UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122512.upa.cvt Date: 1200Z 25 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 25 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 1011 61 3.0 0.1 81 2.9 1.8 100 7 275.3 275.9 274.3 285.7 3.81 1 1000 136 2.2 -0.8 81 3.0 1.0 100 7 275.4 276.0 274.1 285.2 3.60 2 925 760 -1.5 -8.5 59 7.0 -3.8 135 9 277.8 278.1 273.4 283.9 2.17 3 850 1426 -7.5 -9.9 83 2.4 -8.2 115 17 278.3 278.6 273.6 284.3 2.12 4 700 2944 -10.7 -12.7 85 2.0 -11.3 175 35 290.6 291.0 279.9 296.8 2.05 5 500 5450 -26.5 -34.5 47 8.0 -27.5 185 50 300.7 300.8 282.2 302.1 0.41 6 400 7030 -38.1 -52.1 22 14.0 -38.8 185 58 305.5 305.5 283.7 305.8 0.08 7 366 7630 -41.8 -56.4 19 14.6 -42.3 180 62 308.4 308.4 284.8 308.6 0.05 8 300 8940 -50.1 -66.1 14 16.0 -50.4 175 52 314.7 314.7 287.0 314.8 0.02 9 284 9300 -51.7 -68.7 11 17.0 -52.0 180 42 317.4 317.4 287.9 317.5 0.01 10 250 10130 -53.5 -74.5 6 21.0 -53.8 170 27 326.5 326.5 290.7 326.6 0.01 11 200 11560 -52.5 -83.5 1 31.0 -52.9 200 9 349.6 349.6 296.5 349.6 0.00 12 150 13420 -52.3 -84.3 1 32.0 -52.8 75 11 380.0 380.0 302.2 380.0 0.00 13 100 16040 -52.1 -84.1 1 32.0 -52.8 45 5 427.1 427.1 308.5 427.1 0.00 TRP 284 9300 -51.7 -68.7 11 17.0 -52.0 180 42 317.4 317.4 287.9 317.5 0.01 WND 366 7630 -41.8 -56.4 19 14.6 -42.3 180 62 308.4 308.4 284.8 308.6 0.05 Sounding variables and indices 1000-500 mb thick: 5314.00 m Freezing level: 955.41 mb = 507.03 m = 1663.45 ft Wetbulb zero: 985.06 mb = 256.50 m = 841.54 ft Precipitable water: 0.40 inches Sfc-500 mean rel hum: 72.20 % Est. max temperature: 5.94 C = 42.69 F Sfc-Lift cond lev (LCL): 966.55 mb = 408.28 m = 1339.48 ft T: 0.59 C 700-500 lapse rate: 6.30 C/km ThetaE index: 1.75 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 871.97 mb = 1224.98 m = 4018.92 ft Mean mixing ratio: 2.87 g/kg Conv temperature: 5.87 C = 42.56 F Cap Strength: 8.62 C Lifted Index: 13.85 C Risk: None Lifted Index @300 mb: 21.42 C Lifted Index @700 mb: 8.62 C Showalter Index: 14.09 C Risk: None Total Totals Index: 35.60 C Risk: None Vertical Totals Index: 19.00 C Cross Totals Index: 16.60 C K Index: 7.10 Risk: None Sweat Index: 84.00 Risk: None Energy Index: 3.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.97 J/kg Max Up Vert Vel: 3.15 m/s Conv Inhibition (B-): 18432.10 J/kg Cap Strength: 13.77 C Lift Cond Lev (LCL): 892.28 mb = 1043.69 m = 3424.14 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 203 at 24 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 1011 61 100 7 -6.9 1.2 | 38 27 -16.5 -21.0 1 1000 136 100 7 -6.9 1.2 | 38 27 -16.5 -21.0 2 925 760 135 9 -6.4 6.4 | 45 22 -15.9 -15.8 3 850 1426 115 17 -15.4 7.2 | 59 29 -25.0 -15.0 4 700 2944 175 35 -3.1 34.9 | 135 18 -12.6 12.7 5 500 5450 185 50 4.4 49.8 | 169 28 -5.2 27.6 6 400 7030 185 58 5.1 57.8 | 173 36 -4.5 35.6 7 366 7630 180 62 0.0 62.0 | 166 41 -9.6 39.8 8 300 8940 175 52 -4.5 51.8 | 155 33 -14.1 29.6 9 284 9300 180 42 0.0 42.0 | 154 22 -9.6 19.8 10 250 10130 170 27 -4.7 26.6 | 107 15 -14.3 4.4 11 200 11560 200 9 3.1 8.5 | 25 15 -6.5 -13.7 12 150 13420 75 11 -10.6 -2.8 | 39 32 -20.2 -25.0 13 100 16040 45 5 -3.5 -3.5 | 27 29 -13.1 -25.7 Wind Parameters Mean winds (0-6000m): 173.3 at 32.2 knts Storm direction: 203.3 at 24.2 knts Shear (0-3000m) pos: 5.8 neg: 1.1 tot: 6.9 10-3/s Storm rel Dir Shear (0-3000m): 99.0 deg Storm rel helicity (0-3000m) pos: 254.7 neg: 0.0 tot: 254.7 m^2/s^2 ave: 84.9 10^-3 m/s^2 rel: 0.85 Storm rel vorticity (0-3000m) horiz: 8.2 stream: 6.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.04 Bulk Shear: 115.27 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 ------------------------------------------------------------------------------- 500 111 8 40 26| 3.5 0.0 3.5| 15.5 0.0 15.5 31.1 0.66| 3.6 2.4 1000 122 9 44 24| 3.6 0.0 3.6| 40.7 0.0 40.7 40.7 0.69| 4.8 3.3 1500 120 11 49 25| 2.4 2.1 4.5| 76.5 0.0 76.5 51.0 0.69| 5.6 3.9 2000 125 14 55 25| 4.1 1.6 5.7|141.2 0.0 141.2 70.6 0.78| 6.7 5.2 2500 136 16 63 24| 5.2 1.3 6.5|204.3 0.0 204.3 81.7 0.82| 7.6 6.3 3000 148 19 73 20| 5.8 1.1 6.9|254.7 0.0 254.7 84.9 0.85| 8.2 6.9 4000 161 24 91 17| 5.2 0.8 6.0|283.5 0.0 283.5 70.9 0.85| 7.0 5.9 5000 168 28 110 16| 4.8 0.6 5.5|316.2 0.0 316.2 63.2 0.84| 6.3 5.2 6000 173 32 126 17| 4.3 0.6 4.9|336.4 0.0 336.4 56.1 0.81| 5.7 4.6 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251225.12.gif