UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041706.upa.cvt Date: 0600Z 17 APR 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:0600Z 17 APR 25 Station: ETHA WMO ident: 10954 Latitude: 47.83 Longitude: 10.87 Elevation: 757.00 ------------------------------------------------------------------------------- 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 51 1 925 703 30 3 SFC 919 757 7.2 6.3 94 0.9 6.7 30 3 287.2 288.3 283.6 305.6 6.52 3 850 1395 4.0 4.0 100 0.0 4.0 105 3 290.3 291.4 284.4 307.5 6.00 4 700 2976 0.0 -3.1 80 3.1 -1.4 160 29 302.5 303.3 287.3 315.7 4.35 5 500 5600 -15.1 -25.1 42 10.0 -17.5 175 25 314.6 314.8 288.1 318.0 1.00 6 400 7240 -30.1 -36.1 56 6.0 -30.9 140 25 315.9 316.0 287.9 317.4 0.44 7 300 9220 -47.1 -54.1 45 7.0 -47.3 155 33 319.0 319.0 288.5 319.3 0.08 8 251 10365 -57.7 -62.7 53 5.0 -57.8 155 44 319.9 319.9 288.8 320.1 0.03 9 250 10390 -57.7 -62.7 53 5.0 -57.8 160 44 320.3 320.3 288.9 320.4 0.03 10 200 11800 -54.7 -79.7 3 25.0 -55.0 195 48 346.1 346.1 295.8 346.2 0.00 11 150 13670 -49.1 -82.1 1 33.0 -49.8 175 33 385.5 385.5 303.1 385.5 0.00 12 100 16280 -56.7 -85.7 1 29.0 -57.2 190 21 418.2 418.2 307.5 418.2 0.00 TRP 251 10365 -57.7 -62.7 53 5.0 -57.8 155 44 319.9 319.9 288.8 320.1 0.03 WND Sounding variables and indices 1000-500 mb thick: 5549.00 m Freezing level: 700.00 mb = 2976.00 m = 9763.66 ft Wetbulb zero: 739.78 mb = 2525.94 m = 8287.10 ft Precipitable water: 0.74 inches Sfc-500 mean rel hum: 74.74 % Est. max temperature: 16.32 C = 61.38 F Sfc-Lift cond lev (LCL): 906.50 mb = 868.94 m = 2850.83 ft T: 6.64 C 700-500 lapse rate: 5.75 C/km Conv cond level (CCL): 858.62 mb = 1312.47 m = 4305.96 ft Mean mixing ratio: 6.12 g/kg Conv temperature: 9.86 C = 49.75 F Cap Strength: 5.61 C Lifted Index: 9.08 C Risk: None Lifted Index @300 mb: 8.60 C Lifted Index @700 mb: 5.61 C Showalter Index: 8.79 C Risk: None Total Totals Index: 38.20 C Risk: None Vertical Totals Index: 19.10 C Cross Totals Index: 19.10 C K Index: 20.00 Risk: 20-40 % chance of thunderstorms Sweat Index: 79.00 Risk: None Energy Index: 2.22 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 20.76 J/kg Max Up Vert Vel: 6.44 m/s Conv Inhibition (B-): 12141.55 J/kg Cap Strength: 9.02 C Lift Cond Lev (LCL): 862.23 mb = 1278.26 m = 4193.72 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 193 at 16 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 ---------------------------------------------------------- 0 919 757 30 3 -1.5 -2.6 | 16 19 -5.1 -18.2 1 850 1395 105 3 -2.9 0.8 | 24 16 -6.5 -14.8 2 700 2976 160 29 -9.9 27.3 | 131 18 -13.5 11.7 3 500 5600 175 25 -2.2 24.9 | 148 11 -5.8 9.3 4 400 7240 140 25 -16.1 19.2 | 100 20 -19.7 3.6 5 300 9220 155 33 -13.9 29.9 | 129 23 -17.6 14.3 6 251 10365 155 44 -18.6 39.9 | 138 33 -22.2 24.3 7 250 10390 160 44 -15.0 41.3 | 144 32 -18.7 25.8 8 200 11800 195 48 12.4 46.4 | 196 32 8.8 30.8 9 150 13670 175 33 -2.9 32.9 | 159 18 -6.5 17.3 10 100 16280 190 21 3.6 20.7 | 180 5 0.0 5.1 Wind Parameters Mean winds (0-6000m): 163.1 at 21.3 knts Storm direction: 193.1 at 16.0 knts Shear (0-3000m) pos: 5.1 neg: 0.0 tot: 5.1 10-3/s Storm rel Dir Shear (0-3000m): 119.7 deg Storm rel helicity (0-3000m) pos: 151.5 neg: 0.0 tot: 151.5 m^2/s^2 ave: 50.5 10^-3 m/s^2 rel: 0.94 Storm rel vorticity (0-3000m) horiz: 6.3 stream: 5.9 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.31 Bulk Shear: 65.99 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 57 3 20 18| 3.0 0.0 3.0| 11.0 0.0 11.0 22.1 0.74| 3.2 2.4 1000 94 4 27 17| 4.8 0.0 4.8| 38.3 0.0 38.3 38.3 0.88| 5.1 4.4 1500 122 7 39 15| 6.2 0.0 6.2| 77.5 0.0 77.5 51.6 0.94| 6.5 6.1 2000 143 11 55 12| 7.0 0.0 7.0|122.6 0.0 122.6 61.3 0.96| 7.6 7.3 2500 154 14 73 10| 6.3 0.0 6.3|147.8 0.0 147.8 59.1 0.95| 7.3 6.9 3000 157 16 86 10| 5.1 0.0 5.1|151.5 0.0 151.5 50.5 0.94| 6.3 5.9 4000 160 19 103 10| 3.7 0.0 3.7|157.7 0.0 157.7 39.4 0.90| 5.2 4.7 5000 164 21 114 10| 2.9 0.1 3.0|161.7 -3.7 158.0 31.6 0.83| 4.5 3.7 6000 163 21 116 11| 2.4 0.9 3.3|161.7 -32.0 129.7 21.6 0.54| 4.6 2.5 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20250417.06.gif