UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042906.upa.cvt Date: 0600Z 29 APR 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:0600Z 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 210 SFC 936 757 5.4 4.7 95 0.7 5.1 250 3 283.9 284.9 281.3 299.8 5.72 2 925 872 11.6 7.4 75 4.2 9.3 90 1 291.2 292.4 285.7 311.1 6.99 3 850 1579 8.6 4.0 73 4.6 6.2 80 11 295.2 296.2 286.3 312.7 6.00 4 700 3154 -1.7 -10.7 50 9.0 -5.1 15 1 300.6 301.0 284.6 308.1 2.41 5 500 5740 -20.1 -43.1 11 23.0 -22.8 75 13 308.5 308.6 285.0 309.1 0.17 6 400 7350 -33.9 -43.9 36 10.0 -34.7 65 13 310.9 311.0 285.9 311.6 0.19 7 300 9300 -49.9 -54.9 56 5.0 -50.0 55 9 315.0 315.0 287.2 315.3 0.07 8 250 10470 -56.9 -67.9 24 11.0 -57.1 50 15 321.5 321.5 289.2 321.5 0.02 9 215 11419 -61.3 -70.3 29 9.0 -61.4 35 11 328.8 328.8 291.4 328.9 0.01 10 200 11870 -60.1 -76.1 11 16.0 -60.2 65 17 337.6 337.6 293.7 337.6 0.01 11 150 13670 -57.9 -83.9 2 26.0 -58.2 355 15 370.3 370.3 300.6 370.3 0.00 12 100 16220 -58.3 -86.3 2 28.0 -58.7 355 15 415.1 415.1 307.2 415.1 0.00 TRP 215 11419 -61.3 -70.3 29 9.0 -61.4 35 11 328.8 328.8 291.4 328.9 0.01 WND Sounding variables and indices 1000-500 mb thick: 5530.00 m Freezing level: 724.76 mb = 2894.05 m = 9494.80 ft Wetbulb zero: 767.71 mb = 2405.05 m = 7890.49 ft Precipitable water: 0.59 inches Sfc-500 mean rel hum: 47.06 % Est. max temperature: 18.67 C = 65.60 F Sfc-Lift cond lev (LCL): 925.99 mb = 861.54 m = 2826.56 ft T: 11.04 C 700-500 lapse rate: 7.12 C/km ThetaE index: 4.59 C Layer 700.0- 500.0 mb Conv cond level (CCL): 936.00 mb = 757.00 m = 2483.57 ft Mean mixing ratio: 6.38 g/kg Conv temperature: 6.24 C = 43.24 F Cap Strength: 2.80 C Lifted Index: 1.38 C Risk: Showers probable Lifted Index @300 mb: 2.87 C Lifted Index @700 mb: 1.80 C Showalter Index: 0.56 C Risk: Thunderstorms probable Total Totals Index: 52.80 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.70 C Cross Totals Index: 24.10 C K Index: 23.70 Risk: 20-40 % chance of thunderstorms Sweat Index: 159.00 Risk: None Energy Index: -0.68 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.11 J/kg Max Up Vert Vel: 6.50 m/s Conv Inhibition (B-): 7340.51 J/kg Cap Strength: 2.80 C Lift Cond Lev (LCL): 829.53 mb = 1776.70 m = 5829.00 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 103 at 6 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 ---------------------------------------------------------- 0 936 757 250 3 2.8 1.0 | 272 8 8.4 -0.3 1 925 872 90 1 -1.0 0.0 | 286 5 4.6 -1.3 2 850 1579 80 11 -10.8 -1.9 | 59 6 -5.3 -3.2 3 700 3154 15 1 -0.3 -1.0 | 293 6 5.3 -2.3 4 500 5740 75 13 -12.6 -3.4 | 56 8 -7.0 -4.7 5 400 7350 65 13 -11.8 -5.5 | 42 9 -6.2 -6.8 6 300 9300 55 9 -7.4 -5.2 | 16 7 -1.8 -6.5 7 250 10470 50 15 -11.5 -9.6 | 28 12 -5.9 -10.9 8 215 11419 35 11 -6.3 -9.0 | 4 10 -0.7 -10.3 9 200 11870 65 17 -15.4 -7.2 | 49 13 -9.8 -8.5 10 150 13670 355 15 1.3 -14.9 | 337 18 6.9 -16.2 11 100 16220 355 15 1.3 -14.9 | 337 18 6.9 -16.2 Wind Parameters Mean winds (0-6000m): 73.2 at 7.6 knts Storm direction: 103.2 at 5.7 knts Shear (0-3000m) pos: 0.4 neg: 0.7 tot: 1.1 10-3/s Storm rel Dir Shear (0-3000m): 49.3 deg Storm rel helicity (0-3000m) pos: 10.4 neg: -18.1 tot: -7.7 m^2/s^2 ave: -2.6 10^-3 m/s^2 rel: -0.07 Storm rel vorticity (0-3000m) horiz: 5.0 stream: -0.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 8.13 Bulk Shear: 2.60 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 87 3 304 3| 0.0 9.6 9.6| 4.3 0.0 4.3 8.6 0.55| 9.8 5.4 1000 80 6 16 3| 0.0 6.6 6.6| 6.0 -2.5 3.5 3.5 0.36| 8.0 2.9 1500 74 7 21 3| 0.0 3.3 3.3| 6.0 -8.8 -2.8 -1.9 0.06| 6.8 0.4 2000 73 7 12 3| 0.0 1.6 1.6| 6.0 -14.2 -8.2 -4.1 -0.10| 6.1 -0.6 2500 77 6 359 3| 0.0 0.8 0.8| 6.7 -18.1 -11.4 -4.6 -0.17| 5.5 -0.9 3000 73 5 348 3| 0.4 0.7 1.1| 10.4 -18.1 -7.7 -2.6 -0.07| 5.0 -0.4 4000 67 5 350 3| 0.9 0.5 1.5| 19.0 -18.1 0.9 0.2 0.09| 4.4 0.4 5000 74 6 12 3| 1.3 0.4 1.7| 30.6 -18.1 12.5 2.5 0.22| 4.2 0.9 6000 73 8 26 4| 1.1 0.4 1.5| 30.6 -21.1 9.4 1.6 0.18| 3.6 0.7 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20250429.06.gif