UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121012.upa.cvt Date: 1200Z 10 DEC 25 Searching for CYXS... Searching the city database file for: CYXS ... Date:1200Z 10 DEC 25 Station: CYXS WMO ident: 71896 Latitude: 53.88 Longitude: -122.68 Elevation: 691.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 -20 SFC 927 691 2.6 -0.0 83 2.6 1.4 170 8 281.8 282.5 278.3 293.3 4.12 2 925 620 2.8 0.1 82 2.7 1.6 175 8 282.2 282.9 278.5 293.8 4.16 3 877 1049 -0.7 -1.2 96 0.5 -0.9 189 36 282.9 283.6 278.7 294.1 3.99 4 871 1104 1.6 -2.9 72 4.5 -0.3 192 39 285.8 286.4 279.5 296.0 3.54 5 850 1300 0.6 -3.8 72 4.4 -1.2 205 44 286.8 287.4 279.8 296.5 3.39 6 820 1588 -1.1 -4.5 78 3.4 -2.5 221 46 287.9 288.5 280.3 297.6 3.34 7 799 1795 -0.9 -5.3 72 4.4 -2.7 233 48 290.3 290.9 281.2 299.7 3.22 8 744 2359 -5.9 -6.7 94 0.8 -6.2 251 54 290.8 291.4 281.3 300.0 3.11 9 743 2370 -5.9 -6.7 94 0.8 -6.2 251 54 290.9 291.5 281.4 300.1 3.11 10 733 2476 -5.9 -8.5 82 2.6 -6.8 256 55 292.1 292.6 281.4 300.2 2.74 11 700 2835 -8.9 -10.5 88 1.6 -9.4 260 56 292.6 293.1 281.3 300.0 2.45 12 691 2935 -9.7 -11.0 90 1.3 -10.1 261 57 292.8 293.3 281.3 300.0 2.39 13 639 3534 -13.3 -20.3 56 7.0 -15.0 265 57 295.4 295.6 280.9 299.1 1.19 14 602 3985 -15.7 -20.4 67 4.7 -16.9 260 45 297.7 297.9 282.0 301.6 1.25 15 559 4537 -20.7 -21.4 94 0.7 -20.8 255 35 298.1 298.4 282.2 302.0 1.24 16 558 4551 -19.7 -27.7 49 8.0 -21.1 255 35 299.5 299.6 282.1 301.8 0.70 17 557 4564 -19.1 -29.1 41 10.0 -20.8 255 35 300.3 300.4 282.3 302.4 0.62 18 555 4591 -18.9 -29.9 37 11.0 -20.8 255 35 300.9 301.0 282.5 302.8 0.58 19 524 5016 -21.1 -54.1 3 33.0 -23.8 263 50 303.2 303.2 282.7 303.4 0.05 20 500 5360 -24.1 -54.1 4 30.0 -26.3 270 56 303.7 303.7 283.0 303.8 0.05 21 476 5717 -26.7 -55.7 5 29.0 -28.6 264 57 304.7 304.8 283.4 304.9 0.04 22 470 5809 -25.9 -56.9 4 31.0 -28.0 262 58 306.8 306.8 284.2 307.0 0.04 23 425 6530 -30.7 -59.7 4 29.0 -32.2 260 70 309.7 309.7 285.2 309.8 0.03 24 400 6960 -31.7 -58.7 5 27.0 -33.1 260 89 313.8 313.8 286.7 313.9 0.03 25 359 7717 -35.7 -61.7 5 26.0 -36.8 265 89 318.3 318.3 288.2 318.4 0.03 26 300 8940 -45.1 -66.1 8 21.0 -45.6 265 91 321.8 321.8 289.3 321.9 0.02 27 271 9614 -50.5 -69.5 9 19.0 -50.8 265 92 323.4 323.4 289.8 323.5 0.01 28 253 10062 -51.5 -72.5 6 21.0 -51.8 265 99 328.4 328.4 291.3 328.4 0.01 29 250 10140 -51.7 -73.7 5 22.0 -52.0 265 100 329.2 329.2 291.5 329.2 0.01 30 243 10324 -52.8 -74.4 6 21.6 -53.1 265 107 330.3 330.3 291.8 330.3 0.01 31 232 10622 -54.5 -75.5 6 21.0 -54.8 270 99 332.1 332.1 292.3 332.1 0.01 32 227 10762 -54.5 -76.5 5 22.0 -54.8 270 103 334.1 334.1 292.9 334.2 0.01 33 220 10963 -54.3 -77.3 4 23.0 -54.6 270 103 337.5 337.5 293.7 337.5 0.00 34 217 11051 -51.7 -79.7 2 28.0 -52.1 270 103 342.8 342.8 295.0 342.8 0.00 35 200 11580 -52.7 -80.7 2 28.0 -53.1 270 103 349.3 349.3 296.5 349.3 0.00 36 195 11743 -52.1 -81.1 2 29.0 -52.5 270 103 352.8 352.8 297.3 352.8 0.00 37 184 12115 -54.3 -81.3 2 27.0 -54.6 271 98 355.1 355.1 297.7 355.2 0.00 38 177 12363 -52.5 -81.5 2 29.0 -52.9 273 92 362.1 362.1 299.1 362.1 0.00 39 166 12776 -53.1 -82.1 2 29.0 -53.5 276 82 367.8 367.8 300.2 367.8 0.00 40 162 12933 -51.3 -82.3 1 31.0 -51.8 277 78 373.4 373.4 301.1 373.4 0.00 41 151 13387 -52.1 -82.1 2 30.0 -52.6 280 67 379.6 379.6 302.2 379.6 0.00 42 150 13430 -51.5 -82.5 1 31.0 -52.1 280 66 381.3 381.3 302.5 381.3 0.00 43 145 13650 -50.5 -82.5 1 32.0 -51.1 284 62 386.8 386.8 303.3 386.8 0.00 44 137 14018 -52.9 -82.9 1 30.0 -53.4 290 56 388.9 388.9 303.6 388.9 0.00 45 131 14308 -51.1 -83.1 1 32.0 -51.7 285 55 397.1 397.1 304.8 397.1 0.00 46 120 14874 -54.5 -83.5 2 29.0 -55.0 276 52 401.0 401.0 305.3 401.0 0.00 47 100 16040 -54.9 -84.9 1 30.0 -55.5 285 59 421.7 421.7 307.9 421.7 0.00 48 94 16435 -55.5 -85.5 1 30.0 -56.1 285 59 428.0 428.0 308.6 428.0 0.00 49 81 17392 -51.7 -83.7 1 32.0 -52.7 300 50 454.4 454.4 311.3 454.4 0.00 50 70 18330 -55.5 -85.5 1 30.0 -56.2 305 42 465.7 465.7 312.3 465.7 0.00 51 58 19527 -57.7 -86.7 1 29.0 -58.3 295 41 486.4 486.4 314.0 486.4 0.00 52 50 20470 -55.7 -85.7 1 30.0 -56.6 300 34 512.2 512.2 315.8 512.2 0.01 53 46 21000 -54.9 -85.9 1 31.0 -56.0 313 38 526.5 526.5 316.7 526.5 0.01 54 39 22042 -58.9 -87.9 1 29.0 -59.7 315 36 541.8 541.8 317.6 541.9 0.00 55 35 22726 -54.7 -86.7 1 32.0 -56.1 317 41 569.8 569.8 319.2 569.9 0.01 56 30 23710 -54.5 -86.5 1 32.0 -56.2 335 43 596.1 596.1 320.5 596.1 0.01 57 25 24874 -56.5 -87.5 1 31.0 -58.1 351 42 622.2 622.2 321.6 622.3 0.01 58 20 26300 -53.7 -85.7 1 32.0 -56.2 335 40 671.8 671.8 323.5 671.9 0.01 59 18 26975 -52.5 -85.5 1 33.0 -55.5 337 30 696.1 696.1 324.3 696.2 0.01 60 14 28566 -59.3 -88.3 1 29.0 -61.2 323 26 725.0 725.0 325.2 725.0 0.01 61 13 29030 -57.5 -88.5 1 31.0 -59.9 331 35 746.7 746.7 325.8 746.8 0.01 62 10 30680 -57.9 -87.9 1 30.0 -60.7 340 49 803.4 803.4 327.3 803.6 0.02 63 9.0 31348 -55.7 -86.7 1 31.0 -59.4 836.5 836.5 328.1 836.7 0.02 64 7.5 32498 -59.7 -88.7 1 29.0 -62.6 865.0 865.0 328.7 865.2 0.02 65 6.4 33498 -56.3 -88.3 1 32.0 -60.7 919.6 919.6 329.8 919.8 0.02 66 5.3 34680 -61.9 -88.9 2 27.0 -65.0 945.5 945.5 330.2 945.7 0.03 TRP 232 10622 -54.5 -75.5 6 21.0 -54.8 270 99 332.1 332.1 292.3 332.1 0.01 WND 243 10324 -52.8 -74.4 6 21.6 -53.1 265 107 330.3 330.3 291.8 330.3 0.01 Sounding variables and indices 1000-500 mb thick: 5380.00 m Freezing level: 886.60 mb = 962.87 m = 3158.99 ft Freezing level: 875.17 mb = 1065.36 m = 3495.22 ft Freezing level: 839.41 mb = 1401.53 m = 4598.15 ft Wetbulb zero: 894.48 mb = 889.82 m = 2919.32 ft Precipitable water: 0.40 inches Sfc-500 mean rel hum: 66.85 % Est. max temperature: 11.14 C = 52.05 F Sfc-Lift cond lev (LCL): 890.33 mb = 927.27 m = 3042.20 ft T: 0.29 C 700-500 lapse rate: 6.02 C/km ThetaE index: 0.26 C Layer 700.0- 691.0 mb Conv cond level (CCL): 766.24 mb = 2126.12 m = 6975.39 ft Mean mixing ratio: 3.76 g/kg Conv temperature: 11.24 C = 52.23 F Cap Strength: 8.35 C Lifted Index: 8.28 C Risk: None Lifted Index @300 mb: 18.89 C Lifted Index @700 mb: 3.38 C Showalter Index: 7.29 C Risk: None Total Totals Index: 45.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.70 C Cross Totals Index: 20.30 C K Index: 19.30 Risk: < 20 % chance of thunderstorms Sweat Index: 282.29 Risk: None Energy Index: 1.54 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 30.71 J/kg Max Up Vert Vel: 7.84 m/s Conv Inhibition (B-): 76528.23 J/kg Cap Strength: 8.34 C Lift Cond Lev (LCL): 837.67 mb = 1417.01 m = 4648.93 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 283 at 38 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 ---------------------------------------------------------- 0 927 691 170 8 -1.4 7.9 | 113 42 -38.3 16.6 1 925 620 175 8 -0.7 8.0 | 114 41 -37.6 16.6 2 892 914 180 29 0.0 29.0 | 136 53 -36.9 37.7 3 859 1219 200 45 15.4 42.3 | 157 55 -21.5 51.0 4 850 1300 205 44 18.6 39.9 | 159 52 -18.3 48.6 5 795 1829 235 48 39.3 27.5 | 184 36 2.4 36.2 6 765 2134 240 51 44.2 25.5 | 192 35 7.2 34.2 7 736 2438 255 55 53.1 14.2 | 215 28 16.2 22.9 8 708 2743 265 53 52.8 4.6 | 230 21 15.9 13.3 9 700 2835 260 56 55.1 9.7 | 225 26 18.2 18.4 10 653 3353 265 61 60.8 5.3 | 240 28 23.8 14.0 11 627 3658 265 53 52.8 4.6 | 230 21 15.9 13.3 12 578 4267 255 37 35.7 9.6 | 176 18 -1.2 18.3 13 555 4572 255 35 33.8 9.1 | 170 18 -3.1 17.7 14 533 4877 260 48 47.3 8.3 | 211 20 10.3 17.0 15 500 5360 270 56 56.0 -0.0 | 246 21 19.1 8.7 16 491 5486 270 56 56.0 -0.0 | 246 21 19.1 8.7 17 451 6096 255 60 58.0 15.5 | 221 32 21.0 24.2 18 432 6401 260 64 63.0 11.1 | 233 33 26.1 19.8 19 400 6960 260 89 87.6 15.5 | 245 56 50.7 24.1 20 397 7010 260 89 87.6 15.5 | 245 56 50.7 24.1 21 363 7620 265 89 88.7 7.8 | 252 54 51.7 16.4 22 318 8534 265 94 93.6 8.2 | 253 59 56.7 16.9 23 300 8940 265 91 90.7 7.9 | 253 56 53.7 16.6 24 291 9144 265 91 90.7 7.9 | 253 56 53.7 16.6 25 278 9449 265 90 89.7 7.8 | 253 55 52.7 16.5 26 250 10140 265 100 99.6 8.7 | 254 65 62.7 17.4 27 243 10324 265 107 106.6 9.3 | 256 72 69.7 18.0 28 242 10363 265 107 106.6 9.3 | 256 72 69.7 18.0 29 232 10622 270 99 99.0 -0.0 | 262 63 62.1 8.7 30 230 10668 270 103 103.0 -0.0 | 263 67 66.1 8.7 31 200 11580 270 103 103.0 -0.0 | 263 67 66.1 8.7 32 191 11887 270 103 103.0 -0.0 | 263 67 66.1 8.7 33 150 13430 280 66 65.0 -11.5 | 276 28 28.1 -2.8 34 137 14021 290 56 52.6 -19.2 | 304 19 15.7 -10.5 35 119 14935 275 52 51.8 -4.5 | 254 15 14.9 4.1 36 113 15240 280 54 53.2 -9.4 | 272 16 16.2 -0.7 37 108 15545 285 50 48.3 -12.9 | 291 12 11.4 -4.3 38 100 16040 285 59 57.0 -15.3 | 288 21 20.1 -6.6 39 98 16154 285 60 58.0 -15.5 | 288 22 21.0 -6.9 40 85 17069 285 58 56.0 -15.0 | 288 20 19.1 -6.3 41 81 17374 300 51 44.2 -25.5 | 337 18 7.2 -16.8 42 77 17678 295 41 37.2 -17.3 | 359 9 0.2 -8.6 43 70 18288 315 39 27.6 -27.6 | 26 21 -9.4 -18.9 44 70 18330 305 42 34.4 -24.1 | 9 16 -2.5 -15.4 45 58 19507 295 41 37.2 -17.3 | 359 9 0.2 -8.6 46 50 20422 315 36 25.5 -25.5 | 34 20 -11.5 -16.8 47 50 20470 300 34 29.4 -17.0 | 42 11 -7.5 -8.3 48 48 20726 295 36 32.6 -15.2 | 33 8 -4.3 -6.5 49 46 21031 315 38 26.9 -26.9 | 29 21 -10.1 -18.2 50 44 21336 300 39 33.8 -19.5 | 16 11 -3.2 -10.8 51 40 21946 320 34 21.9 -26.0 | 41 23 -15.1 -17.4 52 38 22250 305 40 32.8 -22.9 | 16 15 -4.2 -14.3 53 31 23470 335 43 18.2 -39.0 | 32 36 -18.8 -30.3 54 30 23710 335 43 18.2 -39.0 | 32 36 -18.8 -30.3 55 28 24079 330 41 20.5 -35.5 | 31 31 -16.4 -26.8 56 26 24689 345 52 13.5 -50.2 | 29 48 -23.5 -41.5 57 25 24994 355 36 3.1 -35.9 | 51 43 -33.8 -27.2 58 20 26213 335 41 17.3 -37.2 | 35 35 -19.6 -28.5 59 20 26300 335 40 16.9 -36.3 | 36 34 -20.0 -27.6 60 18 26822 345 31 8.0 -29.9 | 54 36 -28.9 -21.3 61 17 27432 310 27 20.7 -17.4 | 62 18 -16.3 -8.7 62 16 27737 310 24 18.4 -15.4 | 70 20 -18.6 -6.7 63 14 28651 325 26 14.9 -21.3 | 60 25 -22.0 -12.6 64 12 29566 340 48 16.4 -45.1 | 29 42 -20.5 -36.4 65 11 30175 355 38 3.3 -37.9 | 49 45 -33.6 -29.2 66 10 30680 340 49 16.8 -46.0 | 28 42 -20.2 -37.4 Wind Parameters Mean winds (0-6000m): 253.2 at 50.6 knts Storm direction: 283.2 at 37.9 knts Shear (0-3000m) pos: 9.1 neg: 0.0 tot: 9.1 10-3/s Storm rel Dir Shear (0-3000m): 107.6 deg Storm rel helicity (0-3000m) pos: 932.0 neg: -29.5 tot: 902.5 m^2/s^2 ave: 300.8 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 18.8 stream: 13.4 10^-3/s Energy-Hel index: 0.17 Bulk Rich Number: 0.10 Bulk Shear: 294.32 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 ------------------------------------------------------------------------------- 500 187 29 139 50| 32.7 0.0 32.7|427.4 0.0 427.4 854.9 0.91| 35.4 32.3 1000 203 37 153 48| 20.6 0.0 20.6|655.6 0.0 655.6 655.6 0.86| 29.6 25.4 1500 217 41 164 44| 16.5 0.0 16.5|773.7 0.0 773.7 515.8 0.86| 24.6 21.1 2000 228 44 174 38| 14.0 0.0 14.0|891.3 0.0 891.3 445.7 0.84| 23.5 19.8 2500 237 47 184 34| 12.4 0.0 12.4|919.6 -2.3 917.3 366.9 0.81| 20.5 16.6 3000 243 49 192 31| 9.1 0.0 9.1|932.0 -29.5 902.5 300.8 0.71| 18.8 13.4 4000 247 47 193 28| 7.0 1.9 8.9|954.1-116.6 837.5 209.4 0.49| 17.1 8.3 5000 251 48 200 25| 7.1 1.2 8.3|1056.8-139.4 917.3 183.5 0.51| 16.3 8.3 6000 253 51 206 26| 7.3 1.5 8.8|1164.8-192.6 972.2 162.0 0.45| 16.2 7.3 Wrote GIF file: /home/apache/climate/data/raob//CYXS/skewt/CYXS.skewt.20251210.12.gif