UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101712.upa.cvt Date: 1200Z 17 OCT 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 17 OCT 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 1003 85 23.0 22.0 94 1.0 22.3 290 4 295.9 298.9 295.3 344.3 16.82 1 1000 106 23.4 22.7 96 0.7 22.9 290 4 296.5 299.7 296.1 347.4 17.63 2 973 346 24.2 22.6 91 1.6 23.0 214 8 299.7 303.0 297.1 352.4 18.02 3 948 575 25.0 16.0 57 9.0 18.9 154 3 302.7 305.0 294.0 338.7 12.15 4 925 791 23.6 18.6 74 5.0 20.1 80 4 303.4 306.2 296.0 347.2 14.74 5 850 1527 18.2 16.6 90 1.6 17.1 70 15 305.2 307.8 296.1 347.4 14.12 6 824 1793 16.0 15.2 95 0.8 15.5 72 16 305.6 308.1 295.6 345.4 13.30 7 703 3127 7.8 7.1 95 0.7 7.4 68 15 310.7 312.5 294.0 338.5 9.04 8 700 3162 7.8 6.7 93 1.1 7.1 65 15 311.1 312.8 293.9 338.3 8.83 9 659 3659 6.0 1.8 74 4.2 3.7 55 14 314.5 315.8 293.2 335.3 6.63 10 621 4143 3.4 0.8 83 2.6 2.0 54 14 316.9 318.2 293.7 337.7 6.55 11 543 5219 -4.1 -4.1 100 0.0 -4.1 22 14 320.4 321.4 293.6 337.2 5.21 12 540 5262 -3.3 -4.3 93 1.0 -3.8 26 15 321.9 322.9 294.0 338.6 5.16 13 500 5870 -5.3 -10.3 68 5.0 -7.5 45 16 326.6 327.3 293.9 338.3 3.49 14 492 5997 -5.9 -12.9 58 7.0 -8.8 48 15 327.4 327.9 293.6 337.1 2.88 15 472 6321 -7.1 -11.9 69 4.8 -9.1 61 9 329.8 330.4 294.6 340.9 3.26 16 415 7312 -14.3 -16.9 81 2.6 -15.2 89 10 332.9 333.4 294.7 341.5 2.45 17 400 7590 -16.1 -19.9 72 3.8 -17.3 70 13 334.1 334.5 294.6 341.0 1.97 18 381 7956 -18.5 -23.5 65 5.0 -19.9 75 14 335.6 335.9 294.6 341.0 1.51 19 348 8626 -23.5 -24.6 91 1.1 -23.8 73 12 337.6 337.9 295.1 343.1 1.50 20 329 9036 -25.7 -31.7 57 6.0 -26.9 71 11 340.1 340.2 295.1 343.2 0.82 21 308 9512 -28.7 -36.7 46 8.0 -30.0 93 11 342.3 342.5 295.4 344.4 0.53 22 300 9700 -30.3 -38.3 46 8.0 -31.4 105 12 342.7 342.8 295.4 344.5 0.47 23 283 10113 -33.3 -45.3 29 12.0 -34.6 96 12 344.1 344.2 295.6 345.1 0.24 24 250 10970 -40.9 -47.9 47 7.0 -41.4 100 12 345.3 345.3 295.7 346.1 0.20 25 225 11674 -47.3 -50.8 67 3.5 -47.5 96 11 346.0 346.0 295.9 346.7 0.16 26 221 11792 -47.9 -54.9 44 7.0 -48.2 90 12 346.9 346.9 296.0 347.3 0.10 27 200 12440 -53.9 -59.9 48 6.0 -54.1 90 11 347.4 347.4 296.1 347.7 0.06 28 184 12969 -58.9 -62.4 64 3.5 -59.0 82 12 347.7 347.7 296.1 347.9 0.05 29 150 14220 -69.3 -74.1 50 4.8 -69.4 100 24 350.7 350.7 296.8 350.8 0.01 30 143 14504 -71.5 -76.2 49 4.7 -71.5 100 25 351.7 351.7 297.0 351.7 0.01 31 108 16123 -81.3 -87.3 35 6.0 -81.3 50 14 362.6 362.6 299.2 362.6 0.00 32 101 16503 -78.3 -85.3 31 7.0 -78.3 68 12 375.4 375.4 301.5 375.4 0.00 33 100 16560 -77.7 -84.7 31 7.0 -77.7 90 10 377.6 377.6 301.9 377.6 0.00 34 90 17168 -73.3 -84.3 17 11.0 -73.3 56 12 397.9 397.9 304.9 397.9 0.00 35 80 17850 -76.7 -86.7 19 10.0 -76.7 291 12 404.5 404.5 305.8 404.6 0.00 36 75 18222 -74.9 -86.9 14 12.0 -74.9 260 17 415.9 415.9 307.2 415.9 0.00 37 70 18630 -67.1 -87.1 4 20.0 -67.2 285 10 440.8 440.8 310.0 440.8 0.00 38 68 18805 -65.9 -87.9 3 22.0 -66.1 230 12 447.1 447.1 310.6 447.1 0.00 39 59 19653 -71.9 -89.9 5 18.0 -72.0 282 30 452.1 452.1 311.1 452.1 0.00 40 55 20066 -72.3 -90.3 5 18.0 -72.4 273 20 460.4 460.4 311.8 460.4 0.00 41 52 20397 -69.9 -90.9 3 21.0 -70.1 266 13 473.4 473.4 312.9 473.4 0.00 42 50 20630 -71.1 -91.1 4 20.0 -71.2 55 22 475.9 475.9 313.1 476.0 0.00 43 48 20872 -71.7 -91.7 4 20.0 -71.8 60 17 480.1 480.1 313.5 480.1 0.00 44 46 21126 -67.3 -90.3 2 23.0 -67.5 63 30 496.6 496.6 314.7 496.6 0.00 45 42 21672 -70.7 -92.7 2 22.0 -70.9 98 36 501.3 501.3 315.1 501.3 0.00 46 36 22601 -64.7 -91.7 1 27.0 -65.1 88 53 539.4 539.4 317.5 539.4 0.00 47 34 22950 -65.9 -91.9 1 26.0 -66.3 99 56 545.1 545.1 317.8 545.1 0.00 48 30 23720 -60.9 -90.9 1 30.0 -61.7 95 60 578.6 578.6 319.6 578.6 0.00 49 26 24615 -58.3 -90.3 1 32.0 -59.6 89 64 610.2 610.2 321.0 610.2 0.00 50 24 25118 -58.9 -90.9 1 32.0 -60.2 92 66 622.6 622.6 321.6 622.6 0.00 TRP 108 16123 -81.3 -87.3 35 6.0 -81.3 50 14 362.6 362.6 299.2 362.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5764.00 m Freezing level: 585.64 mb = 4630.81 m = 15192.77 ft Wetbulb zero: 595.75 mb = 4475.83 m = 14684.31 ft Precipitable water: 2.24 inches Sfc-500 mean rel hum: 86.79 % Est. max temperature: 32.25 C = 90.05 F Sfc-Lift cond lev (LCL): 988.83 mb = 204.56 m = 671.11 ft T: 23.73 C 700-500 lapse rate: 4.84 C/km ThetaE index: 13.71 C Layer 948.0- 925.0 mb Conv cond level (CCL): 845.94 mb = 1567.99 m = 5144.26 ft Mean mixing ratio: 15.38 g/kg Conv temperature: 32.38 C = 90.29 F Cap Strength: 2.76 C Lifted Index: -1.10 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.03 C Lifted Index @700 mb: -1.83 C Showalter Index: -1.39 C Risk: Thunderstorms probable Total Totals Index: 45.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.50 C Cross Totals Index: 21.90 C K Index: 39.00 Risk: > 80 % chance of thunderstorms Sweat Index: 245.20 Risk: None Energy Index: -1.88 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 408.34 J/kg Max Up Vert Vel: 28.58 m/s Conv Inhibition (B-): 73.65 J/kg Cap Strength: 2.76 C Lift Cond Lev (LCL): 895.90 mb = 1069.20 m = 3507.83 ft Lev Free Conv (LFC): 800.90 mb = 2031.57 m = 6665.18 ft Equ Level (EL): 300.90 mb = 9678.51 m = 31753.25 ft B at Equ Level: 407.71 J/kg Max Parcel Lev (MPL): 120.90 mb = 15472.31 m = 50761.56 ft Wind level data Storm motion: 88 at 10 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 1003 85 290 4 3.8 -1.4 | 274 14 13.7 -1.0 1 1000 106 290 4 3.8 -1.4 | 274 14 13.7 -1.0 2 978 305 225 9 6.4 6.4 | 247 18 16.3 6.8 3 944 610 145 2 -1.1 1.6 | 257 9 8.8 2.1 4 925 791 80 4 -3.9 -0.7 | 273 6 6.0 -0.3 5 912 914 70 7 -6.6 -2.4 | 300 4 3.4 -2.0 6 881 1219 55 13 -10.6 -7.5 | 5 7 -0.7 -7.0 7 850 1524 70 15 -14.1 -5.1 | 41 6 -4.1 -4.7 8 850 1527 70 15 -14.1 -5.1 | 41 6 -4.1 -4.7 9 791 2134 75 18 -17.4 -4.7 | 60 9 -7.4 -4.2 10 763 2438 75 16 -15.5 -4.1 | 56 7 -5.5 -3.7 11 710 3048 75 15 -14.5 -3.9 | 52 6 -4.5 -3.5 12 700 3162 65 15 -13.6 -6.3 | 31 7 -3.6 -5.9 13 658 3658 55 14 -11.5 -8.0 | 11 8 -1.5 -7.6 14 634 3962 65 15 -13.6 -6.3 | 31 7 -3.6 -5.9 15 610 4267 45 13 -9.2 -9.2 | 355 9 0.8 -8.8 16 588 4572 45 11 -7.8 -7.8 | 343 8 2.2 -7.4 17 566 4877 25 13 -5.5 -11.8 | 338 12 4.5 -11.4 18 545 5182 20 14 -4.8 -13.2 | 338 14 5.2 -12.7 19 524 5486 45 17 -12.0 -12.0 | 10 12 -2.0 -11.6 20 505 5791 40 16 -10.3 -12.3 | 1 12 -0.3 -11.8 21 500 5870 45 16 -11.3 -11.3 | 7 11 -1.3 -10.9 22 486 6096 50 14 -10.7 -9.0 | 5 9 -0.7 -8.6 23 467 6401 65 7 -6.3 -3.0 | 305 4 3.6 -2.5 24 449 6706 80 10 -9.8 -1.7 | 354 1 0.1 -1.3 25 431 7010 70 12 -11.3 -4.1 | 19 4 -1.3 -3.7 26 415 7315 90 10 -10.0 0.0 | 178 0 -0.0 0.4 27 400 7590 70 13 -12.2 -4.4 | 29 5 -2.2 -4.0 28 398 7620 65 14 -12.7 -5.9 | 26 6 -2.7 -5.5 29 382 7925 75 14 -13.5 -3.6 | 48 5 -3.5 -3.2 30 367 8230 75 14 -13.5 -3.6 | 48 5 -3.5 -3.2 31 324 9144 70 10 -9.4 -3.4 | 349 3 0.6 -3.0 32 300 9700 105 12 -11.6 3.1 | 155 4 -1.6 3.5 33 298 9754 105 12 -11.6 3.1 | 155 4 -1.6 3.5 34 273 10363 90 12 -12.0 0.0 | 102 2 -2.0 0.4 35 261 10668 110 10 -9.4 3.4 | 189 4 0.6 3.8 36 250 10970 100 12 -11.8 2.1 | 144 3 -1.8 2.5 37 228 11582 100 11 -10.8 1.9 | 160 2 -0.9 2.3 38 208 12192 70 14 -13.2 -4.8 | 36 5 -3.2 -4.4 39 200 12440 90 11 -11.0 0.0 | 112 1 -1.0 0.4 40 189 12802 90 11 -11.0 0.0 | 112 1 -1.0 0.4 41 180 13106 75 12 -11.6 -3.1 | 31 3 -1.6 -2.7 42 163 13716 95 20 -19.9 1.7 | 102 10 -9.9 2.2 43 150 14220 100 24 -23.6 4.2 | 109 14 -13.7 4.6 44 133 14935 100 27 -26.6 4.7 | 107 17 -16.6 5.1 45 113 15850 30 17 -8.5 -14.7 | 354 14 1.5 -14.3 46 108 16123 50 14 -10.7 -9.0 | 5 9 -0.7 -8.6 47 102 16459 50 14 -10.7 -9.0 | 5 9 -0.7 -8.6 48 100 16560 90 10 -10.0 0.0 | 178 0 -0.0 0.4 49 97 16764 90 10 -10.0 0.0 | 178 0 -0.0 0.4 50 92 17069 100 13 -12.8 2.3 | 133 4 -2.8 2.7 51 87 17374 330 10 5.0 -8.7 | 299 17 15.0 -8.2 52 82 17678 305 10 8.2 -5.7 | 286 19 18.2 -5.3 53 70 18593 230 22 16.9 14.1 | 242 31 26.8 14.6 54 70 18630 285 10 9.7 -2.6 | 276 20 19.6 -2.2 55 67 18898 200 13 4.4 12.2 | 229 19 14.4 12.6 56 60 19507 285 33 31.9 -8.5 | 281 43 41.9 -8.1 57 52 20422 265 12 12.0 1.0 | 266 22 21.9 1.5 58 50 20630 55 22 -18.0 -12.6 | 33 15 -8.0 -12.2 59 49 20726 65 10 -9.1 -4.2 | 346 4 0.9 -3.8 60 47 21031 55 25 -20.5 -14.3 | 37 17 -10.5 -13.9 61 44 21336 80 40 -39.4 -6.9 | 77 30 -29.4 -6.5 62 42 21641 100 35 -34.5 6.1 | 105 25 -24.5 6.5 63 38 22250 70 51 -47.9 -17.4 | 66 42 -37.9 -17.0 64 35 22860 100 55 -54.2 9.6 | 103 45 -44.2 10.0 65 30 23720 95 60 -59.8 5.2 | 96 50 -49.8 5.6 66 30 23774 85 60 -59.8 -5.2 | 84 50 -49.8 -4.8 67 22 24994 95 69 -68.7 6.0 | 96 59 -58.8 6.4 68 21 25298 95 68 -67.7 5.9 | 96 58 -57.8 6.3 Wind Parameters Mean winds (0-6000m): 57.6 at 13.3 knts Storm direction: 87.6 at 10.0 knts Shear (0-3000m) pos: 1.1 neg: 2.2 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 130.9 deg Storm rel helicity (0-3000m) pos: 29.9 neg: -41.2 tot: -11.3 m^2/s^2 ave: -3.8 10^-3 m/s^2 rel: 0.18 Storm rel vorticity (0-3000m) horiz: 7.2 stream: 1.3 10^-3/s Energy-Hel index: 0.08 Bulk Rich Number: 8.35 Bulk Shear: 48.92 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 ------------------------------------------------------------------------------- 500 228 6 253 15| 0.0 6.3 6.3| 5.3 -38.5 -33.1 -66.2 -0.39| 18.5 -7.3 1000 150 6 233 9| 0.0 6.9 6.9| 16.2 -38.5 -22.3 -22.3 0.04| 14.8 0.6 1500 71 8 317 3| 1.8 4.6 6.4| 25.9 -38.5 -12.6 -8.4 0.20| 12.3 2.4 2000 72 10 359 3| 2.1 3.4 5.5| 29.7 -38.5 -8.7 -4.4 0.23| 9.9 2.3 2500 73 12 23 3| 1.3 2.7 4.0| 29.9 -39.6 -9.6 -3.9 0.21| 8.4 1.8 3000 74 12 31 4| 1.1 2.2 3.2| 29.9 -41.2 -11.3 -3.8 0.18| 7.2 1.3 4000 69 13 27 5| 0.8 1.5 2.3| 33.7 -51.6 -17.9 -4.5 0.08| 6.5 0.5 5000 63 13 15 6| 0.6 1.3 1.9| 33.7 -64.0 -30.2 -6.0 -0.03| 6.2 -0.2 6000 58 13 11 7| 1.1 1.1 2.2| 60.4 -70.0 -9.6 -1.6 0.06| 6.3 0.4 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251017.12.gif