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 U4908... Searching the city database file for: U4908 ... Date:1200Z 7 DEC 25 Station: U4908 WMO ident: 24908 Latitude: 60.33 Longitude: 102.27 ------------------------------------------------------------------------------- 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 190 SFC 990 262 -28.5 -31.4 76 2.9 -28.7 185 1 245.4 245.4 245.1 246.1 0.28 2 951 550 -29.7 -33.1 72 3.4 -29.9 212 8 247.0 247.0 246.5 247.7 0.25 3 925 748 -28.3 -31.8 72 3.5 -28.6 230 13 250.4 250.4 249.6 251.2 0.29 4 899 953 -27.1 -30.5 73 3.4 -27.4 232 12 253.7 253.7 252.6 254.6 0.34 5 850 1355 -29.1 -32.4 73 3.3 -29.3 235 9 255.7 255.7 254.2 256.5 0.30 6 775 2009 -33.5 -36.9 71 3.4 -33.7 237 18 257.8 257.8 255.8 258.4 0.21 7 744 2296 -32.3 -35.8 71 3.5 -32.5 238 21 262.1 262.1 259.3 262.8 0.24 8 700 2725 -33.3 -36.7 71 3.4 -33.5 240 27 265.6 265.6 262.0 266.3 0.24 9 590 3909 -38.7 -42.1 70 3.4 -38.9 248 30 272.6 272.7 266.8 273.1 0.16 10 500 5030 -43.9 -47.6 67 3.7 -44.0 255 33 279.5 279.5 271.1 279.9 0.10 11 406 6413 -51.1 -55.4 60 4.3 -51.2 260 29 287.4 287.4 275.4 287.5 0.05 12 400 6510 -51.5 -55.9 59 4.4 -51.6 260 29 288.1 288.1 275.7 288.2 0.05 13 324 7862 -56.3 -60.9 56 4.6 -56.3 265 27 299.3 299.3 281.1 299.4 0.03 14 300 8350 -56.9 -61.6 55 4.7 -57.0 270 23 305.1 305.1 283.5 305.3 0.03 15 297 8413 -56.9 -61.6 55 4.7 -57.0 270 23 306.0 306.0 283.8 306.1 0.03 16 250 9500 -55.1 -60.1 54 5.0 -55.2 275 21 324.1 324.2 290.0 324.3 0.05 17 200 10930 -56.1 -61.1 53 5.0 -56.2 270 19 343.9 343.9 295.3 344.1 0.05 18 174 11812 -55.7 -61.7 47 6.0 -55.9 277 22 358.6 358.6 298.5 358.8 0.05 19 150 12750 -56.9 -62.9 47 6.0 -57.1 285 25 372.0 372.1 300.9 372.3 0.05 20 100 15320 -58.7 -64.7 46 6.0 -58.9 280 25 414.3 414.3 307.1 414.6 0.06 21 70 17530 -62.5 -68.5 44 6.0 -62.7 270 40 450.7 450.7 311.0 451.0 0.05 22 50 19590 -64.7 -70.7 43 6.0 -64.9 265 42 491.0 491.0 314.3 491.4 0.06 23 32 22298 -67.3 -73.3 42 6.0 -67.5 550.9 550.9 318.2 551.3 0.06 TRP 324 7862 -56.3 -60.9 56 4.6 -56.3 265 27 299.3 299.3 281.1 299.4 0.03 WND Sounding variables and indices 1000-500 mb thick: 4840.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.05 inches Sfc-500 mean rel hum: 70.96 % Est. max temperature: -17.95 C = -0.31 F Sfc-Lift cond lev (LCL): 942.74 mb = 612.01 m = 2007.87 ft T: -29.26 C 700-500 lapse rate: 4.60 C/km ThetaE index: 0.00 C Layer 990.0- 0.0 mb Conv cond level (CCL): 652.73 mb = 3209.15 m = 10528.56 ft Mean mixing ratio: 0.28 g/kg Conv temperature: -5.44 C = 22.21 F Cap Strength: 19.64 C Lifted Index: 24.34 C Risk: None Lifted Index @300 mb: 39.17 C Lifted Index @700 mb: 14.38 C Showalter Index: 18.92 C Risk: None Total Totals Index: 26.30 C Risk: None Vertical Totals Index: 14.80 C Cross Totals Index: 11.50 C K Index: -21.00 Risk: None Sweat Index: 51.00 Risk: None Energy Index: 4.91 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 37.22 J/kg Max Up Vert Vel: 8.63 m/s Conv Inhibition (B-): 48549.90 J/kg Cap Strength: 23.86 C Lift Cond Lev (LCL): 888.17 mb = 1039.81 m = 3411.42 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 278 at 18 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 ---------------------------------------------------------- 0 990 262 185 1 0.1 1.0 | 101 18 -17.7 3.5 1 925 748 230 13 10.0 8.4 | 144 13 -7.8 10.8 2 850 1355 235 9 7.4 5.2 | 126 13 -10.4 7.6 3 700 2725 240 27 23.4 13.5 | 199 17 5.6 16.0 4 500 5030 255 33 31.9 8.5 | 232 18 14.1 11.0 5 400 6510 260 29 28.6 5.0 | 235 13 10.8 7.5 6 324 7862 265 27 26.9 2.4 | 242 10 9.1 4.8 7 300 8350 270 23 23.0 -0.0 | 245 6 5.2 2.5 8 250 9500 275 21 20.9 -1.8 | 259 3 3.1 0.6 9 200 10930 270 19 19.0 -0.0 | 207 3 1.2 2.5 10 150 12750 285 25 24.1 -6.5 | 302 8 6.4 -4.0 11 100 15320 280 25 24.6 -4.3 | 285 7 6.8 -1.9 12 70 17530 270 40 40.0 -0.0 | 264 22 22.2 2.5 13 50 19590 265 42 41.8 3.7 | 256 25 24.1 6.1 Wind Parameters Mean winds (0-6000m): 247.9 at 23.9 knts Storm direction: 277.9 at 17.9 knts Shear (0-3000m) pos: 4.8 neg: 0.0 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): 105.8 deg Storm rel helicity (0-3000m) pos: 120.1 neg: -13.3 tot: 106.8 m^2/s^2 ave: 35.6 10^-3 m/s^2 rel: 0.72 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 4.6 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.93 Bulk Shear: 40.10 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 ------------------------------------------------------------------------------- 500 227 7 120 15| 12.6 0.0 12.6| 52.9 0.0 52.9 105.8 0.91| 13.7 12.5 1000 230 9 128 14| 4.6 0.0 4.6| 52.9 -11.4 41.4 41.4 0.53| 8.6 4.6 1500 232 10 130 13| 4.7 0.0 4.7| 69.5 -13.3 56.2 37.5 0.60| 7.7 4.6 2000 234 12 139 12| 5.2 0.0 5.2| 90.4 -13.3 77.1 38.5 0.68| 7.5 5.1 2500 236 14 151 12| 5.5 0.0 5.5|110.9 -13.3 97.7 39.1 0.71| 7.3 5.1 3000 238 16 161 12| 4.8 0.0 4.8|120.1 -13.3 106.8 35.6 0.72| 6.4 4.6 4000 241 20 178 12| 3.9 0.0 3.9|139.3 -13.3 126.0 31.5 0.75| 5.4 4.0 5000 245 22 192 12| 3.3 0.0 3.3|155.8 -13.3 142.5 28.5 0.76| 4.7 3.6 6000 248 24 201 12| 2.5 0.0 2.5|158.2 -13.3 144.9 24.2 0.72| 4.2 3.0 Wrote GIF file: /home/apache/climate/data/raob//U4908/skewt/U4908.skewt.20251207.12.gif