UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100612.upa.cvt Date: 1200Z 6 OCT 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 6 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 22.0 20.0 88 2.0 20.6 130 4 294.9 297.6 293.7 337.4 14.83 1 1000 108 22.0 20.5 91 1.5 21.0 130 4 295.1 297.9 294.1 339.2 15.35 2 991 187 21.6 20.6 94 1.0 20.9 102 12 295.5 298.3 294.4 340.3 15.60 3 968 392 24.2 16.2 61 8.0 18.8 64 23 300.1 302.3 293.2 335.4 12.05 4 935 696 24.4 15.4 57 9.0 18.4 77 24 303.3 305.5 294.0 338.5 11.85 5 925 790 24.2 15.2 57 9.0 18.1 80 24 304.1 306.2 294.1 339.3 11.82 6 917 866 24.6 13.6 50 11.0 17.3 86 22 305.2 307.2 293.7 337.4 10.73 7 866 1366 20.0 16.2 79 3.8 17.4 79 15 305.5 308.0 295.7 345.9 13.50 8 850 1527 19.4 14.7 74 4.7 16.3 80 12 306.5 308.8 295.3 344.0 12.47 9 840 1629 19.4 13.4 68 6.0 15.4 82 12 307.5 309.7 294.9 342.5 11.58 10 700 3172 9.4 5.7 78 3.7 7.2 105 13 312.9 314.5 293.9 338.5 8.24 11 576 4760 -1.1 -1.3 99 0.2 -1.2 124 16 318.5 319.7 293.8 337.9 6.05 12 524 5512 -4.3 -7.5 78 3.2 -5.8 145 20 323.4 324.2 293.6 337.2 4.16 13 504 5818 -6.3 -7.7 90 1.4 -7.0 141 15 324.6 325.5 294.0 338.7 4.26 14 500 5880 -6.3 -8.8 82 2.5 -7.4 140 14 325.4 326.1 293.9 338.5 3.94 15 495 5959 -6.5 -11.5 68 5.0 -8.6 144 12 326.1 326.7 293.5 336.8 3.21 16 472 6330 -9.7 -12.9 77 3.2 -11.0 131 12 326.6 327.1 293.5 336.7 3.00 17 459 6546 -9.3 -10.8 89 1.5 -9.9 114 15 329.7 330.4 294.8 342.1 3.66 18 433 6996 -12.1 -13.1 92 1.0 -12.5 105 14 331.7 332.3 295.0 342.7 3.22 19 400 7600 -15.7 -16.9 90 1.2 -16.2 80 9 334.6 335.1 295.1 343.5 2.55 20 345 8701 -23.3 -25.2 84 1.9 -23.8 92 13 338.7 339.0 295.3 344.0 1.43 21 300 9710 -31.1 -33.2 82 2.1 -31.4 85 17 341.5 341.7 295.4 344.5 0.78 22 250 10970 -41.9 -46.6 60 4.7 -42.3 75 14 343.8 343.8 295.4 344.7 0.23 23 236 11357 -45.3 -48.1 73 2.8 -45.5 72 16 344.3 344.4 295.6 345.2 0.21 24 215 11972 -50.5 -55.5 55 5.0 -50.7 85 21 345.6 345.6 295.7 346.0 0.10 25 200 12440 -54.3 -65.3 25 11.0 -54.5 85 15 346.8 346.8 296.0 346.9 0.03 26 195 12602 -55.5 -67.5 21 12.0 -55.7 85 14 347.4 347.4 296.1 347.5 0.02 27 166 13607 -64.5 -69.5 50 5.0 -64.6 109 9 348.7 348.7 296.4 348.8 0.02 28 159 13869 -66.5 -79.5 14 13.0 -66.6 135 9 349.7 349.7 296.5 349.7 0.00 29 151 14180 -68.1 -79.1 19 11.0 -68.2 179 12 352.1 352.1 297.1 352.1 0.01 30 150 14220 -67.9 -78.9 19 11.0 -67.9 185 12 353.1 353.1 297.3 353.1 0.01 31 143 14507 -66.3 -81.3 10 15.0 -66.4 175 15 360.8 360.8 298.8 360.8 0.00 32 101 16562 -74.5 -85.5 17 11.0 -74.5 355 18 382.7 382.7 302.7 382.7 0.00 33 100 16620 -74.7 -85.7 17 11.0 -74.7 360 21 383.4 383.4 302.8 383.4 0.00 34 72 18501 -80.9 -87.9 30 7.0 -80.9 330 6 408.0 408.0 306.3 408.0 0.00 35 70 18660 -80.3 -87.3 30 7.0 -80.3 295 2 412.6 412.6 306.8 412.6 0.00 36 65 19082 -79.5 -88.5 21 9.0 -79.6 231 8 423.2 423.2 308.1 423.2 0.00 37 58 19746 -70.7 -89.7 4 19.0 -70.8 268 16 457.1 457.1 311.5 457.1 0.00 38 56 19954 -71.9 -89.9 5 18.0 -72.0 275 18 458.9 458.9 311.7 458.9 0.00 39 53 20280 -71.9 -90.9 4 19.0 -72.0 277 17 466.2 466.2 312.3 466.2 0.00 40 50 20630 -65.9 -89.9 2 24.0 -66.2 115 13 488.2 488.2 314.1 488.2 0.00 41 45 21266 -67.9 -90.9 2 23.0 -68.1 106 26 498.3 498.3 314.8 498.3 0.00 42 38 22287 -66.1 -91.1 2 25.0 -66.4 102 40 527.5 527.5 316.8 527.6 0.00 43 36 22618 -62.1 -90.1 1 28.0 -62.7 109 45 546.1 546.1 317.9 546.1 0.00 44 30 23750 -60.3 -89.3 1 29.0 -61.2 95 60 580.3 580.3 319.7 580.3 0.00 45 28 24182 -59.0 -89.0 1 30.0 -60.2 90 64 595.3 595.3 320.4 595.3 0.00 46 26 24649 -57.7 -88.7 1 31.0 -59.0 81 60 611.9 611.9 321.2 611.9 0.01 47 25 24895 -59.3 -89.3 1 30.0 -60.4 83 59 614.2 614.2 321.2 614.2 0.01 48 20 26310 -54.5 -87.5 1 33.0 -56.8 100 59 669.4 669.4 323.4 669.4 0.01 49 18 26987 -52.9 -86.9 1 34.0 -55.8 98 59 694.9 694.9 324.3 695.0 0.01 TRP 72 18501 -80.9 -87.9 30 7.0 -80.9 330 6 408.0 408.0 306.3 408.0 0.00 WND 28 24182 -59.0 -89.0 1 30.0 -60.2 90 64 595.3 595.3 320.4 595.3 0.00 Sounding variables and indices 1000-500 mb thick: 5772.00 m Freezing level: 588.99 mb = 4593.76 m = 15071.19 ft Wetbulb zero: 593.92 mb = 4510.62 m = 14798.43 ft Precipitable water: 2.06 inches Sfc-500 mean rel hum: 78.75 % Est. max temperature: 33.39 C = 92.10 F Sfc-Lift cond lev (LCL): 974.33 mb = 334.70 m = 1098.08 ft T: 23.48 C 700-500 lapse rate: 5.80 C/km ThetaE index: 8.70 C Layer 850.0- 504.0 mb Conv cond level (CCL): 744.57 mb = 2649.58 m = 8692.74 ft Mean mixing ratio: 12.57 g/kg Conv temperature: 38.22 C = 100.80 F Cap Strength: 5.20 C Lifted Index: 1.30 C Risk: Showers probable Lifted Index @300 mb: 4.15 C Lifted Index @700 mb: 2.35 C Showalter Index: -1.10 C Risk: Thunderstorms probable Total Totals Index: 46.70 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.70 C Cross Totals Index: 21.00 C K Index: 36.70 Risk: > 80 % chance of thunderstorms Sweat Index: 214.40 Risk: None Energy Index: -1.13 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 41.57 J/kg Max Up Vert Vel: 9.12 m/s Conv Inhibition (B-): 24167.80 J/kg Cap Strength: 5.17 C Lift Cond Lev (LCL): 857.68 mb = 1449.24 m = 4754.67 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 137 at 12 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 85 130 4 -3.1 2.6 | 321 8 4.8 -5.9 1 1000 108 130 4 -3.1 2.6 | 321 8 4.8 -5.9 2 978 305 60 23 -19.9 -11.5 | 31 23 -12.1 -20.0 3 944 610 75 24 -23.2 -6.2 | 46 21 -15.3 -14.7 4 925 790 80 24 -23.6 -4.2 | 51 20 -15.8 -12.6 5 912 914 90 20 -20.0 0.0 | 55 15 -12.2 -8.5 6 850 1524 75 13 -12.6 -3.4 | 22 13 -4.7 -11.8 7 850 1527 80 12 -11.8 -2.1 | 21 11 -4.0 -10.5 8 791 2134 95 11 -11.0 1.0 | 23 8 -3.1 -7.5 9 763 2438 100 13 -12.8 2.3 | 39 8 -5.0 -6.2 10 700 3172 105 13 -12.6 3.4 | 43 7 -4.7 -5.1 11 611 4267 125 16 -13.1 9.2 | 98 5 -5.3 0.7 12 588 4572 130 15 -11.5 9.6 | 108 4 -3.6 1.2 13 566 4877 120 16 -13.9 8.0 | 86 6 -6.0 -0.5 14 525 5486 145 20 -11.5 16.4 | 155 9 -3.6 7.9 15 500 5880 140 14 -9.0 10.7 | 153 3 -1.2 2.3 16 486 6096 150 8 -4.0 6.9 | 292 4 3.8 -1.5 17 449 6706 100 18 -17.7 3.1 | 62 11 -9.9 -5.3 18 432 7010 105 14 -13.5 3.6 | 50 7 -5.7 -4.8 19 400 7600 80 9 -8.9 -1.6 | 6 10 -1.0 -10.0 20 383 7925 80 9 -8.9 -1.6 | 6 10 -1.0 -10.0 21 367 8230 85 13 -13.0 -1.1 | 28 11 -5.1 -9.6 22 324 9144 100 12 -11.8 2.1 | 32 8 -4.0 -6.4 23 300 9710 85 17 -16.9 -1.5 | 42 13 -9.1 -9.9 24 250 10970 75 14 -13.5 -3.6 | 25 13 -5.7 -12.1 25 239 11278 70 15 -14.1 -5.1 | 25 15 -6.2 -13.6 26 218 11887 85 22 -21.9 -1.9 | 54 17 -14.1 -10.4 27 200 12440 85 15 -14.9 -1.3 | 36 12 -7.1 -9.8 28 180 13106 85 11 -11.0 -1.0 | 18 10 -3.1 -9.4 29 163 13716 115 8 -7.3 3.4 | 353 5 0.6 -5.1 30 150 14220 185 12 1.0 12.0 | 249 10 8.9 3.5 31 147 14326 190 14 2.4 13.8 | 243 12 10.3 5.3 32 140 14630 165 15 -3.9 14.5 | 213 7 4.0 6.0 33 133 14935 160 22 -7.5 20.7 | 182 12 0.3 12.2 34 126 15240 250 14 13.2 4.8 | 280 21 21.0 -3.7 35 120 15545 280 21 20.7 -3.6 | 293 31 28.5 -12.1 36 114 15850 275 21 20.9 -1.8 | 290 31 28.8 -10.3 37 108 16154 255 11 10.6 2.8 | 287 19 18.5 -5.6 38 103 16459 345 12 3.1 -11.6 | 331 23 11.0 -20.1 39 100 16620 360 21 -0.0 -21.0 | 345 30 7.8 -29.5 40 98 16764 360 21 -0.0 -21.0 | 345 30 7.8 -29.5 41 88 17374 360 11 -0.0 -11.0 | 338 21 7.8 -19.5 42 83 17678 290 3 2.8 -1.0 | 312 14 10.7 -9.5 43 75 18288 285 10 9.7 -2.6 | 302 21 17.5 -11.1 44 72 18501 330 6 3.0 -5.2 | 322 17 10.8 -13.7 45 70 18660 295 2 1.8 -0.8 | 314 13 9.7 -9.3 46 67 18898 295 2 1.8 -0.8 | 314 13 9.7 -9.3 47 64 19202 195 11 2.8 10.6 | 259 11 10.7 2.2 48 61 19507 260 14 13.8 2.4 | 286 22 21.6 -6.0 49 55 20117 280 19 18.7 -3.3 | 294 29 26.6 -11.8 50 52 20422 275 15 14.9 -1.3 | 293 25 22.8 -9.8 51 50 20630 115 13 -11.8 5.5 | 53 5 -3.9 -3.0 52 49 20726 335 10 4.2 -9.1 | 325 21 12.1 -17.5 53 47 21031 120 16 -13.9 8.0 | 86 6 -6.0 -0.5 54 42 21641 85 42 -41.8 -3.7 | 70 36 -34.0 -12.1 55 40 21946 90 33 -33.0 0.0 | 71 27 -25.2 -8.5 56 36 22555 110 44 -41.3 15.0 | 101 34 -33.5 6.6 57 30 23750 95 60 -59.8 5.2 | 86 52 -51.9 -3.2 58 28 24182 90 64 -64.0 0.0 | 81 57 -56.2 -8.5 59 27 24384 90 64 -64.0 0.0 | 81 57 -56.2 -8.5 60 26 24689 80 59 -58.1 -10.2 | 70 54 -50.3 -18.7 61 20 26213 100 59 -58.1 10.2 | 92 50 -50.3 1.8 62 20 26310 100 59 -58.1 10.2 | 92 50 -50.3 1.8 63 16 27127 95 60 -59.8 5.2 | 86 52 -51.9 -3.2 Wind Parameters Mean winds (0-6000m): 107.2 at 15.4 knts Storm direction: 137.2 at 11.5 knts Shear (0-3000m) pos: 1.9 neg: 2.9 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): 81.3 deg Storm rel helicity (0-3000m) pos: 63.3 neg: -28.7 tot: 34.6 m^2/s^2 ave: 11.5 10^-3 m/s^2 rel: 0.23 Storm rel vorticity (0-3000m) horiz: 8.9 stream: 2.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.28 Bulk Shear: 18.21 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 68 19 31 18| 0.0 22.6 22.6| 39.3 0.0 39.3 78.7 0.48| 29.6 14.3 1000 76 20 41 18| 3.8 11.3 15.1| 56.8 -8.4 48.4 48.4 0.39| 19.9 7.7 1500 78 18 39 16| 2.5 5.8 8.3| 56.8 -28.7 28.2 18.8 0.20| 15.8 3.2 2000 79 17 36 14| 2.5 4.3 6.8| 57.6 -28.7 28.9 14.4 0.20| 12.5 2.4 2500 82 16 36 13| 2.1 3.5 5.6| 62.5 -28.7 33.9 13.6 0.23| 10.5 2.4 3000 85 15 37 12| 1.9 2.9 4.8| 63.3 -28.7 34.6 11.5 0.23| 8.9 2.1 4000 92 15 42 11| 2.0 2.2 4.2| 70.6 -28.7 41.9 10.5 0.30| 7.3 2.2 5000 99 15 50 9| 1.8 1.8 3.6| 77.2 -30.8 46.4 9.3 0.30| 6.7 2.0 6000 107 15 60 8| 1.7 1.5 3.2| 89.6 -31.3 58.3 9.7 0.36| 7.2 2.6 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251006.12.gif