UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102100.upa.cvt Date: 0000Z 21 OCT 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 21 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 ------------------------------------------------------------------------------- SFC 1002 105 3.8 2.4 91 1.4 3.2 225 5 276.8 277.6 276.2 289.1 4.54 1 1000 121 3.4 1.5 87 1.9 2.5 225 5 276.5 277.3 275.7 288.2 4.26 2 961 443 1.2 -0.1 91 1.3 0.7 240 15 277.5 278.2 275.8 288.3 3.95 3 925 750 0.8 -1.2 86 2.0 -0.0 255 25 280.1 280.8 277.0 290.7 3.78 4 909 890 0.8 -2.4 79 3.2 -0.5 252 23 281.5 282.1 277.4 291.4 3.52 5 856 1369 -3.1 -5.4 84 2.3 -4.0 241 16 282.3 282.8 277.0 290.8 2.98 6 854 1388 -3.3 -5.6 84 2.3 -4.1 241 16 282.3 282.8 277.0 290.7 2.94 7 850 1425 -1.7 -4.4 82 2.7 -2.8 240 15 284.4 284.9 278.4 293.6 3.24 8 842 1500 -1.3 -6.3 69 5.0 -3.2 240 15 285.6 286.0 278.5 293.7 2.83 9 773 2177 -4.9 -12.9 53 8.0 -7.4 242 15 288.7 289.1 278.7 294.2 1.83 10 762 2290 -5.1 -15.1 45 10.0 -8.1 243 15 289.7 290.0 278.8 294.4 1.55 11 737 2552 -4.9 -12.9 53 8.0 -7.5 244 15 292.7 293.1 280.7 298.5 1.92 12 700 2955 -7.9 -15.9 53 8.0 -10.2 245 15 293.7 294.0 280.7 298.6 1.58 13 599 4143 -17.1 -20.5 75 3.4 -17.9 264 18 296.5 296.7 281.5 300.4 1.25 14 520 5193 -21.7 -24.6 77 2.9 -22.3 280 20 303.2 303.3 284.0 306.4 1.00 15 506 5393 -22.7 -25.8 76 3.1 -23.3 284 21 304.3 304.5 284.3 307.4 0.92 16 505 5407 -23.9 -27.4 73 3.5 -24.5 284 21 303.0 303.2 283.7 305.7 0.80 17 500 5480 -24.1 -27.7 72 3.6 -24.7 285 21 303.7 303.8 283.9 306.2 0.78 18 446 6308 -29.5 -35.5 56 6.0 -30.2 300 29 306.9 307.0 284.7 308.4 0.42 19 400 7080 -34.1 -38.4 65 4.3 -34.5 315 36 310.7 310.7 286.0 311.9 0.35 20 319 8623 -44.1 -47.9 66 3.8 -44.3 323 55 317.6 317.6 288.1 318.2 0.16 21 300 9030 -47.5 -51.1 66 3.6 -47.6 325 60 318.4 318.4 288.3 318.8 0.12 22 297 9096 -48.7 -52.4 65 3.7 -48.8 325 60 317.6 317.6 288.1 318.0 0.10 23 252 10159 -54.7 -58.4 63 3.7 -54.8 330 62 324.0 324.0 290.0 324.2 0.06 24 250 10210 -56.1 -59.7 64 3.6 -56.2 330 62 322.7 322.7 289.6 322.9 0.05 25 249 10235 -56.2 -59.8 64 3.6 -56.3 330 62 322.8 322.8 289.7 323.0 0.05 26 247 10287 -56.5 -60.0 65 3.5 -56.6 330 62 323.2 323.2 289.8 323.4 0.05 27 201 11569 -64.1 -68.1 58 4.0 -64.1 330 58 330.8 330.8 291.9 330.9 0.02 28 200 11600 -63.9 -67.9 58 4.0 -64.0 330 58 331.6 331.6 292.2 331.7 0.02 29 189 11947 -62.1 -66.1 59 4.0 -62.1 326 53 339.9 339.9 294.3 340.0 0.03 30 150 13380 -59.5 -63.8 57 4.3 -59.6 310 35 367.6 367.6 300.2 367.8 0.05 31 134 14087 -58.9 -63.6 54 4.7 -59.0 380.7 380.7 302.4 380.9 0.06 TRP 201 11569 -64.1 -68.1 58 4.0 -64.1 330 58 330.8 330.8 291.9 330.9 0.02 WND 249 10235 -56.2 -59.8 64 3.6 -56.3 330 62 322.8 322.8 289.7 323.0 0.05 Sounding variables and indices 1000-500 mb thick: 5359.00 m Freezing level: 898.13 mb = 988.42 m = 3242.82 ft Wetbulb zero: 926.99 mb = 732.73 m = 2403.93 ft Precipitable water: 0.48 inches Sfc-500 mean rel hum: 70.07 % Est. max temperature: 10.35 C = 50.63 F Sfc-Lift cond lev (LCL): 980.49 mb = 280.38 m = 919.86 ft T: 2.31 C 700-500 lapse rate: 6.42 C/km ThetaE index: 0.98 C Layer 1000.0- 961.0 mb Conv cond level (CCL): 877.12 mb = 1174.89 m = 3854.57 ft Mean mixing ratio: 3.90 g/kg Conv temperature: 9.02 C = 48.24 F Cap Strength: 13.20 C Lifted Index: 12.56 C Risk: None Lifted Index @300 mb: 20.57 C Lifted Index @700 mb: 8.08 C Showalter Index: 9.45 C Risk: None Total Totals Index: 42.10 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 19.70 C K Index: 10.00 Risk: None Sweat Index: 164.39 Risk: None Energy Index: 2.61 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 19.48 J/kg Max Up Vert Vel: 6.24 m/s Conv Inhibition (B-): 10151.51 J/kg Cap Strength: 12.83 C Lift Cond Lev (LCL): 923.04 mb = 767.02 m = 2516.43 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 292 at 13 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 1002 105 225 5 3.5 3.5 | 134 12 -8.8 8.5 1 1000 121 225 5 3.5 3.5 | 134 12 -8.8 8.5 2 925 750 255 25 24.1 6.5 | 226 16 11.8 11.5 3 850 1425 240 15 13.0 7.5 | 183 13 0.7 12.5 4 700 2955 245 15 13.6 6.3 | 186 11 1.3 11.3 5 500 5480 285 21 20.3 -5.4 | 273 8 7.9 -0.4 6 400 7080 315 36 25.5 -25.5 | 327 24 13.1 -20.5 7 300 9030 325 60 34.4 -49.1 | 333 49 22.1 -44.1 8 250 10210 330 62 31.0 -53.7 | 339 52 18.7 -48.7 9 249 10235 330 62 31.0 -53.7 | 339 52 18.7 -48.7 10 201 11569 330 58 29.0 -50.2 | 340 48 16.7 -45.2 11 200 11600 330 58 29.0 -50.2 | 340 48 16.7 -45.2 12 150 13380 310 35 26.8 -22.5 | 320 23 14.5 -17.5 Wind Parameters Mean winds (0-6000m): 262.1 at 17.8 knts Storm direction: 292.1 at 13.3 knts Shear (0-3000m) pos: 2.9 neg: 1.0 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 55.4 deg Storm rel helicity (0-3000m) pos: 72.5 neg: -35.8 tot: 36.7 m^2/s^2 ave: 12.2 10^-3 m/s^2 rel: 0.35 Storm rel vorticity (0-3000m) horiz: 5.7 stream: 2.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.85 Bulk Shear: 6.83 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 ------------------------------------------------------------------------------- 500 243 12 173 11| 16.4 0.0 16.4| 52.6 0.0 52.6 105.1 0.98| 16.8 16.5 1000 251 17 201 12| 8.2 0.4 8.6| 68.5 -18.5 50.0 50.0 0.59| 13.3 7.9 1500 249 17 198 12| 5.5 2.0 7.5| 68.7 -35.8 32.9 21.9 0.33| 10.7 3.6 2000 247 17 195 12| 4.1 1.5 5.6| 69.4 -35.8 33.6 16.8 0.34| 8.1 2.7 2500 246 16 193 12| 3.3 1.2 4.5| 70.1 -35.8 34.3 13.7 0.34| 6.6 2.2 3000 246 16 192 12| 2.9 1.0 3.9| 72.5 -35.8 36.7 12.2 0.35| 5.7 2.0 4000 249 16 194 11| 2.6 0.8 3.3| 84.7 -35.8 48.8 12.2 0.43| 4.9 2.1 5000 254 17 202 10| 2.4 0.6 3.0| 96.7 -35.8 60.9 12.2 0.50| 4.5 2.3 6000 262 18 215 9| 2.6 0.5 3.1|115.8 -35.8 80.0 13.3 0.54| 4.6 2.5 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251021.00.gif