UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121300.upa.cvt Date: 0000Z 13 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:0000Z 13 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 1019 61 7.2 6.9 98 0.3 7.1 140 5 278.8 279.9 279.3 295.5 6.13 1 1000 203 12.4 9.7 84 2.7 10.9 165 13 285.5 286.9 284.0 306.6 7.57 2 925 855 9.6 5.4 75 4.2 7.4 185 7 289.1 290.2 284.0 306.4 6.08 3 850 1553 5.8 0.8 70 5.0 3.4 260 11 292.2 293.1 283.8 306.1 4.77 4 700 3110 -4.5 -7.5 80 3.0 -5.7 230 13 297.5 298.1 284.1 306.9 3.11 5 500 5680 -19.5 -25.5 59 6.0 -20.8 210 25 309.3 309.4 286.2 312.5 0.96 6 400 7300 -30.7 -34.9 67 4.2 -31.2 210 21 315.1 315.2 287.7 316.8 0.49 7 300 9280 -45.7 -51.7 51 6.0 -46.0 205 23 320.9 321.0 289.2 321.4 0.11 8 250 10470 -54.3 -63.3 32 9.0 -54.5 190 13 325.3 325.3 290.4 325.5 0.03 9 208 11627 -64.1 -68.4 56 4.3 -64.1 240 13 327.6 327.6 291.0 327.6 0.02 10 200 11870 -61.5 -67.5 45 6.0 -61.6 215 19 335.4 335.4 293.2 335.5 0.02 11 150 13660 -57.9 -76.9 7 19.0 -58.2 210 29 370.3 370.3 300.7 370.4 0.01 12 100 16180 -62.9 -91.9 1 29.0 -63.1 200 21 406.2 406.2 306.0 406.2 0.00 TRP 208 11627 -64.1 -68.4 56 4.3 -64.1 240 13 327.6 327.6 291.0 327.6 0.02 WND Sounding variables and indices 1000-500 mb thick: 5477.00 m Freezing level: 765.53 mb = 2429.76 m = 7971.55 ft Wetbulb zero: 794.15 mb = 2098.01 m = 6883.14 ft Precipitable water: 0.86 inches Sfc-500 mean rel hum: 72.84 % Est. max temperature: 19.84 C = 67.71 F Sfc-Lift cond lev (LCL): 1014.32 mb = 95.71 m = 314.01 ft T: 8.47 C 700-500 lapse rate: 5.84 C/km ThetaE index: 0.52 C Layer 925.0- 700.0 mb Conv cond level (CCL): 848.24 mb = 1569.60 m = 5149.55 ft Mean mixing ratio: 6.78 g/kg Conv temperature: 20.71 C = 69.27 F Cap Strength: 2.67 C Lifted Index: 5.70 C Risk: None Lifted Index @300 mb: 11.12 C Lifted Index @700 mb: 1.87 C Showalter Index: 5.32 C Risk: None Total Totals Index: 45.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.30 C Cross Totals Index: 20.30 C K Index: 23.10 Risk: 20-40 % chance of thunderstorms Sweat Index: 56.60 Risk: None Energy Index: 1.27 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.37 J/kg Max Up Vert Vel: 6.54 m/s Conv Inhibition (B-): 10403.19 J/kg Cap Strength: 5.58 C Lift Cond Lev (LCL): 923.53 mb = 868.12 m = 2848.11 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 249 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 1019 61 140 5 -3.2 3.8 | 89 14 -13.9 -0.3 1 1000 203 165 13 -3.4 12.6 | 121 16 -14.0 8.4 2 925 855 185 7 0.6 7.0 | 106 10 -10.1 2.8 3 850 1553 260 11 10.8 1.9 | 356 2 0.2 -2.2 4 700 3110 230 13 10.0 8.4 | 170 4 -0.7 4.2 5 500 5680 210 25 12.5 21.7 | 186 18 1.8 17.5 6 400 7300 210 21 10.5 18.2 | 179 14 -0.2 14.0 7 300 9280 205 23 9.7 20.8 | 177 17 -1.0 16.7 8 250 10470 190 13 2.3 12.8 | 136 12 -8.4 8.6 9 208 11627 240 13 11.3 6.5 | 194 2 0.6 2.3 10 200 11870 215 19 10.9 15.6 | 181 11 0.2 11.4 11 150 13660 210 29 14.5 25.1 | 190 21 3.8 21.0 12 100 16180 200 21 7.2 19.7 | 167 16 -3.5 15.6 Wind Parameters Mean winds (0-6000m): 218.7 at 15.3 knts Storm direction: 248.7 at 11.5 knts Shear (0-3000m) pos: 2.4 neg: 1.1 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 82.4 deg Storm rel helicity (0-3000m) pos: 36.9 neg: -12.2 tot: 24.7 m^2/s^2 ave: 8.2 10^-3 m/s^2 rel: 0.03 Storm rel vorticity (0-3000m) horiz: 5.8 stream: 0.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.10 Bulk Shear: 19.39 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 ------------------------------------------------------------------------------- 500 167 11 115 15| 6.6 0.0 6.6| 32.9 -4.1 28.8 57.7 0.61| 12.3 7.5 1000 174 9 114 13| 4.0 0.0 4.0| 36.1 -10.1 26.0 26.0 0.37| 9.3 3.4 1500 194 9 121 10| 4.9 0.0 4.9| 36.9 -11.4 25.5 17.0 0.12| 9.5 1.2 2000 213 10 128 7| 3.6 0.5 4.2| 36.9 -11.6 25.3 12.6 0.09| 7.6 0.7 2500 222 10 133 5| 2.9 0.8 3.8| 36.9 -11.8 25.1 10.0 0.05| 6.5 0.3 3000 225 11 138 5| 2.4 1.1 3.5| 36.9 -12.2 24.7 8.2 0.03| 5.8 0.2 4000 226 12 151 5| 1.8 1.4 3.2| 39.5 -12.2 27.3 6.8 0.07| 5.0 0.4 5000 223 13 165 6| 1.5 1.7 3.1| 40.0 -12.7 27.3 5.5 0.06| 4.6 0.3 6000 219 15 172 8| 1.2 1.6 2.8| 40.0 -16.8 23.2 3.9 0.04| 4.2 0.2 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251213.00.gif