UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120312.upa.cvt Date: 1200Z 3 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 3 DEC 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 1009 61 12.2 8.5 78 3.7 10.2 175 5 284.6 285.8 282.9 303.8 6.91 1 1000 121 10.0 7.6 85 2.4 8.7 185 5 283.1 284.3 281.8 301.3 6.55 2 925 765 5.6 2.5 80 3.1 4.1 265 9 285.0 285.9 280.9 299.0 4.95 3 850 1449 -0.5 -1.9 90 1.4 -1.1 270 13 285.6 286.3 279.9 296.8 3.91 4 700 2975 -9.3 -19.3 44 10.0 -11.9 285 13 292.2 292.4 279.5 295.9 1.18 5 500 5470 -29.3 -39.3 37 10.0 -30.2 285 21 297.3 297.4 280.6 298.2 0.25 6 400 7020 -42.7 -50.7 41 8.0 -43.0 270 19 299.5 299.5 281.3 299.8 0.09 7 300 8940 -48.7 -72.7 5 24.0 -49.1 325 40 316.7 316.7 287.6 316.7 0.01 8 250 10120 -53.9 -79.9 3 26.0 -54.2 325 44 325.9 325.9 290.6 325.9 0.00 9 200 11540 -57.1 -87.1 1 30.0 -57.3 335 27 342.3 342.3 294.9 342.3 0.00 10 172 12493 -59.9 -88.9 1 29.0 -60.1 305 25 352.8 352.8 297.3 352.8 0.00 11 150 13360 -55.3 -86.3 1 31.0 -55.6 275 11 374.8 374.8 301.4 374.8 0.00 12 100 15910 -58.1 -88.1 1 30.0 -58.5 260 29 415.5 415.5 307.2 415.5 0.00 TRP 172 12493 -59.9 -88.9 1 29.0 -60.1 305 25 352.8 352.8 297.3 352.8 0.00 WND Sounding variables and indices 1000-500 mb thick: 5349.00 m Freezing level: 856.15 mb = 1392.93 m = 4569.94 ft Wetbulb zero: 865.73 mb = 1300.70 m = 4267.34 ft Precipitable water: 0.55 inches Sfc-500 mean rel hum: 58.58 % Est. max temperature: 13.14 C = 55.65 F Sfc-Lift cond lev (LCL): 954.20 mb = 508.27 m = 1667.54 ft T: 7.35 C 700-500 lapse rate: 8.02 C/km ThetaE index: 7.96 C Layer 1000.0- 500.0 mb Conv cond level (CCL): 906.40 mb = 929.35 m = 3049.01 ft Mean mixing ratio: 5.68 g/kg Conv temperature: 12.77 C = 54.99 F Cap Strength: 0.82 C Lifted Index: -0.43 C Risk: Thunderstorms probable Lifted Index @300 mb: 11.87 C Lifted Index @700 mb: 0.06 C Showalter Index: 1.97 C Risk: Showers probable Total Totals Index: 56.20 C Risk: Severe Thunderstorms probable Vertical Totals Index: 28.80 C Cross Totals Index: 27.40 C K Index: 16.90 Risk: < 20 % chance of thunderstorms Sweat Index: 191.00 Risk: None Energy Index: 0.28 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 93.49 J/kg Max Up Vert Vel: 13.67 m/s Conv Inhibition (B-): 5.21 J/kg Cap Strength: 0.82 C Lift Cond Lev (LCL): 919.34 mb = 814.68 m = 2672.82 ft Lev Free Conv (LFC): 884.34 mb = 1128.66 m = 3702.91 ft Equ Level (EL): 704.34 mb = 2926.47 m = 9601.15 ft B at Equ Level: 44.32 J/kg Max Parcel Lev (MPL): 354.34 mb = 7829.02 m = 25685.45 ft Wind level data Storm motion: 310 at 11 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 1009 61 175 5 -0.4 5.0 | 143 15 -8.9 12.0 1 1000 121 185 5 0.4 5.0 | 146 14 -8.0 12.0 2 925 765 265 9 9.0 0.8 | 184 8 0.5 7.8 3 850 1449 270 13 13.0 -0.0 | 213 8 4.6 7.0 4 700 2975 285 13 12.6 -3.4 | 229 5 4.1 3.6 5 500 5470 285 21 20.3 -5.4 | 263 12 11.9 1.5 6 400 7020 270 19 19.0 -0.0 | 237 13 10.6 7.0 7 300 8940 325 40 22.9 -32.8 | 331 30 14.5 -25.8 8 250 10120 325 44 25.2 -36.0 | 330 34 16.8 -29.1 9 200 11540 335 27 11.4 -24.5 | 350 18 3.0 -17.5 10 172 12493 305 25 20.5 -14.3 | 301 14 12.1 -7.4 11 150 13360 275 11 11.0 -1.0 | 203 7 2.5 6.0 12 100 15910 260 29 28.6 5.0 | 239 23 20.1 12.0 Wind Parameters Mean winds (0-6000m): 279.6 at 14.6 knts Storm direction: 309.6 at 10.9 knts Shear (0-3000m) pos: 2.7 neg: 0.0 tot: 2.7 10-3/s Storm rel Dir Shear (0-3000m): 87.7 deg Storm rel helicity (0-3000m) pos: 39.9 neg: 0.0 tot: 39.9 m^2/s^2 ave: 13.3 10^-3 m/s^2 rel: 0.76 Storm rel vorticity (0-3000m) horiz: 3.3 stream: 2.5 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 3.99 Bulk Shear: 23.41 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 ------------------------------------------------------------------------------- 500 214 6 158 13| 7.4 0.0 7.4| 22.2 0.0 22.2 44.4 0.84| 7.7 6.5 1000 248 8 172 10| 6.2 0.0 6.2| 31.3 0.0 31.3 31.3 0.78| 6.8 5.3 1500 258 9 184 9| 4.9 0.0 4.9| 36.4 0.0 36.4 24.3 0.81| 5.4 4.3 2000 264 10 191 8| 3.8 0.0 3.8| 37.7 0.0 37.7 18.8 0.79| 4.3 3.4 2500 268 11 197 8| 3.1 0.0 3.1| 38.7 0.0 38.7 15.5 0.77| 3.7 2.9 3000 271 11 202 7| 2.7 0.0 2.7| 39.9 0.0 39.9 13.3 0.76| 3.3 2.5 4000 275 12 211 7| 2.0 0.4 2.4| 43.7 0.0 43.7 10.9 0.75| 2.9 2.2 5000 278 13 223 7| 1.6 0.7 2.3| 47.6 0.0 47.6 9.5 0.72| 2.6 1.9 6000 280 15 233 7| 1.3 0.6 2.0| 49.1 -6.9 42.2 7.0 0.58| 2.5 1.4 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251203.12.gif