UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042812.upa.cvt Date: 1200Z 28 APR 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 28 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 ------------------------------------------------------------------------------- 0 1000 -50 SFC 986 70 17.0 12.0 72 5.0 14.0 200 5 291.3 292.9 287.7 316.8 8.96 2 925 611 12.6 7.6 72 5.0 9.8 210 27 292.2 293.5 286.2 312.5 7.09 3 880 1027 9.4 4.6 72 4.8 6.8 225 31 293.1 294.2 285.5 310.6 6.05 4 850 1314 7.6 0.6 61 7.0 4.2 235 33 294.1 294.9 284.5 307.9 4.70 5 812 1689 5.2 0.2 70 5.0 2.8 236 34 295.4 296.3 285.1 309.5 4.78 6 809 1720 5.4 0.4 70 5.0 2.9 236 34 296.0 296.8 285.4 310.3 4.87 7 798 1832 5.6 -0.4 65 6.0 2.7 237 35 297.3 298.2 285.7 311.2 4.66 8 744 2400 0.4 -3.2 77 3.6 -1.2 238 36 297.7 298.4 285.2 309.8 4.06 9 742 2421 0.2 -3.4 77 3.6 -1.4 238 36 297.7 298.4 285.2 309.7 4.01 10 736 2486 -0.7 -4.8 74 4.1 -2.4 239 37 297.4 298.1 284.7 308.3 3.63 11 714 2729 0.2 -4.8 69 5.0 -2.0 239 37 301.0 301.7 286.2 312.4 3.75 12 700 2888 -0.7 -7.7 59 7.0 -3.6 240 38 301.7 302.3 285.7 311.1 3.06 13 698 2911 -0.9 -7.9 59 7.0 -3.7 240 38 301.7 302.3 285.7 311.0 3.02 14 665 3294 -3.3 -11.3 54 8.0 -6.2 239 38 303.2 303.7 285.6 310.8 2.42 15 651 3461 -4.5 -15.5 42 11.0 -8.1 239 38 303.7 304.1 285.1 309.3 1.76 16 630 3718 -4.9 -29.9 12 25.0 -10.6 238 38 306.1 306.2 284.5 307.9 0.51 17 619 3856 -6.3 -35.3 8 29.0 -12.0 238 38 306.1 306.1 284.2 307.2 0.31 18 500 5480 -19.3 -38.3 17 19.0 -22.0 235 38 309.5 309.6 285.5 310.5 0.28 19 400 7100 -31.7 -51.7 12 20.0 -33.0 220 38 313.8 313.8 286.8 314.1 0.08 20 328 8472 -43.5 -61.5 12 18.0 -44.0 220 42 315.9 315.9 287.4 316.0 0.03 21 324 8555 -44.1 -62.1 12 18.0 -44.6 220 42 316.2 316.2 287.5 316.3 0.03 22 300 9070 -45.7 -63.7 11 18.0 -46.2 220 44 320.9 320.9 289.0 321.0 0.02 23 297 9137 -45.7 -63.7 11 18.0 -46.2 220 44 321.9 321.9 289.3 322.0 0.02 24 294 9204 -47.1 -64.1 13 17.0 -47.5 221 45 320.8 320.8 289.0 320.9 0.02 25 250 10270 -49.7 -67.7 10 18.0 -50.1 225 52 332.2 332.2 292.3 332.2 0.02 26 248 10323 -49.9 -67.9 10 18.0 -50.3 230 54 332.6 332.6 292.4 332.7 0.02 27 247 10349 -49.9 -67.9 10 18.0 -50.3 230 54 333.0 333.0 292.6 333.1 0.02 28 200 11730 -49.7 -70.7 7 21.0 -50.2 225 52 354.1 354.1 297.5 354.1 0.01 29 177 12532 -50.7 -73.7 5 23.0 -51.2 227 48 365.0 365.0 299.7 365.1 0.01 30 150 13620 -49.1 -73.1 4 24.0 -49.8 230 42 385.5 385.5 303.1 385.5 0.01 31 146 13797 -47.7 -72.7 4 25.0 -48.5 230 41 390.9 390.9 303.9 390.9 0.01 32 131 14504 -50.9 -75.9 4 25.0 -51.5 232 38 397.5 397.5 304.9 397.5 0.01 33 100 16250 -51.7 -76.7 3 25.0 -52.5 235 29 427.8 427.8 308.6 427.9 0.01 34 78 17843 -56.3 -79.3 4 23.0 -56.9 232 23 449.8 449.8 310.8 449.9 0.01 35 75 18091 -57.5 -80.5 4 23.0 -58.0 231 23 452.4 452.4 311.1 452.4 0.01 36 71 18440 -53.3 -77.3 4 24.0 -54.2 230 21 468.5 468.5 312.5 468.5 0.01 37 63 19200 -58.5 -81.5 4 23.0 -59.0 232 18 473.3 473.3 312.9 473.3 0.01 38 51 20534 -56.3 -79.3 4 23.0 -57.2 235 13 507.9 507.9 315.5 508.0 0.01 39 50 20660 -56.7 -79.7 4 23.0 -57.5 235 13 509.9 509.9 315.7 509.9 0.01 40 45 21328 -56.5 -79.5 4 23.0 -57.4 233 12 525.9 525.9 316.7 526.0 0.02 41 31 23709 -53.1 -77.1 4 24.0 -54.9 226 7 594.3 594.3 320.3 594.5 0.03 42 30 23920 -54.3 -78.3 4 24.0 -55.9 225 7 596.6 596.6 320.5 596.8 0.03 43 22 25915 -55.9 -79.9 3 24.0 -57.7 301 4 647.2 647.2 322.6 647.4 0.03 44 20 26530 -52.3 -77.3 3 25.0 -55.1 325 3 676.1 676.1 323.6 676.5 0.05 45 19 26863 -51.3 -76.3 4 25.0 -54.4 689.2 689.2 324.1 689.7 0.06 46 17 27585 -51.3 -76.3 4 25.0 -54.7 711.5 711.5 324.8 712.1 0.07 47 17 27585 -48.1 -74.1 3 26.0 -52.5 721.7 721.8 325.1 722.6 0.10 48 15 28406 -50.3 -75.3 4 25.0 -54.3 740.7 740.8 325.7 741.6 0.09 49 14 28860 -46.9 -72.9 4 26.0 -52.3 767.0 767.1 326.4 768.4 0.14 50 14 28860 -44.5 -70.5 4 26.0 -50.8 775.1 775.2 326.7 777.1 0.20 51 11 30474 -44.9 -70.9 4 26.0 -52.0 829.0 829.2 328.0 831.5 0.24 TRP 248 10323 -49.9 -67.9 10 18.0 -50.3 230 54 332.6 332.6 292.4 332.7 0.02 WND Sounding variables and indices 1000-500 mb thick: 5530.00 m Freezing level: 740.67 mb = 2435.70 m = 7991.06 ft Freezing level: 718.89 mb = 2675.36 m = 8777.33 ft Freezing level: 710.89 mb = 2764.63 m = 9070.20 ft Wetbulb zero: 760.91 mb = 2217.50 m = 7275.18 ft Precipitable water: 0.72 inches Sfc-500 mean rel hum: 46.44 % Est. max temperature: 20.25 C = 68.46 F Sfc-Lift cond lev (LCL): 915.18 mb = 700.03 m = 2296.66 ft T: 11.92 C 700-500 lapse rate: 7.18 C/km ThetaE index: 8.89 C Layer 925.0- 812.0 mb Conv cond level (CCL): 839.02 mb = 1420.76 m = 4661.22 ft Mean mixing ratio: 7.47 g/kg Conv temperature: 20.15 C = 68.27 F Cap Strength: 2.79 C Lifted Index: 0.90 C Risk: Showers probable Lifted Index @300 mb: 5.61 C Lifted Index @700 mb: 1.74 C Showalter Index: 4.35 C Risk: None Total Totals Index: 46.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.90 C Cross Totals Index: 19.90 C K Index: 20.50 Risk: 20-40 % chance of thunderstorms Sweat Index: 111.20 Risk: None Energy Index: 0.61 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 7.06 J/kg Max Up Vert Vel: 3.76 m/s Conv Inhibition (B-): 58.34 J/kg Cap Strength: 2.74 C Lift Cond Lev (LCL): 868.95 mb = 1131.60 m = 3712.57 ft Lev Free Conv (LFC): 743.95 mb = 2400.13 m = 7874.35 ft Equ Level (EL): 723.95 mb = 2618.47 m = 8590.69 ft B at Equ Level: 4.48 J/kg Max Parcel Lev (MPL): 713.95 mb = 2729.89 m = 8956.21 ft Wind level data Storm motion: 265 at 26 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 ---------------------------------------------------------- 0 986 70 200 5 1.7 4.7 | 95 24 -24.1 2.2 1 925 611 210 27 13.5 23.4 | 149 24 -12.3 20.9 2 850 1314 235 33 27.0 18.9 | 184 17 1.2 16.5 3 700 2888 240 38 32.9 19.0 | 203 18 7.1 16.5 4 500 5480 235 38 31.1 21.8 | 195 20 5.3 19.3 5 400 7100 220 38 24.4 29.1 | 177 27 -1.4 26.7 6 300 9070 220 44 28.3 33.7 | 184 31 2.5 31.2 7 250 10270 225 52 36.8 36.8 | 198 36 10.9 34.3 8 248 10323 230 54 41.4 34.7 | 206 36 15.5 32.3 9 200 11730 225 52 36.8 36.8 | 198 36 10.9 34.3 10 150 13620 230 42 32.2 27.0 | 194 25 6.3 24.5 11 100 16250 235 29 23.8 16.6 | 172 14 -2.1 14.2 12 70 18540 230 21 16.1 13.5 | 139 15 -9.7 11.0 13 50 20660 235 13 10.6 7.5 | 108 16 -15.2 5.0 14 30 23920 225 7 4.9 4.9 | 97 21 -20.9 2.5 15 20 26530 325 3 1.7 -2.5 | 78 25 -24.1 -4.9 Wind Parameters Mean winds (0-6000m): 234.6 at 34.6 knts Storm direction: 264.6 at 25.9 knts Shear (0-3000m) pos: 5.9 neg: 0.0 tot: 5.9 10-3/s Storm rel Dir Shear (0-3000m): 107.3 deg Storm rel helicity (0-3000m) pos: 223.6 neg: -0.6 tot: 223.0 m^2/s^2 ave: 74.3 10^-3 m/s^2 rel: 0.93 Storm rel vorticity (0-3000m) horiz: 7.3 stream: 6.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.11 Bulk Shear: 64.42 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 ------------------------------------------------------------------------------- 500 208 15 120 22| 21.0 0.0 21.0|123.2 0.0 123.2 246.3 0.99| 21.1 20.9 1000 215 22 139 21| 13.6 0.0 13.6|176.7 0.0 176.7 176.7 0.95| 16.0 15.2 1500 223 26 152 18| 10.3 0.0 10.3|202.1 0.0 202.1 134.7 0.94| 12.8 12.0 2000 227 28 162 17| 8.1 0.0 8.1|210.2 0.0 210.2 105.1 0.94| 10.1 9.4 2500 230 30 169 17| 6.8 0.0 6.8|218.5 0.0 218.5 87.4 0.94| 8.4 7.9 3000 232 31 175 17| 5.9 0.0 5.9|223.6 -0.6 223.0 74.3 0.93| 7.3 6.8 4000 234 33 182 17| 4.4 0.2 4.6|223.6 -5.5 218.0 54.5 0.88| 5.6 4.9 5000 235 34 186 17| 3.5 0.3 3.8|223.6 -10.6 212.9 42.6 0.83| 4.6 3.9 6000 235 35 188 18| 2.9 0.6 3.5|223.6 -28.2 195.4 32.6 0.70| 4.2 2.9 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20250428.12.gif