2 -9.1 | 341 8 2.5 -7.2 49 64 19202 305 19 15.6 -10.9 | 292 24 22.3 -9.0 50 58 19812 285 31 29.9 -8.0 | 279 37 36.7 -6.1 51 55 20117 275 29 28.9 -2.5 | 271 36 35.6 -0.6 52 52 20422 235 24 19.7 13.8 | 239 31 26.4 15.7 53 50 20650 250 27 25.4 9.2 | 251 34 32.1 11.1 54 45 21336 250 28 26.3 9.6 | 251 35 33.0 11.5 55 43 21641 280 28 27.6 -4.9 | 275 34 34.3 -3.0 56 40 21946 285 27 26.1 -7.0 | 279 33 32.8 -5.1 57 39 22250 255 25 24.1 6.5 | 255 32 30.9 8.4 58 33 23165 290 16 15.0 -5.5 | 279 22 21.7 -3.6 59 32 23470 300 29 25.1 -14.5 | 292 34 31.8 -12.6 60 30 23774 285 11 10.6 -2.8 | 273 17 17.3 -0.9 61 30 23780 185 7 0.6 7.0 | 220 12 7.3 8.9 62 29 24079 230 4 3.1 2.6 | 245 11 9.8 4.5 63 27 24384 150 11 -5.5 9.5 | 186 11 1.2 11.4 64 26 24689 90 24 -24.0 0.0 | 96 17 -17.3 1.9 65 25 24994 80 32 -31.5 -5.6 | 82 25 -24.8 -3.7 66 24 25298 95 42 -41.8 3.7 | 99 36 -35.1 5.6 67 23 25603 80 46 -45.3 -8.0 | 81 39 -38.6 -6.1 68 22 25908 60 41 -35.5 -20.5 | 57 34 -28.8 -18.6 69 20 26213 65 31 -28.1 -13.1 | 62 24 -21.4 -11.2 70 20 26370 110 35 -32.9 12.0 | 118 30 -26.2 13.9 71 18 26822 115 41 -37.2 17.3 | 122 36 -30.5 19.2 72 15 27432 75 46 -44.4 -11.9 | 75 39 -37.7 -10.0 73 14 27737 65 40 -36.3 -16.9 | 63 33 -29.5 -15.0 74 13 28042 85 37 -36.9 -3.2 | 87 30 -30.2 -1.3 Wind Parameters Mean winds (0-6000m): 44.2 at 9.3 knts Storm direction: 74.2 at 7.0 knts Shear (0-3000m) pos: 1.2 neg: 2.0 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 83.4 deg Storm rel helicity (0-3000m) pos: 38.6 neg: -13.0 tot: 25.6 m^2/s^2 ave: 8.5 10^-3 m/s^2 rel: 0.29 Storm rel vorticity (0-3000m) horiz: 6.9 stream: 2.0 10^-3/s Energy-Hel index: 0.32 Bulk Rich Number: 234.16 Bulk Shear: 5.89 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 ------------------------------------------------------------------------------- 500 358 7 305 8| 0.0 8.7 8.7| 22.8 -4.6 18.2 36.3 0.50| 20.1 10.1 1000 27 9 336 7| 2.1 4.3 6.4| 33.1 -6.7 26.4 26.4 0.49| 14.3 7.0 1500 31 8 334 6| 1.4 3.0 4.4| 33.5 -12.0 21.6 14.4 0.29| 11.2 3.2 2000 28 8 329 6| 1.1 3.1 4.1| 36.6 -12.0 24.7 12.3 0.31| 9.4 2.9 2500 26 8 329 6| 1.4 2.5 3.9| 38.6 -12.1 26.5 10.6 0.31| 8.1 2.5 3000 27 8 328 6| 1.2 2.0 3.2| 38.6 -13.0 25.6 8.5 0.29| 6.9 2.0 4000 27 8 331 6| 1.3 1.9 3.2| 42.6 -13.4 29.2 7.3 0.28| 6.2 1.7 5000 33 8 338 6| 1.6 1.5 3.1| 48.6 -14.0 34.6 6.9 0.33| 5.7 1.9 6000 44 9 357 5| 1.8 1.6 3.4| 59.0 -17.2 41.8 7.0 0.33| 5.9 1.9 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250425.00.gif