UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for CYXS... Searching the city database file for: CYXS ... Date:1200Z 9 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 17 SFC 932 691 3.8 -3.2 60 7.0 0.9 200 5 282.6 283.1 277.5 291.8 3.23 2 925 658 3.8 -4.2 56 8.0 0.5 210 7 283.2 283.7 277.6 291.8 3.02 3 850 1340 -0.9 -5.5 71 4.6 -2.7 255 42 285.2 285.7 278.5 293.8 2.98 4 792 1900 -4.3 -8.5 72 4.2 -5.8 271 43 287.4 287.8 279.0 294.8 2.54 5 716 2685 -10.9 -12.1 91 1.2 -11.3 274 41 288.5 288.9 279.0 294.8 2.11 6 700 2858 -12.3 -14.5 84 2.2 -12.9 280 42 288.9 289.2 278.7 294.2 1.77 7 679 3090 -13.7 -17.3 74 3.6 -14.6 285 41 289.8 290.1 278.7 294.2 1.45 8 580 4265 -23.7 -23.8 99 0.1 -23.7 275 36 291.5 291.7 278.9 294.5 0.96 9 553 4611 -26.9 -28.1 90 1.2 -27.1 272 44 291.7 291.8 278.6 293.9 0.68 10 550 4651 -27.1 -29.1 83 2.0 -27.4 272 45 291.9 292.0 278.6 293.9 0.63 11 541 4769 -28.1 -28.9 93 0.8 -28.2 271 48 292.1 292.2 278.7 294.2 0.65 12 537 4822 -28.3 -31.0 78 2.7 -28.6 271 49 292.5 292.6 278.7 294.2 0.54 13 521 5039 -30.3 -31.5 89 1.2 -30.4 270 51 292.6 292.7 278.8 294.3 0.53 14 506 5246 -31.9 -33.1 89 1.2 -32.0 270 50 293.1 293.2 278.9 294.7 0.46 15 500 5330 -32.5 -35.3 76 2.8 -32.8 270 50 293.4 293.5 278.9 294.7 0.38 16 488 5500 -33.9 -38.6 62 4.7 -34.3 270 51 293.7 293.8 278.9 294.7 0.28 17 454 6000 -38.3 -40.2 82 1.9 -38.4 270 53 294.4 294.4 279.2 295.2 0.25 18 435 6291 -40.7 -43.5 74 2.8 -40.9 273 43 294.9 295.0 279.3 295.6 0.19 19 434 6307 -40.7 -44.8 65 4.1 -40.9 273 42 295.1 295.2 279.4 295.7 0.16 20 431 6354 -39.9 -52.9 24 13.0 -40.4 274 40 296.7 296.7 280.0 297.0 0.07 21 430 6370 -39.7 -52.7 24 13.0 -40.2 274 39 297.2 297.2 280.2 297.4 0.07 22 400 6860 -42.5 -60.5 12 18.0 -43.0 260 35 299.8 299.8 281.3 299.9 0.03 23 337 8007 -47.9 -64.9 12 17.0 -48.2 275 53 307.4 307.4 284.4 307.5 0.02 24 325 8246 -47.9 -66.9 9 19.0 -48.3 275 62 310.6 310.6 285.6 310.7 0.01 25 309 8582 -44.9 -70.9 4 26.0 -45.4 275 75 319.4 319.4 288.5 319.4 0.01 26 303 8713 -45.5 -71.5 4 26.0 -46.0 275 80 320.3 320.3 288.8 320.3 0.01 27 300 8780 -44.1 -72.1 3 28.0 -44.7 275 82 323.2 323.2 289.8 323.2 0.01 28 299 8802 -43.9 -71.9 3 28.0 -44.5 275 82 323.8 323.8 289.9 323.8 0.01 29 271 9460 -45.8 -74.8 2 29.0 -46.4 280 91 330.2 330.2 291.8 330.2 0.01 30 270 9485 -45.9 -74.9 2 29.0 -46.4 280 91 330.5 330.5 291.9 330.5 0.01 31 250 10000 -43.9 -76.9 1 33.0 -44.6 280 85 340.8 340.8 294.5 340.8 0.00 32 247 10081 -43.5 -77.5 1 34.0 -44.3 279 85 342.6 342.6 295.0 342.6 0.00 33 225 10706 -45.9 -77.9 1 32.0 -46.6 275 85 348.2 348.2 296.3 348.2 0.00 34 206 11293 -46.7 -79.7 1 33.0 -47.4 279 77 355.8 355.8 297.8 355.8 0.00 35 204 11358 -45.7 -79.7 1 34.0 -46.4 279 76 358.4 358.4 298.4 358.4 0.00 36 200 11490 -46.3 -80.3 1 34.0 -47.0 280 74 359.5 359.5 298.6 359.5 0.00 37 179 12224 -47.9 -80.9 1 33.0 -48.6 284 73 368.4 368.4 300.3 368.4 0.00 38 170 12566 -46.1 -81.1 1 35.0 -47.0 285 72 376.9 376.9 301.8 376.9 0.00 39 150 13390 -50.5 -82.5 1 32.0 -51.1 285 53 383.1 383.1 302.8 383.1 0.00 40 149 13433 -50.7 -82.7 1 32.0 -51.3 290 49 383.4 383.4 302.8 383.5 0.00 41 141 13793 -49.1 -83.1 1 34.0 -49.8 290 50 392.3 392.3 304.1 392.4 0.00 42 116 15051 -55.1 -85.1 1 30.0 -55.6 290 55 403.8 403.8 305.7 403.8 0.00 43 107 15565 -55.3 -85.3 1 30.0 -55.8 285 53 412.8 412.8 306.9 412.8 0.00 44 103 15809 -52.3 -84.3 1 32.0 -53.0 282 62 423.1 423.1 308.1 423.1 0.00 45 100 16000 -52.1 -85.1 1 33.0 -52.8 280 69 427.1 427.1 308.5 427.1 0.00 46 95 16333 -51.7 -84.7 1 33.0 -52.5 282 68 434.2 434.2 309.3 434.2 0.00 47 80 17441 -55.3 -86.3 1 31.0 -55.9 298 65 448.6 448.6 310.7 448.6 0.00 48 72 18119 -52.9 -85.9 1 33.0 -53.8 311 56 467.4 467.4 312.4 467.4 0.00 49 70 18300 -54.7 -85.7 1 31.0 -55.5 320 46 467.4 467.4 312.4 467.4 0.00 50 50 20440 -55.7 -86.7 1 31.0 -56.6 300 38 512.2 512.2 315.8 512.2 0.00 51 45 21107 -58.3 -88.3 1 30.0 -59.1 291 35 521.6 521.6 316.4 521.6 0.00 52 43 21394 -56.5 -87.5 1 31.0 -57.5 284 39 532.8 532.8 317.1 532.9 0.00 53 38 22171 -60.7 -88.7 1 28.0 -61.4 322 45 541.3 541.3 317.6 541.3 0.00 54 31 23460 -53.5 -87.5 1 34.0 -55.3 355 48 593.2 593.2 320.3 593.2 0.01 55 30 23670 -54.7 -86.7 1 32.0 -56.3 350 36 595.5 595.5 320.4 595.6 0.01 56 26 24592 -52.5 -86.5 1 34.0 -54.8 320 28 626.6 626.6 321.7 626.7 0.01 57 23 25381 -55.1 -88.1 1 33.0 -57.1 340 30 641.4 641.4 322.3 641.4 0.01 58 20 26280 -52.3 -86.3 1 34.0 -55.2 345 30 676.1 676.1 323.6 676.2 0.01 59 17 27328 -53.1 -87.1 1 34.0 -56.1 337 29 705.7 705.7 324.6 705.8 0.01 60 16 27722 -49.1 -86.1 1 37.0 -53.5 337 35 731.1 731.1 325.4 731.2 0.01 61 12 29580 -55.5 -88.5 1 33.0 -58.6 320 34 771.1 771.1 326.5 771.2 0.01 62 10 30740 -56.1 -88.1 1 32.0 -59.5 335 54 810.1 810.1 327.5 810.3 0.02 63 6.0 33913 -66.1 -92.1 1 26.0 -67.9 894.4 894.4 329.3 894.5 0.01 TRP 337 8007 -47.9 -64.9 12 17.0 -48.2 275 53 307.4 307.4 284.4 307.5 0.02 WND 271 9460 -45.8 -74.8 2 29.0 -46.4 280 91 330.2 330.2 291.8 330.2 0.01 Sounding variables and indices 1000-500 mb thick: 5313.00 m Freezing level: 864.36 mb = 1209.40 m = 3967.81 ft Wetbulb zero: 912.27 mb = 769.80 m = 2525.55 ft Precipitable water: 0.34 inches Sfc-500 mean rel hum: 80.77 % Est. max temperature: 8.66 C = 47.59 F Sfc-Lift cond lev (LCL): 836.31 mb = 1468.73 m = 4818.61 ft T: -1.68 C 700-500 lapse rate: 8.17 C/km ThetaE index: 0.64 C Layer 716.0- 679.0 mb Conv cond level (CCL): 760.98 mb = 2210.95 m = 7253.68 ft Mean mixing ratio: 2.99 g/kg Conv temperature: 8.98 C = 48.17 F Cap Strength: 2.59 C Lifted Index: 1.52 C Risk: Showers probable Lifted Index @300 mb: 21.51 C Lifted Index @700 mb: 1.39 C Showalter Index: 0.94 C Risk: Thunderstorms probable Total Totals Index: 58.60 C Risk: Severe Thunderstorms probable Vertical Totals Index: 31.60 C Cross Totals Index: 27.00 C K Index: 23.90 Risk: 20-40 % chance of thunderstorms Sweat Index: 326.00 Risk: Showers and thunderstorms possible Energy Index: 0.16 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.17 J/kg Max Up Vert Vel: 2.89 m/s Conv Inhibition (B-): 68439.49 J/kg Cap Strength: 2.56 C Lift Cond Lev (LCL): 801.19 mb = 1808.70 m = 5933.99 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 301 at 32 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 ---------------------------------------------------------- 0 932 691 200 5 1.7 4.7 | 129 33 -25.4 20.8 1 925 658 210 7 3.5 6.1 | 133 32 -23.7 22.1 2 896 914 235 31 25.4 17.8 | 177 34 -1.8 33.9 3 863 1219 250 39 36.6 13.3 | 198 31 9.5 29.4 4 850 1340 255 42 40.6 10.9 | 206 30 13.4 26.9 5 830 1524 260 43 42.3 7.5 | 213 28 15.2 23.5 6 798 1829 270 43 43.0 -0.0 | 225 23 15.8 16.1 7 768 2134 275 41 40.8 -3.6 | 228 19 13.7 12.5 8 739 2438 270 39 39.0 -0.0 | 216 20 11.8 16.1 9 710 2743 275 41 40.8 -3.6 | 228 19 13.7 12.5 10 700 2858 280 42 41.4 -7.3 | 238 17 14.2 8.8 11 682 3048 285 41 39.6 -10.6 | 246 14 12.4 5.5 12 628 3658 280 39 38.4 -6.8 | 230 15 11.3 9.3 13 578 4267 275 36 35.9 -3.1 | 214 16 8.7 12.9 14 532 4877 270 51 51.0 -0.0 | 236 29 23.8 16.1 15 500 5330 270 50 50.0 -0.0 | 235 28 22.8 16.1 16 447 6096 270 53 53.0 -0.0 | 238 30 25.8 16.1 17 428 6401 275 37 36.9 -3.2 | 217 16 9.7 12.9 18 400 6860 260 35 34.5 6.1 | 198 23 7.3 22.2 19 391 7010 260 34 33.5 5.9 | 196 23 6.3 22.0 20 374 7315 280 43 42.3 -7.5 | 240 17 15.2 8.6 21 357 7620 275 42 41.8 -3.7 | 230 19 14.7 12.4 22 341 7925 265 47 46.8 4.1 | 224 28 19.7 20.2 23 337 8007 275 53 52.8 -4.6 | 246 28 25.6 11.5 24 300 8780 275 82 81.7 -7.1 | 261 55 54.5 8.9 25 284 9144 275 85 84.7 -7.4 | 261 58 57.5 8.7 26 271 9460 280 91 89.6 -15.8 | 270 62 62.5 0.3 27 259 9754 280 91 89.6 -15.8 | 270 62 62.5 0.3 28 250 10000 280 85 83.7 -14.8 | 269 57 56.6 1.3 29 226 10668 275 86 85.7 -7.5 | 262 59 58.5 8.6 30 200 11490 280 74 72.9 -12.8 | 266 46 45.7 3.2 31 172 12497 285 73 70.5 -18.9 | 274 43 43.4 -2.8 32 150 13390 285 53 51.2 -13.7 | 264 24 24.0 2.4 33 150 13411 290 49 46.0 -16.8 | 272 19 18.9 -0.7 34 113 15240 290 56 52.6 -19.2 | 277 26 25.5 -3.1 35 107 15545 285 52 50.2 -13.5 | 264 23 23.1 2.6 36 100 16000 280 69 68.0 -12.0 | 264 41 40.8 4.1 37 98 16154 280 69 68.0 -12.0 | 264 41 40.8 4.1 38 74 17983 305 63 51.6 -36.1 | 309 32 24.5 -20.1 39 70 18300 320 46 29.6 -35.2 | 353 19 2.4 -19.2 40 67 18593 320 50 32.1 -38.3 | 347 23 5.0 -22.2 41 61 19202 295 30 27.2 -12.7 | 181 3 0.0 3.4 42 58 19507 335 33 13.9 -29.9 | 44 19 -13.2 -13.8 43 50 20422 300 31 26.8 -15.5 | 152 1 -0.3 0.6 44 50 20440 300 38 32.9 -19.0 | 297 6 5.8 -2.9 45 46 21031 295 34 30.8 -14.4 | 245 4 3.7 1.7 46 43 21336 280 38 37.4 -6.6 | 227 14 10.3 9.5 47 39 21946 320 50 32.1 -38.3 | 347 23 5.0 -22.2 48 36 22555 325 36 20.6 -29.5 | 26 15 -6.5 -13.4 49 34 22860 330 45 22.5 -39.0 | 11 23 -4.7 -22.9 50 32 23165 345 51 13.2 -49.3 | 23 36 -14.0 -33.2 51 31 23470 355 48 4.2 -47.8 | 36 39 -23.0 -31.7 52 30 23670 350 36 6.3 -35.5 | 47 29 -20.9 -19.4 53 28 24079 350 33 5.7 -32.5 | 53 27 -21.4 -16.4 54 27 24384 340 29 9.9 -27.3 | 57 21 -17.2 -11.2 55 26 24689 310 28 21.4 -18.0 | 71 6 -5.7 -1.9 56 22 25603 350 30 5.2 -29.5 | 58 26 -21.9 -13.5 57 21 25908 335 33 13.9 -29.9 | 44 19 -13.2 -13.8 58 20 26280 345 30 7.8 -29.0 | 56 23 -19.4 -12.9 59 18 27127 350 26 4.5 -25.6 | 67 25 -22.6 -9.5 60 17 27432 330 31 15.5 -26.8 | 47 16 -11.7 -10.8 61 15 28042 345 39 10.1 -37.7 | 38 28 -17.1 -21.6 62 14 28651 335 19 8.0 -17.2 | 87 19 -19.1 -1.1 63 13 28956 340 29 9.9 -27.3 | 57 21 -17.2 -11.2 64 11 29870 310 37 28.3 -23.8 | 351 8 1.2 -7.7 65 10 30740 335 54 22.8 -48.9 | 8 33 -4.3 -32.9 Wind Parameters Mean winds (0-6000m): 270.6 at 42.1 knts Storm direction: 300.6 at 31.6 knts Shear (0-3000m) pos: 6.6 neg: 0.6 tot: 7.1 10-3/s Storm rel Dir Shear (0-3000m): 90.9 deg Storm rel helicity (0-3000m) pos: 434.6 neg: -29.9 tot: 404.6 m^2/s^2 ave: 134.9 10^-3 m/s^2 rel: 0.69 Storm rel vorticity (0-3000m) horiz: 12.3 stream: 8.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.06 Bulk Shear: 73.65 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 ------------------------------------------------------------------------------- 500 238 28 174 31| 31.5 0.0 31.5|285.7 0.0 285.7 571.5 0.99| 34.3 33.9 1000 250 35 192 29| 19.4 0.0 19.4|376.2 0.0 376.2 376.2 0.95| 24.2 23.0 1500 258 38 202 26| 12.6 0.0 12.6|396.1 -3.0 393.1 262.1 0.87| 18.7 16.3 2000 262 38 206 24| 9.5 0.0 9.5|409.0 -15.6 393.4 196.7 0.79| 15.4 12.2 2500 266 39 212 22| 7.9 0.0 7.9|434.6 -17.9 416.6 166.7 0.77| 14.1 10.8 3000 269 39 215 20| 6.6 0.6 7.1|434.6 -29.9 404.6 134.9 0.69| 12.3 8.5 4000 271 39 217 20| 4.9 1.4 6.4|463.9 -44.4 419.5 104.9 0.60| 11.1 6.6 5000 271 41 222 21| 3.9 1.6 5.5|481.1 -48.1 432.9 86.6 0.57| 9.6 5.5 6000 271 42 224 22| 3.1 1.2 4.3|487.8-113.0 374.7 62.5 0.36| 10.0 3.6 Wrote GIF file: /home/apache/climate/data/raob//CYXS/skewt/CYXS.skewt.20251209.12.gif