UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042112.upa.cvt Date: 1200Z 21 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 21 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 24.4 23.2 93 1.2 23.6 120 2 297.4 300.7 296.6 350.0 18.15 1 1000 96 24.4 23.4 94 1.0 23.7 360 3 297.5 300.9 296.8 351.0 18.41 2 986 220 25.0 24.3 96 0.7 24.5 333 3 299.4 303.0 298.1 357.2 19.76 3 947 576 24.4 22.1 87 2.3 22.8 315 7 302.2 305.5 297.8 355.3 17.96 4 925 783 23.4 20.1 82 3.3 21.1 305 9 303.2 306.2 296.9 351.3 16.22 5 850 1518 18.6 15.9 84 2.7 16.8 290 4 305.6 308.1 295.7 346.0 13.49 6 786 2186 14.0 12.5 91 1.5 13.0 136 6 307.6 309.8 295.0 342.9 11.67 7 732 2785 11.0 7.9 81 3.1 9.1 110 8 310.7 312.4 294.0 338.8 9.18 8 700 3158 9.4 3.4 66 6.0 5.9 105 9 312.9 314.2 293.0 334.7 7.00 9 658 3669 7.0 -9.0 31 16.0 -0.2 85 12 315.8 316.3 290.4 325.3 2.94 10 641 3884 5.6 -3.4 52 9.0 1.0 95 10 316.6 317.5 292.1 331.4 4.64 11 577 4738 1.2 -10.8 40 12.0 -4.0 95 16 321.1 321.6 291.9 330.7 2.91 12 561 4965 0.4 -5.6 64 6.0 -2.6 101 22 322.7 323.6 293.7 337.5 4.49 13 558 5008 0.0 -5.0 69 5.0 -2.5 99 23 322.7 323.7 293.9 338.3 4.73 14 516 5631 -3.3 -12.3 50 9.0 -7.1 80 22 326.1 326.6 293.3 335.8 2.88 15 500 5880 -4.9 -5.4 96 0.5 -5.1 75 20 327.1 328.1 295.3 344.1 5.12 16 495 5959 -5.5 -5.7 98 0.2 -5.6 73 19 327.3 328.3 295.3 344.1 5.06 17 440 6872 -11.1 -11.4 98 0.3 -11.2 73 15 331.4 332.1 295.3 343.8 3.64 18 407 7468 -13.3 -18.3 66 5.0 -15.0 66 13 336.0 336.5 295.3 343.9 2.22 19 400 7600 -14.5 -18.9 69 4.4 -16.0 65 12 336.1 336.6 295.2 343.8 2.15 20 340 8808 -24.7 -24.9 98 0.2 -24.8 27 5 338.2 338.6 295.2 343.7 1.49 21 308 9522 -28.7 -31.0 81 2.3 -29.2 3 13 342.3 342.5 295.7 345.9 0.94 22 300 9710 -30.3 -32.2 83 1.9 -30.6 10 13 342.7 342.9 295.7 345.9 0.86 23 284 10098 -33.1 -37.2 67 4.1 -33.7 25 14 344.1 344.2 295.8 346.2 0.55 24 267 10528 -36.9 -39.3 78 2.4 -37.2 30 16 344.7 344.8 295.8 346.5 0.47 25 263 10632 -37.7 -40.9 72 3.2 -38.1 26 17 345.0 345.1 295.8 346.6 0.41 26 250 10980 -40.1 -49.1 38 9.0 -40.8 35 17 346.4 346.5 296.0 347.2 0.18 27 249 11007 -40.1 -49.1 38 9.0 -40.8 36 17 346.8 346.9 296.1 347.6 0.18 28 233 11459 -43.7 -52.7 36 9.0 -44.2 47 12 348.0 348.1 296.3 348.6 0.12 29 200 12470 -51.7 -63.7 22 12.0 -52.0 85 24 350.9 350.9 296.8 351.1 0.04 30 174 13352 -59.5 -68.5 30 9.0 -59.6 83 24 352.3 352.3 297.1 352.4 0.02 31 171 13460 -59.9 -74.9 12 15.0 -60.0 86 22 353.4 353.4 297.4 353.4 0.01 32 160 13869 -63.9 -71.9 33 8.0 -64.0 100 16 353.4 353.4 297.4 353.5 0.01 33 154 14101 -65.3 -71.3 43 6.0 -65.4 111 13 354.9 354.9 297.7 355.0 0.02 34 150 14260 -65.9 -76.9 20 11.0 -66.0 125 14 356.6 356.6 298.0 356.6 0.01 35 145 14466 -67.1 -78.1 20 11.0 -67.2 125 12 357.9 358.0 298.3 358.0 0.01 36 122 15491 -75.9 -81.9 38 6.0 -75.9 200 11 360.0 360.0 298.7 360.0 0.00 37 101 16574 -80.3 -88.3 25 8.0 -80.3 32 17 371.5 371.5 300.8 371.5 0.00 38 100 16630 -80.7 -88.7 25 8.0 -80.7 25 17 371.8 371.8 300.9 371.8 0.00 39 94 16975 -82.5 -88.5 35 6.0 -82.5 25 19 374.9 374.9 301.4 374.9 0.00 40 87 17411 -76.7 -88.7 13 12.0 -76.7 353 14 395.0 395.0 304.5 395.0 0.00 41 81 17819 -76.5 -89.5 11 13.0 -76.5 229 11 403.5 403.5 305.7 403.5 0.00 42 70 18650 -79.1 -90.1 15 11.0 -79.1 280 23 415.2 415.2 307.2 415.2 0.00 43 65 19075 -77.3 -91.3 9 14.0 -77.3 284 22 428.0 428.0 308.6 428.0 0.00 44 63 19257 -73.7 -90.7 6 17.0 -73.7 282 23 439.8 439.8 309.8 439.8 0.00 45 52 20393 -69.7 -91.7 3 22.0 -69.9 231 14 473.9 473.9 313.0 473.9 0.00 46 50 20630 -64.9 -91.9 1 27.0 -65.2 285 26 490.5 490.5 314.2 490.6 0.00 47 49 20753 -64.5 -91.5 1 27.0 -64.8 280 21 494.3 494.3 314.5 494.3 0.00 48 43 21553 -62.7 -90.7 1 28.0 -63.2 275 32 517.6 517.6 316.1 517.6 0.00 49 37 22474 -64.7 -91.7 1 27.0 -65.1 255 25 535.2 535.2 317.2 535.2 0.00 50 31 23557 -62.9 -91.9 1 29.0 -63.6 261 19 567.8 567.8 319.0 567.8 0.00 51 30 23760 -60.3 -91.3 1 31.0 -61.2 275 11 580.3 580.3 319.7 580.3 0.00 52 28 24191 -60.1 -92.1 1 32.0 -61.1 308 7 592.4 592.4 320.3 592.4 0.00 53 26 24662 -53.3 -89.3 0 36.0 -55.4 99 9 624.4 624.4 321.7 624.4 0.01 54 23 25445 -57.3 -89.3 1 32.0 -58.9 92 30 634.9 634.9 322.1 634.9 0.01 55 22 25729 -52.7 -88.7 1 36.0 -55.3 89 32 656.7 656.7 322.9 656.8 0.01 56 20 26340 -56.5 -88.5 1 32.0 -58.4 115 36 663.2 663.2 323.2 663.3 0.01 57 19 26665 -57.5 -89.5 1 32.0 -59.3 115 36 669.9 669.9 323.4 670.0 0.01 58 18 27009 -53.9 -88.9 1 35.0 -56.6 115 35 691.7 691.7 324.1 691.8 0.01 TRP 94 16975 -82.5 -88.5 35 6.0 -82.5 25 19 374.9 374.9 301.4 374.9 0.00 WND Sounding variables and indices 1000-500 mb thick: 5784.00 m Freezing level: 558.00 mb = 5007.54 m = 16428.73 ft Wetbulb zero: 659.27 mb = 3653.37 m = 11985.96 ft Precipitable water: 2.18 inches Sfc-500 mean rel hum: 69.35 % Est. max temperature: 32.59 C = 90.66 F Sfc-Lift cond lev (LCL): 985.05 mb = 228.91 m = 751.01 ft T: 24.99 C 700-500 lapse rate: 5.25 C/km ThetaE index: 31.84 C Layer 947.0- 641.0 mb Conv cond level (CCL): 883.69 mb = 1180.12 m = 3871.73 ft Mean mixing ratio: 17.75 g/kg Conv temperature: 31.56 C = 88.81 F Cap Strength: 1.74 C Lifted Index: -3.28 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -4.01 C Lifted Index @700 mb: -2.22 C Showalter Index: -0.47 C Risk: Thunderstorms probable Total Totals Index: 44.30 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.50 C Cross Totals Index: 20.80 C K Index: 33.40 Risk: 60-80 % chance of thunderstorms Sweat Index: 218.80 Risk: None Energy Index: -0.48 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1357.28 J/kg Max Up Vert Vel: 52.10 m/s Conv Inhibition (B-): 29.22 J/kg Cap Strength: 1.74 C Lift Cond Lev (LCL): 923.16 mb = 800.30 m = 2625.61 ft Lev Free Conv (LFC): 848.16 mb = 1536.47 m = 5040.86 ft Equ Level (EL): 158.16 mb = 13938.93 m = 45730.85 ft B at Equ Level: 1350.78 J/kg Max Parcel Lev (MPL): 78.16 mb = 18022.41 m = 59127.94 ft Wind level data Storm motion: 119 at 8 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 85 120 2 -1.7 1.0 | 299 6 5.3 -3.0 1 1000 96 360 3 -0.0 -3.0 | 315 10 7.1 -7.0 2 977 305 315 3 2.1 -2.1 | 304 11 9.2 -6.1 3 943 610 315 7 4.9 -4.9 | 307 15 12.0 -8.9 4 925 783 305 9 7.4 -5.2 | 302 17 14.4 -9.1 5 911 914 290 8 7.5 -2.7 | 295 16 14.6 -6.7 6 850 1518 290 4 3.8 -1.4 | 296 12 10.8 -5.3 7 790 2134 140 6 -3.9 4.6 | 259 3 3.2 0.6 8 762 2438 115 7 -6.3 3.0 | 325 1 0.7 -1.0 9 700 3158 105 9 -8.7 2.3 | 45 2 -1.6 -1.6 10 658 3658 85 12 -12.0 -1.0 | 44 7 -4.9 -5.0 11 610 4267 115 6 -5.4 2.5 | 311 2 1.6 -1.4 12 588 4572 85 11 -11.0 -1.0 | 38 6 -3.9 -4.9 13 566 4877 105 21 -20.3 5.4 | 96 13 -13.2 1.5 14 545 5182 90 25 -25.0 0.0 | 78 18 -17.9 -4.0 15 500 5880 75 20 -19.3 -5.2 | 53 15 -12.3 -9.1 16 486 6096 70 17 -16.0 -5.8 | 42 13 -8.9 -9.8 17 467 6401 65 18 -16.3 -7.6 | 39 15 -9.3 -11.6 18 449 6706 75 16 -15.5 -4.1 | 46 12 -8.4 -8.1 19 400 7600 65 12 -10.9 -5.1 | 23 10 -3.8 -9.0 20 399 7620 55 15 -12.3 -8.6 | 23 14 -5.2 -12.6 21 367 8230 70 11 -10.3 -3.8 | 23 8 -3.3 -7.7 22 352 8534 65 11 -10.0 -4.6 | 19 9 -2.9 -8.6 23 338 8839 20 4 -1.4 -3.8 | 324 10 5.7 -7.7 24 324 9144 10 11 -1.9 -10.8 | 341 16 5.1 -14.8 25 311 9449 360 13 -0.0 -13.0 | 337 18 7.1 -17.0 26 300 9710 10 13 -2.3 -12.8 | 344 17 4.8 -16.8 27 273 10363 35 14 -8.0 -11.5 | 4 15 -1.0 -15.4 28 261 10668 25 18 -7.6 -16.3 | 2 20 -0.6 -20.3 29 250 10973 20 17 -5.8 -16.0 | 356 20 1.2 -19.9 30 250 10980 35 17 -9.8 -13.9 | 9 18 -2.7 -17.9 31 228 11582 50 10 -7.7 -6.4 | 3 10 -0.6 -10.4 32 209 12192 85 17 -16.9 -1.5 | 61 11 -9.9 -5.4 33 200 12470 85 24 -23.9 -2.1 | 70 18 -16.9 -6.1 34 181 13106 75 28 -27.0 -7.2 | 61 23 -20.0 -11.2 35 156 14021 105 13 -12.6 3.4 | 84 6 -5.5 -0.6 36 150 14260 125 14 -11.5 8.0 | 133 6 -4.4 4.1 37 141 14630 125 10 -8.2 5.7 | 147 2 -1.1 1.8 38 134 14935 190 4 0.7 3.9 | 270 8 7.7 -0.0 39 127 15240 215 11 6.3 9.0 | 249 14 13.4 5.0 40 114 15850 175 11 -1.0 11.0 | 221 9 6.1 7.0 41 108 16154 80 10 -9.8 -1.7 | 26 6 -2.8 -5.7 42 103 16459 45 18 -12.7 -12.7 | 19 18 -5.7 -16.7 43 100 16630 25 17 -7.2 -15.4 | 0 19 -0.1 -19.4 44 98 16764 25 17 -7.2 -15.4 | 0 19 -0.1 -19.4 45 94 16975 25 19 -8.0 -17.2 | 3 21 -1.0 -21.2 46 92 17069 30 21 -10.5 -18.2 | 9 22 -3.4 -22.1 47 88 17374 15 15 -3.9 -14.5 | 350 19 3.2 -18.5 48 83 17678 210 10 5.0 8.7 | 249 13 12.1 4.7 49 79 17983 250 13 12.2 4.4 | 269 19 19.3 0.5 50 75 18288 235 27 22.1 15.5 | 248 31 29.2 11.5 51 70 18650 280 23 22.7 -4.0 | 285 31 29.7 -8.0 52 64 19202 285 22 21.3 -5.7 | 289 30 28.3 -9.7 53 61 19507 270 25 25.0 -0.0 | 277 32 32.1 -4.0 54 57 19812 245 19 17.2 8.0 | 260 25 24.3 4.1 55 55 20117 250 10 9.4 3.4 | 272 16 16.4 -0.5 56 52 20422 230 14 10.7 9.0 | 254 18 17.8 5.0 57 50 20630 285 26 25.1 -6.7 | 288 34 32.2 -10.7 58 49 20726 280 21 20.7 -3.6 | 285 29 27.7 -7.6 59 42 21641 275 33 32.9 -2.9 | 280 41 39.9 -6.8 60 40 21946 255 27 26.1 7.0 | 265 33 33.1 3.0 61 31 23470 255 22 21.3 5.7 | 266 28 28.3 1.7 62 30 23760 275 11 11.0 -1.0 | 285 19 18.0 -4.9 63 30 23774 245 12 10.9 5.1 | 266 18 17.9 1.1 64 29 24079 275 11 11.0 -1.0 | 285 19 18.0 -4.9 65 27 24384 0 0 -0.0 -0.0 | 299 8 7.1 -4.0 66 26 24689 105 10 -9.7 2.6 | 62 3 -2.6 -1.4 67 25 24994 85 28 -27.9 -2.4 | 73 22 -20.8 -6.4 68 22 25603 95 31 -30.9 2.7 | 87 24 -23.8 -1.3 69 21 25908 80 33 -32.5 -5.7 | 69 27 -25.4 -9.7 70 20 26340 115 36 -32.6 15.2 | 114 28 -25.6 11.3 71 17 26822 115 35 -31.7 14.8 | 114 27 -24.7 10.8 72 16 27127 95 43 -42.8 3.7 | 90 36 -35.8 -0.2 Wind Parameters Mean winds (0-6000m): 89.3 at 10.8 knts Storm direction: 119.3 at 8.1 knts Shear (0-3000m) pos: 0.0 neg: 1.2 tot: 1.2 10-3/s Storm rel Dir Shear (0-3000m): 103.3 deg Storm rel helicity (0-3000m) pos: 7.6 neg: -37.8 tot: -30.2 m^2/s^2 ave: -10.1 10^-3 m/s^2 rel: -0.15 Storm rel vorticity (0-3000m) horiz: 6.3 stream: -1.0 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 55.70 Bulk Shear: 24.37 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 ------------------------------------------------------------------------------- 500 322 4 307 12| 0.0 8.9 8.9| 4.8 -3.0 1.8 3.5 0.10| 9.8 1.0 1000 307 6 303 14| 0.0 4.6 4.6| 5.0 -17.3 -12.3 -12.3 -0.15| 8.0 -1.2 1500 302 6 300 14| 0.0 2.1 2.1| 5.9 -21.1 -15.1 -10.1 -0.16| 6.7 -1.1 2000 294 6 297 14| 0.0 1.1 1.1| 5.9 -37.8 -31.9 -15.9 -0.31| 7.8 -2.4 2500 291 6 296 14| 0.0 1.1 1.1| 7.1 -37.8 -30.7 -12.3 -0.20| 7.2 -1.4 3000 325 6 310 14| 0.0 1.2 1.2| 7.6 -37.8 -30.2 -10.1 -0.15| 6.3 -1.0 4000 93 7 2 4| 0.6 1.3 1.9| 7.8 -39.5 -31.7 -7.9 -0.15| 6.0 -0.9 5000 96 8 24 3| 1.0 1.5 2.5| 31.2 -53.4 -22.2 -4.4 0.00| 7.3 0.0 6000 89 11 42 6| 0.8 1.2 2.0| 31.2-102.5 -71.3 -11.9 -0.13| 7.2 -1.0 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250421.12.gif