UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025123012.upa.cvt Date: 1200Z 30 DEC 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:1200Z 30 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 1018 103 4.8 -2.2 60 7.0 2.0 90 15 276.5 277.1 274.2 285.3 3.19 1 1000 242 4.2 -0.6 71 4.8 2.2 90 23 277.4 278.0 275.3 287.4 3.66 2 925 870 -1.7 -1.9 99 0.2 -1.8 85 33 277.6 278.2 275.3 287.5 3.59 3 850 1556 4.0 -19.0 17 23.0 -2.9 105 19 290.3 290.5 278.3 293.4 1.00 4 700 3107 -4.9 -22.9 23 18.0 -9.5 95 19 297.1 297.2 281.3 299.8 0.87 5 500 5660 -23.5 -37.5 26 14.0 -25.2 85 19 304.4 304.4 283.6 305.4 0.30 6 400 7250 -35.1 -50.1 20 15.0 -36.0 95 21 309.4 309.4 285.2 309.7 0.10 7 300 9190 -50.9 -61.9 26 11.0 -51.1 150 17 313.6 313.6 286.6 313.7 0.03 8 250 10350 -60.5 -68.5 34 8.0 -60.6 165 23 316.1 316.1 287.5 316.2 0.02 9 214 11302 -66.3 -73.3 37 7.0 -66.4 175 21 321.5 321.5 289.2 321.5 0.01 10 200 11710 -66.7 -74.7 32 8.0 -66.7 150 9 327.1 327.1 290.9 327.2 0.01 11 150 13470 -62.7 -86.7 3 24.0 -62.9 300 9 362.1 362.1 299.1 362.1 0.00 12 100 15980 -61.9 -90.9 1 29.0 -62.1 325 23 408.1 408.1 306.3 408.1 0.00 TRP 214 11302 -66.3 -73.3 37 7.0 -66.4 175 21 321.5 321.5 289.2 321.5 0.01 WND Sounding variables and indices 1000-500 mb thick: 5418.00 m Freezing level: 946.61 mb = 689.05 m = 2260.64 ft Freezing level: 902.63 mb = 1074.60 m = 3525.54 ft Freezing level: 782.58 mb = 2253.08 m = 7391.90 ft Wetbulb zero: 958.82 mb = 580.75 m = 1905.32 ft Precipitable water: 0.32 inches Sfc-500 mean rel hum: 34.91 % Est. max temperature: 15.45 C = 59.81 F Sfc-Lift cond lev (LCL): 913.74 mb = 969.39 m = 3180.36 ft T: -0.87 C 700-500 lapse rate: 7.29 C/km ThetaE index: 0.00 C Layer 1018.0--369098.8 mb Conv cond level (CCL): 686.82 mb = 3251.27 m = 10666.75 ft Mean mixing ratio: 3.57 g/kg Conv temperature: 25.88 C = 78.58 F Cap Strength: 12.54 C Lifted Index: 14.80 C Risk: None Lifted Index @300 mb: 18.69 C Lifted Index @700 mb: 12.54 C Showalter Index: 10.17 C Risk: None Total Totals Index: 32.00 C Risk: None Vertical Totals Index: 27.50 C Cross Totals Index: 4.50 C K Index: -9.50 Risk: None Sweat Index: 57.00 Risk: None Energy Index: 2.56 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.35 J/kg Max Up Vert Vel: 2.17 m/s Conv Inhibition (B-): 15507.36 J/kg Cap Strength: 14.71 C Lift Cond Lev (LCL): 922.92 mb = 888.24 m = 2914.14 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 122 at 16 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 1018 103 90 15 -15.0 0.0 | 13 8 -1.8 -8.2 1 1000 242 90 23 -23.0 0.0 | 50 13 -9.8 -8.2 2 925 870 85 33 -32.9 -2.9 | 61 23 -19.7 -11.1 3 850 1556 105 19 -18.4 4.9 | 57 6 -5.2 -3.3 4 700 3107 95 19 -18.9 1.7 | 41 9 -5.8 -6.6 5 500 5660 85 19 -18.9 -1.7 | 30 11 -5.8 -9.9 6 400 7250 95 21 -20.9 1.8 | 50 10 -7.7 -6.4 7 300 9190 150 17 -8.5 14.7 | 216 8 4.7 6.5 8 250 10350 165 23 -6.0 22.2 | 207 16 7.2 14.0 9 214 11302 175 21 -1.8 20.9 | 222 17 11.3 12.7 10 200 11710 150 9 -4.5 7.8 | 273 9 8.7 -0.4 11 150 13470 300 9 7.8 -4.5 | 301 25 21.0 -12.7 12 100 15980 325 23 13.2 -18.8 | 316 38 26.4 -27.1 Wind Parameters Mean winds (0-6000m): 92.0 at 20.7 knts Storm direction: 122.0 at 15.5 knts Shear (0-3000m) pos: 2.1 neg: 2.6 tot: 4.6 10-3/s Storm rel Dir Shear (0-3000m): 28.7 deg Storm rel helicity (0-3000m) pos: 38.0 neg: -6.3 tot: 31.6 m^2/s^2 ave: 10.5 10^-3 m/s^2 rel: 0.22 Storm rel vorticity (0-3000m) horiz: 6.3 stream: 1.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.52 Bulk Shear: 1.55 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 89 24 51 14| 0.0 14.2 14.2| 26.1 0.0 26.1 52.1 0.63| 14.4 9.1 1000 88 27 56 17| 1.2 7.1 8.3| 36.9 0.0 36.9 36.9 0.48| 11.8 5.6 1500 90 26 57 15| 4.1 4.7 8.9| 38.0 -2.4 35.6 23.7 0.30| 11.5 3.4 2000 92 24 57 13| 3.1 3.6 6.8| 38.0 -3.6 34.3 17.2 0.27| 8.9 2.4 2500 94 23 56 12| 2.5 3.0 5.5| 38.0 -4.9 33.0 13.2 0.24| 7.3 1.8 3000 94 22 55 11| 2.1 2.6 4.6| 38.0 -6.3 31.6 10.5 0.22| 6.3 1.4 4000 94 22 51 11| 1.6 2.0 3.5| 38.0 -8.2 29.8 7.4 0.19| 4.9 0.9 5000 93 21 48 11| 1.2 1.6 2.9| 38.0 -10.2 27.7 5.5 0.17| 4.0 0.7 6000 92 21 45 11| 1.0 1.4 2.4| 40.8 -11.3 29.5 4.9 0.17| 3.5 0.6 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20251230.12.gif