UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120400.upa.cvt Date: 0000Z 4 DEC 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 4 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 149 1 925 694 200 1 SFC 919 739 -36.7 -39.4 76 2.7 -36.8 200 1 242.2 242.3 241.9 242.6 0.14 3 850 1287 -26.7 -29.7 76 3.0 -27.0 45 5 258.2 258.2 256.5 259.3 0.38 4 808 1659 -20.1 -23.5 74 3.4 -20.6 63 9 269.0 269.1 265.3 271.0 0.71 5 775 1971 -18.1 -21.3 76 3.2 -18.7 78 12 274.3 274.5 269.2 277.0 0.90 6 717 2551 -21.1 -24.1 77 3.0 -21.6 106 17 277.2 277.3 270.8 279.5 0.76 7 700 2728 -22.5 -25.4 77 2.9 -22.9 115 19 277.6 277.7 270.9 279.6 0.69 8 591 3943 -31.7 -34.5 76 2.8 -31.9 133 22 280.6 280.7 272.2 281.7 0.35 9 514 4919 -35.7 -38.8 73 3.1 -35.9 147 25 287.2 287.3 275.7 288.1 0.26 10 500 5110 -37.5 -40.4 74 2.9 -37.7 150 25 287.3 287.4 275.6 288.1 0.23 11 400 6610 -50.5 -53.6 70 3.1 -50.5 150 29 289.4 289.4 276.5 289.6 0.06 12 377 6993 -54.1 -57.2 69 3.1 -54.2 153 29 289.5 289.5 276.5 289.7 0.04 13 300 8420 -65.3 -68.5 64 3.2 -65.3 165 31 293.3 293.3 278.3 293.3 0.01 14 298 8461 -65.7 -68.9 64 3.2 -65.7 165 31 293.3 293.3 278.3 293.3 0.01 15 288 8668 -66.5 -69.5 66 3.0 -66.5 165 31 295.0 295.0 279.1 295.1 0.01 16 286 8711 -66.5 -69.5 66 3.0 -66.5 166 31 295.6 295.6 279.4 295.6 0.01 17 250 9540 -59.7 -63.0 65 3.3 -59.7 185 23 317.3 317.3 287.9 317.4 0.03 18 246 9640 -58.3 -61.5 67 3.2 -58.3 184 23 320.9 320.9 289.0 321.0 0.04 19 200 10930 -59.3 -62.7 65 3.4 -59.3 170 25 338.9 338.9 294.1 339.0 0.04 20 199 10961 -59.5 -62.9 64 3.4 -59.6 170 25 339.0 339.0 294.1 339.2 0.04 21 176 11737 -55.1 -58.6 65 3.5 -55.2 179 26 358.4 358.4 298.4 358.7 0.08 22 150 12750 -58.3 -61.7 65 3.4 -58.4 190 27 369.6 369.6 300.5 369.9 0.06 23 148 12835 -58.9 -62.4 64 3.5 -59.0 190 27 370.0 370.0 300.6 370.3 0.06 24 100 15310 -59.5 -63.1 63 3.6 -59.6 200 33 412.8 412.8 306.9 413.2 0.08 25 70 17540 -58.7 -62.4 62 3.7 -58.9 200 44 458.8 458.8 311.7 459.5 0.12 26 50 19660 -57.1 -60.6 64 3.5 -57.4 200 54 508.9 509.0 315.7 510.3 0.22 27 41 20916 -56.9 -60.4 64 3.5 -57.2 198 71 539.1 539.2 317.6 541.0 0.27 28 38 21403 -52.3 -56.0 64 3.7 -52.9 197 78 562.7 562.9 319.0 566.2 0.51 29 30 22940 -49.9 -53.7 64 3.8 -50.8 195 99 608.6 608.9 321.3 614.9 0.86 30 25 24141 -47.7 -51.5 65 3.8 -48.9 195 100 647.5 648.0 323.0 657.9 1.33 31 25 24141 -46.1 -49.8 66 3.7 -47.4 195 100 652.1 652.7 323.2 664.8 1.62 32 23 24702 -42.1 -46.7 61 4.6 -44.2 195 100 679.6 680.6 324.4 699.9 2.50 33 20 25660 -37.1 -43.1 54 6.0 -40.5 195 101 722.6 724.5 326.2 759.3 4.27 34 19 26016 -36.7 -43.7 48 7.0 -40.7 734.5 736.4 326.5 771.4 4.21 35 15 27651 -38.3 -50.3 27 12.0 -44.5 780.6 781.8 327.4 804.8 2.55 36 14 28125 -40.1 -52.1 27 12.0 -46.0 190 126 789.9 791.0 327.5 811.3 2.21 37 13 28629 -42.1 -54.1 26 12.0 -47.6 800.1 801.0 327.7 818.6 1.88 38 11 29760 -42.9 -54.9 26 12.0 -48.6 836.3 837.3 328.5 857.1 2.02 39 10 30410 -38.3 -50.3 27 12.0 -45.5 876.6 878.6 329.8 917.8 3.84 40 9.8 30549 -37.7 -49.7 27 12.0 -45.1 883.9 886.2 329.9 929.4 4.20 TRP 288 8668 -66.5 -69.5 66 3.0 -66.5 165 31 295.0 295.0 279.1 295.1 0.01 WND 14 28125 -40.1 -52.1 27 12.0 -46.0 190 126 789.9 791.0 327.5 811.3 2.21 Sounding variables and indices 1000-500 mb thick: 4961.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.12 inches Sfc-500 mean rel hum: 75.68 % Est. max temperature: -5.08 C = 22.86 F Sfc-Lift cond lev (LCL): 877.13 mb = 1066.32 m = 3498.40 ft T: -30.73 C 700-500 lapse rate: 6.30 C/km Conv cond level (CCL): 919.00 mb = 738.75 m = 2423.68 ft Mean mixing ratio: 0.33 g/kg Conv temperature: -30.28 C = -22.51 F Cap Strength: 26.68 C Lifted Index: 26.58 C Risk: None Lifted Index @300 mb: 27.14 C Lifted Index @700 mb: 20.72 C Showalter Index: 23.07 C Risk: None Total Totals Index: 18.60 C Risk: None Vertical Totals Index: 10.80 C Cross Totals Index: 7.80 C K Index: -21.80 Risk: None Sweat Index: 35.00 Risk: None Energy Index: 6.23 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 84.44 J/kg Max Up Vert Vel: 13.00 m/s Conv Inhibition (B-): 76661.51 J/kg Cap Strength: 26.69 C Lift Cond Lev (LCL): 843.56 mb = 1342.86 m = 4405.67 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 167 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 ---------------------------------------------------------- 0 919 739 200 1 0.3 0.9 | 344 14 3.7 -13.2 1 850 1287 45 5 -3.5 -3.5 | 0 18 -0.2 -17.7 2 700 2728 115 19 -17.2 8.0 | 66 15 -13.8 -6.1 3 500 5110 150 25 -12.5 21.7 | 129 12 -9.1 7.5 4 400 6610 150 29 -14.5 25.1 | 135 16 -11.1 10.9 5 300 8420 165 31 -8.0 29.9 | 164 16 -4.6 15.8 6 288 8668 165 31 -8.0 29.9 | 164 16 -4.6 15.8 7 250 9540 185 23 2.0 22.9 | 212 10 5.4 8.7 8 200 10930 170 25 -4.3 24.6 | 175 10 -1.0 10.4 9 150 12750 190 27 4.7 26.6 | 213 15 8.1 12.4 10 100 15310 200 33 11.3 31.0 | 221 22 14.7 16.8 11 70 17540 200 44 15.0 41.3 | 214 33 18.4 27.2 12 50 19660 200 54 18.5 50.7 | 211 43 21.9 36.6 13 30 22940 195 99 25.6 95.6 | 200 86 29.0 81.5 14 20 25660 195 101 26.1 97.6 | 199 88 29.5 83.4 Wind Parameters Mean winds (0-6000m): 136.6 at 19.4 knts Storm direction: 166.6 at 14.6 knts Shear (0-3000m) pos: 3.5 neg: 0.9 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 104.1 deg Storm rel helicity (0-3000m) pos: 124.6 neg: -0.1 tot: 124.5 m^2/s^2 ave: 41.5 10^-3 m/s^2 rel: 0.83 Storm rel vorticity (0-3000m) horiz: 6.0 stream: 5.0 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 1.69 Bulk Shear: 49.97 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 51 3 356 16| 0.0 5.6 5.6| 13.7 -0.1 13.6 27.2 0.51| 8.1 4.1 1000 57 5 2 17| 2.5 2.8 5.3| 36.1 -0.1 36.0 36.0 0.62| 7.1 4.4 1500 76 7 12 16| 3.6 1.9 5.5| 69.4 -0.1 69.3 46.2 0.75| 7.1 5.3 2000 99 9 25 14| 4.4 1.4 5.8|104.3 -0.1 104.2 52.1 0.81| 7.5 6.1 2500 106 11 34 13| 3.8 1.1 5.0|114.5 -0.1 114.4 45.8 0.82| 6.6 5.4 3000 112 13 43 13| 3.5 0.9 4.5|124.6 -0.1 124.5 41.5 0.83| 6.0 5.0 4000 123 16 59 11| 3.1 0.7 3.8|145.1 -0.1 145.0 36.2 0.85| 5.3 4.5 5000 131 18 75 10| 2.7 0.6 3.2|154.8 -0.1 154.7 30.9 0.84| 4.7 3.9 6000 137 19 90 10| 2.3 0.5 2.8|159.6 -0.1 159.5 26.6 0.82| 4.1 3.4 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251204.00.gif