UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042100.upa.cvt Date: 0000Z 21 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:0000Z 21 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 221 SFC 989 306 -0.3 -7.3 59 7.0 -2.7 295 5 273.7 274.1 271.1 279.9 2.23 2 925 839 -5.3 -8.8 76 3.5 -6.4 315 13 273.9 274.2 271.0 279.8 2.12 3 850 1496 -11.3 -11.5 98 0.2 -11.3 340 15 274.3 274.6 270.8 279.5 1.86 4 846 1532 -11.5 -12.2 95 0.7 -11.7 349 15 274.5 274.8 270.8 279.4 1.77 5 836 1623 -10.7 -17.7 56 7.0 -12.3 335 14 276.2 276.4 270.9 279.5 1.14 6 824 1734 -10.7 -18.7 52 8.0 -12.5 319 13 277.4 277.6 271.4 280.5 1.06 7 807 1895 -8.9 -34.9 10 26.0 -12.9 308 14 281.0 281.0 272.2 281.7 0.24 8 786 2099 -8.1 -43.1 4 35.0 -12.7 318 22 283.9 284.0 273.6 284.3 0.11 9 776 2199 -7.9 -43.9 4 36.0 -12.6 321 24 285.2 285.2 274.3 285.5 0.10 10 751 2452 -9.1 -40.1 6 31.0 -13.5 325 27 286.6 286.6 275.2 287.1 0.15 11 734 2629 -10.1 -29.1 19 19.0 -13.6 325 27 287.4 287.5 276.1 288.9 0.47 12 714 2841 -11.1 -39.1 8 28.0 -15.0 323 27 288.6 288.6 276.2 289.2 0.18 13 709 2895 -11.5 -29.5 21 18.0 -14.7 322 27 288.7 288.8 276.7 290.2 0.47 14 700 2993 -12.3 -31.3 19 19.0 -15.5 320 27 288.9 288.9 276.7 290.2 0.40 15 695 3048 -12.7 -37.7 10 25.0 -16.2 315 29 289.0 289.1 276.5 289.7 0.21 16 682 3191 -13.5 -24.5 39 11.0 -15.7 322 28 289.7 289.8 277.7 292.1 0.77 17 631 3779 -15.5 -26.5 38 11.0 -17.6 318 29 293.9 294.0 279.6 296.1 0.69 18 626 3839 -15.1 -23.1 50 8.0 -16.9 317 29 295.0 295.2 280.5 298.1 0.95 19 614 3985 -15.3 -18.9 74 3.6 -16.2 315 28 296.4 296.7 281.7 300.8 1.40 20 572 4518 -16.1 -17.8 87 1.7 -16.6 315 39 301.6 301.9 284.1 306.8 1.65 21 500 5520 -21.1 -23.2 83 2.1 -21.5 320 58 307.3 307.5 285.8 311.2 1.18 22 489 5684 -22.1 -23.8 86 1.7 -22.5 320 60 308.0 308.3 285.9 311.8 1.14 23 469 5990 -23.5 -27.8 68 4.3 -24.3 320 62 310.0 310.2 286.3 312.8 0.83 24 410 6956 -31.5 -33.6 82 2.1 -31.8 316 67 311.8 311.9 286.6 313.7 0.55 25 400 7130 -33.1 -35.8 77 2.7 -33.4 315 68 312.0 312.1 286.6 313.6 0.45 26 351 8036 -39.5 -44.4 60 4.9 -39.8 320 79 315.2 315.3 287.4 316.0 0.21 27 314 8788 -45.9 -48.3 77 2.4 -46.0 320 85 316.5 316.5 287.8 317.1 0.15 28 300 9090 -47.7 -51.0 69 3.3 -47.9 320 87 318.1 318.1 288.3 318.6 0.12 29 253 10203 -54.7 -61.7 42 7.0 -54.8 320 94 323.6 323.6 289.9 323.8 0.04 30 250 10280 -55.5 -60.5 54 5.0 -55.6 320 95 323.6 323.6 289.9 323.7 0.04 31 249 10306 -55.7 -60.7 54 5.0 -55.8 320 95 323.6 323.6 289.9 323.8 0.04 32 245 10408 -56.3 -63.3 41 7.0 -56.4 320 95 324.2 324.2 290.1 324.4 0.03 33 233 10726 -58.5 -63.0 56 4.5 -58.6 321 96 325.6 325.6 290.5 325.7 0.03 34 227 10889 -59.3 -65.3 46 6.0 -59.4 325 97 326.7 326.7 290.8 326.8 0.03 35 219 11113 -60.5 -68.5 34 8.0 -60.6 325 93 328.3 328.3 291.3 328.4 0.02 36 213 11286 -60.1 -71.1 22 11.0 -60.2 322 84 331.6 331.6 292.2 331.6 0.01 37 200 11680 -59.3 -74.3 13 15.0 -59.5 315 65 338.9 338.9 294.0 338.9 0.01 38 198 11743 -59.3 -74.3 13 15.0 -59.5 315 63 339.8 339.8 294.3 339.9 0.01 39 189 12035 -57.1 -80.1 4 23.0 -57.3 315 55 347.9 347.9 296.2 347.9 0.00 40 180 12344 -55.5 -79.5 3 24.0 -55.8 313 50 355.4 355.4 297.8 355.4 0.00 41 172 12632 -56.9 -82.9 2 26.0 -57.2 310 48 357.8 357.8 298.2 357.8 0.00 42 160 13091 -55.5 -82.5 2 27.0 -55.8 305 45 367.6 367.6 300.1 367.6 0.00 43 154 13333 -56.9 -83.9 2 27.0 -57.2 305 42 369.3 369.3 300.4 369.3 0.00 44 150 13500 -56.5 -83.5 2 27.0 -56.8 305 40 372.7 372.7 301.1 372.7 0.00 45 130 14412 -54.7 -83.7 2 29.0 -55.1 305 32 391.5 391.5 304.0 391.5 0.00 46 120 14928 -52.1 -83.1 1 31.0 -52.7 300 28 405.4 405.4 305.9 405.4 0.00 47 105 15787 -54.9 -84.9 1 30.0 -55.4 301 29 415.8 415.8 307.2 415.8 0.00 48 100 16100 -53.3 -84.3 1 31.0 -53.9 300 21 424.7 424.7 308.3 424.8 0.00 49 93 16568 -51.7 -83.7 1 32.0 -52.5 301 21 436.8 436.8 309.6 436.8 0.00 50 86 17073 -53.7 -84.7 1 31.0 -54.4 308 20 442.7 442.7 310.1 442.7 0.00 51 70 18400 -51.7 -84.7 1 33.0 -52.8 325 18 473.8 473.8 313.0 473.8 0.00 52 62 19185 -49.9 -83.9 1 34.0 -51.3 8 11 494.5 494.5 314.5 494.5 0.01 53 50 20580 -51.3 -84.3 1 33.0 -52.8 225 1 522.6 522.6 316.5 522.6 0.01 54 30 23880 -54.1 -86.1 1 32.0 -55.8 70 14 597.2 597.2 320.5 597.2 0.01 55 28 24322 -54.7 -86.7 1 32.0 -56.4 70 12 607.4 607.4 320.9 607.4 0.01 56 26 24800 -51.5 -85.5 1 34.0 -54.0 61 8 629.5 629.5 321.9 629.6 0.01 57 23 25598 -50.5 -85.5 1 35.0 -53.5 60 12 654.9 654.9 322.9 655.0 0.01 58 20 26510 -50.1 -85.1 1 35.0 -53.5 60 10 682.8 682.8 323.9 682.9 0.01 59 14 28840 -50.3 -85.3 1 35.0 -54.6 57 17 755.5 755.5 326.1 755.6 0.02 60 10 31070 -43.5 -83.5 0 40.0 -52.0 105 8 857.2 857.2 328.5 857.5 0.04 61 7.9 32667 -40.1 -81.1 0 41.0 -51.5 930.5 930.6 330.0 931.3 0.07 62 6.6 33892 -41.3 -82.3 0 41.0 -52.9 974.6 974.6 330.8 975.3 0.07 63 4.9 35946 -33.9 -76.9 1 43.0 -51.7 1095.1 1095.3 332.6 1098.0 0.22 TRP 219 11113 -60.5 -68.5 34 8.0 -60.6 325 93 328.3 328.3 291.3 328.4 0.02 WND 227 10889 -59.3 -65.3 46 6.0 -59.4 325 97 326.7 326.7 290.8 326.8 0.03 Sounding variables and indices 1000-500 mb thick: 5299.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.28 inches Sfc-500 mean rel hum: 56.27 % Est. max temperature: 1.69 C = 35.04 F Sfc-Lift cond lev (LCL): 886.25 mb = 1171.52 m = 3843.53 ft T: -8.34 C 700-500 lapse rate: 3.48 C/km ThetaE index: 0.46 C Layer 700.0- 682.0 mb Conv cond level (CCL): 871.75 mb = 1299.66 m = 4263.92 ft Mean mixing ratio: 2.13 g/kg Conv temperature: 0.18 C = 32.33 F Cap Strength: 19.45 C Lifted Index: 22.97 C Risk: None Lifted Index @300 mb: 27.16 C Lifted Index @700 mb: 10.53 C Showalter Index: 23.18 C Risk: None Total Totals Index: 19.40 C Risk: None Vertical Totals Index: 9.80 C Cross Totals Index: 9.60 C K Index: -20.70 Risk: None Sweat Index: 88.00 Risk: None Energy Index: 6.63 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.53 J/kg Max Up Vert Vel: 1.75 m/s Conv Inhibition (B-): 3.21 J/kg Cap Strength: 22.67 C Lift Cond Lev (LCL): 875.87 mb = 1263.03 m = 4143.74 ft Lev Free Conv (LFC): 850.87 mb = 1488.03 m = 4881.92 ft Equ Level (EL): 840.87 mb = 1578.77 m = 5179.62 ft B at Equ Level: -0.93 J/kg Max Parcel Lev (MPL): 840.87 mb = 1578.77 m = 5179.62 ft Wind level data Storm motion: 349 at 24 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 ---------------------------------------------------------- 0 989 306 295 5 4.5 -2.1 | 180 22 0.0 21.5 1 952 610 290 11 10.3 -3.8 | 196 21 5.8 19.9 2 925 839 315 13 9.2 -9.2 | 198 15 4.7 14.4 3 916 914 320 13 8.4 -10.0 | 196 14 3.9 13.7 4 881 1219 330 15 7.5 -13.0 | 196 11 3.0 10.6 5 850 1496 340 15 5.1 -14.1 | 184 10 0.6 9.5 6 847 1524 350 15 2.6 -14.8 | 168 9 -1.9 8.9 7 814 1829 305 12 9.8 -6.9 | 198 18 5.3 16.7 8 783 2134 320 23 14.8 -17.6 | 240 12 10.3 6.0 9 752 2438 325 27 15.5 -22.1 | 262 11 11.0 1.5 10 723 2743 325 27 15.5 -22.1 | 262 11 11.0 1.5 11 700 2993 320 27 17.4 -20.7 | 257 13 12.9 2.9 12 695 3048 315 29 20.5 -20.5 | 259 16 16.0 3.1 13 667 3353 330 26 13.0 -22.5 | 263 9 8.5 1.1 14 641 3658 320 30 19.3 -23.0 | 267 15 14.8 0.6 15 615 3962 315 28 19.8 -19.8 | 256 16 15.3 3.8 16 591 4267 315 35 24.7 -24.7 | 273 20 20.2 -1.1 17 545 4877 315 46 32.5 -32.5 | 288 29 28.0 -8.9 18 500 5520 320 58 37.3 -44.4 | 302 39 32.8 -20.8 19 482 5791 320 62 39.9 -47.5 | 304 43 35.4 -23.9 20 462 6096 320 62 39.9 -47.5 | 304 43 35.4 -23.9 21 400 7130 315 68 48.1 -48.1 | 299 50 43.6 -24.5 22 372 7620 320 76 48.9 -58.2 | 308 56 44.4 -34.6 23 300 9090 320 87 55.9 -66.6 | 310 67 51.4 -43.0 24 298 9144 320 86 55.3 -65.9 | 310 66 50.8 -42.2 25 250 10280 320 95 61.1 -72.8 | 311 75 56.6 -49.1 26 235 10668 320 96 61.7 -73.5 | 311 76 57.2 -49.9 27 227 10889 325 97 55.6 -79.5 | 318 76 51.1 -55.8 28 224 10973 325 97 55.6 -79.5 | 318 76 51.1 -55.8 29 219 11113 325 93 53.3 -76.2 | 317 72 48.8 -52.6 30 200 11680 315 65 46.0 -46.0 | 298 47 41.5 -22.3 31 184 12192 315 51 36.1 -36.1 | 291 34 31.6 -12.4 32 160 13106 305 45 36.9 -25.8 | 274 32 32.4 -2.2 33 150 13500 305 40 32.8 -22.9 | 269 28 28.3 0.7 34 126 14630 305 30 24.6 -17.2 | 252 21 20.1 6.4 35 114 15240 295 26 23.6 -11.0 | 236 23 19.1 12.6 36 109 15545 285 29 28.0 -7.5 | 236 29 23.5 16.1 37 104 15850 305 29 23.8 -16.6 | 250 20 19.3 7.0 38 100 16100 300 21 18.2 -10.5 | 226 19 13.7 13.1 39 95 16459 300 21 18.2 -10.5 | 226 19 13.7 13.1 40 78 17678 315 20 14.1 -14.1 | 225 14 9.6 9.5 41 75 17983 280 22 21.7 -3.8 | 221 26 17.2 19.8 42 70 18400 325 18 10.3 -14.7 | 213 11 5.8 8.9 43 68 18593 305 27 22.1 -15.5 | 245 19 17.6 8.1 44 65 18898 335 20 8.5 -18.1 | 216 7 4.0 5.5 45 62 19202 10 10 -1.7 -9.8 | 156 15 -6.2 13.8 46 59 19507 20 3 -1.0 -2.8 | 165 22 -5.5 20.8 47 50 20580 225 1 0.7 0.7 | 171 25 -3.8 24.3 48 49 20726 0 0 -0.0 -0.0 | 169 24 -4.5 23.6 49 44 21336 275 5 5.0 -0.4 | 181 23 0.5 23.2 50 35 22860 315 3 2.1 -2.1 | 174 22 -2.4 21.5 51 34 23165 65 13 -11.8 -5.5 | 138 24 -16.3 18.1 52 32 23470 50 10 -7.7 -6.4 | 145 21 -12.2 17.2 53 30 23774 115 18 -16.3 7.6 | 146 38 -20.8 31.2 54 30 23880 70 14 -13.2 -4.8 | 137 26 -17.7 18.8 55 29 24079 70 10 -9.4 -3.4 | 145 25 -13.9 20.2 56 28 24384 70 13 -12.2 -4.4 | 139 25 -16.7 19.2 57 26 24689 75 3 -2.9 -0.8 | 162 24 -7.4 22.9 58 25 24994 40 17 -10.9 -13.0 | 125 19 -15.4 10.6 59 24 25298 50 12 -9.2 -7.7 | 139 21 -13.7 15.9 60 23 25603 60 12 -10.4 -6.0 | 140 23 -14.9 17.6 61 22 25908 50 16 -12.3 -10.3 | 129 21 -16.8 13.3 62 21 26213 70 11 -10.3 -3.8 | 143 25 -14.8 19.9 63 20 26510 60 10 -8.7 -5.0 | 145 23 -13.2 18.6 64 20 26518 120 3 -2.6 1.5 | 164 26 -7.1 25.1 65 19 26822 65 12 -10.9 -5.1 | 140 24 -15.4 18.6 66 17 27432 35 14 -8.0 -11.5 | 134 17 -12.5 12.2 67 17 27737 75 14 -13.5 -3.6 | 138 27 -18.0 20.0 68 16 28042 35 10 -5.7 -8.2 | 146 19 -10.2 15.4 69 15 28346 35 17 -9.8 -13.9 | 124 17 -14.3 9.7 70 14 28651 60 17 -14.7 -8.5 | 128 24 -19.2 15.1 71 14 28956 55 17 -13.9 -9.8 | 127 23 -18.4 13.9 72 13 29261 80 15 -14.8 -2.6 | 137 29 -19.3 21.0 73 13 29566 35 12 -6.9 -9.8 | 140 18 -11.4 13.8 74 12 29870 60 12 -10.4 -6.0 | 140 23 -14.9 17.6 75 10 31070 105 8 -7.7 2.1 | 155 28 -12.2 25.7 Wind Parameters Mean winds (0-6000m): 319.2 at 32.1 knts Storm direction: 349.2 at 24.1 knts Shear (0-3000m) pos: 4.6 neg: 1.1 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 82.4 deg Storm rel helicity (0-3000m) pos: 105.5 neg: -13.6 tot: 91.9 m^2/s^2 ave: 30.6 10^-3 m/s^2 rel: 0.41 Storm rel vorticity (0-3000m) horiz: 9.2 stream: 3.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.02 Bulk Shear: 73.68 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 ------------------------------------------------------------------------------- 500 296 10 192 20| 8.3 0.0 8.3| 36.0 0.0 36.0 72.1 0.61| 11.0 6.8 1000 314 12 195 16| 5.9 0.0 5.9| 36.2 -4.4 31.7 31.7 0.32| 8.5 2.7 1500 321 13 194 14| 3.9 2.2 6.1| 48.6 -10.6 37.9 25.3 0.24| 9.6 2.4 2000 320 14 200 13| 6.5 1.7 8.1| 95.6 -10.6 85.0 42.5 0.47| 10.9 5.1 2500 322 17 210 12| 5.5 1.3 6.9|101.5 -11.4 90.1 36.0 0.48| 9.2 4.4 3000 321 19 218 12| 4.6 1.1 5.7|105.5 -13.6 91.9 30.6 0.41| 9.2 3.8 4000 321 21 232 12| 3.5 1.8 5.3|133.2 -23.5 109.7 27.4 0.37| 8.9 3.3 5000 319 26 253 13| 3.8 2.1 5.9|220.4 -23.5 196.9 39.4 0.42| 9.0 3.8 6000 319 32 272 16| 3.8 1.9 5.7|260.7 -31.9 228.8 38.1 0.41| 8.4 3.5 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250421.00.gif