UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120200.upa.cvt Date: 0000Z 2 DEC 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 2 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 1015 98 1.2 -5.8 60 7.0 -1.3 0 0 273.2 273.6 271.1 279.9 2.44 1 1013 113 3.6 -7.4 44 11.0 -0.3 11 1 275.7 276.1 272.2 281.8 2.16 2 1011 128 4.4 -7.6 41 12.0 0.1 23 1 276.7 277.0 272.7 282.7 2.13 3 1000 211 3.8 -7.2 44 11.0 -0.2 85 4 277.0 277.3 273.0 283.2 2.22 4 925 838 -1.9 -8.9 59 7.0 -4.2 150 7 277.4 277.7 273.1 283.3 2.10 5 882 1214 -5.1 -9.4 72 4.3 -6.5 160 11 277.9 278.2 273.3 283.9 2.12 6 874 1285 -5.5 -10.5 68 5.0 -7.1 169 12 278.2 278.5 273.3 283.7 1.96 7 872 1303 -5.1 -12.1 58 7.0 -7.2 172 13 278.8 279.1 273.3 283.7 1.73 8 871 1312 -4.9 -12.9 53 8.0 -7.2 173 13 279.1 279.3 273.3 283.7 1.62 9 870 1321 -3.5 -16.5 36 13.0 -7.0 174 13 280.6 280.8 273.5 284.2 1.21 10 866 1357 -2.7 -19.7 26 17.0 -7.0 179 14 281.8 282.0 273.8 284.6 0.92 11 864 1376 -2.7 -20.7 24 18.0 -7.2 182 14 282.0 282.1 273.8 284.6 0.85 12 861 1403 -2.9 -20.9 24 18.0 -7.4 186 15 282.1 282.2 273.8 284.6 0.84 13 850 1505 -2.5 -25.5 15 23.0 -7.6 200 17 283.5 283.6 274.2 285.3 0.56 14 844 1561 -2.1 -27.1 13 25.0 -7.5 201 17 284.5 284.6 274.6 286.1 0.49 15 813 1858 -2.9 -32.9 8 30.0 -8.6 212 20 286.7 286.8 275.5 287.7 0.29 16 809 1897 -1.9 -42.9 3 41.0 -8.3 215 21 288.2 288.2 275.9 288.6 0.11 17 796 2026 -1.5 -44.5 2 43.0 -8.2 223 24 290.0 290.0 276.8 290.3 0.09 18 790 2086 -1.3 -48.3 1 47.0 -8.1 227 26 290.8 290.8 277.2 291.0 0.06 19 749 2510 -1.7 246 31 294.8 20 737 2638 -2.1 248 32 295.8 21 708 2956 -3.3 -33.3 8 30.0 -9.4 243 32 297.9 297.9 280.9 299.0 0.33 22 707 2967 -3.3 -32.3 9 29.0 -9.4 243 32 298.0 298.0 281.0 299.2 0.36 23 700 3046 -3.9 -28.9 12 25.0 -9.5 240 32 298.2 298.3 281.3 299.8 0.50 24 685 3217 -5.3 -19.3 32 14.0 -9.3 243 34 298.5 298.7 282.3 302.3 1.21 25 677 3309 -6.1 -15.1 49 9.0 -8.9 244 35 298.6 298.9 283.0 304.0 1.75 26 665 3449 -6.9 -11.9 67 5.0 -8.7 251 34 299.2 299.6 283.9 306.3 2.31 27 658 3531 -7.1 -13.1 62 6.0 -9.1 256 33 299.9 300.3 284.0 306.4 2.12 28 653 3591 -6.7 -16.7 45 10.0 -9.8 260 33 301.0 301.3 283.8 306.0 1.58 29 642 3724 -6.9 -20.9 32 14.0 -10.8 265 33 302.2 302.4 283.7 305.9 1.12 30 630 3871 -7.5 -21.5 32 14.0 -11.3 265 37 303.2 303.4 284.1 306.7 1.09 31 623 3958 -7.7 -19.7 38 12.0 -11.1 265 39 303.9 304.2 284.6 308.1 1.29 32 602 4224 -9.5 -17.5 52 8.0 -11.9 265 45 304.8 305.1 285.3 310.0 1.61 33 594 4327 -10.3 -20.3 44 10.0 -13.0 264 46 305.1 305.3 285.0 309.2 1.28 34 582 4484 -11.3 -20.3 47 9.0 -13.7 262 48 305.7 305.9 285.3 309.9 1.31 35 578 4537 -11.7 -24.7 33 13.0 -14.8 261 48 305.8 306.0 284.8 308.8 0.89 36 572 4617 -12.5 -20.5 51 8.0 -14.6 260 49 305.8 306.0 285.3 310.1 1.31 37 567 4684 -12.9 -20.9 51 8.0 -15.0 258 49 306.1 306.3 285.4 310.3 1.27 38 565 4711 -13.1 -23.1 43 10.0 -15.6 258 49 306.2 306.4 285.2 309.6 1.05 39 564 4724 -13.3 -21.3 51 8.0 -15.4 258 50 306.1 306.3 285.4 310.1 1.24 40 560 4779 -13.5 -26.5 33 13.0 -16.4 257 50 306.5 306.6 284.9 309.1 0.78 41 554 4861 -14.1 -25.1 39 11.0 -16.6 256 51 306.7 306.9 285.2 309.7 0.90 42 552 4888 -14.3 -27.3 32 13.0 -17.1 255 51 306.8 306.9 285.1 309.3 0.74 43 548 4943 -14.7 -24.7 42 10.0 -17.0 255 52 307.0 307.1 285.4 310.1 0.94 44 524 5281 -17.7 -23.7 59 6.0 -19.1 257 57 307.3 307.5 285.7 310.9 1.08 45 520 5338 -18.1 -25.1 54 7.0 -19.6 258 57 307.5 307.7 285.5 310.7 0.96 46 510 5483 -19.3 -25.3 59 6.0 -20.5 262 56 307.8 307.9 285.7 310.9 0.96 47 508 5512 -19.5 -24.5 64 5.0 -20.6 262 56 307.9 308.1 285.8 311.3 1.03 48 505 5556 -19.5 -27.5 49 8.0 -21.1 263 56 308.4 308.5 285.7 311.0 0.79 49 500 5630 -20.1 -25.1 64 5.0 -21.1 265 56 308.5 308.7 286.0 311.8 1.00 50 494 5719 -20.9 -24.1 75 3.2 -21.6 265 57 308.6 308.8 286.1 312.3 1.10 51 492 5749 -20.9 -25.5 66 4.6 -21.8 265 57 309.0 309.2 286.1 312.2 0.98 52 482 5899 -21.5 -27.5 58 6.0 -22.7 265 58 310.1 310.2 286.4 312.9 0.83 53 473 6037 -22.3 -27.3 64 5.0 -23.2 265 59 310.7 310.9 286.6 313.7 0.86 54 465 6162 -23.1 -30.1 53 7.0 -24.3 265 59 311.3 311.4 286.6 313.6 0.67 55 400 7240 -31.5 -37.5 55 6.0 -32.1 270 65 314.0 314.1 287.2 315.4 0.38 56 300 9220 -46.1 -53.1 45 7.0 -46.4 265 71 320.4 320.4 289.0 320.7 0.09 57 250 10400 -55.1 -63.1 36 8.0 -55.2 270 85 324.1 324.2 290.0 324.3 0.03 58 200 11800 -62.7 -70.7 33 8.0 -62.8 270 115 333.5 333.5 292.7 333.5 0.01 59 196 11924 -63.1 -71.5 31 8.4 -63.1 270 117 334.8 334.8 293.0 334.9 0.01 60 191 12083 -63.5 -72.5 28 9.0 -63.6 275 117 336.6 336.6 293.5 336.7 0.01 61 150 13570 -62.1 -84.1 4 22.0 -62.3 270 102 363.1 363.1 299.3 363.1 0.00 62 100 16070 -63.5 -86.5 3 23.0 -63.7 260 70 405.0 405.0 305.9 405.0 0.00 63 94 16450 -62.3 -87.3 2 25.0 -62.6 260 70 414.6 414.6 307.1 414.6 0.00 64 87 16924 -64.1 -87.1 3 23.0 -64.3 264 74 420.3 420.3 307.7 420.3 0.00 65 78 17594 -61.9 -87.9 2 26.0 -62.2 262 57 438.2 438.2 309.7 438.2 0.00 66 74 17918 -63.5 -88.5 2 25.0 -63.7 259 54 441.5 441.5 310.0 441.5 0.00 67 71 18172 -61.7 -87.7 2 26.0 -62.0 256 52 450.6 450.6 310.9 450.6 0.00 68 71 18172 -61.7 -87.7 2 26.0 -62.0 256 52 450.6 450.6 310.9 450.6 0.00 69 70 18260 -61.9 -87.9 2 26.0 -62.2 255 51 452.0 452.0 311.0 452.0 0.00 70 67 18531 -62.7 -88.7 2 26.0 -63.0 261 53 455.9 455.9 311.4 455.9 0.00 71 60 19215 -60.3 -88.3 1 28.0 -60.7 256 45 475.9 475.9 313.1 475.9 0.00 72 56 19644 -62.3 -88.3 2 26.0 -62.7 272 45 480.8 480.8 313.5 480.8 0.00 73 53 19986 -59.7 -87.7 1 28.0 -60.3 278 36 494.5 494.5 314.5 494.5 0.00 74 50 20350 -60.5 -88.5 1 28.0 -61.0 265 39 500.9 500.9 315.0 500.9 0.00 75 45 21003 -61.5 -88.5 2 27.0 -62.0 274 43 513.8 513.8 315.9 513.8 0.00 76 42 21430 -61.5 -88.5 2 27.0 -62.1 297 27 524.0 524.0 316.5 524.1 0.00 77 39 21891 -58.7 -87.7 1 29.0 -59.5 282 25 542.4 542.4 317.6 542.4 0.00 78 36 22391 -60.5 -88.5 1 28.0 -61.2 317 21 550.3 550.3 318.1 550.3 0.00 79 34 22746 -60.5 -88.5 1 28.0 -61.3 317 7 559.3 559.3 318.6 559.3 0.00 80 33 22932 -58.5 -88.5 1 30.0 -59.5 315 5 569.4 569.4 319.1 569.5 0.00 81 30 23530 -58.9 -87.9 1 29.0 -59.9 330 14 584.1 584.1 319.9 584.1 0.01 82 27 24195 -57.9 -87.9 1 30.0 -59.2 5 8 604.7 604.7 320.8 604.8 0.01 83 27 24195 -58.7 -88.7 1 30.0 -59.9 5 8 602.5 602.5 320.7 602.5 0.01 84 26 24434 -55.9 -86.9 1 31.0 -57.5 14 6 617.0 617.0 321.3 617.0 0.01 85 23 25209 -59.9 -87.9 1 28.0 -61.1 343 14 627.2 627.2 321.8 627.3 0.01 86 22 25488 -57.7 -88.7 1 31.0 -59.3 328 14 641.8 641.8 322.4 641.9 0.01 87 20 26090 -58.5 -87.5 1 29.0 -60.0 315 13 657.1 657.1 323.0 657.2 0.01 88 18 26749 -60.3 -88.3 1 28.0 -61.7 359 17 671.5 671.5 323.4 671.6 0.01 89 17 27109 -55.7 -87.7 1 32.0 -58.0 0 19 697.4 697.4 324.3 697.4 0.01 90 16 27496 -55.1 -86.1 1 31.0 -57.7 354 21 711.5 711.5 324.8 711.6 0.01 91 15 27908 -54.9 -86.9 1 32.0 -57.7 16 18 725.4 725.4 325.2 725.5 0.01 92 14 28348 -56.5 -86.5 1 30.0 -59.0 20 16 734.5 734.5 325.5 734.6 0.02 93 12 29329 -55.1 -86.1 1 31.0 -58.3 360 24 772.5 772.5 326.5 772.7 0.02 94 10 30480 -59.9 -88.9 1 29.0 -62.2 360 33 796.0 796.0 327.1 796.1 0.01 95 8.6 31417 -62.1 -90.1 1 28.0 -64.2 822.5 822.5 327.8 822.6 0.01 96 8.5 31490 -61.7 -89.7 1 28.0 -63.9 826.8 826.8 327.9 826.9 0.01 TRP 191 12083 -63.5 -72.5 28 9.0 -63.6 275 117 336.6 336.6 293.5 336.7 0.01 WND 196 11924 -63.1 -71.5 31 8.4 -63.1 270 117 334.8 334.8 293.0 334.9 0.01 Sounding variables and indices 1000-500 mb thick: 5419.00 m Freezing level: 950.00 mb = 629.00 m = 2063.62 ft Wetbulb zero: Below ground Precipitable water: 0.28 inches Sfc-500 mean rel hum: 42.07 % Est. max temperature: 9.96 C = 49.92 F Sfc-Lift cond lev (LCL): 909.95 mb = 967.40 m = 3173.86 ft T: -3.00 C 700-500 lapse rate: 6.27 C/km ThetaE index: 0.14 C Layer 874.0- 871.0 mb Conv cond level (CCL): 544.06 mb = 4997.46 m = 16395.68 ft Mean mixing ratio: 2.16 g/kg Conv temperature: 35.18 C = 95.32 F Cap Strength: 21.32 C Lifted Index: 21.36 C Risk: None Lifted Index @300 mb: 26.42 C Lifted Index @700 mb: 16.41 C Showalter Index: 19.72 C Risk: None Total Totals Index: 12.20 C Risk: None Vertical Totals Index: 17.60 C Cross Totals Index: -5.40 C K Index: -32.90 Risk: None Sweat Index: 228.29 Risk: None Energy Index: 5.66 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.64 J/kg Max Up Vert Vel: 2.30 m/s Conv Inhibition (B-): 60002.84 J/kg Cap Strength: 21.14 C Lift Cond Lev (LCL): 836.33 mb = 1633.56 m = 5359.40 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 282 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 1015 98 0 0 -0.0 -0.0 | 102 25 -24.0 4.9 1 1000 211 85 4 -4.0 -0.3 | 99 28 -28.0 4.6 2 988 305 105 4 -3.9 1.0 | 102 28 -27.9 6.0 3 952 610 135 4 -2.8 2.8 | 106 28 -26.8 7.8 4 925 838 150 7 -3.5 6.1 | 112 30 -27.5 11.0 5 916 914 155 7 -3.0 6.3 | 113 29 -27.0 11.3 6 881 1219 160 11 -3.8 10.3 | 119 32 -27.8 15.3 7 850 1505 200 17 5.8 16.0 | 139 28 -18.2 20.9 8 848 1524 200 17 5.8 16.0 | 139 28 -18.2 20.9 9 816 1829 210 19 9.5 16.5 | 146 26 -14.5 21.4 10 785 2134 230 27 20.7 17.4 | 172 23 -3.3 22.3 11 756 2438 245 31 28.1 13.1 | 193 18 4.1 18.0 12 727 2743 250 32 30.1 10.9 | 201 17 6.1 15.9 13 700 3046 240 32 27.7 16.0 | 190 21 3.7 20.9 14 673 3353 245 35 31.7 14.8 | 201 21 7.7 19.7 15 646 3658 265 32 31.9 2.8 | 226 11 7.9 7.7 16 597 4267 265 46 45.8 4.0 | 248 24 21.8 8.9 17 552 4877 255 51 49.3 13.2 | 234 31 25.3 18.1 18 530 5182 255 57 55.1 14.8 | 238 37 31.1 19.7 19 500 5630 265 56 55.8 4.9 | 253 33 31.8 9.8 20 469 6096 265 59 58.8 5.1 | 254 36 34.8 10.1 21 400 7240 270 65 65.0 -0.0 | 263 41 41.0 4.9 22 379 7620 270 72 72.0 -0.0 | 264 48 48.0 4.9 23 331 8534 265 77 76.7 6.7 | 258 54 52.7 11.6 24 303 9144 265 72 71.7 6.3 | 257 49 47.7 11.2 25 300 9220 265 71 70.7 6.2 | 257 48 46.7 11.1 26 290 9449 265 70 69.7 6.1 | 256 47 45.7 11.0 27 264 10058 265 72 71.7 6.3 | 257 49 47.7 11.2 28 250 10400 270 85 85.0 -0.0 | 265 61 61.0 4.9 29 228 10973 270 103 103.0 -0.0 | 266 79 79.0 4.9 30 200 11800 270 115 115.0 -0.0 | 267 91 91.0 4.9 31 196 11924 270 117 117.0 -0.0 | 267 93 93.0 4.9 32 191 12083 275 117 116.6 -10.2 | 273 93 92.6 -5.3 33 188 12192 270 117 117.0 -0.0 | 267 93 93.0 4.9 34 150 13570 270 102 102.0 -0.0 | 266 78 78.0 4.9 35 114 15240 265 77 76.7 6.7 | 258 54 52.7 11.6 36 109 15545 275 74 73.7 -6.4 | 272 50 49.7 -1.5 37 100 16070 260 70 68.9 12.2 | 249 48 44.9 17.1 38 94 16459 260 70 68.9 12.2 | 249 48 44.9 17.1 39 85 17069 265 75 74.7 6.5 | 257 52 50.7 11.5 40 81 17374 265 59 58.8 5.1 | 254 36 34.8 10.1 41 70 18260 255 51 49.3 13.2 | 234 31 25.3 18.1 42 70 18288 265 54 53.8 4.7 | 252 31 29.8 9.6 43 63 18898 255 52 50.2 13.5 | 235 32 26.2 18.4 44 60 19202 255 45 43.5 11.6 | 230 26 19.5 16.6 45 57 19507 270 49 49.0 -0.0 | 259 25 25.0 4.9 46 52 20117 280 33 32.5 -5.7 | 275 9 8.5 -0.8 47 50 20350 265 39 38.9 3.4 | 241 17 14.8 8.3 48 49 20422 260 31 30.5 5.4 | 212 12 6.5 10.3 49 45 21031 275 44 43.8 -3.8 | 267 20 19.8 1.1 50 43 21336 300 31 26.8 -15.5 | 345 11 2.8 -10.6 51 41 21641 290 20 18.8 -6.8 | 70 6 -5.2 -1.9 52 39 21946 280 26 25.6 -4.5 | 255 2 1.6 0.4 53 35 22555 330 19 9.5 -16.5 | 52 19 -14.5 -11.5 54 33 22860 310 1 0.8 -0.6 | 100 24 -23.2 4.3 55 32 23165 330 16 8.0 -13.9 | 61 18 -16.0 -8.9 56 30 23530 330 14 7.0 -12.1 | 67 18 -17.0 -7.2 57 29 23774 330 14 7.0 -12.1 | 67 18 -17.0 -7.2 58 28 24079 355 10 0.9 -10.0 | 78 24 -23.1 -5.0 59 26 24384 20 5 -1.7 -4.7 | 91 26 -25.7 0.2 60 25 24689 340 14 4.8 -13.2 | 67 21 -19.2 -8.2 61 24 24994 15 16 -4.1 -15.5 | 69 30 -28.1 -10.5 62 23 25298 330 13 6.5 -11.3 | 70 19 -17.5 -6.3 63 21 25908 325 16 9.2 -13.1 | 61 17 -14.8 -8.2 64 20 26090 315 13 9.2 -9.2 | 74 15 -14.8 -4.3 65 19 26518 300 15 13.0 -7.5 | 77 11 -11.0 -2.6 66 18 26822 15 18 -4.7 -17.4 | 67 31 -28.7 -12.5 67 16 27432 345 21 5.4 -20.3 | 50 24 -18.6 -15.4 68 15 27737 25 19 -8.0 -17.2 | 69 34 -32.0 -12.3 69 15 28042 10 17 -3.0 -16.7 | 66 29 -27.0 -11.8 70 13 28651 30 16 -8.0 -13.9 | 74 33 -32.0 -8.9 71 13 28956 20 22 -7.5 -20.7 | 63 35 -31.5 -15.7 72 12 29261 360 23 -0.0 -23.0 | 53 30 -24.0 -18.1 73 10 30480 360 33 -0.0 -33.0 | 41 37 -24.0 -28.1 Wind Parameters Mean winds (0-6000m): 251.6 at 32.7 knts Storm direction: 281.6 at 24.5 knts Shear (0-3000m) pos: 5.4 neg: 0.7 tot: 6.1 10-3/s Storm rel Dir Shear (0-3000m): 90.3 deg Storm rel helicity (0-3000m) pos: 308.3 neg: -23.5 tot: 284.7 m^2/s^2 ave: 94.9 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 9.9 stream: 7.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.02 Bulk Shear: 166.89 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 ------------------------------------------------------------------------------- 500 110 4 103 28| 4.1 0.0 4.1| 28.0 -10.2 17.8 35.7 0.30| 7.8 2.3 1000 138 5 108 29| 4.8 0.0 4.8| 69.3 -10.2 59.1 59.1 0.55| 7.1 3.9 1500 165 8 116 29| 6.0 0.0 6.0|170.2 -10.2 160.0 106.6 0.74| 9.5 7.0 2000 189 11 126 27| 6.7 0.0 6.7|248.6 -10.2 238.4 119.2 0.80| 10.4 8.3 2500 212 15 137 24| 6.5 0.0 6.5|303.8 -10.2 293.6 117.4 0.82| 10.7 8.7 3000 223 18 146 21| 5.4 0.7 6.1|308.3 -23.5 284.7 94.9 0.71| 9.9 7.0 4000 238 22 163 17| 5.5 0.5 6.0|374.3 -23.5 350.8 87.7 0.68| 10.6 7.2 5000 247 28 185 16| 4.4 1.9 6.3|391.1 -66.3 324.8 65.0 0.52| 10.3 5.3 6000 252 33 205 17| 4.2 1.5 5.7|487.1 -66.3 420.8 70.1 0.55| 9.8 5.3 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251202.00.gif