UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120812.upa.cvt Date: 1200Z 8 DEC 25 Searching for SBTS... Searching the city database file for: SBTS ... Date:1200Z 8 DEC 25 Station: SBTS WMO ident: 82026 Latitude: 2.23 Longitude: -55.95 Elevation: 344.00 ------------------------------------------------------------------------------- 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 107 SFC 973 344 27.0 20.0 66 7.0 22.0 35 7 302.5 305.3 296.1 347.7 15.30 2 947 584 23.0 19.5 81 3.5 20.5 53 7 300.8 303.6 295.6 345.5 15.24 3 925 791 21.0 19.0 88 2.0 19.6 60 8 300.8 303.6 295.6 345.2 15.12 4 897 1058 18.8 18.6 99 0.2 18.7 87 14 301.2 304.0 295.7 345.9 15.21 5 880 1223 18.0 16.5 91 1.5 17.0 95 23 302.0 304.5 294.8 342.0 13.54 6 850 1521 17.6 14.7 83 2.9 15.7 95 21 304.6 306.9 294.7 341.8 12.47 7 704 3113 11.0 3.0 58 8.0 6.4 60 6 314.2 315.4 293.2 335.4 6.76 8 700 3161 10.8 2.8 58 8.0 6.2 60 6 314.4 315.7 293.2 335.5 6.70 9 637 3940 6.2 0.2 65 6.0 2.9 39 5 317.8 319.0 293.6 337.3 6.11 10 586 4618 1.8 -5.2 60 7.0 -1.6 34 4 320.4 321.2 293.0 334.8 4.43 11 582 4673 1.8 -11.2 37 13.0 -3.8 35 4 321.0 321.5 291.8 330.3 2.79 12 547 5170 -0.7 -13.7 37 13.0 -6.0 41 3 323.8 324.2 292.3 332.0 2.43 13 500 5880 -6.7 -11.7 68 5.0 -8.8 50 3 324.9 325.5 293.2 335.4 3.12 14 482 6166 -8.5 -12.2 75 3.7 -10.0 51 4 326.1 326.7 293.4 336.6 3.11 15 475 6280 -8.9 -18.9 44 10.0 -12.3 44 3 326.9 327.3 292.6 333.2 1.81 16 469 6379 -9.5 -14.4 67 4.9 -11.4 38 3 327.4 327.9 293.4 336.5 2.67 17 465 6445 -9.5 -19.5 44 10.0 -12.8 34 2 328.2 328.5 292.9 334.3 1.75 18 457 6580 -10.3 -18.3 52 8.0 -13.0 26 2 328.8 329.2 293.2 335.7 1.98 19 454 6631 -10.5 -13.2 81 2.7 -11.6 23 2 329.2 329.8 294.2 339.6 3.05 20 444 6803 -11.1 -25.1 30 14.0 -15.1 13 1 330.5 330.8 292.9 334.6 1.12 21 400 7600 -15.5 -28.5 32 13.0 -18.7 35 5 334.8 335.0 293.9 338.2 0.91 22 395 7695 -16.1 -30.1 29 14.0 -19.4 45 5 335.3 335.4 293.9 338.2 0.79 23 375 8082 -19.1 -38.1 17 19.0 -22.5 87 6 336.3 336.4 293.8 337.8 0.38 24 347 8653 -23.5 -36.5 29 13.0 -25.8 98 8 337.9 338.0 294.3 339.8 0.48 25 345 8695 -23.9 -29.9 58 6.0 -25.2 98 8 337.9 338.1 294.7 341.4 0.93 26 340 8801 -24.9 -28.4 73 3.5 -25.7 96 8 338.0 338.2 294.8 342.0 1.08 27 335 8909 -25.3 -38.3 29 13.0 -27.3 94 9 338.9 339.0 294.4 340.5 0.42 28 326 9106 -26.1 -43.1 19 17.0 -28.4 91 10 340.4 340.5 294.7 341.4 0.26 29 321 9217 -26.7 -42.7 21 16.0 -28.9 95 11 341.1 341.1 294.8 342.2 0.28 30 300 9700 -31.1 -40.1 41 9.0 -32.3 125 18 341.5 341.6 295.1 343.1 0.39 31 277 10263 -35.9 -38.5 77 2.6 -36.2 139 23 342.5 342.6 295.4 344.4 0.50 32 250 10970 -41.5 -46.5 58 5.0 -41.9 140 29 344.4 344.4 295.6 345.3 0.23 33 241 11217 -43.7 -48.6 58 4.9 -44.0 140 29 344.7 344.7 295.6 345.5 0.19 34 231 11499 -45.5 -56.5 28 11.0 -46.0 146 31 346.2 346.2 295.8 346.5 0.08 35 224 11703 -47.3 -53.3 50 6.0 -47.6 151 34 346.5 346.5 296.0 347.0 0.12 36 216 11941 -49.3 -63.3 18 14.0 -49.7 157 36 347.0 347.0 296.0 347.1 0.04 37 200 12440 -53.1 -65.1 22 12.0 -53.4 170 42 348.7 348.7 296.4 348.8 0.03 38 194 12636 -54.9 -70.9 12 16.0 -55.2 170 42 348.9 348.9 296.4 348.9 0.01 39 173 13362 -60.9 -74.9 14 14.0 -61.0 161 45 350.6 350.6 296.8 350.6 0.01 40 150 14240 -66.7 -77.7 20 11.0 -66.8 145 32 355.2 355.2 297.7 355.2 0.01 41 140 14652 -69.5 -76.5 35 7.0 -69.5 145 28 357.3 357.4 298.2 357.4 0.01 42 129 15134 -73.1 -81.1 29 8.0 -73.1 142 6 359.3 359.3 298.6 359.4 0.00 43 121 15507 -73.1 -84.1 17 11.0 -73.1 191 10 366.0 366.0 299.8 366.0 0.00 44 100 16600 -80.3 -87.3 30 7.0 -80.3 255 39 372.6 372.6 301.0 372.6 0.00 45 82 17710 -84.7 -90.7 34 6.0 -84.7 320 37 385.3 385.3 303.1 385.3 0.00 46 70 18590 -82.5 -89.5 29 7.0 -82.5 240 22 407.9 407.9 306.2 407.9 0.00 47 67 18834 -81.9 -88.9 29 7.0 -81.9 245 22 414.3 414.3 307.0 414.3 0.00 48 61 19365 -76.3 -87.3 16 11.0 -76.3 290 22 438.1 438.1 309.7 438.1 0.00 49 50 20520 -72.1 -89.1 6 17.0 -72.2 75 37 473.6 473.6 313.0 473.6 0.00 50 48 20761 -71.7 -89.7 5 18.0 -71.8 80 40 480.1 480.1 313.5 480.1 0.00 51 48 20761 -72.1 -90.1 5 18.0 -72.2 80 40 479.1 479.1 313.4 479.2 0.00 52 44 21281 -66.1 -90.1 2 24.0 -66.4 98 43 505.9 505.9 315.4 505.9 0.00 53 42 21563 -66.7 -90.7 2 24.0 -67.0 96 44 511.2 511.2 315.7 511.2 0.00 54 30 23630 -60.1 -90.1 1 30.0 -61.0 95 59 580.8 580.8 319.7 580.8 0.00 55 23 25302 -56.9 -88.9 1 32.0 -58.5 90 71 636.1 636.1 322.2 636.1 0.01 56 21 25878 -56.9 -88.9 1 32.0 -58.6 87 75 652.8 652.8 322.8 652.9 0.01 57 20 26190 -53.0 -87.9 1 34.9 -55.7 85 77 673.9 673.9 323.6 674.0 0.01 58 19 26524 -48.9 -86.9 0 38.0 -52.9 85 77 696.6 696.6 324.3 696.7 0.01 59 16 27669 -42.5 -82.5 0 40.0 -49.5 79 61 752.6 752.6 326.0 752.9 0.03 60 16 27669 -42.7 -82.7 0 40.0 -49.6 79 61 752.0 752.0 326.0 752.2 0.03 TRP 82 17710 -84.7 -90.7 34 6.0 -84.7 320 37 385.3 385.3 303.1 385.3 0.00 WND 20 26190 -53.0 -87.9 1 34.9 -55.7 85 77 673.9 673.9 323.6 674.0 0.01 Sounding variables and indices 1000-500 mb thick: 5773.00 m Freezing level: 556.80 mb = 5031.13 m = 16506.13 ft Wetbulb zero: 604.32 mb = 4367.54 m = 14329.02 ft Precipitable water: 1.73 inches Sfc-500 mean rel hum: 65.50 % Est. max temperature: 30.68 C = 87.22 F Sfc-Lift cond lev (LCL): 878.83 mb = 1233.94 m = 4048.32 ft T: 17.98 C 700-500 lapse rate: 6.44 C/km ThetaE index: 10.53 C Layer 880.0- 700.0 mb Conv cond level (CCL): 880.80 mb = 1214.73 m = 3985.30 ft Mean mixing ratio: 14.92 g/kg Conv temperature: 26.45 C = 79.60 F Cap Strength: 1.55 C Lifted Index: -2.03 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -0.07 C Lifted Index @700 mb: 1.52 C Showalter Index: -0.63 C Risk: Thunderstorms probable Total Totals Index: 45.70 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.30 C Cross Totals Index: 21.40 C K Index: 31.00 Risk: 60-80 % chance of thunderstorms Sweat Index: 221.40 Risk: None Energy Index: -1.27 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 144.02 J/kg Max Up Vert Vel: 16.97 m/s Conv Inhibition (B-): 114.30 J/kg Cap Strength: 1.53 C Lift Cond Lev (LCL): 889.26 mb = 1132.27 m = 3714.77 ft Lev Free Conv (LFC): 594.26 mb = 4503.96 m = 14776.61 ft Equ Level (EL): 554.26 mb = 5064.69 m = 16616.23 ft B at Equ Level: 8.20 J/kg Max Parcel Lev (MPL): 184.26 mb = 12962.61 m = 42527.72 ft Wind level data Storm motion: 103 at 6 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 ---------------------------------------------------------- 0 973 344 35 7 -4.0 -5.7 | 346 7 1.8 -7.1 1 944 610 55 7 -5.7 -4.0 | 359 5 0.1 -5.4 2 925 791 60 8 -6.9 -4.0 | 11 5 -1.1 -5.4 3 912 914 80 7 -6.9 -1.2 | 22 3 -1.0 -2.6 4 880 1219 95 23 -22.9 2.0 | 92 17 -17.1 0.6 5 850 1521 95 21 -20.9 1.8 | 92 15 -15.1 0.4 6 820 1829 105 13 -12.6 3.4 | 106 7 -6.7 2.0 7 791 2134 90 14 -14.0 0.0 | 80 8 -8.2 -1.4 8 763 2438 80 14 -13.8 -2.4 | 64 9 -7.9 -3.8 9 735 2743 60 11 -9.5 -5.5 | 28 8 -3.7 -6.9 10 709 3048 60 6 -5.2 -3.0 | 352 4 0.7 -4.4 11 700 3161 60 6 -5.2 -3.0 | 352 4 0.7 -4.4 12 610 4267 30 4 -2.0 -3.5 | 322 6 3.8 -4.9 13 500 5880 50 3 -2.3 -1.9 | 313 5 3.5 -3.3 14 486 6096 55 4 -3.3 -2.3 | 325 4 2.6 -3.7 15 432 7010 0 0 -0.0 -0.0 | 283 6 5.8 -1.4 16 400 7600 35 5 -2.9 -4.1 | 331 6 3.0 -5.5 17 367 8230 105 6 -5.8 1.6 | 198 0 0.1 0.2 18 324 9144 90 10 -10.0 0.0 | 71 4 -4.2 -1.4 19 311 9449 115 14 -12.7 5.9 | 123 8 -6.8 4.5 20 300 9700 125 18 -14.7 10.3 | 135 13 -8.9 8.9 21 261 10668 150 27 -13.5 23.4 | 161 23 -7.7 22.0 22 250 10970 140 29 -18.6 22.2 | 148 24 -12.8 20.8 23 239 11278 140 29 -18.6 22.2 | 148 24 -12.8 20.8 24 200 12440 170 42 -7.3 41.4 | 178 40 -1.4 40.0 25 189 12802 170 42 -7.3 41.4 | 178 40 -1.4 40.0 26 163 13716 155 47 -19.9 42.6 | 161 44 -14.0 41.2 27 150 14240 145 32 -18.4 26.2 | 153 28 -12.5 24.8 28 140 14630 145 29 -16.6 23.8 | 154 25 -10.8 22.4 29 133 14935 145 12 -6.9 9.8 | 173 9 -1.0 8.4 30 126 15240 140 2 -1.3 1.5 | 268 5 4.6 0.1 31 114 15850 265 21 20.9 1.8 | 269 27 26.8 0.4 32 108 16154 280 24 23.6 -4.2 | 281 30 29.5 -5.6 33 100 16600 255 39 37.7 10.1 | 259 44 43.5 8.7 34 97 16764 255 39 37.7 10.1 | 259 44 43.5 8.7 35 92 17069 260 35 34.5 6.1 | 263 41 40.3 4.7 36 82 17678 305 34 27.9 -19.5 | 302 40 33.7 -20.9 37 82 17710 320 37 23.8 -28.3 | 315 42 29.6 -29.7 38 78 17983 320 36 23.1 -27.6 | 315 41 29.0 -29.0 39 74 18288 330 18 9.0 -15.6 | 319 23 14.8 -17.0 40 70 18590 240 22 19.1 11.0 | 249 27 24.9 9.6 41 70 18593 225 22 15.6 15.6 | 237 26 21.4 14.2 42 57 19812 325 22 12.6 -18.0 | 316 27 18.5 -19.4 43 54 20117 15 12 -3.1 -11.6 | 348 13 2.7 -13.0 44 51 20422 60 19 -16.5 -9.5 | 44 15 -10.6 -10.9 45 50 20520 75 37 -35.7 -9.6 | 70 32 -29.9 -11.0 46 46 21031 85 43 -42.8 -3.7 | 82 37 -37.0 -5.1 47 44 21336 100 43 -42.3 7.5 | 99 37 -36.5 6.1 48 36 22555 80 46 -45.3 -8.0 | 77 41 -39.5 -9.4 49 32 23165 100 55 -54.2 9.6 | 100 49 -48.3 8.2 50 30 23630 95 59 -58.8 5.1 | 94 53 -52.9 3.8 51 27 24384 95 65 -64.8 5.7 | 94 59 -58.9 4.3 52 20 26190 85 77 -76.7 -6.7 | 83 71 -70.9 -8.1 53 18 26518 85 77 -76.7 -6.7 | 83 71 -70.9 -8.1 54 17 26822 75 69 -66.6 -17.9 | 72 64 -60.8 -19.3 55 12 28042 100 20 -19.7 3.5 | 99 14 -13.8 2.1 Wind Parameters Mean winds (0-6000m): 73.4 at 8.0 knts Storm direction: 103.4 at 6.0 knts Shear (0-3000m) pos: 2.1 neg: 1.8 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): -0.1 deg Storm rel helicity (0-3000m) pos: 30.5 neg: -29.5 tot: 1.0 m^2/s^2 ave: 0.3 10^-3 m/s^2 rel: -0.01 Storm rel vorticity (0-3000m) horiz: 8.4 stream: -0.1 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 126.78 Bulk Shear: 1.14 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 52 7 359 6| 4.4 0.0 4.4| 4.7 0.0 4.7 9.3 0.66| 4.7 3.1 1000 80 12 58 7| 10.1 0.0 10.1| 23.0 -0.2 22.8 22.8 0.54| 11.5 6.1 1500 88 14 77 8| 4.3 0.0 4.3| 30.5 -0.3 30.2 20.1 0.45| 10.9 4.9 2000 89 14 79 8| 3.2 1.3 4.5| 30.5 -10.5 20.0 10.0 0.26| 9.5 2.4 2500 86 14 73 8| 2.6 1.9 4.4| 30.5 -25.3 5.3 2.1 0.06| 9.2 0.5 3000 83 12 66 7| 2.1 1.8 3.9| 30.5 -29.5 1.0 0.3 -0.01| 8.4 -0.1 4000 79 10 52 6| 1.6 1.6 3.2| 30.5 -32.9 -2.4 -0.6 -0.06| 6.6 -0.4 5000 76 9 39 5| 1.4 1.3 2.7| 30.5 -33.6 -3.0 -0.6 -0.06| 5.4 -0.3 6000 73 8 26 4| 1.2 1.1 2.3| 31.5 -35.2 -3.7 -0.6 -0.07| 4.7 -0.3 Wrote GIF file: /home/apache/climate/data/raob//SBTS/skewt/SBTS.skewt.20251208.12.gif