UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042700.upa.cvt Date: 0000Z 27 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 27 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 63 120 4 SFC 998 85 26.0 23.0 84 3.0 23.8 120 4 299.3 302.6 297.0 351.9 18.00 2 992 138 27.0 22.0 74 5.0 23.4 112 5 300.8 304.0 296.8 350.8 17.01 3 938 628 23.2 19.9 82 3.3 20.9 47 7 301.8 304.7 296.3 348.4 15.78 4 925 750 23.4 16.4 65 7.0 18.6 25 10 303.2 305.6 294.6 341.2 12.78 5 919 807 23.8 14.8 57 9.0 17.8 28 9 304.2 306.4 294.0 338.8 11.59 6 882 1166 23.0 13.0 53 10.0 16.4 43 10 307.0 309.0 294.1 339.4 10.73 7 850 1488 20.8 12.8 60 8.0 15.5 40 15 307.9 310.0 294.6 341.2 10.99 8 700 3142 11.8 4.8 62 7.0 7.6 65 12 315.6 317.0 294.3 339.8 7.73 9 534 5357 -1.3 -3.2 87 1.9 -2.3 68 11 325.3 326.4 295.3 343.9 5.67 10 513 5676 -2.5 -9.5 59 7.0 -5.7 66 11 327.6 328.3 294.3 339.8 3.63 11 500 5880 -3.7 -6.4 81 2.7 -5.0 65 11 328.5 329.5 295.4 344.4 4.74 12 489 6055 -4.7 -7.1 83 2.4 -5.8 69 10 329.4 330.3 295.5 344.9 4.60 13 453 6654 -7.9 -14.9 57 7.0 -10.6 60 11 332.7 333.2 294.8 341.9 2.66 14 437 6932 -9.5 -18.5 48 9.0 -12.7 73 12 334.1 334.5 294.6 341.3 2.03 15 400 7610 -14.1 -19.1 66 5.0 -15.8 75 19 336.7 337.1 295.3 344.2 2.11 16 334 8952 -23.7 -26.9 75 3.2 -24.5 77 16 341.3 341.6 295.7 346.0 1.27 17 320 9264 -24.9 -30.9 57 6.0 -26.2 80 16 343.9 344.1 296.0 347.3 0.91 18 300 9730 -28.7 -33.7 62 5.0 -29.6 85 15 344.9 345.1 296.1 347.8 0.74 19 292 9923 -30.1 -34.3 67 4.2 -30.8 89 15 345.6 345.8 296.3 348.4 0.72 20 263 10660 -36.1 -44.1 44 8.0 -37.0 86 15 347.3 347.4 296.3 348.5 0.29 21 252 10955 -38.7 -43.6 60 4.9 -39.2 85 15 347.7 347.8 296.4 349.0 0.32 22 250 11010 -38.9 -45.9 48 7.0 -39.5 85 15 348.2 348.3 296.5 349.3 0.25 23 248 11065 -39.1 -56.1 15 17.0 -40.1 85 15 348.7 348.8 296.4 349.1 0.08 24 245 11148 -39.9 -48.9 38 9.0 -40.6 84 15 348.8 348.8 296.5 349.5 0.18 25 234 11459 -42.5 -51.5 37 9.0 -43.0 81 17 349.4 349.5 296.6 350.0 0.14 26 223 11782 -44.1 -71.1 3 27.0 -44.9 86 15 351.8 351.8 297.0 351.9 0.01 27 200 12500 -50.1 -72.1 6 22.0 -50.5 110 9 353.4 353.4 297.4 353.5 0.01 28 150 14310 -66.7 -78.7 17 12.0 -66.8 240 12 355.2 355.2 297.7 355.2 0.01 29 139 14767 -70.9 -77.9 35 7.0 -70.9 223 11 355.6 355.6 297.8 355.6 0.01 30 121 15577 -77.5 -81.1 56 3.6 -77.5 130 11 357.9 357.9 298.3 358.0 0.00 31 101 16595 -84.9 -89.7 42 4.8 -84.9 102 26 362.7 362.7 299.2 362.7 0.00 32 100 16650 -85.3 -90.1 42 4.8 -85.3 100 26 362.9 362.9 299.2 362.9 0.00 33 94 16989 -87.3 -92.0 41 4.7 -87.3 95 29 365.5 365.5 299.7 365.5 0.00 34 87 17418 -79.7 -87.7 25 8.0 -79.7 69 27 388.9 388.9 303.6 388.9 0.00 35 81 17820 -82.3 -89.3 29 7.0 -82.3 105 14 391.6 391.6 304.0 391.6 0.00 36 70 18660 -71.1 -91.1 4 20.0 -71.2 275 41 432.3 432.3 309.1 432.3 0.00 37 65 19097 -73.9 -90.9 6 17.0 -74.0 277 40 435.4 435.4 309.4 435.4 0.00 38 50 20650 -68.9 -90.9 3 22.0 -69.1 265 27 481.1 481.1 313.5 481.1 0.00 39 43 21553 -67.3 -90.3 2 23.0 -67.5 256 31 506.3 506.3 315.4 506.3 0.00 40 41 21838 -68.3 -91.3 2 23.0 -68.5 270 25 510.7 510.7 315.7 510.7 0.00 41 39 22142 -62.5 -91.5 1 29.0 -63.0 293 26 532.7 532.7 317.1 532.8 0.00 42 37 22468 -59.1 -89.1 1 30.0 -59.9 290 27 549.6 549.6 318.1 549.6 0.00 43 30 23770 -62.3 -91.3 1 29.0 -63.0 285 8 574.8 574.8 319.4 574.8 0.00 44 26 24667 -56.7 -88.7 1 32.0 -58.2 58 23 614.7 614.7 321.3 614.8 0.01 45 25 24915 -58.9 -88.9 1 30.0 -60.1 56 32 615.3 615.3 321.3 615.4 0.01 46 20 26330 -55.1 -87.1 1 32.0 -57.3 75 39 667.5 667.5 323.3 667.6 0.01 47 17 27373 -53.1 -87.1 1 34.0 -56.1 73 39 705.7 705.7 324.6 705.8 0.01 TRP 94 16989 -87.3 -92.0 41 4.7 -87.3 95 29 365.5 365.5 299.7 365.5 0.00 WND Sounding variables and indices 1000-500 mb thick: 5817.00 m Freezing level: 550.47 mb = 5136.92 m = 16853.20 ft Wetbulb zero: 572.73 mb = 4783.83 m = 15694.78 ft Precipitable water: 2.03 inches Sfc-500 mean rel hum: 68.55 % Est. max temperature: 34.70 C = 94.46 F Sfc-Lift cond lev (LCL): 955.78 mb = 463.93 m = 1522.05 ft T: 24.48 C 700-500 lapse rate: 5.66 C/km ThetaE index: 13.17 C Layer 992.0- 882.0 mb Conv cond level (CCL): 759.62 mb = 2445.69 m = 8023.82 ft Mean mixing ratio: 14.82 g/kg Conv temperature: 39.03 C = 102.26 F Cap Strength: 4.65 C Lifted Index: 0.62 C Risk: Showers probable Lifted Index @300 mb: 1.81 C Lifted Index @700 mb: 2.29 C Showalter Index: 2.61 C Risk: Showers probable Total Totals Index: 41.00 C Risk: None Vertical Totals Index: 24.50 C Cross Totals Index: 16.50 C K Index: 30.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 194.60 Risk: None Energy Index: 0.62 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 20.53 J/kg Max Up Vert Vel: 6.41 m/s Conv Inhibition (B-): 24000.23 J/kg Cap Strength: 4.65 C Lift Cond Lev (LCL): 874.43 mb = 1241.44 m = 4072.92 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 82 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 ---------------------------------------------------------- 0 998 85 120 4 -3.5 2.0 | 233 5 4.0 3.0 1 973 305 85 7 -7.0 -0.6 | 230 1 0.5 0.4 2 940 610 50 7 -5.4 -4.5 | 328 4 2.1 -3.5 3 925 750 25 10 -4.2 -9.1 | 338 9 3.3 -8.0 4 908 914 35 8 -4.6 -6.6 | 332 6 2.9 -5.5 5 877 1219 45 11 -7.8 -7.8 | 2 7 -0.3 -6.7 6 850 1488 40 15 -9.6 -11.5 | 12 11 -2.1 -10.4 7 846 1524 40 15 -9.6 -11.5 | 12 11 -2.1 -10.4 8 788 2134 30 14 -7.0 -12.1 | 357 11 0.5 -11.1 9 760 2438 40 11 -7.1 -8.4 | 357 7 0.4 -7.4 10 708 3048 65 12 -10.9 -5.1 | 40 5 -3.4 -4.0 11 700 3142 65 12 -10.9 -5.1 | 40 5 -3.4 -4.0 12 633 3962 30 4 -2.0 -3.5 | 294 6 5.5 -2.4 13 610 4267 45 6 -4.2 -4.2 | 314 5 3.3 -3.2 14 587 4572 50 10 -7.7 -6.4 | 2 5 -0.2 -5.4 15 566 4877 70 11 -10.3 -3.8 | 46 4 -2.8 -2.7 16 500 5880 65 11 -10.0 -4.6 | 34 4 -2.5 -3.6 17 486 6096 70 10 -9.4 -3.4 | 39 3 -1.9 -2.4 18 468 6401 80 12 -11.8 -2.1 | 76 4 -4.3 -1.0 19 449 6706 55 11 -9.0 -6.3 | 16 5 -1.5 -5.3 20 432 7010 80 12 -11.8 -2.1 | 76 4 -4.3 -1.0 21 400 7610 75 19 -18.4 -4.9 | 70 12 -10.9 -3.9 22 383 7925 75 19 -18.4 -4.9 | 70 12 -10.9 -3.9 23 368 8230 70 17 -16.0 -5.8 | 61 10 -8.5 -4.8 24 300 9730 85 15 -14.9 -1.3 | 88 7 -7.4 -0.3 25 299 9754 90 15 -15.0 0.0 | 98 8 -7.5 1.0 26 250 11010 85 15 -14.9 -1.3 | 88 7 -7.4 -0.3 27 229 11582 80 17 -16.7 -3.0 | 78 9 -9.2 -1.9 28 209 12192 100 11 -10.8 1.9 | 132 4 -3.3 3.0 29 200 12500 110 9 -8.5 3.1 | 167 4 -1.0 4.1 30 150 14310 240 12 10.4 6.0 | 249 19 17.9 7.0 31 150 14326 235 10 8.2 5.7 | 247 17 15.7 6.8 32 142 14630 240 12 10.4 6.0 | 249 19 17.9 7.0 33 128 15240 155 7 -3.0 6.3 | 212 9 4.5 7.4 34 121 15545 130 11 -8.4 7.1 | 173 8 -0.9 8.1 35 115 15850 105 16 -15.5 4.1 | 123 9 -8.0 5.2 36 109 16154 120 26 -22.5 13.0 | 133 21 -15.0 14.0 37 103 16459 105 27 -26.1 7.0 | 113 20 -18.6 8.0 38 100 16650 100 26 -25.6 4.5 | 107 19 -18.1 5.6 39 98 16764 100 26 -25.6 4.5 | 107 19 -18.1 5.6 40 94 16989 95 29 -28.9 2.5 | 99 22 -21.4 3.6 41 93 17069 105 31 -29.9 8.0 | 112 24 -22.4 9.1 42 88 17374 65 30 -27.2 -12.7 | 59 23 -19.7 -11.6 43 83 17678 85 15 -14.9 -1.3 | 88 7 -7.4 -0.3 44 79 17983 125 13 -10.6 7.5 | 160 9 -3.1 8.5 45 75 18288 80 11 -10.8 -1.9 | 75 3 -3.3 -0.9 46 71 18593 340 12 4.1 -11.3 | 311 15 11.6 -10.2 47 70 18660 275 41 40.8 -3.6 | 273 48 48.3 -2.5 48 67 18898 280 33 32.5 -5.7 | 277 40 40.0 -4.7 49 64 19202 275 44 43.8 -3.8 | 273 51 51.3 -2.8 50 55 20117 270 35 35.0 -0.0 | 269 43 42.5 1.0 51 52 20422 250 26 24.4 8.9 | 253 33 31.9 9.9 52 50 20650 265 27 26.9 2.4 | 264 35 34.4 3.4 53 47 21031 265 27 26.9 2.4 | 264 35 34.4 3.4 54 43 21641 255 32 30.9 8.3 | 256 40 38.4 9.3 55 40 21946 275 22 21.9 -1.9 | 272 29 29.4 -0.9 56 38 22250 300 27 23.4 -13.5 | 292 33 30.9 -12.5 57 35 22860 275 26 25.9 -2.3 | 272 33 33.4 -1.2 58 33 23165 280 28 27.6 -4.9 | 276 35 35.1 -3.8 59 30 23770 285 8 7.7 -2.1 | 274 15 15.2 -1.0 60 30 23774 265 17 16.9 1.5 | 264 25 24.4 2.5 61 29 24079 295 11 10.0 -4.6 | 282 18 17.5 -3.6 62 27 24384 60 13 -11.3 -6.5 | 35 7 -3.8 -5.5 63 25 24994 55 34 -27.9 -19.5 | 48 27 -20.4 -18.5 64 22 25603 80 28 -27.6 -4.9 | 79 20 -20.1 -3.8 65 20 26330 75 39 -37.7 -10.1 | 73 31 -30.2 -9.0 66 19 26518 80 47 -46.3 -8.2 | 80 39 -38.8 -7.1 67 16 27127 70 35 -32.9 -12.0 | 67 28 -25.4 -10.9 68 15 27432 90 31 -31.0 0.0 | 93 24 -23.5 1.0 69 14 27737 90 39 -39.0 0.0 | 92 32 -31.5 1.0 Wind Parameters Mean winds (0-6000m): 52.1 at 10.1 knts Storm direction: 82.1 at 7.6 knts Shear (0-3000m) pos: 1.4 neg: 2.5 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 167.0 deg Storm rel helicity (0-3000m) pos: 17.4 neg: -9.4 tot: 8.0 m^2/s^2 ave: 2.7 10^-3 m/s^2 rel: 0.25 Storm rel vorticity (0-3000m) horiz: 5.7 stream: 1.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 5.40 Bulk Shear: 3.81 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 80 6 274 1| 0.0 6.8 6.8| 0.5 -0.7 -0.2 -0.5 0.17| 8.8 1.5 1000 53 8 337 4| 0.0 5.0 5.0| 4.3 -1.7 2.6 2.6 0.21| 8.4 1.8 1500 48 9 353 5| 0.0 5.1 5.1| 9.9 -2.5 7.5 5.0 0.27| 7.6 2.1 2000 43 11 358 7| 0.0 3.8 3.8| 9.9 -8.8 1.1 0.6 0.16| 6.3 1.0 2500 41 11 358 7| 0.9 3.0 3.9| 11.8 -9.4 2.4 1.0 0.16| 6.0 0.9 3000 44 11 2 7| 1.4 2.5 3.9| 17.4 -9.4 8.0 2.7 0.25| 5.7 1.4 4000 46 10 359 6| 1.0 1.7 2.8| 18.4 -21.1 -2.7 -0.7 -0.01| 5.6 -0.0 5000 48 10 359 6| 1.3 1.4 2.7| 28.9 -21.2 7.6 1.5 0.15| 5.4 0.8 6000 52 10 5 5| 1.1 1.2 2.3| 29.1 -22.0 7.2 1.2 0.14| 4.7 0.7 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250427.00.gif