UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for CYAH... Searching the city database file for: CYAH ... Date:0000Z 18 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 121 SFC 977 306 -5.5 -9.9 71 4.4 -6.8 275 7 269.4 269.7 267.7 274.5 1.84 2 925 729 -10.1 -12.0 86 1.9 -10.6 285 20 269.0 269.3 267.0 273.5 1.64 3 898 956 -12.3 -12.4 99 0.1 -12.3 291 20 269.0 269.3 267.0 273.5 1.64 4 880 1111 -12.5 -12.5 100 0.0 -12.5 314 22 270.4 270.6 268.0 275.0 1.66 5 864 1251 -11.7 -11.9 98 0.2 -11.8 331 24 272.6 272.9 269.7 277.6 1.77 6 850 1376 -12.5 -12.8 98 0.3 -12.6 335 26 273.1 273.3 269.8 277.8 1.68 7 844 1430 -12.9 -13.2 98 0.3 -13.0 335 26 273.2 273.5 269.8 277.8 1.64 8 842 1448 -12.7 -13.0 98 0.3 -12.8 335 26 273.6 273.9 270.1 278.3 1.67 9 840 1467 -8.7 -9.8 92 1.1 -9.1 335 27 278.0 278.3 273.5 284.1 2.16 10 838 1485 -8.3 -9.8 89 1.5 -8.8 335 27 278.6 278.9 273.9 284.7 2.16 11 781 2032 -8.9 -13.9 67 5.0 -10.3 327 24 283.6 283.9 275.9 288.5 1.67 12 756 2284 -8.5 -23.5 29 15.0 -11.8 330 24 286.7 286.8 276.2 289.0 0.76 13 736 2492 -9.7 -21.7 37 12.0 -12.5 331 25 287.6 287.7 276.9 290.4 0.91 14 700 2877 -12.9 -19.9 56 7.0 -14.5 325 25 288.2 288.4 277.4 291.6 1.12 15 697 2910 -13.1 -20.1 56 7.0 -14.7 325 25 288.3 288.5 277.5 291.7 1.11 16 683 3064 -14.1 -25.1 39 11.0 -16.3 326 26 288.9 289.0 277.2 291.2 0.73 17 670 3210 -15.1 -22.1 55 7.0 -16.6 327 28 289.4 289.5 277.8 292.4 0.97 18 650 3439 -15.3 -25.3 42 10.0 -17.3 329 29 291.7 291.8 278.6 294.0 0.75 19 572 4400 -18.5 -52.5 3 34.0 -21.5 330 39 298.8 298.8 280.8 299.0 0.05 20 500 5390 -26.1 -53.1 6 27.0 -28.0 330 52 301.2 301.2 281.9 301.4 0.06 21 400 6960 -39.1 -58.1 12 19.0 -39.8 320 51 304.2 304.2 283.1 304.3 0.04 22 383 7255 -41.9 -58.9 14 17.0 -42.4 324 50 304.3 304.3 283.2 304.4 0.04 23 331 8228 -48.3 -64.3 14 16.0 -48.6 312 38 308.5 308.5 284.8 308.6 0.02 24 300 8870 -51.5 -68.5 11 17.0 -51.7 320 36 312.8 312.8 286.3 312.8 0.01 25 261 9765 -55.5 -72.5 10 17.0 -55.7 300 36 319.6 319.6 288.6 319.6 0.01 26 254 9939 -54.7 -73.7 8 19.0 -54.9 309 33 323.3 323.3 289.8 323.3 0.01 27 250 10040 -55.3 -74.3 8 19.0 -55.5 315 32 323.9 323.9 289.9 323.9 0.01 28 239 10326 -56.3 -75.3 7 19.0 -56.5 304 36 326.5 326.5 290.7 326.6 0.01 29 235 10434 -53.9 -77.9 4 24.0 -54.2 306 35 331.8 331.8 292.2 331.8 0.00 30 229 10600 -53.5 -79.5 3 26.0 -53.8 309 34 334.8 334.8 293.0 334.8 0.00 31 214 11035 -54.3 -81.3 2 27.0 -54.6 318 29 340.1 340.1 294.4 340.1 0.00 32 200 11470 -52.1 -82.1 2 30.0 -52.5 305 29 350.3 350.3 296.7 350.3 0.00 33 193 11701 -51.1 -82.1 1 31.0 -51.5 309 27 355.5 355.5 297.8 355.5 0.00 34 177 12260 -53.1 -83.1 1 30.0 -53.5 323 19 361.1 361.1 298.9 361.1 0.00 35 161 12872 -51.7 -82.7 1 31.0 -52.2 310 17 373.4 373.4 301.1 373.4 0.00 36 150 13330 -52.1 -83.1 1 31.0 -52.6 320 13 380.3 380.3 302.3 380.3 0.00 37 144 13593 -52.9 -82.9 1 30.0 -53.4 317 13 383.4 383.4 302.8 383.4 0.00 38 134 14059 -49.9 -82.9 1 33.0 -50.6 313 14 396.7 396.7 304.8 396.7 0.00 39 121 14724 -50.3 -83.3 1 33.0 -51.1 331 9 407.7 407.7 306.2 407.7 0.00 40 115 15056 -48.9 -82.9 1 34.0 -49.8 301 7 416.3 416.3 307.3 416.3 0.00 41 103 15777 -50.1 -83.1 1 33.0 -51.0 288 9 427.3 427.3 308.6 427.3 0.00 42 100 15970 -48.9 -82.9 1 34.0 -50.0 290 6 433.2 433.2 309.2 433.3 0.00 43 94 16377 -49.5 -83.5 1 34.0 -50.5 266 8 439.8 439.8 309.8 439.8 0.00 44 92 16518 -48.1 -83.1 1 35.0 -49.3 251 10 445.3 445.3 310.4 445.3 0.00 45 86 16961 -50.9 -83.9 1 33.0 -51.9 238 12 448.3 448.3 310.7 448.3 0.00 46 70 18310 -48.5 -83.5 1 35.0 -50.0 210 2 480.6 480.6 313.5 480.7 0.01 47 67 18599 -46.9 -82.9 1 36.0 -48.7 222 2 490.2 490.2 314.2 490.2 0.01 48 50 20520 -50.3 -84.3 1 34.0 -52.0 105 5 524.9 524.9 316.6 525.0 0.01 49 34 23029 -52.7 -85.7 1 33.0 -54.5 85 12 579.8 579.8 319.6 579.9 0.01 50 30 23840 -51.7 -85.7 1 34.0 -53.9 85 13 603.7 603.7 320.7 603.8 0.01 51 20 26480 -49.7 -85.7 1 36.0 -53.3 120 11 684.0 684.1 323.9 684.1 0.01 52 13 29307 -48.5 -85.5 1 37.0 -53.7 45 13 777.9 777.9 326.7 778.1 0.02 TRP 261 9765 -55.5 -72.5 10 17.0 -55.7 300 36 319.6 319.6 288.6 319.6 0.01 WND Sounding variables and indices 1000-500 mb thick: 5269.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.21 inches Sfc-500 mean rel hum: 46.57 % Est. max temperature: 4.51 C = 40.12 F Sfc-Lift cond lev (LCL): 911.17 mb = 844.59 m = 2770.93 ft T: -11.22 C 700-500 lapse rate: 5.25 C/km ThetaE index: 0.98 C Layer 925.0- 898.0 mb Conv cond level (CCL): 902.32 mb = 919.39 m = 3016.32 ft Mean mixing ratio: 1.70 g/kg Conv temperature: -5.94 C = 21.31 F Cap Strength: 21.68 C Lifted Index: 22.63 C Risk: None Lifted Index @300 mb: 27.52 C Lifted Index @700 mb: 14.41 C Showalter Index: 19.58 C Risk: None Total Totals Index: 26.90 C Risk: None Vertical Totals Index: 13.60 C Cross Totals Index: 13.30 C K Index: -6.20 Risk: None Sweat Index: 104.00 Risk: None Energy Index: 5.13 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.45 J/kg Max Up Vert Vel: 2.63 m/s Conv Inhibition (B-): 66918.62 J/kg Cap Strength: 22.49 C Lift Cond Lev (LCL): 898.14 mb = 955.05 m = 3133.32 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 356 at 25 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 ---------------------------------------------------------- 0 977 306 275 7 7.0 -0.6 | 192 25 5.3 24.1 1 939 610 275 18 17.9 -1.6 | 215 28 16.2 23.2 2 925 729 285 20 19.3 -5.2 | 222 26 17.6 19.5 3 903 914 285 19 18.4 -4.9 | 220 26 16.6 19.8 4 868 1219 330 23 11.5 -19.9 | 244 11 9.8 4.8 5 850 1376 335 26 11.0 -23.6 | 263 9 9.3 1.2 6 834 1524 335 27 11.4 -24.5 | 268 10 9.7 0.3 7 802 1829 320 25 16.1 -19.2 | 249 15 14.4 5.6 8 771 2134 330 24 12.0 -20.8 | 249 11 10.3 3.9 9 741 2438 330 25 12.5 -21.7 | 254 11 10.8 3.1 10 712 2743 335 25 10.6 -22.7 | 257 9 8.8 2.1 11 700 2877 325 25 14.3 -20.5 | 251 13 12.6 4.2 12 631 3658 330 31 15.5 -26.8 | 279 14 13.8 -2.1 13 605 3962 325 27 15.5 -22.1 | 259 14 13.8 2.6 14 581 4267 330 37 18.5 -32.0 | 294 18 16.8 -7.3 15 536 4877 330 46 23.0 -39.8 | 305 26 21.3 -15.1 16 500 5390 330 52 26.0 -45.0 | 310 32 24.3 -20.3 17 493 5486 330 53 26.5 -45.9 | 311 33 24.8 -21.2 18 452 6096 325 52 29.8 -42.6 | 302 33 28.1 -17.9 19 400 6960 320 51 32.8 -39.1 | 295 34 31.1 -14.3 20 379 7315 325 50 28.7 -41.0 | 301 31 27.0 -16.2 21 362 7620 320 37 23.8 -28.3 | 279 22 22.1 -3.6 22 346 7925 310 35 26.8 -22.5 | 265 25 25.1 2.2 23 301 8839 315 45 31.8 -31.8 | 283 31 30.1 -7.1 24 300 8870 320 36 23.1 -27.6 | 278 22 21.4 -2.9 25 287 9144 315 33 23.3 -23.3 | 266 22 21.6 1.4 26 274 9449 325 26 14.9 -21.3 | 255 14 13.2 3.4 27 261 9765 300 36 31.2 -18.0 | 257 30 29.5 6.7 28 250 10040 315 32 22.6 -22.6 | 264 21 20.9 2.1 29 249 10058 300 37 32.0 -18.5 | 258 31 30.3 6.2 30 227 10668 310 34 26.0 -21.9 | 263 24 24.3 2.9 31 216 10973 320 29 18.6 -22.2 | 262 17 16.9 2.5 32 200 11470 305 29 23.8 -16.6 | 250 23 22.0 8.1 33 197 11582 305 29 23.8 -16.6 | 250 23 22.0 8.1 34 179 12192 325 19 10.9 -15.6 | 225 13 9.2 9.2 35 163 12802 305 17 13.9 -9.8 | 219 19 12.2 15.0 36 155 13106 325 19 10.9 -15.6 | 225 13 9.2 9.2 37 150 13330 320 13 8.4 -10.0 | 204 16 6.6 14.8 38 129 14326 310 14 10.7 -9.0 | 210 18 9.0 15.7 39 123 14630 340 10 3.4 -9.4 | 186 15 1.7 15.3 40 112 15240 285 6 5.8 -1.6 | 190 24 4.1 23.2 41 107 15545 285 13 12.6 -3.4 | 207 24 10.8 21.4 42 100 15970 290 6 5.6 -2.1 | 190 23 3.9 22.7 43 97 16154 290 6 5.6 -2.1 | 190 23 3.9 22.7 44 89 16764 225 12 8.5 8.5 | 192 34 6.8 33.2 45 85 17069 245 12 10.9 5.1 | 197 31 9.2 29.8 46 81 17374 265 15 14.9 1.3 | 207 29 13.2 26.0 47 77 17678 275 12 12.0 -1.0 | 203 26 10.2 23.7 48 70 18310 210 2 1.0 1.7 | 178 26 -0.7 26.5 49 51 20422 300 1 0.9 -0.5 | 178 24 -0.9 24.2 50 50 20520 105 5 -4.8 1.3 | 166 27 -6.5 26.0 51 44 21336 90 8 -8.0 0.0 | 159 27 -9.7 24.7 52 42 21641 90 13 -13.0 0.0 | 149 29 -14.7 24.7 53 40 21946 110 14 -13.2 4.8 | 153 33 -14.9 29.5 54 38 22250 95 11 -11.0 1.0 | 154 29 -12.7 25.7 55 37 22555 105 10 -9.7 2.6 | 157 30 -11.4 27.3 56 35 22860 60 10 -8.7 -5.0 | 152 22 -10.4 19.7 57 33 23165 105 13 -12.6 3.4 | 153 32 -14.3 28.1 58 32 23470 75 13 -12.6 -3.4 | 146 26 -14.3 21.4 59 30 23774 125 12 -9.8 6.9 | 160 34 -11.5 31.6 60 30 23840 85 13 -13.0 -1.1 | 148 28 -14.7 23.6 61 29 24079 125 12 -9.8 6.9 | 160 34 -11.5 31.6 62 28 24384 105 17 -16.4 4.4 | 148 34 -18.1 29.1 63 26 24689 160 16 -5.5 15.0 | 170 40 -7.2 39.8 64 25 24994 165 15 -3.9 14.5 | 172 40 -5.6 39.2 65 24 25298 140 6 -3.9 4.6 | 169 30 -5.6 29.3 66 23 25603 100 14 -13.8 2.4 | 150 31 -15.5 27.2 67 20 26480 120 11 -9.5 5.5 | 160 32 -11.2 30.2 68 20 26518 120 21 -18.2 10.5 | 151 40 -19.9 35.2 69 18 26822 130 14 -10.7 9.0 | 160 36 -12.4 33.7 70 14 27432 70 6 -5.6 -2.1 | 162 24 -7.4 22.7 71 13 27737 40 15 -9.6 -11.5 | 139 17 -11.4 13.2 72 11 28042 40 16 -10.3 -12.3 | 136 17 -12.0 12.5 73 10 28346 130 17 -13.0 10.9 | 158 39 -14.7 35.7 74 9 28651 140 24 -15.4 18.4 | 158 46 -17.1 43.1 75 8 28956 150 17 -8.5 14.7 | 165 41 -10.2 39.4 76 7 29261 135 15 -10.6 10.6 | 161 37 -12.3 35.3 77 6 29870 145 13 -7.5 10.6 | 165 37 -9.2 35.4 Wind Parameters Mean winds (0-6000m): 326.0 at 33.0 knts Storm direction: 356.0 at 24.8 knts Shear (0-3000m) pos: 4.0 neg: 1.2 tot: 5.3 10-3/s Storm rel Dir Shear (0-3000m): 74.3 deg Storm rel helicity (0-3000m) pos: 158.6 neg: -18.9 tot: 139.7 m^2/s^2 ave: 46.6 10^-3 m/s^2 rel: 0.43 Storm rel vorticity (0-3000m) horiz: 9.8 stream: 4.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.04 Bulk Shear: 85.19 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 ------------------------------------------------------------------------------- 500 279 15 211 26| 13.1 0.0 13.1| 92.6 0.0 92.6 185.1 0.90| 15.1 13.7 1000 296 18 221 22| 11.2 0.0 11.2|136.8 -3.3 133.4 133.4 0.66| 17.5 11.5 1500 311 21 232 18| 7.5 1.7 9.2|142.8 -15.7 127.1 84.8 0.49| 14.8 7.2 2000 316 22 236 16| 5.9 1.3 7.2|144.6 -16.6 128.0 64.0 0.45| 12.2 5.5 2500 320 22 239 15| 4.8 1.0 5.9|147.0 -17.6 129.3 51.7 0.42| 10.6 4.5 3000 321 23 242 15| 4.0 1.2 5.3|158.6 -18.9 139.7 46.6 0.43| 9.8 4.2 4000 323 25 250 14| 4.1 1.0 5.1|204.9 -31.5 173.4 43.3 0.44| 9.4 4.2 5000 326 29 267 15| 3.3 1.9 5.2|243.6 -31.5 212.1 42.4 0.45| 8.9 4.0 6000 326 33 279 17| 2.7 1.9 4.6|248.0 -80.4 167.6 27.9 0.36| 8.1 2.9 Wrote GIF file: /home/apache/climate/data/raob//CYAH/skewt/CYAH.skewt.20250418.00.gif