UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121012.upa.cvt Date: 1200Z 10 DEC 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:1200Z 10 DEC 25 Station: LFRB WMO ident: 7110 Latitude: 48.45 Longitude: -4.42 Elevation: 103.00 ------------------------------------------------------------------------------- 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 103 12.6 7.6 72 5.0 9.9 275 11 285.0 286.1 282.7 303.1 6.49 1 1000 167 12.0 8.6 80 3.4 10.1 275 13 285.1 286.4 283.2 304.7 7.02 2 925 813 6.8 -0.2 61 7.0 3.6 270 13 286.3 287.0 280.4 297.9 4.07 3 850 1501 2.6 -6.4 51 9.0 -1.0 260 19 288.9 289.4 280.0 297.0 2.78 4 700 3043 -7.3 -30.3 14 23.0 -11.9 265 29 294.4 294.5 279.5 295.8 0.44 5 500 5570 -25.9 -57.9 3 32.0 -27.9 260 36 301.5 301.5 282.0 301.6 0.03 6 400 7150 -35.7 -64.7 4 29.0 -36.7 245 38 308.6 308.6 284.8 308.7 0.02 7 319 8697 -42.3 -70.5 3 28.2 -43.0 230 69 320.1 320.1 288.8 320.1 0.01 8 300 9110 -44.1 -72.1 3 28.0 -44.7 225 64 323.2 323.2 289.8 323.2 0.01 9 250 10320 -49.1 -77.1 2 28.0 -49.6 240 48 333.1 333.1 292.6 333.1 0.00 10 245 10452 -49.5 -79.5 2 30.0 -49.9 245 44 334.4 334.4 292.9 334.4 0.00 11 200 11780 -49.5 -82.5 1 33.0 -50.0 220 42 354.4 354.4 297.5 354.4 0.00 12 150 13650 -53.7 -84.7 1 31.0 -54.1 240 40 377.5 377.5 301.8 377.6 0.00 13 100 16220 -59.7 -89.7 1 30.0 -60.0 265 21 412.4 412.4 306.8 412.4 0.00 TRP 245 10452 -49.5 -79.5 2 30.0 -49.9 245 44 334.4 334.4 292.9 334.4 0.00 WND 319 8697 -42.3 -70.5 3 28.2 -43.0 230 69 320.1 320.1 288.8 320.1 0.01 Sounding variables and indices 1000-500 mb thick: 5403.00 m Freezing level: 810.61 mb = 1905.97 m = 6253.10 ft Wetbulb zero: 866.02 mb = 1349.06 m = 4426.01 ft Precipitable water: 0.41 inches Sfc-500 mean rel hum: 28.74 % Est. max temperature: 16.14 C = 61.05 F Sfc-Lift cond lev (LCL): 935.66 mb = 718.07 m = 2355.84 ft T: 7.56 C 700-500 lapse rate: 7.36 C/km ThetaE index: 8.84 C Layer 925.0- 500.0 mb Conv cond level (CCL): 846.63 mb = 1532.54 m = 5027.97 ft Mean mixing ratio: 5.38 g/kg Conv temperature: 16.58 C = 61.84 F Cap Strength: 1.69 C Lifted Index: 2.44 C Risk: None Lifted Index @300 mb: 15.88 C Lifted Index @700 mb: 1.59 C Showalter Index: 5.16 C Risk: None Total Totals Index: 48.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 28.50 C Cross Totals Index: 19.50 C K Index: -0.90 Risk: None Sweat Index: 74.00 Risk: None Energy Index: 1.00 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.56 J/kg Max Up Vert Vel: 2.67 m/s Conv Inhibition (B-): 12264.20 J/kg Cap Strength: 2.34 C Lift Cond Lev (LCL): 887.64 mb = 1148.48 m = 3767.95 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 293 at 20 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 103 275 11 11.0 -1.0 | 132 10 -7.5 6.7 1 1000 167 275 13 13.0 -1.1 | 140 9 -5.5 6.5 2 925 813 270 13 13.0 -0.0 | 144 9 -5.5 7.7 3 850 1501 260 19 18.7 3.3 | 181 11 0.2 11.0 4 700 3043 265 29 28.9 2.5 | 226 15 10.4 10.2 5 500 5570 260 36 35.5 6.3 | 231 22 17.0 13.9 6 400 7150 245 38 34.4 16.1 | 214 29 15.9 23.7 7 319 8697 230 69 52.9 44.4 | 213 62 34.4 52.0 8 300 9110 225 64 45.3 45.3 | 207 59 26.8 52.9 9 250 10320 240 48 41.6 24.0 | 216 39 23.1 31.7 10 245 10452 245 44 39.9 18.6 | 219 34 21.4 26.3 11 200 11780 220 42 27.0 32.2 | 192 41 8.5 39.8 12 150 13650 240 40 34.6 20.0 | 210 32 16.1 27.7 13 100 16220 265 21 20.9 1.8 | 194 10 2.4 9.5 Wind Parameters Mean winds (0-6000m): 262.5 at 26.7 knts Storm direction: 292.5 at 20.0 knts Shear (0-3000m) pos: 1.7 neg: 1.6 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 94.1 deg Storm rel helicity (0-3000m) pos: 51.3 neg: 0.0 tot: 51.3 m^2/s^2 ave: 17.1 10^-3 m/s^2 rel: 0.88 Storm rel vorticity (0-3000m) horiz: 3.4 stream: 3.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.13 Bulk Shear: 27.03 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 ------------------------------------------------------------------------------- 500 274 13 140 9| 0.0 2.2 2.2| 4.4 0.0 4.4 8.8 0.67| 2.8 1.9 1000 271 13 145 9| 0.0 2.6 2.6| 11.6 0.0 11.6 11.6 0.82| 3.0 2.4 1500 267 15 156 9| 0.0 3.2 3.2| 22.7 0.0 22.7 15.1 0.86| 3.6 3.1 2000 265 16 166 9| 0.8 2.4 3.3| 32.3 0.0 32.3 16.2 0.89| 3.5 3.1 2500 265 18 177 9| 1.4 1.9 3.3| 42.1 0.0 42.1 16.9 0.89| 3.5 3.1 3000 265 20 187 10| 1.7 1.6 3.3| 51.3 0.0 51.3 17.1 0.88| 3.4 3.0 4000 264 22 201 11| 1.2 1.6 2.8| 54.7 0.0 54.7 13.7 0.80| 3.0 2.4 5000 264 25 210 12| 1.0 1.6 2.6| 57.3 0.0 57.3 11.5 0.73| 2.7 2.0 6000 263 27 216 14| 0.8 1.6 2.4| 58.0 -14.8 43.3 7.2 0.54| 2.6 1.4 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20251210.12.gif