UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 18 OCT 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 1002 113 -1.1 -2.7 89 1.6 -1.7 270 3 271.9 272.4 271.4 280.4 3.12 1 1000 129 0.2 -0.5 95 0.7 -0.1 275 3 273.4 274.0 273.1 283.3 3.68 2 994 177 1.4 0.5 94 0.9 1.0 280 3 275.0 275.7 274.5 285.9 3.99 3 980 292 1.8 -0.9 82 2.7 0.7 292 5 276.5 277.2 274.9 286.6 3.65 4 925 754 -1.9 -7.9 63 6.0 -4.0 340 9 277.4 277.8 273.3 283.8 2.28 5 887 1087 -3.3 -12.3 50 9.0 -6.0 320 11 279.3 279.5 273.5 284.1 1.67 6 882 1131 -3.7 -13.7 46 10.0 -6.6 317 11 279.3 279.6 273.2 283.7 1.50 7 850 1422 -6.1 -16.1 45 10.0 -8.8 300 13 279.8 280.0 273.2 283.5 1.28 8 766 2226 -12.9 -19.9 56 7.0 -14.5 305 16 280.9 281.0 273.4 283.9 1.03 9 757 2316 -13.3 -19.3 61 6.0 -14.6 306 17 281.4 281.6 273.8 284.6 1.10 10 729 2603 -14.3 -23.3 46 9.0 -16.1 308 18 283.3 283.5 274.4 285.8 0.80 11 700 2911 -13.7 -26.7 33 13.0 -16.1 310 19 287.3 287.4 276.3 289.2 0.61 12 678 3153 -14.3 -31.3 22 17.0 -17.1 309 20 289.3 289.4 277.0 290.6 0.41 13 676 3176 -14.5 -31.5 22 17.0 -17.2 309 20 289.3 289.4 277.0 290.6 0.41 14 574 4395 -22.7 -38.7 22 16.0 -24.5 304 23 293.5 293.6 278.8 294.3 0.23 15 500 5390 -31.3 -40.3 41 9.0 -32.0 300 25 294.9 294.9 279.4 295.6 0.23 16 487 5575 -32.7 -40.7 45 8.0 -33.3 298 25 295.4 295.4 279.6 296.1 0.22 17 472 5794 -34.1 -42.1 44 8.0 -34.7 296 26 296.3 296.3 280.0 297.0 0.20 18 436 6344 -37.3 -45.3 43 8.0 -37.8 291 26 299.0 299.1 281.1 299.6 0.15 19 400 6930 -42.5 -51.5 37 9.0 -42.9 285 27 299.8 299.8 281.4 300.1 0.08 20 384 7205 -44.9 -53.9 36 9.0 -45.2 286 26 300.1 300.1 281.5 300.4 0.07 21 300 8820 -55.3 -63.3 36 8.0 -55.4 290 23 307.4 307.4 284.4 307.5 0.03 22 285 9146 -56.9 -63.9 41 7.0 -57.0 285 23 309.6 309.7 285.2 309.7 0.02 23 272 9441 -56.7 -63.7 41 7.0 -56.8 285 23 314.1 314.1 286.8 314.2 0.03 24 250 9980 -52.5 -59.5 43 7.0 -52.7 285 23 328.0 328.0 291.2 328.2 0.05 25 200 11430 -51.7 -61.7 29 10.0 -52.0 285 19 350.9 350.9 296.8 351.1 0.05 26 150 13300 -50.9 -65.9 15 15.0 -51.4 290 25 382.4 382.4 302.6 382.5 0.04 27 127 14378 -51.1 -68.1 11 17.0 -51.7 282 20 400.6 400.7 305.3 400.8 0.03 28 100 15920 -52.7 -71.7 8 19.0 -53.4 270 13 425.9 425.9 308.4 426.0 0.02 29 98 16050 -52.3 -71.3 8 19.0 -53.0 271 13 429.1 429.2 308.7 429.3 0.03 30 70 18200 -57.3 -78.3 5 21.0 -57.9 285 11 461.8 461.8 312.0 461.9 0.01 31 55 19722 -59.9 -80.9 5 21.0 -60.4 292 11 488.8 488.8 314.1 488.9 0.01 32 50 20320 -59.9 -80.9 5 21.0 -60.4 295 11 502.3 502.3 315.1 502.4 0.01 33 40 21714 -58.9 -79.9 5 21.0 -59.7 295 14 537.9 537.9 317.4 538.0 0.02 34 31 23298 -62.3 -83.3 4 21.0 -63.0 295 18 569.4 569.4 319.1 569.5 0.01 35 30 23500 -61.7 -83.7 4 22.0 -62.4 295 19 576.4 576.4 319.5 576.5 0.01 36 26 24389 -58.9 -80.9 4 22.0 -60.0 290 21 608.5 608.5 321.0 608.6 0.02 37 22 25428 -61.5 -83.5 4 22.0 -62.5 284 24 630.5 630.5 321.9 630.6 0.02 38 20 26020 -59.7 -81.7 4 22.0 -61.0 280 25 653.4 653.4 322.8 653.6 0.03 39 15 27825 -58.1 -81.1 4 23.0 -60.1 714.8 714.8 324.9 715.1 0.04 TRP 285 9146 -56.9 -63.9 41 7.0 -57.0 285 23 309.6 309.7 285.2 309.7 0.02 WND Sounding variables and indices 1000-500 mb thick: 5261.00 m Freezing level: Surface below freezing Freezing level: 1000.31 mb = 126.54 m = 415.17 ft Freezing level: 953.24 mb = 516.54 m = 1694.67 ft Wetbulb zero: Below ground Precipitable water: 0.25 inches Sfc-500 mean rel hum: 41.62 % Est. max temperature: 6.74 C = 44.13 F Sfc-Lift cond lev (LCL): 977.09 mb = 315.39 m = 1034.74 ft T: 1.61 C 700-500 lapse rate: 7.10 C/km ThetaE index: 2.79 C Layer 925.0- 887.0 mb Conv cond level (CCL): 855.50 mb = 1371.28 m = 4498.90 ft Mean mixing ratio: 2.93 g/kg Conv temperature: 6.69 C = 44.04 F Cap Strength: 8.69 C Lifted Index: 8.82 C Risk: None Lifted Index @300 mb: 15.99 C Lifted Index @700 mb: 5.38 C Showalter Index: 9.87 C Risk: None Total Totals Index: 40.40 C Risk: None Vertical Totals Index: 25.20 C Cross Totals Index: 15.20 C K Index: -3.90 Risk: None Sweat Index: 51.00 Risk: None Energy Index: 2.58 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.99 J/kg Max Up Vert Vel: 4.69 m/s Conv Inhibition (B-): 50611.04 J/kg Cap Strength: 8.80 C Lift Cond Lev (LCL): 893.67 mb = 1027.34 m = 3370.48 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 335 at 14 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 1002 113 270 3 3.0 -0.0 | 167 13 -2.8 12.3 1 1000 129 275 3 3.0 -0.3 | 167 12 -2.9 12.0 2 925 754 340 9 3.1 -8.5 | 144 5 -2.8 3.9 3 850 1422 300 13 11.3 -6.5 | 223 8 5.4 5.8 4 700 2911 310 19 14.6 -12.2 | 269 9 8.7 0.1 5 500 5390 300 25 21.7 -12.5 | 271 16 15.8 -0.2 6 400 6930 285 27 26.1 -7.0 | 255 21 20.2 5.3 7 300 8820 290 23 21.6 -7.9 | 254 16 15.8 4.4 8 285 9146 285 23 22.2 -6.0 | 249 18 16.4 6.4 9 250 9980 285 23 22.2 -6.0 | 249 18 16.4 6.4 10 200 11430 285 19 18.4 -4.9 | 239 15 12.5 7.4 11 150 13300 290 25 23.5 -8.6 | 258 18 17.6 3.8 12 100 15920 270 13 13.0 -0.0 | 210 14 7.2 12.3 13 70 18200 285 11 10.6 -2.8 | 207 11 4.8 9.5 14 50 20320 295 11 10.0 -4.6 | 208 9 4.1 7.7 15 30 23500 295 19 17.2 -8.0 | 249 12 11.4 4.3 16 20 26020 280 25 24.6 -4.3 | 247 20 18.8 8.0 Wind Parameters Mean winds (0-6000m): 304.6 at 18.2 knts Storm direction: 334.6 at 13.6 knts Shear (0-3000m) pos: 2.1 neg: 1.3 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 103.0 deg Storm rel helicity (0-3000m) pos: 24.1 neg: -3.8 tot: 20.3 m^2/s^2 ave: 6.8 10^-3 m/s^2 rel: 0.45 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 1.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.49 Bulk Shear: 22.26 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 ------------------------------------------------------------------------------- 500 311 5 168 9| 6.6 0.0 6.6| 3.5 -1.6 1.8 3.6 0.04| 7.0 0.3 1000 326 7 164 6| 3.3 1.9 5.2| 7.0 -3.8 3.2 3.2 0.17| 6.7 1.2 1500 315 9 185 6| 2.2 2.6 4.8| 11.7 -3.8 8.0 5.3 0.29| 6.2 1.8 2000 311 11 201 6| 2.2 1.9 4.1| 16.3 -3.8 12.5 6.2 0.36| 5.2 1.9 2500 310 12 214 6| 2.2 1.5 3.7| 20.9 -3.8 17.2 6.9 0.42| 4.6 2.0 3000 310 13 226 6| 2.1 1.3 3.4| 24.1 -3.8 20.3 6.8 0.45| 4.2 1.9 4000 309 15 243 6| 1.6 1.3 2.9| 24.8 -3.8 21.0 5.3 0.41| 3.5 1.4 5000 307 17 253 8| 1.3 1.4 2.6| 24.8 -4.2 20.6 4.1 0.37| 3.1 1.1 6000 305 18 258 9| 1.1 1.4 2.5| 24.8 -14.7 10.1 1.7 0.26| 2.9 0.8 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251018.00.gif