UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101300.upa.cvt Date: 0000Z 13 OCT 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 13 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 17 SFC 989 107 4.0 3.6 97 0.4 3.8 20 1 278.0 278.9 277.5 291.7 5.01 2 983 157 6.0 6.0 100 0.0 6.0 25 2 280.5 281.5 280.0 296.9 5.97 3 979 190 6.0 5.8 99 0.2 5.9 29 2 280.8 281.9 280.0 297.1 5.91 4 925 653 3.0 2.3 95 0.7 2.7 80 9 282.4 283.2 279.6 296.0 4.88 5 866 1184 0.0 0.0 100 0.0 0.0 84 11 284.6 285.4 280.0 297.1 4.41 6 854 1295 0.0 0.0 100 0.0 0.0 85 11 285.8 286.5 280.7 298.4 4.48 7 850 1333 -0.9 -0.9 100 0.0 -0.9 85 11 285.2 285.9 280.1 297.1 4.21 8 848 1352 -1.5 -1.5 100 0.0 -1.5 85 11 284.8 285.5 279.6 296.2 4.04 9 725 2582 -9.5 -9.5 100 0.0 -9.5 101 9 289.0 289.5 279.8 296.6 2.56 10 719 2646 -9.9 -10.0 99 0.1 -9.9 102 9 289.3 289.7 279.8 296.6 2.48 11 700 2852 -11.3 -12.2 93 0.9 -11.6 105 9 290.0 290.3 279.7 296.3 2.14 12 611 3880 -17.9 -20.6 79 2.7 -18.5 107 12 293.9 294.1 280.3 297.6 1.21 13 529 4937 -26.7 -34.7 47 8.0 -27.6 109 16 295.7 295.7 280.0 296.9 0.38 14 500 5340 -30.3 -37.3 50 7.0 -31.0 110 17 296.1 296.2 280.1 297.1 0.31 15 410 6722 -41.1 -45.3 64 4.2 -41.3 110 28 299.5 299.5 281.3 300.0 0.16 16 408 6756 -41.3 -45.6 63 4.3 -41.5 110 28 299.6 299.6 281.4 300.2 0.16 17 400 6890 -41.9 -46.9 58 5.0 -42.2 110 29 300.5 300.6 281.8 301.0 0.14 18 365 7507 -43.7 -53.7 32 10.0 -44.0 115 33 306.1 306.1 284.0 306.4 0.07 19 335 8081 -44.7 -62.7 12 18.0 -45.2 115 31 312.3 312.3 286.2 312.4 0.02 20 320 8387 -44.1 -68.1 5 24.0 -44.7 115 30 317.3 317.3 287.9 317.3 0.01 21 300 8820 -43.5 -67.5 5 24.0 -44.1 115 29 324.0 324.1 290.0 324.1 0.01 22 295 8933 -43.9 -67.9 5 24.0 -44.5 115 28 325.0 325.0 290.3 325.1 0.01 23 250 10050 -43.7 -67.7 5 24.0 -44.5 115 19 341.1 341.1 294.6 341.2 0.02 24 200 11560 -43.5 -67.5 5 24.0 -44.4 120 17 363.9 363.9 299.5 364.0 0.02 25 176 12420 -43.1 -67.1 5 24.0 -44.2 124 15 378.1 378.1 301.9 378.2 0.03 26 150 13490 -45.5 -69.5 5 24.0 -46.5 130 13 391.7 391.7 304.0 391.8 0.02 27 126 14650 -46.3 -69.3 6 23.0 -47.3 139 9 410.2 410.2 306.6 410.4 0.03 28 100 16160 -53.5 -75.5 5 22.0 -54.1 150 3 424.4 424.4 308.2 424.4 0.01 29 96 16421 -54.9 -76.9 5 22.0 -55.5 137 3 426.6 426.6 308.4 426.7 0.01 30 95 16487 -55.1 -77.1 5 22.0 -55.6 133 3 427.5 427.5 308.6 427.5 0.01 31 76 17913 -53.3 -75.3 5 22.0 -54.1 62 5 459.4 459.4 311.7 459.5 0.02 32 70 18440 -53.9 -75.9 5 22.0 -54.7 35 5 469.1 469.1 312.5 469.2 0.02 33 50 20570 -58.7 -79.7 5 21.0 -59.3 30 7 505.2 505.2 315.3 505.2 0.01 34 49 20703 -58.9 -79.9 5 21.0 -59.5 29 7 507.6 507.6 315.5 507.7 0.01 35 30 23890 -60.9 -80.9 5 20.0 -61.7 5 9 578.6 578.6 319.6 578.7 0.02 36 25 24984 -61.5 -81.5 5 20.0 -62.4 358 9 607.9 607.9 321.0 608.0 0.02 37 20 26330 -61.3 -81.3 5 20.0 -62.4 350 9 648.5 648.5 322.6 648.7 0.03 38 12 29509 -60.1 -80.1 6 20.0 -62.0 754.8 754.8 326.1 755.3 0.05 TRP 365 7507 -43.7 -53.7 32 10.0 -44.0 115 33 306.1 306.1 284.0 306.4 0.07 WND Sounding variables and indices 1000-500 mb thick: 5323.00 m Freezing level: 854.00 mb = 1295.47 m = 4250.16 ft Wetbulb zero: 853.92 mb = 1296.25 m = 4252.75 ft Precipitable water: 0.57 inches Sfc-500 mean rel hum: 84.52 % Est. max temperature: 11.01 C = 51.82 F Sfc-Lift cond lev (LCL): 982.86 mb = 158.00 m = 518.37 ft T: 6.00 C 700-500 lapse rate: 7.64 C/km ThetaE index: 2.24 C Layer 850.0- 725.0 mb Conv cond level (CCL): 989.00 mb = 107.07 m = 351.26 ft Mean mixing ratio: 5.18 g/kg Conv temperature: 4.06 C = 39.31 F Cap Strength: 1.47 C Lifted Index: 1.26 C Risk: Showers probable Lifted Index @300 mb: 19.70 C Lifted Index @700 mb: 0.28 C Showalter Index: 0.68 C Risk: Thunderstorms probable Total Totals Index: 58.80 C Risk: Severe Thunderstorms probable Vertical Totals Index: 29.40 C Cross Totals Index: 29.40 C K Index: 27.60 Risk: 40-60 % chance of thunderstorms Sweat Index: 235.00 Risk: None Energy Index: -0.05 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 13.85 J/kg Max Up Vert Vel: 5.26 m/s Conv Inhibition (B-): 9.65 J/kg Cap Strength: 1.45 C Lift Cond Lev (LCL): 932.05 mb = 591.07 m = 1939.18 ft Lev Free Conv (LFC): 837.05 mb = 1453.78 m = 4769.56 ft Equ Level (EL): 767.05 mb = 2139.17 m = 7018.18 ft B at Equ Level: 13.82 J/kg Max Parcel Lev (MPL): 657.05 mb = 3330.55 m = 10926.88 ft Wind level data Storm motion: 132 at 9 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 ---------------------------------------------------------- 0 989 107 20 1 -0.3 -0.9 | 318 10 6.4 -7.1 1 925 653 80 9 -8.9 -1.6 | 15 8 -2.1 -7.7 2 850 1333 85 11 -11.0 -1.0 | 31 8 -4.2 -7.1 3 700 2852 105 9 -8.7 2.3 | 27 4 -2.0 -3.8 4 500 5340 110 17 -16.0 5.8 | 88 9 -9.2 -0.4 5 400 6890 110 29 -27.3 9.9 | 100 21 -20.5 3.8 6 365 7507 115 33 -29.9 13.9 | 109 24 -23.2 7.8 7 300 8820 115 29 -26.3 12.3 | 107 20 -19.5 6.1 8 250 10050 115 19 -17.2 8.0 | 100 11 -10.5 1.9 9 200 11560 120 17 -14.7 8.5 | 106 8 -8.0 2.3 10 150 13490 130 13 -10.0 8.4 | 124 4 -3.2 2.2 11 100 16160 150 3 -1.5 2.6 | 304 6 5.2 -3.6 12 70 18440 35 5 -2.9 -4.1 | 339 11 3.9 -10.3 13 50 20570 30 7 -3.5 -6.1 | 345 13 3.2 -12.2 14 30 23890 5 9 -0.8 -9.0 | 339 16 6.0 -15.1 15 20 26330 350 9 1.6 -8.9 | 331 17 8.3 -15.0 Wind Parameters Mean winds (0-6000m): 102.5 at 12.2 knts Storm direction: 132.5 at 9.1 knts Shear (0-3000m) pos: 1.7 neg: 0.0 tot: 1.7 10-3/s Storm rel Dir Shear (0-3000m): 79.6 deg Storm rel helicity (0-3000m) pos: 29.0 neg: -0.5 tot: 28.5 m^2/s^2 ave: 9.5 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 2.8 stream: 2.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.49 Bulk Shear: 9.28 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 74 5 343 8| 8.0 0.0 8.0| 21.2 0.0 21.2 42.4 0.97| 9.0 8.7 1000 79 7 2 8| 5.1 0.0 5.1| 26.3 0.0 26.3 26.3 0.97| 5.8 5.6 1500 82 8 12 7| 3.5 0.0 3.5| 28.0 0.0 28.0 18.7 0.92| 4.3 4.0 2000 85 9 16 7| 2.5 0.0 2.5| 28.1 -0.0 28.1 14.0 0.83| 3.6 3.0 2500 88 9 19 7| 1.9 0.0 1.9| 28.1 -0.3 27.8 11.1 0.75| 3.1 2.4 3000 90 9 21 7| 1.7 0.0 1.7| 29.0 -0.5 28.5 9.5 0.73| 2.8 2.1 4000 95 10 28 6| 1.7 0.0 1.7| 32.7 -0.5 32.3 8.1 0.75| 2.5 1.9 5000 99 11 41 6| 1.7 0.0 1.7| 36.8 -0.5 36.3 7.3 0.73| 2.4 1.7 6000 102 12 56 6| 1.6 0.3 2.0| 43.2 -0.5 42.8 7.1 0.64| 2.6 1.6 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251013.00.gif