UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120409.upa.cvt Date: 0900Z 4 DEC 25 Searching for EG743... Searching the city database file for: EG743 ... Date:0900Z 4 DEC 25 Station: EG743 WMO ident: 3743 Latitude: 51.20 Longitude: -1.80 ------------------------------------------------------------------------------- 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 -33 SFC 980 133 5.2 4.3 94 0.9 4.8 290 4 280.0 280.9 278.9 294.6 5.31 2 925 604 3.0 2.8 99 0.2 2.9 295 21 282.4 283.2 279.7 296.4 5.06 3 850 1285 -0.7 -3.9 79 3.2 -2.0 295 27 285.4 286.0 279.1 295.1 3.37 4 700 2812 -8.9 -10.1 91 1.2 -9.3 195 10 292.6 293.1 281.4 300.2 2.53 5 500 5330 -26.7 -28.9 82 2.2 -27.1 160 29 300.5 300.6 282.5 302.8 0.70 6 400 6900 -38.5 -42.4 67 3.9 -38.8 170 39 305.0 305.0 283.7 305.8 0.23 7 300 8810 -54.7 -58.6 62 3.9 -54.8 185 46 308.2 308.3 284.7 308.4 0.05 8 274 9383 -59.1 -61.1 77 2.0 -59.1 175 50 310.0 310.0 285.4 310.1 0.04 9 250 9960 -56.5 -70.5 16 14.0 -56.6 180 31 322.1 322.1 289.4 322.1 0.01 10 200 11380 -54.1 -79.1 3 25.0 -54.4 205 19 347.1 347.1 296.0 347.1 0.00 11 150 13210 -56.9 -82.9 2 26.0 -57.2 230 12 372.0 372.0 300.9 372.1 0.00 TRP 274 9383 -59.1 -61.1 77 2.0 -59.1 175 50 310.0 310.0 285.4 310.1 0.04 WND Sounding variables and indices 1000-500 mb thick: 5363.00 m Freezing level: 864.19 mb = 1156.16 m = 3793.14 ft Wetbulb zero: 880.42 mb = 1001.83 m = 3286.80 ft Precipitable water: 0.57 inches Sfc-500 mean rel hum: 87.06 % Est. max temperature: 11.50 C = 52.70 F Sfc-Lift cond lev (LCL): 966.57 mb = 245.22 m = 804.51 ft T: 4.67 C 700-500 lapse rate: 7.07 C/km ThetaE index: 1.39 C Layer 850.0- 700.0 mb Conv cond level (CCL): 903.03 mb = 797.62 m = 2616.83 ft Mean mixing ratio: 4.88 g/kg Conv temperature: 8.46 C = 47.23 F Cap Strength: 3.09 C Lifted Index: 5.33 C Risk: None Lifted Index @300 mb: 8.97 C Lifted Index @700 mb: 3.09 C Showalter Index: 5.80 C Risk: None Total Totals Index: 48.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.00 C Cross Totals Index: 22.80 C K Index: 20.90 Risk: 20-40 % chance of thunderstorms Sweat Index: 83.00 Risk: None Energy Index: 1.60 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 16.18 J/kg Max Up Vert Vel: 5.69 m/s Conv Inhibition (B-): 6353.98 J/kg Cap Strength: 5.17 C Lift Cond Lev (LCL): 917.97 mb = 665.42 m = 2183.12 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 230 at 16 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 ---------------------------------------------------------- 0 980 133 290 4 3.8 -1.4 | 35 14 -8.2 -11.5 1 925 604 295 21 19.0 -8.9 | 340 20 7.1 -19.0 2 850 1285 295 27 24.5 -11.4 | 330 25 12.6 -21.6 3 700 2812 195 10 2.6 9.7 | 87 9 -9.3 -0.5 4 500 5330 160 29 -9.9 27.3 | 128 28 -21.8 17.1 5 400 6900 170 39 -6.8 38.4 | 147 34 -18.7 28.2 6 300 8810 185 46 4.0 45.8 | 167 37 -7.9 35.7 7 274 9383 175 50 -4.4 49.8 | 158 43 -16.3 39.6 8 250 9960 180 31 0.0 31.0 | 150 24 -11.9 20.8 9 200 11380 205 19 8.0 17.2 | 151 8 -3.9 7.1 10 150 13210 230 12 9.2 7.7 | 48 4 -2.7 -2.5 Wind Parameters Mean winds (0-6000m): 199.5 at 20.9 knts Storm direction: 229.5 at 15.7 knts Shear (0-3000m) pos: 3.0 neg: 4.7 tot: 7.6 10-3/s Storm rel Dir Shear (0-3000m): 66.7 deg Storm rel helicity (0-3000m) pos: 5.9 neg: -126.1 tot: -120.2 m^2/s^2 ave: -40.1 10^-3 m/s^2 rel: -0.50 Storm rel vorticity (0-3000m) horiz: 10.7 stream: -5.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.19 Bulk Shear: 85.95 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 ------------------------------------------------------------------------------- 500 294 13 0 16| 17.8 0.0 17.8| 0.0 -61.6 -61.6 -123.3 -0.87| 17.8-15.5 1000 295 18 345 18| 8.9 2.3 11.2| 0.0 -78.2 -78.2 -78.2 -0.82| 11.2 -9.2 1500 292 21 338 19| 5.9 3.1 9.0| 0.0-112.4-112.4 -74.9 -0.73| 11.4 -8.3 2000 286 21 333 18| 4.4 4.7 9.2| 0.0-122.7-122.7 -61.4 -0.60| 11.9 -7.2 2500 284 19 335 16| 3.6 5.0 8.5| 0.0-124.2-124.2 -49.7 -0.57| 11.8 -6.7 3000 280 18 336 15| 3.0 4.7 7.6| 5.9-126.1-120.2 -40.1 -0.50| 10.7 -5.3 4000 258 18 321 8| 2.2 4.6 6.8| 22.4-126.1-103.7 -25.9 -0.37| 9.1 -3.3 5000 226 19 208 3| 1.8 4.6 6.4| 26.3-127.7-101.4 -20.3 -0.32| 8.3 -2.6 6000 200 21 153 11| 1.4 4.1 5.6| 64.6-129.9 -65.2 -10.9 -0.24| 7.6 -1.8 Wrote GIF file: /home/apache/climate/data/raob//EG743/skewt/EG743.skewt.20251204.09.gif