UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120112.upa.cvt Date: 1200Z 1 DEC 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 1 DEC 25 Station: U4688 WMO ident: 24688 Latitude: 63.27 Longitude: 143.15 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 278 SFC 936 743 -35.5 -38.4 75 2.9 -35.6 270 1 242.2 242.2 241.9 242.6 0.15 2 925 826 -33.1 -36.0 75 2.9 -33.3 250 3 245.5 245.5 245.0 246.0 0.19 3 850 1435 -21.3 -24.6 75 3.3 -21.7 125 9 263.8 263.9 261.4 265.6 0.61 4 840 1523 -19.3 -22.9 73 3.6 -19.8 124 9 266.8 266.9 263.9 268.9 0.72 5 820 1703 -16.5 -20.0 74 3.5 -17.1 123 9 271.6 271.8 267.6 274.4 0.95 6 700 2881 -21.1 -24.4 75 3.3 -21.6 115 7 279.1 279.2 271.9 281.4 0.76 7 610 3885 -26.1 -29.3 74 3.2 -26.5 142 7 284.6 284.7 274.7 286.3 0.55 8 500 5290 -36.7 -39.7 74 3.0 -36.9 180 7 288.3 288.3 276.2 289.1 0.24 9 423 6428 -44.1 -47.2 71 3.1 -44.2 191 22 293.0 293.0 278.3 293.4 0.13 10 400 6800 -47.5 -50.4 72 2.9 -47.6 195 27 293.3 293.3 278.4 293.6 0.09 11 300 8640 -61.7 -64.7 67 3.0 -61.7 190 48 298.4 298.4 280.7 298.4 0.02 12 286 8937 -64.1 -67.4 64 3.3 -64.1 187 49 299.0 299.0 280.9 299.1 0.02 13 255 9640 -67.7 -70.8 64 3.1 -67.7 180 50 303.7 303.7 282.9 303.7 0.01 14 250 9760 -67.5 -70.5 65 3.0 -67.5 180 46 305.7 305.7 283.7 305.8 0.01 15 200 11120 -62.3 -65.3 67 3.0 -62.3 180 31 334.1 334.1 292.9 334.2 0.03 16 168 12203 -59.3 -62.7 65 3.4 -59.4 180 29 356.2 356.2 298.0 356.4 0.05 17 150 12910 -60.1 -63.4 65 3.3 -60.2 180 27 366.5 366.5 300.0 366.8 0.05 18 144 13163 -61.1 -64.3 66 3.2 -61.2 181 27 369.1 369.1 300.4 369.3 0.05 19 118 14408 -56.7 -59.8 68 3.1 -56.8 183 29 398.8 398.9 305.1 399.3 0.10 20 100 15450 -58.5 -61.9 65 3.4 -58.6 185 31 414.7 414.7 307.2 415.2 0.09 21 85 16475 -56.3 -59.5 67 3.2 -56.5 187 33 438.9 438.9 309.8 439.7 0.15 22 70 17700 -58.3 -61.7 65 3.4 -58.5 190 35 459.7 459.7 311.8 460.4 0.14 23 64 18259 -59.9 -63.3 64 3.4 -60.1 187 37 468.1 468.1 312.5 468.8 0.12 24 58 18875 -56.9 -60.1 67 3.2 -57.1 184 39 488.2 488.3 314.2 489.4 0.20 25 50 19810 -57.7 -61.0 66 3.3 -58.0 180 42 507.5 507.6 315.5 508.8 0.21 26 35 22072 -58.5 -62.0 64 3.5 -58.9 180 56 559.9 560.0 318.8 561.7 0.26 27 30 23060 -52.7 -56.2 66 3.5 -53.4 180 62 601.0 601.2 320.9 605.6 0.63 28 26 23993 -49.7 -53.3 66 3.6 -50.7 180 67 634.6 635.0 322.4 642.6 1.04 29 22 25083 -52.1 -55.5 67 3.4 -52.9 180 73 658.5 658.9 323.3 666.1 0.94 30 20 25710 -45.9 -49.5 67 3.6 -47.4 180 77 695.7 696.6 324.8 713.2 2.10 31 19 26054 -44.1 -47.9 66 3.8 -45.9 711.6 712.7 325.5 734.1 2.65 32 17 26800 -44.9 -48.6 66 3.7 -46.6 732.0 733.2 326.1 756.1 2.74 33 13 28631 -36.3 -40.0 69 3.7 -38.9 820.1 824.7 329.6 910.8 9.17 34 12 29186 -37.4 -41.1 68 3.7 -40.1 175 101 835.2 839.7 329.9 924.4 8.83 35 10 30440 -39.9 -43.7 67 3.8 -42.6 870.6 874.9 330.4 955.9 8.05 36 8.5 31550 -39.9 -43.7 67 3.8 -42.7 912.0 917.3 331.5 1018.3 9.49 TRP 255 9640 -67.7 -70.8 64 3.1 -67.7 180 50 303.7 303.7 282.9 303.7 0.01 WND 12 29186 -37.4 -41.1 68 3.7 -40.1 175 101 835.2 839.7 329.9 924.4 8.83 Sounding variables and indices 1000-500 mb thick: 5012.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 74.38 % Est. max temperature: -4.65 C = 23.63 F Sfc-Lift cond lev (LCL): 890.42 mb = 1100.40 m = 3610.18 ft T: -27.78 C 700-500 lapse rate: 6.48 C/km ThetaE index: 0.00 C Layer 936.0-55782952777075916800.0 mb Conv cond level (CCL): 936.00 mb = 742.58 m = 2436.24 ft Mean mixing ratio: 0.42 g/kg Conv temperature: -27.69 C = -17.84 F Cap Strength: 24.68 C Lifted Index: 26.27 C Risk: None Lifted Index @300 mb: 29.80 C Lifted Index @700 mb: 20.95 C Showalter Index: 18.77 C Risk: None Total Totals Index: 27.50 C Risk: None Vertical Totals Index: 15.40 C Cross Totals Index: 12.10 C K Index: -12.50 Risk: None Sweat Index: 25.00 Risk: None Energy Index: 5.08 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 80.94 J/kg Max Up Vert Vel: 12.72 m/s Conv Inhibition (B-): 77375.17 J/kg Cap Strength: 26.23 C Lift Cond Lev (LCL): 862.37 mb = 1330.91 m = 4366.46 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 193 at 7 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 ---------------------------------------------------------- 0 936 743 270 1 1.0 -0.0 | 5 7 -0.6 -6.9 1 925 826 250 3 2.8 1.0 | 349 6 1.2 -5.9 2 850 1435 125 9 -7.4 5.2 | 79 9 -9.0 -1.8 3 700 2881 115 7 -6.3 3.0 | 63 9 -8.0 -4.0 4 500 5290 180 7 0.0 7.0 | 92 2 -1.6 0.1 5 400 6800 195 27 7.0 26.1 | 196 20 5.4 19.1 6 300 8640 190 48 8.3 47.3 | 189 41 6.7 40.3 7 255 9640 180 50 0.0 50.0 | 178 43 -1.6 43.1 8 250 9760 180 46 0.0 46.0 | 178 39 -1.6 39.1 9 200 11120 180 31 0.0 31.0 | 176 24 -1.6 24.1 10 150 12910 180 27 0.0 27.0 | 175 20 -1.6 20.1 11 100 15450 185 31 2.7 30.9 | 183 24 1.1 23.9 12 70 17700 190 35 6.1 34.5 | 189 28 4.4 27.5 13 50 19810 180 42 0.0 42.0 | 177 35 -1.6 35.1 14 30 23060 180 62 0.0 62.0 | 178 55 -1.6 55.1 15 20 25710 180 77 0.0 77.0 | 179 70 -1.6 70.1 Wind Parameters Mean winds (0-6000m): 163.2 at 9.5 knts Storm direction: 193.2 at 7.1 knts Shear (0-3000m) pos: 0.5 neg: 1.4 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 69.5 deg Storm rel helicity (0-3000m) pos: 4.8 neg: -11.9 tot: -7.1 m^2/s^2 ave: -2.4 10^-3 m/s^2 rel: -0.03 Storm rel vorticity (0-3000m) horiz: 3.8 stream: -0.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 17.29 Bulk Shear: 4.68 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 ------------------------------------------------------------------------------- 500 192 5 15 3| 0.0 7.6 7.6| 1.8 -4.0 -2.2 -4.4 0.14| 11.2 1.5 1000 135 6 69 7| 0.0 4.9 4.9| 1.8 -7.5 -5.7 -5.7 -0.02| 8.9 -0.1 1500 129 7 70 8| 0.0 3.0 3.0| 1.8 -9.5 -7.8 -5.2 -0.06| 6.2 -0.4 2000 126 7 70 8| 0.0 2.1 2.1| 1.8 -11.5 -9.7 -4.9 -0.10| 4.9 -0.5 2500 124 7 69 8| 0.2 1.7 1.9| 3.2 -11.9 -8.7 -3.5 -0.07| 4.2 -0.3 3000 126 7 69 8| 0.5 1.4 1.9| 4.8 -11.9 -7.1 -2.4 -0.03| 3.8 -0.1 4000 132 7 72 7| 0.8 1.0 1.8| 6.2 -11.9 -5.6 -1.4 0.02| 3.2 0.1 5000 143 7 80 6| 1.3 0.8 2.1| 9.3 -11.9 -2.6 -0.5 0.13| 3.4 0.5 6000 163 10 116 5| 2.2 0.7 2.9| 22.8 -11.9 10.9 1.8 0.18| 4.0 0.7 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251201.12.gif