UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026010500.upa.cvt Date: 0000Z 5 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 5 JAN 26 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 158 1 925 690 100 1 SFC 918 741 -42.7 -45.4 75 2.7 -42.8 100 1 236.2 236.2 236.0 236.4 0.07 3 850 1272 -34.3 -38.3 67 4.0 -34.5 95 5 250.2 250.2 249.2 250.7 0.16 4 803 1675 -27.7 -31.8 68 4.1 -28.0 99 10 261.3 261.4 258.9 262.3 0.33 5 773 1950 -23.9 -28.1 68 4.2 -24.4 102 13 268.3 268.4 264.4 269.7 0.49 6 705 2623 -23.1 -27.0 70 3.9 -23.7 109 20 276.3 276.4 270.0 278.1 0.59 7 700 2675 -23.5 -27.4 70 3.9 -24.0 110 21 276.5 276.6 270.0 278.2 0.58 8 644 3278 -28.3 -32.0 70 3.7 -28.7 114 18 277.7 277.8 270.5 278.9 0.41 9 619 3563 -25.3 -29.1 70 3.8 -25.8 115 16 284.3 284.4 274.6 286.0 0.56 10 502 5052 -34.7 -38.4 69 3.7 -35.0 125 7 290.4 290.4 277.3 291.3 0.28 11 500 5080 -34.9 -38.6 69 3.7 -35.2 125 7 290.5 290.5 277.3 291.4 0.27 12 400 6600 -46.3 -49.7 68 3.4 -46.4 110 7 294.8 294.8 279.1 295.2 0.10 13 300 8450 -59.7 -63.5 61 3.8 -59.7 105 7 301.2 301.2 281.9 301.3 0.02 14 293 8599 -60.5 -64.1 62 3.6 -60.5 110 9 302.1 302.1 282.3 302.2 0.02 15 290 8664 -60.7 -64.3 62 3.6 -60.7 109 9 302.7 302.7 282.5 302.8 0.02 16 250 9600 -59.7 -63.5 61 3.8 -59.7 90 9 317.3 317.3 287.9 317.4 0.03 17 221 10373 -54.1 -58.1 61 4.0 -54.2 101 8 337.3 337.3 293.7 337.6 0.07 18 200 11010 -53.1 -57.1 62 4.0 -53.2 110 7 348.7 348.7 296.4 349.0 0.08 19 175 11879 -49.9 -54.0 62 4.1 -50.1 101 6 367.5 367.6 300.2 368.1 0.14 20 150 12890 -49.5 -53.6 62 4.1 -49.7 90 5 384.8 384.8 303.1 385.6 0.17 21 100 15550 -46.9 -50.9 64 4.0 -47.4 220 5 437.1 437.2 309.8 439.0 0.36 22 70 17910 -46.5 -50.5 64 4.0 -47.1 250 7 484.9 485.1 314.1 488.0 0.53 23 64 18504 -46.5 -50.5 64 4.0 -47.2 255 10 497.5 497.7 315.0 501.0 0.58 24 53 19741 -51.3 -55.0 65 3.7 -51.8 267 15 513.9 514.1 316.1 516.5 0.41 25 50 20120 -50.7 -54.6 63 3.9 -51.2 270 17 524.0 524.1 316.7 526.9 0.46 26 44 20959 -49.7 -53.8 62 4.1 -50.4 273 20 546.0 546.1 318.1 549.8 0.58 27 42 21263 -52.7 -56.7 62 4.0 -53.2 273 20 545.8 546.0 318.0 548.7 0.42 28 33 22823 -53.7 -57.8 61 4.1 -54.4 278 25 582.2 582.3 319.9 585.5 0.47 29 30 23440 -51.9 -55.9 62 4.0 -52.7 280 27 603.2 603.4 321.0 608.0 0.66 30 29 23660 -50.7 -54.7 62 4.0 -51.6 281 28 612.3 612.6 321.4 618.2 0.78 31 20 26050 -56.5 -60.2 63 3.7 -57.2 295 42 663.2 663.5 323.3 667.9 0.58 32 17 27087 -52.3 -56.4 61 4.1 -53.5 299 48 708.3 708.7 325.0 717.7 1.09 33 15 27888 -55.1 -59.1 61 4.0 -56.1 301 52 724.8 725.1 325.4 732.7 0.88 34 11 29864 -54.9 -58.9 61 4.0 -56.2 308 63 792.7 793.3 327.4 804.8 1.23 35 10 30470 -56.2 -60.0 62 3.9 -57.4 310 66 809.9 810.5 327.8 821.7 1.18 36 9.6 30729 -56.7 -60.5 62 3.8 -57.9 817.4 818.0 327.9 829.1 1.15 TRP 293 8599 -60.5 -64.1 62 3.6 -60.5 110 9 302.1 302.1 282.3 302.2 0.02 WND 10 30470 -56.2 -60.0 62 3.9 -57.4 310 66 809.9 810.5 327.8 821.7 1.18 Sounding variables and indices 1000-500 mb thick: 4922.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 69.63 % Est. max temperature: -10.79 C = 12.57 F Sfc-Lift cond lev (LCL): 875.23 mb = 1070.34 m = 3511.57 ft T: -37.49 C 700-500 lapse rate: 4.74 C/km Conv cond level (CCL): 918.00 mb = 741.44 m = 2432.52 ft Mean mixing ratio: 0.15 g/kg Conv temperature: -38.41 C = -37.15 F Cap Strength: 35.48 C Lifted Index: 35.51 C Risk: None Lifted Index @300 mb: 38.25 C Lifted Index @700 mb: 26.58 C Showalter Index: 32.67 C Risk: None Total Totals Index: -2.80 C Risk: None Vertical Totals Index: 0.60 C Cross Totals Index: -3.40 C K Index: -41.60 Risk: None Sweat Index: 17.00 Risk: None Energy Index: 8.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 78.27 J/kg Max Up Vert Vel: 12.51 m/s Conv Inhibition (B-): 76743.72 J/kg Cap Strength: 35.35 C Lift Cond Lev (LCL): 827.21 mb = 1464.54 m = 4804.86 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 142 at 8 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 ---------------------------------------------------------- 0 918 741 100 1 -1.0 0.2 | 327 7 4.0 -6.2 1 850 1272 95 5 -5.0 0.4 | 0 6 -0.0 -5.9 2 700 2675 110 21 -19.7 7.2 | 93 15 -14.8 0.8 3 500 5080 125 7 -5.7 4.0 | 18 2 -0.8 -2.4 4 400 6600 110 7 -6.6 2.4 | 22 4 -1.6 -4.0 5 300 8450 105 7 -6.8 1.8 | 21 5 -1.8 -4.6 6 293 8599 110 9 -8.5 3.1 | 47 5 -3.5 -3.3 7 250 9600 90 9 -9.0 0.0 | 32 8 -4.0 -6.4 8 200 11010 110 7 -6.6 2.4 | 22 4 -1.6 -4.0 9 150 12890 90 5 -5.0 0.0 | 0 6 -0.0 -6.4 10 100 15550 220 5 3.2 3.8 | 287 9 8.2 -2.5 11 70 17910 250 7 6.6 2.4 | 289 12 11.5 -4.0 12 50 20120 270 17 17.0 -0.0 | 286 23 22.0 -6.4 13 30 23440 280 27 26.6 -4.7 | 289 33 31.6 -11.1 14 20 26050 295 42 38.1 -17.7 | 299 49 43.0 -24.1 15 10 30470 310 66 50.6 -42.4 | 311 74 55.5 -48.8 Wind Parameters Mean winds (0-6000m): 112.0 at 10.8 knts Storm direction: 142.0 at 8.1 knts Shear (0-3000m) pos: 1.8 neg: 0.6 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 124.5 deg Storm rel helicity (0-3000m) pos: 35.7 neg: -0.7 tot: 35.0 m^2/s^2 ave: 11.7 10^-3 m/s^2 rel: 0.62 Storm rel vorticity (0-3000m) horiz: 4.5 stream: 2.8 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 9.12 Bulk Shear: 8.58 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 96 3 341 6| 0.0 3.9 3.9| 5.8 0.0 5.8 11.6 0.90| 3.9 3.5 1000 98 5 0 6| 2.9 1.9 4.8| 14.6 0.0 14.6 14.6 0.94| 4.8 4.6 1500 102 8 28 5| 3.9 1.3 5.2| 24.6 0.0 24.6 16.4 0.87| 5.2 4.6 2000 106 10 56 6| 4.1 1.0 5.1| 35.4 0.0 35.4 17.7 0.81| 5.2 4.2 2500 108 12 68 7| 2.7 0.8 3.5| 35.7 -0.0 35.7 14.3 0.71| 4.8 3.4 3000 109 13 73 7| 1.8 0.6 2.4| 35.7 -0.7 35.0 11.7 0.62| 4.5 2.8 4000 111 13 75 7| 0.7 0.5 1.2| 35.7 -3.9 31.8 8.0 0.43| 4.2 1.8 5000 112 12 70 6| 0.4 0.4 0.8| 35.8 -5.1 30.7 6.1 0.34| 3.6 1.2 6000 112 11 65 6| 0.3 0.4 0.7| 35.8 -5.1 30.7 5.1 0.33| 3.1 1.0 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260105.00.gif