UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for U3921... Searching the city database file for: U3921 ... Date:1200Z 9 DEC 25 Station: U3921 WMO ident: 23921 Latitude: 60.68 Longitude: 60.43 ------------------------------------------------------------------------------- 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 1024 93 -25.7 -28.8 75 3.1 -25.9 0 0 245.8 245.8 245.6 246.7 0.35 1 1002 251 -23.9 -28.4 66 4.5 -24.3 133 6 249.1 249.2 248.7 250.1 0.37 2 1000 266 -23.1 -27.6 67 4.5 -23.5 145 7 250.1 250.1 249.6 251.1 0.40 3 987 364 -13.1 -17.4 70 4.3 -13.9 158 9 261.0 261.2 260.0 263.7 0.99 4 976 450 -10.7 -14.3 75 3.6 -11.5 170 10 264.3 264.5 263.1 267.8 1.29 5 957 601 -9.7 -12.5 80 2.8 -10.4 190 13 266.8 267.0 265.3 271.0 1.53 6 952 642 -7.1 -9.5 83 2.4 -7.8 195 13 269.8 270.1 268.1 275.2 1.95 7 946 691 -7.5 -9.9 83 2.4 -8.2 202 14 269.9 270.2 268.1 275.1 1.90 8 925 866 -8.1 -12.8 69 4.7 -9.4 225 17 271.0 271.3 268.2 275.3 1.54 9 866 1377 -8.9 -17.9 48 9.0 -11.0 241 26 275.3 275.5 270.2 278.5 1.08 10 850 1521 -10.1 -21.1 40 11.0 -12.4 245 29 275.6 275.7 269.9 278.0 0.83 11 787 2111 -13.1 -29.1 25 16.0 -15.7 249 29 278.5 278.6 271.0 279.8 0.44 12 777 2209 -12.3 -30.3 21 18.0 -15.2 250 29 280.4 280.4 272.1 281.6 0.40 13 739 2591 -14.7 -39.7 10 25.0 -17.7 252 29 281.8 281.8 272.5 282.3 0.16 14 726 2725 -15.5 -39.5 11 24.0 -18.3 253 29 282.4 282.4 272.8 282.9 0.17 15 700 3000 -15.9 -38.9 12 23.0 -18.7 255 29 284.9 284.9 274.3 285.5 0.19 16 656 3487 -17.3 -42.3 9 25.0 -20.0 259 28 288.6 288.7 276.2 289.1 0.14 17 569 4534 -25.5 -52.5 6 27.0 -27.3 267 27 291.0 291.0 277.2 291.2 0.05 18 542 4885 -27.1 -53.1 7 26.0 -28.7 270 26 293.2 293.2 278.3 293.3 0.05 19 500 5460 -31.3 -49.3 15 18.0 -32.4 275 25 294.9 294.9 279.1 295.2 0.09 20 443 6304 -36.7 -46.7 35 10.0 -37.2 291 24 298.4 298.5 280.8 298.9 0.13 21 400 7000 -42.3 -50.3 41 8.0 -42.6 305 23 300.0 300.0 281.5 300.4 0.10 22 384 7275 -44.5 -52.5 41 8.0 -44.8 305 24 300.6 300.7 281.7 300.9 0.08 23 300 8880 -58.1 -64.1 46 6.0 -58.2 305 31 303.4 303.5 282.8 303.5 0.02 24 273 9465 -62.9 -68.9 44 6.0 -63.0 305 31 304.8 304.8 283.3 304.8 0.01 25 250 10000 -66.7 -72.7 42 6.0 -66.7 305 31 306.9 306.9 284.1 306.9 0.01 26 242 10196 -67.9 -73.9 42 6.0 -67.9 307 33 308.0 308.0 284.5 308.0 0.01 27 203 11242 -71.3 -77.3 40 6.0 -71.3 315 44 318.5 318.5 288.2 318.5 0.01 28 200 11330 -71.1 -77.1 41 6.0 -71.1 320 44 320.2 320.2 288.8 320.2 0.01 29 189 11667 -68.9 -74.9 42 6.0 -68.9 320 43 328.9 328.9 291.4 329.0 0.01 30 162 12588 -70.5 -76.5 41 6.0 -70.5 320 41 341.1 341.1 294.6 341.1 0.01 31 152 12970 -66.9 -72.9 42 6.0 -67.0 320 40 353.5 353.5 297.4 353.6 0.01 32 150 13050 -66.9 -72.9 42 6.0 -67.0 320 40 354.8 354.8 297.7 354.9 0.01 33 125 14143 -70.1 -76.1 41 6.0 -70.1 368.0 368.0 300.2 368.1 0.01 34 116 14590 -67.9 -73.9 42 6.0 -67.9 380.1 380.1 302.3 380.1 0.01 35 101 15420 -69.1 -75.1 41 6.0 -69.2 393.1 393.1 304.2 393.2 0.01 TRP 203 11242 -71.3 -77.3 40 6.0 -71.3 315 44 318.5 318.5 288.2 318.5 0.01 WND Sounding variables and indices 1000-500 mb thick: 5194.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.12 inches Sfc-500 mean rel hum: 27.04 % Est. max temperature: 3.46 C = 38.23 F Sfc-Lift cond lev (LCL): 972.20 mb = 479.82 m = 1574.19 ft T: -10.50 C 700-500 lapse rate: 6.26 C/km ThetaE index: 0.46 C Layer 850.0- 787.0 mb Conv cond level (CCL): 1002.00 mb = 251.37 m = 824.70 ft Mean mixing ratio: 1.16 g/kg Conv temperature: -13.65 C = 7.42 F Cap Strength: 24.21 C Lifted Index: 24.99 C Risk: None Lifted Index @300 mb: 27.60 C Lifted Index @700 mb: 19.12 C Showalter Index: 14.18 C Risk: None Total Totals Index: 31.40 C Risk: None Vertical Totals Index: 21.20 C Cross Totals Index: 10.20 C K Index: -22.90 Risk: None Sweat Index: 170.50 Risk: None Energy Index: 3.65 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 115.83 J/kg Max Up Vert Vel: 15.22 m/s Conv Inhibition (B-): 20423.38 J/kg Cap Strength: 24.94 C Lift Cond Lev (LCL): 945.17 mb = 698.12 m = 2290.41 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 287 at 18 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 1024 93 0 0 -0.0 -0.0 | 107 18 -17.7 5.4 1 1000 266 145 7 -4.0 5.7 | 117 24 -21.7 11.1 2 925 866 225 17 12.0 12.0 | 162 18 -5.7 17.4 3 850 1521 245 29 26.3 12.3 | 206 20 8.6 17.6 4 700 3000 255 29 28.0 7.5 | 219 17 10.3 12.9 5 500 5460 275 25 24.9 -2.2 | 246 8 7.2 3.2 6 400 7000 305 23 18.8 -13.2 | 352 8 1.2 -7.8 7 300 8880 305 31 25.4 -17.8 | 328 15 7.7 -12.4 8 250 10000 305 31 25.4 -17.8 | 328 15 7.7 -12.4 9 203 11242 315 44 31.1 -31.1 | 332 29 13.4 -25.7 10 200 11330 320 44 28.3 -33.7 | 339 30 10.6 -28.3 11 150 13050 320 40 25.7 -30.6 | 342 26 8.0 -25.3 Wind Parameters Mean winds (0-6000m): 257.0 at 24.7 knts Storm direction: 287.0 at 18.5 knts Shear (0-3000m) pos: 4.6 neg: 2.1 tot: 6.7 10-3/s Storm rel Dir Shear (0-3000m): 112.5 deg Storm rel helicity (0-3000m) pos: 234.6 neg: -7.8 tot: 226.8 m^2/s^2 ave: 75.6 10^-3 m/s^2 rel: 0.82 Storm rel vorticity (0-3000m) horiz: 8.5 stream: 7.0 10^-3/s Energy-Hel index: 0.16 Bulk Rich Number: 1.34 Bulk Shear: 86.69 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 ------------------------------------------------------------------------------- 500 168 7 123 23| 0.0 12.8 12.8| 93.6 -7.8 85.9 171.7 0.69| 20.0 13.8 1000 211 12 144 19| 7.6 6.4 14.0|166.4 -7.8 158.6 158.6 0.78| 17.7 13.9 1500 228 16 162 17| 8.4 4.3 12.7|215.6 -7.8 207.8 138.5 0.83| 15.2 12.6 2000 236 20 174 17| 6.5 3.2 9.7|222.2 -7.8 214.5 107.2 0.83| 11.9 9.8 2500 240 21 183 16| 5.3 2.6 7.9|228.6 -7.8 220.9 88.4 0.83| 9.8 8.1 3000 243 23 189 16| 4.6 2.1 6.7|234.6 -7.8 226.8 75.6 0.82| 8.5 7.0 4000 248 24 198 15| 3.5 1.6 5.1|243.2 -7.8 235.4 58.9 0.80| 6.9 5.5 5000 252 25 204 14| 2.8 1.3 4.1|249.5 -7.8 241.7 48.3 0.78| 6.0 4.7 6000 257 25 210 13| 2.5 1.1 3.5|259.7 -7.8 251.9 42.0 0.79| 5.6 4.4 Wrote GIF file: /home/apache/climate/data/raob//U3921/skewt/U3921.skewt.20251209.12.gif