UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 18 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 1002 85 23.0 21.0 89 2.0 21.6 60 2 296.0 298.8 294.7 341.5 15.81 1 1000 94 23.0 21.3 90 1.7 21.8 15 2 296.1 299.1 295.0 342.7 16.15 2 987 209 23.0 21.8 93 1.2 22.2 297.3 300.3 295.8 346.2 16.89 3 964 415 24.6 18.6 69 6.0 20.4 300.9 303.5 294.9 342.4 14.13 4 934 693 24.0 18.0 69 6.0 19.8 303.0 305.6 295.4 344.6 14.04 5 925 778 23.4 19.0 76 4.4 20.3 85 8 303.2 306.0 296.2 348.1 15.12 6 850 1513 18.6 15.3 81 3.3 16.4 90 13 305.6 308.0 295.4 344.5 12.97 7 731 2794 10.8 8.9 88 1.9 9.6 310.6 312.4 294.5 340.7 9.84 8 700 3156 9.6 5.4 75 4.2 7.1 55 16 313.1 314.7 293.9 338.2 8.06 9 665 3581 7.4 -0.6 57 8.0 3.1 315.3 316.3 292.4 332.7 5.51 10 612 4262 3.8 -1.2 70 5.0 1.1 318.7 319.8 293.6 337.1 5.73 11 536 5330 -2.5 -4.3 87 1.8 -3.4 323.5 324.5 294.4 340.5 5.20 12 500 5880 -5.9 -8.5 82 2.6 -7.1 80 18 325.8 326.6 294.1 339.3 4.03 13 476 6263 -8.3 -13.3 67 5.0 -10.3 327.5 328.1 293.6 337.3 2.88 14 467 6410 -9.3 -11.3 85 2.0 -10.1 328.0 328.7 294.3 339.7 3.45 15 459 6543 -9.9 -14.9 67 5.0 -11.8 328.9 329.4 293.8 337.9 2.62 16 428 7078 -13.5 -13.5 100 0.0 -13.5 331.0 331.6 294.7 341.8 3.16 17 425 7131 -14.1 -15.4 90 1.3 -14.6 330.9 331.4 294.4 340.3 2.72 18 421 7203 -13.5 -22.5 47 9.0 -16.2 332.5 332.8 293.8 337.9 1.49 19 412 7367 -14.3 -16.0 87 1.7 -14.9 333.6 334.1 295.0 342.9 2.67 20 400 7590 -15.1 -20.1 66 5.0 -16.7 85 12 335.4 335.8 294.8 342.3 1.94 21 386 7858 -17.1 -18.8 87 1.7 -17.7 336.2 336.6 295.3 344.1 2.25 22 376 8054 -18.1 -22.6 68 4.5 -19.4 337.4 337.7 295.1 343.4 1.66 23 369 8194 -18.9 -22.3 74 3.4 -19.9 338.1 338.5 295.4 344.4 1.73 24 320 9238 -26.7 -32.7 57 6.0 -27.8 341.4 341.6 295.3 344.3 0.76 25 300 9700 -30.3 -32.3 83 2.0 -30.7 85 14 342.7 342.9 295.7 345.9 0.85 26 276 10287 -35.1 -36.6 86 1.5 -35.3 344.0 344.1 295.8 346.3 0.60 27 265 10570 -37.1 -39.7 77 2.6 -37.4 345.1 345.2 296.0 346.9 0.46 28 250 10970 -40.5 -42.4 82 1.9 -40.7 105 13 345.9 345.9 296.0 347.3 0.37 29 242 11191 -42.3 -44.9 76 2.6 -42.5 346.4 346.4 296.1 347.6 0.29 30 217 11918 -48.1 -53.1 56 5.0 -48.3 348.4 348.4 296.4 348.9 0.13 31 211 12102 -49.9 -53.3 67 3.4 -50.0 348.4 348.4 296.4 348.9 0.13 32 200 12450 -52.7 -57.0 60 4.3 -52.8 115 17 349.3 349.3 296.5 349.7 0.09 33 151 14200 -68.3 -72.2 57 3.9 -68.3 351.8 351.8 297.0 351.8 0.01 34 150 14240 -68.7 -72.4 59 3.7 -68.7 110 21 351.7 351.7 297.0 351.8 0.01 35 136 14823 -72.1 -78.1 40 6.0 -72.1 355.7 355.7 297.8 355.8 0.01 36 114 15843 -80.1 -83.5 57 3.4 -80.1 359.2 359.2 298.5 359.3 0.00 37 101 16524 -82.3 -86.4 49 4.1 -82.3 367.7 367.7 300.1 367.7 0.00 38 100 16580 -82.5 -86.5 50 4.0 -82.5 285 9 368.3 368.3 300.2 368.3 0.00 39 95 16867 -81.9 -86.1 49 4.2 -81.9 374.9 374.9 301.4 375.0 0.00 40 88 17304 -75.9 -83.9 27 8.0 -75.9 395.3 395.3 304.6 395.3 0.00 41 84 17572 -76.9 -85.9 22 9.0 -76.9 398.5 398.5 305.0 398.5 0.00 42 77 18075 -75.3 -86.3 16 11.0 -75.3 411.9 411.9 306.7 411.9 0.00 43 71 18555 -67.9 -85.9 6 18.0 -68.1 437.3 437.3 309.6 437.4 0.00 44 70 18640 -68.5 -86.5 6 18.0 -68.7 270 29 437.8 437.8 309.7 437.9 0.00 45 65 19078 -71.3 -88.3 6 17.0 -71.4 441.1 441.1 310.0 441.1 0.00 46 61 19453 -69.7 -88.7 5 19.0 -69.8 452.7 452.7 311.1 452.8 0.00 47 50 20630 -70.3 -90.3 4 20.0 -70.5 75 32 477.8 477.8 313.2 477.8 0.00 48 41 21799 -73.7 -91.7 5 18.0 -73.8 497.3 497.3 314.8 497.3 0.00 49 34 22915 -65.8 -90.7 2 24.9 -66.2 90 63 545.5 545.5 317.8 545.5 0.00 50 33 23097 -64.5 -90.5 2 26.0 -65.0 553.5 553.5 318.3 553.5 0.00 51 31 23479 -64.7 -90.7 2 26.0 -65.2 563.0 563.0 318.8 563.0 0.00 52 10 30092 -82.5 -86.5 50 4.0 -82.6 275 8 711.6 711.6 324.8 711.8 0.02 TRP 10 -82.5 -86.5 50 4.0 -82.6 275 8 711.6 711.6 324.8 711.8 0.02 WND 34 22915 -65.8 -90.7 2 24.9 -66.2 90 63 545.5 545.5 317.8 545.5 0.00 Sounding variables and indices 1000-500 mb thick: 5786.00 m Freezing level: 566.16 mb = 4906.47 m = 16097.13 ft Wetbulb zero: 593.16 mb = 4514.21 m = 14810.22 ft Precipitable water: 2.15 inches Sfc-500 mean rel hum: 77.79 % Est. max temperature: 32.59 C = 90.66 F Sfc-Lift cond lev (LCL): 973.45 mb = 329.76 m = 1081.88 ft T: 23.94 C 700-500 lapse rate: 5.69 C/km ThetaE index: 15.32 C Layer 850.0- 612.0 mb Conv cond level (CCL): 824.43 mb = 1772.37 m = 5814.81 ft Mean mixing ratio: 14.96 g/kg Conv temperature: 33.67 C = 92.60 F Cap Strength: 3.09 C Lifted Index: -1.12 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.85 C Lifted Index @700 mb: 0.38 C Showalter Index: -0.88 C Risk: Thunderstorms probable Total Totals Index: 45.70 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.50 C Cross Totals Index: 21.20 C K Index: 35.60 Risk: > 80 % chance of thunderstorms Sweat Index: 227.60 Risk: None Energy Index: -1.06 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 135.45 J/kg Max Up Vert Vel: 16.46 m/s Conv Inhibition (B-): 129.38 J/kg Cap Strength: 3.09 C Lift Cond Lev (LCL): 893.12 mb = 1082.87 m = 3552.67 ft Lev Free Conv (LFC): 618.12 mb = 4180.78 m = 13716.30 ft Equ Level (EL): 398.12 mb = 7625.44 m = 25017.54 ft B at Equ Level: 134.21 J/kg Max Parcel Lev (MPL): 238.12 mb = 11298.50 m = 37068.13 ft Wind level data ------------------------------------ TRUE/GROUND REL LEV P H DIR SPD U V mb m knt m/s ------------------------------------ 0 10 32931 275 8 8.0 -0.7 1 1002 85 60 2 -1.7 -1.0 2 1000 94 15 2 -0.5 -1.9 3 976 305 130 1 -0.8 0.6 4 943 610 75 8 -7.7 -2.1 5 925 778 85 8 -8.0 -0.7 6 911 914 85 7 -7.0 -0.6 7 850 1513 90 13 -13.0 0.0 8 849 1524 90 12 -12.0 0.0 9 819 1829 105 13 -12.6 3.4 10 790 2134 85 12 -12.0 -1.0 11 762 2438 75 12 -11.6 -3.1 12 709 3048 75 15 -14.5 -3.9 13 700 3156 55 16 -13.1 -9.2 14 683 3353 55 15 -12.3 -8.6 15 610 4267 60 14 -12.1 -7.0 16 566 4877 55 17 -13.9 -9.8 17 525 5486 75 25 -24.1 -6.5 18 506 5791 80 20 -19.7 -3.5 19 500 5880 80 18 -17.7 -3.1 20 486 6096 80 18 -17.7 -3.1 21 415 7315 65 9 -8.2 -3.8 22 400 7590 85 12 -12.0 -1.0 23 367 8230 110 10 -9.4 3.4 24 337 8839 80 10 -9.8 -1.7 25 310 9449 95 11 -11.0 1.0 26 300 9700 85 14 -13.9 -1.2 27 285 10058 75 14 -13.5 -3.6 28 250 10970 105 13 -12.6 3.4 29 239 11278 105 13 -12.6 3.4 30 218 11887 95 12 -12.0 1.0 31 200 12450 115 17 -15.4 7.2 32 189 12802 120 17 -14.7 8.5 33 150 14240 110 21 -19.7 7.2 34 148 14326 120 22 -19.1 11.0 35 140 14630 110 14 -13.2 4.8 36 133 14935 65 14 -12.7 -5.9 37 126 15240 55 10 -8.2 -5.7 38 120 15545 30 11 -5.5 -9.5 39 108 16154 355 11 1.0 -11.0 40 100 16580 285 9 8.7 -2.3 41 97 16764 285 9 8.7 -2.3 42 92 17069 100 10 -9.8 1.7 43 87 17374 315 11 7.8 -7.8 44 83 17678 280 20 19.7 -3.5 45 78 17983 275 20 19.9 -1.7 46 74 18288 185 15 1.3 14.9 47 71 18593 190 12 2.1 11.8 48 70 18640 270 29 29.0 -0.0 49 67 18898 270 29 29.0 -0.0 50 60 19507 250 25 23.5 8.6 51 55 20117 250 22 20.7 7.5 52 52 20422 205 12 5.1 10.9 53 50 20630 75 32 -30.9 -8.3 54 49 20726 85 26 -25.9 -2.3 55 44 21336 70 43 -40.4 -14.7 56 42 21641 65 44 -39.9 -18.6 57 40 21946 100 41 -40.4 7.1 58 36 22555 75 48 -46.4 -12.4 59 34 22915 90 63 -63.0 0.0 60 27 23165 90 63 -63.0 0.0 61 16 23774 90 59 -59.0 0.0 Wind Parameters Energy-Hel index: -8.46 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 NO DATA | | | 1000 NO DATA | | | 1500 NO DATA | | | 2000 NO DATA | | | 2500 NO DATA | | | 3000 NO DATA | | | 4000 NO DATA | | | 5000 NO DATA | | | 6000 NO DATA | | | Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251018.00.gif