UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026010412.upa.cvt Date: 1200Z 4 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 4 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 188 1 925 718 60 1 SFC 922 740 -43.5 -46.5 72 3.0 -43.6 60 1 235.0 235.1 234.8 235.2 0.06 3 919 762 -44.7 -49.1 61 4.4 -44.8 57 1 234.0 234.0 233.9 234.2 0.05 4 895 941 -43.1 -47.6 61 4.5 -43.2 31 4 237.5 237.5 237.1 237.6 0.06 5 850 1295 -36.5 -40.8 64 4.3 -36.7 340 9 247.9 247.9 247.1 248.3 0.13 6 769 2007 -24.1 -28.3 68 4.2 -24.6 6 8 268.5 268.6 264.6 269.9 0.48 7 729 2394 -26.3 -30.0 71 3.7 -26.7 20 7 270.2 270.3 265.7 271.5 0.43 8 700 2689 -24.3 -28.2 70 3.9 -24.8 30 7 275.6 275.7 269.4 277.2 0.54 9 676 2944 -20.9 -24.7 71 3.8 -21.5 40 7 282.1 282.3 273.7 284.5 0.76 10 648 3255 -21.5 -25.1 73 3.6 -22.1 52 7 284.9 285.0 275.2 287.3 0.77 11 500 5110 -34.5 -38.0 70 3.5 -34.8 125 7 291.0 291.0 277.6 291.9 0.29 12 487 5293 -35.5 -38.9 71 3.4 -35.8 126 7 291.9 292.0 278.1 292.8 0.27 13 400 6630 -45.9 -49.2 69 3.3 -46.0 130 11 295.3 295.4 279.4 295.7 0.11 14 354 7434 -52.5 -55.8 67 3.3 -52.6 134 12 297.0 297.0 280.1 297.2 0.06 15 309 8304 -58.3 -61.9 63 3.6 -58.3 139 13 300.6 300.6 281.6 300.7 0.03 16 300 8490 -58.9 -62.5 63 3.6 -58.9 140 13 302.3 302.3 282.4 302.4 0.03 17 279 8943 -60.7 -64.2 63 3.5 -60.7 155 7 306.1 306.1 283.8 306.2 0.02 18 273 9079 -60.7 -64.2 63 3.5 -60.7 144 7 308.0 308.0 284.6 308.1 0.02 19 250 9630 -57.9 -61.6 62 3.7 -58.0 100 9 320.0 320.0 288.8 320.1 0.04 20 206 10869 -52.3 -56.0 64 3.7 -52.4 78 6 347.0 347.0 296.1 347.4 0.09 21 200 11060 -52.5 -56.3 63 3.8 -52.7 75 5 349.6 349.7 296.6 350.0 0.09 22 150 12930 -49.3 -53.3 63 4.0 -49.6 85 5 385.1 385.2 303.2 386.0 0.18 23 100 15600 -47.3 -51.4 63 4.1 -47.7 220 5 436.3 436.4 309.7 438.1 0.34 24 70 17960 -48.3 -52.5 62 4.2 -48.8 220 7 481.1 481.2 313.7 483.5 0.42 25 50 20170 -48.9 -53.1 61 4.2 -49.6 280 9 528.2 528.4 317.1 531.8 0.55 26 38 21958 -50.3 -54.4 62 4.1 -51.1 269 17 567.8 568.0 319.3 572.1 0.62 27 36 22306 -54.1 -58.2 61 4.1 -54.7 267 18 566.8 567.0 319.2 569.7 0.41 28 30 23470 -54.7 -58.8 60 4.1 -55.4 260 23 595.5 595.7 320.6 598.9 0.46 29 20 26060 -56.7 -60.7 60 4.0 -57.4 270 35 662.6 662.8 323.3 667.0 0.54 30 19 26386 -55.9 -59.9 61 4.0 -56.7 674.9 675.2 323.8 680.1 0.63 31 16 27469 -59.9 -64.0 59 4.1 -60.6 695.8 696.0 324.4 699.6 0.44 32 11 29832 -55.9 -59.9 61 4.0 -57.1 789.1 789.6 327.3 799.7 1.09 TRP 279 8943 -60.7 -64.2 63 3.5 -60.7 155 7 306.1 306.1 283.8 306.2 0.02 WND Sounding variables and indices 1000-500 mb thick: 4922.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.11 inches Sfc-500 mean rel hum: 69.22 % Est. max temperature: -11.63 C = 11.06 F Sfc-Lift cond lev (LCL): 874.20 mb = 1102.17 m = 3616.01 ft T: -40.09 C 700-500 lapse rate: 4.21 C/km ThetaE index: 1.05 C Layer 919.0- 895.0 mb Conv cond level (CCL): 922.00 mb = 739.97 m = 2427.70 ft Mean mixing ratio: 0.10 g/kg Conv temperature: -41.99 C = -43.58 F Cap Strength: 36.49 C Lifted Index: 38.84 C Risk: None Lifted Index @300 mb: 41.57 C Lifted Index @700 mb: 28.94 C Showalter Index: 35.03 C Risk: None Total Totals Index: -8.30 C Risk: None Vertical Totals Index: -2.00 C Cross Totals Index: -6.30 C K Index: -46.70 Risk: None Sweat Index: 25.00 Risk: None Energy Index: 9.48 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 75.04 J/kg Max Up Vert Vel: 12.25 m/s Conv Inhibition (B-): 86574.40 J/kg Cap Strength: 38.80 C Lift Cond Lev (LCL): 821.90 mb = 1533.91 m = 5032.44 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 106 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 ---------------------------------------------------------- 0 922 740 60 1 -0.9 -0.5 | 295 5 4.6 -2.1 1 850 1295 340 9 3.1 -8.5 | 320 13 8.6 -10.1 2 700 2689 30 7 -3.5 -6.1 | 345 8 2.0 -7.7 3 500 5110 125 7 -5.7 4.0 | 174 2 -0.2 2.4 4 400 6630 130 11 -8.4 7.1 | 152 6 -2.9 5.5 5 300 8490 140 13 -8.4 10.0 | 161 9 -2.9 8.3 6 279 8943 155 7 -3.0 6.3 | 208 5 2.5 4.7 7 250 9630 100 9 -8.9 1.6 | 89 3 -3.4 -0.1 8 200 11060 75 5 -4.8 -1.3 | 347 3 0.7 -2.9 9 150 12930 85 5 -5.0 -0.4 | 346 2 0.5 -2.1 10 100 15600 220 5 3.2 3.8 | 256 9 8.7 2.2 11 70 17960 220 7 4.5 5.4 | 249 11 10.0 3.7 12 50 20170 280 9 8.9 -1.6 | 282 15 14.4 -3.2 13 30 23470 260 23 22.7 4.0 | 265 28 28.1 2.4 14 20 26060 270 35 35.0 -0.0 | 272 41 40.5 -1.6 Wind Parameters Mean winds (0-6000m): 76.4 at 7.6 knts Storm direction: 106.4 at 5.7 knts Shear (0-3000m) pos: 1.7 neg: 1.4 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 81.8 deg Storm rel helicity (0-3000m) pos: 23.4 neg: -5.1 tot: 18.3 m^2/s^2 ave: 6.1 10^-3 m/s^2 rel: 0.42 Storm rel vorticity (0-3000m) horiz: 3.9 stream: 1.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 7.18 Bulk Shear: 10.45 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 ------------------------------------------------------------------------------- 500 347 5 313 9| 0.0 8.2 8.2| 4.8 -3.2 1.7 3.3 0.23| 9.7 2.3 1000 347 7 319 11| 0.6 4.1 4.7| 10.5 -5.1 5.4 5.4 0.26| 6.6 1.7 1500 353 7 324 11| 1.2 2.7 4.0| 15.5 -5.1 10.4 6.9 0.33| 5.3 1.7 2000 359 7 327 10| 1.5 2.0 3.5| 18.6 -5.1 13.5 6.8 0.36| 4.6 1.7 2500 7 7 332 10| 1.7 1.6 3.3| 21.5 -5.1 16.4 6.6 0.40| 4.2 1.6 3000 15 7 337 9| 1.7 1.4 3.1| 23.4 -5.1 18.3 6.1 0.42| 3.9 1.6 4000 31 7 346 8| 1.7 1.0 2.7| 25.4 -5.1 20.3 5.1 0.47| 3.5 1.7 5000 50 7 360 6| 1.6 0.8 2.4| 26.0 -5.7 20.3 4.1 0.44| 3.2 1.4 6000 76 8 29 4| 1.6 0.7 2.3| 26.1 -6.5 19.7 3.3 0.39| 2.9 1.1 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260104.12.gif