UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121712.upa.cvt Date: 1200Z 17 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 17 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 1018 61 10.8 10.5 98 0.3 10.6 70 1 282.5 283.9 283.0 304.0 7.85 1 1000 197 9.8 9.7 99 0.1 9.7 55 1 283.0 284.3 282.9 303.8 7.57 2 925 843 6.8 4.5 85 2.3 5.6 290 7 286.3 287.3 282.3 302.3 5.71 3 850 1533 3.0 2.1 94 0.9 2.5 225 11 289.3 290.2 283.1 304.3 5.24 4 700 3082 -5.9 -9.5 76 3.6 -7.2 245 11 296.0 296.4 283.0 304.0 2.66 5 500 5650 -16.7 -46.7 6 30.0 -20.4 5 36 312.7 312.7 286.4 313.1 0.11 6 400 7290 -26.7 -43.7 18 17.0 -28.5 15 42 320.3 320.3 289.0 321.0 0.20 7 300 9300 -42.7 -50.7 41 8.0 -43.1 15 54 325.2 325.2 290.5 325.7 0.12 8 250 10500 -52.3 -60.3 38 8.0 -52.5 0 64 328.3 328.3 291.3 328.5 0.05 9 200 11910 -64.1 -72.1 33 8.0 -64.1 10 54 331.2 331.3 292.0 331.3 0.01 10 184 12414 -68.1 -76.1 31 8.0 -68.1 5 50 332.8 332.8 292.4 332.8 0.01 11 150 13650 -64.1 -85.1 4 21.0 -64.2 30 31 359.7 359.7 298.7 359.7 0.00 12 100 16140 -61.7 -90.7 1 29.0 -61.9 300 3 408.5 408.5 306.3 408.5 0.00 TRP 184 12414 -68.1 -76.1 31 8.0 -68.1 5 50 332.8 332.8 292.4 332.8 0.01 WND Sounding variables and indices 1000-500 mb thick: 5453.00 m Freezing level: 799.44 mb = 2055.13 m = 6742.49 ft Wetbulb zero: 810.84 mb = 1909.29 m = 6264.01 ft Precipitable water: 0.78 inches Sfc-500 mean rel hum: 65.59 % Est. max temperature: 16.87 C = 62.36 F Sfc-Lift cond lev (LCL): 1013.46 mb = 95.05 m = 311.83 ft T: 10.55 C 700-500 lapse rate: 4.21 C/km ThetaE index: 1.69 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 928.52 mb = 811.57 m = 2662.59 ft Mean mixing ratio: 6.75 g/kg Conv temperature: 14.41 C = 57.95 F Cap Strength: 1.76 C Lifted Index: 10.06 C Risk: None Lifted Index @300 mb: 15.73 C Lifted Index @700 mb: 1.76 C Showalter Index: 9.35 C Risk: None Total Totals Index: 38.50 C Risk: None Vertical Totals Index: 19.70 C Cross Totals Index: 18.80 C K Index: 18.20 Risk: < 20 % chance of thunderstorms Sweat Index: 83.20 Risk: None Energy Index: 1.80 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 14.00 J/kg Max Up Vert Vel: 5.29 m/s Conv Inhibition (B-): 11277.56 J/kg Cap Strength: 9.97 C Lift Cond Lev (LCL): 952.33 mb = 601.74 m = 1974.20 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 359 at 13 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 1018 61 70 1 -0.9 -0.3 | 175 13 -1.1 12.5 1 1000 197 55 1 -0.8 -0.6 | 175 12 -1.0 12.2 2 925 843 290 7 6.6 -2.4 | 211 12 6.4 10.4 3 850 1533 225 11 7.8 7.8 | 200 22 7.6 20.6 4 700 3082 245 11 10.0 4.6 | 209 20 9.8 17.5 5 500 5650 5 36 -3.1 -35.9 | 8 23 -3.3 -23.1 6 400 7290 15 42 -10.9 -40.6 | 22 30 -11.1 -27.8 7 300 9300 15 54 -14.0 -52.2 | 20 42 -14.2 -39.4 8 250 10500 0 64 -0.0 -64.0 | 0 51 -0.2 -51.2 9 200 11910 10 54 -9.4 -53.2 | 13 41 -9.6 -40.4 10 184 12414 5 50 -4.4 -49.8 | 7 37 -4.6 -37.0 11 150 13650 30 31 -15.5 -26.8 | 48 21 -15.7 -14.0 12 100 16140 300 3 2.6 -1.5 | 192 12 2.4 11.3 Wind Parameters Mean winds (0-6000m): 329.1 at 17.1 knts Storm direction: 359.1 at 12.8 knts Shear (0-3000m) pos: 0.6 neg: 2.0 tot: 2.7 10-3/s Storm rel Dir Shear (0-3000m): 34.3 deg Storm rel helicity (0-3000m) pos: 34.3 neg: -21.4 tot: 12.9 m^2/s^2 ave: 4.3 10^-3 m/s^2 rel: 0.21 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 0.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.45 Bulk Shear: 31.12 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 4 2 178 11| 0.0 4.5 4.5| 5.4 -1.0 4.3 8.6 0.37| 5.1 1.9 1000 291 4 199 12| 0.0 4.7 4.7| 16.5 -1.4 15.0 15.0 0.43| 7.2 3.1 1500 261 6 203 15| 0.0 4.1 4.1| 16.5 -21.4 -5.0 -3.3 0.10| 7.5 0.7 2000 247 7 203 17| 0.3 3.1 3.4| 22.8 -21.4 1.4 0.7 0.14| 6.0 0.8 2500 243 8 203 18| 0.5 2.5 3.0| 28.8 -21.4 7.3 2.9 0.18| 5.0 0.9 3000 243 9 204 18| 0.6 2.0 2.7| 34.3 -21.4 12.9 4.3 0.21| 4.4 0.9 4000 255 10 212 18| 2.4 1.5 4.0|119.2 -21.4 97.8 24.4 0.51| 5.3 2.7 5000 287 13 235 15| 3.7 1.2 4.9|233.0 -21.4 211.6 42.3 0.68| 6.6 4.5 6000 329 17 282 9| 4.0 1.0 5.0|332.0 -21.4 310.6 51.8 0.74| 7.2 5.3 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251217.12.gif