UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042912.upa.cvt Date: 1200Z 29 APR 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1200Z 29 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 201 SFC 937 757 18.0 6.0 45 12.0 11.2 90 7 296.6 297.8 287.1 315.0 6.26 2 925 870 16.2 6.2 51 10.0 10.6 65 9 295.9 297.0 286.9 314.7 6.43 3 850 1581 9.4 1.4 57 8.0 5.4 85 11 296.0 296.9 285.5 310.7 4.98 4 700 3158 -1.5 -15.5 34 14.0 -6.1 105 3 300.8 301.1 283.8 306.0 1.63 5 500 5750 -20.1 -43.1 11 23.0 -22.8 70 13 308.5 308.6 285.0 309.1 0.17 6 400 7360 -33.9 -46.9 26 13.0 -34.8 55 15 310.9 311.0 285.8 311.4 0.14 7 300 9310 -49.1 -59.1 30 10.0 -49.4 65 19 316.1 316.2 287.5 316.3 0.04 8 250 10480 -57.1 -69.1 20 12.0 -57.2 75 33 321.2 321.2 289.1 321.2 0.01 9 234 10897 -59.1 -69.1 26 10.0 -59.2 70 23 324.3 324.3 290.0 324.3 0.01 10 200 11880 -60.3 -78.3 8 18.0 -60.4 60 25 337.3 337.3 293.6 337.3 0.00 11 150 13680 -57.9 -84.9 2 27.0 -58.2 15 17 370.3 370.3 300.6 370.3 0.00 12 100 16230 -58.7 -86.7 2 28.0 -59.0 5 15 414.3 414.3 307.0 414.3 0.00 TRP 234 10897 -59.1 -69.1 26 10.0 -59.2 70 23 324.3 324.3 290.0 324.3 0.01 WND Sounding variables and indices 1000-500 mb thick: 5549.00 m Freezing level: 720.64 mb = 2940.98 m = 9648.77 ft Wetbulb zero: 780.10 mb = 2278.02 m = 7473.73 ft Precipitable water: 0.48 inches Sfc-500 mean rel hum: 34.27 % Est. max temperature: 19.31 C = 66.76 F Sfc-Lift cond lev (LCL): 783.06 mb = 2247.30 m = 7372.94 ft T: 4.79 C 700-500 lapse rate: 7.18 C/km ThetaE index: 9.00 C Layer 925.0- 500.0 mb Conv cond level (CCL): 732.81 mb = 2785.92 m = 9140.04 ft Mean mixing ratio: 5.65 g/kg Conv temperature: 21.04 C = 69.88 F Cap Strength: 2.24 C Lifted Index: 0.62 C Risk: Showers probable Lifted Index @300 mb: 2.79 C Lifted Index @700 mb: 1.35 C Showalter Index: 1.79 C Risk: Showers probable Total Totals Index: 51.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 29.50 C Cross Totals Index: 21.50 C K Index: 16.90 Risk: < 20 % chance of thunderstorms Sweat Index: 91.80 Risk: None Energy Index: -0.24 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.69 J/kg Max Up Vert Vel: 1.84 m/s Conv Inhibition (B-): 7846.17 J/kg Cap Strength: 2.24 C Lift Cond Lev (LCL): 772.76 mb = 2354.85 m = 7725.78 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 106 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 ---------------------------------------------------------- 0 937 757 90 7 -7.0 0.0 | 16 2 -0.5 -1.8 1 925 870 65 9 -8.2 -3.8 | 17 6 -1.7 -5.6 2 850 1581 85 11 -11.0 -1.0 | 58 5 -4.5 -2.8 3 700 3158 105 3 -2.9 0.8 | 287 4 3.6 -1.1 4 500 5750 70 13 -12.2 -4.4 | 43 9 -5.8 -6.3 5 400 7360 55 15 -12.3 -8.6 | 29 12 -5.8 -10.4 6 300 9310 65 19 -17.2 -8.0 | 47 15 -10.8 -9.9 7 250 10480 75 33 -31.9 -8.5 | 68 27 -25.4 -10.4 8 234 10897 70 23 -21.6 -7.9 | 57 18 -15.2 -9.7 9 200 11880 60 25 -21.7 -12.5 | 47 21 -15.2 -14.3 10 150 13680 15 17 -4.4 -16.4 | 354 18 2.1 -18.3 11 100 16230 5 15 -1.3 -14.9 | 343 18 5.2 -16.8 Wind Parameters Mean winds (0-6000m): 75.8 at 9.0 knts Storm direction: 105.8 at 6.7 knts Shear (0-3000m) pos: 1.2 neg: 0.9 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): -61.3 deg Storm rel helicity (0-3000m) pos: 6.3 neg: -1.8 tot: 4.4 m^2/s^2 ave: 1.5 10^-3 m/s^2 rel: 0.07 Storm rel vorticity (0-3000m) horiz: 3.1 stream: 0.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 26.40 Bulk Shear: 0.06 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 72 9 26 5| 0.0 3.8 3.8| 2.9 0.0 2.9 5.8 0.36| 5.8 2.1 1000 78 10 39 5| 1.0 1.9 2.9| 5.6 -0.1 5.5 5.5 0.46| 4.3 2.0 1500 81 10 42 4| 1.3 1.3 2.5| 5.6 -0.6 4.9 3.3 0.27| 3.8 1.0 2000 83 9 38 4| 1.5 1.0 2.5| 5.6 -1.4 4.2 2.1 0.06| 3.5 0.2 2500 84 8 25 3| 1.5 0.8 2.3| 5.7 -1.8 3.8 1.5 0.01| 3.3 0.0 3000 86 7 17 2| 1.2 0.9 2.2| 6.3 -1.8 4.4 1.5 0.07| 3.1 0.2 4000 85 7 16 2| 0.9 1.2 2.2| 7.7 -1.8 5.9 1.5 0.18| 2.9 0.5 5000 80 8 23 4| 0.7 1.4 2.2| 7.9 -2.4 5.5 1.1 0.14| 2.8 0.4 6000 76 9 29 5| 0.6 1.3 2.0| 7.9 -6.0 1.9 0.3 0.08| 2.5 0.2 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20250429.12.gif