UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122300.upa.cvt Date: 0000Z 23 DEC 25 Searching for U0744... Searching the city database file for: U0744 ... Date:0000Z 23 DEC 25 Station: U0744 WMO ident: 20744 Latitude: 72.37 Longitude: 52.73 ------------------------------------------------------------------------------- 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 1021 19 -16.5 -20.6 71 4.1 -17.1 160 11 255.1 255.2 254.7 257.1 0.73 1 1012 86 -14.5 -20.5 60 6.0 -15.5 175 11 257.8 257.9 256.9 259.8 0.74 2 1000 176 -14.3 -20.3 60 6.0 -15.3 195 11 258.9 259.0 257.8 260.9 0.76 3 989 260 -14.7 -20.7 60 6.0 -15.7 210 10 259.3 259.4 258.1 261.3 0.74 4 955 524 -14.3 -19.2 66 4.9 -15.2 257 7 262.3 262.4 260.7 264.7 0.88 5 925 765 -15.3 -18.5 76 3.2 -15.9 300 5 263.7 263.8 262.0 266.3 0.96 6 914 855 -15.9 -18.9 78 3.0 -16.4 304 6 264.0 264.1 262.2 266.6 0.94 7 886 1090 -17.5 -20.5 77 3.0 -18.0 313 8 264.7 264.8 262.5 267.0 0.84 8 871 1218 -17.1 -20.2 77 3.1 -17.6 318 9 266.4 266.5 263.8 268.8 0.88 9 850 1401 -17.3 -21.8 68 4.5 -18.1 325 11 268.0 268.2 264.8 270.3 0.79 10 801 1846 -16.7 -27.7 38 11.0 -18.3 342 13 273.3 273.3 267.8 274.7 0.49 11 749 2349 -17.9 -33.9 23 16.0 -19.9 1 15 277.2 277.3 270.0 278.2 0.29 12 736 2479 -18.3 -34.3 23 16.0 -20.3 6 15 278.2 278.2 270.6 279.1 0.28 13 700 2852 -20.3 -32.3 33 12.0 -21.8 20 17 280.0 280.1 271.8 281.1 0.36 14 658 3307 -22.9 -30.9 48 8.0 -23.9 20 20 282.1 282.1 273.1 283.4 0.44 15 652 3374 -22.9 -30.9 48 8.0 -23.9 20 21 282.8 282.9 273.6 284.2 0.45 16 566 4392 -31.9 -40.9 41 9.0 -32.6 20 28 283.9 283.9 273.8 284.5 0.19 17 512 5095 -34.9 -42.9 44 8.0 -35.4 20 34 288.5 288.6 276.2 289.1 0.17 18 500 5260 -36.3 -44.3 43 8.0 -36.8 20 35 288.8 288.8 276.3 289.3 0.15 19 420 6445 -44.9 -52.9 40 8.0 -45.2 28 50 292.5 292.5 278.0 292.8 0.07 20 400 6770 -45.5 -53.5 40 8.0 -45.7 30 54 295.9 295.9 279.6 296.1 0.07 21 355 7561 -49.3 -58.3 34 9.0 -49.5 30 66 301.0 301.0 281.8 301.2 0.04 22 314 8358 -54.5 -63.5 32 9.0 -54.6 30 78 304.5 304.5 283.2 304.6 0.02 23 300 8650 -55.3 -64.3 32 9.0 -55.4 30 83 307.4 307.4 284.4 307.5 0.02 24 287 8932 -56.4 -65.7 30 9.2 -56.5 35 91 309.7 309.7 285.2 309.8 0.02 25 250 9800 -59.9 -69.9 26 10.0 -60.0 35 79 317.0 317.0 287.8 317.1 0.01 26 242 10003 -60.7 -70.7 26 10.0 -60.8 35 77 318.8 318.8 288.3 318.8 0.01 27 200 11190 -61.7 -71.7 25 10.0 -61.8 30 64 335.1 335.1 293.1 335.1 0.01 28 173 12083 -62.3 -72.3 25 10.0 -62.4 30 54 348.3 348.3 296.3 348.3 0.01 29 150 12960 -62.9 -72.9 25 10.0 -63.0 30 44 361.7 361.7 299.1 361.8 0.01 30 129 13886 -64.1 -74.1 24 10.0 -64.2 26 38 375.5 375.5 301.5 375.6 0.01 31 102 15311 -67.9 -78.9 19 11.0 -68.0 20 30 394.3 394.3 304.4 394.3 0.01 32 100 15430 -67.9 -78.9 19 11.0 -68.0 20 29 396.5 396.5 304.8 396.6 0.01 33 83 16546 -69.3 -79.3 22 10.0 -69.4 415.4 415.4 307.2 415.4 0.01 TRP 242 10003 -60.7 -70.7 26 10.0 -60.8 35 77 318.8 318.8 288.3 318.8 0.01 WND 287 8932 -56.4 -65.7 30 9.2 -56.5 35 91 309.7 309.7 285.2 309.8 0.02 Sounding variables and indices 1000-500 mb thick: 5084.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.12 inches Sfc-500 mean rel hum: 48.18 % Est. max temperature: -5.20 C = 22.65 F Sfc-Lift cond lev (LCL): 954.78 mb = 525.77 m = 1724.94 ft T: -14.31 C 700-500 lapse rate: 6.64 C/km ThetaE index: 0.00 C Layer 1021.0-16093824937590953869312.0 mb Conv cond level (CCL): 636.21 mb = 3550.75 m = 11649.31 ft Mean mixing ratio: 0.83 g/kg Conv temperature: 11.57 C = 52.82 F Cap Strength: 21.15 C Lifted Index: 21.22 C Risk: None Lifted Index @300 mb: 31.46 C Lifted Index @700 mb: 16.01 C Showalter Index: 15.36 C Risk: None Total Totals Index: 33.50 C Risk: None Vertical Totals Index: 19.00 C Cross Totals Index: 14.50 C K Index: -14.80 Risk: None Sweat Index: 57.00 Risk: None Energy Index: 4.06 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 24.56 J/kg Max Up Vert Vel: 7.01 m/s Conv Inhibition (B-): 25848.05 J/kg Cap Strength: 21.21 C Lift Cond Lev (LCL): 894.37 mb = 1018.74 m = 3342.30 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 45 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 1021 19 160 11 -3.8 10.3 | 199 23 7.4 21.5 1 1000 176 195 11 2.8 10.6 | 213 26 14.0 21.8 2 925 765 300 5 4.3 -2.5 | 241 18 15.4 8.6 3 850 1401 325 11 6.3 -9.0 | 263 18 17.4 2.1 4 700 2852 20 17 -5.8 -16.0 | 312 7 5.3 -4.8 5 500 5260 20 35 -12.0 -32.9 | 2 22 -0.9 -21.7 6 400 6770 30 54 -27.0 -46.8 | 24 39 -15.9 -35.6 7 300 8650 30 83 -41.5 -71.9 | 27 68 -30.4 -60.7 8 287 8932 35 91 -52.2 -74.5 | 33 76 -41.1 -63.4 9 250 9800 35 79 -45.3 -64.7 | 33 64 -34.2 -53.6 10 242 10003 35 77 -44.2 -63.1 | 32 62 -33.1 -51.9 11 200 11190 30 64 -32.0 -55.4 | 25 49 -20.9 -44.3 12 150 12960 30 44 -22.0 -38.1 | 22 29 -10.9 -27.0 13 100 15430 20 29 -9.9 -27.3 | 356 16 1.2 -16.1 Wind Parameters Mean winds (0-6000m): 14.9 at 21.0 knts Storm direction: 44.9 at 15.7 knts Shear (0-3000m) pos: 4.7 neg: 0.0 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 122.0 deg Storm rel helicity (0-3000m) pos: 182.5 neg: 0.0 tot: 182.5 m^2/s^2 ave: 60.8 10^-3 m/s^2 rel: 0.80 Storm rel vorticity (0-3000m) horiz: 7.7 stream: 6.2 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.20 Bulk Shear: 124.86 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 ------------------------------------------------------------------------------- 500 204 10 217 25| 14.4 0.0 14.4|100.5 0.0 100.5 201.0 0.91| 17.5 15.9 1000 226 8 225 24| 9.2 0.0 9.2|124.7 0.0 124.7 124.7 0.82| 12.7 10.4 1500 276 9 242 22| 7.7 0.0 7.7|148.9 0.0 148.9 99.3 0.85| 10.3 8.7 2000 307 10 254 19| 6.3 0.0 6.3|163.4 0.0 163.4 81.7 0.84| 8.9 7.4 2500 329 11 263 17| 5.3 0.0 5.3|174.6 0.0 174.6 69.8 0.81| 8.2 6.7 3000 347 12 270 14| 4.7 0.0 4.7|182.5 0.0 182.5 60.8 0.80| 7.7 6.2 4000 3 14 286 11| 3.5 1.0 4.5|195.6 0.0 195.6 48.9 0.78| 6.7 5.3 5000 11 17 307 10| 2.8 1.5 4.4|208.8 0.0 208.8 41.8 0.74| 6.1 4.5 6000 15 21 328 11| 3.3 1.3 4.5|250.5 0.0 250.5 41.8 0.70| 6.1 4.3 Wrote GIF file: /home/apache/climate/data/raob//U0744/skewt/U0744.skewt.20251223.00.gif