UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042900.upa.cvt Date: 0000Z 29 APR 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 29 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 ------------------------------------------------------------------------------- SFC 1014 98 22.0 2.0 27 20.0 11.5 175 9 294.0 294.8 284.1 306.8 4.35 1 1000 207 21.4 0.4 25 21.0 10.7 195 9 294.5 295.3 283.8 306.2 3.93 2 925 874 14.8 -1.2 33 16.0 7.1 200 14 294.4 295.1 283.7 305.6 3.78 3 850 1580 8.0 -2.0 49 10.0 3.4 190 12 294.5 295.2 283.8 306.0 3.88 4 842 1658 7.2 -2.8 49 10.0 2.7 209 12 294.5 295.1 283.5 305.4 3.69 5 835 1726 7.8 -12.2 23 20.0 0.3 225 12 295.8 296.1 281.9 301.3 1.79 6 832 1756 8.8 -23.2 8 32.0 -0.8 232 12 297.2 297.3 281.1 299.5 0.71 7 829 1786 9.2 -26.8 6 36.0 -0.9 239 12 297.9 298.0 281.1 299.6 0.51 8 819 1886 9.4 -34.6 3 44.0 -1.3 253 12 299.2 299.2 281.3 300.0 0.25 9 806 2019 9.4 259 12 300.5 10 737 2753 4.4 -33.6 4 38.0 -4.6 276 16 302.9 302.9 283.0 303.9 0.30 11 700 3171 2.6 -41.4 2 44.0 -6.2 305 13 305.4 305.4 283.7 305.9 0.15 12 684 3357 1.6 -42.4 2 44.0 -7.0 295 18 306.3 306.3 284.1 306.8 0.13 13 678 3428 1.4 -33.6 5 35.0 -6.7 298 19 306.8 306.9 284.5 308.0 0.33 14 668 3547 0.8 -16.2 27 17.0 -5.1 304 21 307.5 307.8 286.3 312.7 1.61 15 651 3753 -1.3 -15.3 34 14.0 -6.2 310 23 307.4 307.7 286.4 313.1 1.79 16 647 3802 -1.5 -12.5 43 11.0 -5.6 310 23 307.7 308.1 287.1 314.9 2.26 17 612 4241 -4.9 -12.9 53 8.0 -7.8 310 22 308.7 309.1 287.5 316.1 2.31 18 606 4318 -5.3 -20.3 30 15.0 -9.8 310 22 309.1 309.3 286.5 313.2 1.26 19 591 4514 -6.7 -19.7 35 13.0 -10.6 312 24 309.7 310.0 286.8 314.2 1.36 20 582 4633 -7.3 -26.3 20 19.0 -12.1 313 25 310.4 310.5 286.4 313.0 0.77 21 573 4754 -7.7 -26.7 20 19.0 -12.4 314 26 311.3 311.4 286.7 313.8 0.75 22 547 5113 -10.3 -32.3 15 22.0 -14.9 317 30 312.4 312.4 286.7 314.0 0.46 23 542 5184 -10.3 -35.3 11 25.0 -15.1 318 31 313.2 313.2 286.9 314.4 0.35 24 535 5284 -10.9 -25.9 28 15.0 -14.6 319 32 313.6 313.8 287.6 316.6 0.87 25 533 5312 -10.7 -31.7 16 21.0 -15.2 320 33 314.2 314.3 287.4 316.0 0.51 26 530 5356 -10.9 -32.9 14 22.0 -15.4 320 33 314.5 314.6 287.5 316.1 0.45 27 527 5399 -11.1 -32.1 16 21.0 -15.5 321 34 314.7 314.8 287.6 316.5 0.49 28 507 5695 -13.5 -30.5 22 17.0 -17.1 324 38 315.3 315.4 287.9 317.4 0.60 29 500 5800 -14.3 -37.3 12 23.0 -18.3 325 36 315.6 315.7 287.6 316.7 0.31 30 496 5861 -14.7 -40.7 9 26.0 -18.7 325 34 315.8 315.9 287.6 316.7 0.22 31 481 6094 -16.1 -43.1 8 27.0 -20.0 325 28 316.9 316.9 287.9 317.6 0.18 32 422 7069 -23.3 -47.3 9 24.0 -25.9 329 25 319.8 319.8 288.8 320.3 0.13 33 403 7406 -26.1 -43.1 19 17.0 -28.0 331 33 320.4 320.4 289.1 321.2 0.21 34 400 7460 -26.5 -45.5 15 19.0 -28.5 335 33 320.5 320.6 289.1 321.2 0.16 35 391 7623 -27.9 -41.9 25 14.0 -29.5 340 32 320.8 320.9 289.3 321.7 0.25 36 378 7864 -29.3 -46.3 18 17.0 -30.9 332 31 322.1 322.1 289.6 322.7 0.16 37 356 8287 -33.1 -46.1 26 13.0 -34.2 340 27 322.5 322.6 289.8 323.2 0.17 38 318 9066 -39.7 -53.7 21 14.0 -40.4 345 34 324.0 324.0 290.0 324.3 0.08 39 300 9460 -42.7 -56.7 20 14.0 -43.3 350 40 325.2 325.2 290.4 325.4 0.06 40 283 9852 -45.9 -58.9 22 13.0 -46.3 348 43 326.1 326.1 290.6 326.2 0.05 41 265 10288 -48.5 -63.5 16 15.0 -48.8 345 47 328.4 328.4 291.3 328.6 0.03 42 255 10541 -50.1 -63.1 20 13.0 -50.4 354 48 329.7 329.7 291.7 329.8 0.03 43 250 10670 -51.1 -63.1 23 12.0 -51.4 360 48 330.1 330.1 291.7 330.2 0.03 44 223 11402 -57.9 -64.9 40 7.0 -58.0 14 52 330.6 330.6 291.9 330.7 0.03 45 212 11719 -60.3 -68.3 34 8.0 -60.4 21 50 331.7 331.7 292.2 331.8 0.02 46 201 12049 -62.1 -71.1 29 9.0 -62.2 12 46 333.9 333.9 292.8 334.0 0.01 47 200 12080 -61.9 -70.9 29 9.0 -62.0 10 46 334.7 334.7 293.0 334.8 0.01 48 198 12142 -62.1 -72.1 25 10.0 -62.2 8 45 335.4 335.4 293.2 335.4 0.01 49 189 12430 -62.3 -71.3 29 9.0 -62.4 357 41 339.6 339.6 294.2 339.6 0.01 50 182 12663 -63.3 -72.3 28 9.0 -63.4 344 45 341.6 341.6 294.7 341.7 0.01 51 171 13045 -66.3 -72.3 43 6.0 -66.4 340 59 342.8 342.8 295.0 342.8 0.01 52 170 13080 -65.9 -72.5 39 6.7 -65.9 340 61 344.1 344.1 295.3 344.1 0.01 53 165 13263 -63.7 -73.7 24 10.0 -63.8 340 61 350.7 350.7 296.8 350.7 0.01 54 162 13376 -63.3 -81.3 7 18.0 -63.4 340 61 353.2 353.2 297.3 353.2 0.00 55 158 13529 -64.1 -82.1 7 18.0 -64.2 342 54 354.4 354.4 297.5 354.4 0.00 56 154 13687 -62.1 -85.1 3 23.0 -62.3 345 44 360.4 360.4 298.8 360.4 0.00 57 150 13850 -63.1 -85.1 4 22.0 -63.2 320 39 361.4 361.4 299.0 361.4 0.00 58 134 14544 -61.7 -86.7 2 25.0 -61.9 309 42 375.7 375.7 301.5 375.7 0.00 59 100 16360 -60.1 -87.1 2 27.0 -60.4 315 40 411.6 411.6 306.7 411.6 0.00 60 90 17013 -62.3 -87.3 2 25.0 -62.6 327 36 419.8 419.8 307.7 419.8 0.00 61 82 17591 -59.7 -87.7 1 28.0 -60.1 317 36 436.5 436.5 309.5 436.5 0.00 62 71 18483 -63.5 -88.5 2 25.0 -63.8 315 32 446.7 446.7 310.6 446.7 0.00 63 70 18570 -63.5 -88.5 2 25.0 -63.8 320 34 448.5 448.5 310.7 448.5 0.00 64 64 19124 -61.5 -88.5 2 27.0 -61.9 322 32 464.6 464.6 312.2 464.6 0.00 65 56 19949 -63.7 -88.7 2 25.0 -64.0 341 24 477.6 477.6 313.2 477.7 0.00 66 50 20650 -60.9 -88.9 1 28.0 -61.4 325 23 500.0 500.0 314.9 500.0 0.00 67 45 21308 -58.5 -88.5 1 30.0 -59.3 349 25 521.1 521.1 316.4 521.1 0.00 68 44 21449 -58.7 -87.7 1 29.0 -59.5 356 19 524.0 524.0 316.5 524.0 0.00 69 43 21594 -56.9 -87.9 1 31.0 -57.9 3 13 531.8 531.8 317.1 531.9 0.00 70 40 22049 -58.7 -87.7 1 29.0 -59.5 15 12 538.4 538.4 317.4 538.5 0.00 71 38 22372 -56.9 -87.9 1 31.0 -58.0 36 10 551.0 551.0 318.2 551.0 0.00 72 36 22714 -57.9 -87.9 1 30.0 -58.9 14 5 557.0 557.0 318.5 557.0 0.00 73 35 22892 -56.5 -87.5 1 31.0 -57.7 2 0 565.1 565.1 318.9 565.2 0.01 74 30 23870 -56.1 -87.1 1 31.0 -57.5 45 3 591.7 591.7 320.2 591.7 0.01 75 30 23870 -56.3 -87.3 1 31.0 -57.7 45 3 591.2 591.2 320.2 591.2 0.01 76 22 25867 -49.9 -84.9 1 35.0 -53.2 348 8 665.1 665.1 323.3 665.2 0.01 77 20 26490 -49.9 -84.9 1 35.0 -53.4 335 16 683.4 683.4 323.9 683.5 0.01 78 16 27956 -48.1 -84.1 1 36.0 -52.8 2 12 734.3 734.4 325.5 734.5 0.02 79 14 28836 -48.7 -84.7 1 36.0 -53.6 52 6 760.9 760.9 326.3 761.1 0.02 80 13 29326 -45.7 -83.7 1 38.0 -52.1 6 9 787.6 787.6 327.0 787.8 0.03 81 12 29861 -45.1 -83.1 1 38.0 -52.0 58 6 807.9 808.0 327.4 808.3 0.03 82 12 29861 -44.9 -82.9 1 38.0 -52.0 58 6 808.7 808.7 327.4 809.0 0.03 83 12 29861 -44.7 -82.7 1 38.0 -51.8 58 6 809.4 809.4 327.5 809.7 0.04 84 11 30442 -45.7 -83.7 1 38.0 -52.7 154 5 826.1 826.1 327.8 826.4 0.03 85 10 31080 -43.5 -82.5 1 39.0 -52.0 210 12 857.2 857.2 328.5 857.6 0.04 86 10 31080 -43.7 -82.7 1 39.0 -52.1 210 12 856.4 856.4 328.5 856.8 0.04 87 9.8 31216 -43.7 -82.7 1 39.0 -52.1 213 13 861.4 861.4 328.7 861.8 0.04 88 9.3 31570 -40.7 -81.7 0 41.0 -51.0 222 14 885.8 885.8 329.1 886.4 0.05 89 7.9 32692 -36.7 -79.7 0 43.0 -50.1 250 19 944.1 944.2 330.2 945.1 0.09 90 7.7 32870 -36.5 -79.5 0 43.0 -50.1 254 19 951.9 951.9 330.4 952.9 0.09 91 7.5 33052 -37.7 -79.7 0 42.0 -50.7 258 20 954.2 954.2 330.4 955.2 0.09 92 7.0 33530 -35.5 -78.5 0 43.0 -50.3 270 22 982.3 982.4 330.9 983.7 0.12 93 6.2 34380 -32.7 -76.7 0 44.0 -50.0 1029.0 1029.1 331.6 1031.2 0.18 94 6.0 34610 -34.1 -77.1 0 43.0 -50.6 1032.6 1032.7 331.7 1034.8 0.18 TRP 171 13045 -66.3 -72.3 43 6.0 -66.4 340 59 342.8 342.8 295.0 342.8 0.01 WND 170 13080 -65.9 -72.5 39 6.7 -65.9 340 61 344.1 344.1 295.3 344.1 0.01 Sounding variables and indices 1000-500 mb thick: 5593.00 m Freezing level: 661.52 mb = 3625.43 m = 11894.32 ft Wetbulb zero: 834.16 mb = 1734.80 m = 5691.52 ft Precipitable water: 0.39 inches Sfc-500 mean rel hum: 25.84 % Est. max temperature: 22.55 C = 72.58 F Sfc-Lift cond lev (LCL): 752.70 mb = 2580.43 m = 8465.86 ft T: 5.58 C 700-500 lapse rate: 6.43 C/km ThetaE index: 6.52 C Layer 842.0- 829.0 mb Conv cond level (CCL): 588.47 mb = 4547.35 m = 14918.96 ft Mean mixing ratio: 3.89 g/kg Conv temperature: 37.97 C = 100.34 F Cap Strength: 10.71 C Lifted Index: 10.64 C Risk: None Lifted Index @300 mb: 13.79 C Lifted Index @700 mb: 8.79 C Showalter Index: 10.58 C Risk: None Total Totals Index: 34.60 C Risk: None Vertical Totals Index: 22.30 C Cross Totals Index: 12.30 C K Index: -23.70 Risk: None Sweat Index: 60.00 Risk: None Energy Index: 2.35 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.71 J/kg Max Up Vert Vel: 1.19 m/s Conv Inhibition (B-): 66312.83 J/kg Cap Strength: 10.65 C Lift Cond Lev (LCL): 729.88 mb = 2832.18 m = 9291.82 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 327 at 15 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 1014 98 175 9 -0.8 9.0 | 158 23 -8.8 21.4 1 1000 207 195 9 2.3 8.7 | 165 22 -5.7 21.1 2 989 305 200 10 3.4 9.4 | 168 22 -4.6 21.8 3 954 610 195 16 4.1 15.5 | 172 28 -3.9 27.9 4 925 874 200 14 4.8 13.2 | 173 26 -3.2 25.6 5 921 914 200 13 4.4 12.2 | 172 25 -3.6 24.6 6 888 1219 205 13 5.5 11.8 | 174 24 -2.5 24.2 7 856 1524 195 13 3.4 12.6 | 169 25 -4.6 25.0 8 850 1580 190 12 2.1 11.8 | 166 25 -5.9 24.2 9 825 1829 250 12 11.3 4.1 | 191 17 3.3 16.5 10 794 2134 265 12 12.0 1.0 | 196 14 3.9 13.4 11 765 2438 280 10 9.8 -1.7 | 190 11 1.8 10.7 12 738 2743 275 16 15.9 -1.4 | 216 14 7.9 11.0 13 711 3048 310 13 10.0 -8.4 | 206 4 1.9 4.0 14 700 3171 305 13 10.6 -7.5 | 208 6 2.6 4.9 15 684 3353 295 18 16.3 -7.6 | 240 10 8.3 4.8 16 658 3658 310 23 17.6 -14.8 | 284 10 9.6 -2.4 17 608 4267 310 22 16.9 -14.1 | 281 9 8.8 -1.7 18 563 4877 315 27 19.1 -19.1 | 301 13 11.1 -6.7 19 501 5791 325 39 22.4 -31.9 | 324 24 14.4 -19.5 20 500 5800 325 36 20.6 -29.5 | 324 21 12.6 -17.1 21 480 6096 325 28 16.1 -22.9 | 323 13 8.0 -10.5 22 425 7010 330 24 12.0 -20.8 | 335 9 4.0 -8.4 23 408 7315 325 32 18.4 -26.2 | 323 17 10.3 -13.8 24 400 7460 335 33 13.9 -29.9 | 341 18 5.9 -17.5 25 391 7620 340 32 10.9 -30.1 | 351 18 2.9 -17.7 26 374 7925 330 31 15.5 -26.8 | 333 16 7.5 -14.4 27 358 8230 340 27 9.2 -25.4 | 355 13 1.2 -13.0 28 314 9144 345 35 9.1 -33.8 | 357 21 1.0 -21.4 29 300 9449 350 39 6.8 -38.4 | 3 26 -1.2 -26.0 30 300 9460 350 40 6.9 -39.4 | 2 27 -1.1 -27.0 31 262 10363 345 48 12.4 -46.4 | 353 34 4.4 -34.0 32 250 10670 360 48 -0.0 -48.0 | 13 36 -8.0 -35.6 33 238 10973 5 54 -4.7 -53.8 | 17 43 -12.7 -41.4 34 206 11887 25 49 -20.7 -44.4 | 42 43 -28.7 -32.0 35 200 12080 10 46 -8.0 -45.3 | 26 37 -16.0 -32.9 36 187 12497 355 40 3.5 -39.8 | 9 28 -4.5 -27.4 37 178 12802 335 50 21.1 -45.3 | 338 35 13.1 -32.9 38 171 13045 340 59 20.2 -55.4 | 344 45 12.2 -43.0 39 170 13080 340 61 20.9 -57.3 | 344 47 12.9 -44.9 40 161 13411 340 61 20.9 -57.3 | 344 47 12.9 -44.9 41 153 13716 345 42 10.9 -40.6 | 354 28 2.9 -28.2 42 150 13850 320 39 25.1 -29.9 | 316 24 17.1 -17.5 43 139 14326 320 38 24.4 -29.1 | 316 23 16.4 -16.7 44 132 14630 305 44 36.0 -25.2 | 295 31 28.0 -12.8 45 126 14935 315 56 39.6 -39.6 | 311 42 31.6 -27.2 46 120 15240 320 51 32.8 -39.1 | 317 36 24.8 -26.7 47 103 16154 320 31 19.9 -23.7 | 314 16 11.9 -11.3 48 100 16360 315 40 28.3 -28.3 | 308 26 20.3 -15.9 49 94 16764 315 40 28.3 -28.3 | 308 26 20.3 -15.9 50 89 17069 330 35 17.5 -30.3 | 332 20 9.5 -17.9 51 85 17374 310 40 30.6 -25.7 | 300 26 22.6 -13.3 52 81 17678 320 34 21.9 -26.0 | 315 19 13.8 -13.6 53 73 18288 305 27 22.1 -15.5 | 282 14 14.1 -3.1 54 70 18570 320 34 21.9 -26.0 | 315 19 13.8 -13.6 55 66 18898 320 34 21.9 -26.0 | 315 19 13.8 -13.6 56 57 19812 330 25 12.5 -21.7 | 334 10 4.5 -9.2 57 55 20117 355 22 1.9 -21.9 | 33 11 -6.1 -9.5 58 52 20422 325 18 10.3 -14.7 | 315 3 2.3 -2.3 59 50 20650 325 23 13.2 -18.8 | 321 8 5.2 -6.4 60 49 20726 315 16 11.3 -11.3 | 252 3 3.3 1.1 61 45 21336 350 25 4.3 -24.6 | 17 13 -3.7 -12.2 62 43 21641 5 11 -1.0 -11.0 | 99 9 -9.0 1.4 63 41 21946 360 13 -0.0 -13.0 | 86 8 -8.0 -0.6 64 39 22250 40 10 -6.4 -7.7 | 108 15 -14.4 4.7 65 37 22555 30 10 -5.0 -8.7 | 106 14 -13.0 3.7 66 35 22860 0 0 -0.0 -0.0 | 147 15 -8.0 12.4 67 30 23870 45 3 -2.1 -2.1 | 135 14 -10.1 10.3 68 28 24384 335 5 2.1 -4.5 | 143 10 -5.9 7.9 69 26 24689 355 11 1.0 -11.0 | 102 7 -7.1 1.4 70 25 24994 5 10 -0.9 -10.0 | 105 9 -8.9 2.4 71 24 25298 0 0 -0.0 -0.0 | 147 15 -8.0 12.4 72 20 26490 335 16 6.8 -14.5 | 31 2 -1.3 -2.1 73 20 26518 300 10 8.7 -5.0 | 185 7 0.6 7.4 74 18 27127 350 14 2.4 -13.8 | 76 6 -5.6 -1.4 75 17 27432 340 18 6.2 -16.9 | 22 5 -1.9 -4.5 76 16 28042 5 11 -1.0 -11.0 | 99 9 -9.0 1.4 77 15 28346 100 3 -3.0 0.5 | 140 17 -11.0 12.9 78 13 29566 345 10 2.6 -9.7 | 117 6 -5.4 2.7 79 11 30175 130 2 -1.5 1.3 | 145 17 -9.5 13.7 80 10 31080 210 12 6.0 10.4 | 175 23 -2.0 22.8 81 7 33530 270 22 22.0 -0.0 | 228 19 14.0 12.4 Wind Parameters Mean winds (0-6000m): 297.1 at 19.7 knts Storm direction: 327.1 at 14.8 knts Shear (0-3000m) pos: 3.6 neg: 0.4 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 49.3 deg Storm rel helicity (0-3000m) pos: 112.1 neg: -23.0 tot: 89.1 m^2/s^2 ave: 29.7 10^-3 m/s^2 rel: 0.35 Storm rel vorticity (0-3000m) horiz: 8.3 stream: 3.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.01 Bulk Shear: 80.72 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 ------------------------------------------------------------------------------- 500 195 11 168 24| 8.2 0.0 8.2| 35.2 0.0 35.2 70.4 0.57| 10.5 5.9 1000 197 13 170 25| 3.4 0.0 3.4| 40.2 -1.5 38.7 38.7 0.46| 7.1 3.2 1500 198 13 171 25| 2.3 0.7 3.0| 42.3 -17.9 24.4 16.3 0.24| 5.9 1.4 2000 207 13 175 24| 4.2 0.5 4.8| 94.8 -17.9 76.9 38.5 0.44| 8.1 3.6 2500 219 12 179 22| 3.9 0.4 4.3|103.1 -21.1 82.0 32.8 0.41| 7.8 3.2 3000 232 13 185 20| 3.6 0.4 4.0|112.1 -23.0 89.1 29.7 0.35| 8.3 3.0 4000 262 15 204 16| 2.8 1.0 3.8|137.0 -23.8 113.2 28.3 0.45| 8.0 3.6 5000 282 17 223 12| 3.1 0.8 3.9|154.2 -24.0 130.2 26.0 0.47| 7.3 3.4 6000 297 20 250 10| 2.5 0.7 3.1|181.2 -25.2 155.9 26.0 0.43| 7.7 3.3 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20250429.00.gif