UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101400.upa.cvt Date: 0000Z 14 OCT 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 14 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 100 20 3 SFC 999 108 4.0 2.2 88 1.8 3.2 20 3 277.2 278.0 276.4 289.5 4.48 2 925 728 -0.7 -2.3 89 1.6 -1.3 40 15 278.6 279.2 275.7 288.3 3.49 3 864 1270 -4.1 -5.3 91 1.2 -4.6 44 20 280.5 281.0 276.1 288.9 2.98 4 850 1399 -4.3 -5.4 92 1.1 -4.7 45 21 281.6 282.2 276.7 290.1 3.00 5 781 2064 -6.3 -7.3 93 1.0 -6.7 56 22 286.4 286.9 278.9 294.6 2.83 6 758 2296 -9.1 -11.6 82 2.5 -9.9 60 22 285.8 286.2 277.6 291.9 2.07 7 700 2908 -12.5 -17.1 68 4.6 -13.7 70 23 288.6 288.9 278.1 293.0 1.43 8 623 3787 -17.7 -20.6 78 2.9 -18.3 65 25 292.5 292.7 279.6 296.2 1.19 9 618 3847 -17.9 -20.9 77 3.0 -18.6 64 25 292.9 293.1 279.8 296.5 1.17 10 608 3969 -19.3 -22.4 76 3.1 -19.9 64 26 292.7 292.9 279.5 295.9 1.04 11 529 4986 -27.1 -30.3 74 3.2 -27.5 58 28 295.2 295.3 280.0 297.1 0.58 12 500 5390 -29.5 -36.5 51 7.0 -30.2 55 29 297.1 297.1 280.6 298.2 0.34 13 457 6027 -33.7 -43.7 36 10.0 -34.4 55 30 299.6 299.6 281.4 300.2 0.17 14 400 6950 -40.5 -49.5 37 9.0 -40.9 55 31 302.4 302.4 282.5 302.7 0.10 15 337 8096 -49.5 -54.5 56 5.0 -49.6 60 36 305.3 305.3 283.6 305.5 0.07 16 331 8215 -48.1 -54.1 50 6.0 -48.3 60 37 308.8 308.8 284.9 309.0 0.07 17 319 8458 -49.1 -54.1 56 5.0 -49.3 60 39 310.6 310.7 285.7 310.9 0.08 18 300 8860 -50.3 -55.3 55 5.0 -50.4 60 42 314.5 314.5 287.0 314.7 0.07 19 297 8925 -50.5 -55.5 55 5.0 -50.7 60 42 315.1 315.1 287.2 315.3 0.07 20 268 9599 -46.1 -53.1 45 7.0 -46.4 57 41 330.9 330.9 292.0 331.3 0.10 21 250 10060 -46.1 -54.1 40 8.0 -46.4 55 40 337.5 337.5 293.8 337.9 0.10 22 200 11540 -45.9 -57.9 25 12.0 -46.4 65 35 360.1 360.1 298.8 360.4 0.08 23 175 12425 -47.5 -60.5 21 13.0 -48.1 63 30 371.5 371.5 300.9 371.8 0.06 24 168 12694 -47.1 -60.1 21 13.0 -47.7 62 29 376.5 376.5 301.7 376.8 0.07 25 150 13440 -49.5 -63.5 18 14.0 -50.1 60 25 384.8 384.8 303.1 385.0 0.05 26 121 14836 -54.1 -69.1 14 15.0 -54.5 60 18 400.7 400.8 305.3 400.9 0.03 27 100 16060 -54.5 -69.5 14 15.0 -55.0 60 11 422.4 422.4 308.0 422.6 0.03 28 70 18320 -58.5 -73.5 13 15.0 -58.9 45 13 459.2 459.2 311.7 459.4 0.03 29 50 20430 -60.3 -74.3 14 14.0 -60.8 30 7 501.4 501.4 315.1 501.6 0.03 30 30 23600 -62.5 -76.5 14 14.0 -63.1 20 7 574.3 574.3 319.4 574.5 0.04 31 29 23808 -63.5 -77.5 13 14.0 -64.0 17 7 577.1 577.1 319.5 577.3 0.03 32 20 26090 -62.3 -76.3 14 14.0 -63.2 350 9 645.5 645.5 322.5 645.9 0.06 33 10 30410 -57.7 -70.7 18 13.0 -60.1 310 15 804.2 804.3 327.4 806.9 0.28 34 9.0 31074 -58.1 -71.1 17 13.0 -60.6 827.2 827.4 328.0 830.2 0.29 TRP 337 8096 -49.5 -54.5 56 5.0 -49.6 60 36 305.3 305.3 283.6 305.5 0.07 WND Sounding variables and indices 1000-500 mb thick: 5290.00 m Freezing level: 936.02 mb = 635.68 m = 2085.53 ft Wetbulb zero: 946.78 mb = 540.55 m = 1773.45 ft Precipitable water: 0.45 inches Sfc-500 mean rel hum: 79.87 % Est. max temperature: 8.48 C = 47.26 F Sfc-Lift cond lev (LCL): 971.56 mb = 332.49 m = 1090.84 ft T: 2.30 C 700-500 lapse rate: 6.85 C/km ThetaE index: 2.68 C Layer 758.0- 700.0 mb Conv cond level (CCL): 915.47 mb = 810.30 m = 2658.43 ft Mean mixing ratio: 3.82 g/kg Conv temperature: 5.66 C = 42.18 F Cap Strength: 6.51 C Lifted Index: 7.69 C Risk: None Lifted Index @300 mb: 18.23 C Lifted Index @700 mb: 3.95 C Showalter Index: 6.63 C Risk: None Total Totals Index: 49.30 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.20 C Cross Totals Index: 24.10 C K Index: 15.20 Risk: < 20 % chance of thunderstorms Sweat Index: 77.00 Risk: None Energy Index: 1.66 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.61 J/kg Max Up Vert Vel: 3.64 m/s Conv Inhibition (B-): 60246.39 J/kg Cap Strength: 7.46 C Lift Cond Lev (LCL): 924.90 mb = 728.89 m = 2391.34 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 87 at 17 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 ---------------------------------------------------------- 0 999 108 20 3 -1.0 -2.8 | 277 16 16.1 -2.0 1 925 728 40 15 -9.6 -11.5 | 325 13 7.5 -10.7 2 850 1399 45 21 -14.8 -14.8 | 351 14 2.3 -14.0 3 700 2908 70 23 -21.6 -7.9 | 32 8 -4.4 -7.0 4 500 5390 55 29 -23.8 -16.6 | 23 17 -6.6 -15.8 5 400 6950 55 31 -25.4 -17.8 | 26 19 -8.2 -16.9 6 337 8096 60 36 -31.2 -18.0 | 39 22 -14.0 -17.2 7 300 8860 60 42 -36.4 -21.0 | 44 28 -19.2 -20.2 8 250 10060 55 40 -32.8 -22.9 | 35 27 -15.6 -22.1 9 200 11540 65 35 -31.7 -14.8 | 46 20 -14.5 -14.0 10 150 13440 60 25 -21.7 -12.5 | 21 12 -4.5 -11.7 11 100 16060 60 11 -9.5 -5.5 | 301 9 7.6 -4.7 12 70 18320 45 13 -9.2 -9.2 | 316 12 8.0 -8.4 13 50 20430 30 7 -3.5 -6.1 | 291 15 13.7 -5.2 14 30 23600 20 7 -2.4 -6.6 | 291 16 14.8 -5.7 15 20 26090 350 9 1.6 -8.9 | 293 20 18.7 -8.0 16 10 30410 310 15 11.5 -9.6 | 287 30 28.7 -8.8 Wind Parameters Mean winds (0-6000m): 57.2 at 22.9 knts Storm direction: 87.2 at 17.2 knts Shear (0-3000m) pos: 3.7 neg: 0.0 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 114.6 deg Storm rel helicity (0-3000m) pos: 90.3 neg: -0.2 tot: 90.1 m^2/s^2 ave: 30.0 10^-3 m/s^2 rel: 0.89 Storm rel vorticity (0-3000m) horiz: 5.0 stream: 4.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.20 Bulk Shear: 33.48 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 36 8 293 14| 10.1 0.0 10.1| 37.4 0.0 37.4 74.7 0.96| 10.2 9.8 1000 39 12 311 13| 8.1 0.0 8.1| 58.1 0.0 58.1 58.1 0.97| 8.2 8.0 1500 42 15 324 12| 6.4 0.0 6.4| 71.2 0.0 71.2 47.5 0.96| 6.8 6.5 2000 46 16 333 12| 5.0 0.0 5.0| 79.1 0.0 79.1 39.5 0.93| 6.0 5.5 2500 50 18 341 11| 4.2 0.0 4.2| 86.3 0.0 86.3 34.5 0.91| 5.4 5.0 3000 54 19 347 10| 3.7 0.0 3.7| 90.3 -0.2 90.1 30.0 0.89| 5.0 4.4 4000 57 20 358 10| 2.8 0.5 3.2| 90.3 -2.2 88.1 22.0 0.77| 4.2 3.2 5000 58 22 6 11| 2.2 0.7 3.0| 90.3 -6.1 84.2 16.8 0.66| 3.7 2.5 6000 57 23 10 12| 1.9 0.8 2.6| 92.5 -7.6 84.9 14.2 0.63| 3.3 2.1 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251014.00.gif