UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042418.upa.cvt Date: 1800Z 24 APR 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 24 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 143 SFC 929 757 10.0 3.0 62 7.0 6.5 270 7 289.2 290.1 282.9 303.8 5.11 2 925 797 9.4 1.4 57 8.0 5.5 235 5 288.9 289.7 282.2 302.0 4.57 3 850 1490 2.6 0.2 84 2.4 1.5 245 9 288.9 289.7 282.1 302.0 4.56 4 700 3031 -6.7 -8.1 90 1.4 -7.2 225 11 295.1 295.6 283.0 303.9 2.96 5 500 5590 -21.7 -23.3 87 1.6 -22.1 190 25 306.6 306.8 285.5 310.4 1.17 6 400 7200 -33.3 -35.0 85 1.7 -33.5 190 31 311.7 311.8 286.5 313.4 0.49 7 300 9150 -49.5 -56.5 44 7.0 -49.7 190 31 315.6 315.6 287.3 315.8 0.06 8 290 9372 -50.5 -65.5 15 15.0 -50.8 200 23 317.2 317.2 287.9 317.3 0.02 9 250 10340 -50.7 -70.7 8 20.0 -51.0 290 23 330.7 330.7 291.9 330.7 0.01 10 200 11780 -52.3 -77.3 3 25.0 -52.7 295 27 349.9 349.9 296.6 350.0 0.01 11 150 13640 -52.3 -83.3 1 31.0 -52.8 315 11 380.0 380.0 302.2 380.0 0.00 12 100 16240 -56.7 -86.7 1 30.0 -57.2 305 15 418.2 418.2 307.5 418.2 0.00 TRP 290 9372 -50.5 -65.5 15 15.0 -50.8 200 23 317.2 317.2 287.9 317.3 0.02 WND Sounding variables and indices 1000-500 mb thick: 5447.00 m Freezing level: 808.06 mb = 1920.82 m = 6301.82 ft Wetbulb zero: 824.49 mb = 1731.83 m = 5681.77 ft Precipitable water: 0.58 inches Sfc-500 mean rel hum: 85.28 % Est. max temperature: 12.45 C = 54.41 F Sfc-Lift cond lev (LCL): 835.10 mb = 1630.37 m = 5348.91 ft T: 1.75 C 700-500 lapse rate: 5.86 C/km ThetaE index: 1.83 C Layer 925.0- 700.0 mb Conv cond level (CCL): 791.11 mb = 2059.83 m = 6757.90 ft Mean mixing ratio: 4.55 g/kg Conv temperature: 11.97 C = 53.55 F Cap Strength: 1.54 C Lifted Index: 5.82 C Risk: None Lifted Index @300 mb: 9.72 C Lifted Index @700 mb: 1.54 C Showalter Index: 5.88 C Risk: None Total Totals Index: 46.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.30 C Cross Totals Index: 21.90 C K Index: 23.10 Risk: 20-40 % chance of thunderstorms Sweat Index: 45.40 Risk: None Energy Index: 1.70 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.09 J/kg Max Up Vert Vel: 2.04 m/s Conv Inhibition (B-): 12045.14 J/kg Cap Strength: 5.62 C Lift Cond Lev (LCL): 817.00 mb = 1804.30 m = 5919.56 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 234 at 12 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 ---------------------------------------------------------- 0 929 757 270 7 7.0 -0.0 | 22 8 -3.0 -7.4 1 925 797 235 5 4.1 2.9 | 53 7 -5.9 -4.5 2 850 1490 245 9 8.2 3.8 | 28 4 -1.9 -3.5 3 700 3031 225 11 7.8 7.8 | 101 2 -2.3 0.4 4 500 5590 190 25 4.3 24.6 | 162 18 -5.7 17.3 5 400 7200 190 31 5.4 30.5 | 169 24 -4.6 23.2 6 300 9150 190 31 5.4 30.5 | 169 24 -4.6 23.2 7 290 9372 200 23 7.9 21.6 | 171 14 -2.2 14.3 8 250 10340 290 23 21.6 -7.9 | 323 19 11.6 -15.2 9 200 11780 295 27 24.5 -11.4 | 322 24 14.4 -18.8 10 150 13640 315 11 7.8 -7.8 | 8 15 -2.3 -15.1 11 100 16240 305 15 12.3 -8.6 | 352 16 2.3 -16.0 Wind Parameters Mean winds (0-6000m): 203.8 at 16.6 knts Storm direction: 233.8 at 12.4 knts Shear (0-3000m) pos: 0.0 neg: 2.1 tot: 2.1 10-3/s Storm rel Dir Shear (0-3000m): 141.3 deg Storm rel helicity (0-3000m) pos: 11.9 neg: -2.8 tot: 9.0 m^2/s^2 ave: 3.0 10^-3 m/s^2 rel: 0.49 Storm rel vorticity (0-3000m) horiz: 2.8 stream: 1.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.11 Bulk Shear: 19.36 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 ------------------------------------------------------------------------------- 500 240 6 47 6| 0.0 3.8 3.8| 7.4 -1.7 5.7 11.5 0.44| 6.6 2.9 1000 242 8 41 5| 0.0 2.4 2.4| 7.6 -2.8 4.8 4.8 0.24| 4.3 1.1 1500 241 8 41 4| 0.0 2.0 2.0| 8.2 -2.8 5.4 3.6 0.30| 3.3 1.0 2000 238 9 44 4| 0.0 1.8 1.8| 9.0 -2.8 6.1 3.1 0.37| 2.8 1.1 2500 235 9 51 3| 0.0 1.9 1.9| 10.2 -2.8 7.4 2.9 0.47| 2.7 1.3 3000 231 10 65 3| 0.0 2.1 2.1| 11.9 -2.8 9.0 3.0 0.49| 2.8 1.4 4000 221 12 127 3| 0.0 2.4 2.4| 12.8 -3.5 9.3 2.3 0.36| 3.0 1.1 5000 210 14 150 6| 0.0 2.6 2.6| 13.7 -9.4 4.3 0.9 0.23| 3.1 0.7 6000 204 17 157 9| 0.0 2.5 2.5| 22.2 -9.4 12.8 2.1 0.25| 2.9 0.7 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20250424.18.gif