UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122500.upa.cvt Date: 0000Z 25 DEC 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:0000Z 25 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 1013 103 4.8 -2.2 60 7.0 2.0 45 21 276.9 277.5 274.5 285.8 3.21 1 1000 200 5.6 0.6 70 5.0 3.4 50 21 278.8 279.4 276.5 289.8 3.99 2 925 831 0.0 -1.2 92 1.2 -0.5 50 38 279.3 280.0 276.6 289.8 3.78 3 850 1503 -0.9 -33.9 6 33.0 -7.2 55 48 285.2 285.2 274.6 286.0 0.26 4 700 3025 -10.9 -19.9 47 9.0 -13.1 45 48 290.4 290.6 278.6 293.9 1.12 5 500 5540 -24.5 -46.5 11 22.0 -26.5 35 56 303.2 303.2 282.8 303.6 0.12 6 400 7120 -36.1 -56.1 11 20.0 -37.0 35 73 308.1 308.1 284.7 308.3 0.05 7 300 9060 -50.5 -67.5 12 17.0 -50.8 45 73 314.2 314.2 286.8 314.2 0.01 8 250 10240 -55.5 -76.5 6 21.0 -55.7 40 66 323.6 323.6 289.8 323.6 0.00 9 228 10825 -57.9 -78.9 5 21.0 -58.0 50 66 328.5 328.5 291.3 328.5 0.00 10 200 11660 -54.1 -83.1 2 29.0 -54.4 45 46 347.1 347.1 296.0 347.1 0.00 11 150 13510 -53.1 -85.1 1 32.0 -53.5 45 29 378.6 378.6 302.0 378.6 0.00 12 100 16100 -54.3 -85.3 1 31.0 -54.9 5 17 422.8 422.8 308.0 422.8 0.00 TRP 228 10825 -57.9 -78.9 5 21.0 -58.0 50 66 328.5 328.5 291.3 328.5 0.00 WND Sounding variables and indices 1000-500 mb thick: 5340.00 m Freezing level: 925.00 mb = 831.00 m = 2726.34 ft Wetbulb zero: 934.84 mb = 745.32 m = 2445.25 ft Precipitable water: 0.29 inches Sfc-500 mean rel hum: 37.31 % Est. max temperature: 12.04 C = 53.67 F Sfc-Lift cond lev (LCL): 909.25 mb = 967.49 m = 3174.13 ft T: -0.18 C 700-500 lapse rate: 5.41 C/km ThetaE index: 3.77 C Layer 850.0- 700.0 mb Conv cond level (CCL): 816.60 mb = 1817.23 m = 5961.97 ft Mean mixing ratio: 3.76 g/kg Conv temperature: 14.21 C = 57.58 F Cap Strength: 5.08 C Lifted Index: 12.16 C Risk: None Lifted Index @300 mb: 17.57 C Lifted Index @700 mb: 5.08 C Showalter Index: 14.74 C Risk: None Total Totals Index: 14.20 C Risk: None Vertical Totals Index: 23.60 C Cross Totals Index: -9.40 C K Index: -19.30 Risk: None Sweat Index: 152.00 Risk: None Energy Index: 3.67 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.89 J/kg Max Up Vert Vel: 2.79 m/s Conv Inhibition (B-): 16621.83 J/kg Cap Strength: 12.09 C Lift Cond Lev (LCL): 911.33 mb = 949.29 m = 3114.43 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 74 at 36 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 1013 103 45 21 -14.8 -14.8 | 284 20 19.6 -4.7 1 1000 200 50 21 -16.1 -13.5 | 280 19 18.4 -3.4 2 925 831 50 38 -29.1 -24.4 | 339 15 5.4 -14.3 3 850 1503 55 48 -39.3 -27.5 | 15 18 -4.8 -17.4 4 700 3025 45 48 -33.9 -33.9 | 359 24 0.6 -23.8 5 500 5540 35 56 -32.1 -45.9 | 356 36 2.4 -35.7 6 400 7120 35 73 -41.9 -59.8 | 8 50 -7.4 -49.7 7 300 9060 45 73 -51.6 -51.6 | 22 45 -17.1 -41.5 8 250 10240 40 66 -42.4 -50.6 | 11 41 -7.9 -40.4 9 228 10825 50 66 -50.6 -42.4 | 26 36 -16.1 -32.3 10 200 11660 45 46 -32.5 -32.5 | 355 22 2.0 -22.4 11 150 13510 45 29 -20.5 -20.5 | 307 17 14.0 -10.4 12 100 16100 5 17 -1.5 -16.9 | 282 34 33.0 -6.8 Wind Parameters Mean winds (0-6000m): 43.6 at 47.9 knts Storm direction: 73.6 at 35.9 knts Shear (0-3000m) pos: 4.7 neg: 1.4 tot: 6.1 10-3/s Storm rel Dir Shear (0-3000m): 75.1 deg Storm rel helicity (0-3000m) pos: 108.3 neg: -38.6 tot: 69.7 m^2/s^2 ave: 23.2 10^-3 m/s^2 rel: 0.50 Storm rel vorticity (0-3000m) horiz: 6.5 stream: 3.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.06 Bulk Shear: 69.50 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 50 25 292 16| 11.4 0.0 11.4| 41.1 -5.1 36.0 72.0 0.69| 13.0 9.0 1000 50 31 314 14| 11.0 0.0 11.0| 81.8 -5.1 76.7 76.7 0.83| 11.9 9.8 1500 52 36 334 14| 9.4 0.0 9.4|108.3 -7.2 101.2 67.4 0.82| 10.3 8.4 2000 52 39 345 14| 7.1 0.7 7.8|108.3 -17.7 90.7 45.3 0.69| 8.4 5.8 2500 51 41 351 16| 5.7 1.1 6.8|108.3 -28.8 79.6 31.8 0.58| 7.3 4.2 3000 50 42 353 17| 4.7 1.4 6.1|108.3 -38.6 69.7 23.2 0.50| 6.5 3.2 4000 48 44 355 19| 3.5 1.6 5.1|108.3 -40.5 67.8 17.0 0.44| 5.5 2.4 5000 46 46 356 22| 2.8 1.7 4.6|108.3 -46.1 62.2 12.4 0.38| 4.9 1.9 6000 44 48 357 25| 2.4 2.0 4.3|143.9 -49.6 94.3 15.7 0.38| 4.8 1.8 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20251225.00.gif