UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041700.upa.cvt Date: 0000Z 17 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:0000Z 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 27 SFC 966 306 0.4 -3.0 78 3.4 -0.9 330 9 276.3 276.8 274.0 285.0 3.17 2 925 651 -3.1 -3.9 94 0.8 -3.4 330 18 276.1 276.7 273.8 284.7 3.09 3 886 991 -5.3 -5.3 100 0.0 -5.3 344 20 277.3 277.8 274.2 285.4 2.90 4 868 1152 -4.5 -5.4 93 0.9 -4.8 352 19 279.8 280.3 275.6 288.0 2.94 5 856 1262 -5.1 -7.3 85 2.2 -5.8 355 17 280.2 280.7 275.4 287.5 2.58 6 850 1317 -5.5 -7.4 86 1.9 -6.1 355 16 280.4 280.8 275.5 287.7 2.58 7 776 2024 -11.3 -11.5 98 0.2 -11.3 341 21 281.5 281.9 275.3 287.4 2.04 8 772 2064 -9.9 -17.9 52 8.0 -11.9 343 22 283.5 283.7 275.1 287.1 1.21 9 761 2174 -9.5 -26.5 24 17.0 -12.8 347 24 285.1 285.2 275.0 286.9 0.58 10 758 2205 -9.3 -25.3 26 16.0 -12.6 348 24 285.6 285.7 275.4 287.6 0.64 11 756 2225 -9.5 -23.5 31 14.0 -12.5 349 23 285.6 285.7 275.6 287.9 0.76 12 726 2537 -11.3 -16.3 66 5.0 -12.6 2 23 287.0 287.2 277.3 291.4 1.47 13 704 2773 -13.1 -17.8 68 4.7 -14.3 5 25 287.5 287.7 277.4 291.5 1.34 14 700 2816 -13.3 -18.1 67 4.8 -14.5 5 24 287.8 288.0 277.5 291.7 1.31 15 666 3194 -15.1 -26.1 39 11.0 -17.1 5 19 289.9 290.0 277.7 292.0 0.68 16 623 3694 -18.7 -23.4 66 4.7 -19.6 349 22 291.3 291.5 278.7 294.2 0.93 17 618 3754 -19.1 -29.1 41 10.0 -20.7 347 22 291.5 291.6 278.3 293.3 0.56 18 608 3876 -20.1 -34.1 28 14.0 -22.0 343 23 291.7 291.8 278.1 292.9 0.35 19 604 3924 -20.5 -32.5 33 12.0 -22.2 342 23 291.8 291.9 278.2 293.2 0.41 20 601 3961 -20.7 -24.1 74 3.4 -21.3 341 23 292.0 292.2 279.0 294.9 0.91 21 594 4048 -21.1 -24.2 76 3.1 -21.7 342 23 292.5 292.7 279.3 295.4 0.91 22 589 4110 -21.5 -32.5 36 11.0 -23.0 344 23 292.8 292.9 278.7 294.2 0.42 23 586 4148 -21.9 -28.9 53 7.0 -23.0 345 22 292.7 292.9 278.9 294.7 0.60 24 584 4173 -22.1 -34.1 33 12.0 -23.7 346 22 292.8 292.9 278.6 294.0 0.37 25 577 4261 -22.5 -34.5 33 12.0 -24.0 349 22 293.3 293.4 278.9 294.5 0.36 26 573 4313 -22.7 -26.5 71 3.8 -23.4 350 22 293.7 293.8 279.6 296.1 0.76 27 565 4415 -23.7 -26.9 75 3.2 -24.2 350 21 293.7 293.8 279.6 296.1 0.75 28 527 4921 -26.5 -34.5 47 8.0 -27.5 349 19 296.2 296.3 280.3 297.5 0.39 29 514 5101 -27.1 -33.1 57 6.0 -27.9 342 18 297.6 297.7 281.0 299.2 0.46 30 500 5300 -28.1 -34.1 56 6.0 -28.8 335 17 298.8 298.9 281.4 300.2 0.43 31 481 5578 -29.9 -35.9 56 6.0 -30.6 321 17 299.9 300.0 281.8 301.1 0.37 32 479 5607 -30.1 -39.1 41 9.0 -31.0 320 17 300.0 300.0 281.7 300.9 0.27 33 476 5652 -29.9 -46.9 18 17.0 -31.2 318 17 300.8 300.8 281.8 301.2 0.12 34 463 5849 -31.7 -44.7 27 13.0 -32.7 308 17 300.9 301.0 282.0 301.5 0.15 35 456 5957 -32.3 -51.3 13 19.0 -33.4 302 17 301.5 301.5 282.1 301.8 0.07 36 429 6386 -35.1 -56.1 10 21.0 -36.1 282 15 303.2 303.2 282.8 303.4 0.04 37 400 6870 -39.3 -48.3 38 9.0 -39.8 260 11 303.9 303.9 283.1 304.3 0.12 38 385 7130 -41.7 -48.7 47 7.0 -42.1 259 11 304.1 304.1 283.2 304.5 0.12 39 379 7237 -42.7 -50.7 41 8.0 -43.0 258 11 304.1 304.2 283.2 304.5 0.10 40 375 7308 -43.1 -60.1 14 17.0 -43.6 258 11 304.5 304.5 283.2 304.7 0.03 41 362 7545 -44.7 -54.7 32 10.0 -45.0 256 11 305.5 305.5 283.7 305.7 0.06 42 334 8078 -49.1 -58.1 34 9.0 -49.3 237 11 306.6 306.6 284.1 306.8 0.04 43 330 8157 -48.9 -62.9 18 14.0 -49.2 239 11 307.9 307.9 284.6 308.0 0.02 44 323 8298 -49.3 -64.3 16 15.0 -49.6 231 13 309.3 309.3 285.1 309.3 0.02 45 321 8339 -49.7 -64.7 16 15.0 -50.0 225 13 309.3 309.3 285.1 309.3 0.02 46 300 8780 -51.3 -67.3 13 16.0 -51.5 195 12 313.0 313.0 286.4 313.1 0.01 47 275 9343 -52.9 -74.9 5 22.0 -53.1 255 7 318.6 318.6 288.3 318.6 0.01 48 269 9485 -52.9 -76.9 4 24.0 -53.2 236 10 320.6 320.6 288.9 320.6 0.00 49 264 9607 -51.1 -78.1 3 27.0 -51.4 223 9 325.0 325.0 290.3 325.0 0.00 50 250 9960 -52.3 -79.3 2 27.0 -52.6 185 6 328.3 328.3 291.2 328.3 0.00 51 236 10331 -53.1 -80.1 2 27.0 -53.4 188 5 332.6 332.6 292.4 332.6 0.00 52 230 10497 -52.3 -81.3 2 29.0 -52.7 189 4 336.2 336.2 293.4 336.2 0.00 53 227 10582 -50.3 -80.3 2 30.0 -50.7 189 4 340.6 340.6 294.4 340.6 0.00 54 218 10846 -49.7 -80.7 1 31.0 -50.2 206 4 345.4 345.4 295.6 345.5 0.00 55 209 11122 -48.7 -81.7 1 33.0 -49.3 230 3 351.2 351.2 296.9 351.2 0.00 56 200 11410 -50.1 -82.1 1 32.0 -50.6 255 3 353.4 353.4 297.4 353.4 0.00 57 175 12277 -51.5 -83.5 1 32.0 -52.0 231 8 364.9 364.9 299.7 364.9 0.00 58 159 12900 -49.5 -83.5 1 34.0 -50.1 205 8 378.4 378.4 302.0 378.4 0.00 59 150 13280 -50.7 -83.7 1 33.0 -51.3 205 6 382.7 382.7 302.7 382.7 0.00 60 100 15940 -49.1 -84.1 1 35.0 -50.1 135 14 432.9 432.9 309.1 432.9 0.00 61 89 16708 -47.3 -84.3 1 37.0 -48.7 196 12 451.1 451.1 311.0 451.1 0.00 62 76 17749 -48.9 -84.9 1 36.0 -50.3 161 24 468.6 468.6 312.5 468.6 0.00 63 70 18290 -48.3 -85.3 1 37.0 -49.8 115 17 481.1 481.1 313.5 481.1 0.00 64 66 18680 -45.9 -84.9 0 39.0 -47.9 137 17 494.4 494.4 314.5 494.5 0.00 65 59 19420 -49.7 -86.7 1 37.0 -51.2 138 10 502.0 502.0 315.1 502.0 0.00 66 58 19533 -47.9 -85.9 0 38.0 -49.8 117 10 508.5 508.5 315.5 508.6 0.00 67 50 20510 -49.1 -86.1 1 37.0 -51.0 170 12 527.8 527.8 316.8 527.8 0.00 68 37 22472 -52.3 -87.3 1 35.0 -54.1 116 17 567.0 567.0 319.0 567.0 0.01 69 30 23830 -51.9 -87.9 1 36.0 -54.1 165 8 603.2 603.2 320.7 603.2 0.01 70 21 26135 -53.3 -88.3 1 35.0 -55.8 111 16 663.7 663.7 323.2 663.8 0.01 71 20 26450 -51.9 -88.9 0 37.0 -54.9 115 19 677.3 677.3 323.7 677.4 0.01 72 18 27136 -49.9 -87.9 0 38.0 -53.7 109 18 704.3 704.3 324.6 704.4 0.01 TRP 275 9343 -52.9 -74.9 5 22.0 -53.1 255 7 318.6 318.6 288.3 318.6 0.01 WND Sounding variables and indices 1000-500 mb thick: 5273.00 m Freezing level: 961.31 mb = 345.43 m = 1133.28 ft Wetbulb zero: Below ground Precipitable water: 0.31 inches Sfc-500 mean rel hum: 66.63 % Est. max temperature: 5.01 C = 41.01 F Sfc-Lift cond lev (LCL): 916.06 mb = 727.61 m = 2387.14 ft T: -3.60 C 700-500 lapse rate: 5.96 C/km ThetaE index: 0.82 C Layer 776.0- 758.0 mb Conv cond level (CCL): 899.25 mb = 873.64 m = 2866.23 ft Mean mixing ratio: 3.03 g/kg Conv temperature: 1.02 C = 33.83 F Cap Strength: 10.91 C Lifted Index: 11.67 C Risk: None Lifted Index @300 mb: 19.70 C Lifted Index @700 mb: 5.49 C Showalter Index: 9.85 C Risk: None Total Totals Index: 43.30 C Risk: None Vertical Totals Index: 22.60 C Cross Totals Index: 20.70 C K Index: 10.40 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 2.58 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 11.87 J/kg Max Up Vert Vel: 4.87 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 11.18 C Lift Cond Lev (LCL): 898.81 mb = 877.55 m = 2879.06 ft Lev Free Conv (LFC): 893.81 mb = 921.55 m = 3023.41 ft Equ Level (EL): 883.81 mb = 1010.23 m = 3314.38 ft B at Equ Level: 10.57 J/kg Max Parcel Lev (MPL): 863.81 mb = 1190.30 m = 3905.13 ft Wind level data Storm motion: 14 at 14 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 ---------------------------------------------------------- 0 966 306 330 9 4.5 -7.8 | 233 10 8.0 6.2 1 930 610 325 18 10.3 -14.7 | 273 14 13.9 -0.8 2 925 651 330 18 9.0 -15.6 | 277 13 12.5 -1.6 3 895 914 340 21 7.2 -19.7 | 298 12 10.7 -5.8 4 861 1219 355 18 1.6 -17.9 | 308 6 5.1 -4.0 5 850 1317 355 16 1.4 -15.9 | 292 5 4.9 -2.0 6 828 1524 360 16 -0.0 -16.0 | 300 4 3.5 -2.0 7 795 1829 335 15 6.3 -13.6 | 268 10 9.9 0.4 8 765 2134 345 24 6.2 -23.2 | 313 13 9.8 -9.2 9 735 2438 360 22 -0.0 -22.0 | 336 9 3.5 -8.0 10 707 2743 5 25 -2.2 -24.9 | 353 11 1.4 -10.9 11 700 2816 5 24 -2.1 -23.9 | 352 10 1.4 -9.9 12 651 3353 5 17 -1.5 -16.9 | 325 4 2.1 -3.0 13 625 3658 350 22 3.8 -21.7 | 316 11 7.4 -7.7 14 599 3962 340 23 7.9 -21.6 | 304 14 11.4 -7.7 15 575 4267 350 22 3.8 -21.7 | 316 11 7.4 -7.7 16 529 4877 350 19 3.3 -18.7 | 305 8 6.8 -4.8 17 500 5300 335 17 7.2 -15.4 | 278 11 10.7 -1.4 18 447 6096 295 17 15.4 -7.2 | 250 20 18.9 6.8 19 400 6870 260 11 10.8 1.9 | 222 21 14.4 15.9 20 392 7010 260 11 10.8 1.9 | 222 21 14.4 15.9 21 357 7620 255 11 10.6 2.8 | 220 22 14.2 16.8 22 341 7925 235 10 8.2 5.7 | 211 23 11.7 19.7 23 326 8230 240 12 10.4 6.0 | 215 24 13.9 20.0 24 311 8534 195 15 3.9 14.5 | 195 29 7.4 28.5 25 300 8780 195 12 3.1 11.6 | 195 26 6.6 25.6 26 297 8839 205 11 4.6 10.0 | 199 25 8.2 23.9 27 284 9144 200 13 4.4 12.2 | 197 27 8.0 26.2 28 275 9343 255 7 6.8 1.8 | 213 19 10.3 15.8 29 271 9449 240 10 8.7 5.0 | 213 23 12.2 19.0 30 250 9960 185 6 0.5 6.0 | 192 20 4.1 19.9 31 224 10668 190 4 0.7 3.9 | 193 18 4.2 17.9 32 200 11410 255 3 2.9 0.8 | 204 16 6.4 14.7 33 195 11582 315 1 0.7 -0.7 | 198 14 4.2 13.3 34 169 12497 205 10 4.2 9.1 | 199 24 7.8 23.0 35 150 13280 205 6 2.5 5.4 | 197 20 6.1 19.4 36 128 14326 185 10 0.9 10.0 | 190 24 4.4 23.9 37 111 15240 165 8 -2.1 7.7 | 184 22 1.5 21.7 38 101 15850 155 11 -4.6 10.0 | 177 24 -1.1 23.9 39 100 15940 135 14 -9.9 9.9 | 165 25 -6.4 23.9 40 97 16154 135 14 -9.9 9.9 | 165 25 -6.4 23.9 41 92 16459 155 19 -8.0 17.2 | 172 32 -4.5 31.2 42 88 16764 205 11 4.6 10.0 | 199 25 8.2 23.9 43 84 17069 140 10 -6.4 7.7 | 172 22 -2.9 21.6 44 80 17374 145 25 -14.3 20.5 | 163 36 -10.8 34.4 45 77 17678 155 28 -11.8 25.4 | 168 40 -8.3 39.3 46 73 17983 180 10 0.0 10.0 | 188 24 3.5 24.0 47 70 18288 120 10 -8.7 5.0 | 165 20 -5.1 19.0 48 70 18290 115 17 -15.4 7.2 | 151 24 -11.9 21.1 49 67 18593 120 18 -15.6 9.0 | 152 26 -12.0 23.0 50 64 18898 180 15 0.0 15.0 | 187 29 3.5 29.0 51 61 19202 195 10 2.6 9.7 | 195 24 6.1 23.6 52 58 19507 115 10 -9.1 4.2 | 163 19 -5.5 18.2 53 53 20117 170 17 -3.0 16.7 | 181 31 0.6 30.7 54 50 20510 170 12 -2.1 11.8 | 183 26 1.5 25.8 55 48 20726 160 13 -4.4 12.2 | 178 26 -0.9 26.2 56 46 21031 195 10 2.6 9.7 | 195 24 6.1 23.6 57 44 21336 175 8 -0.7 8.0 | 187 22 2.8 21.9 58 42 21641 135 1 -0.7 0.7 | 191 15 2.8 14.7 59 40 21946 60 10 -8.7 -5.0 | 150 10 -5.1 9.0 60 37 22555 125 18 -14.7 10.3 | 155 27 -11.2 24.3 61 35 22860 160 15 -5.1 14.1 | 177 28 -1.6 28.1 62 30 23774 145 11 -6.3 9.0 | 173 23 -2.8 23.0 63 30 23830 165 8 -2.1 7.7 | 184 22 1.5 21.7 64 25 24994 95 16 -15.9 1.4 | 141 20 -12.4 15.4 65 24 25298 80 14 -13.8 -2.4 | 138 15 -10.2 11.5 66 23 25603 105 12 -11.6 3.1 | 155 19 -8.1 17.1 67 20 26450 115 19 -17.2 8.0 | 148 26 -13.7 22.0 68 20 26518 85 16 -15.9 -1.4 | 135 18 -12.4 12.6 69 18 26822 115 19 -17.2 8.0 | 148 26 -13.7 22.0 70 16 27127 95 13 -13.0 1.1 | 148 18 -9.4 15.1 71 14 27432 100 15 -14.8 2.6 | 146 20 -11.2 16.6 Wind Parameters Mean winds (0-6000m): 344.2 at 19.2 knts Storm direction: 14.2 at 14.4 knts Shear (0-3000m) pos: 3.7 neg: 1.7 tot: 5.5 10-3/s Storm rel Dir Shear (0-3000m): 98.3 deg Storm rel helicity (0-3000m) pos: 90.8 neg: -12.0 tot: 78.8 m^2/s^2 ave: 26.3 10^-3 m/s^2 rel: 0.43 Storm rel vorticity (0-3000m) horiz: 9.5 stream: 4.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.65 Bulk Shear: 4.48 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 ------------------------------------------------------------------------------- 500 329 16 267 12| 11.2 0.0 11.2| 35.8 0.0 35.8 71.7 0.89| 13.4 11.9 1000 339 17 283 10| 4.6 0.0 4.6| 45.8 -2.2 43.5 43.5 0.60| 11.6 7.0 1500 343 17 284 9| 3.1 1.7 4.8| 46.3 -8.0 38.3 25.5 0.36| 10.3 3.7 2000 343 18 290 9| 4.7 1.3 6.0| 78.9 -8.0 70.9 35.5 0.51| 11.0 5.6 2500 348 19 301 9| 4.4 1.0 5.5| 90.8 -8.0 82.8 33.1 0.54| 10.0 5.4 3000 351 19 308 8| 3.7 1.7 5.5| 90.8 -12.0 78.8 26.3 0.43| 9.5 4.1 4000 351 20 309 9| 2.9 1.7 4.6| 97.6 -21.9 75.6 18.9 0.32| 8.9 2.9 5000 350 20 308 9| 2.3 2.0 4.3| 97.6 -37.7 59.9 12.0 0.21| 7.9 1.6 6000 344 19 297 10| 1.9 2.8 4.7| 97.6 -84.7 12.8 2.1 0.06| 7.9 0.5 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250417.00.gif