UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121818.upa.cvt Date: 1800Z 18 DEC 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 18 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 183 SFC 934 757 4.6 2.1 84 2.5 3.4 250 1 283.2 284.0 279.8 296.5 4.76 2 925 835 8.4 3.7 72 4.7 6.0 115 3 287.9 288.8 282.7 303.2 5.39 3 850 1532 7.6 -4.4 42 12.0 2.3 170 5 294.1 294.7 282.9 303.7 3.24 4 700 3099 -2.9 -19.9 26 17.0 -7.8 245 15 299.3 299.5 282.5 302.9 1.12 5 500 5680 -19.7 -38.7 17 19.0 -22.3 185 9 309.0 309.1 285.3 310.0 0.27 6 400 7300 -30.5 -55.5 7 25.0 -32.1 45 15 315.3 315.4 287.3 315.5 0.05 7 300 9280 -45.5 -55.5 32 10.0 -45.9 35 35 321.2 321.2 289.2 321.5 0.07 8 250 10470 -54.7 -66.7 21 12.0 -54.9 35 35 324.7 324.7 290.2 324.8 0.02 9 200 11870 -63.5 -71.5 33 8.0 -63.6 345 31 332.2 332.2 292.3 332.3 0.01 10 171 12830 -65.7 -77.7 17 12.0 -65.8 345 19 343.8 343.8 295.2 343.8 0.01 11 150 13640 -59.9 -83.9 3 24.0 -60.1 40 3 366.9 366.9 300.0 366.9 0.00 12 100 16140 -64.1 -86.1 3 22.0 -64.3 260 19 403.9 403.9 305.7 403.9 0.00 TRP 171 12830 -65.7 -77.7 17 12.0 -65.8 345 19 343.8 343.8 295.2 343.8 0.01 WND Sounding variables and indices 1000-500 mb thick: 5497.00 m Freezing level: 741.43 mb = 2666.21 m = 8747.30 ft Wetbulb zero: 815.89 mb = 1862.53 m = 6110.59 ft Precipitable water: 0.34 inches Sfc-500 mean rel hum: 30.93 % Est. max temperature: 17.42 C = 63.35 F Sfc-Lift cond lev (LCL): 898.65 mb = 1073.23 m = 3521.05 ft T: 8.13 C 700-500 lapse rate: 6.51 C/km ThetaE index: 0.88 C Layer 700.0- 500.0 mb Conv cond level (CCL): 685.94 mb = 3254.67 m = 10677.92 ft Mean mixing ratio: 4.18 g/kg Conv temperature: 20.94 C = 69.68 F Cap Strength: 5.04 C Lifted Index: 7.06 C Risk: None Lifted Index @300 mb: 12.90 C Lifted Index @700 mb: 4.70 C Showalter Index: 6.71 C Risk: None Total Totals Index: 42.60 C Risk: None Vertical Totals Index: 27.30 C Cross Totals Index: 15.30 C K Index: 5.90 Risk: None Sweat Index: 19.00 Risk: None Energy Index: 1.34 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 18.06 J/kg Max Up Vert Vel: 6.01 m/s Conv Inhibition (B-): 10294.38 J/kg Cap Strength: 6.89 C Lift Cond Lev (LCL): 777.74 mb = 2249.01 m = 7378.55 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 240 at 8 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 ---------------------------------------------------------- 0 934 757 250 1 0.9 0.3 | 58 7 -5.7 -3.6 1 925 835 115 3 -2.7 1.3 | 74 10 -9.4 -2.6 2 850 1532 170 5 -0.9 4.9 | 98 8 -7.5 1.0 3 700 3099 245 15 13.6 6.3 | 251 7 6.9 2.4 4 500 5680 185 9 0.8 9.0 | 131 8 -5.9 5.1 5 400 7300 45 15 -10.6 -10.6 | 50 23 -17.3 -14.5 6 300 9280 35 35 -20.1 -28.7 | 39 42 -26.7 -32.6 7 250 10470 35 35 -20.1 -28.7 | 39 42 -26.7 -32.6 8 200 11870 345 31 8.0 -29.9 | 358 34 1.4 -33.8 9 171 12830 345 19 4.9 -18.4 | 4 22 -1.7 -22.3 10 150 13640 40 3 -1.9 -2.3 | 54 11 -8.6 -6.2 11 100 16140 260 19 18.7 3.3 | 273 12 12.0 -0.6 Wind Parameters Mean winds (0-6000m): 209.7 at 10.3 knts Storm direction: 239.7 at 7.7 knts Shear (0-3000m) pos: 2.6 neg: 1.3 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 158.7 deg Storm rel helicity (0-3000m) pos: 37.8 neg: -6.1 tot: 31.7 m^2/s^2 ave: 10.6 10^-3 m/s^2 rel: 0.64 Storm rel vorticity (0-3000m) horiz: 4.8 stream: 3.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.37 Bulk Shear: 13.20 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 ------------------------------------------------------------------------------- 500 134 3 80 9| 0.0 4.7 4.7| 10.3 0.0 10.3 20.6 0.74| 6.3 4.7 1000 158 4 90 8| 1.9 2.3 4.2| 16.7 0.0 16.7 16.7 0.78| 5.1 3.9 1500 178 5 103 7| 2.8 1.6 4.3| 23.9 0.0 23.9 16.0 0.83| 5.0 4.1 2000 201 7 121 5| 3.3 1.2 4.5| 31.7 0.0 31.7 15.8 0.88| 5.2 4.5 2500 221 8 155 3| 3.2 0.9 4.1| 37.8 -1.1 36.7 14.7 0.83| 5.1 4.3 3000 226 9 179 3| 2.6 1.3 3.9| 37.8 -6.1 31.7 10.6 0.64| 4.8 3.1 4000 224 10 187 3| 2.0 1.6 3.6| 37.8 -14.6 23.1 5.8 0.37| 4.3 1.6 5000 221 10 180 4| 1.6 1.8 3.4| 37.8 -23.1 14.6 2.9 0.20| 4.0 0.8 6000 210 10 163 5| 1.3 2.5 3.8| 37.8 -75.4 -37.6 -6.3 -0.08| 4.8 -0.4 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20251218.18.gif