UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042500.upa.cvt Date: 0000Z 25 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:0000Z 25 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 216 SFC 989 306 4.2 -8.8 38 13.0 -0.3 65 2 278.2 278.6 273.4 283.9 1.98 2 925 845 -0.7 -11.7 43 11.0 -4.1 20 6 278.6 278.9 273.1 283.4 1.68 3 850 1514 -6.1 -10.5 71 4.4 -7.5 285 9 279.8 280.1 274.3 285.5 2.02 4 848 1532 -6.3 -10.4 73 4.1 -7.6 291 9 279.7 280.1 274.3 285.6 2.04 5 844 1569 -6.3 -12.3 62 6.0 -8.1 302 9 280.1 280.4 274.1 285.2 1.76 6 831 1691 -5.9 -19.9 32 14.0 -9.3 341 8 281.8 281.9 273.8 284.6 0.95 7 791 2076 -6.7 -23.7 24 17.0 -10.5 41 4 284.9 285.1 275.2 287.1 0.71 8 719 2814 -11.1 -39.1 8 28.0 -15.0 36 6 288.0 288.0 275.9 288.6 0.18 9 713 2878 -11.5 -37.5 10 26.0 -15.2 28 5 288.2 288.3 276.1 288.9 0.21 10 706 2954 -11.5 -18.5 56 7.0 -13.3 18 4 289.0 289.3 278.1 292.9 1.26 11 705 2965 -11.5 -18.5 56 7.0 -13.3 17 4 289.2 289.4 278.2 293.0 1.26 12 700 3019 -12.1 -19.1 56 7.0 -13.8 10 3 289.1 289.3 278.0 292.8 1.21 13 604 4126 -21.3 -23.1 85 1.8 -21.7 15 10 290.9 291.1 278.6 294.0 0.99 14 597 4212 -20.1 -22.6 80 2.5 -20.6 18 10 293.3 293.5 279.8 296.5 1.04 15 534 5028 -26.3 -26.6 97 0.3 -26.3 334 3 295.4 295.5 280.4 298.0 0.81 16 500 5500 -30.1 -30.5 96 0.4 -30.2 245 3 296.3 296.4 280.6 298.3 0.60 17 462 6056 -34.7 -35.5 92 0.8 -34.8 259 5 297.4 297.5 280.8 298.7 0.40 18 440 6396 -35.9 -36.6 93 0.7 -36.0 241 10 300.0 300.1 281.9 301.3 0.38 19 437 6443 -36.1 -40.3 65 4.2 -36.4 245 10 300.4 300.4 281.8 301.3 0.26 20 434 6491 -36.5 -39.6 73 3.1 -36.7 251 11 300.5 300.5 282.0 301.4 0.28 21 405 6965 -40.1 -48.1 42 8.0 -40.5 269 20 301.8 301.8 282.3 302.2 0.12 22 400 7050 -40.9 -47.9 47 7.0 -41.2 265 22 301.8 301.9 282.3 302.3 0.13 23 377 7450 -44.5 -47.3 73 2.8 -44.6 257 22 302.2 302.3 282.5 302.7 0.14 24 353 7887 -48.3 -52.6 61 4.3 -48.4 237 20 302.9 302.9 282.7 303.2 0.08 25 328 8366 -52.5 -54.9 75 2.4 -52.5 256 20 303.5 303.5 282.9 303.8 0.07 26 322 8486 -52.7 -58.7 48 6.0 -52.8 252 17 304.8 304.8 283.4 305.0 0.04 27 306 8813 -54.7 -58.0 67 3.3 -54.8 250 18 306.5 306.5 284.1 306.7 0.05 28 300 8940 -55.3 -59.8 57 4.5 -55.4 250 19 307.4 307.4 284.4 307.6 0.04 29 292 9111 -56.5 -60.6 60 4.1 -56.6 255 20 308.1 308.1 284.7 308.2 0.04 30 289 9177 -56.3 -64.3 36 8.0 -56.4 255 19 309.3 309.3 285.1 309.4 0.02 31 286 9243 -56.5 -62.5 47 6.0 -56.6 255 19 309.9 309.9 285.3 310.0 0.03 32 273 9538 -55.5 -71.5 12 16.0 -55.7 260 18 315.5 315.5 287.3 315.5 0.01 33 265 9727 -54.7 -72.7 9 18.0 -54.9 271 19 319.4 319.4 288.5 319.4 0.01 34 250 10100 -53.9 -72.9 8 19.0 -54.1 270 30 325.9 325.9 290.6 326.0 0.01 35 221 10899 -51.1 -78.1 3 27.0 -51.5 272 28 341.9 341.9 294.8 342.0 0.00 36 200 11550 -50.7 -80.7 2 30.0 -51.1 270 34 352.5 352.5 297.2 352.5 0.00 37 181 12202 -50.3 -81.3 1 31.0 -50.8 275 39 363.3 363.3 299.4 363.4 0.00 38 179 12274 -50.5 -81.5 1 31.0 -51.0 274 38 364.2 364.2 299.5 364.2 0.00 39 150 13430 -49.7 -81.7 1 32.0 -50.4 270 29 384.4 384.4 302.9 384.4 0.00 40 142 13789 -48.5 -81.5 1 33.0 -49.3 276 26 392.6 392.6 304.2 392.6 0.00 41 127 14518 -50.3 -83.3 1 33.0 -51.0 255 25 402.1 402.1 305.5 402.1 0.00 42 118 14999 -48.3 -82.3 1 34.0 -49.3 255 27 414.3 414.3 307.0 414.3 0.00 43 113 15282 -50.5 -83.5 1 33.0 -51.3 253 21 415.4 415.4 307.2 415.4 0.00 44 109 15517 -49.1 -83.1 1 34.0 -50.0 241 25 422.3 422.3 308.0 422.3 0.00 45 103 15887 -50.3 -83.3 1 33.0 -51.2 266 16 426.9 426.9 308.5 426.9 0.00 46 100 16080 -49.3 -83.3 1 34.0 -50.3 245 17 432.5 432.5 309.1 432.5 0.00 47 90 16772 -48.7 -82.7 1 34.0 -49.9 270 16 446.9 446.9 310.6 446.9 0.00 48 86 17070 -50.3 -84.3 1 34.0 -51.3 260 11 449.5 449.5 310.8 449.5 0.00 49 84 17225 -48.5 -83.5 1 35.0 -49.8 258 14 456.2 456.2 311.4 456.2 0.00 50 71 18319 -53.7 -85.7 1 32.0 -54.5 253 25 467.6 467.6 312.4 467.6 0.00 51 70 18410 -53.5 -85.5 1 32.0 -54.4 280 14 469.9 469.9 312.6 469.9 0.00 52 56 19849 -50.9 -84.9 1 34.0 -52.3 202 12 506.8 506.8 315.4 506.9 0.01 53 50 20580 -53.3 -85.3 1 32.0 -54.5 75 3 517.9 517.9 316.2 517.9 0.01 54 48 20843 -53.9 -85.9 1 32.0 -55.1 99 4 522.5 522.5 316.5 522.6 0.01 55 39 22187 -50.9 -84.9 1 34.0 -52.8 316 12 562.1 562.1 318.8 562.1 0.01 56 35 22889 -52.3 -85.3 1 33.0 -54.1 82 10 576.1 576.1 319.5 576.1 0.01 57 30 23890 -51.1 -85.1 1 34.0 -53.4 160 5 605.3 605.3 320.9 605.4 0.01 58 20 26520 -51.3 -86.3 1 35.0 -54.4 80 15 679.1 679.2 323.7 679.2 0.01 59 13 29341 -47.7 -84.7 1 37.0 -53.2 69 10 780.7 780.7 326.8 780.9 0.02 60 11 30441 -48.7 -85.7 1 37.0 -54.4 80 12 815.2 815.2 327.6 815.4 0.02 61 10 31070 -47.1 -85.1 1 38.0 -53.8 75 13 843.7 843.7 328.2 844.0 0.03 62 5.8 34771 -35.3 -78.3 0 43.0 -51.2 1037.4 1037.5 331.8 1039.3 0.15 TRP 292 9111 -56.5 -60.6 60 4.1 -56.6 255 20 308.1 308.1 284.7 308.2 0.04 WND Sounding variables and indices 1000-500 mb thick: 5284.00 m Freezing level: 934.14 mb = 768.00 m = 2519.65 ft Wetbulb zero: Below ground Precipitable water: 0.24 inches Sfc-500 mean rel hum: 59.00 % Est. max temperature: 6.71 C = 44.08 F Sfc-Lift cond lev (LCL): 808.13 mb = 1908.59 m = 6261.70 ft T: -6.35 C 700-500 lapse rate: 7.26 C/km ThetaE index: 0.95 C Layer 844.0- 791.0 mb Conv cond level (CCL): 670.09 mb = 3346.74 m = 10979.97 ft Mean mixing ratio: 1.81 g/kg Conv temperature: 15.60 C = 60.07 F Cap Strength: 10.54 C Lifted Index: 10.90 C Risk: None Lifted Index @300 mb: 16.81 C Lifted Index @700 mb: 7.80 C Showalter Index: 9.49 C Risk: None Total Totals Index: 43.60 C Risk: None Vertical Totals Index: 24.00 C Cross Totals Index: 19.60 C K Index: 6.50 Risk: None Sweat Index: 21.00 Risk: None Energy Index: 2.69 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.30 J/kg Max Up Vert Vel: 2.57 m/s Conv Inhibition (B-): 80752.20 J/kg Cap Strength: 10.79 C Lift Cond Lev (LCL): 788.80 mb = 2097.45 m = 6881.33 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 27 at 4 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 ---------------------------------------------------------- 0 989 306 65 2 -1.8 -0.8 | 182 3 0.1 2.9 1 952 610 25 5 -2.1 -4.5 | 14 1 -0.2 -0.8 2 925 845 20 6 -2.1 -5.6 | 4 2 -0.1 -1.9 3 917 914 15 6 -1.6 -5.8 | 350 2 0.4 -2.1 4 882 1219 310 6 4.6 -3.9 | 271 7 6.5 -0.1 5 850 1514 285 9 8.7 -2.3 | 263 11 10.6 1.4 6 816 1829 25 8 -3.4 -7.3 | 23 4 -1.5 -3.5 7 785 2134 45 3 -2.1 -2.1 | 173 2 -0.2 1.6 8 754 2438 15 7 -1.8 -6.8 | 358 3 0.1 -3.0 9 725 2743 45 7 -4.9 -4.9 | 68 3 -3.0 -1.2 10 700 3019 10 3 -0.5 -3.0 | 241 2 1.4 0.8 11 642 3658 360 6 -0.0 -6.0 | 320 3 1.9 -2.3 12 591 4267 20 11 -3.8 -10.3 | 16 7 -1.8 -6.6 13 544 4877 340 3 1.0 -2.8 | 253 3 2.9 0.9 14 501 5486 315 1 0.7 -0.7 | 221 4 2.6 3.0 15 500 5500 245 3 2.7 1.3 | 223 7 4.6 5.0 16 459 6096 260 5 4.9 0.9 | 236 8 6.8 4.6 17 439 6401 240 10 8.7 5.0 | 230 14 10.6 8.7 18 420 6706 280 13 12.8 -2.3 | 264 15 14.7 1.5 19 400 7050 265 22 21.9 1.9 | 257 24 23.8 5.6 20 384 7315 265 22 21.9 1.9 | 257 24 23.8 5.6 21 367 7620 245 21 19.0 8.9 | 239 24 20.9 12.6 22 350 7925 235 20 16.4 11.5 | 230 24 18.3 15.2 23 334 8230 260 22 21.7 3.8 | 252 25 23.6 7.5 24 319 8534 250 16 15.0 5.5 | 242 19 17.0 9.2 25 300 8940 250 19 17.9 6.5 | 243 22 19.8 10.2 26 292 9111 255 20 19.3 5.2 | 247 23 21.2 8.9 27 291 9144 255 19 18.4 4.9 | 247 22 20.3 8.6 28 277 9449 255 18 17.4 4.7 | 247 21 19.3 8.4 29 252 10058 290 21 19.7 -7.2 | 279 22 21.7 -3.5 30 250 10100 270 30 30.0 -0.0 | 263 32 31.9 3.7 31 240 10363 270 33 33.0 -0.0 | 264 35 34.9 3.7 32 229 10668 280 27 26.6 -4.7 | 272 29 28.5 -1.0 33 219 10973 270 28 28.0 -0.0 | 263 30 29.9 3.7 34 209 11278 275 24 23.9 -2.1 | 266 26 25.8 1.6 35 200 11550 270 34 34.0 -0.0 | 264 36 35.9 3.7 36 181 12192 275 39 38.9 -3.4 | 270 41 40.8 0.3 37 158 13106 265 32 31.9 2.8 | 259 34 33.8 6.5 38 150 13430 270 29 29.0 -0.0 | 263 31 30.9 3.7 39 137 14021 280 24 23.6 -4.2 | 271 26 25.6 -0.4 40 131 14326 255 23 22.2 6.0 | 248 26 24.1 9.7 41 119 14935 255 29 28.0 7.5 | 249 32 29.9 11.2 42 114 15240 255 20 19.3 5.2 | 247 23 21.2 8.9 43 109 15545 240 26 22.5 13.0 | 236 30 24.4 16.7 44 104 15850 270 16 16.0 -0.0 | 258 18 17.9 3.7 45 100 16080 245 17 15.4 7.2 | 238 20 17.3 10.9 46 94 16459 240 19 16.5 9.5 | 234 23 18.4 13.2 47 90 16764 270 16 16.0 -0.0 | 258 18 17.9 3.7 48 86 17069 260 11 10.8 1.9 | 246 14 12.8 5.6 49 82 17374 255 17 16.4 4.4 | 246 20 18.3 8.1 50 78 17678 240 15 13.0 7.5 | 233 19 14.9 11.2 51 71 18288 245 28 25.4 11.8 | 240 31 27.3 15.6 52 70 18410 280 14 13.8 -2.4 | 265 16 15.7 1.3 53 68 18593 280 13 12.8 -2.3 | 264 15 14.7 1.5 54 65 18898 280 10 9.8 -1.7 | 260 12 11.8 2.0 55 62 19202 180 1 0.0 1.0 | 202 5 1.9 4.7 56 59 19507 180 10 0.0 10.0 | 188 14 1.9 13.7 57 56 19812 195 12 3.1 11.6 | 198 16 5.0 15.3 58 54 20117 255 10 9.7 2.6 | 241 13 11.6 6.3 59 51 20422 245 12 10.9 5.1 | 236 16 12.8 8.8 60 50 20580 75 3 -2.9 -0.8 | 162 3 -1.0 2.9 61 44 21336 145 6 -3.4 4.9 | 170 9 -1.5 8.6 62 42 21641 210 14 7.0 12.1 | 209 18 8.9 15.8 63 40 21946 260 13 12.8 2.3 | 248 16 14.7 6.0 64 37 22555 40 10 -6.4 -7.7 | 49 6 -4.5 -3.9 65 35 22860 80 10 -9.8 -1.7 | 104 8 -7.9 2.0 66 31 23774 130 10 -7.7 6.4 | 150 12 -5.7 10.1 67 30 23890 160 5 -1.7 4.7 | 181 8 0.2 8.4 68 28 24384 0 0 -0.0 -0.0 | 207 4 1.9 3.7 69 27 24689 20 10 -3.4 -9.4 | 15 6 -1.5 -5.7 70 24 25298 90 10 -10.0 0.0 | 115 9 -8.1 3.7 71 20 26520 80 15 -14.8 -2.6 | 95 13 -12.9 1.1 72 19 26822 65 13 -11.8 -5.5 | 80 10 -9.9 -1.8 73 18 27127 95 10 -10.0 0.9 | 120 9 -8.0 4.6 74 17 27432 75 7 -6.8 -1.8 | 112 5 -4.8 1.9 75 17 27737 85 10 -10.0 -0.9 | 109 9 -8.0 2.8 76 16 28042 55 10 -8.2 -5.7 | 72 7 -6.3 -2.0 77 14 28651 95 11 -11.0 1.0 | 117 10 -9.0 4.7 78 14 28956 60 10 -8.7 -5.0 | 79 7 -6.7 -1.3 79 13 29261 75 10 -9.7 -2.6 | 98 8 -7.7 1.1 80 13 29566 55 10 -8.2 -5.7 | 72 7 -6.3 -2.0 81 12 29870 85 11 -11.0 -1.0 | 107 9 -9.0 2.8 82 10 31070 75 13 -12.6 -3.4 | 92 11 -10.6 0.4 Wind Parameters Mean winds (0-6000m): 357.3 at 5.6 knts Storm direction: 27.3 at 4.2 knts Shear (0-3000m) pos: 1.6 neg: 1.9 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 110.0 deg Storm rel helicity (0-3000m) pos: 25.9 neg: -10.9 tot: 15.1 m^2/s^2 ave: 5.0 10^-3 m/s^2 rel: 0.08 Storm rel vorticity (0-3000m) horiz: 8.6 stream: 0.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 2.77 Bulk Shear: 1.19 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 29 4 94 0| 0.0 4.7 4.7| 0.0 -0.8 -0.8 -1.6 -0.64| 5.3 -3.4 1000 4 5 312 2| 0.0 4.2 4.2| 0.0 -6.9 -6.9 -6.9 -0.67| 7.1 -4.8 1500 341 6 299 5| 3.1 2.8 5.9| 21.2 -9.7 11.5 7.7 0.06| 10.6 0.6 2000 354 6 311 3| 2.1 2.1 4.2| 23.3 -10.0 13.3 6.7 0.11| 10.0 1.1 2500 4 6 327 3| 2.0 1.7 3.6| 25.5 -10.5 15.0 6.0 0.14| 9.2 1.3 3000 6 6 326 2| 1.6 1.9 3.5| 25.9 -10.9 15.1 5.0 0.08| 8.6 0.7 4000 8 6 335 3| 1.6 1.5 3.2| 31.1 -11.0 20.1 5.0 0.16| 7.4 1.2 5000 7 6 330 2| 1.3 1.6 2.9| 31.1 -20.4 10.7 2.1 -0.00| 7.0 -0.0 6000 357 6 310 3| 1.1 2.0 3.1| 34.6 -22.4 12.2 2.0 0.01| 6.6 0.0 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250425.00.gif