UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121718.upa.cvt Date: 1800Z 17 DEC 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:1800Z 17 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 178 SFC 934 757 6.8 3.6 80 3.2 5.2 240 3 285.5 286.4 281.5 300.4 5.30 2 925 831 8.4 1.4 61 7.0 5.0 255 1 287.9 288.7 281.7 301.0 4.57 3 850 1526 4.6 -2.4 60 7.0 1.5 245 7 291.0 291.6 282.1 302.0 3.77 4 700 3075 -6.1 -7.0 93 0.9 -6.5 235 9 295.7 296.3 283.5 305.4 3.23 5 500 5640 -21.3 -23.6 82 2.3 -21.8 170 3 307.1 307.3 285.6 310.8 1.14 6 400 7240 -33.7 -37.2 71 3.5 -34.1 175 1 311.2 311.3 286.2 312.6 0.39 7 300 9190 -50.3 -54.7 60 4.4 -50.4 160 13 314.5 314.5 287.0 314.7 0.08 8 251 10335 -57.1 -65.1 36 8.0 -57.2 100 5 320.8 320.8 289.0 320.9 0.02 9 250 10360 -56.9 -64.9 36 8.0 -57.0 90 3 321.5 321.5 289.2 321.6 0.02 10 200 11770 -59.3 -75.3 11 16.0 -59.5 85 15 338.9 338.9 294.0 338.9 0.01 11 150 13590 -59.9 -83.9 3 24.0 -60.1 120 3 366.9 366.9 300.0 366.9 0.00 12 100 16110 -62.1 -86.1 3 24.0 -62.3 250 13 407.7 407.7 306.2 407.8 0.00 TRP 251 10335 -57.1 -65.1 36 8.0 -57.2 100 5 320.8 320.8 289.0 320.9 0.02 WND Sounding variables and indices 1000-500 mb thick: 5462.00 m Freezing level: 785.51 mb = 2191.93 m = 7191.27 ft Wetbulb zero: 821.95 mb = 1793.71 m = 5884.80 ft Precipitable water: 0.57 inches Sfc-500 mean rel hum: 80.32 % Est. max temperature: 14.18 C = 57.52 F Sfc-Lift cond lev (LCL): 889.29 mb = 1154.64 m = 3788.13 ft T: 6.63 C 700-500 lapse rate: 5.93 C/km ThetaE index: 0.00 C Layer 934.0--1821066112.0 mb Conv cond level (CCL): 741.75 mb = 2612.83 m = 8572.18 ft Mean mixing ratio: 4.16 g/kg Conv temperature: 15.50 C = 59.90 F Cap Strength: 2.93 C Lifted Index: 6.63 C Risk: None Lifted Index @300 mb: 9.27 C Lifted Index @700 mb: 2.49 C Showalter Index: 6.28 C Risk: None Total Totals Index: 44.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.90 C Cross Totals Index: 18.90 C K Index: 22.60 Risk: 20-40 % chance of thunderstorms Sweat Index: 17.00 Risk: None Energy Index: 1.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.03 J/kg Max Up Vert Vel: 4.25 m/s Conv Inhibition (B-): 10694.40 J/kg Cap Strength: 6.44 C Lift Cond Lev (LCL): 795.67 mb = 2052.94 m = 6735.28 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 256 at 4 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 ---------------------------------------------------------- 0 934 757 240 3 2.6 1.5 | 110 2 -1.4 0.5 1 925 831 255 1 1.0 0.3 | 77 3 -3.1 -0.7 2 850 1526 245 7 6.3 3.0 | 230 3 2.3 2.0 3 700 3075 235 9 7.4 5.2 | 219 5 3.4 4.2 4 500 5640 170 3 -0.5 3.0 | 113 5 -4.5 2.0 5 400 7240 175 1 -0.1 1.0 | 90 4 -4.1 0.0 6 300 9190 160 13 -4.4 12.2 | 143 14 -8.5 11.2 7 251 10335 100 5 -4.9 0.9 | 89 9 -8.9 -0.1 8 250 10360 90 3 -3.0 0.0 | 82 7 -7.0 -1.0 9 200 11770 85 15 -14.9 -1.3 | 83 19 -19.0 -2.3 10 150 13590 120 3 -2.6 1.5 | 94 7 -6.6 0.5 11 100 16110 250 13 12.2 4.4 | 247 9 8.2 3.5 Wind Parameters Mean winds (0-6000m): 226.2 at 5.5 knts Storm direction: 256.2 at 4.1 knts Shear (0-3000m) pos: 0.3 neg: 0.7 tot: 1.0 10-3/s Storm rel Dir Shear (0-3000m): 76.0 deg Storm rel helicity (0-3000m) pos: 0.6 neg: -5.4 tot: -4.8 m^2/s^2 ave: -1.6 10^-3 m/s^2 rel: -0.19 Storm rel vorticity (0-3000m) horiz: 2.3 stream: -0.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 6.65 Bulk Shear: 1.36 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 ------------------------------------------------------------------------------- 500 249 3 89 1| 1.8 0.0 1.8| 0.4 -0.6 -0.3 -0.5 0.10| 5.6 0.6 1000 245 5 187 1| 0.9 1.4 2.3| 0.6 -0.7 -0.1 -0.1 0.13| 4.2 0.5 1500 244 6 213 2| 0.6 1.2 1.8| 0.6 -0.9 -0.4 -0.2 0.09| 3.1 0.3 2000 242 6 217 2| 0.5 1.1 1.5| 0.6 -1.3 -0.7 -0.3 0.05| 2.5 0.1 2500 240 7 217 3| 0.4 0.9 1.3| 0.6 -2.6 -2.1 -0.8 -0.04| 2.3 -0.1 3000 237 7 213 3| 0.3 0.7 1.0| 0.6 -5.4 -4.8 -1.6 -0.19| 2.3 -0.4 4000 232 7 203 3| 0.2 0.6 0.8| 0.6 -10.1 -9.5 -2.4 -0.37| 2.2 -0.8 5000 230 6 194 3| 0.2 0.5 0.7| 0.6 -13.7 -13.1 -2.6 -0.45| 2.0 -0.9 6000 226 6 179 3| 0.2 0.4 0.6| 0.6 -15.0 -14.4 -2.4 -0.48| 1.8 -0.9 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20251217.18.gif