UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122812.upa.cvt Date: 1200Z 28 DEC 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 28 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 1016 61 8.0 1.0 61 7.0 4.8 75 7 279.9 280.6 277.2 291.1 4.04 1 1000 181 10.0 2.0 57 8.0 6.2 100 11 283.1 283.9 279.3 295.5 4.42 2 925 827 7.4 6.6 95 0.8 7.0 105 19 286.9 288.0 283.6 305.5 6.62 3 850 1522 5.4 0.6 71 4.8 3.1 105 29 291.8 292.6 283.6 305.4 4.70 4 700 3085 -3.3 -10.3 58 7.0 -5.9 120 33 298.8 299.3 284.0 306.5 2.49 5 500 5650 -21.7 -32.7 36 11.0 -23.4 125 40 306.6 306.7 284.7 308.3 0.49 6 400 7250 -35.7 -46.7 31 11.0 -36.4 135 44 308.6 308.6 285.0 309.1 0.14 7 300 9180 -49.7 -64.7 16 15.0 -50.0 125 71 315.3 315.3 287.2 315.4 0.02 8 269 9890 -53.6 -67.5 17 13.8 -53.8 130 83 319.5 319.5 288.6 319.6 0.02 9 250 10360 -56.3 -69.3 18 13.0 -56.5 125 68 322.4 322.4 289.5 322.4 0.01 10 209 11485 -60.7 -73.7 16 13.0 -60.8 130 50 332.4 332.4 292.4 332.5 0.01 11 200 11760 -58.9 -74.9 11 16.0 -59.0 140 36 339.5 339.5 294.2 339.5 0.01 12 150 13570 -56.1 -87.1 1 31.0 -56.4 185 15 373.4 373.4 301.2 373.4 0.00 13 100 16110 -59.1 -89.1 1 30.0 -59.5 140 3 413.5 413.5 306.9 413.5 0.00 TRP 209 11485 -60.7 -73.7 16 13.0 -60.8 130 50 332.4 332.4 292.4 332.5 0.01 WND 269 9890 -53.6 -67.5 17 13.8 -53.8 130 83 319.5 319.5 288.6 319.6 0.02 Sounding variables and indices 1000-500 mb thick: 5469.00 m Freezing level: 756.90 mb = 2492.14 m = 8176.21 ft Wetbulb zero: 798.69 mb = 2023.25 m = 6637.87 ft Precipitable water: 0.71 inches Sfc-500 mean rel hum: 59.78 % Est. max temperature: 18.88 C = 65.99 F Sfc-Lift cond lev (LCL): 912.78 mb = 936.29 m = 3071.79 ft T: 7.09 C 700-500 lapse rate: 7.17 C/km ThetaE index: 0.02 C Layer 850.0- 700.0 mb Conv cond level (CCL): 774.56 mb = 2270.19 m = 7448.04 ft Mean mixing ratio: 5.41 g/kg Conv temperature: 23.38 C = 74.08 F Cap Strength: 6.23 C Lifted Index: 7.40 C Risk: None Lifted Index @300 mb: 11.04 C Lifted Index @700 mb: 6.23 C Showalter Index: 3.53 C Risk: None Total Totals Index: 49.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.10 C Cross Totals Index: 22.30 C K Index: 20.70 Risk: 20-40 % chance of thunderstorms Sweat Index: 113.20 Risk: None Energy Index: 0.60 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 13.24 J/kg Max Up Vert Vel: 5.15 m/s Conv Inhibition (B-): 12270.73 J/kg Cap Strength: 7.33 C Lift Cond Lev (LCL): 903.67 mb = 1018.74 m = 3342.27 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 148 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 1016 61 75 7 -6.8 -1.8 | 345 22 5.7 -21.7 1 1000 181 100 11 -10.8 1.9 | 355 18 1.6 -17.9 2 925 827 105 19 -18.4 4.9 | 22 16 -5.9 -14.9 3 850 1522 105 29 -28.0 7.5 | 52 20 -15.6 -12.3 4 700 3085 120 33 -28.6 16.5 | 78 16 -16.2 -3.3 5 500 5650 125 40 -32.8 22.9 | 99 21 -20.3 3.1 6 400 7250 135 44 -31.1 31.1 | 121 22 -18.7 11.3 7 300 9180 125 71 -58.2 40.7 | 115 50 -45.7 20.9 8 269 9890 130 83 -63.6 53.4 | 123 61 -51.2 33.5 9 250 10360 125 68 -55.7 39.0 | 114 47 -43.3 19.2 10 209 11485 130 50 -38.3 32.1 | 115 29 -25.9 12.3 11 200 11760 140 36 -23.1 27.6 | 126 13 -10.7 7.7 12 150 13570 185 15 1.3 14.9 | 290 15 13.7 -4.9 13 100 16110 140 3 -1.9 2.3 | 329 20 10.5 -17.5 Wind Parameters Mean winds (0-6000m): 118.0 at 31.2 knts Storm direction: 148.0 at 23.4 knts Shear (0-3000m) pos: 4.9 neg: 0.0 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 92.5 deg Storm rel helicity (0-3000m) pos: 134.9 neg: 0.0 tot: 134.9 m^2/s^2 ave: 45.0 10^-3 m/s^2 rel: 0.88 Storm rel vorticity (0-3000m) horiz: 5.5 stream: 4.9 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.25 Bulk Shear: 52.88 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 ------------------------------------------------------------------------------- 500 100 12 359 18| 10.4 0.0 10.4| 39.0 0.0 39.0 77.9 0.78| 10.5 8.2 1000 103 16 9 17| 8.6 0.0 8.6| 67.4 0.0 67.4 67.4 0.86| 8.7 7.5 1500 104 19 21 16| 8.0 0.0 8.0| 96.4 0.0 96.4 64.3 0.87| 8.1 7.1 2000 105 22 31 17| 6.4 0.0 6.4|109.3 0.0 109.3 54.7 0.87| 6.8 5.9 2500 107 24 38 16| 5.5 0.0 5.5|122.1 0.0 122.1 48.9 0.88| 6.0 5.3 3000 110 25 44 16| 4.9 0.0 4.9|134.9 0.0 134.9 45.0 0.88| 5.5 4.9 4000 113 27 54 16| 4.0 0.0 4.0|147.0 0.0 147.0 36.8 0.89| 4.5 4.0 5000 116 29 63 16| 3.5 0.0 3.5|159.5 0.0 159.5 31.9 0.88| 3.9 3.5 6000 118 31 71 16| 3.2 0.0 3.2|178.5 0.0 178.5 29.8 0.88| 3.6 3.2 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20251228.12.gif