UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042612.upa.cvt Date: 1200Z 26 APR 25 Searching for U4507... Searching the city database file for: U4507 ... Date:1200Z 26 APR 25 Station: U4507 WMO ident: 24507 Latitude: 64.27 Longitude: 100.23 ------------------------------------------------------------------------------- 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 34 SFC 981 186 -0.7 -3.9 79 3.2 -1.9 90 3 273.9 274.4 272.3 281.9 2.91 2 925 650 -4.1 -6.8 81 2.7 -5.0 15 5 275.1 275.5 272.3 282.0 2.48 3 850 1315 -8.1 -10.9 80 2.8 -8.9 185 17 277.7 278.0 273.0 283.2 1.95 4 837 1435 -8.9 -11.8 79 2.9 -9.7 197 18 278.0 278.4 273.1 283.3 1.85 5 822 1574 -12.7 -15.8 78 3.1 -13.5 211 20 275.5 275.7 270.7 279.4 1.36 6 783 1942 -16.1 -19.4 76 3.3 -16.8 248 24 275.7 275.9 270.4 278.7 1.05 7 700 2780 -20.1 -23.5 74 3.4 -20.7 335 33 280.2 280.4 272.7 282.7 0.82 8 662 3192 -22.1 -25.3 75 3.2 -22.6 282.5 282.6 273.9 284.7 0.74 TRP WND Sounding variables and indices Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.21 inches Sfc-500 mean rel hum: 77.52 % Est. max temperature: 2.36 C = 36.25 F Sfc-Lift cond lev (LCL): 933.04 mb = 581.68 m = 1908.38 ft T: -3.60 C ThetaE index: 4.59 C Layer 822.0- 700.0 mb Conv cond level (CCL): 860.84 mb = 1215.34 m = 3987.29 ft Mean mixing ratio: 2.53 g/kg Conv temperature: 2.61 C = 36.71 F Cap Strength: 2.43 C Lifted Index @700 mb: 0.97 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 48.70 J/kg Max Up Vert Vel: 9.87 m/s Conv Inhibition (B-): 32.47 J/kg Cap Strength: 2.12 C Lift Cond Lev (LCL): 889.35 mb = 959.11 m = 3146.66 ft Lev Free Conv (LFC): 824.35 mb = 1551.70 m = 5090.81 ft Equ Level (EL): 724.35 mb = 2524.39 m = 8282.01 ft B at Equ Level: 48.13 J/kg Wind level data Storm motion: 333 at 13 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 ---------------------------------------------------------- 0 981 186 90 3 -3.0 0.0 | 143 15 -9.1 11.9 1 925 650 15 5 -1.3 -4.8 | 134 10 -7.4 7.1 2 850 1315 185 17 1.5 16.9 | 171 29 -4.6 28.8 3 700 2780 335 33 13.9 -29.9 | 336 20 7.8 -18.0 Wind Parameters Mean winds (0-6000m): 302.8 at 17.8 knts Storm direction: 332.8 at 13.4 knts Shear (0-3000m) pos: 6.1 neg: 1.1 tot: 7.1 10-3/s Storm rel Dir Shear (0-3000m): -166.1 deg Storm rel helicity (0-3000m) pos: 533.4 neg: -16.0 tot: 517.4 m^2/s^2 ave: 207.0 10^-3 m/s^2 rel: 0.77 Storm rel vorticity (0-3000m) horiz: 20.0 stream: 15.5 10^-3/s Energy-Hel index: 0.12 Bulk Rich Number: 1.05 Bulk Shear: 46.48 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 39 4 135 12| 0.0 5.3 5.3| 0.0 -10.8 -10.8 -21.6 -0.56| 5.8 -3.2 1000 108 7 138 19| 9.6 2.7 12.3| 82.5 -16.0 66.5 66.5 0.28| 15.4 4.3 1500 192 11 170 23| 9.1 1.8 10.9|253.8 -16.0 237.7 158.5 0.59| 18.0 10.5 2000 230 14 193 21| 7.4 1.3 8.8|397.3 -16.0 381.3 190.6 0.70| 19.1 13.3 2500 286 17 236 13| 6.1 1.1 7.1|533.4 -16.0 517.4 207.0 0.77| 20.8 16.1 3000 NO DATA | 6.1 1.1 7.1| | 4000 NO DATA | 6.1 1.1 7.1| | 5000 NO DATA | 6.1 1.1 7.1| | 6000 NO DATA | 6.1 1.1 7.1| | Wrote GIF file: /home/apache/climate/data/raob//U4507/skewt/U4507.skewt.20250426.12.gif