UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120711.upa.cvt Date: 1100Z 7 DEC 25 Searching for BIKF... Searching the city database file for: BIKF ... Date:1100Z 7 DEC 25 Station: BIKF WMO ident: 4018 Latitude: 63.97 Longitude: -22.60 Elevation: 52.00 ------------------------------------------------------------------------------- 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 11 45 10 SFC 997 52 5.0 -1.0 65 6.0 2.5 45 10 278.4 279.0 275.7 288.3 3.56 2 989 116 5.8 -1.2 61 7.0 2.8 48 13 279.8 280.4 276.5 289.7 3.54 3 974 238 5.6 -4.4 49 10.0 1.6 54 19 280.9 281.3 276.0 288.9 2.83 4 925 646 2.4 -5.6 55 8.0 -0.7 75 38 281.8 282.2 276.4 289.5 2.72 5 850 1324 -2.1 -6.3 73 4.2 -3.7 95 31 283.9 284.4 277.6 292.0 2.80 6 781 1990 -7.5 -8.5 93 1.0 -7.8 86 30 285.1 285.6 277.9 292.6 2.57 7 731 2504 -8.9 -15.9 57 7.0 -10.9 79 29 289.0 289.3 278.4 293.6 1.51 8 700 2838 -11.7 -18.7 56 7.0 -13.5 75 29 289.5 289.7 278.3 293.3 1.25 9 589 4134 -22.3 -23.4 91 1.1 -22.5 85 18 291.9 292.0 279.0 294.9 0.98 10 573 4337 -21.5 -26.3 65 4.8 -22.4 87 17 295.1 295.2 280.3 297.6 0.78 11 500 5330 -27.7 -32.2 65 4.5 -28.3 95 8 299.3 299.4 281.7 301.0 0.51 12 471 5756 -31.5 -33.6 82 2.1 -31.7 94 9 299.7 299.8 281.9 301.3 0.48 13 420 6555 -37.5 -41.2 68 3.7 -37.8 91 10 302.0 302.1 282.5 302.9 0.25 14 408 6755 -39.1 -46.1 47 7.0 -39.5 90 11 302.5 302.5 282.6 303.0 0.15 15 402 6856 -39.3 -57.3 13 18.0 -39.9 90 11 303.5 303.5 282.8 303.6 0.04 16 400 6890 -39.5 -58.5 12 19.0 -40.2 90 11 303.7 303.7 282.9 303.8 0.04 17 389 7080 -40.3 -62.3 8 22.0 -40.9 81 12 305.0 305.0 283.4 305.1 0.02 18 384 7168 -39.7 -66.7 4 27.0 -40.4 77 12 307.0 307.0 284.2 307.0 0.01 19 300 8810 -51.9 -63.9 22 12.0 -52.1 360 20 312.2 312.2 286.1 312.3 0.02 20 264 9628 -58.7 -67.7 30 9.0 -58.8 346 28 313.9 313.9 286.7 313.9 0.02 21 250 9970 -59.7 -68.7 30 9.0 -59.8 340 32 317.3 317.3 287.9 317.4 0.01 22 247 10045 -60.1 -69.1 30 9.0 -60.2 339 30 317.8 317.8 288.1 317.9 0.01 23 229 10515 -61.1 -72.1 22 11.0 -61.2 335 19 323.2 323.2 289.8 323.3 0.01 24 200 11360 -58.5 -80.5 4 22.0 -58.7 245 10 340.1 340.1 294.3 340.1 0.00 25 180 12022 -57.3 -82.3 3 25.0 -57.5 256 10 352.5 352.5 297.2 352.5 0.00 26 150 13170 -57.9 -83.9 2 26.0 -58.2 275 10 370.3 370.3 300.6 370.3 0.00 27 100 15710 -61.1 -86.1 2 25.0 -61.4 250 22 409.7 409.7 306.5 409.7 0.00 28 70 17920 -62.5 -87.5 2 25.0 -62.8 260 33 450.7 450.7 310.9 450.7 0.00 29 50 19970 -65.5 -88.5 3 23.0 -65.8 280 36 489.1 489.1 314.1 489.1 0.00 30 44 20746 -66.1 -89.1 3 23.0 -66.4 505.9 505.9 315.4 505.9 0.00 TRP 229 10515 -61.1 -72.1 22 11.0 -61.2 335 19 323.2 323.2 289.8 323.3 0.01 WND Sounding variables and indices 1000-500 mb thick: 5319.00 m Freezing level: 885.00 mb = 1007.60 m = 3305.73 ft Wetbulb zero: 939.65 mb = 521.64 m = 1711.41 ft Precipitable water: 0.39 inches Sfc-500 mean rel hum: 68.91 % Est. max temperature: 10.60 C = 51.08 F Sfc-Lift cond lev (LCL): 908.89 mb = 786.87 m = 2581.57 ft T: 1.47 C 700-500 lapse rate: 6.42 C/km ThetaE index: 0.85 C Layer 974.0- 925.0 mb Conv cond level (CCL): 787.60 mb = 1923.88 m = 6311.86 ft Mean mixing ratio: 2.88 g/kg Conv temperature: 11.60 C = 52.88 F Cap Strength: 6.61 C Lifted Index: 8.96 C Risk: None Lifted Index @300 mb: 16.20 C Lifted Index @700 mb: 4.31 C Showalter Index: 7.03 C Risk: None Total Totals Index: 47.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.60 C Cross Totals Index: 21.40 C K Index: 12.30 Risk: None Sweat Index: 70.00 Risk: None Energy Index: 1.83 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.66 J/kg Max Up Vert Vel: 4.16 m/s Conv Inhibition (B-): 27963.31 J/kg Cap Strength: 8.90 C Lift Cond Lev (LCL): 832.59 mb = 1486.83 m = 4877.98 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 112 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 ---------------------------------------------------------- 0 997 52 45 10 -7.1 -7.1 | 327 16 8.5 -13.3 1 925 646 75 38 -36.7 -9.8 | 53 27 -21.1 -16.0 2 850 1324 95 31 -30.9 2.7 | 77 16 -15.3 -3.5 3 700 2838 75 29 -28.0 -7.5 | 42 19 -12.4 -13.7 4 500 5330 95 8 -8.0 0.7 | 306 9 7.6 -5.5 5 400 6890 90 11 -11.0 0.0 | 324 8 4.6 -6.2 6 300 8810 360 20 -0.0 -20.0 | 329 30 15.6 -26.2 7 250 9970 340 32 10.9 -30.1 | 324 45 26.5 -36.3 8 229 10515 335 19 8.0 -17.2 | 315 33 23.6 -23.4 9 200 11360 245 10 9.1 4.2 | 275 25 24.6 -2.0 10 150 13170 275 10 10.0 -0.9 | 285 27 25.5 -7.1 11 100 15710 250 22 20.7 7.5 | 268 36 36.3 1.3 12 70 17920 260 33 32.5 5.7 | 271 48 48.1 -0.5 13 50 19970 280 36 35.5 -6.3 | 284 53 51.0 -12.5 Wind Parameters Mean winds (0-6000m): 81.7 at 22.4 knts Storm direction: 111.7 at 16.8 knts Shear (0-3000m) pos: 4.3 neg: 1.4 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 73.8 deg Storm rel helicity (0-3000m) pos: 195.7 neg: -46.4 tot: 149.3 m^2/s^2 ave: 49.8 10^-3 m/s^2 rel: 0.47 Storm rel vorticity (0-3000m) horiz: 9.8 stream: 4.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.20 Bulk Shear: 3.94 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 68 22 17 15| 25.6 0.0 25.6|117.7 0.0 117.7 235.4 0.94| 26.4 24.8 1000 75 29 41 18| 14.0 0.0 14.0|180.9 0.0 180.9 180.9 0.86| 20.3 17.5 1500 81 30 51 18| 8.6 0.0 8.6|195.7 -6.0 189.7 126.5 0.78| 15.8 12.3 2000 83 30 55 17| 6.4 0.9 7.3|195.7 -21.0 174.7 87.4 0.65| 12.8 8.3 2500 83 30 55 17| 5.1 1.4 6.6|195.7 -36.1 159.6 63.8 0.55| 10.9 6.0 3000 82 30 53 17| 4.3 1.4 5.7|195.7 -46.4 149.3 49.8 0.47| 9.8 4.6 4000 81 28 49 16| 2.6 1.1 3.7|195.7 -58.0 137.7 34.4 0.35| 8.5 3.0 5000 81 25 43 14| 1.7 0.9 2.6|195.7 -72.9 122.9 24.6 0.20| 7.7 1.6 6000 82 22 35 11| 1.4 0.7 2.1|198.2 -76.6 121.6 20.3 0.19| 6.7 1.2 Wrote GIF file: /home/apache/climate/data/raob//BIKF/skewt/BIKF.skewt.20251207.11.gif