UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050612.upa.cvt Date: 1200Z 6 MAY 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 6 MAY 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 1011 61 13.8 7.8 67 6.0 10.5 350 7 286.1 287.2 283.2 304.4 6.57 1 1000 144 11.8 6.8 71 5.0 9.1 345 7 285.0 286.0 282.3 302.3 6.20 2 925 789 6.4 3.7 83 2.7 5.1 25 11 285.9 286.8 281.8 301.0 5.39 3 850 1478 1.6 -0.2 88 1.8 0.8 55 19 287.8 288.6 281.5 300.5 4.43 4 700 3012 -9.1 -10.1 92 1.0 -9.4 55 13 292.4 292.9 281.3 300.0 2.53 5 500 5540 -23.7 -41.7 17 18.0 -25.6 60 19 304.1 304.2 283.3 304.8 0.20 6 400 7120 -36.9 -49.9 25 13.0 -37.6 70 21 307.0 307.0 284.3 307.4 0.10 7 319 8653 -46.3 -64.3 11 18.0 -46.7 65 23 314.5 314.5 286.9 314.6 0.02 8 300 9060 -46.7 -62.7 15 16.0 -47.1 45 17 319.5 319.5 288.6 319.6 0.03 9 250 10270 -48.3 -71.3 5 23.0 -48.7 10 5 334.3 334.3 292.9 334.3 0.01 10 200 11730 -50.5 -82.5 1 32.0 -51.0 355 11 352.8 352.8 297.3 352.8 0.00 11 150 13600 -51.3 -83.3 1 32.0 -51.8 265 11 381.7 381.7 302.5 381.7 0.00 12 100 16210 -53.9 -84.9 1 31.0 -54.5 200 9 423.6 423.6 308.2 423.6 0.00 TRP 319 8653 -46.3 -64.3 11 18.0 -46.7 65 23 314.5 314.5 286.9 314.6 0.02 WND Sounding variables and indices 1000-500 mb thick: 5396.00 m Freezing level: 827.57 mb = 1707.38 m = 5601.58 ft Wetbulb zero: 838.54 mb = 1585.29 m = 5201.03 ft Precipitable water: 0.67 inches Sfc-500 mean rel hum: 70.97 % Est. max temperature: 15.28 C = 59.50 F Sfc-Lift cond lev (LCL): 923.68 mb = 800.65 m = 2626.78 ft T: 6.32 C 700-500 lapse rate: 5.78 C/km ThetaE index: 4.48 C Layer 1000.0- 500.0 mb Conv cond level (CCL): 888.38 mb = 1118.16 m = 3668.45 ft Mean mixing ratio: 5.79 g/kg Conv temperature: 14.55 C = 58.19 F Cap Strength: 0.82 C Lifted Index: 4.05 C Risk: None Lifted Index @300 mb: 12.75 C Lifted Index @700 mb: -0.65 C Showalter Index: 4.93 C Risk: None Total Totals Index: 48.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.30 C Cross Totals Index: 23.50 C K Index: 24.10 Risk: 20-40 % chance of thunderstorms Sweat Index: 57.00 Risk: None Energy Index: 0.86 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 25.70 J/kg Max Up Vert Vel: 7.17 m/s Conv Inhibition (B-): 14.09 J/kg Cap Strength: 3.84 C Lift Cond Lev (LCL): 905.70 mb = 960.78 m = 3152.12 ft Lev Free Conv (LFC): 820.70 mb = 1755.12 m = 5758.19 ft Equ Level (EL): 650.70 mb = 3560.66 m = 11681.82 ft B at Equ Level: 25.12 J/kg Max Parcel Lev (MPL): 580.70 mb = 4415.77 m = 14487.27 ft Wind level data Storm motion: 83 at 12 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 1011 61 350 7 1.2 -6.9 | 294 14 12.6 -5.5 1 1000 144 345 7 1.8 -6.8 | 292 14 13.2 -5.4 2 925 789 25 11 -4.6 -10.0 | 322 11 6.8 -8.6 3 850 1478 55 19 -15.6 -10.9 | 23 10 -4.1 -9.6 4 700 3012 55 13 -10.6 -7.5 | 353 6 0.8 -6.1 5 500 5540 60 19 -16.5 -9.5 | 32 10 -5.0 -8.2 6 400 7120 70 21 -19.7 -7.2 | 55 10 -8.3 -5.8 7 319 8653 65 23 -20.8 -9.7 | 48 13 -9.4 -8.4 8 300 9060 45 17 -12.0 -12.0 | 3 11 -0.6 -10.7 9 250 10270 10 5 -0.9 -4.9 | 289 11 10.6 -3.6 10 200 11730 355 11 1.0 -11.0 | 308 16 12.4 -9.6 11 150 13600 265 11 11.0 1.0 | 264 23 22.4 2.3 12 100 16210 200 9 3.1 8.5 | 236 18 14.5 9.8 Wind Parameters Mean winds (0-6000m): 53.3 at 15.4 knts Storm direction: 83.3 at 11.5 knts Shear (0-3000m) pos: 2.6 neg: 0.7 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 60.0 deg Storm rel helicity (0-3000m) pos: 52.3 neg: -8.7 tot: 43.5 m^2/s^2 ave: 14.5 10^-3 m/s^2 rel: 0.55 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 2.3 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.22 Bulk Shear: 21.13 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 ------------------------------------------------------------------------------- 500 358 8 300 14| 4.0 0.0 4.0| 14.4 -0.7 13.7 27.3 0.78| 5.0 3.9 1000 16 10 313 12| 5.5 0.0 5.5| 33.4 -0.7 32.7 32.7 0.87| 6.1 5.3 1500 33 12 331 10| 5.8 0.0 5.8| 52.3 -0.7 51.5 34.4 0.91| 6.5 5.9 2000 40 14 343 9| 4.4 0.5 4.9| 52.3 -3.5 48.7 24.4 0.77| 5.4 4.2 2500 44 14 349 9| 3.5 0.8 4.3| 52.3 -6.4 45.9 18.4 0.65| 4.7 3.0 3000 46 14 351 8| 2.6 0.7 3.3| 52.3 -8.7 43.5 14.5 0.55| 4.2 2.3 4000 49 14 354 8| 2.3 0.5 2.8| 56.1 -8.7 47.4 11.8 0.58| 3.5 2.0 5000 51 15 359 8| 2.1 0.4 2.5| 60.1 -8.7 51.4 10.3 0.60| 3.0 1.8 6000 53 15 6 8| 1.9 0.3 2.3| 65.4 -8.7 56.7 9.5 0.62| 2.7 1.7 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20250506.12.gif