UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for UHNN... Searching the city database file for: UHNN ... Date:1200Z 9 DEC 25 Station: UHNN WMO ident: 31369 Latitude: 53.15 Longitude: 140.70 Elevation: 68.00 ------------------------------------------------------------------------------- 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 1004 68 -16.9 -20.1 76 3.2 -17.4 360 1 256.0 256.1 255.5 258.0 0.77 1 1000 74 -16.7 -19.8 77 3.1 -17.2 335 3 256.5 256.6 255.9 258.6 0.79 2 976 257 -15.9 -18.9 78 3.0 -16.4 315 8 259.0 259.2 258.2 261.4 0.88 3 925 658 -18.9 -22.2 75 3.3 -19.4 270 19 260.0 260.1 258.6 261.9 0.70 4 868 1128 -23.5 -26.6 76 3.1 -23.9 270 24 260.0 260.0 258.2 261.4 0.50 5 850 1282 -22.9 -25.8 77 2.9 -23.2 270 25 262.2 262.2 260.0 263.7 0.55 6 788 1836 -23.7 -28.0 68 4.3 -24.2 262 20 267.0 267.1 263.5 268.4 0.48 7 700 2694 -27.9 -33.9 56 6.0 -28.5 250 13 271.6 271.6 266.4 272.5 0.31 8 641 3322 -31.1 -38.1 50 7.0 -31.6 274.9 274.9 268.4 275.6 0.22 9 572 4120 -37.1 -44.1 48 7.0 -37.4 276.9 277.0 269.5 277.4 0.13 10 518 4802 -39.5 -47.5 42 8.0 -39.8 282.0 282.0 272.5 282.3 0.10 TRP WND Sounding variables and indices Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.08 inches Sfc-500 mean rel hum: 60.88 % Est. max temperature: -11.19 C = 11.86 F Sfc-Lift cond lev (LCL): 952.75 mb = 436.89 m = 1433.33 ft T: -17.25 C ThetaE index: 0.54 C Layer 868.0- 850.0 mb Conv cond level (CCL): 892.83 mb = 919.77 m = 3017.58 ft Mean mixing ratio: 0.77 g/kg Conv temperature: -12.87 C = 8.83 F Cap Strength: 17.35 C Lifted Index @700 mb: 9.93 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.95 J/kg Max Up Vert Vel: 4.46 m/s Conv Inhibition (B-): 1482.35 J/kg Cap Strength: 16.80 C Lift Cond Lev (LCL): 905.72 mb = 813.74 m = 2669.71 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 297 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 1004 68 360 1 -0.0 -1.0 | 113 13 -11.9 5.1 1 1000 74 335 3 1.3 -2.7 | 108 11 -10.6 3.4 2 925 658 270 19 19.0 -0.0 | 230 9 7.1 6.1 3 850 1282 270 25 25.0 -0.0 | 245 14 13.1 6.1 4 700 2694 250 13 12.2 4.4 | 182 11 0.3 10.5 Wind Parameters Mean winds (0-6000m): 267.1 at 17.8 knts Storm direction: 297.1 at 13.3 knts Shear (0-3000m) pos: 0.0 neg: 3.0 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 68.7 deg Storm rel helicity (0-3000m) pos: 10.5 neg: -49.4 tot: -38.9 m^2/s^2 ave: -15.0 10^-3 m/s^2 rel: -0.19 Storm rel vorticity (0-3000m) horiz: 8.5 stream: -1.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.80 Bulk Shear: 12.44 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 ------------------------------------------------------------------------------- 500 288 9 136 4| 0.0 16.9 16.9| 1.2 -8.3 -7.1 -14.2 0.10| 20.4 2.0 1000 273 15 208 6| 0.0 11.8 11.8| 7.4 -9.3 -1.9 -1.9 0.13| 14.2 1.8 1500 271 18 226 8| 0.0 7.8 7.8| 10.5 -18.6 -8.1 -5.4 0.06| 11.1 0.6 2000 269 18 226 9| 0.0 4.8 4.8| 10.5 -33.5 -23.0 -11.5 -0.07| 9.6 -0.7 2500 267 18 222 9| 0.0 3.0 3.0| 10.5 -46.9 -36.3 -14.5 -0.18| 8.7 -1.5 3000 NO DATA | 0.0 3.0 3.0| | 4000 NO DATA | 0.0 3.0 3.0| | 5000 NO DATA | 0.0 3.0 3.0| | 6000 NO DATA | 0.0 3.0 3.0| | Wrote GIF file: /home/apache/climate/data/raob//UHNN/skewt/UHNN.skewt.20251209.12.gif