UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for U9231... Searching the city database file for: U9231 ... Date:1200Z 9 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 1029 78 -25.5 -29.0 72 3.5 -25.8 320 1 245.6 245.7 245.5 246.5 0.34 1 1015 177 -25.9 -29.2 74 3.3 -26.2 320 2 246.2 246.2 246.0 247.1 0.34 2 1000 286 -23.5 -26.5 76 3.0 -23.8 320 3 249.6 249.7 249.3 250.8 0.44 3 944 716 -15.5 -17.5 85 2.0 -15.9 331 4 261.9 262.1 260.8 264.7 1.02 4 925 871 -13.5 -15.1 88 1.6 -13.9 335 5 265.5 265.7 263.9 269.0 1.28 5 909 1004 -12.3 -13.6 90 1.3 -12.6 339 5 268.1 268.3 266.1 272.1 1.47 6 850 1511 -16.1 -18.9 79 2.8 -16.6 355 7 269.3 269.4 266.1 272.1 1.01 7 700 2947 -25.7 -30.7 63 5.0 -26.2 360 9 274.0 274.1 268.2 275.3 0.42 8 695 2999 -26.1 -31.1 63 5.0 -26.6 360 9 274.1 274.2 268.2 275.4 0.41 9 668 3285 -25.3 -31.3 57 6.0 -26.0 360 9 278.2 278.2 270.8 279.5 0.42 10 509 5207 -36.9 -47.9 31 11.0 -37.4 360 11 286.6 286.6 275.0 286.9 0.10 11 500 5330 -37.7 -47.7 34 10.0 -38.2 360 11 287.1 287.1 275.3 287.4 0.10 12 400 6830 -49.9 -57.9 38 8.0 -50.1 350 13 290.1 290.1 276.8 290.3 0.04 13 361 7490 -54.9 -62.9 36 8.0 -55.0 343 14 292.1 292.1 277.7 292.2 0.02 14 300 8650 -61.7 -69.7 34 8.0 -61.7 330 17 298.4 298.4 280.6 298.4 0.01 15 294 8775 -62.5 -70.5 33 8.0 -62.6 329 17 299.0 299.0 280.9 299.0 0.01 16 250 9770 -65.9 -73.9 32 8.0 -66.0 320 19 308.1 308.1 284.6 308.1 0.01 17 241 9992 -67.1 -75.1 31 8.0 -67.1 320 19 309.5 309.5 285.1 309.6 0.01 18 200 11120 -66.5 -74.5 32 8.0 -66.5 315 21 327.4 327.4 291.0 327.5 0.01 19 150 12870 -64.9 -72.9 32 8.0 -65.0 295 25 358.3 358.3 298.4 358.3 0.01 20 100 15340 -65.9 -73.9 32 8.0 -66.0 285 29 400.4 400.4 305.3 400.5 0.02 21 93 15777 -66.1 -74.1 32 8.0 -66.2 283 29 408.4 408.4 306.3 408.5 0.02 22 70 17480 -68.5 -77.5 26 9.0 -68.6 275 31 437.8 437.8 309.7 437.9 0.01 23 50 19490 -71.9 -80.9 25 9.0 -72.0 265 35 474.1 474.1 313.0 474.1 0.01 24 38 21109 -73.9 -82.9 24 9.0 -74.0 268 37 507.7 507.7 315.5 507.7 0.01 25 30 22500 -72.5 -82.5 21 10.0 -72.6 270 38 547.0 547.0 317.9 547.1 0.01 26 27 23113 -76.7 -86.7 19 10.0 -76.8 551.9 551.9 318.2 552.0 0.01 TRP 241 9992 -67.1 -75.1 31 8.0 -67.1 320 19 309.5 309.5 285.1 309.6 0.01 WND Sounding variables and indices 1000-500 mb thick: 5044.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 62.23 % Est. max temperature: -2.26 C = 27.92 F Sfc-Lift cond lev (LCL): 970.44 mb = 510.05 m = 1673.38 ft T: -19.33 C 700-500 lapse rate: 5.04 C/km ThetaE index: 0.00 C Layer 1029.0- -0.0 mb Conv cond level (CCL): 1015.00 mb = 177.36 m = 581.87 ft Mean mixing ratio: 0.69 g/kg Conv temperature: -20.28 C = -4.50 F Cap Strength: 24.96 C Lifted Index: 25.21 C Risk: None Lifted Index @300 mb: 29.75 C Lifted Index @700 mb: 16.29 C Showalter Index: 12.44 C Risk: None Total Totals Index: 40.40 C Risk: None Vertical Totals Index: 21.60 C Cross Totals Index: 18.80 C K Index: -2.30 Risk: None Sweat Index: 25.00 Risk: None Energy Index: 3.18 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 62.41 J/kg Max Up Vert Vel: 11.17 m/s Conv Inhibition (B-): 44602.27 J/kg Cap Strength: 25.08 C Lift Cond Lev (LCL): 955.10 mb = 629.01 m = 2063.65 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 26 at 6 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 1029 78 320 1 0.6 -0.8 | 215 6 3.5 4.9 1 1000 286 320 3 1.9 -2.3 | 235 6 4.8 3.4 2 925 871 335 5 2.1 -4.5 | 257 5 4.9 1.2 3 850 1511 355 7 0.6 -7.0 | 291 4 3.4 -1.3 4 700 2947 360 9 -0.0 -9.0 | 319 4 2.8 -3.3 5 500 5330 360 11 -0.0 -11.0 | 332 6 2.8 -5.3 6 400 6830 350 13 2.3 -12.8 | 324 9 5.1 -7.1 7 300 8650 330 17 8.5 -14.7 | 309 14 11.3 -9.0 8 250 9770 320 19 12.2 -14.6 | 301 17 15.0 -8.9 9 241 9992 320 19 12.2 -14.6 | 301 17 15.0 -8.9 10 200 11120 315 21 14.8 -14.8 | 297 20 17.7 -9.2 11 150 12870 295 25 22.7 -10.6 | 281 26 25.5 -4.9 12 100 15340 285 29 28.0 -7.5 | 273 31 30.8 -1.8 13 70 17480 275 31 30.9 -2.7 | 265 34 33.7 3.0 14 50 19490 265 35 34.9 3.1 | 257 39 37.7 8.7 15 30 22500 270 38 38.0 -0.0 | 262 41 40.8 5.7 Wind Parameters Mean winds (0-6000m): 356.5 at 8.5 knts Storm direction: 26.5 at 6.4 knts Shear (0-3000m) pos: 1.4 neg: 0.0 tot: 1.4 10-3/s Storm rel Dir Shear (0-3000m): 105.1 deg Storm rel helicity (0-3000m) pos: 11.3 neg: 0.0 tot: 11.3 m^2/s^2 ave: 3.8 10^-3 m/s^2 rel: 0.93 Storm rel vorticity (0-3000m) horiz: 1.6 stream: 1.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 11.93 Bulk Shear: 5.23 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 ------------------------------------------------------------------------------- 500 323 3 233 6| 3.1 0.0 3.1| 4.6 0.0 4.6 9.3 0.98| 3.2 3.1 1000 331 4 244 5| 2.4 0.0 2.4| 7.1 0.0 7.1 7.1 0.95| 2.6 2.5 1500 340 5 254 5| 2.2 0.0 2.2| 9.2 0.0 9.2 6.1 0.93| 2.5 2.3 2000 345 5 263 4| 1.8 0.0 1.8| 9.9 0.0 9.9 4.9 0.94| 2.1 1.9 2500 349 6 272 4| 1.6 0.0 1.6| 10.6 0.0 10.6 4.2 0.94| 1.8 1.7 3000 352 6 280 4| 1.4 0.0 1.4| 11.3 0.0 11.3 3.8 0.93| 1.6 1.5 4000 354 7 292 4| 1.1 0.1 1.2| 11.9 0.0 11.9 3.0 0.90| 1.3 1.2 5000 356 8 303 4| 0.9 0.2 1.0| 12.5 0.0 12.5 2.5 0.87| 1.1 1.0 6000 356 8 310 4| 0.7 0.3 1.0| 12.6 -0.7 11.9 2.0 0.74| 1.1 0.8 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20251209.12.gif