UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122100.upa.cvt Date: 0000Z 21 DEC 25 Searching for CYEV... Searching the city database file for: CYEV ... Date:0000Z 21 DEC 25 Station: CYEV WMO ident: 71957 Latitude: 68.30 Longitude: -133.48 Elevation: 68.00 ------------------------------------------------------------------------------- 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 1016 68 -28.5 -31.4 76 2.9 -28.7 315 12 243.5 243.6 243.4 244.3 0.27 1 1000 218 -29.3 -31.3 83 2.0 -29.5 320 20 243.9 243.9 243.7 244.6 0.28 2 991 282 -29.7 -31.1 88 1.4 -29.8 327 23 244.1 244.1 243.9 244.9 0.29 3 967 458 -27.1 -29.0 84 1.9 -27.3 338 23 248.4 248.5 248.1 249.4 0.36 4 934 708 -28.5 -28.9 96 0.4 -28.5 345 24 249.5 249.5 249.0 250.5 0.38 5 928 754 -28.1 -29.9 85 1.8 -28.2 345 25 250.3 250.4 249.7 251.3 0.34 6 925 777 -27.9 -29.4 87 1.5 -28.0 345 25 250.8 250.8 250.2 251.8 0.36 7 913 871 -28.5 -28.6 99 0.1 -28.5 345 26 251.1 251.2 250.6 252.2 0.40 8 902 958 -27.5 -29.4 84 1.9 -27.7 346 27 253.0 253.1 252.1 254.0 0.37 9 880 1135 -27.9 -29.8 84 1.9 -28.0 349 28 254.4 254.4 253.3 255.4 0.37 10 876 1168 -27.7 -31.6 69 3.9 -28.0 349 29 254.9 255.0 253.6 255.8 0.31 11 865 1259 -27.1 -30.3 74 3.2 -27.4 354 29 256.5 256.5 255.0 257.5 0.36 12 850 1385 -27.7 -31.8 68 4.1 -28.0 5 27 257.1 257.2 255.5 258.0 0.31 13 849 1393 -27.7 -31.9 67 4.2 -28.0 5 27 257.2 257.3 255.5 258.1 0.31 14 786 1948 -27.7 -33.7 57 6.0 -28.2 13 28 262.9 263.0 260.0 263.8 0.28 15 763 2161 -27.9 -31.5 71 3.6 -28.2 11 29 265.0 265.0 261.7 266.0 0.36 16 759 2199 -27.5 -33.5 57 6.0 -28.0 12 29 265.8 265.9 262.3 266.7 0.30 17 703 2748 -29.1 -39.1 37 10.0 -29.8 20 25 269.9 270.0 265.0 270.5 0.18 18 700 2779 -29.3 -39.3 37 10.0 -30.0 20 26 270.0 270.1 265.0 270.6 0.18 19 673 3059 -29.9 -36.9 51 7.0 -30.4 25 23 272.4 272.5 266.8 273.2 0.24 20 592 3959 -35.7 -41.7 54 6.0 -36.0 25 31 275.9 275.9 268.9 276.4 0.17 21 539 4606 -38.3 -49.3 31 11.0 -38.7 28 38 280.3 280.3 271.4 280.5 0.08 22 534 4670 -38.3 -56.3 13 18.0 -38.9 28 39 281.0 281.0 271.8 281.1 0.04 23 504 5066 -39.5 -57.5 13 18.0 -40.0 34 39 284.2 284.2 273.6 284.3 0.03 24 500 5120 -39.3 -56.3 15 17.0 -39.8 35 39 285.1 285.1 274.2 285.3 0.04 25 498 5147 -39.5 -55.5 17 16.0 -40.0 35 39 285.2 285.2 274.2 285.4 0.04 26 424 6233 -45.7 -54.7 36 9.0 -45.9 42 53 290.7 290.7 277.1 290.9 0.05 27 406 6522 -47.1 -61.1 19 14.0 -47.4 45 55 292.5 292.5 278.0 292.6 0.03 28 400 6620 -47.5 -63.5 14 16.0 -47.8 45 55 293.3 293.3 278.3 293.3 0.02 29 383 6908 -47.9 -63.9 14 16.0 -48.2 43 62 296.4 296.4 279.7 296.5 0.02 30 361 7297 -50.6 -64.4 18 13.7 -50.8 40 71 297.8 297.8 280.4 297.9 0.02 31 336 7763 -53.9 -64.9 25 11.0 -54.1 46 68 299.5 299.5 281.1 299.6 0.02 32 309 8301 -55.5 -68.5 18 13.0 -55.6 49 66 304.5 304.5 283.2 304.6 0.01 33 300 8490 -55.3 -69.3 16 14.0 -55.5 50 66 307.4 307.4 284.4 307.4 0.01 34 269 9184 -57.3 -71.3 15 14.0 -57.5 45 60 314.2 314.2 286.8 314.3 0.01 35 251 9625 -55.9 -73.9 9 18.0 -56.1 45 53 322.6 322.6 289.6 322.6 0.01 36 250 9650 -56.1 -74.1 9 18.0 -56.3 45 53 322.7 322.7 289.6 322.7 0.01 37 238 9961 -57.7 -76.7 7 19.0 -57.9 45 52 324.8 324.8 290.2 324.8 0.00 38 225 10317 -54.9 -78.9 4 24.0 -55.1 43 48 334.4 334.4 292.9 334.4 0.00 39 220 10460 -55.5 -78.5 4 23.0 -55.7 42 45 335.6 335.6 293.2 335.6 0.00 40 203 10974 -53.1 -81.1 2 28.0 -53.4 25 41 347.2 347.2 296.0 347.2 0.00 41 200 11070 -53.7 -81.7 2 28.0 -54.0 30 36 347.7 347.7 296.1 347.7 0.00 42 192 11330 -55.1 -82.1 2 27.0 -55.4 30 37 349.6 349.6 296.5 349.6 0.00 43 167 12217 -55.7 -83.7 2 28.0 -56.0 22 36 362.8 362.8 299.2 362.8 0.00 44 163 12371 -54.5 -82.5 2 28.0 -54.9 18 34 367.3 367.3 300.1 367.3 0.00 45 153 12774 -55.5 -83.5 2 28.0 -55.8 24 31 372.3 372.3 300.9 372.3 0.00 46 150 12900 -54.5 -83.5 2 29.0 -54.9 5 26 376.2 376.2 301.6 376.2 0.00 47 149 12943 -54.1 -83.1 2 29.0 -54.5 4 26 377.6 377.6 301.9 377.6 0.00 48 109 14935 -57.3 -85.3 2 28.0 -57.7 351 38 406.9 406.9 306.1 406.9 0.00 49 100 15480 -56.9 -85.9 1 29.0 -57.3 340 35 417.8 417.8 307.4 417.8 0.00 50 71 17632 -60.3 -87.3 2 27.0 -60.7 327 48 453.5 453.5 311.2 453.6 0.00 51 70 17720 -59.9 -87.9 1 28.0 -60.3 330 50 456.2 456.2 311.4 456.2 0.00 52 50 19830 -57.5 -87.5 1 30.0 -58.3 320 58 508.0 508.0 315.5 508.0 0.00 53 47 20221 -56.5 -87.5 1 31.0 -57.4 320 61 519.4 519.4 316.2 519.5 0.00 54 32 22629 -61.1 -89.1 1 28.0 -61.9 328 81 567.5 567.5 319.0 567.5 0.00 55 30 23030 -60.1 -89.1 1 29.0 -61.0 330 90 580.8 580.8 319.7 580.8 0.00 56 23 24706 -56.1 -88.1 1 32.0 -57.9 325 98 638.4 638.4 322.2 638.5 0.01 57 20 25590 -59.1 -88.1 1 29.0 -60.6 315 107 655.3 655.3 322.9 655.3 0.01 58 19 25911 -59.7 -88.7 1 29.0 -61.1 320 111 663.1 663.1 323.2 663.1 0.01 59 15 27404 -55.5 -87.5 1 32.0 -58.1 325 152 723.4 723.4 325.1 723.5 0.01 60 14 27850 -50.1 -85.1 1 35.0 -54.5 324 148 756.2 756.2 326.1 756.3 0.02 61 10 30010 -57.9 -87.9 1 30.0 -60.7 320 156 803.4 803.4 327.3 803.6 0.02 62 8.7 30886 -58.9 -88.9 1 30.0 -61.7 832.2 832.2 328.0 832.3 0.02 63 6.7 32530 -57.7 -88.7 1 31.0 -61.5 901.8 901.8 329.5 902.0 0.02 64 5.9 33342 -52.7 -86.7 1 34.0 -58.9 956.9 956.9 330.5 957.2 0.04 65 5.7 33564 -53.7 -86.7 1 33.0 -59.5 962.0 962.0 330.5 962.3 0.04 TRP 269 9184 -57.3 -71.3 15 14.0 -57.5 45 60 314.2 314.2 286.8 314.3 0.01 WND 361 7297 -50.6 -64.4 18 13.7 -50.8 40 71 297.8 297.8 280.4 297.9 0.02 Sounding variables and indices 1000-500 mb thick: 4902.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.05 inches Sfc-500 mean rel hum: 55.50 % Est. max temperature: -15.66 C = 3.82 F Sfc-Lift cond lev (LCL): 967.50 mb = 454.42 m = 1490.87 ft T: -27.16 C 700-500 lapse rate: 4.27 C/km ThetaE index: 0.00 C Layer 1016.0-166057796923399653706080487429850005504.0 mb Conv cond level (CCL): 997.75 mb = 234.07 m = 767.93 ft Mean mixing ratio: 0.34 g/kg Conv temperature: -28.13 C = -18.63 F Cap Strength: 29.56 C Lifted Index: 30.23 C Risk: None Lifted Index @300 mb: 41.89 C Lifted Index @700 mb: 19.84 C Showalter Index: 22.26 C Risk: None Total Totals Index: 19.10 C Risk: None Vertical Totals Index: 11.60 C Cross Totals Index: 7.50 C K Index: -30.20 Risk: None Sweat Index: 93.00 Risk: None Energy Index: 5.77 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 38.79 J/kg Max Up Vert Vel: 8.81 m/s Conv Inhibition (B-): 79956.16 J/kg Cap Strength: 29.97 C Lift Cond Lev (LCL): 941.67 mb = 648.81 m = 2128.61 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 50 at 24 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 1016 68 315 12 8.5 -8.5 | 256 27 26.6 6.7 1 1000 218 320 20 12.9 -15.3 | 270 31 31.0 -0.2 2 988 305 330 24 12.0 -20.8 | 281 31 30.1 -5.6 3 947 610 345 22 5.7 -21.3 | 284 25 23.8 -6.1 4 925 777 345 25 6.5 -24.1 | 290 26 24.6 -9.0 5 907 914 345 27 7.0 -26.1 | 294 27 25.1 -10.9 6 870 1219 350 29 5.0 -28.6 | 300 27 23.1 -13.4 7 850 1385 5 27 -2.4 -26.9 | 307 20 15.7 -11.8 8 799 1829 15 28 -7.2 -27.0 | 318 16 10.9 -11.9 9 766 2134 10 29 -5.0 -28.6 | 316 19 13.1 -13.4 10 734 2438 20 27 -9.2 -25.4 | 319 14 8.9 -10.2 11 703 2743 20 25 -8.6 -23.5 | 311 13 9.5 -8.4 12 700 2779 20 26 -8.9 -24.4 | 315 13 9.2 -9.3 13 673 3048 25 23 -9.7 -20.8 | 304 10 8.4 -5.7 14 617 3658 25 28 -11.8 -25.4 | 329 12 6.3 -10.2 15 565 4267 25 34 -14.4 -30.8 | 347 16 3.7 -15.7 16 518 4877 30 41 -20.5 -35.5 | 7 21 -2.4 -20.4 17 500 5120 35 39 -22.4 -31.9 | 14 17 -4.3 -16.8 18 432 6096 40 53 -34.1 -40.6 | 32 30 -16.0 -25.5 19 413 6401 45 54 -38.2 -38.2 | 41 31 -20.1 -23.0 20 400 6620 45 55 -38.9 -38.9 | 41 32 -20.8 -23.8 21 361 7297 40 71 -45.6 -54.4 | 35 48 -27.5 -39.3 22 360 7315 40 71 -45.6 -54.4 | 35 48 -27.5 -39.3 23 343 7620 45 68 -48.1 -48.1 | 42 45 -30.0 -32.9 24 300 8490 50 66 -50.6 -42.4 | 50 42 -32.5 -27.3 25 271 9144 45 64 -45.3 -45.3 | 42 41 -27.2 -30.1 26 269 9184 45 60 -42.4 -42.4 | 42 37 -24.3 -27.3 27 250 9650 45 53 -37.5 -37.5 | 41 30 -19.4 -22.3 28 234 10058 45 52 -36.8 -36.8 | 41 29 -18.7 -21.6 29 213 10668 40 42 -27.0 -32.2 | 28 19 -8.9 -17.0 30 203 10973 25 41 -17.3 -37.2 | 358 22 0.8 -22.0 31 200 11070 30 36 -18.0 -31.2 | 360 16 0.1 -16.0 32 176 11887 30 39 -19.5 -33.8 | 4 19 -1.4 -18.6 33 160 12497 15 33 -8.5 -31.9 | 330 19 9.6 -16.7 34 152 12802 25 31 -13.1 -28.1 | 339 14 5.0 -13.0 35 150 12900 5 26 -2.3 -25.9 | 304 19 15.8 -10.8 36 145 13106 360 25 -0.0 -25.0 | 299 21 18.1 -9.9 37 132 13716 350 34 5.9 -33.5 | 307 30 24.0 -18.3 38 126 14021 355 39 3.4 -38.9 | 318 32 21.5 -23.7 39 104 15240 350 37 6.4 -36.4 | 311 32 24.5 -21.3 40 100 15480 340 35 12.0 -32.9 | 301 35 30.1 -17.8 41 99 15545 355 36 3.1 -35.9 | 314 30 21.2 -20.7 42 94 15850 340 35 12.0 -32.9 | 301 35 30.1 -17.8 43 82 16764 340 44 15.0 -41.3 | 308 42 33.1 -26.2 44 74 17374 320 41 26.4 -31.4 | 290 47 44.5 -16.3 45 70 17720 330 50 25.0 -43.3 | 303 51 43.1 -28.2 46 64 18288 335 57 24.1 -51.7 | 311 56 42.2 -36.5 47 61 18593 320 59 37.9 -45.2 | 298 64 56.0 -30.1 48 58 18898 335 59 24.9 -53.5 | 312 58 43.0 -38.3 49 50 19830 320 58 37.3 -44.4 | 298 63 55.4 -29.3 50 39 21336 320 71 45.6 -54.4 | 302 75 63.7 -39.3 51 37 21641 315 70 49.5 -49.5 | 297 76 67.6 -34.4 52 36 21946 325 67 38.4 -54.9 | 305 69 56.5 -39.7 53 30 23030 330 90 45.0 -77.9 | 315 89 63.1 -62.8 54 24 24384 325 108 61.9 -88.5 | 312 109 80.0 -73.3 55 23 24689 325 98 56.2 -80.3 | 311 99 74.3 -65.1 56 20 25590 315 107 75.7 -75.7 | 303 112 93.8 -60.5 57 19 25908 320 111 71.3 -85.0 | 308 114 89.4 -69.9 58 18 26213 315 104 73.5 -73.5 | 303 109 91.6 -58.4 59 15 27432 325 152 87.2 -124.5 | 316 152 105.3 -109.4 60 11 29566 320 133 85.5 -101.9 | 310 135 103.6 -86.7 61 10 30010 320 156 100.3 -119.5 | 311 158 118.4 -104.4 Wind Parameters Mean winds (0-6000m): 20.1 at 31.5 knts Storm direction: 50.1 at 23.6 knts Shear (0-3000m) pos: 3.8 neg: 0.0 tot: 3.8 10-3/s Storm rel Dir Shear (0-3000m): 49.2 deg Storm rel helicity (0-3000m) pos: 199.0 neg: -11.2 tot: 187.8 m^2/s^2 ave: 62.6 10^-3 m/s^2 rel: 0.51 Storm rel vorticity (0-3000m) horiz: 8.6 stream: 4.3 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 0.51 Bulk Shear: 75.37 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 ------------------------------------------------------------------------------- 500 331 21 277 29| 13.3 0.0 13.3|111.6 0.0 111.6 223.2 0.78| 18.9 14.8 1000 339 23 284 27| 9.8 0.0 9.8|152.3 0.0 152.3 152.3 0.81| 12.8 10.4 1500 346 25 291 26| 7.7 0.0 7.7|186.6 0.0 186.6 124.4 0.72| 12.3 8.9 2000 354 26 296 23| 6.2 0.0 6.2|195.5 -1.7 193.8 96.9 0.68| 10.4 7.1 2500 358 26 300 22| 4.9 0.0 4.9|198.4 -3.9 194.5 77.8 0.60| 9.4 5.7 3000 2 26 302 20| 3.8 0.0 3.8|199.0 -11.2 187.8 62.6 0.51| 8.6 4.3 4000 9 26 307 18| 2.8 1.1 4.0|222.5 -11.2 211.3 52.8 0.56| 7.6 4.2 5000 14 28 318 17| 3.2 0.9 4.1|268.1 -11.2 256.9 51.4 0.59| 7.4 4.4 6000 20 31 333 16| 3.9 0.8 4.6|313.0 -11.2 301.9 50.3 0.58| 7.4 4.3 Wrote GIF file: /home/apache/climate/data/raob//CYEV/skewt/CYEV.skewt.20251221.00.gif