UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122912.upa.cvt Date: 1200Z 29 DEC 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 29 DEC 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 21.0 89 2.0 21.6 150 2 295.9 298.7 294.7 341.4 15.80 1 1000 107 23.0 21.9 94 1.1 22.2 150 2 296.1 299.2 295.4 344.5 16.77 2 956 500 21.2 20.3 95 0.9 20.6 209 4 298.2 301.0 295.3 344.3 15.88 3 943 620 22.8 18.2 75 4.6 19.6 156 4 301.0 303.5 294.9 342.3 14.08 4 925 788 22.0 18.4 80 3.6 19.5 165 4 301.8 304.5 295.4 344.7 14.55 5 909 940 21.6 17.0 75 4.6 18.4 153 5 302.9 305.4 295.0 343.0 13.53 6 884 1182 20.6 15.9 74 4.7 17.4 133 6 304.3 306.7 295.0 342.9 12.96 7 850 1520 18.6 15.0 80 3.6 16.2 105 8 305.6 308.0 295.2 343.7 12.72 8 782 2231 13.2 12.3 94 0.9 12.6 152 10 307.2 309.4 294.8 342.1 11.58 9 738 2719 12.2 8.4 78 3.8 9.8 152 12 311.3 313.0 294.4 340.2 9.42 10 700 3161 8.8 6.0 83 2.8 7.1 110 16 312.2 313.8 293.9 338.3 8.41 11 644 3849 6.0 2.0 75 4.0 3.7 84 15 316.6 317.9 293.9 338.4 6.88 12 579 4714 0.0 -0.2 99 0.2 -0.1 76 15 319.4 320.6 294.4 340.3 6.53 13 500 5880 -5.7 -6.6 93 0.9 -6.1 85 11 326.1 327.0 294.7 341.6 4.67 14 470 6364 -7.9 -9.7 87 1.8 -8.7 102 12 329.2 330.0 294.9 342.4 3.90 15 400 7600 -15.7 -17.3 87 1.6 -16.3 105 10 334.6 335.1 295.1 343.2 2.46 16 339 8824 -24.5 -25.7 90 1.2 -24.8 95 5 338.8 339.1 295.3 343.9 1.39 17 300 9700 -31.1 -33.6 79 2.5 -31.5 110 3 341.5 341.7 295.4 344.4 0.75 18 254 10862 -40.7 -45.0 63 4.3 -41.1 18 7 344.0 344.0 295.6 345.1 0.27 19 250 10970 -41.5 -45.5 65 4.0 -41.8 5 8 344.4 344.4 295.6 345.4 0.26 20 223 11733 -48.5 -51.0 75 2.5 -48.6 355 10 345.1 345.1 295.7 345.7 0.16 21 218 11882 -49.7 -57.7 39 8.0 -50.0 350 10 345.4 345.5 295.7 345.8 0.07 22 209 12156 -51.9 -60.9 33 9.0 -52.1 341 11 346.2 346.2 295.8 346.4 0.05 23 200 12440 -53.7 -65.7 22 12.0 -53.9 280 7 347.7 347.7 296.1 347.8 0.03 24 182 13037 -58.3 -71.3 17 13.0 -58.5 235 14 349.7 349.8 296.6 349.8 0.01 25 165 13644 -63.7 -69.7 44 6.0 -63.8 220 23 350.7 350.7 296.8 350.7 0.02 26 160 13832 -65.3 -75.3 24 10.0 -65.4 215 25 351.1 351.1 296.8 351.1 0.01 27 150 14220 -68.5 -75.5 36 7.0 -68.5 195 25 352.1 352.1 297.1 352.1 0.01 28 145 14422 -70.3 -76.3 41 6.0 -70.4 193 24 352.4 352.4 297.1 352.4 0.01 29 131 15019 -74.3 -82.3 28 8.0 -74.3 193 18 355.6 355.6 297.8 355.6 0.00 30 126 15247 -72.1 -84.1 15 12.0 -72.2 195 15 363.6 363.6 299.4 363.6 0.00 31 101 16524 -79.9 -86.9 30 7.0 -79.9 52 27 372.3 372.3 300.9 372.3 0.00 32 100 16580 -79.9 -86.9 30 7.0 -79.9 50 29 373.4 373.4 301.1 373.4 0.00 33 92 17050 -82.3 -89.3 29 7.0 -82.3 30 18 377.6 377.6 301.9 377.6 0.00 34 83 17626 -82.7 -90.7 24 8.0 -82.7 68 22 388.1 388.1 303.5 388.1 0.00 35 79 17906 -77.7 -88.7 15 11.0 -77.7 74 26 403.9 403.9 305.7 403.9 0.00 36 74 18280 -78.9 -89.9 15 11.0 -78.9 72 32 409.0 409.0 306.4 409.0 0.00 37 71 18518 -75.5 -88.5 11 13.0 -75.6 70 36 421.2 421.2 307.9 421.2 0.00 38 70 18600 -75.7 -88.7 11 13.0 -75.7 30 9 422.4 422.4 308.0 422.4 0.00 39 65 19025 -77.5 -89.5 13 12.0 -77.6 339 12 427.5 427.6 308.6 427.6 0.00 40 57 19777 -76.9 -89.9 11 13.0 -77.0 112 20 445.3 445.3 310.4 445.3 0.00 41 50 20540 -71.1 -90.1 4 19.0 -71.2 85 31 475.9 475.9 313.1 476.0 0.00 42 44 21296 -73.3 -91.3 5 18.0 -73.4 103 38 488.3 488.3 314.1 488.3 0.00 43 40 21860 -70.3 -91.3 3 21.0 -70.5 92 42 509.3 509.3 315.6 509.3 0.00 44 38 22171 -63.9 -90.9 1 27.0 -64.4 94 46 533.1 533.1 317.1 533.2 0.00 45 33 23034 -65.9 -91.9 1 26.0 -66.3 99 58 549.8 549.8 318.1 549.8 0.00 46 30 23620 -61.7 -91.7 1 30.0 -62.4 90 68 576.4 576.4 319.5 576.5 0.00 47 27 24276 -58.4 -90.7 1 32.4 -59.6 90 70 603.4 603.4 320.7 603.4 0.00 48 23 25294 -53.3 -89.3 0 36.0 -55.6 82 55 646.7 646.7 322.6 646.7 0.01 49 22 25578 -55.7 -89.7 1 34.0 -57.6 78 47 647.8 647.8 322.6 647.8 0.01 50 20 26190 -51.5 -88.5 0 37.0 -54.6 70 32 678.5 678.5 323.7 678.6 0.01 51 18 26875 -50.7 -88.7 0 38.0 -54.2 68 30 701.8 701.8 324.5 701.9 0.01 TRP 92 17050 -82.3 -89.3 29 7.0 -82.3 30 18 377.6 377.6 301.9 377.6 0.00 WND 27 24276 -58.4 -90.7 1 32.4 -59.6 90 70 603.4 603.4 320.7 603.4 0.00 Sounding variables and indices 1000-500 mb thick: 5773.00 m Freezing level: 579.00 mb = 4713.92 m = 15465.43 ft Wetbulb zero: 580.66 mb = 4690.62 m = 15389.00 ft Precipitable water: 2.25 inches Sfc-500 mean rel hum: 86.19 % Est. max temperature: 32.62 C = 90.72 F Sfc-Lift cond lev (LCL): 974.42 mb = 333.31 m = 1093.53 ft T: 21.96 C 700-500 lapse rate: 5.33 C/km ThetaE index: 5.47 C Layer 782.0- 644.0 mb Conv cond level (CCL): 835.79 mb = 1663.75 m = 5458.43 ft Mean mixing ratio: 15.22 g/kg Conv temperature: 33.07 C = 91.52 F Cap Strength: 2.94 C Lifted Index: -0.50 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.70 C Lifted Index @700 mb: -0.07 C Showalter Index: -0.39 C Risk: Thunderstorms probable Total Totals Index: 45.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.30 C Cross Totals Index: 20.70 C K Index: 36.50 Risk: > 80 % chance of thunderstorms Sweat Index: 207.00 Risk: None Energy Index: -0.49 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 86.40 J/kg Max Up Vert Vel: 13.15 m/s Conv Inhibition (B-): 128.51 J/kg Cap Strength: 2.92 C Lift Cond Lev (LCL): 917.56 mb = 858.26 m = 2815.77 ft Lev Free Conv (LFC): 692.56 mb = 3249.27 m = 10660.22 ft Equ Level (EL): 682.56 mb = 3369.37 m = 11054.23 ft B at Equ Level: 32.04 J/kg Max Parcel Lev (MPL): 242.56 mb = 11171.82 m = 36652.50 ft Wind level data Storm motion: 125 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 85 150 2 -1.0 1.7 | 298 7 6.3 -3.3 1 1000 107 150 2 -1.0 1.7 | 298 7 6.3 -3.3 2 978 305 305 3 2.5 -1.7 | 305 12 9.8 -6.8 3 944 610 155 4 -1.7 3.6 | 284 6 5.6 -1.4 4 925 788 165 4 -1.0 3.9 | 281 6 6.3 -1.2 5 912 914 155 5 -2.1 4.5 | 276 5 5.2 -0.5 6 850 1520 105 8 -7.7 2.1 | 7 3 -0.4 -3.0 7 820 1829 95 11 -11.0 1.0 | 41 5 -3.6 -4.1 8 790 2134 145 9 -5.2 7.4 | 223 3 2.2 2.3 9 762 2438 170 12 -2.1 11.8 | 218 9 5.3 6.8 10 709 3048 130 12 -9.2 7.7 | 145 3 -1.9 2.6 11 700 3161 110 16 -15.0 5.5 | 93 8 -7.7 0.4 12 658 3658 90 15 -15.0 0.0 | 57 9 -7.7 -5.1 13 610 4267 70 15 -14.1 -5.1 | 34 12 -6.8 -10.2 14 588 4572 80 14 -13.8 -2.4 | 41 10 -6.5 -7.5 15 545 5182 60 21 -18.2 -10.5 | 35 19 -10.9 -15.6 16 500 5880 85 11 -11.0 -1.0 | 31 7 -3.6 -6.0 17 486 6096 85 14 -13.9 -1.2 | 46 9 -6.6 -6.3 18 467 6401 105 12 -11.6 3.1 | 65 5 -4.3 -2.0 19 449 6706 90 15 -15.0 0.0 | 57 9 -7.7 -5.1 20 432 7010 105 10 -9.7 2.6 | 43 3 -2.3 -2.5 21 415 7315 115 10 -9.1 4.2 | 64 2 -1.7 -0.8 22 400 7600 105 10 -9.7 2.6 | 43 3 -2.3 -2.5 23 383 7925 85 10 -10.0 -0.9 | 24 6 -2.6 -5.9 24 367 8230 85 7 -7.0 -0.6 | 356 6 0.4 -5.7 25 300 9700 110 3 -2.8 1.0 | 312 6 4.5 -4.0 26 298 9754 145 2 -1.1 1.6 | 299 7 6.2 -3.4 27 250 10970 5 8 -0.7 -8.0 | 333 15 6.6 -13.0 28 228 11582 360 10 -0.0 -10.0 | 334 17 7.3 -15.1 29 208 12192 340 11 3.8 -10.3 | 324 19 11.1 -15.4 30 200 12440 280 7 6.9 -1.2 | 294 16 14.2 -6.3 31 198 12497 280 7 6.9 -1.2 | 294 16 14.2 -6.3 32 189 12802 240 11 9.5 5.5 | 269 17 16.9 0.4 33 155 14021 210 28 14.0 24.2 | 228 29 21.3 19.2 34 150 14220 195 25 6.5 24.1 | 216 24 13.8 19.1 35 140 14630 190 23 4.0 22.7 | 213 21 11.3 17.6 36 126 15240 195 15 3.9 14.5 | 230 15 11.2 9.4 37 119 15545 120 11 -9.5 5.5 | 101 2 -2.2 0.4 38 113 15850 90 10 -10.0 0.0 | 28 6 -2.7 -5.1 39 108 16154 65 15 -13.6 -6.3 | 29 13 -6.3 -11.4 40 100 16580 50 29 -22.2 -18.6 | 32 28 -14.9 -23.7 41 97 16764 50 29 -22.2 -18.6 | 32 28 -14.9 -23.7 42 92 17050 30 18 -9.0 -15.6 | 5 21 -1.7 -20.7 43 87 17374 30 19 -9.5 -16.5 | 6 22 -2.2 -21.5 44 82 17678 75 22 -21.3 -5.7 | 52 18 -13.9 -10.8 45 70 18593 70 37 -34.8 -12.7 | 57 33 -27.4 -17.7 46 70 18600 30 9 -4.5 -7.8 | 348 13 2.8 -12.9 47 66 18898 45 12 -8.5 -8.5 | 5 14 -1.2 -13.6 48 63 19202 250 13 12.2 4.4 | 272 20 19.5 -0.6 49 60 19507 135 11 -7.8 7.8 | 171 3 -0.4 2.7 50 57 19812 110 21 -19.7 7.2 | 100 13 -12.4 2.1 51 54 20117 150 20 -10.0 17.3 | 168 13 -2.7 12.3 52 51 20422 100 22 -21.7 3.8 | 85 14 -14.3 -1.2 53 50 20540 85 31 -30.9 -2.7 | 72 25 -23.5 -7.8 54 46 21031 85 31 -30.9 -2.7 | 72 25 -23.5 -7.8 55 44 21336 105 39 -37.7 10.1 | 99 31 -30.3 5.0 56 42 21641 90 38 -38.0 0.0 | 81 31 -30.7 -5.1 57 32 23165 100 60 -59.1 10.4 | 96 52 -51.8 5.4 58 30 23620 90 68 -68.0 0.0 | 85 61 -60.7 -5.1 59 27 24276 90 70 -70.0 0.0 | 85 63 -62.7 -5.1 60 25 24689 90 70 -70.0 0.0 | 85 63 -62.7 -5.1 61 20 26190 70 32 -30.1 -10.9 | 55 28 -22.7 -16.0 62 15 27127 65 27 -24.5 -11.4 | 46 24 -17.1 -16.5 Wind Parameters Mean winds (0-6000m): 94.6 at 11.9 knts Storm direction: 124.6 at 8.9 knts Shear (0-3000m) pos: 2.1 neg: 2.7 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): -176.7 deg Storm rel helicity (0-3000m) pos: 13.3 neg: -24.9 tot: -11.6 m^2/s^2 ave: -3.9 10^-3 m/s^2 rel: 0.02 Storm rel vorticity (0-3000m) horiz: 8.3 stream: 0.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 3.32 Bulk Shear: 26.00 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 ------------------------------------------------------------------------------- 500 225 3 287 10| 2.2 0.0 2.2| 5.6 -13.1 -7.5 -15.0 -0.22| 13.4 -2.9 1000 163 4 283 6| 1.1 1.5 2.6| 6.2 -14.2 -8.1 -8.1 -0.19| 8.6 -1.6 1500 135 5 293 4| 0.7 2.7 3.4| 8.9 -14.2 -5.4 -3.6 0.05| 7.6 0.4 2000 121 6 313 3| 1.9 2.0 3.9| 12.8 -14.2 -1.5 -0.7 0.26| 8.4 2.2 2500 134 7 272 2| 2.5 1.6 4.1| 13.3 -16.8 -3.5 -1.4 0.19| 8.3 1.6 3000 137 8 248 2| 2.1 2.7 4.8| 13.3 -24.9 -11.6 -3.9 0.02| 8.3 0.2 4000 118 10 73 1| 1.6 3.2 4.8| 13.3 -48.6 -35.3 -8.8 -0.17| 8.0 -1.3 5000 103 11 54 4| 1.4 3.3 4.7| 17.2 -56.8 -39.6 -7.9 -0.15| 7.5 -1.2 6000 95 12 48 6| 1.9 2.7 4.6| 26.1 -61.8 -35.7 -5.9 -0.11| 7.7 -0.8 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251229.12.gif