UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102200.upa.cvt Date: 0000Z 22 OCT 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 22 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 ------------------------------------------------------------------------------- 0 1000 73 120 2 SFC 999 85 25.0 22.0 83 3.0 22.9 120 2 298.2 301.3 296.0 347.4 16.89 2 990 165 27.0 23.9 83 3.1 24.7 173 2 301.0 304.5 298.2 357.6 19.19 3 958 455 25.6 20.6 74 5.0 22.0 184 2 302.4 305.4 296.7 350.2 16.15 4 925 762 23.6 20.4 82 3.2 21.3 105 3 303.4 306.5 297.2 352.5 16.53 5 850 1498 19.4 16.2 82 3.2 17.2 115 8 306.5 309.0 296.1 347.8 13.76 6 707 3060 9.2 8.8 97 0.4 8.9 117 7 311.8 313.7 295.0 342.9 10.11 7 700 3143 8.8 7.9 94 0.9 8.2 120 7 312.2 314.1 294.8 341.9 9.60 8 621 4129 5.0 1.2 76 3.8 2.9 111 6 318.8 320.1 294.4 340.3 6.74 9 532 5378 -1.5 -6.5 69 5.0 -3.9 151 5 325.4 326.3 294.3 340.1 4.42 10 523 5514 -2.5 -5.4 80 2.9 -4.0 156 5 325.8 326.7 294.8 342.0 4.90 11 508 5745 -3.7 -10.7 58 7.0 -6.8 165 5 327.0 327.7 293.9 338.3 3.33 12 501 5854 -4.3 -7.2 80 2.9 -5.7 169 5 327.6 328.5 294.9 342.5 4.45 13 500 5870 -4.3 -7.8 77 3.5 -6.0 170 5 327.8 328.6 294.8 342.1 4.26 14 492 5997 -4.7 -17.7 35 13.0 -9.5 173 6 328.8 329.2 293.2 335.6 1.93 15 481 6175 -5.9 -22.9 25 17.0 -11.3 174 7 329.5 329.7 292.8 334.0 1.26 16 472 6324 -6.5 -23.5 25 17.0 -11.8 171 8 330.5 330.8 293.0 334.9 1.22 17 461 6508 -7.9 -16.9 48 9.0 -11.2 168 8 331.0 331.5 294.0 338.7 2.21 18 455 6610 -8.3 -22.3 31 14.0 -12.8 167 8 331.7 332.0 293.5 336.8 1.40 19 441 6853 -10.1 -14.4 71 4.3 -11.8 163 9 332.5 333.0 294.8 342.3 2.84 20 413 7357 -13.3 -19.3 61 6.0 -15.3 156 10 334.6 335.0 294.7 341.8 2.01 21 405 7506 -14.3 -28.3 29 14.0 -17.9 158 9 335.2 335.4 294.0 338.6 0.92 22 400 7600 -15.1 -26.1 39 11.0 -18.1 160 9 335.4 335.6 294.2 339.5 1.14 23 395 7695 -15.9 -20.3 69 4.4 -17.3 151 10 335.5 335.9 294.9 342.4 1.93 24 375 8083 -18.7 -27.7 45 9.0 -21.0 157 8 336.8 337.1 294.5 340.7 1.05 25 373 8123 -18.7 -22.9 69 4.2 -19.9 158 8 337.4 337.7 295.1 343.2 1.63 26 362 8344 -20.3 -21.0 94 0.7 -20.5 155 7 338.1 338.5 295.6 345.2 1.98 27 348 8635 -20.9 -27.9 53 7.0 -22.6 141 6 341.1 341.4 295.6 345.3 1.11 28 300 9710 -29.7 -34.2 65 4.5 -30.4 90 5 343.5 343.7 295.8 346.2 0.70 29 297 9781 -30.3 -35.3 62 5.0 -31.1 85 5 343.7 343.8 295.8 346.1 0.64 30 268 10502 -36.3 -37.3 90 1.0 -36.4 31 6 345.2 345.3 296.1 347.4 0.58 31 267 10528 -36.5 -37.5 90 1.0 -36.6 29 6 345.2 345.4 296.1 347.5 0.57 32 250 10980 -39.7 -45.7 53 6.0 -40.2 355 6 347.0 347.1 296.2 348.1 0.26 33 249 11007 -39.7 -46.7 47 7.0 -40.3 354 6 347.4 347.5 296.3 348.4 0.23 34 230 11547 -44.1 -48.0 65 3.9 -44.4 340 8 348.7 348.8 296.5 349.6 0.22 35 200 12470 -52.1 -58.1 48 6.0 -52.3 315 12 350.3 350.3 296.8 350.6 0.07 36 194 12666 -53.7 -61.7 37 8.0 -53.9 314 12 350.8 350.8 296.8 351.0 0.05 37 162 13794 -63.7 -67.5 60 3.8 -63.7 308 13 352.5 352.5 297.2 352.6 0.03 38 150 14260 -67.7 -71.0 63 3.3 -67.7 290 12 353.5 353.5 297.4 353.5 0.02 39 144 14505 -69.9 -71.8 76 1.9 -69.9 275 13 353.8 353.8 297.4 353.9 0.02 40 127 15246 -75.5 -80.3 47 4.8 -75.5 240 15 356.6 356.6 298.0 356.6 0.00 41 108 16181 -78.1 -86.1 26 8.0 -78.1 173 10 368.6 368.6 300.3 368.6 0.00 42 101 16563 -79.5 -86.5 30 7.0 -79.5 240 3 373.1 373.1 301.1 373.1 0.00 43 100 16620 -79.3 -85.3 37 6.0 -79.3 240 3 374.5 374.5 301.4 374.5 0.00 44 79 17955 -77.7 -85.7 26 8.0 -77.7 323 43 403.9 403.9 305.7 404.0 0.00 45 70 18640 -80.1 -87.1 30 7.0 -80.1 285 41 413.0 413.0 306.9 413.0 0.00 46 69 18722 -80.3 -87.3 30 7.0 -80.3 285 40 414.3 414.3 307.0 414.3 0.00 47 66 18975 -78.9 -87.9 22 9.0 -78.9 285 39 422.6 422.6 308.0 422.7 0.00 48 61 19435 -70.7 -87.7 6 17.0 -70.8 281 19 450.5 450.5 310.9 450.5 0.00 49 52 20378 -73.7 -90.7 6 17.0 -73.8 148 21 464.6 464.6 312.2 464.6 0.00 50 50 20610 -69.7 -89.7 4 20.0 -69.9 100 32 479.2 479.2 313.4 479.3 0.00 51 45 21240 -69.9 -90.9 3 21.0 -70.1 89 41 493.4 493.4 314.5 493.4 0.00 52 38 22254 -67.7 -91.7 2 24.0 -68.0 95 50 523.5 523.5 316.5 523.5 0.00 53 37 22417 -63.5 -90.5 1 27.0 -64.0 93 51 538.3 538.3 317.4 538.3 0.00 54 35 22758 -64.3 -90.3 2 26.0 -64.8 88 53 544.8 544.8 317.8 544.8 0.00 55 33 23123 -59.9 -88.9 1 29.0 -60.7 84 54 565.7 565.7 318.9 565.7 0.00 56 30 23720 -59.3 -88.9 1 29.6 -60.3 85 63 582.9 582.9 319.8 583.0 0.00 57 28 24155 -58.9 -88.9 1 30.0 -60.0 86 62 595.7 595.7 320.4 595.7 0.01 58 20 26330 -48.3 -84.3 1 36.0 -52.3 100 42 688.3 688.3 324.0 688.5 0.02 59 19 26668 -48.3 -84.3 1 36.0 -52.5 100 42 698.5 698.5 324.4 698.6 0.02 TRP 101 16563 -79.5 -86.5 30 7.0 -79.5 240 3 373.1 373.1 301.1 373.1 0.00 WND 30 23720 -59.3 -88.9 1 29.6 -60.3 85 63 582.9 582.9 319.8 583.0 0.00 Sounding variables and indices 1000-500 mb thick: 5797.00 m Freezing level: 552.54 mb = 5089.56 m = 16697.83 ft Wetbulb zero: 583.37 mb = 4633.45 m = 15201.41 ft Precipitable water: 2.29 inches Sfc-500 mean rel hum: 81.32 % Est. max temperature: 33.27 C = 91.88 F Sfc-Lift cond lev (LCL): 956.62 mb = 467.20 m = 1532.80 ft T: 25.52 C 700-500 lapse rate: 4.80 C/km ThetaE index: 12.45 C Layer 850.0- 523.0 mb Conv cond level (CCL): 848.60 mb = 1511.94 m = 4960.38 ft Mean mixing ratio: 16.82 g/kg Conv temperature: 33.28 C = 91.90 F Cap Strength: 1.89 C Lifted Index: -2.21 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.59 C Lifted Index @700 mb: -2.41 C Showalter Index: -0.57 C Risk: Thunderstorms probable Total Totals Index: 44.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 20.50 C K Index: 39.00 Risk: > 80 % chance of thunderstorms Sweat Index: 215.40 Risk: None Energy Index: -1.19 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 862.80 J/kg Max Up Vert Vel: 41.54 m/s Conv Inhibition (B-): 47.88 J/kg Cap Strength: 1.89 C Lift Cond Lev (LCL): 898.19 mb = 1018.05 m = 3340.00 ft Lev Free Conv (LFC): 803.19 mb = 1978.44 m = 6490.87 ft Equ Level (EL): 163.19 mb = 13748.25 m = 45105.25 ft B at Equ Level: 859.49 J/kg Max Parcel Lev (MPL): 93.19 mb = 17019.82 m = 55838.62 ft Wind level data Storm motion: 150 at 5 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 ---------------------------------------------------------- 0 999 85 120 2 -1.7 1.0 | 349 3 0.6 -3.0 1 974 305 265 2 2.0 0.2 | 312 6 4.3 -3.8 2 941 610 100 3 -3.0 0.5 | 11 4 -0.6 -3.5 3 925 762 105 3 -2.9 0.8 | 10 3 -0.6 -3.2 4 909 914 135 5 -3.5 3.5 | 70 1 -1.2 -0.4 5 850 1498 115 8 -7.3 3.4 | 83 5 -4.9 -0.6 6 789 2134 105 8 -7.7 2.1 | 71 6 -5.4 -1.9 7 761 2438 95 9 -9.0 0.8 | 64 7 -6.7 -3.2 8 700 3143 120 7 -6.1 3.5 | 83 4 -3.8 -0.5 9 609 4267 110 6 -5.6 2.1 | 60 4 -3.3 -1.9 10 500 5870 170 5 -0.9 4.9 | 237 2 1.4 0.9 11 486 6096 175 7 -0.6 7.0 | 210 3 1.7 3.0 12 415 7315 155 10 -4.2 9.1 | 159 5 -1.9 5.1 13 400 7600 160 9 -3.1 8.5 | 170 5 -0.8 4.5 14 399 7620 150 10 -5.0 8.7 | 150 5 -2.7 4.7 15 367 8230 160 7 -2.4 6.6 | 178 3 -0.1 2.6 16 300 9710 90 5 -5.0 0.0 | 34 5 -2.7 -4.0 17 250 10980 355 6 0.5 -6.0 | 344 10 2.8 -10.0 18 200 12470 315 12 8.5 -8.5 | 319 16 10.8 -12.5 19 199 12497 315 12 8.5 -8.5 | 319 16 10.8 -12.5 20 164 13716 310 13 10.0 -8.4 | 315 17 12.3 -12.3 21 150 14260 290 12 11.3 -4.1 | 301 16 13.6 -8.1 22 148 14326 295 12 10.9 -5.1 | 304 16 13.2 -9.1 23 141 14630 260 13 12.8 2.3 | 277 15 15.1 -1.7 24 127 15240 240 15 13.0 7.5 | 257 16 15.3 3.5 25 120 15545 255 13 12.6 3.4 | 272 15 14.9 -0.6 26 114 15850 190 11 1.9 10.8 | 212 8 4.2 6.8 27 108 16154 170 10 -1.7 9.8 | 186 6 0.6 5.9 28 101 16563 240 3 2.6 1.5 | 297 6 4.9 -2.5 29 100 16620 240 3 2.6 1.5 | 297 6 4.9 -2.5 30 97 16764 240 3 2.6 1.5 | 297 6 4.9 -2.5 31 92 17069 280 11 10.8 -1.9 | 294 14 13.1 -5.9 32 88 17374 285 13 12.6 -3.4 | 296 17 14.9 -7.3 33 79 17983 325 44 25.2 -36.0 | 325 49 27.5 -40.0 34 71 18593 285 41 39.6 -10.6 | 289 44 41.9 -14.6 35 70 18640 285 41 39.6 -10.6 | 289 44 41.9 -14.6 36 64 19202 285 37 35.7 -9.6 | 290 40 38.0 -13.6 37 60 19507 280 15 14.8 -2.6 | 291 18 17.1 -6.6 38 57 19812 185 10 0.9 10.0 | 208 7 3.2 6.0 39 52 20422 145 22 -12.6 18.0 | 144 17 -10.3 14.0 40 50 20610 100 32 -31.5 5.6 | 93 29 -29.2 1.6 41 49 20726 105 31 -29.9 8.0 | 98 28 -27.6 4.0 42 47 21031 100 43 -42.3 7.5 | 95 40 -40.0 3.5 43 44 21336 85 40 -39.8 -3.5 | 79 38 -37.5 -7.5 44 38 22250 95 50 -49.8 4.4 | 90 48 -47.5 0.4 45 31 23470 80 56 -55.1 -9.7 | 75 55 -52.8 -13.7 46 30 23720 85 63 -62.8 -5.5 | 81 61 -60.5 -9.5 47 28 24079 85 63 -62.8 -5.5 | 81 61 -60.5 -9.5 48 20 26330 100 42 -41.4 7.3 | 95 39 -39.1 3.3 49 17 26822 100 42 -41.4 7.3 | 95 39 -39.1 3.3 Wind Parameters Mean winds (0-6000m): 119.9 at 6.1 knts Storm direction: 149.9 at 4.6 knts Shear (0-3000m) pos: 0.8 neg: 0.9 tot: 1.7 10-3/s Storm rel Dir Shear (0-3000m): 92.1 deg Storm rel helicity (0-3000m) pos: 5.8 neg: -5.3 tot: 0.5 m^2/s^2 ave: 0.2 10^-3 m/s^2 rel: 0.12 Storm rel vorticity (0-3000m) horiz: 4.1 stream: 0.5 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 269.03 Bulk Shear: 3.21 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 ------------------------------------------------------------------------------- 500 168 2 314 3| 0.0 1.0 1.0| 1.9 -2.5 -0.6 -1.3 0.02| 10.7 0.2 1000 126 3 7 2| 1.6 0.5 2.1| 3.4 -2.5 0.9 0.9 0.21| 7.6 1.6 1500 122 5 43 2| 1.1 1.3 2.4| 3.5 -2.9 0.6 0.4 0.16| 6.1 1.0 2000 117 5 58 3| 0.8 1.1 1.9| 3.5 -4.2 -0.7 -0.4 0.10| 4.8 0.5 2500 111 6 62 4| 0.7 1.1 1.7| 4.1 -5.3 -1.3 -0.5 0.08| 4.3 0.3 3000 111 6 64 4| 0.8 0.9 1.7| 5.8 -5.3 0.5 0.2 0.12| 4.1 0.5 4000 112 6 67 4| 0.6 0.7 1.2| 5.9 -6.6 -0.7 -0.2 0.06| 3.3 0.2 5000 114 6 68 4| 0.7 0.5 1.2| 6.9 -6.8 0.1 0.0 0.11| 2.9 0.3 6000 120 6 73 3| 0.9 0.5 1.3| 7.4 -7.4 0.0 0.0 0.12| 2.9 0.4 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251022.00.gif