UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120212.upa.cvt Date: 1200Z 2 DEC 25 Searching for U9231... Searching the city database file for: U9231 ... Date:1200Z 2 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 1011 79 -1.7 -4.9 79 3.2 -2.8 270 3 270.6 271.0 269.7 277.7 2.62 1 1000 166 -2.7 -5.9 79 3.2 -3.8 270 5 270.5 270.9 269.4 277.1 2.46 2 967 430 -5.3 -8.0 81 2.7 -6.1 274 7 270.4 270.8 268.9 276.3 2.16 3 925 777 -7.5 -9.4 86 1.9 -8.1 280 9 271.6 272.0 269.4 277.2 2.02 4 884 1130 -9.1 -10.6 89 1.5 -9.5 285 12 273.5 273.8 270.5 278.9 1.93 5 850 1434 -8.7 -10.6 86 1.9 -9.2 290 15 277.0 277.4 272.7 282.7 2.00 6 836 1563 -8.5 -10.4 86 1.9 -9.1 292 16 278.6 278.9 273.7 284.4 2.07 7 737 2530 -13.7 -23.7 43 10.0 -15.7 305 22 283.1 283.2 274.2 285.4 0.77 8 700 2921 -14.1 -32.1 20 18.0 -16.9 310 25 286.9 286.9 275.6 288.1 0.37 9 672 3231 -14.1 -38.1 11 24.0 -17.4 311 26 290.2 290.3 277.2 290.9 0.21 10 567 4503 -21.1 -28.1 53 7.0 -22.3 313 31 296.5 296.6 280.7 298.6 0.67 11 500 5420 -27.7 -33.7 57 6.0 -28.5 315 35 299.3 299.3 281.7 300.7 0.44 12 445 6245 -33.3 -39.3 55 6.0 -33.8 318 40 302.3 302.4 282.7 303.3 0.28 13 400 6980 -40.5 320 44 302.4 14 391 7134 -42.9 320 45 301.2 15 300 8870 -54.3 320 52 308.8 16 250 10020 -57.6 325 62 320.4 17 200 11400 -61.7 325 56 335.1 18 150 13180 -60.7 320 52 365.5 19 100 15690 -62.3 315 46 407.4 20 95 16007 -62.3 315 45 413.4 21 70 17880 -65.3 315 42 444.7 22 58 19015 -66.7 312 41 466.1 23 50 19900 -70.5 310 40 477.4 24 44 20655 -72.5 309 39 490.2 25 30 22880 -77.1 305 38 534.5 26 20 25180 -81.9 300 46 585.5 27 19 25467 -82.3 592.9 TRP 250 10020 -63.5 325 62 311.7 WND 250 10020 -57.6 325 62 320.4 Sounding variables and indices 1000-500 mb thick: 5254.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.26 inches Sfc-500 mean rel hum: 55.17 % Est. max temperature: 3.59 C = 38.47 F Sfc-Lift cond lev (LCL): 961.45 mb = 475.30 m = 1559.37 ft T: -5.59 C 700-500 lapse rate: 5.44 C/km ThetaE index: 1.37 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 889.77 mb = 1079.08 m = 3540.25 ft Mean mixing ratio: 2.20 g/kg Conv temperature: 0.96 C = 33.73 F Cap Strength: 17.26 C Lifted Index: 18.63 C Risk: None Lifted Index @300 mb: 22.61 C Lifted Index @700 mb: 10.90 C Showalter Index: 14.12 C Risk: None Total Totals Index: 36.10 C Risk: None Vertical Totals Index: 19.00 C Cross Totals Index: 17.10 C K Index: -9.60 Risk: None Sweat Index: 65.00 Risk: None Energy Index: 3.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.90 J/kg Max Up Vert Vel: 3.43 m/s Conv Inhibition (B-): 48355.03 J/kg Cap Strength: 18.56 C Lift Cond Lev (LCL): 922.16 mb = 800.89 m = 2627.55 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 339 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 1011 79 270 3 3.0 -0.0 | 168 17 -3.4 16.6 1 1000 166 270 5 5.0 -0.0 | 175 17 -1.4 16.6 2 925 777 280 9 8.9 -1.6 | 189 15 2.4 15.1 3 850 1434 290 15 14.1 -5.1 | 214 14 7.7 11.5 4 700 2921 310 25 19.2 -16.1 | 267 13 12.7 0.6 5 500 5420 315 35 24.7 -24.7 | 294 20 18.3 -8.1 6 400 6980 320 44 28.3 -33.7 | 308 28 21.8 -17.1 7 300 8870 320 52 33.4 -39.8 | 311 36 27.0 -23.2 8 250 10020 325 62 35.6 -50.8 | 320 45 29.1 -34.2 9 200 11400 325 56 32.1 -45.9 | 319 39 25.7 -29.2 10 150 13180 320 52 33.4 -39.8 | 311 36 27.0 -23.2 11 100 15690 315 46 32.5 -32.5 | 301 31 26.1 -15.9 12 70 17880 315 42 29.7 -29.7 | 299 27 23.3 -13.1 13 50 19900 310 40 30.6 -25.7 | 291 26 24.2 -9.1 14 30 22880 305 38 31.1 -21.8 | 282 25 24.7 -5.2 15 20 25180 300 46 39.8 -23.0 | 281 34 33.4 -6.4 Wind Parameters Mean winds (0-6000m): 308.8 at 23.8 knts Storm direction: 338.8 at 17.8 knts Shear (0-3000m) pos: 4.0 neg: 0.0 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 101.5 deg Storm rel helicity (0-3000m) pos: 92.3 neg: 0.0 tot: 92.3 m^2/s^2 ave: 30.8 10^-3 m/s^2 rel: 0.97 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 4.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.12 Bulk Shear: 48.92 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 ------------------------------------------------------------------------------- 500 274 6 178 16| 4.9 0.0 4.9| 20.2 0.0 20.2 40.4 0.96| 4.9 4.8 1000 279 8 185 16| 4.6 0.0 4.6| 36.4 0.0 36.4 36.4 0.96| 4.7 4.5 1500 284 10 192 15| 4.5 0.0 4.5| 53.1 0.0 53.1 35.4 0.97| 4.7 4.5 2000 288 12 200 14| 4.3 0.0 4.3| 66.6 0.0 66.6 33.3 0.97| 4.5 4.4 2500 293 14 208 13| 4.2 0.0 4.2| 80.5 0.0 80.5 32.2 0.97| 4.5 4.4 3000 298 15 217 12| 4.0 0.0 4.0| 92.3 0.0 92.3 30.8 0.97| 4.4 4.2 4000 303 18 233 11| 3.5 0.0 3.5|104.0 0.0 104.0 26.0 0.94| 3.8 3.6 5000 306 21 249 11| 3.2 0.0 3.2|116.7 0.0 116.7 23.3 0.91| 3.5 3.1 6000 309 24 262 12| 3.2 0.0 3.2|135.6 0.0 135.6 22.6 0.87| 3.4 2.9 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20251202.12.gif