UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120911.upa.cvt Date: 1100Z 9 DEC 25 Searching for BIKF... Searching the city database file for: BIKF ... Date:1100Z 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 -62 SFC 988 52 5.2 -0.8 65 6.0 2.6 75 12 279.3 279.9 276.4 289.4 3.65 2 925 573 2.4 -1.8 74 4.2 0.6 95 34 281.8 282.4 277.6 291.9 3.62 3 854 1214 -1.7 -1.7 100 0.0 -1.7 128 46 284.0 284.7 279.1 295.1 3.95 4 850 1251 -1.7 -1.7 100 0.0 -1.7 130 47 284.4 285.1 279.4 295.6 3.97 5 808 1653 -3.3 -7.0 76 3.7 -4.7 130 42 286.8 287.3 279.0 294.9 2.80 6 771 2022 -5.9 -6.0 99 0.1 -6.0 130 37 287.9 288.4 280.0 297.1 3.16 7 760 2135 -6.1 -10.3 72 4.2 -7.5 130 35 288.9 289.3 279.4 295.6 2.29 8 700 2773 -10.5 -10.5 100 0.0 -10.5 130 27 290.9 291.3 280.5 298.1 2.45 9 699 2784 -10.5 -10.5 100 0.0 -10.5 130 27 291.0 291.4 280.6 298.3 2.46 10 635 3517 -15.9 -15.9 100 0.0 -15.9 123 26 292.9 293.2 280.6 298.2 1.74 11 615 3759 -16.3 -21.0 67 4.7 -17.4 120 26 295.2 295.4 280.8 298.8 1.16 12 571 4313 -21.5 -24.0 80 2.5 -22.0 115 25 295.4 295.6 280.7 298.4 0.96 13 500 5280 -28.5 -34.5 56 6.0 -29.2 105 24 298.3 298.4 281.2 299.7 0.41 14 474 5659 -31.5 -42.5 33 11.0 -32.4 111 24 299.2 299.2 281.3 299.8 0.19 15 406 6729 -41.7 -44.2 77 2.5 -41.8 128 26 299.5 299.5 281.4 300.2 0.19 16 400 6830 -42.5 -45.1 76 2.6 -42.6 130 26 299.8 299.8 281.5 300.4 0.17 17 366 7421 -47.7 -51.8 63 4.1 -47.9 138 27 300.5 300.6 281.7 300.9 0.09 18 322 8255 -52.7 -57.7 55 5.0 -52.8 149 28 304.8 304.8 283.4 305.0 0.05 19 317 8355 -52.9 -57.1 60 4.2 -53.0 150 28 305.9 305.9 283.8 306.1 0.05 20 306 8583 -52.5 -64.5 22 12.0 -52.7 153 28 309.6 309.6 285.2 309.7 0.02 21 300 8710 -53.3 -65.3 22 12.0 -53.5 155 28 310.2 310.2 285.4 310.3 0.02 22 264 9525 -57.1 -69.1 20 12.0 -57.2 170 33 316.2 316.2 287.5 316.3 0.01 23 250 9870 -55.7 -73.7 9 18.0 -55.9 170 36 323.3 323.3 289.8 323.3 0.01 24 232 10352 -51.7 -77.7 3 26.0 -52.1 173 34 336.3 336.3 293.4 336.3 0.00 25 214 10874 -54.7 -79.7 3 25.0 -54.9 177 32 339.5 339.5 294.2 339.5 0.00 26 200 11310 -53.5 -81.5 2 28.0 -53.8 180 30 348.0 348.0 296.2 348.1 0.00 27 195 11472 -52.7 -80.7 2 28.0 -53.1 181 30 351.9 351.9 297.0 351.9 0.00 28 150 13150 -54.7 -83.7 2 29.0 -55.1 195 35 375.8 375.8 301.6 375.8 0.00 29 107 15294 -58.9 -85.9 2 27.0 -59.2 232 35 406.0 406.0 306.0 406.0 0.00 30 100 15720 -58.1 -86.1 2 28.0 -58.5 240 35 415.5 415.5 307.2 415.5 0.00 31 70 17960 -60.5 -87.5 2 27.0 -60.9 245 41 455.0 455.0 311.3 455.0 0.00 32 66 18324 -61.3 -88.3 2 27.0 -61.7 245 42 460.9 460.9 311.8 460.9 0.00 33 53 19687 -58.9 -87.9 1 29.0 -59.5 245 44 496.3 496.3 314.7 496.4 0.00 34 50 20050 -60.5 -88.5 1 28.0 -61.0 245 45 500.9 500.9 315.0 500.9 0.00 35 30 23200 -65.1 -91.1 2 26.0 -65.6 265 46 567.2 567.2 319.0 567.2 0.00 36 24 24549 -68.9 -91.9 2 23.0 -69.3 268 61 593.5 593.5 320.3 593.5 0.00 37 20 25640 -69.1 -92.1 2 23.0 -69.5 270 74 624.7 624.7 321.7 624.7 0.00 38 14 27755 -70.9 -93.9 2 23.0 -71.3 275 92 685.6 685.6 324.0 685.7 0.00 39 13 28194 -69.7 -93.7 2 24.0 -70.3 276 96 704.5 704.5 324.6 704.5 0.00 40 10 29730 -75.9 -96.9 2 21.0 -76.2 280 109 736.2 736.2 325.6 736.3 0.00 41 8.2 30884 -73.3 -95.3 2 22.0 -73.9 789.5 789.5 327.0 789.5 0.00 TRP 264 9525 -57.1 -69.1 20 12.0 -57.2 170 33 316.2 316.2 287.5 316.3 0.01 WND Sounding variables and indices 1000-500 mb thick: 5342.00 m Freezing level: 883.44 mb = 948.00 m = 3110.20 ft Wetbulb zero: 906.18 mb = 737.88 m = 2420.85 ft Precipitable water: 0.49 inches Sfc-500 mean rel hum: 81.90 % Est. max temperature: 10.92 C = 51.65 F Sfc-Lift cond lev (LCL): 900.73 mb = 786.28 m = 2579.62 ft T: 1.04 C 700-500 lapse rate: 7.18 C/km ThetaE index: 1.43 C Layer 760.0- 700.0 mb Conv cond level (CCL): 804.39 mb = 1688.33 m = 5539.06 ft Mean mixing ratio: 3.66 g/kg Conv temperature: 12.78 C = 55.00 F Cap Strength: 6.00 C Lifted Index: 6.64 C Risk: None Lifted Index @300 mb: 13.33 C Lifted Index @700 mb: 4.13 C Showalter Index: 3.59 C Risk: None Total Totals Index: 53.60 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.80 C Cross Totals Index: 26.80 C K Index: 25.10 Risk: 40-60 % chance of thunderstorms Sweat Index: 210.00 Risk: None Energy Index: 0.83 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 12.71 J/kg Max Up Vert Vel: 5.04 m/s Conv Inhibition (B-): 54330.46 J/kg Cap Strength: 6.52 C Lift Cond Lev (LCL): 875.55 mb = 1013.70 m = 3325.73 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 149 at 22 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 ---------------------------------------------------------- 0 988 52 75 12 -11.6 -3.1 | 0 22 -0.1 -22.1 1 925 573 95 34 -33.9 3.0 | 54 28 -22.4 -16.1 2 850 1251 130 47 -36.0 30.2 | 114 27 -24.6 11.2 3 700 2773 130 27 -20.7 17.4 | 80 9 -9.2 -1.7 4 500 5280 105 24 -23.2 6.2 | 42 17 -11.7 -12.8 5 400 6830 130 26 -19.9 16.7 | 75 9 -8.5 -2.3 6 300 8710 155 28 -11.8 25.4 | 177 6 -0.4 6.3 7 264 9525 170 33 -5.7 32.5 | 203 15 5.7 13.5 8 250 9870 170 36 -6.3 35.5 | 198 17 5.2 16.4 9 200 11310 180 30 0.0 30.0 | 226 16 11.5 11.0 10 150 13150 195 35 9.1 33.8 | 234 25 20.5 14.8 11 100 15720 240 35 30.3 17.5 | 272 42 41.8 -1.5 12 70 17960 245 41 37.2 17.3 | 272 49 48.6 -1.7 13 50 20050 245 45 40.8 19.0 | 270 52 52.2 -0.0 14 30 23200 265 46 45.8 4.0 | 285 59 57.3 -15.0 15 20 25640 270 74 74.0 -0.0 | 283 88 85.5 -19.0 16 10 29730 280 109 107.3 -18.9 | 288 125 118.8 -38.0 Wind Parameters Mean winds (0-6000m): 119.0 at 29.6 knts Storm direction: 149.0 at 22.2 knts Shear (0-3000m) pos: 6.4 neg: 2.8 tot: 9.2 10-3/s Storm rel Dir Shear (0-3000m): 73.1 deg Storm rel helicity (0-3000m) pos: 340.4 neg: -40.9 tot: 299.5 m^2/s^2 ave: 99.8 10^-3 m/s^2 rel: 0.56 Storm rel vorticity (0-3000m) horiz: 12.4 stream: 7.0 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.43 Bulk Shear: 29.44 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 90 23 30 22| 22.8 0.0 22.8|139.0 0.0 139.0 278.0 0.97| 23.2 22.5 1000 101 30 54 23| 18.4 0.0 18.4|278.3 0.0 278.3 278.3 0.98| 21.8 21.5 1500 113 35 76 22| 12.9 0.0 12.9|340.4 -7.5 332.9 221.9 0.89| 19.0 17.0 2000 118 36 84 21| 9.6 1.7 11.3|340.4 -20.1 320.3 160.2 0.76| 15.9 12.1 2500 120 36 87 19| 7.7 2.7 10.4|340.4 -32.6 307.8 123.1 0.64| 14.1 9.0 3000 122 34 87 18| 6.4 2.8 9.2|340.4 -40.9 299.5 99.8 0.56| 12.4 7.0 4000 122 32 83 16| 4.8 2.5 7.3|340.4 -51.6 288.8 72.2 0.48| 9.9 4.8 5000 120 31 77 15| 3.9 2.3 6.2|340.4 -63.9 276.5 55.3 0.42| 8.4 3.5 6000 119 30 72 15| 3.5 1.9 5.4|353.4 -66.6 286.8 47.8 0.42| 7.5 3.2 Wrote GIF file: /home/apache/climate/data/raob//BIKF/skewt/BIKF.skewt.20251209.11.gif