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 U8661... Searching the city database file for: U8661 ... Date:1200Z 8 DEC 25 Station: U8661 WMO ident: 28661 Latitude: 55.47 Longitude: 65.40 ------------------------------------------------------------------------------- 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 74 -14.7 -18.9 70 4.2 -15.4 30 5 256.7 256.8 256.2 259.0 0.84 1 1000 253 -16.5 -22.5 60 6.0 -17.4 50 19 256.6 256.7 255.8 258.4 0.63 2 992 313 -17.1 -23.1 60 6.0 -18.0 54 20 256.6 256.7 255.7 258.3 0.60 3 961 551 -18.1 -23.1 65 5.0 -18.8 70 22 258.0 258.1 256.8 259.7 0.62 4 954 606 -14.9 -19.9 66 5.0 -15.8 74 23 261.8 261.9 260.2 264.0 0.83 5 934 766 -13.3 -20.3 56 7.0 -14.6 85 24 265.0 265.1 262.7 267.3 0.81 6 925 840 -13.7 -22.7 47 9.0 -15.2 90 25 265.3 265.4 262.6 267.2 0.67 7 869 1316 -13.3 -29.3 25 16.0 -15.7 83 21 270.5 270.6 265.8 271.7 0.39 8 853 1457 -13.9 -30.9 22 17.0 -16.3 80 19 271.3 271.4 266.3 272.3 0.34 9 850 1484 -14.1 -31.1 22 17.0 -16.4 80 19 271.4 271.4 266.3 272.4 0.34 10 813 1820 -17.1 -25.1 50 8.0 -18.4 83 18 271.7 271.8 267.0 273.5 0.61 11 803 1913 -14.9 -21.9 55 7.0 -16.2 84 18 275.0 275.1 269.5 277.4 0.82 12 792 2017 -15.5 -20.5 65 5.0 -16.5 85 18 275.4 275.6 270.0 278.2 0.94 13 700 2938 -21.1 -24.6 73 3.5 -21.7 95 15 279.1 279.2 271.9 281.3 0.74 14 683 3119 -22.3 -25.8 73 3.5 -22.8 98 15 279.7 279.9 272.2 281.8 0.68 15 500 5330 -39.3 -42.4 72 3.1 -39.5 140 9 285.1 285.2 274.4 285.7 0.18 16 407 6707 -50.9 -53.9 70 3.0 -51.0 200 9 287.4 287.4 275.4 287.6 0.06 17 400 6820 -51.3 -54.3 70 3.0 -51.4 205 9 288.3 288.3 275.9 288.5 0.06 18 312 8412 -57.3 -60.5 67 3.2 -57.3 260 17 301.2 301.2 281.9 301.3 0.04 19 300 8660 -57.5 -60.7 67 3.2 -57.5 270 17 304.3 304.3 283.2 304.4 0.04 20 250 9810 -57.1 -60.5 65 3.4 -57.2 275 25 321.2 321.2 289.2 321.4 0.04 21 217 10699 -58.1 -61.6 64 3.5 -58.2 281 28 332.9 332.9 292.6 333.1 0.04 22 200 11210 -58.5 -62.1 63 3.6 -58.6 285 29 340.1 340.1 294.4 340.3 0.04 23 150 13010 -61.1 -64.9 61 3.8 -61.2 290 27 364.8 364.8 299.7 365.0 0.04 24 122 14290 -62.1 -66.0 59 3.9 -62.2 287 33 385.2 385.2 303.1 385.4 0.04 25 100 15510 -65.3 -69.2 58 3.9 -65.4 285 38 401.6 401.6 305.5 401.7 0.03 26 70 17670 -68.5 -72.5 56 4.0 -68.6 275 36 437.8 437.8 309.7 438.0 0.03 27 50 19670 -70.5 -74.5 55 4.0 -70.6 280 48 477.4 477.4 313.2 477.5 0.03 28 43 20564 -71.1 -75.1 55 4.0 -71.2 496.9 496.9 314.7 497.1 0.03 TRP 312 8412 -57.3 -60.5 67 3.2 -57.3 260 17 301.2 301.2 281.9 301.3 0.04 WND Sounding variables and indices 1000-500 mb thick: 5077.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 62.96 % Est. max temperature: -1.30 C = 29.67 F Sfc-Lift cond lev (LCL): 956.33 mb = 587.42 m = 1927.20 ft T: -15.97 C 700-500 lapse rate: 7.61 C/km ThetaE index: 0.68 C Layer 1000.0- 961.0 mb Conv cond level (CCL): 634.57 mb = 3640.25 m = 11942.94 ft Mean mixing ratio: 0.70 g/kg Conv temperature: 9.89 C = 49.80 F Cap Strength: 17.06 C Lifted Index: 19.63 C Risk: None Lifted Index @300 mb: 30.49 C Lifted Index @700 mb: 16.67 C Showalter Index: 10.66 C Risk: None Total Totals Index: 33.40 C Risk: None Vertical Totals Index: 25.20 C Cross Totals Index: 8.20 C K Index: -9.40 Risk: None Sweat Index: 47.00 Risk: None Energy Index: 2.83 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 43.24 J/kg Max Up Vert Vel: 9.30 m/s Conv Inhibition (B-): 39114.73 J/kg Cap Strength: 19.53 C Lift Cond Lev (LCL): 886.19 mb = 1166.49 m = 3827.01 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 126 at 11 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 74 30 5 -2.5 -4.3 | 330 13 6.4 -10.9 1 1000 253 50 19 -14.6 -12.2 | 17 20 -5.6 -18.8 2 925 840 90 25 -25.0 0.0 | 68 17 -16.1 -6.6 3 850 1484 80 19 -18.7 -3.3 | 45 14 -9.8 -9.9 4 700 2938 95 15 -14.9 1.3 | 49 8 -6.0 -5.3 5 500 5330 140 9 -5.8 6.9 | 264 3 3.1 0.3 6 400 6820 205 9 3.8 8.2 | 263 13 12.7 1.6 7 312 8412 260 17 16.7 3.0 | 278 26 25.7 -3.6 8 300 8660 270 17 17.0 -0.0 | 284 27 25.9 -6.6 9 250 9810 275 25 24.9 -2.2 | 285 35 33.8 -8.8 10 200 11210 285 29 28.0 -7.5 | 291 40 36.9 -14.1 11 150 13010 290 27 25.4 -9.2 | 295 38 34.3 -15.8 12 100 15510 285 38 36.7 -9.8 | 290 48 45.6 -16.4 13 70 17670 275 36 35.9 -3.1 | 282 46 44.8 -9.7 14 50 19670 280 48 47.3 -8.3 | 285 58 56.2 -14.9 Wind Parameters Mean winds (0-6000m): 96.4 at 14.8 knts Storm direction: 126.4 at 11.1 knts Shear (0-3000m) pos: 3.1 neg: 0.8 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 80.8 deg Storm rel helicity (0-3000m) pos: 132.3 neg: -23.8 tot: 108.5 m^2/s^2 ave: 36.2 10^-3 m/s^2 rel: 0.55 Storm rel vorticity (0-3000m) horiz: 7.6 stream: 4.1 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 2.71 Bulk Shear: 15.93 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 58 18 20 17| 19.4 0.0 19.4| 94.1 0.0 94.1 188.3 0.92| 23.8 22.0 1000 74 21 42 16| 10.5 0.0 10.5|129.5 -8.5 121.0 121.0 0.82| 17.0 13.9 1500 77 21 45 16| 7.0 1.5 8.6|129.6 -23.8 105.8 70.5 0.61| 13.0 7.9 2000 79 20 46 15| 5.1 1.2 6.2|131.1 -23.8 107.3 53.7 0.59| 10.3 6.1 2500 80 19 46 14| 3.9 0.9 4.8|131.8 -23.8 108.0 43.2 0.57| 8.6 4.9 3000 82 19 46 13| 3.1 0.8 3.9|132.3 -23.8 108.5 36.2 0.55| 7.6 4.1 4000 87 17 48 11| 2.2 0.6 2.8|133.4 -23.8 109.6 27.4 0.51| 6.3 3.2 5000 91 16 48 9| 1.6 0.5 2.0|133.4 -23.9 109.5 21.9 0.44| 5.5 2.4 6000 96 15 49 8| 1.3 0.4 1.7|133.7 -24.8 108.9 18.1 0.38| 5.1 2.0 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20251208.12.gif