UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121212.upa.cvt Date: 1200Z 12 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 12 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 1014 61 13.0 10.5 85 2.5 11.6 135 7 285.0 286.4 284.1 306.8 7.88 1 1000 166 12.8 10.2 84 2.6 11.3 140 9 286.0 287.3 284.5 307.7 7.83 2 925 818 10.8 4.8 66 6.0 7.6 215 15 290.4 291.4 284.2 307.0 5.83 3 850 1514 5.2 1.5 77 3.7 3.4 205 21 291.6 292.5 283.8 306.1 5.02 4 700 3069 -4.9 -9.4 71 4.5 -6.5 195 29 297.1 297.5 283.5 305.2 2.68 5 500 5640 -18.3 -30.3 34 12.0 -20.5 205 36 310.7 310.8 286.4 312.8 0.62 6 400 7270 -29.3 -38.3 41 9.0 -30.4 205 35 316.9 317.0 288.2 318.2 0.35 7 300 9270 -43.7 -50.7 46 7.0 -44.0 190 27 323.8 323.8 290.0 324.2 0.12 8 250 10470 -54.7 -61.7 42 7.0 -54.8 200 27 324.7 324.8 290.2 324.9 0.04 9 208 11620 -64.1 -69.1 50 5.0 -64.1 175 35 327.6 327.6 291.0 327.6 0.02 10 200 11860 -63.9 -68.1 56 4.2 -64.0 195 36 331.6 331.6 292.2 331.6 0.02 11 150 13640 -59.5 -81.5 4 22.0 -59.7 210 46 367.6 367.6 300.1 367.6 0.00 12 100 16160 -62.9 -91.9 1 29.0 -63.1 220 21 406.2 406.2 306.0 406.2 0.00 TRP 208 11620 -64.1 -69.1 50 5.0 -64.1 175 35 327.6 327.6 291.0 327.6 0.02 WND Sounding variables and indices 1000-500 mb thick: 5474.00 m Freezing level: 772.77 mb = 2314.59 m = 7593.72 ft Wetbulb zero: 799.11 mb = 2008.47 m = 6589.40 ft Precipitable water: 0.80 inches Sfc-500 mean rel hum: 63.74 % Est. max temperature: 19.37 C = 66.87 F Sfc-Lift cond lev (LCL): 976.60 mb = 364.01 m = 1194.24 ft T: 12.19 C 700-500 lapse rate: 5.21 C/km ThetaE index: 2.55 C Layer 925.0- 500.0 mb Conv cond level (CCL): 860.84 mb = 1409.70 m = 4624.93 ft Mean mixing ratio: 6.84 g/kg Conv temperature: 19.43 C = 66.97 F Cap Strength: 2.56 C Lifted Index: 5.70 C Risk: None Lifted Index @300 mb: 11.83 C Lifted Index @700 mb: 0.53 C Showalter Index: 6.52 C Risk: None Total Totals Index: 43.30 C Risk: None Vertical Totals Index: 23.50 C Cross Totals Index: 19.80 C K Index: 20.50 Risk: 20-40 % chance of thunderstorms Sweat Index: 96.00 Risk: None Energy Index: 1.35 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.29 J/kg Max Up Vert Vel: 4.31 m/s Conv Inhibition (B-): 9564.81 J/kg Cap Strength: 5.54 C Lift Cond Lev (LCL): 904.60 mb = 1001.57 m = 3285.97 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 231 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 1014 61 135 7 -4.9 4.9 | 69 22 -20.4 -7.8 1 1000 166 140 9 -5.8 6.9 | 75 22 -21.2 -5.8 2 925 818 215 15 8.6 12.3 | 87 7 -6.8 -0.4 3 850 1514 205 21 8.9 19.0 | 134 9 -6.6 6.3 4 700 3069 195 29 7.5 28.0 | 153 17 -7.9 15.3 5 500 5640 205 36 15.2 32.6 | 179 20 -0.2 19.9 6 400 7270 205 35 14.8 31.7 | 178 19 -0.6 19.0 7 300 9270 190 27 4.7 26.6 | 142 18 -10.7 13.9 8 250 10470 200 27 9.2 25.4 | 154 14 -6.2 12.7 9 208 11620 175 35 -3.1 34.9 | 140 29 -18.5 22.2 10 200 11860 195 36 9.3 34.8 | 165 23 -6.1 22.1 11 150 13640 210 46 23.0 39.8 | 196 28 7.6 27.1 12 100 16160 220 21 13.5 16.1 | 150 4 -1.9 3.4 Wind Parameters Mean winds (0-6000m): 200.6 at 26.7 knts Storm direction: 230.6 at 20.0 knts Shear (0-3000m) pos: 2.9 neg: 2.3 tot: 5.2 10-3/s Storm rel Dir Shear (0-3000m): 83.4 deg Storm rel helicity (0-3000m) pos: 60.8 neg: -0.6 tot: 60.2 m^2/s^2 ave: 20.1 10^-3 m/s^2 rel: 0.48 Storm rel vorticity (0-3000m) horiz: 5.9 stream: 2.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.18 Bulk Shear: 52.16 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 ------------------------------------------------------------------------------- 500 161 10 81 19| 10.1 0.0 10.1| 36.5 0.0 36.5 73.0 0.61| 11.7 7.2 1000 193 13 88 13| 8.7 0.0 8.7| 41.2 -0.6 40.6 40.6 0.43| 10.7 4.6 1500 200 15 96 10| 5.8 1.6 7.4| 49.2 -0.6 48.6 32.4 0.51| 8.8 4.4 2000 201 17 107 10| 4.3 2.0 6.3| 53.8 -0.6 53.2 26.6 0.51| 7.3 3.8 2500 201 18 117 10| 3.5 2.2 5.6| 57.8 -0.6 57.2 22.9 0.50| 6.5 3.2 3000 199 20 125 11| 2.9 2.3 5.2| 60.8 -0.6 60.2 20.1 0.48| 5.9 2.8 4000 199 23 136 12| 2.6 1.7 4.3| 76.2 -0.6 75.6 18.9 0.52| 4.9 2.5 5000 199 25 146 13| 2.4 1.4 3.8| 92.7 -0.6 92.1 18.4 0.56| 4.2 2.4 6000 201 27 154 14| 2.2 1.2 3.4|102.7 -1.2 101.6 16.9 0.57| 3.7 2.1 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251212.12.gif