UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102718.upa.cvt Date: 1800Z 27 OCT 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 27 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 69 1 925 717 280 17 SFC 921 757 5.6 4.2 91 1.4 4.9 280 17 285.4 286.4 281.8 301.1 5.61 3 850 1405 1.2 1.2 100 0.0 1.2 265 40 287.4 288.3 281.9 301.4 4.91 4 700 2939 -8.9 -11.4 82 2.5 -9.7 295 50 292.6 293.0 281.1 299.5 2.28 5 500 5450 -27.5 -33.5 57 6.0 -28.2 285 54 299.5 299.6 281.8 301.0 0.45 6 400 7010 -39.7 -53.7 21 14.0 -40.3 300 64 303.4 303.4 282.8 303.6 0.06 7 302 8906 -46.7 -65.7 10 19.0 -47.1 310 93 318.9 318.9 288.4 319.0 0.02 8 300 8950 -46.7 -68.7 6 22.0 -47.1 310 95 319.5 319.5 288.6 319.6 0.01 9 288 9221 -46.8 -69.5 6 22.7 -47.3 310 99 323.2 323.2 289.8 323.2 0.01 10 250 10160 -47.1 -72.1 4 25.0 -47.6 310 95 336.0 336.0 293.3 336.1 0.01 11 200 11620 -49.3 -76.3 3 27.0 -49.8 315 62 354.7 354.7 297.7 354.7 0.01 12 150 13490 -51.3 -78.3 3 27.0 -51.8 290 44 381.7 381.7 302.5 381.7 0.01 13 100 16060 -60.9 -84.9 3 24.0 -61.2 315 42 410.1 410.1 306.5 410.1 0.00 TRP 302 8906 -46.7 -65.7 10 19.0 -47.1 310 93 318.9 318.9 288.4 319.0 0.02 WND 288 9221 -46.8 -69.5 6 22.7 -47.3 310 99 323.2 323.2 289.8 323.2 0.01 Sounding variables and indices 1000-500 mb thick: 5381.00 m Freezing level: 832.18 mb = 1587.26 m = 5207.47 ft Wetbulb zero: 833.60 mb = 1558.94 m = 5114.57 ft Precipitable water: 0.49 inches Sfc-500 mean rel hum: 79.64 % Est. max temperature: 10.17 C = 50.31 F Sfc-Lift cond lev (LCL): 901.35 mb = 931.23 m = 3055.17 ft T: 4.42 C 700-500 lapse rate: 7.41 C/km ThetaE index: 1.88 C Layer 700.0- 500.0 mb Conv cond level (CCL): 858.74 mb = 1322.41 m = 4338.55 ft Mean mixing ratio: 5.07 g/kg Conv temperature: 7.32 C = 45.18 F Cap Strength: 0.19 C Lifted Index: 0.63 C Risk: Showers probable Lifted Index @300 mb: 13.10 C Lifted Index @700 mb: -0.13 C Showalter Index: 0.49 C Risk: Thunderstorms probable Total Totals Index: 57.40 C Risk: Severe Thunderstorms probable Vertical Totals Index: 28.70 C Cross Totals Index: 28.70 C K Index: 27.40 Risk: 40-60 % chance of thunderstorms Sweat Index: 316.40 Risk: Showers and thunderstorms possible Energy Index: -0.12 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 27.91 J/kg Max Up Vert Vel: 7.47 m/s Conv Inhibition (B-): 1.12 J/kg Cap Strength: 0.60 C Lift Cond Lev (LCL): 862.57 mb = 1286.45 m = 4220.58 ft Lev Free Conv (LFC): 817.57 mb = 1712.37 m = 5617.93 ft Equ Level (EL): 567.57 mb = 4504.08 m = 14777.00 ft B at Equ Level: 27.80 J/kg Max Parcel Lev (MPL): 467.57 mb = 5918.85 m = 19418.55 ft Wind level data Storm motion: 317 at 37 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 ---------------------------------------------------------- 0 921 757 280 17 16.7 -3.0 | 161 26 -8.3 24.3 1 850 1405 265 40 39.8 3.5 | 206 34 14.8 30.7 2 700 2939 295 50 45.3 -21.1 | 253 21 20.3 6.1 3 500 5450 285 54 52.2 -14.0 | 244 30 27.1 13.3 4 400 7010 300 64 55.4 -32.0 | 279 31 30.4 -4.8 5 302 8906 310 93 71.2 -59.8 | 305 57 46.2 -32.5 6 300 8950 310 95 72.8 -61.1 | 305 58 47.7 -33.8 7 288 9221 310 99 75.8 -63.6 | 306 62 50.8 -36.4 8 250 10160 310 95 72.8 -61.1 | 305 58 47.7 -33.8 9 200 11620 315 62 43.8 -43.8 | 311 25 18.8 -16.6 10 150 13490 290 44 41.3 -15.0 | 233 20 16.3 12.2 11 100 16060 315 42 29.7 -29.7 | 298 5 4.6 -2.5 Wind Parameters Mean winds (0-6000m): 287.4 at 49.3 knts Storm direction: 317.4 at 37.0 knts Shear (0-3000m) pos: 4.1 neg: 3.4 tot: 7.6 10-3/s Storm rel Dir Shear (0-3000m): 88.9 deg Storm rel helicity (0-3000m) pos: 307.5 neg: -7.5 tot: 300.0 m^2/s^2 ave: 100.0 10^-3 m/s^2 rel: 0.80 Storm rel vorticity (0-3000m) horiz: 9.0 stream: 7.2 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 0.32 Bulk Shear: 87.65 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 ------------------------------------------------------------------------------- 500 271 26 182 27| 0.0 18.9 18.9|118.6 0.0 118.6 237.3 0.93| 19.1 17.7 1000 269 33 196 29| 4.1 9.5 13.5|188.8 0.0 188.8 188.8 0.88| 15.0 13.1 1500 272 37 204 28| 4.9 6.3 11.2|241.0 0.0 241.0 160.6 0.87| 12.8 11.1 2000 277 39 212 26| 5.6 4.7 10.3|290.2 0.0 290.2 145.1 0.87| 11.8 10.3 2500 281 41 219 25| 5.0 3.8 8.8|307.5 -2.7 304.9 121.9 0.84| 10.4 8.7 3000 284 43 224 24| 4.1 3.4 7.6|307.5 -7.5 300.0 100.0 0.80| 9.0 7.2 4000 286 45 231 24| 3.1 3.0 6.1|307.5 -18.8 288.8 72.2 0.71| 7.2 5.2 5000 286 47 235 25| 2.8 2.6 5.4|334.2 -27.4 306.8 61.4 0.68| 6.4 4.4 6000 287 49 240 25| 3.3 2.2 5.5|427.6 -27.4 400.2 66.7 0.73| 6.4 4.6 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20251027.18.gif