UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120400.upa.cvt Date: 0000Z 4 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:0000Z 4 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 1007 61 7.8 7.5 98 0.3 7.6 195 13 280.4 281.5 280.5 298.0 6.46 1 1000 108 7.8 7.4 97 0.4 7.6 195 13 281.0 282.1 280.7 298.7 6.46 2 925 751 5.8 2.7 80 3.1 4.3 245 19 285.2 286.1 281.1 299.4 5.02 3 850 1437 1.2 -0.7 87 1.9 0.4 260 17 287.4 288.2 281.1 299.6 4.27 4 700 2971 -8.3 -9.7 90 1.4 -8.8 260 27 293.3 293.8 281.8 301.1 2.61 5 500 5500 -24.3 -26.5 82 2.2 -24.7 310 38 303.4 303.6 283.9 306.3 0.88 6 400 7090 -34.9 -37.3 79 2.4 -35.1 280 27 309.6 309.7 285.7 311.0 0.39 7 300 9030 -50.3 -53.9 66 3.6 -50.4 255 25 314.5 314.5 287.0 314.8 0.08 8 250 10200 -59.1 -63.5 57 4.4 -59.2 240 25 318.2 318.2 288.2 318.3 0.03 9 235 10584 -62.1 -66.6 55 4.5 -62.1 230 21 319.3 319.3 288.5 319.4 0.02 10 200 11580 -61.7 -67.7 45 6.0 -61.8 260 33 335.1 335.1 293.1 335.1 0.02 11 150 13370 -59.1 -69.1 26 10.0 -59.3 275 29 368.3 368.3 300.2 368.4 0.02 12 100 15910 -60.3 -89.3 1 29.0 -60.6 265 29 411.2 411.2 306.7 411.2 0.00 TRP 235 10584 -62.1 -66.6 55 4.5 -62.1 230 21 319.3 319.3 288.5 319.4 0.02 WND Sounding variables and indices 1000-500 mb thick: 5392.00 m Freezing level: 831.05 mb = 1630.77 m = 5350.23 ft Wetbulb zero: 843.91 mb = 1493.85 m = 4901.01 ft Precipitable water: 0.71 inches Sfc-500 mean rel hum: 86.72 % Est. max temperature: 14.62 C = 58.31 F Sfc-Lift cond lev (LCL): 1002.40 mb = 91.86 m = 301.36 ft T: 7.80 C 700-500 lapse rate: 6.33 C/km ThetaE index: 0.00 C Layer 1007.0--21495.8 mb Conv cond level (CCL): 891.46 mb = 1050.68 m = 3447.06 ft Mean mixing ratio: 5.64 g/kg Conv temperature: 13.61 C = 56.50 F Cap Strength: 1.68 C Lifted Index: 5.33 C Risk: None Lifted Index @300 mb: 11.00 C Lifted Index @700 mb: 1.64 C Showalter Index: 4.92 C Risk: None Total Totals Index: 49.10 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.50 C Cross Totals Index: 23.60 C K Index: 23.40 Risk: 20-40 % chance of thunderstorms Sweat Index: 74.00 Risk: None Energy Index: 1.32 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 13.81 J/kg Max Up Vert Vel: 5.26 m/s Conv Inhibition (B-): 10252.24 J/kg Cap Strength: 5.07 C Lift Cond Lev (LCL): 929.68 mb = 709.36 m = 2327.25 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 309 at 20 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 1007 61 195 13 3.4 12.6 | 154 28 -12.3 25.1 1 1000 108 195 13 3.4 12.6 | 154 28 -12.3 25.1 2 925 751 245 19 17.2 8.0 | 184 21 1.5 20.6 3 850 1437 260 17 16.7 3.0 | 184 16 1.1 15.5 4 700 2971 260 27 26.6 4.7 | 212 20 10.9 17.2 5 500 5500 310 38 29.1 -24.4 | 312 18 13.4 -11.9 6 400 7090 280 27 26.6 -4.7 | 234 13 10.9 7.8 7 300 9030 255 25 24.1 6.5 | 204 21 8.5 19.0 8 250 10200 240 25 21.7 12.5 | 193 26 6.0 25.0 9 235 10584 230 21 16.1 13.5 | 181 26 0.4 26.0 10 200 11580 260 33 32.5 5.7 | 223 25 16.8 18.3 11 150 13370 275 29 28.9 -2.5 | 233 17 13.2 10.0 12 100 15910 265 29 28.9 2.5 | 221 20 13.2 15.1 Wind Parameters Mean winds (0-6000m): 278.6 at 26.8 knts Storm direction: 308.6 at 20.1 knts Shear (0-3000m) pos: 3.4 neg: 1.1 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 60.9 deg Storm rel helicity (0-3000m) pos: 131.7 neg: -0.7 tot: 131.0 m^2/s^2 ave: 43.7 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 5.3 stream: 3.9 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.17 Bulk Shear: 80.49 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 ------------------------------------------------------------------------------- 500 213 15 163 26| 10.3 0.0 10.3| 63.6 0.0 63.6 127.3 0.90| 10.5 9.5 1000 232 17 173 23| 7.9 0.0 7.9| 87.5 0.0 87.5 87.5 0.76| 9.0 6.8 1500 241 17 177 21| 5.8 0.0 5.8| 90.4 -0.7 89.8 59.8 0.66| 7.2 4.8 2000 246 18 181 20| 4.4 0.8 5.2|103.4 -0.7 102.8 51.4 0.70| 6.2 4.3 2500 250 19 185 19| 3.5 1.3 4.8|116.4 -0.7 115.8 46.3 0.72| 5.6 4.0 3000 252 20 190 19| 3.4 1.1 4.5|131.7 -0.7 131.0 43.7 0.73| 5.3 3.9 4000 259 22 200 18| 3.8 0.8 4.6|182.2 -0.7 181.5 45.4 0.79| 5.4 4.3 5000 269 25 215 16| 4.0 0.7 4.6|235.0 -0.7 234.3 46.9 0.83| 5.6 4.7 6000 279 27 232 14| 3.6 0.9 4.5|258.3 -28.0 230.3 38.4 0.66| 5.8 3.8 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251204.00.gif