UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042112.upa.cvt Date: 1200Z 21 APR 25 Searching for U4343... Searching the city database file for: U4343 ... Date:1200Z 21 APR 25 Station: U4343 WMO ident: 24343 Latitude: 66.77 Longitude: 123.40 ------------------------------------------------------------------------------- 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 33 20 5 SFC 994 81 -0.7 -4.6 75 3.9 -2.1 20 5 272.9 273.4 271.4 280.4 2.73 2 956 392 -2.5 -7.0 71 4.5 -4.0 47 16 274.2 274.5 271.5 280.7 2.36 3 925 656 1.6 -5.4 60 7.0 -1.1 70 25 280.9 281.4 276.0 288.8 2.76 4 910 786 3.4 -4.6 56 8.0 0.2 77 23 284.1 284.6 278.0 292.6 2.98 5 888 981 2.4 -5.6 55 8.0 -0.7 87 20 285.1 285.6 278.3 293.2 2.83 6 850 1327 -0.7 -6.7 64 6.0 -3.0 105 15 285.4 285.9 278.3 293.3 2.72 7 764 2173 -8.5 -9.7 91 1.2 -8.9 127 15 285.8 286.2 278.0 292.8 2.39 8 724 2592 -10.7 -11.6 93 0.9 -11.0 138 15 287.8 288.2 278.7 294.3 2.17 9 700 2852 -12.1 -13.2 91 1.1 -12.4 145 15 289.1 289.4 279.1 295.0 1.97 10 546 4706 -24.5 -26.0 87 1.5 -24.8 138 21 295.6 295.8 280.6 298.3 0.84 11 500 5340 -29.9 -31.7 84 1.8 -30.1 135 23 296.6 296.7 280.6 298.3 0.54 12 400 6900 -39.7 -41.7 81 2.0 -39.8 130 36 303.4 303.4 283.1 304.3 0.25 13 307 8652 -52.2 -54.4 77 2.2 -52.2 145 66 309.7 309.7 285.3 310.0 0.08 14 300 8800 -53.3 -55.5 77 2.2 -53.4 145 66 310.2 310.2 285.5 310.5 0.07 15 261 9696 -57.7 -60.0 75 2.3 -57.8 145 58 316.4 316.4 287.6 316.5 0.05 16 250 9970 -57.3 -59.8 73 2.5 -57.3 140 46 320.9 320.9 289.0 321.1 0.05 17 200 11390 -51.5 -54.5 70 3.0 -51.6 155 35 351.2 351.2 297.0 351.7 0.12 18 163 12733 -48.5 -52.7 62 4.2 -48.8 166 28 377.4 377.5 301.9 378.2 0.18 19 150 13280 -49.7 -54.1 60 4.4 -50.0 170 25 384.4 384.5 303.1 385.2 0.16 20 144 13547 -50.9 -55.3 59 4.4 -51.1 172 24 386.9 386.9 303.4 387.5 0.15 21 101 15865 -49.3 -55.3 49 6.0 -49.8 190 13 431.2 431.3 309.1 432.3 0.21 22 100 15930 -49.5 -55.5 49 6.0 -50.0 190 13 432.1 432.1 309.1 433.2 0.21 23 70 18250 -50.5 -57.5 43 7.0 -51.2 145 7 476.3 476.4 313.2 477.7 0.23 24 50 20440 -50.3 -58.3 38 8.0 -51.3 185 9 524.9 525.0 316.7 526.8 0.29 25 33 23141 -52.7 -62.7 29 10.0 -54.0 218 7 584.8 584.9 320.0 586.6 0.25 26 30 23760 -50.7 -61.7 26 11.0 -52.5 225 7 606.4 606.5 321.0 608.8 0.32 27 20 26390 -50.9 -62.9 23 12.0 -53.4 95 5 680.4 680.5 323.9 683.8 0.41 28 11 30292 -49.7 -64.7 16 15.0 -54.1 811.6 811.9 327.7 817.5 0.58 TRP 261 9696 -57.7 -60.0 75 2.3 -57.8 145 58 316.4 316.4 287.6 316.5 0.05 WND 307 8652 -52.2 -54.4 77 2.2 -52.2 145 66 309.7 309.7 285.3 310.0 0.08 Sounding variables and indices 1000-500 mb thick: 5307.00 m Freezing level: Surface below freezing Freezing level: 937.10 mb = 552.98 m = 1814.23 ft Freezing level: 858.58 mb = 1248.87 m = 4097.30 ft Wetbulb zero: Below ground Precipitable water: 0.44 inches Sfc-500 mean rel hum: 81.49 % Est. max temperature: 11.81 C = 53.25 F Sfc-Lift cond lev (LCL): 935.12 mb = 568.86 m = 1866.30 ft T: 0.25 C 700-500 lapse rate: 7.15 C/km ThetaE index: 0.47 C Layer 764.0- 724.0 mb Conv cond level (CCL): 765.76 mb = 2154.85 m = 7069.64 ft Mean mixing ratio: 2.66 g/kg Conv temperature: 12.18 C = 53.93 F Cap Strength: 9.58 C Lifted Index: 9.78 C Risk: None Lifted Index @300 mb: 17.58 C Lifted Index @700 mb: 6.63 C Showalter Index: 3.89 C Risk: None Total Totals Index: 52.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 29.20 C Cross Totals Index: 23.20 C K Index: 21.40 Risk: 20-40 % chance of thunderstorms Sweat Index: 121.00 Risk: None Energy Index: 1.05 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 54.05 J/kg Max Up Vert Vel: 10.40 m/s Conv Inhibition (B-): 58076.02 J/kg Cap Strength: 9.76 C Lift Cond Lev (LCL): 860.58 mb = 1229.15 m = 4032.58 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 155 at 14 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 ---------------------------------------------------------- 0 994 81 20 5 -1.7 -4.7 | 346 18 4.3 -17.3 1 925 656 70 25 -23.5 -8.6 | 40 28 -17.5 -21.2 2 850 1327 105 15 -14.5 3.9 | 44 12 -8.5 -8.8 3 700 2852 145 15 -8.6 12.3 | 82 3 -2.6 -0.4 4 500 5340 135 23 -16.3 16.3 | 109 11 -10.3 3.6 5 400 6900 130 36 -27.6 23.1 | 116 24 -21.6 10.5 6 307 8652 145 66 -37.9 54.1 | 142 52 -31.9 41.4 7 300 8800 145 66 -37.9 54.1 | 142 52 -31.9 41.4 8 261 9696 145 58 -33.3 47.5 | 142 44 -27.3 34.9 9 250 9970 140 46 -29.6 35.2 | 134 33 -23.6 22.6 10 200 11390 155 35 -14.8 31.7 | 155 21 -8.8 19.1 11 150 13280 170 25 -4.3 24.6 | 188 12 1.6 12.0 12 100 15930 190 13 2.3 12.8 | 269 8 8.2 0.2 13 70 18250 145 7 -4.0 5.7 | 344 7 2.0 -6.9 14 50 20440 185 9 0.8 9.0 | 299 8 6.8 -3.7 15 30 23760 225 7 4.9 4.9 | 305 13 10.9 -7.7 16 20 26390 95 5 -5.0 0.4 | 355 12 1.0 -12.2 Wind Parameters Mean winds (0-6000m): 124.7 at 18.7 knts Storm direction: 154.7 at 14.0 knts Shear (0-3000m) pos: 3.3 neg: 0.0 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 105.5 deg Storm rel helicity (0-3000m) pos: 163.5 neg: -1.5 tot: 161.9 m^2/s^2 ave: 54.0 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 8.7 stream: 5.0 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 1.32 Bulk Shear: 40.92 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 61 14 17 20| 19.6 0.0 19.6|111.5 0.0 111.5 223.0 0.89| 21.1 18.8 1000 71 18 31 21| 9.1 0.0 9.1|155.1 0.0 155.1 155.1 0.72| 17.6 12.8 1500 80 17 35 19| 5.5 0.0 5.5|157.0 -1.5 155.5 103.6 0.61| 14.1 8.6 2000 88 17 39 17| 4.4 0.0 4.4|160.4 -1.5 158.9 79.4 0.59| 11.5 6.8 2500 96 16 44 15| 3.7 0.0 3.7|162.4 -1.5 160.9 64.3 0.58| 9.9 5.7 3000 104 16 48 13| 3.3 0.0 3.3|163.5 -1.5 161.9 54.0 0.57| 8.7 5.0 4000 115 16 57 11| 2.4 0.4 2.9|164.9 -1.5 163.3 40.8 0.56| 6.9 3.9 5000 121 17 68 10| 2.0 0.7 2.7|165.5 -1.5 164.0 32.8 0.53| 5.9 3.1 6000 125 19 78 10| 1.6 1.2 2.8|169.9 -1.5 168.4 28.1 0.49| 5.6 2.7 Wrote GIF file: /home/apache/climate/data/raob//U4343/skewt/U4343.skewt.20250421.12.gif