UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120500.upa.cvt Date: 0000Z 5 DEC 25 Searching for U8661... Searching the city database file for: U8661 ... Date:0000Z 5 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 1013 75 1.2 -2.4 77 3.6 -0.2 290 7 273.3 273.9 272.3 281.9 3.16 1 1000 179 0.4 -4.6 69 5.0 -1.4 305 17 273.5 274.0 271.7 281.0 2.71 2 927 781 -3.9 -7.0 79 3.1 -5.0 349 21 275.2 275.6 272.3 281.9 2.43 3 925 798 -3.9 -7.0 79 3.1 -5.0 350 21 275.3 275.7 272.3 282.1 2.44 4 919 849 -3.5 -6.9 77 3.4 -4.7 349 21 276.2 276.7 273.0 283.2 2.48 5 850 1460 -9.1 -11.8 81 2.7 -9.9 335 15 276.6 276.9 272.2 281.8 1.82 6 819 1746 -10.9 -12.8 86 1.9 -11.4 331 18 277.7 278.0 272.7 282.6 1.74 7 815 1784 -10.3 -12.2 86 1.9 -10.8 331 18 278.7 279.0 273.4 283.9 1.84 8 810 1832 -9.5 -11.8 83 2.3 -10.2 330 19 280.0 280.4 274.3 285.5 1.91 9 751 2417 -7.9 -25.9 22 18.0 -11.7 322 25 287.9 288.0 276.6 289.8 0.62 10 736 2574 -7.9 -34.9 9 27.0 -12.5 320 27 289.6 289.6 276.9 290.4 0.27 11 702 2940 -10.3 -39.3 7 29.0 -14.5 315 31 290.8 290.9 277.4 291.4 0.18 12 700 2962 -10.5 -39.5 7 29.0 -14.6 315 31 290.9 290.9 277.4 291.5 0.18 13 642 3621 -15.3 -30.3 27 15.0 -17.9 292.7 292.8 278.7 294.2 0.48 14 578 4406 -20.7 -36.7 22 16.0 -22.7 295.3 295.4 279.7 296.3 0.28 15 538 4935 -21.9 -46.9 8 25.0 -24.2 300.0 300.0 281.5 300.4 0.10 16 506 5385 -23.5 -41.5 18 18.0 -25.5 303.4 303.4 283.0 304.1 0.20 TRP WND Sounding variables and indices Freezing level: 993.21 mb = 235.00 m = 770.98 ft Wetbulb zero: Below ground Precipitable water: 0.24 inches Sfc-500 mean rel hum: 40.46 % Est. max temperature: 4.42 C = 39.96 F Sfc-Lift cond lev (LCL): 957.76 mb = 521.76 m = 1711.80 ft T: -2.05 C ThetaE index: 1.38 C Layer 850.0- 819.0 mb Conv cond level (CCL): 876.55 mb = 1219.39 m = 4000.58 ft Mean mixing ratio: 2.60 g/kg Conv temperature: 4.35 C = 39.84 F Cap Strength: 18.37 C Lifted Index @700 mb: 10.93 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.49 J/kg Max Up Vert Vel: 3.60 m/s Conv Inhibition (B-): 1565.18 J/kg Cap Strength: 17.81 C Lift Cond Lev (LCL): 903.77 mb = 980.17 m = 3215.73 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 357 at 15 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 1013 75 290 7 6.6 -2.4 | 204 14 5.8 13.1 1 1000 179 305 17 13.9 -9.8 | 247 14 13.1 5.7 2 925 798 350 21 3.6 -20.7 | 331 6 2.9 -5.2 3 850 1460 335 15 6.3 -13.6 | 252 6 5.6 1.9 4 700 2962 315 31 21.9 -21.9 | 287 22 21.1 -6.5 Wind Parameters Mean winds (0-6000m): 327.1 at 20.6 knts Storm direction: 357.1 at 15.5 knts Shear (0-3000m) pos: 3.2 neg: 2.5 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 83.1 deg Storm rel helicity (0-3000m) pos: 78.6 neg: -9.6 tot: 69.0 m^2/s^2 ave: 24.7 10^-3 m/s^2 rel: 0.43 Storm rel vorticity (0-3000m) horiz: 9.0 stream: 3.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 2.11 Bulk Shear: 3.07 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 ------------------------------------------------------------------------------- 500 318 17 255 11| 15.7 0.0 15.7| 57.9 0.0 57.9 115.8 0.89| 20.6 18.4 1000 333 18 278 8| 7.9 0.0 7.9| 66.6 -3.5 63.0 63.0 0.71| 14.6 10.4 1500 335 18 276 7| 5.3 1.3 6.6| 68.1 -9.1 59.1 39.4 0.51| 11.5 5.9 2000 334 18 276 7| 4.0 1.7 5.7| 75.0 -9.1 65.9 33.0 0.51| 10.1 5.2 2500 331 19 279 9| 3.2 2.5 5.7| 78.5 -9.1 69.5 27.8 0.47| 9.4 4.4 3000 NO DATA | 3.2 2.5 5.7| | 4000 NO DATA | 3.2 2.5 5.7| | 5000 NO DATA | 3.2 2.5 5.7| | 6000 NO DATA | 3.2 2.5 5.7| | Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20251205.00.gif