UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101712.upa.cvt Date: 1200Z 17 OCT 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 17 OCT 25 Station: KIAD WMO ident: 72403 Latitude: 38.95 Longitude: -77.45 Elevation: 98.00 ------------------------------------------------------------------------------- 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 1009 98 5.6 -0.4 65 6.0 3.0 250 2 278.0 278.7 275.7 288.2 3.68 1 1001 154 7.2 -0.8 57 8.0 3.7 317 12 280.3 280.9 276.8 290.3 3.60 2 1000 161 7.6 -1.4 53 9.0 3.7 325 13 280.8 281.3 276.9 290.4 3.45 3 999 169 9.0 -2.0 46 11.0 4.2 326 13 282.2 282.8 277.4 291.6 3.30 4 985 286 9.8 -3.2 40 13.0 4.2 347 15 284.2 284.7 278.1 292.9 3.06 5 925 805 5.8 -1.2 61 7.0 2.7 15 22 285.2 285.9 279.6 296.0 3.78 6 921 840 5.4 -1.6 61 7.0 2.3 17 23 285.2 285.8 279.4 295.7 3.69 7 916 885 5.2 -1.8 61 7.0 2.1 19 23 285.4 286.1 279.5 295.9 3.65 8 903 1001 5.0 -5.0 48 10.0 0.9 17 22 286.4 286.9 279.0 294.8 2.91 9 878 1229 3.6 -8.4 41 12.0 -0.9 9 16 287.2 287.6 278.6 294.0 2.31 10 872 1285 3.4 -9.6 38 13.0 -1.3 6 18 287.6 288.0 278.5 293.8 2.11 11 867 1332 3.6 -12.4 30 16.0 -1.9 4 19 288.3 288.6 278.3 293.4 1.70 12 853 1463 3.0 -11.0 35 14.0 -2.0 357 23 289.0 289.3 279.0 294.8 1.93 13 850 1492 3.4 -11.6 32 15.0 -1.9 355 24 289.7 290.0 279.2 295.2 1.85 14 848 1511 3.4 -12.6 30 16.0 -2.1 355 24 289.9 290.2 279.1 295.0 1.71 15 845 1540 4.2 -18.8 17 23.0 -2.7 354 25 291.0 291.2 278.7 294.2 1.02 16 835 1637 6.0 -25.0 9 31.0 -2.5 353 26 293.9 294.0 279.5 295.9 0.60 17 814 1845 6.0 -29.0 6 35.0 -2.9 350 28 296.1 296.2 280.2 297.5 0.43 18 797 2017 5.0 -24.0 10 29.0 -3.1 353 29 296.8 296.9 280.9 299.0 0.69 19 778 2214 5.8 -41.2 2 47.0 -3.8 355 31 299.7 299.7 281.4 300.2 0.13 20 749 2524 4.8 -38.2 3 43.0 -4.5 355 35 301.9 301.9 282.4 302.6 0.19 21 733 2700 4.4 -16.6 20 21.0 -2.9 355 35 303.3 303.6 284.5 307.9 1.42 22 722 2823 4.8 -16.2 20 21.0 -2.6 355 37 305.1 305.4 285.3 309.9 1.49 23 713 2925 5.4 -17.6 17 23.0 -2.6 355 40 306.8 307.1 285.8 311.2 1.34 24 701 3063 4.6 -16.4 20 21.0 -2.9 355 45 307.5 307.7 286.2 312.4 1.51 25 700 3075 4.6 -16.4 20 21.0 -2.9 355 45 307.6 307.9 286.2 312.5 1.51 26 695 3133 4.6 -24.4 10 29.0 -4.1 355 45 308.2 308.4 285.6 310.8 0.76 27 655 3613 1.0 -19.0 21 20.0 -5.6 351 45 309.4 309.7 286.6 313.7 1.30 28 601 4299 -2.7 -29.7 10 27.0 -9.4 340 43 312.8 312.9 287.0 314.7 0.54 29 600 4313 -2.7 -32.7 8 30.0 -9.7 340 43 313.0 313.1 286.9 314.4 0.41 30 598 4339 -2.7 -42.7 3 40.0 -10.2 340 43 313.3 313.3 286.7 313.8 0.15 31 594 4392 -2.7 -28.7 11 26.0 -9.4 340 44 313.9 314.0 287.4 316.0 0.60 32 588 4473 -2.9 -26.9 14 24.0 -9.4 340 44 314.6 314.7 287.8 317.1 0.72 33 585 4513 -3.3 -27.3 14 24.0 -9.7 340 45 314.6 314.7 287.8 317.0 0.70 34 563 4815 -5.3 -28.3 14 23.0 -11.2 340 46 315.7 315.8 288.1 318.0 0.66 35 558 4885 -5.7 -23.7 23 18.0 -10.8 340 47 316.0 316.2 288.6 319.5 1.01 36 554 4941 -6.1 -15.1 49 9.0 -9.3 340 48 316.2 316.6 289.8 323.2 2.13 37 552 4970 -6.5 -13.5 58 7.0 -9.1 340 48 316.0 316.5 290.0 324.1 2.44 38 550 4998 -6.5 -16.5 45 10.0 -9.9 340 48 316.4 316.7 289.6 322.7 1.91 39 549 5012 -6.7 -14.7 53 8.0 -9.6 340 48 316.3 316.7 289.9 323.6 2.23 40 547 5041 -6.9 -14.9 53 8.0 -9.8 340 49 316.4 316.8 289.9 323.7 2.20 41 546 5055 -6.9 -17.9 41 11.0 -10.5 340 49 316.6 316.9 289.5 322.3 1.71 42 542 5112 -7.1 -19.1 38 12.0 -10.9 340 50 317.0 317.3 289.4 322.2 1.56 43 539 5156 -7.3 -14.3 57 7.0 -9.9 340 50 317.3 317.7 290.3 325.0 2.34 44 536 5199 -6.9 -15.9 49 9.0 -10.1 340 51 318.2 318.6 290.3 325.1 2.06 45 526 5346 -7.9 -15.9 53 8.0 -10.7 340 52 318.8 319.2 290.5 325.8 2.10 46 520 5435 -7.5 -18.5 41 11.0 -11.2 340 53 320.3 320.6 290.6 326.1 1.71 47 507 5632 -7.9 -22.9 29 15.0 -12.3 340 56 322.1 322.4 290.6 326.3 1.20 48 500 5740 -8.7 -22.7 31 14.0 -12.9 340 57 322.4 322.7 290.7 326.7 1.23 49 480 6054 -11.5 -23.5 36 12.0 -14.9 343 55 322.8 323.0 290.8 326.9 1.20 50 454 6476 -14.7 -26.7 35 12.0 -17.7 345 53 323.9 324.1 290.9 327.3 0.95 51 443 6661 -15.9 -28.9 32 13.0 -18.8 345 51 324.7 324.9 291.0 327.5 0.79 52 427 6936 -17.9 -27.9 41 10.0 -20.2 345 54 325.6 325.8 291.4 328.8 0.90 53 400 7420 -21.5 -35.5 27 14.0 -23.9 345 60 327.0 327.1 291.3 328.8 0.46 54 392 7569 -22.5 -37.5 24 15.0 -24.9 345 61 327.6 327.7 291.5 329.1 0.39 55 300 9480 -37.9 -48.9 31 11.0 -38.7 340 75 332.0 332.0 292.4 332.5 0.15 56 250 10710 -46.3 -63.3 13 17.0 -46.8 330 72 337.2 337.2 293.7 337.4 0.03 57 200 12160 -55.9 -68.9 18 13.0 -56.1 325 80 344.2 344.2 295.4 344.3 0.02 58 155 13750 -63.9 -76.0 18 12.1 -64.0 325 89 356.7 356.7 298.0 356.7 0.01 59 150 13950 -64.9 -76.9 18 12.0 -65.0 325 86 358.3 358.3 298.4 358.3 0.01 60 142 14283 -67.1 -80.1 14 13.0 -67.2 325 79 360.1 360.1 298.7 360.1 0.00 61 100 16400 -66.9 -85.9 5 19.0 -67.0 325 47 398.5 398.5 305.0 398.5 0.00 62 93 16841 -65.9 -86.9 4 21.0 -66.0 319 51 408.8 408.8 306.3 408.8 0.00 63 82 17604 -68.3 -88.3 4 20.0 -68.4 352 38 418.9 418.9 307.6 418.9 0.00 64 74 18222 -67.9 -88.9 3 21.0 -68.1 325 26 432.2 432.2 309.1 432.2 0.00 65 70 18560 -64.9 -88.9 2 24.0 -65.1 335 30 445.5 445.5 310.4 445.5 0.00 66 69 18647 -64.7 -88.7 2 24.0 -64.9 324 32 447.8 447.8 310.7 447.8 0.00 67 61 19394 -66.1 -89.1 3 23.0 -66.3 325 22 460.8 460.8 311.8 460.8 0.00 68 60 19494 -65.3 -89.3 2 24.0 -65.5 325 23 464.7 464.7 312.2 464.7 0.00 69 59 19597 -62.7 -88.7 2 26.0 -63.0 325 24 472.8 472.8 312.9 472.8 0.00 70 57 19808 -62.9 -88.9 2 26.0 -63.3 326 27 477.0 477.0 313.2 477.1 0.00 71 55 20029 -60.5 -88.5 1 28.0 -61.0 347 19 487.4 487.4 314.0 487.5 0.00 72 50 20620 -60.9 -88.9 1 28.0 -61.4 345 18 500.0 500.0 314.9 500.0 0.00 73 49 20746 -60.3 -88.3 1 28.0 -60.9 313 15 504.3 504.3 315.2 504.3 0.00 74 44 21410 -64.1 -89.1 2 25.0 -64.5 46 18 510.8 510.8 315.7 510.8 0.00 75 43 21551 -63.9 -89.9 2 26.0 -64.3 49 20 514.6 514.6 315.9 514.6 0.00 76 41 21846 -59.1 -88.1 1 29.0 -59.9 21 17 533.7 533.7 317.2 533.7 0.00 77 39 22158 -60.5 -87.5 2 27.0 -61.2 58 13 537.8 537.8 317.4 537.8 0.00 78 37 22487 -58.9 -87.9 1 29.0 -59.7 42 7 550.1 550.1 318.1 550.1 0.00 79 32 23400 -57.9 -86.9 1 29.0 -59.0 257 15 576.1 576.1 319.5 576.1 0.01 80 32 23400 -58.3 -87.3 1 29.0 -59.3 257 15 575.0 575.0 319.4 575.0 0.01 81 30 23810 -53.9 -85.9 1 32.0 -55.7 270 13 597.7 597.7 320.5 597.8 0.01 82 28 24254 -53.1 -85.1 1 32.0 -55.1 282 13 611.8 611.8 321.2 611.9 0.01 83 26 24736 -49.1 -83.1 1 34.0 -52.2 296 10 636.3 636.3 322.2 636.4 0.02 84 25 24992 -51.3 -83.3 1 32.0 -53.9 225 10 637.2 637.2 322.2 637.3 0.02 85 23 25533 -52.1 -84.1 1 32.0 -54.7 222 21 650.2 650.2 322.7 650.3 0.01 86 20 26440 -51.3 -84.3 1 33.0 -54.4 255 21 679.1 679.2 323.7 679.3 0.02 87 16 27899 -49.3 -83.3 1 34.0 -53.6 255 19 730.4 730.4 325.4 730.6 0.02 88 13 29260 -49.7 -83.7 1 34.0 -54.5 236 19 773.7 773.7 326.6 774.0 0.03 89 12 29781 -52.7 -84.7 1 32.0 -56.6 235 23 781.0 781.0 326.8 781.2 0.03 90 10 30970 -48.7 -83.7 1 35.0 -54.7 225 28 837.8 837.8 328.1 838.1 0.04 91 9.7 31170 -49.5 -83.5 1 34.0 -55.3 842.1 842.1 328.2 842.4 0.04 92 9.3 31446 -48.5 -83.5 1 35.0 -54.9 856.1 856.1 328.5 856.5 0.04 93 8.2 32273 -49.3 -84.3 1 35.0 -55.8 884.3 884.3 329.1 884.7 0.04 TRP 142 14283 -67.1 -80.1 14 13.0 -67.2 325 79 360.1 360.1 298.7 360.1 0.00 WND 155 13750 -63.9 -76.0 18 12.1 -64.0 325 89 356.7 356.7 298.0 356.7 0.01 Sounding variables and indices 1000-500 mb thick: 5579.00 m Freezing level: 640.41 mb = 3798.33 m = 12461.57 ft Wetbulb zero: 890.63 mb = 1113.39 m = 3652.81 ft Precipitable water: 0.38 inches Sfc-500 mean rel hum: 25.79 % Est. max temperature: 16.28 C = 61.30 F Sfc-Lift cond lev (LCL): 919.97 mb = 849.53 m = 2787.15 ft T: 5.36 C 700-500 lapse rate: 4.99 C/km ThetaE index: 2.49 C Layer 903.0- 853.0 mb Conv cond level (CCL): 483.91 mb = 5991.29 m = 19656.21 ft Mean mixing ratio: 3.43 g/kg Conv temperature: 50.37 C = 122.67 F Cap Strength: 24.54 C Lifted Index: 24.62 C Risk: None Lifted Index @300 mb: 27.00 C Lifted Index @700 mb: 17.71 C Showalter Index: 23.62 C Risk: None Total Totals Index: 9.20 C Risk: None Vertical Totals Index: 12.10 C Cross Totals Index: -2.90 C K Index: -20.50 Risk: None Sweat Index: 105.00 Risk: None Energy Index: 6.64 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 15.22 J/kg Max Up Vert Vel: 5.52 m/s Conv Inhibition (B-): 57836.46 J/kg Cap Strength: 24.54 C Lift Cond Lev (LCL): 827.09 mb = 1714.69 m = 5625.55 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 18 at 28 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 1009 98 250 2 1.9 0.7 | 201 29 10.7 27.3 1 1000 161 325 13 7.5 -10.6 | 226 23 16.3 15.9 2 983 305 350 15 2.6 -14.8 | 224 16 11.4 11.8 3 947 610 20 19 -6.5 -17.9 | 195 9 2.3 8.7 4 925 805 15 22 -5.7 -21.3 | 211 6 3.1 5.3 5 913 914 20 24 -8.2 -22.6 | 189 4 0.6 4.0 6 879 1219 10 16 -2.8 -15.8 | 209 12 6.1 10.8 7 850 1492 355 24 2.1 -23.9 | 256 11 10.9 2.7 8 816 1829 350 28 4.9 -27.6 | 274 14 13.7 -1.0 9 786 2134 355 30 2.6 -29.9 | 286 12 11.5 -3.3 10 757 2438 355 35 3.1 -34.9 | 305 14 11.9 -8.3 11 729 2743 355 35 3.1 -34.9 | 305 14 11.9 -8.3 12 700 3075 355 45 3.9 -44.8 | 325 22 12.8 -18.3 13 676 3353 355 46 4.0 -45.8 | 326 23 12.8 -19.2 14 650 3658 350 45 7.8 -44.3 | 317 24 16.7 -17.7 15 602 4267 340 43 14.7 -40.4 | 300 27 23.5 -13.8 16 558 4877 340 47 16.1 -44.2 | 305 30 24.9 -17.6 17 500 5740 340 57 19.5 -53.6 | 314 39 28.3 -27.0 18 497 5791 335 57 24.1 -51.7 | 307 41 32.9 -25.1 19 477 6096 345 55 14.2 -53.1 | 319 35 23.1 -26.5 20 440 6706 345 51 13.2 -49.3 | 316 32 22.0 -22.7 21 400 7420 345 60 15.5 -58.0 | 322 40 24.4 -31.4 22 389 7620 345 61 15.8 -58.9 | 323 41 24.6 -32.3 23 342 8534 345 70 18.1 -67.6 | 327 49 27.0 -41.0 24 314 9144 345 73 18.9 -70.5 | 328 52 27.7 -43.9 25 300 9480 340 75 25.7 -70.5 | 322 56 34.5 -43.9 26 275 10058 345 74 19.2 -71.5 | 328 53 28.0 -44.9 27 250 10710 330 72 36.0 -62.4 | 309 57 44.8 -35.8 28 240 10973 325 72 41.3 -59.0 | 303 60 50.1 -32.4 29 200 12160 325 80 45.9 -65.5 | 305 67 54.7 -39.0 30 172 13106 320 76 48.9 -58.2 | 299 66 57.7 -31.6 31 155 13750 325 89 51.0 -72.9 | 308 76 59.9 -46.3 32 150 13950 325 86 49.3 -70.4 | 307 73 58.2 -43.9 33 148 14021 325 89 51.0 -72.9 | 308 76 59.9 -46.3 34 142 14283 325 79 45.3 -64.7 | 305 66 54.2 -38.1 35 127 14935 315 79 55.9 -55.9 | 294 71 64.7 -29.3 36 121 15240 325 69 39.6 -56.5 | 302 57 48.4 -29.9 37 100 16400 325 47 27.0 -38.5 | 288 38 35.8 -11.9 38 94 16764 315 50 35.4 -35.4 | 281 45 44.2 -8.8 39 90 17069 330 54 27.0 -46.8 | 299 41 35.8 -20.2 40 81 17678 355 36 3.1 -35.9 | 308 15 12.0 -9.3 41 77 17983 345 27 7.0 -26.1 | 268 16 15.8 0.5 42 73 18288 320 26 16.7 -19.9 | 255 26 25.6 6.7 43 70 18560 335 30 12.7 -27.2 | 272 22 21.5 -0.6 44 70 18593 320 33 21.2 -25.3 | 268 30 30.1 1.3 45 66 18898 340 27 9.2 -25.4 | 266 18 18.1 1.2 46 63 19202 325 19 10.9 -15.6 | 241 23 19.7 11.0 47 57 19812 325 27 15.5 -22.1 | 260 25 24.3 4.5 48 54 20117 355 16 1.4 -15.9 | 224 15 10.2 10.6 49 52 20422 335 15 6.3 -13.6 | 229 20 15.2 13.0 50 50 20620 345 18 4.7 -17.4 | 236 16 13.5 9.2 51 49 20726 310 15 11.5 -9.6 | 230 26 20.3 16.9 52 45 21336 45 17 -12.0 -12.0 | 168 15 -3.2 14.6 53 42 21641 50 21 -16.1 -13.5 | 151 15 -7.2 13.1 54 40 21946 10 16 -2.8 -15.8 | 209 12 6.1 10.8 55 39 22250 75 12 -11.6 -3.1 | 173 24 -2.8 23.5 56 35 22860 355 1 0.1 -1.0 | 199 27 8.9 25.6 57 33 23165 245 10 9.1 4.2 | 210 36 17.9 30.8 58 32 23470 260 16 15.8 2.8 | 220 38 24.6 29.4 59 30 23774 290 10 9.4 -3.4 | 218 29 18.2 23.2 60 30 23810 270 13 13.0 -0.0 | 219 34 21.8 26.6 61 29 24079 285 12 11.6 -3.1 | 221 31 20.4 23.5 62 27 24384 280 13 12.8 -2.3 | 222 33 21.6 24.3 63 26 24689 310 10 7.7 -6.4 | 219 26 16.5 20.2 64 25 24994 225 10 7.1 7.1 | 205 37 15.9 33.6 65 24 25298 210 19 9.5 16.5 | 203 47 18.3 43.0 66 22 25908 240 24 20.8 12.0 | 218 49 29.6 38.6 67 21 26213 235 19 15.6 10.9 | 213 45 24.4 37.5 68 20 26440 255 21 20.3 5.4 | 222 43 29.1 32.0 69 20 26518 260 23 22.7 4.0 | 226 44 31.5 30.6 70 19 26822 255 21 20.3 5.4 | 222 43 29.1 32.0 71 17 27432 275 18 17.9 -1.6 | 227 37 26.8 25.0 72 16 27737 255 18 17.4 4.7 | 220 41 26.2 31.2 73 14 28651 255 22 21.3 5.7 | 223 44 30.1 32.3 74 14 28956 275 22 21.9 -1.9 | 231 39 30.8 24.7 75 13 29261 235 19 15.6 10.9 | 213 45 24.4 37.5 76 12 29870 235 24 19.7 13.8 | 215 49 28.5 40.3 77 11 30175 265 20 19.9 1.7 | 225 40 28.8 28.3 78 10 30970 225 28 19.8 19.8 | 212 55 28.6 46.4 Wind Parameters Mean winds (0-6000m): 348.4 at 37.3 knts Storm direction: 18.4 at 28.0 knts Shear (0-3000m) pos: 5.0 neg: 3.4 tot: 8.4 10-3/s Storm rel Dir Shear (0-3000m): 123.7 deg Storm rel helicity (0-3000m) pos: 165.8 neg: -21.1 tot: 144.7 m^2/s^2 ave: 48.2 10^-3 m/s^2 rel: 0.45 Storm rel vorticity (0-3000m) horiz: 12.5 stream: 5.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.22 Bulk Shear: 68.74 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 ------------------------------------------------------------------------------- 500 355 15 220 16| 20.7 0.0 20.7| 68.7 -19.1 49.6 99.2 0.18| 28.5 5.1 1000 9 18 215 11| 10.4 0.9 11.2| 74.1 -21.1 53.1 53.1 0.17| 19.8 3.4 1500 6 19 221 10| 6.9 4.0 10.9|103.9 -21.1 82.9 55.2 0.33| 17.8 5.8 2000 1 21 236 10| 6.3 3.0 9.2|120.3 -21.1 99.2 49.6 0.38| 14.9 5.6 2500 360 23 251 10| 6.0 2.4 8.4|136.1 -21.1 115.1 46.0 0.42| 13.0 5.4 3000 358 26 267 10| 5.0 3.4 8.4|165.8 -21.1 144.7 48.2 0.45| 12.5 5.6 4000 355 31 290 12| 3.8 3.0 6.8|167.9 -81.0 86.9 21.7 0.29| 10.8 3.1 5000 351 34 296 16| 3.0 3.1 6.1|197.2 -94.2 103.0 20.6 0.28| 9.5 2.6 6000 348 37 301 19| 2.7 3.0 5.7|306.1-136.5 169.6 28.3 0.29| 9.7 2.8 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251017.12.gif