UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025043012.upa.cvt Date: 1200Z 30 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 30 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 22.0 21.0 94 1.0 21.3 110 2 295.1 297.9 294.4 340.5 15.83 1 1000 93 22.4 21.4 94 1.0 21.7 325 2 295.5 298.5 294.8 342.2 16.25 2 995 137 23.8 23.0 95 0.8 23.2 305 2 297.4 300.6 296.5 349.7 18.06 3 946 580 22.6 20.7 89 1.9 21.3 176 8 300.5 303.5 296.4 348.8 16.46 4 925 776 23.0 16.0 65 7.0 18.2 200 5 302.8 305.1 294.3 339.7 12.46 5 920 823 23.0 15.0 61 8.0 17.7 207 5 303.3 305.5 293.9 338.1 11.73 6 850 1510 19.2 14.4 74 4.8 16.0 110 3 306.3 308.5 295.0 343.0 12.23 7 729 2815 11.6 8.7 82 2.9 9.8 66 15 311.7 313.5 294.7 341.7 9.74 8 700 3155 10.2 5.6 73 4.6 7.5 75 16 313.8 315.3 294.1 339.3 8.18 9 633 3989 6.6 1.8 71 4.8 3.9 85 12 318.8 320.2 294.5 340.9 6.90 10 575 4772 0.6 -1.0 89 1.6 -0.3 82 22 320.7 321.9 294.5 340.7 6.20 11 542 5247 -0.9 -3.9 80 3.0 -2.4 77 23 324.4 325.4 294.7 341.8 5.30 12 523 5533 -1.9 -11.9 46 10.0 -6.2 86 21 326.5 327.1 293.4 336.4 2.94 13 519 5594 -2.3 -11.3 50 9.0 -6.2 88 20 326.7 327.3 293.6 337.2 3.11 14 516 5640 -2.5 -21.5 22 19.0 -8.9 90 20 327.0 327.3 292.2 331.7 1.33 15 500 5890 -4.3 -14.3 46 10.0 -8.3 85 18 327.8 328.3 293.4 336.5 2.53 16 498 5922 -4.5 -12.5 54 8.0 -7.8 84 18 327.9 328.5 293.8 337.9 2.94 17 494 5985 -4.9 -15.9 42 11.0 -9.1 83 17 328.2 328.6 293.3 335.9 2.24 18 488 6081 -5.7 -9.6 74 3.9 -7.4 80 16 328.4 329.1 294.6 341.1 3.79 19 465 6458 -7.9 -10.9 79 3.0 -9.2 95 6 330.2 330.9 294.9 342.4 3.58 20 448 6746 -9.3 -13.6 71 4.3 -11.1 92 9 332.0 332.6 294.8 342.3 2.99 21 418 7277 -14.3 -15.4 91 1.1 -14.7 77 18 332.2 332.8 294.7 341.8 2.76 22 400 7610 -15.7 -19.0 76 3.3 -16.8 75 10 334.6 335.0 294.8 342.1 2.13 23 387 7858 -16.1 -23.1 55 7.0 -18.2 85 10 337.2 337.6 295.0 342.8 1.54 24 340 8818 -23.5 -26.3 78 2.8 -24.2 87 7 339.9 340.2 295.4 344.7 1.31 25 313 9417 -27.5 -33.5 57 6.0 -28.6 72 6 342.4 342.6 295.6 345.2 0.72 26 300 9720 -30.1 -35.0 62 4.9 -30.9 65 5 343.0 343.1 295.6 345.5 0.65 27 277 10282 -34.9 -39.0 66 4.1 -35.4 81 7 343.9 344.0 295.7 345.8 0.47 28 254 10882 -39.5 -47.5 42 8.0 -40.1 97 10 345.8 345.8 295.9 346.6 0.21 29 250 10990 -40.5 -47.5 47 7.0 -41.1 130 6 345.9 345.9 295.9 346.7 0.21 30 233 11466 -44.9 -48.1 70 3.2 -45.1 126 2 346.2 346.3 296.0 347.1 0.21 31 204 12342 -52.5 -58.5 48 6.0 -52.7 129 3 347.7 347.7 296.2 348.0 0.07 32 200 12470 -53.5 -61.5 37 8.0 -53.7 130 3 348.0 348.1 296.3 348.3 0.05 33 189 12831 -56.3 -69.3 18 13.0 -56.5 127 5 349.2 349.2 296.5 349.3 0.02 34 170 13495 -62.3 -65.5 65 3.2 -62.3 91 15 350.0 350.0 296.7 350.1 0.03 35 166 13641 -63.1 -67.0 59 3.9 -63.1 94 21 351.1 351.1 296.9 351.2 0.03 36 163 13753 -63.5 -78.5 11 15.0 -63.6 94 24 352.2 352.2 297.1 352.2 0.01 37 150 14260 -66.3 -80.3 12 14.0 -66.4 75 20 355.9 355.9 297.9 355.9 0.00 38 128 15200 -74.3 -81.3 33 7.0 -74.3 66 17 358.0 358.0 298.3 358.0 0.00 39 100 16610 -81.1 -88.1 30 7.0 -81.1 240 9 371.0 371.0 300.8 371.0 0.00 40 96 16839 -82.9 -88.9 35 6.0 -82.9 185 10 371.9 371.9 300.9 371.9 0.00 41 93 17017 -79.7 -87.7 25 8.0 -79.7 149 16 381.6 381.6 302.5 381.6 0.00 42 89 17266 -81.7 -89.7 24 8.0 -81.7 137 19 382.4 382.4 302.6 382.4 0.00 43 85 17526 -78.3 -88.3 18 10.0 -78.3 143 17 394.4 394.4 304.4 394.4 0.00 44 70 18650 -73.1 -90.1 6 17.0 -73.2 295 40 428.0 428.0 308.6 428.0 0.00 45 69 18734 -72.7 -90.7 5 18.0 -72.8 292 39 430.6 430.6 308.9 430.6 0.00 46 65 19081 -74.7 -90.7 7 16.0 -74.7 290 35 433.7 433.7 309.2 433.7 0.00 47 50 20620 -69.5 -91.5 3 22.0 -69.6 285 36 479.7 479.7 313.4 479.7 0.00 48 49 20741 -69.3 -91.3 3 22.0 -69.5 283 37 483.0 483.0 313.7 483.0 0.00 49 47 20994 -65.5 -91.5 2 26.0 -65.8 279 38 497.9 497.9 314.8 497.9 0.00 50 32 23364 -61.7 -90.7 1 29.0 -62.4 240 15 565.9 565.9 318.9 565.9 0.00 51 30 23770 -56.3 -88.3 1 32.0 -57.7 140 16 591.2 591.2 320.2 591.2 0.01 52 28 24207 -58.7 -88.7 1 30.0 -59.8 134 16 596.3 596.3 320.5 596.3 0.01 53 24 25189 -54.5 -87.5 1 33.0 -56.5 91 37 635.3 635.3 322.1 635.4 0.01 54 22 25745 -56.1 -88.1 1 32.0 -57.9 112 42 646.6 646.6 322.6 646.6 0.01 55 20 26360 -51.1 -86.1 1 35.0 -54.3 80 42 679.8 679.8 323.7 679.8 0.01 56 17 27409 -54.3 -87.3 1 33.0 -57.0 103 40 701.8 701.8 324.5 701.9 0.01 57 16 27801 -50.9 -87.9 0 37.0 -54.7 90 62 725.2 725.2 325.2 725.3 0.01 58 16 27801 -50.9 -87.9 0 37.0 -54.7 90 62 725.2 725.2 325.2 725.3 0.01 TRP 96 16839 -82.9 -88.9 35 6.0 -82.9 185 10 371.9 371.9 300.9 371.9 0.00 WND 16 27801 -50.9 -87.9 0 37.0 -54.7 90 62 725.2 725.2 325.2 725.3 0.01 Sounding variables and indices 1000-500 mb thick: 5797.00 m Freezing level: 561.80 mb = 4962.31 m = 16280.36 ft Wetbulb zero: 578.81 mb = 4718.56 m = 15480.65 ft Precipitable water: 2.13 inches Sfc-500 mean rel hum: 74.35 % Est. max temperature: 33.15 C = 91.68 F Sfc-Lift cond lev (LCL): 986.80 mb = 209.48 m = 687.27 ft T: 23.60 C 700-500 lapse rate: 5.30 C/km ThetaE index: 11.57 C Layer 946.0- 850.0 mb Conv cond level (CCL): 816.68 mb = 1849.97 m = 6069.40 ft Mean mixing ratio: 15.30 g/kg Conv temperature: 34.62 C = 94.31 F Cap Strength: 3.32 C Lifted Index: 0.31 C Risk: Showers probable Lifted Index @300 mb: 0.82 C Lifted Index @700 mb: 0.92 C Showalter Index: 1.31 C Risk: Showers probable Total Totals Index: 42.20 C Risk: None Vertical Totals Index: 23.50 C Cross Totals Index: 18.70 C K Index: 33.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 196.80 Risk: None Energy Index: -1.24 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 60.47 J/kg Max Up Vert Vel: 11.00 m/s Conv Inhibition (B-): 202.38 J/kg Cap Strength: 3.32 C Lift Cond Lev (LCL): 904.61 mb = 969.69 m = 3181.37 ft Lev Free Conv (LFC): 589.61 mb = 4567.87 m = 14986.27 ft Equ Level (EL): 539.61 mb = 5282.55 m = 17330.99 ft B at Equ Level: 38.79 J/kg Max Parcel Lev (MPL): 309.61 mb = 9494.61 m = 31149.91 ft Wind level data Storm motion: 112 at 10 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 85 110 2 -1.9 0.7 | 293 8 7.0 -3.0 1 1000 93 325 2 1.1 -1.6 | 298 11 10.0 -5.3 2 976 305 230 3 2.3 1.9 | 279 11 11.2 -1.7 3 943 610 170 9 -1.6 8.9 | 235 9 7.3 5.2 4 925 776 200 5 1.7 4.7 | 264 11 10.6 1.0 5 910 914 220 5 3.2 3.8 | 269 12 12.1 0.2 6 850 1510 110 3 -2.8 1.0 | 293 7 6.1 -2.6 7 790 2134 45 8 -5.7 -5.7 | 341 10 3.2 -9.3 8 762 2438 75 9 -8.7 -2.3 | 358 6 0.2 -6.0 9 735 2743 60 15 -13.0 -7.5 | 20 12 -4.1 -11.2 10 709 3048 85 17 -16.9 -1.5 | 57 10 -8.0 -5.1 11 700 3155 75 16 -15.5 -4.1 | 40 10 -6.6 -7.8 12 683 3353 65 13 -11.8 -5.5 | 18 10 -2.9 -9.2 13 634 3962 85 12 -12.0 -1.0 | 33 6 -3.1 -4.7 14 610 4267 90 20 -20.0 0.0 | 72 12 -11.1 -3.7 15 546 5182 75 23 -22.2 -6.0 | 54 16 -13.3 -9.6 16 506 5791 95 19 -18.9 1.7 | 79 10 -10.0 -2.0 17 500 5890 85 18 -17.9 -1.6 | 60 10 -9.0 -5.2 18 487 6096 80 16 -15.8 -2.8 | 47 9 -6.9 -6.4 19 468 6401 95 6 -6.0 0.5 | 317 4 2.9 -3.1 20 432 7010 90 11 -11.0 0.0 | 30 4 -2.1 -3.7 21 416 7315 75 19 -18.4 -4.9 | 48 13 -9.5 -8.6 22 400 7610 75 10 -9.7 -2.6 | 7 6 -0.8 -6.3 23 368 8230 100 9 -8.9 1.6 | 359 2 0.0 -2.1 24 300 9720 65 5 -4.5 -2.1 | 323 7 4.4 -5.8 25 251 10973 100 10 -9.8 1.7 | 26 2 -1.0 -1.9 26 250 10990 130 6 -4.6 3.9 | 267 4 4.3 0.2 27 229 11582 125 1 -0.8 0.6 | 291 9 8.1 -3.1 28 200 12470 130 3 -2.3 1.9 | 285 7 6.6 -1.7 29 181 13106 125 6 -4.9 3.4 | 273 4 4.0 -0.2 30 172 13411 90 12 -12.0 0.0 | 40 5 -3.1 -3.7 31 164 13716 95 24 -23.9 2.1 | 84 15 -15.0 -1.6 32 150 14260 75 20 -19.3 -5.2 | 50 14 -10.4 -8.8 33 134 14935 60 19 -16.5 -9.5 | 30 15 -7.6 -13.2 34 120 15545 75 15 -14.5 -3.9 | 37 9 -5.6 -7.5 35 114 15850 10 12 -2.1 -11.8 | 336 17 6.8 -15.5 36 108 16154 355 12 1.0 -12.0 | 328 19 9.9 -15.6 37 103 16459 15 10 -2.6 -9.7 | 335 15 6.3 -13.3 38 100 16610 240 9 7.8 4.5 | 267 17 16.7 0.8 39 97 16764 245 9 8.2 3.8 | 270 17 17.0 0.1 40 96 16839 185 10 0.9 10.0 | 237 12 9.8 6.3 41 92 17069 140 18 -11.6 13.8 | 165 10 -2.7 10.1 42 87 17374 135 20 -14.1 14.1 | 153 12 -5.3 10.5 43 83 17678 150 15 -7.5 13.0 | 188 9 1.4 9.3 44 79 17983 225 24 17.0 17.0 | 243 29 25.9 13.3 45 75 18288 240 13 11.3 6.5 | 262 20 20.1 2.8 46 71 18593 275 24 23.9 -2.1 | 280 33 32.8 -5.8 47 70 18650 295 40 36.3 -16.9 | 294 50 45.1 -20.6 48 67 18898 285 37 35.7 -9.6 | 287 47 44.6 -13.2 49 60 19507 300 29 25.1 -14.5 | 298 39 34.0 -18.2 50 57 19812 310 45 34.5 -28.9 | 307 54 43.4 -32.6 51 52 20422 295 37 33.5 -15.6 | 294 47 42.4 -19.3 52 50 20620 285 36 34.8 -9.3 | 287 46 43.7 -13.0 53 40 21946 265 42 41.8 3.7 | 270 51 50.7 -0.0 54 37 22555 245 25 22.7 10.6 | 258 32 31.5 6.9 55 35 22860 265 18 17.9 1.6 | 274 27 26.8 -2.1 56 33 23165 240 20 17.3 10.0 | 256 27 26.2 6.3 57 31 23470 240 12 10.4 6.0 | 263 19 19.3 2.3 58 30 23770 140 16 -10.3 12.3 | 171 9 -1.4 8.6 59 30 23774 185 3 0.3 3.0 | 274 9 9.2 -0.7 60 29 24079 140 10 -6.4 7.7 | 212 5 2.5 4.0 61 27 24384 125 24 -19.7 13.8 | 133 15 -10.8 10.1 62 26 24689 95 37 -36.9 3.2 | 89 28 -28.0 -0.4 63 24 25298 90 37 -37.0 0.0 | 83 28 -28.1 -3.7 64 23 25603 120 37 -32.0 18.5 | 123 27 -23.2 14.8 65 20 26213 85 57 -56.8 -5.0 | 80 49 -47.9 -8.6 66 20 26360 80 42 -41.4 -7.3 | 71 34 -32.5 -11.0 67 18 27127 75 39 -37.7 -10.1 | 64 32 -28.8 -13.8 68 17 27432 105 40 -38.6 10.4 | 103 30 -29.7 6.7 69 16 27801 90 62 -62.0 0.0 | 86 53 -53.1 -3.7 70 15 28042 90 62 -62.0 0.0 | 86 53 -53.1 -3.7 Wind Parameters Mean winds (0-6000m): 82.4 at 12.8 knts Storm direction: 112.4 at 9.6 knts Shear (0-3000m) pos: 1.7 neg: 1.9 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 118.1 deg Storm rel helicity (0-3000m) pos: 56.5 neg: -31.0 tot: 25.5 m^2/s^2 ave: 8.5 10^-3 m/s^2 rel: 0.28 Storm rel vorticity (0-3000m) horiz: 8.8 stream: 2.4 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.93 Bulk Shear: 31.27 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 ------------------------------------------------------------------------------- 500 201 4 268 10| 8.1 0.0 8.1| 0.0 -29.7 -29.7 -59.4 -0.70| 15.2-10.6 1000 196 5 263 10| 2.3 0.0 2.3| 13.8 -31.0 -17.2 -17.2 -0.24| 11.8 -2.9 1500 188 5 265 10| 1.5 1.9 3.4| 21.0 -31.0 -10.0 -6.7 -0.06| 9.9 -0.6 2000 156 5 264 7| 1.2 2.9 4.1| 28.7 -31.0 -2.3 -1.1 0.08| 9.1 0.8 2500 106 6 301 4| 1.0 2.3 3.3| 37.9 -31.0 6.9 2.7 0.18| 8.7 1.5 3000 86 7 339 4| 1.7 1.9 3.7| 56.5 -31.0 25.5 8.5 0.28| 8.8 2.4 4000 80 9 358 5| 1.9 1.4 3.2| 64.7 -45.6 19.1 4.8 0.20| 8.2 1.7 5000 82 11 24 6| 1.5 1.8 3.3| 71.6 -59.2 12.4 2.5 0.16| 7.7 1.2 6000 82 13 35 7| 1.4 1.5 3.0| 91.0 -75.7 15.3 2.6 0.13| 7.6 1.0 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250430.12.gif