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 U2271... Searching the city database file for: U2271 ... Date:0000Z 17 APR 25 Station: U2271 WMO ident: 22271 Latitude: 67.88 Longitude: 44.13 ------------------------------------------------------------------------------- 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 1024 10 -5.3 -6.0 95 0.7 -5.5 0 0 266.0 266.4 266.3 272.4 2.38 1 1017 64 -3.1 -5.6 83 2.5 -3.9 1 1 268.8 269.2 268.3 275.4 2.47 2 1000 197 -3.5 -7.0 77 3.5 -4.6 5 5 269.6 270.0 268.5 275.8 2.26 3 985 316 -4.3 -8.7 71 4.4 -5.7 2 7 270.0 270.3 268.4 275.5 2.01 4 925 807 -8.7 -11.9 78 3.2 -9.5 350 13 270.4 270.7 268.0 275.0 1.66 5 850 1457 -13.5 -14.5 92 1.0 -13.7 330 17 272.0 272.2 268.7 276.1 1.46 6 845 1502 -13.9 -14.8 93 0.9 -14.1 330 18 272.0 272.3 268.7 276.1 1.43 7 832 1620 -13.1 -13.9 94 0.8 -13.3 329 19 274.1 274.4 270.2 278.5 1.57 8 806 1861 -13.1 -24.1 39 11.0 -15.1 329 22 276.6 276.7 270.3 278.6 0.68 9 795 1966 -13.1 -28.1 27 15.0 -15.6 328 23 277.7 277.8 270.6 279.1 0.48 10 722 2695 -16.1 -36.1 16 20.0 -18.6 326 32 282.1 282.2 272.8 282.9 0.24 11 700 2927 -17.3 -37.3 16 20.0 -19.7 325 35 283.3 283.4 273.5 284.0 0.22 12 590 4188 -24.7 -39.7 24 15.0 -26.2 322 54 288.9 289.0 276.5 289.6 0.21 13 500 5370 -33.1 -48.1 21 15.0 -34.0 320 73 292.7 292.7 278.2 293.0 0.10 14 497 5412 -33.7 -48.7 21 15.0 -34.6 320 74 292.5 292.5 278.0 292.8 0.09 15 461 5937 -35.3 -50.3 20 15.0 -36.1 322 89 296.8 296.8 280.0 297.1 0.08 16 400 6910 -42.1 -56.1 20 14.0 -42.6 325 116 300.3 300.3 281.5 300.4 0.05 17 350 7803 -47.8 -60.6 22 12.8 -48.1 325 126 304.2 304.2 283.1 304.3 0.03 18 323 8329 -51.3 -63.3 23 12.0 -51.5 325 118 306.5 306.5 284.0 306.6 0.02 19 319 8410 -51.3 -63.3 23 12.0 -51.5 325 114 307.6 307.6 284.4 307.7 0.02 20 300 8810 -51.1 -64.1 20 13.0 -51.3 325 97 313.3 313.3 286.5 313.4 0.02 21 250 10000 -49.9 -62.9 20 13.0 -50.2 330 68 331.9 331.9 292.3 332.0 0.03 22 200 11460 -49.1 -63.1 18 14.0 -49.6 325 52 355.0 355.0 297.7 355.2 0.04 23 150 13350 -48.5 -63.5 16 15.0 -49.1 320 44 386.5 386.5 303.3 386.7 0.05 24 136 13993 -47.9 -63.9 14 16.0 -48.7 320 41 398.5 398.6 305.0 398.8 0.05 25 100 16010 -49.3 -66.3 12 17.0 -50.2 320 33 432.5 432.5 309.1 432.7 0.05 26 70 18340 -51.5 -68.5 11 17.0 -52.5 315 29 474.2 474.2 313.0 474.5 0.05 27 50 20540 -48.5 -66.5 11 18.0 -50.3 325 23 529.2 529.2 316.9 529.8 0.10 28 36 22703 -47.7 -65.7 11 18.0 -50.1 331 26 583.4 583.4 319.9 584.5 0.15 29 30 23900 -49.7 -68.7 9 19.0 -52.1 335 27 609.1 609.2 321.0 610.1 0.12 30 20 26540 -52.9 -70.9 10 18.0 -55.4 335 38 674.3 674.3 323.6 675.4 0.13 31 15 28406 -50.5 -69.5 9 19.0 -54.2 740.0 740.1 325.7 742.1 0.22 TRP 323 8329 -51.3 -63.3 23 12.0 -51.5 325 118 306.5 306.5 284.0 306.6 0.02 WND 350 7803 -47.8 -60.6 22 12.8 -48.1 325 126 304.2 304.2 283.1 304.3 0.03 Sounding variables and indices 1000-500 mb thick: 5173.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.19 inches Sfc-500 mean rel hum: 40.60 % Est. max temperature: 0.19 C = 32.34 F Sfc-Lift cond lev (LCL): 1012.50 mb = 99.08 m = 325.07 ft T: -3.21 C 700-500 lapse rate: 6.47 C/km ThetaE index: 0.78 C Layer 985.0- 850.0 mb Conv cond level (CCL): 907.28 mb = 955.73 m = 3135.55 ft Mean mixing ratio: 2.00 g/kg Conv temperature: -0.53 C = 31.05 F Cap Strength: 12.43 C Lifted Index: 14.55 C Risk: None Lifted Index @300 mb: 26.99 C Lifted Index @700 mb: 8.99 C Showalter Index: 13.87 C Risk: None Total Totals Index: 38.20 C Risk: None Vertical Totals Index: 19.60 C Cross Totals Index: 18.60 C K Index: -14.90 Risk: None Sweat Index: 107.00 Risk: None Energy Index: 3.61 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 7.69 J/kg Max Up Vert Vel: 3.92 m/s Conv Inhibition (B-): 62406.86 J/kg Cap Strength: 14.52 C Lift Cond Lev (LCL): 920.93 mb = 840.87 m = 2758.71 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 354 at 30 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 1024 10 0 0 -0.0 -0.0 | 174 30 -3.3 30.0 1 1000 197 5 5 -0.4 -5.0 | 171 25 -3.8 25.0 2 925 807 350 13 2.3 -12.8 | 176 17 -1.1 17.2 3 850 1457 330 17 8.5 -14.7 | 199 16 5.2 15.3 4 700 2927 325 35 20.1 -28.7 | 265 17 16.8 1.3 5 500 5370 320 73 46.9 -55.9 | 301 51 43.6 -25.9 6 400 6910 325 116 66.5 -95.0 | 316 91 63.2 -65.0 7 350 7803 325 126 72.3 -103.2 | 317 101 69.0 -73.2 8 323 8329 325 118 67.7 -96.7 | 316 93 64.4 -66.6 9 300 8810 325 97 55.6 -79.5 | 313 72 52.3 -49.4 10 250 10000 330 68 34.0 -58.9 | 313 42 30.7 -28.9 11 200 11460 325 52 29.8 -42.6 | 295 29 26.5 -12.6 12 150 13350 320 44 28.3 -33.7 | 278 25 25.0 -3.7 13 100 16010 320 33 21.2 -25.3 | 255 19 17.9 4.7 14 70 18340 315 29 20.5 -20.5 | 241 20 17.2 9.5 15 50 20540 325 23 13.2 -18.8 | 221 15 9.9 11.2 16 30 23900 335 27 11.4 -24.5 | 236 10 8.1 5.5 17 20 26540 335 38 16.1 -34.4 | 289 13 12.7 -4.4 Wind Parameters Mean winds (0-6000m): 323.7 at 40.3 knts Storm direction: 353.7 at 30.2 knts Shear (0-3000m) pos: 0.0 neg: 6.2 tot: 6.2 10-3/s Storm rel Dir Shear (0-3000m): 95.2 deg Storm rel helicity (0-3000m) pos: 104.0 neg: -7.9 tot: 96.1 m^2/s^2 ave: 32.0 10^-3 m/s^2 rel: 0.63 Storm rel vorticity (0-3000m) horiz: 6.7 stream: 4.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.04 Bulk Shear: 172.96 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 1 5 172 25| 0.0 9.4 9.4| 1.7 -7.9 -6.2 -12.4 -0.09| 9.5 -0.8 1000 352 9 174 21| 0.0 7.3 7.3| 16.5 -7.9 8.6 8.6 0.15| 7.9 1.2 1500 344 11 179 19| 0.0 6.1 6.1| 38.1 -7.9 30.1 20.1 0.36| 7.0 2.6 2000 338 13 185 18| 0.0 6.1 6.1| 59.6 -7.9 51.7 25.8 0.49| 6.9 3.4 2500 334 16 193 16| 0.0 6.2 6.2| 81.4 -7.9 73.5 29.4 0.58| 6.8 3.9 3000 331 19 204 15| 0.0 6.2 6.2|104.0 -7.9 96.1 32.0 0.63| 6.7 4.2 4000 328 25 229 13| 0.0 6.7 6.7|158.3 -7.9 150.4 37.6 0.61| 7.1 4.3 5000 325 32 257 15| 0.0 6.9 6.9|204.7 -7.9 196.8 39.4 0.54| 7.3 3.9 6000 324 40 277 21| 1.2 6.6 7.8|340.2 -7.9 332.3 55.4 0.50| 8.1 4.1 Wrote GIF file: /home/apache/climate/data/raob//U2271/skewt/U2271.skewt.20250417.00.gif