UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120418.upa.cvt Date: 1800Z 4 DEC 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 4 DEC 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 61 1 925 704 70 1 SFC 919 757 -1.9 -2.0 99 0.1 -1.9 70 1 277.9 278.5 275.5 287.8 3.59 3 850 1383 4.6 -6.4 45 11.0 0.1 240 5 291.0 291.5 281.0 299.2 2.78 4 700 2930 -6.9 -8.1 91 1.2 -7.4 255 5 294.8 295.4 282.9 303.7 2.96 5 500 5480 -23.1 -26.0 77 2.9 -23.7 170 21 304.9 305.0 284.5 307.9 0.92 6 400 7070 -34.7 -37.6 75 2.9 -35.0 185 35 309.9 310.0 285.8 311.2 0.38 7 300 9010 -51.5 -55.4 63 3.9 -51.6 170 48 312.8 312.8 286.4 313.0 0.07 8 250 10170 -59.7 -64.1 56 4.4 -59.7 180 77 317.3 317.3 287.9 317.4 0.03 9 226 10792 -63.4 -67.9 54 4.5 -63.4 180 87 320.9 320.9 289.0 321.0 0.02 10 200 11530 -67.9 -72.6 51 4.7 -67.9 185 50 325.2 325.2 290.3 325.3 0.01 11 197 11622 -68.9 -74.9 42 6.0 -68.9 175 44 325.0 325.0 290.3 325.1 0.01 12 150 13320 -58.9 -83.9 3 25.0 -59.1 180 21 368.6 368.6 300.3 368.6 0.00 13 100 15860 -59.3 -86.3 2 27.0 -59.6 225 27 413.2 413.2 306.9 413.2 0.00 TRP 197 11622 -68.9 -74.9 42 6.0 -68.9 175 44 325.0 325.0 290.3 325.1 0.01 WND 226 10792 -63.4 -67.9 54 4.5 -63.4 180 87 320.9 320.9 289.0 321.0 0.02 Sounding variables and indices 1000-500 mb thick: 5419.00 m Freezing level: Surface below freezing Freezing level: 898.83 mb = 939.98 m = 3083.90 ft Freezing level: 790.00 mb = 2001.80 m = 6567.51 ft Wetbulb zero: Below ground Precipitable water: 0.45 inches Sfc-500 mean rel hum: 77.38 % Est. max temperature: 12.88 C = 55.18 F Sfc-Lift cond lev (LCL): 917.37 mb = 771.24 m = 2530.29 ft T: -1.75 C 700-500 lapse rate: 6.35 C/km Conv cond level (CCL): 684.18 mb = 3103.24 m = 10181.12 ft Mean mixing ratio: 3.06 g/kg Conv temperature: 15.35 C = 59.63 F Cap Strength: 5.71 C Lifted Index: 9.05 C Risk: None Lifted Index @300 mb: 12.29 C Lifted Index @700 mb: 5.21 C Showalter Index: 6.41 C Risk: None Total Totals Index: 44.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.70 C Cross Totals Index: 16.70 C K Index: 20.10 Risk: 20-40 % chance of thunderstorms Sweat Index: 31.00 Risk: None Energy Index: 1.79 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 49.80 J/kg Max Up Vert Vel: 9.98 m/s Conv Inhibition (B-): 11615.30 J/kg Cap Strength: 8.82 C Lift Cond Lev (LCL): 778.04 mb = 2087.85 m = 6849.82 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 217 at 10 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 ---------------------------------------------------------- 0 919 757 70 1 -0.9 -0.3 | 39 11 -6.8 -8.2 1 850 1383 240 5 4.3 2.5 | 16 6 -1.5 -5.4 2 700 2930 255 5 4.8 1.3 | 9 7 -1.0 -6.6 3 500 5480 170 21 -3.6 20.7 | 143 16 -9.5 12.8 4 400 7070 185 35 3.1 34.9 | 174 27 -2.8 27.0 5 300 9010 170 48 -8.3 47.3 | 160 42 -14.2 39.4 6 250 10170 180 77 0.0 77.0 | 175 69 -5.8 69.1 7 226 10792 180 87 0.0 87.0 | 176 79 -5.8 79.1 8 200 11530 185 50 4.4 49.8 | 178 42 -1.5 41.9 9 197 11622 175 44 -3.8 43.8 | 165 37 -9.7 36.0 10 150 13320 180 21 0.0 21.0 | 156 14 -5.8 13.1 11 100 15860 225 27 19.1 19.1 | 230 17 13.3 11.2 Wind Parameters Mean winds (0-6000m): 186.5 at 13.1 knts Storm direction: 216.5 at 9.8 knts Shear (0-3000m) pos: 1.0 neg: 1.0 tot: 2.1 10-3/s Storm rel Dir Shear (0-3000m): -99.0 deg Storm rel helicity (0-3000m) pos: 6.9 neg: -11.5 tot: -4.6 m^2/s^2 ave: -1.5 10^-3 m/s^2 rel: -0.36 Storm rel vorticity (0-3000m) horiz: 3.0 stream: -1.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 2.59 Bulk Shear: 19.20 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 ------------------------------------------------------------------------------- 500 248 3 26 8| 5.1 0.0 5.1| 6.9 -1.8 5.1 10.2 0.21| 7.1 1.5 1000 240 4 23 7| 3.1 0.0 3.1| 6.9 -6.1 0.8 0.8 -0.15| 5.2 -0.8 1500 243 4 20 6| 2.1 0.0 2.1| 6.9 -6.5 0.4 0.3 -0.17| 3.6 -0.6 2000 245 4 17 6| 1.5 0.0 1.5| 6.9 -6.9 0.1 0.0 -0.18| 2.8 -0.5 2500 247 5 15 6| 1.2 0.5 1.7| 6.9 -9.2 -2.3 -0.9 -0.26| 2.7 -0.7 3000 242 5 12 6| 1.0 1.0 2.1| 6.9 -11.5 -4.6 -1.5 -0.36| 3.0 -1.1 4000 220 7 27 3| 0.8 1.9 2.6| 6.9 -18.0 -11.1 -2.8 -0.47| 3.5 -1.7 5000 193 10 116 4| 0.6 2.4 3.0| 14.7 -33.2 -18.5 -3.7 -0.41| 4.0 -1.6 6000 187 13 140 7| 1.3 2.0 3.2| 53.9 -33.2 20.7 3.4 -0.18| 4.2 -0.8 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20251204.18.gif