UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042900.upa.cvt Date: 0000Z 29 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 29 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 ------------------------------------------------------------------------------- 0 1000 74 230 2 SFC 999 85 29.0 24.0 74 5.0 25.3 230 2 302.2 305.8 298.5 358.9 19.13 2 970 347 28.2 19.2 58 9.0 21.8 222 5 304.0 306.7 296.0 347.4 14.59 3 925 766 24.2 20.5 80 3.7 21.5 230 1 304.1 307.1 297.4 353.6 16.63 4 883 1172 20.8 18.9 89 1.9 19.5 222 2 304.6 307.5 297.0 351.6 15.75 5 850 1502 19.2 15.7 80 3.5 16.8 135 4 306.3 308.7 295.8 346.2 13.32 6 726 2842 12.2 6.2 67 6.0 8.6 112 11 312.7 314.3 293.9 338.2 8.22 7 700 3147 10.4 5.8 73 4.6 7.6 85 13 314.0 315.6 294.3 339.9 8.29 8 611 4272 4.4 1.3 80 3.1 2.7 80 16 319.5 320.9 294.7 341.6 6.90 9 570 4837 1.6 -2.7 73 4.3 -0.7 75 18 322.7 323.8 294.5 340.6 5.51 10 500 5890 -2.3 -12.3 46 10.0 -6.6 80 14 330.2 330.8 294.4 340.4 2.98 11 498 5922 -2.5 -12.5 46 10.0 -6.8 78 14 330.4 331.0 294.4 340.5 2.94 12 416 7321 -11.1 -21.1 43 10.0 -14.4 90 20 336.8 337.1 295.0 342.9 1.71 13 400 7620 -13.7 -21.7 51 8.0 -16.3 95 22 337.2 337.5 295.1 343.3 1.69 14 376 8086 -17.1 -25.1 50 8.0 -19.3 90 25 338.7 339.0 295.2 343.6 1.32 15 349 8640 -20.3 -36.3 23 16.0 -23.4 86 20 341.7 341.8 295.2 343.6 0.49 16 301 9716 -28.3 -48.3 13 20.0 -30.5 80 17 345.2 345.2 295.7 345.8 0.16 17 300 9740 -28.5 -47.5 14 19.0 -30.6 80 17 345.2 345.3 295.7 345.9 0.17 18 263 10670 -35.7 -59.7 7 24.0 -37.2 73 12 347.9 347.9 296.2 348.1 0.05 19 250 11020 -38.9 -55.9 15 17.0 -39.9 75 8 348.2 348.2 296.3 348.6 0.08 20 224 11764 -45.9 -61.9 15 16.0 -46.5 62 7 348.6 348.6 296.4 348.8 0.04 21 200 12510 -52.3 -66.3 17 14.0 -52.6 105 13 349.9 350.0 296.7 350.1 0.03 22 187 12940 -55.7 -70.7 14 15.0 -55.9 105 14 351.2 351.3 296.9 351.3 0.01 23 179 13215 -58.3 -66.3 35 8.0 -58.5 106 15 351.4 351.4 297.0 351.5 0.03 24 171 13500 -60.9 -70.9 26 10.0 -61.0 107 17 351.7 351.7 297.0 351.8 0.02 25 157 14024 -64.9 -74.9 24 10.0 -65.0 109 19 353.6 353.6 297.4 353.7 0.01 26 150 14300 -67.5 -73.5 42 6.0 -67.5 110 21 353.8 353.8 297.4 353.9 0.01 27 125 15373 -77.1 -80.0 63 2.9 -77.1 116 25 355.3 355.3 297.8 355.4 0.01 28 108 16200 -83.3 -87.7 46 4.4 -83.3 105 35 358.8 358.8 298.5 358.8 0.00 29 101 16574 -81.7 -86.7 42 5.0 -81.7 92 45 368.8 368.8 300.4 368.8 0.00 30 100 16630 -81.5 -87.5 35 6.0 -81.5 90 47 370.3 370.3 300.6 370.3 0.00 31 91 17168 -75.3 -89.3 9 14.0 -75.3 97 25 392.7 392.7 304.2 392.7 0.00 32 82 17768 -77.9 -88.9 15 11.0 -77.9 214 11 399.2 399.2 305.1 399.3 0.00 33 76 18206 -75.1 -89.1 10 14.0 -75.2 269 18 413.9 413.9 307.0 413.9 0.00 34 70 18680 -78.3 -89.3 15 11.0 -78.3 255 35 416.9 416.9 307.3 416.9 0.00 35 69 18762 -78.5 -89.5 15 11.0 -78.6 255 35 418.2 418.2 307.5 418.2 0.00 36 62 19375 -76.7 -90.7 9 14.0 -76.7 251 20 435.1 435.1 309.4 435.1 0.00 37 57 19867 -70.3 -91.3 3 21.0 -70.4 272 26 460.3 460.3 311.8 460.3 0.00 38 50 20650 -68.1 -90.1 3 22.0 -68.3 260 26 483.0 483.0 313.7 483.0 0.00 39 41 21845 -67.3 -91.3 2 24.0 -67.6 291 26 513.2 513.2 315.8 513.2 0.00 40 37 22475 -60.5 -89.5 1 29.0 -61.2 290 18 546.0 546.0 317.9 546.0 0.00 41 33 23185 -62.1 -90.1 1 28.0 -62.7 288 23 559.9 559.9 318.6 559.9 0.00 42 30 23780 -58.3 -88.3 1 30.0 -59.4 150 3 585.7 585.7 319.9 585.7 0.01 43 24 25192 -56.5 -87.5 1 31.0 -58.2 105 33 629.5 629.5 321.9 629.6 0.01 44 23 25464 -53.5 -86.5 1 33.0 -55.8 98 35 646.1 646.1 322.5 646.1 0.01 45 20 26360 -55.3 -86.3 1 31.0 -57.5 100 32 666.9 666.9 323.3 667.0 0.01 46 19 26687 -55.5 -86.5 1 31.0 -57.7 109 36 676.1 676.1 323.6 676.2 0.01 47 18 27034 -53.3 -87.3 1 34.0 -56.1 104 36 693.6 693.6 324.2 693.7 0.01 TRP 108 16200 -83.3 -87.7 46 4.4 -83.3 105 35 358.8 358.8 298.5 358.8 0.00 WND Sounding variables and indices 1000-500 mb thick: 5816.00 m Freezing level: 541.28 mb = 5269.10 m = 17286.85 ft Wetbulb zero: 578.39 mb = 4718.26 m = 15479.68 ft Precipitable water: 2.14 inches Sfc-500 mean rel hum: 72.33 % Est. max temperature: 33.07 C = 91.53 F Sfc-Lift cond lev (LCL): 929.54 mb = 722.82 m = 2371.43 ft T: 24.61 C 700-500 lapse rate: 4.63 C/km ThetaE index: 15.35 C Layer 883.0- 700.0 mb Conv cond level (CCL): 835.47 mb = 1648.52 m = 5408.48 ft Mean mixing ratio: 16.16 g/kg Conv temperature: 33.73 C = 92.71 F Cap Strength: 1.18 C Lifted Index: -0.03 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.16 C Lifted Index @700 mb: -0.69 C Showalter Index: 2.02 C Risk: Showers probable Total Totals Index: 39.50 C Risk: None Vertical Totals Index: 21.50 C Cross Totals Index: 18.00 C K Index: 32.60 Risk: 60-80 % chance of thunderstorms Sweat Index: 210.40 Risk: None Energy Index: -1.13 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 394.34 J/kg Max Up Vert Vel: 28.08 m/s Conv Inhibition (B-): 38.05 J/kg Cap Strength: 1.18 C Lift Cond Lev (LCL): 873.89 mb = 1261.86 m = 4139.90 ft Lev Free Conv (LFC): 748.89 mb = 2578.10 m = 8458.23 ft Equ Level (EL): 168.89 mb = 13576.34 m = 44541.26 ft B at Equ Level: 389.89 J/kg Max Parcel Lev (MPL): 98.89 mb = 16693.47 m = 54767.93 ft Wind level data Storm motion: 119 at 8 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 ---------------------------------------------------------- 0 999 85 230 2 1.5 1.3 | 286 9 8.4 -2.4 1 974 305 225 5 3.5 3.5 | 271 10 10.4 -0.2 2 941 610 205 3 1.3 2.7 | 277 8 8.1 -1.0 3 925 766 230 1 0.8 0.6 | 292 8 7.6 -3.1 4 909 914 290 1 0.9 -0.3 | 298 9 7.8 -4.1 5 850 1502 135 4 -2.8 2.8 | 283 4 4.0 -0.9 6 789 2134 105 6 -5.8 1.6 | 334 2 1.0 -2.2 7 761 2438 100 7 -6.9 1.2 | 1 3 -0.0 -2.5 8 734 2743 120 11 -9.5 5.5 | 124 3 -2.7 1.8 9 700 3147 85 13 -13.0 -1.1 | 51 8 -6.1 -4.9 10 683 3353 80 13 -12.8 -2.3 | 45 8 -6.0 -6.0 11 633 3962 75 11 -10.6 -2.8 | 30 8 -3.8 -6.6 12 610 4267 80 16 -15.8 -2.8 | 54 11 -8.9 -6.5 13 566 4877 75 18 -17.4 -4.7 | 52 13 -10.5 -8.4 14 506 5791 95 17 -16.9 1.5 | 77 10 -10.1 -2.2 15 500 5890 80 14 -13.8 -2.4 | 48 9 -6.9 -6.2 16 487 6096 70 14 -13.2 -4.8 | 37 11 -6.3 -8.5 17 400 7620 95 22 -21.9 1.9 | 83 15 -15.1 -1.8 18 400 7620 100 24 -23.6 4.2 | 92 17 -16.8 0.4 19 384 7925 90 26 -26.0 0.0 | 79 20 -19.2 -3.7 20 368 8230 90 24 -24.0 0.0 | 78 18 -17.2 -3.7 21 353 8534 85 20 -19.9 -1.7 | 67 14 -13.1 -5.5 22 325 9144 90 17 -17.0 0.0 | 70 11 -10.2 -3.7 23 300 9740 80 17 -16.7 -3.0 | 56 12 -9.9 -6.7 24 252 10973 70 10 -9.4 -3.4 | 20 8 -2.6 -7.1 25 250 11020 75 8 -7.7 -2.1 | 9 6 -0.9 -5.8 26 220 11887 60 7 -6.1 -3.5 | 354 7 0.8 -7.2 27 210 12192 90 10 -10.0 0.0 | 40 5 -3.2 -3.7 28 200 12510 105 13 -12.6 3.4 | 86 6 -5.7 -0.4 29 191 12802 105 13 -12.6 3.4 | 86 6 -5.7 -0.4 30 150 14300 110 21 -19.7 7.2 | 105 13 -12.9 3.5 31 127 15240 120 25 -21.7 12.5 | 121 17 -14.8 8.8 32 121 15545 110 26 -24.4 8.9 | 106 18 -17.6 5.2 33 108 16200 105 35 -33.8 9.1 | 101 27 -27.0 5.3 34 100 16630 90 47 -47.0 0.0 | 85 40 -40.2 -3.7 35 98 16764 90 47 -47.0 0.0 | 85 40 -40.2 -3.7 36 88 17374 100 14 -13.8 2.4 | 79 7 -6.9 -1.3 37 79 17983 275 10 10.0 -0.9 | 285 17 16.8 -4.6 38 70 18680 255 35 33.8 9.1 | 263 41 40.7 5.3 39 67 18898 255 35 33.8 9.1 | 263 41 40.7 5.3 40 61 19507 250 17 16.0 5.8 | 265 23 22.8 2.1 41 55 20117 285 31 29.9 -8.0 | 288 39 36.8 -11.7 42 52 20422 275 44 43.8 -3.8 | 278 51 50.7 -7.6 43 50 20650 260 26 25.6 4.5 | 269 32 32.4 0.8 44 47 21031 250 21 19.7 7.2 | 263 27 26.6 3.5 45 45 21336 265 26 25.9 2.3 | 273 33 32.7 -1.5 46 39 22250 310 26 19.9 -16.7 | 307 34 26.8 -20.4 47 37 22555 285 16 15.5 -4.1 | 289 24 22.3 -7.9 48 33 23165 290 23 21.6 -7.9 | 292 31 28.5 -11.6 49 32 23470 275 20 19.9 -1.7 | 282 27 26.8 -5.5 50 30 23774 270 10 10.0 -0.0 | 282 17 16.8 -3.7 51 30 23780 150 3 -1.5 2.6 | 282 5 5.3 -1.1 52 29 24079 150 3 -1.5 2.6 | 282 5 5.3 -1.1 53 27 24384 50 15 -11.5 -9.6 | 19 14 -4.6 -13.4 54 26 24689 70 19 -17.9 -6.5 | 47 15 -11.0 -10.2 55 25 24994 110 32 -30.1 10.9 | 107 24 -23.2 7.2 56 23 25603 95 36 -35.9 3.1 | 89 29 -29.0 -0.6 57 21 25908 80 40 -39.4 -6.9 | 72 34 -32.5 -10.7 58 20 26360 100 32 -31.5 5.6 | 94 25 -24.7 1.8 59 19 26518 110 36 -33.8 12.3 | 108 28 -27.0 8.6 60 16 27127 95 36 -35.9 3.1 | 89 29 -29.0 -0.6 Wind Parameters Mean winds (0-6000m): 88.6 at 10.4 knts Storm direction: 118.6 at 7.8 knts Shear (0-3000m) pos: 0.5 neg: 2.0 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): 131.9 deg Storm rel helicity (0-3000m) pos: 13.4 neg: -18.9 tot: -5.5 m^2/s^2 ave: -1.8 10^-3 m/s^2 rel: 0.06 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 0.3 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 16.88 Bulk Shear: 23.36 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 ------------------------------------------------------------------------------- 500 221 4 275 9| 0.0 1.6 1.6| 1.7 -6.0 -4.4 -8.7 -0.35| 5.0 -1.8 1000 225 3 282 9| 1.1 0.8 1.9| 8.1 -8.7 -0.6 -0.6 0.01| 4.7 0.0 1500 195 3 277 8| 0.7 2.1 2.8| 9.2 -13.3 -4.1 -2.7 -0.08| 5.3 -0.4 2000 158 3 276 6| 0.5 2.0 2.5| 10.6 -13.3 -2.7 -1.3 0.05| 4.7 0.2 2500 133 4 283 4| 0.5 1.6 2.2| 12.5 -13.3 -0.8 -0.3 0.20| 4.5 0.9 3000 122 5 292 2| 0.5 2.0 2.5| 13.4 -18.9 -5.5 -1.8 0.06| 5.2 0.3 4000 100 7 4 3| 0.3 1.6 1.9| 16.4 -26.4 -10.0 -2.5 -0.01| 4.7 -0.1 5000 90 9 31 4| 0.8 1.3 2.0| 26.1 -27.8 -1.8 -0.4 0.06| 4.5 0.2 6000 89 10 42 5| 0.6 1.0 1.6| 38.5 -45.3 -6.8 -1.1 -0.01| 4.7 -0.0 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250429.00.gif