UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120711.upa.cvt Date: 1100Z 7 DEC 25 Searching for YBBN... Searching the city database file for: YBBN ... Date:1100Z 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 1011 5 25.4 20.7 75 4.7 22.1 125 1 297.6 300.4 294.8 342.2 15.38 1 1000 104 25.0 20.0 74 5.0 21.5 65 4 298.1 300.9 294.6 341.3 14.88 2 960 462 21.6 19.1 86 2.5 19.9 18 7 298.2 300.9 294.5 340.8 14.65 3 936 682 19.8 17.2 85 2.6 18.1 349 8 298.5 301.0 293.6 337.2 13.30 4 925 784 19.8 16.6 82 3.2 17.7 335 9 299.6 301.9 293.7 337.4 12.95 5 877 1243 17.8 15.1 84 2.7 16.0 45 11 302.1 304.4 294.0 338.7 12.40 6 850 1511 17.0 10.0 63 7.0 12.6 90 9 304.0 305.6 292.0 331.2 9.11 7 836 1653 16.2 5.2 48 11.0 9.9 114 9 304.6 305.8 290.2 324.6 6.64 8 815 1869 14.4 10.5 77 3.9 11.9 103 8 304.9 306.7 292.9 334.3 9.83 9 803 1994 13.8 6.8 63 7.0 9.6 97 7 305.5 307.0 291.4 328.9 7.74 10 700 3135 5.0 3.8 92 1.2 4.3 5 6 308.0 309.4 291.7 330.0 7.20 11 630 3986 -1.1 -1.1 100 0.0 -1.1 285 10 310.5 311.5 291.1 327.9 5.61 12 618 4139 -0.9 -0.9 100 0.0 -0.9 282 16 312.4 313.5 291.9 330.6 5.81 13 537 5247 -7.9 -7.9 100 0.0 -7.9 287 26 316.9 317.6 291.6 329.6 3.93 14 521 5482 -9.3 -11.6 83 2.3 -10.2 271 24 317.9 318.5 291.1 327.8 3.02 15 507 5693 -9.7 -13.1 76 3.4 -11.0 257 25 319.9 320.5 291.5 329.1 2.75 16 500 5800 -10.3 -13.2 79 2.9 -11.4 255 26 320.5 321.0 291.6 329.7 2.77 17 474 6211 -12.3 -15.0 80 2.7 -13.3 269 22 322.9 323.4 292.1 331.4 2.52 18 400 7490 -21.3 -23.2 85 1.9 -21.8 270 38 327.3 327.6 292.4 332.5 1.48 19 389 7694 -23.5 -24.3 93 0.8 -23.7 261 40 327.0 327.3 292.2 331.9 1.38 20 363 8198 -24.9 -26.2 89 1.3 -25.2 253 48 331.7 332.0 293.4 336.2 1.24 21 352 8420 -26.7 -27.7 91 1.0 -26.9 255 52 332.2 332.4 293.4 336.2 1.12 22 300 9550 -36.1 -38.9 75 2.8 -36.4 255 63 334.5 334.6 293.3 336.2 0.44 23 250 10790 -46.7 -50.5 65 3.8 -46.9 250 67 336.6 336.7 293.6 337.2 0.15 24 220 11618 -54.3 -58.7 58 4.4 -54.4 255 69 337.5 337.5 293.7 337.7 0.06 25 200 12220 -58.3 -64.3 46 6.0 -58.4 250 84 340.4 340.4 294.4 340.6 0.03 26 179 12913 -63.7 -67.8 57 4.1 -63.7 253 94 342.6 342.6 295.0 342.7 0.02 27 167 13337 -67.1 -71.6 53 4.5 -67.1 255 101 343.8 343.8 295.3 343.8 0.01 28 165 13410 -66.9 -72.2 48 5.2 -67.0 255 102 345.2 345.2 295.6 345.3 0.01 29 150 13990 -65.7 -76.7 20 11.0 -65.8 255 87 356.9 356.9 298.1 356.9 0.01 30 143 14280 -65.5 -79.5 13 14.0 -65.6 259 86 362.2 362.2 299.1 362.2 0.01 31 135 14632 -62.3 -81.3 6 19.0 -62.4 253 75 373.9 373.9 301.2 373.9 0.00 32 116 15552 -69.1 -84.1 10 15.0 -69.2 252 48 377.8 377.8 301.9 377.8 0.00 33 100 16440 -68.1 -85.1 7 17.0 -68.2 240 42 396.2 396.2 304.7 396.2 0.00 34 95 16748 -66.3 -84.3 6 18.0 -66.4 241 43 405.5 405.5 305.9 405.5 0.00 35 81 17695 -72.9 -86.9 10 14.0 -73.0 245 14 410.9 410.9 306.6 410.9 0.00 36 71 18466 -72.7 -87.7 9 15.0 -72.8 286 14 427.1 427.1 308.5 427.1 0.00 37 70 18550 -70.1 -87.1 7 17.0 -70.2 290 14 434.4 434.4 309.3 434.4 0.00 38 66 18904 -65.5 -86.5 4 21.0 -65.7 451.8 451.8 311.0 451.8 0.00 39 61 19380 -68.3 -87.3 5 19.0 -68.5 455.9 455.9 311.4 455.9 0.00 40 52 20351 -62.7 -86.7 3 24.0 -63.1 490.2 490.2 314.2 490.2 0.00 TRP 81 17695 -72.9 -86.9 10 14.0 -73.0 245 14 410.9 410.9 306.6 410.9 0.00 WND 165 13410 -66.9 -72.2 48 5.2 -67.0 255 102 345.2 345.2 295.6 345.3 0.01 Sounding variables and indices 1000-500 mb thick: 5696.00 m Freezing level: 642.62 mb = 3832.29 m = 12572.98 ft Wetbulb zero: 644.20 mb = 3805.73 m = 12485.83 ft Precipitable water: 1.84 inches Sfc-500 mean rel hum: 85.53 % Est. max temperature: 30.98 C = 87.77 F Sfc-Lift cond lev (LCL): 944.18 mb = 606.07 m = 1988.40 ft T: 20.42 C 700-500 lapse rate: 5.74 C/km ThetaE index: 14.06 C Layer 850.0- 815.0 mb Conv cond level (CCL): 840.81 mb = 1603.67 m = 5261.33 ft Mean mixing ratio: 14.15 g/kg Conv temperature: 32.15 C = 89.87 F Cap Strength: 1.86 C Lifted Index: -3.41 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.84 C Lifted Index @700 mb: -2.58 C Showalter Index: 0.40 C Risk: Thunderstorms probable Total Totals Index: 47.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.30 C Cross Totals Index: 20.30 C K Index: 36.10 Risk: > 80 % chance of thunderstorms Sweat Index: 164.00 Risk: None Energy Index: -0.35 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 943.84 J/kg Max Up Vert Vel: 43.45 m/s Conv Inhibition (B-): 64.93 J/kg Cap Strength: 1.81 C Lift Cond Lev (LCL): 913.95 mb = 887.49 m = 2911.68 ft Lev Free Conv (LFC): 768.95 mb = 2354.08 m = 7723.25 ft Equ Level (EL): 198.95 mb = 12252.78 m = 40198.91 ft B at Equ Level: 935.04 J/kg Max Parcel Lev (MPL): 128.95 mb = 14910.04 m = 48916.87 ft Wind level data Storm motion: 322 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 5 125 1 -0.8 0.6 | 141 11 -6.9 8.5 1 1000 104 65 4 -3.6 -1.7 | 123 11 -9.7 6.2 2 925 784 335 9 3.8 -8.2 | 83 2 -2.3 -0.3 3 911 914 350 13 2.3 -12.8 | 38 6 -3.8 -4.9 4 850 1511 90 9 -9.0 0.0 | 118 17 -15.1 7.9 5 849 1524 120 10 -8.7 5.0 | 131 20 -14.7 12.9 6 789 2134 90 6 -6.0 0.0 | 123 14 -12.1 7.9 7 700 3135 5 6 -0.5 -6.0 | 106 7 -6.6 1.9 8 631 3962 285 10 9.7 -2.6 | 214 6 3.6 5.3 9 607 4267 280 21 20.7 -3.6 | 254 15 14.6 4.2 10 584 4572 275 23 22.9 -2.0 | 251 18 16.9 5.9 11 562 4877 285 27 26.1 -7.0 | 267 20 20.0 0.9 12 541 5182 290 27 25.4 -9.2 | 274 19 19.3 -1.3 13 520 5486 270 24 24.0 -0.0 | 246 20 17.9 7.9 14 501 5791 250 26 24.4 8.9 | 228 25 18.4 16.8 15 500 5800 255 26 25.1 6.7 | 233 24 19.1 14.6 16 481 6096 260 22 21.7 3.8 | 233 20 15.6 11.7 17 462 6401 285 23 22.2 -6.0 | 263 16 16.2 1.9 18 426 7010 265 24 23.9 2.1 | 241 20 17.9 10.0 19 409 7315 280 24 23.6 -4.2 | 258 18 17.6 3.7 20 400 7490 270 38 38.0 -0.0 | 256 33 31.9 7.9 21 376 7925 250 43 40.4 14.7 | 237 41 34.4 22.6 22 331 8839 260 61 60.1 10.6 | 251 57 54.0 18.5 23 300 9550 255 63 60.9 16.3 | 246 60 54.8 24.2 24 250 10790 250 67 63.0 22.9 | 242 65 56.9 30.8 25 221 11582 255 68 65.7 17.6 | 247 65 59.6 25.5 26 200 12220 250 84 78.9 28.7 | 243 82 72.9 36.6 27 165 13410 255 102 98.5 26.4 | 250 99 92.5 34.3 28 157 13716 255 102 98.5 26.4 | 250 99 92.5 34.3 29 150 13990 255 87 84.0 22.5 | 249 84 78.0 30.4 30 142 14326 260 86 84.7 14.9 | 254 82 78.6 22.8 31 122 15240 240 52 45.0 26.0 | 229 52 39.0 33.9 32 110 15850 265 44 43.8 3.8 | 253 40 37.8 11.7 33 105 16154 275 49 48.8 -4.3 | 265 43 42.8 3.6 34 100 16440 240 42 36.4 21.0 | 226 42 30.3 28.9 35 100 16459 260 55 54.2 9.6 | 250 51 48.1 17.4 36 95 16764 240 42 36.4 21.0 | 226 42 30.3 28.9 37 81 17695 245 14 12.7 5.9 | 206 15 6.6 13.8 38 70 18550 290 14 13.2 -4.8 | 246 8 7.1 3.1 Wind Parameters Mean winds (0-6000m): 292.5 at 13.3 knts Storm direction: 322.5 at 9.9 knts Shear (0-3000m) pos: 2.4 neg: 3.4 tot: 5.9 10-3/s Storm rel Dir Shear (0-3000m): -35.5 deg Storm rel helicity (0-3000m) pos: 69.9 neg: -47.3 tot: 22.6 m^2/s^2 ave: 7.5 10^-3 m/s^2 rel: 0.03 Storm rel vorticity (0-3000m) horiz: 9.5 stream: 0.3 10^-3/s Energy-Hel index: 0.41 Bulk Rich Number: 31.29 Bulk Shear: 30.16 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 35 5 114 10| 0.0 7.6 7.6| 0.0 -21.4 -21.4 -42.8 -0.82| 9.8 -8.0 1000 357 7 96 6| 0.0 6.6 6.6| 4.4 -26.1 -21.7 -21.7 -0.43| 11.6 -5.0 1500 12 8 87 8| 5.0 4.4 9.4| 51.6 -26.1 25.4 17.0 0.09| 13.2 1.3 2000 39 8 97 11| 3.7 3.3 7.0| 69.9 -34.1 35.8 17.9 0.12| 12.0 1.5 2500 49 8 102 12| 2.9 3.5 6.4| 69.9 -43.2 26.6 10.6 0.06| 10.5 0.7 3000 46 8 103 12| 2.4 3.4 5.9| 69.9 -47.3 22.6 7.5 0.03| 9.5 0.3 4000 21 8 94 9| 1.8 3.1 4.9| 75.0 -47.5 27.5 6.9 0.11| 9.0 1.0 5000 315 11 259 1| 0.8 3.4 4.2|119.3 -50.0 69.3 13.9 0.21| 9.1 1.9 6000 292 13 246 7| 0.7 2.2 2.9|124.5-124.6 -0.1 -0.0 0.05| 9.3 0.4 Wrote GIF file: /home/apache/climate/data/raob//YBBN/skewt/YBBN.skewt.20251207.11.gif