UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041612.upa.cvt Date: 1200Z 16 APR 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 16 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 1001 69 17.0 1.0 34 16.0 9.0 250 9 290.1 290.8 282.1 301.9 4.10 1 1000 77 16.8 0.8 34 16.0 8.9 250 9 290.0 290.7 282.0 301.7 4.05 2 979 256 12.8 -0.2 41 13.0 6.6 253 16 287.7 288.4 280.8 298.7 3.85 3 925 729 9.4 -1.6 46 11.0 4.4 260 35 288.9 289.6 281.1 299.5 3.67 4 850 1421 2.4 -3.6 65 6.0 -0.2 270 36 288.7 289.3 280.7 298.6 3.44 5 796 1947 -2.9 -5.8 80 2.9 -4.0 268 37 288.5 289.0 280.3 297.5 3.11 6 759 2323 -4.7 -6.3 89 1.6 -5.3 267 37 290.5 291.0 281.2 299.7 3.14 7 757 2344 -4.9 -6.5 89 1.6 -5.5 267 37 290.5 291.0 281.1 299.6 3.10 8 700 2957 -7.9 -10.2 84 2.3 -8.7 265 38 293.7 294.2 281.9 301.3 2.51 9 685 3125 -8.9 -11.5 81 2.6 -9.8 265 39 294.4 294.9 282.0 301.4 2.31 10 500 5480 -25.7 -29.7 69 4.0 -26.3 270 52 301.7 301.8 283.0 303.9 0.65 11 469 5944 -28.5 -32.9 66 4.4 -29.1 267 59 303.8 303.9 283.6 305.5 0.51 12 448 6272 -31.1 -35.3 66 4.2 -31.6 265 63 304.5 304.6 283.8 306.0 0.42 13 441 6383 -32.7 -38.7 55 6.0 -33.3 264 65 303.9 303.9 283.4 304.9 0.30 14 429 6578 -33.3 -39.3 55 6.0 -33.8 263 68 305.5 305.6 284.0 306.6 0.29 15 400 7070 -35.3 -45.3 35 10.0 -36.0 260 75 309.1 309.1 285.2 309.7 0.17 16 393 7193 -35.3 -46.3 32 11.0 -36.1 259 77 310.7 310.7 285.8 311.2 0.15 17 380 7426 -36.5 -47.5 31 11.0 -37.2 257 79 312.1 312.1 286.2 312.6 0.14 18 372 7572 -39.9 -48.9 38 9.0 -40.4 256 81 309.5 309.5 285.3 309.9 0.12 19 365 7701 -40.2 -48.9 39 8.8 -40.6 255 83 310.8 310.9 285.8 311.3 0.12 20 340 8183 -41.1 -49.1 42 8.0 -41.5 255 82 315.9 315.9 287.6 316.4 0.13 21 309 8825 -45.3 -54.3 36 9.0 -45.6 255 81 318.8 318.8 288.5 319.1 0.08 22 300 9020 -48.9 -58.9 30 10.0 -49.1 255 81 316.4 316.4 287.6 316.6 0.05 23 274 9611 -51.1 -61.1 29 10.0 -51.3 255 79 321.6 321.6 289.3 321.7 0.04 24 273 9634 -51.3 -61.3 29 10.0 -51.5 255 79 321.6 321.6 289.3 321.7 0.04 25 250 10200 -54.7 -64.7 28 10.0 -54.9 255 77 324.7 324.7 290.2 324.8 0.03 26 248 10252 -54.7 -64.7 28 10.0 -54.9 255 77 325.5 325.5 290.5 325.6 0.03 27 242 10409 -55.7 -65.7 28 10.0 -55.9 255 75 326.3 326.3 290.7 326.4 0.02 28 241 10435 -57.3 -67.3 27 10.0 -57.4 255 75 324.3 324.3 290.0 324.3 0.02 29 218 11078 -53.7 -63.7 28 10.0 -53.9 263 65 339.3 339.3 294.1 339.4 0.03 30 200 11640 -48.9 -59.9 27 11.0 -49.3 270 56 355.3 355.3 297.8 355.6 0.06 31 157 13222 -49.7 -64.7 16 15.0 -50.3 287 46 379.4 379.5 302.2 379.6 0.04 32 150 13520 -48.5 -64.5 14 16.0 -49.1 290 44 386.5 386.5 303.3 386.7 0.04 33 100 16150 -52.9 -70.9 10 18.0 -53.5 280 27 425.5 425.5 308.3 425.7 0.03 34 87 17049 -52.5 -70.5 10 18.0 -53.2 286 25 443.6 443.6 310.3 443.8 0.03 35 76 17918 -54.3 -72.3 9 18.0 -55.0 292 22 457.3 457.3 311.5 457.5 0.03 36 76 17918 -51.7 -69.7 10 18.0 -52.6 292 22 462.8 462.8 312.0 463.0 0.04 37 70 18450 -52.7 -71.7 8 19.0 -53.6 295 21 471.6 471.7 312.8 471.8 0.03 38 63 19130 -51.9 -70.9 8 19.0 -52.9 306 17 487.8 487.8 314.1 488.1 0.04 39 60 19444 -54.3 -73.3 8 19.0 -55.2 311 16 489.3 489.3 314.2 489.5 0.03 40 55 20003 -51.7 -70.7 9 19.0 -52.9 320 12 507.6 507.6 315.5 507.9 0.05 41 50 20620 -51.9 -70.9 8 19.0 -53.2 330 9 521.2 521.2 316.4 521.5 0.05 42 41 21908 -52.5 -71.5 8 19.0 -53.9 347 13 550.1 550.1 318.1 550.5 0.06 43 36 22748 -54.1 -73.1 8 19.0 -55.5 359 15 566.8 566.8 319.0 567.2 0.05 44 35 22930 -51.3 -71.3 7 20.0 -53.2 1 16 578.7 578.7 319.6 579.2 0.07 45 31 23717 -53.3 -73.3 7 20.0 -55.0 12 18 593.7 593.8 320.3 594.2 0.06 46 30 23930 -50.7 -70.7 8 20.0 -52.9 15 19 606.4 606.5 320.9 607.1 0.09 47 29 24150 -50.5 -70.5 8 20.0 -52.8 18 19 612.9 612.9 321.2 613.6 0.10 48 26 24857 -52.5 -72.5 7 20.0 -54.6 26 20 626.6 626.7 321.8 627.3 0.08 49 24 25371 -53.9 -72.9 8 19.0 -55.9 32 20 637.1 637.1 322.2 637.7 0.08 50 23 25643 -53.3 -73.3 7 20.0 -55.5 35 20 646.7 646.7 322.6 647.3 0.08 51 23 25643 -50.5 -70.5 8 20.0 -53.3 35 20 654.9 654.9 322.9 655.9 0.12 52 20 26550 -51.7 -71.7 7 20.0 -54.5 45 21 677.9 678.0 323.7 678.9 0.12 53 14 28852 -53.9 -72.9 8 19.0 -56.9 743.3 743.3 325.8 744.6 0.14 54 12 29849 -50.9 -70.9 8 20.0 -55.1 787.4 787.5 327.0 789.6 0.22 55 11 30419 -47.9 -67.9 8 20.0 -53.4 818.1 818.3 327.8 822.0 0.37 TRP 241 10435 -57.3 -67.3 27 10.0 -57.4 255 75 324.3 324.3 290.0 324.3 0.02 WND 365 7701 -40.2 -48.9 39 8.8 -40.6 255 83 310.8 310.9 285.8 311.3 0.12 Sounding variables and indices 1000-500 mb thick: 5403.00 m Freezing level: 825.55 mb = 1659.14 m = 5443.32 ft Wetbulb zero: 852.59 mb = 1396.07 m = 4580.22 ft Precipitable water: 0.56 inches Sfc-500 mean rel hum: 70.85 % Est. max temperature: 15.60 C = 60.08 F Sfc-Lift cond lev (LCL): 786.79 mb = 2038.95 m = 6689.38 ft T: -3.34 C 700-500 lapse rate: 7.06 C/km ThetaE index: 3.21 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 783.28 mb = 2074.27 m = 6805.25 ft Mean mixing ratio: 3.77 g/kg Conv temperature: 16.09 C = 60.95 F Cap Strength: 2.04 C Lifted Index: 3.64 C Risk: None Lifted Index @300 mb: 12.13 C Lifted Index @700 mb: 1.87 C Showalter Index: 4.22 C Risk: None Total Totals Index: 50.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.10 C Cross Totals Index: 22.10 C K Index: 22.20 Risk: 20-40 % chance of thunderstorms Sweat Index: 148.00 Risk: None Energy Index: 1.05 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.43 J/kg Max Up Vert Vel: 2.98 m/s Conv Inhibition (B-): 53150.48 J/kg Cap Strength: 3.50 C Lift Cond Lev (LCL): 789.83 mb = 2008.39 m = 6589.11 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 297 at 31 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 1001 69 250 9 8.5 3.1 | 132 25 -18.7 16.9 1 1000 77 250 9 8.5 3.1 | 132 25 -18.7 16.9 2 925 729 260 35 34.5 6.1 | 200 21 7.3 19.9 3 850 1421 270 36 36.0 -0.0 | 212 16 8.8 13.8 4 700 2957 265 38 37.9 3.3 | 212 20 10.7 17.2 5 500 5480 270 52 52.0 -0.0 | 241 28 24.8 13.8 6 400 7070 260 75 73.9 13.0 | 240 54 46.7 26.9 7 365 7701 255 83 80.2 21.5 | 236 64 53.0 35.3 8 300 9020 255 81 78.2 21.0 | 236 62 51.0 34.8 9 250 10200 255 77 74.4 19.9 | 234 58 47.2 33.8 10 241 10435 255 75 72.4 19.4 | 234 56 45.2 33.3 11 200 11640 270 56 56.0 -0.0 | 244 32 28.8 13.8 12 150 13520 290 44 41.3 -15.0 | 275 14 14.1 -1.2 13 100 16150 280 27 26.6 -4.7 | 176 9 -0.6 9.2 14 70 18450 295 21 19.0 -8.9 | 121 10 -8.2 5.0 15 50 20620 330 9 4.5 -7.8 | 105 23 -22.7 6.1 16 30 23930 15 19 -4.9 -18.4 | 82 32 -32.1 -4.5 17 20 26550 45 21 -14.8 -14.8 | 89 42 -42.0 -1.0 Wind Parameters Mean winds (0-6000m): 267.0 at 40.7 knts Storm direction: 297.0 at 30.5 knts Shear (0-3000m) pos: 4.8 neg: 0.6 tot: 5.4 10-3/s Storm rel Dir Shear (0-3000m): 81.4 deg Storm rel helicity (0-3000m) pos: 164.5 neg: -0.9 tot: 163.6 m^2/s^2 ave: 54.5 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 6.3 stream: 5.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.06 Bulk Shear: 68.27 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 ------------------------------------------------------------------------------- 500 256 19 154 21| 20.3 0.0 20.3|106.8 0.0 106.8 213.7 0.95| 20.4 19.3 1000 260 26 176 18| 13.8 0.0 13.8|151.7 0.0 151.7 151.7 0.93| 15.0 14.0 1500 263 30 187 17| 9.6 0.0 9.6|161.5 -0.0 161.5 107.7 0.90| 11.2 10.0 2000 265 31 193 17| 7.2 0.3 7.5|161.5 -0.2 161.3 80.7 0.86| 8.7 7.5 2500 265 33 198 17| 5.7 0.5 6.2|161.5 -0.5 161.0 64.4 0.83| 7.2 6.0 3000 265 33 200 18| 4.8 0.6 5.4|164.5 -0.9 163.6 54.5 0.81| 6.3 5.1 4000 266 35 206 18| 4.3 0.5 4.8|193.2 -0.9 192.3 48.1 0.82| 5.4 4.4 5000 266 38 213 19| 4.0 0.4 4.4|223.5 -0.9 222.6 44.5 0.81| 5.0 4.0 6000 267 41 220 21| 3.7 1.0 4.6|241.2 -0.9 240.3 40.1 0.69| 5.1 3.6 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20250416.12.gif