UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042400.upa.cvt Date: 0000Z 24 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:0000Z 24 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 191 SFC 986 306 6.0 -3.0 52 9.0 2.3 20 1 280.3 280.8 276.2 289.0 3.10 2 925 826 1.6 -4.4 64 6.0 -0.7 5 7 280.9 281.5 276.3 289.4 2.98 3 850 1500 -4.5 -7.0 83 2.5 -5.4 340 16 281.4 281.9 276.2 289.0 2.66 4 798 1993 -9.1 -9.1 100 0.0 -9.1 345 16 281.7 282.1 275.9 288.5 2.40 5 794 2031 -8.1 -15.1 57 7.0 -10.0 347 17 283.1 283.4 275.3 287.5 1.49 6 790 2071 -6.9 -18.9 38 12.0 -9.9 348 17 284.8 285.0 275.7 288.1 1.09 7 787 2100 -6.9 -14.9 53 8.0 -9.2 349 18 285.1 285.4 276.5 289.7 1.53 8 779 2180 -7.1 -12.1 67 5.0 -8.7 350 18 285.7 286.1 277.4 291.4 1.94 9 734 2641 -10.5 -15.2 68 4.7 -11.8 343 15 286.9 287.2 277.5 291.7 1.60 10 728 2704 -10.3 -18.3 52 8.0 -12.3 341 13 287.8 288.0 277.4 291.6 1.24 11 723 2757 -8.7 -33.7 11 25.0 -13.0 338 12 290.2 290.2 277.2 291.2 0.31 12 712 2876 -8.1 -39.1 6 31.0 -12.9 325 16 292.1 292.1 278.0 292.7 0.18 13 702 2986 -8.5 -40.5 6 32.0 -13.3 313 19 292.8 292.9 278.3 293.4 0.16 14 700 3008 -8.7 -39.7 6 31.0 -13.4 310 20 292.9 292.9 278.3 293.4 0.17 15 680 3232 -10.3 -31.3 16 21.0 -14.1 310 19 293.5 293.6 279.0 294.8 0.41 16 651 3565 -13.3 -20.3 56 7.0 -15.0 310 16 293.8 294.0 280.2 297.4 1.17 17 629 3826 -14.5 -23.5 46 9.0 -16.4 303 17 295.3 295.5 280.6 298.2 0.91 18 614 4008 -15.7 -20.7 65 5.0 -16.9 295 19 296.0 296.2 281.2 299.7 1.20 19 580 4436 -17.9 -28.9 38 11.0 -19.8 300 19 298.3 298.4 281.4 300.3 0.61 20 572 4539 -18.7 -26.7 49 8.0 -20.2 303 20 298.5 298.7 281.7 301.0 0.75 21 568 4592 -18.7 -29.7 37 11.0 -20.6 305 20 299.1 299.2 281.8 301.0 0.57 22 560 4697 -19.5 -28.5 45 9.0 -21.1 300 19 299.4 299.5 282.0 301.5 0.65 23 500 5530 -24.7 -38.7 26 14.0 -26.3 290 19 302.9 303.0 283.0 303.9 0.27 24 491 5662 -25.1 -46.1 12 21.0 -27.0 283 18 304.0 304.0 283.2 304.5 0.12 25 463 6084 -28.7 -52.7 8 24.0 -30.3 294 16 304.7 304.7 283.4 304.9 0.06 26 418 6805 -35.1 -58.1 8 23.0 -36.1 281 23 305.5 305.5 283.7 305.6 0.04 27 408 6973 -36.5 -48.5 28 12.0 -37.2 278 25 305.8 305.8 283.9 306.2 0.11 28 400 7110 -37.7 -49.7 27 12.0 -38.4 275 26 306.0 306.0 284.0 306.4 0.10 29 375 7553 -41.7 -54.7 23 13.0 -42.2 267 25 306.4 306.4 284.0 306.6 0.06 30 351 8000 -45.3 -52.3 45 7.0 -45.6 255 25 307.4 307.4 284.4 307.7 0.09 31 344 8134 -46.3 -55.3 35 9.0 -46.6 251 25 307.8 307.8 284.6 308.0 0.06 32 313 8756 -52.1 -55.2 69 3.1 -52.2 242 26 308.2 308.2 284.7 308.4 0.07 33 300 9030 -54.3 -57.2 70 2.9 -54.4 245 27 308.8 308.8 284.9 309.0 0.06 34 292 9203 -55.5 -59.9 58 4.4 -55.6 246 27 309.5 309.5 285.2 309.7 0.04 35 284 9379 -56.9 -59.0 77 2.1 -56.9 249 27 310.0 310.0 285.4 310.1 0.05 36 278 9514 -57.5 -60.3 70 2.8 -57.5 248 28 311.0 311.0 285.7 311.2 0.04 37 273 9628 -57.9 -65.9 35 8.0 -58.0 244 29 312.0 312.0 286.1 312.1 0.02 38 270 9698 -58.5 -65.5 40 7.0 -58.6 242 29 312.1 312.2 286.1 312.2 0.02 39 262 9887 -59.1 -65.1 46 6.0 -59.2 246 29 314.0 314.0 286.8 314.1 0.02 40 258 9983 -59.5 -70.5 23 11.0 -59.6 250 29 314.8 314.8 287.0 314.8 0.01 41 253 10105 -59.3 -72.3 17 13.0 -59.4 253 30 316.8 316.8 287.7 316.9 0.01 42 250 10180 -58.7 -67.7 30 9.0 -58.8 255 30 318.8 318.8 288.3 318.9 0.02 43 249 10205 -58.7 -65.7 40 7.0 -58.8 256 30 319.2 319.2 288.5 319.3 0.02 44 243 10357 -58.3 -74.3 11 16.0 -58.5 260 28 322.0 322.0 289.3 322.0 0.01 45 225 10844 -53.3 -81.3 2 28.0 -53.6 244 25 336.8 336.8 293.5 336.8 0.00 46 212 11226 -52.9 -80.9 2 28.0 -53.2 252 28 343.2 343.2 295.1 343.2 0.00 47 200 11600 -52.7 -81.7 2 29.0 -53.1 260 32 349.3 349.3 296.5 349.3 0.00 48 168 12732 -50.7 -82.7 1 32.0 -51.2 252 26 370.5 370.5 300.7 370.5 0.00 49 150 13470 -51.5 -83.5 1 32.0 -52.1 270 25 381.3 381.3 302.5 381.3 0.00 50 145 13690 -51.9 -83.9 1 32.0 -52.4 274 28 384.4 384.4 302.9 384.4 0.00 51 138 14012 -50.7 -83.7 1 33.0 -51.4 256 23 391.9 391.9 304.0 392.0 0.00 52 129 14449 -52.3 -84.3 1 32.0 -52.9 257 22 396.7 396.7 304.8 396.7 0.00 53 115 15198 -48.9 -83.9 1 35.0 -49.8 269 26 416.3 416.3 307.3 416.3 0.00 54 106 15731 -51.3 -84.3 1 33.0 -52.1 280 15 421.5 421.5 307.9 421.5 0.00 55 100 16110 -50.9 -84.9 1 34.0 -51.8 250 21 429.4 429.4 308.8 429.4 0.00 56 97 16308 -51.9 -84.9 1 33.0 -52.7 256 24 431.2 431.2 309.0 431.2 0.00 57 88 16944 -48.5 -84.5 1 36.0 -49.7 266 15 450.2 450.2 310.8 450.2 0.00 58 70 18430 -54.7 -86.7 1 32.0 -55.5 265 17 467.4 467.4 312.4 467.4 0.00 59 66 18807 -55.7 -86.7 1 31.0 -56.4 273 15 473.1 473.1 312.9 473.1 0.00 60 50 20590 -53.7 -86.7 1 33.0 -54.9 250 17 516.9 516.9 316.1 517.0 0.00 61 41 21871 -51.5 -86.5 1 35.0 -53.2 4 10 552.6 552.6 318.2 552.6 0.01 62 34 23082 -53.1 -87.1 1 34.0 -54.8 16 1 578.8 578.8 319.6 578.8 0.01 63 30 23890 -52.3 -87.3 1 35.0 -54.4 65 6 602.1 602.1 320.7 602.1 0.01 64 20 26520 -51.3 -87.3 1 36.0 -54.4 130 5 679.1 679.2 323.7 679.2 0.01 65 12 29861 -49.5 -86.5 1 37.0 -54.6 102 14 792.4 792.4 327.1 792.5 0.02 66 10 31070 -44.7 -84.7 0 40.0 -52.6 155 5 852.7 852.7 328.5 853.0 0.03 67 9.8 31205 -44.3 -84.3 0 40.0 -52.4 859.1 859.2 328.6 859.4 0.03 68 9.1 31701 -45.1 -85.1 0 40.0 -53.2 874.5 874.5 328.9 874.8 0.03 69 7.2 33294 -36.7 -78.7 0 42.0 -50.5 969.5 969.6 330.7 970.8 0.11 70 6.0 34559 -36.1 -79.1 0 43.0 -51.4 1024.0 1024.1 331.6 1025.5 0.13 71 4.8 36117 -33.3 -77.3 0 44.0 -51.7 1104.3 1104.5 332.7 1107.2 0.21 TRP 258 9983 -59.5 -70.5 23 11.0 -59.6 250 29 314.8 314.8 287.0 314.8 0.01 WND Sounding variables and indices 1000-500 mb thick: 5339.00 m Freezing level: 905.33 mb = 1002.79 m = 3289.94 ft Wetbulb zero: 939.85 mb = 696.28 m = 2284.37 ft Precipitable water: 0.33 inches Sfc-500 mean rel hum: 52.33 % Est. max temperature: 7.22 C = 44.99 F Sfc-Lift cond lev (LCL): 858.22 mb = 1423.28 m = 4669.51 ft T: -3.81 C 700-500 lapse rate: 6.34 C/km ThetaE index: 1.85 C Layer 850.0- 790.0 mb Conv cond level (CCL): 835.68 mb = 1632.57 m = 5356.13 ft Mean mixing ratio: 2.98 g/kg Conv temperature: 7.21 C = 44.99 F Cap Strength: 10.19 C Lifted Index: 12.14 C Risk: None Lifted Index @300 mb: 13.94 C Lifted Index @700 mb: 7.45 C Showalter Index: 12.28 C Risk: None Total Totals Index: 37.90 C Risk: None Vertical Totals Index: 20.20 C Cross Totals Index: 17.70 C K Index: -17.80 Risk: None Sweat Index: 51.00 Risk: None Energy Index: 3.12 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.03 J/kg Max Up Vert Vel: 2.84 m/s Conv Inhibition (B-): 13.15 J/kg Cap Strength: 11.97 C Lift Cond Lev (LCL): 844.30 mb = 1552.51 m = 5093.47 ft Lev Free Conv (LFC): 809.30 mb = 1882.84 m = 6177.21 ft Equ Level (EL): 799.30 mb = 1979.84 m = 6495.46 ft B at Equ Level: 3.16 J/kg Max Parcel Lev (MPL): 789.30 mb = 2077.70 m = 6816.52 ft Wind level data Storm motion: 345 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 ---------------------------------------------------------- 0 986 306 20 1 -0.3 -0.9 | 162 11 -3.4 10.3 1 950 610 10 8 -1.4 -7.9 | 128 6 -4.4 3.4 2 925 826 5 7 -0.6 -7.0 | 140 6 -3.6 4.3 3 915 914 360 7 -0.0 -7.0 | 145 5 -3.0 4.3 4 880 1219 350 11 1.9 -10.8 | 112 1 -1.1 0.5 5 850 1500 340 16 5.5 -15.0 | 327 4 2.4 -3.7 6 847 1524 335 15 6.3 -13.6 | 305 4 3.3 -2.3 7 815 1829 340 14 4.8 -13.2 | 317 3 1.7 -1.9 8 783 2134 350 18 3.1 -17.7 | 359 6 0.1 -6.4 9 753 2438 350 21 3.6 -20.7 | 356 9 0.6 -9.4 10 724 2743 340 12 4.1 -11.3 | 269 1 1.1 0.0 11 700 3008 310 20 15.3 -12.9 | 277 12 12.3 -1.6 12 696 3048 310 20 15.3 -12.9 | 277 12 12.3 -1.6 13 642 3658 310 15 11.5 -9.6 | 259 9 8.5 1.6 14 616 3962 295 19 17.2 -8.0 | 257 15 14.2 3.3 15 592 4267 295 18 16.3 -7.6 | 255 14 13.3 3.7 16 568 4572 305 20 16.4 -11.5 | 271 13 13.3 -0.2 17 546 4877 290 17 16.0 -5.8 | 247 14 12.9 5.5 18 503 5486 310 17 13.0 -10.9 | 268 10 10.0 0.4 19 500 5530 290 19 17.9 -6.5 | 252 16 14.8 4.8 20 482 5791 275 16 15.9 -1.4 | 233 16 12.9 9.9 21 462 6096 295 16 14.5 -6.8 | 248 12 11.5 4.5 22 400 7110 275 26 25.9 -2.3 | 248 25 22.9 9.0 23 371 7620 265 25 24.9 2.2 | 238 26 21.9 13.5 24 323 8534 240 25 21.7 12.5 | 218 30 18.6 23.8 25 300 9030 245 27 24.5 11.4 | 223 31 21.4 22.7 26 295 9144 245 27 24.5 11.4 | 223 31 21.4 22.7 27 281 9449 250 27 25.4 9.2 | 227 30 22.3 20.5 28 268 9754 240 30 26.0 15.0 | 221 35 22.9 26.3 29 258 9983 250 29 27.3 9.9 | 229 32 24.2 21.2 30 250 10180 255 30 29.0 7.8 | 234 32 25.9 19.1 31 243 10363 260 28 27.6 4.9 | 237 29 24.5 16.1 32 232 10668 240 23 19.9 11.5 | 217 28 16.9 22.8 33 200 11600 260 32 31.5 5.6 | 239 33 28.5 16.8 34 191 11887 270 30 30.0 -0.0 | 247 29 27.0 11.3 35 174 12497 260 35 34.5 6.1 | 241 36 31.4 17.4 36 166 12802 250 24 22.6 8.2 | 225 28 19.5 19.5 37 151 13411 255 29 28.0 7.5 | 233 31 25.0 18.8 38 150 13470 270 25 25.0 -0.0 | 243 25 22.0 11.3 39 144 13716 275 28 27.9 -2.4 | 250 26 24.9 8.8 40 138 14021 255 23 22.2 6.0 | 228 26 19.2 17.2 41 132 14326 255 21 20.3 5.4 | 226 24 17.2 16.7 42 120 14935 265 27 26.9 2.4 | 240 27 23.9 13.6 43 114 15240 270 26 26.0 -0.0 | 244 26 23.0 11.3 44 109 15545 310 17 13.0 -10.9 | 268 10 10.0 0.4 45 104 15850 260 13 12.8 2.3 | 216 17 9.8 13.5 46 100 16110 250 21 19.7 7.2 | 222 25 16.7 18.5 47 95 16459 260 26 25.6 4.5 | 235 28 22.6 15.8 48 90 16764 275 15 14.9 -1.3 | 230 16 11.9 10.0 49 86 17069 260 15 14.8 2.6 | 220 18 11.7 13.9 50 82 17374 230 14 10.7 9.0 | 201 22 7.7 20.3 51 79 17678 260 17 16.7 3.0 | 224 20 13.7 14.2 52 75 17983 250 19 17.9 6.5 | 220 23 14.8 17.8 53 72 18288 270 18 18.0 -0.0 | 233 19 15.0 11.3 54 70 18430 265 17 16.9 1.5 | 227 19 13.9 12.8 55 68 18593 255 16 15.5 4.1 | 219 20 12.4 15.4 56 65 18898 280 15 14.8 -2.6 | 234 15 11.7 8.7 57 62 19202 235 13 10.6 7.5 | 202 20 7.6 18.7 58 59 19507 225 3 2.1 2.1 | 176 13 -0.9 13.4 59 56 19812 215 10 5.7 8.2 | 188 20 2.7 19.5 60 54 20117 240 23 19.9 11.5 | 217 28 16.9 22.8 61 51 20422 240 2 1.7 1.0 | 174 12 -1.3 12.3 62 50 20590 250 17 16.0 5.8 | 217 21 12.9 17.1 63 49 20726 235 18 14.7 10.3 | 208 25 11.7 21.6 64 47 21031 275 15 14.9 -1.3 | 230 16 11.9 10.0 65 45 21336 285 10 9.7 -2.6 | 217 11 6.6 8.7 66 42 21641 345 5 1.3 -4.8 | 165 7 -1.7 6.5 67 41 21946 10 11 -1.9 -10.8 | 95 5 -4.9 0.5 68 39 22250 100 18 -17.7 3.1 | 125 25 -20.8 14.4 69 37 22555 120 10 -8.7 5.0 | 144 20 -11.7 16.3 70 34 23165 0 0 -0.0 -0.0 | 165 12 -3.0 11.3 71 30 23890 65 6 -5.4 -2.5 | 136 12 -8.5 8.8 72 28 24384 65 10 -9.1 -4.2 | 120 14 -12.1 7.1 73 27 24689 70 15 -14.1 -5.1 | 110 18 -17.1 6.2 74 25 24994 70 10 -9.4 -3.4 | 122 15 -12.4 7.9 75 24 25298 75 15 -14.5 -3.9 | 113 19 -17.5 7.4 76 22 25908 135 10 -7.1 7.1 | 151 21 -10.1 18.4 77 20 26520 130 5 -3.8 3.2 | 155 16 -6.9 14.5 78 18 27127 105 3 -2.9 0.8 | 154 13 -5.9 12.1 79 17 27432 105 10 -9.7 2.6 | 138 19 -12.7 13.9 80 16 28042 65 12 -10.9 -5.1 | 114 15 -13.9 6.2 81 15 28346 110 15 -14.1 5.1 | 134 24 -17.1 16.4 82 14 28956 25 10 -4.2 -9.1 | 107 8 -7.3 2.2 83 13 29261 75 18 -17.4 -4.7 | 108 21 -20.4 6.6 84 10 31070 155 5 -2.1 4.5 | 162 17 -5.2 15.8 Wind Parameters Mean winds (0-6000m): 314.9 at 15.6 knts Storm direction: 344.9 at 11.7 knts Shear (0-3000m) pos: 1.1 neg: 2.8 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 109.2 deg Storm rel helicity (0-3000m) pos: 5.8 neg: -25.4 tot: -19.7 m^2/s^2 ave: -6.6 10^-3 m/s^2 rel: -0.27 Storm rel vorticity (0-3000m) horiz: 8.6 stream: -2.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.18 Bulk Shear: 22.78 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 9 6 145 7| 0.0 6.3 6.3| 1.5 -9.7 -8.1 -16.3 -0.45| 8.2 -3.7 1000 0 7 142 5| 0.0 6.0 6.0| 2.3 -11.1 -8.8 -8.8 -0.44| 7.7 -3.4 1500 350 10 143 2| 0.0 4.6 4.6| 2.6 -13.2 -10.6 -7.1 -0.43| 7.2 -3.1 2000 349 12 83 1| 1.6 3.4 5.1| 5.8 -13.5 -7.7 -3.9 -0.23| 7.1 -1.6 2500 348 13 19 1| 1.3 2.0 3.3| 5.8 -18.0 -12.2 -4.9 -0.27| 8.0 -2.2 3000 340 14 315 2| 1.1 2.8 3.9| 5.8 -25.4 -19.7 -6.6 -0.27| 8.6 -2.3 4000 328 15 284 5| 0.8 2.3 3.2| 7.0 -34.1 -27.1 -6.8 -0.27| 7.6 -2.1 5000 321 15 275 7| 1.0 1.9 2.8| 26.1 -51.3 -25.2 -5.0 -0.22| 7.3 -1.6 6000 315 16 268 8| 1.2 1.8 3.0| 44.2 -81.9 -37.8 -6.3 -0.20| 7.7 -1.6 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250424.00.gif