UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041700.upa.cvt Date: 0000Z 17 APR 25 Searching for U3921... Searching the city database file for: U3921 ... Date:0000Z 17 APR 25 Station: U3921 WMO ident: 23921 Latitude: 60.68 Longitude: 60.43 ------------------------------------------------------------------------------- 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 1008 98 -1.7 -9.7 54 8.0 -4.1 305 5 270.8 271.1 268.5 275.8 1.81 1 1000 161 -1.9 -10.9 50 9.0 -4.6 300 9 271.2 271.5 268.6 275.9 1.66 2 925 775 -6.7 -14.7 53 8.0 -8.8 315 31 272.5 272.7 268.8 276.2 1.32 3 850 1428 -12.3 -22.3 43 10.0 -14.2 330 36 273.3 273.4 268.3 275.5 0.75 4 703 2845 -22.9 -33.9 36 11.0 -24.1 330 42 276.8 276.8 269.8 277.7 0.31 5 700 2876 -23.3 -34.3 36 11.0 -24.5 330 42 276.7 276.7 269.7 277.6 0.30 6 634 3593 -28.3 -44.3 20 16.0 -29.4 329 46 278.9 279.0 270.7 279.3 0.12 7 587 4140 -32.3 -42.3 36 10.0 -32.9 327 49 280.5 280.5 271.7 281.0 0.16 8 556 4521 -33.5 -41.5 44 8.0 -34.0 327 52 283.5 283.5 273.5 284.0 0.18 9 511 5110 -36.3 -46.3 35 10.0 -36.8 325 55 287.0 287.0 275.3 287.4 0.12 10 500 5260 -37.3 -47.3 35 10.0 -37.8 325 56 287.6 287.6 275.6 287.9 0.11 11 422 6419 -41.9 -53.9 26 12.0 -42.3 334 67 296.0 296.0 279.6 296.2 0.06 12 411 6597 -42.7 -54.7 26 12.0 -43.1 335 69 297.2 297.2 280.2 297.4 0.06 13 400 6780 -43.5 -55.5 25 12.0 -43.9 330 66 298.5 298.5 280.7 298.6 0.05 14 359 7495 -48.1 -61.1 21 13.0 -48.4 330 66 301.7 301.7 282.1 301.8 0.03 15 301 8658 -45.1 -59.1 19 14.0 -45.6 330 62 321.5 321.5 289.3 321.7 0.04 16 300 8680 -45.3 -59.3 19 14.0 -45.7 330 62 321.5 321.5 289.3 321.7 0.04 17 250 9900 -45.5 -62.5 13 17.0 -46.0 330 50 338.4 338.4 294.0 338.6 0.03 18 225 10601 -46.1 -64.1 11 18.0 -46.7 328 50 347.9 347.9 296.2 348.0 0.03 19 200 11390 -42.3 -63.3 8 21.0 -43.3 325 50 365.8 365.8 299.8 366.0 0.04 20 169 12521 -43.1 -67.1 5 24.0 -44.2 319 41 382.5 382.5 302.6 382.6 0.03 21 150 13310 -49.1 -74.1 4 25.0 -49.8 315 35 385.5 385.5 303.1 385.5 0.01 22 148 13398 -49.5 -74.5 4 25.0 -50.2 316 35 386.3 386.3 303.2 386.3 0.01 23 108 15472 -46.3 -72.3 4 26.0 -47.5 335 25 428.7 428.7 308.7 428.8 0.02 24 100 15980 -48.9 -73.9 4 25.0 -49.9 340 23 433.2 433.2 309.2 433.3 0.02 25 93 16453 -51.3 -71.3 7 20.0 -52.1 341 22 437.6 437.6 309.7 437.7 0.03 26 75 17858 -48.1 -69.1 7 21.0 -49.5 344 18 472.1 472.1 312.8 472.3 0.05 27 70 18310 -49.5 -69.5 8 20.0 -50.7 345 17 478.5 478.5 313.4 478.8 0.05 28 50 20510 -50.7 -70.7 8 20.0 -52.2 330 23 524.0 524.0 316.6 524.4 0.06 29 42 21650 -49.3 -69.3 8 20.0 -51.2 554.3 554.3 318.3 554.8 0.08 TRP 359 7495 -48.1 -61.1 21 13.0 -48.4 330 66 301.7 301.7 282.1 301.8 0.03 WND 411 6597 -42.7 -54.7 26 12.0 -43.1 335 69 297.2 297.2 280.2 297.4 0.06 Sounding variables and indices 1000-500 mb thick: 5099.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 39.06 % Est. max temperature: 0.65 C = 33.17 F Sfc-Lift cond lev (LCL): 888.75 mb = 1083.71 m = 3555.44 ft T: -9.35 C 700-500 lapse rate: 5.87 C/km ThetaE index: 0.73 C Layer 850.0- 703.0 mb Conv cond level (CCL): 808.80 mb = 1798.72 m = 5901.24 ft Mean mixing ratio: 1.47 g/kg Conv temperature: 1.70 C = 35.06 F Cap Strength: 9.38 C Lifted Index: 9.73 C Risk: None Lifted Index @300 mb: 32.26 C Lifted Index @700 mb: 2.40 C Showalter Index: 10.20 C Risk: None Total Totals Index: 40.00 C Risk: None Vertical Totals Index: 25.00 C Cross Totals Index: 15.00 C K Index: -8.30 Risk: None Sweat Index: 128.00 Risk: None Energy Index: 2.55 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.51 J/kg Max Up Vert Vel: 2.65 m/s Conv Inhibition (B-): 40856.22 J/kg Cap Strength: 9.50 C Lift Cond Lev (LCL): 837.78 mb = 1536.04 m = 5039.44 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 357 at 33 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 1008 98 305 5 4.1 -2.9 | 185 30 2.4 29.7 1 1000 161 300 9 7.8 -4.5 | 192 29 6.1 28.0 2 925 775 315 31 21.9 -21.9 | 242 23 20.2 10.6 3 850 1428 330 36 18.0 -31.2 | 265 16 16.3 1.4 4 700 2876 330 42 21.0 -36.4 | 281 20 19.3 -3.8 5 500 5260 325 56 32.1 -45.9 | 294 33 30.4 -13.3 6 411 6597 335 69 29.2 -62.5 | 318 41 27.4 -30.0 7 400 6780 330 66 33.0 -57.2 | 308 40 31.3 -24.6 8 359 7495 330 66 33.0 -57.2 | 308 40 31.3 -24.6 9 300 8680 330 62 31.0 -53.7 | 306 36 29.3 -21.1 10 250 9900 330 50 25.0 -43.3 | 295 26 23.3 -10.8 11 200 11390 325 50 28.7 -41.0 | 287 28 27.0 -8.4 12 150 13310 315 35 24.7 -24.7 | 251 24 23.0 7.8 13 100 15980 340 23 7.9 -21.6 | 209 13 6.1 10.9 14 70 18310 345 17 4.4 -16.4 | 189 16 2.7 16.1 15 50 20510 330 23 11.5 -19.9 | 218 16 9.8 12.6 Wind Parameters Mean winds (0-6000m): 327.0 at 43.5 knts Storm direction: 357.0 at 32.6 knts Shear (0-3000m) pos: 5.5 neg: 1.1 tot: 6.7 10-3/s Storm rel Dir Shear (0-3000m): 98.7 deg Storm rel helicity (0-3000m) pos: 240.8 neg: 0.0 tot: 240.8 m^2/s^2 ave: 80.3 10^-3 m/s^2 rel: 0.89 Storm rel vorticity (0-3000m) horiz: 7.5 stream: 6.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.03 Bulk Shear: 113.13 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 ------------------------------------------------------------------------------- 500 307 16 205 25| 20.2 0.0 20.2|133.1 0.0 133.1 266.2 0.95| 20.6 19.6 1000 315 23 222 22| 14.8 0.0 14.8|194.0 0.0 194.0 194.0 0.93| 16.2 15.1 1500 320 27 233 19| 11.1 0.0 11.1|216.2 0.0 216.2 144.1 0.91| 12.8 11.7 2000 323 30 242 18| 8.3 0.5 8.8|224.3 0.0 224.3 112.1 0.91| 10.1 9.2 2500 325 32 249 18| 6.6 0.9 7.5|232.4 0.0 232.4 92.9 0.90| 8.5 7.7 3000 326 34 255 18| 5.5 1.1 6.7|240.8 0.0 240.8 80.3 0.89| 7.5 6.7 4000 327 37 265 18| 4.1 1.6 5.8|257.0 0.0 257.0 64.2 0.83| 6.4 5.4 5000 327 40 273 20| 3.3 1.9 5.2|270.6 0.0 270.6 54.1 0.77| 5.8 4.5 6000 327 43 280 22| 3.6 1.6 5.2|361.2 0.0 361.2 60.2 0.79| 5.8 4.6 Wrote GIF file: /home/apache/climate/data/raob//U3921/skewt/U3921.skewt.20250417.00.gif