UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101012.upa.cvt Date: 1200Z 10 OCT 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 10 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 67 160 5 SFC 995 109 10.6 9.1 90 1.5 9.7 160 5 284.2 285.4 283.1 304.4 7.30 2 925 709 6.8 5.5 91 1.3 6.1 195 15 286.3 287.3 282.8 303.5 6.13 3 850 1403 3.0 1.6 90 1.4 2.3 210 19 289.3 290.2 282.9 303.8 5.05 4 700 2953 -5.5 -7.3 87 1.8 -6.2 225 19 296.4 297.0 283.7 305.9 3.15 5 681 3168 -6.7 -8.4 88 1.7 -7.4 223 20 297.4 297.9 284.0 306.4 2.98 6 629 3785 -9.1 -10.6 89 1.5 -9.6 219 24 301.5 302.0 285.2 309.9 2.71 7 620 3896 -9.5 -11.2 87 1.7 -10.1 218 25 302.3 302.8 285.5 310.4 2.62 8 572 4513 -13.7 -16.3 81 2.6 -14.5 213 29 304.4 304.7 285.4 310.3 1.87 9 551 4798 -13.3 -16.2 79 2.9 -14.2 211 30 308.1 308.5 286.9 314.4 1.96 10 500 5530 -18.1 -22.5 68 4.4 -19.2 205 35 311.0 311.2 287.1 315.1 1.26 11 435 6556 -24.9 -29.9 63 5.0 -25.8 208 44 315.0 315.1 287.9 317.5 0.73 12 400 7160 -29.5 -36.5 51 7.0 -30.4 210 50 316.6 316.7 288.1 318.2 0.42 13 303 9074 -44.9 -54.9 32 10.0 -45.3 210 56 321.2 321.2 289.2 321.4 0.07 14 300 9140 -45.1 -55.1 32 10.0 -45.5 210 56 321.8 321.8 289.4 322.1 0.07 15 255 10203 -54.7 -64.7 28 10.0 -54.9 210 60 322.9 322.9 289.7 323.0 0.02 16 250 10330 -55.3 -65.3 28 10.0 -55.5 210 60 323.8 323.8 289.9 323.9 0.02 17 238 10642 -56.9 -66.9 27 10.0 -57.1 210 58 326.0 326.0 290.6 326.1 0.02 18 230 10858 -57.3 -67.3 27 10.0 -57.5 210 53 328.6 328.6 291.3 328.7 0.02 19 223 11055 -52.3 -63.3 25 11.0 -52.5 210 49 339.2 339.2 294.1 339.4 0.03 20 200 11760 -51.3 -62.3 26 11.0 -51.6 210 35 351.5 351.5 297.0 351.7 0.04 21 165 13017 -49.5 -62.5 20 13.0 -50.0 227 30 374.4 374.4 301.4 374.7 0.05 22 150 13640 -51.1 -65.1 17 14.0 -51.6 235 27 382.0 382.0 302.6 382.2 0.04 23 108 15750 -56.3 -72.3 12 16.0 -56.7 235 12 409.8 409.8 306.5 409.9 0.02 24 100 16240 -55.1 -71.1 12 16.0 -55.6 235 9 421.3 421.3 307.9 421.4 0.03 25 98 16368 -54.5 -70.5 12 16.0 -55.0 237 9 424.9 424.9 308.3 425.0 0.03 26 70 18500 -56.9 -74.9 9 18.0 -57.5 275 9 462.7 462.7 312.0 462.8 0.02 27 50 20620 -58.7 -78.7 6 20.0 -59.3 285 7 505.2 505.2 315.3 505.2 0.02 28 39 22170 -61.1 -81.1 5 20.0 -61.7 290 8 536.3 536.3 317.3 536.4 0.01 29 30 23800 -60.5 -80.5 6 20.0 -61.3 295 9 579.7 579.7 319.6 579.8 0.02 30 20 26326 -60.5 -78.5 8 18.0 -61.7 651.0 651.0 322.7 651.3 0.04 TRP 238 10642 -56.9 -66.9 27 10.0 -57.1 210 58 326.0 326.0 290.6 326.1 0.02 WND 250 10330 -55.3 -65.3 28 10.0 -55.5 210 60 323.8 323.8 289.9 323.9 0.02 Sounding variables and indices 1000-500 mb thick: 5463.00 m Freezing level: 797.06 mb = 1950.06 m = 6397.75 ft Wetbulb zero: 809.31 mb = 1794.65 m = 5887.89 ft Precipitable water: 0.83 inches Sfc-500 mean rel hum: 85.96 % Est. max temperature: 15.94 C = 60.69 F Sfc-Lift cond lev (LCL): 972.67 mb = 295.32 m = 968.90 ft T: 9.42 C 700-500 lapse rate: 4.89 C/km ThetaE index: 0.90 C Layer 925.0- 850.0 mb Conv cond level (CCL): 908.59 mb = 855.88 m = 2807.96 ft Mean mixing ratio: 6.46 g/kg Conv temperature: 13.35 C = 56.03 F Cap Strength: 7.28 C Lifted Index: 8.25 C Risk: None Lifted Index @300 mb: 12.89 C Lifted Index @700 mb: 1.80 C Showalter Index: 8.28 C Risk: None Total Totals Index: 40.80 C Risk: None Vertical Totals Index: 21.10 C Cross Totals Index: 19.70 C K Index: 20.90 Risk: 20-40 % chance of thunderstorms Sweat Index: 92.20 Risk: None Energy Index: 2.29 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.78 J/kg Max Up Vert Vel: 4.64 m/s Conv Inhibition (B-): 44008.19 J/kg Cap Strength: 8.14 C Lift Cond Lev (LCL): 924.83 mb = 710.47 m = 2330.91 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 240 at 17 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 ---------------------------------------------------------- 0 995 109 160 5 -1.7 4.7 | 77 17 -16.9 -3.9 1 925 709 195 15 3.9 14.5 | 118 13 -11.3 5.9 2 850 1403 210 19 9.5 16.5 | 144 10 -5.7 7.9 3 700 2953 225 19 13.4 13.4 | 160 5 -1.7 4.8 4 500 5530 205 35 14.8 31.7 | 179 23 -0.4 23.1 5 400 7160 210 50 25.0 43.3 | 196 36 9.8 34.7 6 300 9140 210 56 28.0 48.5 | 198 42 12.8 39.9 7 250 10330 210 60 30.0 52.0 | 199 46 14.8 43.4 8 238 10642 210 58 29.0 50.2 | 198 44 13.8 41.6 9 200 11760 210 35 17.5 30.3 | 186 22 2.3 21.7 10 150 13640 235 27 22.1 15.5 | 225 10 6.9 6.9 11 100 16240 235 9 7.4 5.2 | 66 9 -7.8 -3.4 12 70 18500 275 9 9.0 -0.8 | 34 11 -6.2 -9.4 13 50 20620 285 7 6.8 -1.8 | 39 13 -8.4 -10.4 14 30 23800 295 9 8.2 -3.8 | 30 14 -7.0 -12.4 Wind Parameters Mean winds (0-6000m): 210.5 at 23.3 knts Storm direction: 240.5 at 17.4 knts Shear (0-3000m) pos: 3.1 neg: 0.0 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 89.8 deg Storm rel helicity (0-3000m) pos: 64.1 neg: 0.0 tot: 64.1 m^2/s^2 ave: 21.4 10^-3 m/s^2 rel: 0.79 Storm rel vorticity (0-3000m) horiz: 4.1 stream: 3.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.34 Bulk Shear: 32.06 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 ------------------------------------------------------------------------------- 500 185 9 92 14| 9.6 0.0 9.6| 37.2 0.0 37.2 74.4 0.93| 9.9 9.1 1000 193 12 106 13| 7.3 0.0 7.3| 52.9 0.0 52.9 52.9 0.90| 7.8 7.0 1500 200 14 116 11| 5.6 0.0 5.6| 59.8 0.0 59.8 39.9 0.88| 6.3 5.6 2000 205 16 123 10| 4.3 0.0 4.3| 61.3 0.0 61.3 30.6 0.84| 5.2 4.3 2500 208 16 128 9| 3.5 0.0 3.5| 62.4 0.0 62.4 25.0 0.81| 4.5 3.6 3000 211 17 132 9| 3.1 0.0 3.1| 64.1 0.0 64.1 21.4 0.79| 4.1 3.2 4000 214 18 143 8| 2.4 0.9 3.2| 68.4 0.0 68.4 17.1 0.67| 3.9 2.6 5000 213 21 155 10| 1.9 1.5 3.3| 68.8 -1.6 67.2 13.4 0.54| 3.9 2.1 6000 210 23 164 12| 2.0 1.5 3.5| 89.8 -4.4 85.3 14.2 0.49| 4.0 2.0 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251010.12.gif