UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041912.upa.cvt Date: 1200Z 19 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 19 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 1003 85 23.0 22.0 94 1.0 22.3 110 2 295.9 298.9 295.3 344.3 16.82 1 1000 105 23.0 22.5 97 0.5 22.6 100 4 296.1 299.3 295.8 346.3 17.41 2 957 492 26.0 17.0 58 9.0 19.8 62 7 302.9 305.3 294.6 341.0 12.84 3 925 792 24.4 16.4 61 8.0 18.9 65 9 304.3 306.6 294.9 342.3 12.78 4 879 1236 20.4 17.2 82 3.2 18.2 65 17 304.6 307.2 296.0 346.9 14.19 5 850 1526 19.0 14.7 76 4.3 16.1 60 17 306.0 308.4 295.1 343.5 12.47 6 783 2228 14.8 10.4 75 4.4 12.0 68 19 308.8 310.7 294.3 339.8 10.17 7 752 2570 13.4 7.4 67 6.0 9.7 79 20 310.9 312.5 293.7 337.4 8.62 8 727 2855 13.2 -6.8 24 20.0 3.7 85 19 313.7 314.3 289.9 323.8 3.16 9 717 2972 12.2 -0.8 41 13.0 5.2 85 19 313.8 314.8 291.6 329.7 5.03 10 700 3173 11.4 -8.6 24 20.0 2.2 85 19 315.1 315.7 290.1 324.4 2.85 11 681 3403 10.4 -11.6 20 22.0 0.8 90 17 316.5 316.9 290.0 324.1 2.31 12 661 3650 7.8 2.8 71 5.0 4.9 95 15 316.3 317.6 294.0 338.7 7.10 13 652 3764 7.0 2.7 74 4.3 4.5 93 15 316.6 318.0 294.1 339.2 7.15 14 571 4844 0.4 -4.2 71 4.6 -1.9 94 17 321.1 322.1 293.6 337.1 4.91 15 557 5043 0.0 -14.0 34 14.0 -5.6 96 18 322.9 323.4 291.9 330.8 2.32 16 515 5667 -4.7 -5.8 92 1.1 -5.3 99 20 324.6 325.5 294.4 340.5 4.82 17 500 5900 -5.5 -7.8 84 2.3 -6.6 100 21 326.3 327.2 294.4 340.5 4.26 18 471 6367 -6.7 -18.7 38 12.0 -10.9 100 24 330.5 330.8 293.6 337.0 1.86 19 438 6928 -10.5 -25.5 28 15.0 -14.8 100 27 332.6 332.8 293.4 336.6 1.10 20 426 7141 -11.7 -21.7 43 10.0 -14.9 100 28 333.7 334.0 294.1 339.4 1.58 21 400 7620 -14.7 -28.7 29 14.0 -18.3 100 30 335.9 336.1 294.1 339.2 0.89 22 396 7696 -14.9 -33.9 18 19.0 -19.0 100 30 336.6 336.7 294.0 338.7 0.55 23 394 7734 -14.9 -37.9 12 23.0 -19.4 100 31 337.1 337.2 294.0 338.5 0.37 24 362 8369 -19.3 -34.3 25 15.0 -22.4 104 32 339.5 339.6 294.7 341.7 0.58 25 354 8534 -20.7 -27.7 53 7.0 -22.4 110 30 339.8 340.0 295.3 343.9 1.11 26 322 9229 -24.7 -43.7 15 19.0 -27.3 96 29 343.6 343.6 295.4 344.5 0.25 27 309 9527 -26.5 -36.5 38 10.0 -28.2 90 28 345.1 345.2 296.0 347.2 0.54 28 300 9740 -28.3 -36.3 46 8.0 -29.6 85 28 345.5 345.6 296.1 347.7 0.57 29 264 10644 -36.5 -40.7 65 4.2 -37.0 78 27 346.4 346.4 296.2 348.0 0.41 30 250 11020 -39.5 -45.5 53 6.0 -40.0 75 27 347.3 347.4 296.3 348.4 0.26 31 241 11269 -41.5 -48.5 47 7.0 -42.0 77 27 348.0 348.0 296.4 348.8 0.19 32 224 11759 -46.1 -49.1 71 3.0 -46.3 80 27 348.3 348.3 296.4 349.1 0.20 33 222 11818 -46.5 -49.6 71 3.1 -46.7 80 28 348.6 348.6 296.5 349.3 0.19 34 200 12500 -52.1 -58.1 48 6.0 -52.3 85 28 350.3 350.3 296.8 350.6 0.07 35 174 13386 -59.3 -67.3 35 8.0 -59.4 85 32 352.6 352.6 297.2 352.7 0.03 36 160 13906 -62.9 -74.9 18 12.0 -63.0 83 30 355.1 355.1 297.7 355.1 0.01 37 150 14300 -65.7 -73.7 32 8.0 -65.8 80 23 356.9 356.9 298.1 357.0 0.01 38 145 14505 -67.5 -72.5 49 5.0 -67.5 76 20 357.3 357.3 298.2 357.3 0.01 39 134 14977 -70.5 -82.5 15 12.0 -70.5 66 14 360.1 360.1 298.7 360.1 0.00 40 132 15066 -70.5 -82.5 15 12.0 -70.5 64 13 361.6 361.6 299.0 361.6 0.00 41 100 16660 -83.9 -88.6 43 4.7 -83.9 235 12 365.6 365.6 299.8 365.6 0.00 42 96 16885 -85.9 -90.2 46 4.3 -85.9 225 9 366.0 366.0 299.8 366.0 0.00 43 84 17618 -85.1 -91.1 33 6.0 -85.1 152 9 381.9 381.9 302.5 381.9 0.00 44 81 17822 -78.5 -87.5 22 9.0 -78.5 98 12 399.4 399.4 305.1 399.4 0.00 45 71 18586 -71.5 -88.5 6 17.0 -71.6 285 13 429.7 429.7 308.8 429.7 0.00 46 70 18670 -71.7 -88.7 6 17.0 -71.8 250 22 431.0 431.0 308.9 431.0 0.00 47 65 19105 -72.9 -89.9 6 17.0 -73.0 242 27 437.6 437.6 309.6 437.6 0.00 48 62 19384 -70.3 -89.3 5 19.0 -70.4 245 29 449.3 449.3 310.8 449.3 0.00 49 53 20308 -73.1 -90.1 6 17.0 -73.2 262 37 463.4 463.4 312.1 463.5 0.00 50 50 20650 -71.3 -90.3 4 19.0 -71.4 255 27 475.5 475.5 313.1 475.5 0.00 51 45 21279 -69.3 -90.3 3 21.0 -69.5 241 26 494.9 494.9 314.6 494.9 0.00 52 43 21556 -62.7 -89.7 1 27.0 -63.2 256 13 517.6 517.6 316.1 517.6 0.00 53 42 21702 -61.5 -88.5 2 27.0 -62.1 243 8 524.0 524.0 316.5 524.1 0.00 54 34 23013 -62.9 -88.9 2 26.0 -63.5 274 19 553.0 553.0 318.3 553.0 0.00 55 30 23790 -60.7 -88.7 1 28.0 -61.6 305 23 579.2 579.2 319.6 579.2 0.00 56 28 24219 -60.7 -88.7 1 28.0 -61.6 294 26 590.7 590.7 320.2 590.7 0.01 57 26 24686 -54.5 -86.5 1 32.0 -56.4 295 13 621.0 621.0 321.5 621.0 0.01 58 20 26360 -55.5 -85.5 1 30.0 -57.6 90 56 666.3 666.3 323.3 666.4 0.01 59 18 27029 -57.1 -87.1 1 30.0 -59.0 88 52 681.6 681.6 323.8 681.7 0.01 60 15 28200 -50.7 -83.7 1 33.0 -54.7 80 45 739.4 739.4 325.6 739.6 0.02 61 14 28649 -51.5 -84.5 1 33.0 -55.4 84 47 751.4 751.4 326.0 751.6 0.02 TRP 96 16885 -85.9 -90.2 46 4.3 -85.9 225 9 366.0 366.0 299.8 366.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5795.00 m Freezing level: 557.00 mb = 5043.07 m = 16545.29 ft Wetbulb zero: 595.05 mb = 4507.67 m = 14788.75 ft Precipitable water: 1.84 inches Sfc-500 mean rel hum: 64.99 % Est. max temperature: 33.01 C = 91.41 F Sfc-Lift cond lev (LCL): 988.83 mb = 203.88 m = 668.89 ft T: 23.77 C 700-500 lapse rate: 6.20 C/km ThetaE index: 23.03 C Layer 850.0- 717.0 mb Conv cond level (CCL): 791.11 mb = 2139.73 m = 7020.03 ft Mean mixing ratio: 13.97 g/kg Conv temperature: 35.58 C = 96.05 F Cap Strength: 3.10 C Lifted Index: 0.05 C Risk: Showers probable Lifted Index @300 mb: 3.97 C Lifted Index @700 mb: 2.77 C Showalter Index: -0.13 C Risk: Thunderstorms probable Total Totals Index: 44.70 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.50 C Cross Totals Index: 20.20 C K Index: 19.20 Risk: < 20 % chance of thunderstorms Sweat Index: 231.40 Risk: None Energy Index: -0.60 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 37.22 J/kg Max Up Vert Vel: 8.63 m/s Conv Inhibition (B-): 296.42 J/kg Cap Strength: 3.10 C Lift Cond Lev (LCL): 868.99 mb = 1335.27 m = 4380.77 ft Lev Free Conv (LFC): 523.99 mb = 5529.35 m = 18140.71 ft Equ Level (EL): 493.99 mb = 5994.40 m = 19666.42 ft B at Equ Level: 35.31 J/kg Max Parcel Lev (MPL): 443.99 mb = 6823.31 m = 22385.91 ft Wind level data Storm motion: 113 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 85 110 2 -1.9 0.7 | 293 10 9.5 -4.1 1 1000 105 100 4 -3.9 0.7 | 299 8 7.4 -4.1 2 978 305 80 8 -7.9 -1.4 | 330 7 3.5 -6.2 3 944 610 50 6 -4.6 -3.9 | 322 11 6.8 -8.6 4 925 792 65 9 -8.2 -3.8 | 339 9 3.2 -8.6 5 912 914 65 10 -9.1 -4.2 | 346 9 2.3 -9.0 6 881 1219 65 17 -15.4 -7.2 | 19 13 -4.0 -12.0 7 850 1526 60 17 -14.7 -8.5 | 14 14 -3.3 -13.3 8 791 2134 65 18 -16.3 -7.6 | 22 13 -4.9 -12.4 9 763 2438 75 20 -19.3 -5.2 | 39 13 -7.9 -10.0 10 736 2743 85 19 -18.9 -1.7 | 50 10 -7.5 -6.4 11 700 3173 85 19 -18.9 -1.7 | 50 10 -7.5 -6.4 12 659 3658 95 15 -14.9 1.3 | 46 5 -3.6 -3.5 13 612 4267 80 18 -17.7 -3.1 | 39 10 -6.3 -7.9 14 567 4877 95 17 -16.9 1.5 | 59 6 -5.6 -3.3 15 500 5900 100 21 -20.7 3.6 | 83 9 -9.3 -1.1 16 487 6096 100 23 -22.7 4.0 | 86 11 -11.3 -0.8 17 400 7620 100 30 -29.5 5.2 | 91 18 -18.2 0.4 18 368 8230 100 33 -32.5 5.7 | 93 21 -21.1 1.0 19 353 8534 110 30 -28.2 10.3 | 108 18 -16.8 5.5 20 300 9740 85 28 -27.9 -2.4 | 66 18 -16.5 -7.2 21 299 9754 85 28 -27.9 -2.4 | 66 18 -16.5 -7.2 22 250 11020 75 27 -26.1 -7.0 | 51 19 -14.7 -11.8 23 200 12500 85 28 -27.9 -2.4 | 66 18 -16.5 -7.2 24 165 13716 85 33 -32.9 -2.9 | 70 23 -21.5 -7.7 25 150 14300 80 23 -22.7 -4.0 | 52 14 -11.3 -8.8 26 128 15240 60 10 -8.7 -5.0 | 344 10 2.7 -9.8 27 121 15545 350 3 0.5 -3.0 | 303 14 11.9 -7.7 28 100 16660 235 12 9.8 6.9 | 264 21 21.2 2.1 29 96 16885 225 9 6.4 6.4 | 265 18 17.7 1.6 30 93 17069 230 11 8.4 7.1 | 263 20 19.8 2.3 31 88 17374 165 2 -0.5 1.9 | 285 11 10.9 -2.8 32 83 17678 150 10 -5.0 8.7 | 239 7 6.4 3.9 33 79 17983 55 13 -10.6 -7.5 | 357 12 0.7 -12.2 34 75 18288 335 11 4.6 -10.0 | 313 22 16.0 -14.7 35 71 18593 285 13 12.6 -3.4 | 289 25 23.9 -8.1 36 70 18670 250 22 20.7 7.5 | 265 32 32.1 2.7 37 64 19202 240 28 24.2 14.0 | 255 37 35.6 9.2 38 55 20117 265 33 32.9 2.9 | 272 44 44.3 -1.9 39 52 20422 260 39 38.4 6.8 | 268 50 49.8 2.0 40 50 20650 255 27 26.1 7.0 | 267 38 37.5 2.2 41 45 21336 240 26 22.5 13.0 | 256 35 33.9 8.2 42 43 21641 260 10 9.8 1.7 | 278 21 21.2 -3.0 43 40 21946 195 3 0.8 2.9 | 279 12 12.2 -1.9 44 39 22250 285 16 15.5 -4.1 | 288 28 26.8 -8.9 45 37 22555 270 17 17.0 -0.0 | 280 29 28.4 -4.8 46 33 23165 275 20 19.9 -1.7 | 282 32 31.3 -6.5 47 32 23470 310 15 11.5 -9.6 | 302 27 22.9 -14.4 48 30 23774 320 20 12.9 -15.3 | 310 31 24.2 -20.1 49 30 23790 305 23 18.8 -13.2 | 301 35 30.2 -18.0 50 27 24384 290 27 25.4 -9.2 | 291 39 36.8 -14.0 51 26 24689 300 13 11.3 -6.5 | 296 25 22.6 -11.3 52 25 24994 130 13 -10.0 8.4 | 202 4 1.4 3.6 53 24 25298 120 32 -27.7 16.0 | 124 20 -16.3 11.2 54 20 26360 90 56 -56.0 0.0 | 84 45 -44.6 -4.8 55 19 26518 95 58 -57.8 5.1 | 90 46 -46.4 0.3 56 16 27127 75 43 -41.5 -11.1 | 62 34 -30.2 -15.9 57 14 27737 85 48 -47.8 -4.2 | 76 38 -36.4 -9.0 58 11 28651 95 56 -55.8 4.9 | 90 44 -44.4 0.1 Wind Parameters Mean winds (0-6000m): 82.8 at 16.5 knts Storm direction: 112.8 at 12.3 knts Shear (0-3000m) pos: 2.2 neg: 1.5 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 116.3 deg Storm rel helicity (0-3000m) pos: 61.9 neg: -5.0 tot: 57.0 m^2/s^2 ave: 19.0 10^-3 m/s^2 rel: 0.65 Storm rel vorticity (0-3000m) horiz: 5.4 stream: 3.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.76 Bulk Shear: 13.47 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 76 6 321 8| 0.0 5.5 5.5| 10.1 -2.6 7.5 15.0 0.39| 10.4 4.0 1000 68 8 333 9| 4.1 2.8 6.9| 29.7 -2.6 27.1 27.1 0.63| 9.4 5.9 1500 65 11 351 9| 2.7 3.0 5.7| 36.6 -5.0 31.7 21.1 0.58| 7.7 4.5 2000 64 13 360 10| 2.4 2.2 4.6| 41.9 -5.0 36.9 18.5 0.60| 6.2 3.7 2500 66 14 7 10| 2.6 1.8 4.4| 58.8 -5.0 53.9 21.5 0.66| 6.1 4.0 3000 70 15 14 10| 2.2 1.5 3.7| 61.9 -5.0 57.0 19.0 0.65| 5.4 3.5 4000 76 15 22 9| 1.4 1.5 2.9| 62.1 -6.7 55.4 13.9 0.50| 5.1 2.5 5000 78 16 27 9| 1.5 1.2 2.7| 69.5 -7.5 62.0 12.4 0.49| 4.8 2.4 6000 83 16 36 8| 1.6 1.0 2.6| 76.2 -7.5 68.7 11.4 0.50| 4.5 2.2 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250419.12.gif