UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122812.upa.cvt Date: 1200Z 28 DEC 25 Searching for CYCB... Searching the city database file for: CYCB ... Date:1200Z 28 DEC 25 Station: CYCB WMO ident: 71925 Latitude: 69.10 Longitude: -105.12 Elevation: 27.00 ------------------------------------------------------------------------------- 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 1029 27 -34.1 -37.0 75 2.9 -34.2 220 2 237.1 237.1 237.1 237.5 0.16 1 1023 69 -28.5 -30.9 80 2.4 -28.7 240 2 243.1 243.1 243.0 243.8 0.28 2 1019 98 -27.3 -30.2 76 2.9 -27.5 254 3 244.5 244.6 244.4 245.3 0.30 3 1000 235 -26.9 -27.7 93 0.8 -27.0 320 4 246.2 246.3 246.2 247.3 0.39 4 987 329 -27.5 -28.0 95 0.5 -27.5 300 5 246.6 246.6 246.5 247.6 0.39 5 974 424 -27.9 -29.0 90 1.1 -28.0 321 4 247.1 247.2 246.9 248.1 0.36 6 967 476 -26.7 -29.0 81 2.3 -26.9 332 3 248.8 248.9 248.4 249.8 0.36 7 963 506 -24.5 -27.1 79 2.6 -24.8 338 3 251.3 251.4 250.8 252.5 0.43 8 925 799 -25.3 -27.7 80 2.4 -25.5 325 6 253.4 253.5 252.6 254.6 0.42 9 911 909 -25.7 -28.3 79 2.6 -25.9 339 6 254.1 254.2 253.2 255.3 0.41 10 850 1408 -28.7 -30.8 82 2.1 -28.9 330 13 256.1 256.1 254.7 257.1 0.34 11 814 1717 -30.3 -31.8 87 1.5 -30.4 312 17 257.6 257.6 255.9 258.5 0.33 12 801 1831 -29.3 -33.0 70 3.7 -29.6 310 19 259.8 259.9 257.6 260.7 0.30 13 789 1939 -29.9 -35.9 56 6.0 -30.3 310 18 260.3 260.3 257.9 261.0 0.23 14 786 1966 -29.7 -33.4 70 3.7 -30.0 310 18 260.8 260.9 258.4 261.6 0.29 15 729 2500 -31.9 -36.9 61 5.0 -32.2 310 16 264.1 264.1 260.8 264.7 0.22 16 700 2786 -33.3 -37.6 65 4.3 -33.6 315 16 265.6 265.6 261.9 266.3 0.21 17 660 3198 -35.1 -38.6 70 3.5 -35.3 315 21 268.1 268.1 263.7 268.7 0.21 18 604 3811 -38.9 -41.1 80 2.2 -39.0 308 23 270.6 270.6 265.4 271.1 0.17 19 566 4255 -40.9 -44.4 69 3.5 -41.1 300 27 273.3 273.3 267.2 273.7 0.13 20 500 5090 -45.9 -48.4 76 2.5 -46.0 305 35 277.1 277.1 269.5 277.4 0.09 21 485 5291 -47.3 -49.0 83 1.7 -47.3 305 35 277.8 277.8 269.9 278.1 0.09 22 476 5414 -48.1 -51.9 65 3.8 -48.2 305 36 278.3 278.3 270.2 278.5 0.07 23 464 5581 -49.3 -50.6 86 1.3 -49.3 305 36 278.8 278.8 270.6 279.1 0.08 24 454 5723 -50.3 -53.6 68 3.3 -50.4 305 36 279.3 279.3 270.8 279.5 0.06 25 450 5781 -50.5 -55.5 55 5.0 -50.6 305 36 279.8 279.8 271.1 279.9 0.05 26 426 6135 -52.3 -60.3 38 8.0 -52.4 305 37 281.9 281.9 272.3 282.0 0.03 27 410 6382 -53.1 -60.1 42 7.0 -53.2 305 38 284.0 284.0 273.5 284.1 0.03 28 400 6540 -53.7 -61.7 37 8.0 -53.8 305 38 285.2 285.2 274.2 285.3 0.02 29 326 7838 -58.7 -66.7 35 8.0 -58.7 300 28 295.5 295.5 279.3 295.5 0.01 30 300 8360 -58.5 -68.5 27 10.0 -58.6 305 27 302.9 302.9 282.5 302.9 0.01 31 250 9520 -55.7 -73.7 9 18.0 -55.9 305 22 323.3 323.3 289.8 323.3 0.01 32 244 9675 -54.7 -74.7 7 20.0 -54.9 305 22 327.0 327.0 290.9 327.0 0.01 33 202 10877 -56.1 -81.1 3 25.0 -56.3 294 20 342.9 342.9 295.0 343.0 0.00 34 200 10940 -56.1 -81.1 3 25.0 -56.3 295 21 343.9 343.9 295.3 343.9 0.00 35 177 11721 -54.5 -81.5 2 27.0 -54.8 290 23 358.8 358.8 298.5 358.8 0.00 36 150 12780 -55.9 -82.9 2 27.0 -56.2 300 18 373.8 373.8 301.2 373.8 0.00 37 125 13932 -56.9 -83.9 2 27.0 -57.2 303 23 392.0 392.0 304.0 392.0 0.00 38 100 15330 -60.1 -86.1 2 26.0 -60.4 280 28 411.6 411.6 306.7 411.6 0.00 39 94 15717 -59.5 -85.5 2 26.0 -59.8 283 28 420.1 420.1 307.7 420.1 0.00 40 70 17540 -64.7 -87.7 3 23.0 -64.9 295 22 446.0 446.0 310.5 446.0 0.00 41 63 18181 -66.7 -88.7 3 22.0 -66.9 300 26 455.2 455.2 311.3 455.2 0.00 42 50 19580 -66.3 -89.3 3 23.0 -66.5 305 38 487.2 487.2 314.0 487.3 0.00 43 34 21901 -69.1 -91.1 3 22.0 -69.4 299 37 536.7 536.7 317.3 536.7 0.00 44 33 22079 -68.9 -90.9 3 22.0 -69.2 300 38 541.8 541.8 317.6 541.9 0.00 TRP 326 7838 -58.7 -66.7 35 8.0 -58.7 300 28 295.5 295.5 279.3 295.5 0.01 WND Sounding variables and indices 1000-500 mb thick: 4855.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.06 inches Sfc-500 mean rel hum: 74.53 % Est. max temperature: -15.91 C = 3.36 F Sfc-Lift cond lev (LCL): 979.11 mb = 386.89 m = 1269.30 ft T: -27.74 C 700-500 lapse rate: 5.47 C/km ThetaE index: 0.00 C Layer 1029.0- 0.0 mb Conv cond level (CCL): 1023.00 mb = 69.00 m = 226.38 ft Mean mixing ratio: 0.38 g/kg Conv temperature: -27.45 C = -17.41 F Cap Strength: 20.55 C Lifted Index: 22.93 C Risk: None Lifted Index @300 mb: 38.07 C Lifted Index @700 mb: 15.02 C Showalter Index: 16.48 C Risk: None Total Totals Index: 32.30 C Risk: None Vertical Totals Index: 17.20 C Cross Totals Index: 15.10 C K Index: -17.90 Risk: None Sweat Index: 61.00 Risk: None Energy Index: 4.31 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 45.64 J/kg Max Up Vert Vel: 9.55 m/s Conv Inhibition (B-): 47390.58 J/kg Cap Strength: 22.58 C Lift Cond Lev (LCL): 949.62 mb = 608.11 m = 1995.08 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 338 at 16 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 1029 27 220 2 1.3 1.5 | 164 17 -4.5 16.1 1 1000 235 320 4 2.6 -3.1 | 164 12 -3.2 11.5 2 990 305 295 5 4.5 -2.1 | 174 13 -1.3 12.5 3 950 610 360 2 -0.0 -2.0 | 155 14 -5.8 12.6 4 925 799 325 6 3.4 -4.9 | 166 10 -2.4 9.7 5 910 914 340 6 2.1 -5.6 | 157 10 -3.7 8.9 6 873 1219 350 14 2.4 -13.8 | 103 3 -3.4 0.8 7 850 1408 330 13 6.5 -11.3 | 192 3 0.7 3.3 8 836 1524 315 13 9.2 -9.2 | 212 6 3.4 5.4 9 801 1829 310 19 14.6 -12.2 | 255 9 8.8 2.4 10 767 2134 310 16 12.3 -10.3 | 236 8 6.5 4.3 11 735 2438 310 16 12.3 -10.3 | 236 8 6.5 4.3 12 704 2743 310 15 11.5 -9.6 | 229 8 5.7 4.9 13 700 2786 315 16 11.3 -11.3 | 239 6 5.5 3.3 14 644 3353 315 23 16.3 -16.3 | 279 11 10.5 -1.7 15 616 3658 310 22 16.9 -14.1 | 268 11 11.1 0.4 16 564 4267 300 27 23.4 -13.5 | 267 18 17.6 1.1 17 516 4877 300 34 29.4 -17.0 | 276 24 23.7 -2.4 18 500 5090 305 35 28.7 -20.1 | 284 24 22.9 -5.5 19 428 6096 305 37 30.3 -21.2 | 285 25 24.5 -6.6 20 400 6540 305 38 31.1 -21.8 | 286 26 25.3 -7.2 21 390 6706 305 38 31.1 -21.8 | 286 26 25.3 -7.2 22 337 7620 305 29 23.8 -16.6 | 277 18 18.0 -2.1 23 326 7838 300 28 24.2 -14.0 | 268 18 18.5 0.6 24 306 8230 295 29 26.3 -12.3 | 264 21 20.5 2.3 25 300 8360 305 27 22.1 -15.5 | 273 16 16.3 -0.9 26 278 8839 310 26 19.9 -16.7 | 279 14 14.1 -2.1 27 265 9144 300 20 17.3 -10.0 | 248 12 11.5 4.6 28 253 9449 285 21 20.3 -5.4 | 238 17 14.5 9.1 29 250 9520 305 22 18.0 -12.6 | 261 12 12.2 2.0 30 241 9754 305 22 18.0 -12.6 | 261 12 12.2 2.0 31 230 10058 290 23 21.6 -7.9 | 247 17 15.8 6.7 32 219 10363 300 17 14.7 -8.5 | 236 11 8.9 6.1 33 209 10668 290 16 15.0 -5.5 | 225 13 9.2 9.1 34 200 10940 295 21 19.0 -8.9 | 247 14 13.2 5.7 35 190 11278 295 21 19.0 -8.9 | 247 14 13.2 5.7 36 164 12192 285 25 24.1 -6.5 | 246 20 18.4 8.1 37 150 12780 300 18 15.6 -9.0 | 240 11 9.8 5.6 38 149 12802 290 21 19.7 -7.2 | 242 16 13.9 7.4 39 142 13106 305 18 14.7 -10.3 | 245 10 9.0 4.3 40 136 13411 290 20 18.8 -6.8 | 239 15 13.0 7.7 41 123 14021 305 24 19.7 -13.8 | 267 14 13.9 0.8 42 112 14630 310 15 11.5 -9.6 | 229 8 5.7 4.9 43 101 15240 275 18 17.9 -1.6 | 223 18 12.1 13.0 44 100 15330 280 28 27.6 -4.9 | 246 24 21.8 9.7 45 97 15545 280 28 27.6 -4.9 | 246 24 21.8 9.7 46 76 17069 310 28 21.4 -18.0 | 282 16 15.7 -3.4 47 70 17540 295 22 19.9 -9.3 | 250 15 14.1 5.3 48 68 17678 300 22 19.1 -11.0 | 255 14 13.3 3.6 49 59 18593 300 30 26.0 -15.0 | 271 20 20.2 -0.4 50 56 18898 290 26 24.4 -8.9 | 253 19 18.6 5.7 51 53 19202 295 42 38.1 -17.7 | 276 32 32.3 -3.2 52 50 19580 305 38 31.1 -21.8 | 286 26 25.3 -7.2 53 38 20422 295 32 29.0 -13.5 | 267 23 23.2 1.1 54 28 21336 305 45 36.9 -25.8 | 290 33 31.1 -11.2 55 26 21641 310 47 36.0 -30.2 | 297 34 30.2 -15.6 56 23 21946 310 43 32.9 -27.6 | 296 30 27.1 -13.1 57 21 22250 300 59 51.1 -29.5 | 288 48 45.3 -14.9 Wind Parameters Mean winds (0-6000m): 308.3 at 20.9 knts Storm direction: 338.3 at 15.7 knts Shear (0-3000m) pos: 2.3 neg: 1.7 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 97.0 deg Storm rel helicity (0-3000m) pos: 37.3 neg: -32.1 tot: 5.2 m^2/s^2 ave: 1.7 10^-3 m/s^2 rel: 0.13 Storm rel vorticity (0-3000m) horiz: 8.0 stream: 1.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.15 Bulk Shear: 39.62 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 ------------------------------------------------------------------------------- 500 305 4 167 13| 4.4 0.0 4.4| 10.3 -13.6 -3.3 -6.6 -0.13| 10.4 -1.3 1000 324 4 164 12| 5.2 0.0 5.2| 15.5 -20.2 -4.7 -4.7 -0.11| 9.7 -1.1 1500 333 7 163 9| 3.5 2.3 5.8| 20.1 -24.4 -4.3 -2.8 0.01| 11.1 0.1 2000 323 10 180 7| 2.6 2.8 5.4| 30.1 -28.2 1.9 1.0 0.10| 10.4 1.0 2500 319 11 192 7| 2.1 2.0 4.1| 30.1 -30.8 -0.7 -0.3 0.06| 8.6 0.5 3000 317 12 200 6| 2.3 1.7 4.0| 37.3 -32.1 5.2 1.7 0.13| 8.0 1.0 4000 315 15 226 6| 1.8 2.2 3.9| 43.5 -38.0 5.5 1.4 0.11| 7.3 0.8 5000 310 18 247 8| 1.9 2.3 4.2| 74.9 -39.1 35.8 7.2 0.17| 7.0 1.2 6000 308 21 261 11| 1.7 2.0 3.7| 85.1 -39.1 46.0 7.7 0.19| 6.1 1.1 Wrote GIF file: /home/apache/climate/data/raob//CYCB/skewt/CYCB.skewt.20251228.12.gif