UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 9 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 1009 61 14.4 13.2 92 1.2 13.7 145 13 286.8 288.5 286.5 313.2 9.48 1 1000 120 14.0 9.9 76 4.1 11.6 145 13 287.1 288.5 284.8 308.6 7.67 2 925 778 13.6 -1.4 35 15.0 6.4 210 42 293.2 293.9 283.1 304.2 3.73 3 850 1485 10.4 1.4 54 9.0 5.8 210 31 297.0 297.9 285.9 311.8 4.98 4 700 3087 3.8 -1.2 70 5.0 1.3 245 23 306.7 307.6 289.4 322.1 5.01 5 500 5730 -13.5 -18.5 66 5.0 -15.0 215 29 316.6 316.9 289.5 322.5 1.78 6 400 7390 -24.7 -46.7 11 22.0 -27.1 185 23 322.9 322.9 289.8 323.4 0.14 7 300 9400 -42.7 -61.7 11 19.0 -43.3 170 25 325.2 325.2 290.3 325.3 0.03 8 250 10600 -53.3 -67.3 17 14.0 -53.5 215 17 326.8 326.8 290.8 326.9 0.02 9 200 12000 -63.7 -70.7 38 7.0 -63.8 345 7 331.9 331.9 292.2 331.9 0.01 10 191 12286 -65.3 -74.3 28 9.0 -65.4 120 0 333.7 333.7 292.7 333.7 0.01 11 150 13790 -61.9 -90.9 1 29.0 -62.1 260 21 363.4 363.4 299.4 363.4 0.00 12 100 16280 -63.7 -91.7 1 28.0 -63.9 295 9 404.7 404.7 305.8 404.7 0.00 TRP 191 12286 -65.3 -74.3 28 9.0 -65.4 120 0 333.7 333.7 292.7 333.7 0.01 WND Sounding variables and indices 1000-500 mb thick: 5610.00 m Freezing level: 656.07 mb = 3667.54 m = 12032.48 ft Wetbulb zero: 683.99 mb = 3268.77 m = 10724.18 ft Precipitable water: 0.94 inches Sfc-500 mean rel hum: 62.23 % Est. max temperature: 24.17 C = 75.51 F Sfc-Lift cond lev (LCL): 991.24 mb = 194.30 m = 637.46 ft T: 13.95 C 700-500 lapse rate: 6.55 C/km ThetaE index: 9.01 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 639.45 mb = 3797.62 m = 12459.24 ft Mean mixing ratio: 5.64 g/kg Conv temperature: 37.09 C = 98.76 F Cap Strength: 9.58 C Lifted Index: 10.97 C Risk: None Lifted Index @300 mb: 13.30 C Lifted Index @700 mb: 9.58 C Showalter Index: 7.69 C Risk: None Total Totals Index: 38.80 C Risk: None Vertical Totals Index: 23.90 C Cross Totals Index: 14.90 C K Index: 20.30 Risk: 20-40 % chance of thunderstorms Sweat Index: 143.69 Risk: None Energy Index: 2.25 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 14.42 J/kg Max Up Vert Vel: 5.37 m/s Conv Inhibition (B-): 11020.67 J/kg Cap Strength: 10.86 C Lift Cond Lev (LCL): 836.65 mb = 1615.60 m = 5300.45 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 250 at 21 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 1009 61 145 13 -7.5 10.6 | 98 27 -26.9 3.6 1 1000 120 145 13 -7.5 10.6 | 98 27 -26.9 3.6 2 925 778 210 42 21.0 36.4 | 183 29 1.5 29.3 3 850 1485 210 31 15.5 26.8 | 169 20 -4.0 19.8 4 700 3087 245 23 20.8 9.7 | 207 3 1.4 2.7 5 500 5730 215 29 16.6 23.8 | 170 17 -2.8 16.7 6 400 7390 185 23 2.0 22.9 | 132 24 -17.5 15.9 7 300 9400 170 25 -4.3 24.6 | 126 30 -23.8 17.6 8 250 10600 215 17 9.8 13.9 | 125 12 -9.7 6.9 9 200 12000 345 7 1.8 -6.8 | 52 22 -17.7 -13.8 10 191 12286 120 0 -0.0 0.0 | 70 21 -19.5 -7.0 11 150 13790 260 21 20.7 3.6 | 340 4 1.2 -3.4 12 100 16280 295 9 8.2 -3.8 | 46 16 -11.3 -10.8 Wind Parameters Mean winds (0-6000m): 220.1 at 27.6 knts Storm direction: 250.1 at 20.7 knts Shear (0-3000m) pos: 4.9 neg: 0.0 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 107.7 deg Storm rel helicity (0-3000m) pos: 338.9 neg: -33.0 tot: 306.0 m^2/s^2 ave: 102.0 10^-3 m/s^2 rel: 0.61 Storm rel vorticity (0-3000m) horiz: 12.1 stream: 7.4 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.27 Bulk Shear: 53.80 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 ------------------------------------------------------------------------------- 500 174 21 123 26| 25.4 0.0 25.4|195.9 0.0 195.9 391.9 0.99| 26.9 26.8 1000 200 30 156 23| 17.6 0.0 17.6|319.7 -11.0 308.7 308.7 0.88| 23.7 21.0 1500 204 31 162 23| 9.6 0.0 9.6|320.7 -33.0 287.7 191.8 0.70| 18.3 12.8 2000 207 31 165 21| 7.3 0.0 7.3|331.1 -33.0 298.2 149.1 0.67| 15.3 10.2 2500 211 30 167 19| 5.9 0.0 5.9|336.5 -33.0 303.5 121.4 0.64| 13.4 8.5 3000 214 29 169 17| 4.9 0.0 4.9|338.9 -33.0 306.0 102.0 0.61| 12.1 7.4 4000 219 28 173 15| 3.6 0.6 4.3|338.9 -35.3 303.6 75.9 0.55| 9.7 5.3 5000 221 27 174 14| 2.9 1.1 4.0|338.9 -40.7 298.3 59.7 0.49| 8.4 4.1 6000 220 28 173 14| 2.4 1.4 3.8|338.9 -60.4 278.6 46.4 0.40| 7.6 3.0 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251209.12.gif