UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025081200.upa.cvt Date: 0000Z 12 AUG 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:0000Z 12 AUG 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 1002 103 18.0 13.0 73 5.0 14.9 215 5 291.0 292.7 288.0 317.7 9.43 1 1000 110 19.6 13.6 68 6.0 15.8 210 5 292.8 294.5 289.0 320.8 9.83 2 925 790 23.4 7.4 36 16.0 13.8 135 11 303.2 304.5 290.0 324.2 6.99 3 850 1520 17.4 9.4 59 8.0 12.4 150 7 304.4 306.0 291.9 330.6 8.74 4 700 3157 8.6 -3.4 43 12.0 2.6 215 7 312.0 312.8 290.4 325.4 4.25 5 500 5830 -9.5 -20.5 40 11.0 -12.9 225 27 321.5 321.7 290.7 326.6 1.50 6 400 7520 -21.1 -30.1 44 9.0 -22.9 240 27 327.6 327.7 291.8 330.4 0.78 7 300 9570 -37.7 -45.7 43 8.0 -38.4 245 42 332.2 332.3 292.6 333.1 0.21 8 250 10800 -45.9 -58.9 22 13.0 -46.4 240 40 337.8 337.8 293.9 338.1 0.05 9 200 12270 -50.3 -69.3 9 19.0 -50.7 230 46 353.1 353.1 297.3 353.2 0.02 10 150 14140 -55.1 -85.1 1 30.0 -55.5 240 38 375.1 375.1 301.5 375.1 0.00 11 106 16328 -60.9 -89.9 1 29.0 -61.2 200 15 403.3 403.3 305.6 403.3 0.00 12 100 16690 -60.7 -89.7 1 29.0 -61.0 220 27 410.4 410.4 306.6 410.5 0.00 TRP 106 16328 -60.9 -89.9 1 29.0 -61.2 200 15 403.3 403.3 305.6 403.3 0.00 WND Sounding variables and indices 1000-500 mb thick: 5720.00 m Freezing level: 604.97 mb = 4427.04 m = 14524.25 ft Wetbulb zero: 666.54 mb = 3546.13 m = 11634.15 ft Precipitable water: 1.18 inches Sfc-500 mean rel hum: 46.11 % Est. max temperature: 31.37 C = 88.46 F Sfc-Lift cond lev (LCL): 930.23 mb = 740.82 m = 2430.49 ft T: 23.13 C 700-500 lapse rate: 6.77 C/km ThetaE index: 5.14 C Layer 700.0- 500.0 mb Conv cond level (CCL): 647.85 mb = 3772.03 m = 12375.28 ft Mean mixing ratio: 8.15 g/kg Conv temperature: 41.31 C = 106.36 F Cap Strength: 7.14 C Lifted Index: 5.19 C Risk: None Lifted Index @300 mb: 7.05 C Lifted Index @700 mb: 6.88 C Showalter Index: 1.44 C Risk: Showers probable Total Totals Index: 45.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.90 C Cross Totals Index: 18.90 C K Index: 24.30 Risk: 20-40 % chance of thunderstorms Sweat Index: 153.80 Risk: None Energy Index: -0.75 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 29.44 J/kg Max Up Vert Vel: 7.67 m/s Conv Inhibition (B-): 8587.16 J/kg Cap Strength: 7.14 C Lift Cond Lev (LCL): 799.65 mb = 2034.80 m = 6675.77 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 239 at 10 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 1002 103 215 5 2.9 4.1 | 81 5 -5.4 -0.9 1 1000 110 210 5 2.5 4.3 | 84 6 -5.8 -0.6 2 925 790 135 11 -7.8 7.8 | 100 16 -16.1 2.8 3 850 1520 150 7 -3.5 6.1 | 95 12 -11.8 1.1 4 700 3157 215 7 4.0 5.7 | 100 4 -4.3 0.8 5 500 5830 225 27 19.1 19.1 | 217 18 10.8 14.1 6 400 7520 240 27 23.4 13.5 | 240 17 15.1 8.6 7 300 9570 245 42 38.1 17.7 | 247 32 29.8 12.8 8 250 10800 240 40 34.6 20.0 | 240 30 26.4 15.1 9 200 12270 230 46 35.2 29.6 | 228 37 27.0 24.6 10 150 14140 240 38 32.9 19.0 | 240 28 24.6 14.1 11 106 16328 200 15 5.1 14.1 | 161 10 -3.1 9.1 12 100 16690 220 27 17.4 20.7 | 210 18 9.1 15.7 Wind Parameters Mean winds (0-6000m): 209.1 at 12.9 knts Storm direction: 239.1 at 9.6 knts Shear (0-3000m) pos: 1.7 neg: 1.6 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 20.7 deg Storm rel helicity (0-3000m) pos: 10.2 neg: -11.2 tot: -1.0 m^2/s^2 ave: -0.3 10^-3 m/s^2 rel: 0.06 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 0.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 3.44 Bulk Shear: 8.56 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 ------------------------------------------------------------------------------- 500 175 7 103 9| 0.0 8.3 8.3| 5.6 -0.9 4.7 9.3 0.33| 8.7 2.9 1000 149 9 101 13| 0.0 4.7 4.7| 5.6 -7.9 -2.3 -2.3 0.07| 7.4 0.5 1500 148 8 100 13| 1.0 3.2 4.1| 6.1 -10.7 -4.6 -3.0 0.02| 5.9 0.1 2000 151 8 100 12| 1.3 2.4 3.6| 9.1 -10.7 -1.6 -0.8 0.07| 5.1 0.4 2500 157 8 101 12| 1.5 1.9 3.4| 10.2 -10.7 -0.5 -0.2 0.09| 4.6 0.4 3000 163 8 103 11| 1.7 1.6 3.2| 10.2 -11.2 -1.0 -0.3 0.06| 4.2 0.3 4000 181 8 113 9| 1.9 1.2 3.1| 17.3 -11.2 6.1 1.5 0.24| 4.1 1.0 5000 198 10 133 7| 2.3 0.9 3.2| 26.1 -11.2 15.0 3.0 0.29| 4.1 1.2 6000 209 13 162 7| 2.4 0.8 3.2| 39.8 -11.2 28.6 4.8 0.32| 3.9 1.3 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20250812.00.gif