UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042812.upa.cvt Date: 1200Z 28 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 28 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 1003 85 23.0 23.0 100 0.0 23.0 110 2 295.9 299.1 296.1 347.5 17.91 1 1000 109 23.2 22.9 98 0.3 23.0 50 3 296.4 299.6 296.1 347.8 17.85 2 996 144 23.8 23.2 96 0.6 23.4 49 4 297.3 300.6 296.7 350.2 18.26 3 929 753 22.6 16.6 69 6.0 18.5 46 10 302.0 304.4 294.3 340.1 12.90 4 925 791 22.6 16.6 69 6.0 18.5 45 9 302.4 304.8 294.5 340.7 12.95 5 904 991 21.8 16.9 74 4.9 18.4 59 8 303.6 306.1 295.2 343.7 13.52 6 850 1523 19.2 14.2 73 5.0 15.8 85 11 306.3 308.5 294.9 342.5 12.07 7 765 2422 13.6 11.1 85 2.5 12.0 76 14 309.6 311.6 295.0 342.9 10.92 8 739 2713 12.4 7.4 72 5.0 9.3 97 11 311.4 313.0 293.9 338.4 8.78 9 700 3167 9.8 7.0 83 2.8 8.1 80 13 313.3 315.1 294.6 341.3 9.02 10 586 4625 0.6 0.5 99 0.1 0.5 132 13 319.0 320.3 294.5 340.6 6.79 11 543 5236 -2.3 -2.3 100 0.0 -2.3 131 10 322.5 323.7 294.8 341.9 5.96 12 500 5890 -4.9 -5.9 93 1.0 -5.4 80 9 327.1 328.0 295.1 343.5 4.93 13 441 6867 -10.1 -13.9 74 3.8 -11.6 126 10 332.5 333.1 295.0 342.7 2.96 14 400 7610 -16.5 -16.6 99 0.1 -16.6 105 8 333.5 334.1 295.0 342.7 2.61 15 387 7858 -18.5 -18.5 100 0.0 -18.5 105 10 334.1 334.6 294.8 342.2 2.30 16 385 7897 -17.5 -24.5 54 7.0 -19.4 105 11 335.9 336.2 294.5 340.9 1.37 17 380 7995 -16.9 -23.9 55 7.0 -18.9 107 12 337.9 338.2 295.1 343.3 1.46 18 354 8524 -21.3 -25.7 68 4.4 -22.4 105 14 338.9 339.2 295.3 343.8 1.33 19 336 8908 -23.1 -33.1 40 10.0 -25.1 90 14 341.6 341.7 295.3 344.3 0.70 20 313 9425 -26.5 -36.5 38 10.0 -28.2 71 14 343.8 344.0 295.7 345.9 0.54 21 300 9730 -29.3 -37.3 46 8.0 -30.6 75 14 344.1 344.2 295.8 346.1 0.52 22 280 10217 -33.5 -39.5 55 6.0 -34.3 75 14 344.9 345.0 295.9 346.6 0.44 23 258 10785 -38.5 -46.5 43 8.0 -39.2 77 12 345.7 345.7 295.9 346.6 0.23 24 250 11000 -39.7 -52.7 24 13.0 -40.6 80 7 347.0 347.1 296.1 347.5 0.12 25 224 11742 -45.1 -66.1 8 21.0 -45.8 102 4 349.8 349.8 296.6 349.9 0.02 26 200 12490 -50.9 -67.9 12 17.0 -51.3 115 11 352.2 352.2 297.1 352.3 0.02 27 189 12855 -53.9 -69.9 12 16.0 -54.2 121 12 353.1 353.1 297.3 353.2 0.02 28 163 13784 -62.3 -73.3 22 11.0 -62.4 151 13 354.2 354.2 297.5 354.3 0.01 29 150 14290 -67.3 -70.7 62 3.4 -67.3 155 12 354.2 354.2 297.5 354.2 0.02 30 148 14371 -68.3 -71.2 66 2.9 -68.3 156 12 353.8 353.8 297.4 353.9 0.02 31 140 14702 -71.1 -74.0 65 2.9 -71.1 158 11 354.5 354.5 297.6 354.6 0.01 32 100 16620 -85.7 -90.1 45 4.4 -85.7 80 25 362.1 362.1 299.1 362.2 0.00 33 93 17023 -81.7 -89.7 24 8.0 -81.7 84 31 377.6 377.6 301.9 377.6 0.00 34 91 17147 -75.3 -87.3 14 12.0 -75.3 85 27 392.7 392.7 304.2 392.7 0.00 35 86 17476 -73.5 -90.5 6 17.0 -73.6 29 14 402.7 402.7 305.6 402.7 0.00 36 71 18588 -76.5 -90.5 9 14.0 -76.6 258 33 419.0 419.0 307.6 419.0 0.00 37 70 18670 -75.1 -90.1 8 15.0 -75.2 260 36 423.7 423.7 308.2 423.7 0.00 38 55 20088 -67.7 -91.7 2 24.0 -67.9 284 31 470.9 470.9 312.7 470.9 0.00 39 50 20660 -67.5 -90.5 2 23.0 -67.7 265 34 484.4 484.4 313.8 484.4 0.00 40 45 21296 -66.5 -91.5 2 25.0 -66.8 268 34 501.7 501.7 315.1 501.7 0.00 41 39 22173 -61.5 -91.5 1 30.0 -62.1 293 20 535.3 535.3 317.2 535.3 0.00 42 33 23208 -61.5 -91.5 1 30.0 -62.2 282 15 561.5 561.5 318.7 561.5 0.00 TRP 100 16620 -85.7 -90.1 45 4.4 -85.7 80 25 362.1 362.1 299.1 362.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5781.00 m Freezing level: 577.10 mb = 4750.96 m = 15586.94 ft Wetbulb zero: 577.81 mb = 4737.44 m = 15542.59 ft Precipitable water: 2.24 inches Sfc-500 mean rel hum: 85.89 % Est. max temperature: 33.22 C = 91.79 F Sfc-Lift cond lev (LCL): 1003.42 mb = 85.00 m = 278.87 ft T: 23.00 C 700-500 lapse rate: 5.40 C/km ThetaE index: 10.09 C Layer 929.0- 925.0 mb Conv cond level (CCL): 815.30 mb = 1878.53 m = 6163.08 ft Mean mixing ratio: 15.10 g/kg Conv temperature: 34.70 C = 94.46 F Cap Strength: 3.15 C Lifted Index: 0.06 C Risk: Showers probable Lifted Index @300 mb: 2.09 C Lifted Index @700 mb: 0.76 C Showalter Index: 0.88 C Risk: Thunderstorms probable Total Totals Index: 43.20 C Risk: None Vertical Totals Index: 24.10 C Cross Totals Index: 19.10 C K Index: 35.50 Risk: > 80 % chance of thunderstorms Sweat Index: 201.40 Risk: None Energy Index: 0.13 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 95.71 J/kg Max Up Vert Vel: 13.84 m/s Conv Inhibition (B-): 164.90 J/kg Cap Strength: 3.15 C Lift Cond Lev (LCL): 904.21 mb = 988.62 m = 3243.46 ft Lev Free Conv (LFC): 659.21 mb = 3659.25 m = 12005.26 ft Equ Level (EL): 499.21 mb = 5902.26 m = 19364.15 ft B at Equ Level: 81.51 J/kg Max Parcel Lev (MPL): 309.21 mb = 9512.32 m = 31208.00 ft Wind level data Storm motion: 122 at 9 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 1003 85 110 2 -1.9 0.7 | 305 7 5.5 -3.9 1 1000 109 50 3 -2.3 -1.9 | 322 8 5.1 -6.5 2 978 305 45 9 -6.4 -6.4 | 354 11 1.1 -10.9 3 944 610 50 15 -11.5 -9.6 | 16 15 -4.1 -14.2 4 925 791 45 9 -6.4 -6.4 | 354 11 1.1 -10.9 5 912 914 55 8 -6.6 -4.6 | 355 9 0.9 -9.2 6 850 1523 85 11 -11.0 -1.0 | 33 7 -3.5 -5.5 7 850 1524 85 11 -11.0 -1.0 | 33 7 -3.5 -5.5 8 791 2134 85 15 -14.9 -1.3 | 52 10 -7.5 -5.9 9 763 2438 75 14 -13.5 -3.6 | 37 10 -6.1 -8.2 10 736 2743 100 11 -10.8 1.9 | 52 4 -3.4 -2.7 11 710 3048 80 12 -11.8 -2.1 | 33 8 -4.4 -6.7 12 700 3167 80 13 -12.8 -2.3 | 38 9 -5.4 -6.8 13 684 3353 95 12 -12.0 1.0 | 52 6 -4.5 -3.5 14 659 3658 80 12 -11.8 -2.1 | 33 8 -4.4 -6.7 15 611 4267 130 15 -11.5 9.6 | 141 6 -4.1 5.1 16 546 5182 135 10 -7.1 7.1 | 188 3 0.4 2.5 17 506 5791 70 11 -10.3 -3.8 | 19 9 -2.9 -8.3 18 500 5890 80 9 -8.9 -1.6 | 13 6 -1.4 -6.1 19 487 6096 90 8 -8.0 0.0 | 7 5 -0.6 -4.6 20 450 6706 130 11 -8.4 7.1 | 158 3 -1.0 2.5 21 400 7610 105 8 -7.7 2.1 | 7 3 -0.3 -2.5 22 383 7925 105 11 -10.6 2.8 | 62 4 -3.2 -1.7 23 368 8230 115 14 -12.7 5.9 | 104 5 -5.3 1.3 24 312 9449 70 14 -13.2 -4.8 | 31 11 -5.7 -9.4 25 300 9730 75 14 -13.5 -3.6 | 37 10 -6.1 -8.2 26 262 10668 75 14 -13.5 -3.6 | 37 10 -6.1 -8.2 27 250 11000 80 7 -6.9 -1.2 | 355 6 0.5 -5.8 28 229 11582 100 3 -3.0 0.5 | 312 6 4.5 -4.1 29 200 12490 115 11 -10.0 4.6 | 91 3 -2.5 0.1 30 200 12497 90 11 -11.0 0.0 | 38 6 -3.6 -4.6 31 181 13106 145 13 -7.5 10.6 | 180 6 -0.0 6.1 32 173 13411 160 14 -4.8 13.2 | 197 9 2.6 8.6 33 157 14021 145 13 -7.5 10.6 | 180 6 -0.0 6.1 34 150 14290 155 12 -5.1 10.9 | 201 7 2.4 6.3 35 141 14630 160 11 -3.8 10.3 | 212 7 3.7 5.8 36 100 16620 80 25 -24.6 -4.3 | 63 19 -17.2 -8.9 37 98 16764 80 25 -24.6 -4.3 | 63 19 -17.2 -8.9 38 92 17069 85 32 -31.9 -2.8 | 73 26 -24.5 -7.4 39 88 17374 85 17 -16.9 -1.5 | 57 11 -9.5 -6.1 40 83 17678 295 10 9.1 -4.2 | 298 19 16.5 -8.8 41 75 18288 250 23 21.6 7.9 | 264 29 29.0 3.3 42 70 18670 260 36 35.5 6.3 | 268 43 42.9 1.7 43 67 18898 265 35 34.9 3.1 | 272 42 42.3 -1.5 44 64 19202 250 41 38.5 14.0 | 258 47 46.0 9.4 45 58 19812 265 29 28.9 2.5 | 273 36 36.3 -2.1 46 55 20117 285 31 29.9 -8.0 | 289 39 37.4 -12.6 47 52 20422 270 43 43.0 -0.0 | 275 51 50.4 -4.6 48 50 20660 265 34 33.9 3.0 | 272 41 41.3 -1.6 49 46 21031 265 37 36.9 3.2 | 272 44 44.3 -1.4 50 41 21641 280 23 22.7 -4.0 | 286 31 30.1 -8.6 51 36 22250 325 13 7.5 -10.6 | 316 21 14.9 -15.2 52 33 22555 285 16 15.5 -4.1 | 291 24 22.9 -8.7 53 31 22860 265 7 7.0 0.6 | 285 15 14.4 -4.0 54 29 23165 230 10 7.7 6.4 | 263 15 15.1 1.8 55 27 23470 290 11 10.3 -3.8 | 295 20 17.8 -8.3 Wind Parameters Mean winds (0-6000m): 91.7 at 11.6 knts Storm direction: 121.7 at 8.7 knts Shear (0-3000m) pos: 1.6 neg: 2.9 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 89.8 deg Storm rel helicity (0-3000m) pos: 49.1 neg: -22.1 tot: 27.0 m^2/s^2 ave: 9.0 10^-3 m/s^2 rel: 0.30 Storm rel vorticity (0-3000m) horiz: 7.2 stream: 2.2 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 11.02 Bulk Shear: 8.68 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 48 9 356 11| 0.0 14.0 14.0| 30.7 0.0 30.7 61.3 0.83| 14.5 12.1 1000 50 10 359 11| 3.2 7.0 10.3| 33.8 -14.4 19.4 19.4 0.38| 11.7 4.5 1500 59 10 6 10| 2.9 4.7 7.6| 42.0 -14.4 27.6 18.4 0.47| 9.4 4.4 2000 68 11 15 9| 2.2 4.2 6.3| 46.6 -14.4 32.2 16.1 0.49| 7.9 3.9 2500 71 11 22 9| 1.9 3.3 5.2| 48.2 -19.6 28.6 11.4 0.39| 7.4 2.8 3000 74 11 25 8| 1.6 2.9 4.5| 49.1 -22.1 27.0 9.0 0.30| 7.2 2.2 4000 79 12 31 8| 2.2 2.2 4.4| 65.0 -24.9 40.1 10.0 0.37| 7.2 2.6 5000 91 12 45 6| 2.0 1.7 3.8| 73.7 -24.9 48.9 9.8 0.42| 6.6 2.8 6000 92 12 45 6| 1.7 2.0 3.7| 74.0 -34.7 39.3 6.5 0.22| 6.9 1.5 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250428.12.gif