UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121300.upa.cvt Date: 0000Z 13 DEC 25 Searching for U0046... Searching the city database file for: U0046 ... Date:0000Z 13 DEC 25 Station: U0046 WMO ident: 20046 Latitude: 80.62 Longitude: 58.05 ------------------------------------------------------------------------------- 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 25 -12.9 -15.3 82 2.4 -13.4 180 13 258.6 258.8 258.4 261.7 1.14 1 1000 191 -12.9 -16.0 78 3.1 -13.5 220 13 260.2 260.4 259.6 263.2 1.10 2 986 299 -12.3 -15.1 80 2.8 -12.9 230 13 261.9 262.1 261.1 265.2 1.20 3 925 784 -15.5 -17.3 86 1.8 -15.9 275 13 263.5 263.6 262.0 266.4 1.06 4 916 858 -15.7 -17.4 87 1.7 -16.0 273 13 264.0 264.2 262.4 266.9 1.06 5 886 1110 -14.5 -16.3 86 1.8 -14.9 265 14 267.8 268.0 265.4 271.1 1.21 6 850 1424 -14.7 -17.4 80 2.7 -15.3 255 15 270.7 270.9 267.4 274.0 1.15 7 786 2014 -16.7 -25.7 46 9.0 -18.1 293 13 274.7 274.8 269.0 276.5 0.60 8 746 2406 -18.1 -31.1 31 13.0 -19.8 319 11 277.3 277.4 270.2 278.5 0.38 9 700 2878 -21.7 -36.7 24 15.0 -23.2 350 9 278.5 278.5 270.7 279.2 0.24 10 504 5206 -40.1 -48.1 42 8.0 -40.4 296 19 283.5 283.5 273.3 283.8 0.10 11 500 5260 -40.5 -48.5 42 8.0 -40.8 295 19 283.7 283.7 273.4 284.0 0.09 12 472 5653 -42.7 -50.7 41 8.0 -43.0 310 19 285.6 285.7 274.5 285.9 0.08 13 449 5990 -44.7 -52.7 40 8.0 -44.9 324 19 287.2 287.3 275.3 287.5 0.06 14 400 6760 -48.5 -57.5 34 9.0 -48.7 355 19 292.0 292.0 277.7 292.1 0.04 15 331 7986 -54.1 -63.1 32 9.0 -54.2 11 33 300.5 300.5 281.6 300.6 0.02 16 300 8610 -57.1 -67.1 27 10.0 -57.2 20 40 304.9 304.9 283.4 304.9 0.02 17 250 9750 -62.3 -71.3 29 9.0 -62.4 25 46 313.4 313.4 286.6 313.5 0.01 18 248 9799 -62.5 -71.5 29 9.0 -62.6 25 46 313.9 313.9 286.7 313.9 0.01 19 230 10262 -64.1 -73.1 28 9.0 -64.1 20 42 318.3 318.3 288.2 318.3 0.01 20 200 11120 -61.9 -70.9 29 9.0 -62.0 15 33 334.7 334.7 293.0 334.8 0.01 21 150 12900 -60.7 -70.7 26 10.0 -60.9 15 21 365.5 365.5 299.8 365.6 0.02 22 141 13286 -61.9 -71.9 25 10.0 -62.0 15 22 369.9 369.9 300.5 370.0 0.02 23 100 15410 -64.5 -75.5 21 11.0 -64.6 15 25 403.1 403.1 305.6 403.2 0.01 24 70 17570 -68.1 -79.1 19 11.0 -68.2 10 29 438.7 438.7 309.7 438.8 0.01 25 50 19560 -73.1 -84.1 17 11.0 -73.2 25 29 471.2 471.2 312.7 471.3 0.01 26 37 21317 -74.7 -85.7 17 11.0 -74.8 509.5 509.5 315.6 509.5 0.01 TRP 230 10262 -64.1 -73.1 28 9.0 -64.1 20 42 318.3 318.3 288.2 318.3 0.01 WND Sounding variables and indices 1000-500 mb thick: 5069.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 49.32 % Est. max temperature: -2.57 C = 27.38 F Sfc-Lift cond lev (LCL): 983.07 mb = 321.31 m = 1054.14 ft T: -12.45 C 700-500 lapse rate: 7.89 C/km ThetaE index: 0.00 C Layer 1022.0- -0.0 mb Conv cond level (CCL): 728.75 mb = 2579.37 m = 8462.39 ft Mean mixing ratio: 1.13 g/kg Conv temperature: 6.35 C = 43.42 F Cap Strength: 15.43 C Lifted Index: 15.50 C Risk: None Lifted Index @300 mb: 28.37 C Lifted Index @700 mb: 13.03 C Showalter Index: 8.17 C Risk: None Total Totals Index: 48.90 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.80 C Cross Totals Index: 23.10 C K Index: -6.60 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 2.13 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.77 J/kg Max Up Vert Vel: 5.96 m/s Conv Inhibition (B-): 38369.36 J/kg Cap Strength: 15.46 C Lift Cond Lev (LCL): 932.55 mb = 722.26 m = 2369.59 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 325 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 1022 25 180 13 0.0 13.0 | 164 22 -6.0 21.6 1 1000 191 220 13 8.4 10.0 | 187 19 2.3 18.6 2 925 784 275 13 13.0 -1.1 | 223 10 6.9 7.5 3 850 1424 255 15 14.5 3.9 | 214 15 8.5 12.5 4 700 2878 350 9 1.6 -8.9 | 87 4 -4.5 -0.2 5 500 5260 295 19 17.2 -8.0 | 267 11 11.2 0.6 6 400 6760 355 19 1.7 -18.9 | 23 11 -4.4 -10.3 7 300 8610 20 40 -13.7 -37.6 | 34 35 -19.7 -28.9 8 250 9750 25 46 -19.4 -41.7 | 38 42 -25.5 -33.0 9 230 10262 20 42 -14.4 -39.5 | 33 37 -20.4 -30.8 10 200 11120 15 33 -8.5 -31.9 | 32 27 -14.6 -23.2 11 150 12900 15 21 -5.4 -20.3 | 45 16 -11.5 -11.6 12 100 15410 15 25 -6.5 -24.1 | 39 20 -12.5 -15.5 13 70 17570 10 29 -5.0 -28.6 | 29 23 -11.1 -19.9 14 50 19560 25 29 -12.3 -26.3 | 46 25 -18.3 -17.6 Wind Parameters Mean winds (0-6000m): 295.1 at 14.1 knts Storm direction: 325.1 at 10.5 knts Shear (0-3000m) pos: 4.1 neg: 0.3 tot: 4.4 10-3/s Storm rel Dir Shear (0-3000m): -84.9 deg Storm rel helicity (0-3000m) pos: 94.3 neg: -6.8 tot: 87.5 m^2/s^2 ave: 29.2 10^-3 m/s^2 rel: 0.47 Storm rel vorticity (0-3000m) horiz: 8.2 stream: 3.9 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.54 Bulk Shear: 32.88 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 ------------------------------------------------------------------------------- 500 224 13 189 18| 15.5 0.0 15.5| 68.6 0.0 68.6 137.3 0.85| 16.5 14.1 1000 246 13 203 15| 9.5 0.0 9.5| 80.1 -1.4 78.6 78.6 0.73| 11.7 8.6 1500 252 14 208 15| 6.3 0.6 6.9| 83.7 -6.3 77.4 51.6 0.58| 9.6 5.6 2000 258 14 212 14| 5.8 0.4 6.2| 92.9 -6.3 86.6 43.3 0.55| 9.2 5.0 2500 264 13 215 12| 4.9 0.3 5.2| 94.0 -6.3 87.7 35.1 0.52| 9.0 4.7 3000 269 13 216 11| 4.1 0.3 4.4| 94.3 -6.8 87.5 29.2 0.47| 8.2 3.9 4000 286 12 228 8| 3.1 0.9 3.9| 94.3 -10.7 83.6 20.9 0.31| 7.0 2.2 5000 292 13 238 7| 2.5 1.5 3.9| 94.3 -17.9 76.4 15.3 0.20| 6.4 1.3 6000 295 14 248 7| 2.6 1.2 3.8|117.7 -20.4 97.3 16.2 0.29| 6.3 1.8 Wrote GIF file: /home/apache/climate/data/raob//U0046/skewt/U0046.skewt.20251213.00.gif