UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121300.upa.cvt Date: 0000Z 13 DEC 25 Searching for CYJT... Searching the city database file for: CYJT ... Date:0000Z 13 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 ------------------------------------------------------------------------------- 0 1000 -121 SFC 978 57 -3.7 -6.7 80 3.0 -4.7 265 9 271.2 271.6 269.7 277.6 2.36 2 925 493 -7.1 -10.1 79 3.0 -8.0 250 33 272.0 272.4 269.5 277.4 1.91 3 850 1145 -12.3 -13.9 88 1.6 -12.7 250 31 273.3 273.5 269.7 277.6 1.53 4 738 2207 -20.5 -20.8 97 0.3 -20.5 275 33 275.6 275.8 270.2 278.5 0.99 5 700 2596 -23.9 -25.7 85 1.8 -24.2 275 35 276.0 276.1 269.9 278.0 0.67 6 688 2722 -24.9 -27.3 80 2.4 -25.2 275 34 276.3 276.4 269.9 278.0 0.59 7 677 2839 -25.9 -26.4 96 0.5 -26.0 275 34 276.4 276.5 270.1 278.4 0.65 8 654 3089 -28.1 -28.4 97 0.3 -28.1 275 34 276.7 276.8 270.2 278.4 0.56 9 616 3516 -32.1 -34.5 79 2.4 -32.3 275 34 276.9 276.9 269.8 277.9 0.33 10 585 3878 -34.9 -40.9 54 6.0 -35.3 280 34 277.7 277.8 270.1 278.3 0.18 11 582 3914 -34.5 -46.5 29 12.0 -35.1 281 34 278.6 278.6 270.5 278.9 0.10 12 578 3963 -34.1 -50.1 18 16.0 -34.8 282 34 279.6 279.6 271.1 279.9 0.07 13 500 4970 -38.3 -59.3 9 21.0 -38.9 300 25 286.3 286.3 274.8 286.4 0.03 14 457 5582 -41.7 -62.7 8 21.0 -42.2 297 24 289.5 289.6 276.5 289.6 0.02 15 400 6480 -43.3 -68.3 5 25.0 -43.8 280 30 298.7 298.7 280.8 298.8 0.01 16 392 6616 -43.9 -67.9 5 24.0 -44.4 277 30 299.7 299.7 281.2 299.7 0.01 17 384 6754 -43.5 -69.5 4 26.0 -44.0 275 29 302.0 302.0 282.2 302.0 0.01 18 349 7392 -45.7 -70.7 4 25.0 -46.2 265 44 307.4 307.4 284.3 307.4 0.01 19 326 7847 -44.3 -74.3 2 30.0 -44.9 277 40 315.3 315.3 287.2 315.4 0.00 20 308 8225 -46.3 -75.3 2 29.0 -46.8 260 48 317.7 317.7 288.0 317.7 0.00 21 300 8400 -45.7 -75.7 2 30.0 -46.2 275 52 320.9 320.9 289.0 321.0 0.00 22 290 8627 -45.3 -75.3 2 30.0 -45.9 273 50 324.6 324.6 290.2 324.7 0.00 23 272 9055 -46.7 -74.7 3 28.0 -47.2 266 53 328.6 328.6 291.3 328.6 0.01 24 264 9255 -44.7 -77.7 1 33.0 -45.4 261 55 334.4 334.4 292.9 334.4 0.00 25 250 9620 -45.7 -78.7 1 33.0 -46.3 250 62 338.1 338.1 293.9 338.1 0.00 26 241 9864 -46.3 -79.3 1 33.0 -46.9 254 60 340.8 340.8 294.5 340.8 0.00 27 239 9919 -45.1 -79.1 1 34.0 -45.8 255 59 343.4 343.4 295.1 343.4 0.00 28 214 10658 -44.3 -79.3 1 35.0 -45.2 260 52 355.7 355.7 297.8 355.7 0.00 29 200 11110 -45.7 -79.7 1 34.0 -46.4 250 53 360.4 360.4 298.8 360.4 0.00 30 199 11143 -45.7 -79.7 1 34.0 -46.5 250 53 360.9 360.9 298.9 360.9 0.00 31 191 11416 -45.1 -80.1 1 35.0 -46.0 247 53 366.1 366.1 299.9 366.2 0.00 32 164 12419 -50.9 -81.9 1 31.0 -51.4 241 59 372.7 372.7 301.1 372.7 0.00 33 151 12957 -50.0 -81.9 1 31.9 -50.6 245 73 383.2 383.2 302.8 383.2 0.00 34 150 13000 -49.9 -81.9 1 32.0 -50.5 245 73 384.1 384.1 302.9 384.1 0.00 35 138 13548 -47.7 -81.7 1 34.0 -48.6 246 69 397.2 397.2 304.8 397.2 0.00 36 122 14354 -51.9 -82.9 1 31.0 -52.5 248 63 403.8 403.8 305.7 403.8 0.00 37 116 14681 -51.3 -83.3 1 32.0 -52.0 249 60 410.8 410.8 306.6 410.8 0.00 38 103 15450 -53.5 -84.5 1 31.0 -54.1 242 58 420.8 420.8 307.8 420.8 0.00 39 100 15640 -53.5 -84.5 1 31.0 -54.1 240 58 424.4 424.4 308.2 424.4 0.00 40 80 17056 -58.3 -86.3 2 28.0 -58.7 243 67 442.4 442.4 310.1 442.5 0.00 41 78 17216 -56.3 -86.3 1 30.0 -56.9 243 68 449.8 449.8 310.8 449.8 0.00 42 70 17900 -57.5 -86.5 1 29.0 -58.0 245 73 461.4 461.4 311.9 461.4 0.00 43 50 20010 -61.1 -88.1 2 27.0 -61.6 245 49 499.5 499.5 314.9 499.5 0.00 44 30 23160 -64.3 -90.3 2 26.0 -64.8 235 64 569.3 569.3 319.1 569.4 0.00 45 23 24786 -66.5 -91.5 2 25.0 -67.0 251 75 607.8 607.8 321.0 607.9 0.00 46 21 25340 -66.3 -91.3 2 25.0 -66.9 253 63 624.5 624.5 321.7 624.5 0.00 47 20 25640 -61.9 -89.9 1 28.0 -63.0 255 57 646.7 646.7 322.6 646.7 0.01 48 19 25957 -60.5 -89.5 1 29.0 -61.8 254 59 660.6 660.6 323.1 660.6 0.01 49 16 27012 -64.9 -90.9 2 26.0 -65.8 231 66 679.5 679.5 323.7 679.6 0.01 50 11 29299 -63.1 -91.1 1 28.0 -64.6 250 89 762.9 762.9 326.3 763.0 0.01 51 10 29880 -66.1 -92.1 1 26.0 -67.3 260 101 772.8 772.8 326.5 772.9 0.01 52 9.1 30460 -60.3 -90.3 1 30.0 -62.7 816.2 816.2 327.6 816.3 0.01 53 8.6 30810 -62.7 -89.7 1 27.0 -64.7 820.1 820.1 327.7 820.2 0.01 54 7.7 31496 -60.3 -90.3 1 30.0 -63.0 856.1 856.1 328.5 856.2 0.01 55 7.4 31747 -54.9 -87.9 1 33.0 -59.5 887.9 887.9 329.2 888.1 0.02 56 5.6 33519 -57.1 -88.1 1 31.0 -61.6 951.9 951.9 330.4 952.1 0.03 57 5.4 33753 -51.3 -85.3 1 34.0 -58.4 987.6 987.7 331.0 988.2 0.05 58 4.6 34786 -54.7 -85.7 1 31.0 -60.8 1018.1 1018.2 331.5 1018.7 0.06 TRP 349 7392 -45.7 -70.7 4 25.0 -46.2 265 44 307.4 307.4 284.3 307.4 0.01 WND 151 12957 -50.0 -81.9 1 31.9 -50.6 245 73 383.2 383.2 302.8 383.2 0.00 Sounding variables and indices 1000-500 mb thick: 5091.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.19 inches Sfc-500 mean rel hum: 69.56 % Est. max temperature: -1.17 C = 29.89 F Sfc-Lift cond lev (LCL): 932.74 mb = 427.77 m = 1403.43 ft T: -6.59 C 700-500 lapse rate: 6.07 C/km ThetaE index: 0.44 C Layer 700.0- 688.0 mb Conv cond level (CCL): 876.22 mb = 910.74 m = 2987.94 ft Mean mixing ratio: 1.97 g/kg Conv temperature: -2.04 C = 28.32 F Cap Strength: 2.62 C Lifted Index: 7.62 C Risk: None Lifted Index @300 mb: 30.83 C Lifted Index @700 mb: 0.69 C Showalter Index: 7.50 C Risk: None Total Totals Index: 50.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.00 C Cross Totals Index: 24.40 C K Index: 10.30 Risk: None Sweat Index: 235.76 Risk: None Energy Index: 1.78 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.29 J/kg Max Up Vert Vel: 3.55 m/s Conv Inhibition (B-): 79621.38 J/kg Cap Strength: 7.10 C Lift Cond Lev (LCL): 887.31 mb = 813.77 m = 2669.81 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 305 at 23 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 ---------------------------------------------------------- 0 978 57 265 9 9.0 0.8 | 145 17 -9.8 14.0 1 948 305 250 27 25.4 9.2 | 196 23 6.6 22.4 2 925 493 250 33 31.0 11.3 | 207 27 12.3 24.5 3 911 610 250 32 30.1 10.9 | 205 27 11.3 24.1 4 876 914 245 31 28.1 13.1 | 200 28 9.3 26.3 5 850 1145 250 31 29.1 10.6 | 204 26 10.4 23.8 6 842 1219 250 32 30.1 10.9 | 205 27 11.3 24.1 7 808 1524 265 35 34.9 3.1 | 225 23 16.1 16.2 8 776 1829 265 34 33.9 3.0 | 223 22 15.1 16.2 9 745 2134 275 32 31.9 -2.8 | 232 17 13.1 10.4 10 715 2438 275 36 35.9 -3.1 | 240 20 17.1 10.1 11 700 2596 275 35 34.9 -3.1 | 238 19 16.1 10.1 12 686 2743 275 34 33.9 -3.0 | 236 18 15.1 10.2 13 602 3658 275 34 33.9 -3.0 | 236 18 15.1 10.2 14 552 4267 290 33 31.0 -11.3 | 261 12 12.3 1.9 15 529 4572 295 30 27.2 -12.7 | 266 8 8.4 0.5 16 507 4877 290 28 26.3 -9.6 | 244 8 7.6 3.6 17 500 4970 300 25 21.7 -12.5 | 256 3 2.9 0.7 18 485 5182 310 23 17.6 -14.8 | 35 2 -1.1 -1.6 19 423 6096 280 26 25.6 -4.5 | 218 11 6.9 8.7 20 405 6401 280 37 36.4 -6.4 | 249 19 17.7 6.8 21 400 6480 280 30 29.5 -5.2 | 234 13 10.8 8.0 22 370 7010 270 29 29.0 -0.0 | 218 17 10.3 13.2 23 349 7392 265 44 43.8 3.8 | 236 30 25.1 17.0 24 337 7620 270 44 44.0 -0.0 | 242 28 25.3 13.2 25 322 7925 280 39 38.4 -6.8 | 252 21 19.7 6.4 26 308 8230 260 48 47.3 8.3 | 233 36 28.5 21.5 27 300 8400 275 52 51.8 -4.5 | 255 34 33.1 8.7 28 294 8534 275 50 49.8 -4.4 | 254 32 31.1 8.8 29 268 9144 265 53 52.8 4.6 | 242 38 34.0 17.8 30 250 9620 250 62 58.3 21.2 | 229 52 39.5 34.4 31 245 9754 250 62 58.3 21.2 | 229 52 39.5 34.4 32 234 10058 260 57 56.1 9.9 | 238 44 37.4 23.1 33 214 10668 260 52 51.2 9.0 | 236 39 32.5 22.2 34 200 11110 250 53 49.8 18.1 | 225 44 31.1 31.3 35 170 12192 240 53 45.9 26.5 | 214 48 27.2 39.7 36 151 12957 245 73 66.2 30.9 | 227 65 47.4 44.0 37 150 13000 245 73 66.2 30.9 | 227 65 47.4 44.0 38 148 13106 245 73 66.2 30.9 | 227 65 47.4 44.0 39 111 14935 250 58 54.5 19.8 | 227 49 35.8 33.0 40 106 15240 245 58 52.6 24.5 | 222 51 33.8 37.7 41 100 15640 240 58 50.2 29.0 | 217 53 31.5 42.2 42 97 15850 240 58 50.2 29.0 | 217 53 31.5 42.2 43 70 17900 245 73 66.2 30.9 | 227 65 47.4 44.0 44 66 18288 240 75 65.0 37.5 | 222 69 46.2 50.7 45 57 19202 250 48 45.1 16.4 | 222 40 26.4 29.6 46 54 19507 225 46 32.5 32.5 | 197 48 13.8 45.7 47 50 20010 245 49 44.4 20.7 | 217 43 25.7 33.9 48 49 20117 235 53 43.4 30.4 | 209 50 24.7 43.6 49 47 20422 250 45 42.3 15.4 | 219 37 23.5 28.6 50 45 20726 245 41 37.2 17.3 | 211 36 18.4 30.5 51 40 21336 240 55 47.6 27.5 | 215 50 28.9 40.7 52 37 21946 240 72 62.4 36.0 | 222 66 43.6 49.2 53 35 22250 230 62 47.5 39.9 | 208 60 28.7 53.0 54 33 22555 235 54 44.2 31.0 | 210 51 25.5 44.2 55 30 23160 235 64 52.4 36.7 | 214 60 33.7 49.9 56 30 23165 250 58 54.5 19.8 | 227 49 35.8 33.0 57 27 23774 230 70 53.6 45.0 | 211 68 34.9 58.2 58 23 24689 250 77 72.4 26.3 | 234 67 53.6 39.5 59 20 25640 255 57 55.1 14.8 | 232 46 36.3 27.9 60 19 25908 255 59 57.0 15.3 | 233 48 38.2 28.5 61 18 26213 250 56 52.6 19.2 | 226 47 33.9 32.4 62 17 26518 235 77 63.1 44.2 | 218 72 44.3 57.4 63 16 27127 230 63 48.3 40.5 | 209 61 29.5 53.7 64 15 27432 230 74 56.7 47.6 | 212 72 37.9 60.8 65 14 27737 230 82 62.8 52.7 | 214 79 44.1 65.9 66 14 28042 240 89 77.1 44.5 | 225 82 58.3 57.7 67 13 28346 255 84 81.1 21.7 | 241 72 62.4 34.9 68 12 28956 250 100 94.0 34.2 | 238 89 75.2 47.4 69 11 29566 250 81 76.1 27.7 | 235 70 57.4 40.9 70 10 29880 260 101 99.5 17.5 | 249 86 80.7 30.7 Wind Parameters Mean winds (0-6000m): 275.1 at 30.6 knts Storm direction: 305.1 at 22.9 knts Shear (0-3000m) pos: 2.7 neg: 3.7 tot: 6.4 10-3/s Storm rel Dir Shear (0-3000m): 90.9 deg Storm rel helicity (0-3000m) pos: 198.9 neg: -27.1 tot: 171.7 m^2/s^2 ave: 57.2 10^-3 m/s^2 rel: 0.62 Storm rel vorticity (0-3000m) horiz: 8.8 stream: 5.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.29 Bulk Shear: 21.79 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 ------------------------------------------------------------------------------- 500 251 24 192 21| 0.0 24.6 24.6|102.6 0.0 102.6 205.2 0.84| 24.8 20.9 1000 249 28 198 24| 0.0 11.6 11.6|108.4 -18.8 89.6 89.6 0.66| 14.5 9.5 1500 252 30 203 24| 3.6 7.7 11.3|173.0 -18.8 154.2 102.8 0.73| 13.4 9.7 2000 256 31 208 23| 3.5 5.8 9.3|183.8 -21.4 162.4 81.2 0.67| 11.4 7.7 2500 260 31 213 22| 3.3 4.6 7.9|198.9 -23.3 175.5 70.2 0.65| 10.3 6.7 3000 263 32 217 21| 2.7 3.7 6.4|198.9 -27.1 171.7 57.2 0.62| 8.8 5.5 4000 267 32 222 20| 2.7 2.8 5.4|217.0 -27.1 189.8 47.5 0.63| 7.3 4.6 5000 272 32 227 18| 2.7 2.2 4.9|229.7 -33.7 196.0 39.2 0.52| 7.7 4.0 6000 275 31 228 16| 2.3 2.6 4.9|230.2 -37.5 192.7 32.1 0.41| 7.7 3.1 Wrote GIF file: /home/apache/climate/data/raob//CYJT/skewt/CYJT.skewt.20251213.00.gif