UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121912.upa.cvt Date: 1200Z 19 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 19 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 1017 61 10.2 9.9 98 0.3 10.0 355 7 282.0 283.3 282.4 302.6 7.54 1 1000 185 10.0 10.0 100 0.0 10.0 5 9 283.1 284.5 283.1 304.4 7.72 2 925 831 7.0 7.0 100 0.0 7.0 30 1 286.5 287.7 283.6 305.5 6.80 3 850 1521 3.2 3.2 100 0.0 3.2 225 13 289.5 290.5 283.7 305.7 5.67 4 700 3070 -5.7 -5.7 100 0.0 -5.7 210 19 296.2 296.8 284.1 306.8 3.57 5 500 5640 -19.9 -20.3 97 0.4 -20.0 210 31 308.8 309.1 286.6 313.7 1.52 6 400 7260 -31.3 -32.5 89 1.2 -31.4 210 40 314.3 314.4 287.6 316.5 0.62 7 300 9230 -44.5 -48.4 65 3.9 -44.7 205 52 322.6 322.7 289.8 323.2 0.16 8 250 10430 -55.1 -59.0 62 3.9 -55.2 200 52 324.1 324.2 290.1 324.4 0.05 9 208 11571 -65.5 -68.3 68 2.8 -65.5 185 54 325.4 325.4 290.4 325.4 0.02 10 200 11810 -63.7 -65.8 75 2.1 -63.7 190 58 331.9 331.9 292.3 332.0 0.03 11 150 13590 -56.5 -61.0 57 4.5 -56.6 260 33 372.7 372.7 301.1 373.1 0.07 12 100 16140 -60.9 -79.9 6 19.0 -61.2 275 33 410.1 410.1 306.5 410.1 0.01 TRP 208 11571 -65.5 -68.3 68 2.8 -65.5 185 54 325.4 325.4 290.4 325.4 0.02 WND Sounding variables and indices 1000-500 mb thick: 5455.00 m Freezing level: 796.07 mb = 2077.94 m = 6817.32 ft Wetbulb zero: 796.38 mb = 2040.88 m = 6695.72 ft Precipitable water: 1.00 inches Sfc-500 mean rel hum: 99.17 % Est. max temperature: 17.04 C = 62.66 F Sfc-Lift cond lev (LCL): 1012.44 mb = 94.02 m = 308.47 ft T: 10.15 C 700-500 lapse rate: 5.53 C/km ThetaE index: 0.00 C Layer 1017.0-89129.0 mb Conv cond level (CCL): 963.96 mb = 489.11 m = 1604.66 ft Mean mixing ratio: 7.28 g/kg Conv temperature: 12.93 C = 55.28 F Cap Strength: 1.08 C Lifted Index: 5.80 C Risk: None Lifted Index @300 mb: 12.78 C Lifted Index @700 mb: 1.08 C Showalter Index: 5.22 C Risk: None Total Totals Index: 46.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.10 C Cross Totals Index: 23.10 C K Index: 26.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 95.40 Risk: None Energy Index: 1.58 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 15.78 J/kg Max Up Vert Vel: 5.62 m/s Conv Inhibition (B-): 10182.82 J/kg Cap Strength: 5.57 C Lift Cond Lev (LCL): 965.64 mb = 474.70 m = 1557.39 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 243 at 14 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 1017 61 355 7 0.6 -7.0 | 42 18 -11.9 -13.4 1 1000 185 5 9 -0.8 -9.0 | 41 20 -13.3 -15.4 2 925 831 30 1 -0.5 -0.9 | 61 15 -13.1 -7.3 3 850 1521 225 13 9.2 9.2 | 130 4 -3.4 2.8 4 700 3070 210 19 9.5 16.5 | 163 10 -3.1 10.0 5 500 5640 210 31 15.5 26.8 | 188 21 2.9 20.4 6 400 7260 210 40 20.0 34.6 | 195 29 7.4 28.2 7 300 9230 205 52 22.0 47.1 | 193 42 9.4 40.7 8 250 10430 200 52 17.8 48.9 | 187 43 5.2 42.5 9 208 11571 185 54 4.7 53.8 | 171 48 -7.9 47.4 10 200 11810 190 58 10.1 57.1 | 177 51 -2.5 50.7 11 150 13590 260 33 32.5 5.7 | 272 20 19.9 -0.7 12 100 16140 275 33 32.9 -2.9 | 295 22 20.3 -9.3 Wind Parameters Mean winds (0-6000m): 213.0 at 18.8 knts Storm direction: 243.0 at 14.1 knts Shear (0-3000m) pos: 0.6 neg: 4.0 tot: 4.6 10-3/s Storm rel Dir Shear (0-3000m): 121.3 deg Storm rel helicity (0-3000m) pos: 38.5 neg: -32.2 tot: 6.3 m^2/s^2 ave: 2.1 10^-3 m/s^2 rel: 0.18 Storm rel vorticity (0-3000m) horiz: 7.0 stream: 1.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.19 Bulk Shear: 84.75 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 7 7 45 19| 3.6 0.0 3.6| 20.3 -1.4 19.0 37.9 0.56| 7.0 3.9 1000 3 5 48 17| 1.8 1.8 3.7| 28.1 -18.6 9.5 9.5 0.09| 7.2 0.7 1500 289 6 37 11| 1.2 5.9 7.1| 33.1 -32.2 0.8 0.6 0.12| 11.6 1.4 2000 242 8 65 6| 0.9 4.9 5.9| 35.3 -32.2 3.1 1.5 0.16| 9.3 1.5 2500 229 10 90 5| 0.7 4.4 5.1| 37.2 -32.2 5.0 2.0 0.18| 7.9 1.4 3000 223 11 111 5| 0.6 4.0 4.6| 38.5 -32.2 6.3 2.1 0.18| 7.0 1.3 4000 217 14 136 6| 0.5 3.6 4.0| 47.9 -32.2 15.7 3.9 0.23| 5.9 1.3 5000 214 16 154 8| 0.4 3.4 3.7| 57.4 -32.2 25.2 5.0 0.25| 5.2 1.3 6000 213 19 166 10| 0.3 3.2 3.5| 67.7 -32.2 35.4 5.9 0.26| 4.7 1.2 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251219.12.gif