UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042800.upa.cvt Date: 0000Z 28 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:0000Z 28 APR 25 Station: CYAH WMO ident: 71823 Latitude: 53.75 Longitude: -73.68 Elevation: 306.00 ------------------------------------------------------------------------------- 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 116 SFC 978 306 9.6 -1.4 46 11.0 4.7 330 4 284.6 285.2 278.9 294.6 3.52 2 925 760 5.4 -2.6 56 8.0 2.0 320 9 284.8 285.4 278.9 294.6 3.41 3 879 1174 1.4 -3.5 70 4.9 -0.6 294 12 284.9 285.4 278.8 294.5 3.35 4 850 1444 0.4 -5.6 64 6.0 -2.0 295 28 286.6 287.1 279.1 295.1 2.96 5 830 1635 1.6 -7.4 51 9.0 -1.9 297 31 289.8 290.3 280.3 297.6 2.64 6 759 2349 -3.9 -10.9 58 7.0 -6.3 305 34 291.3 291.7 280.4 297.9 2.19 7 717 2795 -7.9 -10.6 81 2.7 -8.8 309 31 291.7 292.1 280.8 298.8 2.38 8 713 2838 -8.1 -8.6 96 0.5 -8.3 308 31 292.0 292.5 281.4 300.3 2.80 9 700 2981 -9.1 -11.2 85 2.1 -9.8 305 29 292.4 292.8 281.0 299.4 2.32 10 664 3388 -11.7 -15.0 76 3.3 -12.6 295 27 293.9 294.3 281.1 299.4 1.79 11 636 3716 -14.3 -15.9 88 1.6 -14.7 295 25 294.6 294.9 281.3 299.9 1.74 12 631 3776 -12.9 -16.8 73 3.9 -14.0 295 26 296.9 297.2 282.1 301.9 1.63 13 628 3813 -12.3 -31.3 19 19.0 -15.8 295 27 298.0 298.1 281.1 299.5 0.45 14 623 3874 -12.3 -35.3 13 23.0 -16.1 295 28 298.7 298.7 281.2 299.7 0.30 15 618 3935 -12.5 -38.5 9 26.0 -16.4 295 29 299.1 299.2 281.3 299.9 0.22 16 609 4047 -13.1 -29.1 25 16.0 -16.2 295 31 299.7 299.8 282.0 301.5 0.57 17 606 4085 -13.3 -37.3 11 24.0 -17.0 295 32 299.9 299.9 281.7 300.8 0.26 18 588 4314 -14.7 -23.7 46 9.0 -16.7 295 36 300.8 301.0 283.0 303.9 0.96 19 563 4641 -17.3 -24.3 54 7.0 -18.8 300 34 301.5 301.7 283.2 304.6 0.95 20 550 4816 -18.5 -24.5 59 6.0 -19.8 300 35 302.1 302.3 283.5 305.2 0.96 21 504 5462 -23.3 -34.3 36 11.0 -24.8 295 33 303.9 304.0 283.5 305.4 0.41 22 500 5520 -23.7 -32.7 43 9.0 -25.0 295 33 304.1 304.2 283.7 305.8 0.49 23 492 5637 -24.9 -32.9 47 8.0 -26.1 295 34 304.1 304.2 283.7 305.7 0.49 24 425 6679 -34.1 -38.4 65 4.3 -34.5 295 39 305.3 305.4 284.0 306.5 0.33 25 410 6929 -35.7 -42.7 49 7.0 -36.2 298 43 306.4 306.5 284.2 307.2 0.22 26 400 7100 -36.9 -43.9 48 7.0 -37.4 300 47 307.0 307.1 284.5 307.7 0.19 27 379 7470 -40.1 -44.0 66 3.9 -40.4 300 50 307.6 307.6 284.7 308.3 0.20 28 373 7579 -40.5 -46.5 52 6.0 -40.8 300 51 308.5 308.5 284.9 309.0 0.16 29 365 7726 -41.3 -45.4 64 4.1 -41.5 301 52 309.3 309.3 285.3 310.0 0.18 30 358 7857 -41.9 -49.9 41 8.0 -42.3 302 54 310.2 310.2 285.5 310.6 0.11 31 334 8323 -45.5 -51.5 51 6.0 -45.7 307 59 311.5 311.5 286.0 311.9 0.10 32 331 8383 -45.9 -53.9 40 8.0 -46.2 308 60 311.8 311.8 286.1 312.1 0.08 33 300 9030 -50.7 -57.7 43 7.0 -50.9 315 68 313.9 313.9 286.8 314.1 0.05 34 297 9096 -51.3 -59.3 38 8.0 -51.5 315 68 313.9 314.0 286.8 314.1 0.04 35 279 9500 -53.8 -61.0 41 7.3 -53.9 320 70 316.1 316.1 287.5 316.2 0.04 36 250 10200 -58.1 -64.1 46 6.0 -58.2 315 64 319.7 319.7 288.7 319.8 0.03 37 248 10250 -58.3 -64.3 46 6.0 -58.4 315 65 320.1 320.1 288.8 320.2 0.03 38 243 10378 -58.3 -64.3 46 6.0 -58.4 313 64 322.0 322.0 289.4 322.1 0.03 39 238 10508 -58.7 -69.7 23 11.0 -58.8 312 64 323.3 323.3 289.8 323.4 0.01 40 225 10862 -55.5 -73.5 9 18.0 -55.7 313 56 333.5 333.5 292.7 333.5 0.01 41 217 11091 -57.1 -74.1 10 17.0 -57.3 309 47 334.4 334.4 292.9 334.5 0.01 42 215 11150 -55.9 -75.9 6 20.0 -56.1 306 45 337.2 337.2 293.6 337.2 0.01 43 200 11610 -54.3 -78.3 4 24.0 -54.6 285 39 346.8 346.8 295.9 346.8 0.00 44 193 11839 -54.1 -81.1 2 27.0 -54.4 285 38 350.7 350.7 296.8 350.7 0.00 45 184 12145 -55.1 -82.1 2 27.0 -55.4 285 38 353.8 353.8 297.4 353.9 0.00 46 167 12768 -52.7 -83.7 1 31.0 -53.1 294 33 367.8 367.8 300.2 367.8 0.00 47 150 13460 -53.7 -84.7 1 31.0 -54.1 300 37 377.5 377.5 301.8 377.6 0.00 48 144 13722 -54.5 -84.5 1 30.0 -54.9 293 35 380.6 380.6 302.3 380.6 0.00 49 100 16070 -52.3 -84.3 1 32.0 -53.0 300 20 426.7 426.7 308.4 426.7 0.00 50 93 16539 -51.9 -84.9 1 33.0 -52.7 296 19 436.4 436.4 309.5 436.4 0.00 51 87 16969 -53.5 -85.5 1 32.0 -54.2 295 17 441.6 441.6 310.0 441.6 0.00 52 70 18370 -52.1 -85.1 1 33.0 -53.1 245 18 472.9 472.9 312.9 472.9 0.00 53 50 20550 -52.5 -85.5 1 33.0 -53.8 340 4 519.8 519.8 316.3 519.8 0.01 54 33 23241 -50.5 -85.5 1 35.0 -52.8 158 10 590.6 590.6 320.2 590.7 0.01 55 30 23860 -51.7 -85.7 1 34.0 -53.9 20 7 603.7 603.7 320.7 603.8 0.01 56 25 25041 -52.7 -86.7 1 34.0 -55.0 340 10 633.1 633.1 322.0 633.2 0.01 57 20 26490 -50.7 -85.7 1 35.0 -54.0 85 6 681.0 681.0 323.8 681.1 0.01 58 14 28825 -46.9 -84.9 1 38.0 -52.5 68 18 767.0 767.0 326.4 767.2 0.02 59 10 31050 -46.7 -84.7 1 38.0 -53.6 80 5 845.2 845.2 328.3 845.5 0.03 60 8.5 32131 -45.5 -84.5 0 39.0 -53.7 890.1 890.2 329.2 890.5 0.04 61 8.3 32289 -46.3 -85.3 0 39.0 -54.2 893.1 893.1 329.3 893.4 0.03 62 7.5 32971 -40.7 -81.7 0 41.0 -52.0 942.0 942.1 330.2 942.7 0.07 63 6.3 34161 -39.5 -80.5 0 41.0 -52.4 995.3 995.4 331.1 996.4 0.10 64 5.2 35491 -33.7 -77.7 0 44.0 -51.3 1077.6 1077.7 332.3 1079.9 0.18 TRP 248 10250 -58.3 -64.3 46 6.0 -58.4 315 65 320.1 320.1 288.8 320.2 0.03 WND 279 9500 -53.8 -61.0 41 7.3 -53.9 320 70 316.1 316.1 287.5 316.2 0.04 Sounding variables and indices 1000-500 mb thick: 5404.00 m Freezing level: 809.35 mb = 1842.92 m = 6046.25 ft Wetbulb zero: 890.15 mb = 1071.80 m = 3516.38 ft Precipitable water: 0.43 inches Sfc-500 mean rel hum: 57.74 % Est. max temperature: 14.84 C = 58.72 F Sfc-Lift cond lev (LCL): 826.57 mb = 1668.43 m = 5473.78 ft T: 1.35 C 700-500 lapse rate: 5.75 C/km ThetaE index: 0.92 C Layer 700.0- 664.0 mb Conv cond level (CCL): 742.10 mb = 2525.12 m = 8284.42 ft Mean mixing ratio: 3.43 g/kg Conv temperature: 16.50 C = 61.70 F Cap Strength: 9.08 C Lifted Index: 9.15 C Risk: None Lifted Index @300 mb: 13.79 C Lifted Index @700 mb: 3.60 C Showalter Index: 8.74 C Risk: None Total Totals Index: 42.20 C Risk: None Vertical Totals Index: 24.10 C Cross Totals Index: 18.10 C K Index: 16.40 Risk: < 20 % chance of thunderstorms Sweat Index: 89.00 Risk: None Energy Index: 2.24 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.20 J/kg Max Up Vert Vel: 1.55 m/s Conv Inhibition (B-): 75638.50 J/kg Cap Strength: 8.97 C Lift Cond Lev (LCL): 818.91 mb = 1742.76 m = 5717.65 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 329 at 22 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 ---------------------------------------------------------- 0 978 306 330 4 2.0 -3.5 | 149 18 -8.9 15.1 1 942 610 315 8 5.7 -5.7 | 158 14 -5.3 12.9 2 925 760 320 9 5.8 -6.9 | 156 13 -5.2 11.6 3 908 914 315 9 6.4 -6.4 | 159 13 -4.6 12.2 4 874 1219 290 12 11.3 -4.1 | 181 14 0.3 14.4 5 850 1444 295 28 25.4 -11.8 | 245 16 14.4 6.7 6 810 1829 300 34 29.4 -17.0 | 265 19 18.5 1.5 7 779 2134 305 34 27.9 -19.5 | 273 17 16.9 -1.0 8 750 2438 305 34 27.9 -19.5 | 273 17 16.9 -1.0 9 721 2743 310 32 24.5 -20.6 | 279 14 13.6 -2.0 10 700 2981 305 29 23.8 -16.6 | 262 13 12.8 1.9 11 694 3048 310 32 24.5 -20.6 | 279 14 13.6 -2.0 12 666 3353 295 27 24.5 -11.4 | 242 15 13.5 7.1 13 640 3658 295 24 21.8 -10.1 | 232 14 10.8 8.4 14 590 4267 295 36 32.6 -15.2 | 261 22 21.7 3.3 15 567 4572 300 34 29.4 -17.0 | 265 19 18.5 1.5 16 544 4877 300 35 30.3 -17.5 | 267 19 19.4 1.0 17 500 5520 295 33 29.9 -13.9 | 256 20 19.0 4.6 18 461 6096 295 38 34.4 -16.1 | 264 24 23.5 2.5 19 423 6706 295 39 35.3 -16.5 | 265 24 24.4 2.1 20 400 7100 300 47 40.7 -23.5 | 279 30 29.8 -5.0 21 370 7620 300 51 44.2 -25.5 | 282 34 33.2 -7.0 22 300 9030 315 68 48.1 -48.1 | 309 47 37.1 -29.5 23 295 9144 315 68 48.1 -48.1 | 309 47 37.1 -29.5 24 279 9500 320 70 45.0 -53.6 | 316 49 34.0 -35.1 25 268 9754 320 70 45.0 -53.6 | 316 49 34.0 -35.1 26 250 10200 315 64 45.3 -45.3 | 308 43 34.3 -26.7 27 248 10250 315 65 46.0 -46.0 | 308 44 35.0 -27.4 28 232 10668 310 63 48.3 -40.5 | 300 43 37.3 -22.0 29 221 10973 315 52 36.8 -36.8 | 305 32 25.8 -18.2 30 211 11278 300 40 34.6 -20.0 | 274 24 23.7 -1.5 31 201 11582 295 45 40.8 -19.0 | 271 30 29.8 -0.5 32 200 11610 285 39 37.7 -10.1 | 252 28 26.7 8.4 33 192 11887 285 38 36.7 -9.8 | 251 27 25.8 8.7 34 183 12192 285 38 36.7 -9.8 | 251 27 25.8 8.7 35 166 12802 295 33 29.9 -13.9 | 256 20 19.0 4.6 36 158 13106 280 34 33.5 -5.9 | 241 26 22.5 12.6 37 151 13411 295 42 38.1 -17.7 | 268 27 27.1 0.8 38 150 13460 300 37 32.0 -18.5 | 270 21 21.1 0.0 39 137 14021 285 33 31.9 -8.5 | 244 23 20.9 10.0 40 119 14935 300 29 25.1 -14.5 | 254 15 14.2 4.0 41 114 15240 290 19 17.9 -6.5 | 210 14 6.9 12.0 42 109 15545 290 17 16.0 -5.8 | 202 14 5.0 12.7 43 103 15850 290 26 24.4 -8.9 | 234 17 13.5 9.6 44 100 16070 300 20 17.3 -10.0 | 217 11 6.4 8.5 45 99 16154 275 20 19.9 -1.7 | 208 19 9.0 16.8 46 94 16459 300 20 17.3 -10.0 | 217 11 6.4 8.5 47 90 16764 285 15 14.5 -3.9 | 194 15 3.5 14.7 48 82 17374 315 20 14.1 -14.1 | 216 5 3.2 4.4 49 78 17678 320 15 9.6 -11.5 | 169 7 -1.3 7.1 50 74 17983 305 12 9.8 -6.9 | 175 12 -1.1 11.7 51 71 18288 240 10 8.7 5.0 | 174 24 -2.3 23.5 52 70 18370 245 18 16.3 7.6 | 192 27 5.4 26.1 53 65 18898 255 17 16.4 4.4 | 193 24 5.5 22.9 54 62 19202 295 28 25.4 -11.8 | 245 16 14.4 6.7 55 59 19507 310 18 13.8 -11.6 | 202 8 2.8 7.0 56 56 19812 315 13 9.2 -9.2 | 169 10 -1.8 9.3 57 53 20117 325 12 6.9 -9.8 | 155 10 -4.1 8.7 58 50 20550 340 4 1.4 -3.8 | 147 18 -9.6 14.8 59 49 20726 325 11 6.3 -9.0 | 154 11 -4.6 9.5 60 46 21031 280 2 2.0 -0.3 | 154 20 -9.0 18.2 61 44 21336 305 2 1.6 -1.1 | 152 20 -9.3 17.4 62 40 21946 5 10 -0.9 -10.0 | 126 15 -11.8 8.6 63 38 22250 70 14 -13.2 -4.8 | 120 28 -24.1 13.8 64 37 22555 105 13 -12.6 3.4 | 133 32 -23.5 21.9 65 35 22860 145 12 -6.9 9.8 | 148 34 -17.8 28.4 66 33 23165 175 10 -0.9 10.0 | 157 31 -11.8 28.5 67 30 23860 20 7 -2.4 -6.6 | 132 18 -13.3 12.0 68 25 24994 335 10 4.2 -9.1 | 145 12 -6.7 9.5 69 21 26213 90 10 -10.0 0.0 | 132 28 -20.9 18.5 70 20 26490 85 6 -6.0 -0.5 | 137 25 -16.9 18.0 71 17 27432 340 3 1.0 -2.8 | 148 19 -9.9 15.7 72 17 27737 40 10 -6.4 -7.7 | 122 21 -17.4 10.9 73 16 28042 60 12 -10.4 -6.0 | 120 25 -21.3 12.5 74 15 28346 40 11 -7.1 -8.4 | 119 21 -18.0 10.1 75 14 28956 75 20 -19.3 -5.2 | 114 33 -30.3 13.4 76 13 29261 130 12 -9.2 7.7 | 143 33 -20.1 26.3 77 13 29566 100 10 -9.8 1.7 | 134 29 -20.8 20.3 78 12 29870 135 2 -1.4 1.4 | 148 23 -12.4 20.0 79 10 31050 80 5 -4.9 -0.9 | 138 24 -15.9 17.7 Wind Parameters Mean winds (0-6000m): 299.4 at 28.7 knts Storm direction: 329.4 at 21.5 knts Shear (0-3000m) pos: 2.5 neg: 2.7 tot: 5.2 10-3/s Storm rel Dir Shear (0-3000m): 97.8 deg Storm rel helicity (0-3000m) pos: 131.5 neg: -31.9 tot: 99.6 m^2/s^2 ave: 33.2 10^-3 m/s^2 rel: 0.51 Storm rel vorticity (0-3000m) horiz: 8.6 stream: 4.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.02 Bulk Shear: 65.30 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 ------------------------------------------------------------------------------- 500 319 7 154 15| 0.0 5.3 5.3| 9.1 -0.6 8.5 17.0 0.39| 5.6 2.1 1000 308 9 163 14| 0.0 7.8 7.8| 50.0 -0.6 49.4 49.4 0.78| 9.0 7.1 1500 301 16 193 11| 5.4 5.2 10.7|109.9 -0.6 109.3 72.9 0.86| 11.6 9.9 2000 302 20 219 10| 4.3 3.9 8.2|123.2 -0.6 122.6 61.3 0.86| 9.5 8.2 2500 303 23 234 10| 3.0 3.1 6.2|128.3 -3.9 124.4 49.8 0.78| 8.5 6.6 3000 304 24 241 10| 2.5 2.7 5.2|131.5 -31.9 99.6 33.2 0.51| 8.6 4.4 4000 301 25 243 12| 2.9 2.0 4.9|169.5 -44.9 124.6 31.1 0.47| 8.4 3.9 5000 301 27 249 13| 2.4 1.7 4.1|178.1 -56.6 121.5 24.3 0.42| 7.3 3.1 6000 299 29 252 15| 2.0 1.8 3.7|194.9 -62.2 132.7 22.1 0.41| 6.7 2.7 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250428.00.gif