UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026010512.upa.cvt Date: 1200Z 5 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 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 168 1 925 688 180 1 SFC 918 738 -47.7 -50.4 74 2.7 -47.7 180 1 231.0 231.0 230.9 231.1 0.04 3 858 1196 -38.3 -41.6 71 3.3 -38.4 145 3 245.4 245.4 244.7 245.7 0.12 4 850 1261 -37.3 -40.6 71 3.3 -37.4 140 3 247.1 247.1 246.3 247.4 0.13 5 767 1984 -25.1 -29.1 69 4.0 -25.5 143 8 267.6 267.7 263.9 268.9 0.45 6 720 2443 -22.9 -26.9 70 4.0 -23.4 144 12 274.9 275.0 269.1 276.6 0.59 7 700 2648 -24.3 -28.2 70 3.9 -24.8 145 13 275.6 275.7 269.4 277.2 0.54 8 688 2773 -25.1 -28.8 71 3.7 -25.6 140 13 276.1 276.1 269.7 277.6 0.51 9 647 3217 -25.5 -29.1 72 3.6 -25.9 124 11 280.5 280.6 272.4 282.1 0.53 10 500 5040 -35.9 -39.4 70 3.5 -36.1 55 5 289.3 289.3 276.7 290.1 0.25 11 466 5528 -38.7 -42.3 69 3.6 -38.9 57 8 291.7 291.7 277.8 292.3 0.20 12 400 6560 -47.1 -50.5 68 3.4 -47.2 60 13 293.8 293.8 278.7 294.1 0.09 13 354 7355 -53.7 -57.4 64 3.7 -53.8 45 14 295.3 295.3 279.3 295.5 0.05 14 300 8400 -60.9 -64.5 62 3.6 -60.9 25 15 299.5 299.5 281.1 299.6 0.02 15 292 8570 -61.9 -65.3 64 3.4 -61.9 30 15 300.4 300.4 281.5 300.5 0.02 16 291 8592 -61.9 -65.3 64 3.4 -61.9 30 15 300.7 300.7 281.7 300.8 0.02 17 255 9432 -55.7 -59.4 63 3.7 -55.8 43 12 321.4 321.4 289.2 321.6 0.05 18 250 9560 -56.1 -59.7 64 3.6 -56.2 45 11 322.7 322.7 289.6 322.9 0.05 19 200 10980 -51.9 -55.8 63 3.9 -52.1 100 7 350.6 350.6 296.8 351.0 0.10 20 153 12730 -48.9 -53.1 61 4.2 -49.2 147 5 383.6 383.7 302.9 384.5 0.18 21 150 12860 -49.1 -53.3 61 4.2 -49.4 150 5 385.5 385.5 303.2 386.3 0.18 22 116 14543 -50.5 -54.6 62 4.1 -50.8 217 6 412.3 412.3 306.9 413.3 0.20 23 100 15520 -46.5 -50.7 62 4.2 -47.0 255 7 437.9 438.0 309.8 439.8 0.36 24 70 17870 -47.9 -52.2 61 4.3 -48.5 260 17 481.9 482.0 313.8 484.4 0.44 25 62 18666 -48.9 -53.2 61 4.3 -49.5 267 19 496.7 496.8 314.9 499.3 0.44 26 50 20080 -47.1 -51.4 61 4.3 -47.9 280 23 532.5 532.7 317.3 536.8 0.67 27 49 20215 -46.1 -50.3 62 4.2 -47.0 281 24 537.9 538.2 317.7 543.0 0.78 28 35 22436 -50.9 -54.9 62 4.0 -51.7 294 45 579.7 580.0 319.9 584.2 0.63 29 33 22823 -48.1 -52.5 60 4.4 -49.2 296 48 597.0 597.3 320.7 603.5 0.90 30 30 23450 -50.1 -54.3 61 4.2 -51.1 300 54 608.1 608.4 321.2 613.9 0.80 31 20 26080 -52.9 -57.3 59 4.4 -54.0 310 69 674.3 674.6 323.8 681.1 0.83 32 15 27929 -54.3 -58.7 58 4.4 -55.5 312 81 727.4 727.8 325.6 735.7 0.93 33 12 29342 -59.3 -63.6 57 4.3 -60.2 314 90 757.6 757.9 326.3 763.5 0.62 34 11 29886 -59.9 -64.1 58 4.2 -60.8 315 93 774.7 774.9 326.8 780.7 0.63 35 10 30480 -60.5 -64.6 58 4.1 -61.4 315 93 793.7 794.0 327.3 800.1 0.65 36 9.3 30933 -59.5 -63.8 57 4.3 -60.6 814.2 814.6 327.8 822.0 0.77 TRP 292 8570 -61.9 -65.3 64 3.4 -61.9 30 15 300.4 300.4 281.5 300.5 0.02 WND 11 29886 -59.9 -64.1 58 4.2 -60.8 315 93 774.7 774.9 326.8 780.7 0.63 Sounding variables and indices 1000-500 mb thick: 4872.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 70.83 % Est. max temperature: -12.28 C = 9.90 F Sfc-Lift cond lev (LCL): 874.20 mb = 1069.50 m = 3508.80 ft T: -40.90 C 700-500 lapse rate: 4.85 C/km ThetaE index: 0.00 C Layer 918.0- 0.0 mb Conv cond level (CCL): 918.00 mb = 738.41 m = 2422.56 ft Mean mixing ratio: 0.11 g/kg Conv temperature: -41.23 C = -42.22 F Cap Strength: 32.84 C Lifted Index: 37.67 C Risk: None Lifted Index @300 mb: 39.77 C Lifted Index @700 mb: 29.18 C Showalter Index: 34.33 C Risk: None Total Totals Index: -6.10 C Risk: None Vertical Totals Index: -1.40 C Cross Totals Index: -4.70 C K Index: -45.90 Risk: None Sweat Index: 11.00 Risk: None Energy Index: 9.23 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 92.85 J/kg Max Up Vert Vel: 13.63 m/s Conv Inhibition (B-): 77760.27 J/kg Cap Strength: 37.39 C Lift Cond Lev (LCL): 837.83 mb = 1362.51 m = 4470.12 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 137 at 6 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 ---------------------------------------------------------- 0 918 738 180 1 0.0 1.0 | 310 6 4.2 -3.5 1 850 1261 140 3 -1.9 2.3 | 314 3 2.3 -2.2 2 700 2648 145 13 -7.5 10.6 | 152 7 -3.2 6.1 3 500 5040 55 5 -4.1 -2.9 | 359 7 0.1 -7.4 4 400 6560 60 13 -11.3 -6.5 | 32 13 -7.0 -11.0 5 300 8400 25 15 -6.3 -13.6 | 7 18 -2.1 -18.1 6 292 8570 30 15 -7.5 -13.0 | 11 18 -3.3 -17.5 7 250 9560 45 11 -7.8 -7.8 | 16 13 -3.5 -12.3 8 200 10980 100 7 -6.9 1.2 | 39 4 -2.6 -3.3 9 150 12860 150 5 -2.5 4.3 | 276 2 1.7 -0.2 10 100 15520 255 7 6.8 1.8 | 284 11 11.0 -2.7 11 70 17870 260 17 16.7 3.0 | 274 21 21.0 -1.6 12 50 20080 280 23 22.7 -4.0 | 288 28 26.9 -8.5 13 30 23450 300 54 46.8 -27.0 | 302 60 51.0 -31.5 14 20 26080 310 69 52.9 -44.4 | 311 75 57.1 -48.9 15 11 29886 315 93 65.8 -65.8 | 315 99 70.0 -70.3 16 10 30480 315 93 65.8 -65.8 | 315 99 70.0 -70.3 Wind Parameters Mean winds (0-6000m): 106.7 at 8.3 knts Storm direction: 136.7 at 6.2 knts Shear (0-3000m) pos: 0.6 neg: 1.3 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 115.4 deg Storm rel helicity (0-3000m) pos: 0.4 neg: -13.9 tot: -13.6 m^2/s^2 ave: -4.5 10^-3 m/s^2 rel: -0.53 Storm rel vorticity (0-3000m) horiz: 3.6 stream: -1.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 14.42 Bulk Shear: 6.44 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 ------------------------------------------------------------------------------- 500 150 2 311 4| 0.0 2.3 2.3| 0.4 -0.4 -0.0 -0.0 0.04| 2.4 0.1 1000 144 3 309 3| 0.0 2.9 2.9| 0.4 -0.8 -0.4 -0.4 -0.26| 3.1 -0.8 1500 144 5 293 1| 1.2 2.0 3.2| 0.4 -1.2 -0.9 -0.6 -0.28| 3.3 -0.9 2000 144 7 208 1| 0.9 2.2 3.1| 0.4 -2.7 -2.4 -1.2 -0.27| 3.4 -0.9 2500 141 8 161 1| 0.7 1.6 2.3| 0.4 -8.8 -8.5 -3.4 -0.43| 3.6 -1.6 3000 137 8 137 2| 0.6 1.3 1.9| 0.4 -13.9 -13.6 -4.5 -0.53| 3.6 -1.9 4000 132 8 116 2| 0.5 0.9 1.4| 0.4 -23.3 -23.0 -5.7 -0.63| 3.5 -2.2 5000 124 8 83 2| 0.5 0.8 1.3| 6.7 -26.1 -19.4 -3.9 -0.48| 3.3 -1.6 6000 107 8 60 4| 0.6 0.8 1.4| 14.7 -28.0 -13.2 -2.2 -0.36| 3.2 -1.2 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260105.12.gif