UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for U1946... Searching the city database file for: U1946 ... Date:1200Z 4 DEC 25 Station: U1946 WMO ident: 21946 Latitude: 70.62 Longitude: 147.90 ------------------------------------------------------------------------------- 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 1008 42 -33.7 -37.4 69 3.7 -33.8 220 1 238.9 238.9 238.8 239.3 0.15 1 1000 99 -27.9 -32.1 67 4.2 -28.2 210 5 245.2 245.3 245.0 246.0 0.26 2 989 179 -24.5 -28.3 71 3.8 -24.9 211 7 249.4 249.5 249.0 250.5 0.38 3 983 223 -20.5 -24.1 73 3.6 -21.0 211 8 253.9 254.0 253.3 255.4 0.55 4 960 399 -16.3 -19.2 78 2.9 -16.8 213 12 259.9 260.0 258.9 262.2 0.87 5 958 414 -15.9 -19.0 77 3.1 -16.4 213 13 260.4 260.6 259.3 262.9 0.89 6 935 596 -17.9 -24.9 54 7.0 -18.8 214 17 260.2 260.3 258.5 261.7 0.54 7 925 676 -18.1 -25.1 54 7.0 -19.1 215 19 260.8 260.9 258.9 262.3 0.54 8 886 995 -20.5 -29.5 44 9.0 -21.5 291 29 261.5 261.6 259.2 262.6 0.37 9 850 1298 -25.5 -35.5 39 10.0 -26.3 5 38 259.4 259.5 257.2 260.1 0.22 10 811 1635 -30.1 -44.1 24 14.0 -30.8 324 38 258.1 258.1 255.8 258.3 0.09 11 747 2214 -35.1 -52.1 16 17.0 -35.6 252 38 258.8 258.8 256.2 258.9 0.04 12 744 2242 -35.1 -52.1 16 17.0 -35.6 248 38 259.1 259.1 256.4 259.2 0.04 13 700 2662 -39.9 -55.9 17 16.0 -40.2 195 38 258.3 258.3 255.8 258.4 0.03 14 669 2968 -44.5 -59.5 17 15.0 -44.7 256.5 256.5 254.3 256.6 0.02 15 625 3422 -46.7 -61.7 17 15.0 -46.9 259.0 259.0 256.4 259.1 0.02 16 541 4379 -46.7 -61.7 17 15.0 -46.9 269.9 269.9 264.6 270.0 0.02 TRP WND Sounding variables and indices Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.04 inches Sfc-500 mean rel hum: 29.27 % Est. max temperature: -12.64 C = 9.25 F Sfc-Lift cond lev (LCL): 946.04 mb = 508.36 m = 1667.81 ft T: -16.93 C ThetaE index: 4.28 C Layer 850.0- 747.0 mb Conv cond level (CCL): 1000.00 mb = 99.00 m = 324.80 ft Mean mixing ratio: 0.57 g/kg Conv temperature: -23.10 C = -9.58 F Cap Strength: 10.15 C Lifted Index @700 mb: 0.74 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 76.70 J/kg Max Up Vert Vel: 12.39 m/s Conv Inhibition (B-): 222.40 J/kg Cap Strength: 9.94 C Lift Cond Lev (LCL): 892.80 mb = 938.49 m = 3079.00 ft Lev Free Conv (LFC): 677.80 mb = 2880.01 m = 9448.74 ft Equ Level (EL): 647.80 mb = 3183.04 m = 10442.93 ft B at Equ Level: 76.47 J/kg Max Parcel Lev (MPL): 577.80 mb = 3942.70 m = 12935.20 ft Wind level data Storm motion: 310 at 22 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 1008 42 220 1 0.6 0.8 | 132 22 -16.3 14.9 1 1000 99 210 5 2.5 4.3 | 142 23 -14.5 18.5 2 925 676 215 19 10.9 15.6 | 168 30 -6.1 29.7 3 850 1298 5 38 -3.3 -37.9 | 41 31 -20.3 -23.7 4 700 2662 195 38 9.8 36.7 | 172 51 -7.1 50.9 Wind Parameters Mean winds (0-6000m): 279.8 at 29.5 knts Storm direction: 309.8 at 22.1 knts Shear (0-3000m) pos: 9.9 neg: 16.5 tot: 26.4 10-3/s Storm rel Dir Shear (0-3000m): 39.6 deg Storm rel helicity (0-3000m) pos: 359.1 neg: -697.2 tot: -338.1 m^2/s^2 ave: -130.0 10^-3 m/s^2 rel: -0.09 Storm rel vorticity (0-3000m) horiz: 39.8 stream: -3.6 10^-3/s Energy-Hel index: 0.17 Bulk Rich Number: 0.78 Bulk Shear: 97.89 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 ------------------------------------------------------------------------------- 500 213 10 152 25| 0.0 15.2 15.2| 87.6 0.0 87.6 175.1 0.90| 15.2 13.7 1000 241 16 172 22| 17.5 7.6 25.1|259.4 0.0 259.4 259.4 0.86| 29.8 25.5 1500 321 23 38 4| 16.5 5.1 21.5|359.1 -88.5 270.6 180.4 0.57| 37.7 21.7 2000 309 27 307 4| 12.3 13.9 26.3|359.1-272.2 86.9 43.4 0.16| 39.0 6.2 2500 285 29 238 13| 9.9 16.5 26.4|359.1-601.3-242.2 -96.9 -0.05| 39.7 -2.2 3000 NO DATA | 9.9 16.5 26.4| | 4000 NO DATA | 9.9 16.5 26.4| | 5000 NO DATA | 9.9 16.5 26.4| | 6000 NO DATA | 9.9 16.5 26.4| | Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20251204.12.gif