UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120811.upa.cvt Date: 1100Z 8 DEC 25 Searching for BIKF... Searching the city database file for: BIKF ... Date:1100Z 8 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 -39 55 8 SFC 991 52 5.6 -1.4 61 7.0 2.6 55 8 279.5 280.1 276.2 289.2 3.48 2 925 596 2.8 -6.2 52 9.0 -0.6 85 23 282.2 282.6 276.5 289.6 2.60 3 850 1274 -1.9 -6.9 69 5.0 -3.7 90 17 284.2 284.6 277.6 291.9 2.68 4 846 1312 -2.1 -7.1 69 5.0 -3.9 90 17 284.3 284.8 277.6 292.0 2.65 5 838 1387 -1.3 -8.3 59 7.0 -3.8 91 17 285.9 286.4 278.2 293.0 2.44 6 752 2238 -9.1 -13.1 73 4.0 -10.3 96 18 286.5 286.8 277.6 291.9 1.85 7 700 2790 -11.5 -15.8 70 4.3 -12.7 100 18 289.7 290.0 278.9 294.6 1.59 8 692 2878 -11.7 -14.8 78 3.1 -12.6 100 18 290.5 290.8 279.4 295.8 1.75 9 687 2933 -11.9 -16.5 69 4.6 -13.2 101 18 290.9 291.1 279.3 295.5 1.53 10 678 3034 -11.7 -23.7 36 12.0 -14.3 101 18 292.2 292.3 279.0 294.8 0.83 11 665 3182 -12.5 -19.5 56 7.0 -14.2 102 17 292.9 293.1 279.8 296.7 1.23 12 648 3379 -13.9 -18.9 66 5.0 -15.2 102 17 293.5 293.7 280.3 297.6 1.32 13 591 4070 -18.9 -22.7 72 3.8 -19.7 105 15 295.5 295.7 280.8 298.8 1.04 14 504 5233 -27.9 -30.9 75 3.0 -28.3 110 13 298.3 298.4 281.4 300.2 0.58 15 500 5290 -28.1 -31.4 73 3.3 -28.5 110 13 298.8 298.9 281.6 300.6 0.55 16 428 6392 -35.5 -38.9 71 3.4 -35.8 107 14 302.9 303.0 283.0 304.0 0.31 17 410 6690 -37.9 -42.7 61 4.8 -38.2 106 15 303.6 303.6 283.1 304.3 0.22 18 400 6860 -39.5 -43.3 67 3.8 -39.8 105 15 303.7 303.7 283.1 304.4 0.21 19 381 7190 -42.1 -44.1 81 2.0 -42.2 110 16 304.5 304.5 283.5 305.2 0.20 20 301 8739 -54.3 -60.3 48 6.0 -54.4 135 21 308.5 308.5 284.8 308.7 0.04 21 300 8760 -54.5 -60.5 47 6.0 -54.6 135 21 308.5 308.5 284.8 308.7 0.04 22 278 9242 -58.9 -63.0 59 4.1 -59.0 128 22 309.0 309.0 284.9 309.1 0.03 23 256 9754 -62.5 -66.1 62 3.6 -62.6 121 24 311.0 311.0 285.7 311.1 0.02 24 252 9851 -63.1 -67.5 55 4.4 -63.1 120 24 311.5 311.5 285.9 311.6 0.02 25 250 9900 -62.9 -67.4 54 4.5 -62.9 125 27 312.6 312.6 286.2 312.6 0.02 26 231 10395 -57.5 -73.5 11 16.0 -57.6 152 19 327.9 327.9 291.1 327.9 0.01 27 222 10646 -58.9 -73.9 13 15.0 -59.0 165 15 329.5 329.5 291.6 329.5 0.01 28 202 11246 -55.1 -79.1 4 24.0 -55.4 197 6 344.5 344.5 295.4 344.5 0.00 29 200 11310 -55.3 -79.3 4 24.0 -55.6 200 5 345.2 345.2 295.6 345.2 0.00 30 150 13130 -57.1 -84.1 2 27.0 -57.4 240 14 371.7 371.7 300.9 371.7 0.00 31 100 15690 -58.5 -86.5 2 28.0 -58.9 255 23 414.7 414.7 307.1 414.7 0.00 32 83 16863 -58.1 -86.1 2 28.0 -58.5 250 29 438.2 438.2 309.7 438.2 0.00 33 70 17930 -60.9 -87.9 2 27.0 -61.3 245 34 454.1 454.1 311.3 454.1 0.00 34 50 20000 -64.3 -89.3 2 25.0 -64.6 265 44 492.0 492.0 314.4 492.0 0.00 35 30 23110 -67.3 -91.3 2 24.0 -67.7 275 51 561.2 561.2 318.7 561.2 0.00 36 28 23524 -67.5 -91.5 2 24.0 -67.9 275 54 571.8 571.8 319.2 571.8 0.00 37 28 23524 -66.9 -90.9 2 24.0 -67.3 275 54 573.5 573.5 319.3 573.5 0.00 38 21 25226 -73.9 -93.9 3 20.0 -74.1 275 68 601.5 601.5 320.7 601.5 0.00 39 20 25510 -73.9 -93.9 3 20.0 -74.1 275 70 610.0 610.0 321.0 610.0 0.00 40 11 28971 -77.1 -95.1 4 18.0 -77.3 712.1 712.1 324.8 712.1 0.00 TRP 252 9851 -63.1 -67.5 55 4.4 -63.1 120 24 311.5 311.5 285.9 311.6 0.02 WND Sounding variables and indices 1000-500 mb thick: 5329.00 m Freezing level: 880.32 mb = 999.91 m = 3280.52 ft Wetbulb zero: 937.68 mb = 488.54 m = 1602.79 ft Precipitable water: 0.39 inches Sfc-500 mean rel hum: 66.26 % Est. max temperature: 11.45 C = 52.61 F Sfc-Lift cond lev (LCL): 889.71 mb = 907.92 m = 2978.70 ft T: 0.64 C 700-500 lapse rate: 6.64 C/km ThetaE index: 1.09 C Layer 752.0- 700.0 mb Conv cond level (CCL): 772.32 mb = 2028.30 m = 6654.44 ft Mean mixing ratio: 2.89 g/kg Conv temperature: 12.47 C = 54.45 F Cap Strength: 8.12 C Lifted Index: 8.38 C Risk: None Lifted Index @300 mb: 13.45 C Lifted Index @700 mb: 4.36 C Showalter Index: 6.74 C Risk: None Total Totals Index: 47.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.20 C Cross Totals Index: 21.20 C K Index: 15.00 Risk: None Sweat Index: 47.00 Risk: None Energy Index: 1.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 12.25 J/kg Max Up Vert Vel: 4.95 m/s Conv Inhibition (B-): 48114.71 J/kg Cap Strength: 8.35 C Lift Cond Lev (LCL): 830.56 mb = 1457.19 m = 4780.75 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 128 at 12 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 ---------------------------------------------------------- 0 991 52 55 8 -6.6 -4.6 | 346 12 3.1 -12.0 1 925 596 85 23 -22.9 -2.0 | 55 16 -13.3 -9.5 2 850 1274 90 17 -17.0 0.0 | 45 11 -7.4 -7.5 3 700 2790 100 18 -17.7 3.1 | 62 9 -8.1 -4.3 4 500 5290 110 13 -12.2 4.4 | 41 4 -2.6 -3.0 5 400 6860 105 15 -14.5 3.9 | 54 6 -4.9 -3.6 6 300 8760 135 21 -14.8 14.8 | 145 9 -5.2 7.4 7 252 9851 120 24 -20.8 12.0 | 112 12 -11.2 4.5 8 250 9900 125 27 -22.1 15.5 | 123 15 -12.5 8.0 9 200 11310 200 5 1.7 4.7 | 284 12 11.3 -2.8 10 150 13130 240 14 12.1 7.0 | 271 22 21.7 -0.5 11 100 15690 255 23 22.2 6.0 | 273 32 31.8 -1.5 12 70 17930 245 34 30.8 14.4 | 260 41 40.4 6.9 13 50 20000 265 44 43.8 3.8 | 274 54 53.4 -3.6 14 30 23110 275 51 50.8 -4.4 | 281 62 60.4 -11.9 15 20 25510 275 70 69.7 -6.1 | 280 80 79.3 -13.6 Wind Parameters Mean winds (0-6000m): 97.8 at 16.2 knts Storm direction: 127.8 at 12.2 knts Shear (0-3000m) pos: 2.3 neg: 0.0 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 75.6 deg Storm rel helicity (0-3000m) pos: 67.9 neg: -6.8 tot: 61.1 m^2/s^2 ave: 20.4 10^-3 m/s^2 rel: 0.66 Storm rel vorticity (0-3000m) horiz: 4.5 stream: 3.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 2.65 Bulk Shear: 4.62 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 76 15 24 12| 15.6 0.0 15.6| 55.1 0.0 55.1 110.2 0.97| 16.1 15.7 1000 82 18 40 13| 6.7 0.0 6.7| 60.6 -4.2 56.4 56.4 0.75| 10.6 7.9 1500 85 18 42 12| 4.0 0.0 4.0| 61.7 -6.7 55.0 36.7 0.65| 7.9 5.1 2000 87 18 44 12| 3.2 0.0 3.2| 64.2 -6.7 57.6 28.8 0.66| 6.2 4.1 2500 89 18 46 11| 2.7 0.0 2.7| 66.7 -6.7 60.1 24.0 0.67| 5.2 3.5 3000 91 18 48 11| 2.3 0.0 2.3| 67.9 -6.8 61.1 20.4 0.66| 4.5 3.0 4000 94 17 51 10| 1.5 0.0 1.5| 67.9 -7.9 60.0 15.0 0.59| 3.7 2.2 5000 96 17 51 9| 1.1 0.0 1.1| 67.9 -9.3 58.6 11.7 0.51| 3.2 1.6 6000 98 16 51 8| 0.9 0.1 1.0| 68.5 -9.6 58.9 9.8 0.49| 2.8 1.4 Wrote GIF file: /home/apache/climate/data/raob//BIKF/skewt/BIKF.skewt.20251208.11.gif