UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101700.upa.cvt Date: 0000Z 17 OCT 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 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 1006 98 15.4 0.4 36 15.0 8.2 355 6 288.1 288.7 281.0 299.3 3.91 1 1000 138 15.4 -1.6 31 17.0 7.5 360 11 288.5 289.1 280.6 298.4 3.40 2 989 232 14.8 -2.2 31 17.0 7.0 360 15 288.9 289.4 280.6 298.4 3.28 3 925 792 10.0 -3.0 40 13.0 4.2 345 25 289.5 290.1 281.0 299.2 3.31 4 858 1411 4.6 -3.4 56 8.0 1.1 330 31 290.2 290.8 281.4 300.3 3.46 5 850 1487 4.0 -4.0 56 8.0 0.6 330 31 290.3 290.9 281.4 300.1 3.34 6 841 1573 3.2 -4.8 56 8.0 -0.2 334 31 290.4 290.9 281.2 299.7 3.18 7 829 1690 2.8 -7.2 48 10.0 -1.2 344 31 291.2 291.6 280.9 299.1 2.68 8 825 1729 3.0 -10.0 38 13.0 -1.8 347 31 291.8 292.2 280.6 298.3 2.16 9 818 1798 2.4 -9.6 41 12.0 -2.1 352 31 291.8 292.2 280.7 298.6 2.25 10 811 1867 3.2 -13.8 27 17.0 -2.6 356 31 293.4 293.7 280.6 298.4 1.62 11 808 1897 4.4 -23.6 11 28.0 -3.4 356 31 295.0 295.1 280.1 297.3 0.70 12 800 1978 4.8 -27.2 8 32.0 -3.6 357 31 296.3 296.4 280.4 298.0 0.51 13 750 2502 2.0 -21.0 16 23.0 -4.8 355 33 298.7 298.9 282.1 301.8 0.95 14 714 2897 0.6 -30.4 8 31.0 -6.8 355 39 301.4 301.5 282.5 302.9 0.43 15 704 3011 2.2 -45.8 1 48.0 -6.5 355 43 304.4 304.4 283.3 304.8 0.09 16 700 3057 2.4 355 45 305.1 17 696 3103 2.4 355 45 305.6 18 661 3518 -0.3 -30.3 8 30.0 -7.7 351 46 307.1 307.2 284.8 308.7 0.47 19 647 3689 -1.5 -40.5 3 39.0 -9.0 350 47 307.7 307.7 284.7 308.3 0.17 20 633 3863 -2.1 -21.1 22 19.0 -7.8 348 47 308.9 309.1 286.2 312.6 1.12 21 622 4002 -3.3 -21.3 23 18.0 -8.7 347 48 309.1 309.3 286.3 312.8 1.12 22 601 4272 -5.5 -22.5 25 17.0 -10.3 345 48 309.6 309.8 286.4 313.1 1.04 23 585 4484 -6.5 -24.5 22 18.0 -11.3 345 52 310.8 311.0 286.7 313.9 0.90 24 580 4551 -5.7 -28.7 14 23.0 -11.3 345 54 312.5 312.7 287.0 314.7 0.62 25 574 4632 -5.5 -24.5 21 19.0 -10.8 345 55 313.7 313.9 287.7 316.8 0.92 26 563 4784 -6.5 -23.5 25 17.0 -11.3 345 59 314.3 314.5 288.0 317.7 1.02 27 553 4924 -7.3 -26.3 20 19.0 -12.2 345 61 314.9 315.1 288.0 317.7 0.81 28 528 5282 -10.3 -24.3 31 14.0 -14.0 345 64 315.5 315.7 288.4 319.0 1.01 29 500 5700 -12.9 -29.9 23 17.0 -16.6 345 67 317.3 317.4 288.6 319.6 0.64 30 485 5931 -14.1 -34.1 17 20.0 -18.0 345 67 318.6 318.7 288.8 320.2 0.44 31 484 5947 -14.1 -35.1 15 21.0 -18.0 345 67 318.8 318.9 288.8 320.2 0.40 32 439 6678 -20.1 -42.1 12 22.0 -23.1 345 65 320.2 320.3 289.0 321.0 0.21 33 414 7109 -23.5 -42.5 16 19.0 -25.9 342 67 321.3 321.3 289.4 322.1 0.22 34 400 7360 -25.1 -48.1 10 23.0 -27.4 340 69 322.4 322.4 289.6 322.8 0.12 35 388 7581 -26.3 -53.3 6 27.0 -28.6 336 74 323.6 323.6 289.9 323.9 0.07 36 378 7770 -25.5 -54.5 5 29.0 -28.0 337 80 327.1 327.1 291.0 327.3 0.06 37 346 8407 -29.1 -54.1 7 25.0 -31.1 345 101 330.6 330.6 291.9 330.9 0.07 38 300 9410 -37.5 -56.5 12 19.0 -38.5 345 117 332.5 332.5 292.4 332.8 0.06 39 269 10152 -44.1 -60.1 15 16.0 -44.7 349 112 333.4 333.5 292.7 333.6 0.04 40 250 10640 -46.9 -62.9 14 16.0 -47.4 340 96 336.3 336.3 293.4 336.5 0.03 41 223 11388 -51.7 -65.7 17 14.0 -52.0 326 107 340.1 340.1 294.4 340.2 0.02 42 212 11715 -52.4 -68.9 12 16.5 -52.7 330 118 344.0 344.1 295.3 344.1 0.02 43 210 11776 -52.5 -69.5 11 17.0 -52.8 330 118 344.8 344.8 295.5 344.9 0.02 44 200 12090 -53.3 -73.3 7 20.0 -53.6 320 116 348.4 348.4 296.3 348.4 0.01 45 197 12187 -53.3 -73.3 7 20.0 -53.6 320 117 349.9 349.9 296.6 349.9 0.01 46 193 12319 -54.3 -74.3 7 20.0 -54.6 322 116 350.3 350.3 296.7 350.4 0.01 47 184 12627 -52.1 -76.1 4 24.0 -52.5 326 112 358.7 358.7 298.4 358.7 0.01 48 150 13920 -62.7 -80.7 7 18.0 -62.9 330 81 362.1 362.1 299.1 362.1 0.00 49 149 13961 -62.9 -79.9 8 17.0 -63.0 329 81 362.4 362.4 299.2 362.4 0.00 50 136 14519 -63.9 -82.9 6 19.0 -64.0 317 79 370.2 370.2 300.6 370.2 0.00 51 135 14564 -62.3 -83.3 4 21.0 -62.4 316 79 373.9 373.9 301.2 373.9 0.00 52 132 14702 -63.3 -84.3 4 21.0 -63.4 318 80 374.5 374.5 301.4 374.5 0.00 53 131 14748 -62.1 -84.1 4 22.0 -62.3 321 81 377.4 377.4 301.8 377.4 0.00 54 115 15539 -67.7 -85.7 6 18.0 -67.8 330 61 381.4 381.4 302.5 381.4 0.00 55 112 15698 -66.1 -85.1 5 19.0 -66.2 329 57 387.3 387.3 303.4 387.3 0.00 56 105 16086 -67.5 -86.5 5 19.0 -67.6 327 46 391.8 391.8 304.0 391.8 0.00 57 100 16380 -65.9 -86.9 4 21.0 -66.0 325 38 400.4 400.4 305.3 400.4 0.00 58 94 16756 -67.7 -87.7 4 20.0 -67.8 325 38 404.0 404.0 305.7 404.0 0.00 59 83 17509 -66.7 -87.7 4 21.0 -66.8 313 46 420.7 420.7 307.8 420.7 0.00 60 78 17891 -61.7 -87.7 2 26.0 -62.0 321 38 438.6 438.6 309.7 438.6 0.00 61 70 18560 -63.5 -88.5 2 25.0 -63.8 355 26 448.5 448.5 310.7 448.5 0.00 62 68 18737 -63.3 -88.3 2 25.0 -63.6 360 29 452.7 452.7 311.1 452.7 0.00 63 61 19396 -66.9 -89.9 3 23.0 -67.1 330 10 459.0 459.0 311.7 459.0 0.00 64 58 19702 -64.5 -89.5 2 25.0 -64.8 334 14 471.1 471.1 312.7 471.1 0.00 65 56 19915 -65.7 -89.7 2 24.0 -66.0 350 21 473.1 473.1 312.9 473.1 0.00 66 54 20137 -62.5 -89.5 1 27.0 -62.9 353 25 485.4 485.4 313.9 485.4 0.00 67 52 20368 -63.7 -89.7 2 26.0 -64.0 23 22 487.9 487.9 314.1 487.9 0.00 68 51 20487 -60.9 -88.9 1 28.0 -61.4 35 15 497.1 497.1 314.8 497.2 0.00 69 50 20610 -61.5 -88.5 2 27.0 -62.0 45 5 498.6 498.6 314.8 498.6 0.00 70 46 21123 -64.3 -90.3 2 26.0 -64.7 65 10 503.8 503.8 315.2 503.8 0.00 71 44 21396 -61.7 -89.7 1 28.0 -62.2 25 7 516.6 516.6 316.1 516.6 0.00 72 42 21683 -62.5 -89.5 1 27.0 -63.0 287 3 521.6 521.6 316.4 521.6 0.00 73 38 22306 -57.7 -87.7 1 30.0 -58.7 266 11 548.9 548.9 318.1 549.0 0.00 74 35 22824 -58.5 -88.5 1 30.0 -59.5 271 18 559.9 559.9 318.6 559.9 0.00 75 35 22824 -57.1 -88.1 1 31.0 -58.2 271 18 563.6 563.6 318.8 563.6 0.00 76 33 23194 -58.5 -88.5 1 30.0 -59.5 318 20 569.4 569.4 319.1 569.5 0.00 77 31 23590 -54.7 -86.7 1 32.0 -56.3 307 8 590.0 590.0 320.2 590.0 0.01 78 30 23800 -54.7 -86.7 1 32.0 -56.3 235 19 595.5 595.5 320.4 595.6 0.01 79 29 24017 -53.9 -85.9 1 32.0 -55.7 223 12 603.5 603.5 320.7 603.6 0.01 80 27 24475 -55.7 -86.7 1 31.0 -57.3 259 15 610.9 610.9 321.1 611.0 0.01 81 26 24716 -54.3 -86.3 1 32.0 -56.2 277 10 621.5 621.5 321.6 621.6 0.01 82 24 25229 -55.1 -87.1 1 32.0 -57.0 255 15 633.6 633.6 322.0 633.7 0.01 83 22 25789 -51.3 -85.3 1 34.0 -54.2 292 11 660.9 660.9 323.1 661.0 0.01 84 21 26092 -51.5 -84.5 1 33.0 -54.5 296 9 669.1 669.1 323.4 669.2 0.01 85 20 26410 -49.7 -84.7 1 35.0 -53.3 290 8 684.0 684.1 323.9 684.2 0.02 86 19 26747 -48.5 -83.5 1 35.0 -52.6 248 9 697.9 697.9 324.4 698.0 0.02 87 17 27478 -49.7 -84.7 1 35.0 -53.7 207 13 716.6 716.6 325.0 716.7 0.02 88 17 27478 -48.1 -84.1 1 36.0 -52.7 207 13 721.7 721.7 325.1 721.9 0.02 89 14 28752 -50.5 -84.5 1 34.0 -54.8 217 18 754.8 754.8 326.1 755.0 0.02 90 13 29238 -48.1 -84.1 1 36.0 -53.5 253 21 779.3 779.3 326.7 779.5 0.03 91 12 29767 -47.9 -83.9 1 36.0 -53.7 250 26 798.0 798.0 327.2 798.3 0.03 92 11 30337 -50.7 -84.7 1 34.0 -55.6 245 30 808.0 808.0 327.4 808.2 0.03 93 10 30960 -49.9 -84.9 1 35.0 -55.4 245 27 833.3 833.3 328.0 833.5 0.03 94 9.0 31654 -46.9 -83.9 1 37.0 -54.1 870.3 870.3 328.8 870.7 0.04 95 8.6 31954 -47.9 -83.9 1 36.0 -54.8 877.8 877.8 329.0 878.2 0.04 96 8.3 32189 -46.7 -83.7 1 37.0 -54.4 891.5 891.5 329.2 891.9 0.04 TRP 115 15539 -67.7 -85.7 6 18.0 -67.8 330 61 381.4 381.4 302.5 381.4 0.00 WND 212 11715 -52.4 -68.9 12 16.5 -52.7 330 118 344.0 344.1 295.3 344.1 0.02 Sounding variables and indices 1000-500 mb thick: 5562.00 m Freezing level: 664.89 mb = 3471.94 m = 11390.75 ft Wetbulb zero: 842.84 mb = 1555.61 m = 5103.63 ft Precipitable water: 0.36 inches Sfc-500 mean rel hum: 26.54 % Est. max temperature: 17.57 C = 63.63 F Sfc-Lift cond lev (LCL): 802.08 mb = 1957.30 m = 6421.52 ft T: 4.70 C 700-500 lapse rate: 5.79 C/km ThetaE index: 2.03 C Layer 850.0- 818.0 mb Conv cond level (CCL): 528.59 mb = 5273.70 m = 17301.96 ft Mean mixing ratio: 3.33 g/kg Conv temperature: 42.90 C = 109.22 F Cap Strength: 16.29 C Lifted Index: 16.85 C Risk: None Lifted Index @300 mb: 23.95 C Lifted Index @700 mb: 12.49 C Showalter Index: 15.97 C Risk: None Total Totals Index: 25.80 C Risk: None Vertical Totals Index: 16.90 C Cross Totals Index: 8.90 C K Index: -33.90 Risk: None Sweat Index: 129.00 Risk: None Energy Index: 4.15 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.70 J/kg Max Up Vert Vel: 2.32 m/s Conv Inhibition (B-): 62432.71 J/kg Cap Strength: 16.76 C Lift Cond Lev (LCL): 762.84 mb = 2364.05 m = 7755.98 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 17 at 32 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 1006 98 355 6 0.5 -6.0 | 202 27 10.1 24.7 1 1000 138 360 11 -0.0 -11.0 | 206 22 9.6 19.6 2 980 305 360 18 -0.0 -18.0 | 217 16 9.6 12.6 3 945 610 350 22 3.8 -21.7 | 236 16 13.4 9.0 4 925 792 345 25 6.5 -24.1 | 248 17 16.0 6.5 5 911 914 340 25 8.6 -23.5 | 248 19 18.1 7.1 6 878 1219 330 30 15.0 -26.0 | 259 25 24.6 4.7 7 850 1487 330 31 15.5 -26.8 | 261 25 25.1 3.8 8 846 1524 330 31 15.5 -26.8 | 261 25 25.1 3.8 9 815 1829 355 31 2.7 -30.9 | 271 12 12.3 -0.2 10 785 2134 360 32 -0.0 -32.0 | 278 10 9.6 -1.4 11 756 2438 355 33 2.9 -32.9 | 280 13 12.4 -2.2 12 728 2743 355 34 3.0 -33.9 | 284 13 12.5 -3.2 13 700 3057 355 45 3.9 -44.8 | 316 20 13.5 -14.2 14 648 3658 350 47 8.2 -46.3 | 311 24 17.7 -15.7 15 600 4267 345 48 12.4 -46.4 | 306 27 22.0 -15.7 16 555 4877 345 61 15.8 -58.9 | 318 38 25.4 -28.3 17 500 5700 345 67 17.3 -64.7 | 322 43 26.9 -34.1 18 494 5791 345 67 17.3 -64.7 | 322 43 26.9 -34.1 19 474 6096 345 67 17.3 -64.7 | 322 43 26.9 -34.1 20 437 6706 345 65 16.8 -62.8 | 321 42 26.4 -32.2 21 400 7360 340 69 23.6 -64.8 | 316 48 33.2 -34.2 22 386 7620 335 75 31.7 -68.0 | 312 56 41.3 -37.3 23 325 8839 350 116 20.1 -114.2 | 340 89 29.7 -83.6 24 311 9144 345 115 29.8 -111.1 | 334 90 39.3 -80.4 25 300 9410 345 117 30.3 -113.0 | 334 92 39.8 -82.4 26 298 9449 345 118 30.5 -114.0 | 334 92 40.1 -83.3 27 260 10363 350 110 19.1 -108.3 | 340 83 28.7 -77.7 28 250 10640 340 96 32.8 -90.2 | 325 73 42.4 -59.6 29 238 10973 340 96 32.8 -90.2 | 325 73 42.4 -59.6 30 227 11278 325 104 59.7 -85.2 | 308 88 69.2 -54.6 31 212 11715 330 118 59.0 -102.2 | 316 99 68.6 -71.6 32 206 11887 330 118 59.0 -102.2 | 316 99 68.6 -71.6 33 200 12090 320 116 74.6 -88.9 | 305 102 84.1 -58.2 34 197 12192 320 117 75.2 -89.6 | 305 103 84.8 -59.0 35 188 12497 325 115 66.0 -94.2 | 310 99 75.5 -63.6 36 155 13716 335 82 34.7 -74.3 | 315 62 44.2 -43.7 37 150 13920 330 81 40.5 -70.1 | 308 64 50.1 -39.5 38 133 14630 315 79 55.9 -55.9 | 291 70 65.4 -25.2 39 127 14935 330 83 41.5 -71.9 | 309 66 51.1 -41.2 40 121 15240 335 75 31.7 -68.0 | 312 56 41.3 -37.3 41 115 15539 330 61 30.5 -52.8 | 299 46 40.1 -22.2 42 100 16380 325 38 21.8 -31.1 | 271 31 31.4 -0.5 43 99 16459 335 50 21.1 -45.3 | 296 34 30.7 -14.7 44 94 16764 325 38 21.8 -31.1 | 271 31 31.4 -0.5 45 85 17374 310 49 37.5 -31.5 | 271 47 47.1 -0.9 46 73 18288 330 29 14.5 -25.1 | 257 25 24.1 5.5 47 70 18560 355 26 2.3 -25.9 | 248 13 11.8 4.7 48 70 18593 355 32 2.8 -31.9 | 276 12 12.4 -1.2 49 63 19202 15 19 -4.9 -18.4 | 201 13 4.6 12.3 50 60 19507 305 5 4.1 -2.9 | 206 31 13.7 27.8 51 57 19812 350 19 3.3 -18.7 | 227 18 12.9 11.9 52 54 20117 350 25 4.3 -24.6 | 247 15 13.9 6.0 53 52 20422 30 21 -10.5 -18.2 | 176 12 -0.9 12.4 54 50 20610 45 5 -3.5 -3.5 | 193 28 6.0 27.1 55 49 20726 25 13 -5.5 -11.8 | 192 19 4.1 18.9 56 47 21031 70 11 -10.3 -3.8 | 178 27 -0.8 26.9 57 45 21336 55 8 -6.6 -4.6 | 187 26 3.0 26.0 58 42 21641 290 2 1.9 -0.7 | 201 32 11.4 30.0 59 38 22250 260 10 9.8 1.7 | 211 38 19.4 32.4 60 37 22555 285 14 13.5 -3.6 | 221 36 23.1 27.0 61 35 22860 270 18 18.0 -0.0 | 222 41 27.6 30.6 62 33 23165 315 21 14.8 -14.8 | 237 29 24.4 15.8 63 32 23470 340 12 4.1 -11.3 | 215 24 13.7 19.4 64 30 23774 260 2 2.0 0.3 | 200 33 11.5 31.0 65 30 23800 235 19 15.6 10.9 | 211 49 25.1 41.5 66 29 24079 220 10 6.4 7.7 | 203 42 16.0 38.3 67 27 24384 250 17 16.0 5.8 | 215 45 25.5 36.4 68 26 24689 280 10 9.8 -1.7 | 214 35 19.4 28.9 69 25 24994 255 13 12.6 3.4 | 213 41 22.1 34.0 70 24 25298 255 15 14.5 3.9 | 215 42 24.1 34.5 71 22 25908 300 10 8.7 -5.0 | 215 31 18.2 25.6 72 20 26410 290 8 7.5 -2.7 | 211 33 17.1 27.9 73 18 27127 200 10 3.4 9.4 | 198 42 13.0 40.0 74 17 27432 205 12 5.1 10.9 | 199 44 14.6 41.5 75 16 27737 220 19 12.2 14.6 | 206 50 21.8 45.2 76 16 28042 245 14 12.7 5.9 | 211 43 22.3 36.6 77 14 28651 210 17 8.5 14.7 | 202 49 18.1 45.4 78 13 29261 255 21 20.3 5.4 | 220 47 29.8 36.1 79 11 30175 245 31 28.1 13.1 | 221 58 37.7 43.7 80 10 30960 245 27 24.5 11.4 | 219 54 34.0 42.0 Wind Parameters Mean winds (0-6000m): 347.3 at 42.8 knts Storm direction: 17.3 at 32.1 knts Shear (0-3000m) pos: 2.4 neg: 6.1 tot: 8.5 10-3/s Storm rel Dir Shear (0-3000m): 113.9 deg Storm rel helicity (0-3000m) pos: 155.8 neg: 0.0 tot: 155.8 m^2/s^2 ave: 51.9 10^-3 m/s^2 rel: 0.54 Storm rel vorticity (0-3000m) horiz: 10.6 stream: 5.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.03 Bulk Shear: 90.22 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 ------------------------------------------------------------------------------- 500 356 17 218 17| 0.0 16.3 16.3| 49.0 0.0 49.0 98.1 0.60| 17.6 10.6 1000 348 21 234 17| 0.0 11.6 11.6| 80.6 0.0 80.6 80.6 0.62| 13.9 8.6 1500 341 24 246 19| 1.1 7.7 8.8|102.4 0.0 102.4 68.2 0.59| 11.7 6.9 2000 344 26 251 18| 3.5 5.8 9.3|116.0 0.0 116.0 58.0 0.50| 12.1 6.1 2500 347 27 255 16| 2.8 5.2 8.0|119.3 0.0 119.3 47.7 0.49| 10.3 5.1 3000 349 29 262 15| 2.4 6.1 8.5|155.8 0.0 155.8 51.9 0.54| 10.6 5.8 4000 350 34 279 16| 1.8 5.2 7.0|155.8 -22.4 133.4 33.3 0.43| 8.9 3.9 5000 348 38 291 19| 1.4 5.7 7.1|220.0 -25.4 194.6 38.9 0.44| 8.7 3.8 6000 347 43 300 22| 1.2 5.1 6.3|240.0 -25.4 214.5 35.8 0.43| 7.6 3.3 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251017.00.gif