UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102012.upa.cvt Date: 1200Z 20 OCT 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 20 OCT 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 1001 61 17.2 14.9 86 2.3 15.7 250 23 290.3 292.2 288.9 320.4 10.70 1 1000 55 15.6 14.4 93 1.2 14.8 250 23 288.8 290.6 288.0 317.8 10.36 2 925 714 12.0 10.9 93 1.1 11.3 255 35 291.6 293.2 287.7 316.8 8.88 3 850 1416 7.0 6.4 96 0.6 6.7 260 31 293.5 294.7 286.7 314.0 7.11 4 700 2991 -0.9 -12.9 40 12.0 -5.2 255 36 301.5 301.9 284.5 307.8 2.02 5 500 5600 -16.1 -38.1 13 22.0 -19.6 265 42 313.4 313.5 286.9 314.4 0.29 6 400 7250 -23.9 -50.9 6 27.0 -26.5 295 73 323.9 323.9 290.0 324.3 0.09 7 300 9280 -40.7 -44.8 65 4.1 -41.0 290 73 328.0 328.0 291.4 328.9 0.24 8 250 10500 -50.9 -54.9 62 4.0 -51.0 300 91 330.4 330.4 291.9 330.7 0.09 9 200 11930 -56.1 -72.1 12 16.0 -56.3 295 79 343.9 343.9 295.3 344.0 0.01 10 183 12496 -57.6 -75.6 8 18.0 -57.8 300 93 350.4 350.4 296.7 350.4 0.01 11 161 13306 -59.7 -80.7 5 21.0 -59.9 300 73 359.9 359.9 298.7 359.9 0.00 12 150 13750 -60.3 -83.3 3 23.0 -60.5 300 64 366.2 366.2 299.9 366.2 0.00 13 100 16260 -62.3 -91.3 1 29.0 -62.5 295 36 407.4 407.4 306.2 407.4 0.00 TRP 161 13306 -59.7 -80.7 5 21.0 -59.9 300 73 359.9 359.9 298.7 359.9 0.00 WND 183 12496 -57.6 -75.6 8 18.0 -57.8 300 93 350.4 350.4 296.7 350.4 0.01 Sounding variables and indices 1000-500 mb thick: 5545.00 m Freezing level: 717.09 mb = 2811.57 m = 9224.20 ft Wetbulb zero: 765.68 mb = 2263.52 m = 7426.17 ft Precipitable water: 0.91 inches Sfc-500 mean rel hum: 53.83 % Est. max temperature: 20.39 C = 68.70 F Sfc-Lift cond lev (LCL): 967.46 mb = 334.61 m = 1097.79 ft T: 14.07 C 700-500 lapse rate: 5.83 C/km ThetaE index: 12.57 C Layer 1000.0- 500.0 mb Conv cond level (CCL): 918.85 mb = 769.41 m = 2524.27 ft Mean mixing ratio: 9.37 g/kg Conv temperature: 18.66 C = 65.59 F Cap Strength: 0.61 C Lifted Index: 1.93 C Risk: Showers probable Lifted Index @300 mb: 8.15 C Lifted Index @700 mb: -0.10 C Showalter Index: 3.80 C Risk: None Total Totals Index: 45.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.10 C Cross Totals Index: 22.50 C K Index: 17.50 Risk: < 20 % chance of thunderstorms Sweat Index: 180.80 Risk: None Energy Index: 0.13 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 49.32 J/kg Max Up Vert Vel: 9.93 m/s Conv Inhibition (B-): 4.45 J/kg Cap Strength: 1.81 C Lift Cond Lev (LCL): 934.60 mb = 626.74 m = 2056.21 ft Lev Free Conv (LFC): 889.60 mb = 1037.98 m = 3405.40 ft Equ Level (EL): 669.60 mb = 3335.29 m = 10942.43 ft B at Equ Level: 49.31 J/kg Max Parcel Lev (MPL): 519.60 mb = 5301.87 m = 17394.38 ft Wind level data Storm motion: 290 at 27 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 61 250 23 21.6 7.9 | 166 18 -4.1 17.0 1 1000 55 250 23 21.6 7.9 | 166 18 -4.1 17.0 2 925 714 255 35 33.8 9.1 | 204 20 8.1 18.2 3 850 1416 260 31 30.5 5.4 | 198 15 4.8 14.6 4 700 2991 255 36 34.8 9.3 | 206 21 9.0 18.5 5 500 5600 265 42 41.8 3.7 | 231 21 16.1 12.8 6 400 7250 295 73 66.2 -30.9 | 298 46 40.4 -21.7 7 300 9280 290 73 68.6 -25.0 | 290 46 42.9 -15.8 8 250 10500 300 91 78.8 -45.5 | 304 64 53.1 -36.3 9 200 11930 295 79 71.6 -33.4 | 298 52 45.9 -24.2 10 183 12496 300 93 80.5 -46.5 | 304 66 54.8 -37.3 11 161 13306 300 73 63.2 -36.5 | 306 46 37.5 -27.3 12 150 13750 300 64 55.4 -32.0 | 308 37 29.7 -22.8 13 100 16260 295 36 32.6 -15.2 | 311 9 6.9 -6.0 Wind Parameters Mean winds (0-6000m): 259.6 at 36.4 knts Storm direction: 289.6 at 27.3 knts Shear (0-3000m) pos: 1.6 neg: 0.9 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): 39.9 deg Storm rel helicity (0-3000m) pos: 68.4 neg: -7.0 tot: 61.4 m^2/s^2 ave: 20.5 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 3.8 stream: 2.2 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 3.98 Bulk Shear: 12.39 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 ------------------------------------------------------------------------------- 500 252 28 182 18| 9.5 0.0 9.5| 43.3 0.0 43.3 86.5 0.98| 9.6 9.4 1000 254 31 192 18| 5.4 0.0 5.4| 56.4 -3.1 53.3 53.3 0.79| 7.3 5.7 1500 256 31 195 17| 3.2 0.0 3.2| 57.2 -7.0 50.2 33.4 0.62| 5.8 3.6 2000 257 31 196 17| 2.4 0.5 2.9| 61.0 -7.0 54.0 27.0 0.60| 4.8 2.9 2500 257 32 198 17| 1.9 0.8 2.7| 64.5 -7.0 57.5 23.0 0.59| 4.2 2.5 3000 256 32 199 18| 1.6 0.9 2.5| 68.4 -7.0 61.4 20.5 0.57| 3.8 2.2 4000 257 34 203 18| 1.6 0.7 2.3| 86.8 -7.0 79.8 19.9 0.63| 3.3 2.1 5000 258 35 207 19| 1.6 0.5 2.2|105.7 -7.0 98.7 19.7 0.67| 3.0 2.0 6000 260 36 213 19| 2.5 0.5 2.9|175.4 -7.0 168.4 28.1 0.74| 3.6 2.7 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251020.12.gif