UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042100.upa.cvt Date: 0000Z 21 APR 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 21 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 159 SFC 930 741 -1.7 -8.7 59 7.0 -4.0 10 1 277.1 277.5 273.0 283.1 2.13 2 925 784 -2.3 -14.3 39 12.0 -5.7 65 1 277.0 277.2 271.6 280.9 1.36 3 919 836 -3.3 -15.3 39 12.0 -6.5 73 1 276.4 276.7 271.2 280.1 1.26 4 916 861 -3.5 -15.5 39 12.0 -6.7 78 2 276.5 276.7 271.2 280.1 1.25 5 874 1234 -0.9 -12.9 40 12.0 -4.7 139 5 282.9 283.2 275.5 287.7 1.62 6 850 1456 -1.3 -15.3 34 14.0 -5.5 175 7 284.8 285.0 276.0 288.9 1.37 7 794 2001 -1.3 -19.3 24 18.0 -6.3 203 7 290.4 290.6 278.4 293.6 1.04 8 761 2339 -3.5 -25.5 16 22.0 -8.7 221 7 291.6 291.7 278.4 293.6 0.63 9 700 2997 -7.5 -27.5 18 20.0 -11.8 255 7 294.2 294.3 279.6 296.0 0.57 10 645 3625 -11.7 -30.7 19 19.0 -15.2 260 9 296.4 296.5 280.4 297.9 0.46 11 536 5007 -22.7 -42.7 14 20.0 -24.8 271 13 299.4 299.4 281.3 299.9 0.17 12 521 5213 -25.1 -41.1 21 16.0 -26.7 273 14 298.9 298.9 281.1 299.6 0.20 13 500 5510 -26.1 -40.1 26 14.0 -27.6 275 15 301.2 301.3 282.2 302.0 0.23 14 456 6175 -29.5 -37.5 46 8.0 -30.4 287 13 305.0 305.1 283.8 306.2 0.33 15 452 6238 -29.9 -37.9 46 8.0 -30.7 289 12 305.3 305.3 284.0 306.4 0.32 16 400 7100 -37.1 -45.1 43 8.0 -37.6 305 9 306.8 306.8 284.3 307.4 0.17 17 300 9020 -53.1 -62.1 33 9.0 -53.2 345 9 310.5 310.5 285.5 310.6 0.03 18 286 9326 -55.5 -64.5 32 9.0 -55.6 350 11 311.3 311.3 285.8 311.4 0.02 19 250 10170 -61.3 -70.3 29 9.0 -61.4 5 17 314.9 314.9 287.1 315.0 0.01 20 238 10474 -62.7 -71.7 29 9.0 -62.8 360 13 317.3 317.3 287.9 317.3 0.01 21 236 10526 -62.7 -71.7 29 9.0 -62.8 0 13 318.1 318.1 288.1 318.1 0.01 22 209 11289 -55.3 -65.3 28 10.0 -55.5 4 7 340.9 340.9 294.6 341.0 0.03 23 200 11570 -54.5 -64.5 28 10.0 -54.7 5 5 346.5 346.5 295.8 346.6 0.03 24 174 12464 -51.7 -63.7 22 12.0 -52.1 58 5 365.2 365.2 299.7 365.3 0.04 25 150 13420 -53.1 -69.1 13 16.0 -53.5 115 5 378.6 378.6 302.1 378.7 0.02 26 103 15849 -53.5 -69.5 13 16.0 -54.1 134 5 420.8 420.8 307.8 421.0 0.03 27 100 16040 -52.9 -68.9 13 16.0 -53.5 135 5 425.5 425.5 308.4 425.7 0.04 28 70 18340 -53.1 -70.1 11 17.0 -53.9 290 5 470.8 470.8 312.7 471.0 0.04 29 55 19903 -50.9 -67.9 12 17.0 -52.2 179 6 509.4 509.5 315.7 509.9 0.07 30 50 20520 -53.3 -70.3 11 17.0 -54.4 135 7 517.9 517.9 316.2 518.2 0.06 31 48 20783 -53.7 -71.7 9 18.0 -54.8 133 7 523.0 523.0 316.5 523.3 0.05 32 47 20918 -53.3 -71.3 9 18.0 -54.5 131 7 527.1 527.1 316.8 527.5 0.05 33 41 21802 -51.5 -69.5 10 18.0 -53.1 123 8 552.6 552.6 318.3 553.2 0.08 34 30 23820 -53.9 -71.9 9 18.0 -55.5 105 9 597.7 597.7 320.5 598.3 0.08 35 23 25534 -50.1 -69.1 9 19.0 -52.9 82 12 656.1 656.1 323.0 657.3 0.15 36 20 26440 -51.9 -69.9 10 18.0 -54.6 70 13 677.3 677.4 323.7 678.6 0.16 37 15 28307 -51.3 -69.3 10 18.0 -54.7 737.4 737.5 325.6 739.5 0.23 TRP 238 10474 -62.7 -71.7 29 9.0 -62.8 360 13 317.3 317.3 287.9 317.3 0.01 WND Sounding variables and indices 1000-500 mb thick: 5351.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 22.35 % Est. max temperature: 11.76 C = 53.16 F Sfc-Lift cond lev (LCL): 833.03 mb = 1617.32 m = 5306.10 ft T: -1.30 C 700-500 lapse rate: 7.40 C/km ThetaE index: 3.04 C Layer 925.0- 916.0 mb Conv cond level (CCL): 563.78 mb = 4629.57 m = 15188.68 ft Mean mixing ratio: 1.42 g/kg Conv temperature: 19.31 C = 66.77 F Cap Strength: 12.32 C Lifted Index: 13.31 C Risk: None Lifted Index @300 mb: 17.54 C Lifted Index @700 mb: 11.00 C Showalter Index: 10.97 C Risk: None Total Totals Index: 35.60 C Risk: None Vertical Totals Index: 24.80 C Cross Totals Index: 10.80 C K Index: -10.50 Risk: None Sweat Index: 29.00 Risk: None Energy Index: 2.83 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 45.49 J/kg Max Up Vert Vel: 9.54 m/s Conv Inhibition (B-): 58007.85 J/kg Cap Strength: 12.58 C Lift Cond Lev (LCL): 719.68 mb = 2778.75 m = 9116.52 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 294 at 7 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 ---------------------------------------------------------- 0 930 741 10 1 -0.2 -1.0 | 106 7 -6.7 1.9 1 925 784 65 1 -0.9 -0.4 | 108 8 -7.5 2.5 2 850 1456 175 7 -0.6 7.0 | 144 12 -7.2 9.8 3 700 2997 255 7 6.8 1.8 | 182 5 0.2 4.7 4 500 5510 275 15 14.9 -1.3 | 259 9 8.4 1.6 5 400 7100 305 9 7.4 -5.2 | 341 2 0.8 -2.3 6 300 9020 345 9 2.3 -8.7 | 36 7 -4.2 -5.8 7 250 10170 5 17 -1.5 -16.9 | 30 16 -8.0 -14.1 8 238 10474 360 13 -0.0 -13.0 | 33 12 -6.6 -10.1 9 200 11570 5 5 -0.4 -5.0 | 73 7 -7.0 -2.1 10 150 13420 115 5 -4.5 2.1 | 114 12 -11.1 5.0 11 100 16040 135 5 -3.5 3.5 | 122 12 -10.1 6.4 12 70 18340 290 5 4.7 -1.7 | 122 2 -1.9 1.2 13 50 20520 135 7 -4.9 4.9 | 124 14 -11.5 7.8 14 30 23820 105 9 -8.7 2.3 | 109 16 -15.3 5.2 15 20 26440 70 13 -12.2 -4.4 | 85 19 -18.8 -1.6 Wind Parameters Mean winds (0-6000m): 263.7 at 9.6 knts Storm direction: 293.7 at 7.2 knts Shear (0-3000m) pos: 1.7 neg: 0.0 tot: 1.7 10-3/s Storm rel Dir Shear (0-3000m): 106.0 deg Storm rel helicity (0-3000m) pos: 41.1 neg: 0.0 tot: 41.1 m^2/s^2 ave: 13.7 10^-3 m/s^2 rel: 0.70 Storm rel vorticity (0-3000m) horiz: 3.9 stream: 2.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.48 Bulk Shear: 18.36 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 ------------------------------------------------------------------------------- 500 128 3 118 10| 5.9 0.0 5.9| 9.9 0.0 9.9 19.8 0.53| 6.8 3.6 1000 173 5 137 10| 4.1 0.0 4.1| 27.7 0.0 27.7 27.7 0.72| 6.5 4.7 1500 186 5 144 10| 2.7 0.0 2.7| 33.7 0.0 33.7 22.5 0.72| 5.4 3.9 2000 199 6 151 10| 2.0 0.0 2.0| 37.1 0.0 37.1 18.5 0.69| 4.9 3.3 2500 212 6 158 9| 1.7 0.0 1.7| 38.9 0.0 38.9 15.6 0.68| 4.4 3.0 3000 224 7 165 8| 1.7 0.0 1.7| 41.1 0.0 41.1 13.7 0.70| 3.9 2.8 4000 243 8 182 6| 1.6 0.0 1.6| 45.9 0.0 45.9 11.5 0.72| 3.4 2.5 5000 256 9 203 5| 1.5 0.0 1.5| 52.2 0.0 52.2 10.4 0.73| 3.2 2.3 6000 264 10 217 5| 0.9 0.0 0.9| 57.1 0.0 57.1 9.5 0.72| 3.1 2.2 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20250421.00.gif