UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120811.upa.cvt Date: 1100Z 8 DEC 25 Searching for BGDH... Searching the city database file for: BGDH ... Date:1100Z 8 DEC 25 Station: BGDH WMO ident: 4320 Latitude: 76.77 Longitude: -18.67 Elevation: 12.00 ------------------------------------------------------------------------------- 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 1022 12 -25.3 -27.9 79 2.6 -25.5 315 1 246.3 246.4 246.2 247.3 0.38 1 1003 148 -23.7 -25.5 85 1.8 -23.9 311 2 249.2 249.3 249.1 250.5 0.48 2 996 200 -19.5 -21.3 86 1.8 -19.8 310 2 253.9 254.0 253.7 255.8 0.70 3 982 305 -17.7 -21.1 75 3.4 -18.2 307 3 256.8 256.9 256.1 258.7 0.72 4 945 593 -15.1 -22.1 55 7.0 -16.2 300 4 262.3 262.4 260.4 264.2 0.69 5 924 762 -15.7 -24.7 46 9.0 -17.0 296 5 263.3 263.4 260.9 264.9 0.56 6 907 902 -15.1 -25.1 42 10.0 -16.6 292 6 265.4 265.4 262.4 266.9 0.55 7 850 1391 -15.9 -26.9 38 11.0 -17.5 280 9 269.5 269.6 265.3 270.9 0.50 8 826 1607 -16.5 -26.5 42 10.0 -18.0 272 9 271.1 271.2 266.4 272.6 0.53 9 812 1736 -13.3 -23.3 43 10.0 -15.2 267 9 275.8 275.9 269.9 277.9 0.72 10 794 1907 -13.7 -21.7 51 8.0 -15.3 261 10 277.1 277.3 270.9 279.6 0.85 11 774 2101 -13.3 -23.3 43 10.0 -15.2 253 10 279.6 279.7 272.2 281.9 0.76 12 748 2361 -13.7 -29.7 25 16.0 -16.3 244 10 281.9 282.0 273.1 283.3 0.44 13 700 2862 -16.9 -30.9 29 14.0 -19.0 225 11 283.8 283.8 274.0 285.1 0.42 14 634 3596 -22.7 -37.7 24 15.0 -24.3 207 13 285.3 285.4 274.6 286.1 0.23 15 583 4205 -27.7 -40.7 28 13.0 -28.8 192 15 286.4 286.4 275.1 287.0 0.19 16 500 5290 -35.7 -48.7 25 13.0 -36.4 165 19 289.5 289.5 276.6 289.8 0.09 17 494 5374 -36.1 -49.1 25 13.0 -36.7 165 19 290.0 290.0 276.8 290.3 0.09 18 470 5718 -38.7 -46.7 43 8.0 -39.1 166 17 291.0 291.0 277.3 291.4 0.12 19 460 5866 -39.9 -48.9 38 9.0 -40.3 167 17 291.3 291.3 277.4 291.6 0.10 20 444 6107 -41.3 -55.3 21 14.0 -41.8 168 16 292.5 292.5 278.0 292.6 0.05 21 400 6810 -45.9 -56.9 28 11.0 -46.2 170 13 295.3 295.3 279.3 295.5 0.04 22 300 8670 -58.1 -68.1 27 10.0 -58.2 160 11 303.4 303.4 282.8 303.5 0.01 23 272 9283 -61.1 -71.1 25 10.0 -61.2 307.7 307.7 284.5 307.8 0.01 TRP WND Sounding variables and indices 1000-500 mb thick: 5119.68 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 36.68 % Est. max temperature: -3.62 C = 25.48 F Sfc-Lift cond lev (LCL): 978.52 mb = 331.65 m = 1088.09 ft T: -17.46 C 700-500 lapse rate: 7.74 C/km ThetaE index: 0.00 C Layer 1022.0-9868188356753480989314477680259760128.0 mb Conv cond level (CCL): 1003.00 mb = 148.31 m = 486.56 ft Mean mixing ratio: 0.63 g/kg Conv temperature: -21.14 C = -6.05 F Cap Strength: 23.84 C Lifted Index: 25.28 C Risk: None Lifted Index @300 mb: 31.65 C Lifted Index @700 mb: 23.01 C Showalter Index: 15.43 C Risk: None Total Totals Index: 28.60 C Risk: None Vertical Totals Index: 19.80 C Cross Totals Index: 8.80 C K Index: -21.10 Risk: None Sweat Index: 37.00 Risk: None Energy Index: 4.10 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 68.01 J/kg Max Up Vert Vel: 11.66 m/s Conv Inhibition (B-): 8478.73 J/kg Cap Strength: 25.28 C Lift Cond Lev (LCL): 900.06 mb = 960.10 m = 3149.89 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 231 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 1022 12 315 1 0.7 -0.7 | 45 9 -6.3 -6.2 1 850 1391 280 9 8.9 -1.6 | 345 7 1.9 -7.1 2 700 2862 225 11 7.8 7.8 | 200 2 0.8 2.2 3 500 5290 165 19 -4.9 18.4 | 137 17 -11.9 12.8 4 400 6810 170 13 -2.3 12.8 | 128 12 -9.2 7.3 5 300 8670 160 11 -3.8 10.3 | 114 12 -10.7 4.8 Wind Parameters Mean winds (0-6000m): 201.5 at 11.9 knts Storm direction: 231.5 at 8.9 knts Shear (0-3000m) pos: 0.0 neg: 2.0 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): 146.3 deg Storm rel helicity (0-3000m) pos: 0.0 neg: -25.4 tot: -25.4 m^2/s^2 ave: -8.5 10^-3 m/s^2 rel: -0.84 Storm rel vorticity (0-3000m) horiz: 3.3 stream: -2.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 4.20 Bulk Shear: 16.19 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 ------------------------------------------------------------------------------- 500 265 2 42 7| 0.0 3.0 3.0| 0.0 -6.7 -6.7 -13.4 -0.99| 3.0 -3.0 1000 283 4 27 7| 0.0 3.0 3.0| 0.0 -13.4 -13.4 -13.4 -0.99| 3.1 -3.1 1500 283 5 15 7| 0.0 2.9 2.9| 0.0 -19.2 -19.2 -12.8 -0.96| 3.2 -3.1 2000 277 6 6 6| 0.0 2.4 2.4| 0.0 -21.9 -21.9 -11.0 -0.86| 3.2 -2.8 2500 268 7 359 5| 0.0 2.1 2.1| 0.0 -23.8 -23.8 -9.5 -0.84| 3.3 -2.7 3000 258 8 351 4| 0.0 2.0 2.0| 0.0 -25.4 -25.4 -8.5 -0.84| 3.3 -2.8 4000 239 9 319 1| 0.0 2.0 2.0| 0.0 -30.1 -30.1 -7.5 -0.74| 3.3 -2.4 5000 218 11 172 3| 0.0 1.9 1.9| 0.0 -44.2 -44.2 -8.8 -0.69| 3.5 -2.4 6000 201 12 155 6| 0.2 1.6 1.8| 0.0 -54.2 -54.2 -9.0 -0.66| 3.3 -2.2 Wrote GIF file: /home/apache/climate/data/raob//BGDH/skewt/BGDH.skewt.20251208.11.gif