UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122000.upa.cvt Date: 0000Z 20 DEC 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:0000Z 20 DEC 25 Station: LFRB WMO ident: 7110 Latitude: 48.45 Longitude: -4.42 Elevation: 103.00 ------------------------------------------------------------------------------- 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 103 5.8 3.0 82 2.8 4.5 165 11 278.5 279.3 277.3 291.4 4.72 1 1000 146 7.6 6.9 95 0.7 7.2 170 11 280.8 281.8 280.4 297.9 6.24 2 925 787 4.4 2.4 87 2.0 3.4 200 17 283.8 284.7 280.3 297.6 4.92 3 850 1468 -1.3 -2.5 92 1.2 -1.8 205 19 284.8 285.4 279.3 295.4 3.74 4 700 2995 -8.7 -31.7 14 23.0 -12.9 215 19 292.9 292.9 278.7 294.1 0.38 5 500 5520 -23.1 -50.1 7 27.0 -25.4 165 3 304.9 304.9 283.5 305.2 0.08 6 400 7120 -34.1 -57.1 8 23.0 -35.3 360 9 310.7 310.7 285.6 310.8 0.04 7 300 9070 -47.7 -65.7 11 18.0 -48.1 355 15 318.1 318.1 288.2 318.2 0.02 8 250 10260 -55.3 -68.3 18 13.0 -55.5 360 7 323.9 323.9 289.9 323.9 0.02 9 221 11033 -59.3 -72.3 17 13.0 -59.4 260 13 329.3 329.3 291.5 329.4 0.01 10 200 11660 -55.1 -75.1 7 20.0 -55.4 255 21 345.5 345.5 295.6 345.5 0.01 11 150 13500 -53.9 -84.9 1 31.0 -54.3 260 27 377.2 377.2 301.8 377.2 0.00 TRP 221 11033 -59.3 -72.3 17 13.0 -59.4 260 13 329.3 329.3 291.5 329.4 0.01 WND Sounding variables and indices 1000-500 mb thick: 5374.00 m Freezing level: 867.11 mb = 1312.68 m = 4306.65 ft Wetbulb zero: 875.69 mb = 1228.15 m = 4029.32 ft Precipitable water: 0.46 inches Sfc-500 mean rel hum: 41.17 % Est. max temperature: 12.04 C = 53.68 F Sfc-Lift cond lev (LCL): 963.61 mb = 450.80 m = 1478.99 ft T: 6.08 C 700-500 lapse rate: 5.70 C/km ThetaE index: 3.75 C Layer 925.0- 500.0 mb Conv cond level (CCL): 913.57 mb = 887.10 m = 2910.40 ft Mean mixing ratio: 5.41 g/kg Conv temperature: 11.29 C = 52.32 F Cap Strength: 2.21 C Lifted Index: 7.64 C Risk: None Lifted Index @300 mb: 14.74 C Lifted Index @700 mb: 2.21 C Showalter Index: 9.11 C Risk: None Total Totals Index: 42.40 C Risk: None Vertical Totals Index: 21.80 C Cross Totals Index: 20.60 C K Index: -3.70 Risk: None Sweat Index: 41.00 Risk: None Energy Index: 2.03 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.60 J/kg Max Up Vert Vel: 5.93 m/s Conv Inhibition (B-): 10.37 J/kg Cap Strength: 7.49 C Lift Cond Lev (LCL): 934.38 mb = 704.02 m = 2309.75 ft Lev Free Conv (LFC): 869.38 mb = 1286.41 m = 4220.46 ft Equ Level (EL): 809.38 mb = 1853.10 m = 6079.64 ft B at Equ Level: 17.37 J/kg Max Parcel Lev (MPL): 739.38 mb = 2564.52 m = 8413.67 ft Wind level data Storm motion: 234 at 10 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 103 165 11 -2.8 10.6 | 113 12 -11.0 4.8 1 1000 146 170 11 -1.9 10.8 | 116 11 -10.1 5.0 2 925 787 200 17 5.8 16.0 | 167 10 -2.3 10.1 3 850 1468 205 19 8.0 17.2 | 179 11 -0.1 11.4 4 700 2995 215 19 10.9 15.6 | 196 10 2.7 9.7 5 500 5520 165 3 -0.8 2.9 | 72 9 -8.9 -3.0 6 400 7120 360 9 -0.0 -9.0 | 29 17 -8.2 -14.9 7 300 9070 355 15 1.3 -14.9 | 18 22 -6.9 -20.8 8 250 10260 360 7 -0.0 -7.0 | 32 15 -8.2 -12.9 9 221 11033 260 13 12.8 2.3 | 308 6 4.6 -3.6 10 200 11660 255 21 20.3 5.4 | 272 12 12.1 -0.4 11 150 13500 260 27 26.6 4.7 | 274 18 18.4 -1.2 Wind Parameters Mean winds (0-6000m): 204.3 at 13.4 knts Storm direction: 234.3 at 10.0 knts Shear (0-3000m) pos: 2.3 neg: 0.0 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 77.2 deg Storm rel helicity (0-3000m) pos: 43.7 neg: -2.2 tot: 41.6 m^2/s^2 ave: 13.9 10^-3 m/s^2 rel: 0.85 Storm rel vorticity (0-3000m) horiz: 2.9 stream: 2.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 4.75 Bulk Shear: 3.70 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 ------------------------------------------------------------------------------- 500 181 13 132 11| 7.5 0.0 7.5| 20.4 0.0 20.4 40.7 0.96| 7.6 7.3 1000 192 15 150 10| 5.8 0.0 5.8| 31.6 0.0 31.6 31.6 0.97| 5.9 5.7 1500 197 16 160 10| 4.4 0.0 4.4| 36.1 0.0 36.1 24.0 0.96| 4.5 4.3 2000 200 17 167 10| 3.5 0.0 3.5| 38.9 0.0 38.9 19.5 0.96| 3.7 3.5 2500 202 17 171 10| 2.9 0.0 2.9| 41.8 0.0 41.8 16.7 0.96| 3.2 3.0 3000 205 18 175 10| 2.3 0.0 2.3| 43.7 -2.2 41.6 13.9 0.85| 2.9 2.5 4000 205 17 174 10| 1.8 1.0 2.8| 43.7 -20.2 23.5 5.9 0.26| 3.3 0.8 5000 205 15 168 8| 1.4 1.5 2.9| 43.7 -35.5 8.3 1.7 -0.01| 3.3 -0.0 6000 204 13 157 7| 1.2 1.8 2.9| 45.0 -44.7 0.3 0.1 -0.09| 3.4 -0.3 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20251220.00.gif