UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050200.upa.cvt Date: 0000Z 2 MAY 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 2 MAY 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 95 1 925 724 20 3 SFC 923 741 -0.3 -3.2 81 2.9 -1.4 20 3 279.2 279.7 275.7 288.3 3.27 3 856 1331 -5.5 -9.2 75 3.7 -6.7 111 3 279.8 280.2 274.6 286.1 2.22 4 850 1386 -5.9 -9.4 76 3.5 -7.0 120 3 280.0 280.3 274.7 286.2 2.20 5 772 2134 -9.7 -14.4 69 4.7 -11.0 65 4 283.7 284.0 275.9 288.5 1.62 6 708 2795 -14.9 -22.9 50 8.0 -16.5 16 5 285.1 285.2 275.5 287.7 0.86 7 700 2881 -15.5 -23.5 50 8.0 -17.1 10 5 285.3 285.5 275.5 287.8 0.82 8 605 3961 -24.3 -29.2 64 4.9 -25.0 329 5 287.3 287.4 276.2 289.1 0.56 9 591 4131 -24.9 -29.6 65 4.7 -25.5 322 5 288.5 288.6 276.8 290.3 0.56 10 535 4849 -28.5 -34.5 56 6.0 -29.2 294 5 292.6 292.6 278.5 293.8 0.38 11 500 5330 -31.7 -41.7 37 10.0 -32.5 275 5 294.4 294.4 279.1 295.1 0.20 12 475 5693 -34.7 -46.7 29 12.0 -35.4 281 5 295.0 295.0 279.3 295.4 0.12 13 400 6880 -43.3 -53.3 32 10.0 -43.6 300 7 298.7 298.7 280.8 299.0 0.07 14 369 7415 -47.7 -57.7 31 10.0 -47.9 298 8 299.8 299.8 281.3 300.0 0.04 15 322 8303 -51.7 -61.7 29 10.0 -51.9 295 9 306.2 306.2 283.9 306.3 0.03 16 300 8760 -51.7 -61.7 29 10.0 -51.9 285 15 312.5 312.5 286.2 312.6 0.03 17 250 9960 -49.7 -61.7 23 12.0 -50.0 275 17 332.2 332.2 292.3 332.3 0.04 18 200 11410 -48.3 -65.3 12 17.0 -48.8 265 15 356.3 356.3 298.0 356.4 0.03 19 199 11443 -48.1 -65.1 12 17.0 -48.6 265 15 357.1 357.1 298.1 357.2 0.03 20 150 13310 -48.9 -69.9 7 21.0 -49.6 285 11 385.8 385.8 303.2 385.9 0.02 21 101 15895 -50.1 -74.1 4 24.0 -51.0 280 5 429.7 429.7 308.8 429.8 0.02 22 100 15960 -50.1 -74.1 4 24.0 -51.0 280 5 430.9 430.9 308.9 431.0 0.02 23 70 18290 -49.1 -74.1 4 25.0 -50.5 235 5 479.3 479.4 313.4 479.5 0.02 24 62 19085 -48.1 -74.1 3 26.0 -49.8 217 5 498.5 498.5 314.8 498.7 0.03 25 51 20361 -50.7 -75.7 4 25.0 -52.2 188 5 521.0 521.0 316.4 521.2 0.03 26 50 20490 -49.7 -74.7 4 25.0 -51.4 185 5 526.4 526.4 316.7 526.5 0.03 27 30 23820 -50.3 -75.3 4 25.0 -52.7 140 3 607.5 607.5 321.0 607.9 0.05 28 26 24762 -48.5 -73.5 4 25.0 -51.7 140 4 638.0 638.0 322.2 638.6 0.07 29 24 25288 -50.5 -75.5 4 25.0 -53.3 140 4 647.0 647.0 322.6 647.4 0.06 30 20 26490 -47.3 -73.3 4 26.0 -51.5 140 5 691.4 691.4 324.2 692.2 0.09 31 11 30461 -45.5 -71.5 4 26.0 -52.3 826.9 827.0 328.0 829.2 0.22 TRP 322 8303 -51.7 -61.7 29 10.0 -51.9 295 9 306.2 306.2 283.9 306.3 0.03 WND Sounding variables and indices 1000-500 mb thick: 5235.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.23 inches Sfc-500 mean rel hum: 62.15 % Est. max temperature: 4.06 C = 39.31 F Sfc-Lift cond lev (LCL): 882.05 mb = 1096.62 m = 3597.79 ft T: -3.43 C 700-500 lapse rate: 6.61 C/km ThetaE index: 2.14 C Layer 856.0- 850.0 mb Conv cond level (CCL): 795.77 mb = 1898.38 m = 6228.21 ft Mean mixing ratio: 2.53 g/kg Conv temperature: 2.97 C = 37.35 F Cap Strength: 5.70 C Lifted Index: 6.81 C Risk: None Lifted Index @300 mb: 18.12 C Lifted Index @700 mb: 2.15 C Showalter Index: 7.36 C Risk: None Total Totals Index: 48.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.80 C Cross Totals Index: 22.30 C K Index: 8.40 Risk: None Sweat Index: 11.00 Risk: None Energy Index: 1.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.94 J/kg Max Up Vert Vel: 3.72 m/s Conv Inhibition (B-): 60856.70 J/kg Cap Strength: 6.56 C Lift Cond Lev (LCL): 828.28 mb = 1587.15 m = 5207.13 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 352 at 4 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 ---------------------------------------------------------- 0 923 741 20 3 -1.0 -2.8 | 115 2 -1.6 0.7 1 850 1386 120 3 -2.6 1.5 | 148 6 -3.1 5.0 2 700 2881 10 5 -0.9 -4.9 | 45 2 -1.4 -1.4 3 500 5330 275 5 5.0 -0.4 | 235 5 4.5 3.1 4 400 6880 300 7 6.1 -3.5 | 269 6 5.5 0.0 5 322 8303 295 9 8.2 -3.8 | 272 8 7.6 -0.3 6 300 8760 285 15 14.5 -3.9 | 271 14 14.0 -0.3 7 250 9960 275 17 16.9 -1.5 | 263 17 16.4 2.1 8 200 11410 265 15 14.9 1.3 | 251 15 14.4 4.9 9 150 13310 285 11 10.6 -2.8 | 266 10 10.1 0.7 10 100 15960 280 5 4.9 -0.9 | 239 5 4.4 2.7 11 70 18290 235 5 4.1 2.9 | 209 7 3.6 6.4 12 50 20490 185 5 0.4 5.0 | 179 9 -0.1 8.5 13 30 23820 140 3 -1.9 2.3 | 157 6 -2.5 5.8 14 20 26490 140 5 -3.2 3.8 | 153 8 -3.7 7.4 Wind Parameters Mean winds (0-6000m): 321.5 at 4.8 knts Storm direction: 351.5 at 3.6 knts Shear (0-3000m) pos: 0.6 neg: 1.2 tot: 1.8 10-3/s Storm rel Dir Shear (0-3000m): -169.5 deg Storm rel helicity (0-3000m) pos: 2.9 neg: -8.3 tot: -5.4 m^2/s^2 ave: -1.8 10^-3 m/s^2 rel: -0.44 Storm rel vorticity (0-3000m) horiz: 2.7 stream: -1.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.61 Bulk Shear: 4.32 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 53 3 121 3| 3.9 0.0 3.9| 1.8 0.0 1.8 3.6 0.40| 4.2 1.7 1000 86 3 133 5| 1.9 0.3 2.2| 2.9 -1.9 1.0 1.0 0.18| 3.3 0.6 1500 79 3 127 5| 1.3 0.9 2.2| 2.9 -4.7 -1.8 -1.2 -0.12| 3.0 -0.4 2000 59 4 115 4| 1.0 1.3 2.3| 2.9 -6.8 -3.9 -1.9 -0.29| 3.0 -0.9 2500 40 4 101 3| 0.8 1.3 2.1| 2.9 -7.7 -4.8 -1.9 -0.38| 2.9 -1.1 3000 26 4 87 2| 0.6 1.2 1.8| 2.9 -8.3 -5.4 -1.8 -0.44| 2.7 -1.2 4000 2 4 43 1| 0.5 1.0 1.5| 2.9 -10.2 -7.3 -1.8 -0.49| 2.4 -1.2 5000 340 4 303 1| 0.3 0.8 1.2| 4.0 -12.0 -8.0 -1.6 -0.46| 2.2 -1.0 6000 322 5 275 2| 0.1 0.7 0.8| 7.2 -12.0 -4.8 -0.8 -0.33| 2.1 -0.7 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20250502.00.gif