UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041700.upa.cvt Date: 0000Z 17 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 17 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 59 130 2 SFC 998 85 28.0 24.0 79 4.0 25.0 130 2 301.3 304.8 298.2 357.8 19.15 2 991 147 29.6 22.6 66 7.0 24.5 136 3 303.5 306.8 297.9 356.1 17.68 3 925 753 25.0 19.0 69 6.0 20.8 55 5 304.9 307.7 296.6 350.0 15.12 4 850 1490 19.4 15.5 78 3.9 16.7 80 9 306.5 308.9 295.7 346.0 13.14 5 825 1747 17.6 14.8 84 2.8 15.7 73 10 307.2 309.6 295.8 346.2 12.94 6 750 2557 13.0 10.5 85 2.5 11.4 75 9 310.7 312.7 295.1 343.4 10.70 7 725 2842 12.2 7.9 75 4.3 9.5 83 11 312.8 314.6 294.7 341.5 9.27 8 715 2959 12.2 5.2 62 7.0 8.0 93 11 314.1 315.6 293.9 338.4 7.78 9 700 3137 11.8 4.8 62 7.0 7.6 95 11 315.6 317.0 294.3 339.8 7.73 10 654 3704 9.4 1.4 57 8.0 4.8 77 12 319.0 320.3 294.3 339.8 6.49 11 572 4801 2.0 -1.3 79 3.3 0.2 94 15 322.8 324.0 295.0 342.6 6.09 12 500 5880 -2.3 -11.3 50 9.0 -6.2 85 17 330.2 330.9 294.6 341.3 3.23 13 469 6386 -4.7 -16.7 38 12.0 -9.4 82 17 333.4 333.8 294.6 341.1 2.21 14 403 7563 -11.9 -27.9 25 16.0 -16.3 85 12 338.8 339.0 294.9 342.4 0.96 15 400 7620 -12.5 -24.5 36 12.0 -16.1 85 12 338.7 339.0 295.2 343.6 1.31 16 347 8685 -21.1 -29.1 49 8.0 -23.0 71 13 341.2 341.4 295.5 344.9 0.99 17 323 9209 -25.7 -36.7 35 11.0 -27.6 67 11 341.9 342.0 295.3 343.8 0.51 18 319 9299 -26.1 -42.1 21 16.0 -28.3 67 11 342.5 342.6 295.2 343.7 0.30 19 309 9528 -27.9 -35.9 46 8.0 -29.2 69 11 343.1 343.3 295.6 345.4 0.58 20 300 9740 -28.9 -40.9 31 12.0 -30.6 70 11 344.6 344.7 295.7 346.1 0.36 21 263 10670 -36.5 -60.5 7 24.0 -37.9 65 17 346.7 346.7 296.0 346.9 0.04 22 257 10830 -37.9 -52.9 19 15.0 -38.9 69 20 347.0 347.0 296.1 347.4 0.11 23 250 11020 -39.1 -57.1 13 18.0 -40.1 75 24 347.9 347.9 296.3 348.2 0.07 24 226 11702 -43.7 -67.7 5 24.0 -44.5 63 22 351.1 351.1 296.9 351.2 0.02 25 218 11943 -44.9 -66.9 7 22.0 -45.6 54 19 352.9 352.9 297.3 353.0 0.02 26 200 12510 -49.9 -69.9 8 20.0 -50.4 325 8 353.8 353.8 297.4 353.8 0.02 27 159 13965 -63.3 -75.3 18 12.0 -63.4 248 13 355.1 355.1 297.7 355.1 0.01 28 150 14320 -66.7 -73.7 37 7.0 -66.8 180 7 355.2 355.2 297.7 355.2 0.01 29 140 14733 -70.7 -75.0 53 4.3 -70.7 204 11 355.2 355.2 297.8 355.3 0.01 30 137 14861 -71.7 -76.0 52 4.3 -71.7 192 10 355.7 355.7 297.8 355.7 0.01 31 102 16541 -85.3 -88.8 53 3.5 -85.3 58 10 360.9 360.9 298.9 360.9 0.00 32 101 16595 -85.7 -89.2 53 3.5 -85.7 54 10 361.1 361.1 298.9 361.1 0.00 33 100 16650 -85.9 -89.5 52 3.6 -85.9 50 10 361.8 361.8 299.1 361.8 0.00 34 95 16931 -86.9 -90.5 51 3.6 -86.9 40 7 365.1 365.1 299.7 365.2 0.00 35 86 17484 -80.5 -88.5 25 8.0 -80.5 111 7 388.6 388.6 303.6 388.6 0.00 36 83 17688 -74.5 -86.5 14 12.0 -74.6 159 4 404.8 404.8 305.9 404.8 0.00 37 74 18349 -78.5 -89.5 15 11.0 -78.5 263 22 409.9 409.9 306.5 409.9 0.00 38 72 18507 -75.5 -88.5 11 13.0 -75.6 271 21 419.5 419.5 307.6 419.5 0.00 39 70 18670 -76.1 -89.1 11 13.0 -76.2 260 30 421.6 421.6 307.9 421.6 0.00 40 63 19277 -78.3 -90.3 13 12.0 -78.3 250 20 429.6 429.6 308.8 429.6 0.00 41 56 19956 -74.9 -90.9 7 16.0 -75.0 257 20 452.1 452.1 311.1 452.1 0.00 42 50 20630 -66.5 -89.5 3 23.0 -66.8 270 16 486.8 486.8 314.0 486.8 0.00 43 44 21408 -64.5 -88.5 2 24.0 -64.8 269 30 509.8 509.8 315.7 509.8 0.00 44 37 22462 -66.5 -90.5 2 24.0 -66.8 279 20 530.6 530.6 316.9 530.6 0.00 45 32 23351 -61.5 -88.5 2 27.0 -62.2 305 9 566.4 566.4 319.0 566.5 0.00 46 30 23750 -63.1 -89.1 2 26.0 -63.7 265 16 572.6 572.6 319.3 572.6 0.00 47 29 23958 -63.3 -89.3 2 26.0 -63.9 265 17 577.6 577.6 319.6 577.7 0.00 48 26 24637 -58.5 -87.5 1 29.0 -59.7 251 14 609.6 609.6 321.0 609.7 0.01 49 26 24637 -58.5 -87.5 1 29.0 -59.7 251 14 609.6 609.6 321.0 609.7 0.01 TRP 95 16931 -86.9 -90.5 51 3.6 -86.9 40 7 365.1 365.1 299.7 365.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5821.00 m Freezing level: 538.51 mb = 5303.04 m = 17398.20 ft Wetbulb zero: 569.82 mb = 4832.01 m = 15852.86 ft Precipitable water: 2.13 inches Sfc-500 mean rel hum: 70.42 % Est. max temperature: 33.20 C = 91.76 F Sfc-Lift cond lev (LCL): 942.21 mb = 590.95 m = 1938.77 ft T: 26.23 C 700-500 lapse rate: 5.14 C/km ThetaE index: 11.87 C Layer 991.0- 825.0 mb Conv cond level (CCL): 835.35 mb = 1639.45 m = 5378.71 ft Mean mixing ratio: 16.08 g/kg Conv temperature: 33.56 C = 92.41 F Cap Strength: 1.70 C Lifted Index: -0.15 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.76 C Lifted Index @700 mb: 0.59 C Showalter Index: 2.13 C Risk: Showers probable Total Totals Index: 39.50 C Risk: None Vertical Totals Index: 21.70 C Cross Totals Index: 17.80 C K Index: 30.20 Risk: 60-80 % chance of thunderstorms Sweat Index: 221.00 Risk: None Energy Index: -0.91 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 323.11 J/kg Max Up Vert Vel: 25.42 m/s Conv Inhibition (B-): 36.91 J/kg Cap Strength: 1.70 C Lift Cond Lev (LCL): 866.22 mb = 1325.19 m = 4347.70 ft Lev Free Conv (LFC): 791.22 mb = 2101.97 m = 6896.15 ft Equ Level (EL): 711.22 mb = 3003.39 m = 9853.53 ft B at Equ Level: 18.45 J/kg Max Parcel Lev (MPL): 631.22 mb = 3994.18 m = 13104.11 ft Wind level data Storm motion: 113 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 ---------------------------------------------------------- 0 998 85 130 2 -1.5 1.3 | 288 6 5.9 -1.9 1 973 305 150 5 -2.5 4.3 | 257 5 4.9 1.2 2 940 610 85 4 -4.0 -0.3 | 316 5 3.4 -3.5 3 925 753 55 5 -4.1 -2.9 | 331 7 3.3 -6.0 4 908 914 50 5 -3.8 -3.2 | 331 7 3.6 -6.4 5 850 1490 80 9 -8.9 -1.6 | 17 5 -1.5 -4.7 6 817 1829 70 11 -10.3 -3.8 | 23 8 -2.9 -6.9 7 788 2134 80 9 -8.9 -1.6 | 17 5 -1.5 -4.7 8 760 2438 75 9 -8.7 -2.3 | 13 6 -1.3 -5.5 9 733 2743 75 10 -9.7 -2.6 | 21 6 -2.3 -5.7 10 707 3048 100 12 -11.8 2.1 | 76 5 -4.4 -1.1 11 700 3137 95 11 -11.0 1.0 | 58 4 -3.6 -2.2 12 682 3353 70 12 -11.3 -4.1 | 28 8 -3.9 -7.3 13 609 4267 90 13 -13.0 0.0 | 61 6 -5.6 -3.2 14 565 4877 95 15 -14.9 1.3 | 76 8 -7.5 -1.8 15 545 5182 65 12 -10.9 -5.1 | 23 9 -3.5 -8.2 16 505 5791 100 15 -14.8 2.6 | 86 7 -7.4 -0.6 17 500 5880 85 17 -16.9 -1.5 | 64 11 -9.5 -4.6 18 486 6096 80 17 -16.7 -3.0 | 57 11 -9.3 -6.1 19 450 6706 85 18 -17.9 -1.6 | 66 12 -10.5 -4.7 20 433 7010 90 12 -12.0 0.0 | 56 6 -4.6 -3.2 21 400 7620 85 12 -12.0 -1.0 | 47 6 -4.6 -4.2 22 384 7925 85 12 -12.0 -1.0 | 47 6 -4.6 -4.2 23 368 8230 60 15 -13.0 -7.5 | 28 12 -5.6 -10.7 24 353 8534 75 14 -13.5 -3.6 | 42 9 -6.1 -6.8 25 339 8839 65 11 -10.0 -4.6 | 18 8 -2.6 -7.8 26 300 9740 70 11 -10.3 -3.8 | 23 8 -2.9 -6.9 27 299 9754 55 13 -10.6 -7.5 | 17 11 -3.2 -10.6 28 287 10058 85 11 -11.0 -1.0 | 41 5 -3.6 -4.1 29 275 10363 80 11 -10.8 -1.9 | 34 6 -3.4 -5.1 30 263 10668 65 17 -15.4 -7.2 | 38 13 -8.0 -10.3 31 250 11020 75 24 -23.2 -6.2 | 59 18 -15.8 -9.4 32 241 11278 70 25 -23.5 -8.6 | 54 20 -16.1 -11.7 33 220 11887 60 20 -17.3 -10.0 | 37 16 -9.9 -13.2 34 210 12192 20 11 -3.8 -10.3 | 345 14 3.6 -13.5 35 200 12497 350 7 1.2 -6.9 | 319 13 8.6 -10.1 36 200 12510 325 8 4.6 -6.6 | 309 15 12.0 -9.7 37 191 12802 305 10 8.2 -5.7 | 300 18 15.6 -8.9 38 165 13716 275 12 12.0 -1.0 | 282 20 19.4 -4.2 39 157 14021 240 13 11.3 6.5 | 260 19 18.7 3.3 40 150 14320 180 7 0.0 7.0 | 243 8 7.4 3.8 41 150 14326 240 11 9.5 5.5 | 262 17 16.9 2.3 42 128 15240 155 10 -4.2 9.1 | 208 7 3.2 5.9 43 121 15545 130 6 -4.6 3.9 | 256 3 2.8 0.7 44 100 16650 50 10 -7.7 -6.4 | 2 10 -0.3 -9.6 45 98 16764 50 10 -7.7 -6.4 | 2 10 -0.3 -9.6 46 95 16931 40 7 -4.5 -5.4 | 341 9 2.9 -8.5 47 93 17069 30 11 -5.5 -9.5 | 351 13 1.9 -12.7 48 88 17374 85 10 -10.0 -0.9 | 32 5 -2.6 -4.0 49 83 17678 150 3 -1.5 2.6 | 275 6 5.9 -0.6 50 79 17983 275 20 19.9 -1.7 | 280 28 27.3 -4.9 51 75 18288 260 22 21.7 3.8 | 269 29 29.1 0.7 52 71 18593 275 21 20.9 -1.8 | 280 29 28.3 -5.0 53 70 18670 260 30 29.5 5.2 | 267 37 36.9 2.1 54 67 18898 260 30 29.5 5.2 | 267 37 36.9 2.1 55 61 19507 245 14 12.7 5.9 | 262 20 20.1 2.8 56 58 19812 260 24 23.6 4.2 | 268 31 31.0 1.0 57 55 20117 255 16 15.5 4.1 | 268 23 22.9 1.0 58 52 20422 280 13 12.8 -2.3 | 285 21 20.2 -5.4 59 50 20630 270 16 16.0 -0.0 | 278 24 23.4 -3.2 60 49 20726 260 11 10.8 1.9 | 274 18 18.2 -1.2 61 45 21336 270 30 30.0 -0.0 | 275 38 37.4 -3.2 62 40 21946 265 26 25.9 2.3 | 272 33 33.3 -0.9 63 35 22860 290 15 14.1 -5.1 | 291 23 21.5 -8.3 64 33 23165 325 5 2.9 -4.1 | 305 13 10.3 -7.3 65 30 23750 265 16 15.9 1.4 | 274 23 23.3 -1.8 66 28 24079 265 18 17.9 1.6 | 274 25 25.3 -1.6 67 26 24384 250 14 13.2 4.8 | 265 21 20.6 1.6 68 22 24994 150 11 -5.5 9.5 | 197 7 1.9 6.4 Wind Parameters Mean winds (0-6000m): 83.1 at 10.7 knts Storm direction: 113.1 at 8.0 knts Shear (0-3000m) pos: 1.4 neg: 1.1 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): 141.3 deg Storm rel helicity (0-3000m) pos: 22.1 neg: -5.0 tot: 17.1 m^2/s^2 ave: 5.7 10^-3 m/s^2 rel: 0.46 Storm rel vorticity (0-3000m) horiz: 4.6 stream: 2.1 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 32.92 Bulk Shear: 9.81 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 ------------------------------------------------------------------------------- 500 132 4 276 4| 0.0 2.9 2.9| 3.9 -3.6 0.3 0.5 0.15| 7.8 1.2 1000 89 5 318 4| 0.0 3.0 3.0| 8.7 -3.7 5.1 5.1 0.34| 6.3 2.1 1500 82 6 336 4| 1.4 2.0 3.4| 14.5 -3.7 10.9 7.2 0.47| 5.8 2.7 2000 78 7 351 5| 1.0 1.5 2.5| 15.0 -4.3 10.7 5.4 0.39| 5.2 2.0 2500 78 7 357 5| 0.8 1.3 2.1| 15.6 -5.0 10.6 4.2 0.36| 4.5 1.6 3000 80 8 4 5| 1.4 1.1 2.5| 22.1 -5.0 17.1 5.7 0.46| 4.6 2.1 4000 80 9 17 5| 1.3 1.4 2.7| 28.1 -10.8 17.3 4.3 0.32| 4.6 1.5 5000 83 10 30 5| 1.3 1.5 2.7| 32.8 -21.5 11.3 2.3 0.21| 4.5 0.9 6000 83 11 36 6| 1.3 1.5 2.8| 50.2 -37.5 12.8 2.1 0.18| 5.2 0.9 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250417.00.gif