UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102012.upa.cvt Date: 1200Z 20 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 20 OCT 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 194 SFC 930 738 -19.9 -23.8 71 3.9 -20.4 280 1 258.6 258.7 257.3 260.2 0.60 2 925 779 -18.1 -21.6 74 3.5 -18.6 285 1 260.8 260.9 259.3 262.8 0.73 3 891 1061 -12.9 -15.0 84 2.1 -13.4 314 5 269.0 269.2 266.5 272.7 1.34 4 850 1419 -14.9 -18.4 75 3.5 -15.6 350 11 270.5 270.7 267.0 273.5 1.05 5 813 1754 -16.3 -19.6 76 3.3 -16.9 356 13 272.5 272.7 268.2 275.4 0.99 6 700 2860 -23.9 -27.3 73 3.4 -24.4 15 19 276.0 276.1 269.8 277.8 0.58 7 649 3406 -28.7 -32.4 70 3.7 -29.0 18 22 276.6 276.7 269.8 277.8 0.39 8 630 3619 -27.1 -30.6 72 3.5 -27.5 20 23 280.8 280.9 272.5 282.3 0.47 9 619 3746 -27.7 -32.0 67 4.3 -28.2 20 24 281.5 281.6 272.8 282.9 0.42 10 562 4433 -32.1 -39.1 50 7.0 -32.6 25 28 284.2 284.3 274.0 285.0 0.23 11 500 5250 -36.7 -42.7 54 6.0 -37.1 30 33 288.3 288.3 276.1 288.9 0.18 12 400 6760 -46.7 -51.7 57 5.0 -46.9 35 38 294.3 294.3 278.9 294.6 0.08 13 306 8504 -56.7 -61.3 56 4.6 -56.8 30 40 303.7 303.7 282.9 303.8 0.03 14 300 8630 -56.5 -61.1 56 4.6 -56.6 30 40 305.7 305.7 283.7 305.8 0.03 15 253 9704 -55.3 -59.9 56 4.6 -55.4 16 28 322.7 322.8 289.6 322.9 0.05 16 250 9780 -55.1 -59.8 56 4.7 -55.2 15 27 324.1 324.2 290.1 324.3 0.05 17 224 10484 -54.7 -59.7 54 5.0 -54.8 17 20 335.1 335.1 293.2 335.3 0.05 18 206 11027 -49.9 -55.9 49 6.0 -50.1 19 15 350.8 350.8 296.9 351.2 0.10 19 200 11220 -50.7 -57.7 43 7.0 -51.0 20 13 352.5 352.5 297.3 352.8 0.08 20 181 11870 -53.1 -61.1 37 8.0 -53.4 18 12 358.8 358.8 298.5 359.0 0.06 21 150 13090 -51.5 -62.5 26 11.0 -51.9 15 11 381.3 381.3 302.5 381.6 0.06 22 130 14015 -51.7 -64.7 20 13.0 -52.2 22 10 396.9 396.9 304.8 397.1 0.05 23 100 15700 -54.7 -69.7 14 15.0 -55.2 35 7 422.0 422.0 308.0 422.2 0.03 24 70 17990 -54.9 -72.9 9 18.0 -55.6 355 5 466.9 466.9 312.4 467.1 0.03 25 52 19890 -55.7 -74.7 8 19.0 -56.5 253 7 506.5 506.5 315.4 506.7 0.03 26 50 20140 -55.1 -75.1 7 20.0 -56.1 240 7 513.6 513.6 315.9 513.8 0.03 27 30 23440 -51.3 -74.3 5 23.0 -53.5 220 19 604.8 604.8 320.9 605.2 0.05 28 23 25174 -48.1 -73.1 4 25.0 -51.7 220 24 661.9 662.0 323.2 662.6 0.08 29 20 26090 -49.9 -74.9 4 25.0 -53.3 220 27 683.4 683.5 323.9 684.1 0.07 30 13 28915 -48.7 -73.7 4 25.0 -53.7 777.2 777.3 326.7 778.5 0.14 31 11 30027 -43.1 -69.1 4 26.0 -51.0 835.6 835.7 328.1 838.9 0.32 TRP 306 8504 -56.7 -61.3 56 4.6 -56.8 30 40 303.7 303.7 282.9 303.8 0.03 WND Sounding variables and indices 1000-500 mb thick: 5056.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 67.77 % Est. max temperature: -5.26 C = 22.53 F Sfc-Lift cond lev (LCL): 872.04 mb = 1224.75 m = 4018.16 ft T: -13.81 C 700-500 lapse rate: 5.36 C/km ThetaE index: 0.00 C Layer 930.0- -0.0 mb Conv cond level (CCL): 930.00 mb = 738.43 m = 2422.65 ft Mean mixing ratio: 1.08 g/kg Conv temperature: -17.00 C = 1.39 F Cap Strength: 11.59 C Lifted Index: 14.37 C Risk: None Lifted Index @300 mb: 24.63 C Lifted Index @700 mb: 5.79 C Showalter Index: 12.32 C Risk: None Total Totals Index: 40.10 C Risk: None Vertical Totals Index: 21.80 C Cross Totals Index: 18.30 C K Index: 0.00 Risk: None Sweat Index: 55.00 Risk: None Energy Index: 3.18 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 44.89 J/kg Max Up Vert Vel: 9.47 m/s Conv Inhibition (B-): 61110.70 J/kg Cap Strength: 14.39 C Lift Cond Lev (LCL): 840.18 mb = 1506.43 m = 4942.31 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 54 at 18 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 ---------------------------------------------------------- 0 930 738 280 1 1.0 -0.2 | 236 19 15.4 10.3 1 925 779 285 1 1.0 -0.3 | 237 18 15.4 10.2 2 850 1419 350 11 1.9 -10.8 | 271 16 16.4 -0.4 3 700 2860 15 19 -4.9 -18.4 | 310 12 9.5 -7.9 4 500 5250 30 33 -16.5 -28.6 | 6 18 -2.1 -18.1 5 400 6760 35 38 -21.8 -31.1 | 20 22 -7.4 -20.7 6 306 8504 30 40 -20.0 -34.6 | 13 25 -5.6 -24.2 7 300 8630 30 40 -20.0 -34.6 | 13 25 -5.6 -24.2 8 250 9780 15 27 -7.0 -26.1 | 335 17 7.5 -15.6 9 200 11220 20 13 -4.4 -12.2 | 280 10 10.0 -1.8 10 150 13090 15 11 -2.8 -10.6 | 271 12 11.6 -0.2 11 100 15700 35 7 -4.0 -5.7 | 246 11 10.4 4.7 12 70 17990 355 5 0.4 -5.0 | 250 16 14.9 5.5 13 50 20140 240 7 6.1 3.5 | 236 25 20.5 13.9 14 30 23440 220 19 12.2 14.6 | 227 37 26.7 25.0 15 20 26090 220 27 17.4 20.7 | 226 44 31.8 31.1 Wind Parameters Mean winds (0-6000m): 24.2 at 23.8 knts Storm direction: 54.2 at 17.8 knts Shear (0-3000m) pos: 4.2 neg: 0.0 tot: 4.2 10-3/s Storm rel Dir Shear (0-3000m): 97.5 deg Storm rel helicity (0-3000m) pos: 111.3 neg: 0.0 tot: 111.3 m^2/s^2 ave: 37.1 10^-3 m/s^2 rel: 0.93 Storm rel vorticity (0-3000m) horiz: 4.9 stream: 4.5 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.71 Bulk Shear: 62.81 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 ------------------------------------------------------------------------------- 500 326 4 248 18| 7.8 0.0 7.8| 40.2 0.0 40.2 80.3 0.96| 8.5 8.1 1000 349 8 259 16| 6.5 0.0 6.5| 64.7 0.0 64.7 64.7 0.92| 7.5 6.9 1500 355 10 267 15| 5.3 0.0 5.3| 77.5 0.0 77.5 51.7 0.92| 6.2 5.7 2000 1 12 275 14| 4.7 0.0 4.7| 89.9 0.0 89.9 44.9 0.92| 5.6 5.2 2500 6 13 282 13| 4.4 0.0 4.4|100.6 0.0 100.6 40.3 0.93| 5.2 4.8 3000 9 15 289 13| 4.2 0.0 4.2|111.3 0.0 111.3 37.1 0.93| 4.9 4.5 4000 16 18 305 12| 3.9 0.0 3.9|134.6 0.0 134.6 33.6 0.93| 4.5 4.2 5000 21 21 323 12| 3.6 0.0 3.6|155.4 0.0 155.4 31.1 0.91| 4.1 3.8 6000 24 24 337 12| 3.3 0.0 3.3|171.8 0.0 171.8 28.6 0.90| 3.8 3.4 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251020.12.gif