UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042611.upa.cvt Date: 1100Z 26 APR 25 Searching for YBBN... Searching the city database file for: YBBN ... Date:1100Z 26 APR 25 Station: YBBN WMO ident: 94578 Latitude: -27.38 Longitude: 153.10 Elevation: 5.00 ------------------------------------------------------------------------------- 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 1011 5 21.8 20.8 94 1.0 21.1 5 3 294.0 296.8 293.9 338.2 15.47 1 1008 32 23.0 20.3 85 2.7 21.1 2 4 295.5 298.2 294.0 338.7 15.04 2 1000 103 22.4 20.4 88 2.0 21.0 355 7 295.5 298.3 294.1 339.4 15.26 3 945 594 18.2 17.8 98 0.4 17.9 35 5 296.1 298.6 293.2 335.5 13.69 4 925 778 17.8 13.6 76 4.2 15.1 50 4 297.5 299.4 291.3 328.4 10.64 5 923 797 17.8 13.4 75 4.4 15.0 46 4 297.7 299.6 291.2 328.3 10.52 6 877 1232 14.6 13.5 93 1.1 13.9 312 4 298.8 300.8 292.1 331.3 11.16 7 850 1497 13.8 11.2 84 2.6 12.1 255 4 300.6 302.4 291.6 329.7 9.88 8 796 2047 10.0 6.5 79 3.5 8.0 282 6 302.2 303.7 290.3 325.0 7.65 9 764 2387 7.4 7.4 100 0.0 7.4 299 7 303.0 304.6 291.2 328.3 8.49 10 700 3104 3.6 2.9 95 0.7 3.2 335 10 306.5 307.7 290.9 327.0 6.75 11 500 5790 -10.7 -24.7 31 14.0 -14.5 310 31 320.0 320.2 289.9 323.6 1.03 12 400 7470 -20.7 -53.7 3 33.0 -24.1 295 67 328.1 328.1 291.2 328.3 0.06 13 300 9560 -30.9 -49.9 14 19.0 -32.7 290 102 341.8 341.9 294.9 342.4 0.13 14 250 10830 -40.5 -61.5 9 21.0 -41.5 285 105 345.9 345.9 295.7 346.0 0.04 15 203 12223 -50.0 -71.0 7 21.0 -50.5 280 110 352.1 352.1 297.1 352.1 0.01 16 200 12320 -50.7 -71.7 7 21.0 -51.1 280 110 352.5 352.5 297.2 352.5 0.01 17 150 14130 -64.1 -80.1 9 16.0 -64.2 275 84 359.7 359.7 298.7 359.7 0.00 18 121 15421 -70.9 -84.9 11 14.0 -70.9 290 71 370.0 370.0 300.6 370.0 0.00 19 100 16550 -70.1 -87.1 7 17.0 -70.2 285 45 392.3 392.3 304.1 392.3 0.00 TRP 121 15421 -70.9 -84.9 11 14.0 -70.9 290 71 370.0 370.0 300.6 370.0 0.00 WND 203 12223 -50.0 -71.0 7 21.0 -50.5 280 110 352.1 352.1 297.1 352.1 0.01 Sounding variables and indices 1000-500 mb thick: 5687.00 m Freezing level: 649.65 mb = 3780.20 m = 12402.07 ft Wetbulb zero: 663.35 mb = 3533.26 m = 11591.93 ft Precipitable water: 1.61 inches Sfc-500 mean rel hum: 76.76 % Est. max temperature: 27.63 C = 81.74 F Sfc-Lift cond lev (LCL): 996.64 mb = 132.17 m = 433.63 ft T: 22.15 C 700-500 lapse rate: 5.32 C/km ThetaE index: 11.12 C Layer 945.0- 877.0 mb Conv cond level (CCL): 911.86 mb = 900.07 m = 2952.94 ft Mean mixing ratio: 13.51 g/kg Conv temperature: 25.73 C = 78.32 F Cap Strength: 0.85 C Lifted Index: -1.87 C Risk: Thunderstorms probable Lifted Index @300 mb: 6.11 C Lifted Index @700 mb: -2.51 C Showalter Index: 0.71 C Risk: Thunderstorms probable Total Totals Index: 46.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.50 C Cross Totals Index: 21.90 C K Index: 35.00 Risk: > 80 % chance of thunderstorms Sweat Index: 173.40 Risk: None Energy Index: -1.17 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 422.87 J/kg Max Up Vert Vel: 29.08 m/s Conv Inhibition (B-): 6.65 J/kg Cap Strength: 0.73 C Lift Cond Lev (LCL): 934.80 mb = 687.29 m = 2254.85 ft Lev Free Conv (LFC): 889.80 mb = 1108.81 m = 3637.79 ft Equ Level (EL): 389.80 mb = 7657.65 m = 25123.20 ft B at Equ Level: 422.14 J/kg Max Parcel Lev (MPL): 269.80 mb = 10299.06 m = 33789.15 ft Wind level data Storm motion: 348 at 10 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 1011 5 5 3 -0.3 -3.0 | 161 7 -2.4 7.0 1 1000 103 355 7 0.6 -7.0 | 152 3 -1.6 3.0 2 925 778 50 4 -3.1 -2.6 | 145 9 -5.3 7.4 3 850 1497 255 4 3.9 1.0 | 189 11 1.7 11.0 4 700 3104 335 10 4.2 -9.1 | 246 2 2.0 0.9 5 500 5790 310 31 23.7 -19.9 | 295 24 21.6 -9.9 6 400 7470 295 67 60.7 -28.3 | 287 61 58.5 -18.3 7 300 9560 290 102 95.8 -34.9 | 285 97 93.7 -24.9 8 250 10830 285 105 101.4 -27.2 | 280 101 99.2 -17.2 9 203 12223 280 110 108.3 -19.1 | 275 107 106.1 -9.1 10 200 12320 280 110 108.3 -19.1 | 275 107 106.1 -9.1 11 150 14130 275 84 83.7 -7.3 | 268 82 81.5 2.7 12 121 15421 290 71 66.7 -24.3 | 283 66 64.5 -14.3 13 100 16550 285 45 43.5 -11.6 | 272 41 41.3 -1.7 Wind Parameters Mean winds (0-6000m): 317.6 at 13.6 knts Storm direction: 347.6 at 10.2 knts Shear (0-3000m) pos: 1.9 neg: 1.5 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 77.4 deg Storm rel helicity (0-3000m) pos: 25.8 neg: -3.0 tot: 22.9 m^2/s^2 ave: 7.6 10^-3 m/s^2 rel: 0.34 Storm rel vorticity (0-3000m) horiz: 5.3 stream: 1.8 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 27.59 Bulk Shear: 15.33 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 7 6 145 5| 2.8 0.0 2.8| 0.1 -2.1 -2.0 -4.0 -0.22| 8.2 -1.8 1000 15 5 145 6| 1.4 1.3 2.6| 5.3 -2.1 3.2 3.2 0.07| 6.6 0.5 1500 7 5 153 6| 0.9 2.9 3.8| 11.9 -3.0 8.9 6.0 0.21| 7.0 1.5 2000 336 5 177 6| 1.0 2.2 3.1| 18.6 -3.0 15.6 7.8 0.29| 5.9 1.7 2500 322 5 190 6| 1.5 1.7 3.2| 23.4 -3.0 20.5 8.2 0.33| 5.5 1.8 3000 328 6 190 5| 1.9 1.5 3.3| 25.8 -3.0 22.9 7.6 0.34| 5.3 1.8 4000 330 8 205 4| 1.8 1.3 3.1| 29.5 -3.0 26.5 6.6 0.37| 5.0 1.8 5000 325 10 247 4| 1.5 1.7 3.2| 29.8 -5.0 24.8 5.0 0.29| 4.9 1.4 6000 318 14 271 7| 1.2 2.4 3.7| 30.1 -14.3 15.9 2.6 0.21| 5.1 1.1 Wrote GIF file: /home/apache/climate/data/raob//YBBN/skewt/YBBN.skewt.20250426.11.gif