UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120511.upa.cvt Date: 1100Z 5 DEC 25 Searching for BIKF... Searching the city database file for: BIKF ... Date:1100Z 5 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 2 40 11 SFC 995 52 3.0 0.6 84 2.4 2.0 40 11 276.5 277.2 275.3 287.5 4.01 2 939 511 -0.5 -1.4 94 0.9 -0.9 68 18 277.6 278.2 275.5 287.7 3.67 3 925 629 0.0 -1.0 93 1.0 -0.4 75 20 279.3 280.0 276.6 290.0 3.84 4 922 655 0.2 -0.9 92 1.1 -0.3 76 20 279.8 280.4 276.9 290.5 3.88 5 850 1304 -2.9 -3.9 93 1.0 -3.3 105 26 283.1 283.7 278.0 292.6 3.37 6 730 2496 -8.9 -9.6 95 0.7 -9.1 97 15 289.1 289.6 279.8 296.6 2.53 7 700 2820 -10.9 -11.7 94 0.8 -11.2 95 12 290.4 290.8 280.0 297.0 2.23 8 535 4832 -25.1 -27.4 81 2.3 -25.5 151 19 296.6 296.8 280.9 299.1 0.75 9 500 5320 -29.5 -32.3 77 2.8 -29.9 165 21 297.1 297.2 280.8 298.7 0.51 10 445 6140 -36.7 -39.5 75 2.8 -36.9 170 24 298.1 298.1 280.9 299.0 0.28 11 425 6457 -39.5 -43.0 69 3.5 -39.7 172 25 298.4 298.5 281.0 299.1 0.20 12 423 6489 -39.7 -44.3 61 4.6 -39.9 172 25 298.6 298.6 281.0 299.2 0.18 13 414 6636 -40.5 -43.5 73 3.0 -40.7 173 25 299.4 299.4 281.4 300.1 0.20 14 411 6685 -40.3 -48.3 42 8.0 -40.7 174 25 300.3 300.3 281.6 300.7 0.12 15 406 6769 -40.9 -49.9 37 9.0 -41.3 174 26 300.6 300.6 281.7 300.9 0.10 16 400 6870 -41.5 -49.5 42 8.0 -41.9 175 26 301.1 301.1 282.0 301.4 0.10 17 393 6989 -42.1 -53.1 29 11.0 -42.5 177 26 301.8 301.8 282.2 302.0 0.07 18 332 8108 -50.5 -68.5 10 18.0 -50.8 191 23 305.2 305.2 283.5 305.2 0.01 19 315 8448 -53.3 -69.3 13 16.0 -53.5 196 23 305.9 305.9 283.8 306.0 0.01 20 308 8592 -54.3 -55.5 87 1.2 -54.3 198 22 306.5 306.5 284.1 306.7 0.07 21 300 8760 -56.1 -58.2 77 2.1 -56.1 200 22 306.3 306.3 284.0 306.5 0.05 22 294 8888 -57.1 -59.9 70 2.8 -57.2 207 22 306.6 306.6 284.1 306.8 0.04 23 291 8953 -57.1 -63.1 46 6.0 -57.2 210 23 307.5 307.5 284.4 307.6 0.03 24 282 9152 -57.5 -65.5 35 8.0 -57.6 220 23 309.7 309.7 285.2 309.8 0.02 25 250 9910 -59.1 -71.1 20 12.0 -59.2 260 25 318.2 318.2 288.2 318.2 0.01 26 228 10483 -61.1 -72.1 22 11.0 -61.2 260 27 323.6 323.6 289.9 323.7 0.01 27 201 11269 -58.3 -77.3 7 19.0 -58.5 279 22 340.0 340.0 294.3 340.0 0.01 28 200 11300 -58.3 -77.3 7 19.0 -58.5 280 22 340.4 340.4 294.4 340.5 0.01 29 150 13100 -60.7 -83.7 3 23.0 -60.9 285 23 365.5 365.5 299.8 365.5 0.00 30 101 15545 -63.5 -86.5 3 23.0 -63.7 403.9 403.9 305.7 403.9 0.00 TRP 228 10483 -61.1 -72.1 22 11.0 -61.2 260 27 323.6 323.6 289.9 323.7 0.01 WND Sounding variables and indices 1000-500 mb thick: 5318.00 m Freezing level: 947.00 mb = 445.13 m = 1460.39 ft Freezing level: 925.00 mb = 629.00 m = 2063.62 ft Freezing level: 917.35 mb = 696.93 m = 2286.50 ft Wetbulb zero: 956.11 mb = 367.71 m = 1206.38 ft Precipitable water: 0.51 inches Sfc-500 mean rel hum: 89.28 % Est. max temperature: 9.79 C = 49.61 F Sfc-Lift cond lev (LCL): 958.64 mb = 346.71 m = 1137.50 ft T: 0.75 C 700-500 lapse rate: 7.44 C/km Conv cond level (CCL): 872.50 mb = 1095.48 m = 3594.06 ft Mean mixing ratio: 3.81 g/kg Conv temperature: 8.49 C = 47.27 F Cap Strength: 7.75 C Lifted Index: 7.63 C Risk: None Lifted Index @300 mb: 12.43 C Lifted Index @700 mb: 5.49 C Showalter Index: 4.76 C Risk: None Total Totals Index: 52.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.60 C Cross Totals Index: 25.60 C K Index: 21.90 Risk: 20-40 % chance of thunderstorms Sweat Index: 137.00 Risk: None Energy Index: 1.27 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 19.54 J/kg Max Up Vert Vel: 6.25 m/s Conv Inhibition (B-): 13542.14 J/kg Cap Strength: 7.75 C Lift Cond Lev (LCL): 923.54 mb = 641.69 m = 2105.25 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 152 at 14 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 ---------------------------------------------------------- 0 995 52 40 11 -7.1 -8.4 | 1 21 -0.5 -20.6 1 925 629 75 20 -19.3 -5.2 | 36 22 -12.7 -17.3 2 850 1304 105 26 -25.1 6.7 | 74 19 -18.5 -5.4 3 700 2820 95 12 -12.0 1.0 | 26 12 -5.4 -11.1 4 500 5320 165 21 -5.4 20.3 | 188 8 1.1 8.1 5 400 6870 175 26 -2.3 25.9 | 197 14 4.3 13.7 6 300 8760 200 22 7.5 20.7 | 239 16 14.1 8.5 7 250 9910 260 25 24.6 4.3 | 284 32 31.2 -7.8 8 228 10483 260 27 26.6 4.7 | 283 34 33.2 -7.5 9 200 11300 280 22 21.7 -3.8 | 300 32 28.2 -16.0 10 150 13100 285 23 22.2 -6.0 | 302 34 28.8 -18.1 Wind Parameters Mean winds (0-6000m): 121.6 at 18.4 knts Storm direction: 151.6 at 13.8 knts Shear (0-3000m) pos: 3.5 neg: 1.6 tot: 5.1 10-3/s Storm rel Dir Shear (0-3000m): 30.6 deg Storm rel helicity (0-3000m) pos: 146.6 neg: -47.5 tot: 99.1 m^2/s^2 ave: 33.0 10^-3 m/s^2 rel: 0.36 Storm rel vorticity (0-3000m) horiz: 7.1 stream: 2.6 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.50 Bulk Shear: 39.14 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 61 15 18 20| 11.1 0.0 11.1| 62.2 0.0 62.2 124.4 0.99| 11.4 11.4 1000 74 18 32 20| 10.0 0.0 10.0|117.5 0.0 117.5 117.5 0.99| 10.9 10.8 1500 86 20 45 19| 7.3 0.0 7.3|143.1 -7.3 135.8 90.6 0.87| 9.7 8.4 2000 90 21 49 19| 5.5 1.2 6.7|143.1 -24.3 118.8 59.4 0.62| 8.5 5.3 2500 92 20 49 18| 4.4 2.0 6.3|143.1 -40.0 103.1 41.2 0.43| 7.8 3.3 3000 93 19 47 16| 3.5 1.6 5.1|146.6 -47.5 99.1 33.0 0.36| 7.1 2.6 4000 98 18 49 15| 3.4 1.2 4.7|161.0 -47.5 113.5 28.4 0.43| 6.4 2.8 5000 109 18 58 12| 3.3 1.0 4.3|174.0 -47.5 126.5 25.3 0.51| 6.1 3.1 6000 122 18 75 9| 3.1 0.8 3.9|180.2 -47.5 132.7 22.1 0.51| 5.6 2.9 Wrote GIF file: /home/apache/climate/data/raob//BIKF/skewt/BIKF.skewt.20251205.11.gif