UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120712.upa.cvt Date: 1200Z 7 DEC 25 Searching for U3921... Searching the city database file for: U3921 ... Date:1200Z 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 1025 93 -20.9 -24.0 76 3.1 -21.2 355 1 250.5 250.6 250.3 251.9 0.54 1 1000 275 -22.9 -27.2 68 4.3 -23.4 20 3 250.2 250.3 249.8 251.4 0.41 2 999 282 -23.1 -27.4 68 4.3 -23.5 21 3 250.1 250.2 249.7 251.2 0.40 3 973 477 -19.9 -23.7 72 3.8 -20.4 53 9 255.2 255.3 254.5 256.8 0.58 4 925 852 -20.5 -23.6 76 3.1 -20.9 115 19 258.3 258.4 257.1 260.0 0.62 5 876 1254 -22.1 -25.1 77 3.0 -22.5 121 18 260.7 260.8 258.9 262.3 0.57 6 850 1476 -20.5 -23.7 75 3.2 -21.0 125 17 264.7 264.8 262.2 266.5 0.66 7 844 1528 -20.3 -23.4 76 3.1 -20.8 124 17 265.4 265.5 262.7 267.4 0.69 8 774 2169 -20.5 -23.5 77 3.0 -21.0 118 15 271.9 272.0 267.4 274.0 0.74 9 700 2907 -23.7 -27.1 74 3.4 -24.2 110 13 276.2 276.3 269.9 278.0 0.59 10 670 3227 -24.7 -28.2 73 3.5 -25.2 130 13 278.6 278.7 271.3 280.3 0.56 11 562 4487 -32.7 -36.1 72 3.4 -33.0 211 13 283.5 283.6 273.8 284.5 0.31 12 500 5300 -39.3 -42.7 70 3.4 -39.5 265 13 285.1 285.2 274.4 285.7 0.18 13 419 6478 -49.1 -52.5 67 3.4 -49.2 269 15 287.3 287.3 275.4 287.6 0.07 14 400 6780 -49.9 -53.3 67 3.4 -50.0 270 15 290.1 290.1 276.9 290.4 0.07 15 311 8393 -57.5 -61.7 59 4.2 -57.6 285 19 301.2 301.2 281.9 301.3 0.03 16 300 8620 -57.3 -61.6 58 4.3 -57.3 275 21 304.6 304.6 283.2 304.7 0.03 17 280 9059 -56.5 -61.0 57 4.5 -56.6 281 25 311.8 311.8 286.0 311.9 0.04 18 250 9780 -57.5 -62.4 54 4.9 -57.6 290 31 320.6 320.6 288.9 320.7 0.03 19 206 10995 -60.1 -65.1 52 5.0 -60.2 290 33 334.7 334.8 293.0 334.9 0.03 20 200 11180 -59.5 -64.5 52 5.0 -59.6 290 33 338.5 338.5 294.0 338.7 0.03 21 180 11844 -56.9 -62.9 47 6.0 -57.1 292 33 353.1 353.2 297.4 353.3 0.04 22 150 12990 -60.3 -67.3 39 7.0 -60.4 295 33 366.2 366.2 299.9 366.3 0.03 23 100 15500 -63.1 -71.1 33 8.0 -63.3 290 36 405.8 405.8 306.0 405.9 0.03 24 70 17680 -67.9 -76.9 27 9.0 -68.0 285 36 439.1 439.1 309.8 439.2 0.02 25 62 18406 -70.1 -79.1 26 9.0 -70.2 280 37 449.8 449.8 310.8 449.8 0.01 26 50 19680 -72.1 -81.1 25 9.0 -72.2 270 40 473.6 473.6 313.0 473.6 0.01 27 30 22650 -76.1 -85.1 23 9.0 -76.2 265 40 537.2 537.2 317.3 537.2 0.01 28 28 23048 -76.3 -85.3 23 9.0 -76.4 547.3 547.3 317.9 547.4 0.01 TRP 311 8393 -57.5 -61.7 59 4.2 -57.6 285 19 301.2 301.2 281.9 301.3 0.03 WND Sounding variables and indices 1000-500 mb thick: 5025.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.12 inches Sfc-500 mean rel hum: 73.47 % Est. max temperature: -10.42 C = 13.25 F Sfc-Lift cond lev (LCL): 973.77 mb = 471.06 m = 1545.45 ft T: -20.00 C 700-500 lapse rate: 6.52 C/km ThetaE index: 0.69 C Layer 1000.0- 973.0 mb Conv cond level (CCL): 599.12 mb = 4028.46 m = 13216.57 ft Mean mixing ratio: 0.54 g/kg Conv temperature: 10.61 C = 51.09 F Cap Strength: 23.76 C Lifted Index: 24.25 C Risk: None Lifted Index @300 mb: 34.73 C Lifted Index @700 mb: 19.00 C Showalter Index: 15.35 C Risk: None Total Totals Index: 34.40 C Risk: None Vertical Totals Index: 18.80 C Cross Totals Index: 15.60 C K Index: -8.30 Risk: None Sweat Index: 47.00 Risk: None Energy Index: 4.12 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 38.87 J/kg Max Up Vert Vel: 8.82 m/s Conv Inhibition (B-): 45249.27 J/kg Cap Strength: 24.21 C Lift Cond Lev (LCL): 917.99 mb = 908.12 m = 2979.37 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 169 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 1025 93 355 1 0.1 -1.0 | 349 11 2.1 -10.9 1 1000 275 20 3 -1.0 -2.8 | 356 13 1.0 -12.8 2 925 852 115 19 -17.2 8.0 | 83 15 -15.2 -1.9 3 850 1476 125 17 -13.9 9.8 | 89 12 -11.9 -0.2 4 700 2907 110 13 -12.2 4.4 | 62 12 -10.2 -5.5 5 500 5300 265 13 13.0 1.1 | 301 17 14.9 -8.8 6 400 6780 270 15 15.0 -0.0 | 300 20 17.0 -10.0 7 311 8393 285 19 18.4 -4.9 | 306 25 20.3 -14.9 8 300 8620 275 21 20.9 -1.8 | 297 26 22.9 -11.8 9 250 9780 290 31 29.1 -10.6 | 303 37 31.1 -20.6 10 200 11180 290 33 31.0 -11.3 | 303 39 33.0 -21.2 11 150 12990 295 33 29.9 -13.9 | 307 40 31.9 -23.9 12 100 15500 290 36 33.8 -12.3 | 302 42 35.8 -22.3 13 70 17680 285 36 34.8 -9.3 | 298 42 36.8 -19.3 14 50 19680 270 40 40.0 -0.0 | 283 43 42.0 -10.0 15 30 22650 265 40 39.8 3.5 | 279 42 41.8 -6.5 Wind Parameters Mean winds (0-6000m): 138.7 at 13.5 knts Storm direction: 168.7 at 10.2 knts Shear (0-3000m) pos: 2.9 neg: 0.7 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 82.1 deg Storm rel helicity (0-3000m) pos: 111.7 neg: -17.0 tot: 94.8 m^2/s^2 ave: 31.6 10^-3 m/s^2 rel: 0.59 Storm rel vorticity (0-3000m) horiz: 6.6 stream: 3.9 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 1.52 Bulk Shear: 25.59 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 56 5 11 13| 12.0 0.0 12.0| 45.8 0.0 45.8 91.7 0.87| 13.8 12.0 1000 109 11 53 11| 9.7 0.0 9.7|104.3 0.0 104.3 104.3 0.91| 14.5 13.3 1500 115 13 67 11| 5.9 0.0 5.9|106.9 -1.3 105.6 70.4 0.85| 10.6 9.0 2000 117 14 71 11| 4.5 0.5 5.0|106.9 -7.6 99.3 49.7 0.73| 8.5 6.2 2500 117 14 71 11| 3.6 0.8 4.4|106.9 -13.6 93.4 37.4 0.64| 7.2 4.6 3000 117 14 70 11| 2.9 0.7 3.6|111.7 -17.0 94.8 31.6 0.59| 6.6 3.9 4000 124 14 76 10| 2.3 0.5 2.8|125.9 -17.0 108.9 27.2 0.64| 6.9 4.4 5000 128 14 80 9| 1.5 0.4 1.9|152.6 -17.0 135.6 27.1 0.65| 7.0 4.5 6000 139 14 92 7| 1.2 0.3 1.5|162.9 -17.3 145.6 24.3 0.64| 6.2 4.0 Wrote GIF file: /home/apache/climate/data/raob//U3921/skewt/U3921.skewt.20251207.12.gif