UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042900.upa.cvt Date: 0000Z 29 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:0000Z 29 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 62 SFC 971 306 7.4 -0.6 57 8.0 3.8 215 10 282.9 283.6 278.4 293.5 3.76 2 963 374 7.8 -2.2 49 10.0 3.5 218 15 284.0 284.6 278.4 293.6 3.37 3 925 704 5.2 -1.8 61 7.0 2.1 235 34 284.6 285.3 279.0 294.9 3.62 4 850 1388 -0.3 -1.2 94 0.9 -0.7 240 41 285.8 286.5 280.3 297.5 4.12 5 837 1511 -0.7 -0.7 100 0.0 -0.7 249 45 286.7 287.4 280.9 299.0 4.34 6 812 1754 -0.3 -0.3 100 0.0 -0.3 257 44 289.6 290.4 282.5 302.8 4.61 7 731 2592 -2.5 -2.5 100 0.0 -2.5 252 41 296.0 296.8 284.9 308.9 4.35 8 700 2935 -4.3 -4.3 100 0.0 -4.3 255 45 297.7 298.4 285.2 309.6 3.97 9 603 4095 -10.9 -11.5 95 0.6 -11.1 260 52 303.1 303.6 285.8 311.3 2.63 10 596 4184 -12.3 -16.3 72 4.0 -13.5 263 53 302.5 302.8 284.6 308.1 1.79 11 580 4391 -13.3 -17.1 73 3.8 -14.4 266 54 303.7 304.0 285.0 309.1 1.72 12 562 4631 -14.1 -24.1 42 10.0 -16.4 268 53 305.5 305.6 284.8 308.7 0.97 13 541 4919 -15.7 -23.7 50 8.0 -17.6 270 52 306.9 307.1 285.4 310.3 1.04 14 533 5031 -15.9 -31.9 24 16.0 -18.8 271 53 308.0 308.1 285.2 309.7 0.50 15 518 5246 -16.9 -39.9 12 23.0 -20.2 273 54 309.3 309.3 285.4 310.1 0.23 16 517 5260 -17.1 -40.1 12 23.0 -20.4 273 54 309.2 309.3 285.3 310.0 0.23 17 500 5510 -18.9 -31.9 31 13.0 -21.2 275 55 310.0 310.1 285.9 311.8 0.53 18 400 7130 -32.1 -33.6 86 1.5 -32.3 280 71 313.3 313.4 287.2 315.2 0.56 19 392 7272 -33.5 -34.4 92 0.9 -33.6 281 73 313.3 313.4 287.1 315.1 0.53 20 387 7363 -34.1 -35.5 87 1.4 -34.3 282 74 313.6 313.7 287.2 315.3 0.48 21 384 7417 -34.1 -41.1 49 7.0 -34.7 283 74 314.3 314.4 287.2 315.3 0.27 22 382 7454 -34.3 -43.3 40 9.0 -35.0 283 75 314.5 314.6 287.2 315.3 0.22 23 373 7620 -34.9 -39.6 62 4.7 -35.4 285 77 315.9 315.9 287.8 317.1 0.33 24 371 7658 -34.9 -39.9 60 5.0 -35.4 285 77 316.4 316.4 287.9 317.5 0.32 25 369 7696 -35.1 -45.1 35 10.0 -35.9 285 77 316.6 316.6 287.8 317.3 0.19 26 368 7715 -34.9 -48.9 23 14.0 -35.8 285 77 317.1 317.1 287.9 317.6 0.12 27 366 7753 -34.9 -51.9 16 17.0 -36.0 285 77 317.6 317.6 288.1 317.9 0.09 28 321 8654 -42.9 -50.9 41 8.0 -43.3 289 80 318.7 318.7 288.5 319.1 0.11 29 316 8760 -42.9 -55.9 23 13.0 -43.4 290 81 320.1 320.1 288.8 320.3 0.06 30 306 8977 -43.5 -50.5 46 7.0 -43.9 297 90 322.2 322.2 289.6 322.7 0.12 31 300 9110 -43.7 -48.7 58 5.0 -44.0 305 99 323.8 323.8 290.1 324.4 0.15 32 299 9132 -43.7 -48.5 59 4.8 -44.0 302 95 324.1 324.1 290.2 324.7 0.16 33 288 9383 -45.7 -49.8 63 4.1 -45.9 299 99 324.7 324.7 290.3 325.3 0.14 34 257 10132 -51.9 -54.6 73 2.7 -52.0 296 117 326.3 326.3 290.7 326.7 0.09 35 250 10310 -53.5 -57.3 63 3.8 -53.6 295 122 326.5 326.5 290.8 326.8 0.07 36 243 10491 -54.5 -58.7 60 4.2 -54.6 295 125 327.7 327.7 291.1 327.9 0.06 37 242 10518 -54.6 -57.8 68 3.2 -54.7 295 126 327.9 327.9 291.2 328.1 0.06 38 240 10571 -54.9 -56.1 86 1.2 -54.9 295 126 328.3 328.3 291.3 328.6 0.08 39 237 10651 -55.5 -58.7 67 3.2 -55.6 295 125 328.5 328.5 291.3 328.8 0.06 40 230 10840 -56.9 -58.9 78 2.0 -56.9 297 122 329.2 329.2 291.6 329.5 0.06 41 219 11148 -58.5 -63.1 55 4.6 -58.6 302 116 331.4 331.4 292.2 331.6 0.04 42 201 11679 -63.1 -67.3 57 4.2 -63.1 310 105 332.4 332.4 292.4 332.5 0.02 43 200 11710 -62.9 -67.5 54 4.6 -63.0 310 103 333.2 333.2 292.6 333.2 0.02 44 189 12059 -61.9 -76.9 12 15.0 -62.0 302 83 340.2 340.2 294.4 340.2 0.01 45 184 12227 -59.1 -83.1 3 24.0 -59.3 299 62 347.4 347.4 296.0 347.4 0.00 46 175 12543 -57.1 -82.1 3 25.0 -57.3 294 52 355.7 355.7 297.8 355.7 0.00 47 150 13520 -56.5 -84.5 2 28.0 -56.8 290 44 372.7 372.7 301.1 372.7 0.00 48 100 16110 -54.5 -85.5 1 31.0 -55.1 290 31 422.4 422.4 308.0 422.4 0.00 49 91 16712 -55.5 -85.5 1 30.0 -56.1 288 30 432.0 432.0 309.0 432.0 0.00 50 78 17702 -52.1 -84.1 1 32.0 -53.0 301 20 458.5 458.5 311.7 458.5 0.00 51 70 18400 -53.3 -85.3 1 32.0 -54.2 275 16 470.4 470.4 312.7 470.4 0.00 52 51 20433 -54.5 -85.5 1 31.0 -55.6 290 17 512.1 512.1 315.8 512.2 0.01 53 50 20560 -53.9 -85.9 1 32.0 -55.1 290 20 516.5 516.5 316.1 516.5 0.00 54 30 23860 -51.9 -85.9 1 34.0 -54.1 85 5 603.2 603.2 320.7 603.2 0.01 55 20 26490 -50.3 -85.3 1 35.0 -53.7 100 13 682.2 682.2 323.9 682.3 0.01 56 19 26826 -50.5 -85.5 1 35.0 -53.9 96 14 691.7 691.7 324.1 691.8 0.01 57 12 29863 -45.7 -84.7 0 39.0 -52.4 110 10 805.8 805.8 327.4 806.0 0.03 58 11 30443 -46.5 -84.5 1 38.0 -53.1 168 8 823.2 823.2 327.8 823.5 0.03 59 10 31080 -43.9 -83.9 0 40.0 -52.2 220 3 855.7 855.7 328.5 856.0 0.03 60 8.6 32091 -44.9 -83.9 0 39.0 -53.3 889.5 889.5 329.2 889.9 0.04 61 6.4 34083 -40.9 -81.9 0 41.0 -52.8 984.9 984.9 330.9 985.7 0.08 62 4.9 35937 -31.5 -75.5 0 44.0 -51.0 1106.1 1106.3 332.8 1109.8 0.28 TRP 201 11679 -63.1 -67.3 57 4.2 -63.1 310 105 332.4 332.4 292.4 332.5 0.02 WND 242 10518 -54.6 -57.8 68 3.2 -54.7 295 126 327.9 327.9 291.2 328.1 0.06 Sounding variables and indices 1000-500 mb thick: 5448.00 m Freezing level: 854.09 mb = 1350.69 m = 4431.35 ft Wetbulb zero: 868.22 mb = 1216.41 m = 3990.80 ft Precipitable water: 0.65 inches Sfc-500 mean rel hum: 77.49 % Est. max temperature: 12.96 C = 55.33 F Sfc-Lift cond lev (LCL): 858.88 mb = 1303.95 m = 4278.00 ft T: 0.38 C 700-500 lapse rate: 5.67 C/km Conv cond level (CCL): 676.32 mb = 3202.56 m = 10506.96 ft Mean mixing ratio: 3.67 g/kg Conv temperature: 23.31 C = 73.96 F Cap Strength: 13.37 C Lifted Index: 13.57 C Risk: None Lifted Index @300 mb: 20.38 C Lifted Index @700 mb: 8.04 C Showalter Index: 11.78 C Risk: None Total Totals Index: 36.30 C Risk: None Vertical Totals Index: 18.60 C Cross Totals Index: 17.70 C K Index: 17.40 Risk: < 20 % chance of thunderstorms Sweat Index: 233.70 Risk: None Energy Index: 3.00 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.83 J/kg Max Up Vert Vel: 3.70 m/s Conv Inhibition (B-): 68246.68 J/kg Cap Strength: 13.51 C Lift Cond Lev (LCL): 831.91 mb = 1560.14 m = 5118.50 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 291 at 35 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 ---------------------------------------------------------- 0 971 306 215 10 5.7 8.2 | 128 34 -26.8 20.8 1 936 610 230 31 23.7 19.9 | 165 34 -8.8 32.5 2 925 704 235 34 27.9 19.5 | 172 32 -4.7 32.1 3 901 914 240 37 32.0 18.5 | 179 31 -0.5 31.1 4 868 1219 235 43 35.2 24.7 | 184 37 2.6 37.3 5 850 1388 240 41 35.5 20.5 | 185 33 2.9 33.1 6 836 1524 250 45 42.3 15.4 | 199 30 9.7 28.0 7 804 1829 260 43 42.3 7.5 | 206 22 9.8 20.1 8 774 2134 270 37 37.0 -0.0 | 199 13 4.4 12.6 9 745 2438 250 36 33.8 12.3 | 183 25 1.3 24.9 10 717 2743 255 46 44.4 11.9 | 206 27 11.9 24.5 11 700 2935 255 45 43.5 11.6 | 204 27 10.9 24.3 12 637 3658 250 49 46.0 16.8 | 205 32 13.5 29.4 13 588 4267 265 54 53.8 4.7 | 231 27 21.2 17.3 14 543 4877 270 52 52.0 -0.0 | 237 23 19.4 12.6 15 500 5510 275 55 54.8 -4.8 | 251 24 22.2 7.8 16 461 6096 285 60 58.0 -15.5 | 277 26 25.4 -2.9 17 400 7130 280 71 69.9 -12.3 | 270 37 37.3 0.3 18 373 7620 285 77 74.4 -19.9 | 280 42 41.8 -7.3 19 312 8839 290 81 76.1 -27.7 | 289 46 43.5 -15.1 20 300 9110 305 99 81.1 -56.8 | 312 66 48.5 -44.2 21 298 9144 300 93 80.5 -46.5 | 305 59 48.0 -33.9 22 250 10310 295 122 110.6 -51.6 | 297 87 78.0 -39.0 23 242 10518 295 126 114.2 -53.2 | 296 91 81.6 -40.6 24 236 10668 295 125 113.3 -52.8 | 296 90 80.7 -40.2 25 201 11679 310 105 80.4 -67.5 | 319 73 47.9 -54.9 26 200 11710 310 103 78.9 -66.2 | 319 71 46.3 -53.6 27 194 11887 305 111 90.9 -63.7 | 311 78 58.3 -51.1 28 185 12192 300 63 54.6 -31.5 | 311 29 22.0 -18.9 29 168 12802 290 45 42.3 -15.4 | 286 10 9.7 -2.8 30 153 13411 280 47 46.3 -8.2 | 252 14 13.7 4.4 31 150 13520 290 44 41.3 -15.0 | 286 9 8.8 -2.4 32 132 14326 280 41 40.4 -7.1 | 235 10 7.8 5.5 33 120 14935 300 32 27.7 -16.0 | 55 6 -4.9 -3.4 34 115 15240 290 32 30.1 -10.9 | 124 3 -2.5 1.7 35 100 16110 290 31 29.1 -10.6 | 120 4 -3.4 2.0 36 95 16459 290 31 29.1 -10.6 | 120 4 -3.4 2.0 37 86 17069 285 29 28.0 -7.5 | 138 7 -4.6 5.1 38 78 17678 305 20 16.4 -11.5 | 94 16 -16.2 1.1 39 75 17983 255 15 14.5 3.9 | 132 24 -18.1 16.5 40 70 18400 275 16 15.9 -1.4 | 124 20 -16.6 11.2 41 68 18593 255 17 16.4 4.4 | 136 23 -16.2 17.0 42 65 18898 285 16 15.5 -4.1 | 116 19 -17.1 8.5 43 62 19202 275 16 15.9 -1.4 | 124 20 -16.6 11.2 44 59 19507 265 14 13.9 1.2 | 127 23 -18.6 13.8 45 54 20117 260 18 17.7 3.1 | 137 22 -14.9 15.7 46 51 20422 290 17 16.0 -5.8 | 112 18 -16.6 6.8 47 50 20560 290 20 18.8 -6.8 | 113 15 -13.8 5.8 48 49 20726 280 17 16.7 -3.0 | 121 19 -15.8 9.7 49 46 21031 295 21 19.0 -8.9 | 105 14 -13.5 3.7 50 44 21336 320 11 7.1 -8.4 | 99 26 -25.5 4.2 51 38 22250 310 1 0.8 -0.6 | 111 34 -31.8 12.0 52 37 22555 5 14 -1.2 -13.9 | 88 34 -33.8 -1.3 53 35 22860 30 10 -5.0 -8.7 | 96 38 -37.6 3.9 54 32 23470 200 1 0.3 0.9 | 113 35 -32.2 13.5 55 30 23860 85 5 -5.0 -0.4 | 108 39 -37.6 12.2 56 25 24994 80 10 -9.8 -1.7 | 104 44 -42.4 10.9 57 24 25298 100 10 -9.8 1.7 | 109 45 -42.4 14.3 58 20 26490 100 13 -12.8 2.3 | 108 48 -45.4 14.9 59 20 26518 80 10 -9.8 -1.7 | 104 44 -42.4 10.9 60 19 26822 95 14 -13.9 1.2 | 107 49 -46.5 13.8 61 18 27127 125 11 -9.0 6.3 | 114 46 -41.6 18.9 62 17 27432 130 2 -1.5 1.3 | 112 37 -34.1 13.9 63 17 27737 140 2 -1.3 1.5 | 113 37 -33.9 14.1 64 15 28346 50 10 -7.7 -6.4 | 99 41 -40.2 6.2 65 14 28651 80 15 -14.8 -2.6 | 102 48 -47.4 10.0 66 13 29566 45 12 -8.5 -8.5 | 96 41 -41.1 4.1 67 12 29870 110 10 -9.4 3.4 | 111 45 -42.0 16.0 68 11 30175 145 10 -5.7 8.2 | 118 44 -38.3 20.8 69 10 31080 220 3 1.9 2.3 | 116 34 -30.7 14.9 Wind Parameters Mean winds (0-6000m): 261.2 at 46.6 knts Storm direction: 291.2 at 34.9 knts Shear (0-3000m) pos: 6.3 neg: 1.1 tot: 7.4 10-3/s Storm rel Dir Shear (0-3000m): 76.8 deg Storm rel helicity (0-3000m) pos: 442.2 neg: -34.3 tot: 407.9 m^2/s^2 ave: 136.0 10^-3 m/s^2 rel: 0.52 Storm rel vorticity (0-3000m) horiz: 15.3 stream: 8.0 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.07 Bulk Shear: 101.73 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 ------------------------------------------------------------------------------- 500 231 26 156 32| 27.2 0.0 27.2|242.7 0.0 242.7 485.4 0.99| 28.7 28.4 1000 235 33 169 32| 17.0 0.0 17.0|290.7 0.0 290.7 290.7 0.86| 19.8 17.0 1500 241 36 178 30| 12.6 0.0 12.6|376.8 0.0 376.8 251.2 0.79| 19.2 15.1 2000 247 37 183 27| 9.4 1.7 11.2|376.8 -20.6 356.2 178.1 0.55| 18.4 10.1 2500 248 38 185 27| 7.5 0.9 8.4|441.1 -31.0 410.1 164.0 0.54| 17.7 9.6 3000 250 39 189 27| 6.3 1.1 7.4|442.2 -34.3 407.9 136.0 0.52| 15.3 8.0 4000 252 42 196 27| 6.0 0.9 6.8|549.2 -34.3 514.8 128.7 0.57| 13.7 7.7 5000 256 44 204 26| 5.0 0.7 5.7|589.2 -34.3 554.8 111.0 0.58| 11.8 6.8 6000 261 47 214 24| 5.1 0.6 5.7|670.9 -39.3 631.7 105.3 0.60| 11.2 6.7 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250429.00.gif