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 U3955... Searching the city database file for: U3955 ... Date:1200Z 8 DEC 25 Station: U3955 WMO ident: 23955 Latitude: 60.43 Longitude: 77.87 ------------------------------------------------------------------------------- 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 1032 51 -31.3 -34.9 70 3.6 -31.5 270 3 239.7 239.7 239.6 240.2 0.19 1 1000 277 -25.5 -28.9 73 3.4 -25.8 285 3 247.6 247.7 247.4 248.6 0.35 2 971 493 -20.3 -23.6 75 3.3 -20.7 302 5 255.0 255.1 254.3 256.6 0.59 3 925 854 -17.5 -21.8 69 4.3 -18.2 330 9 261.4 261.5 259.8 263.4 0.72 4 920 894 -17.3 -21.7 69 4.4 -18.0 332 9 262.0 262.1 260.3 264.1 0.73 5 855 1442 -16.9 -19.0 84 2.1 -17.3 358 15 268.0 268.2 265.2 270.8 0.99 6 850 1486 -17.1 -19.3 83 2.2 -17.5 360 15 268.2 268.4 265.3 271.0 0.98 7 794 1995 -19.5 -24.5 64 5.0 -20.3 9 17 270.9 271.1 266.6 272.9 0.66 8 700 2921 -25.3 -32.3 52 7.0 -26.1 25 21 274.5 274.5 268.4 275.6 0.36 9 585 4206 -33.5 -41.5 44 8.0 -34.0 30 25 279.4 279.4 271.1 279.9 0.17 10 500 5300 -38.1 -50.1 27 12.0 -38.6 35 29 286.6 286.6 275.0 286.9 0.08 11 456 5925 -43.5 -56.5 22 13.0 -43.9 33 31 287.5 287.5 275.4 287.6 0.04 12 404 6725 -49.7 -61.7 23 12.0 -49.9 30 33 289.6 289.6 276.5 289.7 0.02 13 400 6790 -50.1 -62.1 23 12.0 -50.3 30 33 289.9 289.9 276.6 290.0 0.02 14 306 8497 -61.3 -71.3 25 10.0 -61.4 25 31 297.2 297.2 280.1 297.3 0.01 15 300 8620 -61.9 -71.9 25 10.0 -62.0 25 31 298.1 298.1 280.5 298.1 0.01 16 260 9493 -65.7 -75.7 24 10.0 -65.7 20 27 305.0 305.0 283.4 305.0 0.01 17 250 9730 -65.1 -75.1 24 10.0 -65.1 15 25 309.3 309.3 285.1 309.3 0.01 18 200 11100 -62.9 -72.9 25 10.0 -63.0 340 21 333.2 333.2 292.6 333.2 0.01 19 193 11319 -62.5 -72.5 25 10.0 -62.6 337 21 337.2 337.2 293.6 337.2 0.01 20 150 12870 -63.1 -73.1 25 10.0 -63.2 315 25 361.4 361.4 299.0 361.4 0.01 21 100 15370 -63.7 -73.7 24 10.0 -63.8 285 29 404.7 404.7 305.8 404.7 0.02 22 90 16013 -64.9 -74.9 24 10.0 -65.0 286 30 414.6 414.6 307.1 414.7 0.02 23 70 17530 -68.1 -79.1 19 11.0 -68.2 290 31 438.7 438.7 309.7 438.8 0.01 24 50 19540 -71.3 -82.3 18 11.0 -71.4 275 35 475.5 475.5 313.1 475.5 0.01 25 42 20567 -72.9 -83.9 17 11.0 -73.0 495.8 495.8 314.7 495.9 0.01 TRP 260 9493 -65.7 -75.7 24 10.0 -65.7 20 27 305.0 305.0 283.4 305.0 0.01 WND Sounding variables and indices 1000-500 mb thick: 5023.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 56.62 % Est. max temperature: -5.30 C = 22.45 F Sfc-Lift cond lev (LCL): 970.67 mb = 495.19 m = 1624.60 ft T: -20.28 C 700-500 lapse rate: 5.38 C/km ThetaE index: 0.00 C Layer 1032.0--230215357595645902848.0 mb Conv cond level (CCL): 622.51 mb = 3760.94 m = 12338.89 ft Mean mixing ratio: 0.48 g/kg Conv temperature: 7.06 C = 44.71 F Cap Strength: 22.85 C Lifted Index: 27.74 C Risk: None Lifted Index @300 mb: 32.06 C Lifted Index @700 mb: 19.80 C Showalter Index: 12.97 C Risk: None Total Totals Index: 39.80 C Risk: None Vertical Totals Index: 21.00 C Cross Totals Index: 18.80 C K Index: -5.30 Risk: None Sweat Index: 59.00 Risk: None Energy Index: 3.32 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 73.30 J/kg Max Up Vert Vel: 12.11 m/s Conv Inhibition (B-): 41135.35 J/kg Cap Strength: 27.33 C Lift Cond Lev (LCL): 937.03 mb = 757.83 m = 2486.30 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 54 at 15 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 1032 51 270 3 3.0 -0.0 | 240 18 15.1 8.9 1 1000 277 285 3 2.9 -0.8 | 242 17 15.0 8.1 2 925 854 330 9 4.5 -7.8 | 266 17 16.6 1.1 3 850 1486 360 15 -0.0 -15.0 | 297 14 12.1 -6.1 4 700 2921 25 21 -8.9 -19.0 | 342 11 3.3 -10.1 5 500 5300 35 29 -16.6 -23.8 | 17 16 -4.5 -14.8 6 400 6790 30 33 -16.5 -28.6 | 13 20 -4.4 -19.7 7 300 8620 25 31 -13.1 -28.1 | 3 19 -1.0 -19.2 8 260 9493 20 27 -9.2 -25.4 | 350 17 2.9 -16.5 9 250 9730 15 25 -6.5 -24.1 | 340 16 5.7 -15.2 10 200 11100 340 21 7.2 -19.7 | 299 22 19.3 -10.8 11 150 12870 315 25 17.7 -17.7 | 286 31 29.8 -8.8 12 100 15370 285 29 28.0 -7.5 | 268 40 40.1 1.4 13 70 17530 290 31 29.1 -10.6 | 272 41 41.3 -1.7 14 50 19540 275 35 34.9 -3.1 | 263 47 47.0 5.9 Wind Parameters Mean winds (0-6000m): 23.7 at 20.1 knts Storm direction: 53.7 at 15.0 knts Shear (0-3000m) pos: 3.9 neg: 0.0 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 105.0 deg Storm rel helicity (0-3000m) pos: 101.1 neg: 0.0 tot: 101.1 m^2/s^2 ave: 33.7 10^-3 m/s^2 rel: 0.95 Storm rel vorticity (0-3000m) horiz: 4.7 stream: 4.5 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 1.31 Bulk Shear: 56.04 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 ------------------------------------------------------------------------------- 500 291 4 244 17| 4.0 0.0 4.0| 17.8 0.0 17.8 35.6 0.95| 4.2 4.0 1000 320 6 255 17| 5.3 0.0 5.3| 47.5 0.0 47.5 47.5 0.96| 5.6 5.4 1500 338 8 266 15| 5.4 0.0 5.4| 71.4 0.0 71.4 47.6 0.95| 6.0 5.7 2000 349 10 275 14| 4.7 0.0 4.7| 81.7 0.0 81.7 40.9 0.94| 5.3 5.0 2500 358 12 284 13| 4.2 0.0 4.2| 92.1 0.0 92.1 36.8 0.95| 5.0 4.7 3000 5 13 292 12| 3.9 0.0 3.9|101.1 0.0 101.1 33.7 0.95| 4.7 4.5 4000 14 16 307 11| 3.4 0.0 3.4|111.3 0.0 111.3 27.8 0.94| 4.0 3.8 5000 20 18 323 10| 3.1 0.0 3.1|122.7 0.0 122.7 24.5 0.93| 3.6 3.3 6000 24 20 337 10| 2.7 0.1 2.8|125.6 -2.6 123.0 20.5 0.85| 3.3 2.8 Wrote GIF file: /home/apache/climate/data/raob//U3955/skewt/U3955.skewt.20251208.12.gif