UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121700.upa.cvt Date: 0000Z 17 DEC 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:0000Z 17 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 1007 103 8.4 5.5 82 2.9 6.9 245 1 281.0 282.0 279.8 296.5 5.62 1 1000 153 9.2 3.2 66 6.0 6.3 250 3 282.4 283.2 279.4 295.8 4.81 2 925 793 3.6 1.8 88 1.8 2.8 190 5 283.0 283.8 279.6 296.1 4.71 3 850 1477 2.4 -21.6 15 24.0 -4.1 270 9 288.7 288.8 277.2 291.1 0.80 4 700 3016 -8.3 -34.3 10 26.0 -12.9 250 15 293.3 293.3 278.7 294.3 0.30 5 500 5580 -15.9 -35.9 16 20.0 -19.3 340 46 313.7 313.7 287.1 314.9 0.36 6 400 7230 -26.1 -41.1 23 15.0 -27.9 350 50 321.1 321.1 289.4 322.0 0.26 7 300 9240 -41.7 -49.7 42 8.0 -42.2 360 66 326.6 326.6 290.9 327.1 0.14 8 250 10440 -51.3 -59.3 38 8.0 -51.5 355 75 329.8 329.8 291.7 330.0 0.05 9 200 11850 -61.9 -70.9 29 9.0 -62.0 355 68 334.7 334.7 293.0 334.8 0.01 10 171 12802 -69.3 -75.3 41 6.0 -69.4 330 73 337.8 337.8 293.8 337.8 0.01 11 150 13590 -66.5 -75.5 27 9.0 -66.5 340 56 355.5 355.5 297.8 355.6 0.01 12 100 16070 -63.5 -86.5 3 23.0 -63.7 295 17 405.0 405.0 305.9 405.0 0.00 TRP 171 12802 -69.3 -75.3 41 6.0 -69.4 330 73 337.8 337.8 293.8 337.8 0.01 WND Sounding variables and indices 1000-500 mb thick: 5427.00 m Freezing level: 816.36 mb = 1822.20 m = 5978.26 ft Wetbulb zero: 894.91 mb = 1060.49 m = 3479.26 ft Precipitable water: 0.32 inches Sfc-500 mean rel hum: 25.40 % Est. max temperature: 15.53 C = 59.96 F Sfc-Lift cond lev (LCL): 963.42 mb = 458.93 m = 1505.67 ft T: 6.52 C 700-500 lapse rate: 2.96 C/km ThetaE index: 5.00 C Layer 850.0- 700.0 mb Conv cond level (CCL): 810.16 mb = 1857.55 m = 6094.26 ft Mean mixing ratio: 4.64 g/kg Conv temperature: 17.27 C = 63.08 F Cap Strength: 4.02 C Lifted Index: 16.07 C Risk: None Lifted Index @300 mb: 21.91 C Lifted Index @700 mb: 3.63 C Showalter Index: 19.47 C Risk: None Total Totals Index: 12.60 C Risk: None Vertical Totals Index: 18.30 C Cross Totals Index: -5.70 C K Index: -29.30 Risk: None Sweat Index: 64.00 Risk: None Energy Index: 4.92 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.60 J/kg Max Up Vert Vel: 3.03 m/s Conv Inhibition (B-): 12975.19 J/kg Cap Strength: 15.32 C Lift Cond Lev (LCL): 899.47 mb = 1019.42 m = 3344.51 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 344 at 16 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 1007 103 245 1 0.9 0.4 | 167 16 -3.7 16.0 1 1000 153 250 3 2.8 1.0 | 174 17 -1.8 16.6 2 925 793 190 5 0.9 4.9 | 170 21 -3.7 20.5 3 850 1477 270 9 9.0 -0.0 | 196 16 4.4 15.6 4 700 3016 250 15 14.1 5.1 | 205 23 9.5 20.7 5 500 5580 340 46 15.7 -43.2 | 338 30 11.1 -27.7 6 400 7230 350 50 8.7 -49.2 | 353 34 4.1 -33.7 7 300 9240 360 66 -0.0 -66.0 | 5 51 -4.6 -50.4 8 250 10440 355 75 6.5 -74.7 | 358 59 1.9 -59.2 9 200 11850 355 68 5.9 -67.7 | 359 52 1.3 -52.2 10 171 12802 330 73 36.5 -63.2 | 326 57 31.9 -47.7 11 150 13590 340 56 19.2 -52.6 | 339 40 14.6 -37.1 12 100 16070 295 17 15.4 -7.2 | 232 14 10.8 8.4 Wind Parameters Mean winds (0-6000m): 313.5 at 21.6 knts Storm direction: 343.5 at 16.2 knts Shear (0-3000m) pos: 1.4 neg: 1.8 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 41.0 deg Storm rel helicity (0-3000m) pos: 76.5 neg: -7.8 tot: 68.6 m^2/s^2 ave: 22.9 10^-3 m/s^2 rel: 0.53 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 2.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.07 Bulk Shear: 62.58 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 ------------------------------------------------------------------------------- 500 226 4 173 18| 0.0 3.8 3.8| 9.5 -3.0 6.5 13.0 0.31| 5.1 1.6 1000 212 4 174 19| 1.5 1.9 3.4| 31.1 -7.8 23.3 23.3 0.44| 5.4 2.4 1500 238 6 181 19| 2.8 1.3 4.1| 56.5 -7.8 48.7 32.5 0.57| 5.9 3.4 2000 249 7 186 18| 2.1 1.5 3.6| 62.4 -7.8 54.6 27.3 0.57| 5.0 2.9 2500 252 8 190 18| 1.7 1.7 3.4| 66.6 -7.8 58.8 23.5 0.54| 4.5 2.5 3000 251 9 192 19| 1.4 1.8 3.2| 76.5 -7.8 68.6 22.9 0.53| 4.4 2.3 4000 263 12 204 19| 3.3 1.4 4.6|188.0 -7.8 180.2 45.0 0.73| 5.6 4.1 5000 289 17 228 15| 4.5 1.1 5.6|339.7 -7.8 331.9 66.4 0.82| 7.0 5.7 6000 314 22 267 11| 4.6 0.9 5.5|456.8 -7.8 449.0 74.8 0.85| 7.2 6.1 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20251217.00.gif