UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122612.upa.cvt Date: 1200Z 26 DEC 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:1200Z 26 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 1012 103 2.6 -0.3 81 2.9 1.4 90 11 274.8 275.4 273.9 284.9 3.69 1 1000 192 2.8 1.5 91 1.3 2.2 85 13 276.0 276.7 275.4 287.5 4.26 2 950 607 1.6 1.6 100 0.0 1.6 55 23 278.8 279.6 277.3 291.2 4.52 3 925 824 7.2 -0.8 57 8.0 3.6 80 5 286.7 287.4 280.4 297.8 3.90 4 850 1513 2.8 -6.2 52 9.0 -0.8 75 15 289.1 289.6 280.1 297.4 2.83 5 700 3050 -8.9 -14.9 62 6.0 -10.7 100 15 292.6 292.9 280.4 297.9 1.72 6 500 5560 -27.3 -36.3 42 9.0 -28.3 110 31 299.8 299.8 281.7 300.9 0.34 7 400 7130 -39.5 -52.5 24 13.0 -40.1 110 19 303.7 303.7 283.0 303.9 0.07 8 300 9030 -53.9 -63.9 28 10.0 -54.1 135 11 309.4 309.4 285.1 309.5 0.02 9 250 10190 -55.1 -71.1 12 16.0 -55.3 110 25 324.1 324.2 290.0 324.2 0.01 10 200 11610 -52.1 -78.1 3 26.0 -52.5 120 33 350.3 350.3 296.7 350.3 0.00 11 150 13470 -53.1 -85.1 1 32.0 -53.5 95 19 378.6 378.6 302.0 378.6 0.00 12 100 16080 -53.7 -84.7 1 31.0 -54.3 95 15 424.0 424.0 308.2 424.0 0.00 TRP 950 607 1.6 1.6 100 0.0 1.6 55 23 278.8 279.6 277.3 291.2 4.52 WND Sounding variables and indices 1000-500 mb thick: 5368.00 m Freezing level: 814.10 mb = 1880.83 m = 6170.62 ft Wetbulb zero: 863.75 mb = 1382.21 m = 4534.74 ft Precipitable water: 0.48 inches Sfc-500 mean rel hum: 58.25 % Est. max temperature: 16.52 C = 61.74 F Sfc-Lift cond lev (LCL): 967.46 mb = 459.45 m = 1507.37 ft T: 2.03 C 700-500 lapse rate: 7.33 C/km ThetaE index: 0.46 C Layer 850.0- 700.0 mb Conv cond level (CCL): 785.11 mb = 2141.68 m = 7026.42 ft Mean mixing ratio: 4.21 g/kg Conv temperature: 18.44 C = 65.19 F Cap Strength: 6.80 C Lifted Index: 7.84 C Risk: None Lifted Index @300 mb: 12.70 C Lifted Index @700 mb: 5.73 C Showalter Index: 3.50 C Risk: None Total Totals Index: 51.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 30.10 C Cross Totals Index: 21.10 C K Index: 17.90 Risk: < 20 % chance of thunderstorms Sweat Index: 105.00 Risk: None Energy Index: 0.73 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 49.90 J/kg Max Up Vert Vel: 9.99 m/s Conv Inhibition (B-): 15737.74 J/kg Cap Strength: 7.77 C Lift Cond Lev (LCL): 921.52 mb = 854.71 m = 2804.15 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 128 at 14 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 1012 103 90 11 -11.0 0.0 | 357 9 0.4 -9.0 1 1000 192 85 13 -13.0 -1.1 | 9 10 -1.6 -10.1 2 950 607 55 23 -18.8 -13.2 | 19 23 -7.4 -22.1 3 925 824 80 5 -4.9 -0.9 | 327 12 6.5 -9.8 4 850 1513 75 15 -14.5 -3.9 | 14 13 -3.1 -12.8 5 700 3050 100 15 -14.8 2.6 | 28 7 -3.4 -6.3 6 500 5560 110 31 -29.1 10.6 | 95 18 -17.7 1.6 7 400 7130 110 19 -17.9 6.5 | 69 7 -6.5 -2.5 8 300 9030 135 11 -7.8 7.8 | 288 4 3.6 -1.2 9 250 10190 110 25 -23.5 8.6 | 88 12 -12.1 -0.4 10 200 11610 120 33 -28.6 16.5 | 114 19 -17.2 7.5 11 150 13470 95 19 -18.9 1.7 | 46 10 -7.5 -7.3 12 100 16080 95 15 -14.9 1.3 | 25 8 -3.5 -7.6 Wind Parameters Mean winds (0-6000m): 98.2 at 19.3 knts Storm direction: 128.2 at 14.5 knts Shear (0-3000m) pos: 3.4 neg: 3.4 tot: 6.8 10-3/s Storm rel Dir Shear (0-3000m): 33.2 deg Storm rel helicity (0-3000m) pos: 46.6 neg: -46.8 tot: -0.2 m^2/s^2 ave: -0.1 10^-3 m/s^2 rel: 0.07 Storm rel vorticity (0-3000m) horiz: 8.5 stream: 0.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 4.22 Bulk Shear: 11.82 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 69 17 16 16| 0.0 15.7 15.7| 12.9 -3.3 9.6 19.3 0.24| 16.4 3.9 1000 68 14 5 14| 7.7 7.8 15.5| 21.5 -46.8 -25.3 -25.3 -0.14| 18.9 -2.6 1500 70 13 4 13| 5.1 6.9 12.0| 39.5 -46.8 -7.3 -4.9 0.01| 14.8 0.2 2000 73 14 7 13| 4.2 5.1 9.4| 42.4 -46.8 -4.4 -2.2 0.03| 11.6 0.4 2500 77 14 10 12| 3.7 4.1 7.8| 44.6 -46.8 -2.2 -0.9 0.05| 9.7 0.5 3000 80 14 12 12| 3.4 3.4 6.8| 46.6 -46.8 -0.2 -0.1 0.07| 8.5 0.6 4000 87 15 21 10| 2.6 2.6 5.2| 59.2 -46.8 12.4 3.1 0.16| 7.2 1.2 5000 93 17 36 10| 2.4 2.1 4.5| 73.6 -46.8 26.9 5.4 0.21| 6.4 1.4 6000 98 19 51 10| 2.2 1.6 3.8| 80.8 -51.3 29.5 4.9 0.20| 5.9 1.2 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20251226.12.gif