UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for U0744... Searching the city database file for: U0744 ... Date:0000Z 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 1016 19 -6.1 -7.7 88 1.6 -6.6 180 3 265.8 266.2 265.7 271.5 2.10 1 1006 96 -6.7 -11.2 70 4.5 -7.9 174 5 266.0 266.3 264.9 270.4 1.61 2 1000 143 -6.9 -11.2 71 4.3 -8.1 170 7 266.2 266.5 265.1 270.7 1.62 3 925 747 -11.1 -14.0 79 2.9 -11.8 300 9 268.0 268.2 265.9 271.8 1.40 4 850 1389 -17.1 -19.9 79 2.8 -17.6 315 9 268.2 268.4 265.2 270.9 0.93 5 805 1794 -20.1 -22.3 83 2.2 -20.4 314 13 269.2 269.4 265.7 271.5 0.79 6 795 1887 -19.7 -21.9 83 2.2 -20.1 313 15 270.6 270.8 266.7 273.0 0.83 7 734 2480 -18.7 -29.7 37 11.0 -20.3 311 21 278.0 278.1 270.7 279.3 0.44 8 700 2834 -18.3 -34.3 23 16.0 -20.3 310 25 282.2 282.3 273.0 283.2 0.30 9 698 2855 -18.1 -35.1 21 17.0 -20.2 310 25 282.7 282.7 273.2 283.6 0.28 10 619 3745 -21.9 -42.9 13 21.0 -23.9 312 28 288.2 288.2 276.0 288.7 0.14 11 613 3817 -22.1 -43.1 13 21.0 -24.1 312 28 288.8 288.8 276.3 289.2 0.14 12 500 5280 -33.5 -48.5 21 15.0 -34.3 315 33 292.2 292.2 277.9 292.5 0.09 13 434 6253 -42.3 -53.3 29 11.0 -42.7 315 40 293.1 293.1 278.3 293.3 0.06 14 400 6800 -45.1 -55.1 32 10.0 -45.4 315 44 296.4 296.4 279.8 296.6 0.05 15 364 7429 -48.3 -58.3 31 10.0 -48.6 318 57 300.2 300.2 281.5 300.4 0.04 16 344 7802 -49.8 -59.8 30 10.0 -50.1 320 64 303.0 303.0 282.7 303.1 0.03 17 331 8055 -50.9 -60.9 30 10.0 -51.1 315 60 304.9 304.9 283.4 305.0 0.03 18 300 8700 -49.5 -60.5 26 11.0 -49.8 320 60 315.6 315.6 287.3 315.7 0.04 19 286 9012 -48.9 -60.9 23 12.0 -49.2 321 58 320.8 320.8 289.0 320.9 0.04 20 250 9890 -49.1 -63.1 18 14.0 -49.4 325 52 333.1 333.1 292.6 333.2 0.03 21 230 10438 -48.9 -64.9 14 16.0 -49.3 327 49 341.4 341.4 294.7 341.5 0.03 22 200 11360 -47.9 -65.9 11 18.0 -48.4 330 44 356.9 356.9 298.1 357.0 0.03 23 198 11426 -47.7 -66.7 9 19.0 -48.3 330 44 358.3 358.3 298.4 358.4 0.02 24 181 12018 -48.7 -68.7 8 20.0 -49.3 330 43 366.0 366.0 299.8 366.0 0.02 25 159 12868 -49.7 -70.7 7 21.0 -50.3 330 41 378.1 378.1 301.9 378.2 0.02 26 150 13250 -48.9 -70.9 6 22.0 -49.6 330 40 385.8 385.8 303.2 385.9 0.02 27 128 14292 -47.9 -71.9 5 24.0 -48.8 332 38 405.5 405.5 305.9 405.6 0.02 28 127 14343 -47.9 -71.9 5 24.0 -48.8 332 38 406.4 406.4 306.0 406.5 0.02 29 100 15910 -50.1 -74.1 4 24.0 -51.0 335 35 430.9 430.9 308.9 431.0 0.02 30 80 17372 -50.3 -74.3 4 24.0 -51.4 344 31 458.9 458.9 311.7 459.0 0.02 31 70 18250 -48.3 -72.3 5 24.0 -49.8 350 29 481.1 481.1 313.5 481.2 0.03 32 50 20460 -49.1 -73.1 4 24.0 -50.9 345 29 527.8 527.8 316.8 528.0 0.04 33 48 20728 -48.9 -72.9 4 24.0 -50.8 346 30 534.4 534.5 317.2 534.7 0.04 34 30 23780 -53.3 -76.3 4 23.0 -55.1 355 36 599.3 599.3 320.6 599.6 0.04 35 25 24960 -48.3 -72.3 5 24.0 -51.6 357 40 645.8 645.8 322.6 646.5 0.09 36 20 26410 -52.1 -75.1 5 23.0 -54.9 360 46 676.7 676.7 323.7 677.3 0.07 37 19 26741 -53.5 -76.5 4 23.0 -56.1 682.4 682.4 323.9 682.9 0.06 38 15 28276 -49.5 -73.5 4 24.0 -53.7 743.4 743.4 325.8 744.5 0.12 TRP 331 8055 -50.9 -60.9 30 10.0 -51.1 315 60 304.9 304.9 283.4 305.0 0.03 WND 344 7802 -49.8 -59.8 30 10.0 -50.1 320 64 303.0 303.0 282.7 303.1 0.03 Sounding variables and indices 1000-500 mb thick: 5137.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 43.84 % Est. max temperature: -3.75 C = 25.26 F Sfc-Lift cond lev (LCL): 990.39 mb = 217.84 m = 714.68 ft T: -7.42 C 700-500 lapse rate: 6.21 C/km ThetaE index: 1.11 C Layer 1006.0-1000.0 mb Conv cond level (CCL): 897.61 mb = 975.24 m = 3199.56 ft Mean mixing ratio: 1.54 g/kg Conv temperature: -3.86 C = 25.06 F Cap Strength: 15.88 C Lifted Index: 17.40 C Risk: None Lifted Index @300 mb: 31.46 C Lifted Index @700 mb: 11.21 C Showalter Index: 17.69 C Risk: None Total Totals Index: 30.00 C Risk: None Vertical Totals Index: 16.40 C Cross Totals Index: 13.60 C K Index: -19.50 Risk: None Sweat Index: 51.00 Risk: None Energy Index: 4.64 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.67 J/kg Max Up Vert Vel: 3.06 m/s Conv Inhibition (B-): 61949.99 J/kg Cap Strength: 17.37 C Lift Cond Lev (LCL): 912.37 mb = 851.39 m = 2793.25 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 342 at 17 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 1016 19 180 3 0.0 3.0 | 165 20 -5.2 19.0 1 1000 143 170 7 -1.2 6.9 | 164 24 -6.5 22.9 2 925 747 300 9 7.8 -4.5 | 193 12 2.6 11.5 3 850 1389 315 9 6.4 -6.4 | 187 10 1.1 9.6 4 700 2834 310 25 19.2 -16.1 | 270 14 13.9 -0.1 5 500 5280 315 33 23.3 -23.3 | 292 20 18.1 -7.4 6 400 6800 315 44 31.1 -31.1 | 300 30 25.9 -15.2 7 344 7802 320 64 41.1 -49.0 | 313 49 35.9 -33.1 8 331 8055 315 60 42.4 -42.4 | 305 46 37.2 -26.5 9 300 8700 320 60 38.6 -46.0 | 312 45 33.3 -30.0 10 250 9890 325 52 29.8 -42.6 | 317 36 24.6 -26.6 11 200 11360 330 44 22.0 -38.1 | 323 28 16.8 -22.1 12 150 13250 330 40 20.0 -34.6 | 322 24 14.8 -18.7 13 100 15910 335 35 14.8 -31.7 | 329 18 9.5 -15.8 14 70 18250 350 29 5.0 -28.6 | 1 13 -0.2 -12.6 15 50 20460 345 29 7.5 -28.0 | 349 12 2.3 -12.1 16 30 23780 355 36 3.1 -35.9 | 6 20 -2.1 -19.9 17 20 26410 360 46 -0.0 -46.0 | 10 30 -5.2 -30.0 Wind Parameters Mean winds (0-6000m): 311.8 at 22.4 knts Storm direction: 341.8 at 16.8 knts Shear (0-3000m) pos: 2.2 neg: 2.6 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): 108.0 deg Storm rel helicity (0-3000m) pos: 94.1 neg: -3.1 tot: 91.1 m^2/s^2 ave: 30.4 10^-3 m/s^2 rel: 0.58 Storm rel vorticity (0-3000m) horiz: 6.9 stream: 4.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.06 Bulk Shear: 84.32 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 ------------------------------------------------------------------------------- 500 206 7 174 22| 8.0 0.0 8.0| 52.3 0.0 52.3 104.5 0.64| 14.4 9.2 1000 270 8 189 16| 5.7 0.0 5.7| 59.2 -1.5 57.7 57.7 0.45| 11.5 5.2 1500 293 8 191 13| 4.4 0.0 4.4| 61.9 -3.1 58.8 39.2 0.42| 8.6 3.6 2000 302 10 195 11| 3.3 1.4 4.7| 73.6 -3.1 70.6 35.3 0.52| 7.9 4.1 2500 306 11 203 10| 2.6 2.3 4.9| 85.3 -3.1 82.2 32.9 0.57| 7.4 4.2 3000 307 13 215 10| 2.2 2.6 4.8| 94.1 -3.1 91.1 30.4 0.58| 6.9 4.0 4000 309 17 236 10| 2.1 2.0 4.0|104.8 -3.1 101.7 25.4 0.59| 5.6 3.3 5000 311 20 252 10| 2.0 1.6 3.6|116.2 -3.1 113.2 22.6 0.60| 4.8 2.9 6000 312 22 265 11| 1.9 1.6 3.5|130.1 -3.1 127.0 21.2 0.58| 4.6 2.6 Wrote GIF file: /home/apache/climate/data/raob//U0744/skewt/U0744.skewt.20250418.00.gif