UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120612.upa.cvt Date: 1200Z 6 DEC 25 Searching for U9231... Searching the city database file for: U9231 ... Date:1200Z 6 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 ------------------------------------------------------------------------------- SFC 1021 79 -24.1 -28.3 68 4.2 -24.5 260 1 247.6 247.6 247.3 248.6 0.36 1 1000 231 -22.5 -26.4 70 3.9 -22.9 265 7 250.6 250.7 250.3 251.8 0.44 2 972 438 -20.5 -24.4 71 3.9 -21.0 265 8 254.7 254.8 254.0 256.2 0.54 3 925 798 -22.9 -26.7 71 3.8 -23.3 265 11 255.9 256.0 254.8 257.2 0.46 4 890 1081 -24.7 -28.4 71 3.7 -25.1 267 16 256.9 256.9 255.5 258.0 0.41 5 850 1420 -18.9 -22.3 74 3.4 -19.4 270 21 266.3 266.5 263.6 268.5 0.75 6 847 1446 -18.5 -21.9 75 3.4 -19.1 270 21 267.0 267.2 264.1 269.3 0.78 7 786 1999 -20.7 -24.1 74 3.4 -21.2 272 27 270.4 270.6 266.3 272.5 0.69 8 700 2847 -24.5 -27.9 73 3.4 -24.9 275 35 275.4 275.4 269.3 277.0 0.55 9 660 3275 -26.7 -29.9 74 3.2 -27.1 277 41 277.5 277.6 270.5 279.0 0.48 10 525 4894 -37.7 -40.6 74 2.9 -37.9 284 63 283.1 283.1 273.3 283.8 0.21 11 500 5230 -39.7 -42.6 74 2.9 -39.9 285 68 284.6 284.7 274.1 285.2 0.18 12 400 6750 -48.7 -52.3 66 3.6 -48.8 285 79 291.7 291.7 277.6 292.0 0.08 13 336 7887 -55.5 -59.2 63 3.7 -55.6 289 89 297.3 297.3 280.2 297.5 0.04 14 312 8360 -56.8 -60.6 62 3.8 -56.9 290 93 301.9 301.9 282.2 302.0 0.03 15 300 8610 -57.5 -61.4 61 3.9 -57.6 290 89 304.3 304.3 283.2 304.4 0.03 16 250 9750 -59.7 -64.1 56 4.4 -59.7 290 81 317.3 317.3 287.9 317.4 0.03 17 247 9826 -60.3 -65.1 53 4.8 -60.3 290 80 317.5 317.5 287.9 317.6 0.02 18 200 11160 -58.1 -63.1 53 5.0 -58.2 295 68 340.8 340.8 294.6 340.9 0.04 19 153 12845 -56.7 -62.7 47 6.0 -56.9 295 59 370.3 370.3 300.7 370.5 0.05 20 150 12970 -57.1 -63.1 46 6.0 -57.3 295 58 371.7 371.7 300.9 371.9 0.05 21 100 15520 -60.7 -68.7 34 8.0 -60.9 295 52 410.4 410.5 306.6 410.6 0.04 22 94 15903 -60.7 -68.7 34 8.0 -60.9 295 53 417.8 417.8 307.4 418.0 0.04 23 70 17710 -65.7 -73.7 32 8.0 -65.8 295 56 443.8 443.8 310.3 444.0 0.03 24 50 19730 -69.5 -78.5 26 9.0 -69.6 290 58 479.7 479.7 313.4 479.8 0.02 25 37 21510 -73.1 -82.1 24 9.0 -73.2 513.6 513.6 315.9 513.7 0.01 TRP 312 8360 -57.3 -61.1 62 3.8 -57.3 290 93 301.2 301.2 281.9 301.3 0.03 WND 312 8360 -56.8 -60.6 62 3.8 -56.9 290 93 301.9 301.9 282.2 302.0 0.03 Sounding variables and indices 1000-500 mb thick: 4999.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.11 inches Sfc-500 mean rel hum: 73.35 % Est. max temperature: -10.30 C = 13.46 F Sfc-Lift cond lev (LCL): 951.88 mb = 589.66 m = 1934.57 ft T: -21.51 C 700-500 lapse rate: 6.38 C/km ThetaE index: 0.00 C Layer 1021.0- 0.0 mb Conv cond level (CCL): 604.50 mb = 3896.47 m = 12783.53 ft Mean mixing ratio: 0.48 g/kg Conv temperature: 8.25 C = 46.86 F Cap Strength: 23.69 C Lifted Index: 24.62 C Risk: None Lifted Index @300 mb: 35.18 C Lifted Index @700 mb: 18.99 C Showalter Index: 13.42 C Risk: None Total Totals Index: 38.20 C Risk: None Vertical Totals Index: 20.80 C Cross Totals Index: 17.40 C K Index: -4.90 Risk: None Sweat Index: 110.00 Risk: None Energy Index: 3.55 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 30.94 J/kg Max Up Vert Vel: 7.87 m/s Conv Inhibition (B-): 45635.44 J/kg Cap Strength: 24.25 C Lift Cond Lev (LCL): 909.92 mb = 918.38 m = 3013.01 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 310 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 1021 79 260 1 1.0 0.2 | 132 29 -22.0 19.5 1 1000 231 265 7 7.0 0.6 | 141 26 -16.0 20.0 2 925 798 265 11 11.0 1.0 | 149 24 -12.0 20.3 3 850 1420 270 21 21.0 -0.0 | 174 19 -1.9 19.4 4 700 2847 275 35 34.9 -3.1 | 216 20 11.9 16.3 5 500 5230 285 68 65.7 -17.6 | 268 43 42.7 1.8 6 400 6750 285 79 76.3 -20.4 | 271 53 53.4 -1.1 7 312 8360 290 93 87.4 -31.8 | 281 66 64.4 -12.4 8 300 8610 290 89 83.6 -30.4 | 280 62 60.7 -11.1 9 250 9750 290 81 76.1 -27.7 | 279 54 53.2 -8.3 10 200 11160 295 68 61.6 -28.7 | 284 40 38.7 -9.4 11 150 12970 295 58 52.6 -24.5 | 280 30 29.6 -5.2 12 100 15520 295 52 47.1 -22.0 | 276 24 24.2 -2.6 13 70 17710 295 56 50.8 -23.7 | 279 28 27.8 -4.3 14 50 19730 290 58 54.5 -19.8 | 271 32 31.6 -0.5 Wind Parameters Mean winds (0-6000m): 280.2 at 40.0 knts Storm direction: 310.2 at 30.0 knts Shear (0-3000m) pos: 6.4 neg: 0.0 tot: 6.4 10-3/s Storm rel Dir Shear (0-3000m): 92.7 deg Storm rel helicity (0-3000m) pos: 195.4 neg: 0.0 tot: 195.4 m^2/s^2 ave: 65.1 10^-3 m/s^2 rel: 0.91 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 5.9 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.21 Bulk Shear: 147.52 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 ------------------------------------------------------------------------------- 500 265 7 141 26| 8.7 0.0 8.7| 47.5 0.0 47.5 95.0 0.80| 8.7 6.9 1000 265 9 146 24| 7.5 0.0 7.5| 80.0 0.0 80.0 80.0 0.83| 7.5 6.2 1500 268 13 153 22| 7.4 0.0 7.4|115.8 0.0 115.8 77.2 0.87| 7.4 6.5 2000 269 16 160 21| 6.8 0.0 6.8|140.5 0.0 140.5 70.3 0.89| 6.9 6.1 2500 271 19 167 20| 6.5 0.0 6.5|165.4 0.0 165.4 66.2 0.91| 6.5 5.9 3000 272 21 175 19| 6.4 0.0 6.4|195.4 0.0 195.4 65.1 0.91| 6.4 5.9 4000 275 27 193 18| 6.6 0.0 6.6|271.3 0.0 271.3 67.8 0.88| 6.7 5.9 5000 278 34 216 18| 6.7 0.0 6.7|360.1 0.0 360.1 72.0 0.83| 6.8 5.7 6000 280 40 233 21| 6.0 0.3 6.3|395.9 0.0 395.9 66.0 0.78| 6.4 5.0 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20251206.12.gif