UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122400.upa.cvt Date: 0000Z 24 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:0000Z 24 DEC 25 Station: LFBD WMO ident: 7510 Latitude: 44.83 Longitude: -0.70 Elevation: 61.00 ------------------------------------------------------------------------------- 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 1007 61 5.2 4.9 98 0.3 5.1 20 7 277.8 278.7 277.9 292.5 5.39 1 1000 105 6.6 5.9 95 0.7 6.2 30 13 279.8 280.7 279.4 295.7 5.82 2 925 743 6.2 5.3 94 0.9 5.8 85 3 285.6 286.7 282.4 302.6 6.04 3 850 1439 5.6 0.6 70 5.0 3.2 50 9 292.0 292.8 283.7 305.7 4.70 4 700 2996 -4.7 -8.2 76 3.5 -6.0 85 19 297.3 297.8 283.8 306.2 2.94 5 500 5550 -22.5 -31.5 44 9.0 -23.9 75 29 305.6 305.7 284.4 307.5 0.55 6 400 7140 -35.9 -44.9 39 9.0 -36.5 95 38 308.3 308.4 284.9 309.0 0.17 7 300 9070 -51.9 -59.9 38 8.0 -52.1 80 48 312.2 312.2 286.2 312.3 0.04 8 250 10230 -59.7 -64.7 52 5.0 -59.7 90 50 317.3 317.3 287.9 317.4 0.03 9 223 10938 -62.7 -67.7 51 5.0 -62.7 80 50 323.2 323.3 289.8 323.3 0.02 10 200 11610 -61.7 -69.7 34 8.0 -61.8 75 25 335.1 335.1 293.1 335.1 0.02 11 150 13420 -55.9 -78.9 4 23.0 -56.2 20 25 373.8 373.8 301.2 373.8 0.01 12 100 16010 -53.7 -84.7 1 31.0 -54.3 5 33 424.0 424.0 308.2 424.0 0.00 TRP 223 10938 -62.7 -67.7 51 5.0 -62.7 80 50 323.2 323.3 289.8 323.3 0.02 WND Sounding variables and indices 1000-500 mb thick: 5445.00 m Freezing level: 768.45 mb = 2285.52 m = 7498.35 ft Wetbulb zero: 798.25 mb = 1942.73 m = 6373.70 ft Precipitable water: 0.74 inches Sfc-500 mean rel hum: 70.63 % Est. max temperature: 18.82 C = 65.88 F Sfc-Lift cond lev (LCL): 1002.31 mb = 90.45 m = 296.75 ft T: 6.14 C 700-500 lapse rate: 6.97 C/km ThetaE index: 0.00 C Layer 1007.0- -0.0 mb Conv cond level (CCL): 810.45 mb = 1821.10 m = 5974.67 ft Mean mixing ratio: 5.90 g/kg Conv temperature: 20.77 C = 69.39 F Cap Strength: 5.32 C Lifted Index: 6.84 C Risk: None Lifted Index @300 mb: 9.08 C Lifted Index @700 mb: 5.01 C Showalter Index: 2.62 C Risk: Showers probable Total Totals Index: 51.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.10 C Cross Totals Index: 23.10 C K Index: 25.20 Risk: 40-60 % chance of thunderstorms Sweat Index: 98.20 Risk: None Energy Index: 0.36 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 26.33 J/kg Max Up Vert Vel: 7.26 m/s Conv Inhibition (B-): 12212.93 J/kg Cap Strength: 6.78 C Lift Cond Lev (LCL): 942.49 mb = 589.74 m = 1934.82 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 105 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 1007 61 20 7 -2.4 -6.6 | 313 15 10.8 -10.2 1 1000 105 30 13 -6.5 -11.3 | 336 16 6.7 -14.9 2 925 743 85 3 -3.0 -0.3 | 291 11 10.2 -3.9 3 850 1439 50 9 -6.9 -5.8 | 326 11 6.3 -9.4 4 700 2996 85 19 -18.9 -1.7 | 47 8 -5.7 -5.3 5 500 5550 75 29 -28.0 -7.5 | 53 19 -14.8 -11.1 6 400 7140 95 38 -37.9 3.3 | 89 25 -24.6 -0.3 7 300 9070 80 48 -47.3 -8.3 | 71 36 -34.0 -12.0 8 250 10230 90 50 -50.0 0.0 | 84 37 -36.8 -3.6 9 223 10938 80 50 -49.2 -8.7 | 71 38 -36.0 -12.3 10 200 11610 75 25 -24.1 -6.5 | 47 15 -10.9 -10.1 11 150 13420 20 25 -8.6 -23.5 | 350 28 4.7 -27.1 12 100 16010 5 33 -2.9 -32.9 | 344 38 10.3 -36.5 Wind Parameters Mean winds (0-6000m): 75.4 at 18.3 knts Storm direction: 105.4 at 13.7 knts Shear (0-3000m) pos: 2.9 neg: 0.8 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 94.4 deg Storm rel helicity (0-3000m) pos: 68.7 neg: -22.7 tot: 46.0 m^2/s^2 ave: 15.3 10^-3 m/s^2 rel: 0.44 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 2.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.41 Bulk Shear: 18.70 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 40 9 327 13| 5.6 0.0 5.6| 21.9 -15.8 6.1 12.3 0.02| 14.4 0.2 1000 45 7 316 12| 2.8 0.1 2.9| 28.7 -22.7 6.0 6.0 0.01| 10.2 0.1 1500 47 7 317 12| 1.9 1.5 3.4| 40.8 -22.7 18.1 12.1 0.19| 8.5 1.6 2000 52 8 322 11| 2.2 1.2 3.3| 50.6 -22.7 27.8 13.9 0.29| 7.4 2.1 2500 59 10 329 10| 2.6 0.9 3.5| 60.0 -22.7 37.3 14.9 0.37| 6.8 2.5 3000 67 11 338 9| 2.9 0.8 3.7| 68.7 -22.7 46.0 15.3 0.44| 6.4 2.8 4000 73 13 357 8| 2.2 1.1 3.2| 70.9 -22.7 48.2 12.0 0.42| 5.3 2.2 5000 75 16 15 8| 1.7 1.3 3.0| 71.4 -22.8 48.6 9.7 0.38| 4.7 1.8 6000 75 18 28 9| 1.8 1.3 3.1| 92.6 -23.2 69.3 11.6 0.41| 4.5 1.8 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251224.00.gif