UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120712.upa.cvt Date: 1200Z 7 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 7 DEC 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 ------------------------------------------------------------------------------- SFC 1013 111 -2.3 -3.3 93 1.0 -2.7 90 13 269.9 270.3 269.8 277.8 2.95 1 1000 213 -3.3 -4.8 89 1.5 -3.8 95 19 269.9 270.3 269.3 277.1 2.67 2 925 825 -6.9 -8.4 89 1.5 -7.4 110 29 272.3 272.6 270.1 278.3 2.19 3 915 910 -7.5 -8.9 90 1.4 -7.9 114 28 272.5 272.8 270.1 278.4 2.13 4 888 1144 -4.9 -5.6 95 0.7 -5.1 124 27 277.5 278.0 274.2 285.4 2.83 5 850 1487 -6.7 -7.9 91 1.2 -7.1 140 25 279.1 279.5 274.6 286.1 2.48 6 834 1635 -7.7 -9.1 90 1.4 -8.1 140 23 279.6 280.0 274.6 286.1 2.30 7 776 2196 -7.9 -9.7 87 1.8 -8.5 142 17 285.2 285.6 277.7 292.1 2.36 8 700 2991 -12.5 -14.8 83 2.3 -13.1 145 7 288.6 288.9 278.5 293.8 1.73 9 500 5490 -27.1 -29.5 80 2.4 -27.5 275 7 300.0 300.1 282.3 302.2 0.66 10 400 7050 -40.7 -44.8 65 4.1 -40.9 270 11 302.1 302.1 282.5 302.7 0.18 11 377 7449 -43.9 -48.4 61 4.5 -44.1 274 20 303.0 303.0 282.8 303.5 0.13 12 324 8451 -49.3 -54.3 56 5.0 -49.4 285 44 309.0 309.0 285.0 309.3 0.07 13 317 8593 -49.9 -54.9 56 5.0 -50.0 286 47 310.1 310.1 285.4 310.4 0.07 14 300 8950 -53.1 -58.1 54 5.0 -53.2 290 56 310.5 310.5 285.6 310.7 0.05 15 250 10110 -60.9 -65.9 52 5.0 -61.0 290 62 315.5 315.5 287.3 315.6 0.02 16 238 10414 -63.3 -68.3 51 5.0 -63.3 291 63 316.4 316.4 287.6 316.4 0.02 17 212 11119 -67.1 -72.1 49 5.0 -67.1 295 66 321.2 321.2 289.1 321.2 0.01 18 204 11351 -68.3 -73.3 49 5.0 -68.3 295 64 322.8 322.8 289.6 322.8 0.01 19 200 11470 -67.7 -72.7 49 5.0 -67.7 295 62 325.5 325.5 290.5 325.6 0.01 20 173 12337 -68.9 -73.9 48 5.0 -68.9 295 54 337.4 337.4 293.7 337.4 0.01 21 150 13190 -67.5 -72.5 49 5.0 -67.5 295 46 353.8 353.8 297.5 353.9 0.01 22 100 15620 -69.7 -74.7 48 5.0 -69.8 290 31 393.1 393.1 304.2 393.1 0.02 23 70 17740 -71.3 -77.3 40 6.0 -71.3 290 31 431.8 431.9 309.0 431.9 0.01 24 50 19710 -74.7 -80.7 39 6.0 -74.7 290 29 467.5 467.5 312.4 467.5 0.01 25 34 21936 -77.5 -83.5 37 6.0 -77.6 514.6 514.6 315.9 514.7 0.01 TRP 204 11351 -68.3 -73.3 49 5.0 -68.3 295 64 322.8 322.8 289.6 322.8 0.01 WND 212 11119 -67.1 -72.1 49 5.0 -67.1 295 66 321.2 321.2 289.1 321.2 0.01 Sounding variables and indices 1000-500 mb thick: 5277.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.41 inches Sfc-500 mean rel hum: 85.21 % Est. max temperature: 6.45 C = 43.61 F Sfc-Lift cond lev (LCL): 997.05 mb = 236.22 m = 775.00 ft T: -3.44 C 700-500 lapse rate: 5.84 C/km ThetaE index: 0.73 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 922.81 mb = 843.46 m = 2767.24 ft Mean mixing ratio: 2.44 g/kg Conv temperature: 0.16 C = 32.28 F Cap Strength: 11.86 C Lifted Index: 18.58 C Risk: None Lifted Index @300 mb: 23.23 C Lifted Index @700 mb: 11.86 C Showalter Index: 12.08 C Risk: None Total Totals Index: 39.60 C Risk: None Vertical Totals Index: 20.40 C Cross Totals Index: 19.20 C K Index: 10.20 Risk: None Sweat Index: 57.00 Risk: None Energy Index: 3.36 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.51 J/kg Max Up Vert Vel: 4.36 m/s Conv Inhibition (B-): 34227.02 J/kg Cap Strength: 18.56 C Lift Cond Lev (LCL): 940.41 mb = 695.29 m = 2281.11 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 167 at 10 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 111 90 13 -13.0 0.0 | 48 14 -10.7 -9.7 1 1000 213 95 19 -18.9 1.7 | 64 18 -16.6 -8.0 2 925 825 110 29 -27.3 9.9 | 91 25 -25.0 0.2 3 850 1487 140 25 -16.1 19.2 | 124 17 -13.8 9.5 4 700 2991 145 7 -4.0 5.7 | 24 4 -1.7 -3.9 5 500 5490 275 7 7.0 -0.6 | 318 14 9.3 -10.3 6 400 7050 270 11 11.0 -0.0 | 306 16 13.3 -9.7 7 300 8950 290 56 52.6 -19.2 | 298 62 54.9 -28.8 8 250 10110 290 62 58.3 -21.2 | 297 68 60.6 -30.9 9 212 11119 295 66 59.8 -27.9 | 301 73 62.1 -37.6 10 204 11351 295 64 58.0 -27.0 | 301 71 60.3 -36.7 11 200 11470 295 62 56.2 -26.2 | 302 69 58.5 -35.9 12 150 13190 295 46 41.7 -19.4 | 304 53 44.0 -29.1 13 100 15620 290 31 29.1 -10.6 | 303 37 31.4 -20.3 14 70 17740 290 31 29.1 -10.6 | 303 37 31.4 -20.3 15 50 19710 290 29 27.3 -9.9 | 304 35 29.5 -19.6 Wind Parameters Mean winds (0-6000m): 136.7 at 13.3 knts Storm direction: 166.7 at 10.0 knts Shear (0-3000m) pos: 2.0 neg: 0.0 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): -31.0 deg Storm rel helicity (0-3000m) pos: 143.0 neg: -16.5 tot: 126.5 m^2/s^2 ave: 42.2 10^-3 m/s^2 rel: 0.33 Storm rel vorticity (0-3000m) horiz: 8.8 stream: 2.9 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.42 Bulk Shear: 22.88 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 99 21 71 19| 13.7 0.0 13.7| 54.0 0.0 54.0 108.1 0.80| 14.1 11.3 1000 107 24 83 21| 9.2 0.0 9.2|109.6 0.0 109.6 109.6 0.82| 12.6 10.3 1500 116 25 93 20| 6.3 0.0 6.3|143.0 -0.8 142.1 94.8 0.78| 11.6 9.1 2000 121 24 98 18| 3.6 0.0 3.6|143.0 -5.8 137.2 68.6 0.62| 10.3 6.4 2500 124 22 99 16| 2.3 0.0 2.3|143.0 -11.5 131.5 52.6 0.47| 9.4 4.4 3000 126 20 98 14| 2.0 0.0 2.0|143.0 -16.5 126.5 42.2 0.33| 8.8 2.9 4000 130 17 96 10| 2.2 0.0 2.2|143.0 -20.6 122.3 30.6 0.21| 7.4 1.6 5000 134 15 92 8| 2.0 0.0 2.0|147.4 -20.8 126.7 25.3 0.22| 6.6 1.4 6000 137 13 90 7| 1.7 0.1 1.9|152.7 -25.4 127.3 21.2 0.21| 5.8 1.2 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251207.12.gif