UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042913.upa.cvt Date: 1300Z 29 APR 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1300Z 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 186 SFC 936 757 20.0 6.0 40 14.0 12.0 50 9 298.7 299.9 287.9 317.3 6.27 2 925 860 18.2 4.2 39 14.0 10.5 20 11 297.9 298.9 286.9 314.4 5.59 3 850 1575 11.4 2.4 54 9.0 6.7 40 5 298.1 299.1 286.7 314.0 5.35 4 700 3158 -0.9 -17.9 26 17.0 -6.2 195 3 301.5 301.7 283.7 305.8 1.33 5 500 5750 -19.9 -42.9 11 23.0 -22.7 65 17 308.8 308.8 285.1 309.4 0.17 6 400 7360 -33.5 -53.5 12 20.0 -34.7 70 19 311.4 311.5 285.9 311.7 0.07 7 300 9310 -48.5 -64.5 14 16.0 -48.8 70 35 317.0 317.0 287.8 317.1 0.02 8 250 10490 -56.3 -69.3 18 13.0 -56.5 70 33 322.4 322.4 289.5 322.4 0.01 9 200 11880 -60.7 -75.7 12 15.0 -60.8 65 27 336.6 336.6 293.5 336.7 0.01 TRP WND Sounding variables and indices 1000-500 mb thick: 5564.00 m Freezing level: 710.98 mb = 3042.17 m = 9980.75 ft Wetbulb zero: 772.56 mb = 2353.85 m = 7722.53 ft Precipitable water: 0.46 inches Sfc-500 mean rel hum: 29.44 % Est. max temperature: 20.76 C = 69.37 F Sfc-Lift cond lev (LCL): 759.76 mb = 2490.12 m = 8169.58 ft T: 4.29 C 700-500 lapse rate: 7.33 C/km ThetaE index: 11.53 C Layer 925.0- 500.0 mb Conv cond level (CCL): 712.30 mb = 3015.93 m = 9894.65 ft Mean mixing ratio: 5.46 g/kg Conv temperature: 22.41 C = 72.34 F Cap Strength: 2.20 C Lifted Index: -0.17 C Risk: Thunderstorms probable Lifted Index @300 mb: 2.28 C Lifted Index @700 mb: 1.19 C Showalter Index: -0.03 C Risk: Thunderstorms probable Total Totals Index: 53.60 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 31.30 C Cross Totals Index: 22.30 C K Index: 16.70 Risk: < 20 % chance of thunderstorms Sweat Index: 147.80 Risk: None Energy Index: -0.88 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 40.38 J/kg Max Up Vert Vel: 8.99 m/s Conv Inhibition (B-): 102.17 J/kg Cap Strength: 2.20 C Lift Cond Lev (LCL): 744.56 mb = 2654.86 m = 8710.07 ft Lev Free Conv (LFC): 569.56 mb = 4746.61 m = 15572.66 ft Equ Level (EL): 369.56 mb = 7896.55 m = 25907.01 ft B at Equ Level: 38.86 J/kg Max Parcel Lev (MPL): 319.56 mb = 8881.91 m = 29139.77 ft Wind level data Storm motion: 95 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 ---------------------------------------------------------- 0 936 757 50 9 -6.9 -5.8 | 358 6 0.3 -6.4 1 925 860 20 11 -3.8 -10.3 | 343 11 3.4 -11.0 2 850 1575 40 5 -3.2 -3.8 | 318 6 3.9 -4.4 3 700 3158 195 3 0.8 2.9 | 254 8 7.9 2.3 4 500 5750 65 17 -15.4 -7.2 | 47 11 -8.2 -7.8 5 400 7360 70 19 -17.9 -6.5 | 56 13 -10.7 -7.1 6 300 9310 70 35 -32.9 -12.0 | 64 29 -25.7 -12.6 7 250 10490 70 33 -31.0 -11.3 | 63 27 -23.8 -11.9 8 200 11880 65 27 -24.5 -11.4 | 55 21 -17.3 -12.0 Wind Parameters Mean winds (0-6000m): 64.9 at 9.6 knts Storm direction: 94.9 at 7.2 knts Shear (0-3000m) pos: 1.9 neg: 0.3 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): -131.9 deg Storm rel helicity (0-3000m) pos: 2.2 neg: -23.8 tot: -21.6 m^2/s^2 ave: -7.2 10^-3 m/s^2 rel: -0.47 Storm rel vorticity (0-3000m) horiz: 4.6 stream: -2.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 7.73 Bulk Shear: 5.22 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 26 9 342 10| 0.0 3.1 3.1| 0.0 -7.6 -7.6 -15.3 -0.37| 9.3 -3.5 1000 30 8 335 8| 2.1 1.6 3.6| 0.0 -11.6 -11.6 -11.6 -0.43| 6.9 -2.9 1500 39 7 332 7| 2.7 1.0 3.7| 0.0 -14.2 -14.2 -9.5 -0.51| 5.9 -3.0 2000 43 6 327 6| 2.6 0.8 3.4| 0.1 -15.3 -15.1 -7.6 -0.47| 5.3 -2.5 2500 38 5 321 6| 2.3 0.6 2.9| 2.2 -16.6 -14.3 -5.7 -0.40| 4.8 -1.9 3000 52 5 322 5| 1.9 0.3 2.2| 2.2 -23.8 -21.6 -7.2 -0.47| 4.6 -2.2 4000 89 6 307 1| 1.4 1.1 2.5| 2.2 -39.2 -37.0 -9.3 -0.60| 4.7 -2.8 5000 64 8 359 4| 1.1 1.8 2.9| 2.2 -63.2 -60.9 -12.2 -0.68| 5.1 -3.5 6000 65 10 18 5| 0.9 1.5 2.4| 6.2 -63.2 -57.0 -9.5 -0.63| 4.4 -2.8 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20250429.13.gif