UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for U9231... Searching the city database file for: U9231 ... Date:1200Z 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 ------------------------------------------------------------------------------- SFC 1000 74 -5.3 -8.2 80 2.9 -6.2 290 3 267.9 268.2 267.0 273.4 2.06 1 925 680 -10.3 -12.3 85 2.0 -10.8 285 5 268.8 269.0 266.8 273.2 1.60 2 886 1007 -12.7 -14.6 86 1.9 -13.2 285 6 269.6 269.9 267.0 273.5 1.39 3 850 1321 -11.3 -13.8 82 2.5 -11.9 285 7 274.3 274.6 270.4 278.7 1.55 4 700 2785 -22.3 -29.3 53 7.0 -23.2 280 11 277.8 277.9 270.7 279.3 0.48 5 665 3157 -24.7 -32.7 47 8.0 -25.6 279 12 279.2 279.3 271.4 280.3 0.37 6 556 4435 -30.1 -45.1 22 15.0 -31.1 277 16 287.5 287.5 275.6 287.9 0.12 7 504 5124 -33.3 -40.3 49 7.0 -33.8 275 19 291.8 291.8 277.9 292.5 0.23 8 500 5180 -33.7 -40.7 49 7.0 -34.2 275 19 292.0 292.0 278.0 292.7 0.22 9 400 6720 -42.3 -47.3 58 5.0 -42.5 275 23 300.0 300.0 281.5 300.5 0.13 10 376 7135 -44.3 -49.3 57 5.0 -44.5 276 24 302.7 302.7 282.7 303.1 0.11 11 320 8189 -53.9 -58.9 54 5.0 -54.0 279 26 303.7 303.7 283.0 303.9 0.04 12 300 8600 -56.1 -61.1 53 5.0 -56.2 280 27 306.3 306.3 284.0 306.4 0.03 13 268 9314 -60.1 -65.0 53 4.9 -60.2 280 29 310.5 310.5 285.5 310.6 0.02 14 250 9750 -59.9 -64.8 53 4.9 -60.0 285 31 317.0 317.0 287.8 317.1 0.03 15 200 11160 -55.5 -61.5 47 6.0 -55.6 285 35 344.9 344.9 295.6 345.1 0.05 16 193 11387 -55.3 -61.3 47 6.0 -55.5 286 36 348.7 348.7 296.4 349.0 0.05 17 150 12990 -57.3 -64.3 41 7.0 -57.5 290 40 371.4 371.4 300.8 371.6 0.04 18 100 15540 -60.3 -69.3 30 9.0 -60.5 295 48 411.2 411.2 306.7 411.4 0.03 19 96 15793 -60.3 -69.3 30 9.0 -60.5 295 48 416.0 416.1 307.3 416.2 0.04 20 70 17730 -64.7 -74.7 24 10.0 -64.9 295 50 446.0 446.0 310.5 446.1 0.02 21 50 19760 -69.7 -80.7 19 11.0 -69.8 290 56 479.2 479.2 313.4 479.3 0.01 22 40 21083 -72.1 -83.1 18 11.0 -72.2 286 59 504.8 504.8 315.3 504.9 0.01 23 33 22202 -77.3 -88.3 16 11.0 -77.4 282 61 519.6 519.6 316.3 519.6 0.00 24 30 22750 -76.4 -87.4 16 11.0 -76.5 280 62 536.3 536.3 317.3 536.4 0.01 25 29 22946 -76.1 -87.1 16 11.0 -76.2 542.4 542.4 317.6 542.5 0.01 TRP 268 9314 -60.1 -65.0 53 4.9 -60.2 280 29 310.5 310.5 285.5 310.6 0.02 WND 30 22750 -76.4 -87.4 16 11.0 -76.5 280 62 536.3 536.3 317.3 536.4 0.01 Sounding variables and indices 1000-500 mb thick: 5105.94 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.20 inches Sfc-500 mean rel hum: 56.73 % Est. max temperature: 1.16 C = 34.08 F Sfc-Lift cond lev (LCL): 955.04 mb = 431.60 m = 1416.01 ft T: -8.25 C 700-500 lapse rate: 4.76 C/km ThetaE index: 0.22 C Layer 925.0- 886.0 mb Conv cond level (CCL): 905.50 mb = 841.64 m = 2761.24 ft Mean mixing ratio: 1.75 g/kg Conv temperature: -3.95 C = 24.89 F Cap Strength: 15.43 C Lifted Index: 15.50 C Risk: None Lifted Index @300 mb: 23.39 C Lifted Index @700 mb: 5.51 C Showalter Index: 11.25 C Risk: None Total Totals Index: 42.30 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 19.90 C K Index: 1.60 Risk: None Sweat Index: 33.00 Risk: None Energy Index: 2.83 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.33 J/kg Max Up Vert Vel: 2.94 m/s Conv Inhibition (B-): 41269.16 J/kg Cap Strength: 15.33 C Lift Cond Lev (LCL): 915.21 mb = 760.73 m = 2495.81 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 308 at 9 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 1000 74 290 3 2.8 -1.0 | 136 6 -4.5 4.7 1 1000 76 290 3 2.8 -1.0 | 136 6 -4.5 4.7 2 925 680 285 5 4.8 -1.3 | 151 5 -2.5 4.4 3 850 1321 285 7 6.8 -1.8 | 172 4 -0.6 3.9 4 700 2785 280 11 10.8 -1.9 | 223 5 3.5 3.8 5 500 5180 275 19 18.9 -1.7 | 251 12 11.6 4.1 6 400 6720 275 23 22.9 -2.0 | 257 16 15.6 3.7 7 300 8600 280 27 26.6 -4.7 | 267 19 19.3 1.0 8 268 9314 280 29 28.6 -5.0 | 268 21 21.2 0.7 9 250 9750 285 31 29.9 -8.0 | 276 23 22.6 -2.3 10 200 11160 285 35 33.8 -9.1 | 277 27 26.5 -3.3 11 150 12990 290 40 37.6 -13.7 | 285 31 30.3 -8.0 12 100 15540 295 48 43.5 -20.3 | 292 39 36.2 -14.6 13 70 17730 295 50 45.3 -21.1 | 292 41 38.0 -15.4 14 50 19760 290 56 52.6 -19.2 | 287 47 45.3 -13.4 15 30 22750 280 62 61.1 -10.8 | 275 54 53.7 -5.1 Wind Parameters Mean winds (0-6000m): 278.0 at 12.4 knts Storm direction: 308.0 at 9.3 knts Shear (0-3000m) pos: 0.0 neg: 1.5 tot: 1.5 10-3/s Storm rel Dir Shear (0-3000m): 93.9 deg Storm rel helicity (0-3000m) pos: 9.1 neg: 0.0 tot: 9.1 m^2/s^2 ave: 3.0 10^-3 m/s^2 rel: 0.82 Storm rel vorticity (0-3000m) horiz: 1.6 stream: 1.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.44 Bulk Shear: 9.84 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 ------------------------------------------------------------------------------- 500 287 4 141 6| 0.0 1.7 1.7| 1.7 0.0 1.7 3.5 0.68| 1.7 1.2 1000 286 5 147 5| 0.0 1.7 1.7| 3.3 0.0 3.3 3.3 0.73| 1.7 1.2 1500 285 5 154 5| 0.0 1.6 1.6| 4.8 0.0 4.8 3.2 0.79| 1.6 1.3 2000 285 6 162 4| 0.0 1.6 1.6| 6.2 0.0 6.2 3.1 0.84| 1.6 1.3 2500 284 7 171 4| 0.0 1.5 1.5| 7.6 0.0 7.6 3.0 0.84| 1.5 1.3 3000 283 8 181 4| 0.0 1.5 1.5| 9.1 0.0 9.1 3.0 0.82| 1.6 1.3 4000 281 9 202 4| 0.0 1.6 1.6| 12.5 0.0 12.5 3.1 0.74| 1.6 1.2 5000 279 11 220 5| 0.0 1.6 1.6| 15.3 0.0 15.3 3.1 0.65| 1.6 1.1 6000 278 12 231 6| 0.0 1.6 1.6| 18.6 0.0 18.6 3.1 0.60| 1.6 1.0 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20251204.12.gif