UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041700.upa.cvt Date: 0000Z 17 APR 25 Searching for U0744... Searching the city database file for: U0744 ... Date:0000Z 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 1016 18 -4.7 -7.3 82 2.6 -5.5 30 9 267.2 267.6 266.7 273.1 2.17 1 1005 104 -5.3 -11.3 63 6.0 -7.0 13 14 267.5 267.7 265.9 271.9 1.60 2 1000 143 -5.5 -11.5 63 6.0 -7.1 5 17 267.6 267.9 266.0 272.0 1.58 3 925 748 -11.1 -13.5 82 2.4 -11.7 350 27 268.0 268.2 266.0 272.0 1.46 4 852 1374 -15.7 -16.9 90 1.2 -15.9 360 27 269.5 269.7 266.6 272.9 1.19 5 850 1392 -15.7 -16.9 90 1.2 -15.9 360 27 269.7 269.9 266.7 273.1 1.20 6 843 1454 -15.9 -17.1 90 1.2 -16.2 360 27 270.1 270.3 267.0 273.5 1.19 7 805 1802 -15.5 -21.5 60 6.0 -16.6 360 28 274.1 274.3 269.1 276.6 0.85 8 744 2395 -16.9 -22.9 60 6.0 -18.0 360 28 278.9 279.0 271.9 281.3 0.81 9 700 2850 -20.1 -26.1 59 6.0 -21.0 360 29 280.2 280.3 272.4 282.2 0.65 10 500 5250 -38.5 -43.5 59 5.0 -38.8 345 36 286.1 286.1 274.9 286.6 0.16 11 457 5862 -43.3 -48.1 59 4.8 -43.5 347 40 287.5 287.6 275.6 287.9 0.11 12 400 6750 -47.9 -52.7 58 4.8 -48.0 350 46 292.7 292.7 278.2 293.0 0.07 13 340 7808 -53.9 -58.4 58 4.5 -54.0 345 50 298.5 298.5 280.7 298.6 0.04 14 336 7884 -54.1 -58.6 58 4.5 -54.2 345 50 299.2 299.2 281.1 299.4 0.04 15 328 8039 -52.1 -56.7 58 4.6 -52.2 344 49 304.1 304.1 283.1 304.3 0.05 16 312 8363 -51.5 -56.0 58 4.5 -51.6 342 49 309.3 309.3 285.1 309.5 0.06 17 303 8555 -48.7 -53.7 56 5.0 -48.8 340 48 315.8 315.8 287.5 316.1 0.08 18 300 8620 -48.5 -53.5 56 5.0 -48.7 340 48 317.0 317.0 287.9 317.3 0.09 19 278 9121 -47.9 -53.9 50 6.0 -48.1 342 46 324.8 324.9 290.3 325.2 0.09 20 250 9820 -47.9 -56.9 35 9.0 -48.2 345 44 334.9 334.9 293.1 335.1 0.07 21 200 11300 -45.3 -60.3 17 15.0 -46.0 340 46 361.0 361.1 299.0 361.3 0.06 22 189 11679 -45.9 -61.9 15 16.0 -46.6 337 44 366.0 366.0 299.9 366.2 0.05 23 150 13220 -47.1 -69.1 6 22.0 -47.9 325 38 388.9 388.9 303.6 389.0 0.02 24 100 15910 -44.5 -69.5 5 25.0 -46.0 345 35 441.7 441.8 310.1 441.9 0.03 25 84 17065 -48.9 -72.9 4 24.0 -50.1 335 36 455.4 455.4 311.4 455.5 0.02 26 71 18176 -46.1 -70.1 5 24.0 -47.9 326 38 483.8 483.8 313.8 484.1 0.04 27 70 18270 -46.3 -70.3 5 24.0 -48.1 325 38 485.3 485.3 313.9 485.6 0.04 28 50 20480 -50.7 -73.7 5 23.0 -52.2 335 35 524.0 524.0 316.6 524.2 0.04 29 45 21173 -46.5 -70.5 5 24.0 -49.0 334 36 550.2 550.2 318.1 550.7 0.06 30 42 21630 -46.3 -70.3 5 24.0 -49.0 333 36 561.7 561.7 318.8 562.2 0.07 31 32 23418 -50.9 -73.9 5 23.0 -53.1 331 38 594.8 594.8 320.4 595.2 0.05 32 30 23840 -48.9 -72.9 4 24.0 -51.6 330 38 611.3 611.4 321.2 611.8 0.07 33 26 24783 -47.5 -71.5 5 24.0 -50.9 325 39 640.8 640.9 322.3 641.6 0.09 34 23 25589 -49.3 -73.3 4 24.0 -52.5 320 41 658.4 658.5 323.0 659.1 0.08 35 20 26510 -47.1 -71.1 5 24.0 -51.3 315 42 692.0 692.1 324.2 693.1 0.13 36 18 27207 -47.7 -71.7 5 24.0 -52.0 711.3 711.3 324.8 712.5 0.13 37 17 27582 -50.3 -74.3 4 24.0 -53.9 714.7 714.7 324.9 715.5 0.10 TRP 340 7808 -53.9 -58.4 58 4.5 -54.0 345 50 298.5 298.5 280.7 298.6 0.04 WND Sounding variables and indices 1000-500 mb thick: 5107.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.19 inches Sfc-500 mean rel hum: 65.52 % Est. max temperature: -2.71 C = 27.12 F Sfc-Lift cond lev (LCL): 974.99 mb = 339.52 m = 1113.90 ft T: -7.32 C 700-500 lapse rate: 7.67 C/km ThetaE index: 1.23 C Layer 1005.0-1000.0 mb Conv cond level (CCL): 891.35 mb = 1030.29 m = 3380.16 ft Mean mixing ratio: 1.55 g/kg Conv temperature: -3.26 C = 26.14 F Cap Strength: 8.74 C Lifted Index: 11.75 C Risk: None Lifted Index @300 mb: 31.87 C Lifted Index @700 mb: 8.74 C Showalter Index: 10.93 C Risk: None Total Totals Index: 44.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.80 C Cross Totals Index: 21.60 C K Index: -0.10 Risk: None Sweat Index: 90.00 Risk: None Energy Index: 2.91 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.61 J/kg Max Up Vert Vel: 1.79 m/s Conv Inhibition (B-): 60781.98 J/kg Cap Strength: 11.70 C Lift Cond Lev (LCL): 903.81 mb = 924.51 m = 3033.14 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 23 at 23 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 18 30 9 -4.5 -7.8 | 199 14 4.5 13.1 1 1000 143 5 17 -1.5 -16.9 | 243 8 7.5 3.9 2 925 748 350 27 4.7 -26.6 | 293 15 13.7 -5.7 3 850 1392 360 27 -0.0 -27.0 | 304 11 9.0 -6.2 4 700 2850 360 29 -0.0 -29.0 | 312 12 9.0 -8.2 5 500 5250 345 36 9.3 -34.8 | 307 23 18.3 -13.9 6 400 6750 350 46 8.0 -45.3 | 325 30 17.0 -24.5 7 340 7808 345 50 12.9 -48.3 | 321 35 22.0 -27.5 8 300 8620 340 48 16.4 -45.1 | 314 35 25.4 -24.3 9 250 9820 345 44 11.4 -42.5 | 317 30 20.4 -21.7 10 200 11300 340 46 15.7 -43.2 | 312 33 24.7 -22.4 11 150 13220 325 38 21.8 -31.1 | 288 32 30.8 -10.3 12 100 15910 345 35 9.1 -33.8 | 306 22 18.1 -13.0 13 70 18270 325 38 21.8 -31.1 | 288 32 30.8 -10.3 14 50 20480 335 35 14.8 -31.7 | 295 26 23.8 -10.9 15 30 23840 330 38 19.0 -32.9 | 293 31 28.0 -12.1 16 20 26510 315 42 29.7 -29.7 | 283 40 38.7 -8.9 Wind Parameters Mean winds (0-6000m): 353.4 at 30.3 knts Storm direction: 23.4 at 22.7 knts Shear (0-3000m) pos: 0.5 neg: 3.9 tot: 4.4 10-3/s Storm rel Dir Shear (0-3000m): 113.0 deg Storm rel helicity (0-3000m) pos: 56.2 neg: -0.0 tot: 56.2 m^2/s^2 ave: 18.7 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 4.8 stream: 3.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.08 Bulk Shear: 20.59 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 2 18 253 9| 0.0 17.0 17.0| 34.8 0.0 34.8 69.7 0.83| 17.4 14.5 1000 356 22 277 11| 0.0 10.5 10.5| 46.6 0.0 46.6 46.6 0.77| 11.8 9.0 1500 357 24 286 11| 0.9 7.0 7.9| 51.9 0.0 51.9 34.6 0.74| 8.8 6.6 2000 358 25 291 11| 0.7 5.4 6.1| 53.5 0.0 53.5 26.8 0.75| 6.8 5.1 2500 358 25 295 11| 0.6 4.5 5.0| 55.1 0.0 55.1 22.1 0.75| 5.6 4.2 3000 358 26 298 11| 0.5 3.9 4.4| 56.2 -0.0 56.2 18.7 0.73| 4.8 3.5 4000 358 27 302 12| 0.4 3.4 3.8| 56.2 -1.6 54.6 13.7 0.62| 4.2 2.6 5000 355 29 304 14| 0.3 3.1 3.4| 56.2 -6.6 49.7 9.9 0.51| 3.9 2.0 6000 353 30 306 16| 0.4 2.8 3.2| 83.9 -8.0 75.8 12.6 0.53| 3.8 2.0 Wrote GIF file: /home/apache/climate/data/raob//U0744/skewt/U0744.skewt.20250417.00.gif