UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120312.upa.cvt Date: 1200Z 3 DEC 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 3 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 22.0 89 2.0 22.6 140 2 297.1 300.1 295.7 345.8 16.86 1 1000 91 24.0 22.2 90 1.8 22.7 80 3 297.1 300.2 295.9 346.6 17.09 2 988 197 24.0 23.3 96 0.7 23.5 95 3 298.2 301.5 297.1 352.1 18.53 3 952 524 25.2 17.2 61 8.0 19.7 78 10 302.6 305.0 294.6 341.3 13.08 4 925 777 23.0 19.1 79 3.9 20.2 40 15 302.8 305.6 296.1 347.9 15.22 5 850 1510 18.0 18.0 100 0.0 18.0 35 13 305.0 307.9 296.9 351.2 15.46 6 839 1622 17.2 17.2 100 0.0 17.2 34 13 305.3 308.1 296.6 349.8 14.88 7 769 2365 15.2 11.4 78 3.8 12.7 354 15 310.8 312.9 295.4 344.8 11.08 8 764 2421 15.2 9.2 67 6.0 11.4 351 16 311.4 313.2 294.6 341.0 9.61 9 738 2714 12.8 9.7 81 3.1 10.8 346 16 311.9 313.9 295.2 343.6 10.30 10 700 3158 10.8 6.5 75 4.3 8.2 325 18 314.4 316.1 294.7 341.6 8.71 11 585 4626 1.0 -3.6 71 4.6 -1.3 299 22 319.6 320.6 293.3 335.8 5.02 12 576 4750 0.2 -8.8 51 9.0 -3.8 297 21 320.1 320.7 292.0 331.3 3.41 13 551 5104 -2.5 -7.2 70 4.7 -4.7 292 18 321.0 321.7 292.9 334.2 4.04 14 541 5249 -2.7 -12.7 46 10.0 -6.8 292 17 322.4 322.9 292.1 331.3 2.66 15 533 5367 -3.5 -4.2 95 0.7 -3.8 296 16 322.8 323.9 294.3 340.0 5.26 16 500 5870 -5.5 -7.7 84 2.2 -6.5 315 12 326.3 327.2 294.5 340.6 4.29 17 484 6125 -6.7 -8.8 85 2.1 -7.7 315 12 327.9 328.7 294.7 341.6 4.07 18 400 7590 -16.1 -16.2 99 0.1 -16.2 295 4 334.1 334.6 295.1 343.5 2.70 19 387 7839 -17.1 -17.6 96 0.5 -17.3 309 3 335.9 336.4 295.4 344.7 2.48 20 308 9512 -29.9 -36.9 51 7.0 -31.0 142 20 340.7 340.8 295.0 342.7 0.52 21 300 9700 -30.5 -34.4 69 3.9 -31.2 130 22 342.4 342.5 295.5 345.0 0.69 22 291 9916 -31.9 -34.1 81 2.2 -32.3 124 23 343.4 343.5 295.8 346.2 0.73 23 276 10288 -35.5 -39.7 65 4.2 -36.0 122 22 343.4 343.5 295.6 345.2 0.44 24 256 10808 -39.3 -43.1 67 3.8 -39.6 118 23 345.3 345.4 295.9 346.6 0.33 25 250 10970 -40.5 -45.5 59 5.0 -40.9 110 25 345.9 345.9 296.0 346.9 0.26 26 235 11388 -43.5 -53.5 32 10.0 -44.0 108 30 347.5 347.5 296.2 348.0 0.11 27 233 11446 -43.9 -51.9 41 8.0 -44.4 107 31 347.7 347.8 296.3 348.3 0.14 28 221 11798 -47.1 -51.8 59 4.7 -47.3 106 35 348.1 348.1 296.4 348.7 0.15 29 200 12450 -52.9 -57.9 55 5.0 -53.1 110 35 349.0 349.0 296.5 349.3 0.08 30 189 12812 -56.1 -63.1 41 7.0 -56.2 113 36 349.5 349.5 296.5 349.7 0.04 31 174 13333 -60.5 -63.5 68 3.0 -60.6 108 37 350.6 350.7 296.8 350.8 0.04 32 150 14240 -68.5 -72.8 54 4.3 -68.5 125 33 352.1 352.1 297.1 352.1 0.01 33 145 14442 -70.3 -75.3 48 5.0 -70.4 128 33 352.4 352.4 297.1 352.4 0.01 34 134 14906 -73.5 -81.5 28 8.0 -73.5 121 37 354.7 354.7 297.7 354.8 0.00 35 101 16534 -78.9 -88.9 18 10.0 -78.9 186 11 374.2 374.2 301.3 374.2 0.00 36 100 16590 -79.1 -89.1 18 10.0 -79.1 265 4 374.9 374.9 301.4 374.9 0.00 37 78 17968 -88.1 -91.1 57 3.0 -88.1 50 25 383.8 383.8 302.9 383.8 0.00 38 75 18181 -86.3 -91.0 42 4.7 -86.3 50 25 391.9 391.9 304.0 392.0 0.00 39 73 18331 -80.1 -87.1 30 7.0 -80.1 36 22 408.1 408.1 306.3 408.1 0.00 40 70 18570 -77.7 -87.7 18 10.0 -77.7 330 10 418.2 418.2 307.5 418.2 0.00 41 67 18822 -76.9 -87.9 16 11.0 -76.9 342 11 425.2 425.2 308.3 425.2 0.00 42 59 19566 -71.3 -88.3 6 17.0 -71.4 163 4 453.5 453.5 311.2 453.5 0.00 43 56 19875 -72.9 -88.9 7 16.0 -73.0 108 3 456.7 456.7 311.5 456.7 0.00 44 53 20201 -69.3 -88.3 5 19.0 -69.5 87 15 472.2 472.2 312.8 472.3 0.00 45 50 20550 -69.7 -88.7 5 19.0 -69.9 95 34 479.2 479.2 313.4 479.3 0.00 46 43 21452 -68.9 -89.9 3 21.0 -69.1 88 40 502.3 502.3 315.1 502.3 0.00 47 40 21884 -70.5 -90.5 4 20.0 -70.7 93 41 508.8 508.8 315.5 508.8 0.00 48 30 23640 -59.5 -87.5 1 28.0 -60.4 90 56 582.4 582.4 319.8 582.5 0.01 49 27 24301 -58.3 -87.3 1 29.0 -59.5 89 59 603.6 603.6 320.7 603.7 0.01 50 23 25307 -59.3 -88.3 1 29.0 -60.6 84 70 629.0 629.0 321.9 629.1 0.01 51 20 26190 -55.3 -86.3 1 31.0 -57.5 80 80 666.9 666.9 323.3 667.0 0.01 52 19 26518 -53.9 -85.9 1 32.0 -56.5 80 82 681.1 681.1 323.8 681.2 0.01 53 18 26867 -51.8 -85.1 1 33.3 -55.1 80 85 698.3 698.3 324.4 698.4 0.02 54 16 27639 -47.3 -83.3 1 36.0 -52.3 79 79 737.0 737.0 325.6 737.2 0.02 TRP 78 17968 -88.1 -91.1 57 3.0 -88.1 50 25 383.8 383.8 302.9 383.8 0.00 WND 18 26867 -51.8 -85.1 1 33.3 -55.1 80 85 698.3 698.3 324.4 698.4 0.02 Sounding variables and indices 1000-500 mb thick: 5779.00 m Freezing level: 574.15 mb = 4776.25 m = 15669.92 ft Wetbulb zero: 601.09 mb = 4403.82 m = 14448.04 ft Precipitable water: 2.27 inches Sfc-500 mean rel hum: 78.52 % Est. max temperature: 31.91 C = 89.44 F Sfc-Lift cond lev (LCL): 972.57 mb = 335.77 m = 1101.61 ft T: 24.51 C 700-500 lapse rate: 6.01 C/km ThetaE index: 12.33 C Layer 700.0- 551.0 mb Conv cond level (CCL): 850.29 mb = 1507.01 m = 4944.20 ft Mean mixing ratio: 15.45 g/kg Conv temperature: 31.93 C = 89.47 F Cap Strength: 2.22 C Lifted Index: -1.42 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.40 C Lifted Index @700 mb: 1.05 C Showalter Index: -2.94 C Risk: Severe thunderstorms possible Total Totals Index: 47.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.50 C Cross Totals Index: 23.50 C K Index: 37.20 Risk: > 80 % chance of thunderstorms Sweat Index: 254.00 Risk: None Energy Index: -2.17 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 342.07 J/kg Max Up Vert Vel: 26.16 m/s Conv Inhibition (B-): 134.94 J/kg Cap Strength: 2.22 C Lift Cond Lev (LCL): 895.73 mb = 1055.75 m = 3463.72 ft Lev Free Conv (LFC): 650.73 mb = 3754.89 m = 12319.03 ft Equ Level (EL): 260.73 mb = 10681.26 m = 35043.07 ft B at Equ Level: 342.03 J/kg Max Parcel Lev (MPL): 140.73 mb = 14617.67 m = 47957.66 ft Wind level data Storm motion: 359 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 85 140 2 -1.3 1.5 | 174 13 -1.4 12.9 1 1000 91 80 3 -3.0 -0.5 | 164 11 -3.1 10.9 2 976 305 110 4 -3.8 1.4 | 163 13 -3.9 12.8 3 943 610 65 12 -10.9 -5.1 | 120 13 -11.0 6.3 4 925 777 40 15 -9.6 -11.5 | 89 10 -9.8 -0.1 5 910 914 35 15 -8.6 -12.3 | 84 9 -8.7 -0.9 6 879 1219 30 17 -8.5 -14.7 | 69 9 -8.6 -3.3 7 850 1510 35 13 -7.5 -10.6 | 96 8 -7.6 0.7 8 849 1524 40 14 -9.0 -10.7 | 94 9 -9.1 0.7 9 790 2134 5 9 -0.8 -9.0 | 159 3 -0.9 2.4 10 762 2438 350 17 3.0 -16.7 | 332 6 2.8 -5.4 11 735 2743 345 16 4.1 -15.5 | 315 6 4.0 -4.1 12 709 3048 325 16 9.2 -13.1 | 281 9 9.0 -1.7 13 700 3158 325 18 10.3 -14.7 | 288 11 10.2 -3.4 14 683 3353 325 18 10.3 -14.7 | 288 11 10.2 -3.4 15 658 3658 300 19 16.5 -9.5 | 263 16 16.3 1.9 16 610 4267 295 18 16.3 -7.6 | 257 17 16.2 3.8 17 587 4572 300 22 19.1 -11.0 | 269 19 18.9 0.4 18 545 5182 290 17 16.0 -5.8 | 251 17 15.8 5.6 19 500 5870 315 12 8.5 -8.5 | 251 9 8.3 2.9 20 486 6096 315 12 8.5 -8.5 | 251 9 8.3 2.9 21 467 6401 315 12 8.5 -8.5 | 251 9 8.3 2.9 22 400 7590 295 4 3.6 -1.7 | 200 10 3.5 9.7 23 382 7925 315 3 2.1 -2.1 | 192 9 2.0 9.3 24 367 8230 300 4 3.5 -2.0 | 199 10 3.3 9.4 25 324 9144 145 10 -5.7 8.2 | 163 20 -5.9 19.6 26 310 9449 145 19 -10.9 15.6 | 158 29 -11.0 27.0 27 300 9700 130 22 -16.9 14.1 | 146 31 -17.0 25.5 28 285 10058 120 23 -19.9 11.5 | 139 30 -20.1 22.9 29 261 10668 125 21 -17.2 12.0 | 143 29 -17.3 23.4 30 250 10970 110 25 -23.5 8.6 | 130 31 -23.6 19.9 31 218 11887 105 36 -34.8 9.3 | 121 41 -34.9 20.7 32 200 12450 110 35 -32.9 12.0 | 125 40 -33.0 23.4 33 180 13106 115 36 -32.6 15.2 | 129 42 -32.8 26.6 34 171 13411 105 37 -35.7 9.6 | 120 42 -35.9 21.0 35 150 14240 125 33 -27.0 18.9 | 138 41 -27.2 30.3 36 148 14326 130 32 -24.5 20.6 | 142 40 -24.7 32.0 37 133 14935 120 37 -32.0 18.5 | 133 44 -32.2 29.9 38 120 15545 115 27 -24.5 11.4 | 133 34 -24.6 22.8 39 108 16154 75 19 -18.4 -4.9 | 109 20 -18.5 6.5 40 102 16459 85 21 -20.9 -1.8 | 114 23 -21.1 9.6 41 100 16590 265 4 4.0 0.3 | 198 12 3.8 11.7 42 97 16764 265 4 4.0 0.3 | 198 12 3.8 11.7 43 92 17069 270 13 13.0 -0.0 | 228 17 12.9 11.4 44 87 17374 275 10 10.0 -0.9 | 223 14 9.8 10.5 45 82 17678 75 10 -9.7 -2.6 | 132 13 -9.8 8.8 46 78 17968 50 25 -19.2 -16.1 | 76 20 -19.3 -4.7 47 74 18288 50 25 -19.2 -16.1 | 76 20 -19.3 -4.7 48 70 18570 330 10 5.0 -8.7 | 241 6 4.9 2.7 49 70 18593 40 15 -9.6 -11.5 | 89 10 -9.8 -0.1 50 66 18898 325 10 5.7 -8.2 | 240 6 5.6 3.2 51 63 19202 240 10 8.7 5.0 | 207 18 8.5 16.4 52 57 19812 115 1 -0.9 0.4 | 175 12 -1.0 11.8 53 54 20117 85 10 -10.0 -0.9 | 136 15 -10.1 10.5 54 50 20550 95 34 -33.9 3.0 | 113 37 -34.0 14.4 55 46 21031 95 39 -38.9 3.4 | 111 42 -39.0 14.8 56 42 21641 85 40 -39.8 -3.5 | 101 41 -40.0 7.9 57 38 22250 105 42 -40.6 10.9 | 119 46 -40.7 22.3 58 34 22860 85 54 -53.8 -4.7 | 97 54 -53.9 6.7 59 31 23470 100 63 -62.0 10.9 | 110 66 -62.2 22.3 60 30 23640 90 56 -56.0 0.0 | 101 57 -56.1 11.4 61 28 24079 90 56 -56.0 0.0 | 101 57 -56.1 11.4 62 20 26190 80 80 -78.8 -13.9 | 88 79 -78.9 -2.5 63 18 26867 80 85 -83.7 -14.8 | 88 84 -83.9 -3.4 64 17 27127 80 85 -83.7 -14.8 | 88 84 -83.9 -3.4 65 14 27737 75 60 -58.0 -15.5 | 86 58 -58.1 -4.1 Wind Parameters Mean winds (0-6000m): 329.3 at 15.2 knts Storm direction: 359.3 at 11.4 knts Shear (0-3000m) pos: 0.5 neg: 3.6 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 109.8 deg Storm rel helicity (0-3000m) pos: 10.4 neg: -78.3 tot: -67.9 m^2/s^2 ave: -22.6 10^-3 m/s^2 rel: -0.49 Storm rel vorticity (0-3000m) horiz: 8.9 stream: -4.3 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 7.65 Bulk Shear: 44.71 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 84 6 151 12| 0.0 11.2 11.2| 0.0 -39.9 -39.9 -79.9 -0.90| 13.2-11.8 1000 52 10 122 10| 0.0 8.7 8.7| 0.0 -65.5 -65.5 -65.5 -0.90| 11.8-10.6 1500 43 12 108 9| 1.0 5.8 6.7| 7.4 -67.4 -60.0 -40.0 -0.65| 9.5 -6.2 2000 39 12 107 8| 0.7 3.5 4.2| 10.3 -67.4 -57.1 -28.6 -0.43| 9.0 -3.8 2500 29 12 97 6| 0.6 4.3 4.9| 10.4 -69.5 -59.1 -23.6 -0.45| 9.3 -4.2 3000 18 13 78 4| 0.5 3.6 4.0| 10.4 -78.3 -67.9 -22.6 -0.49| 8.9 -4.3 4000 354 14 334 3| 0.4 2.7 3.1| 12.6-104.8 -92.2 -23.0 -0.50| 8.1 -4.1 5000 336 15 294 7| 0.3 1.7 2.1| 28.4-128.5-100.0 -20.0 -0.46| 7.4 -3.4 6000 329 15 282 8| 0.4 1.4 1.9| 31.4-133.5-102.1 -17.0 -0.42| 7.0 -2.9 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251203.12.gif