UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121212.upa.cvt Date: 1200Z 12 DEC 25 Searching for U1946... Searching the city database file for: U1946 ... Date:1200Z 12 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 ------------------------------------------------------------------------------- SFC 1012 43 -28.7 -32.0 73 3.3 -28.9 250 11 243.6 243.7 243.5 244.3 0.26 1 1006 86 -29.1 -33.2 68 4.1 -29.3 255 15 243.6 243.7 243.4 244.3 0.23 2 1000 129 -28.1 -32.1 69 4.0 -28.4 260 19 245.1 245.1 244.8 245.8 0.26 3 977 297 -22.3 -25.9 72 3.6 -22.7 261 17 252.5 252.6 252.0 253.8 0.47 4 925 697 -23.7 -26.5 78 2.8 -24.0 265 13 255.1 255.1 254.1 256.4 0.47 5 906 849 -24.5 -27.7 75 3.2 -24.8 259 12 255.8 255.8 254.6 257.0 0.43 6 858 1249 -19.5 -22.6 76 3.1 -20.0 243 9 265.0 265.1 262.5 267.1 0.72 7 850 1319 -19.7 -22.7 77 3.0 -20.1 240 9 265.5 265.6 262.9 267.6 0.73 8 805 1721 -22.1 -25.2 76 3.1 -22.5 223 10 267.1 267.2 263.9 268.9 0.61 9 782 1935 -20.7 -24.0 75 3.3 -21.2 214 11 270.8 271.0 266.6 272.9 0.70 10 700 2748 -24.3 -28.8 66 4.5 -24.9 180 13 275.6 275.7 269.4 277.1 0.51 11 663 3143 -25.9 -30.5 65 4.6 -26.4 178 13 278.1 278.2 270.8 279.5 0.46 12 558 4373 -33.3 -38.3 61 5.0 -33.7 170 12 283.4 283.4 273.6 284.2 0.25 13 500 5130 -42.1 -47.0 59 4.9 -42.3 165 11 281.7 281.7 272.3 282.1 0.11 14 486 5321 -44.3 -49.1 59 4.8 -44.5 151 11 281.3 281.3 272.1 281.6 0.09 15 441 5966 -47.3 -52.0 58 4.7 -47.4 103 10 285.4 285.4 274.4 285.7 0.07 16 416 6347 -52.1 -56.7 58 4.6 -52.2 74 9 284.1 284.1 273.6 284.2 0.04 17 400 6600 -53.3 -58.0 56 4.7 -53.4 55 9 285.7 285.7 274.5 285.9 0.04 18 322 7977 -59.3 -63.8 56 4.5 -59.3 160 11 295.7 295.7 279.4 295.8 0.02 19 309 8235 -59.7 -64.1 56 4.4 -59.7 140 9 298.7 298.7 280.8 298.7 0.02 20 300 8420 -58.9 -63.5 55 4.6 -59.0 125 7 302.3 302.3 282.4 302.4 0.02 21 250 9570 -56.9 -61.7 54 4.8 -57.0 150 15 321.5 321.5 289.2 321.6 0.04 22 207 10778 -53.7 -59.7 48 6.0 -53.9 167 23 344.3 344.3 295.4 344.6 0.06 23 200 11000 -53.7 -59.7 48 6.0 -53.9 170 25 347.7 347.7 296.2 348.0 0.06 24 156 12599 -53.1 -61.1 37 8.0 -53.4 374.4 374.4 301.4 374.7 0.07 TRP 322 7977 -59.3 -63.8 56 4.5 -59.3 160 11 295.7 295.7 279.4 295.8 0.02 WND Sounding variables and indices 1000-500 mb thick: 5001.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 68.26 % Est. max temperature: -8.04 C = 17.53 F Sfc-Lift cond lev (LCL): 957.15 mb = 447.37 m = 1467.75 ft T: -22.83 C 700-500 lapse rate: 7.47 C/km ThetaE index: 0.05 C Layer 1006.0-1000.0 mb Conv cond level (CCL): 1006.00 mb = 86.09 m = 282.44 ft Mean mixing ratio: 0.42 g/kg Conv temperature: -26.43 C = -15.58 F Cap Strength: 25.86 C Lifted Index: 23.65 C Risk: None Lifted Index @300 mb: 35.01 C Lifted Index @700 mb: 20.74 C Showalter Index: 11.73 C Risk: None Total Totals Index: 41.80 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 19.40 C K Index: -4.80 Risk: None Sweat Index: 29.00 Risk: None Energy Index: 3.15 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 46.51 J/kg Max Up Vert Vel: 9.64 m/s Conv Inhibition (B-): 16877.84 J/kg Cap Strength: 25.73 C Lift Cond Lev (LCL): 912.41 mb = 797.05 m = 2614.95 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 224 at 9 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 1012 43 250 11 10.3 3.8 | 302 5 4.2 -2.6 1 1000 129 260 19 18.7 3.3 | 284 13 12.5 -3.1 2 925 697 265 13 13.0 1.1 | 308 9 6.8 -5.2 3 850 1319 240 9 7.8 4.5 | 319 2 1.6 -1.9 4 700 2748 180 13 0.0 13.0 | 137 9 -6.2 6.6 5 500 5130 165 11 -2.8 10.6 | 115 10 -9.0 4.3 6 400 6600 55 9 -7.4 -5.2 | 50 18 -13.5 -11.5 7 322 7977 160 11 -3.8 10.3 | 112 11 -9.9 4.0 8 300 8420 125 7 -5.7 4.0 | 79 12 -11.9 -2.4 9 250 9570 150 15 -7.5 13.0 | 116 15 -13.7 6.6 10 200 11000 170 25 -4.3 24.6 | 150 21 -10.5 18.2 Wind Parameters Mean winds (0-6000m): 194.1 at 11.8 knts Storm direction: 224.1 at 8.9 knts Shear (0-3000m) pos: 0.8 neg: 3.2 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): -168.0 deg Storm rel helicity (0-3000m) pos: 12.2 neg: -13.4 tot: -1.3 m^2/s^2 ave: -0.4 10^-3 m/s^2 rel: -0.17 Storm rel vorticity (0-3000m) horiz: 5.7 stream: -1.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.36 Bulk Shear: 34.07 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 ------------------------------------------------------------------------------- 500 261 16 290 11| 4.8 0.0 4.8| 8.7 -5.1 3.6 7.3 0.02| 13.1 0.2 1000 261 15 296 9| 2.4 2.4 4.9| 11.6 -5.5 6.0 6.0 0.07| 9.2 0.6 1500 256 13 298 7| 1.6 2.9 4.5| 12.2 -6.0 6.2 4.1 0.04| 7.5 0.3 2000 249 12 290 6| 1.2 3.1 4.3| 12.2 -7.3 4.9 2.4 -0.09| 6.7 -0.6 2500 239 12 272 4| 1.0 3.4 4.4| 12.2 -10.2 2.0 0.8 -0.14| 6.3 -0.9 3000 229 12 242 4| 0.8 3.2 4.0| 12.2 -13.4 -1.3 -0.4 -0.17| 5.7 -1.0 4000 214 12 191 4| 0.6 2.5 3.1| 12.2 -17.3 -5.1 -1.3 -0.21| 4.5 -0.9 5000 203 12 164 5| 0.5 2.0 2.5| 12.2 -21.0 -8.9 -1.8 -0.24| 3.7 -0.9 6000 194 12 147 6| 0.4 2.1 2.5| 12.2 -59.3 -47.1 -7.9 -0.39| 4.2 -1.7 Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20251212.12.gif