UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025112712.upa.cvt Date: 1200Z 27 NOV 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:1200Z 27 NOV 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 1008 103 12.0 9.2 83 2.8 10.4 225 11 284.5 285.8 283.2 304.6 7.25 1 1000 162 12.4 11.1 92 1.3 11.7 220 13 285.5 287.0 284.8 308.6 8.32 2 925 810 7.6 7.6 100 0.0 7.6 235 27 287.1 288.3 284.2 307.0 7.09 3 850 1504 5.4 5.1 98 0.3 5.2 275 21 291.8 293.0 285.5 310.4 6.49 4 700 3067 -2.5 -2.5 100 0.0 -2.5 260 19 299.7 300.5 286.5 313.4 4.55 5 500 5680 -14.9 -21.9 55 7.0 -16.7 295 19 314.9 315.1 288.5 319.3 1.32 6 400 7320 -26.9 -32.9 57 6.0 -27.8 300 23 320.0 320.1 289.4 322.2 0.60 7 300 9330 -43.1 -46.2 71 3.1 -43.3 295 25 324.6 324.7 290.4 325.4 0.20 8 250 10530 -52.5 -58.5 48 6.0 -52.7 300 31 328.0 328.0 291.2 328.2 0.06 9 200 11940 -63.3 -70.3 38 7.0 -63.4 305 23 332.5 332.5 292.4 332.6 0.01 10 182 12514 -67.1 -74.1 36 7.0 -67.1 305 21 335.4 335.4 293.2 335.5 0.01 11 150 13680 -67.5 -77.5 23 10.0 -67.5 315 33 353.8 353.8 297.4 353.8 0.01 12 100 16120 -67.1 -88.1 4 21.0 -67.2 330 21 398.1 398.1 304.9 398.1 0.00 TRP 182 12514 -67.1 -74.1 36 7.0 -67.1 305 21 335.4 335.4 293.2 335.5 0.01 WND Sounding variables and indices 1000-500 mb thick: 5518.00 m Freezing level: 747.47 mb = 2572.38 m = 8439.46 ft Wetbulb zero: 748.48 mb = 2527.92 m = 8293.60 ft Precipitable water: 1.08 inches Sfc-500 mean rel hum: 88.23 % Est. max temperature: 18.79 C = 65.82 F Sfc-Lift cond lev (LCL): 966.31 mb = 446.88 m = 1466.11 ft T: 10.29 C 700-500 lapse rate: 4.75 C/km ThetaE index: 1.67 C Layer 925.0- 850.0 mb Conv cond level (CCL): 944.78 mb = 634.18 m = 2080.61 ft Mean mixing ratio: 7.59 g/kg Conv temperature: 14.17 C = 57.51 F Cap Strength: 2.81 C Lifted Index: 8.93 C Risk: None Lifted Index @300 mb: 12.22 C Lifted Index @700 mb: 2.81 C Showalter Index: 7.17 C Risk: None Total Totals Index: 40.30 C Risk: None Vertical Totals Index: 20.30 C Cross Totals Index: 20.00 C K Index: 25.40 Risk: 40-60 % chance of thunderstorms Sweat Index: 122.20 Risk: None Energy Index: 1.77 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.52 J/kg Max Up Vert Vel: 4.36 m/s Conv Inhibition (B-): 0.16 J/kg Cap Strength: 8.58 C Lift Cond Lev (LCL): 948.04 mb = 605.53 m = 1986.63 ft Lev Free Conv (LFC): 933.04 mb = 738.10 m = 2421.55 ft Equ Level (EL): 903.04 mb = 1007.23 m = 3304.52 ft B at Equ Level: 8.97 J/kg Max Parcel Lev (MPL): 863.04 mb = 1379.08 m = 4524.48 ft Wind level data Storm motion: 298 at 15 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 1008 103 225 11 7.8 7.8 | 160 16 -5.4 14.7 1 1000 162 220 13 8.4 10.0 | 164 18 -4.8 16.9 2 925 810 235 27 22.1 15.5 | 202 24 8.9 22.4 3 850 1504 275 21 20.9 -1.8 | 236 9 7.7 5.1 4 700 3067 260 19 18.7 3.3 | 208 12 5.5 10.2 5 500 5680 295 19 17.2 -8.0 | 285 4 4.0 -1.1 6 400 7320 300 23 19.9 -11.5 | 304 8 6.7 -4.5 7 300 9330 295 25 22.7 -10.6 | 291 10 9.5 -3.6 8 250 10530 300 31 26.8 -15.5 | 302 16 13.7 -8.5 9 200 11940 305 23 18.8 -13.2 | 318 8 5.6 -6.2 10 182 12514 305 21 17.2 -12.0 | 322 6 4.0 -5.1 11 150 13680 315 33 23.3 -23.3 | 328 19 10.1 -16.4 12 100 16120 330 21 10.5 -18.2 | 13 12 -2.7 -11.2 Wind Parameters Mean winds (0-6000m): 267.8 at 19.9 knts Storm direction: 297.8 at 14.9 knts Shear (0-3000m) pos: 2.7 neg: 0.9 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 49.0 deg Storm rel helicity (0-3000m) pos: 122.3 neg: -13.6 tot: 108.8 m^2/s^2 ave: 36.3 10^-3 m/s^2 rel: 0.48 Storm rel vorticity (0-3000m) horiz: 6.9 stream: 3.3 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.40 Bulk Shear: 23.76 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 ------------------------------------------------------------------------------- 500 226 17 177 19| 12.0 0.0 12.0| 52.2 0.0 52.2 104.5 0.85| 12.5 10.6 1000 234 21 192 20| 8.0 0.0 8.0|104.4 0.0 104.4 104.4 0.78| 12.8 10.0 1500 244 22 201 18| 5.5 0.0 5.5|122.3 -0.8 121.5 81.0 0.68| 12.0 8.2 2000 251 21 206 16| 4.1 0.5 4.6|122.3 -5.2 117.1 58.5 0.60| 9.5 5.7 2500 254 21 209 15| 3.3 0.7 4.0|122.3 -9.7 112.7 45.1 0.54| 8.0 4.3 3000 256 21 210 14| 2.7 0.9 3.6|122.3 -13.6 108.8 36.3 0.48| 6.9 3.3 4000 258 20 211 13| 2.5 0.7 3.1|129.6 -13.6 116.0 29.0 0.50| 5.7 2.9 5000 263 20 215 12| 2.3 0.5 2.8|135.2 -13.6 121.7 24.3 0.52| 5.0 2.6 6000 268 20 221 10| 2.1 0.4 2.5|138.7 -13.6 125.2 20.9 0.54| 4.5 2.4 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20251127.12.gif