UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041900.upa.cvt Date: 0000Z 19 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 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 ------------------------------------------------------------------------------- 0 1000 72 230 1 SFC 999 85 30.0 25.0 75 5.0 26.3 230 1 303.2 307.0 299.4 363.8 20.35 2 990 165 27.4 22.6 75 4.8 23.9 212 3 301.4 304.7 297.4 353.6 17.70 3 975 300 28.0 22.0 70 6.0 23.6 181 6 303.3 306.5 297.7 354.8 17.32 4 925 763 25.2 19.2 69 6.0 20.9 150 2 305.1 307.9 296.8 350.8 15.31 5 898 1024 23.0 19.1 79 3.9 20.2 93 5 305.4 308.3 297.1 352.3 15.68 6 850 1503 21.0 16.0 73 5.0 17.5 105 9 308.1 310.7 296.4 349.2 13.58 7 809 1930 19.2 10.2 56 9.0 13.4 85 11 310.6 312.5 294.4 340.4 9.71 8 719 2934 12.4 8.1 75 4.3 9.7 69 17 313.8 315.6 295.1 343.2 9.47 9 700 3159 11.4 2.4 54 9.0 6.3 75 20 315.1 316.4 293.2 335.6 6.51 10 685 3340 10.8 1.8 54 9.0 5.7 76 21 316.4 317.6 293.4 336.6 6.37 11 648 3799 7.2 4.0 80 3.2 5.3 78 25 317.4 318.9 294.9 342.4 7.90 12 631 4018 6.8 0.8 66 6.0 3.4 79 27 319.4 320.6 294.3 340.0 6.44 13 628 4057 7.0 0.0 61 7.0 3.1 79 27 320.0 321.2 294.2 339.7 6.10 14 518 5610 -3.5 -4.4 93 0.9 -4.0 76 26 325.5 326.5 295.0 343.1 5.34 15 509 5749 -3.3 -6.3 80 3.0 -4.8 76 25 327.3 328.3 295.0 343.0 4.70 16 500 5890 -3.9 -7.7 75 3.8 -5.7 75 23 328.3 329.1 295.0 342.7 4.29 17 476 6277 -6.1 -10.9 69 4.8 -8.2 74 21 330.2 330.9 294.8 342.1 3.50 18 452 6681 -8.3 -11.3 79 3.0 -9.6 70 21 332.4 333.1 295.4 344.6 3.57 19 444 6820 -8.9 -15.9 57 7.0 -11.6 77 20 333.3 333.8 294.8 342.0 2.49 20 416 7321 -12.7 -13.2 96 0.5 -12.9 75 20 334.7 335.4 295.8 346.3 3.33 21 400 7620 -14.3 -22.3 51 8.0 -16.8 100 19 336.4 336.7 294.8 342.2 1.60 22 385 7910 -15.7 -36.7 15 21.0 -19.9 105 19 338.3 338.3 294.3 339.9 0.43 23 383 7949 -15.9 -25.9 42 10.0 -18.7 106 19 338.5 338.8 295.0 343.0 1.21 24 376 8089 -16.7 -35.7 18 19.0 -20.6 110 20 339.2 339.3 294.6 341.1 0.48 25 372 8169 -17.5 -29.5 34 12.0 -20.4 113 21 339.2 339.4 294.9 342.6 0.89 26 364 8332 -18.5 -39.5 14 21.0 -22.2 115 20 340.0 340.1 294.6 341.3 0.34 27 337 8904 -22.7 -33.7 36 11.0 -24.9 111 15 341.8 342.0 295.4 344.4 0.66 28 329 9081 -23.5 -50.5 6 27.0 -26.6 110 14 343.1 343.1 295.2 343.6 0.11 29 318 9329 -25.7 -41.7 21 16.0 -28.0 104 16 343.4 343.5 295.4 344.6 0.31 30 316 9375 -25.9 -30.7 64 4.8 -26.9 103 16 343.7 343.9 296.0 347.3 0.94 31 314 9421 -26.3 -34.3 47 8.0 -27.8 101 17 343.8 343.9 295.8 346.4 0.67 32 306 9608 -27.9 -29.7 85 1.8 -28.3 95 20 344.1 344.3 296.2 348.1 1.06 33 300 9750 -28.7 -36.7 46 8.0 -30.0 90 22 344.9 345.0 296.0 347.1 0.55 34 297 9822 -29.3 -35.3 56 6.0 -30.3 88 22 345.1 345.2 296.1 347.6 0.64 35 291 9968 -29.9 -38.9 41 9.0 -31.2 85 22 346.2 346.3 296.2 348.0 0.45 36 288 10041 -30.7 -33.2 79 2.5 -31.2 84 23 346.1 346.3 296.5 349.2 0.81 37 284 10141 -31.5 -37.5 55 6.0 -32.4 82 23 346.4 346.5 296.3 348.5 0.54 38 273 10419 -33.9 -37.0 73 3.1 -34.3 76 23 346.8 346.9 296.4 349.1 0.59 39 254 10921 -37.9 -53.9 17 16.0 -39.0 78 22 348.1 348.2 296.3 348.6 0.10 40 250 11030 -39.1 -52.1 24 13.0 -40.0 70 21 347.9 348.0 296.3 348.5 0.12 41 249 11057 -39.3 -52.3 24 13.0 -40.2 68 21 348.0 348.1 296.3 348.5 0.12 42 246 11140 -39.5 -41.7 79 2.2 -39.7 63 21 348.9 349.0 296.7 350.6 0.40 43 244 11196 -39.7 -46.7 47 7.0 -40.3 60 21 349.5 349.5 296.7 350.4 0.23 44 238 11365 -41.1 -51.1 33 10.0 -41.8 58 21 349.8 349.9 296.7 350.5 0.15 45 229 11625 -43.1 -52.1 37 9.0 -43.6 66 22 350.7 350.7 296.9 351.2 0.14 46 200 12520 -50.7 -55.4 57 4.7 -50.9 95 29 352.5 352.5 297.3 352.9 0.10 47 164 13776 -62.5 -64.9 73 2.4 -62.6 99 32 353.3 353.3 297.4 353.4 0.04 48 150 14320 -67.1 -70.6 61 3.5 -67.1 85 26 354.5 354.5 297.6 354.6 0.02 49 143 14607 -68.9 -77.9 26 9.0 -68.9 85 26 356.2 356.2 298.0 356.3 0.01 50 124 15450 -73.1 -86.1 12 13.0 -73.2 110 4 363.4 363.4 299.4 363.4 0.00 51 101 16624 -82.1 -88.1 35 6.0 -82.1 36 3 368.1 368.1 300.2 368.1 0.00 52 100 16680 -82.3 -88.3 35 6.0 -82.3 45 2 368.7 368.7 300.4 368.7 0.00 53 78 18051 -86.5 -90.0 53 3.5 -86.5 175 10 387.2 387.2 303.3 387.2 0.00 54 75 18265 -85.3 -92.3 27 7.0 -85.3 175 10 394.0 394.0 304.4 394.0 0.00 55 71 18577 -72.3 -89.3 6 17.0 -72.4 338 11 428.0 428.0 308.6 428.0 0.00 56 70 18660 -72.7 -93.7 3 21.0 -72.8 330 23 428.9 428.9 308.7 428.9 0.00 57 50 20660 -68.3 -90.3 3 22.0 -68.5 265 15 482.5 482.5 313.7 482.5 0.00 58 47 21031 -68.5 -90.5 3 22.0 -68.7 265 15 490.7 490.7 314.2 490.7 0.00 TRP 78 18051 -86.5 -90.0 53 3.5 -86.5 175 10 387.2 387.2 303.3 387.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5818.00 m Freezing level: 554.67 mb = 5092.55 m = 16707.65 ft Wetbulb zero: 579.51 mb = 4705.24 m = 15436.96 ft Precipitable water: 2.17 inches Sfc-500 mean rel hum: 71.28 % Est. max temperature: 34.97 C = 94.94 F Sfc-Lift cond lev (LCL): 929.72 mb = 718.22 m = 2356.33 ft T: 25.47 C 700-500 lapse rate: 5.60 C/km ThetaE index: 11.95 C Layer 850.0- 719.0 mb Conv cond level (CCL): 790.54 mb = 2126.72 m = 6977.33 ft Mean mixing ratio: 16.50 g/kg Conv temperature: 38.02 C = 100.43 F Cap Strength: 2.53 C Lifted Index: -2.10 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.06 C Lifted Index @700 mb: -0.05 C Showalter Index: -0.67 C Risk: Thunderstorms probable Total Totals Index: 44.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.90 C Cross Totals Index: 19.90 C K Index: 31.90 Risk: 60-80 % chance of thunderstorms Sweat Index: 233.00 Risk: None Energy Index: -1.31 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 611.12 J/kg Max Up Vert Vel: 34.96 m/s Conv Inhibition (B-): 123.58 J/kg Cap Strength: 2.53 C Lift Cond Lev (LCL): 875.13 mb = 1248.65 m = 4096.57 ft Lev Free Conv (LFC): 710.13 mb = 3038.35 m = 9968.23 ft Equ Level (EL): 690.13 mb = 3277.42 m = 10752.57 ft B at Equ Level: 11.97 J/kg Max Parcel Lev (MPL): 100.13 mb = 16672.58 m = 54699.39 ft Wind level data Storm motion: 110 at 14 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 ---------------------------------------------------------- 0 999 85 230 1 0.8 0.6 | 286 14 13.7 -4.1 1 974 305 180 6 0.0 6.0 | 264 13 12.9 1.3 2 941 610 195 2 0.5 1.9 | 282 14 13.4 -2.8 3 925 763 150 2 -1.0 1.7 | 284 12 11.9 -3.0 4 909 914 90 4 -4.0 0.0 | 298 10 8.9 -4.7 5 850 1503 105 9 -8.7 2.3 | 299 5 4.2 -2.4 6 818 1829 80 10 -9.8 -1.7 | 334 7 3.1 -6.4 7 789 2134 95 14 -13.9 1.2 | 16 4 -1.0 -3.5 8 762 2438 90 13 -13.0 0.0 | 1 5 -0.1 -4.7 9 735 2743 60 13 -11.3 -6.5 | 352 11 1.7 -11.2 10 709 3048 75 19 -18.4 -4.9 | 29 11 -5.4 -9.6 11 700 3159 75 20 -19.3 -5.2 | 33 12 -6.4 -9.9 12 611 4267 80 29 -28.6 -5.0 | 58 18 -15.6 -9.7 13 588 4572 70 32 -30.1 -10.9 | 48 23 -17.1 -15.6 14 566 4877 80 34 -33.5 -5.9 | 63 23 -20.6 -10.6 15 500 5890 75 23 -22.2 -6.0 | 41 14 -9.3 -10.6 16 487 6096 75 21 -20.3 -5.4 | 36 13 -7.4 -10.1 17 450 6706 70 21 -19.7 -7.2 | 30 14 -6.8 -11.9 18 433 7010 90 18 -18.0 0.0 | 47 7 -5.1 -4.7 19 416 7315 75 20 -19.3 -5.2 | 33 12 -6.4 -9.9 20 400 7620 100 19 -18.7 3.3 | 76 6 -5.8 -1.4 21 384 7925 105 19 -18.4 4.9 | 92 5 -5.4 0.2 22 368 8230 115 21 -19.0 8.9 | 124 7 -6.1 4.2 23 326 9144 110 13 -12.2 4.4 | 289 1 0.7 -0.2 24 300 9750 90 22 -22.0 0.0 | 63 10 -9.1 -4.7 25 263 10668 70 24 -22.6 -8.2 | 37 16 -9.6 -12.9 26 252 10973 80 21 -20.7 -3.6 | 43 11 -7.8 -8.3 27 250 11030 70 21 -19.7 -7.2 | 30 14 -6.8 -11.9 28 241 11278 55 21 -17.2 -12.0 | 14 17 -4.3 -16.7 29 201 12497 95 24 -23.9 2.1 | 77 11 -11.0 -2.6 30 200 12520 95 29 -28.9 2.5 | 82 16 -16.0 -2.2 31 165 13716 100 32 -31.5 5.6 | 93 19 -18.6 0.9 32 150 14320 85 26 -25.9 -2.3 | 62 15 -13.0 -7.0 33 142 14630 85 26 -25.9 -2.3 | 62 15 -13.0 -7.0 34 135 14935 105 18 -17.4 4.7 | 90 4 -4.5 -0.0 35 128 15240 95 10 -10.0 0.9 | 322 5 3.0 -3.8 36 122 15545 120 1 -0.9 0.5 | 289 13 12.1 -4.2 37 109 16154 320 11 7.1 -8.4 | 303 24 20.0 -13.1 38 100 16680 45 2 -1.4 -1.4 | 298 13 11.5 -6.1 39 98 16764 45 2 -1.4 -1.4 | 298 13 11.5 -6.1 40 88 17374 135 11 -7.8 7.8 | 239 6 5.2 3.1 41 83 17678 215 2 1.1 1.6 | 282 14 14.1 -3.1 42 79 17983 210 11 5.5 9.5 | 255 19 18.4 4.8 43 78 18051 175 10 -0.9 10.0 | 246 13 12.1 5.3 44 75 18288 175 10 -0.9 10.0 | 246 13 12.1 5.3 45 71 18593 345 11 2.8 -10.6 | 314 22 15.8 -15.3 46 70 18660 330 23 11.5 -19.9 | 315 35 24.4 -24.6 47 67 18898 325 19 10.9 -15.6 | 310 31 23.8 -20.3 48 64 19202 270 19 19.0 -0.0 | 278 32 31.9 -4.7 49 61 19507 260 35 34.5 6.1 | 268 47 47.4 1.4 50 55 20117 250 24 22.6 8.2 | 264 36 35.5 3.5 51 52 20422 265 21 20.9 1.8 | 275 34 33.8 -2.9 52 50 20660 265 15 14.9 1.3 | 277 28 27.9 -3.4 53 46 21031 265 15 14.9 1.3 | 277 28 27.9 -3.4 54 44 21336 290 8 7.5 -2.7 | 290 22 20.4 -7.4 Wind Parameters Mean winds (0-6000m): 80.0 at 18.3 knts Storm direction: 110.0 at 13.8 knts Shear (0-3000m) pos: 0.7 neg: 2.9 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 104.2 deg Storm rel helicity (0-3000m) pos: 52.9 neg: -21.8 tot: 31.1 m^2/s^2 ave: 10.4 10^-3 m/s^2 rel: 0.34 Storm rel vorticity (0-3000m) horiz: 7.2 stream: 2.4 10^-3/s Energy-Hel index: 0.12 Bulk Rich Number: 11.91 Bulk Shear: 51.33 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 ------------------------------------------------------------------------------- 500 185 4 274 13| 0.0 1.7 1.7| 11.6 -18.5 -6.9 -13.8 -0.20| 8.8 -1.8 1000 156 4 277 12| 0.0 3.2 3.2| 22.4 -18.5 3.9 3.9 0.13| 7.7 1.0 1500 124 5 283 9| 1.3 2.1 3.4| 24.1 -18.7 5.4 3.6 0.15| 6.7 1.0 2000 106 6 293 7| 1.0 2.7 3.7| 31.9 -18.7 13.1 6.6 0.31| 6.8 2.1 2500 100 8 302 6| 0.8 2.2 3.0| 32.4 -20.4 12.0 4.8 0.24| 6.5 1.6 3000 91 9 320 6| 0.7 2.9 3.6| 52.9 -21.8 31.1 10.4 0.34| 7.2 2.4 4000 84 13 358 6| 1.6 2.2 3.8| 74.8 -21.8 53.0 13.3 0.40| 6.4 2.6 5000 81 17 26 8| 1.5 2.3 3.8|113.7 -47.3 66.4 13.3 0.33| 6.7 2.3 6000 80 18 33 9| 1.2 1.2 2.4|113.7 -76.6 37.1 6.2 0.20| 6.5 1.3 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250419.00.gif