UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041812.upa.cvt Date: 1200Z 18 APR 25 Searching for U0744... Searching the city database file for: U0744 ... Date:1200Z 18 APR 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 1013 16 -7.7 -12.7 67 5.0 -8.9 180 1 264.5 264.7 263.4 268.3 1.42 1 1000 117 -6.9 -16.9 45 10.0 -9.2 150 1 266.2 266.4 264.0 269.1 1.02 2 988 211 -7.3 -16.3 49 9.0 -9.4 124 2 266.8 266.9 264.5 269.8 1.08 3 925 720 -11.5 -18.5 56 7.0 -12.9 340 5 267.5 267.7 264.8 270.2 0.96 4 874 1152 -14.5 -20.5 60 6.0 -15.6 280 4 268.8 268.9 265.5 271.2 0.86 5 850 1364 -13.5 -24.5 39 11.0 -15.4 250 3 272.0 272.1 267.3 273.8 0.62 6 806 1768 -14.3 -32.3 20 18.0 -16.8 265 5 275.3 275.4 268.8 276.3 0.32 7 759 2223 -14.5 -37.5 12 23.0 -17.3 282 6 279.9 279.9 271.4 280.5 0.20 8 700 2833 -16.9 -38.9 13 22.0 -19.5 305 9 283.8 283.8 273.6 284.4 0.19 9 600 3975 -22.5 -44.5 12 22.0 -24.5 305 25 290.1 290.1 276.9 290.5 0.12 10 586 4147 -23.5 -42.5 16 19.0 -25.3 305 27 290.9 290.9 277.3 291.4 0.15 11 508 5177 -29.5 -37.5 46 8.0 -30.3 305 42 295.7 295.8 279.9 296.7 0.30 12 500 5290 -30.1 -39.1 41 9.0 -30.9 305 44 296.3 296.4 280.1 297.2 0.26 13 488 5462 -30.9 -42.9 30 12.0 -31.9 306 47 297.4 297.5 280.5 298.0 0.18 14 434 6281 -37.1 -53.1 17 16.0 -37.8 308 64 299.7 299.7 281.3 299.9 0.06 15 405 6755 -39.5 -53.5 21 14.0 -40.1 310 73 302.6 302.6 282.5 302.8 0.06 16 400 6840 -40.1 -54.1 21 14.0 -40.6 310 75 302.9 302.9 282.6 303.1 0.06 17 347 7799 -45.5 -55.5 32 10.0 -45.8 310 103 308.1 308.1 284.7 308.4 0.06 18 339 7954 -45.7 -55.7 31 10.0 -46.0 310 107 309.9 309.9 285.4 310.1 0.06 19 327 8194 -47.1 -58.0 28 10.9 -47.4 310 114 311.2 311.2 285.8 311.4 0.05 20 300 8760 -50.5 -63.5 20 13.0 -50.8 310 104 314.2 314.2 286.8 314.3 0.02 21 294 8892 -51.1 -64.1 20 13.0 -51.3 310 97 315.1 315.1 287.2 315.2 0.02 22 250 9950 -49.3 -65.3 14 16.0 -49.7 315 60 332.8 332.8 292.5 332.9 0.02 23 220 10791 -47.5 -66.5 10 19.0 -48.0 318 53 347.9 347.9 296.2 348.0 0.02 24 200 11420 -48.1 -69.1 7 21.0 -48.7 320 48 356.6 356.6 298.0 356.7 0.02 25 150 13310 -49.5 -73.5 4 24.0 -50.1 325 42 384.8 384.8 303.0 384.8 0.01 26 140 13761 -49.5 -73.5 4 24.0 -50.2 327 41 392.4 392.4 304.2 392.5 0.01 27 100 15960 -49.9 -73.9 4 24.0 -50.8 335 35 431.3 431.3 309.0 431.4 0.02 28 85 17021 -50.5 -74.5 4 24.0 -51.5 450.6 450.6 310.9 450.7 0.02 TRP 294 8892 -51.1 -64.1 20 13.0 -51.3 310 97 315.1 315.1 287.2 315.2 0.02 WND 327 8194 -47.1 -58.0 28 10.9 -47.4 310 114 311.2 311.2 285.8 311.4 0.05 Sounding variables and indices 1000-500 mb thick: 5173.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 28.75 % Est. max temperature: -1.89 C = 28.59 F Sfc-Lift cond lev (LCL): 935.21 mb = 635.19 m = 2083.94 ft T: -10.80 C 700-500 lapse rate: 5.37 C/km ThetaE index: 0.00 C Layer 1013.0- 0.0 mb Conv cond level (CCL): 598.36 mb = 3994.66 m = 13105.69 ft Mean mixing ratio: 1.04 g/kg Conv temperature: 18.10 C = 64.58 F Cap Strength: 21.52 C Lifted Index: 21.91 C Risk: None Lifted Index @300 mb: 31.45 C Lifted Index @700 mb: 13.72 C Showalter Index: 18.69 C Risk: None Total Totals Index: 22.20 C Risk: None Vertical Totals Index: 16.60 C Cross Totals Index: 5.60 C K Index: -29.90 Risk: None Sweat Index: 50.00 Risk: None Energy Index: 4.96 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 7.28 J/kg Max Up Vert Vel: 3.81 m/s Conv Inhibition (B-): 28548.25 J/kg Cap Strength: 21.60 C Lift Cond Lev (LCL): 846.77 mb = 1392.89 m = 4569.80 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 335 at 15 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 1013 16 180 1 0.0 1.0 | 156 16 -6.2 14.3 1 1000 117 150 1 -0.5 0.9 | 155 16 -6.7 14.1 2 925 720 340 5 1.7 -4.7 | 152 10 -4.5 8.6 3 850 1364 250 3 2.8 1.0 | 167 15 -3.4 14.3 4 700 2833 305 9 7.4 -5.2 | 188 8 1.2 8.1 5 500 5290 305 44 36.0 -25.2 | 292 32 29.8 -12.0 6 400 6840 310 75 57.5 -48.2 | 304 62 51.2 -34.9 7 327 8194 310 114 87.3 -73.3 | 306 101 81.1 -60.0 8 300 8760 310 104 79.7 -66.8 | 306 91 73.5 -53.6 9 294 8892 310 97 74.3 -62.4 | 306 84 68.1 -49.1 10 250 9950 315 60 42.4 -42.4 | 309 46 36.2 -29.2 11 200 11420 320 48 30.9 -36.8 | 314 34 24.6 -23.5 12 150 13310 325 42 24.1 -34.4 | 320 28 17.9 -21.1 13 100 15960 335 35 14.8 -31.7 | 335 20 8.6 -18.5 Wind Parameters Mean winds (0-6000m): 304.9 at 19.5 knts Storm direction: 334.9 at 14.6 knts Shear (0-3000m) pos: 1.7 neg: 0.6 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 50.1 deg Storm rel helicity (0-3000m) pos: 34.3 neg: -18.1 tot: 16.2 m^2/s^2 ave: 5.4 10^-3 m/s^2 rel: 0.28 Storm rel vorticity (0-3000m) horiz: 4.7 stream: 1.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.13 Bulk Shear: 55.73 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 61 2 147 15| 0.0 4.6 4.6| 0.0 -17.2 -17.2 -34.5 -0.73| 5.9 -4.3 1000 331 3 156 11| 0.0 2.4 2.4| 13.3 -17.2 -4.0 -4.0 0.04| 7.0 0.3 1500 313 3 161 12| 0.0 1.2 1.2| 16.0 -18.1 -2.1 -1.4 0.06| 5.9 0.4 2000 295 4 166 12| 0.6 0.9 1.6| 23.2 -18.1 5.1 2.6 0.16| 5.1 0.8 2500 294 4 169 12| 1.1 0.7 1.8| 27.9 -18.1 9.8 3.9 0.20| 4.7 0.9 3000 300 5 170 11| 1.7 0.6 2.3| 34.3 -18.1 16.2 5.4 0.28| 4.7 1.3 4000 303 8 185 9| 1.2 2.2 3.5| 61.8 -18.1 43.8 10.9 0.45| 5.4 2.4 5000 304 13 221 8| 1.0 3.2 4.2| 89.4 -18.1 71.3 14.3 0.42| 5.8 2.4 6000 305 20 258 10| 2.4 2.7 5.1|145.5 -18.1 127.4 21.2 0.39| 6.4 2.5 Wrote GIF file: /home/apache/climate/data/raob//U0744/skewt/U0744.skewt.20250418.12.gif