UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041600.upa.cvt Date: 0000Z 16 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 16 APR 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 111 0.8 -4.2 69 5.0 -1.0 315 1 273.1 273.6 271.5 280.7 2.76 1 1005 159 8.0 2.0 66 6.0 5.2 334 2 280.7 281.5 278.1 292.9 4.39 2 1000 200 7.8 1.8 66 6.0 5.0 350 3 281.0 281.7 278.2 293.0 4.35 3 925 840 4.4 -5.6 48 10.0 0.5 360 5 283.8 284.3 277.4 291.6 2.72 4 897 1090 3.4 -6.6 48 10.0 -0.4 340 9 285.3 285.7 278.0 292.8 2.60 5 856 1467 0.2 -9.8 47 10.0 -3.3 310 14 285.8 286.1 277.6 292.0 2.12 6 850 1523 0.2 -9.8 47 10.0 -3.3 305 15 286.4 286.7 278.0 292.6 2.13 7 818 1830 0.4 -12.6 37 13.0 -4.0 303 17 289.7 290.0 279.1 295.0 1.77 8 792 2088 -1.7 -15.7 33 14.0 -6.0 301 19 290.2 290.4 278.9 294.5 1.42 9 737 2657 -5.5 -19.5 32 14.0 -9.2 298 24 292.1 292.3 279.3 295.5 1.11 10 700 3059 -7.3 -20.3 35 13.0 -10.7 295 27 294.4 294.6 280.4 297.8 1.09 11 660 3513 -9.7 -22.7 34 13.0 -12.8 294 31 296.7 296.9 281.2 299.7 0.93 12 550 4886 -20.5 -37.5 20 17.0 -22.7 291 42 299.8 299.8 281.6 300.7 0.28 13 500 5580 -27.3 -43.3 20 16.0 -28.7 290 48 299.8 299.8 281.5 300.3 0.17 14 486 5784 -28.7 -43.7 22 15.0 -30.0 291 49 300.5 300.5 281.8 301.1 0.16 15 429 6671 -32.7 -44.7 29 12.0 -33.6 297 53 306.3 306.3 284.1 306.9 0.17 16 400 7160 -36.9 -48.9 28 12.0 -37.6 300 56 307.0 307.1 284.4 307.4 0.11 17 330 8459 -48.7 -61.7 21 13.0 -49.0 303 61 308.2 308.2 284.7 308.3 0.03 18 300 9080 -53.3 -67.3 17 14.0 -53.5 305 64 310.2 310.2 285.4 310.3 0.01 19 289 9319 -54.7 -68.7 16 14.0 -54.9 303 66 311.6 311.6 285.9 311.6 0.01 20 280 9520 -57.3 -71.3 15 14.0 -57.4 302 67 310.6 310.6 285.5 310.7 0.01 21 265 9865 -58.9 -72.9 15 14.0 -59.0 300 69 313.2 313.2 286.5 313.3 0.01 22 259 10009 -58.8 -72.8 15 14.0 -58.9 300 71 315.4 315.4 287.2 315.4 0.01 23 250 10230 -58.7 -72.7 15 14.0 -58.8 305 69 318.8 318.8 288.3 318.8 0.01 24 245 10357 -58.7 -72.7 15 14.0 -58.8 304 67 320.6 320.6 288.9 320.7 0.01 25 200 11650 -52.5 -66.5 17 14.0 -52.8 295 52 349.6 349.6 296.5 349.7 0.02 26 193 11880 -51.5 -65.5 17 14.0 -51.8 294 50 354.8 354.8 297.7 354.9 0.03 27 150 13510 -51.9 -66.9 15 15.0 -52.4 290 36 380.6 380.7 302.3 380.8 0.03 28 100 16140 -52.1 -69.1 11 17.0 -52.8 280 25 427.1 427.1 308.5 427.2 0.03 29 70 18450 -50.9 -68.9 10 18.0 -52.0 290 21 475.5 475.5 313.1 475.8 0.05 30 50 20640 -51.5 -71.5 7 20.0 -52.9 290 9 522.1 522.1 316.5 522.4 0.05 31 42 21770 -52.1 -73.1 6 21.0 -53.6 239 8 547.3 547.3 317.9 547.6 0.05 32 30 23960 -49.9 -71.9 6 22.0 -52.4 140 5 608.6 608.6 321.0 609.2 0.08 33 23 25697 -48.7 -71.7 5 23.0 -52.0 124 17 660.2 660.2 323.1 661.0 0.10 34 20 26610 -50.7 -72.7 6 22.0 -53.8 115 23 681.0 681.0 323.9 681.9 0.10 35 15 28479 -52.1 -74.1 5 22.0 -55.5 734.7 734.8 325.6 735.7 0.11 TRP 265 9865 -58.9 -72.9 15 14.0 -59.0 300 69 313.2 313.2 286.5 313.3 0.01 WND 259 10009 -58.8 -72.8 15 14.0 -58.9 300 71 315.4 315.4 287.2 315.4 0.01 Sounding variables and indices 1000-500 mb thick: 5380.00 m Freezing level: 813.05 mb = 1879.50 m = 6166.26 ft Wetbulb zero: Below ground Precipitable water: 0.34 inches Sfc-500 mean rel hum: 35.39 % Est. max temperature: 13.47 C = 56.24 F Sfc-Lift cond lev (LCL): 935.18 mb = 750.19 m = 2461.21 ft T: 4.88 C 700-500 lapse rate: 7.93 C/km ThetaE index: 1.44 C Layer 925.0- 897.0 mb Conv cond level (CCL): 737.64 mb = 2649.62 m = 8692.87 ft Mean mixing ratio: 3.45 g/kg Conv temperature: 19.80 C = 67.64 F Cap Strength: 8.25 C Lifted Index: 7.43 C Risk: None Lifted Index @300 mb: 12.95 C Lifted Index @700 mb: 6.98 C Showalter Index: 6.96 C Risk: None Total Totals Index: 45.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.50 C Cross Totals Index: 17.50 C K Index: 4.70 Risk: None Sweat Index: 78.00 Risk: None Energy Index: 1.69 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 11.09 J/kg Max Up Vert Vel: 4.71 m/s Conv Inhibition (B-): 53973.75 J/kg Cap Strength: 8.25 C Lift Cond Lev (LCL): 851.64 mb = 1507.54 m = 4945.95 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 325 at 21 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 111 315 1 0.7 -0.7 | 145 20 -11.2 16.2 1 1000 200 350 3 0.5 -3.0 | 141 18 -11.4 13.9 2 925 840 360 5 -0.0 -5.0 | 135 17 -11.9 11.9 3 850 1523 305 15 12.3 -8.6 | 183 8 0.4 8.3 4 700 3059 295 27 24.5 -11.4 | 246 14 12.6 5.5 5 500 5580 290 48 45.1 -16.4 | 269 33 33.2 0.5 6 400 7160 300 56 48.5 -28.0 | 287 38 36.6 -11.1 7 300 9080 305 64 52.4 -36.7 | 296 45 40.5 -19.8 8 265 9865 300 69 59.8 -34.5 | 290 51 47.9 -17.6 9 259 10009 300 71 61.5 -35.5 | 291 53 49.6 -18.6 10 250 10230 305 69 56.5 -39.6 | 297 50 44.6 -22.7 11 200 11650 295 52 47.1 -22.0 | 278 36 35.2 -5.1 12 150 13510 290 36 33.8 -12.3 | 258 22 21.9 4.6 13 100 16140 280 25 24.6 -4.3 | 225 18 12.7 12.5 14 70 18450 290 21 19.7 -7.2 | 219 12 7.8 9.7 15 50 20640 290 9 8.5 -3.1 | 166 14 -3.4 13.8 16 30 23960 140 5 -3.2 3.8 | 144 26 -15.1 20.7 17 20 26610 115 23 -20.8 9.7 | 129 42 -32.7 26.6 Wind Parameters Mean winds (0-6000m): 294.8 at 27.5 knts Storm direction: 324.8 at 20.7 knts Shear (0-3000m) pos: 0.6 neg: 4.4 tot: 5.0 10-3/s Storm rel Dir Shear (0-3000m): 102.3 deg Storm rel helicity (0-3000m) pos: 43.7 neg: -17.1 tot: 26.6 m^2/s^2 ave: 8.9 10^-3 m/s^2 rel: 0.46 Storm rel vorticity (0-3000m) horiz: 5.4 stream: 2.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.12 Bulk Shear: 88.79 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 ------------------------------------------------------------------------------- 500 352 3 140 18| 3.7 0.0 3.7| 0.0 -12.3 -12.3 -24.7 -0.71| 3.7 -2.6 1000 352 5 138 17| 1.8 2.6 4.5| 1.2 -17.1 -16.0 -16.0 -0.36| 4.7 -1.7 1500 326 7 144 13| 1.2 4.6 5.9| 19.4 -17.1 2.3 1.5 0.24| 6.5 1.6 2000 315 10 154 11| 0.9 4.5 5.4| 27.8 -17.1 10.7 5.3 0.37| 5.9 2.2 2500 309 12 166 10| 0.7 4.4 5.2| 36.0 -17.1 18.9 7.5 0.44| 5.6 2.5 3000 304 15 180 9| 0.6 4.4 5.0| 43.7 -17.1 26.6 8.9 0.46| 5.4 2.5 4000 300 19 210 9| 0.5 4.4 4.8| 63.0 -17.1 45.9 11.5 0.47| 5.1 2.4 5000 297 23 234 11| 0.4 4.4 4.7| 79.5 -17.1 62.3 12.5 0.44| 5.0 2.2 6000 295 28 248 14| 0.6 4.0 4.6|118.4 -17.1 101.2 16.9 0.45| 4.8 2.2 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250416.00.gif