UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120212.upa.cvt Date: 1200Z 2 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 2 DEC 25 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 1004 110 3.8 2.0 88 1.8 3.0 250 5 276.6 277.4 275.9 288.6 4.40 1 1000 142 3.4 1.5 87 1.9 2.5 250 7 276.5 277.3 275.7 288.2 4.26 2 925 770 -0.7 -2.8 86 2.1 -1.5 265 27 278.6 279.2 275.6 287.9 3.36 3 885 1122 -3.1 -4.4 91 1.3 -3.6 270 26 279.7 280.2 275.8 288.4 3.11 4 874 1221 -2.9 -4.2 91 1.3 -3.4 272 26 280.9 281.4 276.6 289.9 3.20 5 850 1442 -1.9 -5.5 76 3.6 -3.3 275 25 284.2 284.7 278.0 292.7 2.98 6 835 1583 -2.1 -9.1 59 7.0 -4.6 273 25 285.4 285.8 277.7 292.1 2.30 7 814 1785 -3.1 -12.1 50 9.0 -6.0 271 25 286.4 286.7 277.6 291.9 1.85 8 700 2964 -10.1 -22.1 37 12.0 -12.9 255 27 291.3 291.5 278.7 294.2 0.93 9 697 2997 -10.3 -22.3 37 12.0 -13.1 255 27 291.4 291.6 278.7 294.3 0.92 10 692 3053 -10.3 -22.3 37 12.0 -13.1 256 28 292.0 292.2 279.0 294.9 0.92 11 661 3405 -10.5 -38.5 8 28.0 -14.8 260 30 295.7 295.7 279.7 296.4 0.21 12 632 3750 -11.7 -45.7 4 34.0 -16.0 264 33 298.1 298.1 280.7 298.5 0.10 13 591 4260 -15.9 -38.9 12 23.0 -19.1 270 37 299.0 299.0 281.3 299.8 0.22 14 571 4518 -18.5 -26.5 49 8.0 -20.0 273 39 298.9 299.1 281.9 301.4 0.77 15 559 4676 -18.1 -24.1 59 6.0 -19.4 275 40 301.2 301.4 283.1 304.4 0.97 16 555 4730 -18.9 -23.6 66 4.7 -19.9 276 40 300.9 301.1 283.1 304.2 1.03 17 500 5500 -23.7 -26.3 79 2.6 -24.2 285 46 304.1 304.3 284.2 307.1 0.89 18 489 5661 -24.7 -27.6 77 2.9 -25.2 286 46 304.9 305.0 284.4 307.5 0.81 19 456 6163 -28.9 -33.8 63 4.9 -29.5 291 44 305.8 305.8 284.3 307.4 0.48 20 407 6960 -35.9 -43.9 44 8.0 -36.5 299 42 306.8 306.8 284.4 307.5 0.19 21 400 7080 -36.9 -43.9 48 7.0 -37.4 300 42 307.0 307.1 284.5 307.7 0.19 22 330 8379 -48.3 -54.3 50 6.0 -48.5 317 61 308.7 308.8 284.9 309.0 0.07 23 300 9000 -53.1 -58.1 54 5.0 -53.2 325 71 310.5 310.5 285.6 310.7 0.05 24 287 9282 -55.5 -60.5 54 5.0 -55.6 322 73 311.0 311.0 285.7 311.2 0.04 25 282 9393 -58.1 -63.1 53 5.0 -58.2 321 74 308.9 308.9 284.9 309.0 0.03 26 277 9505 -58.8 -63.8 52 5.0 -58.9 320 75 309.5 309.5 285.1 309.6 0.03 27 250 10140 -62.7 -67.7 51 5.0 -62.7 325 73 312.9 312.9 286.4 312.9 0.02 28 236 10494 -63.7 -68.6 51 4.9 -63.7 325 69 316.5 316.5 287.6 316.6 0.02 29 232 10599 -63.7 -68.6 51 4.9 -63.7 322 66 318.1 318.1 288.1 318.2 0.02 30 225 10788 -62.1 -67.0 52 4.9 -62.1 318 61 323.3 323.3 289.8 323.4 0.02 31 200 11520 -59.9 -64.7 53 4.8 -60.0 300 42 337.9 337.9 293.9 338.0 0.03 32 196 11646 -59.1 -64.0 53 4.9 -59.2 299 42 341.1 341.1 294.6 341.3 0.04 33 150 13310 -60.9 -66.9 45 6.0 -61.0 285 36 365.2 365.2 299.7 365.3 0.03 34 100 15830 -62.3 -69.3 39 7.0 -62.4 285 31 407.4 407.4 306.2 407.5 0.03 35 70 18010 -64.3 -73.3 28 9.0 -64.5 280 25 446.8 446.8 310.6 447.0 0.03 36 59 19052 -65.7 -74.7 27 9.0 -65.9 285 29 466.1 466.1 312.3 466.2 0.03 37 50 20050 -68.9 -78.9 22 10.0 -69.1 290 33 481.1 481.1 313.5 481.2 0.02 38 45 20677 -71.3 -80.3 25 9.0 -71.4 490.0 490.0 314.2 490.1 0.01 39 33 22500 -73.5 -83.5 20 10.0 -73.6 529.6 529.6 316.9 529.7 0.01 TRP 236 10494 -63.7 -68.6 51 4.9 -63.7 325 69 316.5 316.5 287.6 316.6 0.02 WND 277 9505 -58.8 -63.8 52 5.0 -58.9 320 75 309.5 309.5 285.1 309.6 0.03 Sounding variables and indices 1000-500 mb thick: 5358.00 m Freezing level: 937.80 mb = 662.78 m = 2174.45 ft Wetbulb zero: 953.23 mb = 527.81 m = 1731.65 ft Precipitable water: 0.39 inches Sfc-500 mean rel hum: 51.75 % Est. max temperature: 10.77 C = 51.39 F Sfc-Lift cond lev (LCL): 976.40 mb = 334.38 m = 1097.03 ft T: 2.14 C 700-500 lapse rate: 5.36 C/km ThetaE index: 0.79 C Layer 835.0- 700.0 mb Conv cond level (CCL): 907.97 mb = 917.87 m = 3011.36 ft Mean mixing ratio: 3.72 g/kg Conv temperature: 6.21 C = 43.18 F Cap Strength: 12.52 C Lifted Index: 13.96 C Risk: None Lifted Index @300 mb: 15.93 C Lifted Index @700 mb: 6.81 C Showalter Index: 10.50 C Risk: None Total Totals Index: 40.00 C Risk: None Vertical Totals Index: 21.80 C Cross Totals Index: 18.20 C K Index: 4.30 Risk: None Sweat Index: 96.00 Risk: None Energy Index: 2.98 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 7.13 J/kg Max Up Vert Vel: 3.78 m/s Conv Inhibition (B-): 36413.69 J/kg Cap Strength: 13.82 C Lift Cond Lev (LCL): 924.94 mb = 770.49 m = 2527.83 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 303 at 24 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 1004 110 250 5 4.7 1.7 | 134 21 -15.1 14.6 1 1000 142 250 7 6.6 2.4 | 139 20 -13.2 15.3 2 925 770 265 27 26.9 2.4 | 205 17 7.1 15.3 3 850 1442 275 25 24.9 -2.2 | 205 12 5.1 10.7 4 700 2964 255 27 26.1 7.0 | 197 21 6.3 19.9 5 500 5500 285 46 44.4 -11.9 | 268 25 24.6 1.0 6 400 7080 300 42 36.4 -21.0 | 296 18 16.6 -8.1 7 300 9000 325 71 40.7 -58.2 | 335 50 20.9 -45.3 8 277 9505 320 75 48.2 -57.5 | 327 53 28.4 -44.6 9 250 10140 325 73 41.9 -59.8 | 335 52 22.1 -46.9 10 236 10494 325 69 39.6 -56.5 | 336 48 19.8 -43.6 11 200 11520 300 42 36.4 -21.0 | 296 18 16.6 -8.1 12 150 13310 285 36 34.8 -9.3 | 257 15 15.0 3.6 13 100 15830 285 31 29.9 -8.0 | 244 11 10.1 4.9 14 70 18010 280 25 24.6 -4.3 | 209 10 4.8 8.6 15 50 20050 290 33 31.0 -11.3 | 262 11 11.2 1.6 Wind Parameters Mean winds (0-6000m): 273.1 at 31.5 knts Storm direction: 303.1 at 23.6 knts Shear (0-3000m) pos: 3.5 neg: 1.4 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 67.2 deg Storm rel helicity (0-3000m) pos: 108.7 neg: -9.9 tot: 98.7 m^2/s^2 ave: 32.9 10^-3 m/s^2 rel: 0.56 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 3.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.16 Bulk Shear: 44.97 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 ------------------------------------------------------------------------------- 500 258 14 158 17| 17.5 0.0 17.5| 77.9 0.0 77.9 155.7 0.95| 17.7 16.9 1000 264 20 180 15| 11.0 0.0 11.0|101.8 0.0 101.8 101.8 0.88| 12.8 11.3 1500 268 22 188 14| 7.1 0.0 7.1|101.8 -0.7 101.1 67.4 0.78| 9.5 7.5 2000 268 23 192 14| 5.3 0.8 6.1|101.8 -2.9 98.9 49.4 0.69| 7.9 5.4 2500 267 23 194 15| 4.3 1.2 5.5|101.8 -6.8 95.1 38.0 0.60| 7.0 4.2 3000 265 24 195 16| 3.5 1.4 4.9|108.7 -9.9 98.7 32.9 0.56| 6.4 3.6 4000 265 26 201 16| 3.9 1.0 4.9|163.3 -9.9 153.3 38.3 0.66| 6.1 4.0 5000 268 29 213 16| 4.1 0.8 4.9|225.8 -9.9 215.8 43.2 0.72| 6.0 4.3 6000 273 32 226 16| 3.7 0.7 4.4|278.0 -9.9 268.0 44.7 0.74| 5.8 4.3 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251202.12.gif