UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042312.upa.cvt Date: 1200Z 23 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 23 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 1001 85 24.0 23.0 94 1.0 23.3 20 1 297.1 300.3 296.4 349.0 17.94 1 1000 92 24.2 23.3 95 0.9 23.6 145 4 297.4 300.7 296.7 350.4 18.30 2 996 127 25.2 24.6 96 0.6 24.8 147 4 298.7 302.3 298.1 356.8 19.92 3 963 425 23.4 23.2 99 0.2 23.3 117 5 299.8 303.2 297.7 355.2 18.91 4 941 629 24.8 21.4 81 3.4 22.3 49 6 303.2 306.4 297.6 354.5 17.30 5 935 685 24.8 19.8 74 5.0 21.2 48 7 303.7 306.6 296.7 350.5 15.74 6 925 780 24.2 20.6 80 3.6 21.6 45 8 304.1 307.2 297.5 353.9 16.74 7 850 1513 18.6 17.0 90 1.6 17.5 50 8 305.6 308.3 296.4 349.0 14.49 8 787 2172 13.8 13.8 100 0.0 13.8 39 9 307.3 309.7 295.7 345.6 12.71 9 773 2324 12.8 11.5 92 1.3 12.0 34 10 307.8 309.9 294.7 341.4 11.10 10 700 3157 9.6 4.9 72 4.7 6.8 60 9 313.1 314.6 293.7 337.3 7.78 11 697 3193 9.6 2.6 62 7.0 5.6 63 9 313.5 314.8 292.9 334.3 6.64 12 650 3769 6.6 4.3 85 2.3 5.2 109 8 316.4 318.0 294.7 341.7 8.04 13 636 3948 6.4 0.4 65 6.0 3.1 123 8 318.2 319.4 293.8 338.0 6.21 14 592 4532 2.8 -1.3 74 4.1 0.6 132 9 320.6 321.7 294.2 339.6 5.89 15 563 4937 0.2 -8.8 51 9.0 -3.9 102 11 322.2 322.8 292.7 333.7 3.49 16 556 5037 0.2 -21.8 17 22.0 -7.1 96 11 323.3 323.6 291.0 327.5 1.20 17 537 5315 -2.3 -7.3 69 5.0 -4.7 91 10 323.6 324.4 293.6 337.2 4.12 18 500 5880 -4.7 -17.7 35 13.0 -9.4 110 8 327.3 327.7 292.7 333.9 1.90 19 487 6086 -6.1 -25.1 21 19.0 -11.8 91 8 328.1 328.3 292.2 331.7 1.02 20 470 6363 -7.9 -10.2 84 2.3 -8.9 99 7 329.2 329.9 294.8 341.9 3.75 21 462 6496 -8.7 -12.4 75 3.7 -10.2 103 7 329.8 330.4 294.5 340.7 3.20 22 457 6581 -8.9 -19.9 41 11.0 -12.6 106 7 330.6 330.9 293.5 336.7 1.72 23 451 6683 -9.5 -17.5 52 8.0 -12.4 109 7 331.1 331.5 294.0 338.6 2.15 24 438 6908 -10.1 -28.1 21 18.0 -15.0 117 6 333.1 333.3 293.4 336.3 0.86 25 435 6961 -10.5 -28.5 21 18.0 -15.3 119 6 333.2 333.4 293.4 336.3 0.84 26 400 7600 -15.3 -24.3 46 9.0 -17.9 140 5 335.1 335.4 294.3 339.9 1.34 27 392 7752 -16.3 -24.3 50 8.0 -18.6 108 2 335.7 336.0 294.5 340.7 1.37 28 311 9452 -28.7 -42.7 25 14.0 -30.5 77 15 341.4 341.5 294.9 342.5 0.28 29 301 9686 -29.1 -51.1 10 22.0 -31.3 62 16 344.0 344.1 295.4 344.5 0.12 30 300 9710 -29.3 -51.3 10 22.0 -31.4 60 16 344.1 344.1 295.4 344.6 0.11 31 253 10908 -37.9 -62.9 6 25.0 -39.2 92 18 348.5 348.5 296.3 348.7 0.03 32 250 10990 -38.7 -62.7 6 24.0 -39.9 95 20 348.5 348.5 296.3 348.7 0.03 33 200 12480 -52.3 -64.3 22 12.0 -52.6 100 21 349.9 350.0 296.7 350.1 0.03 34 193 12709 -54.3 -64.3 28 10.0 -54.5 97 22 350.3 350.3 296.7 350.5 0.03 35 186 12943 -56.7 -60.4 63 3.7 -56.8 92 21 350.2 350.2 296.7 350.4 0.06 36 150 14270 -67.3 -74.3 36 7.0 -67.4 95 3 354.2 354.2 297.5 354.2 0.01 37 141 14640 -70.3 -77.3 35 7.0 -70.4 60 2 355.2 355.2 297.7 355.3 0.01 38 120 15588 -73.9 -85.9 14 12.0 -73.9 320 5 365.4 365.4 299.7 365.4 0.00 39 101 16574 -81.3 -87.3 35 6.0 -81.3 251 21 369.6 369.6 300.5 369.6 0.00 40 100 16630 -81.3 -87.3 35 6.0 -81.3 250 21 370.6 370.6 300.7 370.7 0.00 41 95 16918 -83.1 -89.1 34 6.0 -83.1 245 12 372.6 372.6 301.0 372.6 0.00 42 78 18023 -81.3 -89.3 25 8.0 -81.3 263 17 397.9 397.9 304.9 398.0 0.00 43 75 18246 -77.9 -88.9 15 11.0 -77.9 252 11 409.6 409.6 306.5 409.6 0.00 44 70 18640 -79.3 -89.3 18 10.0 -79.3 285 20 414.7 414.7 307.1 414.7 0.00 45 67 18890 -78.7 -89.7 15 11.0 -78.7 290 20 421.3 421.3 307.9 421.3 0.00 46 62 19345 -68.1 -89.1 3 21.0 -68.2 227 19 454.2 454.2 311.3 454.2 0.00 47 59 19643 -69.9 -89.9 4 20.0 -70.1 195 13 456.6 456.6 311.5 456.6 0.00 48 50 20640 -66.3 -89.3 3 23.0 -66.5 260 31 487.2 487.2 314.0 487.3 0.00 49 39 22139 -67.7 -90.7 2 23.0 -67.9 250 25 519.6 519.6 316.3 519.6 0.00 50 37 22460 -61.9 -88.9 2 27.0 -62.5 252 19 542.4 542.4 317.6 542.4 0.00 51 31 23564 -57.9 -87.9 1 30.0 -59.0 167 10 581.3 581.3 319.8 581.4 0.01 52 30 23770 -58.9 -87.9 1 29.0 -59.9 100 11 584.1 584.1 319.9 584.1 0.01 53 25 24925 -54.7 -86.7 1 32.0 -56.6 25 22 627.4 627.4 321.8 627.5 0.01 54 21 26033 -57.7 -87.7 1 30.0 -59.3 80 33 650.4 650.4 322.7 650.5 0.01 TRP 95 16918 -83.1 -89.1 34 6.0 -83.1 245 12 372.6 372.6 301.0 372.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5788.00 m Freezing level: 554.48 mb = 5059.70 m = 16599.85 ft Wetbulb zero: 588.11 mb = 4585.45 m = 15043.94 ft Precipitable water: 2.20 inches Sfc-500 mean rel hum: 75.53 % Est. max temperature: 32.55 C = 90.58 F Sfc-Lift cond lev (LCL): 986.92 mb = 208.24 m = 683.19 ft T: 24.71 C 700-500 lapse rate: 5.25 C/km ThetaE index: 19.62 C Layer 850.0- 650.0 mb Conv cond level (CCL): 878.71 mb = 1225.03 m = 4019.07 ft Mean mixing ratio: 17.84 g/kg Conv temperature: 31.96 C = 89.53 F Cap Strength: 2.39 C Lifted Index: -3.25 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.25 C Lifted Index @700 mb: -2.14 C Showalter Index: -1.38 C Risk: Thunderstorms probable Total Totals Index: 45.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.30 C Cross Totals Index: 21.70 C K Index: 35.60 Risk: > 80 % chance of thunderstorms Sweat Index: 228.00 Risk: None Energy Index: -2.96 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1377.76 J/kg Max Up Vert Vel: 52.49 m/s Conv Inhibition (B-): 38.31 J/kg Cap Strength: 2.39 C Lift Cond Lev (LCL): 922.47 mb = 803.75 m = 2636.93 ft Lev Free Conv (LFC): 847.47 mb = 1538.50 m = 5047.52 ft Equ Level (EL): 147.47 mb = 14371.67 m = 47150.58 ft B at Equ Level: 1375.32 J/kg Max Parcel Lev (MPL): 77.47 mb = 18061.96 m = 59257.69 ft Wind level data Storm motion: 108 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 1001 85 20 1 -0.3 -0.9 | 297 7 5.9 -3.0 1 1000 92 145 4 -2.3 3.3 | 252 4 4.0 1.3 2 976 305 160 5 -1.7 4.7 | 239 5 4.5 2.7 3 943 610 50 6 -4.6 -3.9 | 344 6 1.7 -5.9 4 925 780 45 8 -5.7 -5.7 | 356 8 0.6 -7.7 5 911 914 45 10 -7.1 -7.1 | 5 9 -0.8 -9.1 6 850 1513 50 8 -6.1 -5.1 | 359 7 0.1 -7.2 7 790 2134 40 9 -5.8 -6.9 | 357 9 0.5 -8.9 8 762 2438 30 10 -5.0 -8.7 | 353 11 1.2 -10.7 9 735 2743 50 10 -7.7 -6.4 | 9 9 -1.4 -8.4 10 700 3157 60 9 -7.8 -4.5 | 13 7 -1.5 -6.5 11 610 4267 150 7 -3.5 6.1 | 214 5 2.7 4.1 12 566 4877 105 11 -10.6 2.8 | 101 4 -4.4 0.8 13 545 5182 85 10 -10.0 -0.9 | 52 5 -3.7 -2.9 14 506 5791 115 12 -10.9 5.1 | 123 6 -4.6 3.1 15 500 5880 110 8 -7.5 2.7 | 120 1 -1.3 0.7 16 486 6096 90 8 -8.0 0.0 | 41 3 -1.8 -2.0 17 400 7600 140 5 -3.2 3.8 | 239 4 3.0 1.8 18 399 7620 95 1 -1.0 0.1 | 290 6 5.3 -1.9 19 367 8230 155 8 -3.4 7.3 | 209 6 2.9 5.2 20 300 9710 60 16 -13.9 -8.0 | 37 13 -7.6 -10.0 21 298 9754 60 16 -13.9 -8.0 | 37 13 -7.6 -10.0 22 262 10668 65 17 -15.4 -7.2 | 45 13 -9.2 -9.2 23 251 10973 100 18 -17.7 3.1 | 96 12 -11.5 1.1 24 250 10990 95 20 -19.9 1.7 | 89 14 -13.7 -0.3 25 200 12480 100 21 -20.7 3.6 | 96 15 -14.4 1.6 26 190 12802 95 22 -21.9 1.9 | 90 16 -15.7 -0.1 27 172 13411 80 19 -18.7 -3.3 | 67 14 -12.5 -5.3 28 156 14021 95 13 -13.0 1.1 | 83 7 -6.7 -0.9 29 150 14270 95 3 -3.0 0.3 | 298 4 3.3 -1.8 30 127 15240 0 0 -0.0 -0.0 | 288 7 6.2 -2.0 31 114 15850 285 10 9.7 -2.6 | 286 17 15.9 -4.6 32 109 16154 260 20 19.7 3.5 | 267 26 25.9 1.5 33 100 16630 250 21 19.7 7.2 | 259 26 26.0 5.2 34 98 16764 260 26 25.6 4.5 | 266 32 31.9 2.5 35 95 16918 245 12 10.9 5.1 | 260 17 17.1 3.1 36 92 17069 245 12 10.9 5.1 | 260 17 17.1 3.1 37 83 17678 280 12 11.8 -2.1 | 283 19 18.1 -4.1 38 79 17983 265 18 17.9 1.6 | 271 24 24.2 -0.4 39 75 18288 250 10 9.4 3.4 | 265 16 15.6 1.4 40 70 18640 285 20 19.3 -5.2 | 286 27 25.6 -7.2 41 67 18898 290 20 18.8 -6.8 | 289 27 25.0 -8.9 42 64 19202 245 24 21.8 10.1 | 254 29 28.0 8.1 43 60 19507 210 15 7.5 13.0 | 231 18 13.7 11.0 44 57 19812 180 11 0.0 11.0 | 215 11 6.2 9.0 45 55 20117 250 12 11.3 4.1 | 263 18 17.5 2.1 46 52 20422 265 27 26.9 2.4 | 269 33 33.1 0.3 47 50 20640 260 31 30.5 5.4 | 265 37 36.8 3.4 48 47 21031 255 32 30.9 8.3 | 260 38 37.2 6.3 49 38 22250 250 24 22.6 8.2 | 258 29 28.8 6.2 50 35 22860 255 12 11.6 3.1 | 266 18 17.8 1.1 51 33 23165 210 12 6.0 10.4 | 236 15 12.2 8.4 52 32 23470 200 10 3.4 9.4 | 233 12 9.7 7.4 53 30 23770 100 11 -10.8 1.9 | 89 5 -4.6 -0.1 54 28 24079 115 12 -10.9 5.1 | 123 6 -4.6 3.1 55 26 24384 10 19 -3.3 -18.7 | 352 21 2.9 -20.7 56 22 24994 75 33 -31.9 -8.5 | 68 28 -25.6 -10.6 57 17 26213 100 33 -32.5 5.7 | 98 27 -26.3 3.7 58 15 26518 80 46 -45.3 -8.0 | 76 40 -39.1 -10.0 Wind Parameters Mean winds (0-6000m): 77.8 at 8.8 knts Storm direction: 107.8 at 6.6 knts Shear (0-3000m) pos: 1.0 neg: 1.1 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): 76.2 deg Storm rel helicity (0-3000m) pos: 13.8 neg: -10.5 tot: 3.3 m^2/s^2 ave: 1.1 10^-3 m/s^2 rel: 0.09 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 0.4 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 227.95 Bulk Shear: 6.04 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 ------------------------------------------------------------------------------- 500 128 5 245 3| 5.3 0.0 5.3| 1.6 -6.9 -5.3 -10.6 -0.07| 16.5 -1.2 1000 67 7 359 5| 2.7 2.0 4.7| 6.3 -7.2 -0.9 -0.9 0.05| 10.8 0.5 1500 58 7 360 6| 1.4 1.3 2.7| 6.3 -8.6 -2.2 -1.5 0.02| 7.7 0.1 2000 53 8 359 7| 1.1 1.3 2.4| 6.3 -9.1 -2.8 -1.4 0.01| 6.2 0.0 2500 49 8 358 7| 0.8 1.3 2.1| 9.5 -10.5 -0.9 -0.4 0.03| 5.6 0.2 3000 49 8 0 7| 1.0 1.1 2.0| 13.8 -10.5 3.3 1.1 0.09| 5.2 0.4 4000 58 8 7 6| 1.6 0.8 2.4| 19.6 -10.5 9.2 2.3 0.25| 5.4 1.3 5000 71 8 20 5| 1.3 1.3 2.6| 20.6 -21.1 -0.5 -0.1 0.02| 5.6 0.1 6000 78 9 31 4| 1.3 1.2 2.5| 27.9 -23.7 4.2 0.7 0.05| 5.8 0.3 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250423.12.gif