UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026012000.upa.cvt Date: 0000Z 20 JAN 26 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 20 JAN 26 Station: U2820 WMO ident: 22820 Latitude: 61.82 Longitude: 34.27 ------------------------------------------------------------------------------- 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 1014 106 -5.1 -6.0 93 0.9 -5.4 270 5 267.0 267.4 267.0 273.4 2.40 1 1012 122 -5.5 -9.9 71 4.4 -6.7 271 5 266.7 267.0 265.7 271.6 1.78 2 1000 215 -6.5 -10.2 75 3.7 -7.5 275 7 266.6 266.9 265.6 271.4 1.76 3 980 373 -5.5 -8.4 80 2.9 -6.4 291 10 269.2 269.5 267.9 274.8 2.07 4 978 390 -3.1 -5.9 81 2.8 -4.1 292 10 271.8 272.2 270.3 278.6 2.51 5 965 496 -1.9 -4.1 85 2.2 -2.7 302 12 274.0 274.5 272.3 282.0 2.92 6 943 680 -1.7 -5.1 78 3.4 -2.9 320 16 276.0 276.5 273.3 283.7 2.77 7 925 833 -2.3 -6.7 72 4.4 -3.8 335 19 277.0 277.4 273.4 283.9 2.50 8 850 1500 -6.7 -11.6 68 4.9 -8.2 345 19 279.1 279.4 273.7 284.4 1.85 9 823 1751 -7.9 -13.9 62 6.0 -9.6 344 20 280.4 280.7 274.0 285.0 1.58 10 700 2986 -17.1 -23.1 60 6.0 -18.2 340 27 283.5 283.7 274.6 286.1 0.85 11 668 3336 -19.7 -25.7 59 6.0 -20.7 340 29 284.5 284.6 274.9 286.6 0.71 12 609 4019 -23.3 -32.3 43 9.0 -24.5 340 32 287.9 288.0 276.3 289.3 0.42 13 500 5440 -31.9 -36.8 62 4.9 -32.4 340 38 294.1 294.2 279.2 295.2 0.33 14 476 5785 -34.1 -38.8 62 4.7 -34.5 340 39 295.6 295.6 279.8 296.5 0.28 15 471 5859 -34.3 -39.0 62 4.7 -34.7 340 40 296.2 296.3 280.1 297.2 0.28 16 400 6980 -42.3 -47.2 59 4.9 -42.5 340 44 300.0 300.0 281.5 300.5 0.14 17 384 7255 -43.9 -48.8 58 4.9 -44.1 341 45 301.4 301.5 282.1 301.9 0.12 18 371 7484 -46.7 -51.5 58 4.8 -46.9 343 46 300.7 300.7 281.8 301.0 0.09 19 314 8570 -54.9 -59.6 56 4.7 -55.0 348 51 304.0 304.0 283.0 304.1 0.04 20 300 8860 -56.3 -61.1 55 4.8 -56.3 350 52 306.0 306.0 283.8 306.1 0.03 21 255 9878 -62.7 -67.7 51 5.0 -62.7 330 56 311.1 311.1 285.7 311.1 0.02 22 250 10000 -62.7 -67.7 51 5.0 -62.7 330 56 312.9 312.9 286.4 312.9 0.02 23 231 10486 -63.7 -68.6 51 4.9 -63.7 335 50 318.5 318.5 288.3 318.5 0.02 24 200 11370 -63.5 -68.5 51 5.0 -63.6 345 40 332.2 332.2 292.3 332.3 0.02 25 179 12049 -63.5 -68.5 51 5.0 -63.6 347 38 342.9 342.9 295.0 343.0 0.02 26 150 13130 -63.9 -68.9 50 5.0 -64.0 350 36 360.0 360.0 298.7 360.1 0.02 27 136 13730 -64.3 -70.3 44 6.0 -64.4 369.5 369.5 300.5 369.6 0.02 TRP 255 9878 -62.7 -67.7 51 5.0 -62.7 330 56 311.1 311.1 285.7 311.1 0.02 WND Sounding variables and indices 1000-500 mb thick: 5225.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.28 inches Sfc-500 mean rel hum: 60.70 % Est. max temperature: 6.67 C = 44.01 F Sfc-Lift cond lev (LCL): 999.47 mb = 219.16 m = 719.02 ft T: -6.47 C 700-500 lapse rate: 6.03 C/km ThetaE index: 2.00 C Layer 1012.0- 980.0 mb Conv cond level (CCL): 1004.88 mb = 176.93 m = 580.47 ft Mean mixing ratio: 2.41 g/kg Conv temperature: -5.40 C = 22.28 F Cap Strength: 8.61 C Lifted Index: 12.55 C Risk: None Lifted Index @300 mb: 18.91 C Lifted Index @700 mb: 6.08 C Showalter Index: 8.57 C Risk: None Total Totals Index: 45.50 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.20 C Cross Totals Index: 20.30 C K Index: 7.60 Risk: None Sweat Index: 76.00 Risk: None Energy Index: 2.23 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 52.76 J/kg Max Up Vert Vel: 10.27 m/s Conv Inhibition (B-): 10335.84 J/kg Cap Strength: 12.38 C Lift Cond Lev (LCL): 914.72 mb = 921.15 m = 3022.12 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 9 at 20 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 1014 106 270 5 5.0 -0.0 | 202 22 8.3 20.1 1 1000 215 275 7 7.0 -0.6 | 208 22 10.3 19.5 2 925 833 335 19 8.0 -17.2 | 256 12 11.4 2.9 3 850 1500 345 19 4.9 -18.4 | 258 8 8.2 1.7 4 700 2986 340 27 9.2 -25.4 | 293 14 12.6 -5.3 5 500 5440 340 38 13.0 -35.7 | 314 23 16.3 -15.6 6 400 6980 340 44 15.0 -41.3 | 319 28 18.4 -21.3 7 300 8860 350 52 9.0 -51.2 | 338 33 12.4 -31.1 8 255 9878 330 56 28.0 -48.5 | 312 42 31.3 -28.4 9 250 10000 330 56 28.0 -48.5 | 312 42 31.3 -28.4 10 200 11370 345 40 10.4 -38.6 | 324 23 13.7 -18.5 11 150 13130 350 36 6.3 -35.5 | 328 18 9.6 -15.4 Wind Parameters Mean winds (0-6000m): 339.4 at 27.2 knts Storm direction: 9.4 at 20.4 knts Shear (0-3000m) pos: 3.2 neg: 1.4 tot: 4.6 10-3/s Storm rel Dir Shear (0-3000m): 91.9 deg Storm rel helicity (0-3000m) pos: 100.9 neg: 0.0 tot: 100.9 m^2/s^2 ave: 33.6 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 5.5 stream: 4.1 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.90 Bulk Shear: 58.48 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 ------------------------------------------------------------------------------- 500 297 10 217 20| 11.8 0.0 11.8| 60.7 0.0 60.7 121.4 0.90| 12.9 11.6 1000 325 14 232 14| 9.2 0.0 9.2| 82.2 0.0 82.2 82.2 0.78| 11.1 8.7 1500 332 16 239 12| 6.5 0.0 6.5| 84.0 0.0 84.0 56.0 0.73| 8.3 6.1 2000 336 17 245 11| 4.9 0.7 5.6| 89.8 0.0 89.8 44.9 0.75| 6.9 5.2 2500 338 18 253 11| 3.9 1.1 5.0| 95.5 0.0 95.5 38.2 0.74| 6.1 4.5 3000 338 20 260 11| 3.2 1.4 4.6|100.9 0.0 100.9 33.6 0.73| 5.5 4.1 4000 339 22 273 11| 2.4 1.6 4.0|112.8 0.0 112.8 28.2 0.72| 4.7 3.4 5000 339 25 284 12| 1.9 1.8 3.7|124.6 0.0 124.6 24.9 0.70| 4.3 3.0 6000 339 27 292 14| 1.6 1.8 3.4|135.5 0.0 135.5 22.6 0.67| 3.9 2.6 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20260120.00.gif