UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 4 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 1001 85 24.0 23.0 94 1.0 23.3 120 3 297.1 300.3 296.4 349.0 17.94 1 1000 88 24.0 23.2 95 0.8 23.5 70 3 297.1 300.4 296.6 349.8 18.19 2 978 284 23.4 23.3 99 0.1 23.3 56 8 298.4 301.8 297.3 353.0 18.72 3 962 429 25.6 20.7 74 4.9 22.1 51 9 302.1 305.1 296.6 349.8 16.18 4 925 775 24.2 18.2 69 6.0 20.0 35 11 304.1 306.7 295.9 346.8 14.36 5 900 1015 23.2 15.2 61 8.0 17.8 30 15 305.4 307.7 294.7 341.8 12.16 6 850 1512 19.4 17.0 86 2.4 17.7 10 15 306.5 309.2 296.6 350.0 14.49 7 849 1522 19.2 16.8 86 2.4 17.5 6 13 306.4 309.0 296.5 349.4 14.32 8 734 2766 14.2 5.2 55 9.0 8.8 325 16 313.9 315.4 293.7 337.6 7.58 9 700 3166 11.4 3.4 58 8.0 6.8 315 16 315.1 316.5 293.6 337.1 7.00 10 603 4394 2.4 -2.6 70 5.0 -0.2 276 15 318.4 319.5 293.2 335.3 5.24 11 594 4516 1.6 -5.4 60 7.0 -1.8 266 15 318.9 319.7 292.5 332.8 4.31 12 590 4570 1.4 -9.6 44 11.0 -3.4 262 14 319.3 319.9 291.6 329.6 3.13 13 585 4639 0.8 -2.2 80 3.0 -0.7 262 14 319.3 320.4 293.6 337.3 5.57 14 570 4848 0.8 -14.2 32 15.0 -5.2 273 13 321.7 322.2 291.5 329.3 2.23 15 564 4933 0.0 -8.0 55 8.0 -3.7 275 13 321.8 322.5 292.8 334.0 3.71 16 557 5034 -0.3 -12.3 40 12.0 -5.3 275 15 322.6 323.1 292.1 331.5 2.67 17 514 5673 -4.5 -15.5 42 11.0 -8.7 281 20 325.0 325.4 292.4 332.6 2.23 18 500 5890 -6.3 -12.3 62 6.0 -8.8 295 17 325.4 325.9 293.2 335.4 2.98 19 485 6127 -7.3 -10.4 78 3.1 -8.7 319 17 327.0 327.7 294.1 339.0 3.57 20 468 6403 -9.1 -17.1 52 8.0 -12.0 308 18 328.1 328.5 293.2 335.5 2.14 21 463 6486 -9.5 -14.0 70 4.5 -11.3 304 18 328.6 329.2 293.9 338.2 2.80 22 460 6536 -9.5 -16.5 57 7.0 -12.1 302 18 329.2 329.7 293.6 337.1 2.29 23 455 6620 -9.1 -26.1 24 17.0 -13.9 299 19 330.7 330.9 292.9 334.4 1.00 24 404 7525 -16.3 -20.4 71 4.1 -17.6 289 9 332.9 333.2 294.2 339.5 1.87 25 400 7600 -16.7 -19.9 76 3.2 -17.7 285 6 333.3 333.7 294.4 340.2 1.97 26 398 7638 -16.9 -19.7 79 2.8 -17.8 290 12 333.5 333.9 294.5 340.6 2.02 27 368 8223 -19.3 -21.5 83 2.2 -20.0 149 14 337.9 338.2 295.4 344.6 1.86 28 353 8532 -21.1 -25.1 70 4.0 -22.2 131 23 339.5 339.8 295.4 344.7 1.41 29 323 9181 -26.7 -28.0 89 1.3 -27.0 141 22 340.5 340.7 295.5 344.9 1.18 30 300 9710 -30.7 -33.5 76 2.8 -31.2 150 22 342.1 342.3 295.5 345.0 0.75 31 256 10818 -39.7 -45.7 53 6.0 -40.2 132 22 344.7 344.7 295.7 345.7 0.25 32 250 10980 -40.7 -49.7 37 9.0 -41.3 135 20 345.6 345.6 295.8 346.2 0.16 33 246 11090 -41.7 -52.7 29 11.0 -42.3 134 20 345.7 345.7 295.8 346.2 0.12 34 234 11428 -44.3 -53.3 36 9.0 -44.8 129 20 346.7 346.7 296.0 347.2 0.11 35 223 11749 -47.5 -53.5 50 6.0 -47.8 125 19 346.6 346.6 296.0 347.1 0.12 36 220 11839 -47.9 -60.9 21 13.0 -48.3 124 19 347.3 347.3 296.1 347.5 0.05 37 200 12460 -54.1 -60.1 48 6.0 -54.2 115 19 347.1 347.1 296.0 347.3 0.06 38 189 12820 -57.5 -62.4 54 4.9 -57.6 115 19 347.3 347.3 296.1 347.5 0.05 39 186 12921 -58.1 -66.1 35 8.0 -58.2 110 21 347.9 347.9 296.2 348.0 0.03 40 176 13266 -60.9 -64.6 61 3.7 -61.0 101 24 348.8 348.9 296.4 349.0 0.04 41 150 14240 -69.1 -79.1 22 10.0 -69.2 95 32 351.1 351.1 296.8 351.1 0.01 42 149 14280 -69.3 -79.3 22 10.0 -69.4 95 32 351.4 351.4 297.0 351.4 0.01 43 140 14649 -72.3 -76.6 52 4.3 -72.3 91 34 352.4 352.4 297.1 352.5 0.01 44 129 15127 -74.7 -80.7 39 6.0 -74.7 86 37 356.5 356.5 298.0 356.5 0.00 45 126 15265 -72.9 -80.9 29 8.0 -72.9 84 37 362.1 362.1 299.1 362.2 0.00 46 101 16543 -78.5 -89.5 15 11.0 -78.5 140 12 375.0 375.0 301.4 375.0 0.00 47 100 16600 -78.7 -89.7 15 11.0 -78.7 130 14 375.7 375.7 301.5 375.7 0.00 48 77 18050 -88.3 -91.9 51 3.6 -88.3 70 24 384.8 384.8 303.0 384.8 0.00 49 70 18580 -78.1 -88.1 18 10.0 -78.1 250 3 417.3 417.3 307.4 417.3 0.00 50 67 18829 -79.3 -89.3 18 10.0 -79.3 192 5 420.0 420.0 307.7 420.0 0.00 51 62 19276 -73.1 -90.1 6 17.0 -73.2 114 13 443.1 443.1 310.2 443.1 0.00 52 59 19565 -74.5 -89.5 8 15.0 -74.6 90 19 446.3 446.3 310.5 446.3 0.00 53 50 20530 -73.5 -90.5 6 17.0 -73.6 90 15 470.3 470.3 312.7 470.3 0.00 54 49 20648 -73.9 -90.9 6 17.0 -74.0 90 15 472.1 472.1 312.8 472.1 0.00 55 39 22014 -64.1 -91.1 1 27.0 -64.6 87 46 528.7 528.7 316.8 528.7 0.00 56 30 23640 -59.3 -88.3 1 29.0 -60.3 90 56 583.0 583.0 319.8 583.0 0.01 57 29 23853 -59.1 -88.1 1 29.0 -60.2 90 56 589.2 589.2 320.1 589.2 0.01 58 24 25038 -60.5 -88.5 1 28.0 -61.6 100 65 617.9 617.9 321.4 618.0 0.01 59 23 25305 -57.3 -87.5 1 30.2 -58.9 100 74 634.9 634.9 322.1 634.9 0.01 60 21 25891 -50.5 -85.5 1 35.0 -53.7 98 72 672.2 672.2 323.5 672.2 0.01 61 20 26210 -49.5 -84.5 1 35.0 -53.1 95 70 684.7 684.7 323.9 684.8 0.02 62 17 27278 -48.1 -84.1 1 36.0 -52.7 92 67 721.7 721.7 325.1 721.9 0.02 63 16 27682 -43.7 -82.7 1 39.0 -50.2 91 66 748.7 748.7 325.9 748.9 0.03 64 15 28115 -44.5 -82.5 1 38.0 -50.8 89 60 760.0 760.0 326.2 760.2 0.03 65 14 28581 -40.5 -81.5 0 41.0 -49.0 87 46 788.7 788.7 327.0 789.0 0.04 66 13 29084 -41.7 -81.7 1 40.0 -49.9 85 32 801.4 801.5 327.3 801.8 0.04 TRP 77 18050 -88.3 -91.9 51 3.6 -88.3 70 24 384.8 384.8 303.0 384.8 0.00 WND 23 25305 -57.3 -87.5 1 30.2 -58.9 100 74 634.9 634.9 322.1 634.9 0.01 Sounding variables and indices 1000-500 mb thick: 5802.00 m Freezing level: 564.00 mb = 4933.30 m = 16185.18 ft Wetbulb zero: 605.19 mb = 4364.43 m = 14318.84 ft Precipitable water: 2.01 inches Sfc-500 mean rel hum: 63.47 % Est. max temperature: 33.39 C = 92.09 F Sfc-Lift cond lev (LCL): 986.92 mb = 203.74 m = 668.42 ft T: 23.64 C 700-500 lapse rate: 6.50 C/km ThetaE index: 20.46 C Layer 849.0- 585.0 mb Conv cond level (CCL): 811.04 mb = 1913.13 m = 6276.60 ft Mean mixing ratio: 15.82 g/kg Conv temperature: 35.67 C = 96.20 F Cap Strength: 3.56 C Lifted Index: -2.86 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.54 C Lifted Index @700 mb: 1.18 C Showalter Index: -3.33 C Risk: Severe thunderstorms possible Total Totals Index: 49.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.70 C Cross Totals Index: 23.30 C K Index: 34.70 Risk: 60-80 % chance of thunderstorms Sweat Index: 251.00 Risk: None Energy Index: -2.86 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 568.61 J/kg Max Up Vert Vel: 33.72 m/s Conv Inhibition (B-): 200.71 J/kg Cap Strength: 3.56 C Lift Cond Lev (LCL): 894.22 mb = 1071.20 m = 3514.39 ft Lev Free Conv (LFC): 659.22 mb = 3660.29 m = 12008.69 ft Equ Level (EL): 179.22 mb = 13152.94 m = 43152.17 ft B at Equ Level: 566.67 J/kg Max Parcel Lev (MPL): 109.22 mb = 16091.13 m = 52791.78 ft Wind level data Storm motion: 347 at 11 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 1001 85 120 3 -2.6 1.5 | 158 13 -5.1 12.3 1 1000 88 70 3 -2.8 -1.0 | 152 11 -5.3 9.8 2 976 305 55 9 -7.4 -5.2 | 120 11 -9.8 5.7 3 943 610 45 9 -6.4 -6.4 | 117 10 -8.8 4.5 4 925 775 35 11 -6.3 -9.0 | 102 9 -8.8 1.8 5 910 914 30 14 -7.0 -12.1 | 82 10 -9.5 -1.3 6 879 1219 30 16 -8.0 -13.9 | 74 11 -10.5 -3.0 7 850 1512 10 15 -2.6 -14.8 | 52 6 -5.1 -3.9 8 849 1524 5 13 -1.1 -13.0 | 60 4 -3.6 -2.1 9 819 1829 10 14 -2.4 -13.8 | 59 6 -4.9 -2.9 10 790 2134 350 15 2.6 -14.8 | 358 4 0.2 -3.9 11 762 2438 330 17 8.5 -14.7 | 303 7 6.0 -3.9 12 710 3048 320 16 10.3 -12.3 | 280 8 7.8 -1.4 13 700 3166 315 16 11.3 -11.3 | 273 9 8.9 -0.5 14 659 3658 295 15 13.6 -6.3 | 248 12 11.1 4.5 15 634 3962 295 14 12.7 -5.9 | 244 11 10.2 4.9 16 611 4267 285 16 15.5 -4.1 | 243 15 13.0 6.7 17 588 4572 260 14 13.8 2.4 | 220 17 11.3 13.3 18 567 4877 275 13 13.0 -1.1 | 227 14 10.5 9.7 19 526 5486 275 20 19.9 -1.7 | 242 20 17.5 9.1 20 506 5791 285 20 19.3 -5.2 | 251 18 16.9 5.7 21 500 5890 295 17 15.4 -7.2 | 254 13 13.0 3.7 22 487 6096 320 17 10.9 -13.0 | 284 9 8.5 -2.2 23 450 6706 295 19 17.2 -8.0 | 259 15 14.8 2.8 24 415 7315 300 19 16.5 -9.5 | 265 14 14.0 1.3 25 400 7600 285 6 5.8 -1.6 | 200 10 3.3 9.3 26 399 7620 295 12 10.9 -5.1 | 236 10 8.4 5.8 27 383 7925 210 3 1.5 2.6 | 176 13 -1.0 13.4 28 367 8230 145 15 -8.6 12.3 | 154 26 -11.1 23.1 29 352 8534 130 23 -17.6 14.8 | 142 33 -20.1 25.6 30 300 9710 150 22 -11.0 19.1 | 156 33 -13.5 29.9 31 298 9754 155 22 -9.3 19.9 | 159 33 -11.8 30.8 32 261 10668 130 23 -17.6 14.8 | 142 33 -20.1 25.6 33 250 10980 135 20 -14.1 14.1 | 146 30 -16.6 25.0 34 200 12460 115 19 -17.2 8.0 | 134 27 -19.7 18.9 35 189 12802 115 19 -17.2 8.0 | 134 27 -19.7 18.9 36 180 13106 100 24 -23.6 4.2 | 120 30 -26.1 15.0 37 163 13716 105 26 -25.1 6.7 | 123 33 -27.6 17.6 38 150 14240 95 32 -31.9 2.8 | 112 37 -34.3 13.6 39 126 15240 85 38 -37.9 -3.3 | 101 41 -40.3 7.5 40 120 15545 65 23 -20.8 -9.7 | 93 23 -23.3 1.1 41 114 15850 75 14 -13.5 -3.6 | 114 18 -16.0 7.2 42 102 16459 155 10 -4.2 9.1 | 161 21 -6.7 19.9 43 100 16600 130 14 -10.7 9.0 | 146 24 -13.2 19.8 44 97 16764 130 14 -10.7 9.0 | 146 24 -13.2 19.8 45 92 17069 105 4 -3.9 1.0 | 152 13 -6.3 11.9 46 87 17374 45 11 -7.8 -7.8 | 107 11 -10.2 3.1 47 77 18050 70 24 -22.6 -8.2 | 96 25 -25.0 2.6 48 74 18288 60 25 -21.7 -12.5 | 86 24 -24.1 -1.7 49 70 18580 250 3 2.8 1.0 | 182 12 0.4 11.9 50 70 18593 85 14 -13.9 -1.2 | 120 19 -16.4 9.6 51 66 18898 220 2 1.3 1.5 | 175 12 -1.2 12.4 52 63 19202 125 10 -8.2 5.7 | 147 20 -10.6 16.6 53 60 19507 85 22 -21.9 -1.9 | 110 26 -24.4 8.9 54 57 19812 110 9 -8.5 3.1 | 142 18 -10.9 13.9 55 54 20117 115 16 -14.5 6.8 | 136 24 -17.0 17.6 56 51 20422 75 15 -14.5 -3.9 | 112 18 -16.9 7.0 57 50 20530 90 15 -15.0 0.0 | 122 21 -17.5 10.8 58 48 20726 90 15 -15.0 0.0 | 122 21 -17.5 10.8 59 46 21031 100 27 -26.6 4.7 | 118 33 -29.0 15.5 60 44 21336 90 36 -36.0 0.0 | 106 40 -38.5 10.8 61 31 23470 80 67 -66.0 -11.6 | 89 68 -68.4 -0.8 62 30 23640 90 56 -56.0 0.0 | 101 59 -58.5 10.8 63 28 24079 90 56 -56.0 0.0 | 101 59 -58.5 10.8 64 25 24689 95 73 -72.7 6.4 | 103 77 -75.2 17.2 65 24 24994 100 64 -63.0 11.1 | 109 69 -65.5 22.0 66 23 25305 100 74 -72.9 12.8 | 107 79 -75.3 23.7 67 22 25603 100 74 -72.9 12.8 | 107 79 -75.3 23.7 68 20 26210 95 70 -69.7 6.1 | 103 74 -72.2 16.9 69 15 27127 90 65 -65.0 0.0 | 99 68 -67.5 10.8 70 13 27737 85 32 -31.9 -2.8 | 103 35 -34.3 8.1 71 12 28042 65 18 -16.3 -7.6 | 100 19 -18.8 3.2 72 11 28346 55 15 -12.3 -8.6 | 99 15 -14.7 2.2 73 9 28956 200 24 8.2 22.6 | 190 34 5.8 33.4 74 8 29566 185 24 2.1 23.9 | 179 35 -0.4 34.8 Wind Parameters Mean winds (0-6000m): 317.3 at 14.8 knts Storm direction: 347.3 at 11.1 knts Shear (0-3000m) pos: 0.0 neg: 3.2 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 120.1 deg Storm rel helicity (0-3000m) pos: 0.6 neg: -68.7 tot: -68.1 m^2/s^2 ave: -22.7 10^-3 m/s^2 rel: -0.77 Storm rel vorticity (0-3000m) horiz: 6.9 stream: -5.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 14.22 Bulk Shear: 39.98 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 53 8 126 11| 0.0 8.9 8.9| 0.0 -25.3 -25.3 -50.5 -0.87| 9.8 -8.5 1000 41 10 111 10| 0.0 7.9 7.9| 0.0 -41.5 -41.5 -41.5 -0.90| 8.5 -7.6 1500 33 12 97 9| 0.0 5.0 5.0| 0.6 -49.9 -49.3 -32.9 -0.73| 8.4 -6.1 2000 24 12 87 8| 0.0 4.3 4.3| 0.6 -54.6 -54.0 -27.0 -0.73| 7.7 -5.6 2500 13 13 71 6| 0.0 4.0 4.0| 0.6 -63.5 -62.9 -25.2 -0.76| 7.7 -5.8 3000 3 14 48 4| 0.0 3.2 3.2| 0.6 -68.7 -68.1 -22.7 -0.77| 6.9 -5.3 4000 345 14 335 3| 0.0 2.3 2.3| 0.6 -85.3 -84.6 -21.2 -0.76| 6.2 -4.8 5000 329 14 284 5| 0.4 1.7 2.1| 14.8-112.3 -97.4 -19.5 -0.64| 6.5 -4.1 6000 317 15 270 8| 1.3 1.4 2.7| 61.2-112.3 -51.1 -8.5 -0.34| 7.1 -2.4 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251204.12.gif