UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121712.upa.cvt Date: 1200Z 17 DEC 25 Searching for U9839... Searching the city database file for: U9839 ... Date:1200Z 17 DEC 25 Station: U9839 WMO ident: 29839 Latitude: 53.50 Longitude: 83.83 ------------------------------------------------------------------------------- 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 1001 144 -14.1 -18.4 70 4.3 -14.9 210 9 259.0 259.1 258.2 261.4 0.89 1 1000 152 -14.1 -18.4 70 4.3 -14.9 210 9 259.0 259.2 258.3 261.5 0.89 2 925 740 -17.3 -20.7 75 3.4 -17.9 240 21 261.6 261.7 260.1 263.8 0.79 3 909 870 -18.1 -21.0 78 2.9 -18.6 245 23 262.1 262.2 260.5 264.3 0.79 4 850 1366 -22.5 -24.8 81 2.3 -22.8 265 29 262.6 262.7 260.5 264.3 0.60 5 839 1461 -23.9 -26.4 80 2.5 -24.2 266 29 262.1 262.2 259.9 263.6 0.53 6 726 2514 -25.3 -28.0 78 2.7 -25.6 273 34 271.6 271.7 266.8 273.2 0.53 7 700 2778 -27.3 -30.9 71 3.6 -27.7 275 35 272.3 272.3 267.0 273.5 0.42 8 645 3364 -28.7 -33.1 66 4.4 -29.1 273 41 277.1 277.2 270.1 278.2 0.36 9 566 4286 -34.9 -38.7 68 3.8 -35.1 269 51 280.4 280.4 271.8 281.1 0.24 10 529 4755 -37.5 -40.9 70 3.4 -37.7 267 56 282.7 282.8 273.1 283.4 0.20 11 510 5005 -40.3 -44.8 62 4.5 -40.5 266 59 282.3 282.3 272.8 282.8 0.14 12 500 5140 -40.7 -45.1 63 4.4 -40.9 265 60 283.4 283.4 273.4 283.9 0.14 13 400 6640 -46.7 -56.7 31 10.0 -47.0 265 58 294.3 294.3 278.9 294.5 0.04 14 349 7537 -50.3 -61.3 26 11.0 -50.5 267 58 301.1 301.1 281.8 301.2 0.03 15 300 8520 -51.7 -63.7 22 12.0 -51.9 270 58 312.5 312.5 286.2 312.6 0.02 16 280 8968 -51.2 -64.0 20 12.8 -51.5 270 62 319.4 319.4 288.6 319.5 0.02 17 274 9109 -51.1 -64.1 20 13.0 -51.4 321.6 321.6 289.2 321.7 0.03 TRP WND 280 8968 -51.2 -64.0 20 12.8 -51.5 270 62 319.4 319.4 288.6 319.5 0.02 Sounding variables and indices 1000-500 mb thick: 4988.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.11 inches Sfc-500 mean rel hum: 72.46 % Est. max temperature: -10.51 C = 13.09 F Sfc-Lift cond lev (LCL): 933.43 mb = 671.58 m = 2203.33 ft T: -16.93 C 700-500 lapse rate: 5.67 C/km ThetaE index: 0.71 C Layer 850.0- 726.0 mb Conv cond level (CCL): 871.20 mb = 1183.98 m = 3884.39 ft Mean mixing ratio: 0.83 g/kg Conv temperature: -10.66 C = 12.80 F Cap Strength: 16.56 C Lifted Index: 16.82 C Risk: None Lifted Index @300 mb: 35.06 C Lifted Index @700 mb: 9.01 C Showalter Index: 15.82 C Risk: None Total Totals Index: 34.10 C Risk: None Vertical Totals Index: 18.20 C Cross Totals Index: 15.90 C K Index: -10.20 Risk: None Sweat Index: 118.00 Risk: None Energy Index: 4.16 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.49 J/kg Max Up Vert Vel: 4.36 m/s Conv Inhibition (B-): 6336.73 J/kg Cap Strength: 16.42 C Lift Cond Lev (LCL): 894.76 mb = 986.91 m = 3237.85 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 296 at 30 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 1001 144 210 9 4.5 7.8 | 133 31 -22.9 21.2 1 1000 152 210 9 4.5 7.8 | 133 31 -22.9 21.2 2 925 740 240 21 18.2 10.5 | 159 26 -9.2 23.9 3 850 1366 265 29 28.9 2.5 | 185 16 1.5 15.9 4 700 2778 275 35 34.9 -3.1 | 216 13 7.5 10.3 5 500 5140 265 60 59.8 5.2 | 240 37 32.4 18.6 6 400 6640 265 58 57.8 5.1 | 239 36 30.4 18.4 7 300 8520 270 58 58.0 -0.0 | 246 33 30.6 13.4 Wind Parameters Mean winds (0-6000m): 266.0 at 40.6 knts Storm direction: 296.0 at 30.4 knts Shear (0-3000m) pos: 5.4 neg: 0.8 tot: 6.2 10-3/s Storm rel Dir Shear (0-3000m): 93.3 deg Storm rel helicity (0-3000m) pos: 190.8 neg: 0.0 tot: 190.8 m^2/s^2 ave: 63.6 10^-3 m/s^2 rel: 0.82 Storm rel vorticity (0-3000m) horiz: 6.9 stream: 5.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.07 Bulk Shear: 127.46 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 14 143 29| 11.9 0.0 11.9| 85.4 0.0 85.4 170.7 0.93| 12.2 11.3 1000 240 18 153 25| 10.8 0.0 10.8|137.0 0.0 137.0 137.0 0.84| 11.7 9.9 1500 251 22 162 22| 9.0 0.0 9.0|159.0 0.0 159.0 106.0 0.82| 10.1 8.3 2000 257 24 169 19| 7.4 0.0 7.4|169.0 0.0 169.0 84.5 0.82| 8.3 6.9 2500 261 26 175 17| 6.5 0.0 6.5|178.9 0.0 178.9 71.5 0.83| 7.3 6.1 3000 264 28 181 16| 5.4 0.8 6.2|190.8 0.0 190.8 63.6 0.82| 6.9 5.6 4000 267 32 196 16| 4.1 2.0 6.0|212.0 0.0 212.0 53.0 0.72| 6.6 4.7 5000 266 37 211 18| 3.2 2.7 6.0|222.9 0.0 222.9 44.6 0.61| 6.4 3.9 6000 266 41 219 21| 2.7 2.2 4.9|222.9 -5.5 217.4 36.2 0.59| 5.5 3.2 Wrote GIF file: /home/apache/climate/data/raob//U9839/skewt/U9839.skewt.20251217.12.gif