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 U3921... Searching the city database file for: U3921 ... Date:0000Z 7 DEC 25 Station: U3921 WMO ident: 23921 Latitude: 60.68 Longitude: 60.43 ------------------------------------------------------------------------------- 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 1022 95 -21.3 -24.2 77 2.9 -21.7 15 3 250.3 250.4 250.1 251.7 0.53 1 1000 255 -23.1 -26.9 71 3.8 -23.5 10 5 250.1 250.1 249.7 251.2 0.42 2 990 329 -23.5 -27.2 72 3.7 -23.9 20 6 250.4 250.4 249.9 251.5 0.41 3 925 829 -19.3 -22.3 77 3.0 -19.7 85 13 259.6 259.7 258.3 261.5 0.69 4 911 943 -18.5 -21.4 78 2.9 -19.0 90 13 261.5 261.7 259.9 263.6 0.76 5 850 1461 -17.7 -20.4 79 2.7 -18.2 115 11 267.6 267.7 264.7 270.1 0.89 6 786 2047 -16.7 -19.3 80 2.6 -17.2 184 13 274.7 274.9 269.8 277.8 1.05 7 704 2868 -20.7 -23.5 78 2.8 -21.2 280 17 279.1 279.2 272.1 281.5 0.82 8 700 2910 -20.9 -23.7 78 2.8 -21.4 285 17 279.3 279.5 272.2 281.7 0.81 9 652 3430 -25.1 -28.1 76 3.0 -25.5 285 21 280.3 280.4 272.3 282.1 0.58 10 579 4286 -28.5 -31.5 75 3.0 -28.9 285 29 286.0 286.1 275.4 287.5 0.47 11 500 5320 -35.9 -38.9 74 3.0 -36.1 285 38 289.3 289.3 276.7 290.1 0.26 12 495 5390 -36.3 -39.3 74 3.0 -36.5 285 38 289.6 289.7 276.9 290.5 0.26 13 400 6830 -49.5 -52.7 69 3.2 -49.6 285 48 290.7 290.7 277.1 290.9 0.07 14 372 7302 -51.5 -54.6 69 3.1 -51.6 286 52 294.1 294.1 278.8 294.3 0.06 15 300 8680 -56.5 -59.7 67 3.2 -56.6 290 64 305.7 305.7 283.7 305.9 0.04 16 281 9091 -58.2 -61.6 65 3.4 -58.2 290 66 309.1 309.1 285.0 309.2 0.03 17 269 9364 -59.3 -62.8 64 3.5 -59.3 285 66 311.3 311.3 285.8 311.4 0.03 18 250 9820 -59.5 -63.1 63 3.6 -59.6 290 58 317.6 317.6 288.0 317.7 0.03 19 222 10565 -59.7 -63.3 63 3.6 -59.7 293 51 328.3 328.3 291.3 328.4 0.03 20 200 11220 -58.5 -62.2 62 3.7 -58.6 295 44 340.1 340.1 294.4 340.3 0.04 21 150 13020 -58.9 -62.8 61 3.9 -59.0 295 42 368.6 368.6 300.4 368.9 0.05 22 100 15550 -61.3 -65.0 61 3.7 -61.4 290 42 409.3 409.3 306.5 409.6 0.06 23 94 15933 -61.5 -65.2 61 3.7 -61.6 290 42 416.2 416.2 307.3 416.5 0.06 24 70 17740 -65.7 -69.6 58 3.9 -65.8 290 40 443.8 443.8 310.3 444.1 0.05 25 50 19750 -71.3 -75.0 58 3.7 -71.3 280 44 475.5 475.5 313.1 475.6 0.03 26 30 22720 -77.9 -82.1 51 4.2 -78.0 280 48 532.3 532.3 317.1 532.4 0.02 27 29 22914 -78.3 -82.5 50 4.2 -78.3 536.4 536.4 317.3 536.5 0.02 TRP 269 9364 -59.3 -62.8 64 3.5 -59.3 285 66 311.3 311.3 285.8 311.4 0.03 WND 281 9091 -58.2 -61.6 65 3.4 -58.2 290 66 309.1 309.1 285.0 309.2 0.03 Sounding variables and indices 1000-500 mb thick: 5065.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.16 inches Sfc-500 mean rel hum: 76.69 % Est. max temperature: -6.14 C = 20.94 F Sfc-Lift cond lev (LCL): 974.09 mb = 447.92 m = 1469.52 ft T: -22.50 C 700-500 lapse rate: 6.22 C/km ThetaE index: 0.51 C Layer 1000.0- 990.0 mb Conv cond level (CCL): 552.62 mb = 4614.56 m = 15139.46 ft Mean mixing ratio: 0.53 g/kg Conv temperature: 15.73 C = 60.31 F Cap Strength: 26.56 C Lifted Index: 28.06 C Risk: None Lifted Index @300 mb: 35.88 C Lifted Index @700 mb: 22.21 C Showalter Index: 15.88 C Risk: None Total Totals Index: 33.70 C Risk: None Vertical Totals Index: 18.20 C Cross Totals Index: 15.50 C K Index: -5.00 Risk: None Sweat Index: 60.00 Risk: None Energy Index: 4.26 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 31.66 J/kg Max Up Vert Vel: 7.96 m/s Conv Inhibition (B-): 49872.35 J/kg Cap Strength: 28.07 C Lift Cond Lev (LCL): 921.78 mb = 854.99 m = 2805.05 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 317 at 17 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 1022 95 15 3 -0.8 -2.9 | 127 15 -12.1 9.1 1 1000 255 10 5 -0.9 -4.9 | 120 14 -12.2 7.1 2 925 829 85 13 -13.0 -1.1 | 114 27 -24.3 10.9 3 850 1461 115 11 -10.0 4.6 | 128 27 -21.3 16.7 4 700 2910 285 17 16.4 -4.4 | 214 9 5.1 7.6 5 500 5320 285 38 36.7 -9.8 | 265 25 25.3 2.2 6 400 6830 285 48 46.4 -12.4 | 271 35 35.0 -0.4 7 300 8680 290 64 60.1 -21.9 | 281 50 48.8 -9.8 8 281 9091 290 66 62.0 -22.6 | 282 52 50.7 -10.5 9 269 9364 285 66 63.8 -17.1 | 275 53 52.4 -5.0 10 250 9820 290 58 54.5 -19.8 | 280 44 43.1 -7.8 11 200 11220 295 44 39.9 -18.6 | 283 29 28.5 -6.6 12 150 13020 295 42 38.1 -17.7 | 282 27 26.7 -5.7 13 100 15550 290 42 39.5 -14.4 | 275 28 28.1 -2.3 14 70 17740 290 40 37.6 -13.7 | 274 26 26.2 -1.6 15 50 19750 280 44 43.3 -7.6 | 262 32 32.0 4.4 16 30 22720 280 48 47.3 -8.3 | 264 36 35.9 3.7 Wind Parameters Mean winds (0-6000m): 286.7 at 22.1 knts Storm direction: 316.7 at 16.6 knts Shear (0-3000m) pos: 3.2 neg: 0.0 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 95.5 deg Storm rel helicity (0-3000m) pos: 278.4 neg: -20.3 tot: 258.1 m^2/s^2 ave: 86.0 10^-3 m/s^2 rel: 0.59 Storm rel vorticity (0-3000m) horiz: 11.3 stream: 6.7 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 0.39 Bulk Shear: 80.42 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 34 6 115 16| 7.9 0.0 7.9| 0.0 -20.3 -20.3 -40.5 -0.54| 9.6 -5.1 1000 72 9 115 22| 6.2 0.0 6.2| 35.9 -20.3 15.7 15.7 0.02| 9.7 0.2 1500 88 10 119 24| 4.5 0.0 4.5| 84.2 -20.3 64.0 42.7 0.27| 8.8 2.4 2000 107 11 125 26| 4.3 0.0 4.3|179.7 -20.3 159.4 79.7 0.51| 10.0 5.1 2500 117 11 129 28| 3.6 0.0 3.6|254.1 -20.3 233.9 93.6 0.59| 11.1 6.6 3000 64 12 107 23| 3.2 0.0 3.2|278.4 -20.3 258.1 86.0 0.59| 11.3 6.7 4000 293 15 200 7| 2.4 1.1 3.5|298.4 -20.3 278.1 69.5 0.60| 9.6 5.8 5000 288 18 224 9| 1.9 1.8 3.7|318.4 -20.3 298.2 59.6 0.59| 8.6 5.0 6000 287 22 240 11| 1.6 2.1 3.7|334.8 -20.3 314.5 52.4 0.57| 7.7 4.4 Wrote GIF file: /home/apache/climate/data/raob//U3921/skewt/U3921.skewt.20251207.00.gif