UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101112.upa.cvt Date: 1200Z 11 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 11 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 182 SFC 930 740 -13.3 -16.5 77 3.2 -14.0 270 5 265.3 265.5 263.5 268.4 1.13 2 925 781 -12.5 -15.6 78 3.1 -13.2 240 5 266.5 266.7 264.6 269.9 1.22 3 907 932 -9.5 -12.9 76 3.4 -10.4 234 5 271.1 271.4 268.3 275.5 1.56 4 850 1432 -10.7 -14.8 72 4.1 -11.7 215 7 274.9 275.2 270.5 279.0 1.42 5 808 1820 -13.3 -17.8 69 4.5 -14.3 276.2 276.4 270.9 279.6 1.17 6 784 2050 -11.9 -16.7 67 4.8 -13.0 280.1 280.3 273.4 283.9 1.32 7 773 2157 -14.1 -20.1 60 6.0 -15.3 278.8 279.0 272.2 281.8 1.00 8 749 2397 -13.1 -21.1 51 8.0 -14.8 282.5 282.6 274.2 285.3 0.95 TRP WND Sounding variables and indices Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.09 inches Sfc-500 mean rel hum: 69.34 % Est. max temperature: 0.74 C = 33.33 F Sfc-Lift cond lev (LCL): 882.95 mb = 1138.98 m = 3736.78 ft T: -10.00 C ThetaE index: 2.14 C Layer 773.0- 749.0 mb Conv cond level (CCL): None Cap Strength: 8.03 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 29.81 J/kg Max Up Vert Vel: 7.72 m/s Conv Inhibition (B-): 153.15 J/kg Cap Strength: 6.97 C Lift Cond Lev (LCL): 827.53 mb = 1636.93 m = 5370.42 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 257 at 4 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 ---------------------------------------------------------- 0 930 740 270 5 5.0 -0.0 | 327 1 0.7 -1.0 1 925 781 240 5 4.3 2.5 | 180 1 -0.0 1.5 2 850 1432 215 7 4.0 5.7 | 176 5 -0.3 4.7 Wind Parameters Mean winds (0-6000m): 226.8 at 5.9 knts Storm direction: 256.8 at 4.5 knts Shear (0-3000m) pos: 0.0 neg: 4.9 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): -150.8 deg Storm rel helicity (0-3000m) pos: 0.0 neg: -0.6 tot: -0.6 m^2/s^2 ave: -0.9 10^-3 m/s^2 rel: -0.63 Storm rel vorticity (0-3000m) horiz: 4.6 stream: -2.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 646.46 Bulk Shear: 0.05 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 ------------------------------------------------------------------------------- 500 232 6 182 2| 0.0 4.9 4.9| 0.0 -0.4 -0.4 -0.9 -0.67| 5.9 -4.0 1000 NO DATA | 0.0 4.9 4.9| | 1500 NO DATA | 0.0 4.9 4.9| | 2000 NO DATA | 0.0 4.9 4.9| | 2500 NO DATA | 0.0 4.9 4.9| | 3000 NO DATA | 0.0 4.9 4.9| | 4000 NO DATA | 0.0 4.9 4.9| | 5000 NO DATA | 0.0 4.9 4.9| | 6000 NO DATA | 0.0 4.9 4.9| | Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251011.12.gif