UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120800.upa.cvt Date: 0000Z 8 DEC 25 Searching for U3921... Searching the city database file for: U3921 ... Date:0000Z 8 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 1028 94 -28.9 -32.3 72 3.4 -29.1 0 0 242.3 242.4 242.2 243.0 0.25 1 1023 129 -25.9 -29.8 70 3.9 -26.2 2 1 245.6 245.7 245.5 246.5 0.32 2 1021 143 -21.7 -25.8 69 4.1 -22.1 2 1 250.0 250.0 249.7 251.2 0.46 3 1000 295 -21.5 -25.3 71 3.8 -22.0 10 5 251.6 251.7 251.2 253.0 0.49 4 990 369 -21.5 -25.2 72 3.7 -21.9 16 6 252.4 252.5 251.9 253.7 0.50 5 967 543 -19.7 -23.5 72 3.8 -20.2 29 8 255.9 256.0 255.1 257.5 0.59 6 925 872 -21.5 -24.9 74 3.4 -21.9 55 11 257.3 257.4 256.1 258.8 0.55 7 916 944 -21.7 -25.1 74 3.4 -22.1 58 12 257.8 257.9 256.6 259.3 0.54 8 906 1026 -19.3 -22.9 73 3.6 -19.8 62 12 261.1 261.2 259.5 263.0 0.67 9 872 1310 -20.1 -23.6 74 3.5 -20.6 76 15 263.2 263.3 261.0 265.0 0.65 10 850 1500 -19.3 -22.9 73 3.6 -19.8 85 17 265.9 266.0 263.2 267.9 0.71 11 838 1606 -18.3 -21.9 73 3.6 -18.9 85 17 268.1 268.2 264.8 270.3 0.79 12 798 1969 -19.5 -23.4 71 3.9 -20.1 85 16 270.6 270.7 266.5 272.7 0.73 13 746 2468 -20.7 -32.7 33 12.0 -22.1 85 16 274.5 274.6 268.4 275.5 0.33 14 731 2618 -21.7 -35.7 27 14.0 -23.1 85 15 275.0 275.1 268.5 275.8 0.25 15 700 2935 -23.9 -39.9 21 16.0 -25.3 85 15 276.0 276.0 269.0 276.6 0.17 16 590 4167 -30.9 -48.9 15 18.0 -31.9 72 15 281.7 281.7 272.3 282.0 0.08 17 500 5320 -40.3 -57.3 15 17.0 -40.8 60 15 283.9 283.9 273.5 284.0 0.03 18 450 6027 -45.7 -61.7 15 16.0 -46.0 67 22 285.8 285.8 274.5 285.9 0.02 19 400 6800 -50.3 -64.3 18 14.0 -50.5 75 29 289.6 289.6 276.5 289.7 0.02 20 329 8052 -58.3 -70.3 20 12.0 -58.4 58 28 295.3 295.3 279.2 295.3 0.01 21 300 8630 -59.7 -71.7 20 12.0 -59.8 50 27 301.2 301.2 281.8 301.2 0.01 22 292 8799 -60.3 -72.3 19 12.0 -60.4 45 25 302.7 302.7 282.5 302.7 0.01 23 262 9477 -60.7 -72.7 19 12.0 -60.8 24 21 311.6 311.6 285.9 311.6 0.01 24 250 9770 -60.1 -72.1 19 12.0 -60.2 15 19 316.7 316.7 287.7 316.8 0.01 25 235 10155 -59.1 -70.1 23 11.0 -59.2 4 20 323.9 323.9 289.9 323.9 0.01 26 200 11160 -59.7 -71.7 20 12.0 -59.8 335 23 338.2 338.2 293.9 338.3 0.01 27 170 12179 -59.5 -71.5 20 12.0 -59.6 327 23 354.6 354.6 297.6 354.7 0.01 28 150 12960 -61.7 -74.7 16 13.0 -61.9 320 23 363.8 363.8 299.4 363.8 0.01 29 100 15450 -65.3 -79.3 13 14.0 -65.4 300 29 401.6 401.6 305.4 401.6 0.01 30 81 16726 -67.5 -81.5 12 14.0 -67.6 422.0 422.0 307.9 422.0 0.01 TRP 292 8799 -60.3 -72.3 19 12.0 -60.4 45 25 302.7 302.7 282.5 302.7 0.01 WND Sounding variables and indices 1000-500 mb thick: 5025.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.08 inches Sfc-500 mean rel hum: 40.49 % Est. max temperature: -8.27 C = 17.11 F Sfc-Lift cond lev (LCL): 970.61 mb = 515.63 m = 1691.67 ft T: -19.99 C 700-500 lapse rate: 6.88 C/km ThetaE index: 0.00 C Layer 1028.0- 0.0 mb Conv cond level (CCL): 1023.00 mb = 129.19 m = 423.84 ft Mean mixing ratio: 0.52 g/kg Conv temperature: -23.99 C = -11.18 F Cap Strength: 23.05 C Lifted Index: 23.72 C Risk: None Lifted Index @300 mb: 32.68 C Lifted Index @700 mb: 19.26 C Showalter Index: 13.23 C Risk: None Total Totals Index: 38.40 C Risk: None Vertical Totals Index: 21.00 C Cross Totals Index: 17.40 C K Index: -17.90 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 3.47 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 38.03 J/kg Max Up Vert Vel: 8.72 m/s Conv Inhibition (B-): 27429.66 J/kg Cap Strength: 23.67 C Lift Cond Lev (LCL): 919.92 mb = 912.62 m = 2994.12 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 103 at 11 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 1028 94 0 0 -0.0 -0.0 | 283 11 10.6 -2.4 1 1000 295 10 5 -0.9 -4.9 | 307 12 9.8 -7.3 2 925 872 55 11 -9.0 -6.3 | 349 9 1.6 -8.7 3 850 1500 85 17 -16.9 -1.5 | 58 7 -6.3 -3.9 4 700 2935 85 15 -14.9 -1.3 | 49 6 -4.3 -3.7 5 500 5320 60 15 -13.0 -7.5 | 13 10 -2.3 -9.9 6 400 6800 75 29 -28.0 -7.5 | 60 20 -17.4 -9.9 7 300 8630 50 27 -20.7 -17.4 | 27 22 -10.0 -19.8 8 292 8799 45 25 -17.7 -17.7 | 19 21 -7.0 -20.1 9 250 9770 15 19 -4.9 -18.4 | 345 22 5.7 -20.8 10 200 11160 335 23 9.7 -20.8 | 319 31 20.4 -23.2 11 150 12960 320 23 14.8 -17.6 | 308 32 25.4 -20.0 12 100 15450 300 29 25.1 -14.5 | 295 40 35.8 -16.9 Wind Parameters Mean winds (0-6000m): 72.7 at 14.5 knts Storm direction: 102.7 at 10.9 knts Shear (0-3000m) pos: 2.9 neg: 0.3 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 123.0 deg Storm rel helicity (0-3000m) pos: 56.4 neg: -2.2 tot: 54.3 m^2/s^2 ave: 18.1 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 3.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.96 Bulk Shear: 19.39 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 21 5 308 11| 8.3 0.0 8.3| 26.9 0.0 26.9 53.8 0.96| 9.4 9.0 1000 46 8 327 9| 6.8 0.0 6.8| 44.1 0.0 44.1 44.1 0.94| 8.7 8.1 1500 63 10 348 7| 5.8 0.0 5.8| 56.4 0.0 56.4 37.6 0.95| 8.0 7.6 2000 71 12 5 6| 4.3 0.2 4.5| 56.4 -0.6 55.8 27.9 0.91| 6.2 5.6 2500 75 13 15 6| 3.5 0.3 3.8| 56.4 -1.2 55.2 22.1 0.87| 5.1 4.4 3000 77 13 21 6| 2.9 0.3 3.2| 56.4 -2.2 54.3 18.1 0.81| 4.4 3.6 4000 77 14 25 6| 2.2 0.5 2.7| 56.4 -5.9 50.6 12.6 0.66| 3.6 2.4 5000 75 14 25 7| 1.7 0.7 2.4| 56.4 -10.3 46.1 9.2 0.54| 3.2 1.7 6000 73 15 26 7| 2.1 0.6 2.6| 76.5 -11.3 65.2 10.9 0.58| 3.4 1.9 Wrote GIF file: /home/apache/climate/data/raob//U3921/skewt/U3921.skewt.20251208.00.gif