UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120700.upa.cvt Date: 0000Z 7 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 7 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 1012 113 0.0 -1.8 88 1.8 -0.7 90 9 272.2 272.8 271.8 281.2 3.31 1 1000 208 -1.1 -3.0 87 1.9 -1.8 90 11 272.0 272.6 271.4 280.3 3.06 2 925 826 -4.7 -6.1 90 1.4 -5.2 110 21 274.5 274.9 272.2 281.7 2.62 3 911 946 -5.5 -6.9 90 1.4 -6.0 113 20 274.9 275.3 272.2 281.8 2.50 4 906 989 -4.9 -6.4 89 1.5 -5.4 114 19 275.9 276.4 273.0 283.2 2.61 5 872 1290 -3.9 -9.9 63 6.0 -5.8 120 15 280.0 280.4 274.5 285.9 2.06 6 850 1491 -5.5 -12.5 58 7.0 -7.6 125 13 280.4 280.7 274.2 285.4 1.72 7 845 1537 -5.9 -12.9 58 7.0 -7.9 128 13 280.4 280.7 274.2 285.3 1.67 8 832 1659 -5.3 -12.3 58 7.0 -7.4 137 12 282.3 282.6 275.3 287.5 1.78 9 813 1840 -6.3 -14.3 53 8.0 -8.6 150 11 283.1 283.4 275.5 287.7 1.55 10 750 2468 -9.3 -13.0 74 3.7 -10.4 196 7 286.5 286.8 277.7 292.0 1.87 11 731 2667 -9.9 -18.9 48 9.0 -12.2 210 5 287.9 288.1 277.4 291.5 1.17 12 719 2794 -10.7 -22.7 37 12.0 -13.3 220 4 288.4 288.6 277.2 291.1 0.86 13 700 3000 -12.1 -19.1 56 7.0 -13.8 235 3 289.1 289.3 278.0 292.8 1.21 14 618 3939 -18.5 -21.8 75 3.3 -19.2 254 7 292.2 292.4 279.4 295.6 1.08 15 598 4183 -20.3 -23.7 74 3.4 -21.0 258 9 292.9 293.1 279.5 295.9 0.94 16 528 5096 -24.5 -27.8 74 3.3 -25.1 277 13 298.5 298.6 281.7 300.9 0.74 17 500 5490 -27.3 -30.5 74 3.2 -27.8 285 15 299.8 299.9 282.1 301.7 0.60 18 462 6055 -30.7 -33.7 75 3.0 -31.0 285 18 302.4 302.5 283.0 304.0 0.48 19 400 7060 -39.1 -42.1 73 3.0 -39.3 285 23 304.2 304.2 283.4 305.0 0.24 20 329 8366 -49.7 -52.9 69 3.2 -49.8 278 32 307.1 307.1 284.3 307.4 0.09 21 300 8960 -55.7 -58.9 67 3.2 -55.8 275 36 306.8 306.8 284.2 307.0 0.05 22 252 10042 -65.9 -69.3 62 3.4 -65.9 265 36 307.4 307.4 284.4 307.4 0.01 23 250 10090 -65.7 -69.2 62 3.5 -65.7 265 38 308.4 308.4 284.7 308.4 0.01 24 238 10390 -64.7 -68.3 61 3.6 -64.7 268 40 314.3 314.3 286.9 314.3 0.02 25 200 11450 -65.9 -69.4 61 3.5 -65.9 280 48 328.4 328.4 291.3 328.5 0.02 26 160 12807 -64.5 -68.4 59 3.9 -64.6 288 42 352.4 352.4 297.2 352.5 0.02 27 150 13200 -65.9 -69.6 60 3.7 -66.0 290 40 356.6 356.6 298.0 356.7 0.02 28 100 15650 -68.3 -72.8 52 4.5 -68.4 275 31 395.8 395.8 304.6 395.9 0.02 29 73 17530 -70.1 -74.7 51 4.6 -70.2 429.2 429.2 308.7 429.3 0.02 TRP 252 10042 -65.9 -69.3 62 3.4 -65.9 265 36 307.4 307.4 284.4 307.4 0.01 WND Sounding variables and indices 1000-500 mb thick: 5282.00 m Freezing level: 1012.00 mb = 112.75 m = 369.92 ft Wetbulb zero: Below ground Precipitable water: 0.36 inches Sfc-500 mean rel hum: 69.93 % Est. max temperature: 7.99 C = 46.37 F Sfc-Lift cond lev (LCL): 983.86 mb = 337.02 m = 1105.70 ft T: -1.85 C 700-500 lapse rate: 6.10 C/km ThetaE index: 0.93 C Layer 731.0- 700.0 mb Conv cond level (CCL): 916.91 mb = 895.01 m = 2936.33 ft Mean mixing ratio: 2.84 g/kg Conv temperature: 2.51 C = 36.52 F Cap Strength: 15.09 C Lifted Index: 15.75 C Risk: None Lifted Index @300 mb: 18.23 C Lifted Index @700 mb: 9.74 C Showalter Index: 12.47 C Risk: None Total Totals Index: 36.60 C Risk: None Vertical Totals Index: 21.80 C Cross Totals Index: 14.80 C K Index: 2.30 Risk: None Sweat Index: 41.00 Risk: None Energy Index: 3.43 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.04 J/kg Max Up Vert Vel: 4.25 m/s Conv Inhibition (B-): 20891.16 J/kg Cap Strength: 15.60 C Lift Cond Lev (LCL): 936.60 mb = 727.21 m = 2385.84 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 246 at 8 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 1012 113 90 9 -9.0 0.0 | 78 17 -16.6 -3.4 1 1000 208 90 11 -11.0 0.0 | 80 19 -18.6 -3.4 2 925 826 110 21 -19.7 7.2 | 98 28 -27.3 3.8 3 850 1491 125 13 -10.6 7.5 | 103 19 -18.3 4.1 4 700 3000 235 3 2.5 1.7 | 72 5 -5.2 -1.7 5 500 5490 285 15 14.5 -3.9 | 317 10 6.9 -7.3 6 400 7060 285 23 22.2 -6.0 | 303 17 14.6 -9.3 7 300 8960 275 36 35.9 -3.1 | 283 29 28.2 -6.5 8 252 10042 265 36 35.9 3.1 | 271 28 28.2 -0.3 9 250 10090 265 38 37.9 3.3 | 270 30 30.2 -0.1 10 200 11450 280 48 47.3 -8.3 | 286 41 39.7 -11.7 11 150 13200 290 40 37.6 -13.7 | 300 34 30.0 -17.1 12 100 15650 275 31 30.9 -2.7 | 285 24 23.3 -6.1 Wind Parameters Mean winds (0-6000m): 216.0 at 11.1 knts Storm direction: 246.0 at 8.3 knts Shear (0-3000m) pos: 2.1 neg: 0.0 tot: 2.1 10-3/s Storm rel Dir Shear (0-3000m): -6.1 deg Storm rel helicity (0-3000m) pos: 81.2 neg: -6.7 tot: 74.5 m^2/s^2 ave: 24.8 10^-3 m/s^2 rel: 0.24 Storm rel vorticity (0-3000m) horiz: 7.1 stream: 1.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.15 Bulk Shear: 59.55 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 97 13 85 21| 9.3 0.0 9.3| 27.7 0.0 27.7 55.5 0.52| 9.6 5.0 1000 106 16 93 23| 5.3 0.0 5.3| 57.1 0.0 57.1 57.1 0.53| 8.9 4.7 1500 110 16 95 23| 2.9 0.0 2.9| 68.0 0.0 68.0 45.3 0.46| 8.3 3.9 2000 116 15 98 21| 3.0 0.0 3.0| 80.8 0.0 80.8 40.4 0.46| 8.2 3.7 2500 119 13 99 19| 2.6 0.0 2.6| 81.1 -2.6 78.5 31.4 0.35| 7.7 2.7 3000 118 12 97 18| 2.1 0.0 2.1| 81.2 -6.7 74.5 24.8 0.24| 7.1 1.7 4000 127 10 100 16| 2.2 0.0 2.2| 81.2 -8.1 73.1 18.3 0.16| 6.0 0.9 5000 145 10 110 14| 2.3 0.0 2.3| 81.4 -8.9 72.5 14.5 0.12| 5.4 0.6 6000 216 11 169 6| 2.1 0.2 2.3| 82.6 -13.2 69.4 11.6 0.09| 5.0 0.5 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251207.00.gif