UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041512.upa.cvt Date: 1200Z 15 APR 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 15 APR 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 ------------------------------------------------------------------------------- 0 1000 26 230 5 SFC 993 98 16.6 12.6 77 4.0 14.1 230 5 290.3 292.0 287.6 316.5 9.26 2 990 123 18.6 10.6 60 8.0 13.8 233 6 292.6 294.0 287.3 315.8 8.13 3 987 149 19.0 9.0 52 10.0 13.1 236 7 293.2 294.6 286.8 314.3 7.31 4 986 157 19.0 9.0 52 10.0 13.1 237 8 293.3 294.6 286.9 314.4 7.32 5 972 277 18.0 9.0 56 9.0 12.7 252 14 293.5 294.9 287.1 314.9 7.42 6 946 504 16.6 2.6 39 14.0 9.3 262 18 294.4 295.3 284.8 308.7 4.88 7 925 691 14.8 1.8 41 13.0 8.1 260 20 294.4 295.3 284.7 308.2 4.71 8 866 1244 9.8 0.8 53 9.0 5.3 260 23 294.8 295.7 284.8 308.6 4.68 9 855 1350 9.2 1.2 57 8.0 5.2 260 25 295.3 296.2 285.2 309.6 4.88 10 850 1399 9.0 -1.0 49 10.0 4.2 260 26 295.6 296.3 284.5 307.9 4.18 11 848 1419 9.0 -1.0 49 10.0 4.2 260 26 295.8 296.5 284.7 308.2 4.19 12 818 1715 6.2 0.2 65 6.0 3.2 266 29 295.9 296.7 285.2 309.9 4.74 13 810 1796 5.8 -3.2 52 9.0 1.7 269 30 296.3 297.0 284.3 307.4 3.72 14 808 1816 5.6 -4.4 49 10.0 1.2 269 31 296.3 296.9 284.0 306.5 3.41 15 804 1857 5.8 -7.2 39 13.0 0.4 270 32 296.9 297.4 283.5 305.3 2.77 16 797 1928 5.8 -3.2 52 9.0 1.7 270 35 297.7 298.3 284.9 309.0 3.79 17 794 1959 5.8 -2.2 56 8.0 2.0 270 37 298.0 298.7 285.4 310.2 4.10 18 775 2157 5.2 -2.8 56 8.0 1.5 269 46 299.4 300.1 285.8 311.5 4.01 19 772 2189 5.8 -1.2 61 7.0 2.4 267 47 300.4 301.2 286.8 314.0 4.54 20 751 2415 5.8 -1.2 61 7.0 2.4 256 53 302.8 303.6 287.7 316.9 4.67 21 728 2668 3.6 -1.4 70 5.0 1.1 255 53 303.1 303.9 287.9 317.5 4.74 22 700 2986 1.8 -5.2 60 7.0 -1.3 255 57 304.5 305.2 287.4 315.9 3.71 23 697 3021 1.6 -5.4 60 7.0 -1.5 255 57 304.6 305.3 287.4 315.9 3.67 24 630 3824 -5.3 -8.1 81 2.8 -6.4 254 60 305.7 306.3 287.4 315.9 3.29 25 623 3912 -5.7 -8.4 81 2.7 -6.8 253 61 306.2 306.8 287.5 316.4 3.25 26 618 3975 -6.1 -9.5 77 3.4 -7.4 253 62 306.5 307.0 287.4 315.9 3.01 27 605 4141 -7.1 -7.1 100 0.0 -7.1 251 65 307.2 307.9 288.3 318.7 3.71 28 596 4257 -7.9 -8.2 98 0.3 -8.0 250 67 307.6 308.2 288.2 318.4 3.46 29 594 4284 -7.9 -8.6 95 0.7 -8.2 250 68 307.9 308.5 288.2 318.4 3.36 30 589 4349 -7.5 -10.3 80 2.8 -8.6 250 68 309.1 309.6 288.2 318.5 2.96 31 583 4429 -8.1 -10.4 83 2.3 -9.0 250 69 309.3 309.8 288.3 318.7 2.97 32 579 4482 -8.3 -13.3 67 5.0 -10.1 250 70 309.7 310.1 287.8 317.2 2.37 33 577 4509 -8.5 -12.8 71 4.3 -10.1 250 70 309.7 310.2 288.0 317.6 2.47 34 565 4672 -9.9 -15.9 61 6.0 -11.9 250 71 309.9 310.3 287.5 316.3 1.96 35 541 5005 -12.9 -17.9 66 5.0 -14.4 251 74 310.2 310.6 287.4 315.9 1.73 36 532 5132 -13.7 -20.7 55 7.0 -15.6 252 75 310.8 311.0 287.2 315.3 1.38 37 509 5466 -16.9 -18.1 90 1.2 -17.3 255 79 310.8 311.2 287.6 316.7 1.81 38 504 5540 -17.3 -19.8 81 2.5 -18.0 255 79 311.2 311.5 287.6 316.4 1.58 39 500 5600 -17.9 -19.9 84 2.0 -18.4 255 78 311.2 311.5 287.6 316.4 1.58 40 498 5630 -18.1 -19.5 89 1.4 -18.5 255 78 311.3 311.6 287.6 316.7 1.64 41 497 5645 -18.3 -19.4 91 1.1 -18.6 255 78 311.3 311.6 287.6 316.7 1.66 42 474 5998 -19.9 -21.9 84 2.0 -20.4 251 77 313.5 313.8 288.2 318.2 1.40 43 471 6045 -20.1 -22.4 82 2.3 -20.7 251 77 313.9 314.1 288.2 318.4 1.35 44 447 6431 -23.1 -24.9 85 1.8 -23.5 250 87 314.8 315.0 288.3 318.6 1.13 45 442 6513 -22.9 -25.1 82 2.2 -23.4 250 89 316.1 316.3 288.7 319.9 1.13 46 410 7061 -25.7 -28.4 78 2.7 -26.2 243 92 319.3 319.5 289.5 322.5 0.90 47 405 7150 -26.1 -28.4 81 2.3 -26.5 242 91 319.9 320.1 289.7 323.1 0.91 48 401 7222 -26.7 -28.9 82 2.2 -27.1 240 90 320.1 320.2 289.7 323.1 0.88 49 400 7240 -26.9 -29.2 81 2.3 -27.3 240 90 320.0 320.2 289.7 323.0 0.85 50 323 8747 -38.9 -42.9 66 4.0 -39.2 244 97 323.6 323.7 290.2 324.6 0.27 51 317 8875 -39.9 -43.8 66 3.9 -40.2 244 97 324.0 324.0 290.2 324.9 0.25 52 313 8962 -40.5 -42.4 82 1.9 -40.6 244 98 324.3 324.4 290.4 325.4 0.29 53 311 9006 -40.7 -43.8 72 3.1 -40.9 245 98 324.6 324.7 290.5 325.6 0.25 54 310 9028 -40.9 -44.6 67 3.7 -41.2 245 98 324.7 324.7 290.5 325.5 0.23 55 300 9250 -42.9 -46.4 68 3.5 -43.1 245 100 324.9 324.9 290.5 325.6 0.20 56 282 9663 -46.5 -50.8 61 4.3 -46.7 247 102 325.5 325.6 290.6 326.0 0.13 57 250 10450 -52.9 -63.9 25 11.0 -53.1 250 106 327.4 327.4 291.0 327.5 0.03 58 242 10658 -54.0 -64.7 26 10.7 -54.2 255 108 328.8 328.9 291.4 329.0 0.03 59 204 11737 -59.7 -68.7 30 9.0 -59.8 255 101 336.3 336.3 293.4 336.4 0.02 60 200 11860 -59.3 -71.3 20 12.0 -59.5 255 101 338.9 338.9 294.0 338.9 0.01 61 150 13700 -48.7 -81.7 1 33.0 -49.4 255 82 386.2 386.2 303.2 386.2 0.00 62 100 16300 -60.9 -86.9 2 26.0 -61.2 255 56 410.1 410.1 306.5 410.1 0.00 63 84 17371 -65.5 -88.5 3 23.0 -65.7 250 42 421.7 421.7 307.9 421.7 0.00 64 79 17746 -63.9 -87.9 2 24.0 -64.1 247 46 432.5 432.5 309.1 432.5 0.00 65 72 18309 -67.7 -89.7 3 22.0 -67.8 254 49 436.0 436.0 309.5 436.0 0.00 66 71 18393 -67.3 -90.3 2 23.0 -67.5 252 50 438.6 438.6 309.7 438.6 0.00 67 71 18393 -64.3 -89.3 2 25.0 -64.6 252 50 445.0 445.0 310.4 445.0 0.00 68 70 18480 -63.7 -88.7 2 25.0 -64.0 250 50 448.1 448.1 310.7 448.1 0.00 69 68 18657 -62.9 -88.9 2 26.0 -63.2 252 50 453.6 453.6 311.2 453.6 0.00 70 67 18749 -60.1 -88.1 1 28.0 -60.5 253 51 461.6 461.6 311.9 461.6 0.00 71 59 19542 -58.9 -86.9 2 28.0 -59.5 263 20 481.3 481.3 313.5 481.4 0.00 72 56 19867 -60.7 -87.7 2 27.0 -61.2 244 23 484.5 484.5 313.8 484.5 0.00 73 51 20447 -61.1 -88.1 2 27.0 -61.6 251 18 496.7 496.7 314.7 496.7 0.00 74 50 20570 -59.1 -88.1 1 29.0 -59.7 230 15 504.2 504.2 315.2 504.2 0.00 75 49 20697 -58.7 -87.7 1 29.0 -59.4 234 16 508.1 508.1 315.5 508.1 0.00 76 45 21235 -56.3 -86.3 1 30.0 -57.3 262 15 526.4 526.4 316.7 526.5 0.01 77 42 21675 -55.9 -86.9 1 31.0 -57.0 289 13 537.9 537.9 317.4 537.9 0.00 78 31 23586 -61.1 -89.1 1 28.0 -61.9 344 3 572.7 572.7 319.3 572.7 0.00 79 30 23790 -59.7 -88.7 1 29.0 -60.6 350 2 581.9 581.9 319.8 581.9 0.00 80 23 25467 -55.3 -87.3 1 32.0 -57.2 52 12 640.8 640.8 322.3 640.8 0.01 81 22 25750 -56.1 -87.1 1 31.0 -57.9 70 15 646.6 646.6 322.6 646.6 0.01 82 20 26360 -53.3 -86.3 1 33.0 -55.9 60 9 673.0 673.0 323.5 673.1 0.01 83 18 27040 -52.5 -85.5 1 33.0 -55.5 93 9 696.1 696.1 324.3 696.2 0.01 84 17 27410 -53.1 -86.1 1 33.0 -56.1 114 8 705.7 705.7 324.6 705.8 0.01 85 14 28667 -51.3 -85.3 1 34.0 -55.3 358 0 752.1 752.1 326.0 752.2 0.02 86 13 29152 -48.9 -84.9 1 36.0 -54.0 328 2 776.5 776.5 326.7 776.7 0.02 87 12 29678 -48.9 -84.9 1 36.0 -54.2 297 3 794.5 794.5 327.1 794.7 0.02 88 12 29678 -46.5 -83.5 1 37.0 -52.8 297 3 803.0 803.0 327.3 803.3 0.03 89 11 30255 -47.3 -84.3 1 37.0 -53.6 263 5 820.3 820.3 327.7 820.6 0.03 90 10 30890 -44.3 -83.3 1 39.0 -52.4 225 7 854.2 854.2 328.5 854.5 0.04 91 8.9 31676 -42.1 -83.1 0 41.0 -51.8 233 11 891.6 891.6 329.2 892.1 0.04 92 8.6 31908 -43.1 -83.1 0 40.0 -52.4 236 12 896.5 896.5 329.4 897.0 0.05 93 8.0 32397 -41.9 -82.9 0 41.0 -52.2 241 15 920.0 920.1 329.8 920.6 0.05 94 7.1 33212 -38.5 -80.5 0 42.0 -51.4 249 19 966.0 966.0 330.7 966.9 0.09 95 7.0 33310 -38.7 -80.7 0 42.0 -51.5 250 19 969.1 969.1 330.7 970.0 0.08 96 6.8 33509 -38.5 -80.5 0 42.0 -51.6 978.0 978.0 330.8 979.0 0.09 TRP 204 11737 -59.7 -68.7 30 9.0 -59.8 255 101 336.3 336.3 293.4 336.4 0.02 WND 242 10658 -54.0 -64.7 26 10.7 -54.2 255 108 328.8 328.9 291.4 329.0 0.03 Sounding variables and indices 1000-500 mb thick: 5574.00 m Freezing level: 681.46 mb = 3206.89 m = 10521.17 ft Wetbulb zero: 715.11 mb = 2813.13 m = 9229.33 ft Precipitable water: 0.86 inches Sfc-500 mean rel hum: 63.96 % Est. max temperature: 22.05 C = 71.69 F Sfc-Lift cond lev (LCL): 935.53 mb = 596.78 m = 1957.91 ft T: 15.71 C 700-500 lapse rate: 7.54 C/km ThetaE index: 6.65 C Layer 946.0- 866.0 mb Conv cond level (CCL): 682.21 mb = 3191.06 m = 10469.21 ft Mean mixing ratio: 5.68 g/kg Conv temperature: 31.11 C = 87.99 F Cap Strength: 6.25 C Lifted Index: 4.05 C Risk: None Lifted Index @300 mb: 10.40 C Lifted Index @700 mb: 5.65 C Showalter Index: 5.69 C Risk: None Total Totals Index: 43.80 C Risk: None Vertical Totals Index: 26.90 C Cross Totals Index: 16.90 C K Index: 18.90 Risk: < 20 % chance of thunderstorms Sweat Index: 130.00 Risk: None Energy Index: 1.78 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.92 J/kg Max Up Vert Vel: 3.72 m/s Conv Inhibition (B-): 53059.89 J/kg Cap Strength: 6.04 C Lift Cond Lev (LCL): 795.11 mb = 1947.78 m = 6390.26 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 285 at 39 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 ---------------------------------------------------------- 0 993 98 230 5 3.8 3.2 | 111 36 -33.7 13.1 1 969 305 255 15 14.5 3.9 | 121 27 -23.1 13.8 2 934 610 265 19 18.9 1.7 | 122 22 -18.6 11.6 3 925 691 260 20 19.7 3.5 | 127 22 -17.9 13.4 4 901 914 260 22 21.7 3.8 | 131 21 -15.9 13.7 5 868 1219 260 23 22.7 4.0 | 133 20 -14.9 13.9 6 850 1399 260 26 25.6 4.5 | 140 19 -12.0 14.4 7 837 1524 260 26 25.6 4.5 | 140 19 -12.0 14.4 8 806 1829 270 31 31.0 -0.0 | 146 12 -6.6 9.9 9 777 2134 270 45 45.0 -0.0 | 217 12 7.4 9.9 10 749 2438 255 54 52.2 14.0 | 211 28 14.6 23.9 11 721 2743 255 53 51.2 13.7 | 210 27 13.6 23.6 12 700 2986 255 57 55.1 14.8 | 215 30 17.5 24.7 13 642 3658 255 57 55.1 14.8 | 215 30 17.5 24.7 14 594 4267 250 68 63.9 23.3 | 218 42 26.3 33.2 15 549 4877 250 73 68.6 25.0 | 222 47 31.0 34.9 16 507 5486 255 79 76.3 20.4 | 232 49 38.8 30.3 17 500 5600 255 78 75.3 20.2 | 231 48 37.8 30.1 18 467 6096 250 77 72.4 26.3 | 224 50 34.8 36.2 19 430 6706 250 95 89.3 32.5 | 231 67 51.7 42.4 20 400 7240 240 90 77.9 45.0 | 216 68 40.4 54.9 21 379 7620 240 90 77.9 45.0 | 216 68 40.4 54.9 22 305 9144 245 99 89.7 41.8 | 225 73 52.2 51.7 23 300 9250 245 100 90.6 42.3 | 225 74 53.1 52.2 24 250 10450 250 106 99.6 36.3 | 233 77 62.1 46.2 25 242 10658 255 108 104.3 28.0 | 240 77 66.8 37.9 26 242 10668 255 108 104.3 28.0 | 240 77 66.8 37.9 27 204 11737 255 101 97.6 26.1 | 239 70 60.0 36.0 28 200 11860 255 101 97.6 26.1 | 239 70 60.0 36.0 29 181 12497 250 95 89.3 32.5 | 231 67 51.7 42.4 30 157 13411 265 97 96.6 8.5 | 253 62 59.1 18.4 31 150 13700 255 82 79.2 21.2 | 233 52 41.6 31.1 32 150 13716 255 81 78.2 21.0 | 233 51 40.7 30.9 33 118 15240 260 80 78.8 13.9 | 240 48 41.2 23.8 34 112 15545 260 81 79.8 14.1 | 240 49 42.2 24.0 35 102 16154 270 64 64.0 -0.0 | 249 28 26.4 9.9 36 100 16300 255 56 54.1 14.5 | 214 29 16.5 24.4 37 97 16459 255 56 54.1 14.5 | 214 29 16.5 24.4 38 84 17374 250 42 39.5 14.4 | 185 24 1.9 24.3 39 76 17983 245 49 44.4 20.7 | 193 31 6.9 30.6 40 72 18288 255 49 47.3 12.7 | 203 25 9.8 22.6 41 70 18480 250 50 47.0 17.1 | 199 29 9.4 27.0 42 65 18898 255 51 49.3 13.2 | 207 26 11.7 23.1 43 62 19202 275 34 33.9 -3.0 | 152 8 -3.7 6.9 44 59 19507 265 20 19.9 1.7 | 123 21 -17.6 11.6 45 56 19812 245 23 20.8 9.7 | 140 26 -16.7 19.6 46 54 20117 240 23 19.9 11.5 | 141 28 -17.6 21.4 47 51 20422 255 19 18.4 4.9 | 128 24 -19.2 14.8 48 50 20570 230 15 11.5 9.6 | 127 33 -26.1 19.5 49 49 20726 235 16 13.1 9.2 | 128 31 -24.5 19.1 50 46 21031 225 14 9.9 9.9 | 126 34 -27.7 19.8 51 44 21336 280 15 14.8 -2.6 | 108 24 -22.8 7.3 52 30 23790 350 2 0.3 -2.0 | 102 38 -37.2 7.9 53 29 24079 255 1 1.0 0.3 | 106 38 -36.6 10.2 54 27 24384 65 9 -8.2 -3.8 | 98 46 -45.7 6.1 55 23 25603 50 12 -9.2 -7.7 | 93 47 -46.7 2.2 56 21 25908 90 18 -18.0 0.0 | 100 56 -55.6 9.9 57 20 26213 105 10 -9.7 2.6 | 105 49 -47.2 12.5 58 20 26360 60 9 -7.8 -4.5 | 97 46 -45.4 5.4 59 20 26518 40 4 -2.6 -3.1 | 100 41 -40.1 6.8 60 19 26822 80 10 -9.8 -1.7 | 100 48 -47.4 8.2 61 17 27432 115 8 -7.3 3.4 | 107 47 -44.8 13.3 62 14 28651 0 0 -0.0 -0.0 | 105 39 -37.6 9.9 63 10 30890 225 7 4.9 4.9 | 114 36 -32.6 14.9 64 7 33310 250 19 17.9 6.5 | 130 26 -19.7 16.4 Wind Parameters Mean winds (0-6000m): 254.8 at 51.8 knts Storm direction: 284.8 at 38.8 knts Shear (0-3000m) pos: 6.2 neg: 3.9 tot: 10.1 10-3/s Storm rel Dir Shear (0-3000m): 104.1 deg Storm rel helicity (0-3000m) pos: 150.6 neg: -16.2 tot: 134.4 m^2/s^2 ave: 44.8 10^-3 m/s^2 rel: 0.43 Storm rel vorticity (0-3000m) horiz: 11.0 stream: 4.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.04 Bulk Shear: 188.46 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 ------------------------------------------------------------------------------- 500 257 14 119 27| 15.4 0.0 15.4| 49.0 0.0 49.0 98.1 0.37| 16.1 6.0 1000 259 18 123 24| 7.7 2.1 9.8| 71.6 0.0 71.6 71.6 0.48| 10.4 5.0 1500 260 20 127 22| 6.8 1.4 8.2| 88.5 0.0 88.5 59.0 0.52| 8.7 4.5 2000 263 23 132 19| 9.4 1.1 10.4|125.9 0.0 125.9 62.9 0.61| 11.0 6.7 2500 262 29 147 17| 7.5 4.1 11.6|131.0 -14.5 116.5 46.6 0.42| 12.4 5.2 3000 260 33 163 16| 6.2 3.9 10.1|150.6 -16.2 134.4 44.8 0.43| 11.0 4.7 4000 258 40 185 18| 4.7 4.1 8.7|164.9 -16.2 148.7 37.2 0.40| 9.4 3.8 5000 255 46 198 23| 4.3 3.8 8.1|235.6 -16.2 219.4 43.9 0.41| 8.7 3.6 6000 255 52 208 27| 3.9 3.4 7.4|305.3-105.9 199.4 33.2 0.34| 8.4 2.9 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20250415.12.gif