UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041512.upa.cvt Date: 1200Z 15 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 15 APR 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 1004 85 23.0 22.0 94 1.0 22.3 70 4 295.8 298.8 295.3 344.2 16.81 1 1000 114 23.2 22.5 96 0.7 22.7 70 4 296.4 299.5 295.8 346.6 17.41 2 989 211 25.0 20.1 74 4.9 21.5 90 6 299.1 301.9 295.1 343.2 15.14 3 975 337 24.8 21.8 83 3.0 22.6 104 8 300.1 303.2 296.7 350.2 17.10 4 925 801 23.6 16.6 65 7.0 18.8 5 5 303.4 305.8 294.8 341.9 12.95 5 915 896 23.2 15.2 61 8.0 17.8 348 7 304.0 306.2 294.2 339.6 11.95 6 850 1535 18.4 15.5 83 2.9 16.4 335 9 305.4 307.9 295.4 344.7 13.14 7 824 1801 16.6 14.7 89 1.9 15.3 320 6 306.2 308.6 295.5 344.9 12.87 8 700 3175 9.0 7.3 89 1.7 7.9 160 7 312.5 314.2 294.6 340.9 9.21 9 680 3415 7.6 7.4 99 0.2 7.5 160 7 313.5 315.3 295.1 343.1 9.55 10 654 3735 6.0 2.2 77 3.8 3.8 160 6 315.2 316.5 293.5 336.8 6.88 11 599 4450 1.8 1.7 99 0.1 1.7 151 7 318.4 319.8 294.7 341.4 7.25 12 544 5221 -3.1 -3.8 95 0.7 -3.4 110 10 321.4 322.5 294.0 338.7 5.32 13 539 5294 -3.3 -4.9 89 1.6 -4.1 106 10 322.0 323.0 293.9 338.1 4.94 14 521 5564 -2.3 -8.3 63 6.0 -5.1 87 11 326.4 327.2 294.2 339.5 3.93 15 500 5890 -4.5 -8.3 75 3.8 -6.2 55 13 327.6 328.4 294.6 341.3 4.09 16 470 6375 -7.1 -19.1 38 12.0 -11.3 62 13 330.2 330.5 293.4 336.5 1.80 17 448 6747 -10.1 -12.1 85 2.0 -10.9 71 12 331.0 331.6 294.9 342.5 3.38 18 429 7079 -12.9 -13.2 98 0.3 -13.0 79 11 331.5 332.2 295.0 342.6 3.23 19 403 7554 -15.3 -21.3 60 6.0 -17.1 65 12 334.4 334.7 294.4 340.6 1.73 20 400 7610 -15.7 -20.7 65 5.0 -17.3 60 12 334.6 335.0 294.6 341.1 1.84 21 395 7705 -16.3 -18.8 81 2.5 -17.1 57 13 335.0 335.5 295.0 342.8 2.19 22 388 7840 -16.5 -33.5 22 17.0 -20.1 68 15 336.5 336.6 294.0 338.7 0.58 23 383 7938 -17.1 -24.1 55 7.0 -19.1 75 16 336.9 337.2 294.8 342.1 1.42 24 380 7997 -17.3 -31.3 28 14.0 -20.5 75 16 337.4 337.6 294.4 340.2 0.74 25 375 8096 -18.1 -25.1 54 7.0 -20.0 75 17 337.6 337.9 294.9 342.5 1.33 26 370 8197 -18.9 -25.9 54 7.0 -20.8 75 17 337.9 338.1 294.9 342.5 1.25 27 368 8237 -19.1 -37.1 19 18.0 -22.4 75 17 338.1 338.2 294.3 339.8 0.43 28 350 8610 -21.9 -28.9 53 7.0 -23.5 84 20 339.2 339.4 295.0 343.0 1.00 29 323 9197 -26.1 -32.1 57 6.0 -27.3 99 25 341.3 341.5 295.4 344.4 0.80 30 305 9611 -28.5 -30.1 86 1.6 -28.8 102 31 343.6 343.8 296.1 347.5 1.03 31 300 9730 -29.3 -31.0 85 1.7 -29.6 100 34 344.1 344.3 296.1 347.7 0.96 32 281 10192 -32.7 -36.0 72 3.3 -33.2 95 35 345.7 345.8 296.2 348.1 0.63 33 250 11000 -39.5 -42.2 75 2.7 -39.8 85 37 347.3 347.4 296.4 348.8 0.37 34 220 11864 -46.9 -50.9 64 4.0 -47.1 82 37 348.9 348.9 296.5 349.5 0.16 35 200 12490 -52.7 -55.6 71 2.9 -52.8 80 37 349.3 349.3 296.5 349.7 0.10 36 173 13409 -61.1 -63.9 69 2.8 -61.2 70 36 350.2 350.2 296.7 350.4 0.04 37 168 13590 -63.1 -66.8 61 3.7 -63.1 67 35 349.9 349.9 296.6 350.0 0.03 38 165 13701 -63.5 -68.5 51 5.0 -63.6 65 34 351.0 351.0 296.8 351.1 0.02 39 158 13966 -65.3 -70.0 52 4.7 -65.4 74 31 352.3 352.3 297.1 352.4 0.02 40 150 14280 -67.9 -72.9 49 5.0 -67.9 85 28 353.1 353.1 297.3 353.2 0.01 41 130 15124 -74.5 -80.5 39 6.0 -74.5 81 23 356.0 356.0 297.9 356.1 0.00 42 113 15933 -76.3 -86.3 19 10.0 -76.3 269 13 367.2 367.2 300.1 367.3 0.00 43 101 16574 -79.3 -87.3 26 8.0 -79.3 228 27 373.4 373.4 301.2 373.5 0.00 44 100 16630 -79.7 -87.7 25 8.0 -79.7 225 28 373.7 373.7 301.2 373.7 0.00 45 98 16744 -80.3 -88.3 25 8.0 -80.3 225 28 374.7 374.7 301.4 374.7 0.00 46 96 16860 -80.5 -88.5 25 8.0 -80.5 223 25 376.6 376.6 301.7 376.6 0.00 47 90 17224 -80.3 -89.3 21 9.0 -80.3 217 15 384.0 384.0 302.9 384.0 0.00 48 85 17552 -73.7 -87.7 10 14.0 -73.7 280 6 403.7 403.7 305.7 403.7 0.00 49 70 18680 -75.7 -89.7 9 14.0 -75.7 320 13 422.4 422.4 308.0 422.4 0.00 50 67 18933 -76.9 -89.9 11 13.0 -76.9 7 18 425.2 425.2 308.3 425.2 0.00 51 52 20407 -73.3 -90.3 6 17.0 -73.4 246 34 465.5 465.5 312.3 465.5 0.00 52 50 20640 -67.9 -89.9 3 22.0 -68.1 255 30 483.5 483.5 313.7 483.5 0.00 53 44 21410 -68.1 -90.1 3 22.0 -68.3 258 31 501.0 501.0 315.0 501.0 0.00 54 36 22641 -60.1 -88.1 1 28.0 -60.9 226 21 551.3 551.3 318.2 551.3 0.00 55 30 23770 -63.9 -89.9 2 26.0 -64.5 95 7 570.4 570.4 319.2 570.5 0.00 56 26 24658 -58.7 -87.7 1 29.0 -59.9 6 0 609.0 609.0 321.0 609.1 0.01 TRP 98 16744 -80.3 -88.3 25 8.0 -80.3 225 28 374.7 374.7 301.4 374.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5776.00 m Freezing level: 578.80 mb = 4733.58 m = 15529.92 ft Wetbulb zero: 580.66 mb = 4699.23 m = 15417.24 ft Precipitable water: 2.22 inches Sfc-500 mean rel hum: 84.58 % Est. max temperature: 32.53 C = 90.55 F Sfc-Lift cond lev (LCL): 989.82 mb = 204.15 m = 669.77 ft T: 24.87 C 700-500 lapse rate: 4.97 C/km ThetaE index: 10.68 C Layer 925.0- 850.0 mb Conv cond level (CCL): 828.47 mb = 1754.79 m = 5757.12 ft Mean mixing ratio: 14.78 g/kg Conv temperature: 33.30 C = 91.94 F Cap Strength: 3.17 C Lifted Index: 0.34 C Risk: Showers probable Lifted Index @300 mb: 1.97 C Lifted Index @700 mb: -0.13 C Showalter Index: 0.40 C Risk: Thunderstorms probable Total Totals Index: 42.90 C Risk: None Vertical Totals Index: 22.90 C Cross Totals Index: 20.00 C K Index: 36.70 Risk: > 80 % chance of thunderstorms Sweat Index: 217.00 Risk: None Energy Index: -0.76 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 119.87 J/kg Max Up Vert Vel: 15.48 m/s Conv Inhibition (B-): 112.58 J/kg Cap Strength: 3.17 C Lift Cond Lev (LCL): 887.27 mb = 1162.93 m = 3815.33 ft Lev Free Conv (LFC): 702.27 mb = 3147.73 m = 10327.06 ft Equ Level (EL): 522.27 mb = 5544.79 m = 18191.35 ft B at Equ Level: 101.75 J/kg Max Parcel Lev (MPL): 282.27 mb = 10160.06 m = 33333.13 ft Wind level data Storm motion: 126 at 5 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 1004 85 70 4 -3.8 -1.4 | 354 5 0.5 -4.5 1 1000 114 70 4 -3.8 -1.4 | 354 5 0.5 -4.5 2 979 305 110 8 -7.5 2.7 | 84 3 -3.3 -0.4 3 945 610 50 5 -3.8 -3.2 | 356 6 0.4 -6.3 4 925 801 5 5 -0.4 -5.0 | 335 9 3.8 -8.1 5 913 914 345 7 1.8 -6.8 | 328 12 6.1 -9.9 6 850 1535 335 9 3.8 -8.2 | 324 14 8.0 -11.3 7 792 2134 300 3 2.6 -1.5 | 304 8 6.8 -4.6 8 764 2438 105 2 -1.9 0.5 | 318 3 2.3 -2.6 9 700 3175 160 7 -2.4 6.6 | 208 4 1.9 3.5 10 611 4267 160 6 -2.1 5.6 | 221 3 2.2 2.5 11 526 5486 95 11 -11.0 1.0 | 72 7 -6.7 -2.2 12 506 5791 60 10 -8.7 -5.0 | 29 9 -4.4 -8.1 13 500 5890 55 13 -10.6 -7.5 | 31 12 -6.4 -10.6 14 487 6096 55 13 -10.6 -7.5 | 31 12 -6.4 -10.6 15 416 7315 85 11 -11.0 -1.0 | 59 8 -6.7 -4.1 16 400 7610 60 12 -10.4 -6.0 | 34 11 -6.1 -9.1 17 399 7620 50 12 -9.2 -7.7 | 25 12 -4.9 -10.8 18 383 7925 75 16 -15.5 -4.1 | 57 13 -11.2 -7.2 19 368 8230 75 17 -16.4 -4.4 | 58 14 -12.2 -7.5 20 312 9449 105 27 -26.1 7.0 | 100 22 -21.8 3.9 21 300 9730 100 34 -33.5 5.9 | 95 29 -29.2 2.8 22 250 11000 85 37 -36.9 -3.2 | 79 33 -32.6 -6.3 23 200 12490 80 37 -36.4 -6.4 | 74 34 -32.2 -9.5 24 190 12802 80 39 -38.4 -6.8 | 74 36 -34.2 -9.9 25 164 13716 65 34 -30.8 -14.4 | 57 32 -26.6 -17.5 26 150 14280 85 28 -27.9 -2.4 | 77 24 -23.6 -5.5 27 134 14935 90 32 -32.0 0.0 | 84 28 -27.8 -3.1 28 127 15240 75 16 -15.5 -4.1 | 57 13 -11.2 -7.2 29 121 15545 60 10 -8.7 -5.0 | 29 9 -4.4 -8.1 30 114 15850 275 11 11.0 -1.0 | 285 16 15.2 -4.1 31 109 16154 250 21 19.7 7.2 | 260 24 24.0 4.1 32 100 16630 225 28 19.8 19.8 | 235 29 24.0 16.7 33 98 16744 225 28 19.8 19.8 | 235 29 24.0 16.7 34 98 16764 225 28 19.8 19.8 | 235 29 24.0 16.7 35 88 17374 215 11 6.3 9.0 | 241 12 10.6 5.9 36 83 17678 320 3 1.9 -2.3 | 311 8 6.2 -5.4 37 79 17983 25 11 -4.6 -10.0 | 2 13 -0.4 -13.1 38 75 18288 50 24 -18.4 -15.4 | 37 23 -14.1 -18.5 39 71 18593 50 34 -26.0 -21.9 | 41 33 -21.8 -25.0 40 70 18680 320 13 8.4 -10.0 | 316 18 12.6 -13.1 41 67 18898 20 17 -5.8 -16.0 | 5 19 -1.6 -19.1 42 64 19202 275 22 21.9 -1.9 | 281 27 26.2 -5.0 43 61 19507 260 25 24.6 4.3 | 268 29 28.9 1.2 44 58 19812 285 30 29.0 -7.8 | 288 35 33.2 -10.9 45 52 20422 245 34 30.8 14.4 | 252 37 35.1 11.3 46 50 20640 255 30 29.0 7.8 | 262 34 33.2 4.7 47 45 21336 255 32 30.9 8.3 | 262 36 35.2 5.2 48 38 22250 285 26 25.1 -6.7 | 289 31 29.4 -9.8 49 35 22860 195 18 4.7 17.4 | 212 17 8.9 14.3 50 33 23165 190 14 2.4 13.8 | 212 13 6.7 10.7 51 32 23470 215 12 6.9 9.8 | 239 13 11.1 6.7 52 30 23770 95 7 -7.0 0.6 | 48 4 -2.7 -2.5 53 26 24384 0 0 -0.0 -0.0 | 306 5 4.2 -3.1 54 22 24994 340 9 3.1 -8.5 | 328 14 7.3 -11.6 Wind Parameters Mean winds (0-6000m): 96.2 at 7.0 knts Storm direction: 126.2 at 5.3 knts Shear (0-3000m) pos: 1.6 neg: 1.2 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): -146.0 deg Storm rel helicity (0-3000m) pos: 10.9 neg: -33.5 tot: -22.6 m^2/s^2 ave: -7.5 10^-3 m/s^2 rel: -0.25 Storm rel vorticity (0-3000m) horiz: 6.9 stream: -1.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 873.04 Bulk Shear: 0.14 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 91 6 33 4| 0.0 1.8 1.8| 4.5 -6.6 -2.1 -4.2 -0.05| 11.8 -0.6 1000 48 6 2 7| 0.0 4.3 4.3| 4.5 -17.1 -12.6 -12.6 -0.27| 10.0 -2.7 1500 11 7 344 10| 0.0 3.4 3.4| 4.5 -21.4 -17.0 -11.3 -0.30| 7.4 -2.2 2000 357 7 335 11| 0.0 1.7 1.7| 4.5 -32.0 -27.5 -13.7 -0.36| 7.1 -2.6 2500 358 6 334 10| 1.3 1.4 2.7| 10.9 -32.6 -21.7 -8.7 -0.21| 7.3 -1.5 3000 8 6 338 9| 1.6 1.2 2.8| 10.9 -33.5 -22.6 -7.5 -0.25| 6.9 -1.7 4000 81 6 21 4| 1.2 0.9 2.1| 11.5 -33.5 -21.9 -5.5 -0.22| 5.4 -1.2 5000 121 6 94 1| 1.0 0.3 1.3| 11.6 -38.6 -27.0 -5.4 -0.32| 5.0 -1.6 6000 96 7 49 4| 0.8 1.2 2.1| 12.6 -55.7 -43.1 -7.2 -0.39| 5.4 -2.1 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250415.12.gif