UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101900.upa.cvt Date: 0000Z 19 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 19 OCT 25 Station: U4688 WMO ident: 24688 Latitude: 63.27 Longitude: 143.15 ------------------------------------------------------------------------------- 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 156 SFC 927 736 -14.5 -18.2 73 3.7 -15.2 10 1 264.3 264.5 262.5 267.0 0.98 2 925 753 -14.9 -18.8 72 3.9 -15.6 15 1 264.1 264.2 262.2 266.7 0.94 3 912 858 -15.9 -19.8 72 3.9 -16.6 2 2 264.1 264.3 262.2 266.5 0.87 4 856 1331 -13.9 -17.0 77 3.1 -14.6 306 5 271.0 271.2 267.6 274.4 1.18 5 850 1384 -14.1 -17.2 77 3.1 -14.7 300 5 271.4 271.6 267.8 274.7 1.17 6 784 2000 -14.9 -17.8 78 2.9 -15.5 327 8 276.9 277.1 271.4 280.3 1.20 7 700 2853 -20.7 -24.1 74 3.4 -21.2 5 13 279.6 279.7 272.2 281.9 0.78 8 696 2895 -20.9 -24.3 74 3.4 -21.5 279.8 279.9 272.3 282.1 0.77 9 658 3312 -18.5 -21.5 77 3.0 -19.1 287.0 287.2 276.7 290.2 1.04 10 639 3529 -22.5 -26.7 69 4.2 -23.1 284.9 285.0 275.1 287.0 0.67 11 576 4288 -24.5 -28.5 69 4.0 -25.1 291.1 291.3 278.2 293.2 0.63 TRP WND Sounding variables and indices Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 74.31 % Est. max temperature: -2.01 C = 28.38 F Sfc-Lift cond lev (LCL): 872.84 mb = 1185.92 m = 3890.77 ft T: -14.51 C ThetaE index: 0.50 C Layer 925.0- 856.0 mb Conv cond level (CCL): 700.33 mb = 2849.47 m = 9348.55 ft Mean mixing ratio: 1.05 g/kg Conv temperature: 0.41 C = 32.74 F Cap Strength: 17.32 C Lifted Index @700 mb: 8.64 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 35.08 J/kg Max Up Vert Vel: 8.38 m/s Conv Inhibition (B-): 1126.55 J/kg Cap Strength: 17.07 C Lift Cond Lev (LCL): 829.08 mb = 1573.99 m = 5163.93 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 14 at 5 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 ---------------------------------------------------------- 0 927 736 10 1 -0.2 -1.0 | 195 4 1.1 4.2 1 925 753 15 1 -0.3 -1.0 | 193 4 1.0 4.2 2 850 1384 300 5 4.3 -2.5 | 244 6 5.6 2.7 3 700 2853 5 13 -1.1 -13.0 | 359 8 0.1 -7.8 Wind Parameters Mean winds (0-6000m): 343.7 at 7.1 knts Storm direction: 13.7 at 5.3 knts Shear (0-3000m) pos: 2.3 neg: 1.6 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 164.5 deg Storm rel helicity (0-3000m) pos: 24.7 neg: 0.0 tot: 24.7 m^2/s^2 ave: 11.7 10^-3 m/s^2 rel: 0.87 Storm rel vorticity (0-3000m) horiz: 4.5 stream: 3.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 11.60 Bulk Shear: 3.02 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 ------------------------------------------------------------------------------- 500 328 2 220 4| 0.0 3.6 3.6| 2.9 0.0 2.9 5.7 0.74| 4.1 3.1 1000 310 4 238 5| 0.0 3.3 3.3| 7.3 0.0 7.3 7.3 0.72| 4.1 3.0 1500 322 5 258 5| 1.4 2.2 3.6| 14.0 0.0 14.0 9.3 0.82| 4.2 3.4 2000 339 7 287 4| 2.3 1.6 3.9| 22.6 0.0 22.6 11.3 0.86| 4.4 3.8 2500 NO DATA | 2.3 1.6 3.9| | 3000 NO DATA | 2.3 1.6 3.9| | 4000 NO DATA | 2.3 1.6 3.9| | 5000 NO DATA | 2.3 1.6 3.9| | 6000 NO DATA | 2.3 1.6 3.9| | Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251019.00.gif