UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025112812.upa.cvt Date: 1200Z 28 NOV 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 28 NOV 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 21.6 310 4 295.9 298.7 294.7 341.4 15.80 1 1000 111 23.2 21.6 91 1.6 22.1 310 4 296.4 299.3 295.2 343.8 16.46 2 941 643 20.6 19.9 96 0.7 20.1 285 10 298.9 301.8 295.4 344.7 15.73 3 925 792 21.4 19.5 89 1.9 20.1 310 7 301.2 304.1 296.0 347.1 15.61 4 873 1294 19.6 15.9 79 3.7 17.1 2 9 304.3 306.8 295.1 343.5 13.13 5 850 1524 18.2 15.3 83 2.9 16.3 30 10 305.2 307.6 295.3 344.0 12.97 6 754 2544 13.0 9.3 78 3.7 10.7 62 17 310.2 312.1 294.4 340.2 9.80 7 700 3166 9.6 6.8 83 2.8 7.9 75 14 313.1 314.8 294.5 340.7 8.90 8 588 4596 1.4 0.5 94 0.9 0.9 89 9 319.6 320.9 294.6 341.2 6.77 9 576 4762 1.8 -2.2 75 4.0 -0.3 74 8 321.9 323.0 294.4 340.3 5.66 10 543 5236 -2.1 -2.7 96 0.6 -2.4 34 5 322.8 323.9 294.7 341.6 5.79 11 506 5796 -4.5 -7.6 79 3.1 -6.0 343 1 326.4 327.3 294.5 340.7 4.27 12 500 5890 -5.1 -7.6 83 2.5 -6.2 245 3 326.8 327.7 294.6 341.3 4.32 13 412 7386 -15.7 -15.7 100 0.0 -15.7 281 11 331.8 332.3 294.6 341.2 2.73 14 400 7610 -15.9 -17.8 85 1.9 -16.6 250 12 334.3 334.8 295.0 342.6 2.36 15 329 9057 -24.9 -30.9 57 6.0 -26.2 268 17 341.2 341.4 295.4 344.5 0.88 16 300 9720 -30.7 -35.5 63 4.8 -31.4 260 15 342.1 342.2 295.4 344.5 0.62 17 284 10105 -33.7 -41.7 44 8.0 -34.6 257 15 343.2 343.3 295.4 344.6 0.35 18 265 10584 -38.1 -42.8 61 4.7 -38.6 273 13 343.6 343.7 295.5 345.0 0.33 19 250 10980 -41.5 -48.5 47 7.0 -42.0 300 18 344.4 344.4 295.6 345.1 0.19 20 214 12013 -50.9 -58.9 38 8.0 -51.1 325 21 345.4 345.4 295.7 345.7 0.06 21 201 12418 -54.1 -67.1 19 13.0 -54.4 308 26 346.6 346.6 295.9 346.7 0.02 22 200 12450 -54.3 -66.3 22 12.0 -54.5 305 27 346.8 346.8 296.0 346.9 0.03 23 177 13222 -60.3 -70.3 26 10.0 -60.4 294 33 349.3 349.3 296.5 349.3 0.02 24 150 14240 -66.1 -80.1 12 14.0 -66.2 280 44 356.2 356.2 298.0 356.2 0.00 25 129 15146 -69.3 -84.3 10 15.0 -69.4 311 23 366.2 366.2 299.9 366.2 0.00 26 101 16564 -80.7 -85.6 43 4.9 -80.7 312 9 370.8 370.8 300.7 370.8 0.00 27 100 16620 -81.1 -85.7 46 4.6 -81.1 315 9 371.0 371.0 300.8 371.0 0.00 28 83 17644 -89.5 -94.5 38 5.0 -89.5 70 18 374.2 374.2 301.3 374.2 0.00 29 78 17985 -82.1 -89.1 29 7.0 -82.1 89 39 396.3 396.3 304.7 396.3 0.00 30 70 18600 -75.7 -88.7 11 13.0 -75.7 55 7 422.4 422.4 308.0 422.4 0.00 31 64 19121 -74.3 -89.3 8 15.0 -74.3 308 11 436.5 436.5 309.5 436.5 0.00 32 58 19693 -75.7 -89.7 9 14.0 -75.7 215 4 445.8 445.8 310.4 445.8 0.00 33 52 20335 -69.1 -91.1 3 22.0 -69.3 92 25 475.3 475.3 313.1 475.3 0.00 34 50 20570 -68.7 -90.7 3 22.0 -68.9 100 33 481.6 481.6 313.6 481.6 0.00 35 44 21337 -68.3 -90.3 3 22.0 -68.5 102 46 500.5 500.5 315.0 500.5 0.00 36 30 23670 -62.1 -89.1 2 27.0 -62.8 95 63 575.3 575.3 319.5 575.4 0.00 37 29 23881 -61.3 -88.8 1 27.5 -62.1 90 66 583.2 583.2 319.8 583.2 0.00 38 20 26240 -52.5 -85.5 1 33.0 -55.3 85 59 675.5 675.5 323.6 675.6 0.01 39 17 27297 -49.9 -83.9 1 34.0 -53.8 85 58 716.0 716.0 325.0 716.1 0.02 TRP 83 17644 -89.5 -94.5 38 5.0 -89.5 70 18 374.2 374.2 301.3 374.2 0.00 WND 29 23881 -61.3 -88.8 1 27.5 -62.1 90 66 583.2 583.2 319.8 583.2 0.00 Sounding variables and indices 1000-500 mb thick: 5779.00 m Freezing level: 560.77 mb = 4980.85 m = 16341.17 ft Wetbulb zero: 579.24 mb = 4716.95 m = 15475.36 ft Precipitable water: 2.27 inches Sfc-500 mean rel hum: 85.42 % Est. max temperature: 32.21 C = 89.98 F Sfc-Lift cond lev (LCL): 974.42 mb = 337.49 m = 1107.24 ft T: 22.09 C 700-500 lapse rate: 5.40 C/km ThetaE index: 3.77 C Layer 754.0- 700.0 mb Conv cond level (CCL): 853.41 mb = 1489.44 m = 4886.55 ft Mean mixing ratio: 15.79 g/kg Conv temperature: 32.20 C = 89.95 F Cap Strength: 2.12 C Lifted Index: -0.32 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.45 C Lifted Index @700 mb: 0.44 C Showalter Index: 0.10 C Risk: Thunderstorms probable Total Totals Index: 43.70 C Risk: None Vertical Totals Index: 23.30 C Cross Totals Index: 20.40 C K Index: 35.80 Risk: > 80 % chance of thunderstorms Sweat Index: 206.60 Risk: None Energy Index: -0.59 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 138.48 J/kg Max Up Vert Vel: 16.64 m/s Conv Inhibition (B-): 115.66 J/kg Cap Strength: 2.13 C Lift Cond Lev (LCL): 932.25 mb = 723.95 m = 2375.13 ft Lev Free Conv (LFC): 657.25 mb = 3682.64 m = 12081.99 ft Equ Level (EL): 577.25 mb = 4744.64 m = 15566.21 ft B at Equ Level: 41.01 J/kg Max Parcel Lev (MPL): 187.25 mb = 12866.27 m = 42211.66 ft Wind level data Storm motion: 93 at 7 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 85 310 4 3.1 -2.6 | 285 11 10.5 -2.9 1 1000 111 310 4 3.1 -2.6 | 285 11 10.5 -2.9 2 978 305 265 10 10.0 0.9 | 268 17 17.4 0.5 3 945 610 280 11 10.8 -1.9 | 277 18 18.3 -2.2 4 925 792 310 7 5.4 -4.5 | 291 14 12.8 -4.8 5 912 914 315 8 5.7 -5.7 | 295 14 13.1 -6.0 6 850 1524 30 10 -5.0 -8.7 | 345 9 2.5 -9.0 7 850 1524 30 10 -5.0 -8.7 | 345 9 2.5 -9.0 8 820 1829 30 13 -6.5 -11.3 | 355 12 1.0 -11.6 9 791 2134 40 16 -10.3 -12.3 | 13 13 -2.8 -12.6 10 763 2438 60 16 -13.9 -8.0 | 37 11 -6.4 -8.3 11 736 2743 65 18 -16.3 -7.6 | 48 12 -8.8 -7.9 12 710 3048 75 14 -13.5 -3.6 | 57 7 -6.1 -4.0 13 700 3166 75 14 -13.5 -3.6 | 57 7 -6.1 -4.0 14 684 3353 65 11 -10.0 -4.6 | 27 6 -2.5 -5.0 15 634 3962 110 12 -11.3 4.1 | 135 5 -3.8 3.8 16 611 4267 115 11 -10.0 4.6 | 150 5 -2.5 4.3 17 506 5791 345 1 0.3 -1.0 | 280 8 7.7 -1.3 18 500 5890 245 3 2.7 1.3 | 265 10 10.2 0.9 19 487 6096 235 4 3.3 2.3 | 260 11 10.7 2.0 20 432 7010 250 10 9.4 3.4 | 260 17 16.9 3.1 21 416 7315 290 11 10.3 -3.8 | 283 18 17.8 -4.1 22 400 7610 250 12 11.3 4.1 | 259 19 18.7 3.8 23 399 7620 250 12 11.3 4.1 | 259 19 18.7 3.8 24 368 8230 270 18 18.0 -0.0 | 271 25 25.5 -0.3 25 353 8534 250 19 17.9 6.5 | 256 26 25.3 6.2 26 338 8839 265 22 21.9 1.9 | 267 29 29.4 1.6 27 325 9144 270 14 14.0 -0.0 | 271 21 21.5 -0.3 28 311 9449 240 13 11.3 6.5 | 252 20 18.7 6.2 29 300 9720 260 15 14.8 2.6 | 264 22 22.2 2.3 30 299 9754 260 14 13.8 2.4 | 264 21 21.3 2.1 31 273 10363 255 16 15.5 4.1 | 261 23 22.9 3.8 32 262 10668 280 12 11.8 -2.1 | 277 19 19.3 -2.4 33 250 10980 300 18 15.6 -9.0 | 292 25 23.1 -9.3 34 228 11582 315 20 14.1 -14.1 | 304 26 21.6 -14.5 35 208 12192 330 22 11.0 -19.1 | 316 27 18.5 -19.4 36 200 12450 305 27 22.1 -15.5 | 298 34 29.6 -15.8 37 189 12802 300 29 25.1 -14.5 | 294 36 32.6 -14.8 38 150 14240 280 44 43.3 -7.6 | 279 51 50.8 -8.0 39 148 14326 280 44 43.3 -7.6 | 279 51 50.8 -8.0 40 127 15240 315 20 14.1 -14.1 | 304 26 21.6 -14.5 41 120 15545 320 20 12.9 -15.3 | 308 26 20.3 -15.7 42 108 16154 290 12 11.3 -4.1 | 283 19 18.7 -4.4 43 100 16620 315 9 6.4 -6.4 | 296 15 13.8 -6.7 44 97 16764 315 9 6.4 -6.4 | 296 15 13.8 -6.7 45 92 17069 345 4 1.0 -3.9 | 296 9 8.5 -4.2 46 83 17644 70 18 -16.9 -6.2 | 55 11 -9.4 -6.5 47 82 17678 50 9 -6.9 -5.8 | 355 6 0.6 -6.1 48 78 17983 90 40 -40.0 0.0 | 89 33 -32.5 -0.3 49 70 18600 55 7 -5.7 -4.0 | 338 5 1.7 -4.4 50 67 18898 75 13 -12.6 -3.4 | 54 6 -5.1 -3.7 51 63 19202 265 10 10.0 0.9 | 268 17 17.4 0.5 52 60 19507 240 10 8.7 5.0 | 254 17 16.1 4.7 53 57 19812 200 1 0.3 0.9 | 266 8 7.8 0.6 54 54 20117 85 17 -16.9 -1.5 | 79 10 -9.5 -1.8 55 50 20570 100 33 -32.5 5.7 | 102 26 -25.0 5.4 56 49 20726 105 26 -25.1 6.7 | 110 19 -17.6 6.4 57 42 21641 100 56 -55.1 9.7 | 101 49 -47.7 9.4 58 38 22250 100 58 -57.1 10.1 | 101 51 -49.7 9.7 59 30 23670 95 63 -62.8 5.5 | 95 56 -55.3 5.2 60 29 23881 90 66 -66.0 0.0 | 90 59 -58.5 -0.3 61 27 24384 90 66 -66.0 0.0 | 90 59 -58.5 -0.3 62 20 26240 85 59 -58.8 -5.1 | 84 52 -51.3 -5.5 63 13 27737 85 56 -55.8 -4.9 | 84 49 -48.3 -5.2 Wind Parameters Mean winds (0-6000m): 62.6 at 10.0 knts Storm direction: 92.6 at 7.5 knts Shear (0-3000m) pos: 4.2 neg: 1.3 tot: 5.5 10-3/s Storm rel Dir Shear (0-3000m): 131.4 deg Storm rel helicity (0-3000m) pos: 107.5 neg: -14.5 tot: 92.9 m^2/s^2 ave: 31.0 10^-3 m/s^2 rel: 0.58 Storm rel vorticity (0-3000m) horiz: 8.2 stream: 4.8 10^-3/s Energy-Hel index: 0.07 Bulk Rich Number: 3.22 Bulk Shear: 42.96 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 ------------------------------------------------------------------------------- 500 275 9 274 16| 0.0 8.0 8.0| 8.7 -14.5 -5.8 -11.6 -0.20| 10.2 -2.0 1000 290 9 282 16| 4.9 4.0 8.9| 41.0 -14.5 26.5 26.5 0.30| 10.4 3.1 1500 315 9 296 15| 6.1 2.7 8.8| 66.0 -14.5 51.5 34.3 0.48| 10.1 4.9 2000 347 10 316 14| 5.9 2.0 7.9| 80.1 -14.5 65.6 32.8 0.54| 9.0 4.8 2500 12 11 335 12| 5.5 1.6 7.1|100.5 -14.5 86.0 34.4 0.60| 8.7 5.2 3000 29 12 352 11| 4.2 1.3 5.5|107.5 -14.5 92.9 31.0 0.58| 8.2 4.8 4000 48 12 10 9| 2.9 1.0 3.9|117.9 -19.3 98.5 24.6 0.56| 7.8 4.3 5000 57 11 18 7| 2.3 1.7 4.0|118.7 -25.6 93.2 18.6 0.36| 7.5 2.7 6000 63 10 16 5| 1.9 1.9 3.8|118.7 -43.5 75.2 12.5 0.21| 7.1 1.5 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251128.12.gif