UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041912.upa.cvt Date: 1200Z 19 APR 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 19 APR 25 Station: U8661 WMO ident: 28661 Latitude: 55.47 Longitude: 65.40 ------------------------------------------------------------------------------- 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 1005 71 11.6 0.6 47 11.0 6.4 210 5 284.3 285.0 279.4 295.6 3.97 1 1000 113 11.0 -1.0 43 12.0 5.6 210 7 284.1 284.8 278.7 294.2 3.55 2 926 747 6.0 -3.0 52 9.0 2.2 245 17 285.4 285.9 279.0 294.8 3.30 3 925 756 6.0 -3.0 52 9.0 2.2 245 17 285.4 286.0 279.0 294.9 3.31 4 850 1446 3.6 -2.4 65 6.0 1.0 320 25 289.9 290.6 281.7 300.9 3.77 5 820 1737 2.6 -4.4 60 7.0 -0.4 322 27 291.9 292.5 282.1 301.7 3.36 6 700 2993 -7.1 -12.0 68 4.9 -8.7 330 35 294.6 295.0 281.8 301.2 2.17 7 636 3733 -12.1 -17.1 66 5.0 -13.5 333 43 297.1 297.4 282.2 302.0 1.57 8 633 3769 -12.1 -17.1 66 5.0 -13.5 333 43 297.5 297.8 282.4 302.4 1.58 9 616 3978 -9.3 -26.3 24 17.0 -13.2 334 45 303.1 303.2 283.6 305.5 0.72 10 548 4873 -13.9 -34.9 15 21.0 -17.6 337 55 307.9 308.0 285.0 309.2 0.36 11 505 5486 -19.9 -38.9 17 19.0 -22.5 340 61 307.9 307.9 284.9 308.8 0.26 12 500 5560 -20.3 -38.3 18 18.0 -22.8 340 62 308.3 308.3 285.1 309.3 0.28 13 448 6361 -25.7 -39.7 26 14.0 -27.3 340 64 311.3 311.4 286.1 312.3 0.27 14 404 7100 -30.1 -44.1 24 14.0 -31.4 340 66 315.0 315.0 287.3 315.7 0.19 15 400 7170 -31.3 -47.3 19 16.0 -32.6 340 66 314.3 314.3 287.0 314.8 0.13 16 378 7568 -34.3 -45.3 32 11.0 -35.1 341 66 315.5 315.5 287.5 316.1 0.18 17 360 7905 -39.7 -47.7 42 8.0 -40.2 342 65 312.7 312.7 286.5 313.2 0.14 18 340 8293 -42.1 -49.1 46 7.0 -42.5 343 65 314.6 314.6 287.1 315.0 0.13 19 318 8743 -44.3 -51.3 46 7.0 -44.6 344 64 317.6 317.6 288.1 318.0 0.11 20 300 9130 -48.5 -55.5 44 7.0 -48.7 345 64 317.0 317.0 287.8 317.3 0.07 21 286 9444 -49.7 -56.7 44 7.0 -49.9 340 70 319.6 319.7 288.7 319.9 0.06 22 279 9605 -52.7 -59.7 42 7.0 -52.8 337 72 317.6 317.6 288.0 317.8 0.04 23 266 9910 -56.7 -64.7 36 8.0 -56.8 332 78 316.1 316.1 287.5 316.2 0.02 24 250 10300 -60.7 -68.7 34 8.0 -60.8 325 85 315.8 315.8 287.4 315.9 0.01 25 247 10376 -60.7 -68.7 34 8.0 -60.8 332 85 316.9 316.9 287.8 317.0 0.01 26 236 10659 -63.6 -71.6 33 8.0 -63.6 360 87 316.7 316.7 287.7 316.8 0.01 27 234 10711 -64.1 -72.1 33 8.0 -64.1 359 86 316.7 316.7 287.7 316.7 0.01 28 200 11680 -63.3 -71.3 33 8.0 -63.4 340 68 332.5 332.5 292.4 332.6 0.01 29 195 11836 -63.1 -71.1 33 8.0 -63.2 335.3 335.3 293.2 335.3 0.01 TRP WND 236 10659 -63.6 -71.6 33 8.0 -63.6 360 87 316.7 316.7 287.7 316.8 0.01 Sounding variables and indices 1000-500 mb thick: 5447.00 m Freezing level: 787.84 mb = 2073.59 m = 6803.02 ft Wetbulb zero: 828.69 mb = 1651.55 m = 5418.41 ft Precipitable water: 0.49 inches Sfc-500 mean rel hum: 47.27 % Est. max temperature: 16.87 C = 62.36 F Sfc-Lift cond lev (LCL): 850.15 mb = 1444.52 m = 4739.17 ft T: 3.61 C 700-500 lapse rate: 5.14 C/km ThetaE index: 1.35 C Layer 1000.0- 926.0 mb Conv cond level (CCL): 712.66 mb = 2850.75 m = 9352.72 ft Mean mixing ratio: 3.43 g/kg Conv temperature: 21.59 C = 70.87 F Cap Strength: 13.09 C Lifted Index: 12.38 C Risk: None Lifted Index @300 mb: 15.82 C Lifted Index @700 mb: 5.42 C Showalter Index: 8.04 C Risk: None Total Totals Index: 41.80 C Risk: None Vertical Totals Index: 23.90 C Cross Totals Index: 17.90 C K Index: 16.60 Risk: < 20 % chance of thunderstorms Sweat Index: 112.00 Risk: None Energy Index: 1.77 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.62 J/kg Max Up Vert Vel: 3.64 m/s Conv Inhibition (B-): 5609.23 J/kg Cap Strength: 13.04 C Lift Cond Lev (LCL): 816.28 mb = 1772.98 m = 5816.78 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 1 at 28 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 1005 71 210 5 2.5 4.3 | 185 33 2.8 32.8 1 1000 113 210 7 3.5 6.1 | 186 35 3.8 34.5 2 925 756 245 17 15.4 7.2 | 204 39 15.7 35.7 3 850 1446 320 25 16.1 -19.2 | 240 19 16.4 9.3 4 700 2993 330 35 17.5 -30.3 | 276 18 17.8 -1.8 5 500 5560 340 62 21.2 -58.3 | 324 37 21.5 -29.8 6 400 7170 340 66 22.6 -62.0 | 326 41 22.9 -33.5 7 300 9130 345 64 16.6 -61.8 | 333 37 16.9 -33.3 8 250 10300 325 85 48.8 -69.6 | 310 64 49.1 -41.2 9 236 10659 360 87 -0.0 -87.0 | 360 59 0.3 -58.5 10 200 11680 340 68 23.3 -63.9 | 326 43 23.6 -35.4 Wind Parameters Mean winds (0-6000m): 330.6 at 38.0 knts Storm direction: 0.6 at 28.5 knts Shear (0-3000m) pos: 6.6 neg: 0.0 tot: 6.6 10-3/s Storm rel Dir Shear (0-3000m): 93.5 deg Storm rel helicity (0-3000m) pos: 339.2 neg: 0.0 tot: 339.2 m^2/s^2 ave: 113.1 10^-3 m/s^2 rel: 0.79 Storm rel vorticity (0-3000m) horiz: 9.4 stream: 7.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.03 Bulk Shear: 230.34 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 ------------------------------------------------------------------------------- 500 226 10 192 36| 10.1 0.0 10.1| 81.0 0.0 81.0 162.1 0.80| 10.7 8.6 1000 247 14 201 36| 10.0 0.0 10.0|215.4 0.0 215.4 215.4 0.85| 13.5 11.4 1500 276 17 213 32| 9.6 0.0 9.6|286.2 0.0 286.2 190.8 0.74| 15.0 11.2 2000 295 20 222 27| 8.1 0.0 8.1|303.3 0.0 303.3 151.7 0.76| 12.2 9.3 2500 306 22 229 24| 7.2 0.0 7.2|320.6 0.0 320.6 128.3 0.78| 10.5 8.2 3000 312 24 236 22| 6.6 0.0 6.6|339.2 0.0 339.2 113.1 0.79| 9.4 7.5 4000 320 28 250 19| 6.3 0.0 6.3|388.8 0.0 388.8 97.2 0.80| 8.5 6.8 5000 326 33 267 19| 6.2 0.0 6.2|445.6 0.0 445.6 89.1 0.78| 7.9 6.2 6000 331 38 284 19| 5.6 0.1 5.7|480.4 0.0 480.4 80.1 0.76| 7.2 5.5 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20250419.12.gif