UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041718.upa.cvt Date: 1800Z 17 APR 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 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 64 1 925 718 280 7 SFC 920 757 9.2 6.8 85 2.4 7.9 280 7 289.2 290.4 284.7 308.3 6.74 3 850 1412 3.6 3.6 100 0.0 3.6 265 11 289.9 290.9 284.0 306.6 5.83 4 700 2977 -2.7 -2.8 99 0.1 -2.7 150 29 299.5 300.3 286.4 312.8 4.45 5 500 5560 -18.9 -24.9 59 6.0 -20.2 145 38 310.0 310.2 286.5 313.4 1.01 6 400 7180 -29.3 -54.3 7 25.0 -31.0 155 69 316.9 316.9 287.8 317.1 0.06 7 300 9160 -45.9 -57.9 25 12.0 -46.3 150 79 320.7 320.7 289.0 320.9 0.05 8 297 9227 -46.2 -58.6 23 12.4 -46.6 150 81 321.2 321.2 289.2 321.4 0.05 9 250 10360 -51.3 -70.3 9 19.0 -51.6 140 54 329.8 329.8 291.7 329.8 0.01 10 240 10624 -52.7 -71.7 8 19.0 -53.0 145 58 331.6 331.6 292.2 331.6 0.01 11 200 11800 -52.3 -78.3 3 26.0 -52.7 145 54 349.9 349.9 296.6 350.0 0.00 12 150 13690 -51.1 -82.1 1 31.0 -51.7 165 17 382.0 382.0 302.6 382.0 0.00 13 100 16300 -56.3 -85.3 1 29.0 -56.8 235 15 418.9 418.9 307.6 419.0 0.00 TRP 240 10624 -52.7 -71.7 8 19.0 -53.0 145 58 331.6 331.6 292.2 331.6 0.01 WND 297 9227 -46.2 -58.6 23 12.4 -46.6 150 81 321.2 321.2 289.2 321.4 0.05 Sounding variables and indices 1000-500 mb thick: 5496.00 m Freezing level: 764.29 mb = 2306.29 m = 7566.46 ft Wetbulb zero: 764.81 mb = 2263.27 m = 7425.34 ft Precipitable water: 0.72 inches Sfc-500 mean rel hum: 87.41 % Est. max temperature: 14.68 C = 58.42 F Sfc-Lift cond lev (LCL): 887.01 mb = 1059.23 m = 3475.11 ft T: 6.62 C 700-500 lapse rate: 6.27 C/km ThetaE index: 1.69 C Layer 850.0- 700.0 mb Conv cond level (CCL): 859.57 mb = 1319.33 m = 4328.47 ft Mean mixing ratio: 6.10 g/kg Conv temperature: 9.83 C = 49.70 F Cap Strength: 2.73 C Lifted Index: 5.10 C Risk: None Lifted Index @300 mb: 9.63 C Lifted Index @700 mb: 2.73 C Showalter Index: 5.60 C Risk: None Total Totals Index: 45.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.50 C Cross Totals Index: 22.50 C K Index: 26.00 Risk: 40-60 % chance of thunderstorms Sweat Index: 103.20 Risk: None Energy Index: 1.39 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.13 J/kg Max Up Vert Vel: 4.50 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 4.93 C Lift Cond Lev (LCL): 858.03 mb = 1334.16 m = 4377.10 ft Lev Free Conv (LFC): 853.03 mb = 1382.53 m = 4535.81 ft Equ Level (EL): 823.03 mb = 1671.88 m = 5485.11 ft B at Equ Level: 9.68 J/kg Max Parcel Lev (MPL): 773.03 mb = 2177.07 m = 7142.54 ft Wind level data Storm motion: 183 at 23 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 ---------------------------------------------------------- 0 920 757 280 7 6.9 -1.2 | 347 25 5.8 -24.4 1 850 1412 265 11 11.0 1.0 | 336 24 9.9 -22.2 2 700 2977 150 29 -14.5 25.1 | 97 16 -15.5 2.0 3 500 5560 145 38 -21.8 31.1 | 109 24 -22.8 8.0 4 400 7180 155 69 -29.2 62.5 | 143 50 -30.2 39.4 5 300 9160 150 79 -39.5 68.4 | 138 61 -40.5 45.3 6 297 9227 150 81 -40.5 70.1 | 139 63 -41.5 47.0 7 250 10360 140 54 -34.7 41.4 | 117 40 -35.8 18.2 8 240 10624 145 58 -33.3 47.5 | 125 42 -34.3 24.4 9 200 11800 145 54 -31.0 44.2 | 123 38 -32.0 21.1 10 150 13690 165 17 -4.4 16.4 | 39 9 -5.4 -6.7 11 100 16300 235 15 12.3 8.6 | 322 18 11.2 -14.5 Wind Parameters Mean winds (0-6000m): 152.6 at 30.9 knts Storm direction: 182.6 at 23.2 knts Shear (0-3000m) pos: 0.0 neg: 6.3 tot: 6.3 10-3/s Storm rel Dir Shear (0-3000m): 116.0 deg Storm rel helicity (0-3000m) pos: 6.1 neg: -92.6 tot: -86.5 m^2/s^2 ave: -28.8 10^-3 m/s^2 rel: -0.46 Storm rel vorticity (0-3000m) horiz: 9.0 stream: -4.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.06 Bulk Shear: 170.48 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 ------------------------------------------------------------------------------- 500 272 9 342 25| 0.0 3.6 3.6| 0.0 -22.8 -22.8 -45.6 -0.99| 3.6 -3.6 1000 262 10 337 24| 0.0 5.5 5.5| 0.0 -59.9 -59.9 -59.9 -0.83| 6.0 -5.0 1500 239 13 329 19| 0.0 7.0 7.0| 0.0 -81.3 -81.3 -54.2 -0.62| 8.4 -5.2 2000 206 16 327 11| 0.0 7.7 7.7| 0.0 -85.9 -85.9 -42.9 -0.56| 10.7 -6.0 2500 178 18 18 5| 0.0 7.2 7.2| 1.8 -92.6 -90.9 -36.3 -0.49| 10.5 -5.2 3000 168 20 57 6| 0.0 6.3 6.3| 6.1 -92.6 -86.5 -28.8 -0.46| 9.0 -4.1 4000 158 24 83 10| 0.0 5.2 5.2| 14.0 -92.6 -78.6 -19.7 -0.40| 7.2 -2.9 5000 154 27 93 13| 0.5 4.3 4.8| 38.2 -92.6 -54.4 -10.9 -0.30| 6.5 -1.9 6000 153 31 106 16| 2.1 3.6 5.7|150.2 -92.6 57.5 9.6 -0.08| 7.1 -0.6 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20250417.18.gif