UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121112.upa.cvt Date: 1200Z 11 DEC 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 11 DEC 25 Station: U8661 WMO ident: 28661 Latitude: 55.47 Longitude: 65.40 ------------------------------------------------------------------------------- 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 1020 71 -11.9 -17.9 61 6.0 -13.0 200 7 259.8 259.9 258.9 262.3 0.92 1 1000 222 -13.1 -20.1 56 7.0 -14.3 205 27 260.0 260.2 258.8 262.2 0.77 2 992 283 -12.9 -20.9 51 8.0 -14.3 209 29 260.8 261.0 259.3 262.9 0.73 3 980 377 -10.5 -19.5 48 9.0 -12.3 214 31 264.2 264.3 262.1 266.5 0.83 4 973 432 -7.7 -18.7 41 11.0 -10.1 217 32 267.5 267.7 264.7 270.1 0.90 5 953 594 -5.7 -27.7 16 22.0 -9.6 227 36 271.2 271.2 266.3 272.4 0.41 6 944 669 -5.9 -29.9 13 24.0 -10.0 231 38 271.7 271.7 266.5 272.7 0.34 7 925 828 -5.7 -29.7 13 24.0 -9.9 240 42 273.5 273.5 267.7 274.5 0.35 8 894 1095 -6.3 -33.3 10 27.0 -10.6 244 41 275.5 275.6 268.9 276.3 0.26 9 869 1317 -4.7 -38.7 5 34.0 -9.8 247 41 279.4 279.5 271.1 280.0 0.15 10 850 1490 -5.9 -42.9 4 37.0 -10.8 250 40 280.0 280.0 271.3 280.3 0.10 11 763 2329 -10.3 -40.3 7 30.0 -14.3 247 44 284.0 284.0 273.7 284.5 0.15 12 700 2991 -12.3 -48.3 3 36.0 -16.2 245 48 288.9 288.9 276.2 289.1 0.07 13 664 3393 -13.5 -48.5 3 35.0 -17.3 291.9 291.9 277.7 292.2 0.07 14 603 4118 -19.1 -49.1 5 30.0 -21.8 293.6 293.6 278.6 293.9 0.07 15 586 4331 -20.1 -31.1 37 11.0 -21.8 294.8 294.9 279.7 296.4 0.49 16 523 5163 -26.7 -30.6 70 3.9 -27.2 296.6 296.7 280.7 298.5 0.57 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: 18.56 % Est. max temperature: 7.73 C = 45.91 F Sfc-Lift cond lev (LCL): 925.72 mb = 821.92 m = 2696.54 ft T: -5.71 C ThetaE index: 0.09 C Layer 1000.0- 992.0 mb Conv cond level (CCL): None Cap Strength: 23.47 C Lifted Index @700 mb: 19.29 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 71.47 J/kg Max Up Vert Vel: 11.96 m/s Conv Inhibition (B-): 2923.67 J/kg Cap Strength: 23.39 C Lift Cond Lev (LCL): 770.55 mb = 2252.80 m = 7390.98 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 272 at 30 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 1020 71 200 7 2.4 6.6 | 106 29 -27.5 7.7 1 1000 222 205 27 11.4 24.5 | 144 32 -18.5 25.6 2 925 828 240 42 36.4 21.0 | 196 23 6.4 22.2 3 850 1490 250 40 37.6 13.7 | 207 17 7.7 14.8 4 700 2991 245 48 43.5 20.3 | 212 25 13.6 21.5 Wind Parameters Mean winds (0-6000m): 242.2 at 39.9 knts Storm direction: 272.2 at 30.0 knts Shear (0-3000m) pos: 7.5 neg: 1.2 tot: 8.7 10-3/s Storm rel Dir Shear (0-3000m): 106.6 deg Storm rel helicity (0-3000m) pos: 352.7 neg: 0.0 tot: 352.7 m^2/s^2 ave: 121.6 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 10.9 stream: 8.8 10^-3/s Energy-Hel index: 0.16 Bulk Rich Number: 1.27 Bulk Shear: 56.34 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 ------------------------------------------------------------------------------- 500 214 27 148 28| 30.3 0.0 30.3|249.7 0.0 249.7 499.3 0.97| 34.7 33.8 1000 229 33 169 23| 18.8 0.0 18.8|331.6 0.0 331.6 331.6 0.94| 24.9 23.4 1500 236 36 180 21| 12.4 0.0 12.4|344.2 0.0 344.2 229.4 0.91| 18.2 16.5 2000 240 37 186 20| 9.3 0.8 10.1|347.9 0.0 347.9 174.0 0.87| 14.4 12.6 2500 241 39 192 20| 7.5 1.2 8.7|351.0 0.0 351.0 140.4 0.84| 12.1 10.2 3000 NO DATA | 7.5 1.2 8.7| | 4000 NO DATA | 7.5 1.2 8.7| | 5000 NO DATA | 7.5 1.2 8.7| | 6000 NO DATA | 7.5 1.2 8.7| | Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20251211.12.gif