UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122312.upa.cvt Date: 1200Z 23 DEC 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:1200Z 23 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 1001 103 8.2 2.2 66 6.0 5.4 115 9 281.3 282.0 278.5 293.7 4.48 1 1000 105 8.2 3.7 73 4.5 6.0 110 9 281.4 282.2 279.1 295.2 4.99 2 925 748 6.4 3.5 82 2.9 4.9 110 11 285.9 286.8 281.7 300.8 5.32 3 850 1435 2.0 -0.6 83 2.6 0.8 90 9 288.2 289.0 281.6 300.6 4.30 4 700 2979 -6.3 -12.3 62 6.0 -8.3 120 23 295.5 295.9 282.2 302.0 2.12 5 500 5530 -23.7 -26.1 81 2.4 -24.1 120 35 304.1 304.3 284.2 307.1 0.91 6 400 7110 -36.9 -38.9 82 2.0 -37.1 115 42 307.0 307.1 284.7 308.2 0.33 7 300 9030 -52.7 -62.7 29 10.0 -52.9 120 44 311.1 311.1 285.7 311.2 0.03 8 267 9776 -59.1 -65.1 46 6.0 -59.2 120 52 312.3 312.3 286.2 312.4 0.02 9 250 10190 -59.5 -69.5 26 10.0 -59.6 125 56 317.6 317.6 288.0 317.7 0.01 10 200 11590 -56.5 -77.5 5 21.0 -56.7 55 15 343.3 343.3 295.1 343.3 0.00 11 150 13420 -54.9 -85.9 1 31.0 -55.3 10 35 375.5 375.5 301.5 375.5 0.00 12 100 16010 -56.7 -86.7 1 30.0 -57.2 345 35 418.2 418.2 307.5 418.2 0.00 TRP 267 9776 -59.1 -65.1 46 6.0 -59.2 120 52 312.3 312.3 286.2 312.4 0.02 WND Sounding variables and indices 1000-500 mb thick: 5425.00 m Freezing level: 813.86 mb = 1807.05 m = 5928.56 ft Wetbulb zero: 836.21 mb = 1565.03 m = 5134.57 ft Precipitable water: 0.65 inches Sfc-500 mean rel hum: 73.79 % Est. max temperature: 15.14 C = 59.25 F Sfc-Lift cond lev (LCL): 913.27 mb = 851.73 m = 2794.34 ft T: 5.74 C 700-500 lapse rate: 6.82 C/km ThetaE index: 0.25 C Layer 850.0- 700.0 mb Conv cond level (CCL): 845.46 mb = 1477.60 m = 4847.71 ft Mean mixing ratio: 5.15 g/kg Conv temperature: 15.38 C = 59.68 F Cap Strength: 3.90 C Lifted Index: 6.22 C Risk: None Lifted Index @300 mb: 8.86 C Lifted Index @700 mb: 3.90 C Showalter Index: 4.87 C Risk: None Total Totals Index: 48.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.70 C Cross Totals Index: 23.10 C K Index: 19.10 Risk: < 20 % chance of thunderstorms Sweat Index: 53.00 Risk: None Energy Index: 1.35 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 14.85 J/kg Max Up Vert Vel: 5.45 m/s Conv Inhibition (B-): 11206.14 J/kg Cap Strength: 6.01 C Lift Cond Lev (LCL): 899.96 mb = 970.93 m = 3185.41 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 147 at 17 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 1001 103 115 9 -8.2 3.8 | 355 10 1.0 -10.3 1 1000 105 110 9 -8.5 3.1 | 356 11 0.7 -11.0 2 925 748 110 11 -10.3 3.8 | 7 10 -1.2 -10.3 3 850 1435 90 9 -9.0 0.0 | 359 14 0.1 -14.1 4 700 2979 120 23 -19.9 11.5 | 77 11 -10.8 -2.6 5 500 5530 120 35 -30.3 17.5 | 99 21 -21.2 3.4 6 400 7110 115 42 -38.1 17.7 | 97 29 -28.9 3.7 7 300 9030 120 44 -38.1 22.0 | 105 30 -29.0 7.9 8 267 9776 120 52 -45.0 26.0 | 108 38 -35.9 11.9 9 250 10190 125 56 -45.9 32.1 | 116 41 -36.7 18.0 10 200 11590 55 15 -12.3 -8.6 | 8 23 -3.1 -22.7 11 150 13420 10 35 -6.1 -34.5 | 356 49 3.1 -48.6 12 100 16010 345 35 9.1 -33.8 | 339 51 18.2 -47.9 Wind Parameters Mean winds (0-6000m): 117.0 at 22.4 knts Storm direction: 147.0 at 16.8 knts Shear (0-3000m) pos: 2.6 neg: 0.7 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 84.0 deg Storm rel helicity (0-3000m) pos: 57.5 neg: -4.6 tot: 52.9 m^2/s^2 ave: 17.6 10^-3 m/s^2 rel: 0.74 Storm rel vorticity (0-3000m) horiz: 4.0 stream: 2.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.69 Bulk Shear: 21.53 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 ------------------------------------------------------------------------------- 500 110 10 0 11| 0.0 1.8 1.8| 5.1 0.0 5.1 10.2 0.86| 2.2 1.9 1000 108 10 3 11| 0.0 1.4 1.4| 6.1 -1.9 4.2 4.2 0.34| 2.3 0.8 1500 104 10 3 12| 0.0 1.4 1.4| 11.3 -4.6 6.7 4.5 0.29| 2.6 0.8 2000 103 11 6 12| 1.3 1.0 2.3| 27.5 -4.6 22.9 11.5 0.55| 3.3 1.8 2500 106 12 13 11| 2.1 0.8 2.9| 43.6 -4.6 39.0 15.6 0.68| 3.7 2.5 3000 110 14 21 10| 2.6 0.7 3.2| 57.5 -4.6 52.9 17.6 0.74| 4.0 2.9 4000 114 17 40 10| 1.9 0.8 2.8| 67.0 -4.6 62.4 15.6 0.71| 3.6 2.5 5000 116 20 57 10| 1.5 1.1 2.6| 76.4 -4.6 71.9 14.4 0.67| 3.3 2.2 6000 117 22 70 11| 1.3 1.3 2.6| 80.4 -5.7 74.7 12.5 0.60| 3.2 1.9 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20251223.12.gif