UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042400.upa.cvt Date: 0000Z 24 APR 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 24 APR 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 104 SFC 925 738 3.2 -8.8 41 12.0 -1.1 40 3 282.6 282.9 276.0 288.7 2.12 2 886 1086 -0.9 -12.9 40 12.0 -4.6 91 5 281.8 282.1 274.8 286.5 1.60 3 876 1177 0.0 -12.0 40 12.0 -3.9 104 6 283.7 284.0 276.0 288.8 1.74 4 850 1419 -1.5 -14.5 36 13.0 -5.4 140 7 284.6 284.8 276.1 288.9 1.46 5 732 2597 -6.5 -26.5 19 20.0 -10.9 117 7 291.5 291.6 278.3 293.4 0.60 6 705 2889 -8.3 -28.3 18 20.0 -12.4 111 7 292.7 292.8 278.8 294.4 0.53 7 700 2944 -8.9 -27.9 20 19.0 -12.8 110 7 292.6 292.7 278.8 294.4 0.55 8 620 3867 -16.7 -27.7 38 11.0 -18.7 117 10 294.0 294.1 279.6 296.1 0.63 9 601 4099 -18.3 -31.3 31 13.0 -20.4 119 11 294.8 294.9 279.7 296.3 0.47 10 541 4876 -22.1 -46.1 9 24.0 -24.4 125 13 299.3 299.3 281.2 299.7 0.11 11 533 4985 -22.5 -44.5 12 22.0 -24.7 126 13 300.1 300.1 281.5 300.6 0.14 12 500 5450 -25.9 -36.9 35 11.0 -27.2 130 15 301.5 301.5 282.4 302.6 0.32 13 469 5911 -29.1 -37.1 46 8.0 -30.0 133 16 303.1 303.1 283.1 304.2 0.34 14 422 6663 -32.1 -38.1 55 6.0 -32.7 138 18 308.5 308.6 285.2 309.7 0.34 15 400 7040 -34.1 -40.1 55 6.0 -34.7 140 19 310.7 310.7 285.9 311.7 0.29 16 395 7128 -34.3 -40.3 55 6.0 -34.8 142 19 311.5 311.6 286.2 312.6 0.29 17 300 9000 -48.3 -55.3 44 7.0 -48.5 180 25 317.3 317.3 287.9 317.5 0.07 18 250 10170 -57.7 -64.7 40 7.0 -57.8 180 33 320.3 320.3 288.9 320.4 0.03 19 228 10745 -62.3 -69.3 39 7.0 -62.4 175 29 321.8 321.8 289.3 321.9 0.01 20 200 11570 -54.5 -62.5 37 8.0 -54.7 165 19 346.5 346.5 295.9 346.6 0.04 21 193 11799 -52.9 -60.9 37 8.0 -53.1 163 18 352.6 352.6 297.3 352.8 0.05 22 153 13293 -53.7 -66.7 19 13.0 -54.1 146 13 375.4 375.4 301.5 375.6 0.03 23 150 13420 -53.1 -66.1 19 13.0 -53.5 145 13 378.6 378.6 302.1 378.7 0.04 24 140 13868 -49.7 -64.7 16 15.0 -50.3 147 13 392.1 392.1 304.1 392.3 0.05 25 114 15201 -53.5 -71.5 9 18.0 -54.0 152 14 408.7 408.8 306.3 408.9 0.02 26 106 15672 -51.5 -70.5 9 19.0 -52.2 154 15 421.1 421.2 307.9 421.3 0.03 27 100 16050 -51.3 -70.3 9 19.0 -52.1 155 15 428.6 428.6 308.7 428.8 0.03 28 76 17820 -53.5 -74.5 6 21.0 -54.3 143 13 459.0 459.0 311.7 459.1 0.02 29 70 18350 -51.5 -73.5 6 22.0 -52.5 140 13 474.2 474.2 313.0 474.4 0.03 30 64 18930 -53.1 -75.1 5 22.0 -54.1 143 11 483.0 483.0 313.7 483.1 0.02 31 50 20530 -50.9 -73.9 5 23.0 -52.4 150 7 523.5 523.5 316.5 523.7 0.03 32 47 20931 -51.3 -74.3 5 23.0 -52.8 152 7 531.9 531.9 317.1 532.1 0.03 33 30 23830 -53.3 -77.3 4 24.0 -55.1 165 11 599.3 599.3 320.6 599.6 0.03 34 23 25540 -52.7 -76.7 4 24.0 -55.1 132 6 648.4 648.4 322.6 648.8 0.05 35 21 26126 -52.7 -76.7 4 24.0 -55.2 121 4 665.5 665.5 323.3 665.9 0.05 36 20 26440 -53.5 -77.5 4 24.0 -56.0 115 3 672.4 672.4 323.5 672.8 0.05 37 18 27119 -52.9 -76.9 4 24.0 -55.7 694.9 694.9 324.3 695.4 0.06 38 16 27886 -48.5 -73.5 4 25.0 -52.9 733.0 733.1 325.5 734.1 0.11 39 10 31001 -45.3 -71.3 4 26.0 -52.5 850.5 850.6 328.5 853.1 0.25 TRP 228 10745 -62.3 -69.3 39 7.0 -62.4 175 29 321.8 321.8 289.3 321.9 0.01 WND Sounding variables and indices 1000-500 mb thick: 5346.00 m Freezing level: 894.56 mb = 1009.95 m = 3313.44 ft Freezing level: 876.00 mb = 1177.43 m = 3862.90 ft Freezing level: 876.00 mb = 1177.43 m = 3862.90 ft Wetbulb zero: Below ground Precipitable water: 0.17 inches Sfc-500 mean rel hum: 27.05 % Est. max temperature: 9.35 C = 48.83 F Sfc-Lift cond lev (LCL): 767.38 mb = 2224.65 m = 7298.64 ft T: -4.92 C 700-500 lapse rate: 6.78 C/km ThetaE index: 2.21 C Layer 886.0- 876.0 mb Conv cond level (CCL): 616.29 mb = 3911.37 m = 12832.43 ft Mean mixing ratio: 1.64 g/kg Conv temperature: 14.54 C = 58.17 F Cap Strength: 10.91 C Lifted Index: 11.52 C Risk: None Lifted Index @300 mb: 20.53 C Lifted Index @700 mb: 7.78 C Showalter Index: 11.14 C Risk: None Total Totals Index: 35.80 C Risk: None Vertical Totals Index: 24.40 C Cross Totals Index: 11.40 C K Index: -9.10 Risk: None Sweat Index: 29.00 Risk: None Energy Index: 2.87 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 18.93 J/kg Max Up Vert Vel: 6.15 m/s Conv Inhibition (B-): 59104.05 J/kg Cap Strength: 11.41 C Lift Cond Lev (LCL): 718.35 mb = 2742.98 m = 8999.18 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 157 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 ---------------------------------------------------------- 0 925 738 40 3 -1.9 -2.3 | 353 10 1.1 -9.7 1 925 742 40 3 -1.9 -2.3 | 353 10 1.1 -9.7 2 850 1419 140 7 -4.5 5.4 | 36 2 -1.4 -2.0 3 700 2944 110 7 -6.6 2.4 | 35 6 -3.5 -5.0 4 500 5450 130 15 -11.5 9.6 | 105 9 -8.4 2.3 5 400 7040 140 19 -12.2 14.6 | 128 12 -9.2 7.2 6 300 9000 180 25 0.0 25.0 | 190 18 3.1 17.6 7 250 10170 180 33 0.0 33.0 | 187 26 3.1 25.6 8 228 10745 175 29 -2.5 28.9 | 181 22 0.5 21.5 9 200 11570 165 19 -4.9 18.4 | 170 11 -1.9 11.0 10 150 13420 145 13 -7.5 10.6 | 127 5 -4.4 3.3 11 100 16050 155 15 -6.3 13.6 | 152 7 -3.3 6.2 12 70 18350 140 13 -8.4 10.0 | 116 6 -5.3 2.6 13 50 20530 150 7 -3.5 6.1 | 19 1 -0.4 -1.3 14 30 23830 165 11 -2.8 10.6 | 184 3 0.2 3.3 15 20 26440 115 3 -2.7 1.3 | 357 6 0.3 -6.1 Wind Parameters Mean winds (0-6000m): 127.4 at 10.6 knts Storm direction: 157.4 at 8.0 knts Shear (0-3000m) pos: 1.6 neg: 0.5 tot: 2.1 10-3/s Storm rel Dir Shear (0-3000m): 66.9 deg Storm rel helicity (0-3000m) pos: 15.3 neg: -0.4 tot: 14.8 m^2/s^2 ave: 4.9 10^-3 m/s^2 rel: 0.49 Storm rel vorticity (0-3000m) horiz: 2.7 stream: 1.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 2.50 Bulk Shear: 7.57 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 90 4 11 7| 6.0 0.0 6.0| 10.0 0.0 10.0 20.0 0.71| 6.6 4.7 1000 125 6 20 4| 4.0 0.0 4.0| 10.9 0.0 10.9 10.9 0.53| 5.3 2.8 1500 127 6 26 4| 2.7 0.4 3.1| 10.9 -0.0 10.9 7.3 0.47| 3.9 1.9 2000 125 6 30 4| 2.0 0.6 2.6| 10.9 -0.3 10.7 5.3 0.41| 3.3 1.4 2500 122 7 32 5| 1.6 0.6 2.2| 12.5 -0.4 12.1 4.8 0.43| 2.9 1.3 3000 120 7 36 5| 1.6 0.5 2.1| 15.3 -0.4 14.8 4.9 0.49| 2.7 1.3 4000 121 8 49 5| 1.7 0.4 2.0| 21.3 -0.4 20.9 5.2 0.58| 2.5 1.4 5000 124 9 65 5| 1.7 0.3 2.0| 28.0 -0.4 27.6 5.5 0.62| 2.4 1.5 6000 127 11 80 5| 1.7 0.3 1.9| 34.8 -0.4 34.4 5.7 0.64| 2.2 1.4 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20250424.00.gif