UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120100.upa.cvt Date: 0000Z 1 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 1 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 1004 112 1.6 0.4 92 1.2 1.1 180 3 274.4 275.1 274.0 285.1 3.92 1 1000 144 1.0 -0.4 90 1.4 0.4 185 3 274.1 274.8 273.6 284.2 3.71 2 972 372 0.0 -1.1 92 1.1 -0.4 207 11 275.4 276.0 274.2 285.3 3.63 3 950 556 1.8 1.2 96 0.6 1.5 224 17 279.0 279.8 277.2 291.1 4.39 4 925 770 0.8 -0.3 92 1.1 0.3 245 25 280.1 280.8 277.3 291.3 4.04 5 868 1279 -2.3 -4.0 88 1.7 -3.0 249 19 282.0 282.6 277.3 291.3 3.27 6 858 1371 -3.3 -6.7 77 3.4 -4.6 249 18 281.9 282.4 276.5 289.6 2.69 7 850 1445 -1.3 -9.3 54 8.0 -4.1 250 17 284.8 285.2 277.3 291.2 2.22 8 845 1492 -0.5 -11.5 43 11.0 -4.2 250 17 286.1 286.4 277.4 291.6 1.87 9 841 1530 -0.7 -12.7 40 12.0 -4.6 250 18 286.3 286.6 277.3 291.4 1.71 10 821 1722 -0.7 -4.4 76 3.7 -2.2 250 19 288.3 288.8 280.4 298.0 3.36 11 793 1999 -1.7 -5.7 74 4.0 -3.3 250 21 290.1 290.6 281.0 299.3 3.15 12 700 2978 -9.1 -12.7 75 3.6 -10.2 250 29 292.4 292.8 280.7 298.6 2.05 13 685 3145 -9.9 -13.8 73 3.9 -11.1 251 30 293.3 293.7 281.0 299.2 1.92 14 619 3919 -15.3 -24.3 46 9.0 -17.2 254 34 295.8 295.9 280.7 298.5 0.86 15 520 5215 -23.7 -25.4 86 1.7 -24.0 259 42 300.8 300.9 282.9 303.8 0.93 16 500 5500 -25.9 -28.0 82 2.1 -26.2 260 44 301.5 301.6 283.0 304.0 0.76 17 431 6560 -33.1 -36.8 69 3.7 -33.5 263 43 305.4 305.5 284.1 306.7 0.38 18 400 7080 -37.5 -41.2 68 3.7 -37.8 265 42 306.3 306.3 284.2 307.2 0.26 19 300 9000 -53.1 -56.7 65 3.6 -53.2 265 42 310.5 310.5 285.6 310.7 0.06 20 287 9282 -56.3 -59.7 65 3.4 -56.3 267 42 309.9 309.9 285.3 310.1 0.04 21 250 10140 -62.7 -66.2 63 3.5 -62.7 275 44 312.9 312.9 286.4 312.9 0.02 22 222 10865 -68.1 -71.7 60 3.6 -68.1 280 44 315.4 315.4 287.2 315.4 0.01 23 211 11173 -66.1 -69.6 61 3.5 -66.1 273 43 323.1 323.1 289.7 323.2 0.02 24 200 11500 -63.7 -67.5 60 3.8 -63.7 265 42 331.9 331.9 292.3 332.0 0.02 25 172 12429 -59.9 -63.8 60 3.9 -60.0 265 41 352.8 352.8 297.3 353.0 0.04 26 150 13280 -60.3 -64.3 59 4.0 -60.4 265 40 366.2 366.2 299.9 366.4 0.04 27 120 14673 -59.5 -64.2 54 4.7 -59.6 262 39 391.8 391.8 304.1 392.1 0.06 28 100 15810 -60.9 -65.9 52 5.0 -61.0 260 38 410.1 410.1 306.6 410.3 0.05 29 83 16961 -63.3 -69.3 44 6.0 -63.4 268 33 427.6 427.6 308.6 427.8 0.04 30 73 17752 -61.9 -67.9 45 6.0 -62.1 273 30 446.6 446.6 310.6 446.9 0.06 31 70 18010 -64.3 -70.3 44 6.0 -64.4 275 29 446.8 446.8 310.6 447.1 0.04 32 56 19364 -68.3 -74.3 42 6.0 -68.4 272 28 467.1 467.2 312.4 467.3 0.03 33 50 20050 -65.5 -72.5 37 7.0 -65.7 270 27 489.1 489.1 314.2 489.4 0.04 34 49 20173 -65.7 -72.7 37 7.0 -65.9 491.5 491.5 314.4 491.8 0.04 35 39 21548 -69.1 -76.1 36 7.0 -69.2 516.1 516.1 316.1 516.3 0.03 TRP 222 10865 -68.1 -71.7 60 3.6 -68.1 280 44 315.4 315.4 287.2 315.4 0.01 WND Sounding variables and indices 1000-500 mb thick: 5356.00 m Freezing level: 910.29 mb = 901.24 m = 2956.80 ft Wetbulb zero: 986.30 mb = 254.58 m = 835.23 ft Precipitable water: 0.51 inches Sfc-500 mean rel hum: 73.38 % Est. max temperature: 10.53 C = 50.95 F Sfc-Lift cond lev (LCL): 985.33 mb = 262.46 m = 861.09 ft T: 0.48 C 700-500 lapse rate: 6.66 C/km ThetaE index: 1.74 C Layer 868.0- 850.0 mb Conv cond level (CCL): 972.44 mb = 368.10 m = 1207.67 ft Mean mixing ratio: 3.94 g/kg Conv temperature: 2.52 C = 36.54 F Cap Strength: 11.14 C Lifted Index: 11.40 C Risk: None Lifted Index @300 mb: 15.55 C Lifted Index @700 mb: 7.46 C Showalter Index: 9.41 C Risk: None Total Totals Index: 41.20 C Risk: None Vertical Totals Index: 24.60 C Cross Totals Index: 16.60 C K Index: 11.70 Risk: None Sweat Index: 124.71 Risk: None Energy Index: 2.68 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 31.85 J/kg Max Up Vert Vel: 7.98 m/s Conv Inhibition (B-): 30212.80 J/kg Cap Strength: 11.28 C Lift Cond Lev (LCL): 937.27 mb = 664.06 m = 2178.66 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 284 at 22 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 1004 112 180 3 0.0 3.0 | 111 23 -21.6 8.5 1 1000 144 185 3 0.3 3.0 | 112 23 -21.4 8.4 2 925 770 245 25 22.7 10.6 | 184 16 1.0 16.0 3 850 1445 250 17 16.0 5.8 | 153 13 -5.7 11.3 4 700 2978 250 29 27.3 9.9 | 200 16 5.6 15.4 5 500 5500 260 44 43.3 7.6 | 239 25 21.7 13.1 6 400 7080 265 42 41.8 3.7 | 246 22 20.2 9.1 7 300 9000 265 42 41.8 3.7 | 246 22 20.2 9.1 8 250 10140 275 44 43.8 -3.8 | 266 22 22.2 1.6 9 222 10865 280 44 43.3 -7.6 | 276 22 21.7 -2.2 10 200 11500 265 42 41.8 3.7 | 246 22 20.2 9.1 11 150 13280 265 40 39.8 3.5 | 244 20 18.2 8.9 12 100 15810 260 38 37.4 6.6 | 233 20 15.8 12.1 13 70 18010 275 29 28.9 -2.5 | 248 8 7.3 2.9 14 50 20050 270 27 27.0 -0.0 | 225 8 5.4 5.5 Wind Parameters Mean winds (0-6000m): 254.1 at 29.8 knts Storm direction: 284.1 at 22.3 knts Shear (0-3000m) pos: 3.6 neg: 1.3 tot: 5.0 10-3/s Storm rel Dir Shear (0-3000m): 91.4 deg Storm rel helicity (0-3000m) pos: 180.5 neg: -23.6 tot: 156.9 m^2/s^2 ave: 52.3 10^-3 m/s^2 rel: 0.65 Storm rel vorticity (0-3000m) horiz: 8.0 stream: 5.2 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.53 Bulk Shear: 59.83 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 ------------------------------------------------------------------------------- 500 224 11 133 19| 18.2 0.0 18.2|106.3 0.0 106.3 212.5 0.97| 19.5 18.9 1000 242 17 153 15| 10.3 0.0 10.3|138.7 -11.7 127.0 127.0 0.73| 15.7 11.5 1500 245 17 155 14| 6.0 0.0 6.0|141.7 -23.6 118.0 78.7 0.56| 12.0 6.8 2000 246 18 158 14| 4.5 1.0 5.5|154.7 -23.6 131.0 65.5 0.61| 10.0 6.1 2500 247 19 163 14| 3.6 1.6 5.2|167.6 -23.6 144.0 57.6 0.63| 8.8 5.6 3000 248 21 170 13| 3.6 1.3 5.0|180.5 -23.6 156.9 52.3 0.65| 8.0 5.2 4000 250 24 182 14| 3.5 1.0 4.5|207.3 -23.6 183.6 45.9 0.68| 6.8 4.6 5000 252 27 196 14| 3.5 0.8 4.3|237.0 -23.6 213.4 42.7 0.69| 6.1 4.2 6000 254 30 207 15| 3.0 0.7 3.7|256.9 -23.6 233.2 38.9 0.69| 5.5 3.8 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251201.00.gif