UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042318.upa.cvt Date: 1800Z 23 APR 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 23 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 75 1 925 745 60 11 SFC 923 757 16.4 6.4 52 10.0 10.7 60 11 296.3 297.4 287.2 315.4 6.54 3 850 1457 9.8 4.9 72 4.9 7.1 55 13 296.4 297.6 287.1 315.1 6.40 4 700 3032 -2.7 -3.3 96 0.6 -3.0 215 7 299.5 300.3 286.2 312.4 4.28 5 500 5610 -20.3 -22.4 83 2.1 -20.8 185 25 308.3 308.5 286.2 312.5 1.27 6 400 7230 -32.1 -43.1 33 11.0 -33.1 225 23 313.3 313.3 286.8 314.0 0.21 7 300 9190 -49.7 -53.7 63 4.0 -49.8 235 29 315.3 315.3 287.3 315.6 0.09 8 250 10350 -57.3 -63.3 46 6.0 -57.4 215 21 320.9 320.9 289.0 321.0 0.03 9 241 10582 -58.5 -64.5 46 6.0 -58.6 225 23 322.5 322.5 289.5 322.6 0.03 10 200 11770 -53.5 -80.5 2 27.0 -53.8 275 21 348.0 348.0 296.2 348.1 0.00 11 150 13630 -50.1 -82.1 1 32.0 -50.7 275 15 383.7 383.7 302.8 383.8 0.00 12 100 16250 -54.5 -85.5 1 31.0 -55.1 260 13 422.4 422.4 308.0 422.4 0.00 TRP 241 10582 -58.5 -64.5 46 6.0 -58.6 225 23 322.5 322.5 289.5 322.6 0.03 WND Sounding variables and indices 1000-500 mb thick: 5535.00 m Freezing level: 732.40 mb = 2691.80 m = 8831.26 ft Wetbulb zero: 744.18 mb = 2535.50 m = 8318.46 ft Precipitable water: 0.77 inches Sfc-500 mean rel hum: 83.83 % Est. max temperature: 18.09 C = 64.56 F Sfc-Lift cond lev (LCL): 794.46 mb = 2005.20 m = 6578.68 ft T: 5.45 C 700-500 lapse rate: 6.83 C/km ThetaE index: 3.00 C Layer 850.0- 500.0 mb Conv cond level (CCL): 770.61 mb = 2252.46 m = 7389.88 ft Mean mixing ratio: 6.39 g/kg Conv temperature: 18.13 C = 64.64 F Cap Strength: 1.16 C Lifted Index: -1.10 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.44 C Lifted Index @700 mb: -1.02 C Showalter Index: -1.10 C Risk: Thunderstorms probable Total Totals Index: 55.30 C Risk: Severe Thunderstorms probable Vertical Totals Index: 30.10 C Cross Totals Index: 25.20 C K Index: 34.40 Risk: 60-80 % chance of thunderstorms Sweat Index: 235.80 Risk: None Energy Index: -0.61 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 172.65 J/kg Max Up Vert Vel: 18.58 m/s Conv Inhibition (B-): 22.01 J/kg Cap Strength: 1.16 C Lift Cond Lev (LCL): 788.53 mb = 2065.98 m = 6778.06 ft Lev Free Conv (LFC): 733.53 mb = 2652.50 m = 8702.31 ft Equ Level (EL): 403.53 mb = 7166.28 m = 23511.14 ft B at Equ Level: 171.52 J/kg Max Parcel Lev (MPL): 243.53 mb = 10515.77 m = 34500.15 ft Wind level data Storm motion: 215 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 ---------------------------------------------------------- 0 923 757 60 11 -9.5 -5.5 | 47 22 -16.3 -15.1 1 850 1457 55 13 -10.6 -7.5 | 46 24 -17.4 -17.1 2 700 3032 215 7 4.0 5.7 | 36 5 -2.8 -3.9 3 500 5610 185 25 2.2 24.9 | 163 16 -4.6 15.3 4 400 7230 225 23 16.3 16.3 | 235 12 9.5 6.6 5 300 9190 235 29 23.8 16.6 | 248 18 17.0 7.0 6 250 10350 215 21 12.0 17.2 | 215 9 5.2 7.6 7 241 10582 225 23 16.3 16.3 | 235 12 9.5 6.6 8 200 11770 275 21 20.9 -1.8 | 309 18 14.1 -11.4 9 150 13630 275 15 14.9 -1.3 | 323 14 8.1 -10.9 10 100 16250 260 13 12.8 2.3 | 321 9 6.0 -7.4 Wind Parameters Mean winds (0-6000m): 185.3 at 15.7 knts Storm direction: 215.3 at 11.8 knts Shear (0-3000m) pos: 3.5 neg: 0.4 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 82.7 deg Storm rel helicity (0-3000m) pos: 70.7 neg: -10.6 tot: 60.1 m^2/s^2 ave: 20.0 10^-3 m/s^2 rel: 0.31 Storm rel vorticity (0-3000m) horiz: 6.1 stream: 1.9 10^-3/s Energy-Hel index: 0.07 Bulk Rich Number: 2.15 Bulk Shear: 80.16 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 58 12 47 23| 0.0 1.6 1.6| 0.0 -2.6 -2.6 -5.2 -0.27| 1.7 -0.4 1000 61 12 48 23| 3.1 0.8 4.0| 36.3 -4.0 32.4 32.4 0.59| 4.6 2.7 1500 72 12 53 22| 5.0 0.5 5.5| 66.2 -4.0 62.2 41.5 0.61| 6.4 3.9 2000 73 11 53 22| 4.8 0.4 5.2| 68.8 -6.2 62.6 31.3 0.41| 6.9 2.9 2500 69 10 51 21| 4.2 0.3 4.6| 69.2 -10.6 58.6 23.5 0.26| 6.6 1.7 3000 90 10 60 20| 3.5 0.4 3.9| 70.7 -10.6 60.1 20.0 0.31| 6.1 1.9 4000 164 12 99 10| 2.6 1.3 3.9| 72.4 -10.6 61.8 15.5 0.30| 5.6 1.7 5000 176 14 118 9| 2.1 1.6 3.8| 77.7 -13.9 63.9 12.8 0.26| 5.3 1.4 6000 185 16 138 8| 2.2 1.4 3.6|112.3 -13.9 98.5 16.4 0.37| 5.3 2.0 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20250423.18.gif