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 U2820... Searching the city database file for: U2820 ... Date:1200Z 11 OCT 25 Station: U2820 WMO ident: 22820 Latitude: 61.82 Longitude: 34.27 ------------------------------------------------------------------------------- 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 -22 SFC 984 110 6.0 4.1 88 1.9 5.1 200 7 280.4 281.3 279.0 294.8 5.21 2 983 119 7.2 4.4 82 2.8 5.8 281.7 282.6 279.8 296.5 5.33 3 957 339 5.2 3.2 87 2.0 4.2 281.9 282.7 279.5 295.8 5.03 4 925 617 5.8 4.3 90 1.5 5.1 210 33 285.2 286.2 281.8 301.0 5.63 5 922 644 5.8 4.3 90 1.5 5.1 285.5 286.5 281.9 301.4 5.65 6 850 1304 1.8 -1.4 79 3.2 0.4 245 19 288.0 288.7 281.2 299.7 4.06 7 836 1438 1.0 -2.3 79 3.3 -0.4 288.6 289.2 281.2 299.7 3.86 8 787 1919 -3.5 -5.4 87 1.9 -4.3 288.8 289.3 280.6 298.2 3.25 9 700 2836 -8.9 -13.3 70 4.4 -10.3 245 23 292.6 293.0 280.7 298.5 1.96 10 682 3037 -9.7 -13.2 76 3.5 -10.8 293.9 294.3 281.4 300.1 2.03 11 548 4683 -21.7 -23.9 82 2.2 -22.1 298.6 298.8 282.1 301.9 1.01 12 533 4886 -23.5 -26.5 76 3.0 -24.0 298.9 299.0 282.0 301.5 0.82 13 500 5350 -25.9 -35.9 39 10.0 -27.1 185 46 301.5 301.5 282.4 302.7 0.36 14 482 5615 -27.9 -39.9 31 12.0 -29.1 302.2 302.2 282.6 303.0 0.25 15 400 6940 -34.9 -48.9 23 14.0 -35.8 200 60 309.6 309.7 285.3 310.0 0.11 TRP WND 396 200 60 Sounding variables and indices 1000-500 mb thick: 5372.00 m Freezing level: 825.11 mb = 1544.69 m = 5067.81 ft Wetbulb zero: 843.66 mb = 1364.24 m = 4475.81 ft Precipitable water: 0.57 inches Sfc-500 mean rel hum: 78.41 % Est. max temperature: 14.09 C = 57.37 F Sfc-Lift cond lev (LCL): 955.67 mb = 349.97 m = 1148.18 ft T: 5.22 C 700-500 lapse rate: 6.76 C/km ThetaE index: 1.67 C Layer 850.0- 836.0 mb Conv cond level (CCL): 857.88 mb = 1229.09 m = 4032.41 ft Mean mixing ratio: 5.25 g/kg Conv temperature: 13.28 C = 55.90 F Cap Strength: 2.48 C Lifted Index: 3.85 C Risk: None Lifted Index @700 mb: 1.16 C Showalter Index: 3.26 C Risk: None Total Totals Index: 52.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.70 C Cross Totals Index: 24.50 C K Index: 21.90 Risk: 20-40 % chance of thunderstorms Sweat Index: 148.00 Risk: None Energy Index: 0.57 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 25.05 J/kg Max Up Vert Vel: 7.08 m/s Conv Inhibition (B-): 671.11 J/kg Cap Strength: 3.62 C Lift Cond Lev (LCL): 904.78 mb = 796.75 m = 2613.98 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data ------------------------------------ TRUE/GROUND REL LEV P H DIR SPD U V mb m knt m/s ------------------------------------ 0 396 7393 200 60 20.5 56.4 1 984 110 200 7 2.4 6.6 2 925 617 210 33 16.5 28.6 3 850 1304 245 19 17.2 8.0 4 700 2836 245 23 20.8 9.7 5 500 5350 185 46 4.0 45.8 6 400 6940 200 60 20.5 56.4 Wind Parameters Energy-Hel index: -1.57 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 NO DATA | | | 1000 NO DATA | | | 1500 NO DATA | | | 2000 NO DATA | | | 2500 NO DATA | | | 3000 NO DATA | | | 4000 NO DATA | | | 5000 NO DATA | | | 6000 NO DATA | | | Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251011.12.gif