UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041712.upa.cvt Date: 1200Z 17 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:1200Z 17 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 82 SFC 972 306 -7.5 -9.0 89 1.5 -7.9 295 8 267.8 268.1 266.8 273.2 1.99 2 925 686 -11.3 -11.3 100 0.0 -11.3 305 19 267.8 268.0 266.4 272.5 1.74 3 885 1024 -13.5 -13.5 100 0.0 -13.5 321 25 268.9 269.1 266.7 273.1 1.52 4 879 1076 -12.7 -12.7 100 0.0 -12.7 326 27 270.2 270.5 267.8 274.8 1.64 5 873 1128 -9.7 -9.7 100 0.0 -9.7 331 30 273.9 274.2 270.9 279.7 2.09 6 868 1173 -9.7 -9.7 100 0.0 -9.7 335 32 274.3 274.7 271.2 280.2 2.11 7 850 1334 -10.9 -10.9 100 0.0 -10.9 340 33 274.7 275.1 271.2 280.2 1.95 8 812 1684 -13.3 -13.4 99 0.1 -13.3 344 34 275.8 276.1 271.5 280.5 1.67 9 807 1731 -10.1 -11.3 91 1.2 -10.5 344 35 279.7 280.0 274.2 285.4 1.99 10 793 1866 -9.1 -12.2 78 3.1 -10.0 345 35 282.2 282.5 275.4 287.6 1.89 11 769 2104 -9.9 -14.4 70 4.5 -11.1 345 35 283.8 284.1 275.9 288.6 1.63 12 719 2619 -13.3 -16.4 77 3.1 -14.1 337 36 285.6 285.8 276.6 290.0 1.47 13 707 2747 -13.7 -22.7 47 9.0 -15.6 335 36 286.5 286.6 276.2 289.2 0.87 14 700 2823 -13.9 -21.9 51 8.0 -15.6 340 38 287.1 287.3 276.6 290.0 0.95 15 687 2965 -14.7 -20.7 60 6.0 -16.0 343 40 287.7 287.9 277.2 291.0 1.07 16 682 3020 -14.9 -24.9 42 10.0 -16.9 344 41 288.1 288.3 276.9 290.4 0.74 17 666 3200 -16.1 -20.3 70 4.2 -17.0 346 40 288.7 288.9 277.7 292.2 1.14 18 652 3359 -16.9 -23.9 55 7.0 -18.3 347 39 289.6 289.7 277.7 292.2 0.85 19 606 3905 -20.3 -22.6 82 2.3 -20.8 348 34 291.8 292.0 279.1 295.0 1.03 20 583 4191 -20.9 -27.9 53 7.0 -22.1 346 31 294.3 294.5 279.7 296.5 0.66 21 554 4566 -23.1 -30.1 53 7.0 -24.2 350 30 296.1 296.2 280.4 297.9 0.57 22 546 4673 -23.9 -31.9 48 8.0 -25.0 351 31 296.3 296.4 280.4 297.9 0.48 23 543 4713 -23.9 -32.9 43 9.0 -25.1 352 31 296.8 296.9 280.6 298.3 0.44 24 511 5154 -27.1 -33.1 57 6.0 -27.9 352 27 298.1 298.2 281.2 299.7 0.46 25 500 5310 -28.3 -34.3 56 6.0 -29.0 350 24 298.5 298.6 281.3 299.9 0.42 26 437 6265 -33.7 -50.7 16 17.0 -34.7 343 14 303.4 303.4 282.9 303.7 0.08 27 411 6693 -36.9 -53.9 16 17.0 -37.7 351 13 304.7 304.7 283.4 304.9 0.06 28 400 6880 -38.3 -53.3 19 15.0 -39.0 355 13 305.2 305.2 283.6 305.5 0.07 29 386 7123 -39.5 -57.5 13 18.0 -40.2 15 11 306.8 306.8 284.1 306.9 0.04 30 352 7746 -43.7 -56.7 22 13.0 -44.1 89 5 309.3 309.3 285.1 309.5 0.05 31 348 7823 -43.5 -55.5 25 12.0 -43.9 92 5 310.6 310.6 285.6 310.8 0.06 32 325 8277 -47.5 -52.5 56 5.0 -47.7 110 7 311.2 311.2 285.9 311.5 0.09 33 320 8379 -48.3 -50.8 75 2.5 -48.4 114 7 311.5 311.5 286.0 311.9 0.11 34 309 8608 -49.7 -54.7 56 5.0 -49.8 122 7 312.6 312.7 286.4 312.9 0.07 35 301 8778 -51.1 -54.8 65 3.7 -51.2 129 8 313.0 313.0 286.5 313.3 0.07 36 300 8800 -51.3 -55.1 64 3.8 -51.4 130 8 313.0 313.1 286.5 313.3 0.07 37 297 8866 -51.7 -58.7 43 7.0 -51.8 117 10 313.4 313.4 286.6 313.6 0.05 38 284 9155 -54.3 -58.2 62 3.9 -54.4 134 9 313.7 313.7 286.7 313.9 0.05 39 270 9479 -56.7 -60.9 59 4.2 -56.8 102 7 314.8 314.8 287.1 314.9 0.04 40 265 9598 -57.1 -62.1 53 5.0 -57.2 90 6 315.9 315.9 287.4 316.0 0.03 41 260 9719 -57.1 -66.1 31 9.0 -57.2 74 4 317.6 317.6 288.0 317.7 0.02 42 255 9843 -55.9 -74.9 8 19.0 -56.1 28 6 321.1 321.1 289.1 321.2 0.01 43 250 9970 -53.5 -75.5 5 22.0 -53.8 330 9 326.5 326.5 290.7 326.5 0.01 44 249 9996 -53.3 -75.3 5 22.0 -53.6 330 9 327.2 327.2 290.9 327.2 0.01 45 246 10074 -52.7 -74.7 5 22.0 -53.0 330 10 329.2 329.2 291.5 329.3 0.01 46 210 11093 -52.1 -75.1 5 23.0 -52.5 9 13 345.4 345.4 295.6 345.4 0.01 47 201 11378 -50.1 -74.1 4 24.0 -50.5 5 12 352.9 352.9 297.3 353.0 0.01 48 200 11410 -50.3 -74.3 4 24.0 -50.8 5 12 353.1 353.1 297.3 353.2 0.01 49 183 11987 -51.9 -75.9 4 24.0 -52.3 350 11 359.6 359.6 298.6 359.6 0.01 50 167 12582 -49.7 -74.7 4 25.0 -50.3 328 10 372.8 372.8 301.1 372.8 0.01 51 158 12942 -51.7 -76.7 3 25.0 -52.2 298 9 375.4 375.4 301.5 375.4 0.01 52 153 13151 -50.5 -74.5 4 24.0 -51.1 281 9 380.9 380.9 302.4 380.9 0.01 53 150 13280 -51.5 -75.5 4 24.0 -52.0 270 9 381.3 381.3 302.5 381.4 0.01 54 142 13637 -51.7 -76.7 3 25.0 -52.2 281 10 387.0 387.0 303.3 387.0 0.01 55 126 14421 -47.9 -75.9 3 28.0 -48.8 269 7 407.3 407.3 306.2 407.4 0.01 56 111 15255 -50.1 -78.1 2 28.0 -50.9 247 3 418.3 418.3 307.5 418.3 0.01 57 107 15496 -48.7 -77.7 2 29.0 -49.7 206 4 425.3 425.3 308.3 425.4 0.01 58 103 15746 -50.1 -77.1 3 27.0 -51.0 163 4 427.3 427.3 308.6 427.4 0.01 59 100 15940 -49.1 -78.1 2 29.0 -50.1 130 5 432.9 432.9 309.1 432.9 0.01 60 96 16209 -48.1 -78.1 2 30.0 -49.3 138 6 439.9 439.9 309.8 439.9 0.01 61 87 16855 -50.1 -78.1 2 28.0 -51.1 189 15 448.4 448.4 310.7 448.5 0.01 62 70 18290 -45.5 -77.5 2 32.0 -47.4 120 11 487.0 487.0 314.0 487.1 0.01 63 67 18581 -45.1 -79.1 1 34.0 -47.2 120 11 494.1 494.1 314.5 494.1 0.01 64 60 19307 -50.7 -82.7 1 32.0 -52.1 167 10 497.4 497.4 314.8 497.4 0.01 65 58 19529 -48.5 -81.5 1 33.0 -50.3 184 10 507.2 507.2 315.5 507.2 0.01 66 50 20500 -49.9 -82.9 1 33.0 -51.6 80 10 525.9 525.9 316.6 525.9 0.01 67 30 23820 -51.7 -85.7 1 34.0 -53.9 110 18 603.7 603.7 320.7 603.8 0.01 68 25 25001 -53.1 -86.1 1 33.0 -55.4 115 2 632.0 632.0 322.0 632.1 0.01 69 20 26450 -50.3 -85.3 1 35.0 -53.7 120 12 682.2 682.2 323.9 682.3 0.01 70 14 28788 -48.5 -85.5 1 37.0 -53.5 101 12 761.6 761.6 326.3 761.7 0.02 TRP 265 9598 -57.1 -62.1 53 5.0 -57.2 90 6 315.9 315.9 287.4 316.0 0.03 WND Sounding variables and indices 1000-500 mb thick: 5228.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.26 inches Sfc-500 mean rel hum: 72.41 % Est. max temperature: 0.13 C = 32.24 F Sfc-Lift cond lev (LCL): 948.91 mb = 490.33 m = 1608.67 ft T: -9.34 C 700-500 lapse rate: 5.79 C/km ThetaE index: 0.78 C Layer 707.0- 700.0 mb Conv cond level (CCL): 926.19 mb = 676.12 m = 2218.21 ft Mean mixing ratio: 1.75 g/kg Conv temperature: -7.56 C = 18.39 F Cap Strength: 20.81 C Lifted Index: 20.96 C Risk: None Lifted Index @300 mb: 28.19 C Lifted Index @700 mb: 13.97 C Showalter Index: 15.45 C Risk: None Total Totals Index: 34.80 C Risk: None Vertical Totals Index: 17.40 C Cross Totals Index: 17.40 C K Index: -1.50 Risk: None Sweat Index: 90.00 Risk: None Energy Index: 4.18 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 13.46 J/kg Max Up Vert Vel: 5.19 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 20.86 C Lift Cond Lev (LCL): 916.07 mb = 760.10 m = 2493.73 ft Lev Free Conv (LFC): 911.07 mb = 801.92 m = 2630.94 ft Equ Level (EL): 881.07 mb = 1057.69 m = 3470.08 ft B at Equ Level: 9.15 J/kg Max Parcel Lev (MPL): 871.07 mb = 1145.28 m = 3757.45 ft Wind level data Storm motion: 13 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 ---------------------------------------------------------- 0 972 306 295 8 7.3 -3.4 | 214 22 12.1 17.8 1 934 610 305 21 17.2 -12.0 | 248 24 22.1 9.2 2 925 686 305 19 15.6 -10.9 | 243 23 20.5 10.3 3 898 914 310 20 15.3 -12.9 | 248 22 20.2 8.3 4 863 1219 340 34 11.6 -31.9 | 303 20 16.5 -10.8 5 850 1334 340 33 11.3 -31.0 | 301 19 16.2 -9.8 6 797 1829 345 35 9.1 -33.8 | 312 19 14.0 -12.6 7 766 2134 345 35 9.1 -33.8 | 312 19 14.0 -12.6 8 736 2438 340 36 12.3 -33.8 | 306 21 17.2 -12.6 9 707 2743 335 36 15.2 -32.6 | 300 23 20.1 -11.4 10 700 2823 340 38 13.0 -35.7 | 309 23 17.9 -14.5 11 679 3048 345 41 10.6 -39.6 | 320 24 15.5 -18.4 12 625 3658 350 36 6.3 -35.5 | 322 18 11.1 -14.3 13 576 4267 345 30 7.8 -29.0 | 302 15 12.7 -7.8 14 530 4877 355 31 2.7 -30.9 | 322 12 7.6 -9.7 15 500 5310 350 24 4.2 -23.6 | 285 9 9.1 -2.4 16 488 5486 350 24 4.2 -23.6 | 285 9 9.1 -2.4 17 467 5791 355 13 1.1 -13.0 | 216 10 6.0 8.2 18 447 6096 340 14 4.8 -13.2 | 230 13 9.7 8.0 19 400 6880 355 13 1.1 -13.0 | 216 10 6.0 8.2 20 392 7010 360 12 -0.0 -12.0 | 208 10 4.9 9.2 21 358 7620 85 5 -5.0 -0.4 | 180 21 -0.1 20.8 22 300 8800 130 8 -6.1 5.1 | 177 26 -1.2 26.3 23 298 8839 115 10 -9.1 4.2 | 171 26 -4.2 25.4 24 284 9144 135 9 -6.4 6.4 | 177 28 -1.5 27.6 25 265 9598 90 6 -6.0 0.0 | 177 21 -1.1 21.2 26 259 9754 70 4 -3.8 -1.4 | 183 20 1.1 19.8 27 250 9970 330 9 4.5 -7.8 | 215 16 9.4 13.4 28 247 10058 330 10 5.0 -8.7 | 218 16 9.9 12.5 29 224 10668 340 13 4.4 -12.2 | 226 13 9.3 9.0 30 214 10973 10 13 -2.3 -12.8 | 197 9 2.6 8.4 31 200 11410 5 12 -1.0 -12.0 | 203 10 3.9 9.2 32 195 11582 5 16 -1.4 -15.9 | 214 6 3.5 5.3 33 186 11887 345 11 2.8 -10.6 | 216 13 7.7 10.6 34 177 12192 360 10 -0.0 -10.0 | 204 12 4.9 11.2 35 150 13280 270 9 9.0 -0.0 | 213 25 13.9 21.2 36 147 13411 270 10 10.0 -0.0 | 215 26 14.9 21.2 37 140 13716 285 10 9.7 -2.6 | 218 24 14.6 18.6 38 111 15240 250 3 2.8 1.0 | 199 24 7.7 22.2 39 100 15940 130 5 -3.8 3.2 | 183 24 1.1 24.4 40 97 16154 130 5 -3.8 3.2 | 183 24 1.1 24.4 41 92 16459 175 11 -1.0 11.0 | 187 32 3.9 32.2 42 88 16764 180 17 0.0 17.0 | 187 39 4.9 38.2 43 84 17069 210 10 5.0 8.7 | 198 31 9.9 29.9 44 80 17374 100 10 -9.8 1.7 | 168 23 -5.0 22.9 45 77 17678 100 11 -10.8 1.9 | 166 24 -5.9 23.1 46 73 17983 130 1 -0.8 0.6 | 191 22 4.1 21.8 47 70 18288 150 11 -5.5 9.5 | 179 31 -0.6 30.7 48 70 18290 120 11 -9.5 5.5 | 170 27 -4.6 26.7 49 67 18593 120 11 -9.5 5.5 | 170 27 -4.6 26.7 50 58 19507 180 10 0.0 10.0 | 189 32 4.9 31.2 51 56 19812 255 11 10.6 2.8 | 213 29 15.5 24.0 52 50 20500 80 10 -9.8 -1.7 | 166 20 -5.0 19.5 53 48 20726 60 10 -8.7 -5.0 | 167 17 -3.8 16.2 54 44 21336 115 15 -13.6 6.3 | 162 29 -8.7 27.5 55 40 21946 85 11 -11.0 -1.0 | 163 21 -6.1 20.2 56 38 22250 90 21 -21.0 0.0 | 143 27 -16.1 21.2 57 36 22555 125 13 -10.6 7.5 | 169 29 -5.8 28.7 58 35 22860 105 15 -14.5 3.9 | 159 27 -9.6 25.1 59 33 23165 130 12 -9.2 7.7 | 172 29 -4.3 28.9 60 30 23774 125 17 -13.9 9.8 | 164 32 -9.0 30.9 61 30 23820 110 18 -16.9 6.2 | 156 30 -12.0 27.4 62 29 24079 105 18 -17.4 4.7 | 154 29 -12.5 25.9 63 28 24384 130 18 -13.8 11.6 | 165 34 -8.9 32.8 64 26 24689 175 10 -0.9 10.0 | 187 31 4.0 31.2 65 25 24994 115 2 -1.8 0.8 | 188 22 3.1 22.0 66 24 25298 100 13 -12.8 2.3 | 161 25 -7.9 23.5 67 23 25603 110 13 -12.2 4.4 | 164 27 -7.3 25.6 68 22 25908 105 19 -18.4 4.9 | 153 29 -13.5 26.1 69 21 26213 130 14 -10.7 9.0 | 169 31 -5.8 30.2 70 20 26450 120 12 -10.4 6.0 | 169 28 -5.5 27.2 71 20 26518 155 15 -6.3 13.6 | 178 35 -1.4 34.8 72 17 26822 120 10 -8.7 5.0 | 172 26 -3.8 26.2 73 16 27127 145 12 -6.9 9.8 | 176 31 -2.0 31.0 74 14 27432 100 12 -11.8 2.1 | 163 24 -6.9 23.3 75 12 27737 100 29 -28.6 5.0 | 138 35 -23.7 26.2 76 11 28042 140 24 -15.4 18.4 | 165 41 -10.5 39.6 77 10 28346 135 23 -16.3 16.3 | 163 39 -11.4 37.5 78 9 28651 150 18 -9.0 15.6 | 174 37 -4.1 36.8 79 8 28956 145 15 -8.6 12.3 | 174 34 -3.7 33.5 Wind Parameters Mean winds (0-6000m): 343.0 at 29.0 knts Storm direction: 13.0 at 21.8 knts Shear (0-3000m) pos: 5.7 neg: 0.8 tot: 6.5 10-3/s Storm rel Dir Shear (0-3000m): 106.6 deg Storm rel helicity (0-3000m) pos: 257.0 neg: -32.9 tot: 224.1 m^2/s^2 ave: 74.7 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 9.6 stream: 6.8 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.27 Bulk Shear: 49.10 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 ------------------------------------------------------------------------------- 500 304 16 237 22| 12.2 0.0 12.2| 80.5 -8.8 71.8 143.5 0.77| 16.2 12.5 1000 319 22 255 20| 14.5 0.0 14.5|188.7 -8.8 179.9 179.9 0.89| 18.8 16.6 1500 329 26 273 18| 10.4 0.0 10.4|204.9 -8.8 196.2 130.8 0.90| 13.6 12.2 2000 334 28 283 18| 7.8 0.4 8.3|205.8 -14.7 191.1 95.5 0.83| 10.7 8.9 2500 335 30 288 18| 6.2 0.9 7.2|221.9 -32.9 189.0 75.6 0.70| 10.0 7.0 3000 337 31 294 19| 5.7 0.8 6.5|257.0 -32.9 224.1 74.7 0.71| 9.6 6.8 4000 340 32 300 18| 3.8 0.8 4.6|258.7 -56.7 202.0 50.5 0.53| 8.5 4.5 5000 342 32 302 17| 3.3 1.2 4.5|273.2 -73.9 199.3 39.9 0.42| 8.0 3.3 6000 343 29 296 15| 2.0 1.1 3.1|280.9 -98.5 182.4 30.4 0.26| 8.0 2.1 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250417.12.gif