UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120312.upa.cvt Date: 1200Z 3 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 3 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 1006 113 2.4 -0.4 82 2.8 1.3 250 7 275.1 275.7 274.1 285.1 3.69 1 1000 161 1.6 -1.8 78 3.4 0.3 245 11 274.8 275.3 273.4 283.9 3.35 2 970 406 -0.7 -3.3 83 2.6 -1.7 249 19 274.8 275.3 273.1 283.3 3.08 3 925 784 -2.7 -4.1 90 1.4 -3.2 255 31 276.5 277.1 274.0 285.0 3.05 4 890 1089 -4.7 -6.0 91 1.3 -5.1 262 30 277.5 278.0 274.1 285.2 2.74 5 887 1115 -3.7 -5.0 91 1.3 -4.2 262 30 278.9 279.4 275.2 287.2 2.97 6 884 1142 -3.1 -4.7 89 1.6 -3.7 263 30 279.7 280.3 275.7 288.3 3.05 7 879 1187 -3.5 -6.7 78 3.2 -4.6 264 30 279.8 280.2 275.2 287.2 2.63 8 865 1315 1.0 -14.0 32 15.0 -3.7 267 29 285.8 286.0 276.7 290.2 1.49 9 854 1418 3.0 -22.0 14 25.0 -3.8 269 29 288.9 289.0 277.3 291.3 0.77 10 850 1456 3.0 -24.0 12 27.0 -4.0 270 29 289.3 289.4 277.3 291.3 0.65 11 848 1475 3.0 -25.0 11 28.0 -4.1 270 29 289.5 289.6 277.3 291.4 0.59 12 702 2984 -3.9 -37.9 5 34.0 -10.1 270 31 297.9 298.0 280.7 298.6 0.21 13 700 3006 -4.1 -38.1 5 34.0 -10.2 270 31 297.9 298.0 280.7 298.6 0.20 14 696 3051 -4.5 -36.5 6 32.0 -10.4 270 31 298.0 298.0 280.8 298.8 0.24 15 660 3467 -7.9 -13.9 62 6.0 -9.8 271 32 298.7 299.1 283.3 304.8 1.98 16 572 4564 -15.7 -18.0 82 2.3 -16.3 273 33 302.0 302.3 284.2 307.2 1.62 17 560 4724 -16.3 -18.4 84 2.1 -16.9 273 34 303.2 303.5 284.7 308.3 1.60 18 537 5039 -17.3 -20.5 76 3.2 -18.1 274 34 305.6 305.9 285.4 310.2 1.39 19 500 5570 -21.9 -25.8 71 3.9 -22.7 275 35 306.3 306.5 285.1 309.4 0.93 20 400 7170 -33.5 -37.8 65 4.3 -34.0 270 40 311.4 311.5 286.3 312.8 0.37 21 384 7456 -35.3 -39.5 65 4.2 -35.7 270 39 312.7 312.8 286.7 313.9 0.32 22 302 9077 -50.7 -55.0 60 4.3 -50.8 270 36 313.3 313.3 286.6 313.6 0.07 23 300 9120 -50.9 -55.3 59 4.4 -51.0 270 36 313.6 313.6 286.7 313.9 0.07 24 250 10280 -58.7 -63.6 53 4.9 -58.7 270 40 318.8 318.8 288.4 318.9 0.03 25 230 10800 -61.5 -66.4 52 4.9 -61.6 270 40 322.2 322.2 289.5 322.3 0.02 26 229 10827 -62.7 -67.7 51 5.0 -62.7 270 40 320.8 320.8 289.0 320.9 0.02 27 200 11650 -67.9 -72.9 49 5.0 -67.9 270 40 325.2 325.2 290.3 325.3 0.01 28 175 12443 -72.9 -77.9 47 5.0 -72.9 270 40 329.7 329.7 291.6 329.7 0.01 29 161 12935 -70.9 -75.8 48 4.9 -70.9 275 40 341.0 341.0 294.6 341.0 0.01 30 150 13360 -65.3 -70.2 51 4.9 -65.4 280 40 357.6 357.6 298.2 357.7 0.02 31 139 13829 -60.5 -65.5 52 5.0 -60.6 281 38 373.9 373.9 301.3 374.1 0.04 32 117 14891 -65.1 -70.1 50 5.0 -65.2 283 34 384.3 384.3 302.9 384.4 0.03 33 110 15267 -65.7 -71.7 43 6.0 -65.8 284 33 390.0 390.0 303.8 390.1 0.02 34 101 15789 -63.3 -69.3 44 6.0 -63.4 285 31 404.3 404.3 305.8 404.4 0.03 35 100 15850 -63.5 -69.5 44 6.0 -63.6 285 31 405.0 405.0 305.9 405.2 0.03 36 84 16912 -66.3 -72.3 43 6.0 -66.4 287 29 420.1 420.1 307.7 420.2 0.03 37 80 17210 -63.7 -69.7 44 6.0 -63.8 288 28 431.3 431.3 309.0 431.5 0.04 38 70 18020 -67.9 -74.9 36 7.0 -68.0 290 27 439.1 439.1 309.8 439.2 0.02 39 68 18195 -68.1 -75.1 36 7.0 -68.2 290 27 442.3 442.4 310.1 442.5 0.02 40 62 18753 -66.1 -74.1 32 8.0 -66.2 290 28 458.6 458.6 311.7 458.8 0.03 41 50 20050 -69.5 -77.5 30 8.0 -69.6 290 29 479.7 479.7 313.4 479.8 0.02 42 49 20169 -69.9 -77.9 30 8.0 -70.0 290 29 481.5 481.5 313.6 481.7 0.02 43 36 21986 -71.3 -79.3 29 8.0 -71.4 284 33 522.3 522.3 316.5 522.4 0.02 44 30 23040 -77.9 -86.9 22 9.0 -78.0 280 35 532.3 532.3 317.1 532.3 0.01 45 29 23235 -78.1 -87.1 22 9.0 -78.1 280 36 536.9 536.9 317.3 536.9 0.01 46 20 25340 -83.5 -92.5 19 9.0 -83.5 285 48 580.6 580.6 319.7 580.6 0.00 47 17 26242 -83.9 -92.9 19 9.0 -83.9 606.9 606.9 320.9 606.9 0.00 TRP 175 12443 -72.9 -77.9 47 5.0 -72.9 270 40 329.7 329.7 291.6 329.7 0.01 WND Sounding variables and indices 1000-500 mb thick: 5409.00 m Freezing level: 979.13 mb = 331.14 m = 1086.42 ft Freezing level: 868.11 mb = 1286.37 m = 4220.33 ft Freezing level: 784.52 mb = 2130.90 m = 6991.06 ft Wetbulb zero: 996.06 mb = 192.73 m = 632.30 ft Precipitable water: 0.35 inches Sfc-500 mean rel hum: 52.76 % Est. max temperature: 15.67 C = 60.20 F Sfc-Lift cond lev (LCL): 963.19 mb = 461.70 m = 1514.75 ft T: -1.00 C 700-500 lapse rate: 6.94 C/km ThetaE index: 1.83 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 898.48 mb = 1013.75 m = 3325.91 ft Mean mixing ratio: 3.11 g/kg Conv temperature: 4.63 C = 40.33 F Cap Strength: 18.83 C Lifted Index: 18.74 C Risk: None Lifted Index @300 mb: 20.86 C Lifted Index @700 mb: 15.51 C Showalter Index: 13.35 C Risk: None Total Totals Index: 22.80 C Risk: None Vertical Totals Index: 24.90 C Cross Totals Index: -2.10 C K Index: -33.10 Risk: None Sweat Index: 93.00 Risk: None Energy Index: 3.80 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.31 J/kg Max Up Vert Vel: 4.08 m/s Conv Inhibition (B-): 46289.15 J/kg Cap Strength: 18.81 C Lift Cond Lev (LCL): 921.93 mb = 810.25 m = 2658.28 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 300 at 23 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 1006 113 250 7 6.6 2.4 | 136 19 -13.5 13.8 1 1000 161 245 11 10.0 4.6 | 148 19 -10.1 16.1 2 925 784 255 31 29.9 8.0 | 207 22 9.9 19.4 3 850 1456 270 29 29.0 -0.0 | 218 14 8.9 11.4 4 700 3006 270 31 31.0 -0.0 | 224 16 10.9 11.4 5 500 5570 275 35 34.9 -3.1 | 241 17 14.8 8.4 6 400 7170 270 40 40.0 -0.0 | 240 23 19.9 11.4 7 300 9120 270 36 36.0 -0.0 | 234 20 15.9 11.4 8 250 10280 270 40 40.0 -0.0 | 240 23 19.9 11.4 9 200 11650 270 40 40.0 -0.0 | 240 23 19.9 11.4 10 175 12443 270 40 40.0 -0.0 | 240 23 19.9 11.4 11 150 13360 280 40 39.4 -6.9 | 257 20 19.3 4.5 12 100 15850 285 31 29.9 -8.0 | 251 10 9.9 3.4 13 70 18020 290 27 25.4 -9.2 | 248 6 5.3 2.2 14 50 20050 290 29 27.3 -9.9 | 258 7 7.2 1.5 15 30 23040 280 35 34.5 -6.1 | 250 15 14.4 5.3 16 20 25340 285 48 46.4 -12.4 | 272 26 26.3 -1.0 Wind Parameters Mean winds (0-6000m): 269.6 at 30.8 knts Storm direction: 299.6 at 23.1 knts Shear (0-3000m) pos: 4.0 neg: 0.2 tot: 4.2 10-3/s Storm rel Dir Shear (0-3000m): 88.9 deg Storm rel helicity (0-3000m) pos: 143.5 neg: 0.0 tot: 143.5 m^2/s^2 ave: 47.8 10^-3 m/s^2 rel: 0.85 Storm rel vorticity (0-3000m) horiz: 5.9 stream: 5.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.26 Bulk Shear: 32.07 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 ------------------------------------------------------------------------------- 500 250 17 168 18| 19.0 0.0 19.0| 91.4 0.0 91.4 182.8 0.99| 19.3 19.1 1000 255 24 189 18| 12.0 0.0 12.0|129.3 0.0 129.3 129.3 0.91| 14.5 13.2 1500 260 25 197 17| 7.8 0.0 7.8|137.2 0.0 137.2 91.5 0.85| 11.1 9.4 2000 262 26 202 16| 5.9 0.2 6.0|139.2 0.0 139.2 69.6 0.85| 8.5 7.2 2500 264 27 206 16| 4.7 0.3 4.9|141.1 0.0 141.1 56.4 0.85| 6.9 5.8 3000 265 28 209 16| 4.0 0.2 4.2|143.5 0.0 143.5 47.8 0.85| 5.9 5.0 4000 267 29 214 16| 3.2 0.2 3.4|151.4 0.0 151.4 37.8 0.85| 4.7 4.0 5000 268 30 218 16| 2.8 0.1 2.9|159.5 0.0 159.5 31.9 0.86| 3.9 3.4 6000 270 31 223 16| 2.4 0.3 2.6|163.5 0.0 163.5 27.3 0.82| 3.5 2.9 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251203.12.gif