UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042900.upa.cvt Date: 0000Z 29 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 29 APR 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 89 345 3 SFC 997 113 2.8 -3.2 65 6.0 0.4 345 3 276.2 276.7 273.8 284.5 3.02 2 952 483 -1.1 -9.1 55 8.0 -3.7 0 17 275.9 276.2 272.1 281.6 2.01 3 925 711 -1.3 -8.3 59 7.0 -3.7 10 25 278.0 278.4 273.6 284.2 2.21 4 895 974 -1.3 -11.3 46 10.0 -4.5 6 23 280.6 280.9 274.5 285.8 1.80 5 888 1037 -1.9 -12.9 43 11.0 -5.3 5 23 280.6 280.9 274.2 285.2 1.59 6 850 1384 -4.5 -12.5 54 8.0 -6.9 360 21 281.4 281.7 274.8 286.4 1.72 7 809 1770 -7.9 -12.9 67 5.0 -9.4 4 18 281.8 282.1 275.0 286.9 1.75 8 777 2083 -8.9 -12.0 78 3.1 -9.8 7 16 284.0 284.4 276.5 289.7 1.96 9 706 2820 -12.5 -17.5 66 5.0 -13.7 14 11 287.9 288.2 277.7 292.1 1.37 10 700 2885 -13.1 -19.1 61 6.0 -14.5 15 11 288.0 288.2 277.4 291.6 1.21 11 533 4895 -28.7 -34.7 56 6.0 -29.3 15 13 292.6 292.7 278.6 293.9 0.38 12 500 5350 -31.1 -37.1 56 6.0 -31.7 15 13 295.1 295.2 279.6 296.2 0.32 13 458 5969 -35.1 -41.1 54 6.0 -35.5 29 15 297.6 297.7 280.6 298.4 0.23 14 400 6900 -43.3 -49.3 52 6.0 -43.5 50 19 298.7 298.7 280.9 299.1 0.11 15 364 7524 -48.7 -54.7 50 6.0 -48.8 56 20 299.7 299.7 281.3 299.9 0.06 16 314 8478 -55.1 -61.1 47 6.0 -55.2 65 21 303.7 303.7 282.9 303.8 0.03 17 304 8685 -52.9 -58.9 48 6.0 -53.0 58 20 309.6 309.6 285.2 309.8 0.04 18 300 8770 -52.7 -58.7 48 6.0 -52.8 55 19 311.1 311.1 285.8 311.2 0.05 19 250 9960 -50.1 -57.1 43 7.0 -50.3 25 13 331.6 331.6 292.2 331.9 0.07 20 240 10226 -48.1 -56.1 39 8.0 -48.4 20 13 338.5 338.5 294.0 338.8 0.08 21 200 11420 -47.9 -58.9 27 11.0 -48.3 360 13 356.9 356.9 298.1 357.2 0.07 22 150 13320 -49.1 -65.1 14 16.0 -49.7 20 11 385.5 385.5 303.1 385.7 0.04 23 100 15970 -50.5 -71.5 7 21.0 -51.3 360 7 430.2 430.2 308.9 430.3 0.02 24 88 16806 -50.9 -72.9 6 22.0 -51.8 11 7 445.4 445.4 310.4 445.5 0.02 25 70 18300 -50.7 -74.7 4 24.0 -51.8 30 7 475.9 475.9 313.1 476.0 0.02 26 50 20480 -50.9 -74.9 4 24.0 -52.4 40 9 523.5 523.5 316.5 523.7 0.03 27 34 22996 -50.1 -75.1 4 25.0 -52.4 17 4 586.7 586.7 320.0 587.0 0.04 28 30 23810 -52.3 -76.3 4 24.0 -54.3 10 3 602.1 602.1 320.7 602.4 0.04 29 28 24255 -52.9 -76.9 4 24.0 -54.9 20 4 612.4 612.4 321.2 612.7 0.04 30 20 26450 -47.7 -73.7 3 26.0 -51.8 70 7 690.2 690.2 324.1 690.9 0.09 31 15 28342 -49.7 -74.7 4 25.0 -53.9 89 7 742.7 742.8 325.7 743.6 0.10 32 11 30395 -44.5 -70.5 4 26.0 -51.7 109 7 830.5 830.6 328.0 833.2 0.26 33 10 31030 -47.1 -73.1 4 26.0 -53.6 115 7 843.7 843.8 328.3 845.8 0.19 34 9.1 31657 -44.9 -70.9 4 26.0 -52.7 875.2 875.4 329.0 878.4 0.30 TRP 314 8478 -55.1 -61.1 47 6.0 -55.2 65 21 303.7 303.7 282.9 303.8 0.03 WND Sounding variables and indices 1000-500 mb thick: 5261.00 m Freezing level: 964.69 mb = 378.40 m = 1241.46 ft Wetbulb zero: 992.35 mb = 150.59 m = 494.06 ft Precipitable water: 0.30 inches Sfc-500 mean rel hum: 60.07 % Est. max temperature: 8.07 C = 46.53 F Sfc-Lift cond lev (LCL): 908.39 mb = 855.74 m = 2807.53 ft T: -1.30 C 700-500 lapse rate: 7.30 C/km ThetaE index: 2.98 C Layer 952.0- 925.0 mb Conv cond level (CCL): 736.79 mb = 2491.87 m = 8175.34 ft Mean mixing ratio: 2.26 g/kg Conv temperature: 12.80 C = 55.04 F Cap Strength: 8.37 C Lifted Index: 10.01 C Risk: None Lifted Index @300 mb: 19.53 C Lifted Index @700 mb: 6.95 C Showalter Index: 7.85 C Risk: None Total Totals Index: 45.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.60 C Cross Totals Index: 18.60 C K Index: 8.10 Risk: None Sweat Index: 55.00 Risk: None Energy Index: 2.03 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.44 J/kg Max Up Vert Vel: 5.91 m/s Conv Inhibition (B-): 72588.62 J/kg Cap Strength: 9.89 C Lift Cond Lev (LCL): 842.30 mb = 1455.11 m = 4773.92 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 41 at 11 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 ---------------------------------------------------------- 0 997 113 345 3 0.8 -2.9 | 236 10 8.0 5.4 1 925 711 10 25 -4.3 -24.6 | 350 17 2.9 -16.4 2 850 1384 360 21 -0.0 -21.0 | 330 15 7.3 -12.7 3 700 2885 15 11 -2.8 -10.6 | 298 5 4.4 -2.4 4 500 5350 15 13 -3.4 -12.6 | 318 6 3.9 -4.3 5 400 6900 50 19 -14.6 -12.2 | 62 8 -7.3 -4.0 6 314 8478 65 21 -19.0 -8.9 | 87 12 -11.8 -0.6 7 300 8770 55 19 -15.6 -10.9 | 72 9 -8.3 -2.6 8 250 9960 25 13 -5.5 -11.8 | 333 4 1.8 -3.5 9 200 11420 360 13 -0.0 -13.0 | 303 9 7.3 -4.7 10 150 13320 20 11 -3.8 -10.3 | 301 4 3.5 -2.1 11 100 15970 360 7 -0.0 -7.0 | 260 7 7.3 1.3 12 70 18300 30 7 -3.5 -6.1 | 240 4 3.8 2.2 13 50 20480 40 9 -5.8 -6.9 | 227 2 1.5 1.4 14 30 23810 10 3 -0.5 -3.0 | 232 9 6.7 5.3 15 20 26450 70 7 -6.6 -2.4 | 187 6 0.7 5.9 16 10 31030 115 7 -6.3 3.0 | 185 11 0.9 11.2 Wind Parameters Mean winds (0-6000m): 11.3 at 14.7 knts Storm direction: 41.3 at 11.0 knts Shear (0-3000m) pos: 1.9 neg: 0.4 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 64.0 deg Storm rel helicity (0-3000m) pos: 57.4 neg: -29.7 tot: 27.8 m^2/s^2 ave: 9.3 10^-3 m/s^2 rel: 0.29 Storm rel vorticity (0-3000m) horiz: 6.8 stream: 2.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 17.89 Bulk Shear: 0.97 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 7 12 303 7| 19.2 0.0 19.2| 45.4 0.0 45.4 90.9 0.92| 19.7 18.1 1000 7 18 332 11| 9.6 0.7 10.3| 57.2 -13.5 43.7 43.7 0.65| 13.6 8.9 1500 5 19 333 12| 6.4 0.8 7.2| 57.2 -22.2 35.0 23.4 0.50| 10.4 5.2 2000 5 19 332 12| 4.0 0.6 4.6| 57.2 -24.2 33.0 16.5 0.42| 8.8 3.7 2500 5 18 330 11| 2.6 0.5 3.0| 57.2 -27.6 29.6 11.9 0.34| 7.7 2.6 3000 6 17 327 10| 1.9 0.4 2.3| 57.4 -29.7 27.8 9.3 0.29| 6.8 2.0 4000 8 16 324 9| 1.4 0.2 1.6| 58.5 -29.7 28.8 7.2 0.30| 5.2 1.6 5000 9 15 322 8| 1.1 0.1 1.2| 59.5 -29.7 29.9 6.0 0.31| 4.2 1.3 6000 11 15 324 8| 1.3 0.1 1.4| 67.0 -29.7 37.4 6.2 0.39| 4.0 1.6 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250429.00.gif