UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120923.upa.cvt Date: 2300Z 9 DEC 25 Searching for BIKF... Searching the city database file for: BIKF ... Date:2300Z 9 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 -86 SFC 985 52 6.2 -1.8 56 8.0 2.8 60 12 280.6 281.1 276.7 290.1 3.40 2 925 550 4.0 -5.0 52 9.0 0.4 85 30 283.4 283.9 277.4 291.5 2.84 3 850 1232 -0.5 -4.8 73 4.3 -2.2 105 33 285.6 286.2 278.9 294.7 3.14 4 781 1904 -4.7 -8.4 75 3.7 -6.0 88 31 288.1 288.6 279.4 295.7 2.59 5 700 2754 -12.1 -12.6 96 0.5 -12.2 65 29 289.1 289.4 279.2 295.2 2.07 6 670 3088 -14.7 -14.8 99 0.1 -14.7 70 28 289.8 290.1 279.2 295.2 1.81 7 618 3695 -18.7 -18.7 100 0.0 -18.7 78 26 292.0 292.2 279.7 296.3 1.41 8 591 4027 -20.9 -22.2 89 1.3 -21.2 83 25 293.2 293.4 279.8 296.6 1.09 9 572 4268 -20.9 -31.9 37 11.0 -22.5 86 24 295.9 296.0 280.2 297.5 0.46 10 521 4952 -25.9 -28.9 76 3.0 -26.3 96 22 297.9 298.1 281.4 300.1 0.67 11 510 5107 -26.5 -30.7 68 4.2 -27.1 98 21 299.0 299.1 281.7 300.9 0.58 12 500 5250 -25.5 -29.5 69 4.0 -26.1 100 21 301.9 302.1 283.1 304.1 0.66 13 498 5279 -25.3 -29.2 70 3.9 -25.9 101 21 302.5 302.7 283.3 304.8 0.69 14 462 5818 -28.9 -31.7 77 2.8 -29.3 114 23 304.6 304.7 284.0 306.6 0.58 15 400 6830 -36.7 -39.3 77 2.6 -36.9 140 28 307.3 307.4 284.7 308.4 0.32 16 308 8588 -49.9 -53.1 69 3.2 -50.0 158 49 312.7 312.7 286.4 313.0 0.09 17 300 8760 -50.7 -54.2 66 3.5 -50.8 160 51 313.9 313.9 286.8 314.2 0.08 18 250 9930 -59.1 -63.1 60 4.0 -59.2 165 71 318.2 318.2 288.2 318.3 0.03 19 247 10006 -59.7 -64.1 56 4.4 -59.7 170 73 318.4 318.4 288.3 318.5 0.03 20 245 10056 -60.1 -64.8 54 4.7 -60.2 171 71 318.6 318.6 288.3 318.7 0.03 21 234 10342 -60.9 -63.3 73 2.4 -60.9 177 57 321.6 321.6 289.3 321.7 0.03 22 228 10503 -61.5 -68.5 39 7.0 -61.6 180 50 323.0 323.0 289.7 323.1 0.02 23 225 10586 -59.7 -79.7 6 20.0 -59.8 181 48 327.0 327.0 290.9 327.0 0.00 24 200 11330 -54.9 -78.9 4 24.0 -55.2 185 33 345.8 345.8 295.7 345.8 0.00 25 190 11660 -52.7 -79.7 2 27.0 -53.1 188 33 354.5 354.5 297.6 354.5 0.00 26 150 13180 -55.3 -82.3 2 27.0 -55.6 200 32 374.8 374.8 301.4 374.8 0.00 27 100 15750 -57.1 -85.1 2 28.0 -57.5 230 40 417.4 417.4 307.4 417.4 0.00 28 76 17484 -59.9 -86.9 2 27.0 -60.3 242 44 445.6 445.6 310.4 445.6 0.00 29 70 18000 -59.3 -87.3 1 28.0 -59.7 245 45 457.5 457.5 311.5 457.5 0.00 30 65 18465 -58.1 -86.1 2 28.0 -58.7 246 42 469.9 469.9 312.6 470.0 0.00 31 53 19738 -62.1 -88.1 2 26.0 -62.5 249 33 488.9 488.9 314.1 488.9 0.00 32 50 20100 -60.3 -88.3 1 28.0 -60.9 250 31 501.4 501.4 315.1 501.4 0.00 33 48 20355 -59.7 -87.7 1 28.0 -60.3 251 33 508.7 508.7 315.5 508.7 0.00 34 37 21967 -63.5 -89.5 2 26.0 -64.0 259 43 538.3 538.3 317.4 538.3 0.00 35 32 22862 -61.3 -89.3 1 28.0 -62.0 263 48 567.0 567.0 319.0 567.0 0.00 36 30 23260 -64.1 -90.1 2 26.0 -64.7 265 51 569.9 569.9 319.2 569.9 0.00 37 24 24616 -68.7 -91.7 2 23.0 -69.1 265 54 594.1 594.1 320.3 594.1 0.00 38 20 25710 -68.9 -91.9 2 23.0 -69.4 265 57 625.3 625.3 321.7 625.3 0.00 39 18 26338 -70.1 -93.1 2 23.0 -70.5 640.6 640.6 322.3 640.6 0.00 40 18 26338 -70.1 -93.1 2 23.0 -70.5 640.6 640.6 322.3 640.6 0.00 TRP 228 10503 -61.5 -68.5 39 7.0 -61.6 180 50 323.0 323.0 289.7 323.1 0.02 WND 247 10006 -59.7 -64.1 56 4.4 -59.7 170 73 318.4 318.4 288.3 318.5 0.03 Sounding variables and indices 1000-500 mb thick: 5336.00 m Freezing level: 858.33 mb = 1156.22 m = 3793.33 ft Wetbulb zero: 912.77 mb = 657.34 m = 2156.61 ft Precipitable water: 0.44 inches Sfc-500 mean rel hum: 75.29 % Est. max temperature: 11.77 C = 53.18 F Sfc-Lift cond lev (LCL): 870.80 mb = 1037.05 m = 3402.34 ft T: 0.79 C 700-500 lapse rate: 5.37 C/km ThetaE index: 0.48 C Layer 700.0- 618.0 mb Conv cond level (CCL): 757.35 mb = 2142.59 m = 7029.42 ft Mean mixing ratio: 3.04 g/kg Conv temperature: 14.01 C = 57.23 F Cap Strength: 7.41 C Lifted Index: 9.64 C Risk: None Lifted Index @300 mb: 15.96 C Lifted Index @700 mb: 2.56 C Showalter Index: 7.29 C Risk: None Total Totals Index: 45.70 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.00 C Cross Totals Index: 20.70 C K Index: 19.70 Risk: < 20 % chance of thunderstorms Sweat Index: 87.00 Risk: None Energy Index: 1.89 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 14.55 J/kg Max Up Vert Vel: 5.39 m/s Conv Inhibition (B-): 47697.04 J/kg Cap Strength: 9.09 C Lift Cond Lev (LCL): 822.50 mb = 1493.00 m = 4898.24 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 117 at 20 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 ---------------------------------------------------------- 0 985 52 60 12 -10.4 -6.0 | 334 17 7.3 -15.1 1 925 550 85 30 -29.9 -2.6 | 46 17 -12.2 -11.7 2 850 1232 105 33 -31.9 8.5 | 88 14 -14.2 -0.6 3 700 2754 65 29 -26.3 -12.3 | 22 23 -8.6 -21.4 4 500 5250 100 21 -20.7 3.6 | 28 6 -3.0 -5.5 5 400 6830 140 28 -18.0 21.4 | 179 12 -0.3 12.4 6 300 8760 160 51 -17.4 47.9 | 180 39 0.3 38.8 7 250 9930 165 71 -18.4 68.6 | 179 59 -0.7 59.5 8 247 10006 170 73 -12.7 71.9 | 185 63 5.0 62.8 9 228 10503 180 50 0.0 50.0 | 203 45 17.7 40.9 10 200 11330 185 33 2.9 32.9 | 221 31 20.6 23.8 11 150 13180 200 32 10.9 30.1 | 234 36 28.7 21.0 12 100 15750 230 40 30.6 25.7 | 251 51 48.4 16.6 13 70 18000 245 45 40.8 19.0 | 260 59 58.5 9.9 14 50 20100 250 31 29.1 10.6 | 268 47 46.9 1.5 15 30 23260 265 51 50.8 4.4 | 274 69 68.5 -4.7 16 20 25710 265 57 56.8 5.0 | 273 75 74.5 -4.1 Wind Parameters Mean winds (0-6000m): 87.2 at 26.6 knts Storm direction: 117.2 at 19.9 knts Shear (0-3000m) pos: 4.2 neg: 2.8 tot: 7.0 10-3/s Storm rel Dir Shear (0-3000m): 49.9 deg Storm rel helicity (0-3000m) pos: 132.2 neg: -92.4 tot: 39.8 m^2/s^2 ave: 13.3 10^-3 m/s^2 rel: 0.22 Storm rel vorticity (0-3000m) horiz: 9.5 stream: 2.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.45 Bulk Shear: 5.95 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 78 21 12 14| 20.4 0.0 20.4| 84.6 0.0 84.6 169.3 0.99| 20.9 20.7 1000 87 26 38 13| 12.5 0.0 12.5|117.0 0.0 117.0 117.0 0.98| 14.7 14.4 1500 92 28 53 13| 8.3 0.6 8.9|127.5 -17.2 110.4 73.6 0.73| 12.3 9.1 2000 92 29 54 14| 6.2 2.3 8.6|127.5 -46.7 80.8 40.4 0.45| 11.1 5.1 2500 89 29 50 15| 5.0 3.3 8.3|127.5 -78.7 48.9 19.5 0.27| 10.4 2.8 3000 86 29 45 16| 4.2 2.8 7.0|132.2 -92.4 39.8 13.3 0.22| 9.5 2.1 4000 83 29 40 16| 3.5 2.1 5.6|140.8 -92.4 48.5 12.1 0.22| 8.0 1.8 5000 84 27 38 15| 3.0 1.7 4.7|141.9 -92.7 49.2 9.8 0.20| 7.1 1.4 6000 87 27 40 14| 3.2 1.4 4.6|150.9 -93.1 57.8 9.6 0.27| 6.8 1.9 Wrote GIF file: /home/apache/climate/data/raob//BIKF/skewt/BIKF.skewt.20251209.23.gif