UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102018.upa.cvt Date: 1800Z 20 OCT 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 20 OCT 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 31 1 925 698 260 3 SFC 919 757 12.6 7.6 72 5.0 9.7 260 3 292.7 294.0 286.5 313.2 7.14 3 850 1406 10.2 2.2 58 8.0 6.1 225 15 296.8 297.8 286.2 312.4 5.28 4 700 2984 -1.1 -1.1 100 0.0 -1.1 250 19 301.3 302.2 287.6 316.4 5.05 5 500 5600 -15.9 -16.9 92 1.0 -16.2 215 21 313.7 314.0 288.8 320.3 2.04 6 400 7240 -27.5 -28.9 88 1.4 -27.8 215 33 319.2 319.4 289.5 322.3 0.88 7 300 9240 -44.3 -50.3 51 6.0 -44.6 205 33 322.9 322.9 289.8 323.4 0.13 8 250 10430 -55.5 -58.5 69 3.0 -55.6 215 40 323.6 323.6 289.9 323.8 0.06 9 217 11322 -62.3 -66.2 60 3.9 -62.3 225 62 326.4 326.4 290.7 326.5 0.02 10 216 11351 -62.5 -66.4 59 3.9 -62.6 230 62 326.5 326.5 290.7 326.6 0.02 11 200 11830 -60.1 -76.1 11 16.0 -60.2 220 31 337.6 337.6 293.7 337.6 0.01 12 150 13630 -59.1 -81.1 4 22.0 -59.3 240 31 368.3 368.3 300.2 368.3 0.00 13 100 16170 -60.3 -85.3 2 25.0 -60.6 265 23 411.2 411.2 306.7 411.2 0.00 TRP 216 11351 -62.5 -66.4 59 3.9 -62.6 230 62 326.5 326.5 290.7 326.6 0.02 WND 217 11322 -62.3 -66.2 60 3.9 -62.3 225 62 326.4 326.4 290.7 326.5 0.02 Sounding variables and indices 1000-500 mb thick: 5569.00 m Freezing level: 714.60 mb = 2830.39 m = 9285.94 ft Wetbulb zero: 722.95 mb = 2721.85 m = 8929.86 ft Precipitable water: 0.84 inches Sfc-500 mean rel hum: 86.47 % Est. max temperature: 18.88 C = 65.99 F Sfc-Lift cond lev (LCL): 852.20 mb = 1384.51 m = 4542.29 ft T: 10.28 C 700-500 lapse rate: 5.66 C/km ThetaE index: 0.83 C Layer 850.0- 700.0 mb Conv cond level (CCL): 734.42 mb = 2593.83 m = 8509.84 ft Mean mixing ratio: 5.90 g/kg Conv temperature: 19.89 C = 67.81 F Cap Strength: 2.92 C Lifted Index: 4.65 C Risk: None Lifted Index @300 mb: 7.42 C Lifted Index @700 mb: 1.63 C Showalter Index: 4.94 C Risk: None Total Totals Index: 44.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.10 C Cross Totals Index: 18.10 C K Index: 28.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 77.40 Risk: None Energy Index: 1.58 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.81 J/kg Max Up Vert Vel: 5.97 m/s Conv Inhibition (B-): 8539.28 J/kg Cap Strength: 4.52 C Lift Cond Lev (LCL): 784.54 mb = 2057.32 m = 6749.65 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 259 at 14 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 ---------------------------------------------------------- 0 919 757 260 3 3.0 0.5 | 78 11 -11.1 -2.3 1 850 1406 225 15 10.6 10.6 | 156 9 -3.5 7.8 2 700 2984 250 19 17.9 6.5 | 226 5 3.8 3.7 3 500 5600 215 21 12.0 17.2 | 172 15 -2.0 14.4 4 400 7240 215 33 18.9 27.0 | 191 25 4.8 24.2 5 300 9240 205 33 13.9 29.9 | 180 27 -0.1 27.1 6 250 10430 215 40 22.9 32.8 | 196 31 8.9 30.0 7 217 11322 225 62 43.8 43.8 | 216 51 29.8 41.0 8 216 11351 230 62 47.5 39.9 | 222 50 33.4 37.1 9 200 11830 220 31 19.9 23.7 | 196 22 5.8 20.9 10 150 13630 240 31 26.8 15.5 | 225 18 12.8 12.7 11 100 16170 265 23 22.9 2.0 | 275 9 8.8 -0.8 Wind Parameters Mean winds (0-6000m): 228.8 at 19.2 knts Storm direction: 258.8 at 14.4 knts Shear (0-3000m) pos: 0.9 neg: 2.6 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 123.2 deg Storm rel helicity (0-3000m) pos: 29.6 neg: -4.2 tot: 25.4 m^2/s^2 ave: 8.5 10^-3 m/s^2 rel: 0.58 Storm rel vorticity (0-3000m) horiz: 4.3 stream: 2.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.00 Bulk Shear: 17.81 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 ------------------------------------------------------------------------------- 500 232 8 103 8| 0.0 9.9 9.9| 12.5 0.0 12.5 25.0 0.69| 10.3 7.1 1000 229 11 129 7| 0.0 6.9 6.9| 20.0 0.0 20.0 20.0 0.72| 7.6 5.5 1500 232 13 143 7| 0.9 4.6 5.5| 24.1 0.0 24.1 16.0 0.74| 6.0 4.4 2000 236 14 156 6| 1.4 3.4 4.8| 28.0 0.0 28.0 14.0 0.77| 5.2 4.0 2500 239 15 167 5| 1.1 2.9 4.0| 29.6 -1.2 28.4 11.4 0.71| 4.6 3.3 3000 240 16 175 5| 0.9 2.6 3.5| 29.6 -4.2 25.4 8.5 0.58| 4.3 2.4 4000 238 17 182 6| 0.7 2.3 3.0| 29.6 -11.7 18.0 4.5 0.38| 3.8 1.5 5000 233 18 181 8| 0.6 2.2 2.7| 32.1 -19.8 12.4 2.5 0.27| 3.6 1.0 6000 229 19 182 10| 0.5 2.4 2.9| 51.4 -19.8 31.6 5.3 0.32| 3.6 1.2 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20251020.18.gif