UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122311.upa.cvt Date: 1100Z 23 DEC 25 Searching for BGSC... Searching the city database file for: BGSC ... Date:1100Z 23 DEC 25 Station: BGSC WMO ident: 4339 Latitude: 70.48 Longitude: -21.95 Elevation: 69.00 ------------------------------------------------------------------------------- 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 991 69 -2.5 -2.9 97 0.4 -2.7 0 0 271.4 271.9 271.0 279.8 3.11 1 962 305 0.2 0.2 100 0.0 0.2 33 4 276.4 277.1 275.3 287.4 4.03 2 893 899 -0.7 -2.3 89 1.6 -1.4 115 14 281.4 282.0 277.4 291.5 3.61 3 880 1016 -0.3 -2.5 85 2.2 -1.2 132 16 283.0 283.6 278.2 293.2 3.61 4 850 1292 -2.3 -4.4 85 2.1 -3.1 170 21 283.7 284.3 278.1 293.0 3.24 5 767 2100 -7.7 -9.8 85 2.1 -8.4 173 24 286.4 286.8 278.3 293.3 2.37 6 745 2326 -9.5 -10.9 90 1.4 -9.9 173 25 286.8 287.2 278.3 293.4 2.23 7 700 2805 -12.3 -13.7 89 1.4 -12.7 175 27 288.9 289.2 278.9 294.5 1.89 8 636 3531 -16.1 -18.5 82 2.4 -16.7 172 25 292.6 292.8 280.0 296.9 1.40 9 630 3602 -16.7 -19.1 82 2.4 -17.3 172 25 292.7 292.9 279.9 296.8 1.34 10 581 4204 -21.3 -23.2 85 1.9 -21.7 169 24 294.2 294.3 280.1 297.4 1.02 11 500 5290 -30.1 -32.9 76 2.8 -30.4 165 21 296.3 296.4 280.4 297.9 0.48 12 400 6840 -42.7 -46.2 68 3.5 -42.9 160 35 299.5 299.5 281.3 300.0 0.15 13 340 7919 -50.9 -53.7 72 2.8 -51.0 160 49 302.6 302.6 282.5 302.9 0.08 14 327 8172 -52.7 -56.5 63 3.8 -52.8 160 52 303.5 303.5 282.9 303.7 0.06 15 300 8730 -52.1 -64.1 22 12.0 -52.3 170 46 311.9 311.9 286.1 312.0 0.02 16 294 8860 -51.5 -65.5 17 14.0 -51.7 170 45 314.6 314.6 286.9 314.6 0.02 17 250 9900 -53.9 -69.9 12 16.0 -54.1 170 40 325.9 325.9 290.6 326.0 0.01 18 217 10813 -53.1 -76.1 4 23.0 -53.4 180 43 340.6 340.6 294.5 340.7 0.01 19 200 11340 -53.1 -81.1 2 28.0 -53.4 185 44 348.7 348.7 296.3 348.7 0.00 20 193 11569 -53.9 -83.9 1 30.0 -54.2 188 44 351.0 351.0 296.8 351.0 0.00 21 185 11842 -50.9 -82.9 1 32.0 -51.4 192 45 360.1 360.1 298.7 360.1 0.00 22 150 13200 -52.5 -84.5 1 32.0 -53.0 210 46 379.6 379.6 302.2 379.6 0.00 23 134 13922 -55.9 -86.9 1 31.0 -56.3 214 43 386.0 386.0 303.2 386.0 0.00 24 125 14368 -52.7 -84.7 1 32.0 -53.2 217 42 399.6 399.6 305.2 399.6 0.00 25 100 15790 -57.9 -87.9 1 30.0 -58.3 225 36 415.9 415.9 307.2 415.9 0.00 26 70 18000 -62.3 -91.3 1 29.0 -62.6 240 46 451.1 451.1 311.0 451.1 0.00 27 50 20050 -67.3 -94.3 1 27.0 -67.5 255 69 484.9 484.9 313.8 484.9 0.00 28 30 23030 -77.9 -101.9 1 24.0 -78.0 270 69 532.3 532.3 317.1 532.3 0.00 TRP 327 8172 -52.7 -56.5 63 3.8 -52.8 160 52 303.5 303.5 282.9 303.7 0.06 WND Sounding variables and indices 1000-500 mb thick: 5221.00 m Freezing level: Surface below freezing Freezing level: 964.15 mb = 287.74 m = 944.02 ft Freezing level: 946.67 mb = 437.24 m = 1434.51 ft Wetbulb zero: Below ground Precipitable water: 0.47 inches Sfc-500 mean rel hum: 86.01 % Est. max temperature: 10.13 C = 50.23 F Sfc-Lift cond lev (LCL): 984.66 mb = 120.07 m = 393.94 ft T: -1.92 C 700-500 lapse rate: 7.16 C/km ThetaE index: 0.25 C Layer 850.0- 767.0 mb Conv cond level (CCL): 845.79 mb = 1331.09 m = 4367.05 ft Mean mixing ratio: 3.75 g/kg Conv temperature: 9.99 C = 49.98 F Cap Strength: 7.10 C Lifted Index: 7.73 C Risk: None Lifted Index @300 mb: 17.08 C Lifted Index @700 mb: 4.73 C Showalter Index: 3.92 C Risk: None Total Totals Index: 53.50 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.80 C Cross Totals Index: 25.70 C K Index: 22.00 Risk: 20-40 % chance of thunderstorms Sweat Index: 153.00 Risk: None Energy Index: 1.00 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 31.58 J/kg Max Up Vert Vel: 7.95 m/s Conv Inhibition (B-): 40635.23 J/kg Cap Strength: 7.70 C Lift Cond Lev (LCL): 930.24 mb = 573.15 m = 1880.39 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 200 at 16 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 ---------------------------------------------------------- 0 991 69 0 0 -0.0 -0.0 | 20 16 -5.5 -15.1 1 850 1292 170 21 -3.6 20.7 | 121 11 -9.2 5.6 2 700 2805 175 27 -2.4 26.9 | 146 14 -7.9 11.8 3 500 5290 165 21 -5.4 20.3 | 115 12 -11.0 5.2 4 400 6840 160 35 -12.0 32.9 | 135 25 -17.5 17.8 5 327 8172 160 52 -17.8 48.9 | 145 41 -23.3 33.8 6 300 8730 170 46 -8.0 45.3 | 156 33 -13.5 30.2 7 250 9900 170 40 -6.9 39.4 | 153 27 -12.5 24.3 8 200 11340 185 44 3.8 43.8 | 177 29 -1.7 28.7 9 150 13200 210 46 23.0 39.8 | 215 30 17.5 24.7 10 100 15790 225 36 25.5 25.5 | 243 22 19.9 10.3 11 70 18000 240 46 39.8 23.0 | 257 35 34.3 7.9 12 50 20050 255 69 66.6 17.9 | 267 61 61.1 2.8 13 30 23030 270 69 69.0 -0.0 | 283 65 63.5 -15.1 Wind Parameters Mean winds (0-6000m): 170.1 at 21.4 knts Storm direction: 200.1 at 16.1 knts Shear (0-3000m) pos: 4.5 neg: 0.1 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 123.1 deg Storm rel helicity (0-3000m) pos: 176.1 neg: -3.1 tot: 173.0 m^2/s^2 ave: 57.7 10^-3 m/s^2 rel: 0.79 Storm rel vorticity (0-3000m) horiz: 7.9 stream: 6.3 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.72 Bulk Shear: 43.96 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 ------------------------------------------------------------------------------- 500 199 4 20 12| 8.8 0.0 8.8| 36.0 -0.8 35.2 70.5 0.61| 10.6 6.4 1000 177 8 42 9| 8.8 0.0 8.8|126.6 -0.8 125.8 125.8 0.81| 14.5 11.7 1500 170 12 70 8| 7.6 0.0 7.6|162.3 -0.8 161.5 107.7 0.82| 13.8 11.3 2000 171 15 89 8| 6.2 0.0 6.2|167.9 -0.8 167.1 83.5 0.82| 10.9 8.9 2500 172 17 103 8| 5.4 0.0 5.4|173.7 -0.8 172.9 69.2 0.82| 9.1 7.5 3000 172 19 113 9| 4.5 0.1 4.5|176.1 -3.1 173.0 57.7 0.79| 7.9 6.3 4000 172 20 122 10| 3.4 0.4 3.7|176.1 -13.1 163.0 40.8 0.69| 6.3 4.3 5000 171 21 123 10| 2.7 0.6 3.3|176.1 -22.4 153.7 30.7 0.60| 5.3 3.2 6000 170 21 123 11| 2.2 0.5 2.7|190.3 -24.2 166.1 27.7 0.57| 5.1 2.9 Wrote GIF file: /home/apache/climate/data/raob//BGSC/skewt/BGSC.skewt.20251223.11.gif