UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042012.upa.cvt Date: 1200Z 20 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 20 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 25.8 24.6 93 1.2 24.9 250 2 298.7 302.3 298.0 356.4 19.77 1 1000 109 25.4 24.5 95 0.9 24.7 250 2 298.5 302.1 297.9 356.0 19.71 2 925 794 21.2 19.5 90 1.7 20.0 300 5 301.0 303.8 295.9 346.9 15.61 3 917 869 20.8 19.6 93 1.2 19.9 319 6 301.3 304.2 296.2 348.0 15.85 4 902 1013 21.4 15.4 69 6.0 17.4 347 6 303.4 305.6 294.3 339.9 12.29 5 887 1158 20.0 19.8 99 0.2 19.9 12 5 303.4 306.4 297.2 352.7 16.61 6 850 1526 18.6 16.6 88 2.0 17.2 75 3 305.6 308.3 296.2 347.9 14.12 7 700 3170 9.0 6.5 84 2.5 7.5 65 13 312.5 314.1 294.1 339.4 8.71 8 646 3831 6.4 -5.6 42 12.0 0.6 108 15 316.8 317.5 291.5 329.3 3.90 9 639 3920 6.0 -3.0 52 9.0 1.4 112 15 317.3 318.2 292.4 332.7 4.80 10 605 4365 2.8 -7.2 48 10.0 -1.9 106 16 318.6 319.3 291.9 330.6 3.68 11 588 4595 1.0 -1.8 82 2.8 -0.4 95 15 319.1 320.2 293.7 337.5 5.71 12 554 5072 -1.1 -18.1 26 17.0 -7.2 97 18 322.1 322.4 291.1 327.8 1.66 13 538 5304 -2.9 -16.9 33 14.0 -8.0 98 20 322.7 323.0 291.5 329.1 1.89 14 522 5543 -5.1 -5.9 94 0.8 -5.5 99 21 322.8 323.7 293.9 338.3 4.72 15 506 5787 -6.3 -9.3 79 3.0 -7.6 100 23 324.3 325.0 293.5 336.7 3.74 16 500 5880 -5.9 -15.9 45 10.0 -9.6 90 26 325.8 326.3 292.6 333.4 2.21 17 490 6038 -6.5 -22.5 27 16.0 -11.5 90 28 327.0 327.3 292.1 331.5 1.28 18 473 6313 -8.7 -15.7 57 7.0 -11.3 93 28 327.6 328.1 293.3 335.8 2.38 19 470 6362 -8.9 -19.9 41 11.0 -12.5 94 28 327.9 328.3 292.7 333.8 1.68 20 467 6412 -9.3 -13.5 71 4.2 -10.9 95 27 328.0 328.6 293.8 337.9 2.89 21 465 6445 -9.3 -17.3 52 8.0 -12.2 96 27 328.4 328.9 293.3 335.8 2.12 22 462 6495 -9.7 -13.5 74 3.8 -11.2 96 27 328.6 329.1 294.0 338.5 2.92 23 455 6613 -10.1 -26.1 26 16.0 -14.6 98 26 329.5 329.7 292.6 333.1 1.00 24 400 7600 -13.7 -38.7 10 25.0 -18.6 95 34 337.2 337.3 294.0 338.5 0.34 25 398 7638 -13.7 -43.7 6 30.0 -18.9 95 34 337.7 337.7 293.9 338.5 0.20 26 333 8972 -22.7 -36.7 27 14.0 -25.2 80 27 343.0 343.1 295.5 344.9 0.49 27 324 9172 -23.7 -47.7 9 24.0 -26.8 80 27 344.3 344.4 295.5 345.0 0.16 28 300 9730 -28.5 -45.5 18 17.0 -30.6 80 28 345.2 345.3 295.8 346.1 0.22 29 254 10901 -37.3 -61.3 6 24.0 -38.6 103 25 349.0 349.0 296.4 349.2 0.04 30 250 11010 -37.9 -60.9 7 23.0 -39.1 105 25 349.7 349.7 296.6 349.9 0.04 31 200 12500 -50.9 -65.9 15 15.0 -51.3 125 20 352.2 352.2 297.1 352.3 0.03 32 191 12797 -53.7 -69.7 12 16.0 -54.0 135 16 352.3 352.3 297.1 352.4 0.02 33 168 13607 -61.1 -67.1 45 6.0 -61.2 122 11 353.2 353.2 297.3 353.3 0.03 34 167 13644 -61.5 -67.5 45 6.0 -61.6 121 11 353.1 353.1 297.3 353.2 0.03 35 162 13831 -62.9 -72.9 25 10.0 -63.0 122 11 353.8 353.8 297.5 353.9 0.01 36 150 14300 -66.7 -74.7 32 8.0 -66.8 130 18 355.2 355.2 297.7 355.2 0.01 37 148 14381 -67.5 -75.5 31 8.0 -67.5 133 14 355.2 355.2 297.7 355.2 0.01 38 137 14842 -71.3 -73.3 75 2.0 -71.3 115 17 356.4 356.4 298.0 356.5 0.01 39 128 15241 -73.7 -78.7 46 5.0 -73.7 110 16 359.1 359.1 298.5 359.1 0.01 40 100 16640 -85.3 -89.6 46 4.3 -85.3 65 6 362.9 362.9 299.2 362.9 0.00 41 97 16807 -86.3 -90.4 47 4.1 -86.3 65 8 364.1 364.1 299.5 364.2 0.00 42 92 17097 -84.9 -90.9 33 6.0 -84.9 57 12 372.5 372.5 301.0 372.5 0.00 43 90 17220 -78.9 -87.9 22 9.0 -78.9 54 14 386.8 386.8 303.3 386.8 0.00 44 81 17825 -74.7 -89.7 8 15.0 -74.7 312 20 407.2 407.2 306.2 407.2 0.00 45 77 18117 -77.1 -90.1 11 13.0 -77.1 242 17 408.2 408.2 306.3 408.2 0.00 46 70 18670 -72.5 -90.5 5 18.0 -72.6 295 27 429.3 429.3 308.7 429.3 0.00 47 69 18755 -72.3 -90.3 5 18.0 -72.4 293 25 431.5 431.5 309.0 431.5 0.00 48 64 19197 -73.1 -90.1 6 17.0 -73.2 290 29 439.1 439.1 309.8 439.1 0.00 49 55 20086 -72.9 -90.9 5 18.0 -73.0 246 29 459.0 459.0 311.7 459.0 0.00 50 50 20650 -69.3 -91.3 3 22.0 -69.5 275 20 480.2 480.2 313.5 480.2 0.00 51 48 20893 -69.1 -92.1 2 23.0 -69.3 285 19 486.3 486.3 314.0 486.3 0.00 52 47 21020 -65.5 -90.5 2 25.0 -65.8 290 18 497.9 497.9 314.8 497.9 0.00 53 45 21283 -66.9 -90.9 2 24.0 -67.2 292 21 500.7 500.7 315.0 500.7 0.00 54 38 22325 -58.3 -89.3 1 31.0 -59.2 255 26 547.4 547.4 317.9 547.4 0.00 55 30 23800 -61.5 -90.5 1 29.0 -62.3 220 15 577.0 577.0 319.5 577.0 0.00 56 28 24227 -62.5 -90.5 1 28.0 -63.2 263 15 585.7 585.7 319.9 585.7 0.00 57 24 25183 -60.1 -90.1 1 30.0 -61.2 110 10 619.1 619.1 321.5 619.1 0.00 TRP 97 16807 -86.3 -90.4 47 4.1 -86.3 65 8 364.1 364.1 299.5 364.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5771.00 m Freezing level: 571.81 mb = 4821.79 m = 15819.34 ft Wetbulb zero: 624.57 mb = 4105.93 m = 13470.74 ft Precipitable water: 2.07 inches Sfc-500 mean rel hum: 73.74 % Est. max temperature: 32.56 C = 90.60 F Sfc-Lift cond lev (LCL): 986.12 mb = 231.78 m = 760.43 ft T: 24.65 C 700-500 lapse rate: 5.50 C/km ThetaE index: 23.34 C Layer 850.0- 639.0 mb Conv cond level (CCL): 890.16 mb = 1127.32 m = 3698.51 ft Mean mixing ratio: 17.05 g/kg Conv temperature: 30.48 C = 86.87 F Cap Strength: 1.46 C Lifted Index: -3.05 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -0.28 C Lifted Index @700 mb: -1.68 C Showalter Index: -2.20 C Risk: Severe thunderstorms possible Total Totals Index: 47.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.50 C Cross Totals Index: 22.50 C K Index: 38.60 Risk: > 80 % chance of thunderstorms Sweat Index: 231.20 Risk: None Energy Index: -2.87 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 460.41 J/kg Max Up Vert Vel: 30.35 m/s Conv Inhibition (B-): 27.75 J/kg Cap Strength: 1.50 C Lift Cond Lev (LCL): 931.82 mb = 729.43 m = 2393.11 ft Lev Free Conv (LFC): 796.82 mb = 2073.03 m = 6801.19 ft Equ Level (EL): 326.82 mb = 9108.81 m = 29884.19 ft B at Equ Level: 456.43 J/kg Max Parcel Lev (MPL): 126.82 mb = 15292.99 m = 50173.24 ft Wind level data Storm motion: 118 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 1003 85 250 2 1.9 0.7 | 290 11 10.0 -3.6 1 1000 109 250 2 1.9 0.7 | 290 11 10.0 -3.6 2 978 305 255 3 2.9 0.8 | 288 12 11.0 -3.5 3 945 610 285 6 5.8 -1.6 | 293 15 13.9 -5.9 4 925 794 300 5 4.3 -2.5 | 299 14 12.4 -6.8 5 912 914 330 7 3.5 -6.1 | 312 16 11.6 -10.4 6 850 1526 75 3 -2.9 -0.8 | 315 7 5.2 -5.1 7 791 2134 65 7 -6.3 -3.0 | 347 7 1.7 -7.3 8 763 2438 50 8 -6.1 -5.1 | 348 10 1.9 -9.5 9 736 2743 70 11 -10.3 -3.8 | 16 8 -2.3 -8.1 10 700 3170 65 13 -11.8 -5.5 | 21 10 -3.7 -9.8 11 684 3353 65 13 -11.8 -5.5 | 21 10 -3.7 -9.8 12 659 3658 100 15 -14.8 2.6 | 76 7 -6.7 -1.7 13 634 3962 115 15 -13.6 6.3 | 110 6 -5.5 2.0 14 611 4267 110 17 -16.0 5.8 | 101 8 -7.9 1.5 15 588 4572 95 15 -14.9 1.3 | 66 8 -6.9 -3.0 16 506 5791 100 23 -22.7 4.0 | 89 15 -14.6 -0.3 17 500 5880 90 26 -26.0 0.0 | 76 18 -17.9 -4.3 18 486 6096 90 29 -29.0 0.0 | 78 21 -20.9 -4.3 19 432 7010 105 24 -23.2 6.2 | 97 15 -15.1 1.9 20 400 7600 95 34 -33.9 3.0 | 87 26 -25.8 -1.4 21 383 7925 95 34 -33.9 3.0 | 87 26 -25.8 -1.4 22 367 8230 95 26 -25.9 2.3 | 83 18 -17.8 -2.1 23 338 8839 80 27 -26.6 -4.7 | 64 21 -18.5 -9.0 24 300 9730 80 28 -27.6 -4.9 | 65 22 -19.5 -9.2 25 250 11010 105 25 -24.1 6.5 | 98 16 -16.1 2.1 26 209 12192 105 26 -25.1 6.7 | 98 17 -17.0 2.4 27 200 12500 125 20 -16.4 11.5 | 131 11 -8.3 7.1 28 191 12802 135 16 -11.3 11.3 | 155 8 -3.2 7.0 29 165 13716 120 10 -8.7 5.0 | 139 1 -0.6 0.7 30 150 14300 130 18 -13.8 11.6 | 142 9 -5.7 7.2 31 149 14326 135 14 -9.9 9.9 | 162 6 -1.8 5.6 32 134 14935 110 18 -16.9 6.2 | 102 9 -8.8 1.8 33 115 15850 110 12 -11.3 4.1 | 86 3 -3.2 -0.2 34 100 16640 65 6 -5.4 -2.5 | 339 7 2.6 -6.9 35 98 16764 60 5 -4.3 -2.5 | 331 8 3.7 -6.8 36 97 16807 65 8 -7.3 -3.4 | 354 8 0.8 -7.7 37 88 17374 50 16 -12.3 -10.3 | 16 15 -4.2 -14.6 38 83 17678 30 22 -11.0 -19.1 | 7 24 -2.9 -23.4 39 79 17983 240 18 15.6 9.0 | 259 24 23.7 4.7 40 75 18288 245 15 13.6 6.3 | 265 22 21.7 2.0 41 71 18593 230 11 8.4 7.1 | 261 17 16.5 2.7 42 70 18670 295 27 24.5 -11.4 | 296 36 32.5 -15.7 43 67 18898 290 21 19.7 -7.2 | 292 30 27.8 -11.5 44 64 19202 290 29 27.3 -9.9 | 292 38 35.3 -14.2 45 61 19507 270 42 42.0 -0.0 | 275 50 50.1 -4.3 46 55 20117 245 28 25.4 11.8 | 257 34 33.4 7.5 47 50 20650 275 20 19.9 -1.7 | 282 29 28.0 -6.1 48 47 21031 290 18 16.9 -6.2 | 293 27 25.0 -10.5 49 43 21641 295 24 21.8 -10.1 | 296 33 29.8 -14.5 50 41 21946 275 33 32.9 -2.9 | 280 42 40.9 -7.2 51 37 22555 245 23 20.8 9.7 | 259 29 28.9 5.4 52 35 22860 175 19 -1.7 18.9 | 204 16 6.4 14.6 53 33 23165 170 17 -3.0 16.7 | 202 13 5.1 12.4 54 32 23470 110 12 -11.3 4.1 | 86 3 -3.2 -0.2 55 30 23774 260 13 12.8 2.3 | 276 21 20.9 -2.1 56 30 23800 220 15 9.6 11.5 | 248 19 17.7 7.2 57 28 24079 265 15 14.9 1.3 | 277 23 23.0 -3.0 58 26 24384 180 11 0.0 11.0 | 230 10 8.1 6.7 59 24 24689 115 10 -9.1 4.2 | 84 1 -1.0 -0.1 60 21 25298 45 12 -8.5 -8.5 | 2 13 -0.4 -12.8 61 19 25603 45 15 -10.6 -10.6 | 10 15 -2.5 -14.9 Wind Parameters Mean winds (0-6000m): 88.2 at 12.2 knts Storm direction: 118.2 at 9.2 knts Shear (0-3000m) pos: 1.5 neg: 1.1 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 89.9 deg Storm rel helicity (0-3000m) pos: 54.3 neg: -3.8 tot: 50.6 m^2/s^2 ave: 16.9 10^-3 m/s^2 rel: 0.53 Storm rel vorticity (0-3000m) horiz: 5.4 stream: 2.8 10^-3/s Energy-Hel index: 0.12 Bulk Rich Number: 14.06 Bulk Shear: 32.74 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 ------------------------------------------------------------------------------- 500 267 4 290 12| 4.3 0.0 4.3| 3.6 -1.1 2.5 4.9 0.13| 4.6 0.6 1000 298 5 298 14| 3.5 0.0 3.5| 32.4 -1.1 31.2 31.2 0.61| 6.8 4.1 1500 313 5 303 14| 1.8 0.0 1.8| 35.2 -3.8 31.5 21.0 0.40| 6.7 2.7 2000 348 5 315 13| 1.4 0.9 2.2| 41.3 -3.8 37.6 18.8 0.48| 5.9 2.8 2500 22 5 327 11| 1.1 1.3 2.4| 47.3 -3.8 43.5 17.4 0.50| 5.6 2.8 3000 43 6 337 10| 1.5 1.1 2.6| 54.3 -3.8 50.6 16.9 0.53| 5.4 2.8 4000 70 8 358 7| 1.9 0.8 2.7| 78.5 -4.4 74.1 18.5 0.62| 5.8 3.6 5000 83 10 19 6| 1.8 1.1 2.9| 82.8 -14.8 67.9 13.6 0.45| 5.6 2.5 6000 88 12 41 6| 1.8 1.5 3.3| 93.0 -29.8 63.2 10.5 0.36| 5.8 2.1 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250420.12.gif