UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102012.upa.cvt Date: 1200Z 20 OCT 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 20 OCT 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 1005 85 25.0 22.0 83 3.0 22.9 230 2 297.7 300.8 295.8 346.4 16.79 1 1000 125 24.2 23.5 96 0.7 23.7 230 2 297.4 300.7 296.8 351.1 18.53 2 943 640 21.6 21.6 100 0.0 21.6 49 1 299.7 302.9 296.8 350.9 17.48 3 925 808 20.6 20.3 98 0.3 20.4 290 1 300.4 303.4 296.3 348.5 16.42 4 913 921 20.6 18.7 89 1.9 19.3 294 5 301.5 304.3 295.7 345.8 15.03 5 896 1085 20.8 15.8 73 5.0 17.4 271 5 303.3 305.7 294.6 341.0 12.70 6 850 1540 17.6 17.4 99 0.2 17.5 205 4 304.6 307.3 296.4 348.9 14.87 7 844 1601 17.2 17.2 100 0.0 17.2 197 4 304.8 307.5 296.4 348.9 14.79 8 755 2545 11.2 11.2 100 0.0 11.2 119 4 308.1 310.2 294.8 341.9 11.14 9 751 2589 10.0 5.5 74 4.5 7.4 121 4 307.3 308.7 291.8 330.3 7.56 10 736 2758 10.2 8.0 86 2.2 8.9 128 4 309.3 311.0 293.7 337.4 9.19 11 700 3175 8.6 1.6 61 7.0 4.7 145 5 312.0 313.2 292.0 331.2 6.15 12 691 3282 8.6 -1.4 49 10.0 3.4 140 5 313.2 314.1 291.4 328.9 5.00 13 681 3403 7.6 3.3 74 4.3 5.1 134 5 313.4 314.7 293.2 335.6 7.14 14 652 3762 5.2 2.2 81 3.0 3.5 116 6 314.6 315.9 293.4 336.2 6.90 15 527 5475 -4.9 -5.2 98 0.3 -5.1 124 9 322.2 323.2 293.9 338.3 4.93 16 519 5596 -4.7 -9.3 70 4.6 -6.7 129 8 323.8 324.6 293.3 336.0 3.64 17 500 5890 -6.3 -8.7 83 2.4 -7.4 140 7 325.4 326.1 294.0 338.6 3.97 18 484 6142 -7.9 -10.7 80 2.8 -9.1 142 9 326.4 327.1 293.9 338.2 3.50 19 478 6239 -7.5 -14.5 57 7.0 -10.2 145 9 328.1 328.6 293.6 337.0 2.60 20 470 6369 -7.7 -19.7 38 12.0 -11.8 150 10 329.4 329.8 293.2 335.4 1.71 21 455 6620 -9.3 -24.3 28 15.0 -13.7 160 10 330.5 330.7 293.0 334.7 1.18 22 449 6722 -10.1 -18.1 52 8.0 -12.9 164 10 330.7 331.2 293.8 337.9 2.05 23 432 7017 -11.7 -17.7 61 6.0 -13.8 175 11 332.4 332.8 294.3 340.1 2.20 24 412 7377 -13.5 -37.5 11 24.0 -18.3 144 14 334.6 334.7 293.3 336.0 0.37 25 402 7562 -14.7 -22.7 51 8.0 -17.1 141 12 335.4 335.7 294.6 340.9 1.54 26 400 7600 -15.3 -23.3 50 8.0 -17.7 140 11 335.1 335.4 294.4 340.4 1.46 27 394 7715 -15.7 -22.7 55 7.0 -17.8 135 10 336.0 336.4 294.7 341.7 1.57 28 380 7987 -18.1 -22.3 70 4.2 -19.3 122 9 336.4 336.7 294.9 342.4 1.68 29 355 8495 -21.1 -29.1 49 8.0 -22.9 98 9 338.9 339.1 294.9 342.6 0.97 30 300 9720 -29.9 -41.9 30 12.0 -31.4 90 12 343.2 343.3 295.4 344.5 0.32 31 274 10354 -35.5 -47.5 28 12.0 -36.6 93 11 344.1 344.2 295.5 344.9 0.19 32 250 10980 -41.1 -50.1 37 9.0 -41.7 80 8 345.0 345.0 295.7 345.6 0.16 33 204 12332 -52.9 -57.2 59 4.3 -53.1 48 3 347.0 347.0 296.0 347.4 0.08 34 200 12460 -53.9 -59.9 48 6.0 -54.1 45 2 347.4 347.4 296.1 347.7 0.06 35 177 13231 -60.1 -67.1 39 7.0 -60.2 11 12 349.6 349.6 296.5 349.7 0.03 36 151 14200 -68.7 -71.2 70 2.5 -68.7 5 10 351.1 351.1 296.9 351.1 0.02 37 150 14240 -68.9 -71.8 66 2.9 -68.9 360 10 351.4 351.4 297.0 351.5 0.02 38 142 14566 -70.1 -78.1 30 8.0 -70.1 331 11 354.9 354.9 297.7 354.9 0.01 39 103 16423 -80.5 -87.5 30 7.0 -80.5 135 11 369.1 369.1 300.4 369.1 0.00 40 101 16534 -79.9 -86.9 30 7.0 -79.9 178 11 372.3 372.3 300.9 372.3 0.00 41 100 16590 -80.1 -87.1 30 7.0 -80.1 200 11 373.0 373.0 301.1 373.0 0.00 42 91 17124 -81.9 -87.9 35 6.0 -81.9 70 6 379.6 379.6 302.2 379.6 0.00 43 86 17444 -80.7 -88.7 25 8.0 -80.7 43 12 388.2 388.2 303.5 388.2 0.00 44 84 17581 -70.5 -86.5 8 16.0 -70.6 358 21 411.5 411.5 306.7 411.5 0.00 45 70 18660 -73.7 -88.7 8 15.0 -73.7 270 40 426.7 426.7 308.5 426.7 0.00 46 69 18744 -73.9 -88.9 8 15.0 -74.0 270 41 428.0 428.0 308.6 428.1 0.00 47 63 19272 -74.9 -89.9 8 15.0 -75.0 272 36 437.1 437.1 309.6 437.1 0.00 48 55 20067 -70.3 -91.3 3 21.0 -70.4 279 16 465.0 465.0 312.2 465.0 0.00 49 50 20630 -72.1 -91.1 4 19.0 -72.2 110 20 473.6 473.6 313.0 473.6 0.00 50 48 20870 -73.3 -92.3 4 19.0 -73.4 102 21 476.3 476.3 313.1 476.3 0.00 51 46 21121 -68.9 -92.9 2 24.0 -69.1 100 28 492.7 492.7 314.4 492.7 0.00 52 41 21814 -66.3 -92.3 1 26.0 -66.6 92 51 515.7 515.7 316.0 515.7 0.00 53 30 23740 -58.9 -91.9 1 33.0 -59.9 95 63 584.1 584.1 319.9 584.1 0.00 54 27 24408 -55.7 -91.7 0 36.0 -57.3 95 70 610.9 610.9 321.1 610.9 0.00 55 20 26340 -51.9 -88.9 0 37.0 -54.9 90 56 677.3 677.3 323.7 677.4 0.01 56 17 27401 -48.7 -86.7 0 38.0 -53.1 90 55 719.8 719.8 325.0 719.9 0.01 57 17 27401 -48.7 -86.7 0 38.0 -53.1 90 55 719.8 719.8 325.0 719.9 0.01 TRP 91 17124 -81.9 -87.9 35 6.0 -81.9 70 6 379.6 379.6 302.2 379.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5765.00 m Freezing level: 587.64 mb = 4644.05 m = 15236.20 ft Wetbulb zero: 600.69 mb = 4421.69 m = 14506.67 ft Precipitable water: 2.22 inches Sfc-500 mean rel hum: 87.58 % Est. max temperature: 31.73 C = 89.11 F Sfc-Lift cond lev (LCL): 962.37 mb = 461.58 m = 1514.36 ft T: 22.50 C 700-500 lapse rate: 5.49 C/km ThetaE index: 18.60 C Layer 844.0- 736.0 mb Conv cond level (CCL): 937.23 mb = 693.45 m = 2275.07 ft Mean mixing ratio: 17.21 g/kg Conv temperature: 27.22 C = 81.00 F Cap Strength: 1.27 C Lifted Index: -3.24 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.38 C Lifted Index @700 mb: -1.91 C Showalter Index: -2.98 C Risk: Severe thunderstorms possible Total Totals Index: 47.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.90 C Cross Totals Index: 23.70 C K Index: 34.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 223.80 Risk: None Energy Index: -2.13 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 895.46 J/kg Max Up Vert Vel: 42.32 m/s Conv Inhibition (B-): 14.98 J/kg Cap Strength: 1.24 C Lift Cond Lev (LCL): 945.62 mb = 615.60 m = 2019.67 ft Lev Free Conv (LFC): 850.62 mb = 1533.67 m = 5031.66 ft Equ Level (EL): 170.62 mb = 13455.13 m = 44143.59 ft B at Equ Level: 890.44 J/kg Max Parcel Lev (MPL): 100.62 mb = 16554.92 m = 54313.37 ft Wind level data Storm motion: 151 at 4 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 1005 85 230 2 1.5 1.3 | 305 5 3.7 -2.6 1 1000 125 230 2 1.5 1.3 | 305 5 3.7 -2.6 2 980 305 185 6 0.5 6.0 | 232 3 2.7 2.1 3 946 610 70 1 -0.9 -0.3 | 344 4 1.2 -4.2 4 925 808 290 1 0.9 -0.3 | 324 5 3.1 -4.2 5 914 914 295 5 4.5 -2.1 | 312 9 6.7 -6.0 6 850 1540 205 4 1.7 3.6 | 274 4 3.8 -0.3 7 792 2134 130 3 -2.3 1.9 | 4 2 -0.2 -2.0 8 764 2438 115 4 -3.6 1.7 | 34 3 -1.5 -2.2 9 700 3175 145 5 -2.9 4.1 | 105 1 -0.7 0.2 10 611 4267 90 7 -7.0 0.0 | 51 6 -4.9 -3.9 11 589 4572 90 12 -12.0 0.0 | 68 11 -9.9 -3.9 12 500 5890 140 7 -4.5 5.4 | 122 3 -2.4 1.5 13 487 6096 140 9 -5.8 6.9 | 129 5 -3.6 3.0 14 432 7010 175 11 -1.0 11.0 | 190 7 1.2 7.1 15 415 7315 145 15 -8.6 12.3 | 142 11 -6.5 8.4 16 400 7600 140 11 -7.1 8.4 | 133 7 -4.9 4.5 17 367 8230 110 8 -7.5 2.7 | 78 5 -5.4 -1.2 18 324 9144 65 11 -10.0 -4.6 | 42 12 -7.8 -8.5 19 300 9720 90 12 -12.0 0.0 | 68 11 -9.9 -3.9 20 286 10058 90 11 -11.0 0.0 | 66 10 -8.9 -3.9 21 250 10973 100 10 -9.8 1.7 | 74 8 -7.7 -2.2 22 250 10980 80 8 -7.9 -1.4 | 47 8 -5.7 -5.3 23 200 12460 45 2 -1.4 -1.4 | 352 5 0.7 -5.3 24 199 12497 45 2 -1.4 -1.4 | 352 5 0.7 -5.3 25 180 13106 10 10 -1.7 -9.8 | 358 14 0.4 -13.7 26 163 13716 15 20 -5.2 -19.3 | 7 23 -3.0 -23.2 27 155 14021 25 12 -5.1 -10.9 | 11 15 -2.9 -14.8 28 150 14240 360 10 -0.0 -10.0 | 351 14 2.1 -13.9 29 148 14326 20 11 -3.8 -10.3 | 6 14 -1.6 -14.2 30 140 14630 315 11 7.8 -7.8 | 320 15 9.9 -11.7 31 126 15240 310 19 14.6 -12.2 | 314 23 16.7 -16.1 32 120 15545 30 10 -5.0 -8.7 | 13 13 -2.9 -12.6 33 108 16154 35 10 -5.7 -8.2 | 17 13 -3.6 -12.1 34 100 16590 200 11 3.8 10.3 | 223 9 5.9 6.4 35 97 16764 200 11 3.8 10.3 | 223 9 5.9 6.4 36 92 17069 190 11 1.9 10.8 | 210 8 4.1 6.9 37 91 17124 70 6 -5.6 -2.1 | 30 7 -3.5 -5.9 38 87 17374 70 6 -5.6 -2.1 | 30 7 -3.5 -5.9 39 83 17678 330 27 13.5 -23.4 | 330 31 15.6 -27.3 40 75 18288 295 40 36.3 -16.9 | 298 44 38.4 -20.8 41 71 18593 285 49 47.3 -12.7 | 289 52 49.5 -16.6 42 70 18660 270 40 40.0 -0.0 | 275 42 42.1 -3.9 43 67 18898 270 42 42.0 -0.0 | 275 44 44.1 -3.9 44 57 19812 275 27 26.9 -2.4 | 282 30 29.0 -6.2 45 55 20117 280 14 13.8 -2.4 | 292 17 15.9 -6.3 46 50 20630 110 20 -18.8 6.8 | 100 17 -16.6 2.9 47 49 20726 95 19 -18.9 1.7 | 82 17 -16.8 -2.2 48 47 21031 110 23 -21.6 7.9 | 102 20 -19.5 4.0 49 45 21336 80 36 -35.5 -6.3 | 73 35 -33.3 -10.1 50 42 21641 95 46 -45.8 4.0 | 90 44 -43.7 0.1 51 40 21946 90 53 -53.0 0.0 | 86 51 -50.9 -3.9 52 38 22250 80 52 -51.2 -9.0 | 75 51 -49.1 -12.9 53 33 23165 90 66 -66.0 0.0 | 87 64 -63.9 -3.9 54 30 23740 95 63 -62.8 5.5 | 92 61 -60.6 1.6 55 26 24689 95 73 -72.7 6.4 | 92 71 -70.6 2.5 56 20 26340 90 56 -56.0 0.0 | 86 54 -53.9 -3.9 57 13 27737 90 53 -53.0 0.0 | 86 51 -50.9 -3.9 Wind Parameters Mean winds (0-6000m): 121.2 at 5.9 knts Storm direction: 151.2 at 4.4 knts Shear (0-3000m) pos: 0.3 neg: 0.9 tot: 1.2 10-3/s Storm rel Dir Shear (0-3000m): 139.1 deg Storm rel helicity (0-3000m) pos: 2.2 neg: -19.9 tot: -17.7 m^2/s^2 ave: -5.9 10^-3 m/s^2 rel: -0.18 Storm rel vorticity (0-3000m) horiz: 6.1 stream: -1.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 230.12 Bulk Shear: 3.89 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 ------------------------------------------------------------------------------- 500 185 4 276 2| 0.0 3.4 3.4| 0.0 -5.7 -5.6 -11.3 -0.18| 15.3 -2.8 1000 227 3 291 5| 0.0 1.8 1.8| 0.0 -15.2 -15.1 -15.1 -0.36| 11.7 -4.2 1500 231 4 289 5| 0.0 0.8 0.8| 0.0 -19.9 -19.8 -13.2 -0.39| 9.7 -3.8 2000 214 4 283 4| 0.0 1.0 1.0| 0.9 -19.9 -19.0 -9.5 -0.28| 8.3 -2.3 2500 190 4 278 3| 0.0 1.1 1.1| 1.7 -19.9 -18.2 -7.3 -0.22| 7.0 -1.5 3000 171 4 277 2| 0.3 0.9 1.2| 2.2 -19.9 -17.7 -5.9 -0.18| 6.1 -1.1 4000 147 4 29 0| 0.2 1.1 1.4| 2.2 -21.6 -19.3 -4.8 -0.19| 5.3 -1.0 5000 121 5 66 3| 0.6 1.5 2.1| 13.5 -22.3 -8.8 -1.8 -0.07| 5.3 -0.4 6000 121 6 74 3| 0.9 1.2 2.2| 18.0 -22.3 -4.3 -0.7 -0.00| 5.0 -0.0 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251020.12.gif