UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042712.upa.cvt Date: 1200Z 27 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:1200Z 27 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 126 SFC 978 306 3.8 -2.2 65 6.0 1.3 230 7 278.7 279.3 275.6 288.0 3.32 2 940 627 1.2 -3.8 69 5.0 -0.7 263 22 279.2 279.8 275.5 287.8 3.07 3 925 757 2.6 -4.4 60 7.0 -0.2 285 29 282.0 282.5 276.9 290.4 2.98 4 923 775 2.8 -4.2 60 7.0 0.0 286 29 282.3 282.9 277.1 290.9 3.03 5 919 810 6.0 -6.0 42 12.0 1.2 287 29 286.0 286.4 278.4 293.7 2.65 6 913 864 7.2 -5.8 39 13.0 1.9 288 30 287.7 288.2 279.4 295.7 2.71 7 907 918 7.4 -5.6 39 13.0 2.0 290 30 288.5 289.0 279.8 296.6 2.77 8 850 1449 3.6 -6.4 48 10.0 -0.4 290 30 289.9 290.4 280.5 298.1 2.78 9 701 2974 -10.1 -10.9 94 0.8 -10.4 295 46 291.2 291.6 280.6 298.2 2.37 10 700 2985 -10.1 -11.0 93 0.9 -10.4 295 46 291.3 291.7 280.6 298.3 2.36 11 671 3310 -12.1 -16.7 69 4.6 -13.3 291 41 292.6 292.9 280.1 297.3 1.54 12 663 3402 -11.7 -17.7 61 6.0 -13.3 289 40 294.1 294.3 280.7 298.5 1.43 13 630 3791 -14.5 -18.2 73 3.7 -15.4 286 35 295.2 295.4 281.2 299.7 1.45 14 602 4134 -16.1 -25.1 46 9.0 -17.9 289 37 297.2 297.4 281.3 299.9 0.83 15 593 4248 -16.5 -34.5 20 18.0 -19.3 290 37 298.0 298.1 281.0 299.2 0.35 16 575 4479 -17.9 -37.9 16 20.0 -20.6 295 36 299.0 299.1 281.3 299.9 0.25 17 568 4570 -18.3 -40.3 13 22.0 -21.1 297 36 299.6 299.6 281.4 300.3 0.20 18 535 5014 -21.5 -35.5 27 14.0 -23.4 305 35 300.9 301.0 282.3 302.1 0.35 19 518 5252 -23.1 -28.0 64 4.9 -23.9 305 37 301.8 301.9 283.1 304.2 0.74 20 500 5510 -24.9 -29.9 63 5.0 -25.7 305 40 302.7 302.8 283.3 304.8 0.64 21 417 6801 -34.1 -39.0 61 4.9 -34.6 295 40 307.0 307.1 284.6 308.1 0.31 22 404 7021 -35.9 -39.3 71 3.4 -36.2 295 41 307.5 307.5 284.8 308.6 0.31 23 400 7090 -36.3 -41.3 60 5.0 -36.7 295 41 307.8 307.9 284.8 308.7 0.26 24 383 7389 -38.7 -44.7 53 6.0 -39.1 298 42 308.5 308.5 285.0 309.2 0.19 25 332 8353 -46.5 -49.6 71 3.1 -46.6 300 41 310.7 310.7 285.7 311.1 0.12 26 319 8617 -47.9 -54.9 44 7.0 -48.1 298 40 312.3 312.3 286.2 312.6 0.07 27 305 8912 -49.7 -54.6 56 4.9 -49.8 288 36 313.8 313.8 286.8 314.1 0.08 28 300 9020 -50.3 -55.3 55 5.0 -50.4 285 34 314.5 314.5 287.0 314.7 0.07 29 295 9130 -50.5 -57.5 43 7.0 -50.7 285 34 315.7 315.7 287.4 315.9 0.05 30 267 9773 -55.5 -60.5 54 5.0 -55.6 277 33 317.5 317.5 288.0 317.7 0.04 31 256 10040 -56.9 -63.9 41 7.0 -57.0 279 32 319.3 319.3 288.5 319.4 0.03 32 250 10190 -58.1 -62.8 55 4.7 -58.2 280 31 319.7 319.7 288.7 319.8 0.03 33 234 10606 -60.5 -64.6 58 4.1 -60.6 280 34 322.2 322.2 289.5 322.3 0.03 34 229 10742 -59.5 -70.5 23 11.0 -59.6 281 32 325.7 325.7 290.5 325.7 0.01 35 225 10852 -58.9 -71.9 17 13.0 -59.0 282 33 328.2 328.2 291.2 328.3 0.01 36 219 11023 -58.7 -68.7 26 10.0 -58.8 283 34 331.1 331.1 292.0 331.2 0.02 37 216 11110 -58.3 -71.3 17 13.0 -58.5 284 35 333.0 333.0 292.6 333.1 0.01 38 209 11319 -55.9 -82.9 2 27.0 -56.1 284 35 339.9 339.9 294.3 339.9 0.00 39 200 11600 -56.3 -82.3 2 26.0 -56.5 280 32 343.6 343.6 295.2 343.6 0.00 40 196 11728 -55.7 -81.7 2 26.0 -55.9 279 32 346.6 346.6 295.8 346.6 0.00 41 169 12677 -52.9 -83.9 1 31.0 -53.3 284 30 366.2 366.2 299.9 366.2 0.00 42 152 13356 -55.3 -85.3 1 30.0 -55.6 272 25 373.4 373.4 301.2 373.4 0.00 43 150 13440 -55.1 -85.1 1 30.0 -55.5 290 36 375.1 375.1 301.5 375.1 0.00 44 127 14507 -53.3 -85.3 1 32.0 -53.8 276 27 396.7 396.7 304.8 396.7 0.00 45 123 14713 -54.1 -85.1 1 31.0 -54.6 277 26 398.9 398.9 305.0 398.9 0.00 46 111 15375 -51.3 -84.3 1 33.0 -52.0 287 21 416.0 416.0 307.2 416.0 0.00 47 100 16050 -53.3 -85.3 1 32.0 -53.9 270 27 424.7 424.7 308.3 424.8 0.00 48 89 16798 -52.7 -85.7 1 33.0 -53.5 277 19 440.3 440.3 309.9 440.3 0.00 49 84 17172 -50.9 -84.9 1 34.0 -51.9 302 15 451.3 451.3 311.0 451.4 0.00 50 70 18350 -52.5 -85.5 1 33.0 -53.5 265 17 472.1 472.1 312.8 472.1 0.00 51 50 20530 -53.7 -86.7 1 33.0 -54.9 225 5 516.9 516.9 316.1 517.0 0.00 52 30 23830 -53.1 -87.1 1 34.0 -55.0 80 13 599.9 599.9 320.6 599.9 0.01 53 20 26460 -51.3 -86.3 1 35.0 -54.4 300 2 679.1 679.2 323.7 679.2 0.01 54 15 28327 -51.1 -86.1 1 35.0 -55.0 60 14 738.1 738.1 325.6 738.2 0.02 55 14 28778 -48.1 -86.1 0 38.0 -53.2 92 16 762.9 762.9 326.3 763.1 0.02 56 10 31000 -46.9 -84.9 1 38.0 -53.7 140 12 844.5 844.5 328.2 844.7 0.03 57 9.7 31202 -46.7 -85.7 0 39.0 -53.8 852.6 852.6 328.4 852.9 0.03 58 8.7 31923 -47.3 -86.3 0 39.0 -54.5 877.2 877.3 329.0 877.5 0.03 59 7.6 32827 -42.1 -83.1 0 41.0 -52.5 932.8 932.8 330.1 933.4 0.05 60 4.9 35817 -39.1 -81.1 0 42.0 -53.5 1071.3 1071.4 332.2 1072.7 0.11 TRP 234 10606 -60.5 -64.6 58 4.1 -60.6 280 34 322.2 322.2 289.5 322.3 0.03 WND Sounding variables and indices 1000-500 mb thick: 5384.00 m Freezing level: 810.85 mb = 1849.73 m = 6068.59 ft Wetbulb zero: 953.75 mb = 509.39 m = 1671.22 ft Precipitable water: 0.41 inches Sfc-500 mean rel hum: 56.12 % Est. max temperature: 15.14 C = 59.26 F Sfc-Lift cond lev (LCL): 891.30 mb = 1060.84 m = 3480.40 ft T: 6.38 C 700-500 lapse rate: 5.86 C/km ThetaE index: 0.13 C Layer 940.0- 925.0 mb Conv cond level (CCL): 725.59 mb = 2701.18 m = 8862.02 ft Mean mixing ratio: 2.96 g/kg Conv temperature: 16.01 C = 60.82 F Cap Strength: 9.43 C Lifted Index: 9.86 C Risk: None Lifted Index @300 mb: 16.01 C Lifted Index @700 mb: 4.24 C Showalter Index: 5.37 C Risk: None Total Totals Index: 47.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 28.50 C Cross Totals Index: 18.50 C K Index: 21.20 Risk: 20-40 % chance of thunderstorms Sweat Index: 100.00 Risk: None Energy Index: 1.35 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 65.03 J/kg Max Up Vert Vel: 11.40 m/s Conv Inhibition (B-): 73492.72 J/kg Cap Strength: 9.62 C Lift Cond Lev (LCL): 809.86 mb = 1831.74 m = 6009.56 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 323 at 26 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 ---------------------------------------------------------- 0 978 306 230 7 5.4 4.5 | 158 28 -10.4 25.5 1 942 610 260 21 20.7 3.6 | 191 25 4.9 24.6 2 925 757 285 29 28.0 -7.5 | 222 18 12.2 13.5 3 907 914 290 30 28.2 -10.3 | 229 16 12.4 10.7 4 874 1219 285 30 29.0 -7.8 | 225 19 13.2 13.2 5 850 1449 290 30 28.2 -10.3 | 229 16 12.4 10.7 6 810 1829 290 33 31.0 -11.3 | 237 18 15.2 9.7 7 780 2134 290 34 31.9 -11.6 | 240 19 16.1 9.4 8 750 2438 290 37 34.8 -12.7 | 246 21 19.0 8.3 9 722 2743 295 41 37.2 -17.3 | 260 22 21.4 3.7 10 700 2985 295 46 41.7 -19.4 | 267 26 25.9 1.5 11 694 3048 295 46 41.7 -19.4 | 267 26 25.9 1.5 12 640 3658 285 35 33.8 -9.1 | 236 22 18.0 11.9 13 590 4267 290 37 34.8 -12.7 | 246 21 19.0 8.3 14 544 4877 305 35 28.7 -20.1 | 266 13 12.9 0.9 15 522 5182 305 36 29.5 -20.6 | 269 14 13.7 0.3 16 500 5510 305 40 32.8 -22.9 | 277 17 17.0 -2.0 17 460 6096 295 37 33.5 -15.6 | 253 19 17.7 5.3 18 400 7090 295 41 37.2 -17.3 | 260 22 21.4 3.7 19 370 7620 300 43 37.2 -21.5 | 271 21 21.4 -0.5 20 323 8534 300 41 35.5 -20.5 | 269 20 19.7 0.5 21 300 9020 285 34 32.8 -8.8 | 234 21 17.0 12.2 22 294 9144 285 34 32.8 -8.8 | 234 21 17.0 12.2 23 281 9449 275 35 34.9 -3.1 | 227 26 19.1 17.9 24 250 10190 280 31 30.5 -5.4 | 223 21 14.7 15.6 25 234 10606 280 34 33.5 -5.9 | 230 23 17.7 15.1 26 232 10668 280 32 31.5 -5.6 | 226 22 15.7 15.4 27 210 11278 285 36 34.8 -9.3 | 238 22 19.0 11.7 28 200 11600 280 32 31.5 -5.6 | 226 22 15.7 15.4 29 174 12497 275 34 33.9 -3.0 | 225 26 18.1 18.0 30 166 12802 290 28 26.3 -9.6 | 223 16 10.5 11.4 31 151 13411 270 25 25.0 -0.0 | 204 23 9.2 21.0 32 150 13440 290 36 33.8 -12.3 | 244 20 18.0 8.7 33 144 13716 290 36 33.8 -12.3 | 244 20 18.0 8.7 34 131 14326 275 27 26.9 -2.4 | 211 22 11.1 18.6 35 113 15240 280 25 24.6 -4.3 | 208 19 8.8 16.6 36 108 15545 295 16 14.5 -6.8 | 175 14 -1.3 14.2 37 103 15850 250 12 11.3 4.1 | 170 25 -4.5 25.1 38 100 16050 270 27 27.0 -0.0 | 208 24 11.2 21.0 39 98 16154 270 27 27.0 -0.0 | 208 24 11.2 21.0 40 94 16459 295 25 22.7 -10.6 | 213 12 6.9 10.4 41 90 16764 275 19 18.9 -1.7 | 189 20 3.1 19.3 42 81 17374 315 13 9.2 -9.2 | 151 14 -6.6 11.8 43 78 17678 290 15 14.1 -5.1 | 174 16 -1.7 15.8 44 74 17983 305 13 10.6 -7.5 | 159 14 -5.2 13.5 45 71 18288 260 11 10.8 1.9 | 168 23 -5.0 22.9 46 70 18350 265 17 16.9 1.5 | 183 22 1.1 22.5 47 67 18593 270 19 19.0 -0.0 | 189 21 3.2 21.0 48 64 18898 305 21 17.2 -12.0 | 189 9 1.4 8.9 49 61 19202 330 18 9.0 -15.6 | 128 9 -6.8 5.4 50 56 19812 260 10 9.8 1.7 | 165 23 -6.0 22.7 51 51 20422 325 1 0.6 -0.8 | 143 25 -15.2 20.2 52 50 20530 225 5 3.5 3.5 | 153 27 -12.3 24.5 53 44 21336 295 8 7.3 -3.4 | 154 20 -8.6 17.6 54 42 21641 325 10 5.7 -8.2 | 142 16 -10.1 12.8 55 40 21946 300 10 8.7 -5.0 | 156 18 -7.1 16.0 56 38 22250 75 12 -11.6 -3.1 | 123 33 -27.4 17.9 57 30 23830 80 13 -12.8 -2.3 | 123 34 -28.6 18.7 58 29 24079 75 13 -12.6 -3.4 | 122 33 -28.4 17.6 59 28 24384 125 10 -8.2 5.7 | 138 36 -24.0 26.7 60 25 24994 85 10 -10.0 -0.9 | 128 33 -25.8 20.1 61 24 25298 165 2 -0.5 1.9 | 145 28 -16.3 22.9 62 21 26213 160 10 -3.4 9.4 | 148 36 -19.2 30.4 63 20 26460 300 2 1.7 -1.0 | 145 24 -14.1 20.0 64 20 26518 60 12 -10.4 -6.0 | 120 30 -26.2 15.0 65 19 26822 0 0 -0.0 -0.0 | 143 26 -15.8 21.0 66 17 27432 360 4 -0.0 -4.0 | 137 23 -15.8 17.0 67 16 27737 55 13 -10.6 -7.5 | 117 30 -26.5 13.5 68 16 28042 85 13 -13.0 -1.1 | 125 35 -28.8 19.8 69 15 28346 60 14 -12.1 -7.0 | 117 31 -27.9 14.0 70 14 28651 90 19 -19.0 0.0 | 121 41 -34.8 21.0 71 14 28956 95 12 -12.0 1.0 | 128 35 -27.8 22.0 72 13 29261 60 16 -13.9 -8.0 | 114 32 -29.7 13.0 73 12 29870 110 17 -16.0 5.8 | 130 42 -31.8 26.8 74 10 31000 140 12 -7.7 9.2 | 142 38 -23.5 30.2 Wind Parameters Mean winds (0-6000m): 293.0 at 35.0 knts Storm direction: 323.0 at 26.3 knts Shear (0-3000m) pos: 6.4 neg: 0.6 tot: 7.0 10-3/s Storm rel Dir Shear (0-3000m): 96.8 deg Storm rel helicity (0-3000m) pos: 261.2 neg: -39.3 tot: 221.9 m^2/s^2 ave: 74.0 10^-3 m/s^2 rel: 0.63 Storm rel vorticity (0-3000m) horiz: 10.2 stream: 6.4 10^-3/s Energy-Hel index: 0.09 Bulk Rich Number: 1.21 Bulk Shear: 53.66 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 ------------------------------------------------------------------------------- 500 266 19 187 22| 26.9 0.0 26.9|177.7 0.0 177.7 355.4 0.92| 31.1 28.7 1000 280 24 206 19| 13.8 0.0 13.8|185.8 -5.2 180.6 180.6 0.81| 18.1 14.7 1500 284 27 214 18| 10.3 0.0 10.3|200.1 -5.2 194.9 130.0 0.80| 13.5 10.9 2000 286 28 221 18| 7.7 0.7 8.4|211.0 -5.2 205.8 102.9 0.80| 10.9 8.7 2500 287 31 228 18| 7.6 0.6 8.2|249.2 -5.2 244.0 97.6 0.81| 10.3 8.4 3000 289 33 236 18| 6.4 0.6 7.0|261.2 -39.3 221.9 74.0 0.63| 10.2 6.4 4000 289 34 238 19| 5.1 0.9 6.0|281.8 -80.1 201.7 50.4 0.49| 9.1 4.4 5000 291 34 242 18| 4.4 0.7 5.1|310.2 -80.1 230.1 46.0 0.50| 8.4 4.2 6000 293 35 246 18| 3.7 1.1 4.7|318.0-113.5 204.5 34.1 0.39| 7.9 3.1 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250427.12.gif