UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121900.upa.cvt Date: 0000Z 19 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:0000Z 19 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 1012 61 12.0 11.7 98 0.3 11.9 185 15 284.2 285.7 284.5 307.8 8.56 1 1000 148 13.0 9.7 80 3.3 11.1 190 17 286.1 287.5 284.3 307.2 7.57 2 925 803 10.8 5.8 71 5.0 8.1 240 35 290.4 291.5 284.7 308.2 6.26 3 850 1501 5.6 2.5 80 3.1 4.1 230 25 292.0 293.0 284.4 307.6 5.39 4 700 3066 -1.7 -3.3 89 1.6 -2.4 215 31 300.6 301.4 286.6 313.5 4.28 5 500 5660 -17.5 -18.1 95 0.6 -17.7 220 35 311.7 312.1 288.0 317.7 1.84 6 400 7300 -27.1 -28.4 89 1.3 -27.3 210 48 319.8 319.9 289.6 323.0 0.92 7 300 9310 -43.7 -46.4 74 2.7 -43.9 215 46 323.8 323.8 290.1 324.5 0.20 8 250 10500 -54.7 -58.1 66 3.4 -54.8 225 42 324.7 324.8 290.3 325.0 0.06 9 200 11890 -66.5 -69.8 63 3.3 -66.5 225 48 327.4 327.4 291.0 327.5 0.02 10 190 12199 -67.5 -70.9 62 3.4 -67.5 240 42 330.7 330.7 291.9 330.7 0.01 11 150 13630 -64.7 -69.1 55 4.4 -64.7 230 40 358.6 358.6 298.4 358.7 0.02 12 100 16130 -64.3 -77.3 15 13.0 -64.4 250 42 403.5 403.5 305.7 403.5 0.01 TRP 190 12199 -67.5 -70.9 62 3.4 -67.5 240 42 330.7 330.7 291.9 330.7 0.01 WND Sounding variables and indices 1000-500 mb thick: 5512.00 m Freezing level: 734.93 mb = 2701.55 m = 8863.24 ft Wetbulb zero: 756.30 mb = 2442.44 m = 8013.17 ft Precipitable water: 1.03 inches Sfc-500 mean rel hum: 86.15 % Est. max temperature: 19.59 C = 67.26 F Sfc-Lift cond lev (LCL): 1007.54 mb = 93.22 m = 305.84 ft T: 12.37 C 700-500 lapse rate: 6.09 C/km ThetaE index: 0.62 C Layer 850.0- 700.0 mb Conv cond level (CCL): 858.50 mb = 1418.90 m = 4655.13 ft Mean mixing ratio: 6.94 g/kg Conv temperature: 19.67 C = 67.40 F Cap Strength: 3.50 C Lifted Index: 6.21 C Risk: None Lifted Index @300 mb: 11.53 C Lifted Index @700 mb: 3.50 C Showalter Index: 6.33 C Risk: None Total Totals Index: 43.10 C Risk: None Vertical Totals Index: 23.10 C Cross Totals Index: 20.00 C K Index: 24.00 Risk: 20-40 % chance of thunderstorms Sweat Index: 115.00 Risk: None Energy Index: 2.03 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.09 J/kg Max Up Vert Vel: 4.26 m/s Conv Inhibition (B-): 9035.29 J/kg Cap Strength: 6.08 C Lift Cond Lev (LCL): 905.53 mb = 978.60 m = 3210.59 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 251 at 23 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 1012 61 185 15 1.3 14.9 | 110 22 -20.4 7.5 1 1000 148 190 17 3.0 16.7 | 116 21 -18.8 9.3 2 925 803 240 35 30.3 17.5 | 221 13 8.6 10.0 3 850 1501 230 25 19.2 16.1 | 163 9 -2.6 8.6 4 700 3066 215 31 17.8 25.4 | 168 18 -3.9 17.9 5 500 5660 220 35 22.5 26.8 | 182 19 0.8 19.3 6 400 7300 210 48 24.0 41.6 | 184 34 2.3 34.1 7 300 9310 215 46 26.4 37.7 | 189 31 4.7 30.2 8 250 10500 225 42 29.7 29.7 | 200 24 8.0 22.2 9 200 11890 225 48 33.9 33.9 | 205 29 12.2 26.5 10 190 12199 240 42 36.4 21.0 | 227 20 14.7 13.5 11 150 13630 230 40 30.6 25.7 | 206 20 8.9 18.2 12 100 16130 250 42 39.5 14.4 | 249 19 17.8 6.9 Wind Parameters Mean winds (0-6000m): 221.0 at 30.6 knts Storm direction: 251.0 at 23.0 knts Shear (0-3000m) pos: 4.3 neg: 2.0 tot: 6.2 10-3/s Storm rel Dir Shear (0-3000m): 57.6 deg Storm rel helicity (0-3000m) pos: 123.9 neg: -26.0 tot: 97.9 m^2/s^2 ave: 32.6 10^-3 m/s^2 rel: 0.40 Storm rel vorticity (0-3000m) horiz: 8.6 stream: 3.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.54 Bulk Shear: 16.88 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 ------------------------------------------------------------------------------- 500 206 21 134 17| 19.1 0.0 19.1| 83.1 0.0 83.1 166.3 0.92| 19.9 18.3 1000 227 27 169 11| 12.8 0.0 12.8|121.6 -8.5 113.1 113.1 0.77| 17.5 13.5 1500 229 27 174 10| 8.5 2.4 10.9|121.6 -25.2 96.3 64.2 0.48| 14.1 6.7 2000 229 27 172 10| 6.4 1.9 8.3|123.3 -25.2 98.1 49.0 0.46| 11.3 5.2 2500 227 27 171 11| 5.1 1.8 7.0|123.9 -25.2 98.7 39.5 0.43| 9.7 4.2 3000 225 28 170 12| 4.3 2.0 6.2|123.9 -26.0 97.9 32.6 0.40| 8.6 3.5 4000 223 29 170 14| 3.4 1.5 4.9|132.9 -26.0 106.9 26.7 0.42| 6.7 2.8 5000 221 30 172 15| 2.9 1.2 4.1|142.2 -26.0 116.1 23.2 0.44| 5.6 2.5 6000 221 31 174 16| 2.5 1.2 3.7|151.1 -26.0 125.0 20.8 0.44| 5.0 2.2 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251219.00.gif