UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120212.upa.cvt Date: 1200Z 2 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 2 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 1006 61 9.8 9.2 96 0.6 9.5 185 9 282.5 283.7 282.4 302.4 7.27 1 1000 99 9.4 9.3 99 0.1 9.3 190 11 282.5 283.8 282.5 302.8 7.36 2 925 742 5.4 5.4 100 0.0 5.4 235 13 284.8 285.9 282.1 301.8 6.08 3 850 1427 0.4 0.4 100 0.0 0.4 270 17 286.6 287.4 281.2 299.7 4.63 4 700 2963 -7.7 -7.7 100 0.0 -7.7 235 19 294.0 294.5 282.6 303.1 3.06 5 500 5490 -24.7 -29.1 67 4.4 -25.4 210 44 302.9 303.1 283.5 305.2 0.69 6 400 7080 -35.7 -38.6 75 2.9 -36.0 195 64 308.6 308.7 285.2 309.8 0.34 7 300 9010 -50.9 -57.9 43 7.0 -51.1 200 71 313.6 313.6 286.6 313.8 0.05 8 250 10170 -59.1 -65.1 46 6.0 -59.2 200 79 318.2 318.2 288.2 318.3 0.02 9 227 10772 -61.3 -67.3 45 6.0 -61.4 210 60 323.7 323.8 289.9 323.8 0.02 10 200 11560 -59.7 -69.7 26 10.0 -59.8 215 64 338.2 338.2 293.9 338.3 0.02 11 150 13390 -55.3 -67.3 21 12.0 -55.6 215 27 374.8 374.8 301.4 374.9 0.03 12 100 15950 -59.3 -86.3 2 27.0 -59.6 220 44 413.2 413.2 306.9 413.2 0.00 TRP 227 10772 -61.3 -67.3 45 6.0 -61.4 210 60 323.7 323.8 289.9 323.8 0.02 WND Sounding variables and indices 1000-500 mb thick: 5391.00 m Freezing level: 842.59 mb = 1502.85 m = 4930.56 ft Wetbulb zero: 843.11 mb = 1491.37 m = 4892.90 ft Precipitable water: 0.79 inches Sfc-500 mean rel hum: 91.95 % Est. max temperature: 13.76 C = 56.78 F Sfc-Lift cond lev (LCL): 996.96 mb = 124.12 m = 407.21 ft T: 9.24 C 700-500 lapse rate: 6.73 C/km ThetaE index: 3.07 C Layer 925.0- 700.0 mb Conv cond level (CCL): 954.30 mb = 484.83 m = 1590.63 ft Mean mixing ratio: 6.59 g/kg Conv temperature: 11.26 C = 52.26 F Cap Strength: 0.48 C Lifted Index: 2.76 C Risk: None Lifted Index @300 mb: 8.20 C Lifted Index @700 mb: 0.48 C Showalter Index: 4.46 C Risk: None Total Totals Index: 50.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.10 C Cross Totals Index: 25.10 C K Index: 25.50 Risk: 40-60 % chance of thunderstorms Sweat Index: 106.80 Risk: None Energy Index: 1.09 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 54.73 J/kg Max Up Vert Vel: 10.46 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 2.65 C Lift Cond Lev (LCL): 954.73 mb = 481.08 m = 1578.32 ft Lev Free Conv (LFC): 949.73 mb = 524.39 m = 1720.41 ft Equ Level (EL): 729.73 mb = 2633.93 m = 8641.39 ft B at Equ Level: 54.53 J/kg Max Parcel Lev (MPL): 569.73 mb = 4509.48 m = 14794.71 ft Wind level data Storm motion: 253 at 19 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 1006 61 185 9 0.8 9.0 | 101 18 -17.7 3.4 1 1000 99 190 11 1.9 10.8 | 108 17 -16.6 5.3 2 925 742 235 13 10.6 7.5 | 104 8 -7.8 1.9 3 850 1427 270 17 17.0 -0.0 | 15 6 -1.5 -5.5 4 700 2963 235 19 15.6 10.9 | 151 6 -2.9 5.4 5 500 5490 210 44 22.0 38.1 | 186 33 3.5 32.6 6 400 7080 195 64 16.6 61.8 | 178 56 -1.9 56.3 7 300 9010 200 71 24.3 66.7 | 185 61 5.8 61.2 8 250 10170 200 79 27.0 74.2 | 187 69 8.5 68.7 9 227 10772 210 60 30.0 52.0 | 194 48 11.5 46.4 10 200 11560 215 64 36.7 52.4 | 201 50 18.2 46.9 11 150 13390 215 27 15.5 22.1 | 170 17 -3.0 16.6 12 100 15950 220 44 28.3 33.7 | 199 30 9.8 28.2 Wind Parameters Mean winds (0-6000m): 223.3 at 25.7 knts Storm direction: 253.3 at 19.3 knts Shear (0-3000m) pos: 3.1 neg: 1.9 tot: 5.0 10-3/s Storm rel Dir Shear (0-3000m): 58.5 deg Storm rel helicity (0-3000m) pos: 17.3 neg: -12.1 tot: 5.2 m^2/s^2 ave: 1.7 10^-3 m/s^2 rel: 0.00 Storm rel vorticity (0-3000m) horiz: 5.7 stream: 0.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.80 Bulk Shear: 30.35 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 ------------------------------------------------------------------------------- 500 206 12 110 14| 7.8 0.0 7.8| 12.9 -0.6 12.3 24.6 0.31| 8.9 2.8 1000 224 13 109 10| 7.2 0.0 7.2| 12.9 -6.5 6.4 6.4 -0.04| 8.2 -0.3 1500 240 14 101 7| 6.3 0.0 6.3| 13.0 -12.1 0.9 0.6 -0.25| 7.6 -1.9 2000 247 15 92 5| 4.7 0.9 5.6| 14.0 -12.1 1.9 0.9 -0.16| 6.6 -1.0 2500 248 15 94 4| 3.8 1.5 5.2| 15.2 -12.1 3.1 1.2 -0.04| 6.0 -0.3 3000 246 16 105 4| 3.1 1.9 5.0| 17.3 -12.1 5.2 1.7 0.00| 5.7 0.0 4000 239 18 142 5| 2.3 2.7 5.0| 29.2 -12.1 17.1 4.3 0.11| 5.7 0.6 5000 231 22 168 8| 1.9 3.3 5.2| 30.8 -15.7 15.0 3.0 0.08| 5.7 0.5 6000 223 26 176 13| 1.6 3.9 5.5| 30.8 -38.2 -7.5 -1.2 0.03| 6.0 0.2 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251202.12.gif