UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120112.upa.cvt Date: 1200Z 1 DEC 25 Searching for U2271... Searching the city database file for: U2271 ... Date:1200Z 1 DEC 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 1008 10 0.4 -3.9 73 4.3 -1.2 250 9 272.9 273.4 271.5 280.7 2.84 1 1000 74 0.6 -4.4 69 5.0 -1.2 245 13 273.8 274.2 271.9 281.3 2.75 2 925 693 -4.3 -12.3 54 8.0 -6.6 270 27 274.9 275.2 270.8 279.5 1.60 3 889 1005 -6.3 -18.3 38 12.0 -9.2 265 30 276.0 276.2 270.5 278.9 1.02 4 850 1354 -8.9 -18.9 44 10.0 -11.2 260 33 276.8 277.0 271.0 279.8 1.01 5 817 1659 -11.1 -20.1 47 9.0 -13.0 262 34 277.6 277.8 271.4 280.4 0.95 6 732 2493 -16.9 -29.9 31 13.0 -18.8 268 37 280.2 280.2 272.0 281.5 0.44 7 700 2828 -18.3 -33.3 26 15.0 -20.3 270 38 282.2 282.3 273.1 283.3 0.33 8 679 3055 -19.1 -37.1 19 18.0 -21.2 270 41 283.8 283.8 273.8 284.5 0.23 9 675 3098 -19.5 -37.5 19 18.0 -21.5 270 42 283.8 283.9 273.8 284.6 0.23 10 669 3165 -18.1 -35.1 21 17.0 -20.3 270 42 286.1 286.2 275.1 287.1 0.29 11 637 3529 -19.3 -25.3 59 6.0 -20.4 270 47 288.8 288.9 277.3 291.2 0.77 12 510 5149 -28.7 -33.6 63 4.9 -29.3 270 69 296.4 296.4 280.4 297.8 0.44 13 500 5290 -30.3 -35.0 63 4.7 -30.8 270 71 296.1 296.2 280.2 297.4 0.39 14 400 6840 -43.9 -48.7 59 4.8 -44.1 270 83 297.9 298.0 280.6 298.3 0.11 15 378 7217 -46.5 -51.1 59 4.6 -46.7 272 88 299.4 299.4 281.2 299.7 0.09 16 344 7833 -52.7 -57.4 57 4.7 -52.8 275 95 299.1 299.1 281.0 299.3 0.05 17 340 7908 -54.5 -59.2 56 4.7 -54.6 276 96 297.7 297.7 280.4 297.8 0.04 18 300 8700 -58.6 -63.4 54 4.8 -58.6 280 106 302.8 302.8 282.5 302.9 0.03 19 271 9337 -61.9 -66.8 52 4.9 -61.9 280 75 306.9 306.9 284.2 306.9 0.02 20 250 9840 -61.1 -66.0 52 4.9 -61.2 275 44 315.2 315.2 287.2 315.3 0.02 21 208 10993 -55.5 -62.5 41 7.0 -55.6 341 12 341.0 341.0 294.6 341.2 0.04 22 200 11240 -59.1 -66.1 40 7.0 -59.2 355 5 339.2 339.2 294.1 339.3 0.03 23 198 11303 -60.3 -67.3 39 7.0 -60.4 352 7 338.2 338.2 293.9 338.3 0.02 24 190 11563 -58.7 -66.7 35 8.0 -58.8 341 16 344.8 344.8 295.5 344.9 0.03 25 176 12043 -62.1 -70.1 34 8.0 -62.2 319 33 346.9 346.9 296.0 346.9 0.02 26 157 12755 -60.7 -69.7 30 9.0 -60.8 288 58 360.8 360.8 298.9 360.9 0.02 27 150 13040 -61.3 -70.3 29 9.0 -61.4 275 68 364.5 364.5 299.6 364.6 0.02 28 101 15450 -66.9 -76.9 23 10.0 -67.0 304 26 397.3 397.3 304.9 397.4 0.01 29 100 15510 -67.3 -77.3 23 10.0 -67.4 305 25 397.7 397.7 304.9 397.7 0.01 TRP 271 9337 -61.9 -66.8 52 4.9 -61.9 280 75 306.9 306.9 284.2 306.9 0.02 WND 300 8700 -58.6 -63.4 54 4.8 -58.6 280 106 302.8 302.8 282.5 302.9 0.03 Sounding variables and indices 1000-500 mb thick: 5216.00 m Freezing level: 990.82 mb = 149.80 m = 491.45 ft Wetbulb zero: Below ground Precipitable water: 0.21 inches Sfc-500 mean rel hum: 48.67 % Est. max temperature: 4.13 C = 39.43 F Sfc-Lift cond lev (LCL): 942.57 mb = 543.64 m = 1783.58 ft T: -3.12 C 700-500 lapse rate: 4.87 C/km ThetaE index: 2.37 C Layer 925.0- 850.0 mb Conv cond level (CCL): 827.83 mb = 1557.77 m = 5110.72 ft Mean mixing ratio: 2.10 g/kg Conv temperature: 4.85 C = 40.74 F Cap Strength: 13.76 C Lifted Index: 13.42 C Risk: None Lifted Index @300 mb: 15.99 C Lifted Index @700 mb: 4.18 C Showalter Index: 13.80 C Risk: None Total Totals Index: 32.80 C Risk: None Vertical Totals Index: 21.40 C Cross Totals Index: 11.40 C K Index: -12.50 Risk: None Sweat Index: 137.00 Risk: None Energy Index: 3.68 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.16 J/kg Max Up Vert Vel: 2.89 m/s Conv Inhibition (B-): 15203.44 J/kg Cap Strength: 13.64 C Lift Cond Lev (LCL): 865.93 mb = 1209.46 m = 3968.00 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 298 at 34 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 1008 10 250 9 8.5 3.1 | 132 29 -21.8 19.4 1 1000 74 245 13 11.8 5.5 | 140 29 -18.5 21.8 2 925 693 270 27 27.0 -0.0 | 169 17 -3.3 16.3 3 850 1354 260 33 32.5 5.7 | 186 22 2.2 22.1 4 700 2828 270 38 38.0 -0.0 | 205 18 7.7 16.3 5 500 5290 270 71 71.0 -0.0 | 248 44 40.7 16.3 6 400 6840 270 83 83.0 -0.0 | 253 55 52.7 16.3 7 300 8700 280 106 104.4 -18.4 | 272 74 74.1 -2.1 8 271 9337 280 75 73.9 -13.0 | 266 44 43.6 3.3 9 250 9840 275 44 43.8 -3.8 | 227 18 13.6 12.5 10 200 11240 355 5 0.4 -5.0 | 111 32 -29.8 11.3 11 150 13040 275 68 67.7 -5.9 | 254 39 37.5 10.4 12 100 15510 305 25 20.5 -14.3 | 102 10 -9.8 2.0 Wind Parameters Mean winds (0-6000m): 268.4 at 45.8 knts Storm direction: 298.4 at 34.4 knts Shear (0-3000m) pos: 5.0 neg: 0.7 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 80.3 deg Storm rel helicity (0-3000m) pos: 174.9 neg: 0.0 tot: 174.9 m^2/s^2 ave: 58.3 10^-3 m/s^2 rel: 0.78 Storm rel vorticity (0-3000m) horiz: 6.6 stream: 5.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.04 Bulk Shear: 114.90 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 ------------------------------------------------------------------------------- 500 255 17 146 25| 14.6 0.0 14.6| 83.7 0.0 83.7 167.5 0.79| 15.8 12.5 1000 264 22 156 20| 11.0 0.0 11.0|114.3 0.0 114.3 114.3 0.77| 12.4 9.5 1500 263 25 165 20| 7.3 1.5 8.8|132.1 0.0 132.1 88.0 0.75| 9.9 7.5 2000 263 28 172 20| 6.0 1.1 7.1|144.5 0.0 144.5 72.3 0.76| 8.1 6.2 2500 264 29 177 20| 5.2 0.9 6.1|156.7 0.0 156.7 62.7 0.77| 7.1 5.4 3000 265 31 181 19| 5.0 0.7 5.7|174.9 0.0 174.9 58.3 0.78| 6.6 5.1 4000 267 35 194 19| 3.8 2.2 5.9|232.8 0.0 232.8 58.2 0.76| 6.7 5.1 5000 268 40 209 21| 3.0 3.1 6.1|290.7 0.0 290.7 58.1 0.70| 6.7 4.7 6000 268 46 221 24| 2.5 3.4 5.9|331.0 0.0 331.0 55.2 0.66| 6.4 4.2 Wrote GIF file: /home/apache/climate/data/raob//U2271/skewt/U2271.skewt.20251201.12.gif