UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011812.upa.cvt Date: 1200Z 18 JAN 26 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 18 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 1018 105 -0.5 -2.1 89 1.6 -1.1 250 7 271.3 271.8 271.1 279.9 3.21 1 1000 247 -1.5 -3.6 86 2.1 -2.3 265 11 271.6 272.1 270.9 279.6 2.92 2 925 865 -4.9 -6.7 87 1.8 -5.5 315 27 274.3 274.7 271.8 281.2 2.50 3 912 976 -5.9 -7.7 87 1.8 -6.5 317 29 274.4 274.8 271.6 280.9 2.34 4 905 1037 -5.1 -6.9 87 1.8 -5.7 318 29 275.8 276.2 272.8 282.8 2.51 5 895 1124 -3.9 -5.8 87 1.9 -4.6 319 31 277.9 278.4 274.4 285.7 2.77 6 892 1151 -4.1 -6.5 83 2.4 -5.0 319 31 278.0 278.4 274.2 285.4 2.63 7 877 1285 -2.1 -8.1 63 6.0 -4.2 321 33 281.4 281.8 275.7 288.2 2.36 8 850 1533 -2.7 -13.7 42 11.0 -6.0 325 36 283.3 283.6 275.6 287.9 1.56 9 836 1664 -3.5 -17.5 33 14.0 -7.3 325 36 283.8 284.0 275.2 287.3 1.16 10 829 1731 -3.5 -17.5 33 14.0 -7.3 324 37 284.5 284.7 275.6 288.0 1.17 11 748 2534 -9.3 -19.3 44 10.0 -11.8 322 39 286.7 286.9 276.7 290.1 1.11 12 700 3044 -12.1 -28.1 25 16.0 -15.1 320 40 289.1 289.2 277.0 290.8 0.54 13 614 4032 -19.3 -43.3 10 24.0 -21.8 318 44 291.9 291.9 277.8 292.3 0.14 14 612 4056 -19.7 -44.7 9 25.0 -22.2 318 44 291.7 291.7 277.7 292.1 0.12 15 573 4540 -25.1 -45.1 14 20.0 -26.8 317 46 290.9 290.9 277.3 291.3 0.12 16 531 5090 -27.1 -49.1 11 22.0 -28.6 316 48 294.9 294.9 279.1 295.2 0.08 17 500 5520 -31.3 -53.3 10 22.0 -32.5 315 50 294.9 294.9 279.1 295.1 0.05 18 442 6381 -38.7 -55.7 15 17.0 -39.3 309 54 296.1 296.1 279.7 296.3 0.05 19 407 6943 -42.3 -57.3 18 15.0 -42.8 306 57 298.5 298.5 280.7 298.7 0.04 20 400 7060 -44.1 -59.1 17 15.0 -44.5 305 58 297.7 297.7 280.4 297.8 0.03 21 397 7110 -45.1 -59.1 19 14.0 -45.4 305 58 297.0 297.0 280.1 297.1 0.03 22 355 7847 -49.7 -62.7 20 13.0 -49.9 305 58 300.5 300.5 281.5 300.6 0.02 23 349 7958 -52.1 -64.1 22 12.0 -52.3 305 58 298.7 298.7 280.8 298.8 0.02 24 305 8816 -58.1 -69.1 23 11.0 -58.2 305 58 302.0 302.0 282.2 302.1 0.01 25 300 8920 -57.7 -68.7 23 11.0 -57.8 305 58 304.0 304.0 283.0 304.1 0.01 26 289 9154 -57.8 -68.8 23 11.0 -57.9 305 62 307.2 307.2 284.2 307.2 0.01 27 271 9557 -57.9 -68.9 23 11.0 -58.0 303 60 312.7 312.7 286.3 312.7 0.01 28 263 9745 -58.7 -69.7 23 11.0 -58.8 302 59 314.2 314.2 286.8 314.3 0.01 29 250 10060 -60.3 -71.3 22 11.0 -60.4 300 58 316.4 316.4 287.6 316.5 0.01 30 241 10289 -61.3 -72.3 22 11.0 -61.4 305 56 318.3 318.3 288.2 318.3 0.01 31 200 11460 -58.7 -70.7 20 12.0 -58.9 295 48 339.8 339.8 294.3 339.9 0.01 32 198 11523 -58.3 -70.3 20 12.0 -58.5 295 48 341.4 341.4 294.7 341.5 0.01 33 150 13250 -60.1 -74.1 14 14.0 -60.3 300 36 366.5 366.5 299.9 366.6 0.01 34 125 14380 -64.7 -78.7 13 14.0 -64.8 291 35 377.8 377.8 301.9 377.9 0.01 35 100 15740 -66.7 -81.7 10 15.0 -66.8 280 33 398.9 398.9 305.0 398.9 0.01 36 70 17880 -69.9 -85.9 8 16.0 -70.0 280 42 434.8 434.8 309.3 434.9 0.00 37 50 19860 -74.3 -90.3 7 16.0 -74.4 270 50 468.4 468.4 312.5 468.4 0.00 38 49 19978 -74.5 -90.5 7 16.0 -74.6 270 51 470.6 470.6 312.7 470.7 0.00 39 36 21765 -75.9 -91.9 6 16.0 -76.0 273 66 510.4 510.4 315.7 510.4 0.00 40 32 22451 -72.7 -88.7 7 16.0 -72.9 274 72 536.5 536.5 317.3 536.5 0.00 41 30 22830 -72.7 -88.7 7 16.0 -72.9 275 75 546.4 546.5 317.9 546.5 0.00 42 26 23670 -72.7 -88.7 7 16.0 -72.9 569.3 569.3 319.1 569.3 0.01 TRP 241 10289 -61.3 -72.3 22 11.0 -61.4 305 56 318.3 318.3 288.2 318.3 0.01 WND 289 9154 -57.8 -68.8 23 11.0 -57.9 305 62 307.2 307.2 284.2 307.2 0.01 Sounding variables and indices 1000-500 mb thick: 5273.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.26 inches Sfc-500 mean rel hum: 36.72 % Est. max temperature: 10.34 C = 50.60 F Sfc-Lift cond lev (LCL): 992.74 mb = 304.79 m = 999.94 ft T: -1.82 C 700-500 lapse rate: 7.75 C/km ThetaE index: 0.89 C Layer 850.0- 829.0 mb Conv cond level (CCL): 916.27 mb = 939.47 m = 3082.21 ft Mean mixing ratio: 2.75 g/kg Conv temperature: 2.61 C = 36.70 F Cap Strength: 12.72 C Lifted Index: 12.33 C Risk: None Lifted Index @300 mb: 16.81 C Lifted Index @700 mb: 10.32 C Showalter Index: 6.50 C Risk: None Total Totals Index: 46.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 28.60 C Cross Totals Index: 17.60 C K Index: -1.10 Risk: None Sweat Index: 122.00 Risk: None Energy Index: 1.54 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.56 J/kg Max Up Vert Vel: 4.14 m/s Conv Inhibition (B-): 40880.52 J/kg Cap Strength: 12.72 C Lift Cond Lev (LCL): 938.30 mb = 751.83 m = 2466.62 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 347 at 29 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 1018 105 250 7 6.6 2.4 | 180 31 0.1 31.0 1 1000 247 265 11 11.0 1.0 | 189 30 4.5 29.6 2 925 865 315 27 19.1 -19.1 | 233 16 12.6 9.5 3 850 1533 325 36 20.6 -29.5 | 274 14 14.2 -0.9 4 700 3044 320 40 25.7 -30.6 | 276 19 19.2 -2.0 5 500 5520 315 50 35.4 -35.4 | 283 30 28.9 -6.7 6 400 7060 305 58 47.5 -33.3 | 276 41 41.0 -4.7 7 300 8920 305 58 47.5 -33.3 | 276 41 41.0 -4.7 8 289 9154 305 62 50.8 -35.6 | 279 45 44.3 -7.0 9 250 10060 300 58 50.2 -29.0 | 271 44 43.8 -0.4 10 241 10289 305 56 45.9 -32.1 | 275 40 39.4 -3.5 11 200 11460 295 48 43.5 -20.3 | 257 38 37.0 8.3 12 150 13250 300 36 31.2 -18.0 | 247 27 24.7 10.6 13 100 15740 280 33 32.5 -5.7 | 229 35 26.0 22.9 14 70 17880 280 42 41.4 -7.3 | 239 41 34.9 21.3 15 50 19860 270 50 50.0 -0.0 | 237 52 43.5 28.6 16 30 22830 275 75 74.7 -6.5 | 252 72 68.2 22.1 Wind Parameters Mean winds (0-6000m): 317.2 at 39.1 knts Storm direction: 347.2 at 29.3 knts Shear (0-3000m) pos: 6.0 neg: 0.9 tot: 6.9 10-3/s Storm rel Dir Shear (0-3000m): 96.2 deg Storm rel helicity (0-3000m) pos: 194.8 neg: 0.0 tot: 194.8 m^2/s^2 ave: 64.9 10^-3 m/s^2 rel: 0.77 Storm rel vorticity (0-3000m) horiz: 7.5 stream: 5.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.07 Bulk Shear: 115.38 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 ------------------------------------------------------------------------------- 500 279 14 195 27| 16.4 0.0 16.4|111.0 0.0 111.0 221.9 0.88| 17.3 15.3 1000 304 20 210 20| 14.6 0.0 14.6|165.5 0.0 165.5 165.5 0.83| 16.2 13.4 1500 313 24 224 16| 12.0 0.0 12.0|191.5 0.0 191.5 127.7 0.86| 13.2 11.3 2000 317 27 235 15| 9.0 0.4 9.4|192.8 0.0 192.8 96.4 0.83| 10.3 8.6 2500 318 30 244 15| 7.2 0.7 7.9|193.7 0.0 193.7 77.5 0.80| 8.6 6.9 3000 319 31 251 15| 6.0 0.9 6.9|194.8 0.0 194.8 64.9 0.77| 7.5 5.8 4000 319 34 259 16| 4.5 1.2 5.7|203.2 0.0 203.2 50.8 0.73| 6.2 4.5 5000 318 37 266 18| 3.6 1.4 5.0|210.0 0.0 210.0 42.0 0.69| 5.4 3.7 6000 317 39 270 20| 3.0 1.7 4.7|212.1 -11.3 200.8 33.5 0.60| 5.0 3.0 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20260118.12.gif