UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121223.upa.cvt Date: 2300Z 12 DEC 25 Searching for BIKF... Searching the city database file for: BIKF ... Date:2300Z 12 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 -225 SFC 968 52 5.2 3.3 88 1.9 4.3 290 7 281.0 281.8 279.0 294.8 5.01 2 925 412 3.0 1.5 90 1.5 2.3 285 28 282.4 283.2 279.2 295.2 4.61 3 850 1093 0.2 -3.5 76 3.7 -1.3 285 24 286.4 287.0 279.7 296.3 3.47 4 800 1577 -2.3 -7.1 70 4.8 -4.1 285 24 288.7 289.2 280.0 296.9 2.80 5 770 1879 -4.9 -7.7 81 2.8 -5.9 285 23 289.1 289.6 280.1 297.2 2.78 6 733 2264 -6.9 -14.9 53 8.0 -9.3 285 23 291.0 291.3 279.5 295.9 1.64 7 700 2622 -9.9 -14.9 67 5.0 -11.3 285 23 291.5 291.8 279.8 296.7 1.72 8 666 3003 -13.1 -16.7 74 3.6 -14.0 283 23 292.1 292.4 279.9 296.8 1.55 9 646 3235 -14.1 -24.1 42 10.0 -16.2 281 22 293.5 293.7 279.6 296.2 0.84 10 617 3581 -17.3 -21.7 69 4.4 -18.3 279 22 293.7 293.9 280.1 297.2 1.09 11 562 4274 -22.3 -37.3 24 15.0 -24.1 275 21 295.8 295.8 279.9 296.7 0.28 12 546 4485 -23.7 -40.7 19 17.0 -25.5 274 21 296.6 296.6 280.1 297.3 0.20 13 500 5120 -29.7 -39.7 37 10.0 -30.6 270 20 296.8 296.9 280.3 297.7 0.24 14 447 5909 -35.9 -46.9 31 11.0 -36.5 237 20 298.7 298.7 281.0 299.1 0.13 15 424 6274 -39.1 -42.6 69 3.5 -39.3 222 20 299.1 299.2 281.3 299.9 0.21 16 400 6670 -42.9 -46.2 70 3.3 -43.0 205 20 299.2 299.3 281.2 299.8 0.15 17 388 6875 -44.7 -46.5 82 1.8 -44.8 217 22 299.5 299.5 281.3 300.0 0.15 18 385 6927 -45.1 -46.1 90 1.0 -45.2 220 23 299.6 299.7 281.4 300.2 0.16 19 381 6996 -45.9 -47.1 88 1.2 -45.9 224 24 299.5 299.5 281.3 300.0 0.14 20 373 7137 -46.3 -54.3 40 8.0 -46.6 232 25 300.8 300.8 281.8 301.0 0.06 21 365 7281 -47.1 -54.1 45 7.0 -47.3 240 27 301.6 301.6 282.1 301.8 0.07 22 361 7354 -45.5 -74.5 2 29.0 -45.9 242 29 304.7 304.7 283.2 304.7 0.00 23 346 7639 -43.9 -70.9 3 27.0 -44.5 248 35 310.6 310.6 285.5 310.6 0.01 24 300 8590 -47.1 -73.1 4 26.0 -47.6 270 58 319.0 319.0 288.4 319.0 0.01 25 295 8701 -47.9 -73.0 4 25.1 -48.3 275 59 319.4 319.4 288.5 319.4 0.01 26 289 8836 -48.9 -72.9 4 24.0 -49.3 273 59 319.8 319.8 288.7 319.9 0.01 27 272 9235 -47.7 -73.7 3 26.0 -48.1 268 57 327.2 327.2 290.9 327.2 0.01 28 250 9790 -48.3 -77.3 2 29.0 -48.8 260 55 334.3 334.3 292.9 334.3 0.00 29 200 11240 -52.1 -81.1 2 29.0 -52.5 260 44 350.3 350.3 296.7 350.3 0.00 30 191 11537 -53.7 -81.7 2 28.0 -54.0 259 44 352.3 352.3 297.1 352.3 0.00 31 150 13090 -53.7 -82.7 2 29.0 -54.1 255 45 377.5 377.5 301.9 377.6 0.00 32 127 14153 -57.5 -84.5 2 27.0 -57.8 251 42 389.1 389.1 303.6 389.1 0.00 33 110 15066 -55.9 -84.9 1 29.0 -56.3 247 40 408.4 408.4 306.3 408.4 0.00 34 100 15670 -58.5 -85.5 2 27.0 -58.9 245 38 414.7 414.7 307.1 414.7 0.00 35 94 16057 -60.1 -86.1 2 26.0 -60.4 247 39 419.0 419.0 307.6 419.0 0.00 36 87 16543 -56.9 -85.9 1 29.0 -57.4 249 40 434.8 434.8 309.3 434.8 0.00 37 70 17910 -59.9 -86.9 2 27.0 -60.3 255 43 456.2 456.2 311.4 456.3 0.00 38 50 20000 -61.9 -88.9 2 27.0 -62.4 245 46 497.6 497.6 314.8 497.6 0.00 39 30 23130 -66.5 -90.5 2 24.0 -66.9 215 43 563.4 563.4 318.8 563.4 0.00 40 20 25560 -69.3 -92.3 2 23.0 -69.7 230 45 624.0 624.0 321.6 624.1 0.00 41 17 26521 -72.3 -93.3 3 21.0 -72.6 231 49 644.1 644.1 322.4 644.1 0.00 42 17 26521 -69.1 -92.1 2 23.0 -69.6 231 49 654.4 654.4 322.9 654.4 0.00 43 13 28108 -72.1 -94.1 2 22.0 -72.5 233 57 696.2 696.2 324.3 696.2 0.00 44 13 28108 -67.1 -92.1 2 25.0 -67.9 233 57 713.5 713.5 324.8 713.5 0.01 45 13 28108 -65.5 -91.5 2 26.0 -66.5 233 57 719.0 719.0 325.0 719.1 0.01 46 10 29680 -71.1 -94.1 2 23.0 -71.7 235 64 754.2 754.2 326.0 754.2 0.01 47 8.4 30715 -69.9 -93.9 2 24.0 -70.8 797.4 797.4 327.2 797.5 0.01 TRP 365 7281 -47.1 -54.1 45 7.0 -47.3 240 27 301.6 301.6 282.1 301.8 0.07 WND 295 8701 -47.9 -73.0 4 25.1 -48.3 275 59 319.4 319.4 288.5 319.4 0.01 Sounding variables and indices 1000-500 mb thick: 5345.00 m Freezing level: 846.00 mb = 1131.69 m = 3712.85 ft Wetbulb zero: 877.41 mb = 837.35 m = 2747.18 ft Precipitable water: 0.43 inches Sfc-500 mean rel hum: 60.07 % Est. max temperature: 12.02 C = 53.64 F Sfc-Lift cond lev (LCL): 940.06 mb = 284.02 m = 931.82 ft T: 3.78 C 700-500 lapse rate: 7.93 C/km ThetaE index: 1.27 C Layer 733.0- 700.0 mb Conv cond level (CCL): 837.50 mb = 1211.19 m = 3973.66 ft Mean mixing ratio: 4.43 g/kg Conv temperature: 11.12 C = 52.02 F Cap Strength: 3.12 C Lifted Index: 2.57 C Risk: None Lifted Index @300 mb: 16.81 C Lifted Index @700 mb: 2.27 C Showalter Index: 1.86 C Risk: Showers probable Total Totals Index: 56.10 C Risk: Severe Thunderstorms probable Vertical Totals Index: 29.90 C Cross Totals Index: 26.20 C K Index: 21.40 Risk: 20-40 % chance of thunderstorms Sweat Index: 210.00 Risk: None Energy Index: 0.28 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 16.19 J/kg Max Up Vert Vel: 5.69 m/s Conv Inhibition (B-): 65333.88 J/kg Cap Strength: 3.05 C Lift Cond Lev (LCL): 888.51 mb = 736.15 m = 2415.17 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 307 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 ---------------------------------------------------------- 0 968 52 290 7 6.6 -2.4 | 139 10 -6.5 7.6 1 925 412 285 28 27.0 -7.2 | 259 14 13.9 2.8 2 850 1093 285 24 23.2 -6.2 | 249 11 10.1 3.8 3 700 2622 285 23 22.2 -6.0 | 246 10 9.1 4.1 4 500 5120 270 20 20.0 -0.0 | 215 12 6.9 10.0 5 400 6670 205 20 8.5 18.1 | 171 29 -4.7 28.1 6 365 7281 240 27 23.4 13.5 | 204 26 10.3 23.5 7 300 8590 270 58 58.0 -0.0 | 257 46 44.9 10.0 8 295 8701 275 59 58.8 -5.1 | 264 46 45.7 4.9 9 250 9790 260 55 54.2 9.6 | 245 45 41.1 19.6 10 200 11240 260 44 43.3 7.6 | 240 35 30.2 17.7 11 150 13090 255 45 43.5 11.6 | 234 37 30.4 21.7 12 100 15670 245 38 34.4 16.1 | 219 34 21.3 26.1 13 70 17910 255 43 41.5 11.1 | 233 35 28.4 21.1 14 50 20000 245 46 41.7 19.4 | 224 41 28.6 29.5 15 30 23130 215 43 24.7 35.2 | 194 47 11.6 45.2 16 20 25560 230 45 34.5 28.9 | 209 44 21.4 38.9 17 10 29680 235 64 52.4 36.7 | 220 61 39.3 46.7 Wind Parameters Mean winds (0-6000m): 277.4 at 22.0 knts Storm direction: 307.4 at 16.5 knts Shear (0-3000m) pos: 0.0 neg: 2.7 tot: 2.7 10-3/s Storm rel Dir Shear (0-3000m): 100.2 deg Storm rel helicity (0-3000m) pos: 29.4 neg: -10.9 tot: 18.5 m^2/s^2 ave: 6.2 10^-3 m/s^2 rel: 0.44 Storm rel vorticity (0-3000m) horiz: 4.7 stream: 2.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 9.91 Bulk Shear: 1.63 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 ------------------------------------------------------------------------------- 500 286 20 234 8| 0.0 20.8 20.8| 29.4 -1.0 28.4 56.8 0.71| 22.5 15.9 1000 285 23 246 10| 0.0 8.9 8.9| 29.4 -5.9 23.5 23.5 0.56| 12.8 7.2 1500 285 23 247 10| 0.0 5.7 5.7| 29.4 -6.8 22.6 15.1 0.54| 8.7 4.7 2000 285 23 247 10| 0.0 4.2 4.2| 29.4 -7.3 22.1 11.0 0.52| 6.6 3.5 2500 285 23 247 10| 0.0 3.3 3.3| 29.4 -7.8 21.5 8.6 0.51| 5.4 2.7 3000 285 23 247 10| 0.0 2.7 2.7| 29.4 -10.9 18.5 6.2 0.44| 4.7 2.1 4000 284 23 243 10| 0.0 1.9 1.9| 29.4 -17.8 11.6 2.9 0.32| 3.8 1.2 5000 282 22 238 10| 0.0 1.4 1.4| 29.4 -24.7 4.6 0.9 0.23| 3.3 0.8 6000 277 22 230 11| 0.0 1.5 1.5| 29.4 -65.5 -36.1 -6.0 -0.03| 4.0 -0.1 Wrote GIF file: /home/apache/climate/data/raob//BIKF/skewt/BIKF.skewt.20251212.23.gif