UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 18 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 1000 85 27.0 25.0 89 2.0 25.5 130 2 300.1 303.9 298.7 359.9 20.33 1 925 765 23.8 20.9 84 2.9 21.7 75 9 303.6 306.8 297.5 354.4 17.06 2 907 937 23.4 18.4 74 5.0 19.9 57 12 304.9 307.7 296.5 349.3 14.84 3 850 1502 19.0 16.7 87 2.3 17.4 70 13 306.0 308.7 296.3 348.7 14.21 4 792 2107 15.6 13.2 86 2.4 14.0 79 15 308.7 310.9 295.6 345.5 12.13 5 759 2468 13.8 10.5 80 3.3 11.7 90 16 310.5 312.5 295.0 342.8 10.57 6 747 2603 14.0 5.0 55 9.0 8.7 90 15 312.1 313.5 293.0 334.9 7.34 7 706 3078 11.6 5.6 67 6.0 8.0 114 11 314.6 316.1 294.3 339.9 8.11 8 700 3150 11.4 1.4 50 10.0 5.8 110 12 315.1 316.3 292.9 334.2 6.06 9 696 3198 11.4 -1.6 40 13.0 4.5 109 12 315.6 316.6 292.0 331.2 4.89 10 689 3283 10.8 1.8 54 9.0 5.7 108 13 315.9 317.1 293.3 335.9 6.34 11 683 3356 10.8 -3.2 37 14.0 3.6 106 13 316.7 317.5 291.9 330.9 4.42 12 665 3578 9.2 3.2 66 6.0 5.7 103 14 317.3 318.7 294.4 340.3 7.27 13 658 3666 9.0 -1.0 49 10.0 3.6 101 15 318.0 319.1 293.2 335.4 5.41 14 614 4236 5.0 0.1 71 4.9 2.3 91 18 319.8 321.0 294.3 340.0 6.29 15 600 4425 3.8 -2.2 65 6.0 0.6 87 19 320.5 321.6 293.9 338.1 5.43 16 556 5042 1.4 -5.6 60 7.0 -2.1 73 21 324.7 325.6 294.3 339.7 4.53 17 540 5277 -0.7 -1.9 92 1.2 -1.3 70 22 325.0 326.2 295.6 345.2 6.18 18 528 5457 -1.3 -8.3 59 7.0 -4.6 70 22 326.3 327.1 294.1 339.3 3.87 19 523 5533 -1.9 -5.7 75 3.8 -3.8 70 22 326.5 327.4 294.9 342.4 4.79 20 500 5890 -3.9 -12.9 50 9.0 -7.7 70 21 328.3 328.9 293.8 338.0 2.83 21 459 6558 -7.9 -14.9 57 7.0 -10.6 72 21 331.4 331.9 294.4 340.5 2.62 22 454 6643 -7.9 -20.9 34 13.0 -12.3 73 22 332.5 332.8 293.9 338.1 1.59 23 445 6797 -9.5 -14.5 67 5.0 -11.5 74 22 332.4 332.9 294.8 342.0 2.79 24 417 7295 -12.7 -26.7 30 14.0 -16.5 84 23 334.5 334.7 293.9 338.3 1.03 25 400 7610 -15.1 -19.0 72 3.9 -16.4 95 25 335.4 335.8 295.0 342.9 2.13 26 397 7667 -15.5 -18.4 78 2.9 -16.5 95 25 335.6 336.0 295.2 343.6 2.26 27 393 7744 -15.7 -24.7 46 9.0 -18.3 95 25 336.3 336.5 294.6 341.1 1.31 28 382 7958 -16.1 -34.1 20 18.0 -20.0 95 25 338.5 338.6 294.5 340.6 0.56 29 375 8097 -16.9 -28.9 35 12.0 -19.9 92 24 339.2 339.4 295.0 342.7 0.94 30 373 8137 -17.1 -33.1 24 16.0 -20.6 92 24 339.5 339.6 294.8 341.9 0.63 31 371 8178 -16.9 -41.9 9 25.0 -21.2 91 23 340.3 340.3 294.6 341.3 0.26 32 357 8466 -18.9 -33.9 25 15.0 -22.1 86 26 341.3 341.5 295.2 343.7 0.61 33 347 8677 -19.9 -47.9 6 28.0 -23.8 88 26 342.8 342.8 295.1 343.4 0.14 34 343 8764 -20.5 -40.5 15 20.0 -23.9 90 25 343.1 343.2 295.4 344.4 0.33 35 300 9740 -28.9 -34.9 56 6.0 -29.9 85 15 344.6 344.8 296.0 347.2 0.66 36 288 10029 -31.7 -34.0 80 2.3 -32.1 85 16 344.7 344.9 296.1 347.6 0.75 37 258 10794 -37.5 -42.5 60 5.0 -38.0 85 17 347.2 347.2 296.3 348.6 0.35 38 250 11010 -38.1 -53.1 19 15.0 -39.2 105 14 349.4 349.4 296.6 349.9 0.11 39 247 11093 -38.7 -55.7 15 17.0 -39.8 111 14 349.7 349.8 296.7 350.1 0.08 40 219 11910 -45.5 -69.5 5 24.0 -46.2 164 16 351.5 351.5 297.0 351.5 0.01 41 200 12510 -51.1 -70.1 9 19.0 -51.5 140 15 351.8 351.9 297.0 351.9 0.02 42 163 13803 -62.7 -72.7 25 10.0 -62.8 147 12 353.6 353.6 297.4 353.6 0.01 43 156 14072 -64.3 -75.3 21 11.0 -64.4 148 11 355.3 355.3 297.8 355.3 0.01 44 150 14310 -66.1 -76.1 23 10.0 -66.2 150 11 356.2 356.2 298.0 356.3 0.01 45 120 15620 -78.3 -80.9 66 2.6 -78.3 151 8 357.3 357.3 298.2 357.3 0.00 46 114 15910 -80.7 -85.1 47 4.4 -80.7 156 11 358.1 358.1 298.3 358.1 0.00 47 102 16531 -84.1 -89.1 41 5.0 -84.1 100 16 363.2 363.2 299.3 363.2 0.00 48 101 16585 -84.1 -90.1 34 6.0 -84.1 100 16 364.2 364.2 299.5 364.2 0.00 49 100 16640 -84.1 -90.1 34 6.0 -84.1 100 16 365.2 365.2 299.7 365.2 0.00 50 95 16924 -84.3 -90.3 34 6.0 -84.3 111 19 370.2 370.2 300.6 370.2 0.00 51 84 17618 -78.1 -88.1 18 10.0 -78.1 359 15 396.1 396.1 304.7 396.1 0.00 52 70 18650 -82.1 -90.1 24 8.0 -82.1 165 3 408.7 408.7 306.3 408.7 0.00 53 69 18730 -82.1 -90.1 24 8.0 -82.1 133 2 410.4 410.4 306.6 410.4 0.00 54 64 19163 -71.3 -91.3 4 20.0 -71.4 324 11 443.1 443.1 310.2 443.1 0.00 55 60 19546 -69.1 -92.1 2 23.0 -69.2 293 25 456.2 456.2 311.4 456.2 0.00 56 55 20063 -71.5 -90.5 4 19.0 -71.6 272 35 462.2 462.2 312.0 462.2 0.00 57 50 20630 -68.1 -91.1 2 23.0 -68.3 255 27 483.0 483.0 313.7 483.0 0.00 58 35 22797 -63.1 -91.1 1 28.0 -63.7 13 10 547.9 547.9 318.0 547.9 0.00 59 30 23740 -65.1 -92.1 1 27.0 -65.6 315 12 567.2 567.2 319.0 567.2 0.00 60 29 23947 -64.9 -91.9 1 27.0 -65.4 317 12 573.2 573.2 319.3 573.3 0.00 TRP 102 16531 -84.1 -89.1 41 5.0 -84.1 100 16 363.2 363.2 299.3 363.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5805.00 m Freezing level: 545.33 mb = 5198.71 m = 17055.92 ft Wetbulb zero: 589.75 mb = 4564.39 m = 14974.86 ft Precipitable water: 2.17 inches Sfc-500 mean rel hum: 70.69 % Est. max temperature: 32.90 C = 91.22 F Sfc-Lift cond lev (LCL): 971.87 mb = 333.88 m = 1095.38 ft T: 25.83 C 700-500 lapse rate: 5.58 C/km ThetaE index: 24.97 C Layer 925.0- 706.0 mb Conv cond level (CCL): 871.82 mb = 1281.51 m = 4204.38 ft Mean mixing ratio: 17.90 g/kg Conv temperature: 32.48 C = 90.46 F Cap Strength: 2.11 C Lifted Index: -2.87 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.49 C Lifted Index @700 mb: -0.69 C Showalter Index: -0.46 C Risk: Thunderstorms probable Total Totals Index: 43.50 C Risk: None Vertical Totals Index: 22.90 C Cross Totals Index: 20.60 C K Index: 29.60 Risk: 40-60 % chance of thunderstorms Sweat Index: 247.40 Risk: None Energy Index: -2.08 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1104.38 J/kg Max Up Vert Vel: 47.00 m/s Conv Inhibition (B-): 28.29 J/kg Cap Strength: 2.02 C Lift Cond Lev (LCL): 911.06 mb = 898.20 m = 2946.81 ft Lev Free Conv (LFC): 846.06 mb = 1541.77 m = 5058.24 ft Equ Level (EL): 146.06 mb = 14466.24 m = 47460.85 ft B at Equ Level: 1095.75 J/kg Max Parcel Lev (MPL): 76.06 mb = 18179.75 m = 59644.11 ft Wind level data Storm motion: 112 at 11 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 1000 85 130 2 -1.5 1.3 | 289 9 8.9 -3.0 1 975 305 210 6 3.0 5.2 | 266 13 13.5 0.9 2 942 610 100 5 -4.9 0.9 | 302 7 5.5 -3.5 3 925 765 75 9 -8.7 -2.3 | 345 7 1.8 -6.7 4 909 914 55 12 -9.8 -6.9 | 357 11 0.6 -11.2 5 878 1219 80 11 -10.8 -1.9 | 3 6 -0.4 -6.2 6 850 1502 70 13 -12.2 -4.4 | 11 9 -1.7 -8.8 7 848 1524 65 13 -11.8 -5.5 | 8 10 -1.3 -9.8 8 789 2134 80 15 -14.8 -2.6 | 32 8 -4.3 -6.9 9 761 2438 90 16 -16.0 0.0 | 52 7 -5.5 -4.3 10 734 2743 90 15 -15.0 0.0 | 46 6 -4.5 -4.3 11 708 3048 115 11 -10.0 4.6 | 238 1 0.5 0.3 12 700 3150 110 12 -11.3 4.1 | 74 1 -0.8 -0.2 13 610 4267 90 18 -18.0 0.0 | 60 9 -7.5 -4.3 14 545 5182 70 22 -20.7 -7.5 | 41 16 -10.2 -11.9 15 500 5890 70 21 -19.7 -7.2 | 39 15 -9.3 -11.5 16 487 6096 70 21 -19.7 -7.2 | 39 15 -9.3 -11.5 17 432 7010 75 22 -21.3 -5.7 | 47 15 -10.8 -10.0 18 400 7610 95 25 -24.9 2.2 | 82 15 -14.4 -2.2 19 383 7925 95 25 -24.9 2.2 | 82 15 -14.4 -2.2 20 368 8230 90 23 -23.0 0.0 | 71 13 -12.5 -4.3 21 353 8534 85 27 -26.9 -2.4 | 68 18 -16.4 -6.7 22 312 9449 105 20 -19.3 5.2 | 95 9 -8.9 0.8 23 300 9740 85 15 -14.9 -1.3 | 38 7 -4.5 -5.6 24 299 9754 85 16 -15.9 -1.4 | 44 8 -5.5 -5.7 25 251 10973 85 17 -16.9 -1.5 | 48 9 -6.5 -5.8 26 250 11010 105 14 -13.5 3.6 | 77 3 -3.1 -0.7 27 230 11582 150 14 -7.0 12.1 | 204 9 3.5 7.8 28 219 11887 165 16 -4.1 15.5 | 210 13 6.3 11.1 29 200 12510 140 15 -9.6 11.5 | 187 7 0.8 7.2 30 191 12802 140 14 -9.0 10.7 | 193 7 1.5 6.4 31 150 14310 150 11 -5.5 9.5 | 224 7 5.0 5.2 32 150 14326 170 14 -2.4 13.8 | 220 12 8.0 9.5 33 142 14630 150 10 -5.0 8.7 | 232 7 5.5 4.3 34 121 15545 150 8 -4.0 6.9 | 248 7 6.5 2.6 35 109 16154 160 13 -4.4 12.2 | 217 10 6.0 7.9 36 103 16459 105 14 -13.5 3.6 | 77 3 -3.1 -0.7 37 102 16531 100 16 -15.8 2.8 | 74 6 -5.3 -1.6 38 100 16640 100 16 -15.8 2.8 | 74 6 -5.3 -1.6 39 98 16764 100 16 -15.8 2.8 | 74 6 -5.3 -1.6 40 93 17069 120 21 -18.2 10.5 | 129 10 -7.7 6.2 41 88 17374 40 13 -8.4 -10.0 | 352 14 2.1 -14.3 42 83 17678 350 16 2.8 -15.8 | 327 24 13.2 -20.1 43 75 18288 245 12 10.9 5.1 | 268 21 21.3 0.7 44 70 18650 165 3 -0.8 2.9 | 278 10 9.7 -1.4 45 67 18898 70 1 -0.9 -0.3 | 296 11 9.5 -4.7 46 64 19202 315 12 8.5 -8.5 | 304 23 19.0 -12.8 47 61 19507 295 22 19.9 -9.3 | 294 33 30.4 -13.6 48 57 19812 280 39 38.4 -6.8 | 283 50 48.9 -11.1 49 50 20630 255 27 26.1 7.0 | 266 37 36.5 2.7 50 49 20726 260 26 25.6 4.5 | 270 36 36.1 0.2 51 42 21641 220 25 16.1 19.2 | 241 30 26.5 14.8 52 40 21946 195 11 2.8 10.6 | 245 15 13.3 6.3 53 36 22555 320 10 6.4 -7.7 | 305 21 16.9 -12.0 54 35 22860 25 10 -4.2 -9.1 | 335 15 6.2 -13.4 55 33 23165 5 18 -1.6 -17.9 | 338 24 8.9 -22.3 56 31 23470 325 10 5.7 -8.2 | 308 20 16.2 -12.5 57 30 23740 315 12 8.5 -8.5 | 304 23 19.0 -12.8 58 28 24079 320 11 7.1 -8.4 | 306 22 17.5 -12.8 Wind Parameters Mean winds (0-6000m): 82.5 at 15.1 knts Storm direction: 112.5 at 11.3 knts Shear (0-3000m) pos: 1.7 neg: 2.1 tot: 3.8 10-3/s Storm rel Dir Shear (0-3000m): -99.8 deg Storm rel helicity (0-3000m) pos: 38.5 neg: -14.1 tot: 24.5 m^2/s^2 ave: 8.2 10^-3 m/s^2 rel: 0.35 Storm rel vorticity (0-3000m) horiz: 7.8 stream: 2.7 10^-3/s Energy-Hel index: 0.22 Bulk Rich Number: 31.74 Bulk Shear: 34.80 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 ------------------------------------------------------------------------------- 500 177 5 267 10| 0.0 3.4 3.4| 7.8 -12.8 -4.9 -9.9 -0.04| 15.3 -0.6 1000 89 7 324 6| 0.0 5.5 5.5| 22.2 -12.8 9.4 9.4 0.28| 13.6 3.8 1500 80 9 343 6| 0.0 4.3 4.3| 24.6 -13.3 11.3 7.5 0.27| 10.8 2.9 2000 77 10 355 7| 0.9 3.2 4.1| 32.0 -13.3 18.7 9.3 0.33| 9.0 3.0 2500 80 11 5 6| 1.3 2.6 3.8| 37.8 -13.7 24.1 9.6 0.37| 7.9 2.9 3000 84 12 11 6| 1.7 2.1 3.8| 38.5 -14.1 24.5 8.2 0.35| 7.8 2.7 4000 89 12 22 5| 1.3 2.6 3.8| 38.5 -15.3 23.2 5.8 0.26| 6.9 1.8 5000 87 14 33 6| 1.0 2.8 3.8| 38.5 -27.2 11.3 2.3 0.16| 6.4 1.0 6000 82 15 36 8| 0.8 2.3 3.2| 38.5 -31.3 7.3 1.2 0.14| 5.5 0.7 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250418.00.gif