UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042818.upa.cvt Date: 1800Z 28 APR 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 28 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 186 SFC 936 757 18.6 6.6 45 12.0 11.7 40 11 297.3 298.5 287.6 316.5 6.54 2 925 858 17.2 5.2 45 12.0 10.5 30 9 296.9 298.0 286.9 314.5 6.00 3 850 1571 10.4 4.4 66 6.0 7.2 65 13 297.0 298.2 287.1 315.2 6.17 4 700 3150 -1.9 -7.9 63 6.0 -4.3 245 1 300.4 300.9 285.2 309.6 3.01 5 500 5740 -20.1 -37.1 20 17.0 -22.5 70 5 308.5 308.6 285.2 309.6 0.32 6 400 7350 -33.1 -47.1 23 14.0 -34.1 25 5 312.0 312.0 286.2 312.5 0.14 7 300 9300 -48.9 -54.9 50 6.0 -49.1 15 7 316.4 316.4 287.6 316.7 0.07 8 250 10470 -58.1 -63.1 53 5.0 -58.2 330 7 319.7 319.7 288.7 319.8 0.03 9 212 11499 -62.3 -69.3 39 7.0 -62.4 360 13 328.6 328.6 291.3 328.6 0.02 10 200 11860 -61.3 -75.3 14 14.0 -61.4 355 11 335.7 335.7 293.2 335.7 0.01 11 150 13660 -57.5 -83.5 2 26.0 -57.8 335 11 371.0 371.0 300.8 371.0 0.00 12 100 16220 -57.9 -85.9 2 28.0 -58.3 350 7 415.9 415.9 307.2 415.9 0.00 TRP 212 11499 -62.3 -69.3 39 7.0 -62.4 360 13 328.6 328.6 291.3 328.6 0.02 WND Sounding variables and indices 1000-500 mb thick: 5554.00 m Freezing level: 723.17 mb = 2906.09 m = 9534.30 ft Wetbulb zero: 756.37 mb = 2520.08 m = 8267.86 ft Precipitable water: 0.63 inches Sfc-500 mean rel hum: 50.99 % Est. max temperature: 19.71 C = 67.48 F Sfc-Lift cond lev (LCL): 782.44 mb = 2244.57 m = 7363.99 ft T: 5.15 C 700-500 lapse rate: 7.03 C/km ThetaE index: 5.58 C Layer 700.0- 500.0 mb Conv cond level (CCL): 749.37 mb = 2595.79 m = 8516.27 ft Mean mixing ratio: 6.09 g/kg Conv temperature: 20.52 C = 68.93 F Cap Strength: 1.58 C Lifted Index: -0.78 C Risk: Thunderstorms probable Lifted Index @300 mb: 1.41 C Lifted Index @700 mb: -0.10 C Showalter Index: -0.96 C Risk: Thunderstorms probable Total Totals Index: 55.00 C Risk: Severe Thunderstorms probable Vertical Totals Index: 30.50 C Cross Totals Index: 24.50 C K Index: 28.90 Risk: 40-60 % chance of thunderstorms Sweat Index: 203.80 Risk: None Energy Index: -1.11 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 127.80 J/kg Max Up Vert Vel: 15.99 m/s Conv Inhibition (B-): 42.74 J/kg Cap Strength: 1.58 C Lift Cond Lev (LCL): 773.94 mb = 2333.33 m = 7655.19 ft Lev Free Conv (LFC): 698.94 mb = 3161.62 m = 10372.66 ft Equ Level (EL): 358.94 mb = 8084.08 m = 26522.26 ft B at Equ Level: 126.80 J/kg Max Parcel Lev (MPL): 258.94 mb = 10244.44 m = 33609.95 ft Wind level data Storm motion: 90 at 4 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 ---------------------------------------------------------- 0 936 757 40 11 -7.1 -8.4 | 20 9 -3.0 -8.4 1 925 858 30 9 -4.5 -7.8 | 3 8 -0.5 -7.8 2 850 1571 65 13 -11.8 -5.5 | 55 9 -7.8 -5.5 3 700 3150 245 1 0.9 0.4 | 265 5 4.9 0.4 4 500 5740 70 5 -4.7 -1.7 | 22 2 -0.7 -1.7 5 400 7350 25 5 -2.1 -4.5 | 337 5 1.9 -4.5 6 300 9300 15 7 -1.8 -6.8 | 342 7 2.2 -6.8 7 250 10470 330 7 3.5 -6.1 | 309 10 7.5 -6.1 8 212 11499 360 13 -0.0 -13.0 | 343 14 4.0 -13.0 9 200 11860 355 11 1.0 -11.0 | 336 12 5.0 -11.0 10 150 13660 335 11 4.6 -10.0 | 319 13 8.7 -10.0 11 100 16220 350 7 1.2 -6.9 | 323 9 5.2 -6.9 Wind Parameters Mean winds (0-6000m): 59.9 at 5.4 knts Storm direction: 89.9 at 4.0 knts Shear (0-3000m) pos: 2.1 neg: 0.2 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): -130.1 deg Storm rel helicity (0-3000m) pos: 61.1 neg: -7.0 tot: 54.1 m^2/s^2 ave: 18.0 10^-3 m/s^2 rel: 0.76 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 4.9 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 33.39 Bulk Shear: 3.83 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 40 10 17 8| 1.9 0.0 1.9| 8.7 -5.2 3.5 7.0 0.25| 6.9 1.7 1000 54 11 38 8| 4.6 0.0 4.6| 26.8 -5.2 21.6 21.6 0.63| 7.8 4.9 1500 66 11 53 7| 5.1 0.0 5.1| 44.2 -5.2 39.0 26.0 0.78| 8.8 6.8 2000 62 9 45 6| 3.8 0.0 3.8| 56.2 -5.2 51.0 25.5 0.82| 8.4 6.9 2500 58 8 33 5| 2.5 0.0 2.5| 61.1 -5.4 55.7 22.3 0.82| 7.5 6.1 3000 59 7 28 4| 2.1 0.2 2.3| 61.1 -7.0 54.1 18.0 0.76| 6.4 4.9 4000 66 6 30 3| 1.6 0.5 2.1| 61.1 -10.2 50.9 12.7 0.63| 5.3 3.3 5000 61 5 15 3| 1.2 0.6 1.9| 61.1 -11.2 49.8 10.0 0.49| 4.8 2.3 6000 60 5 13 3| 1.0 0.5 1.6| 61.1 -12.3 48.7 8.1 0.43| 4.2 1.8 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20250428.18.gif