UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120400.upa.cvt Date: 0000Z 4 DEC 25 Searching for U9231... Searching the city database file for: U9231 ... Date:0000Z 4 DEC 25 Station: U9231 WMO ident: 29231 Latitude: 58.30 Longitude: 82.88 ------------------------------------------------------------------------------- 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 52 280 3 SFC 997 76 -1.7 -3.5 87 1.8 -2.4 280 3 271.7 272.2 270.9 279.7 2.96 2 925 667 -6.1 -8.1 86 2.0 -6.7 275 9 273.1 273.4 270.7 279.3 2.24 3 850 1325 -10.1 -12.2 85 2.1 -10.7 270 13 275.6 275.9 271.5 280.5 1.76 4 830 1507 -11.3 -13.5 84 2.2 -11.9 269 15 276.2 276.5 271.6 280.8 1.62 5 728 2502 -14.1 -16.2 84 2.1 -14.6 262 26 283.7 283.9 275.6 288.0 1.48 6 700 2797 -15.1 -17.2 84 2.1 -15.6 260 29 285.8 286.0 276.6 290.0 1.42 7 622 3684 -19.1 -21.3 83 2.2 -19.6 258 35 291.0 291.2 278.9 294.5 1.12 8 500 5270 -31.7 255 46 294.4 9 400 6820 -43.1 250 56 299.0 10 352 7668 -49.5 248 61 301.5 11 314 8408 -53.3 246 66 306.2 12 300 8700 -55.7 245 68 306.8 13 286 9002 -57.9 245 73 307.8 14 272 9315 -60.3 250 69 308.9 15 250 9840 -59.9 255 66 317.0 16 200 11240 -57.9 260 56 341.1 17 186 11700 -57.1 261 54 349.5 18 150 13060 -58.5 265 50 369.3 19 128 14057 -58.5 386.4 TRP 272 9315 -60.3 250 69 308.9 WND 286 9002 -57.9 245 73 307.8 Sounding variables and indices 1000-500 mb thick: 5218.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.27 inches Sfc-500 mean rel hum: 84.43 % Est. max temperature: 2.27 C = 36.09 F Sfc-Lift cond lev (LCL): 969.13 mb = 299.44 m = 982.39 ft T: -3.36 C 700-500 lapse rate: 6.71 C/km ThetaE index: 0.43 C Layer 925.0- 850.0 mb Conv cond level (CCL): 904.35 mb = 842.73 m = 2764.82 ft Mean mixing ratio: 2.47 g/kg Conv temperature: 0.36 C = 32.64 F Cap Strength: 11.35 C Lifted Index: 12.64 C Risk: None Lifted Index @300 mb: 19.40 C Lifted Index @700 mb: 7.97 C Showalter Index: 11.79 C Risk: None Total Totals Index: 41.10 C Risk: None Vertical Totals Index: 21.60 C Cross Totals Index: 19.50 C K Index: 7.30 Risk: None Sweat Index: 72.00 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 7.27 J/kg Max Up Vert Vel: 3.81 m/s Conv Inhibition (B-): 13075.85 J/kg Cap Strength: 12.52 C Lift Cond Lev (LCL): 918.70 mb = 720.18 m = 2362.78 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 288 at 22 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 ---------------------------------------------------------- 0 997 76 280 3 3.0 -0.5 | 110 19 -17.9 6.3 1 925 667 275 9 9.0 -0.8 | 117 13 -11.9 6.1 2 850 1325 270 13 13.0 -0.0 | 131 10 -7.9 6.9 3 700 2797 260 29 28.6 5.0 | 213 14 7.7 11.9 4 500 5270 255 46 44.4 11.9 | 231 30 23.6 18.8 5 400 6820 250 56 52.6 19.2 | 231 41 31.8 26.0 6 300 8700 245 68 61.6 28.7 | 229 54 40.8 35.6 7 286 9002 245 73 66.2 30.9 | 230 59 45.3 37.7 8 272 9315 250 69 64.8 23.6 | 235 54 44.0 30.5 9 250 9840 255 66 63.8 17.1 | 241 49 42.9 23.9 10 200 11240 260 56 55.1 9.7 | 244 38 34.3 16.6 11 150 13060 265 50 49.8 4.4 | 249 31 29.0 11.2 Wind Parameters Mean winds (0-6000m): 258.2 at 29.3 knts Storm direction: 288.2 at 21.9 knts Shear (0-3000m) pos: 0.0 neg: 4.8 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): 107.8 deg Storm rel helicity (0-3000m) pos: 56.6 neg: 0.0 tot: 56.6 m^2/s^2 ave: 18.9 10^-3 m/s^2 rel: 0.69 Storm rel vorticity (0-3000m) horiz: 4.9 stream: 3.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.09 Bulk Shear: 76.76 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 ------------------------------------------------------------------------------- 500 277 6 112 17| 0.0 5.2 5.2| 7.0 0.0 7.0 14.0 0.32| 5.2 1.7 1000 275 8 115 15| 0.0 4.4 4.4| 13.9 0.0 13.9 13.9 0.43| 4.4 1.9 1500 272 10 120 13| 0.0 4.4 4.4| 23.3 0.0 23.3 15.5 0.56| 4.4 2.5 2000 270 12 127 11| 0.0 4.7 4.7| 35.4 0.0 35.4 17.7 0.69| 4.7 3.3 2500 267 14 139 10| 0.0 4.9 4.9| 47.2 0.0 47.2 18.9 0.71| 5.0 3.5 3000 265 17 153 9| 0.0 4.8 4.8| 56.6 0.0 56.6 18.9 0.69| 4.9 3.4 4000 262 21 180 10| 0.0 4.5 4.5| 71.4 0.0 71.4 17.9 0.64| 4.6 2.9 5000 260 25 200 12| 0.0 4.3 4.3| 83.8 0.0 83.8 16.8 0.58| 4.4 2.5 6000 258 29 211 15| 0.0 4.2 4.2| 86.0 -0.9 85.0 14.2 0.50| 4.2 2.1 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20251204.00.gif