UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120723.upa.cvt Date: 2300Z 7 DEC 25 Searching for YBBN... Searching the city database file for: YBBN ... Date:2300Z 7 DEC 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 1013 5 25.4 21.1 77 4.3 22.3 155 5 297.4 300.3 295.0 343.0 15.74 1 1009 40 23.4 19.9 81 3.5 21.0 143 5 295.8 298.4 293.8 337.9 14.65 2 1000 119 22.6 19.0 80 3.6 20.1 115 5 295.8 298.3 293.3 335.9 13.96 3 925 794 17.4 16.8 96 0.6 17.0 70 10 297.1 299.5 293.1 335.0 13.12 4 919 850 17.0 16.5 97 0.5 16.7 65 10 297.2 299.6 293.0 334.7 12.95 5 850 1513 13.4 12.2 92 1.2 12.6 45 12 300.2 302.1 292.0 331.2 10.56 6 829 1723 12.6 10.9 89 1.7 11.6 31 10 301.5 303.3 291.9 330.8 9.93 7 794 2086 13.0 6.0 62 7.0 8.9 12 4 305.7 307.0 291.2 328.1 7.40 8 723 2868 8.4 -3.6 43 12.0 2.5 195 13 308.9 309.7 289.2 321.6 4.05 9 700 3134 6.0 -4.0 49 10.0 1.2 210 19 309.1 309.9 289.3 321.8 4.06 10 697 3169 5.6 -4.4 49 10.0 0.8 210 20 309.1 309.8 289.2 321.5 3.96 11 662 3588 5.0 -31.0 5 36.0 -4.7 203 20 313.0 313.1 286.9 314.5 0.43 12 594 4459 -1.7 -34.7 6 33.0 -9.2 207 23 315.1 315.1 287.5 316.3 0.34 13 506 5718 -7.9 -46.9 3 39.0 -14.3 187 22 322.3 322.3 289.6 322.7 0.11 14 500 5810 -8.7 -47.7 3 39.0 -14.9 180 19 322.4 322.5 289.6 322.8 0.10 15 429 6973 -18.3 -49.3 5 31.0 -22.1 203 28 324.6 324.7 290.3 325.0 0.10 16 413 7255 -21.1 -36.1 25 15.0 -23.6 205 29 324.6 324.7 290.6 326.1 0.42 17 400 7490 -22.3 -43.3 13 21.0 -25.1 225 29 326.0 326.0 290.8 326.8 0.21 18 353 8398 -30.3 -49.3 14 19.0 -31.9 225 28 327.1 327.1 291.0 327.6 0.12 19 300 9540 -38.7 -59.7 9 21.0 -39.6 210 26 330.8 330.8 292.0 331.0 0.04 20 266 10350 -44.9 -63.9 10 19.0 -45.5 214 24 333.3 333.4 292.6 333.5 0.03 21 250 10760 -48.1 -63.1 16 15.0 -48.5 205 29 334.6 334.6 293.0 334.7 0.03 22 207 11983 -57.5 -67.5 27 10.0 -57.6 225 34 338.4 338.4 293.9 338.5 0.02 23 200 12200 -58.5 -68.5 27 10.0 -58.6 225 43 340.1 340.1 294.4 340.2 0.02 24 185 12687 -60.1 -73.1 17 13.0 -60.2 230 48 345.2 345.2 295.6 345.2 0.01 25 176 12998 -59.5 -75.5 11 16.0 -59.7 234 51 351.1 351.1 296.9 351.2 0.01 26 163 13476 -60.8 -78.8 8 17.9 -61.0 220 59 356.7 356.7 298.0 356.7 0.00 27 150 13990 -62.3 -82.3 5 20.0 -62.4 215 36 362.8 362.8 299.2 362.8 0.00 28 122 15248 -67.9 -85.9 6 18.0 -68.0 235 31 374.6 374.6 301.4 374.6 0.00 29 100 16440 -68.9 -86.9 6 18.0 -69.0 245 21 394.6 394.6 304.5 394.6 0.00 30 83 17545 -71.5 -87.5 7 16.0 -71.6 217 19 410.9 410.9 306.6 410.9 0.00 31 73 18308 -67.7 -87.7 4 20.0 -67.8 189 18 434.3 434.3 309.3 434.3 0.00 32 70 18560 -68.1 -88.1 4 20.0 -68.2 180 17 438.7 438.7 309.7 438.7 0.00 33 61 19386 -69.7 -89.7 4 20.0 -69.8 147 14 452.7 452.7 311.1 452.8 0.00 34 50 20590 -64.3 -89.3 2 25.0 -64.6 100 10 492.0 492.0 314.4 492.0 0.00 35 47 20970 -62.3 -88.3 2 26.0 -62.7 92 10 505.5 505.5 315.4 505.6 0.00 36 30 23770 -58.3 -86.3 2 28.0 -59.4 35 14 585.7 585.7 319.9 585.8 0.01 37 26 24671 -58.1 -86.1 2 28.0 -59.4 610.7 610.7 321.1 610.8 0.01 38 21 26040 -50.5 -82.5 1 32.0 -53.7 672.2 672.2 323.5 672.3 0.02 TRP 122 15248 -67.9 -85.9 6 18.0 -68.0 235 31 374.6 374.6 301.4 374.6 0.00 WND 163 13476 -60.8 -78.8 8 17.9 -61.0 220 59 356.7 356.7 298.0 356.7 0.00 Sounding variables and indices 1000-500 mb thick: 5691.00 m Freezing level: 611.25 mb = 4238.32 m = 13905.08 ft Wetbulb zero: 691.66 mb = 3231.61 m = 10602.28 ft Precipitable water: 1.30 inches Sfc-500 mean rel hum: 43.62 % Est. max temperature: 27.57 C = 81.63 F Sfc-Lift cond lev (LCL): 951.63 mb = 548.30 m = 1798.88 ft T: 19.29 C 700-500 lapse rate: 5.49 C/km ThetaE index: 21.43 C Layer 1009.0- 700.0 mb Conv cond level (CCL): 924.25 mb = 800.94 m = 2627.73 ft Mean mixing ratio: 13.59 g/kg Conv temperature: 25.07 C = 77.12 F Cap Strength: 1.67 C Lifted Index: -0.11 C Risk: Thunderstorms probable Lifted Index @300 mb: -2.04 C Lifted Index @700 mb: -0.29 C Showalter Index: 1.94 C Risk: Showers probable Total Totals Index: 43.00 C Risk: None Vertical Totals Index: 22.10 C Cross Totals Index: 20.90 C K Index: 24.30 Risk: 20-40 % chance of thunderstorms Sweat Index: 189.40 Risk: None Energy Index: -1.55 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 433.51 J/kg Max Up Vert Vel: 29.45 m/s Conv Inhibition (B-): 1.33 J/kg Cap Strength: 1.62 C Lift Cond Lev (LCL): 933.16 mb = 717.91 m = 2355.32 ft Lev Free Conv (LFC): 908.16 mb = 950.49 m = 3118.37 ft Equ Level (EL): 818.16 mb = 1834.07 m = 6017.23 ft B at Equ Level: 13.86 J/kg Max Parcel Lev (MPL): 778.16 mb = 2254.18 m = 7395.53 ft Wind level data Storm motion: 222 at 12 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 1013 5 155 5 -2.1 4.5 | 68 11 -10.0 -4.1 1 1000 119 115 5 -4.5 2.1 | 62 14 -12.4 -6.5 2 925 794 70 10 -9.4 -3.4 | 55 21 -17.3 -12.0 3 912 914 60 9 -7.8 -4.5 | 50 20 -15.7 -13.1 4 880 1219 60 14 -12.1 -7.0 | 52 25 -20.0 -15.6 5 850 1513 45 12 -8.5 -8.5 | 44 24 -16.3 -17.1 6 849 1524 50 11 -8.4 -7.1 | 46 23 -16.3 -15.7 7 818 1829 20 10 -3.4 -9.4 | 32 21 -11.3 -18.0 8 789 2134 10 3 -0.5 -3.0 | 36 14 -8.4 -11.6 9 734 2743 185 10 0.9 10.0 | 101 7 -7.0 1.3 10 707 3048 210 17 8.5 14.7 | 186 6 0.6 6.1 11 700 3134 210 19 9.5 16.5 | 192 8 1.6 7.8 12 681 3353 210 23 11.5 19.9 | 198 12 3.6 11.3 13 655 3658 200 19 6.5 17.9 | 172 9 -1.4 9.2 14 607 4267 210 21 10.5 18.2 | 195 10 2.6 9.6 15 562 4877 200 27 9.2 25.4 | 185 17 1.4 16.7 16 521 5486 210 21 10.5 18.2 | 195 10 2.6 9.6 17 501 5791 180 22 0.0 22.0 | 150 16 -7.9 13.4 18 500 5810 180 19 0.0 19.0 | 143 13 -7.9 10.4 19 481 6096 175 19 -1.7 18.9 | 137 14 -9.5 10.3 20 462 6401 200 26 8.9 24.4 | 184 16 1.0 15.8 21 409 7315 205 29 12.3 26.3 | 194 18 4.4 17.7 22 400 7490 225 29 20.5 20.5 | 227 17 12.6 11.9 23 393 7620 225 31 21.9 21.9 | 227 19 14.1 13.3 24 345 8534 225 27 19.1 19.1 | 227 15 11.2 10.5 25 331 8839 210 37 18.5 32.0 | 204 26 10.6 23.4 26 300 9540 210 26 13.0 22.5 | 200 15 5.1 13.9 27 278 10058 220 20 12.9 15.3 | 217 8 5.0 6.7 28 250 10760 205 29 12.3 26.3 | 194 18 4.4 17.7 29 242 10973 200 28 9.6 26.3 | 186 18 1.7 17.7 30 220 11582 235 31 25.4 17.8 | 242 20 17.5 9.2 31 210 11887 225 31 21.9 21.9 | 227 19 14.1 13.3 32 200 12200 225 43 30.4 30.4 | 226 31 22.5 21.8 33 173 13106 235 52 42.6 29.8 | 239 41 34.7 21.2 34 163 13476 220 59 37.9 45.2 | 219 47 30.1 36.6 35 157 13716 220 59 37.9 45.2 | 219 47 30.1 36.6 36 150 13990 215 36 20.6 29.5 | 212 24 12.8 20.9 37 149 14021 210 54 27.0 46.8 | 207 43 19.1 38.1 38 142 14326 225 30 21.2 21.2 | 227 18 13.4 12.6 39 135 14630 245 38 34.4 16.1 | 254 28 26.6 7.4 40 122 15240 235 30 24.6 17.2 | 243 19 16.7 8.6 41 122 15248 235 31 25.4 17.8 | 242 20 17.5 9.2 42 105 16154 235 40 32.8 22.9 | 240 29 24.9 14.3 43 100 16440 245 21 19.0 8.9 | 269 11 11.2 0.2 44 95 16764 245 21 19.0 8.9 | 269 11 11.2 0.2 45 70 18560 180 17 0.0 17.0 | 137 11 -7.9 8.4 46 50 20590 100 10 -9.8 1.7 | 69 19 -17.7 -6.9 47 30 23770 35 14 -8.0 -11.5 | 38 26 -15.9 -20.1 Wind Parameters Mean winds (0-6000m): 192.3 at 15.6 knts Storm direction: 222.3 at 11.7 knts Shear (0-3000m) pos: 3.7 neg: 1.8 tot: 5.5 10-3/s Storm rel Dir Shear (0-3000m): 105.1 deg Storm rel helicity (0-3000m) pos: 80.2 neg: -74.3 tot: 5.8 m^2/s^2 ave: 1.9 10^-3 m/s^2 rel: 0.19 Storm rel vorticity (0-3000m) horiz: 10.5 stream: 2.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 12.17 Bulk Shear: 35.61 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 ------------------------------------------------------------------------------- 500 105 6 63 15| 0.0 7.6 7.6| 0.0 -5.9 -5.9 -11.8 -0.22| 7.6 -1.7 1000 82 8 58 18| 0.0 6.2 6.2| 0.6 -25.7 -25.1 -25.1 -0.37| 7.3 -2.7 1500 69 9 54 20| 0.0 5.0 5.0| 3.7 -48.0 -44.3 -29.5 -0.38| 7.3 -2.8 2000 59 9 50 21| 0.0 2.7 2.7| 5.0 -74.3 -69.4 -34.7 -0.40| 7.9 -3.2 2500 60 9 50 20| 2.1 2.1 4.3| 48.1 -74.3 -26.3 -10.5 -0.05| 8.9 -0.4 3000 75 9 56 20| 3.7 1.8 5.5| 80.2 -74.3 5.8 1.9 0.19| 10.5 2.0 4000 165 12 104 11| 2.7 0.8 3.5| 90.9 -86.1 4.8 1.2 0.17| 9.6 1.6 5000 190 14 134 8| 2.5 0.3 2.8| 97.0 -94.1 2.9 0.6 0.15| 8.7 1.3 6000 192 16 145 8| 1.7 0.8 2.5|102.6-133.0 -30.4 -5.1 0.02| 8.8 0.2 Wrote GIF file: /home/apache/climate/data/raob//YBBN/skewt/YBBN.skewt.20251207.23.gif