UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041612.upa.cvt Date: 1200Z 16 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:1200Z 16 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 9 SFC 964 306 -0.9 -4.6 76 3.7 -2.3 35 2 275.1 275.6 272.8 282.9 2.81 2 934 556 -2.1 -5.1 80 3.0 -3.2 93 11 276.4 276.9 273.5 284.2 2.80 3 925 633 -2.3 -5.6 78 3.3 -3.5 110 13 277.0 277.4 273.8 284.5 2.72 4 850 1303 -3.9 -7.5 76 3.6 -5.2 30 15 282.1 282.5 276.3 289.4 2.56 5 847 1331 -4.1 -7.8 75 3.7 -5.4 32 15 282.1 282.6 276.3 289.3 2.51 6 840 1396 -4.5 -9.2 70 4.7 -6.1 38 15 282.4 282.8 276.1 288.9 2.26 7 830 1491 -4.3 -17.3 36 13.0 -7.8 47 16 283.6 283.8 275.2 287.1 1.18 8 821 1577 -4.1 -11.1 58 7.0 -6.4 50 16 284.7 285.0 276.9 290.5 1.99 9 788 1899 -6.3 -15.3 49 9.0 -8.9 46 16 285.7 285.9 276.7 290.1 1.47 10 774 2038 -7.5 -11.8 71 4.3 -8.8 37 17 285.8 286.2 277.5 291.7 2.00 11 732 2470 -10.3 -20.3 44 10.0 -12.7 31 18 287.4 287.6 276.9 290.6 1.04 12 718 2619 -11.5 -16.5 66 5.0 -12.8 39 17 287.7 287.9 277.7 292.1 1.46 13 700 2813 -12.9 -18.9 61 6.0 -14.3 40 17 288.2 288.4 277.6 291.9 1.23 14 687 2956 -13.9 -20.9 55 7.0 -15.4 43 18 288.6 288.8 277.6 291.9 1.05 15 684 2989 -13.9 -28.9 27 15.0 -16.5 43 18 289.0 289.1 277.0 290.6 0.51 16 680 3034 -14.1 -33.1 18 19.0 -17.0 44 18 289.3 289.3 276.9 290.4 0.35 17 589 4109 -22.1 -31.1 44 9.0 -23.4 46 16 292.1 292.2 278.4 293.6 0.48 18 584 4171 -22.3 -32.3 40 10.0 -23.7 49 16 292.6 292.6 278.6 294.0 0.44 19 583 4184 -22.3 -27.3 64 5.0 -23.1 50 16 292.7 292.8 279.0 294.9 0.70 20 577 4260 -22.5 -25.9 74 3.4 -23.1 54 17 293.3 293.5 279.5 295.9 0.80 21 566 4401 -23.5 -25.6 83 2.1 -23.9 44 16 293.8 293.9 279.7 296.4 0.84 22 500 5300 -28.5 -31.9 73 3.4 -28.9 15 13 298.3 298.4 281.3 300.0 0.53 23 498 5329 -28.7 -32.2 72 3.5 -29.2 16 13 298.4 298.5 281.4 300.1 0.52 24 477 5637 -29.1 -34.0 63 4.9 -29.7 18 11 301.6 301.7 282.6 303.1 0.45 25 410 6701 -38.3 -40.2 82 1.9 -38.4 14 7 303.1 303.1 283.0 304.0 0.28 26 400 6870 -39.9 -42.8 74 2.9 -40.1 15 7 303.1 303.2 283.0 303.9 0.22 27 393 6990 -41.1 -43.4 78 2.3 -41.2 24 6 303.1 303.1 282.9 303.8 0.21 28 386 7111 -41.9 -46.8 59 4.9 -42.2 34 6 303.6 303.6 283.1 304.1 0.15 29 376 7288 -43.5 -47.5 65 4.0 -43.7 48 5 303.8 303.8 283.1 304.3 0.14 30 374 7323 -43.9 -49.9 51 6.0 -44.2 50 5 303.7 303.7 283.0 304.1 0.11 31 351 7744 -47.5 -51.3 65 3.8 -47.6 102 2 304.4 304.4 283.3 304.8 0.10 32 329 8167 -51.1 -54.6 66 3.5 -51.2 150 3 305.2 305.2 283.5 305.4 0.07 33 324 8266 -51.5 -57.5 49 6.0 -51.6 150 4 306.0 306.0 283.8 306.1 0.05 34 311 8530 -53.3 -58.1 56 4.8 -53.4 150 7 307.0 307.1 284.2 307.2 0.05 35 300 8760 -54.9 -61.9 42 7.0 -55.0 150 9 308.0 308.0 284.6 308.1 0.03 36 298 8803 -54.9 -62.9 36 8.0 -55.0 155 9 308.6 308.6 284.8 308.7 0.03 37 286 9067 -55.1 -69.1 16 14.0 -55.3 214 4 311.9 311.9 286.0 312.0 0.01 38 276 9298 -52.5 -75.5 5 23.0 -52.8 212 5 318.9 318.9 288.3 318.9 0.00 39 260 9685 -53.3 -76.3 4 23.0 -53.5 169 9 323.2 323.2 289.8 323.2 0.00 40 250 9940 -51.9 -77.9 3 26.0 -52.2 140 12 328.9 328.9 291.4 328.9 0.00 41 230 10480 -50.3 -78.3 2 28.0 -50.7 136 15 339.3 339.3 294.1 339.3 0.00 42 218 10828 -51.1 -79.1 2 28.0 -51.5 164 14 343.3 343.3 295.1 343.3 0.00 43 209 11102 -48.9 -79.9 2 31.0 -49.4 163 13 350.9 350.9 296.8 350.9 0.00 44 200 11390 -48.9 -79.9 2 31.0 -49.4 170 8 355.3 355.3 297.8 355.3 0.00 45 196 11523 -48.7 -80.7 1 32.0 -49.3 167 8 357.7 357.7 298.2 357.7 0.00 46 165 12649 -51.5 -82.5 1 31.0 -52.0 173 16 371.1 371.1 300.8 371.1 0.00 47 150 13270 -50.7 -81.7 1 31.0 -51.3 175 15 382.7 382.7 302.7 382.7 0.00 48 100 15930 -47.5 -81.5 1 34.0 -48.7 145 9 435.9 436.0 309.4 436.0 0.01 49 98 16063 -48.1 -82.1 1 34.0 -49.3 145 9 437.3 437.3 309.6 437.3 0.00 50 91 16552 -46.1 -82.1 1 36.0 -47.6 142 17 450.6 450.6 310.9 450.7 0.01 51 76 17733 -51.3 -84.3 1 33.0 -52.4 129 11 463.6 463.6 312.1 463.6 0.00 52 70 18270 -48.1 -83.1 1 35.0 -49.7 165 16 481.5 481.5 313.5 481.5 0.01 53 65 18759 -49.9 -83.9 1 34.0 -51.3 180 16 487.9 487.9 314.1 487.9 0.01 54 54 19982 -47.7 -82.7 1 35.0 -49.7 149 12 519.5 519.5 316.3 519.5 0.01 55 50 20490 -49.5 -83.5 1 34.0 -51.3 165 16 526.8 526.8 316.7 526.9 0.01 56 30 23810 -53.3 -85.3 1 32.0 -55.2 20 1 599.3 599.3 320.6 599.4 0.01 57 24 25241 -53.9 -85.9 1 32.0 -56.1 108 17 637.1 637.1 322.2 637.2 0.01 58 21 26104 -49.9 -84.9 1 35.0 -53.3 98 13 674.0 674.0 323.6 674.1 0.01 59 20 26420 -53.7 -85.7 1 32.0 -56.2 130 20 671.8 671.8 323.5 671.9 0.01 60 19 26750 -53.7 -85.7 1 32.0 -56.3 130 20 681.7 681.7 323.9 681.8 0.01 61 12 29739 -48.5 -85.5 1 37.0 -54.0 111 15 795.9 795.9 327.1 796.1 0.02 62 12 29739 -48.7 -83.7 1 35.0 -54.1 111 15 795.2 795.2 327.1 795.5 0.03 TRP 298 8803 -54.9 -62.9 36 8.0 -55.0 155 9 308.6 308.6 284.8 308.7 0.03 WND Sounding variables and indices 1000-500 mb thick: 5291.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.29 inches Sfc-500 mean rel hum: 59.52 % Est. max temperature: 8.75 C = 47.75 F Sfc-Lift cond lev (LCL): 909.71 mb = 765.07 m = 2510.05 ft T: -2.62 C 700-500 lapse rate: 6.27 C/km ThetaE index: 2.26 C Layer 847.0- 821.0 mb Conv cond level (CCL): 763.83 mb = 2140.91 m = 7023.90 ft Mean mixing ratio: 2.71 g/kg Conv temperature: 10.08 C = 50.14 F Cap Strength: 8.36 C Lifted Index: 11.21 C Risk: None Lifted Index @300 mb: 15.98 C Lifted Index @700 mb: 5.83 C Showalter Index: 8.22 C Risk: None Total Totals Index: 45.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.60 C Cross Totals Index: 21.00 C K Index: 11.10 Risk: None Sweat Index: 43.00 Risk: None Energy Index: 2.21 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 22.02 J/kg Max Up Vert Vel: 6.64 m/s Conv Inhibition (B-): 66283.94 J/kg Cap Strength: 10.97 C Lift Cond Lev (LCL): 865.07 mb = 1163.77 m = 3818.10 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 67 at 10 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 ---------------------------------------------------------- 0 964 306 35 2 -1.1 -1.6 | 254 9 8.4 2.4 1 928 610 105 13 -12.6 3.4 | 158 8 -3.0 7.4 2 925 633 110 13 -12.2 4.4 | 162 9 -2.7 8.5 3 893 914 45 4 -2.8 -2.8 | 259 7 6.7 1.3 4 859 1219 15 17 -4.4 -16.4 | 337 13 5.1 -12.3 5 850 1303 30 15 -7.5 -13.0 | 347 9 2.0 -8.9 6 826 1524 50 16 -12.3 -10.3 | 24 7 -2.7 -6.2 7 794 1829 50 16 -12.3 -10.3 | 24 7 -2.7 -6.2 8 764 2134 30 17 -8.5 -14.7 | 355 11 1.0 -10.6 9 735 2438 30 18 -9.0 -15.6 | 357 12 0.5 -11.5 10 706 2743 45 17 -12.0 -12.0 | 17 8 -2.5 -7.9 11 700 2813 40 17 -10.9 -13.0 | 9 9 -1.4 -8.9 12 651 3353 50 20 -15.3 -12.9 | 33 11 -5.8 -8.8 13 624 3658 40 15 -9.6 -11.5 | 1 7 -0.1 -7.4 14 599 3962 40 15 -9.6 -11.5 | 1 7 -0.1 -7.4 15 575 4267 55 17 -13.9 -9.8 | 38 7 -4.4 -5.7 16 552 4572 25 14 -5.9 -12.7 | 337 9 3.6 -8.6 17 529 4877 360 9 -0.0 -9.0 | 297 11 9.5 -4.9 18 500 5300 15 13 -3.4 -12.6 | 324 10 6.2 -8.5 19 487 5486 20 12 -4.1 -11.3 | 323 9 5.4 -7.2 20 447 6096 10 9 -1.6 -8.9 | 301 9 8.0 -4.8 21 400 6870 15 7 -1.8 -6.8 | 289 8 7.7 -2.7 22 357 7620 75 3 -2.9 -0.8 | 243 7 6.6 3.3 23 341 7925 150 1 -0.5 0.9 | 241 10 9.0 4.9 24 300 8760 150 9 -4.5 7.8 | 203 13 5.0 11.9 25 298 8803 155 9 -3.8 8.2 | 205 14 5.7 12.2 26 283 9144 230 3 2.3 1.9 | 243 13 11.8 6.0 27 250 9940 140 12 -7.7 9.2 | 188 13 1.8 13.3 28 245 10058 155 12 -5.1 10.9 | 197 16 4.4 15.0 29 234 10363 130 13 -10.0 8.4 | 178 12 -0.4 12.4 30 224 10668 145 18 -10.3 14.7 | 178 19 -0.8 18.8 31 213 10973 180 10 0.0 10.0 | 214 17 9.5 14.1 32 203 11278 140 16 -10.3 12.3 | 177 16 -0.8 16.3 33 200 11390 170 8 -1.4 7.9 | 214 14 8.1 12.0 34 194 11582 165 8 -2.1 7.7 | 212 14 7.5 11.8 35 185 11887 170 18 -3.1 17.7 | 196 23 6.4 21.8 36 177 12192 190 21 3.6 20.7 | 208 28 13.2 24.8 37 169 12497 175 16 -1.4 15.9 | 202 22 8.1 20.0 38 161 12802 170 15 -2.6 14.8 | 200 20 6.9 18.9 39 154 13106 195 12 3.1 11.6 | 219 20 12.6 15.7 40 150 13270 175 15 -1.3 14.9 | 203 21 8.2 19.0 41 147 13411 175 15 -1.3 14.9 | 203 21 8.2 19.0 42 134 14021 185 15 1.3 14.9 | 210 22 10.8 19.0 43 128 14326 200 17 5.8 16.0 | 217 25 15.3 20.1 44 116 14935 210 16 8.0 13.9 | 224 25 17.5 17.9 45 111 15240 175 11 -1.0 11.0 | 210 17 8.6 15.0 46 106 15545 210 10 5.0 8.7 | 229 19 14.5 12.7 47 100 15930 145 9 -5.2 7.4 | 201 12 4.4 11.5 48 97 16154 145 9 -5.2 7.4 | 201 12 4.4 11.5 49 88 16764 140 22 -14.1 16.9 | 168 21 -4.6 20.9 50 84 17069 180 29 0.0 29.0 | 196 34 9.5 33.1 51 80 17374 190 24 4.2 23.6 | 206 31 13.7 27.7 52 77 17678 125 10 -8.2 5.7 | 188 10 1.3 9.8 53 70 18270 165 16 -4.1 15.5 | 195 20 5.4 19.5 54 70 18288 120 15 -13.0 7.5 | 163 12 -3.5 11.6 55 67 18593 175 19 -1.7 18.9 | 199 24 7.9 23.0 56 64 18898 185 14 1.2 13.9 | 211 21 10.7 18.0 57 61 19202 180 11 0.0 11.0 | 212 18 9.5 15.1 58 58 19507 140 5 -3.2 3.8 | 219 10 6.3 7.9 59 55 19812 155 11 -4.6 10.0 | 199 15 4.9 14.0 60 53 20117 145 12 -6.9 9.8 | 191 14 2.6 13.9 61 51 20422 175 10 -0.9 10.0 | 212 16 8.6 14.0 62 50 20490 165 16 -4.1 15.5 | 195 20 5.4 19.5 63 48 20726 155 13 -5.5 11.8 | 194 16 4.0 15.9 64 46 21031 185 12 1.0 12.0 | 213 19 10.6 16.0 65 44 21336 145 13 -7.5 10.6 | 188 15 2.1 14.7 66 42 21641 155 10 -4.2 9.1 | 202 14 5.3 13.1 67 40 21946 75 10 -9.7 -2.6 | 175 1 -0.1 1.5 68 36 22555 175 17 -1.5 16.9 | 201 22 8.0 21.0 69 35 22860 190 11 1.9 10.8 | 217 19 11.4 14.9 70 33 23165 100 10 -9.8 1.7 | 177 6 -0.3 5.8 71 32 23470 120 11 -9.5 5.5 | 180 10 -0.0 9.6 72 30 23810 20 1 -0.3 -0.9 | 251 10 9.2 3.1 73 29 24079 0 0 -0.0 -0.0 | 247 10 9.5 4.1 74 25 24994 100 10 -9.8 1.7 | 177 6 -0.3 5.8 75 24 25298 110 18 -16.9 6.2 | 144 13 -7.4 10.2 76 22 25908 140 13 -8.4 10.0 | 185 14 1.2 14.0 77 21 26213 75 13 -12.6 -3.4 | 103 3 -3.0 0.7 78 20 26420 130 20 -15.3 12.9 | 161 18 -5.8 16.9 79 17 26822 130 20 -15.3 12.9 | 161 18 -5.8 16.9 80 14 27432 115 8 -7.3 3.4 | 197 8 2.3 7.5 81 11 28042 110 17 -16.0 5.8 | 147 12 -6.5 9.9 82 10 28346 90 27 -27.0 0.0 | 103 18 -17.5 4.1 83 9 28651 120 19 -16.5 9.5 | 153 15 -6.9 13.6 84 8 28956 100 12 -11.8 2.1 | 160 7 -2.3 6.2 85 6 29870 115 11 -10.0 4.6 | 177 9 -0.4 8.7 86 5 30175 135 14 -9.9 9.9 | 178 14 -0.4 14.0 Wind Parameters Mean winds (0-6000m): 36.8 at 13.8 knts Storm direction: 66.8 at 10.4 knts Shear (0-3000m) pos: 2.9 neg: 2.7 tot: 5.6 10-3/s Storm rel Dir Shear (0-3000m): 137.7 deg Storm rel helicity (0-3000m) pos: 57.2 neg: -17.3 tot: 39.9 m^2/s^2 ave: 13.3 10^-3 m/s^2 rel: 0.29 Storm rel vorticity (0-3000m) horiz: 11.2 stream: 3.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.12 Bulk Shear: 19.60 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 97 9 190 5| 6.1 0.0 6.1| 5.7 -6.0 -0.4 -0.7 -0.05| 23.8 -1.2 1000 59 10 302 2| 3.1 5.4 8.4| 28.7 -6.0 22.6 22.6 0.26| 23.0 6.0 1500 52 12 354 3| 3.7 3.6 7.2| 38.7 -6.0 32.6 21.8 0.33| 17.2 5.7 2000 47 13 359 5| 2.8 4.0 6.8| 39.2 -15.5 23.7 11.8 0.22| 14.5 3.2 2500 44 14 1 6| 2.8 3.2 6.0| 47.9 -17.3 30.6 12.2 0.25| 12.7 3.1 3000 44 15 6 6| 2.9 2.7 5.6| 57.2 -17.3 39.9 13.3 0.29| 11.2 3.2 4000 44 15 9 7| 2.7 2.1 4.7| 64.1 -28.2 35.9 9.0 0.23| 9.6 2.3 5000 40 15 359 7| 2.3 2.5 4.8| 77.0 -60.4 16.6 3.3 0.09| 9.7 0.9 6000 37 14 350 7| 1.9 2.0 4.0| 77.0 -70.4 6.6 1.1 0.04| 8.5 0.4 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250416.12.gif