UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120800.upa.cvt Date: 0000Z 8 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 8 DEC 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 1011 114 -3.1 -4.6 89 1.5 -3.6 110 9 269.2 269.6 269.0 276.4 2.68 1 1000 200 -4.1 -6.8 81 2.7 -5.0 120 9 269.0 269.4 268.2 275.3 2.29 2 954 568 -6.9 -8.4 89 1.5 -7.4 147 20 269.9 270.2 268.4 275.7 2.12 3 942 666 -6.5 -7.9 90 1.4 -7.0 154 23 271.2 271.6 269.5 277.4 2.23 4 933 741 -3.9 -4.8 93 0.9 -4.2 160 25 274.6 275.1 272.6 282.5 2.86 5 925 809 -4.1 -4.8 95 0.7 -4.4 165 27 275.1 275.6 272.9 283.1 2.89 6 872 1275 -4.1 -4.9 94 0.8 -4.4 162 27 279.8 280.3 275.8 288.3 3.04 7 850 1476 -5.5 -6.8 91 1.3 -6.0 160 27 280.4 280.8 275.6 288.0 2.70 8 796 1988 -8.3 -9.6 90 1.3 -8.7 180 24 282.7 283.1 276.3 289.4 2.32 9 706 2918 -9.3 -10.4 92 1.1 -9.6 217 17 291.5 291.9 280.8 298.8 2.45 10 700 2984 -9.9 -11.2 90 1.3 -10.4 220 17 291.5 291.9 280.7 298.4 2.32 11 605 4090 -18.3 -20.2 85 1.9 -18.7 244 19 294.2 294.5 280.6 298.2 1.27 12 596 4202 -19.3 -23.1 72 3.8 -20.1 246 19 294.3 294.5 280.2 297.5 1.00 13 565 4598 -20.7 -27.7 53 7.0 -21.9 255 20 297.2 297.4 281.1 299.5 0.69 14 500 5490 -26.9 -33.9 52 7.0 -27.8 275 21 300.2 300.3 282.0 301.7 0.43 15 435 6484 -32.7 -38.7 55 6.0 -33.3 269 21 305.1 305.1 283.8 306.2 0.31 16 400 7070 -37.3 -43.3 54 6.0 -37.7 265 21 306.5 306.6 284.3 307.3 0.21 17 300 8980 -53.3 -57.6 59 4.3 -53.4 280 29 310.2 310.2 285.5 310.4 0.05 18 250 10130 -62.7 -66.8 58 4.1 -62.7 280 40 312.9 312.9 286.4 312.9 0.02 19 221 10878 -68.9 -73.0 55 4.1 -68.9 280 46 314.5 314.5 286.9 314.6 0.01 20 200 11470 -71.9 -75.7 57 3.8 -71.9 280 50 318.9 318.9 288.4 318.9 0.01 21 198 11529 -72.3 -76.2 56 3.9 -72.3 280 50 319.2 319.2 288.5 319.2 0.01 22 182 12030 -69.3 -73.5 54 4.2 -69.3 283 46 331.8 331.8 292.2 331.9 0.01 23 150 13190 -67.9 -72.1 55 4.2 -67.9 290 36 353.1 353.1 297.3 353.2 0.02 24 100 15600 -69.9 -74.1 54 4.2 -69.9 300 36 392.7 392.7 304.2 392.8 0.02 25 70 17720 -71.7 -75.9 53 4.2 -71.8 295 35 431.0 431.0 309.0 431.1 0.02 26 52 19464 -73.9 -78.5 49 4.6 -73.9 464.1 464.1 312.1 464.2 0.02 TRP 198 11529 -72.3 -76.2 56 3.9 -72.3 280 50 319.2 319.2 288.5 319.2 0.01 WND Sounding variables and indices 1000-500 mb thick: 5290.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.43 inches Sfc-500 mean rel hum: 81.02 % Est. max temperature: 7.82 C = 46.07 F Sfc-Lift cond lev (LCL): 987.27 mb = 300.09 m = 984.55 ft T: -4.86 C 700-500 lapse rate: 6.78 C/km ThetaE index: 1.28 C Layer 700.0- 565.0 mb Conv cond level (CCL): 957.95 mb = 535.53 m = 1756.96 ft Mean mixing ratio: 2.42 g/kg Conv temperature: -2.52 C = 27.47 F Cap Strength: 17.13 C Lifted Index: 18.72 C Risk: None Lifted Index @300 mb: 22.97 C Lifted Index @700 mb: 14.40 C Showalter Index: 10.81 C Risk: None Total Totals Index: 41.50 C Risk: None Vertical Totals Index: 21.40 C Cross Totals Index: 20.10 C K Index: 13.30 Risk: None Sweat Index: 213.29 Risk: None Energy Index: 2.87 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 33.04 J/kg Max Up Vert Vel: 8.13 m/s Conv Inhibition (B-): 28050.18 J/kg Cap Strength: 18.54 C Lift Cond Lev (LCL): 936.34 mb = 713.37 m = 2340.41 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 243 at 15 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 1011 114 110 9 -8.5 3.1 | 80 23 -22.3 -3.8 1 1000 200 120 9 -7.8 4.5 | 84 22 -21.6 -2.4 2 925 809 165 27 -7.0 26.1 | 133 28 -20.8 19.2 3 850 1476 160 27 -9.2 25.4 | 129 30 -23.0 18.5 4 700 2984 220 17 10.9 13.0 | 155 7 -2.9 6.1 5 500 5490 275 21 20.9 -1.8 | 321 11 7.1 -8.7 6 400 7070 265 21 20.9 1.8 | 305 9 7.1 -5.1 7 300 8980 280 29 28.6 -5.0 | 309 19 14.8 -11.9 8 250 10130 280 40 39.4 -6.9 | 298 29 25.6 -13.8 9 200 11470 280 50 49.2 -8.7 | 294 39 35.4 -15.6 10 198 11529 280 50 49.2 -8.7 | 294 39 35.4 -15.6 11 150 13190 290 36 33.8 -12.3 | 314 28 20.0 -19.2 12 100 15600 300 36 31.2 -18.0 | 325 30 17.4 -24.9 13 70 17720 295 35 31.7 -14.8 | 320 28 17.9 -21.7 Wind Parameters Mean winds (0-6000m): 213.4 at 20.6 knts Storm direction: 243.4 at 15.4 knts Shear (0-3000m) pos: 3.8 neg: 0.0 tot: 3.8 10-3/s Storm rel Dir Shear (0-3000m): 79.6 deg Storm rel helicity (0-3000m) pos: 211.2 neg: -13.7 tot: 197.4 m^2/s^2 ave: 65.8 10^-3 m/s^2 rel: 0.60 Storm rel vorticity (0-3000m) horiz: 9.0 stream: 5.4 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 0.53 Bulk Shear: 62.05 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 ------------------------------------------------------------------------------- 500 139 14 99 23| 16.0 0.0 16.0| 97.3 0.0 97.3 194.5 0.93| 16.6 15.5 1000 157 20 118 24| 11.7 0.0 11.7|157.3 -6.8 150.5 150.5 0.88| 13.1 11.5 1500 159 22 122 26| 7.6 0.0 7.6|168.3 -13.7 154.5 103.0 0.79| 10.0 7.9 2000 163 23 126 25| 5.7 0.0 5.7|197.9 -13.7 184.1 92.1 0.72| 9.8 7.1 2500 168 22 129 24| 4.6 0.0 4.6|209.1 -13.7 195.3 78.1 0.65| 9.5 6.2 3000 172 22 131 22| 3.8 0.0 3.8|211.2 -13.7 197.4 65.8 0.60| 9.0 5.4 4000 185 21 139 18| 3.3 0.0 3.3|217.5 -13.7 203.8 50.9 0.63| 7.6 4.8 5000 199 21 151 14| 3.0 0.0 3.0|225.3 -13.7 211.6 42.3 0.64| 6.9 4.4 6000 213 21 166 11| 2.6 0.1 2.7|229.6 -16.5 213.1 35.5 0.61| 6.1 3.7 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251208.00.gif