UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041912.upa.cvt Date: 1200Z 19 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:1200Z 19 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 66 SFC 971 306 -2.3 -3.5 91 1.2 -2.7 60 6 273.1 273.6 272.0 281.4 3.04 2 925 684 -4.7 -5.6 93 0.9 -5.0 85 18 274.5 275.0 272.3 282.0 2.72 3 893 960 -6.3 -7.5 91 1.2 -6.7 83 21 275.6 276.0 272.5 282.4 2.43 4 850 1345 -7.5 -8.7 91 1.2 -7.9 85 12 278.3 278.7 273.9 284.9 2.33 5 732 2501 -11.1 -11.1 100 0.0 -11.1 221 6 286.5 286.9 278.2 293.1 2.24 6 700 2844 -11.3 -11.7 97 0.4 -11.4 250 8 290.0 290.4 279.8 296.6 2.23 7 669 3190 -12.1 -12.7 95 0.6 -12.3 247 12 292.9 293.2 281.0 299.3 2.15 8 631 3635 -15.1 -15.2 99 0.1 -15.2 254 17 294.4 294.7 281.3 300.0 1.86 9 627 3683 -13.9 -14.2 98 0.3 -14.0 255 17 296.3 296.6 282.4 302.5 2.03 10 597 4054 -15.1 -18.1 78 3.0 -15.9 258 23 299.1 299.4 283.0 303.9 1.54 11 559 4547 -18.1 -24.1 59 6.0 -19.4 273 29 301.2 301.4 283.1 304.4 0.97 12 517 5125 -22.7 -24.5 85 1.8 -23.1 265 38 302.5 302.6 283.7 305.8 1.02 13 500 5370 -23.1 -24.5 88 1.4 -23.4 265 47 304.9 305.1 284.7 308.3 1.05 14 496 5429 -23.1 -24.3 90 1.2 -23.4 263 48 305.6 305.8 285.0 309.1 1.08 15 478 5699 -24.1 -27.5 73 3.4 -24.7 257 49 307.6 307.7 285.5 310.4 0.84 16 476 5729 -24.5 -27.6 75 3.1 -25.1 256 49 307.5 307.6 285.4 310.2 0.83 17 468 5852 -25.5 -28.7 75 3.2 -26.1 256 50 307.7 307.9 285.4 310.3 0.76 18 464 5914 -25.7 -31.7 57 6.0 -26.6 257 50 308.2 308.3 285.4 310.2 0.58 19 410 6797 -33.1 -35.6 78 2.5 -33.4 256 52 309.8 309.9 285.8 311.3 0.45 20 400 6970 -34.1 -41.1 49 7.0 -34.7 255 52 310.7 310.7 285.9 311.6 0.26 21 393 7093 -35.1 -44.1 39 9.0 -35.8 256 53 310.9 311.0 285.9 311.6 0.19 22 367 7566 -39.5 -44.3 60 4.8 -39.8 259 55 311.2 311.3 286.0 312.0 0.20 23 358 7736 -40.9 -47.9 47 7.0 -41.3 260 55 311.6 311.6 286.1 312.1 0.14 24 319 8508 -48.1 -50.1 80 2.0 -48.2 256 51 312.0 312.1 286.2 312.5 0.12 25 315 8591 -48.9 -51.3 76 2.4 -49.0 256 51 312.0 312.1 286.2 312.4 0.11 26 312 8654 -49.5 -54.5 56 5.0 -49.7 256 51 312.1 312.1 286.2 312.3 0.07 27 307 8760 -50.5 -54.8 60 4.3 -50.6 255 50 312.1 312.1 286.2 312.4 0.07 28 300 8910 -51.5 -56.4 56 4.9 -51.6 255 53 312.8 312.8 286.4 313.0 0.06 29 260 9823 -58.5 -60.8 75 2.3 -58.5 255 60 315.5 315.5 287.3 315.7 0.04 30 254 9970 -57.2 -65.3 35 8.1 -57.3 260 66 319.6 319.6 288.6 319.7 0.02 31 250 10070 -56.3 -68.3 21 12.0 -56.5 260 62 322.4 322.4 289.5 322.4 0.02 32 249 10096 -55.7 -69.7 16 14.0 -55.9 260 62 323.6 323.6 289.9 323.7 0.01 33 215 11040 -51.7 -79.7 2 28.0 -52.1 262 61 343.7 343.7 295.2 343.7 0.00 34 200 11510 -50.7 -80.7 2 30.0 -51.1 270 55 352.5 352.5 297.2 352.5 0.00 35 172 12492 -50.1 -82.1 1 32.0 -50.7 270 48 369.0 369.0 300.4 369.0 0.00 36 156 13126 -52.1 -83.1 1 31.0 -52.6 270 46 376.1 376.1 301.6 376.1 0.00 37 150 13380 -50.5 -83.5 1 33.0 -51.1 270 45 383.1 383.1 302.8 383.1 0.00 38 147 13512 -49.7 -82.7 1 33.0 -50.4 266 43 386.7 386.7 303.3 386.7 0.00 39 137 13970 -51.3 -83.3 1 32.0 -51.9 272 40 391.7 391.7 304.0 391.7 0.00 40 114 15171 -47.7 -83.7 1 36.0 -48.7 277 32 419.5 419.5 307.7 419.6 0.00 41 106 15648 -49.9 -83.9 1 34.0 -50.8 275 27 424.2 424.2 308.2 424.2 0.00 42 102 15900 -48.3 -84.3 1 36.0 -49.4 272 24 431.9 432.0 309.0 432.0 0.00 43 100 16030 -49.3 -84.3 1 35.0 -50.3 270 23 432.5 432.5 309.1 432.5 0.00 44 97 16229 -49.1 -84.1 1 35.0 -50.1 274 22 436.6 436.6 309.6 436.7 0.00 45 70 18360 -50.5 -85.5 1 35.0 -51.7 255 18 476.3 476.3 313.1 476.4 0.00 46 50 20560 -50.7 -86.7 1 36.0 -52.3 180 1 524.0 524.0 316.5 524.0 0.00 47 30 23880 -51.3 -87.3 1 36.0 -53.6 30 1 604.8 604.8 320.8 604.8 0.01 48 26 24807 -52.3 -87.3 1 35.0 -54.6 93 12 627.2 627.2 321.8 627.3 0.01 49 20 26520 -48.1 -87.1 0 39.0 -52.2 170 11 688.9 688.9 324.1 689.0 0.01 50 19 26859 -47.7 -86.7 0 39.0 -52.1 163 13 700.4 700.4 324.4 700.5 0.01 51 15 28410 -51.5 -87.5 1 36.0 -55.3 49 9 736.7 736.7 325.6 736.8 0.01 52 12 29868 -49.3 -87.3 0 38.0 -54.5 80 24 793.1 793.1 327.1 793.2 0.02 53 10 31080 -43.5 -83.5 0 40.0 -52.0 100 23 857.2 857.2 328.5 857.5 0.04 54 8.8 31937 -45.3 -85.3 0 40.0 -53.4 882.1 882.1 329.1 882.4 0.03 55 7.0 33482 -39.9 -80.9 0 41.0 -52.0 964.1 964.2 330.6 965.0 0.08 TRP 260 9823 -58.5 -60.8 75 2.3 -58.5 255 60 315.5 315.5 287.3 315.7 0.04 WND 254 9970 -57.2 -65.3 35 8.1 -57.3 260 66 319.6 319.6 288.6 319.7 0.02 Sounding variables and indices 1000-500 mb thick: 5304.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.42 inches Sfc-500 mean rel hum: 88.78 % Est. max temperature: 4.68 C = 40.43 F Sfc-Lift cond lev (LCL): 952.72 mb = 454.01 m = 1489.53 ft T: -3.24 C 700-500 lapse rate: 4.67 C/km Conv cond level (CCL): 892.33 mb = 965.94 m = 3169.05 ft Mean mixing ratio: 2.67 g/kg Conv temperature: 0.21 C = 32.38 F Cap Strength: 17.42 C Lifted Index: 19.13 C Risk: None Lifted Index @300 mb: 21.72 C Lifted Index @700 mb: 9.77 C Showalter Index: 17.02 C Risk: None Total Totals Index: 30.00 C Risk: None Vertical Totals Index: 15.60 C Cross Totals Index: 14.40 C K Index: 6.50 Risk: None Sweat Index: 71.00 Risk: None Energy Index: 4.88 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 13.21 J/kg Max Up Vert Vel: 5.14 m/s Conv Inhibition (B-): 69991.49 J/kg Cap Strength: 18.70 C Lift Cond Lev (LCL): 904.29 mb = 861.57 m = 2826.63 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 288 at 17 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 ---------------------------------------------------------- 0 971 306 60 6 -5.2 -3.0 | 96 21 -21.3 2.2 1 934 610 80 18 -17.7 -3.1 | 93 34 -33.8 2.0 2 925 684 85 18 -17.9 -1.6 | 96 34 -34.1 3.6 3 898 914 85 22 -21.9 -1.9 | 95 38 -38.0 3.2 4 864 1219 70 14 -13.2 -4.8 | 91 29 -29.3 0.4 5 850 1345 85 12 -12.0 -1.0 | 98 28 -28.1 4.1 6 798 1829 120 6 -5.2 3.0 | 111 23 -21.3 8.2 7 767 2134 170 5 -0.9 4.9 | 121 20 -17.0 10.1 8 738 2438 210 6 3.0 5.2 | 128 17 -13.1 10.4 9 709 2743 265 5 5.0 0.4 | 117 12 -11.1 5.6 10 700 2844 250 8 7.5 2.7 | 133 12 -8.6 7.9 11 681 3048 245 10 9.1 4.2 | 143 12 -7.1 9.4 12 628 3658 255 17 16.4 4.4 | 182 10 0.3 9.6 13 579 4267 260 27 26.6 4.7 | 227 14 10.5 9.9 14 556 4572 275 29 28.9 -2.5 | 258 13 12.8 2.6 15 534 4877 265 30 29.9 2.6 | 241 16 13.8 7.8 16 500 5370 265 47 46.8 4.1 | 253 32 30.7 9.3 17 492 5486 260 49 48.3 8.5 | 247 35 32.1 13.7 18 471 5791 255 49 47.3 12.7 | 240 36 31.2 17.8 19 452 6096 260 52 51.2 9.0 | 248 38 35.1 14.2 20 400 6970 255 52 50.2 13.5 | 241 39 34.1 18.6 21 363 7620 260 55 54.2 9.6 | 249 41 38.0 14.7 22 303 8839 255 50 48.3 12.9 | 241 37 32.2 18.1 23 300 8910 255 53 51.2 13.7 | 242 40 35.1 18.9 24 289 9144 250 55 51.7 18.8 | 236 43 35.6 24.0 25 260 9823 255 60 58.0 15.5 | 244 47 41.8 20.7 26 254 9970 260 66 65.0 11.5 | 251 52 48.9 16.6 27 250 10058 260 66 65.0 11.5 | 251 52 48.9 16.6 28 250 10070 260 62 61.1 10.8 | 250 48 44.9 15.9 29 228 10668 255 65 62.8 16.8 | 245 52 46.7 22.0 30 200 11510 270 55 55.0 -0.0 | 262 39 38.9 5.2 31 189 11887 270 50 50.0 -0.0 | 261 34 33.9 5.2 32 150 13380 270 45 45.0 -0.0 | 260 29 28.9 5.2 33 149 13411 265 44 43.8 3.8 | 252 29 27.7 9.0 34 124 14630 280 36 35.5 -6.3 | 273 19 19.3 -1.1 35 118 14935 265 34 33.9 3.0 | 245 20 17.8 8.1 36 113 15240 280 32 31.5 -5.6 | 271 15 15.4 -0.4 37 100 16030 270 23 23.0 -0.0 | 233 9 6.9 5.2 38 98 16154 270 23 23.0 -0.0 | 233 9 6.9 5.2 39 94 16459 285 19 18.4 -4.9 | 264 2 2.2 0.2 40 89 16764 270 20 20.0 -0.0 | 217 6 3.9 5.2 41 74 17983 265 17 16.9 1.5 | 187 7 0.8 6.6 42 71 18288 240 12 10.4 6.0 | 153 13 -5.7 11.2 43 70 18360 255 18 17.4 4.7 | 187 10 1.3 9.8 44 62 19202 255 16 15.5 4.1 | 176 9 -0.7 9.3 45 56 19812 280 21 20.7 -3.6 | 252 5 4.6 1.5 46 54 20117 330 10 5.0 -8.7 | 73 12 -11.1 -3.5 47 51 20422 25 1 -0.4 -0.9 | 104 17 -16.5 4.3 48 50 20560 180 1 0.0 1.0 | 111 17 -16.1 6.2 49 44 21336 225 6 4.2 4.2 | 128 15 -11.9 9.4 50 35 22860 115 12 -10.9 5.1 | 111 29 -27.0 10.2 51 30 23880 30 1 -0.5 -0.9 | 104 17 -16.6 4.3 52 28 24384 70 13 -12.2 -4.4 | 91 28 -28.3 0.7 53 24 25298 120 10 -8.7 5.0 | 112 27 -24.8 10.2 54 23 25603 105 10 -9.7 2.6 | 107 27 -25.8 7.8 55 22 25908 75 13 -12.6 -3.4 | 94 29 -28.7 1.8 56 21 26213 120 18 -15.6 9.0 | 114 35 -31.7 14.2 57 20 26518 105 12 -11.6 3.1 | 107 29 -27.7 8.3 58 20 26520 170 11 -1.9 10.8 | 132 24 -18.0 16.0 59 19 26822 160 14 -4.8 13.2 | 131 28 -20.9 18.3 60 17 27432 220 2 1.3 1.5 | 114 16 -14.8 6.7 61 17 27737 220 10 6.4 7.7 | 143 16 -9.7 12.8 62 16 28042 25 13 -5.5 -11.8 | 73 23 -21.6 -6.6 63 14 28651 65 7 -6.3 -3.0 | 96 23 -22.5 2.2 64 12 29870 80 24 -23.6 -4.2 | 91 40 -39.8 1.0 65 10 31080 100 23 -22.7 4.0 | 103 40 -38.8 9.2 Wind Parameters Mean winds (0-6000m): 257.8 at 22.6 knts Storm direction: 287.8 at 16.9 knts Shear (0-3000m) pos: 1.1 neg: 2.3 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 61.9 deg Storm rel helicity (0-3000m) pos: 144.1 neg: -45.8 tot: 98.3 m^2/s^2 ave: 32.8 10^-3 m/s^2 rel: 0.31 Storm rel vorticity (0-3000m) horiz: 10.4 stream: 3.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.07 Bulk Shear: 182.76 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 80 15 95 31| 15.3 0.0 15.3| 19.0 -12.4 6.5 13.0 0.02| 16.5 0.3 1000 80 16 94 32| 7.7 3.9 11.6| 39.8 -38.3 1.4 1.4 0.01| 15.1 0.1 1500 83 14 97 30| 3.5 2.6 6.1| 87.3 -38.3 49.0 32.7 0.18| 13.2 2.4 2000 89 12 100 28| 2.3 2.0 4.2|117.2 -38.3 78.9 39.4 0.27| 11.8 3.2 2500 94 11 102 27| 1.4 1.6 2.9|125.1 -45.8 79.3 31.7 0.23| 11.1 2.6 3000 103 10 106 27| 1.1 2.3 3.4|144.1 -45.8 98.3 32.8 0.31| 10.4 3.2 4000 214 13 150 18| 2.5 1.7 4.2|184.8 -45.8 139.0 34.8 0.43| 9.7 4.2 5000 256 17 181 9| 2.3 2.9 5.2|230.3 -59.5 170.8 34.2 0.39| 10.4 4.0 6000 258 23 211 12| 2.2 2.9 5.1|276.2-134.1 142.1 23.7 0.31| 10.1 3.1 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250419.12.gif