UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 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 111 0.0 -2.4 84 2.4 -0.9 225 3 272.5 273.1 271.8 281.1 3.17 1 1000 175 -1.1 -3.9 81 2.8 -2.1 225 5 272.0 272.5 271.0 279.8 2.86 2 974 384 -3.1 -5.5 83 2.4 -3.9 235 7 272.1 272.5 270.7 279.2 2.60 3 930 751 -2.3 -4.5 85 2.2 -3.1 253 11 276.5 277.0 273.8 284.7 2.94 4 925 794 -2.7 -4.8 85 2.1 -3.5 255 11 276.5 277.0 273.8 284.6 2.89 5 895 1054 -4.9 -6.8 87 1.9 -5.5 247 9 276.9 277.3 273.5 284.1 2.56 6 876 1223 -4.5 -6.0 89 1.5 -5.0 242 7 279.0 279.5 275.0 286.8 2.78 7 850 1462 -1.5 -3.6 86 2.1 -2.3 235 5 284.6 285.2 278.8 294.4 3.44 8 846 1500 -1.5 -3.7 85 2.2 -2.4 236 5 285.0 285.6 279.0 294.8 3.43 9 780 2143 -3.9 -13.9 46 10.0 -7.0 246 9 289.1 289.4 278.7 294.1 1.67 10 768 2266 -3.9 -13.9 46 10.0 -7.0 248 10 290.4 290.7 279.3 295.5 1.70 11 748 2474 -3.7 -29.7 11 26.0 -9.2 251 12 292.8 292.9 278.7 294.2 0.44 12 700 2994 -7.7 -18.7 41 11.0 -10.7 260 15 294.0 294.2 280.4 297.8 1.25 13 609 4059 -15.1 -21.1 60 6.0 -16.5 252 17 297.4 297.6 281.8 301.1 1.17 14 583 4387 -16.9 -28.9 35 12.0 -19.1 249 17 299.0 299.1 281.7 301.0 0.60 15 533 5053 -21.3 -31.3 40 10.0 -22.9 244 18 301.5 301.6 282.7 303.3 0.52 16 500 5520 -25.5 -35.5 39 10.0 -26.8 240 19 301.9 302.0 282.7 303.2 0.37 17 495 5593 -26.3 -36.3 38 10.0 -27.5 239 19 301.8 301.9 282.6 303.0 0.35 18 467 6012 -28.1 -40.1 31 12.0 -29.3 235 21 304.7 304.7 283.6 305.5 0.25 19 404 7031 -37.5 -50.5 25 13.0 -38.2 226 27 305.4 305.4 283.7 305.7 0.09 20 400 7100 -38.1 -50.1 27 12.0 -38.7 225 27 305.5 305.5 283.7 305.8 0.10 21 318 8641 -49.3 -62.3 20 13.0 -49.6 237 27 310.6 310.6 285.6 310.8 0.03 22 300 9020 -52.7 -65.7 19 13.0 -52.9 240 27 311.1 311.1 285.7 311.1 0.02 23 272 9649 -58.1 -70.1 20 12.0 -58.2 237 26 312.1 312.1 286.1 312.1 0.01 24 250 10180 -61.5 -73.5 19 12.0 -61.6 235 25 314.6 314.6 286.9 314.7 0.01 25 217 11046 -66.1 -78.1 17 12.0 -66.1 245 25 320.5 320.5 288.9 320.5 0.00 26 215 11102 -66.1 -78.1 17 12.0 -66.1 245 25 321.4 321.4 289.2 321.4 0.00 27 200 11540 -65.7 -77.7 17 12.0 -65.8 245 25 328.7 328.7 291.3 328.7 0.00 28 198 11601 -65.7 -77.7 17 12.0 -65.8 246 25 329.7 329.7 291.6 329.7 0.00 29 180 12187 -61.5 -73.5 19 12.0 -61.6 252 25 345.6 345.6 295.7 345.7 0.01 30 150 13320 -61.3 -73.3 19 12.0 -61.4 265 25 364.5 364.5 299.5 364.5 0.01 31 142 13659 -59.9 -71.9 19 12.0 -60.1 266 25 372.7 372.7 301.1 372.8 0.02 32 100 15820 -63.3 -75.3 18 12.0 -63.4 275 27 405.4 405.4 305.9 405.5 0.01 33 83 16956 -66.7 -79.7 14 13.0 -66.8 280 28 420.7 420.7 307.8 420.7 0.01 34 70 17990 -65.1 -78.1 15 13.0 -65.3 285 29 445.1 445.1 310.4 445.2 0.01 35 69 18077 -65.1 -78.1 15 13.0 -65.3 284 29 446.9 447.0 310.6 447.0 0.01 36 50 20000 -71.3 -84.3 13 13.0 -71.4 270 29 475.5 475.5 313.1 475.5 0.01 37 44 20751 -73.7 -86.7 12 13.0 -73.8 273 31 487.3 487.3 314.0 487.3 0.00 38 32 22607 -74.7 -87.7 12 13.0 -74.8 279 37 531.1 531.1 317.0 531.1 0.01 39 30 22980 -77.5 -90.5 11 13.0 -77.6 280 38 533.4 533.4 317.1 533.4 0.00 40 22 24723 -83.3 -95.3 11 12.0 -83.4 272 50 565.6 565.6 318.9 565.6 0.00 41 20 25250 -83.9 -96.9 8 13.0 -83.9 270 54 579.4 579.4 319.6 579.4 0.00 42 12 28061 -86.7 -98.7 9 12.0 -86.8 660.6 660.6 323.1 660.6 0.00 TRP 217 11046 -66.1 -78.1 17 12.0 -66.1 245 25 320.5 320.5 288.9 320.5 0.00 WND Sounding variables and indices 1000-500 mb thick: 5345.00 m Freezing level: 1008.00 mb = 111.38 m = 365.40 ft Wetbulb zero: Below ground Precipitable water: 0.37 inches Sfc-500 mean rel hum: 54.76 % Est. max temperature: 10.33 C = 50.60 F Sfc-Lift cond lev (LCL): 970.85 mb = 410.16 m = 1345.64 ft T: -3.04 C 700-500 lapse rate: 7.05 C/km ThetaE index: 1.94 C Layer 1000.0- 930.0 mb Conv cond level (CCL): 679.74 mb = 3218.70 m = 10559.92 ft Mean mixing ratio: 2.79 g/kg Conv temperature: 22.22 C = 71.99 F Cap Strength: 17.18 C Lifted Index: 17.02 C Risk: None Lifted Index @300 mb: 20.76 C Lifted Index @700 mb: 13.64 C Showalter Index: 7.47 C Risk: None Total Totals Index: 45.90 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.00 C Cross Totals Index: 21.90 C K Index: 9.40 Risk: None Sweat Index: 29.00 Risk: None Energy Index: 1.87 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 19.67 J/kg Max Up Vert Vel: 6.27 m/s Conv Inhibition (B-): 46647.09 J/kg Cap Strength: 17.17 C Lift Cond Lev (LCL): 922.00 mb = 819.67 m = 2689.18 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 278 at 10 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 111 225 3 2.1 2.1 | 114 9 -8.0 3.5 1 1000 175 225 5 3.5 3.5 | 127 8 -6.6 4.9 2 925 794 255 11 10.6 2.8 | 187 4 0.5 4.2 3 850 1462 235 5 4.1 2.9 | 125 7 -6.0 4.2 4 700 2994 260 15 14.8 2.6 | 230 6 4.7 4.0 5 500 5520 240 19 16.5 9.5 | 210 13 6.4 10.9 6 400 7100 225 27 19.1 19.1 | 204 22 9.0 20.5 7 300 9020 240 27 23.4 13.5 | 222 20 13.3 14.9 8 250 10180 235 25 20.5 14.3 | 213 19 10.4 15.7 9 217 11046 245 25 22.7 10.6 | 226 17 12.6 11.9 10 200 11540 245 25 22.7 10.6 | 226 17 12.6 11.9 11 150 13320 265 25 24.9 2.2 | 257 15 14.8 3.5 12 100 15820 275 27 26.9 -2.4 | 273 17 16.8 -1.0 13 70 17990 285 29 28.0 -7.5 | 289 19 17.9 -6.1 14 50 20000 270 29 29.0 -0.0 | 266 19 18.9 1.4 15 30 22980 280 38 37.4 -6.6 | 281 28 27.3 -5.2 16 20 25250 270 54 54.0 -0.0 | 268 44 43.9 1.4 Wind Parameters Mean winds (0-6000m): 247.7 at 13.6 knts Storm direction: 277.7 at 10.2 knts Shear (0-3000m) pos: 2.8 neg: 0.6 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 115.0 deg Storm rel helicity (0-3000m) pos: 29.0 neg: -7.9 tot: 21.1 m^2/s^2 ave: 7.0 10^-3 m/s^2 rel: 0.48 Storm rel vorticity (0-3000m) horiz: 4.5 stream: 2.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 2.97 Bulk Shear: 6.62 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 ------------------------------------------------------------------------------- 500 238 7 138 7| 6.7 0.0 6.7| 11.6 0.0 11.6 23.1 0.87| 7.2 6.2 1000 247 8 151 5| 3.4 0.6 3.9| 13.9 -3.6 10.4 10.4 0.42| 6.3 2.6 1500 246 8 145 5| 2.2 1.2 3.4| 15.0 -7.7 7.3 4.9 0.20| 5.5 1.1 2000 245 8 145 6| 2.6 0.9 3.4| 20.0 -7.7 12.3 6.2 0.32| 5.0 1.6 2500 248 8 151 5| 2.8 0.7 3.5| 25.0 -7.7 17.2 6.9 0.43| 4.7 2.0 3000 251 9 162 5| 2.8 0.6 3.4| 29.0 -7.9 21.1 7.0 0.48| 4.5 2.1 4000 253 11 183 5| 2.1 0.4 2.5| 29.0 -10.1 18.9 4.7 0.40| 3.7 1.5 5000 251 12 196 6| 1.7 0.5 2.2| 29.0 -13.6 15.4 3.1 0.32| 3.3 1.0 6000 248 14 201 7| 1.4 0.8 2.2| 29.0 -17.0 12.0 2.0 0.25| 3.1 0.8 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251204.12.gif