UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120812.upa.cvt Date: 1200Z 8 DEC 25 Searching for U3921... Searching the city database file for: U3921 ... Date:1200Z 8 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 1031 92 -28.5 -31.6 75 3.1 -28.7 0 0 242.5 242.6 242.5 243.2 0.26 1 1030 99 -26.5 -29.9 73 3.4 -26.8 355 0 244.6 244.6 244.5 245.4 0.31 2 1013 220 -25.7 -29.2 72 3.5 -26.0 271 1 246.5 246.6 246.3 247.4 0.34 3 1012 227 -23.9 -27.6 71 3.7 -24.2 266 1 248.4 248.5 248.1 249.5 0.39 4 1000 314 -22.1 -25.6 73 3.5 -22.5 205 1 251.1 251.1 250.7 252.3 0.48 5 991 381 -20.5 -24.0 73 3.5 -21.0 187 1 253.3 253.4 252.8 254.8 0.55 6 958 632 -20.3 -23.6 75 3.3 -20.7 120 3 256.0 256.1 255.1 257.6 0.59 7 944 741 -18.5 -21.8 75 3.3 -19.0 90 4 258.9 259.0 257.8 260.8 0.71 8 938 789 -16.5 -19.7 76 3.2 -17.0 78 4 261.4 261.5 260.0 263.7 0.85 9 925 894 -16.1 -19.3 76 3.2 -16.7 50 5 262.8 263.0 261.2 265.3 0.90 10 903 1076 -14.3 -17.7 75 3.4 -15.0 60 6 266.5 266.7 264.3 269.4 1.05 11 898 1118 -14.3 -17.8 75 3.5 -15.0 62 6 266.9 267.1 264.6 269.9 1.05 12 854 1498 -14.3 -26.3 35 12.0 -16.2 83 7 270.8 270.9 266.3 272.3 0.52 13 850 1534 -14.3 -27.3 32 13.0 -16.3 85 7 271.2 271.2 266.4 272.6 0.48 14 764 2338 -16.9 -37.9 14 21.0 -19.3 77 9 276.8 276.8 269.5 277.4 0.19 15 700 2987 -22.1 -38.1 22 16.0 -23.7 70 11 278.0 278.0 270.3 278.7 0.20 16 503 5339 -37.3 -47.3 35 10.0 -37.8 50 21 287.1 287.1 275.3 287.4 0.11 17 500 5380 -37.5 -47.5 35 10.0 -38.0 50 21 287.3 287.3 275.5 287.7 0.10 18 443 6208 -42.7 -52.7 33 10.0 -43.0 45 25 290.9 290.9 277.2 291.1 0.07 19 400 6890 -47.9 -57.9 31 10.0 -48.1 40 29 292.7 292.7 278.1 292.9 0.04 20 343 7885 -55.3 -65.3 28 10.0 -55.4 35 30 295.8 295.8 279.5 295.9 0.02 21 306 8606 -58.5 -68.5 27 10.0 -58.6 31 31 301.2 301.2 281.8 301.2 0.01 22 300 8730 -59.3 -69.3 26 10.0 -59.4 30 31 301.8 301.8 282.1 301.8 0.01 23 250 9860 -66.5 -75.5 27 9.0 -66.5 35 27 307.2 307.2 284.2 307.2 0.01 24 245 9982 -67.1 -76.1 27 9.0 -67.1 30 27 308.1 308.1 284.6 308.1 0.01 25 229 10392 -65.9 -74.9 27 9.0 -66.0 23 26 315.9 315.9 287.4 315.9 0.01 26 200 11220 -64.1 -74.1 24 10.0 -64.2 10 25 331.2 331.3 292.0 331.3 0.01 27 165 12397 -63.1 -73.1 25 10.0 -63.2 353 28 351.7 351.7 297.0 351.7 0.01 28 150 12980 -64.1 -74.1 24 10.0 -64.2 345 29 359.7 359.7 298.7 359.7 0.01 29 100 15440 -66.3 -76.3 23 10.0 -66.4 310 31 399.6 399.6 305.2 399.7 0.01 30 70 17580 -69.9 -80.9 19 11.0 -70.0 300 25 434.8 434.8 309.3 434.9 0.01 31 50 19560 -73.1 -84.1 17 11.0 -73.2 295 31 471.2 471.2 312.7 471.3 0.01 32 36 21472 -75.7 -86.7 16 11.0 -75.8 510.9 510.9 315.7 511.0 0.01 TRP 245 9982 -67.1 -76.1 27 9.0 -67.1 30 27 308.1 308.1 284.6 308.1 0.01 WND Sounding variables and indices 1000-500 mb thick: 5066.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.08 inches Sfc-500 mean rel hum: 37.10 % Est. max temperature: -2.39 C = 27.69 F Sfc-Lift cond lev (LCL): 978.47 mb = 475.04 m = 1558.51 ft T: -20.42 C 700-500 lapse rate: 6.44 C/km ThetaE index: 0.00 C Layer 1031.0--2403244174546658090678512915595657216.0 mb Conv cond level (CCL): 1030.00 mb = 99.34 m = 325.90 ft Mean mixing ratio: 0.55 g/kg Conv temperature: -23.54 C = -10.38 F Cap Strength: 26.43 C Lifted Index: 26.58 C Risk: None Lifted Index @300 mb: 33.14 C Lifted Index @700 mb: 21.12 C Showalter Index: 12.28 C Risk: None Total Totals Index: 33.40 C Risk: None Vertical Totals Index: 23.20 C Cross Totals Index: 10.20 C K Index: -20.10 Risk: None Sweat Index: 35.00 Risk: None Energy Index: 3.18 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 58.54 J/kg Max Up Vert Vel: 10.82 m/s Conv Inhibition (B-): 42126.28 J/kg Cap Strength: 26.44 C Lift Cond Lev (LCL): 932.25 mb = 835.21 m = 2740.17 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 89 at 9 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 1031 92 0 0 -0.0 -0.0 | 269 9 9.3 0.2 1 1000 314 205 1 0.4 0.9 | 263 10 9.7 1.1 2 925 894 50 5 -3.8 -3.2 | 299 6 5.4 -3.0 3 850 1534 85 7 -7.0 -0.6 | 280 2 2.3 -0.4 4 700 2987 70 11 -10.3 -3.8 | 17 4 -1.1 -3.5 5 500 5380 50 21 -16.1 -13.5 | 27 15 -6.8 -13.3 6 400 6890 40 29 -18.6 -22.2 | 23 24 -9.4 -22.0 7 300 8730 30 31 -15.5 -26.8 | 13 27 -6.2 -26.6 8 250 9860 35 27 -15.5 -22.1 | 16 23 -6.2 -21.9 9 245 9982 30 27 -13.5 -23.4 | 10 24 -4.2 -23.2 10 200 11220 10 25 -4.3 -24.6 | 349 25 4.9 -24.4 11 150 12980 345 29 7.5 -28.0 | 329 32 16.8 -27.8 12 100 15440 310 31 23.7 -19.9 | 301 38 33.0 -19.7 13 70 17580 300 25 21.7 -12.5 | 292 33 30.9 -12.3 14 50 19560 295 31 28.1 -13.1 | 289 40 37.4 -12.9 Wind Parameters Mean winds (0-6000m): 58.7 at 12.3 knts Storm direction: 88.7 at 9.3 knts Shear (0-3000m) pos: 1.0 neg: 1.7 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 111.7 deg Storm rel helicity (0-3000m) pos: 9.3 neg: -7.5 tot: 1.8 m^2/s^2 ave: 0.6 10^-3 m/s^2 rel: 0.24 Storm rel vorticity (0-3000m) horiz: 3.4 stream: 0.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 2.78 Bulk Shear: 21.06 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 ------------------------------------------------------------------------------- 500 158 1 261 9| 3.0 0.0 3.0| 0.4 -6.7 -6.3 -12.6 -0.53| 4.9 -2.6 1000 57 3 281 7| 1.5 2.8 4.3| 7.3 -6.7 0.6 0.6 0.18| 6.1 1.1 1500 69 4 283 6| 2.0 1.8 3.9| 7.3 -7.5 -0.2 -0.1 0.08| 5.1 0.4 2000 74 5 284 5| 1.5 1.7 3.3| 8.0 -7.5 0.5 0.2 0.16| 4.2 0.7 2500 75 6 290 4| 1.2 1.7 2.9| 8.6 -7.5 1.1 0.5 0.22| 3.7 0.8 3000 73 7 300 3| 1.0 1.7 2.8| 9.3 -7.5 1.8 0.6 0.24| 3.4 0.8 4000 70 8 331 3| 0.8 1.9 2.7| 10.7 -7.5 3.2 0.8 0.23| 3.1 0.7 5000 64 10 360 4| 0.6 2.0 2.6| 10.7 -8.9 1.9 0.4 0.18| 3.0 0.5 6000 59 12 12 6| 0.5 2.2 2.7| 10.7 -11.9 -1.2 -0.2 0.13| 3.0 0.4 Wrote GIF file: /home/apache/climate/data/raob//U3921/skewt/U3921.skewt.20251208.12.gif