UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101700.upa.cvt Date: 0000Z 17 OCT 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 17 OCT 25 Station: U2820 WMO ident: 22820 Latitude: 61.82 Longitude: 34.27 ------------------------------------------------------------------------------- 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 33 250 5 SFC 991 106 1.0 -0.2 92 1.2 0.5 250 5 274.9 275.5 274.1 285.2 3.80 2 962 345 2.0 -0.1 86 2.1 1.1 274 12 278.2 278.9 276.2 289.1 3.94 3 925 661 0.0 -3.6 77 3.6 -1.4 305 21 279.3 279.8 275.7 288.2 3.16 4 850 1333 -3.9 -10.9 58 7.0 -6.1 305 19 282.1 282.4 275.5 287.7 1.95 5 790 1906 -8.1 -16.1 53 8.0 -10.2 311 21 283.5 283.8 275.4 287.6 1.38 6 726 2559 -11.1 -27.1 25 16.0 -14.2 317 24 287.2 287.3 276.1 289.0 0.57 7 700 2838 -13.3 -29.3 25 16.0 -16.1 320 25 287.8 287.8 276.3 289.3 0.48 8 675 3114 -15.7 -33.7 20 18.0 -18.3 317 25 288.1 288.1 276.2 289.1 0.33 9 570 4363 -26.5 -38.5 31 12.0 -27.6 305 27 289.7 289.7 276.9 290.5 0.24 10 500 5300 -31.7 -45.7 24 14.0 -32.6 295 29 294.4 294.4 279.0 294.8 0.13 11 410 6690 -37.1 -51.1 22 14.0 -37.8 268 57 304.6 304.6 283.4 304.9 0.08 12 400 6860 -38.7 -52.7 21 14.0 -39.4 265 60 304.7 304.7 283.4 305.0 0.07 13 383 7156 -40.9 -53.9 23 13.0 -41.4 265 61 305.6 305.6 283.7 305.8 0.07 14 311 8552 -46.9 -59.9 21 13.0 -47.3 265 68 316.0 316.0 287.5 316.1 0.04 15 300 8790 -46.7 -59.7 21 13.0 -47.1 270 75 319.5 319.5 288.6 319.7 0.04 16 263 9664 -48.5 -62.5 18 14.0 -48.8 266 81 329.2 329.2 291.5 329.3 0.03 17 250 10000 -48.1 -62.1 18 14.0 -48.5 265 83 334.6 334.6 293.0 334.7 0.04 18 241 10242 -48.4 -62.9 17 14.5 -48.8 270 93 337.6 337.6 293.7 337.7 0.03 19 213 11053 -49.5 -65.5 14 16.0 -49.9 348.1 348.1 296.2 348.2 0.03 TRP 311 8552 -46.9 -59.9 21 13.0 -47.3 265 68 316.0 316.0 287.5 316.1 0.04 WND 241 10242 -48.4 -62.9 17 14.5 -48.8 270 93 337.6 337.6 293.7 337.7 0.03 Sounding variables and indices 1000-500 mb thick: 5267.00 m Freezing level: 925.00 mb = 661.00 m = 2168.61 ft Wetbulb zero: 945.85 mb = 481.62 m = 1580.09 ft Precipitable water: 0.27 inches Sfc-500 mean rel hum: 41.70 % Est. max temperature: 8.40 C = 47.12 F Sfc-Lift cond lev (LCL): 972.54 mb = 257.42 m = 844.56 ft T: 1.63 C 700-500 lapse rate: 7.47 C/km ThetaE index: 1.47 C Layer 925.0- 726.0 mb Conv cond level (CCL): 852.93 mb = 1305.65 m = 4283.59 ft Mean mixing ratio: 3.40 g/kg Conv temperature: 8.07 C = 46.53 F Cap Strength: 3.70 C Lifted Index: 6.01 C Risk: None Lifted Index @300 mb: 22.36 C Lifted Index @700 mb: 3.67 C Showalter Index: 6.25 C Risk: None Total Totals Index: 48.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.80 C Cross Totals Index: 20.80 C K Index: 0.90 Risk: None Sweat Index: 67.00 Risk: None Energy Index: 1.49 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.13 J/kg Max Up Vert Vel: 5.85 m/s Conv Inhibition (B-): 5348.55 J/kg Cap Strength: 5.69 C Lift Cond Lev (LCL): 897.75 mb = 898.64 m = 2948.25 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 333 at 19 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 ---------------------------------------------------------- 0 991 106 250 5 4.7 1.7 | 168 19 -3.8 18.6 1 925 661 305 21 17.2 -12.0 | 241 10 8.7 4.8 2 850 1333 305 19 15.6 -10.9 | 230 9 7.1 6.0 3 700 2838 320 25 16.1 -19.2 | 287 8 7.6 -2.3 4 500 5300 295 29 26.3 -12.3 | 255 18 17.8 4.6 5 400 6860 265 60 59.8 5.2 | 247 56 51.3 22.1 6 311 8552 265 68 67.7 5.9 | 249 63 59.2 22.8 7 300 8790 270 75 75.0 -0.0 | 256 69 66.5 16.9 8 250 10000 265 83 82.7 7.2 | 252 78 74.2 24.1 Wind Parameters Mean winds (0-6000m): 303.2 at 25.2 knts Storm direction: 333.2 at 18.9 knts Shear (0-3000m) pos: 3.9 neg: 0.2 tot: 4.1 10-3/s Storm rel Dir Shear (0-3000m): 113.4 deg Storm rel helicity (0-3000m) pos: 88.7 neg: -5.5 tot: 83.3 m^2/s^2 ave: 27.8 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 5.4 stream: 4.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.73 Bulk Shear: 23.50 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 12 192 12| 17.1 0.0 17.1| 66.2 0.0 66.2 132.4 0.89| 18.6 16.6 1000 301 16 213 10| 8.9 0.0 8.9| 71.9 -2.8 69.1 69.1 0.79| 11.2 8.8 1500 303 17 219 10| 6.1 0.0 6.1| 74.9 -4.2 70.6 47.1 0.75| 8.1 6.1 2000 305 18 225 9| 5.2 0.0 5.2| 80.5 -4.2 76.3 38.2 0.77| 6.8 5.2 2500 308 19 233 8| 4.7 0.0 4.7| 86.3 -4.2 82.1 32.9 0.80| 6.0 4.8 3000 310 20 241 8| 3.9 0.2 4.1| 88.7 -5.5 83.3 27.8 0.75| 5.4 4.1 4000 311 22 251 8| 2.9 0.7 3.6| 88.7 -13.2 75.5 18.9 0.58| 4.7 2.7 5000 308 23 255 10| 2.3 1.1 3.4| 88.7 -24.4 64.4 12.9 0.44| 4.3 1.9 6000 303 25 256 13| 1.9 2.6 4.5| 93.0 -39.0 54.0 9.0 0.28| 5.3 1.5 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251017.00.gif