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 U1946... Searching the city database file for: U1946 ... Date:1200Z 5 DEC 25 Station: U1946 WMO ident: 21946 Latitude: 70.62 Longitude: 147.90 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 -37 SFC 989 47 -14.3 -16.0 87 1.7 -14.6 60 15 259.7 259.8 259.2 262.7 1.11 2 925 555 -13.3 -15.0 87 1.7 -13.7 80 21 265.7 265.9 264.1 269.2 1.29 3 924 563 -13.3 -15.0 87 1.7 -13.7 80 21 265.8 266.0 264.1 269.3 1.29 4 901 757 -8.7 -10.0 90 1.3 -9.1 91 23 272.5 272.8 269.9 277.9 1.98 5 850 1207 -9.3 -11.0 87 1.7 -9.8 115 27 276.4 276.7 272.2 281.9 1.94 6 841 1289 -9.3 -11.3 85 2.0 -9.9 114 27 277.2 277.6 272.7 282.7 1.91 7 734 2330 -15.5 -18.0 81 2.5 -16.1 96 21 281.5 281.7 274.1 285.2 1.26 8 700 2688 -16.5 -18.8 82 2.3 -17.0 90 19 284.2 284.4 275.6 287.9 1.24 9 604 3791 -19.7 -23.2 74 3.5 -20.4 123 27 292.8 292.9 279.4 295.8 0.98 10 545 4559 -17.5 -20.0 81 2.5 -18.1 146 33 304.1 304.4 284.8 308.7 1.43 11 500 5200 -21.3 -24.7 74 3.4 -22.0 165 38 307.1 307.3 285.5 310.5 1.03 12 400 6800 -32.3 -36.2 68 3.9 -32.7 160 56 313.0 313.1 286.9 314.5 0.43 13 300 8770 -46.1 -49.9 65 3.8 -46.3 165 85 320.4 320.4 289.0 320.9 0.13 14 250 9960 -54.9 -59.0 60 4.1 -55.0 165 112 324.4 324.5 290.2 324.7 0.05 15 237 10299 -57.3 -61.5 59 4.2 -57.4 160 112 325.8 325.8 290.5 325.9 0.04 16 230 10488 -58.7 -62.9 58 4.2 -58.7 160 111 326.5 326.5 290.7 326.6 0.04 17 200 11360 -61.3 -65.1 61 3.8 -61.3 160 108 335.7 335.7 293.3 335.8 0.03 18 190 11676 -62.7 -66.8 58 4.1 -62.7 160 110 338.4 338.4 294.0 338.5 0.03 19 184 11873 -62.9 -67.1 57 4.2 -63.0 164 106 341.2 341.2 294.6 341.3 0.02 20 160 12738 -59.7 -63.9 58 4.2 -59.8 182 86 360.5 360.5 298.8 360.7 0.04 21 150 13140 -60.7 -64.7 59 4.0 -60.8 190 77 365.5 365.5 299.8 365.7 0.04 22 134 13839 -63.7 -68.0 56 4.3 -63.8 190 72 372.2 372.2 300.9 372.3 0.03 23 100 15650 -61.3 -65.7 56 4.4 -61.4 190 60 409.3 409.3 306.5 409.6 0.06 24 97 15839 -63.5 -68.1 53 4.6 -63.6 190 60 408.6 408.6 306.3 408.8 0.04 25 70 17850 -62.9 -67.9 51 5.0 -63.0 190 64 449.8 449.8 310.8 450.1 0.06 26 69 17939 -62.7 -67.7 51 5.0 -62.9 452.1 452.1 311.1 452.4 0.06 TRP 190 11676 -62.7 -66.8 58 4.1 -62.7 160 110 338.4 338.4 294.0 338.5 0.03 WND 237 10299 -57.3 -61.5 59 4.2 -57.4 160 112 325.8 325.8 290.5 325.9 0.04 Sounding variables and indices 1000-500 mb thick: 5237.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.32 inches Sfc-500 mean rel hum: 81.45 % Est. max temperature: 3.30 C = 37.93 F Sfc-Lift cond lev (LCL): 962.02 mb = 256.92 m = 842.90 ft T: -13.89 C 700-500 lapse rate: 1.91 C/km Conv cond level (CCL): 989.00 mb = 46.85 m = 153.71 ft Mean mixing ratio: 1.40 g/kg Conv temperature: -13.18 C = 8.28 F Cap Strength: 29.47 C Lifted Index: 31.09 C Risk: None Lifted Index @300 mb: 36.15 C Lifted Index @700 mb: 14.53 C Showalter Index: 21.16 C Risk: None Total Totals Index: 22.30 C Risk: None Vertical Totals Index: 12.00 C Cross Totals Index: 10.30 C K Index: -1.30 Risk: None Sweat Index: 92.00 Risk: None Energy Index: 5.89 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 54.34 J/kg Max Up Vert Vel: 10.43 m/s Conv Inhibition (B-): 29345.61 J/kg Cap Strength: 30.86 C Lift Cond Lev (LCL): 917.09 mb = 620.79 m = 2036.67 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 161 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 ---------------------------------------------------------- 0 989 47 60 15 -13.0 -7.5 | 13 28 -6.3 -27.2 1 925 555 80 21 -20.7 -3.6 | 31 27 -14.0 -23.4 2 850 1207 115 27 -24.5 11.4 | 65 20 -17.8 -8.3 3 700 2688 90 19 -19.0 0.0 | 32 23 -12.3 -19.7 4 500 5200 165 38 -9.8 36.7 | 169 17 -3.1 17.0 5 400 6800 160 56 -19.2 52.6 | 159 35 -12.5 32.9 6 300 8770 165 85 -22.0 82.1 | 166 64 -15.3 62.4 7 250 9960 165 112 -29.0 108.2 | 166 91 -22.3 88.4 8 237 10299 160 112 -38.3 105.2 | 160 91 -31.6 85.5 9 200 11360 160 108 -36.9 101.5 | 160 87 -30.3 81.7 10 190 11676 160 110 -37.6 103.4 | 160 89 -30.9 83.6 11 150 13140 190 77 13.4 75.8 | 200 60 20.1 56.1 12 100 15650 190 60 10.4 59.1 | 204 43 17.1 39.3 13 70 17850 190 64 11.1 63.0 | 202 47 17.8 43.3 Wind Parameters Mean winds (0-6000m): 131.3 at 27.8 knts Storm direction: 161.3 at 20.9 knts Shear (0-3000m) pos: 3.9 neg: 1.5 tot: 5.3 10-3/s Storm rel Dir Shear (0-3000m): 30.0 deg Storm rel helicity (0-3000m) pos: 171.8 neg: -66.2 tot: 105.6 m^2/s^2 ave: 35.2 10^-3 m/s^2 rel: 0.36 Storm rel vorticity (0-3000m) horiz: 7.0 stream: 2.5 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 0.69 Bulk Shear: 78.41 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 72 18 22 27| 8.7 0.0 8.7| 62.4 0.0 62.4 124.9 1.00| 8.8 8.7 1000 84 21 32 26| 9.6 0.0 9.6|130.2 0.0 130.2 130.2 0.93| 10.5 9.7 1500 95 22 41 24| 6.6 0.0 6.6|148.1 -14.3 133.8 89.2 0.72| 9.3 6.7 2000 98 23 44 23| 4.9 1.1 6.1|148.1 -38.1 110.0 55.0 0.49| 8.1 3.9 2500 98 22 43 23| 3.9 1.7 5.7|148.1 -61.6 86.5 34.6 0.32| 7.3 2.3 3000 98 22 42 23| 3.9 1.5 5.3|171.8 -66.2 105.6 35.2 0.36| 7.0 2.5 4000 104 23 47 21| 4.7 1.1 5.8|240.2 -66.2 174.0 43.5 0.51| 7.2 3.7 5000 118 25 62 17| 5.1 0.9 6.0|312.0 -66.2 245.8 49.2 0.63| 7.7 4.8 6000 131 28 84 14| 4.7 0.2 5.0|324.5 -79.3 245.1 40.9 0.55| 7.5 4.1 Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20251205.12.gif