UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122412.upa.cvt Date: 1200Z 24 DEC 25 Searching for CYCB... Searching the city database file for: CYCB ... Date:1200Z 24 DEC 25 Station: CYCB WMO ident: 71925 Latitude: 69.10 Longitude: -105.12 Elevation: 27.00 ------------------------------------------------------------------------------- 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 1005 27 -17.7 -19.5 86 1.8 -18.0 305 12 255.1 255.2 254.8 257.3 0.81 1 1000 70 -17.7 -20.0 82 2.3 -18.1 295 9 255.4 255.6 255.1 257.6 0.78 2 987 168 -18.1 -21.3 76 3.2 -18.6 303 12 256.0 256.1 255.4 257.9 0.71 3 925 648 -22.7 -22.7 100 0.0 -22.7 325 16 256.1 256.2 255.4 257.9 0.67 4 908 784 -23.9 -24.1 98 0.2 -23.9 305 16 256.2 256.3 255.4 257.9 0.60 5 893 906 -22.3 -24.2 84 1.9 -22.5 286 16 259.1 259.2 257.7 260.8 0.60 6 861 1173 -23.5 -25.0 87 1.5 -23.7 323 15 260.6 260.7 258.8 262.2 0.58 7 850 1267 -22.9 -24.2 89 1.3 -23.1 320 17 262.2 262.3 260.2 263.9 0.63 8 834 1407 -20.3 -23.0 79 2.7 -20.7 333 19 266.3 266.4 263.5 268.4 0.72 9 821 1523 -20.1 -22.8 79 2.7 -20.5 344 20 267.7 267.9 264.5 269.9 0.74 10 800 1716 -18.9 -24.9 59 6.0 -19.8 342 21 271.0 271.1 266.6 272.9 0.63 11 793 1781 -18.9 -28.9 41 10.0 -20.3 341 22 271.7 271.8 266.7 273.0 0.44 12 790 1810 -18.5 -43.5 9 25.0 -20.7 341 22 272.4 272.4 266.5 272.7 0.10 13 788 1829 -18.5 -40.5 13 22.0 -20.6 340 22 272.6 272.6 266.7 273.1 0.14 14 779 1914 -18.9 -28.9 41 10.0 -20.3 273.1 273.1 267.6 274.4 0.45 15 775 1952 -19.1 -29.1 41 10.0 -20.4 273.3 273.3 267.7 274.6 0.44 TRP WND Sounding variables and indices Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.06 inches Sfc-500 mean rel hum: 78.88 % Est. max temperature: -11.35 C = 11.58 F Sfc-Lift cond lev (LCL): 975.80 mb = 252.29 m = 827.72 ft T: -18.91 C ThetaE index: 0.27 C Layer 790.0- 788.0 mb Conv cond level (CCL): 930.09 mb = 607.42 m = 1992.81 ft Mean mixing ratio: 0.69 g/kg Conv temperature: -16.69 C = 1.96 F Cap Strength: 15.04 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.27 J/kg Max Up Vert Vel: 2.13 m/s Conv Inhibition (B-): 323.95 J/kg Cap Strength: 14.82 C Lift Cond Lev (LCL): 931.37 mb = 597.24 m = 1959.41 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 352 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 1005 27 305 12 9.8 -6.9 | 235 10 8.0 5.5 1 1000 70 295 9 8.2 -3.8 | 217 11 6.4 8.6 2 969 305 315 17 12.0 -12.0 | 268 10 10.2 0.4 3 930 610 325 16 9.2 -13.1 | 275 7 7.4 -0.7 4 925 648 325 16 9.2 -13.1 | 275 7 7.4 -0.7 5 892 914 285 16 15.5 -4.1 | 239 16 13.7 8.3 6 856 1219 330 15 7.5 -13.0 | 276 6 5.7 -0.6 7 850 1267 320 17 10.9 -13.0 | 274 9 9.1 -0.6 8 820 1524 345 20 5.2 -19.3 | 334 8 3.4 -6.9 9 786 1829 340 22 7.5 -20.7 | 325 10 5.7 -8.3 Wind Parameters Mean winds (0-6000m): 321.8 at 16.7 knts Storm direction: 351.8 at 12.5 knts Shear (0-3000m) pos: 6.5 neg: 2.0 tot: 8.5 10-3/s Storm rel Dir Shear (0-3000m): 89.7 deg Storm rel helicity (0-3000m) pos: 55.2 neg: -27.3 tot: 27.9 m^2/s^2 ave: 15.5 10^-3 m/s^2 rel: 0.29 Storm rel vorticity (0-3000m) horiz: 13.0 stream: 3.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.59 Bulk Shear: 1.43 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 ------------------------------------------------------------------------------- 500 313 14 254 9| 6.2 0.0 6.2| 20.7 -3.6 17.2 34.4 0.62| 11.0 6.8 1000 310 15 255 10| 3.1 3.0 6.0| 30.0 -24.2 5.8 5.8 0.09| 13.5 1.2 1500 316 16 264 9| 6.5 2.0 8.5| 55.2 -24.2 31.0 20.7 0.34| 14.6 4.9 2000 NO DATA | 6.5 2.0 8.5| | 2500 NO DATA | 6.5 2.0 8.5| | 3000 NO DATA | 6.5 2.0 8.5| | 4000 NO DATA | 6.5 2.0 8.5| | 5000 NO DATA | 6.5 2.0 8.5| | 6000 NO DATA | 6.5 2.0 8.5| | Wrote GIF file: /home/apache/climate/data/raob//CYCB/skewt/CYCB.skewt.20251224.12.gif