UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120800.upa.cvt Date: 0000Z 8 DEC 25 Searching for CYJT... Searching the city database file for: CYJT ... Date:0000Z 8 DEC 25 Station: CYJT WMO ident: 71815 Latitude: 48.57 Longitude: -58.57 Elevation: 57.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1003 57 -2.9 -7.1 73 4.2 -4.3 275 10 270.0 270.4 268.7 276.1 2.23 1 1000 77 -2.7 -7.4 70 4.7 -4.2 275 16 270.5 270.8 269.0 276.4 2.19 2 925 688 -8.5 -9.2 95 0.7 -8.7 270 21 270.6 271.0 268.8 276.3 2.06 3 918 747 -9.1 -9.1 100 0.0 -9.1 271 22 270.6 270.9 268.8 276.3 2.09 4 882 1055 -11.7 -11.7 100 0.0 -11.7 275 27 271.0 271.3 268.6 275.9 1.77 5 880 1072 -11.9 -12.9 92 1.0 -12.2 275 28 271.0 271.2 268.3 275.5 1.61 6 875 1116 -12.9 -25.9 33 13.0 -15.0 275 28 270.4 270.5 266.0 271.9 0.53 7 867 1186 -11.9 -31.9 17 20.0 -14.7 275 29 272.1 272.2 266.7 273.1 0.30 8 850 1338 -11.3 -35.3 12 24.0 -14.5 270 29 274.3 274.3 268.0 275.0 0.22 9 848 1356 -11.3 -36.3 11 25.0 -14.6 270 29 274.5 274.5 268.1 275.1 0.20 10 730 2491 -16.9 -49.9 4 33.0 -19.7 265 35 280.4 280.4 271.5 280.6 0.05 11 710 2700 -15.1 -43.1 7 28.0 -18.2 265 41 284.6 284.6 274.0 285.0 0.12 12 700 2807 -15.9 -37.9 13 22.0 -18.6 260 42 284.9 284.9 274.3 285.6 0.21 13 567 4362 -25.7 -36.7 35 11.0 -26.9 270 50 291.0 291.1 277.7 292.0 0.29 14 562 4426 -25.9 -39.9 26 14.0 -27.2 270 52 291.5 291.6 277.8 292.3 0.21 15 529 4861 -29.7 -40.7 34 11.0 -30.6 265 55 292.1 292.1 278.0 292.8 0.21 16 503 5218 -32.3 -45.3 26 13.0 -33.1 256 60 293.2 293.2 278.4 293.6 0.13 17 500 5260 -32.7 -45.7 26 13.0 -33.6 255 61 293.2 293.2 278.4 293.6 0.13 18 462 5812 -37.9 -44.9 48 7.0 -38.3 255 60 293.4 293.4 278.6 293.9 0.15 19 402 6757 -45.3 -50.1 58 4.8 -45.4 265 70 295.7 295.7 279.6 296.0 0.10 20 400 6790 -45.5 -50.5 57 5.0 -45.7 265 70 295.9 295.9 279.6 296.2 0.09 21 391 6941 -47.1 -50.9 65 3.8 -47.2 264 72 295.7 295.7 279.6 296.0 0.09 22 372 7269 -49.7 -56.7 44 7.0 -49.8 262 75 296.5 296.5 279.8 296.7 0.05 23 358 7518 -51.3 -56.0 57 4.7 -51.4 261 78 297.6 297.6 280.4 297.8 0.05 24 355 7573 -50.9 -60.9 30 10.0 -51.1 260 78 298.9 298.9 280.9 299.0 0.03 25 350 7665 -51.3 -64.3 20 13.0 -51.5 261 79 299.5 299.5 281.1 299.6 0.02 26 300 8660 -53.9 -69.9 12 16.0 -54.1 260 82 309.4 309.4 285.1 309.4 0.01 27 285 8988 -55.7 -68.7 18 13.0 -55.8 250 83 311.4 311.4 285.8 311.4 0.01 28 276 9192 -55.0 -72.4 10 17.4 -55.2 255 86 315.3 315.3 287.2 315.3 0.01 29 265 9453 -54.1 -77.1 4 23.0 -54.3 255 85 320.3 320.3 288.8 320.3 0.00 30 262 9526 -51.7 -78.7 3 27.0 -52.0 258 79 324.8 324.8 290.2 324.8 0.00 31 250 9830 -51.7 -78.7 3 27.0 -52.0 265 60 329.2 329.2 291.5 329.2 0.00 32 247 9909 -51.3 -79.3 2 28.0 -51.7 265 59 330.9 330.9 292.0 331.0 0.00 33 200 11290 -50.1 -81.1 1 31.0 -50.6 260 61 353.4 353.4 297.4 353.4 0.00 34 195 11455 -49.3 -80.3 1 31.0 -49.8 259 62 357.3 357.3 298.2 357.3 0.00 35 183 11869 -50.7 -80.7 2 30.0 -51.2 258 64 361.6 361.6 299.0 361.6 0.00 36 168 12427 -48.1 -81.1 1 33.0 -48.8 256 67 374.8 374.8 301.4 374.8 0.00 37 150 13170 -49.1 -81.1 1 32.0 -49.8 245 56 385.5 385.5 303.1 385.5 0.00 38 100 15790 -55.1 -84.1 2 29.0 -55.6 250 59 421.3 421.3 307.9 421.3 0.00 39 95 16118 -55.7 -84.7 1 29.0 -56.2 251 60 426.3 426.3 308.4 426.3 0.00 40 89 16537 -53.7 -84.7 1 31.0 -54.4 254 73 438.3 438.3 309.7 438.4 0.00 41 71 17980 -57.5 -86.5 1 29.0 -58.0 253 55 459.5 459.5 311.7 459.5 0.00 42 70 18070 -56.3 -86.3 1 30.0 -56.9 255 55 463.9 463.9 312.1 464.0 0.00 43 63 18742 -54.9 -85.9 1 31.0 -55.8 257 50 481.2 481.2 313.5 481.2 0.00 44 58 19266 -59.1 -87.1 1 28.0 -59.7 254 51 483.3 483.3 313.7 483.3 0.00 45 50 20200 -57.9 -87.9 1 30.0 -58.6 235 43 507.0 507.0 315.4 507.1 0.00 46 42 21294 -56.5 -86.5 1 30.0 -57.5 253 45 536.4 536.4 317.3 536.5 0.01 47 40 21603 -52.9 -85.9 1 33.0 -54.5 264 27 553.0 553.0 318.3 553.0 0.01 48 30 23430 -57.1 -88.1 1 31.0 -58.4 255 15 589.0 589.0 320.1 589.0 0.01 49 29 23646 -55.7 -87.7 1 32.0 -57.2 275 20 598.6 598.6 320.6 598.6 0.01 50 25 24592 -56.7 -86.7 1 30.0 -58.2 244 19 621.7 621.7 321.6 621.7 0.01 51 21 25714 -51.7 -84.7 1 33.0 -54.6 262 8 668.5 668.5 323.4 668.6 0.01 52 20 26030 -53.1 -85.1 1 32.0 -55.8 170 4 673.6 673.6 323.6 673.7 0.01 53 10 30460 -55.7 -86.7 1 31.0 -59.2 315 29 811.6 811.6 327.5 811.8 0.02 54 8.6 31427 -52.7 -85.7 1 33.0 -57.6 859.1 859.1 328.6 859.4 0.03 55 7.7 32136 -55.9 -86.9 1 31.0 -60.0 873.8 873.8 328.9 874.1 0.03 56 5.0 34914 -51.1 -85.1 1 34.0 -58.6 1010.5 1010.6 331.4 1011.1 0.06 57 4.8 35179 -51.5 -85.5 1 34.0 -59.0 1020.5 1020.6 331.5 1021.2 0.05 TRP 285 8988 -55.7 -68.7 18 13.0 -55.8 250 83 311.4 311.4 285.8 311.4 0.01 WND 276 9192 -55.0 -72.4 10 17.4 -55.2 255 86 315.3 315.3 287.2 315.3 0.01 Sounding variables and indices 1000-500 mb thick: 5183.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 32.60 % Est. max temperature: 1.00 C = 33.81 F Sfc-Lift cond lev (LCL): 938.81 mb = 571.89 m = 1876.25 ft T: -7.40 C 700-500 lapse rate: 6.85 C/km ThetaE index: 4.38 C Layer 882.0- 867.0 mb Conv cond level (CCL): 919.20 mb = 736.72 m = 2417.02 ft Mean mixing ratio: 2.10 g/kg Conv temperature: -2.32 C = 27.82 F Cap Strength: 14.15 C Lifted Index: 14.13 C Risk: None Lifted Index @300 mb: 23.42 C Lifted Index @700 mb: 9.57 C Showalter Index: 15.15 C Risk: None Total Totals Index: 18.80 C Risk: None Vertical Totals Index: 21.40 C Cross Totals Index: -2.60 C K Index: -35.90 Risk: None Sweat Index: 119.00 Risk: None Energy Index: 3.96 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.17 J/kg Max Up Vert Vel: 2.52 m/s Conv Inhibition (B-): 0.09 J/kg Cap Strength: 13.99 C Lift Cond Lev (LCL): 919.56 mb = 733.68 m = 2407.07 ft Lev Free Conv (LFC): 914.56 mb = 775.76 m = 2545.11 ft Equ Level (EL): 864.56 mb = 1207.75 m = 3962.38 ft B at Equ Level: 1.01 J/kg Max Parcel Lev (MPL): 854.56 mb = 1296.95 m = 4255.04 ft Wind level data Storm motion: 293 at 30 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 1003 57 275 10 10.0 -0.9 | 121 21 -18.0 11.0 1 1000 77 275 16 15.9 -1.4 | 131 16 -12.0 10.4 2 971 305 280 22 21.7 -3.8 | 142 10 -6.3 8.0 3 934 610 275 20 19.9 -1.7 | 142 13 -8.0 10.1 4 925 688 270 21 21.0 -0.0 | 150 14 -6.9 11.8 5 898 914 275 25 24.9 -2.2 | 163 10 -3.0 9.7 6 863 1219 275 30 29.9 -2.6 | 192 9 1.9 9.2 7 850 1338 270 29 29.0 -0.0 | 185 12 1.1 11.8 8 797 1829 260 28 27.6 4.9 | 179 17 -0.4 16.7 9 765 2134 265 30 29.9 2.6 | 188 15 1.9 14.5 10 735 2438 265 34 33.9 3.0 | 202 16 5.9 14.8 11 706 2743 265 42 41.8 3.7 | 222 21 13.9 15.5 12 700 2807 260 42 41.4 7.3 | 215 23 13.4 19.1 13 650 3353 255 41 39.6 10.6 | 207 25 11.7 22.5 14 623 3658 260 37 36.4 6.4 | 205 20 8.5 18.3 15 573 4267 270 48 48.0 -0.0 | 239 23 20.1 11.8 16 549 4572 270 57 57.0 -0.0 | 248 31 29.1 11.8 17 527 4877 265 55 54.8 4.8 | 238 32 26.9 16.6 18 500 5260 255 61 58.9 15.8 | 228 42 31.0 27.6 19 484 5486 255 59 57.0 15.3 | 227 40 29.1 27.1 20 443 6096 255 61 58.9 15.8 | 228 42 31.0 27.6 21 400 6790 265 70 69.7 6.1 | 247 45 41.8 17.9 22 352 7620 260 79 77.8 13.7 | 243 56 49.9 25.6 23 321 8230 270 86 86.0 -0.0 | 258 59 58.1 11.8 24 300 8660 260 82 80.8 14.2 | 244 59 52.8 26.1 25 285 8988 250 83 78.0 28.4 | 231 64 50.1 40.2 26 278 9144 250 83 78.0 28.4 | 231 64 50.1 40.2 27 276 9192 255 86 83.1 22.3 | 238 65 55.1 34.1 28 265 9449 255 86 83.1 22.3 | 238 65 55.1 34.1 29 253 9754 265 59 58.8 5.1 | 241 35 30.8 17.0 30 250 9830 265 60 59.8 5.2 | 242 36 31.8 17.1 31 230 10363 265 50 49.8 4.4 | 233 27 21.9 16.2 32 220 10668 260 57 56.1 9.9 | 232 36 28.2 21.7 33 200 11290 260 61 60.1 10.6 | 235 39 32.1 22.4 34 159 12802 255 69 66.6 17.9 | 233 49 38.7 29.7 35 150 13170 245 56 50.8 23.7 | 213 42 22.8 35.5 36 145 13411 245 56 50.8 23.7 | 213 42 22.8 35.5 37 125 14326 260 71 69.9 12.3 | 240 48 42.0 24.2 38 114 14935 255 65 62.8 16.8 | 231 45 34.8 28.7 39 109 15240 255 48 46.4 12.4 | 217 30 18.4 24.3 40 100 15790 250 59 55.4 20.2 | 221 42 27.5 32.0 41 99 15850 255 70 67.6 18.1 | 233 50 39.7 30.0 42 94 16154 250 59 55.4 20.2 | 221 42 27.5 32.0 43 90 16459 255 74 71.5 19.2 | 235 53 43.5 31.0 44 74 17678 245 54 48.9 22.8 | 211 41 21.0 34.7 45 70 18070 255 55 53.1 14.2 | 224 36 25.2 26.1 46 68 18288 250 67 63.0 22.9 | 225 49 35.0 34.8 47 61 18898 260 44 43.3 7.6 | 218 25 15.4 19.5 48 56 19507 250 55 51.7 18.8 | 218 39 23.7 30.7 49 53 19812 255 35 33.8 9.1 | 196 22 5.9 20.9 50 51 20117 235 35 28.7 20.1 | 181 32 0.7 31.9 51 50 20200 235 43 35.2 24.7 | 191 37 7.3 36.5 52 48 20422 240 45 39.0 22.5 | 198 36 11.0 34.3 53 46 20726 225 41 29.0 29.0 | 181 41 1.1 40.8 54 42 21336 255 45 43.5 11.6 | 213 28 15.5 23.5 55 40 21641 265 25 24.9 2.2 | 168 14 -3.0 14.0 56 36 22250 230 16 12.3 10.3 | 145 27 -15.7 22.1 57 34 22555 230 14 10.7 9.0 | 140 27 -17.2 20.8 58 33 22860 210 15 7.5 13.0 | 141 32 -20.4 24.8 59 31 23165 245 25 22.7 10.6 | 167 23 -5.3 22.4 60 30 23430 255 15 14.5 3.9 | 139 21 -13.5 15.7 61 30 23470 275 19 18.9 -1.7 | 138 14 -9.0 10.2 62 28 23774 275 20 19.9 -1.7 | 142 13 -8.0 10.1 63 27 24079 265 14 13.9 1.2 | 133 19 -14.0 13.1 64 25 24689 240 20 17.3 10.0 | 154 24 -10.6 21.8 65 22 25298 270 14 14.0 -0.0 | 130 18 -13.9 11.8 66 21 25603 295 10 9.1 -4.2 | 112 20 -18.9 7.6 67 20 26030 170 4 -0.7 3.9 | 119 33 -28.6 15.8 68 19 26518 290 2 1.9 -0.7 | 113 28 -26.1 11.2 69 17 27127 320 11 7.1 -8.4 | 99 21 -20.9 3.4 70 16 27432 310 8 6.1 -5.1 | 107 23 -21.8 6.7 71 15 28042 305 10 8.2 -5.7 | 107 21 -19.7 6.1 72 14 28346 320 14 9.0 -10.7 | 93 19 -18.9 1.1 73 13 28956 295 10 9.1 -4.2 | 112 20 -18.9 7.6 74 12 29261 340 11 3.8 -10.3 | 94 24 -24.2 1.5 75 12 29566 295 12 10.9 -5.1 | 112 18 -17.1 6.8 76 11 29870 335 11 4.6 -10.0 | 95 23 -23.3 1.9 77 10 30175 310 17 13.0 -10.9 | 93 15 -14.9 0.9 78 10 30460 315 29 20.5 -20.5 | 41 11 -7.4 -8.7 Wind Parameters Mean winds (0-6000m): 263.0 at 40.5 knts Storm direction: 293.0 at 30.3 knts Shear (0-3000m) pos: 3.1 neg: 2.9 tot: 6.0 10-3/s Storm rel Dir Shear (0-3000m): 90.1 deg Storm rel helicity (0-3000m) pos: 100.0 neg: -29.2 tot: 70.8 m^2/s^2 ave: 23.6 10^-3 m/s^2 rel: 0.40 Storm rel vorticity (0-3000m) horiz: 8.8 stream: 3.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.05 Bulk Shear: 63.57 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 ------------------------------------------------------------------------------- 500 278 20 138 12| 10.6 0.0 10.6| 22.5 -0.2 22.3 44.5 0.40| 14.0 5.7 1000 276 22 146 12| 5.3 3.6 8.9| 42.7 -0.2 42.5 42.5 0.55| 11.3 6.3 1500 274 24 159 11| 3.5 3.2 6.7| 48.4 -5.0 43.5 29.0 0.45| 9.9 4.4 2000 271 25 166 12| 2.7 2.7 5.4| 55.1 -7.8 47.3 23.6 0.41| 8.6 3.6 2500 269 27 174 12| 3.7 2.2 5.9| 84.4 -7.8 76.6 30.6 0.50| 8.5 4.3 3000 267 29 185 13| 3.1 2.9 6.0|100.0 -29.2 70.8 23.6 0.40| 8.8 3.5 4000 265 32 195 15| 2.9 2.2 5.1|146.2 -46.3 100.0 25.0 0.39| 8.6 3.4 5000 266 36 209 17| 3.6 2.5 6.2|199.5-114.4 85.1 17.0 0.29| 9.3 2.7 6000 263 40 216 21| 3.0 2.6 5.7|207.6-158.7 48.9 8.1 0.23| 8.6 2.0 Wrote GIF file: /home/apache/climate/data/raob//CYJT/skewt/CYJT.skewt.20251208.00.gif