UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120512.upa.cvt Date: 1200Z 5 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 5 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 1009 109 0.6 -1.1 88 1.7 -0.1 225 1 273.0 273.6 272.6 282.5 3.49 1 1000 181 -0.5 -2.5 86 2.0 -1.3 230 3 272.6 273.2 271.9 281.3 3.18 2 925 799 -4.7 -6.3 89 1.6 -5.3 270 17 274.5 274.9 272.1 281.6 2.58 3 908 945 -5.7 -7.1 90 1.4 -6.2 279 16 274.9 275.3 272.2 281.8 2.47 4 902 997 -3.5 -4.7 91 1.2 -4.0 282 15 277.7 278.2 274.6 286.0 2.99 5 889 1112 -2.1 -3.1 93 1.0 -2.5 289 14 280.3 280.9 276.6 289.9 3.42 6 884 1157 -2.1 -3.1 93 1.0 -2.5 291 14 280.8 281.4 276.9 290.4 3.44 7 850 1469 -2.3 -5.1 81 2.8 -3.4 310 11 283.7 284.3 277.9 292.5 3.07 8 847 1497 -2.3 -5.2 80 2.9 -3.4 310 11 284.0 284.6 278.0 292.8 3.06 9 772 2228 -5.9 -10.4 70 4.5 -7.4 305 11 287.8 288.2 278.8 294.4 2.24 10 740 2557 -8.7 -14.7 62 6.0 -10.4 303 11 288.2 288.5 278.2 293.2 1.65 11 700 2985 -12.3 -16.7 70 4.4 -13.5 300 11 288.9 289.1 278.3 293.3 1.48 12 694 3051 -13.1 -17.1 72 4.0 -14.1 300 11 288.7 288.9 278.2 293.0 1.44 13 654 3500 -14.7 -17.6 79 2.9 -15.4 298 13 291.8 292.1 279.7 296.3 1.47 14 595 4205 -21.7 -24.0 82 2.3 -22.1 295 15 291.7 291.9 278.9 294.6 0.92 15 585 4329 -20.9 -23.0 83 2.1 -21.3 295 15 294.1 294.2 280.1 297.3 1.03 16 582 4367 -21.1 -23.2 83 2.1 -21.5 295 15 294.3 294.4 280.2 297.4 1.01 17 552 4755 -23.3 -26.7 74 3.4 -23.9 293 17 296.1 296.3 280.7 298.6 0.78 18 500 5470 -28.9 -33.6 64 4.7 -29.5 290 19 297.8 297.9 281.0 299.3 0.45 19 481 5747 -31.3 -36.2 62 4.9 -31.8 293 19 298.2 298.2 281.1 299.4 0.36 20 400 7030 -41.3 -45.9 61 4.6 -41.5 305 21 301.3 301.3 282.1 301.9 0.16 21 329 8327 -51.3 -55.9 58 4.6 -51.4 308 21 304.9 304.9 283.4 305.1 0.06 22 300 8920 -55.5 -59.9 58 4.4 -55.6 310 21 307.1 307.1 284.3 307.3 0.04 23 275 9472 -58.7 -63.6 53 4.9 -58.7 312 21 310.2 310.2 285.4 310.3 0.03 24 250 10070 -59.5 -64.4 53 4.9 -59.6 315 21 317.6 317.6 288.0 317.7 0.03 25 242 10274 -59.7 -64.6 53 4.9 -59.7 315 23 320.3 320.3 288.9 320.4 0.03 26 232 10537 -61.3 -66.3 51 5.0 -61.4 315 25 321.7 321.7 289.3 321.8 0.02 27 225 10727 -61.7 -66.7 51 5.0 -61.7 309 25 324.0 324.0 290.0 324.0 0.02 28 213 11068 -60.1 -65.1 52 5.0 -60.2 298 25 331.6 331.6 292.2 331.7 0.03 29 200 11460 -61.3 -67.3 45 6.0 -61.4 285 25 335.7 335.7 293.3 335.8 0.02 30 150 13250 -60.1 -67.1 39 7.0 -60.2 275 29 366.5 366.5 299.9 366.7 0.03 31 133 13999 -60.1 -68.1 34 8.0 -60.3 271 31 379.4 379.4 302.2 379.5 0.03 32 100 15760 -63.7 -73.7 24 10.0 -63.8 260 35 404.7 404.7 305.8 404.7 0.02 33 94 16137 -64.5 -74.5 24 10.0 -64.6 262 35 410.3 410.3 306.6 410.4 0.02 34 85 16750 -64.5 -74.5 24 10.0 -64.7 265 35 422.3 422.3 308.0 422.4 0.02 35 70 17920 -68.7 -79.7 19 11.0 -68.8 270 36 437.4 437.4 309.6 437.5 0.01 36 50 19920 -72.3 -84.3 15 12.0 -72.4 270 35 473.1 473.1 312.9 473.1 0.01 37 30 22880 -79.3 -91.3 12 12.0 -79.4 265 42 528.5 528.5 316.8 528.5 0.00 38 23 24378 -82.1 -94.1 11 12.0 -82.1 561.9 561.9 318.8 562.0 0.00 TRP 232 10537 -61.3 -66.3 51 5.0 -61.4 315 25 321.7 321.7 289.3 321.8 0.02 WND Sounding variables and indices 1000-500 mb thick: 5289.00 m Freezing level: 1004.09 mb = 148.41 m = 486.90 ft Wetbulb zero: Below ground Precipitable water: 0.42 inches Sfc-500 mean rel hum: 77.30 % Est. max temperature: 10.52 C = 50.93 F Sfc-Lift cond lev (LCL): 982.52 mb = 320.83 m = 1052.58 ft T: -1.45 C 700-500 lapse rate: 6.68 C/km ThetaE index: 1.23 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 919.02 mb = 849.97 m = 2788.60 ft Mean mixing ratio: 2.86 g/kg Conv temperature: 2.21 C = 35.97 F Cap Strength: 13.13 C Lifted Index: 13.80 C Risk: None Lifted Index @300 mb: 18.13 C Lifted Index @700 mb: 9.24 C Showalter Index: 5.47 C Risk: None Total Totals Index: 50.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.60 C Cross Totals Index: 23.80 C K Index: 17.10 Risk: < 20 % chance of thunderstorms Sweat Index: 69.00 Risk: None Energy Index: 1.38 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.74 J/kg Max Up Vert Vel: 3.67 m/s Conv Inhibition (B-): 38863.08 J/kg Cap Strength: 13.78 C Lift Cond Lev (LCL): 932.46 mb = 735.31 m = 2412.39 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 323 at 10 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 1009 109 225 1 0.7 0.7 | 148 10 -5.5 8.9 1 1000 181 230 3 2.3 1.9 | 159 11 -3.9 10.1 2 925 799 270 17 17.0 -0.0 | 233 14 10.8 8.2 3 850 1469 310 11 8.4 -7.1 | 243 2 2.2 1.1 4 700 2985 300 11 9.5 -5.5 | 231 4 3.3 2.7 5 500 5470 290 19 17.9 -6.5 | 262 12 11.6 1.7 6 400 7030 305 21 17.2 -12.0 | 289 12 11.0 -3.8 7 300 8920 310 21 16.1 -13.5 | 298 11 9.9 -5.3 8 250 10070 315 21 14.8 -14.8 | 308 11 8.6 -6.6 9 232 10537 315 25 17.7 -17.7 | 310 15 11.5 -9.5 10 200 11460 285 25 24.1 -6.5 | 264 18 17.9 1.7 11 150 13250 275 29 28.9 -2.5 | 256 23 22.7 5.7 12 100 15760 260 35 34.5 6.1 | 243 32 28.3 14.3 13 70 17920 270 36 36.0 -0.0 | 255 31 29.8 8.2 14 50 19920 270 35 35.0 -0.0 | 254 30 28.8 8.2 15 30 22880 265 42 41.8 3.7 | 252 38 35.6 11.9 Wind Parameters Mean winds (0-6000m): 292.9 at 13.7 knts Storm direction: 322.9 at 10.3 knts Shear (0-3000m) pos: 1.9 neg: 0.3 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): 86.6 deg Storm rel helicity (0-3000m) pos: 62.2 neg: -0.8 tot: 61.4 m^2/s^2 ave: 20.5 10^-3 m/s^2 rel: 0.62 Storm rel vorticity (0-3000m) horiz: 5.4 stream: 3.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.55 Bulk Shear: 12.35 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 ------------------------------------------------------------------------------- 500 252 7 182 10| 12.2 0.0 12.2| 37.4 0.0 37.4 74.9 0.99| 12.9 12.7 1000 270 11 211 10| 7.1 0.0 7.1| 61.1 0.0 61.1 61.1 0.83| 12.1 10.1 1500 279 12 219 8| 3.8 0.0 3.8| 61.9 -0.3 61.6 41.1 0.67| 10.0 6.7 2000 286 11 223 7| 2.8 0.2 3.0| 61.9 -0.4 61.5 30.7 0.65| 7.7 5.0 2500 290 11 225 6| 2.3 0.3 2.5| 61.9 -0.6 61.2 24.5 0.63| 6.3 4.0 3000 292 11 227 6| 1.9 0.3 2.2| 62.2 -0.8 61.4 20.5 0.62| 5.4 3.3 4000 294 12 232 6| 1.4 0.6 2.0| 65.1 -0.8 64.3 16.1 0.61| 4.5 2.7 5000 293 13 239 6| 1.1 0.8 2.0| 67.2 -0.8 66.4 13.3 0.58| 3.9 2.3 6000 293 14 246 7| 1.0 0.8 1.8| 74.6 -0.8 73.8 12.3 0.59| 3.6 2.1 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251205.12.gif