UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121812.upa.cvt Date: 1200Z 18 DEC 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1200Z 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 198 SFC 936 757 8.2 3.2 71 5.0 5.7 60 1 286.7 287.6 281.9 301.3 5.14 2 925 850 7.4 2.4 71 5.0 4.9 135 3 286.9 287.7 281.7 300.8 4.92 3 850 1546 5.2 -2.8 56 8.0 1.7 260 7 291.6 292.2 282.3 302.3 3.66 4 700 3103 -3.7 -19.7 28 16.0 -8.3 245 17 298.4 298.6 282.2 302.0 1.14 5 500 5680 -20.5 -31.5 37 11.0 -22.4 250 7 308.0 308.1 285.3 309.9 0.55 6 400 7290 -33.1 -48.1 21 15.0 -34.1 115 5 312.0 312.0 286.2 312.4 0.12 7 300 9260 -44.7 -57.7 22 13.0 -45.2 25 46 322.4 322.4 289.5 322.6 0.05 8 250 10450 -53.9 -67.9 16 14.0 -54.1 25 42 325.9 325.9 290.6 326.0 0.02 9 200 11850 -61.9 -72.9 22 11.0 -62.0 45 21 334.7 334.7 293.0 334.8 0.01 10 195 12007 -63.1 -75.1 18 12.0 -63.2 30 13 335.3 335.3 293.2 335.3 0.01 11 150 13630 -62.5 -84.5 4 22.0 -62.6 300 13 362.4 362.4 299.2 362.4 0.00 12 100 16130 -63.3 -87.3 2 24.0 -63.5 235 15 405.4 405.4 305.9 405.4 0.00 TRP 195 12007 -63.1 -75.1 18 12.0 -63.2 30 13 335.3 335.3 293.2 335.3 0.01 WND Sounding variables and indices 1000-500 mb thick: 5482.00 m Freezing level: 762.36 mb = 2455.71 m = 8056.69 ft Wetbulb zero: 825.00 mb = 1785.43 m = 5857.65 ft Precipitable water: 0.38 inches Sfc-500 mean rel hum: 40.15 % Est. max temperature: 15.69 C = 60.23 F Sfc-Lift cond lev (LCL): 867.15 mb = 1381.55 m = 4532.58 ft T: 5.72 C 700-500 lapse rate: 6.52 C/km ThetaE index: 0.46 C Layer 925.0- 850.0 mb Conv cond level (CCL): 706.01 mb = 3034.49 m = 9955.55 ft Mean mixing ratio: 4.25 g/kg Conv temperature: 19.36 C = 66.84 F Cap Strength: 4.83 C Lifted Index: 7.37 C Risk: None Lifted Index @300 mb: 14.81 C Lifted Index @700 mb: 4.83 C Showalter Index: 6.87 C Risk: None Total Totals Index: 43.40 C Risk: None Vertical Totals Index: 25.70 C Cross Totals Index: 17.70 C K Index: 6.90 Risk: None Sweat Index: 21.00 Risk: None Energy Index: 1.61 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 12.02 J/kg Max Up Vert Vel: 4.90 m/s Conv Inhibition (B-): 11718.47 J/kg Cap Strength: 7.36 C Lift Cond Lev (LCL): 800.48 mb = 2027.35 m = 6651.32 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 274 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 ---------------------------------------------------------- 0 936 757 60 1 -0.9 -0.5 | 90 8 -8.4 0.0 1 925 850 135 3 -2.1 2.1 | 105 10 -9.6 2.6 2 850 1546 260 7 6.9 1.2 | 161 2 -0.6 1.7 3 700 3103 245 17 15.4 7.2 | 226 11 7.9 7.7 4 500 5680 250 7 6.6 2.4 | 162 3 -0.9 2.9 5 400 7290 115 5 -4.5 2.1 | 102 12 -12.0 2.6 6 300 9260 25 46 -19.4 -41.7 | 33 49 -26.9 -41.2 7 250 10450 25 42 -17.7 -38.1 | 34 45 -25.2 -37.6 8 200 11850 45 21 -14.8 -14.8 | 57 27 -22.3 -14.3 9 195 12007 30 13 -6.5 -11.3 | 52 18 -14.0 -10.8 10 150 13630 300 13 11.3 -6.5 | 328 7 3.8 -6.0 11 100 16130 235 15 12.3 8.6 | 208 10 4.8 9.1 Wind Parameters Mean winds (0-6000m): 243.9 at 10.0 knts Storm direction: 273.9 at 7.5 knts Shear (0-3000m) pos: 1.3 neg: 1.4 tot: 2.7 10-3/s Storm rel Dir Shear (0-3000m): 132.2 deg Storm rel helicity (0-3000m) pos: 22.8 neg: -1.8 tot: 21.0 m^2/s^2 ave: 7.0 10^-3 m/s^2 rel: 0.44 Storm rel vorticity (0-3000m) horiz: 4.7 stream: 2.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.07 Bulk Shear: 11.18 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 ------------------------------------------------------------------------------- 500 177 4 119 9| 6.4 0.0 6.4| 17.4 0.0 17.4 34.8 0.84| 9.0 7.5 1000 243 5 136 4| 4.8 0.0 4.8| 20.8 0.0 20.8 20.8 0.67| 8.2 5.5 1500 250 7 159 3| 3.2 1.1 4.3| 22.1 0.0 22.1 14.8 0.63| 6.6 4.2 2000 249 8 186 3| 2.4 1.7 4.1| 22.8 0.0 22.8 11.4 0.55| 5.8 3.2 2500 247 10 201 5| 1.9 1.7 3.7| 22.8 -0.6 22.2 8.9 0.49| 5.2 2.5 3000 247 11 207 5| 1.3 1.4 2.7| 22.8 -1.8 21.0 7.0 0.44| 4.7 2.0 4000 247 11 210 6| 0.5 1.1 1.6| 22.8 -4.6 18.2 4.6 0.33| 4.0 1.3 5000 247 11 207 5| 0.3 0.7 1.0| 22.8 -7.6 15.2 3.0 0.20| 3.6 0.7 6000 244 10 197 5| 0.2 0.7 0.9| 22.8 -19.5 3.3 0.5 0.04| 3.8 0.2 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20251218.12.gif