UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042312.upa.cvt Date: 1200Z 23 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 23 APR 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 84 315 1 SFC 997 108 0.4 0.1 98 0.3 0.3 315 1 273.8 274.4 273.6 284.2 3.86 2 995 124 1.4 0.3 92 1.1 1.0 314 1 274.9 275.6 274.3 285.6 3.92 3 943 555 -1.1 -2.4 91 1.3 -1.6 293 5 276.7 277.2 274.6 286.0 3.39 4 925 709 -0.9 -2.2 91 1.3 -1.4 285 7 278.4 279.0 275.7 288.1 3.51 5 875 1151 -2.1 -3.5 90 1.4 -2.7 285 12 281.6 282.2 277.2 291.1 3.37 6 850 1382 -1.3 -2.9 89 1.6 -2.0 285 15 284.8 285.4 279.1 295.1 3.63 7 844 1438 -1.1 -2.7 89 1.6 -1.8 286 15 285.6 286.2 279.6 296.2 3.71 8 774 2126 -3.3 -5.1 87 1.8 -4.0 297 18 290.4 291.0 281.4 300.2 3.38 9 700 2915 -7.7 -10.0 84 2.3 -8.5 310 21 294.0 294.4 282.0 301.6 2.55 10 627 3764 -12.5 -14.8 83 2.3 -13.2 295 25 297.9 298.2 283.0 303.9 1.93 11 530 5030 -19.5 -24.5 64 5.0 -20.5 273 31 304.2 304.3 284.3 307.4 0.99 12 500 5460 -23.5 -29.5 58 6.0 -24.5 265 33 304.4 304.5 284.0 306.6 0.66 13 405 6954 -37.1 -46.1 39 9.0 -37.7 246 31 305.7 305.7 283.9 306.2 0.15 14 400 7040 -37.9 -46.9 38 9.0 -38.4 245 31 305.7 305.8 283.9 306.2 0.14 15 364 7682 -43.5 -52.5 36 9.0 -43.9 247 29 306.6 306.6 284.1 306.9 0.08 16 318 8577 -50.1 -59.1 34 9.0 -50.3 250 25 309.5 309.5 285.2 309.7 0.04 17 305 8851 -48.1 -58.1 31 10.0 -48.4 254 28 316.1 316.1 287.5 316.3 0.05 18 300 8960 -47.9 -57.9 31 10.0 -48.2 255 29 317.8 317.8 288.1 318.0 0.05 19 250 10160 -48.9 -58.9 30 10.0 -49.2 250 38 333.4 333.4 292.7 333.6 0.05 20 200 11620 -50.3 -61.3 26 11.0 -50.7 255 40 353.1 353.1 297.4 353.3 0.05 21 150 13490 -50.7 -62.7 23 12.0 -51.1 260 31 382.7 382.7 302.7 383.0 0.06 22 111 15446 -53.1 -66.1 19 13.0 -53.6 271 25 412.6 412.6 306.9 412.9 0.05 23 100 16120 -52.9 -64.9 22 12.0 -53.4 275 23 425.5 425.5 308.4 425.8 0.06 24 70 18420 -52.9 -65.9 19 13.0 -53.7 280 23 471.2 471.2 312.8 471.7 0.08 25 50 20590 -53.1 -67.1 17 14.0 -54.1 518.3 518.4 316.2 518.9 0.09 TRP 318 8577 -50.1 -59.1 34 9.0 -50.3 250 25 309.5 309.5 285.2 309.7 0.04 WND Sounding variables and indices 1000-500 mb thick: 5376.00 m Freezing level: 965.88 mb = 365.50 m = 1199.12 ft Wetbulb zero: 975.69 mb = 281.53 m = 923.66 ft Precipitable water: 0.56 inches Sfc-500 mean rel hum: 81.77 % Est. max temperature: 11.78 C = 53.21 F Sfc-Lift cond lev (LCL): 992.22 mb = 146.77 m = 481.52 ft T: 1.27 C 700-500 lapse rate: 6.21 C/km Conv cond level (CCL): 747.12 mb = 2403.79 m = 7886.36 ft Mean mixing ratio: 3.57 g/kg Conv temperature: 18.23 C = 64.82 F Cap Strength: 15.34 C Lifted Index: 15.03 C Risk: None Lifted Index @300 mb: 21.92 C Lifted Index @700 mb: 9.98 C Showalter Index: 8.94 C Risk: None Total Totals Index: 42.80 C Risk: None Vertical Totals Index: 22.20 C Cross Totals Index: 20.60 C K Index: 17.00 Risk: < 20 % chance of thunderstorms Sweat Index: 63.00 Risk: None Energy Index: 2.41 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.54 J/kg Max Up Vert Vel: 6.56 m/s Conv Inhibition (B-): 32253.37 J/kg Cap Strength: 15.33 C Lift Cond Lev (LCL): 927.39 mb = 688.38 m = 2258.44 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 313 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 ---------------------------------------------------------- 0 997 108 315 1 0.7 -0.7 | 132 15 -11.1 10.1 1 925 709 285 7 6.8 -1.8 | 151 10 -5.1 9.0 2 850 1382 285 15 14.5 -3.9 | 201 7 2.7 7.0 3 700 2915 310 21 16.1 -13.5 | 302 5 4.3 -2.6 4 500 5460 265 33 32.9 2.9 | 237 25 21.1 13.7 5 400 7040 245 31 28.1 13.1 | 214 29 16.3 24.0 6 318 8577 250 25 23.5 8.6 | 211 23 11.7 19.4 7 300 8960 255 29 28.0 7.5 | 221 24 16.2 18.4 8 250 10160 250 38 35.7 13.0 | 225 34 23.9 23.9 9 200 11620 255 40 38.6 10.4 | 232 34 26.8 21.2 10 150 13490 260 31 30.5 5.4 | 229 25 18.7 16.2 11 100 16120 275 23 22.9 -2.0 | 231 14 11.1 8.9 12 70 18420 280 23 22.7 -4.0 | 238 13 10.8 6.9 Wind Parameters Mean winds (0-6000m): 282.6 at 21.4 knts Storm direction: 312.6 at 16.0 knts Shear (0-3000m) pos: 2.0 neg: 1.9 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 158.5 deg Storm rel helicity (0-3000m) pos: 39.2 neg: -1.5 tot: 37.8 m^2/s^2 ave: 12.6 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 3.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.51 Bulk Shear: 42.62 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 ------------------------------------------------------------------------------- 500 289 3 139 13| 0.0 5.3 5.3| 8.3 0.0 8.3 16.6 0.50| 5.4 2.7 1000 286 6 147 11| 0.0 5.6 5.6| 20.7 0.0 20.7 20.7 0.69| 5.7 3.9 1500 286 9 158 9| 1.5 3.7 5.2| 28.9 0.0 28.9 19.3 0.76| 5.4 4.1 2000 289 11 168 8| 1.7 2.8 4.5| 32.9 0.0 32.9 16.4 0.77| 4.8 3.7 2500 293 12 176 6| 2.0 2.2 4.2| 36.8 0.0 36.8 14.7 0.80| 4.6 3.7 3000 297 14 186 5| 2.0 1.9 3.9| 39.2 -1.5 37.8 12.6 0.73| 4.4 3.2 4000 297 16 219 4| 1.5 2.4 3.9| 39.2 -14.0 25.2 6.3 0.40| 4.5 1.8 5000 290 19 235 7| 1.2 2.7 3.9| 39.2 -40.2 -1.0 -0.2 0.19| 4.6 0.9 6000 283 21 236 11| 1.0 2.6 3.6| 39.2 -85.1 -45.9 -7.6 0.03| 4.6 0.1 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250423.12.gif