UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120712.upa.cvt Date: 1200Z 7 DEC 25 Searching for U9231... Searching the city database file for: U9231 ... Date:1200Z 7 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 1020 79 -26.9 -30.0 75 3.1 -27.1 340 1 244.9 244.9 244.7 245.7 0.31 1 1000 222 -25.3 -28.6 74 3.3 -25.6 335 3 247.9 247.9 247.6 248.8 0.36 2 962 506 -22.1 -25.5 74 3.4 -22.5 335 4 253.8 253.9 253.1 255.2 0.50 3 925 794 -23.7 -27.2 73 3.5 -24.1 335 5 255.1 255.1 254.1 256.3 0.44 4 908 928 -24.1 -27.7 72 3.6 -24.5 333 6 256.0 256.1 254.8 257.2 0.43 5 865 1281 -21.3 -25.4 69 4.1 -21.8 327 10 262.5 262.6 260.3 264.1 0.56 6 850 1409 -21.5 -26.0 67 4.5 -22.1 325 11 263.6 263.7 261.1 265.2 0.54 7 812 1747 -21.9 -28.9 53 7.0 -22.7 324 13 266.7 266.7 263.2 267.9 0.43 8 700 2831 -26.5 -38.5 31 12.0 -27.5 320 21 273.1 273.2 267.2 273.8 0.20 9 640 3469 -29.5 -42.5 27 13.0 -30.4 317 24 276.8 276.8 269.5 277.3 0.14 10 500 5180 -40.1 -51.1 30 11.0 -40.5 310 33 284.1 284.2 273.6 284.4 0.07 11 437 6087 -46.9 -57.9 27 11.0 -47.1 304 38 286.7 286.7 275.0 286.8 0.04 12 400 6670 -49.7 -59.7 30 10.0 -49.9 300 42 290.4 290.4 276.9 290.5 0.03 13 368 7216 -53.1 -63.1 29 10.0 -53.2 300 47 292.9 292.9 278.1 293.0 0.02 14 334 7842 -55.3 -65.3 28 10.0 -55.4 300 52 298.1 298.1 280.5 298.2 0.02 15 326 7997 -55.7 -65.7 28 10.0 -55.8 299 53 299.6 299.6 281.2 299.7 0.02 16 300 8530 -55.9 -65.9 28 10.0 -56.0 295 58 306.6 306.6 284.0 306.6 0.02 17 250 9690 -57.5 -67.5 27 10.0 -57.6 295 66 320.6 320.6 288.9 320.7 0.02 18 238 10000 -57.9 -67.9 27 10.0 -58.0 295 64 324.5 324.5 290.2 324.6 0.02 19 200 11100 -56.5 -67.5 24 11.0 -56.7 295 58 343.3 343.3 295.1 343.4 0.02 20 174 11981 -56.1 -68.1 21 12.0 -56.3 293 55 357.9 357.9 298.3 358.0 0.02 21 150 12920 -56.7 -68.7 21 12.0 -56.9 290 52 372.4 372.4 301.0 372.5 0.02 22 122 14226 -58.1 -72.1 15 14.0 -58.3 392.5 392.5 304.2 392.6 0.02 TRP 334 7842 -55.3 -65.3 28 10.0 -55.4 300 52 298.1 298.1 280.5 298.2 0.02 WND 250 9690 -57.5 -67.5 27 10.0 -57.6 295 66 320.6 320.6 288.9 320.7 0.02 Sounding variables and indices 1000-500 mb thick: 4958.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.07 inches Sfc-500 mean rel hum: 44.71 % Est. max temperature: -9.93 C = 14.13 F Sfc-Lift cond lev (LCL): 968.24 mb = 458.40 m = 1503.92 ft T: -22.63 C 700-500 lapse rate: 5.79 C/km ThetaE index: 0.00 C Layer 1020.0- -0.0 mb Conv cond level (CCL): 601.72 mb = 3896.57 m = 12783.85 ft Mean mixing ratio: 0.43 g/kg Conv temperature: 7.12 C = 44.81 F Cap Strength: 21.34 C Lifted Index: 25.80 C Risk: None Lifted Index @300 mb: 38.12 C Lifted Index @700 mb: 18.66 C Showalter Index: 15.66 C Risk: None Total Totals Index: 32.70 C Risk: None Vertical Totals Index: 18.60 C Cross Totals Index: 14.10 C K Index: -19.40 Risk: None Sweat Index: 55.00 Risk: None Energy Index: 4.05 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 38.24 J/kg Max Up Vert Vel: 8.75 m/s Conv Inhibition (B-): 21731.55 J/kg Cap Strength: 25.51 C Lift Cond Lev (LCL): 917.60 mb = 852.16 m = 2795.76 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 344 at 16 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 1020 79 340 1 0.3 -0.9 | 165 15 -3.9 14.3 1 1000 222 335 3 1.3 -2.7 | 167 13 -3.0 12.6 2 925 794 335 5 2.1 -4.5 | 169 11 -2.2 10.8 3 850 1409 325 11 6.3 -9.0 | 198 7 2.0 6.3 4 700 2831 320 21 13.5 -16.1 | 275 9 9.2 -0.8 5 500 5180 310 33 25.3 -21.2 | 286 22 21.0 -5.9 6 400 6670 300 42 36.4 -21.0 | 280 33 32.1 -5.7 7 334 7842 300 52 45.0 -26.0 | 285 42 40.8 -10.7 8 300 8530 295 58 52.6 -24.5 | 281 49 48.3 -9.2 9 250 9690 295 66 59.8 -27.9 | 283 57 55.5 -12.6 10 200 11100 295 58 52.6 -24.5 | 281 49 48.3 -9.2 11 150 12920 290 52 48.9 -17.8 | 273 45 44.6 -2.5 Wind Parameters Mean winds (0-6000m): 314.4 at 21.2 knts Storm direction: 344.4 at 15.9 knts Shear (0-3000m) pos: 0.0 neg: 3.7 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 113.6 deg Storm rel helicity (0-3000m) pos: 28.3 neg: 0.0 tot: 28.3 m^2/s^2 ave: 9.4 10^-3 m/s^2 rel: 0.66 Storm rel vorticity (0-3000m) horiz: 3.7 stream: 2.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.87 Bulk Shear: 44.10 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 ------------------------------------------------------------------------------- 500 335 3 167 13| 0.0 3.3 3.3| 2.5 0.0 2.5 5.0 0.22| 3.3 0.7 1000 334 4 168 12| 0.0 3.5 3.5| 6.6 0.0 6.6 6.6 0.34| 3.5 1.2 1500 329 6 174 10| 0.0 3.9 3.9| 13.6 0.0 13.6 9.1 0.53| 3.9 2.1 2000 327 8 181 8| 0.0 3.8 3.8| 19.0 0.0 19.0 9.5 0.64| 3.8 2.5 2500 325 10 192 7| 0.0 3.8 3.8| 24.2 0.0 24.2 9.7 0.68| 3.8 2.6 3000 323 12 205 6| 0.0 3.7 3.7| 28.3 0.0 28.3 9.4 0.66| 3.7 2.4 4000 321 15 235 6| 0.0 3.4 3.4| 32.9 0.0 32.9 8.2 0.58| 3.5 2.0 5000 317 18 257 8| 0.0 3.3 3.3| 34.5 -0.0 34.5 6.9 0.49| 3.4 1.6 6000 314 21 267 11| 0.0 3.2 3.2| 34.5 -9.3 25.2 4.2 0.37| 3.4 1.2 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20251207.12.gif