UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120612.upa.cvt Date: 1200Z 6 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 6 DEC 25 Station: LFBD WMO ident: 7510 Latitude: 44.83 Longitude: -0.70 Elevation: 61.00 ------------------------------------------------------------------------------- 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 1010 61 15.6 12.2 80 3.4 13.6 250 17 287.9 289.5 286.3 312.7 8.87 1 1000 133 14.6 11.7 83 2.9 12.9 255 17 287.8 289.3 286.0 312.0 8.66 2 925 786 8.6 8.6 100 0.0 8.6 275 35 288.1 289.4 285.1 309.5 7.60 3 850 1482 4.8 2.5 85 2.3 3.7 270 48 291.2 292.1 284.1 306.7 5.39 4 700 3041 -2.1 -22.1 20 20.0 -7.7 270 42 300.2 300.3 282.7 303.2 0.93 5 500 5630 -18.9 -31.9 31 13.0 -21.2 290 69 310.0 310.1 285.9 311.8 0.53 6 400 7250 -30.3 -38.3 46 8.0 -31.2 295 81 315.6 315.7 287.7 316.9 0.35 7 300 9220 -47.5 -56.5 35 9.0 -47.8 305 87 318.4 318.4 288.3 318.6 0.06 8 272 9861 -53.1 -61.0 38 7.9 -53.2 310 99 319.3 319.3 288.6 319.5 0.04 9 250 10400 -57.9 -64.9 40 7.0 -58.0 310 99 320.0 320.0 288.8 320.1 0.02 10 200 11780 -64.9 -71.9 37 7.0 -65.0 275 87 330.0 330.0 291.7 330.0 0.01 11 187 12187 -67.5 -74.5 36 7.0 -67.5 280 95 332.2 332.2 292.3 332.2 0.01 12 150 13520 -65.7 -82.7 8 17.0 -65.8 295 64 356.9 356.9 298.1 356.9 0.00 13 100 16030 -64.9 -92.9 1 28.0 -65.1 280 33 402.3 402.3 305.5 402.3 0.00 TRP 187 12187 -67.5 -74.5 36 7.0 -67.5 280 95 332.2 332.2 292.3 332.2 0.01 WND 272 9861 -53.1 -61.0 38 7.9 -53.2 310 99 319.3 319.3 288.6 319.5 0.04 Sounding variables and indices 1000-500 mb thick: 5497.00 m Freezing level: 745.65 mb = 2566.52 m = 8420.25 ft Wetbulb zero: 801.55 mb = 1953.24 m = 6408.19 ft Precipitable water: 0.74 inches Sfc-500 mean rel hum: 49.05 % Est. max temperature: 18.43 C = 65.17 F Sfc-Lift cond lev (LCL): 960.00 mb = 474.94 m = 1558.18 ft T: 11.46 C 700-500 lapse rate: 6.49 C/km ThetaE index: 9.57 C Layer 1000.0- 500.0 mb Conv cond level (CCL): 938.26 mb = 666.81 m = 2187.68 ft Mean mixing ratio: 8.07 g/kg Conv temperature: 15.72 C = 60.29 F Cap Strength: 1.69 C Lifted Index: 2.99 C Risk: None Lifted Index @300 mb: 5.74 C Lifted Index @700 mb: 1.69 C Showalter Index: 5.51 C Risk: None Total Totals Index: 45.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 21.40 C K Index: 6.20 Risk: None Sweat Index: 195.00 Risk: None Energy Index: 1.07 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 19.38 J/kg Max Up Vert Vel: 6.23 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 2.84 C Lift Cond Lev (LCL): 939.11 mb = 659.21 m = 2162.74 ft Lev Free Conv (LFC): 934.11 mb = 703.93 m = 2309.45 ft Equ Level (EL): 804.11 mb = 1927.66 m = 6324.27 ft B at Equ Level: 19.30 J/kg Max Parcel Lev (MPL): 724.11 mb = 2769.11 m = 9084.89 ft Wind level data Storm motion: 308 at 37 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 1010 61 250 17 16.0 5.8 | 156 31 -12.7 28.6 1 1000 133 255 17 16.4 4.4 | 156 30 -12.2 27.2 2 925 786 275 35 34.9 -3.1 | 197 21 6.2 19.7 3 850 1482 270 48 48.0 -0.0 | 220 30 19.3 22.8 4 700 3041 270 42 42.0 -0.0 | 210 26 13.3 22.8 5 500 5630 290 69 64.8 -23.6 | 271 36 36.2 -0.8 6 400 7250 295 81 73.4 -34.2 | 284 46 44.8 -11.5 7 300 9220 305 87 71.3 -49.9 | 302 51 42.6 -27.1 8 272 9861 310 99 75.8 -63.6 | 311 62 47.2 -40.9 9 250 10400 310 99 75.8 -63.6 | 311 62 47.2 -40.9 10 200 11780 275 87 86.7 -7.6 | 255 60 58.0 15.2 11 187 12187 280 95 93.6 -16.5 | 264 65 64.9 6.3 12 150 13520 295 64 58.0 -27.0 | 278 30 29.4 -4.3 13 100 16030 280 33 32.5 -5.7 | 193 17 3.8 17.0 Wind Parameters Mean winds (0-6000m): 278.5 at 48.8 knts Storm direction: 308.5 at 36.6 knts Shear (0-3000m) pos: 4.1 neg: 0.7 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): 54.8 deg Storm rel helicity (0-3000m) pos: 178.9 neg: -32.7 tot: 146.2 m^2/s^2 ave: 48.7 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 6.9 stream: 3.9 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.18 Bulk Shear: 107.31 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 ------------------------------------------------------------------------------- 500 262 22 165 27| 14.1 0.0 14.1| 79.5 0.0 79.5 159.1 0.80| 14.5 11.6 1000 270 28 179 23| 13.1 0.0 13.1|144.1 0.0 144.1 144.1 0.84| 13.6 11.5 1500 270 34 193 23| 8.7 2.7 11.4|178.9 -0.1 178.8 119.2 0.79| 11.8 9.4 2000 270 37 200 24| 6.5 1.6 8.1|178.9 -11.7 167.2 83.6 0.71| 9.3 6.6 2500 270 39 204 25| 5.2 0.9 6.1|178.9 -23.3 155.7 62.3 0.63| 7.9 5.0 3000 270 39 205 25| 4.1 0.7 4.8|178.9 -32.7 146.2 48.7 0.57| 6.9 3.9 4000 271 41 210 25| 4.6 0.6 5.2|265.5 -32.7 232.7 58.2 0.67| 6.7 4.5 5000 275 45 220 25| 4.9 0.4 5.4|363.1 -32.7 330.3 66.1 0.72| 6.7 4.9 6000 278 49 232 25| 5.0 0.4 5.4|451.0 -32.7 418.3 69.7 0.74| 6.6 4.9 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251206.12.gif