UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102100.upa.cvt Date: 0000Z 21 OCT 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 21 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 1001 85 25.0 22.0 83 3.0 22.9 160 2 298.1 301.1 296.0 347.0 16.86 1 1000 87 24.8 22.0 84 2.8 22.8 75 2 298.0 301.0 296.0 347.0 16.87 2 995 131 24.8 23.5 92 1.3 23.9 89 2 298.4 301.8 297.2 352.6 18.63 3 972 338 25.6 20.7 74 4.9 22.1 146 3 301.2 304.1 296.3 348.3 16.01 4 932 709 24.2 18.2 69 6.0 20.0 152 5 303.4 306.0 295.7 345.7 14.25 5 925 775 23.6 19.3 77 4.3 20.6 150 6 303.4 306.3 296.4 349.2 15.41 6 916 860 22.6 20.9 90 1.7 21.4 159 6 303.3 306.4 297.5 354.4 17.23 7 877 1239 21.6 14.6 64 7.0 16.9 162 4 306.0 308.3 294.8 342.0 12.00 8 850 1510 19.6 14.8 74 4.8 16.4 160 3 306.7 309.0 295.4 344.4 12.55 9 700 3152 9.0 4.7 74 4.3 6.5 120 5 312.5 313.9 293.4 336.3 7.67 10 695 3212 8.6 5.1 79 3.5 6.5 121 5 312.6 314.2 293.7 337.3 7.95 11 656 3689 6.8 4.0 82 2.8 5.2 129 7 315.8 317.3 294.4 340.3 7.80 12 629 4035 5.6 0.6 70 5.0 2.8 136 9 318.3 319.5 294.0 338.6 6.37 13 602 4393 3.8 -1.2 70 5.0 1.1 129 10 320.2 321.3 294.1 339.0 5.83 14 593 4516 3.2 -6.8 48 10.0 -1.6 117 10 320.9 321.7 292.7 333.6 3.87 15 573 4794 0.8 -3.3 74 4.1 -1.3 117 10 321.2 322.3 293.9 338.3 5.24 16 503 5833 -4.9 -6.3 90 1.4 -5.6 139 5 326.5 327.5 294.8 342.3 4.75 17 500 5880 -5.3 -8.3 79 3.0 -6.7 140 5 326.6 327.4 294.4 340.3 4.09 18 499 5896 -5.3 -9.0 75 3.7 -7.0 141 5 326.8 327.5 294.3 339.8 3.88 19 479 6215 -6.9 -7.8 93 0.9 -7.3 147 6 328.6 329.5 295.1 343.6 4.44 20 437 6926 -9.9 -13.5 75 3.6 -11.3 131 8 333.6 334.2 295.3 344.3 3.09 21 407 7469 -14.5 -17.9 75 3.4 -15.7 118 9 334.5 334.9 295.0 342.6 2.30 22 400 7600 -14.9 -17.9 78 3.0 -16.0 115 9 335.6 336.1 295.3 343.9 2.34 23 357 8453 -19.7 -23.7 70 4.0 -20.8 141 12 340.3 340.6 295.7 346.1 1.58 24 300 9720 -29.3 -32.3 75 3.0 -29.9 340 2 344.1 344.3 296.0 347.3 0.85 25 292 9913 -31.1 -33.8 77 2.7 -31.6 340 2 344.2 344.4 296.0 347.1 0.75 26 250 11000 -39.7 -43.3 68 3.6 -40.1 75 8 347.0 347.1 296.3 348.4 0.33 27 219 11888 -47.7 -51.9 62 4.2 -47.9 48 9 348.1 348.1 296.3 348.7 0.14 28 200 12480 -52.5 -57.2 57 4.7 -52.7 30 10 349.6 349.6 296.6 350.0 0.08 29 163 13765 -64.1 -70.1 44 6.0 -64.1 322 6 351.2 351.2 296.9 351.3 0.02 30 161 13841 -64.7 -69.7 50 5.0 -64.7 318 5 351.4 351.4 297.0 351.5 0.02 31 152 14190 -66.5 -76.5 23 10.0 -66.5 299 4 354.2 354.2 297.5 354.2 0.01 32 150 14270 -67.1 -76.1 27 9.0 -67.2 295 4 354.5 354.5 297.6 354.5 0.01 33 108 16185 -81.5 -85.7 49 4.2 -81.5 310 15 362.2 362.2 299.1 362.2 0.00 34 101 16563 -79.1 -87.1 26 8.0 -79.1 349 9 373.8 373.8 301.2 373.8 0.00 35 100 16620 -79.3 -87.3 26 8.0 -79.3 10 5 374.5 374.5 301.4 374.5 0.00 36 87 17405 -82.3 -87.1 43 4.8 -82.3 304 15 383.7 383.7 302.8 383.7 0.00 37 84 17602 -80.3 -89.3 21 9.0 -80.3 301 16 391.6 391.6 304.0 391.6 0.00 38 83 17670 -74.5 -86.5 14 12.0 -74.6 300 16 404.8 404.8 305.9 404.8 0.00 39 81 17814 -71.3 -87.3 8 16.0 -71.4 305 22 414.2 414.2 307.0 414.2 0.00 40 70 18670 -74.3 -88.3 10 14.0 -74.3 280 37 425.4 425.4 308.3 425.4 0.00 41 64 19189 -76.9 -88.9 13 12.0 -76.9 290 32 430.8 430.8 308.9 430.8 0.00 42 52 20392 -73.9 -90.9 6 17.0 -74.0 65 10 464.1 464.1 312.1 464.1 0.00 43 50 20620 -75.3 -91.3 6 16.0 -75.4 125 26 466.0 466.0 312.3 466.1 0.00 44 49 20737 -75.7 -91.7 6 16.0 -75.7 120 23 467.8 467.8 312.4 467.8 0.00 45 45 21239 -68.5 -92.5 2 24.0 -68.7 106 37 496.8 496.8 314.7 496.8 0.00 46 42 21653 -69.1 -93.1 2 24.0 -69.3 104 47 505.2 505.2 315.3 505.2 0.00 47 39 22100 -65.9 -91.9 1 26.0 -66.2 94 53 524.1 524.1 316.6 524.2 0.00 48 38 22257 -66.3 -93.3 1 27.0 -66.7 91 55 527.0 527.0 316.8 527.0 0.00 49 37 22421 -62.7 -92.7 1 30.0 -63.3 87 58 540.3 540.3 317.5 540.3 0.00 50 32 23318 -61.9 -91.9 1 30.0 -62.6 93 63 565.4 565.4 318.9 565.4 0.00 51 30 23720 -59.5 -91.5 1 32.0 -60.5 90 60 582.4 582.4 319.8 582.4 0.00 52 27 24384 -56.3 -90.3 1 34.0 -57.8 92 61 609.2 609.2 321.0 609.3 0.00 TRP 108 16185 -81.5 -85.7 49 4.2 -81.5 310 15 362.2 362.2 299.1 362.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5793.00 m Freezing level: 563.18 mb = 4939.63 m = 16205.94 ft Wetbulb zero: 598.22 mb = 4444.73 m = 14582.28 ft Precipitable water: 2.18 inches Sfc-500 mean rel hum: 75.49 % Est. max temperature: 33.59 C = 92.46 F Sfc-Lift cond lev (LCL): 958.54 mb = 460.96 m = 1512.31 ft T: 25.14 C 700-500 lapse rate: 5.24 C/km ThetaE index: 12.38 C Layer 877.0- 850.0 mb Conv cond level (CCL): 827.44 mb = 1737.48 m = 5700.32 ft Mean mixing ratio: 16.01 g/kg Conv temperature: 34.43 C = 93.98 F Cap Strength: 2.95 C Lifted Index: -2.04 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -0.49 C Lifted Index @700 mb: -1.39 C Showalter Index: -0.28 C Risk: Thunderstorms probable Total Totals Index: 45.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.90 C Cross Totals Index: 20.10 C K Index: 35.40 Risk: > 80 % chance of thunderstorms Sweat Index: 188.60 Risk: None Energy Index: -0.86 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 338.78 J/kg Max Up Vert Vel: 26.03 m/s Conv Inhibition (B-): 97.93 J/kg Cap Strength: 2.88 C Lift Cond Lev (LCL): 896.05 mb = 1052.11 m = 3451.77 ft Lev Free Conv (LFC): 751.05 mb = 2556.67 m = 8387.94 ft Equ Level (EL): 211.05 mb = 12129.22 m = 39793.55 ft B at Equ Level: 336.04 J/kg Max Parcel Lev (MPL): 121.05 mb = 15519.76 m = 50917.23 ft Wind level data Storm motion: 162 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 1001 85 160 2 -0.7 1.9 | 344 2 0.6 -2.0 1 1000 87 75 2 -1.9 -0.5 | 9 4 -0.7 -4.4 2 976 305 145 3 -1.7 2.5 | 18 1 -0.5 -1.4 3 943 610 155 4 -1.7 3.6 | 60 1 -0.4 -0.3 4 925 775 150 6 -3.0 5.2 | 127 2 -1.8 1.3 5 910 914 165 6 -1.6 5.8 | 171 2 -0.3 1.9 6 850 1510 160 3 -1.0 2.8 | 348 1 0.2 -1.1 7 790 2134 95 2 -2.0 0.2 | 11 4 -0.7 -3.7 8 762 2438 80 1 -1.0 -0.2 | 356 4 0.3 -4.1 9 735 2743 0 0 -0.0 -0.0 | 342 4 1.2 -3.9 10 700 3152 120 5 -4.3 2.5 | 66 3 -3.1 -1.4 11 610 4267 140 10 -6.4 7.7 | 126 6 -5.2 3.8 12 588 4572 110 10 -9.4 3.4 | 87 8 -8.1 -0.5 13 566 4877 120 10 -8.7 5.0 | 99 7 -7.4 1.1 14 500 5880 140 5 -3.2 3.8 | 89 2 -2.0 -0.0 15 486 6096 150 6 -3.0 5.2 | 127 2 -1.8 1.3 16 400 7600 115 9 -8.2 3.8 | 89 7 -6.9 -0.1 17 367 8230 120 13 -11.3 6.5 | 105 10 -10.0 2.6 18 352 8534 150 11 -5.5 9.5 | 143 7 -4.3 5.6 19 300 9720 340 2 0.7 -1.9 | 341 6 1.9 -5.8 20 274 10363 340 1 0.3 -0.9 | 342 5 1.6 -4.8 21 250 11000 75 8 -7.7 -2.1 | 47 9 -6.5 -6.0 22 200 12480 30 10 -5.0 -8.7 | 17 13 -3.8 -12.5 23 150 14270 295 4 3.6 -1.7 | 319 7 4.9 -5.6 24 141 14630 320 3 1.9 -2.3 | 333 7 3.2 -6.2 25 134 14935 305 10 8.2 -5.7 | 316 13 9.4 -9.6 26 121 15545 295 14 12.7 -5.9 | 305 17 13.9 -9.8 27 114 15850 315 15 10.6 -10.6 | 321 19 11.9 -14.5 28 108 16185 310 15 11.5 -9.6 | 317 19 12.7 -13.5 29 103 16459 310 16 12.3 -10.3 | 316 20 13.5 -14.2 30 100 16620 10 5 -0.9 -4.9 | 358 9 0.4 -8.8 31 98 16764 10 5 -0.9 -4.9 | 358 9 0.4 -8.8 32 92 17069 310 13 10.0 -8.4 | 318 17 11.2 -12.2 33 83 17678 300 16 13.9 -8.0 | 308 19 15.1 -11.9 34 79 17983 310 28 21.4 -18.0 | 314 32 22.7 -21.9 35 75 18288 285 40 38.6 -10.4 | 290 42 39.9 -14.2 36 70 18670 280 37 36.4 -6.4 | 285 39 37.7 -10.3 37 64 19202 290 32 30.1 -10.9 | 295 35 31.3 -14.8 38 57 19812 290 17 16.0 -5.8 | 299 20 17.2 -9.7 39 55 20117 280 12 11.8 -2.1 | 295 14 13.1 -6.0 40 52 20422 80 10 -9.8 -1.7 | 57 10 -8.6 -5.6 41 50 20620 125 26 -21.3 14.9 | 119 23 -20.0 11.0 42 49 20726 120 23 -19.9 11.5 | 112 20 -18.7 7.6 43 47 21031 125 30 -24.6 17.2 | 120 27 -23.3 13.3 44 44 21336 100 39 -38.4 6.8 | 94 37 -37.2 2.9 45 42 21641 105 47 -45.4 12.2 | 101 45 -44.1 8.3 46 36 22555 85 59 -58.8 -5.1 | 81 58 -57.5 -9.0 47 31 23470 95 64 -63.8 5.6 | 92 63 -62.5 1.7 48 30 23720 90 60 -60.0 0.0 | 86 59 -58.8 -3.9 49 24 24689 95 62 -61.8 5.4 | 91 61 -60.5 1.5 Wind Parameters Mean winds (0-6000m): 132.1 at 5.4 knts Storm direction: 162.1 at 4.1 knts Shear (0-3000m) pos: 0.7 neg: 0.6 tot: 1.4 10-3/s Storm rel Dir Shear (0-3000m): 58.2 deg Storm rel helicity (0-3000m) pos: 8.8 neg: -2.5 tot: 6.3 m^2/s^2 ave: 2.1 10^-3 m/s^2 rel: 0.33 Storm rel vorticity (0-3000m) horiz: 3.8 stream: 1.3 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 418.15 Bulk Shear: 0.81 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 ------------------------------------------------------------------------------- 500 140 3 24 2| 0.0 2.0 2.0| 1.2 0.0 1.2 2.5 0.45| 5.2 2.3 1000 152 4 78 1| 0.7 1.0 1.7| 2.2 -0.0 2.2 2.2 0.53| 4.8 2.5 1500 155 4 73 0| 0.5 0.4 0.9| 2.3 -0.0 2.3 1.5 0.36| 4.2 1.5 2000 152 4 39 1| 0.4 0.9 1.2| 2.5 -0.2 2.3 1.1 0.31| 3.7 1.2 2500 147 3 23 1| 0.3 0.8 1.0| 2.5 -2.1 0.4 0.2 0.17| 3.4 0.6 3000 143 3 18 2| 0.7 0.6 1.4| 8.8 -2.5 6.3 2.1 0.33| 3.8 1.3 4000 138 4 56 2| 1.3 0.5 1.8| 14.9 -2.5 12.5 3.1 0.45| 3.7 1.7 5000 132 5 81 3| 1.1 0.8 1.9| 19.3 -11.2 8.1 1.6 0.29| 3.8 1.1 6000 132 5 85 3| 0.9 0.6 1.5| 20.1 -11.6 8.5 1.4 0.27| 3.7 1.0 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251021.00.gif