UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122512.upa.cvt Date: 1200Z 25 DEC 25 Searching for UIBB... Searching the city database file for: UIBB ... Date:1200Z 25 DEC 25 Station: UIBB WMO ident: 30309 Latitude: 56.07 Longitude: 101.83 Elevation: 489.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 169 SFC 968 489 -14.7 -17.2 81 2.5 -15.2 170 7 260.9 261.0 260.0 263.7 1.02 2 964 514 -15.5 -18.6 77 3.1 -16.0 180 8 260.4 260.5 259.3 262.9 0.91 3 925 764 -10.7 -12.5 87 1.8 -11.2 275 23 268.4 268.6 266.5 272.7 1.58 4 914 856 -10.5 -12.2 87 1.7 -10.9 276 23 269.5 269.8 267.4 274.0 1.64 5 850 1412 -12.5 -15.1 81 2.6 -13.1 285 25 273.1 273.3 269.3 277.0 1.39 6 814 1741 -14.5 -17.4 79 2.9 -15.1 274.3 274.5 269.8 277.8 1.20 TRP WND Sounding variables and indices Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.09 inches Sfc-500 mean rel hum: 82.53 % Est. max temperature: -1.50 C = 29.30 F Sfc-Lift cond lev (LCL): 929.47 mb = 734.80 m = 2410.73 ft T: -11.26 C ThetaE index: 0.79 C Layer 964.0- 925.0 mb Conv cond level (CCL): 968.00 mb = 489.00 m = 1604.31 ft Mean mixing ratio: 1.42 g/kg Conv temperature: -13.28 C = 8.10 F Cap Strength: 5.17 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 38.26 J/kg Max Up Vert Vel: 8.75 m/s Conv Inhibition (B-): 123.80 J/kg Cap Strength: 5.10 C Lift Cond Lev (LCL): 887.90 mb = 1077.90 m = 3536.36 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 306 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 ---------------------------------------------------------- 0 968 489 170 7 -1.2 6.9 | 139 21 -13.9 16.0 1 925 764 275 23 22.9 -2.0 | 235 12 10.2 7.1 2 850 1412 285 25 24.1 -6.5 | 257 12 11.4 2.7 Wind Parameters Mean winds (0-6000m): 275.7 at 20.9 knts Storm direction: 305.7 at 15.6 knts Shear (0-3000m) pos: 27.5 neg: 0.0 tot: 27.5 10-3/s Storm rel Dir Shear (0-3000m): 117.9 deg Storm rel helicity (0-3000m) pos: 150.4 neg: 0.0 tot: 150.4 m^2/s^2 ave: 167.1 10^-3 m/s^2 rel: 0.95 Storm rel vorticity (0-3000m) horiz: 20.8 stream: 19.7 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 22.07 Bulk Shear: 1.73 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 ------------------------------------------------------------------------------- 500 268 18 210 11| 27.5 0.0 27.5|141.4 0.0 141.4 282.7 0.94| 34.4 32.5 1000 NO DATA | 27.5 0.0 27.5| | 1500 NO DATA | 27.5 0.0 27.5| | 2000 NO DATA | 27.5 0.0 27.5| | 2500 NO DATA | 27.5 0.0 27.5| | 3000 NO DATA | 27.5 0.0 27.5| | 4000 NO DATA | 27.5 0.0 27.5| | 5000 NO DATA | 27.5 0.0 27.5| | 6000 NO DATA | 27.5 0.0 27.5| | Wrote GIF file: /home/apache/climate/data/raob//UIBB/skewt/UIBB.skewt.20251225.12.gif