UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041712.upa.cvt Date: 1200Z 17 APR 25 Searching for U0744... Searching the city database file for: U0744 ... Date:1200Z 17 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 1019 17 -4.5 -7.1 82 2.6 -5.3 15 11 267.2 267.6 266.8 273.1 2.20 1 1009 95 -5.3 -12.3 58 7.0 -7.2 359 9 267.2 267.4 265.5 271.2 1.47 2 1000 165 -5.9 -12.9 58 7.0 -7.7 345 7 267.2 267.5 265.4 271.1 1.41 3 925 770 -11.3 -15.5 71 4.2 -12.2 335 15 267.8 268.0 265.4 271.2 1.23 4 855 1368 -16.5 -19.7 76 3.2 -17.1 316 17 268.4 268.6 265.4 271.1 0.94 5 850 1412 -16.5 -19.6 77 3.1 -17.1 315 17 268.9 269.0 265.7 271.6 0.95 6 846 1447 -16.7 -19.7 78 3.0 -17.3 315 17 269.0 269.2 265.8 271.7 0.95 7 814 1738 -14.7 -24.7 42 10.0 -16.4 316 17 274.1 274.2 268.7 276.0 0.63 8 797 1898 -15.3 -28.3 32 13.0 -17.3 317 18 275.1 275.2 269.0 276.5 0.47 9 700 2869 -19.7 -39.7 15 20.0 -21.7 320 19 280.7 280.7 271.9 281.2 0.17 10 682 3062 -20.1 -42.1 12 22.0 -22.2 321 21 282.3 282.3 272.8 282.8 0.14 11 650 3417 -21.9 -41.9 15 20.0 -23.8 322 24 284.2 284.2 273.8 284.7 0.15 12 500 5300 -33.9 -51.9 15 18.0 -34.8 330 42 291.7 291.7 277.6 291.9 0.06 13 400 6830 -44.3 -56.3 25 12.0 -44.6 335 58 297.4 297.4 280.3 297.6 0.05 14 334 8016 -52.5 -64.5 22 12.0 -52.7 330 66 301.9 301.9 282.2 302.0 0.02 15 332 8055 -52.7 -63.7 25 11.0 -52.9 330 66 302.2 302.2 282.3 302.3 0.02 16 326 8173 -52.6 -63.8 25 11.2 -52.8 330 68 303.9 303.9 283.0 304.0 0.02 17 300 8710 -52.1 -64.1 22 12.0 -52.3 330 60 311.9 311.9 286.1 312.0 0.02 18 297 8775 -52.5 -64.5 22 12.0 -52.7 330 60 312.2 312.2 286.2 312.3 0.02 19 296 8797 -52.3 -64.3 22 12.0 -52.5 330 59 312.8 312.8 286.4 312.9 0.02 20 272 9348 -49.9 -62.9 20 13.0 -50.2 333 56 324.0 324.0 290.0 324.1 0.03 21 252 9848 -50.1 -64.1 18 14.0 -50.4 335 52 330.8 330.8 292.0 330.9 0.03 22 250 9900 -49.5 -63.5 18 14.0 -49.8 335 52 332.5 332.5 292.4 332.6 0.03 23 220 10740 -47.3 -64.3 13 17.0 -47.8 335 47 348.2 348.3 296.3 348.4 0.03 24 200 11370 -47.5 -67.5 8 20.0 -48.1 335 44 357.6 357.6 298.2 357.7 0.02 25 176 12215 -47.5 -69.5 6 22.0 -48.2 333 43 370.9 370.9 300.7 371.0 0.02 26 150 13270 -48.5 -72.5 5 24.0 -49.2 330 42 386.5 386.5 303.3 386.6 0.01 27 131 14159 -48.1 -72.1 5 24.0 -49.0 332 40 402.5 402.5 305.6 402.6 0.02 28 100 15940 -46.7 -70.7 5 24.0 -48.0 335 35 437.5 437.5 309.6 437.6 0.03 29 89 16715 -46.3 -70.3 5 24.0 -47.7 337 35 453.1 453.1 311.1 453.3 0.03 30 76 17758 -49.7 -73.7 4 24.0 -50.9 339 36 466.9 467.0 312.4 467.1 0.02 31 70 18300 -46.9 -70.9 5 24.0 -48.6 340 36 484.1 484.1 313.8 484.3 0.04 32 69 18396 -46.5 -70.5 5 24.0 -48.3 340 36 486.9 486.9 314.0 487.2 0.04 33 68 18493 -46.5 -70.5 5 24.0 -48.3 340 36 488.9 489.0 314.2 489.2 0.04 34 56 19776 -49.3 -73.3 4 24.0 -50.9 337 33 510.5 510.5 315.7 510.7 0.03 35 50 20520 -49.1 -73.1 4 24.0 -50.9 335 31 527.8 527.8 316.8 528.0 0.04 36 39 22142 -49.5 -73.5 4 24.0 -51.6 340 32 565.6 565.6 318.9 565.9 0.05 37 30 23850 -50.7 -73.7 5 23.0 -53.0 345 33 606.4 606.4 320.9 606.9 0.06 38 28 24301 -50.1 -74.1 4 24.0 -52.7 342 35 620.2 620.2 321.5 620.6 0.06 39 23 25578 -53.5 -76.5 4 23.0 -55.7 335 39 646.1 646.1 322.6 646.5 0.05 40 20 26480 -52.9 -75.9 5 23.0 -55.5 330 42 674.3 674.3 323.6 674.8 0.06 41 13 29276 -50.3 -74.3 4 24.0 -54.6 771.7 771.7 326.5 772.8 0.12 TRP 332 8055 -52.7 -63.7 25 11.0 -52.9 330 66 302.2 302.2 282.3 302.3 0.02 WND 326 8173 -52.6 -63.8 25 11.2 -52.8 330 68 303.9 303.9 283.0 304.0 0.02 Sounding variables and indices 1000-500 mb thick: 5135.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 33.44 % Est. max temperature: -3.42 C = 25.85 F Sfc-Lift cond lev (LCL): 977.89 mb = 338.47 m = 1110.45 ft T: -7.45 C 700-500 lapse rate: 5.84 C/km ThetaE index: 1.99 C Layer 1009.0- 925.0 mb Conv cond level (CCL): 876.60 mb = 1178.31 m = 3865.81 ft Mean mixing ratio: 1.38 g/kg Conv temperature: -3.49 C = 25.72 F Cap Strength: 12.30 C Lifted Index: 16.94 C Risk: None Lifted Index @300 mb: 28.80 C Lifted Index @700 mb: 9.75 C Showalter Index: 16.71 C Risk: None Total Totals Index: 31.70 C Risk: None Vertical Totals Index: 17.40 C Cross Totals Index: 14.30 C K Index: -22.20 Risk: None Sweat Index: 76.00 Risk: None Energy Index: 4.36 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.45 J/kg Max Up Vert Vel: 1.70 m/s Conv Inhibition (B-): 69780.75 J/kg Cap Strength: 16.73 C Lift Cond Lev (LCL): 886.76 mb = 1090.80 m = 3578.71 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 357 at 19 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 1019 17 15 11 -2.8 -10.6 | 155 9 -3.9 8.4 1 1000 165 345 7 1.8 -6.8 | 184 12 0.8 12.3 2 925 770 335 15 6.3 -13.6 | 224 8 5.3 5.5 3 850 1412 315 17 12.0 -12.0 | 237 13 11.0 7.1 4 700 2869 320 19 12.2 -14.6 | 248 12 11.2 4.5 5 500 5300 330 42 21.0 -36.4 | 311 26 20.0 -17.3 6 400 6830 335 58 24.5 -52.6 | 325 41 23.5 -33.5 7 332 8055 330 66 33.0 -57.2 | 320 50 32.0 -38.1 8 326 8173 330 68 34.0 -58.9 | 320 52 33.0 -39.8 9 300 8710 330 60 30.0 -52.0 | 319 44 29.0 -32.9 10 250 9900 335 52 22.0 -47.1 | 323 35 20.9 -28.1 11 200 11370 335 44 18.6 -39.9 | 320 27 17.5 -20.8 12 150 13270 330 42 21.0 -36.4 | 311 26 20.0 -17.3 13 100 15940 335 35 14.8 -31.7 | 313 19 13.7 -12.6 14 70 18300 340 36 12.3 -33.8 | 323 19 11.3 -14.8 15 50 20520 335 31 13.1 -28.1 | 307 15 12.1 -9.0 16 30 23850 345 33 8.5 -31.9 | 330 15 7.5 -12.8 17 20 26480 330 42 21.0 -36.4 | 311 26 20.0 -17.3 Wind Parameters Mean winds (0-6000m): 326.9 at 25.5 knts Storm direction: 356.9 at 19.1 knts Shear (0-3000m) pos: 0.6 neg: 2.6 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 99.2 deg Storm rel helicity (0-3000m) pos: 46.2 neg: 0.0 tot: 46.2 m^2/s^2 ave: 15.4 10^-3 m/s^2 rel: 0.74 Storm rel vorticity (0-3000m) horiz: 4.0 stream: 3.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.04 Bulk Shear: 38.90 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 ------------------------------------------------------------------------------- 500 348 9 185 10| 0.0 7.2 7.2| 21.6 0.0 21.6 43.2 0.81| 10.3 8.3 1000 339 12 202 9| 0.0 6.0 6.0| 31.2 0.0 31.2 31.2 0.81| 8.0 6.5 1500 331 13 217 9| 0.0 5.1 5.1| 34.6 0.0 34.6 23.0 0.70| 6.7 4.7 2000 326 14 224 10| 0.2 3.9 4.1| 37.2 0.0 37.2 18.6 0.71| 5.2 3.7 2500 324 15 229 10| 0.4 3.1 3.4| 39.9 0.0 39.9 16.0 0.72| 4.4 3.1 3000 323 16 233 11| 0.6 2.6 3.2| 46.2 0.0 46.2 15.4 0.74| 4.0 3.0 4000 323 18 245 11| 1.7 1.9 3.6| 77.7 0.0 77.7 19.4 0.78| 4.2 3.3 5000 325 22 263 11| 2.4 1.5 3.9|113.6 0.0 113.6 22.7 0.76| 4.4 3.3 6000 327 25 280 13| 2.9 1.3 4.2|155.7 0.0 155.7 25.9 0.71| 4.6 3.2 Wrote GIF file: /home/apache/climate/data/raob//U0744/skewt/U0744.skewt.20250417.12.gif