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 U8275... Searching the city database file for: U8275 ... Date:1200Z 18 APR 25 Station: U8275 WMO ident: 28275 Latitude: 58.15 Longitude: 68.18 ------------------------------------------------------------------------------- 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 1015 56 -0.5 -12.5 40 12.0 -4.0 360 7 271.5 271.7 268.4 275.5 1.44 1 1000 175 -1.9 -13.9 39 12.0 -5.2 335 7 271.2 271.5 268.0 274.9 1.30 2 975 374 -4.7 -16.7 38 12.0 -7.6 335 8 270.4 270.6 267.0 273.4 1.06 3 925 781 -8.9 -17.9 48 9.0 -10.9 335 11 270.2 270.4 266.7 273.1 1.01 4 895 1037 -11.7 -19.7 51 8.0 -13.3 339 10 269.9 270.0 266.3 272.4 0.89 5 869 1263 -12.3 -19.3 56 7.0 -13.7 342 10 271.5 271.7 267.5 274.3 0.95 6 850 1433 -13.7 -22.7 47 9.0 -15.3 345 9 271.8 271.9 267.3 273.9 0.73 7 824 1668 -15.5 -26.5 38 11.0 -17.2 347 11 272.3 272.4 267.3 273.9 0.53 8 700 2881 -22.7 -36.7 27 14.0 -24.1 355 23 277.3 277.4 269.9 278.1 0.24 9 670 3200 -24.5 -40.5 21 16.0 -25.9 358 25 278.8 278.9 270.8 279.4 0.17 10 656 3353 -25.3 -42.3 19 17.0 -26.6 359 26 279.6 279.6 271.2 280.1 0.14 11 555 4544 -32.7 -46.7 23 14.0 -33.5 9 35 284.5 284.6 273.9 284.9 0.10 12 500 5270 -36.9 -50.9 22 14.0 -37.5 15 40 288.0 288.1 275.7 288.3 0.07 13 462 5812 -41.3 -55.3 21 14.0 -41.8 10 48 289.1 289.2 276.3 289.3 0.05 14 400 6780 -46.3 -59.3 22 13.0 -46.6 360 62 294.8 294.8 279.0 294.9 0.03 15 390 6947 -47.5 -59.5 24 12.0 -47.7 359 64 295.4 295.4 279.3 295.5 0.03 16 338 7889 -48.7 -61.2 22 12.5 -49.0 355 73 306.1 306.1 283.9 306.2 0.03 17 300 8670 -49.7 -62.7 20 13.0 -50.0 355 69 315.3 315.3 287.2 315.4 0.03 18 282 9076 -49.9 -62.9 20 13.0 -50.2 353 66 320.6 320.6 289.0 320.8 0.03 19 250 9870 -47.7 -62.7 16 15.0 -48.1 350 60 335.2 335.2 293.2 335.3 0.03 20 237 10222 -47.3 -63.3 14 16.0 -47.8 349 59 340.9 340.9 294.6 341.0 0.03 21 200 11340 -48.1 -65.1 12 17.0 -48.6 345 56 356.6 356.6 298.1 356.7 0.03 22 176 12183 -47.9 -67.9 8 20.0 -48.6 343 50 370.2 370.2 300.6 370.3 0.02 23 150 13240 -46.9 -67.9 7 21.0 -47.7 340 42 389.2 389.3 303.7 389.4 0.03 24 100 15900 -48.5 -70.5 6 22.0 -49.6 325 33 434.0 434.0 309.3 434.2 0.03 25 98 16033 -48.7 -70.7 6 22.0 -49.7 326 32 436.1 436.2 309.5 436.3 0.03 26 72 18055 -49.9 -71.9 6 22.0 -51.1 339 24 473.8 473.8 313.0 474.0 0.03 27 70 18240 -49.3 -71.3 6 22.0 -50.6 340 23 478.9 478.9 313.4 479.1 0.04 28 59 19352 -51.9 -73.9 5 22.0 -53.1 330 23 497.1 497.1 314.8 497.3 0.03 29 51 20300 -49.5 -73.5 4 24.0 -51.2 321 23 523.8 523.9 316.5 524.1 0.04 30 50 20430 -49.5 -73.5 4 24.0 -51.2 320 23 526.8 526.8 316.8 527.1 0.04 31 45 21114 -52.3 -75.3 5 23.0 -53.7 319 21 536.1 536.2 317.3 536.3 0.03 32 36 22560 -50.7 -73.7 5 23.0 -52.7 317 18 575.6 575.6 319.5 576.0 0.05 33 30 23740 -52.7 -75.7 5 23.0 -54.6 315 15 601.0 601.0 320.7 601.3 0.04 34 28 24184 -52.1 -75.1 5 23.0 -54.2 313 16 614.6 614.6 321.3 615.0 0.05 35 21 26037 -52.3 -75.3 5 23.0 -54.9 306 19 666.7 666.7 323.3 667.3 0.07 36 20 26350 -54.1 -77.1 4 23.0 -56.4 305 19 670.6 670.6 323.4 671.0 0.05 37 15 28195 -54.3 -77.3 4 23.0 -57.1 727.4 727.4 325.3 728.0 0.07 TRP 338 7889 -50.9 -62.9 23 12.0 -51.1 355 73 303.1 303.1 282.7 303.2 0.02 WND 338 7889 -48.7 -61.2 22 12.5 -49.0 355 73 306.1 306.1 283.9 306.2 0.03 Sounding variables and indices 1000-500 mb thick: 5095.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.11 inches Sfc-500 mean rel hum: 31.40 % Est. max temperature: -0.40 C = 31.28 F Sfc-Lift cond lev (LCL): 840.46 mb = 1518.41 m = 4981.61 ft T: -14.35 C 700-500 lapse rate: 5.94 C/km ThetaE index: 3.10 C Layer 1000.0- 869.0 mb Conv cond level (CCL): 760.06 mb = 2268.79 m = 7443.46 ft Mean mixing ratio: 1.11 g/kg Conv temperature: 2.85 C = 37.13 F Cap Strength: 9.58 C Lifted Index: 12.01 C Risk: None Lifted Index @300 mb: 29.50 C Lifted Index @700 mb: 4.82 C Showalter Index: 11.83 C Risk: None Total Totals Index: 37.40 C Risk: None Vertical Totals Index: 23.20 C Cross Totals Index: 14.20 C K Index: -13.50 Risk: None Sweat Index: 58.00 Risk: None Energy Index: 2.99 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.77 J/kg Max Up Vert Vel: 4.19 m/s Conv Inhibition (B-): 61638.35 J/kg Cap Strength: 11.95 C Lift Cond Lev (LCL): 811.07 mb = 1785.72 m = 5858.60 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 34 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 1015 56 360 7 -0.0 -7.0 | 231 13 10.4 8.5 1 1000 175 335 7 3.0 -6.3 | 235 16 13.3 9.2 2 925 781 335 11 4.6 -10.0 | 250 16 15.0 5.6 3 850 1433 345 9 2.3 -8.7 | 242 14 12.7 6.9 4 700 2881 355 23 2.0 -22.9 | 301 14 12.4 -7.4 5 500 5270 15 40 -10.4 -38.6 | 360 23 0.0 -23.1 6 400 6780 360 62 -0.0 -62.0 | 347 48 10.4 -46.5 7 338 7889 355 73 6.4 -72.7 | 344 60 16.7 -57.2 8 300 8670 355 69 6.0 -68.7 | 343 56 16.4 -53.2 9 250 9870 350 60 10.4 -59.1 | 334 48 20.8 -43.5 10 200 11340 345 56 14.5 -54.1 | 327 46 24.9 -38.5 11 150 13240 340 42 14.4 -39.5 | 314 34 24.7 -23.9 12 100 15900 325 33 18.9 -27.0 | 291 31 29.3 -11.5 13 70 18240 340 23 7.9 -21.6 | 288 19 18.2 -6.1 14 50 20430 320 23 14.8 -17.6 | 275 25 25.2 -2.1 15 30 23740 315 15 10.6 -10.6 | 257 22 21.0 4.9 16 20 26350 305 19 15.6 -10.9 | 260 26 25.9 4.6 Wind Parameters Mean winds (0-6000m): 3.7 at 24.9 knts Storm direction: 33.7 at 18.7 knts Shear (0-3000m) pos: 2.7 neg: 0.7 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 75.6 deg Storm rel helicity (0-3000m) pos: 75.6 neg: -6.9 tot: 68.7 m^2/s^2 ave: 22.9 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 3.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.20 Bulk Shear: 43.45 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 ------------------------------------------------------------------------------- 500 338 8 239 16| 0.0 4.5 4.5| 15.4 0.0 15.4 30.8 0.71| 5.4 3.9 1000 337 9 243 16| 0.5 2.2 2.7| 21.0 -2.7 18.2 18.2 0.57| 3.9 2.3 1500 339 9 244 15| 0.7 1.5 2.2| 24.5 -6.9 17.5 11.7 0.42| 3.4 1.5 2000 342 10 246 15| 1.6 1.1 2.7| 41.6 -6.9 34.7 17.4 0.61| 3.8 2.3 2500 345 12 252 14| 2.3 0.9 3.2| 58.9 -6.9 52.0 20.8 0.70| 4.1 2.9 3000 348 13 259 13| 2.7 0.7 3.4| 75.6 -6.9 68.7 22.9 0.75| 4.2 3.2 4000 354 17 276 12| 3.0 0.6 3.6|108.0 -6.9 101.1 25.3 0.80| 4.2 3.4 5000 360 21 297 12| 3.2 0.4 3.7|147.1 -6.9 140.2 28.0 0.81| 4.3 3.5 6000 4 25 317 13| 2.7 1.4 4.1|156.0 -31.9 124.1 20.7 0.57| 4.8 2.7 Wrote GIF file: /home/apache/climate/data/raob//U8275/skewt/U8275.skewt.20250418.12.gif