UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120318.upa.cvt Date: 1800Z 3 DEC 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 3 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 106 1 925 747 50 1 SFC 924 757 -1.9 -2.0 99 0.1 -1.9 50 1 277.5 278.1 275.2 287.3 3.57 3 850 1429 3.6 -7.4 44 11.0 -0.7 70 1 289.9 290.4 280.3 297.5 2.58 4 700 2970 -8.3 -9.9 88 1.6 -8.9 250 11 293.3 293.8 281.7 301.0 2.57 5 500 5520 -22.3 -30.3 48 8.0 -23.7 255 11 305.9 306.0 284.5 307.9 0.62 6 400 7120 -35.9 -50.9 20 15.0 -36.7 270 31 308.3 308.3 284.8 308.7 0.09 7 300 9050 -52.1 -60.1 38 8.0 -52.2 240 40 311.9 311.9 286.1 312.1 0.04 8 250 10210 -60.7 -65.7 52 5.0 -60.7 210 38 315.8 315.8 287.4 315.9 0.02 9 234 10617 -62.9 -69.9 38 7.0 -63.0 220 50 318.5 318.5 288.3 318.6 0.01 10 200 11580 -61.9 -76.9 12 15.0 -62.0 225 35 334.7 334.7 293.0 334.8 0.01 11 150 13390 -57.1 -83.1 2 26.0 -57.4 210 13 371.7 371.7 300.9 371.7 0.00 12 100 15930 -61.1 -86.1 2 25.0 -61.4 205 21 409.7 409.7 306.5 409.7 0.00 TRP 234 10617 -62.9 -69.9 38 7.0 -63.0 220 50 318.5 318.5 288.3 318.6 0.01 WND Sounding variables and indices 1000-500 mb thick: 5414.00 m Freezing level: Surface below freezing Freezing level: 898.44 mb = 989.15 m = 3245.19 ft Freezing level: 804.62 mb = 1895.19 m = 6217.72 ft Wetbulb zero: Below ground Precipitable water: 0.39 inches Sfc-500 mean rel hum: 68.09 % Est. max temperature: 11.94 C = 53.50 F Sfc-Lift cond lev (LCL): 922.36 mb = 771.30 m = 2530.47 ft T: -1.78 C 700-500 lapse rate: 5.49 C/km ThetaE index: 0.00 C Layer 924.0- -4.1 mb Conv cond level (CCL): 701.03 mb = 2958.38 m = 9705.86 ft Mean mixing ratio: 2.94 g/kg Conv temperature: 13.56 C = 56.41 F Cap Strength: 5.51 C Lifted Index: 11.02 C Risk: None Lifted Index @300 mb: 12.80 C Lifted Index @700 mb: 4.81 C Showalter Index: 8.38 C Risk: None Total Totals Index: 40.80 C Risk: None Vertical Totals Index: 25.90 C Cross Totals Index: 14.90 C K Index: 16.90 Risk: < 20 % chance of thunderstorms Sweat Index: 13.00 Risk: None Energy Index: 2.15 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 42.79 J/kg Max Up Vert Vel: 9.25 m/s Conv Inhibition (B-): 12927.86 J/kg Cap Strength: 10.82 C Lift Cond Lev (LCL): 785.33 mb = 2057.09 m = 6748.89 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 287 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 ---------------------------------------------------------- 0 924 757 50 1 -0.8 -0.6 | 101 8 -8.2 1.6 1 850 1429 70 1 -0.9 -0.3 | 103 9 -8.4 1.9 2 700 2970 250 11 10.3 3.8 | 206 7 2.9 6.0 3 500 5520 255 11 10.6 2.8 | 212 6 3.2 5.1 4 400 7120 270 31 31.0 -0.0 | 265 24 23.6 2.2 5 300 9050 240 40 34.6 20.0 | 231 35 27.2 22.2 6 250 10210 210 38 19.0 32.9 | 198 37 11.6 35.1 7 234 10617 220 50 32.1 38.3 | 211 47 24.7 40.5 8 200 11580 225 35 24.7 24.7 | 213 32 17.3 27.0 9 150 13390 210 13 6.5 11.3 | 176 14 -0.9 13.5 10 100 15930 205 21 8.9 19.0 | 184 21 1.4 21.3 Wind Parameters Mean winds (0-6000m): 256.7 at 10.4 knts Storm direction: 286.7 at 7.8 knts Shear (0-3000m) pos: 2.0 neg: 0.0 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): 106.8 deg Storm rel helicity (0-3000m) pos: 52.2 neg: -0.0 tot: 52.2 m^2/s^2 ave: 17.4 10^-3 m/s^2 rel: 0.84 Storm rel vorticity (0-3000m) horiz: 3.9 stream: 3.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.53 Bulk Shear: 16.89 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 57 1 102 8| 0.3 0.0 0.3| 0.4 0.0 0.4 0.8 0.72| 0.3 0.2 1000 79 1 103 9| 1.4 0.0 1.4| 2.8 -0.0 2.8 2.8 0.37| 1.5 0.5 1500 143 2 115 10| 2.4 0.0 2.4| 20.2 -0.0 20.2 13.5 0.75| 3.0 2.3 2000 220 4 136 7| 2.7 0.0 2.7| 43.6 -0.0 43.5 21.8 0.84| 4.5 3.8 2500 251 5 147 5| 2.5 0.0 2.5| 51.9 -0.0 51.9 20.8 0.84| 4.6 3.9 3000 251 6 159 5| 2.0 0.0 2.0| 52.2 -0.0 52.2 17.4 0.84| 3.9 3.2 4000 252 7 175 5| 1.5 0.0 1.5| 52.6 -0.0 52.6 13.2 0.84| 2.9 2.5 5000 252 8 185 5| 1.5 0.0 1.5| 56.8 -0.0 56.8 11.4 0.82| 2.7 2.2 6000 257 10 210 5| 2.3 0.0 2.3| 79.6 -0.0 79.6 13.3 0.71| 3.3 2.4 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20251203.18.gif