UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120400.upa.cvt Date: 0000Z 4 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 4 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 1008 108 1.2 0.0 92 1.2 0.7 250 5 273.7 274.4 273.5 284.0 3.79 1 1000 172 0.2 -1.1 91 1.3 -0.3 245 7 273.4 273.9 272.8 282.9 3.52 2 925 794 -2.7 -3.8 92 1.1 -3.1 260 23 276.5 277.1 274.1 285.2 3.12 3 856 1405 -5.5 -6.8 91 1.3 -6.0 278 21 279.8 280.3 275.3 287.4 2.68 4 852 1442 -6.3 -8.3 86 2.0 -7.0 279 21 279.4 279.8 274.6 286.1 2.40 5 850 1460 -5.9 -9.1 78 3.2 -7.0 280 21 280.0 280.3 274.8 286.4 2.25 6 837 1581 -3.7 -15.7 39 12.0 -7.1 279 21 283.5 283.7 275.3 287.5 1.34 7 829 1657 -3.5 -19.5 28 16.0 -7.7 278 20 284.5 284.7 275.3 287.5 0.98 8 815 1792 -2.3 -21.3 22 19.0 -7.2 277 20 287.2 287.3 276.6 289.8 0.86 9 744 2513 -3.5 -32.5 8 29.0 -9.3 270 17 293.4 293.5 278.9 294.6 0.33 10 736 2599 -3.5 -24.5 18 21.0 -8.7 269 17 294.4 294.5 279.8 296.6 0.71 11 720 2772 -4.7 -17.7 35 13.0 -8.5 267 16 294.9 295.1 280.9 299.0 1.32 12 700 2993 -5.1 -30.1 12 25.0 -10.4 265 15 296.8 296.9 280.6 298.3 0.45 13 696 3038 -5.1 -31.1 11 26.0 -10.5 265 15 297.3 297.4 280.7 298.7 0.41 14 673 3301 -6.3 -27.3 17 21.0 -11.1 264 17 298.9 299.0 281.7 300.8 0.60 15 592 4289 -13.3 -19.3 61 6.0 -14.9 263 22 301.9 302.1 284.0 306.4 1.40 16 515 5333 -21.1 -35.1 27 14.0 -23.1 260 28 304.7 304.8 283.8 306.0 0.38 17 500 5550 -22.9 -35.9 29 13.0 -24.6 260 29 305.1 305.2 284.0 306.4 0.36 18 472 5971 -25.5 -34.5 43 9.0 -26.7 257 30 307.0 307.0 284.7 308.5 0.43 19 439 6493 -29.5 -39.5 37 10.0 -30.5 254 30 308.3 308.4 285.1 309.3 0.28 20 400 7150 -35.3 -50.3 20 15.0 -36.2 250 31 309.1 309.1 285.1 309.5 0.10 21 395 7237 -36.1 -51.1 20 15.0 -37.0 250 31 309.2 309.2 285.1 309.5 0.09 22 361 7854 -42.3 -52.3 33 10.0 -42.7 248 31 308.9 309.0 285.0 309.3 0.08 23 300 9080 -51.3 -57.3 49 6.0 -51.4 245 31 313.0 313.1 286.5 313.3 0.06 24 297 9145 -51.9 -57.9 48 6.0 -52.0 244 31 313.1 313.1 286.5 313.3 0.05 25 250 10240 -59.7 -64.7 52 5.0 -59.7 225 33 317.3 317.3 287.9 317.4 0.03 26 235 10625 -62.7 -68.7 44 6.0 -62.7 228 34 318.4 318.4 288.2 318.5 0.02 27 200 11610 -67.5 -73.5 42 6.0 -67.5 235 35 325.9 325.9 290.5 325.9 0.01 28 192 11854 -68.9 -74.9 42 6.0 -68.9 240 36 327.4 327.4 291.0 327.5 0.01 29 170 12578 -69.3 -75.3 41 6.0 -69.4 250 36 338.4 338.4 293.9 338.4 0.01 30 158 13021 -62.5 -68.5 44 6.0 -62.6 256 35 357.1 357.1 298.1 357.2 0.02 31 150 13340 -63.5 -69.5 44 6.0 -63.6 260 35 360.7 360.7 298.8 360.8 0.02 32 134 14031 -64.9 -70.9 43 6.0 -65.0 266 33 370.0 370.0 300.6 370.1 0.02 33 127 14362 -61.7 -68.7 39 7.0 -61.8 268 33 381.5 381.5 302.5 381.7 0.03 34 108 15363 -63.3 -70.3 38 7.0 -63.4 276 30 396.6 396.6 304.8 396.7 0.03 35 104 15597 -60.9 -68.9 34 8.0 -61.1 278 30 405.5 405.5 305.9 405.7 0.03 36 100 15840 -62.1 -69.1 39 7.0 -62.3 280 29 407.7 407.8 306.2 407.9 0.03 37 84 16899 -67.5 -75.5 31 8.0 -67.6 285 30 417.6 417.6 307.4 417.7 0.02 38 75 17583 -65.1 -74.1 28 9.0 -65.3 288 31 436.4 436.4 309.5 436.5 0.02 39 70 18000 -67.1 -76.1 27 9.0 -67.2 290 31 440.8 440.8 310.0 440.9 0.02 40 50 20020 -69.9 -79.9 22 10.0 -70.0 280 29 478.8 478.8 313.4 478.8 0.01 41 30 23010 -77.5 -87.5 19 10.0 -77.6 270 36 533.4 533.4 317.1 533.4 0.01 42 20 25300 -83.1 -93.1 16 10.0 -83.1 581.8 581.8 319.8 581.8 0.00 43 18 25887 -82.9 -92.9 16 10.0 -82.9 600.2 600.2 320.6 600.2 0.00 TRP 192 11854 -68.9 -74.9 42 6.0 -68.9 240 36 327.4 327.4 291.0 327.5 0.01 WND Sounding variables and indices 1000-500 mb thick: 5378.00 m Freezing level: 994.83 mb = 214.90 m = 705.03 ft Wetbulb zero: 1002.52 mb = 151.84 m = 498.15 ft Precipitable water: 0.33 inches Sfc-500 mean rel hum: 46.28 % Est. max temperature: 7.21 C = 44.98 F Sfc-Lift cond lev (LCL): 989.24 mb = 258.35 m = 847.60 ft T: -0.20 C 700-500 lapse rate: 6.96 C/km ThetaE index: 1.24 C Layer 852.0- 850.0 mb Conv cond level (CCL): 910.71 mb = 916.66 m = 3007.37 ft Mean mixing ratio: 3.30 g/kg Conv temperature: 4.69 C = 40.44 F Cap Strength: 17.64 C Lifted Index: 17.71 C Risk: None Lifted Index @300 mb: 20.46 C Lifted Index @700 mb: 14.45 C Showalter Index: 16.05 C Risk: None Total Totals Index: 30.80 C Risk: None Vertical Totals Index: 17.00 C Cross Totals Index: 13.80 C K Index: -17.10 Risk: None Sweat Index: 71.00 Risk: None Energy Index: 4.32 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 13.94 J/kg Max Up Vert Vel: 5.28 m/s Conv Inhibition (B-): 48066.68 J/kg Cap Strength: 17.67 C Lift Cond Lev (LCL): 939.06 mb = 673.62 m = 2210.02 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 294 at 16 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 108 250 5 4.7 1.7 | 131 13 -9.5 8.1 1 1000 172 245 7 6.3 3.0 | 140 12 -7.9 9.4 2 925 794 260 23 22.7 4.0 | 219 13 8.4 10.4 3 850 1460 280 21 20.7 -3.6 | 247 7 6.5 2.8 4 700 2993 265 15 14.9 1.3 | 185 8 0.7 7.7 5 500 5550 260 29 28.6 5.0 | 231 18 14.3 11.5 6 400 7150 250 31 29.1 10.6 | 221 23 14.9 17.0 7 300 9080 245 31 28.1 13.1 | 215 24 13.9 19.5 8 250 10240 225 33 23.3 23.3 | 197 31 9.1 29.8 9 200 11610 235 35 28.7 20.1 | 209 30 14.4 26.5 10 192 11854 240 36 31.2 18.0 | 215 30 17.0 24.4 11 150 13340 260 35 34.5 6.1 | 238 24 20.2 12.5 12 100 15840 280 29 28.6 -5.0 | 264 14 14.3 1.4 13 70 18000 290 31 29.1 -10.6 | 286 15 14.9 -4.2 14 50 20020 280 29 28.6 -5.0 | 264 14 14.3 1.4 15 30 23010 270 36 36.0 -0.0 | 254 23 21.8 6.4 Wind Parameters Mean winds (0-6000m): 264.3 at 20.8 knts Storm direction: 294.3 at 15.6 knts Shear (0-3000m) pos: 2.8 neg: 1.1 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 59.2 deg Storm rel helicity (0-3000m) pos: 68.2 neg: -13.1 tot: 55.0 m^2/s^2 ave: 18.3 10^-3 m/s^2 rel: 0.46 Storm rel vorticity (0-3000m) horiz: 5.9 stream: 2.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.13 Bulk Shear: 12.28 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 ------------------------------------------------------------------------------- 500 252 12 163 10| 13.6 0.0 13.6| 39.9 0.0 39.9 79.8 0.98| 13.9 13.7 1000 260 17 194 10| 9.0 0.0 9.0| 61.8 0.0 61.8 61.8 0.91| 11.4 10.4 1500 266 18 207 9| 5.6 0.0 5.6| 67.1 -0.9 66.1 44.1 0.82| 9.2 7.5 2000 269 19 212 8| 4.2 0.7 4.8| 67.1 -5.5 61.6 30.8 0.66| 7.6 5.0 2500 269 18 212 8| 3.3 1.0 4.4| 67.1 -9.9 57.2 22.9 0.53| 6.6 3.5 3000 269 18 209 8| 2.8 1.1 3.9| 68.2 -13.1 55.0 18.3 0.46| 5.9 2.7 4000 268 18 208 8| 2.1 0.7 2.8| 78.8 -13.1 65.7 16.4 0.51| 5.1 2.6 5000 266 19 213 9| 1.7 1.0 2.6| 88.6 -13.1 75.5 15.1 0.51| 4.7 2.4 6000 264 21 217 11| 1.4 1.1 2.5| 92.2 -19.0 73.2 12.2 0.46| 4.2 1.9 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251204.00.gif