UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122512.upa.cvt Date: 1200Z 25 DEC 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:1200Z 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 1009 103 -0.7 -5.7 69 5.0 -2.4 80 15 271.8 272.2 270.2 278.5 2.47 1 1000 165 0.0 -3.0 80 3.0 -1.2 80 17 273.1 273.7 272.0 281.5 3.06 2 925 783 -4.3 -5.7 90 1.4 -4.8 80 23 274.9 275.4 272.5 282.4 2.70 3 850 1443 -8.5 -8.5 100 0.0 -8.5 85 36 277.2 277.6 273.4 283.9 2.36 4 700 2933 -11.9 -41.9 6 30.0 -15.7 95 48 289.3 289.3 276.5 289.8 0.14 5 500 5420 -26.5 -48.5 11 22.0 -28.2 90 87 300.7 300.7 281.8 301.1 0.09 6 400 6990 -38.5 -54.5 17 16.0 -39.2 95 83 305.0 305.0 283.5 305.2 0.06 7 300 8930 -47.5 -74.5 3 27.0 -47.9 80 62 318.4 318.4 288.2 318.4 0.01 8 285 9267 -48.9 -74.9 3 26.0 -49.3 75 73 321.1 321.1 289.1 321.1 0.01 9 283 9314 -48.8 -75.2 3 26.4 -49.2 75 73 321.9 321.9 289.3 321.9 0.01 10 250 10130 -47.3 -80.3 1 33.0 -47.9 85 42 335.7 335.7 293.3 335.8 0.00 11 200 11590 -51.7 -83.7 1 32.0 -52.1 80 33 350.9 350.9 296.8 350.9 0.00 12 150 13450 -51.7 -83.7 1 32.0 -52.2 50 27 381.0 381.0 302.4 381.0 0.00 13 100 16070 -54.3 -85.3 1 31.0 -54.9 60 21 422.8 422.8 308.0 422.8 0.00 TRP 285 9267 -48.9 -74.9 3 26.0 -49.3 75 73 321.1 321.1 289.1 321.1 0.01 WND 283 9314 -48.8 -75.2 3 26.4 -49.2 75 73 321.9 321.9 289.3 321.9 0.01 Sounding variables and indices 1000-500 mb thick: 5255.00 m Freezing level: Surface below freezing Freezing level: 1000.00 mb = 165.00 m = 541.33 ft Freezing level: 1000.00 mb = 165.00 m = 541.33 ft Wetbulb zero: Below ground Precipitable water: 0.26 inches Sfc-500 mean rel hum: 40.61 % Est. max temperature: 4.51 C = 40.13 F Sfc-Lift cond lev (LCL): 933.03 mb = 714.46 m = 2343.99 ft T: -3.82 C 700-500 lapse rate: 5.87 C/km ThetaE index: 0.00 C Layer 1009.0-126443839488.0 mb Conv cond level (CCL): 905.52 mb = 949.16 m = 3113.99 ft Mean mixing ratio: 2.83 g/kg Conv temperature: 3.06 C = 37.51 F Cap Strength: 9.41 C Lifted Index: 15.96 C Risk: None Lifted Index @300 mb: 25.90 C Lifted Index @700 mb: 9.41 C Showalter Index: 14.38 C Risk: None Total Totals Index: 36.00 C Risk: None Vertical Totals Index: 18.00 C Cross Totals Index: 18.00 C K Index: -20.50 Risk: None Sweat Index: 159.00 Risk: None Energy Index: 3.60 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.10 J/kg Max Up Vert Vel: 3.19 m/s Conv Inhibition (B-): 19299.88 J/kg Cap Strength: 15.72 C Lift Cond Lev (LCL): 925.40 mb = 779.60 m = 2557.71 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 120 at 41 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 1009 103 80 15 -14.8 -2.6 | 319 31 20.2 -23.2 1 1000 165 80 17 -16.7 -3.0 | 322 30 18.2 -23.5 2 925 783 80 23 -22.7 -4.0 | 333 27 12.3 -24.6 3 850 1443 85 36 -35.9 -3.1 | 2 24 -0.9 -23.7 4 700 2933 95 48 -47.8 4.2 | 38 21 -12.9 -16.4 5 500 5420 90 87 -87.0 0.0 | 68 56 -52.0 -20.6 6 400 6990 95 83 -82.7 7.2 | 74 50 -47.7 -13.3 7 300 8930 80 62 -61.1 -10.8 | 40 41 -26.1 -31.3 8 285 9267 75 73 -70.5 -18.9 | 42 53 -35.5 -39.5 9 283 9314 75 73 -70.5 -18.9 | 42 53 -35.5 -39.5 10 250 10130 85 42 -41.8 -3.7 | 16 25 -6.9 -24.2 11 200 11590 80 33 -32.5 -5.7 | 355 26 2.5 -26.3 12 150 13450 50 27 -20.7 -17.4 | 339 41 14.3 -37.9 13 100 16070 60 21 -18.2 -10.5 | 332 35 16.8 -31.1 Wind Parameters Mean winds (0-6000m): 90.5 at 54.1 knts Storm direction: 120.5 at 40.6 knts Shear (0-3000m) pos: 5.2 neg: 1.1 tot: 6.3 10-3/s Storm rel Dir Shear (0-3000m): 84.4 deg Storm rel helicity (0-3000m) pos: 230.9 neg: 0.0 tot: 230.9 m^2/s^2 ave: 77.0 10^-3 m/s^2 rel: 0.94 Storm rel vorticity (0-3000m) horiz: 6.5 stream: 6.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.03 Bulk Shear: 170.33 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 80 19 325 29| 0.0 6.4 6.4| 43.6 0.0 43.6 87.1 0.90| 6.4 5.8 1000 81 22 331 28| 4.2 3.2 7.4| 97.0 0.0 97.0 97.0 0.92| 7.4 6.8 1500 82 26 338 26| 5.6 2.1 7.7|148.6 0.0 148.6 99.1 0.94| 7.8 7.3 2000 84 29 346 24| 5.3 1.6 6.9|175.2 0.0 175.2 87.6 0.94| 7.0 6.6 2500 86 32 352 23| 5.2 1.3 6.4|201.7 0.0 201.7 80.7 0.95| 6.6 6.3 3000 88 35 359 22| 5.2 1.1 6.3|230.9 0.0 230.9 77.0 0.94| 6.5 6.1 4000 90 40 15 21| 3.9 2.8 6.8|294.6 0.0 294.6 73.6 0.82| 6.9 5.7 5000 90 48 32 24| 3.1 3.9 7.0|348.9 0.0 348.9 69.8 0.70| 7.2 5.0 6000 90 54 44 28| 2.6 3.6 6.2|398.2 0.0 398.2 66.4 0.67| 6.7 4.5 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20251225.12.gif