UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120312.upa.cvt Date: 1200Z 3 DEC 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 3 DEC 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 1007 98 0.6 -5.4 64 6.0 -1.6 350 5 273.2 273.6 271.2 280.2 2.53 1 1000 142 0.2 -6.8 59 7.0 -2.2 330 14 273.4 273.7 270.9 279.7 2.29 2 983 279 0.0 -7.0 59 7.0 -2.4 334 22 274.5 274.9 271.6 280.9 2.30 3 925 763 -4.1 -8.4 72 4.3 -5.5 330 27 275.1 275.5 271.9 281.2 2.19 4 897 1004 -6.3 -9.7 77 3.4 -7.4 339 24 275.3 275.6 271.7 281.0 2.04 5 883 1128 -3.7 -12.7 50 9.0 -6.4 346 19 279.2 279.5 273.4 283.9 1.63 6 879 1164 -1.9 -13.9 39 12.0 -5.5 347 17 281.4 281.7 274.5 285.8 1.48 7 851 1421 -1.7 -13.7 39 12.0 -5.4 345 13 284.3 284.5 276.1 288.9 1.56 8 850 1430 -1.5 -14.5 36 13.0 -5.4 345 13 284.6 284.8 276.1 288.9 1.46 9 831 1611 0.6 -35.4 5 36.0 -6.4 337 12 288.6 288.7 276.3 289.4 0.23 10 824 1679 1.4 -37.6 4 39.0 -6.0 327 11 290.2 290.2 277.0 290.8 0.18 11 802 1896 1.8 -40.2 3 42.0 -6.0 304 9 292.9 292.9 278.3 293.4 0.14 12 780 2120 0.6 -46.4 1 47.0 -7.0 300 11 293.9 293.9 278.7 294.2 0.08 13 766 2265 0.4 -45.6 2 46.0 -7.2 294 15 295.2 295.2 279.3 295.5 0.08 14 760 2328 0.6 -25.4 12 26.0 -6.1 290 17 296.1 296.2 280.5 298.2 0.64 15 749 2445 0.2 -24.8 13 25.0 -6.3 285 20 296.9 297.0 281.0 299.1 0.68 16 734 2607 0.8 -28.2 9 29.0 -6.4 285 25 299.3 299.4 281.7 301.0 0.51 17 721 2751 0.2 -21.8 17 22.0 -6.1 285 29 300.2 300.3 282.7 303.2 0.93 18 700 2987 -0.9 -26.9 12 26.0 -7.5 275 34 301.5 301.6 282.8 303.5 0.60 19 688 3124 -1.5 -31.5 8 30.0 -8.3 273 36 302.3 302.4 282.8 303.7 0.40 20 668 3358 -3.1 -28.1 12 25.0 -9.1 270 40 303.1 303.2 283.4 305.0 0.57 21 663 3418 -2.3 -35.3 6 33.0 -9.2 269 41 304.6 304.7 283.7 305.6 0.29 22 637 3733 -3.9 -34.9 7 31.0 -10.3 265 45 306.3 306.4 284.3 307.4 0.31 23 577 4503 -10.1 -43.1 5 33.0 -15.1 265 44 307.9 307.9 284.7 308.4 0.15 24 570 4597 -10.7 -42.7 5 32.0 -15.6 265 45 308.2 308.3 284.8 308.8 0.16 25 543 4968 -13.1 -47.1 4 34.0 -17.6 266 48 309.7 309.7 285.3 310.0 0.10 26 533 5109 -13.9 -43.9 6 30.0 -18.1 267 49 310.4 310.4 285.7 310.9 0.15 27 531 5138 -14.1 -41.1 8 27.0 -18.1 267 49 310.5 310.5 285.7 311.2 0.20 28 513 5398 -16.3 -31.3 26 15.0 -19.1 269 51 310.9 311.0 286.3 312.8 0.55 29 510 5442 -16.7 -28.7 35 12.0 -19.1 269 52 310.9 311.0 286.5 313.3 0.70 30 508 5471 -16.9 -28.9 35 12.0 -19.3 269 52 311.0 311.1 286.5 313.4 0.69 31 500 5590 -17.7 -27.7 41 10.0 -19.8 270 53 311.5 311.6 286.8 314.1 0.78 32 465 6131 -22.3 -26.6 68 4.3 -23.2 270 59 312.3 312.4 287.2 315.4 0.93 33 463 6163 -22.5 -28.5 58 6.0 -23.6 271 60 312.4 312.6 287.1 315.1 0.79 34 461 6195 -21.9 -37.9 22 16.0 -24.1 271 60 313.5 313.6 287.0 314.7 0.32 35 458 6243 -21.5 -41.5 15 20.0 -24.1 271 61 314.6 314.7 287.2 315.4 0.22 36 451 6357 -22.1 -46.1 9 24.0 -24.7 272 62 315.3 315.3 287.3 315.8 0.14 37 446 6439 -22.9 -44.9 12 22.0 -25.4 273 63 315.3 315.3 287.3 315.8 0.16 38 434 6639 -24.7 -34.7 39 10.0 -26.2 275 66 315.4 315.5 287.8 317.1 0.46 39 426 6775 -25.9 -36.9 35 11.0 -27.3 276 68 315.6 315.7 287.8 316.9 0.38 40 400 7230 -28.9 -44.9 20 16.0 -30.4 280 74 317.4 317.5 288.1 318.1 0.17 41 399 7248 -28.9 -44.9 20 16.0 -30.4 280 74 317.7 317.7 288.2 318.3 0.18 42 393 7356 -29.7 -44.7 22 15.0 -31.1 282 74 318.0 318.0 288.3 318.7 0.18 43 382 7556 -31.7 -43.7 30 12.0 -32.8 284 75 317.9 318.0 288.3 318.7 0.21 44 379 7612 -32.3 -43.3 33 11.0 -33.3 285 75 317.9 317.9 288.3 318.7 0.22 45 378 7630 -32.5 -41.5 40 9.0 -33.4 285 75 317.9 317.9 288.3 318.8 0.27 46 370 7780 -33.7 -40.7 49 7.0 -34.4 285 76 318.2 318.3 288.5 319.3 0.30 47 349 8186 -37.1 -43.1 54 6.0 -37.6 285 80 319.0 319.0 288.7 319.9 0.24 48 329 8590 -40.3 -50.3 33 10.0 -40.8 285 84 320.0 320.0 288.9 320.5 0.12 49 318 8820 -42.5 -51.5 37 9.0 -42.9 285 86 320.1 320.1 288.9 320.5 0.10 50 316 8862 -42.7 -52.7 33 10.0 -43.2 285 86 320.4 320.4 289.0 320.7 0.09 51 304 9122 -44.3 -52.3 41 8.0 -44.6 285 88 321.7 321.7 289.4 322.1 0.10 52 300 9210 -45.1 -53.1 40 8.0 -45.4 285 92 321.8 321.8 289.4 322.1 0.09 53 283 9596 -48.5 -56.5 39 8.0 -48.7 287 95 322.3 322.3 289.5 322.6 0.06 54 275 9784 -49.9 -55.9 49 6.0 -50.1 287 96 323.0 323.0 289.8 323.2 0.07 55 268 9952 -51.1 -58.1 43 7.0 -51.3 288 97 323.6 323.6 289.9 323.8 0.06 56 265 10025 -51.9 -57.9 48 6.0 -52.1 288 97 323.5 323.5 289.9 323.7 0.06 57 250 10400 -54.7 -62.7 37 8.0 -54.8 290 100 324.7 324.8 290.2 324.9 0.03 58 239 10689 -55.7 -66.8 24 11.1 -55.9 295 108 327.4 327.4 291.0 327.5 0.02 59 229 10963 -56.7 -70.7 16 14.0 -56.9 290 106 329.9 329.9 291.7 330.0 0.01 60 200 11830 -55.1 -78.1 4 23.0 -55.4 275 92 345.5 345.5 295.6 345.5 0.00 61 150 13650 -58.5 -83.5 3 25.0 -58.7 265 75 369.3 369.3 300.4 369.3 0.00 62 100 16150 -63.3 -86.3 3 23.0 -63.5 265 61 405.4 405.4 305.9 405.4 0.00 63 95 16466 -62.5 -86.5 3 24.0 -62.7 265 61 413.0 413.0 306.9 413.0 0.00 64 83 17296 -64.3 -87.3 3 23.0 -64.5 275 55 425.6 425.6 308.3 425.6 0.00 65 80 17523 -62.5 -87.5 2 25.0 -62.8 278 53 433.8 433.8 309.3 433.8 0.00 66 74 18001 -65.3 -88.3 3 23.0 -65.5 256 45 437.7 437.7 309.6 437.7 0.00 67 70 18340 -64.3 -88.3 2 24.0 -64.6 280 38 446.8 446.8 310.6 446.8 0.00 68 61 19189 -61.5 -87.5 2 26.0 -61.9 287 33 471.0 471.0 312.7 471.0 0.00 69 55 19828 -64.3 -89.3 2 25.0 -64.6 263 25 478.7 478.7 313.4 478.7 0.00 70 53 20055 -63.5 -89.5 2 26.0 -63.8 241 27 485.7 485.7 313.9 485.7 0.00 71 53 20055 -61.3 -88.3 2 27.0 -61.7 241 27 490.8 490.8 314.3 490.8 0.00 72 52 20174 -58.9 -87.9 1 29.0 -59.5 253 23 499.0 499.1 314.9 499.1 0.00 73 50 20420 -59.5 -87.5 1 28.0 -60.1 325 7 503.3 503.3 315.2 503.3 0.00 74 45 21075 -61.7 -88.7 2 27.0 -62.2 275 16 513.3 513.3 315.9 513.3 0.00 75 38 22127 -58.7 -87.7 1 29.0 -59.6 265 15 546.4 546.4 317.9 546.4 0.00 76 36 22465 -60.5 -87.5 2 27.0 -61.2 312 12 550.3 550.3 318.1 550.3 0.01 77 31 23396 -59.9 -87.9 1 28.0 -60.8 289 8 575.9 575.9 319.5 575.9 0.01 78 30 23600 -60.9 -87.9 2 27.0 -61.7 295 11 578.6 578.6 319.6 578.7 0.01 79 27 24253 -62.1 -89.1 2 27.0 -62.9 316 11 592.9 592.9 320.3 593.0 0.01 80 25 24728 -61.9 -89.9 1 28.0 -62.8 6 10 606.7 606.7 320.9 606.7 0.00 81 24 24983 -59.1 -88.1 1 29.0 -60.3 290 10 622.0 622.0 321.6 622.0 0.01 82 20 26130 -57.3 -86.3 1 29.0 -59.0 330 4 660.8 660.8 323.1 660.9 0.01 83 19 26454 -58.1 -87.1 1 29.0 -59.8 329 6 668.1 668.1 323.3 668.1 0.01 84 16 27551 -53.5 -85.5 1 32.0 -56.5 318 13 716.7 716.7 325.0 716.9 0.02 85 14 28416 -51.1 -84.1 1 33.0 -55.2 52 18 752.8 752.8 326.0 753.0 0.02 86 13 28899 -50.1 -83.1 1 33.0 -54.7 356 10 772.4 772.4 326.5 772.6 0.03 87 13 28899 -50.7 -83.7 1 33.0 -55.1 356 10 770.3 770.3 326.5 770.5 0.03 88 12 29423 -49.3 -83.3 1 34.0 -54.5 355 13 793.1 793.1 327.1 793.4 0.03 89 11 29993 -50.3 -83.3 1 33.0 -55.4 10 14 809.4 809.4 327.5 809.7 0.03 90 10 30620 -47.5 -82.5 1 35.0 -54.1 350 10 842.2 842.3 328.2 842.7 0.04 91 9.6 30890 -46.5 -81.5 1 35.0 -53.7 352 12 855.9 855.9 328.5 856.4 0.05 92 7.2 32777 -52.1 -84.1 1 32.0 -57.8 4 27 906.3 906.4 329.5 906.8 0.05 93 7.0 32960 -51.3 -84.3 1 33.0 -57.5 5 29 917.0 917.0 329.8 917.5 0.05 94 6.9 33054 -50.7 -83.7 1 33.0 -57.2 923.3 923.3 329.9 923.8 0.05 95 6.1 33852 -53.5 -85.5 1 32.0 -59.2 944.3 944.4 330.2 944.8 0.04 96 5.9 34066 -53.1 -85.1 1 32.0 -59.0 955.1 955.1 330.4 955.6 0.05 TRP 229 10963 -56.7 -70.7 16 14.0 -56.9 290 106 329.9 329.9 291.7 330.0 0.01 WND 239 10689 -55.7 -66.8 24 11.1 -55.9 295 108 327.4 327.4 291.0 327.5 0.02 Sounding variables and indices 1000-500 mb thick: 5448.00 m Freezing level: 983.00 mb = 279.43 m = 916.74 ft Freezing level: 836.43 mb = 1559.03 m = 5114.88 ft Freezing level: 717.18 mb = 2793.68 m = 9165.52 ft Wetbulb zero: Below ground Precipitable water: 0.21 inches Sfc-500 mean rel hum: 21.91 % Est. max temperature: 11.07 C = 51.93 F Sfc-Lift cond lev (LCL): 917.00 mb = 831.12 m = 2726.75 ft T: -4.72 C 700-500 lapse rate: 6.45 C/km ThetaE index: 0.49 C Layer 1000.0- 983.0 mb Conv cond level (CCL): 521.58 mb = 5272.61 m = 17298.38 ft Mean mixing ratio: 2.24 g/kg Conv temperature: 38.14 C = 100.66 F Cap Strength: 25.33 C Lifted Index: 25.52 C Risk: None Lifted Index @300 mb: 29.00 C Lifted Index @700 mb: 21.11 C Showalter Index: 19.34 C Risk: None Total Totals Index: 19.40 C Risk: None Vertical Totals Index: 16.20 C Cross Totals Index: 3.20 C K Index: -24.30 Risk: None Sweat Index: 79.00 Risk: None Energy Index: 5.41 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.60 J/kg Max Up Vert Vel: 3.35 m/s Conv Inhibition (B-): 64676.66 J/kg Cap Strength: 25.41 C Lift Cond Lev (LCL): 874.76 mb = 1201.90 m = 3943.19 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 310 at 25 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 1007 98 350 5 0.9 -4.9 | 121 22 -18.7 11.2 1 1000 142 330 14 7.0 -12.1 | 108 13 -12.5 4.0 2 980 305 335 24 10.1 -21.8 | 59 11 -9.4 -5.6 3 943 610 325 28 16.1 -22.9 | 27 8 -3.5 -6.8 4 925 763 330 27 13.5 -23.4 | 40 9 -6.0 -7.2 5 907 914 335 28 11.8 -25.4 | 40 12 -7.7 -9.2 6 873 1219 350 15 2.6 -14.8 | 95 17 -16.9 1.4 7 850 1430 345 13 3.4 -12.6 | 102 17 -16.2 3.6 8 840 1524 350 13 2.3 -12.8 | 101 18 -17.3 3.3 9 809 1829 305 9 7.4 -5.2 | 132 16 -12.1 11.0 10 779 2134 300 11 9.5 -5.5 | 137 15 -10.0 10.6 11 750 2438 285 20 19.3 -5.2 | 179 11 -0.2 11.0 12 722 2743 285 29 28.0 -7.5 | 225 12 8.5 8.6 13 700 2987 275 34 33.9 -3.0 | 227 19 14.3 13.2 14 642 3658 265 45 44.8 3.9 | 232 32 25.3 20.1 15 593 4267 265 43 42.8 3.7 | 230 31 23.3 19.9 16 548 4877 265 47 46.8 4.1 | 233 34 27.3 20.2 17 500 5590 270 53 53.0 -0.0 | 244 37 33.5 16.1 18 486 5791 275 53 52.8 -4.6 | 251 35 33.3 11.5 19 467 6096 270 59 59.0 -0.0 | 248 43 39.5 16.1 20 400 7230 280 74 72.9 -12.8 | 266 53 53.4 3.3 21 378 7620 285 75 72.4 -19.4 | 274 53 52.9 -3.3 22 331 8534 285 84 81.1 -21.7 | 275 62 61.6 -5.6 23 303 9144 285 88 85.0 -22.8 | 276 66 65.5 -6.6 24 300 9210 285 92 88.9 -23.8 | 276 70 69.3 -7.7 25 250 10400 290 100 94.0 -34.2 | 284 77 74.4 -18.1 26 239 10689 295 108 97.9 -45.6 | 291 84 78.4 -29.5 27 229 10963 290 106 99.6 -36.3 | 284 83 80.1 -20.1 28 229 10973 295 108 97.9 -45.6 | 291 84 78.4 -29.5 29 208 11582 280 82 80.8 -14.2 | 268 61 61.2 1.9 30 200 11830 275 92 91.6 -8.0 | 264 73 72.1 8.1 31 189 12192 280 99 97.5 -17.2 | 271 78 78.0 -1.1 32 150 13650 265 75 74.7 6.5 | 248 60 55.2 22.7 33 148 13716 270 70 70.0 -0.0 | 252 53 50.5 16.1 34 134 14326 270 80 80.0 -0.0 | 255 63 60.5 16.1 35 116 15240 260 55 54.2 9.6 | 233 43 34.6 25.7 36 110 15545 255 64 61.8 16.6 | 232 53 42.3 32.7 37 100 16150 265 61 60.8 5.3 | 243 46 41.2 21.5 38 100 16154 260 52 51.2 9.0 | 232 40 31.7 25.2 39 95 16459 265 61 60.8 5.3 | 243 46 41.2 21.5 40 78 17678 280 52 51.2 -9.0 | 257 32 31.7 7.1 41 74 17983 255 45 43.5 11.6 | 221 37 23.9 27.8 42 71 18288 270 45 45.0 -0.0 | 238 30 25.5 16.1 43 70 18340 280 38 37.4 -6.6 | 242 20 17.9 9.5 44 67 18593 285 40 38.6 -10.4 | 253 20 19.1 5.8 45 64 18898 280 43 42.3 -7.5 | 249 24 22.8 8.7 46 58 19507 295 22 19.9 -9.3 | 183 7 0.4 6.8 47 53 20117 235 27 22.1 15.5 | 185 32 2.6 31.6 48 50 20420 325 7 4.0 -5.7 | 124 19 -15.5 10.4 49 50 20422 285 27 26.1 -7.0 | 216 11 6.6 9.1 50 48 20726 330 7 3.5 -6.1 | 122 19 -16.0 10.1 51 45 21031 275 15 14.9 -1.3 | 163 16 -4.6 14.8 52 43 21336 275 19 18.9 -1.7 | 178 14 -0.6 14.5 53 41 21641 265 13 13.0 1.1 | 159 18 -6.6 17.3 54 39 21946 240 16 13.9 8.0 | 167 25 -5.7 24.1 55 35 22555 325 11 6.3 -9.0 | 118 15 -13.2 7.1 56 32 23165 285 1 1.0 -0.3 | 131 24 -18.6 15.9 57 31 23470 290 10 9.4 -3.4 | 141 16 -10.1 12.7 58 30 23600 295 11 10.0 -4.6 | 140 15 -9.6 11.5 59 28 24079 290 12 11.3 -4.1 | 146 15 -8.2 12.0 60 26 24384 335 11 4.6 -10.0 | 113 16 -14.9 6.2 61 25 24689 20 10 -3.4 -9.4 | 106 24 -22.9 6.7 62 24 24994 290 10 9.4 -3.4 | 141 16 -10.1 12.7 63 23 25298 310 10 7.7 -6.4 | 129 15 -11.9 9.7 64 21 25908 335 15 6.3 -13.6 | 101 13 -13.2 2.5 65 20 26130 330 4 2.0 -3.5 | 126 22 -17.5 12.7 66 16 27432 325 13 7.5 -10.6 | 114 13 -12.1 5.5 67 16 27737 310 12 9.2 -7.7 | 129 13 -10.3 8.4 68 15 28042 55 10 -8.2 -5.7 | 111 30 -27.7 10.4 69 14 28346 55 20 -16.4 -11.5 | 97 36 -35.9 4.7 70 14 28651 45 12 -8.5 -8.5 | 105 29 -28.0 7.6 71 13 28956 350 10 1.7 -9.8 | 109 19 -17.8 6.3 72 12 29261 10 14 -2.4 -13.8 | 96 22 -22.0 2.3 73 12 29566 345 13 3.4 -12.6 | 102 17 -16.2 3.6 74 11 30175 20 14 -4.8 -13.2 | 97 24 -24.3 3.0 75 10 30620 350 10 1.7 -9.8 | 109 19 -17.8 6.3 76 7 32960 5 29 -2.5 -28.9 | 60 25 -22.0 -12.8 Wind Parameters Mean winds (0-6000m): 279.6 at 33.8 knts Storm direction: 309.6 at 25.3 knts Shear (0-3000m) pos: 1.9 neg: 7.7 tot: 9.6 10-3/s Storm rel Dir Shear (0-3000m): 108.1 deg Storm rel helicity (0-3000m) pos: 158.3 neg: -59.7 tot: 98.6 m^2/s^2 ave: 32.9 10^-3 m/s^2 rel: 0.30 Storm rel vorticity (0-3000m) horiz: 14.7 stream: 4.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.06 Bulk Shear: 92.33 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 ------------------------------------------------------------------------------- 500 331 22 71 9| 0.0 24.1 24.1| 0.0 -59.7 -59.7 -119.3 -0.76| 26.2-19.9 1000 332 24 58 10| 5.6 12.0 17.6| 31.9 -59.7 -27.8 -27.8 -0.24| 20.0 -4.8 1500 335 21 75 11| 3.7 5.8 9.5| 68.4 -59.7 8.7 5.8 -0.01| 16.9 -0.2 2000 332 18 90 11| 2.8 4.9 7.7|100.0 -59.7 40.3 20.2 0.12| 14.8 1.8 2500 324 18 99 9| 2.2 6.9 9.2|140.0 -59.7 80.4 32.1 0.28| 14.9 4.2 3000 313 20 117 5| 1.9 7.7 9.6|158.3 -59.7 98.6 32.9 0.30| 14.7 4.4 4000 293 26 214 8| 1.4 6.8 8.2|165.1 -66.7 98.4 24.6 0.27| 12.6 3.4 5000 283 30 225 13| 0.7 5.6 6.3|201.8 -68.3 133.4 26.7 0.29| 10.8 3.1 6000 280 34 233 17| 0.2 5.2 5.4|285.8 -89.8 196.0 32.7 0.30| 10.4 3.2 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251203.12.gif