UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042823.upa.cvt Date: 2300Z 28 APR 25 Searching for BIKF... Searching the city database file for: BIKF ... Date:2300Z 28 APR 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 ------------------------------------------------------------------------------- SFC 1008 52 7.0 4.5 84 2.5 5.8 150 3 279.5 280.4 278.6 293.9 5.24 1 1000 108 6.8 2.8 76 4.0 4.9 155 6 280.0 280.7 278.1 292.9 4.68 2 925 743 1.6 -0.6 85 2.2 0.7 165 7 280.9 281.6 277.6 292.0 3.95 3 871 1224 -2.5 -2.5 100 0.0 -2.5 183 8 281.6 282.2 277.6 291.8 3.65 4 863 1297 -1.9 -3.5 89 1.6 -2.6 186 8 282.9 283.5 277.9 292.6 3.42 5 850 1418 -2.5 -4.2 88 1.7 -3.1 190 8 283.5 284.1 278.1 292.9 3.29 6 739 2513 -9.7 -12.7 79 3.0 -10.6 230 7 287.3 287.6 278.2 293.0 1.95 7 700 2930 -11.9 -19.9 51 8.0 -13.8 245 7 289.3 289.5 278.0 292.8 1.12 8 689 3051 -12.9 -21.9 47 9.0 -14.9 248 7 289.5 289.7 277.9 292.5 0.96 9 644 3562 -16.9 -21.9 65 5.0 -18.0 260 8 290.6 290.8 278.5 293.8 1.03 10 641 3597 -16.9 -27.9 38 11.0 -18.8 261 8 291.0 291.1 278.1 292.9 0.60 11 574 4415 -23.5 -29.5 58 6.0 -24.4 280 9 292.6 292.7 278.9 294.5 0.58 12 514 5213 -29.1 -46.1 18 17.0 -30.3 300 10 295.2 295.2 279.4 295.6 0.12 13 500 5410 -30.7 -45.7 22 15.0 -31.7 305 10 295.6 295.6 279.6 296.1 0.13 14 414 6725 -39.3 -54.3 19 15.0 -39.9 309 22 300.9 300.9 281.8 301.1 0.06 15 400 6960 -41.1 -55.1 21 14.0 -41.6 310 24 301.6 301.6 282.1 301.8 0.05 16 382 7271 -43.3 -55.3 25 12.0 -43.7 310 28 302.7 302.7 282.5 302.9 0.06 17 337 8110 -46.3 -63.3 13 17.0 -46.7 310 38 309.6 309.6 285.2 309.7 0.02 18 325 8350 -47.1 -65.1 11 18.0 -47.5 310 41 311.7 311.8 285.9 311.8 0.02 19 300 8880 -47.1 -71.1 5 24.0 -47.6 300 34 319.0 319.0 288.4 319.0 0.01 20 265 9704 -46.7 -77.7 2 31.0 -47.2 283 29 331.1 331.1 292.0 331.1 0.00 21 250 10090 -48.3 -79.3 2 31.0 -48.8 275 26 334.3 334.3 292.9 334.3 0.00 22 200 11560 -47.1 -81.1 1 34.0 -47.8 255 22 358.2 358.2 298.4 358.2 0.00 23 150 13460 -48.5 -83.5 1 35.0 -49.3 240 19 386.5 386.5 303.3 386.5 0.00 24 100 16110 -49.7 -84.7 1 35.0 -50.7 220 16 431.7 431.7 309.0 431.7 0.00 25 70 18430 -51.7 -85.7 1 34.0 -52.8 245 14 473.8 473.8 313.0 473.8 0.00 26 50 20610 -52.9 -86.9 1 34.0 -54.2 235 4 518.8 518.8 316.2 518.8 0.00 27 43 21584 -53.3 -87.3 1 34.0 -54.7 186 5 540.7 540.7 317.6 540.7 0.00 28 30 23910 -52.5 -86.5 1 34.0 -54.5 70 9 601.5 601.5 320.7 601.6 0.01 29 20 26530 -50.5 -87.5 0 37.0 -53.8 30 16 681.6 681.6 323.8 681.7 0.01 30 15 28410 -49.5 -86.5 1 37.0 -53.9 743.4 743.4 325.7 743.5 0.01 TRP 325 8350 -47.1 -65.1 11 18.0 -47.5 310 41 311.7 311.8 285.9 311.8 0.02 WND Sounding variables and indices 1000-500 mb thick: 5302.00 m Freezing level: 903.93 mb = 930.74 m = 3053.56 ft Wetbulb zero: 913.66 mb = 841.63 m = 2761.22 ft Precipitable water: 0.45 inches Sfc-500 mean rel hum: 63.74 % Est. max temperature: 10.65 C = 51.17 F Sfc-Lift cond lev (LCL): 970.12 mb = 355.07 m = 1164.91 ft T: 4.78 C 700-500 lapse rate: 7.58 C/km ThetaE index: 2.07 C Layer 1000.0- 863.0 mb Conv cond level (CCL): 906.65 mb = 903.27 m = 2963.43 ft Mean mixing ratio: 4.29 g/kg Conv temperature: 8.64 C = 47.56 F Cap Strength: 3.58 C Lifted Index: 3.73 C Risk: None Lifted Index @300 mb: 18.86 C Lifted Index @700 mb: 2.14 C Showalter Index: 3.38 C Risk: None Total Totals Index: 54.70 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.20 C Cross Totals Index: 26.50 C K Index: 16.00 Risk: < 20 % chance of thunderstorms Sweat Index: 140.00 Risk: None Energy Index: 0.65 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.19 J/kg Max Up Vert Vel: 2.53 m/s Conv Inhibition (B-): 3.83 J/kg Cap Strength: 3.67 C Lift Cond Lev (LCL): 915.58 mb = 824.82 m = 2706.08 ft Lev Free Conv (LFC): 880.58 mb = 1136.54 m = 3728.78 ft Equ Level (EL): 870.58 mb = 1227.86 m = 4028.37 ft B at Equ Level: 2.90 J/kg Max Parcel Lev (MPL): 850.58 mb = 1412.54 m = 4634.25 ft Wind level data Storm motion: 285 at 6 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 1008 52 150 3 -1.5 2.6 | 119 9 -7.6 4.2 1 1000 108 155 6 -2.5 5.4 | 129 11 -8.6 7.1 2 925 743 165 7 -1.8 6.8 | 137 12 -7.9 8.4 3 850 1418 190 8 1.4 7.9 | 154 11 -4.7 9.5 4 700 2930 245 7 6.3 3.0 | 183 5 0.3 4.6 5 500 5410 305 10 8.2 -5.7 | 333 5 2.1 -4.1 6 400 6960 310 24 18.4 -15.4 | 318 18 12.3 -13.8 7 325 8350 310 41 31.4 -26.4 | 314 35 25.3 -24.7 8 300 8880 300 34 29.4 -17.0 | 303 28 23.4 -15.4 9 250 10090 275 26 25.9 -2.3 | 272 20 19.8 -0.6 10 200 11560 255 22 21.3 5.7 | 244 17 15.2 7.3 11 150 13460 240 19 16.5 9.5 | 223 15 10.4 11.1 12 100 16110 220 16 10.3 12.3 | 197 14 4.2 13.9 13 70 18430 245 14 12.7 5.9 | 221 10 6.6 7.5 14 50 20610 235 4 3.3 2.3 | 144 5 -2.8 3.9 15 30 23910 70 9 -8.5 -3.1 | 84 15 -14.5 -1.5 16 20 26530 30 16 -8.0 -13.9 | 49 19 -14.1 -12.2 Wind Parameters Mean winds (0-6000m): 254.9 at 8.4 knts Storm direction: 284.9 at 6.3 knts Shear (0-3000m) pos: 1.4 neg: 0.0 tot: 1.4 10-3/s Storm rel Dir Shear (0-3000m): 68.1 deg Storm rel helicity (0-3000m) pos: 27.4 neg: 0.0 tot: 27.4 m^2/s^2 ave: 9.1 10^-3 m/s^2 rel: 0.69 Storm rel vorticity (0-3000m) horiz: 2.7 stream: 1.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.20 Bulk Shear: 15.84 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 ------------------------------------------------------------------------------- 500 158 6 131 11| 3.9 0.0 3.9| 7.5 0.0 7.5 15.0 0.68| 4.2 2.8 1000 164 7 135 11| 2.5 0.0 2.5| 13.3 0.0 13.3 13.3 0.78| 3.1 2.4 1500 172 7 140 11| 2.1 0.0 2.1| 19.9 0.0 19.9 13.2 0.81| 3.0 2.4 2000 180 7 146 11| 1.7 0.0 1.7| 23.7 0.0 23.7 11.9 0.77| 2.9 2.2 2500 188 7 150 10| 1.5 0.0 1.5| 26.1 0.0 26.1 10.4 0.73| 2.8 2.0 3000 196 7 154 9| 1.4 0.0 1.4| 27.4 0.0 27.4 9.1 0.69| 2.7 1.9 4000 214 7 165 8| 1.3 0.0 1.3| 30.0 0.0 30.0 7.5 0.72| 2.5 1.8 5000 233 8 180 6| 1.3 0.0 1.3| 32.8 0.0 32.8 6.6 0.76| 2.4 1.8 6000 255 8 208 4| 1.6 0.0 1.6| 33.9 -2.4 31.5 5.2 0.57| 2.6 1.5 Wrote GIF file: /home/apache/climate/data/raob//BIKF/skewt/BIKF.skewt.20250428.23.gif