UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041712.upa.cvt Date: 1200Z 17 APR 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 17 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 1010 71 4.6 -12.4 28 17.0 -0.8 310 9 277.0 277.2 271.8 281.1 1.46 1 1000 152 3.4 -14.6 25 18.0 -2.0 320 19 276.5 276.8 271.2 280.1 1.23 2 925 776 -2.5 -17.5 31 15.0 -6.4 330 31 276.8 276.9 271.0 279.8 1.04 3 850 1439 -8.9 -19.9 41 11.0 -11.3 320 31 276.8 277.0 270.9 279.5 0.93 4 797 1933 -13.7 -21.7 51 8.0 -15.3 322 33 276.8 277.0 270.7 279.3 0.84 5 726 2634 -19.9 -24.9 64 5.0 -20.7 324 37 277.5 277.7 270.9 279.6 0.70 6 711 2789 -20.9 -25.9 64 5.0 -21.7 325 37 278.1 278.2 271.2 280.1 0.65 7 700 2904 -21.9 -26.9 64 5.0 -22.6 325 38 278.2 278.3 271.2 280.1 0.60 8 637 3594 -25.3 -37.3 32 12.0 -26.5 325 40 282.0 282.0 272.8 282.8 0.24 9 605 3967 -26.5 -40.5 25 14.0 -27.7 325 41 284.8 284.8 274.2 285.4 0.18 10 599 4039 -27.3 -41.3 25 14.0 -28.5 325 42 284.7 284.7 274.1 285.2 0.17 11 550 4649 -31.1 -46.1 21 15.0 -32.0 325 44 287.2 287.2 275.4 287.6 0.11 12 500 5320 -34.5 -49.5 20 15.0 -35.3 325 46 291.0 291.0 277.3 291.3 0.08 13 484 5547 -35.5 -50.5 20 15.0 -36.2 325 46 292.5 292.5 278.0 292.7 0.08 14 454 5990 -37.9 -52.9 19 15.0 -38.5 325 45 294.9 294.9 279.1 295.1 0.06 15 448 6081 -38.5 -53.5 19 15.0 -39.1 325 45 295.2 295.2 279.3 295.4 0.06 16 415 6602 -42.3 -57.3 18 15.0 -42.8 325 44 296.9 296.9 280.0 297.0 0.04 17 400 6850 -44.3 -59.3 17 15.0 -44.7 325 44 297.4 297.4 280.3 297.5 0.03 18 376 7264 -45.1 -59.1 19 14.0 -45.4 325 48 301.7 301.7 282.1 301.8 0.04 19 357 7608 -48.7 -63.7 16 15.0 -49.0 325 52 301.3 301.3 281.9 301.4 0.02 20 352 7701 -47.1 -62.1 16 15.0 -47.4 325 52 304.7 304.7 283.3 304.8 0.03 21 334 8048 -47.9 -63.9 14 16.0 -48.2 323 54 308.2 308.2 284.7 308.3 0.02 22 300 8760 -45.3 -64.3 10 19.0 -45.8 320 56 321.5 321.5 289.2 321.6 0.02 23 292 8940 -44.7 -64.7 9 20.0 -45.3 319 55 324.9 324.9 290.3 324.9 0.02 24 250 9980 -43.3 -67.3 5 24.0 -44.0 315 48 341.7 341.7 294.7 341.8 0.02 25 220 10839 -44.1 -69.1 5 25.0 -44.9 312 46 353.2 353.2 297.3 353.3 0.02 26 201 11446 -43.3 -69.3 4 26.0 -44.2 310 44 363.7 363.7 299.4 363.8 0.02 27 200 11480 -43.7 -69.7 4 26.0 -44.6 310 44 363.6 363.6 299.4 363.6 0.02 28 163 12838 -47.1 -73.1 4 26.0 -47.9 310 38 379.8 379.8 302.2 379.8 0.01 29 158 13045 -44.5 -70.5 4 26.0 -45.6 310 37 387.6 387.6 303.5 387.7 0.02 30 150 13390 -45.9 -71.9 4 26.0 -46.9 310 35 391.0 391.0 303.9 391.0 0.02 31 146 13569 -47.1 -73.1 4 26.0 -48.0 391.9 391.9 304.1 392.0 0.01 32 108 15558 -48.7 -73.7 4 25.0 -49.7 424.2 424.2 308.2 424.3 0.02 TRP 357 7608 -48.7 -63.7 16 15.0 -49.0 325 52 301.3 301.3 281.9 301.4 0.02 WND Sounding variables and indices 1000-500 mb thick: 5168.00 m Freezing level: 956.78 mb = 511.59 m = 1678.43 ft Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 37.45 % Est. max temperature: 4.46 C = 40.03 F Sfc-Lift cond lev (LCL): 775.20 mb = 2141.57 m = 7026.07 ft T: -15.54 C 700-500 lapse rate: 5.22 C/km ThetaE index: 1.81 C Layer 1000.0- 726.0 mb Conv cond level (CCL): 733.63 mb = 2555.75 m = 8384.91 ft Mean mixing ratio: 1.14 g/kg Conv temperature: 5.11 C = 41.20 F Cap Strength: 6.79 C Lifted Index: 9.43 C Risk: None Lifted Index @300 mb: 29.45 C Lifted Index @700 mb: 0.76 C Showalter Index: 9.78 C Risk: None Total Totals Index: 40.20 C Risk: None Vertical Totals Index: 25.60 C Cross Totals Index: 14.60 C K Index: 0.70 Risk: None Sweat Index: 108.00 Risk: None Energy Index: 2.41 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.64 J/kg Max Up Vert Vel: 1.13 m/s Conv Inhibition (B-): 18330.31 J/kg Cap Strength: 9.30 C Lift Cond Lev (LCL): 742.35 mb = 2466.91 m = 8093.44 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 355 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 1010 71 310 9 6.9 -5.8 | 191 23 4.2 22.2 1 1000 152 320 19 12.2 -14.6 | 215 16 9.5 13.4 2 925 776 330 31 15.5 -26.8 | 265 13 12.8 1.2 3 850 1439 320 31 19.9 -23.7 | 256 18 17.3 4.3 4 700 2904 325 38 21.8 -31.1 | 279 19 19.1 -3.1 5 500 5320 325 46 26.4 -37.7 | 292 26 23.7 -9.7 6 400 6850 325 44 25.2 -36.0 | 290 24 22.6 -8.0 7 357 7608 325 52 29.8 -42.6 | 298 31 27.2 -14.6 8 300 8760 320 56 36.0 -42.9 | 294 37 33.3 -14.9 9 250 9980 315 48 33.9 -33.9 | 281 32 31.3 -5.9 10 200 11480 310 44 33.7 -28.3 | 271 31 31.0 -0.3 11 150 13390 310 35 26.8 -22.5 | 257 25 24.1 5.5 Wind Parameters Mean winds (0-6000m): 324.5 at 37.5 knts Storm direction: 354.5 at 28.1 knts Shear (0-3000m) pos: 4.5 neg: 1.0 tot: 5.4 10-3/s Storm rel Dir Shear (0-3000m): 89.7 deg Storm rel helicity (0-3000m) pos: 123.1 neg: -8.3 tot: 114.8 m^2/s^2 ave: 38.3 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 6.2 stream: 4.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.02 Bulk Shear: 33.63 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 22 224 15| 19.2 0.0 19.2| 71.3 0.0 71.3 142.7 0.86| 19.5 16.7 1000 326 26 241 13| 9.6 2.0 11.6| 85.6 -3.4 82.2 82.2 0.77| 13.1 10.0 1500 325 28 248 14| 6.4 1.9 8.3| 88.0 -8.3 79.7 53.1 0.65| 9.9 6.5 2000 324 29 252 15| 5.4 1.4 6.9|100.2 -8.3 91.9 45.9 0.68| 8.1 5.5 2500 324 30 257 16| 4.9 1.1 6.0|112.6 -8.3 104.3 41.7 0.70| 7.0 4.9 3000 324 31 261 16| 4.5 1.0 5.4|123.1 -8.3 114.8 38.3 0.71| 6.2 4.5 4000 324 34 268 17| 3.3 1.1 4.4|135.2 -8.3 126.9 31.7 0.71| 5.1 3.6 5000 324 36 274 18| 2.7 1.2 3.9|147.4 -8.3 139.1 27.8 0.70| 4.4 3.1 6000 325 38 278 19| 2.2 1.0 3.2|150.1 -11.6 138.5 23.1 0.67| 3.8 2.6 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20250417.12.gif