UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122100.upa.cvt Date: 0000Z 21 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:0000Z 21 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 1002 61 10.6 9.7 94 0.9 10.1 140 9 283.6 284.9 283.2 304.4 7.55 1 1000 67 10.6 10.4 99 0.2 10.5 145 11 283.8 285.1 283.7 305.6 7.93 2 925 719 9.2 5.3 77 3.9 7.2 185 19 288.7 289.8 283.7 305.9 6.04 3 850 1411 3.2 2.6 96 0.6 2.9 200 23 289.5 290.5 283.4 305.0 5.43 4 700 2958 -6.3 -6.8 96 0.5 -6.5 195 33 295.5 296.1 283.5 305.3 3.28 5 500 5490 -22.7 -28.7 58 6.0 -23.7 195 36 305.4 305.5 284.5 307.8 0.72 6 400 7080 -35.5 -43.5 44 8.0 -36.1 200 48 308.9 308.9 285.2 309.6 0.20 7 300 9020 -52.1 -56.0 63 3.9 -52.2 200 44 311.9 311.9 286.1 312.2 0.06 8 259 9957 -57.5 -63.5 46 6.0 -57.6 195 60 317.4 317.4 287.9 317.5 0.03 9 250 10180 -57.1 -63.1 46 6.0 -57.2 200 60 321.2 321.2 289.2 321.3 0.03 10 200 11590 -54.3 -61.3 42 7.0 -54.5 195 44 346.8 346.8 296.0 347.0 0.05 11 150 13450 -50.7 -62.7 23 12.0 -51.1 210 40 382.7 382.7 302.7 383.0 0.06 12 100 16050 -56.5 -85.5 1 29.0 -56.9 245 35 418.6 418.6 307.6 418.6 0.00 TRP 259 9957 -57.5 -63.5 46 6.0 -57.6 195 60 317.4 317.4 287.9 317.5 0.03 WND Sounding variables and indices 1000-500 mb thick: 5423.00 m Freezing level: 799.47 mb = 1932.09 m = 6338.82 ft Wetbulb zero: 803.75 mb = 1856.82 m = 6091.87 ft Precipitable water: 0.83 inches Sfc-500 mean rel hum: 84.74 % Est. max temperature: 16.49 C = 61.69 F Sfc-Lift cond lev (LCL): 988.56 mb = 163.23 m = 535.54 ft T: 10.39 C 700-500 lapse rate: 6.48 C/km ThetaE index: 0.84 C Layer 850.0- 700.0 mb Conv cond level (CCL): 887.94 mb = 1053.64 m = 3456.77 ft Mean mixing ratio: 6.75 g/kg Conv temperature: 16.12 C = 61.02 F Cap Strength: 1.93 C Lifted Index: 2.36 C Risk: None Lifted Index @300 mb: 4.54 C Lifted Index @700 mb: -0.05 C Showalter Index: 2.83 C Risk: Showers probable Total Totals Index: 51.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.90 C Cross Totals Index: 25.30 C K Index: 28.00 Risk: 40-60 % chance of thunderstorms Sweat Index: 157.20 Risk: None Energy Index: 0.47 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 20.58 J/kg Max Up Vert Vel: 6.41 m/s Conv Inhibition (B-): 24.55 J/kg Cap Strength: 2.15 C Lift Cond Lev (LCL): 918.81 mb = 773.99 m = 2539.30 ft Lev Free Conv (LFC): 843.81 mb = 1469.28 m = 4820.41 ft Equ Level (EL): 683.81 mb = 3134.14 m = 10282.48 ft B at Equ Level: 20.48 J/kg Max Parcel Lev (MPL): 573.81 mb = 4453.92 m = 14612.41 ft Wind level data Storm motion: 224 at 22 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 1002 61 140 9 -5.8 6.9 | 67 23 -21.3 -9.0 1 1000 67 145 11 -6.3 9.0 | 72 23 -21.9 -6.9 2 925 719 185 19 1.7 18.9 | 102 14 -13.9 3.0 3 850 1411 200 23 7.9 21.6 | 126 10 -7.7 5.7 4 700 2958 195 33 8.5 31.9 | 156 17 -7.0 15.9 5 500 5490 195 36 9.3 34.8 | 162 20 -6.2 18.8 6 400 7080 200 48 16.4 45.1 | 182 29 0.9 29.2 7 300 9020 200 44 15.0 41.3 | 179 25 -0.5 25.4 8 259 9957 195 60 15.5 58.0 | 180 42 -0.0 42.0 9 250 10180 200 60 20.5 56.4 | 187 41 5.0 40.4 10 200 11590 195 44 11.4 42.5 | 171 27 -4.2 26.6 11 150 13450 210 40 20.0 34.6 | 193 19 4.5 18.7 12 100 16050 245 35 31.7 14.8 | 274 16 16.2 -1.2 Wind Parameters Mean winds (0-6000m): 194.3 at 29.7 knts Storm direction: 224.3 at 22.3 knts Shear (0-3000m) pos: 3.6 neg: 1.6 tot: 5.2 10-3/s Storm rel Dir Shear (0-3000m): 89.5 deg Storm rel helicity (0-3000m) pos: 99.3 neg: 0.0 tot: 99.3 m^2/s^2 ave: 33.1 10^-3 m/s^2 rel: 0.72 Storm rel vorticity (0-3000m) horiz: 5.6 stream: 4.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.42 Bulk Shear: 48.87 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 ------------------------------------------------------------------------------- 500 163 14 82 20| 11.3 0.0 11.3| 52.8 0.0 52.8 105.6 0.82| 12.0 9.9 1000 178 17 92 16| 8.8 0.0 8.8| 70.4 0.0 70.4 70.4 0.77| 9.5 7.3 1500 186 19 100 14| 7.2 0.0 7.2| 80.1 0.0 80.1 53.4 0.77| 7.9 6.1 2000 190 20 109 13| 5.4 0.9 6.2| 87.2 0.0 87.2 43.6 0.77| 6.8 5.2 2500 192 22 117 12| 4.3 1.4 5.7| 94.0 0.0 94.0 37.6 0.75| 6.1 4.5 3000 193 24 125 13| 3.6 1.6 5.2| 99.3 0.0 99.3 33.1 0.72| 5.6 4.0 4000 193 26 135 13| 2.7 1.4 4.0|102.7 0.0 102.7 25.7 0.72| 4.3 3.1 5000 194 28 142 14| 2.1 1.2 3.4|106.1 0.0 106.1 21.2 0.71| 3.6 2.5 6000 194 30 147 15| 2.2 1.0 3.2|125.6 0.0 125.6 20.9 0.71| 3.4 2.4 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251221.00.gif