UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042612.upa.cvt Date: 1200Z 26 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 26 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 1002 85 23.0 23.0 100 0.0 23.0 330 6 296.0 299.2 296.1 347.6 17.93 1 1000 96 23.2 22.6 96 0.6 22.8 290 7 296.4 299.5 296.0 346.9 17.52 2 942 620 24.0 17.0 65 7.0 19.2 332 17 302.3 304.7 294.5 340.8 13.05 3 925 780 23.8 16.8 65 7.0 19.0 355 15 303.6 306.1 295.0 342.6 13.12 4 867 1344 19.2 19.2 100 0.0 19.2 17 14 304.5 307.6 297.4 353.3 16.36 5 850 1515 18.2 17.6 96 0.6 17.8 20 15 305.2 308.0 296.7 350.3 15.07 6 700 3156 9.4 7.5 88 1.9 8.2 60 7 312.9 314.7 294.7 341.8 9.34 7 682 3373 8.8 5.5 80 3.3 6.8 50 5 314.6 316.2 294.4 340.6 8.34 8 601 4410 1.8 1.8 100 0.0 1.8 58 12 318.1 319.5 294.6 341.2 7.28 9 538 5298 -2.7 -3.7 93 1.0 -3.2 80 15 322.9 324.0 294.4 340.6 5.42 10 527 5463 -2.7 -8.7 63 6.0 -5.4 80 16 324.8 325.6 293.7 337.4 3.76 11 503 5833 -4.3 -10.3 63 6.0 -7.0 80 18 327.2 327.9 294.0 338.9 3.47 12 500 5880 -4.5 -10.5 63 6.0 -7.1 80 18 327.6 328.2 294.1 339.2 3.44 13 449 6717 -8.9 -11.6 81 2.7 -10.1 95 17 332.3 333.0 295.3 344.3 3.51 14 400 7600 -14.7 -16.2 88 1.5 -15.3 110 15 335.9 336.4 295.6 345.4 2.70 15 362 8350 -19.9 -20.6 94 0.7 -20.1 105 13 338.7 339.1 295.7 346.0 2.05 16 309 9508 -27.9 -31.0 75 3.1 -28.5 54 9 343.1 343.3 295.9 346.7 0.93 17 300 9720 -29.3 -32.6 73 3.3 -29.9 45 8 344.1 344.3 296.0 347.2 0.82 18 273 10384 -34.5 -37.4 75 2.9 -34.9 16 5 346.0 346.1 296.2 348.2 0.56 19 250 10990 -39.7 -43.0 71 3.3 -40.0 330 4 347.0 347.1 296.3 348.4 0.34 20 246 11101 -40.7 -43.6 74 2.9 -41.0 334 4 347.2 347.2 296.3 348.5 0.33 21 212 12099 -49.1 -60.1 27 11.0 -49.5 11 5 349.2 349.2 296.5 349.4 0.05 22 200 12480 -52.7 -60.7 37 8.0 -52.9 25 6 349.3 349.3 296.5 349.5 0.05 23 173 13399 -60.9 -69.9 30 9.0 -61.0 13 10 350.6 350.6 296.8 350.6 0.02 24 172 13435 -61.3 -71.3 25 10.0 -61.4 13 10 350.5 350.5 296.7 350.5 0.01 25 151 14230 -68.3 -76.3 31 8.0 -68.4 357 15 351.8 351.8 297.0 351.8 0.01 26 150 14270 -68.5 -76.5 31 8.0 -68.5 355 16 352.1 352.1 297.1 352.1 0.01 27 127 15245 -75.7 -80.1 50 4.4 -75.7 10 14 356.3 356.3 298.0 356.3 0.01 28 103 16426 -83.7 -89.7 34 6.0 -83.7 110 25 362.9 362.9 299.2 362.9 0.00 29 100 16590 -83.1 -90.1 29 7.0 -83.1 95 25 367.2 367.2 300.1 367.2 0.00 30 94 16943 -75.3 -86.3 16 11.0 -75.3 89 29 389.1 389.1 303.6 389.1 0.00 31 81 17800 -79.5 -89.5 18 10.0 -79.5 9 6 397.4 397.4 304.9 397.4 0.00 32 72 18475 -76.3 -89.3 11 13.0 -76.3 327 9 417.8 417.8 307.4 417.8 0.00 33 70 18640 -72.1 -89.1 6 17.0 -72.2 275 28 430.1 430.1 308.9 430.1 0.00 34 68 18812 -69.9 -88.9 5 19.0 -70.0 278 26 438.5 438.5 309.7 438.5 0.00 35 57 19857 -72.3 -90.3 5 18.0 -72.4 282 44 455.7 455.7 311.4 455.7 0.00 36 50 20640 -66.1 -89.1 3 23.0 -66.4 275 29 487.7 487.7 314.1 487.7 0.00 37 46 21146 -64.5 -88.5 2 24.0 -64.8 268 27 503.3 503.4 315.2 503.4 0.00 38 43 21554 -67.7 -89.7 3 22.0 -67.9 244 18 505.3 505.3 315.3 505.3 0.00 39 41 21843 -62.7 -89.7 1 27.0 -63.2 244 14 524.7 524.7 316.6 524.7 0.00 40 34 23007 -58.1 -87.1 1 29.0 -59.1 282 28 565.6 565.6 318.9 565.7 0.01 41 30 23790 -60.5 -88.5 1 28.0 -61.4 250 15 579.7 579.7 319.6 579.7 0.01 42 29 24001 -60.5 -88.5 1 28.0 -61.4 245 15 585.4 585.4 319.9 585.4 0.01 43 26 24686 -57.7 -87.7 1 30.0 -59.0 177 12 611.9 611.9 321.2 611.9 0.01 44 25 24932 -59.5 -87.5 1 28.0 -60.6 133 13 613.6 613.6 321.2 613.7 0.01 45 24 25189 -56.7 -87.7 1 31.0 -58.3 89 14 629.0 629.0 321.9 629.0 0.01 46 22 25739 -58.7 -87.7 1 29.0 -60.1 76 21 638.8 638.8 322.3 638.9 0.01 TRP 103 16426 -83.7 -89.7 34 6.0 -83.7 110 25 362.9 362.9 299.2 362.9 0.00 WND Sounding variables and indices 1000-500 mb thick: 5784.00 m Freezing level: 575.80 mb = 4765.09 m = 15633.32 ft Wetbulb zero: 578.51 mb = 4715.61 m = 15470.98 ft Precipitable water: 2.36 inches Sfc-500 mean rel hum: 87.05 % Est. max temperature: 32.16 C = 89.88 F Sfc-Lift cond lev (LCL): 1002.42 mb = 85.00 m = 278.87 ft T: 23.00 C 700-500 lapse rate: 5.10 C/km ThetaE index: 12.72 C Layer 850.0- 601.0 mb Conv cond level (CCL): 818.95 mb = 1829.57 m = 6002.47 ft Mean mixing ratio: 14.57 g/kg Conv temperature: 33.72 C = 92.69 F Cap Strength: 3.13 C Lifted Index: 0.75 C Risk: Showers probable Lifted Index @300 mb: 2.56 C Lifted Index @700 mb: 0.59 C Showalter Index: -1.65 C Risk: Thunderstorms probable Total Totals Index: 44.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.70 C Cross Totals Index: 22.10 C K Index: 38.40 Risk: > 80 % chance of thunderstorms Sweat Index: 259.20 Risk: None Energy Index: -2.24 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 65.98 J/kg Max Up Vert Vel: 11.49 m/s Conv Inhibition (B-): 159.46 J/kg Cap Strength: 3.13 C Lift Cond Lev (LCL): 888.78 mb = 1128.03 m = 3700.84 ft Lev Free Conv (LFC): 633.78 mb = 3974.02 m = 13037.98 ft Equ Level (EL): 523.78 mb = 5511.54 m = 18082.26 ft B at Equ Level: 64.86 J/kg Max Parcel Lev (MPL): 413.78 mb = 7341.38 m = 24085.61 ft Wind level data Storm motion: 69 at 9 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 1002 85 330 6 3.0 -5.2 | 279 12 11.8 -1.8 1 1000 96 290 7 6.6 -2.4 | 266 15 15.4 1.0 2 976 305 300 15 13.0 -7.5 | 281 22 21.8 -4.1 3 943 610 330 17 8.5 -14.7 | 303 21 17.3 -11.3 4 925 780 355 15 1.3 -14.9 | 319 15 10.1 -11.5 5 911 914 5 15 -1.3 -14.9 | 327 14 7.5 -11.5 6 879 1219 15 14 -3.6 -13.5 | 333 11 5.2 -10.1 7 850 1515 20 15 -5.1 -14.1 | 341 11 3.7 -10.7 8 819 1829 25 14 -5.9 -12.7 | 343 10 2.9 -9.3 9 790 2134 5 12 -1.0 -12.0 | 318 12 7.7 -8.5 10 762 2438 10 11 -1.9 -10.8 | 317 10 6.9 -7.4 11 700 3156 60 7 -6.1 -3.5 | 272 3 2.7 -0.1 12 683 3353 50 5 -3.8 -3.2 | 268 5 5.0 0.2 13 610 4267 55 12 -9.8 -6.9 | 17 4 -1.0 -3.5 14 545 5182 80 15 -14.8 -2.6 | 98 6 -6.0 0.8 15 500 5880 80 18 -17.7 -3.1 | 92 9 -8.9 0.3 16 486 6096 80 17 -16.7 -3.0 | 93 8 -7.9 0.5 17 449 6706 95 17 -16.9 1.5 | 121 10 -8.1 4.9 18 432 7010 80 21 -20.7 -3.6 | 89 12 -11.9 -0.2 19 400 7600 110 15 -14.1 5.1 | 148 10 -5.3 8.6 20 383 7925 115 15 -13.6 6.3 | 154 11 -4.8 9.8 21 367 8230 110 13 -12.2 4.4 | 157 9 -3.4 7.9 22 300 9720 45 8 -5.7 -5.7 | 305 4 3.1 -2.2 23 251 10973 350 2 0.3 -2.0 | 261 9 9.1 1.5 24 250 10990 330 4 2.0 -3.5 | 270 11 10.8 -0.0 25 200 12480 25 6 -2.5 -5.4 | 288 7 6.3 -2.0 26 156 14021 5 12 -1.0 -12.0 | 318 12 7.7 -8.5 27 150 14270 355 16 1.4 -15.9 | 321 16 10.2 -12.5 28 149 14326 345 13 3.4 -12.6 | 307 15 12.2 -9.1 29 141 14630 20 18 -6.2 -16.9 | 349 14 2.6 -13.5 30 127 15240 10 14 -2.4 -13.8 | 328 12 6.4 -10.4 31 120 15545 50 11 -8.4 -7.1 | 354 4 0.4 -3.6 32 114 15850 105 13 -12.6 3.4 | 151 8 -3.8 6.8 33 103 16426 110 25 -23.5 8.6 | 129 19 -14.7 12.0 34 102 16459 120 27 -23.4 13.5 | 139 22 -14.6 16.9 35 100 16590 95 25 -24.9 2.2 | 109 17 -16.1 5.6 36 97 16764 95 25 -24.9 2.2 | 109 17 -16.1 5.6 37 92 17069 85 31 -30.9 -2.7 | 92 22 -22.1 0.7 38 87 17374 35 4 -2.3 -3.3 | 269 7 6.5 0.2 39 71 18593 320 10 6.4 -7.7 | 286 16 15.2 -4.2 40 70 18640 275 28 27.9 -2.4 | 268 37 36.7 1.0 41 67 18898 280 25 24.6 -4.3 | 272 33 33.4 -0.9 42 60 19507 285 51 49.3 -13.2 | 280 59 58.1 -9.8 43 50 20640 275 29 28.9 -2.5 | 269 38 37.7 0.9 44 47 21031 275 29 28.9 -2.5 | 269 38 37.7 0.9 45 43 21641 240 17 14.7 8.5 | 243 26 23.5 11.9 46 40 21946 245 13 11.8 5.5 | 247 22 20.6 8.9 47 39 22250 305 6 4.9 -3.4 | 270 14 13.7 -0.0 48 37 22555 310 18 13.8 -11.6 | 290 24 22.6 -8.1 49 35 22860 290 30 28.2 -10.3 | 280 38 37.0 -6.8 50 32 23470 260 22 21.7 3.8 | 257 31 30.5 7.2 51 30 23790 250 15 14.1 5.1 | 250 24 22.9 8.6 52 28 24079 240 15 13.0 7.5 | 243 24 21.8 10.9 53 26 24384 175 12 -1.0 12.0 | 207 17 7.7 15.4 54 24 24689 90 14 -14.0 0.0 | 123 6 -5.2 3.4 55 22 24994 75 18 -17.4 -4.7 | 82 9 -8.6 -1.2 56 21 25298 80 30 -29.5 -5.2 | 85 21 -20.8 -1.8 57 18 25908 100 28 -27.6 4.9 | 114 21 -18.8 8.3 Wind Parameters Mean winds (0-6000m): 38.7 at 12.6 knts Storm direction: 68.7 at 9.4 knts Shear (0-3000m) pos: 3.5 neg: 2.1 tot: 5.6 10-3/s Storm rel Dir Shear (0-3000m): 8.0 deg Storm rel helicity (0-3000m) pos: 104.2 neg: -21.2 tot: 83.0 m^2/s^2 ave: 27.7 10^-3 m/s^2 rel: 0.27 Storm rel vorticity (0-3000m) horiz: 8.4 stream: 2.3 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 1.45 Bulk Shear: 45.48 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 ------------------------------------------------------------------------------- 500 308 14 284 20| 0.0 11.2 11.2| 58.7 -5.9 52.8 105.5 0.48| 19.4 9.2 1000 333 14 302 18| 6.0 5.6 11.6| 96.1 -5.9 90.2 90.2 0.56| 15.9 9.0 1500 348 14 313 16| 4.9 3.7 8.6|102.9 -5.9 96.9 64.6 0.58| 11.6 6.7 2000 357 14 319 14| 3.7 3.1 6.8|103.4 -16.7 86.7 43.4 0.41| 10.0 4.1 2500 359 14 319 14| 3.4 2.5 5.9|104.2 -19.0 85.2 34.1 0.36| 8.8 3.2 3000 3 13 319 12| 3.5 2.1 5.6|104.2 -21.2 83.0 27.7 0.27| 8.4 2.3 4000 12 11 320 10| 2.9 1.6 4.6|107.9 -21.9 86.0 21.5 0.30| 7.3 2.2 5000 25 12 332 8| 3.0 1.3 4.3|114.7 -21.9 92.7 18.5 0.37| 6.6 2.4 6000 39 13 352 6| 2.7 1.1 3.8|116.0 -23.4 92.6 15.4 0.34| 5.9 2.0 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250426.12.gif