UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025080412.upa.cvt Date: 1200Z 4 AUG 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:1200Z 4 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 1010 103 17.2 15.1 87 2.1 15.9 225 7 289.5 291.4 288.6 319.7 10.74 1 1000 181 16.6 16.6 100 0.0 16.6 220 11 289.8 291.9 289.8 323.3 11.96 2 925 842 14.4 12.2 87 2.2 13.0 245 19 294.0 295.8 289.3 321.8 9.69 3 850 1558 15.0 7.0 59 8.0 10.3 255 25 301.9 303.2 289.9 323.9 7.41 4 700 3181 7.8 -5.2 39 13.0 1.6 265 25 311.1 311.8 289.6 322.9 3.71 5 500 5880 -6.9 -8.6 88 1.7 -7.7 275 38 324.6 325.4 293.8 337.9 4.00 6 400 7590 -16.9 -24.9 50 8.0 -19.1 280 40 333.0 333.3 293.7 337.6 1.27 7 300 9690 -31.9 -37.9 55 6.0 -32.7 280 38 340.4 340.5 294.8 342.3 0.49 8 250 10950 -42.1 -50.1 41 8.0 -42.6 290 46 343.5 343.5 295.3 344.1 0.16 9 200 12420 -54.5 -59.5 54 5.0 -54.6 295 48 346.5 346.5 295.9 346.7 0.06 10 150 14220 -65.1 -76.1 20 11.0 -65.2 280 35 357.9 357.9 298.3 358.0 0.01 11 146 14384 -65.9 -75.9 24 10.0 -66.0 280 36 359.3 359.3 298.6 359.4 0.01 12 100 16690 -62.5 -83.5 4 21.0 -62.7 270 23 407.0 407.0 306.1 407.0 0.00 TRP 146 14384 -65.9 -75.9 24 10.0 -66.0 280 36 359.3 359.3 298.6 359.4 0.01 WND Sounding variables and indices 1000-500 mb thick: 5699.00 m Freezing level: 593.88 mb = 4613.12 m = 15134.73 ft Wetbulb zero: 665.40 mb = 3587.67 m = 11770.44 ft Precipitable water: 1.41 inches Sfc-500 mean rel hum: 64.31 % Est. max temperature: 28.47 C = 83.25 F Sfc-Lift cond lev (LCL): 979.08 mb = 360.23 m = 1181.83 ft T: 16.00 C 700-500 lapse rate: 5.45 C/km ThetaE index: 1.49 C Layer 925.0- 850.0 mb Conv cond level (CCL): 753.32 mb = 2567.34 m = 8422.94 ft Mean mixing ratio: 10.66 g/kg Conv temperature: 35.33 C = 95.60 F Cap Strength: 6.37 C Lifted Index: 8.20 C Risk: None Lifted Index @300 mb: 13.37 C Lifted Index @700 mb: 6.37 C Showalter Index: 7.38 C Risk: None Total Totals Index: 35.80 C Risk: None Vertical Totals Index: 21.90 C Cross Totals Index: 13.90 C K Index: 15.90 Risk: < 20 % chance of thunderstorms Sweat Index: 172.00 Risk: None Energy Index: 2.78 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 19.06 J/kg Max Up Vert Vel: 6.17 m/s Conv Inhibition (B-): 9470.59 J/kg Cap Strength: 8.14 C Lift Cond Lev (LCL): 940.66 mb = 699.65 m = 2295.41 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 294 at 20 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 1010 103 225 7 4.9 4.9 | 135 19 -13.4 13.3 1 1000 181 220 11 7.1 8.4 | 146 20 -11.3 16.7 2 925 842 245 19 17.2 8.0 | 176 16 -1.1 16.3 3 850 1558 255 25 24.1 6.5 | 201 16 5.8 14.8 4 700 3181 265 25 24.9 2.2 | 212 12 6.6 10.5 5 500 5880 275 38 37.9 -3.3 | 256 20 19.5 5.0 6 400 7590 280 40 39.4 -6.9 | 266 21 21.1 1.4 7 300 9690 280 38 37.4 -6.6 | 265 19 19.1 1.7 8 250 10950 290 46 43.2 -15.7 | 287 26 24.9 -7.4 9 200 12420 295 48 43.5 -20.3 | 295 28 25.2 -12.0 10 150 14220 280 35 34.5 -6.1 | 262 16 16.1 2.2 11 146 14384 280 36 35.5 -6.3 | 263 17 17.1 2.1 12 100 16690 270 23 23.0 -0.0 | 209 10 4.7 8.3 Wind Parameters Mean winds (0-6000m): 264.4 at 26.8 knts Storm direction: 294.4 at 20.1 knts Shear (0-3000m) pos: 3.4 neg: 0.0 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 76.8 deg Storm rel helicity (0-3000m) pos: 105.9 neg: 0.0 tot: 105.9 m^2/s^2 ave: 35.3 10^-3 m/s^2 rel: 0.90 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 4.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.44 Bulk Shear: 43.28 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 ------------------------------------------------------------------------------- 500 229 13 152 19| 9.6 0.0 9.6| 49.9 0.0 49.9 99.7 0.95| 10.7 10.1 1000 239 16 164 17| 7.7 0.0 7.7| 77.3 0.0 77.3 77.3 0.95| 8.7 8.2 1500 245 18 174 16| 6.6 0.0 6.6| 96.9 0.0 96.9 64.6 0.96| 7.4 7.1 2000 248 20 181 16| 5.0 0.0 5.0|100.1 0.0 100.1 50.1 0.94| 5.9 5.5 2500 251 21 186 15| 4.1 0.0 4.1|103.1 0.0 103.1 41.3 0.92| 5.0 4.6 3000 254 22 190 15| 3.4 0.0 3.4|105.9 0.0 105.9 35.3 0.90| 4.4 4.0 4000 257 23 197 14| 3.2 0.0 3.2|121.4 0.0 121.4 30.3 0.90| 3.9 3.5 5000 261 25 207 14| 3.1 0.0 3.1|139.2 0.0 139.2 27.8 0.89| 3.7 3.3 6000 264 27 217 14| 2.9 0.0 2.9|157.3 0.0 157.3 26.2 0.87| 3.5 3.0 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20250804.12.gif