UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041518.upa.cvt Date: 1800Z 15 APR 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 15 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 0 1 925 674 40 5 SFC 916 757 17.4 8.4 55 9.0 12.1 40 5 297.9 299.3 288.8 320.1 7.57 3 850 1390 11.8 5.8 67 6.0 8.4 340 3 298.5 299.7 288.3 318.6 6.81 4 700 2977 -0.5 -1.5 93 1.0 -1.0 235 17 301.9 302.8 287.6 316.7 4.90 5 500 5590 -17.7 -39.7 13 22.0 -20.8 245 33 311.5 311.5 286.2 312.3 0.24 6 400 7210 -31.7 -50.7 14 19.0 -33.0 225 36 313.8 313.8 286.8 314.1 0.09 7 300 9170 -47.1 -55.1 40 8.0 -47.4 170 50 319.0 319.0 288.5 319.2 0.07 8 267 9934 -53.3 -63.3 29 10.0 -53.5 185 42 320.7 320.7 289.0 320.8 0.03 9 250 10360 -52.1 -69.1 11 17.0 -52.4 185 40 328.6 328.6 291.3 328.7 0.01 10 200 11790 -54.1 -77.1 4 23.0 -54.4 175 36 347.1 347.1 296.0 347.1 0.01 11 150 13660 -53.1 -84.1 1 31.0 -53.5 200 42 378.6 378.6 302.0 378.6 0.00 12 100 16240 -57.5 -86.5 1 29.0 -57.9 210 23 416.6 416.6 307.3 416.6 0.00 TRP 267 9934 -53.3 -63.3 29 10.0 -53.5 185 42 320.7 320.7 289.0 320.8 0.03 WND Sounding variables and indices 1000-500 mb thick: 5590.00 m Freezing level: 706.10 mb = 2912.49 m = 9555.29 ft Wetbulb zero: 715.62 mb = 2796.60 m = 9175.07 ft Precipitable water: 0.75 inches Sfc-500 mean rel hum: 62.51 % Est. max temperature: 19.82 C = 67.67 F Sfc-Lift cond lev (LCL): 800.71 mb = 1878.29 m = 6162.31 ft T: 8.02 C 700-500 lapse rate: 6.58 C/km ThetaE index: 7.77 C Layer 850.0- 400.0 mb Conv cond level (CCL): 757.13 mb = 2335.74 m = 7663.09 ft Mean mixing ratio: 6.98 g/kg Conv temperature: 20.02 C = 68.03 F Cap Strength: 1.50 C Lifted Index: -0.73 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.46 C Lifted Index @700 mb: -0.52 C Showalter Index: -0.49 C Risk: Thunderstorms probable Total Totals Index: 53.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 29.50 C Cross Totals Index: 23.50 C K Index: 34.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 188.60 Risk: None Energy Index: -1.22 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 246.83 J/kg Max Up Vert Vel: 22.22 m/s Conv Inhibition (B-): 35.87 J/kg Cap Strength: 1.50 C Lift Cond Lev (LCL): 780.81 mb = 2084.00 m = 6837.19 ft Lev Free Conv (LFC): 715.81 mb = 2794.44 m = 9168.01 ft Equ Level (EL): 315.81 mb = 8820.10 m = 28936.98 ft B at Equ Level: 246.76 J/kg Max Parcel Lev (MPL): 235.81 mb = 10734.48 m = 35217.69 ft Wind level data Storm motion: 271 at 16 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 ---------------------------------------------------------- 0 916 757 40 5 -3.2 -3.8 | 80 19 -18.9 -3.5 1 850 1390 340 3 1.0 -2.8 | 80 15 -14.7 -2.5 2 700 2977 235 17 13.9 9.8 | 170 10 -1.8 10.1 3 500 5590 245 33 29.9 13.9 | 225 20 14.2 14.3 4 400 7210 225 36 25.5 25.5 | 201 28 9.7 25.8 5 300 9170 170 50 -8.7 49.2 | 154 55 -24.4 49.6 6 267 9934 185 42 3.7 41.8 | 164 44 -12.1 42.2 7 250 10360 185 40 3.5 39.8 | 163 42 -12.2 40.2 8 200 11790 175 36 -3.1 35.9 | 152 41 -18.9 36.2 9 150 13660 200 42 14.4 39.5 | 178 40 -1.4 39.8 10 100 16240 210 23 11.5 19.9 | 168 21 -4.2 20.3 Wind Parameters Mean winds (0-6000m): 241.3 at 21.0 knts Storm direction: 271.3 at 15.7 knts Shear (0-3000m) pos: 0.5 neg: 4.0 tot: 4.6 10-3/s Storm rel Dir Shear (0-3000m): 113.4 deg Storm rel helicity (0-3000m) pos: 24.4 neg: -14.1 tot: 10.4 m^2/s^2 ave: 3.5 10^-3 m/s^2 rel: 0.27 Storm rel vorticity (0-3000m) horiz: 5.6 stream: 1.5 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 3.11 Bulk Shear: 79.45 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 25 4 79 18| 0.0 3.8 3.8| 1.3 -3.0 -1.7 -3.5 -0.08| 3.9 -0.3 1000 356 4 76 16| 0.0 3.9 3.9| 2.6 -11.6 -8.9 -8.9 -0.28| 4.2 -1.2 1500 316 6 73 12| 0.0 4.7 4.7| 3.5 -14.1 -10.6 -7.1 -0.18| 5.1 -0.9 2000 272 7 90 8| 0.0 5.0 5.0| 10.0 -14.1 -4.1 -2.0 0.16| 6.1 0.9 2500 248 9 118 8| 0.0 4.8 4.8| 16.0 -14.1 1.9 0.8 0.21| 6.1 1.2 3000 244 11 132 8| 0.5 4.0 4.6| 24.4 -14.1 10.4 3.5 0.27| 5.6 1.5 4000 242 15 159 8| 1.2 3.0 4.2| 42.7 -14.1 28.7 7.2 0.35| 5.0 1.8 5000 243 18 183 9| 1.3 2.7 4.0| 59.4 -18.8 40.6 8.1 0.36| 4.7 1.7 6000 241 21 194 11| 1.1 2.5 3.6| 59.4 -56.0 3.4 0.6 0.19| 4.6 0.9 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20250415.18.gif