UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042000.upa.cvt Date: 0000Z 20 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:0000Z 20 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 51 SFC 969 306 -0.5 -1.6 92 1.1 -0.9 345 4 275.1 275.7 273.8 284.7 3.50 2 925 673 -3.7 -3.7 100 0.0 -3.7 5 17 275.5 276.1 273.5 284.2 3.14 3 921 707 -3.9 -3.9 100 0.0 -3.9 7 17 275.7 276.2 273.6 284.2 3.11 4 850 1335 -8.1 -9.4 90 1.3 -8.5 30 16 277.7 278.0 273.4 283.9 2.20 5 757 2226 -13.9 -15.2 90 1.3 -14.2 353 9 280.7 281.0 274.1 285.2 1.55 6 700 2819 -15.7 -17.2 88 1.5 -16.0 320 7 285.1 285.3 276.3 289.3 1.42 7 697 2851 -15.9 -17.3 89 1.4 -16.2 317 7 285.2 285.5 276.3 289.4 1.41 8 571 4335 -21.7 -22.9 90 1.2 -22.0 240 15 295.2 295.3 280.7 298.5 1.06 9 509 5172 -27.3 -30.0 78 2.7 -27.7 238 21 298.2 298.3 281.4 300.3 0.62 10 500 5300 -28.5 -30.8 81 2.3 -28.8 240 22 298.3 298.4 281.4 300.2 0.59 11 420 6526 -38.5 -39.6 89 1.1 -38.6 237 37 300.7 300.8 282.1 301.7 0.29 12 416 6592 -39.1 -41.9 75 2.8 -39.3 238 38 300.8 300.8 282.0 301.6 0.23 13 413 6641 -39.3 -47.3 42 8.0 -39.7 239 38 301.1 301.2 282.0 301.6 0.13 14 411 6675 -39.5 -44.5 59 5.0 -39.8 239 39 301.3 301.3 282.1 301.9 0.18 15 400 6860 -41.1 -44.3 71 3.2 -41.3 235 42 301.6 301.6 282.3 302.2 0.19 16 394 6963 -41.9 -44.5 76 2.6 -42.1 234 42 301.8 301.9 282.4 302.5 0.19 17 388 7066 -42.7 -48.7 52 6.0 -43.0 234 43 302.1 302.1 282.4 302.5 0.12 18 379 7224 -44.1 -49.1 57 5.0 -44.3 233 43 302.3 302.3 282.5 302.7 0.12 19 360 7569 -45.3 -61.3 15 16.0 -45.7 230 45 305.2 305.2 283.5 305.3 0.03 20 355 7662 -45.5 -60.5 17 15.0 -45.9 230 45 306.1 306.1 283.9 306.2 0.03 21 340 7950 -45.3 -60.3 17 15.0 -45.7 230 45 310.2 310.2 285.4 310.3 0.03 22 331 8129 -46.3 -57.3 28 11.0 -46.6 230 44 311.2 311.2 285.8 311.4 0.05 23 320 8353 -47.5 -60.5 21 13.0 -47.8 230 44 312.6 312.6 286.3 312.7 0.03 24 312 8520 -47.1 -70.1 5 23.0 -47.5 230 45 315.4 315.4 287.2 315.4 0.01 25 300 8780 -47.3 -71.3 5 24.0 -47.7 235 42 318.7 318.7 288.3 318.7 0.01 26 250 9990 -45.7 -77.7 2 32.0 -46.3 250 33 338.1 338.1 293.9 338.1 0.00 27 218 10898 -45.1 -79.1 1 34.0 -45.9 263 35 352.6 352.6 297.2 352.6 0.00 28 200 11470 -45.7 -79.7 1 34.0 -46.4 260 38 360.4 360.4 298.8 360.4 0.00 29 168 12629 -47.7 -81.7 1 34.0 -48.4 264 38 375.5 375.5 301.5 375.5 0.00 30 150 13380 -46.7 -81.7 1 35.0 -47.6 270 36 389.6 389.6 303.8 389.6 0.00 31 125 14584 -47.1 -82.1 1 35.0 -48.1 267 32 409.7 409.7 306.5 409.7 0.00 32 117 15019 -48.9 -82.9 1 34.0 -49.8 272 31 414.2 414.2 307.0 414.2 0.00 33 112 15306 -47.9 -82.9 1 35.0 -49.0 277 30 421.3 421.3 307.9 421.3 0.00 34 100 16050 -48.7 -83.7 1 35.0 -49.8 270 31 433.6 433.6 309.2 433.6 0.00 35 93 16527 -48.5 -83.5 1 35.0 -49.7 270 30 443.1 443.1 310.2 443.1 0.00 36 80 17511 -50.9 -84.9 1 34.0 -52.0 273 18 457.7 457.7 311.5 457.7 0.00 37 77 17760 -49.9 -84.9 1 35.0 -51.1 264 16 464.8 464.8 312.2 464.8 0.00 38 71 18288 -51.7 -85.7 1 34.0 -52.8 260 16 471.9 471.9 312.8 471.9 0.00 39 70 18380 -50.5 -85.5 1 35.0 -51.7 290 16 476.3 476.3 313.1 476.4 0.00 40 50 20580 -49.5 -84.5 1 35.0 -51.3 320 13 526.8 526.8 316.7 526.9 0.01 41 49 20712 -49.5 -85.5 1 36.0 -51.3 298 11 529.9 529.9 316.9 529.9 0.01 42 30 23900 -52.1 -87.1 1 35.0 -54.2 180 1 602.6 602.6 320.7 602.6 0.01 43 20 26540 -50.3 -86.3 1 36.0 -53.7 95 8 682.2 682.2 323.9 682.3 0.01 44 10 31120 -44.5 -84.5 0 40.0 -52.5 35 15 853.4 853.5 328.5 853.7 0.03 45 8.9 31903 -43.3 -83.3 0 40.0 -52.4 887.0 887.0 329.2 887.4 0.04 46 8.1 32535 -44.3 -84.3 0 40.0 -53.2 907.2 907.3 329.5 907.6 0.04 47 7.3 33239 -39.7 -80.7 0 41.0 -51.7 953.4 953.5 330.4 954.3 0.08 48 4.9 36006 -32.7 -76.7 0 44.0 -51.4 1100.6 1100.8 332.6 1103.6 0.23 TRP 320 8353 -47.5 -60.5 21 13.0 -47.8 230 44 312.6 312.6 286.3 312.7 0.03 WND Sounding variables and indices 1000-500 mb thick: 5249.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.35 inches Sfc-500 mean rel hum: 89.50 % Est. max temperature: 3.01 C = 37.42 F Sfc-Lift cond lev (LCL): 952.34 mb = 442.94 m = 1453.18 ft T: -1.69 C 700-500 lapse rate: 5.16 C/km ThetaE index: 0.53 C Layer 925.0- 921.0 mb Conv cond level (CCL): 911.57 mb = 787.73 m = 2584.38 ft Mean mixing ratio: 3.02 g/kg Conv temperature: 0.30 C = 32.54 F Cap Strength: 12.17 C Lifted Index: 12.14 C Risk: None Lifted Index @300 mb: 24.46 C Lifted Index @700 mb: 3.85 C Showalter Index: 12.38 C Risk: None Total Totals Index: 39.50 C Risk: None Vertical Totals Index: 20.40 C Cross Totals Index: 19.10 C K Index: 9.50 Risk: None Sweat Index: 54.00 Risk: None Energy Index: 3.39 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.30 J/kg Max Up Vert Vel: 4.07 m/s Conv Inhibition (B-): 74759.95 J/kg Cap Strength: 12.14 C Lift Cond Lev (LCL): 911.74 mb = 786.24 m = 2579.50 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 301 at 12 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 ---------------------------------------------------------- 0 969 306 345 4 1.0 -3.9 | 104 9 -9.2 2.2 1 932 610 355 15 1.3 -14.9 | 45 13 -8.9 -8.8 2 925 673 5 17 -1.5 -16.9 | 47 16 -11.7 -10.8 3 897 914 20 18 -6.2 -16.9 | 57 20 -16.4 -10.8 4 863 1219 25 16 -6.8 -14.5 | 64 19 -17.0 -8.4 5 850 1335 30 16 -8.0 -13.9 | 67 20 -18.2 -7.7 6 797 1829 20 12 -4.1 -11.3 | 70 15 -14.3 -5.2 7 766 2134 350 9 1.6 -8.9 | 72 9 -8.7 -2.8 8 736 2438 360 10 -0.0 -10.0 | 69 11 -10.2 -3.9 9 707 2743 310 6 4.6 -3.9 | 112 6 -5.6 2.3 10 700 2819 320 7 4.5 -5.4 | 97 6 -5.7 0.8 11 651 3353 275 10 10.0 -0.9 | 177 5 -0.3 5.2 12 625 3658 270 13 13.0 -0.0 | 204 7 2.8 6.1 13 599 3962 275 10 10.0 -0.9 | 177 5 -0.3 5.2 14 575 4267 240 15 13.0 7.5 | 192 14 2.8 13.6 15 530 4877 235 20 16.4 11.5 | 199 19 6.2 17.6 16 500 5300 240 22 19.1 11.0 | 207 19 8.8 17.1 17 487 5486 245 24 21.8 10.1 | 215 20 11.5 16.3 18 466 5791 230 28 21.4 18.0 | 205 27 11.2 24.1 19 446 6096 230 32 24.5 20.6 | 208 30 14.3 26.7 20 409 6706 240 39 33.8 19.5 | 223 35 23.6 25.6 21 400 6860 235 42 34.4 24.1 | 219 39 24.2 30.2 22 357 7620 230 45 34.5 28.9 | 215 43 24.3 35.0 23 320 8353 230 44 33.7 28.3 | 214 42 23.5 34.4 24 311 8534 230 45 34.5 28.9 | 215 43 24.3 35.0 25 300 8780 235 42 34.4 24.1 | 219 39 24.2 30.2 26 284 9144 240 42 36.4 21.0 | 224 38 26.2 27.1 27 250 9990 250 33 31.0 11.3 | 230 27 20.8 17.4 28 226 10668 255 37 35.7 9.6 | 238 30 25.5 15.7 29 216 10973 265 35 34.9 3.1 | 250 26 24.6 9.2 30 200 11470 260 38 37.4 6.6 | 245 30 27.2 12.7 31 164 12802 265 38 37.9 3.3 | 251 29 27.6 9.4 32 156 13106 280 36 35.5 -6.3 | 270 25 25.2 -0.1 33 150 13380 270 36 36.0 -0.0 | 257 26 25.8 6.1 34 136 14021 260 33 32.5 5.7 | 242 25 22.3 11.8 35 113 15240 275 30 29.9 -2.6 | 260 20 19.7 3.5 36 108 15545 285 32 30.9 -8.3 | 276 21 20.7 -2.2 37 100 16050 270 31 31.0 -0.0 | 254 22 20.8 6.1 38 94 16459 270 31 31.0 -0.0 | 254 22 20.8 6.1 39 90 16764 270 26 26.0 -0.0 | 249 17 15.8 6.1 40 82 17374 280 22 21.7 -3.8 | 259 12 11.4 2.3 41 78 17678 265 13 13.0 1.1 | 201 8 2.7 7.2 42 74 17983 260 23 22.7 4.0 | 231 16 12.4 10.1 43 71 18288 260 16 15.8 2.8 | 212 10 5.5 8.9 44 70 18380 290 16 15.0 -5.5 | 262 5 4.8 0.6 45 68 18593 290 15 14.1 -5.1 | 256 4 3.9 1.0 46 65 18898 250 8 7.5 2.7 | 163 9 -2.7 8.8 47 62 19202 235 10 8.2 5.7 | 170 12 -2.0 11.8 48 59 19507 225 17 12.0 12.0 | 186 18 1.8 18.1 49 56 19812 255 26 25.1 6.7 | 229 20 14.9 12.8 50 54 20117 310 18 13.8 -11.6 | 327 7 3.6 -5.5 51 51 20422 290 12 11.3 -4.1 | 208 2 1.1 2.0 52 50 20580 320 13 8.4 -10.0 | 26 4 -1.9 -3.8 53 49 20726 295 11 10.0 -4.6 | 170 1 -0.2 1.5 54 47 21031 320 13 8.4 -10.0 | 26 4 -1.9 -3.8 55 45 21336 345 7 1.8 -6.8 | 86 8 -8.4 -0.6 56 39 22250 240 11 9.5 5.5 | 177 12 -0.7 11.6 57 37 22555 275 10 10.0 -0.9 | 177 5 -0.3 5.2 58 31 23774 0 0 -0.0 -0.0 | 121 12 -10.2 6.1 59 30 23900 180 1 0.0 1.0 | 125 12 -10.2 7.1 60 22 25908 35 10 -5.7 -8.2 | 83 16 -16.0 -2.1 61 21 26213 90 10 -10.0 0.0 | 107 21 -20.2 6.1 62 20 26540 95 8 -8.0 0.7 | 111 19 -18.2 6.8 63 17 27432 130 6 -4.6 3.9 | 124 18 -14.8 10.0 64 17 27737 85 1 -1.0 -0.1 | 118 13 -11.2 6.0 65 16 28042 30 10 -5.0 -8.7 | 80 15 -15.2 -2.5 66 15 28346 65 23 -20.8 -9.7 | 83 31 -31.1 -3.6 67 14 28956 75 19 -18.4 -4.9 | 92 29 -28.6 1.2 68 13 29261 50 11 -8.4 -7.1 | 87 19 -18.6 -1.0 69 13 29566 70 17 -16.0 -5.8 | 91 26 -26.2 0.3 70 12 29870 70 15 -14.1 -5.1 | 92 24 -24.3 1.0 71 12 30175 65 15 -13.6 -6.3 | 89 24 -23.8 -0.2 72 10 31120 35 15 -8.6 -12.3 | 72 20 -18.8 -6.2 Wind Parameters Mean winds (0-6000m): 270.9 at 15.9 knts Storm direction: 300.9 at 11.9 knts Shear (0-3000m) pos: 2.3 neg: 3.7 tot: 6.0 10-3/s Storm rel Dir Shear (0-3000m): 68.8 deg Storm rel helicity (0-3000m) pos: 50.6 neg: -27.3 tot: 23.3 m^2/s^2 ave: 7.8 10^-3 m/s^2 rel: 0.13 Storm rel vorticity (0-3000m) horiz: 8.3 stream: 1.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.16 Bulk Shear: 53.01 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 0 12 59 12| 14.6 0.0 14.6| 8.0 -24.8 -16.8 -33.6 -0.47| 17.6 -8.2 1000 13 15 59 16| 6.9 0.0 6.9| 31.3 -24.8 6.4 6.4 -0.15| 11.6 -1.7 1500 17 15 62 16| 4.6 1.5 6.1| 36.5 -24.8 11.7 7.8 -0.08| 9.3 -0.8 2000 15 13 63 15| 3.4 2.5 5.9| 37.7 -26.3 11.4 5.7 -0.07| 8.6 -0.6 2500 11 12 64 14| 2.8 3.1 5.9| 45.6 -27.3 18.3 7.3 0.04| 8.6 0.3 3000 4 12 63 12| 2.3 3.7 6.0| 50.6 -27.3 23.3 7.8 0.13| 8.3 1.1 4000 341 12 52 8| 1.7 3.9 5.6| 57.0 -30.7 26.3 6.6 0.13| 8.0 1.1 5000 305 13 336 2| 1.2 3.5 4.7| 79.1 -30.7 48.4 9.7 0.19| 7.2 1.3 6000 271 16 224 8| 0.7 3.6 4.2|125.6 -55.1 70.5 11.7 0.18| 7.5 1.4 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250420.00.gif