UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042400.upa.cvt Date: 0000Z 24 APR 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 24 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 1012 98 24.2 2.2 24 22.0 12.4 0 0 296.3 297.1 285.1 309.4 4.43 1 1007 137 24.2 0.2 21 24.0 11.8 333 0 296.8 297.5 284.7 308.2 3.85 2 1000 191 23.4 -0.6 20 24.0 11.2 295 1 296.5 297.2 284.4 307.5 3.66 3 925 862 17.0 -1.0 29 18.0 8.1 150 2 296.7 297.4 284.6 308.1 3.84 4 871 1370 12.2 -1.8 38 14.0 5.5 106 3 296.8 297.5 284.7 308.3 3.84 5 850 1574 10.0 -2.0 43 12.0 4.3 65 1 296.6 297.3 284.7 308.2 3.88 6 838 1692 9.0 -3.0 43 12.0 3.4 15 2 296.8 297.4 284.4 307.7 3.65 7 816 1912 8.0 0.0 57 8.0 4.0 316 5 298.0 298.8 286.0 311.9 4.69 8 810 1973 7.8 -2.2 49 10.0 3.1 317 6 298.4 299.1 285.5 310.4 4.01 9 792 2158 6.2 0.2 65 6.0 3.2 319 9 298.6 299.5 286.5 313.2 4.90 10 779 2293 5.4 -1.6 61 7.0 2.1 310 10 299.2 300.0 286.1 312.3 4.37 11 775 2335 5.6 -5.4 45 11.0 0.7 307 10 299.8 300.4 285.2 309.9 3.30 12 772 2367 5.4 -2.6 56 8.0 1.7 305 10 299.9 300.7 286.1 312.3 4.09 13 767 2420 4.8 -2.2 60 7.0 1.5 302 11 299.9 300.6 286.2 312.6 4.24 14 756 2538 4.4 -5.6 48 10.0 0.0 309 10 300.7 301.3 285.6 310.8 3.33 15 754 2559 4.2 -7.8 41 12.0 -0.8 311 10 300.7 301.2 285.1 309.3 2.82 16 753 2570 4.4 -9.6 35 14.0 -1.2 312 10 301.0 301.5 284.8 308.6 2.45 17 747 2635 4.2 -14.8 24 19.0 -2.6 319 10 301.5 301.8 284.0 306.6 1.62 18 730 2822 2.8 -13.2 30 16.0 -3.1 328 9 301.9 302.3 284.5 307.9 1.89 19 725 2878 2.2 -8.8 44 11.0 -2.3 327 9 301.9 302.4 285.4 310.3 2.71 20 707 3080 0.6 -9.4 47 10.0 -3.4 322 8 302.3 302.8 285.5 310.5 2.65 21 700 3160 0.0 -14.0 34 14.0 -5.0 320 8 302.5 302.8 284.7 308.3 1.85 22 698 3183 0.0 -14.0 34 14.0 -5.0 319 8 302.7 303.1 284.8 308.6 1.85 23 695 3217 0.0 -20.0 21 20.0 -6.1 317 9 303.1 303.3 284.1 306.7 1.12 24 686 3321 -1.1 -10.1 50 9.0 -4.6 312 10 303.0 303.5 285.7 311.1 2.58 25 681 3379 -1.5 -10.5 50 9.0 -5.0 309 10 303.2 303.7 285.7 311.1 2.52 26 674 3461 -1.7 -14.7 36 13.0 -6.2 307 9 303.9 304.2 285.2 309.6 1.81 27 658 3651 -3.5 -14.5 42 11.0 -7.2 301 7 303.9 304.3 285.3 309.9 1.89 28 651 3736 -3.7 -19.7 28 16.0 -8.5 296 7 304.6 304.9 284.8 308.6 1.23 29 649 3760 -3.9 -17.9 33 14.0 -8.3 295 7 304.7 305.0 285.1 309.3 1.44 30 646 3796 -3.9 -25.9 16 22.0 -9.5 293 7 305.1 305.2 284.4 307.5 0.72 31 623 4081 -6.1 -18.1 38 12.0 -9.8 277 6 305.8 306.0 285.5 310.5 1.47 32 611 4232 -7.1 -20.1 35 13.0 -10.9 268 6 306.3 306.5 285.5 310.4 1.27 33 610 4245 -7.1 -21.1 32 14.0 -11.1 267 6 306.4 306.7 285.4 310.3 1.16 34 608 4271 -7.1 -25.1 22 18.0 -11.6 266 6 306.7 306.9 285.1 309.5 0.82 35 605 4309 -7.1 -23.1 27 16.0 -11.4 265 6 307.2 307.4 285.5 310.4 0.98 36 596 4426 -7.3 -35.3 9 28.0 -12.8 267 6 308.3 308.3 285.1 309.4 0.32 37 577 4677 -8.9 -40.9 6 32.0 -14.2 271 7 309.3 309.3 285.3 309.9 0.19 38 518 5503 -13.9 -41.9 7 28.0 -18.1 271 10 312.9 312.9 286.6 313.6 0.19 39 500 5770 -15.7 -44.7 6 29.0 -19.6 290 13 313.9 313.9 286.9 314.4 0.14 40 495 5846 -16.3 -45.3 6 29.0 -20.1 287 13 314.1 314.1 286.9 314.6 0.14 41 489 5937 -17.1 -44.1 8 27.0 -20.7 281 13 314.2 314.2 287.0 314.8 0.16 42 483 6030 -17.9 -35.9 19 18.0 -20.8 275 12 314.3 314.4 287.3 315.6 0.37 43 473 6186 -18.9 -39.9 14 21.0 -21.9 273 12 315.0 315.0 287.4 315.9 0.25 44 465 6313 -19.7 -37.7 19 18.0 -22.4 277 14 315.5 315.6 287.6 316.7 0.32 45 414 7163 -27.1 -41.1 25 14.0 -28.7 290 28 316.6 316.7 287.9 317.6 0.25 46 400 7410 -28.9 -41.9 27 13.0 -30.3 290 32 317.4 317.5 288.2 318.3 0.24 47 394 7518 -29.7 -42.7 27 13.0 -31.0 290 32 317.8 317.8 288.3 318.6 0.22 48 379 7794 -31.7 -44.7 27 13.0 -32.9 282 33 318.7 318.7 288.5 319.4 0.19 49 371 7944 -32.7 -50.7 15 18.0 -34.0 275 33 319.3 319.3 288.6 319.7 0.10 50 370 7963 -32.7 -51.7 13 19.0 -34.0 276 33 319.5 319.6 288.7 319.9 0.09 51 366 8040 -32.5 -51.5 13 19.0 -33.8 278 35 320.8 320.8 289.1 321.1 0.09 52 304 9321 -42.9 -64.9 7 22.0 -43.6 275 40 323.7 323.7 289.9 323.7 0.02 53 300 9410 -43.7 -64.7 8 21.0 -44.3 275 40 323.8 323.8 289.9 323.9 0.02 54 282 9820 -47.5 -62.5 16 15.0 -47.9 277 43 324.1 324.1 290.0 324.2 0.03 55 274 10009 -49.3 -55.3 49 6.0 -49.5 277 44 324.2 324.2 290.1 324.5 0.08 56 250 10600 -54.7 -57.3 73 2.6 -54.8 280 48 324.7 324.8 290.3 325.0 0.07 57 200 12000 -62.9 -70.9 33 8.0 -63.0 275 45 333.2 333.2 292.6 333.2 0.01 58 179 12680 -66.1 -73.1 37 7.0 -66.1 265 64 338.7 338.7 294.0 338.7 0.01 59 176 12782 -65.9 -74.0 31 8.1 -65.9 270 67 340.7 340.7 294.5 340.7 0.01 60 150 13760 -63.7 -82.7 6 19.0 -63.8 270 42 360.3 360.3 298.8 360.4 0.00 61 100 16280 -61.1 -87.1 2 26.0 -61.4 255 24 409.7 409.7 306.5 409.7 0.00 62 85 17282 -64.7 -88.7 2 24.0 -64.9 264 29 421.9 421.9 307.9 421.9 0.00 63 83 17429 -62.1 -88.1 2 26.0 -62.4 266 30 430.1 430.1 308.9 430.1 0.00 64 78 17815 -59.7 -86.7 2 27.0 -60.1 272 32 442.7 442.7 310.1 442.8 0.00 65 73 18229 -61.1 -87.1 2 26.0 -61.4 271 31 448.3 448.3 310.7 448.3 0.00 66 70 18490 -60.3 -87.3 2 27.0 -60.7 295 21 455.4 455.4 311.4 455.4 0.00 67 62 19247 -58.1 -87.1 1 29.0 -58.7 289 24 476.3 476.3 313.1 476.4 0.00 68 56 19882 -60.9 -87.9 2 27.0 -61.4 309 13 484.0 484.0 313.8 484.0 0.00 69 50 20590 -57.5 -87.5 1 30.0 -58.3 280 13 508.0 508.0 315.5 508.0 0.00 70 49 20718 -56.5 -86.5 1 30.0 -57.4 271 10 513.3 513.3 315.9 513.3 0.00 71 42 21698 -55.7 -85.7 1 30.0 -56.8 255 13 538.4 538.4 317.4 538.4 0.01 72 37 22503 -56.9 -86.9 1 30.0 -58.0 319 9 555.2 555.2 318.4 555.2 0.01 73 31 23631 -54.3 -85.3 1 31.0 -55.9 44 7 591.0 591.0 320.2 591.1 0.01 74 30 23840 -56.1 -86.1 1 30.0 -57.5 60 6 591.7 591.7 320.2 591.8 0.01 75 28 24279 -56.1 -87.1 1 31.0 -57.6 87 8 603.5 603.5 320.7 603.5 0.01 76 24 25269 -51.3 -84.3 1 33.0 -54.0 267 2 644.6 644.6 322.5 644.7 0.01 77 22 25832 -53.1 -85.1 1 32.0 -55.6 321 3 655.5 655.5 322.9 655.6 0.01 78 20 26450 -50.5 -84.5 1 34.0 -53.8 20 5 681.6 681.6 323.8 681.7 0.02 79 17 27515 -47.1 -83.1 1 36.0 -52.0 104 11 724.9 724.9 325.2 725.1 0.02 80 15 28345 -45.5 -81.5 1 36.0 -51.4 206 18 756.7 756.7 326.1 757.0 0.03 81 14 28804 -45.7 -81.7 1 36.0 -51.8 228 13 771.1 771.1 326.5 771.4 0.04 82 11 30419 -42.3 -81.3 1 39.0 -51.0 273 19 838.5 838.5 328.1 838.9 0.05 83 10 31060 -44.3 -82.3 1 38.0 -52.4 320 12 854.2 854.2 328.5 854.6 0.05 84 9.6 31333 -44.9 -81.9 1 37.0 -52.8 861.9 862.0 328.7 862.4 0.05 85 8.6 32078 -39.1 -80.1 1 41.0 -50.6 912.1 912.1 329.7 912.9 0.08 86 7.6 32933 -34.7 -77.7 0 43.0 -49.5 962.7 962.8 330.6 964.1 0.13 87 7.1 33408 -35.7 -78.7 0 43.0 -50.3 977.5 977.6 330.8 978.8 0.12 TRP 179 12680 -66.1 -73.1 37 7.0 -66.1 265 64 338.7 338.7 294.0 338.7 0.01 WND 176 12782 -65.9 -74.0 31 8.1 -65.9 270 67 340.7 340.7 294.5 340.7 0.01 Sounding variables and indices 1000-500 mb thick: 5579.00 m Freezing level: 695.00 mb = 3217.26 m = 10555.17 ft Wetbulb zero: 755.95 mb = 2538.15 m = 8327.16 ft Precipitable water: 0.54 inches Sfc-500 mean rel hum: 29.35 % Est. max temperature: 24.62 C = 76.31 F Sfc-Lift cond lev (LCL): 730.16 mb = 2820.28 m = 9252.76 ft T: 2.81 C 700-500 lapse rate: 6.02 C/km ThetaE index: 6.02 C Layer 756.0- 730.0 mb Conv cond level (CCL): 616.62 mb = 4160.92 m = 13651.14 ft Mean mixing ratio: 3.78 g/kg Conv temperature: 33.94 C = 93.09 F Cap Strength: 7.64 C Lifted Index: 7.95 C Risk: None Lifted Index @300 mb: 11.42 C Lifted Index @700 mb: 5.14 C Showalter Index: 7.78 C Risk: None Total Totals Index: 39.40 C Risk: None Vertical Totals Index: 25.70 C Cross Totals Index: 13.70 C K Index: 9.70 Risk: None Sweat Index: 15.00 Risk: None Energy Index: 1.38 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.36 J/kg Max Up Vert Vel: 0.85 m/s Conv Inhibition (B-): 56959.45 J/kg Cap Strength: 7.88 C Lift Cond Lev (LCL): 703.38 mb = 3121.40 m = 10240.69 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 321 at 5 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 1012 98 0 0 -0.0 -0.0 | 141 5 -3.3 4.0 1 1000 191 295 1 0.9 -0.4 | 147 4 -2.4 3.6 2 987 305 360 1 -0.0 -1.0 | 133 4 -3.3 3.0 3 953 610 135 1 -0.7 0.7 | 140 6 -4.0 4.7 4 925 862 150 2 -1.0 1.7 | 143 7 -4.3 5.8 5 919 914 160 3 -1.0 2.8 | 148 8 -4.3 6.8 6 887 1219 135 4 -2.8 2.8 | 138 9 -6.1 6.9 7 850 1574 65 1 -0.9 -0.4 | 131 6 -4.2 3.6 8 824 1829 315 4 2.8 -2.8 | 159 1 -0.5 1.2 9 794 2134 320 9 5.8 -6.9 | 319 4 2.5 -2.9 10 765 2438 300 11 9.5 -5.5 | 283 6 6.2 -1.5 11 737 2743 330 9 4.5 -7.8 | 342 4 1.2 -3.8 12 700 3160 320 8 5.1 -6.1 | 319 3 1.9 -2.1 13 683 3353 310 10 7.7 -6.4 | 299 5 4.4 -2.4 14 657 3658 300 7 6.1 -3.5 | 259 3 2.8 0.5 15 607 4267 265 6 6.0 0.5 | 211 5 2.7 4.5 16 561 4877 275 8 8.0 -0.7 | 235 6 4.7 3.3 17 539 5182 260 10 9.8 1.7 | 229 9 6.6 5.8 18 519 5486 270 10 10.0 -0.0 | 239 8 6.7 4.0 19 500 5770 290 13 12.2 -4.4 | 273 9 8.9 -0.4 20 499 5791 290 14 13.2 -4.8 | 274 10 9.9 -0.8 21 478 6096 270 11 11.0 -0.0 | 242 9 7.7 4.0 22 440 6706 290 21 19.7 -7.2 | 281 17 16.4 -3.2 23 400 7410 290 32 30.1 -10.9 | 284 28 26.8 -6.9 24 388 7620 290 32 30.1 -10.9 | 284 28 26.8 -6.9 25 371 7925 275 33 32.9 -2.9 | 268 30 29.6 1.1 26 340 8534 290 43 40.4 -14.7 | 286 39 37.1 -10.7 27 312 9144 275 41 40.8 -3.6 | 269 38 37.6 0.5 28 300 9410 275 40 39.8 -3.5 | 269 37 36.6 0.5 29 250 10600 280 48 47.3 -8.3 | 276 44 44.0 -4.3 30 247 10668 280 48 47.3 -8.3 | 276 44 44.0 -4.3 31 236 10973 270 51 51.0 -0.0 | 265 48 47.7 4.0 32 200 12000 275 45 44.8 -3.9 | 270 42 41.5 0.1 33 184 12497 265 45 44.8 3.9 | 259 42 41.5 7.9 34 179 12680 265 64 63.8 5.6 | 261 61 60.5 9.6 35 176 12782 270 67 67.0 -0.0 | 266 64 63.7 4.0 36 167 13106 270 67 67.0 -0.0 | 266 64 63.7 4.0 37 150 13760 270 42 42.0 -0.0 | 264 39 38.7 4.0 38 144 14021 275 41 40.8 -3.6 | 269 38 37.6 0.5 39 137 14326 265 47 46.8 4.1 | 259 44 43.5 8.1 40 130 14630 275 50 49.8 -4.4 | 270 47 46.5 -0.3 41 124 14935 285 38 36.7 -9.8 | 280 34 33.4 -5.8 42 118 15240 270 30 30.0 -0.0 | 261 27 26.7 4.0 43 113 15545 280 42 41.4 -7.3 | 275 38 38.1 -3.3 44 107 15850 295 25 22.7 -10.6 | 289 20 19.4 -6.5 45 100 16280 255 24 23.2 6.2 | 243 22 19.9 10.2 46 97 16459 250 24 22.6 8.2 | 238 23 19.3 12.2 47 76 17983 275 33 32.9 -2.9 | 268 30 29.6 1.1 48 72 18288 270 30 30.0 -0.0 | 261 27 26.7 4.0 49 70 18490 295 21 19.0 -8.9 | 287 16 15.7 -4.9 50 69 18593 265 27 26.9 2.4 | 255 24 23.6 6.4 51 66 18898 280 24 23.6 -4.2 | 270 20 20.4 -0.1 52 62 19202 285 25 24.1 -6.5 | 277 21 20.9 -2.4 53 59 19507 315 20 14.1 -14.1 | 313 15 10.9 -10.1 54 57 19812 315 13 9.2 -9.2 | 311 8 5.9 -5.2 55 54 20117 290 11 10.3 -3.8 | 268 7 7.1 0.3 56 51 20422 250 10 9.4 3.4 | 219 10 6.1 7.4 57 50 20590 280 13 12.8 -2.3 | 259 10 9.5 1.8 58 49 20726 270 10 10.0 -0.0 | 239 8 6.7 4.0 59 47 21031 290 15 14.1 -5.1 | 276 11 10.8 -1.1 60 44 21336 265 9 9.0 0.8 | 230 7 5.7 4.8 61 42 21641 250 13 12.2 4.4 | 227 12 8.9 8.5 62 39 22250 300 10 8.7 -5.0 | 280 5 5.4 -1.0 63 30 23840 60 6 -5.2 -3.0 | 97 9 -8.5 1.0 64 29 24079 60 10 -8.7 -5.0 | 85 12 -11.9 -1.0 65 28 24384 100 7 -6.9 1.2 | 117 11 -10.2 5.2 66 25 24994 240 1 0.9 0.5 | 152 5 -2.4 4.5 67 20 26450 20 5 -1.7 -4.7 | 82 5 -5.0 -0.7 68 18 27127 60 10 -8.7 -5.0 | 85 12 -11.9 -1.0 69 17 27432 100 11 -10.8 1.9 | 113 15 -14.1 5.9 70 16 28042 125 12 -9.8 6.9 | 130 17 -13.1 10.9 71 15 28346 205 18 7.6 16.3 | 192 21 4.3 20.3 72 14 28956 235 12 9.8 6.9 | 211 13 6.5 10.9 73 13 29261 230 10 7.7 6.4 | 203 11 4.4 10.5 74 13 29566 180 15 0.0 15.0 | 170 19 -3.3 19.0 75 12 29870 220 17 10.9 13.0 | 204 19 7.6 17.0 76 11 30175 255 22 21.3 5.7 | 242 20 18.0 9.7 77 10 31060 320 12 7.7 -9.2 | 319 7 4.4 -5.2 Wind Parameters Mean winds (0-6000m): 290.8 at 6.9 knts Storm direction: 320.8 at 5.2 knts Shear (0-3000m) pos: 0.9 neg: 2.3 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): -178.1 deg Storm rel helicity (0-3000m) pos: 10.1 neg: -13.2 tot: -3.1 m^2/s^2 ave: -1.0 10^-3 m/s^2 rel: 0.07 Storm rel vorticity (0-3000m) horiz: 5.6 stream: 0.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.06 Bulk Shear: 6.01 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 5 1 133 5| 1.0 0.0 1.0| 2.0 -1.5 0.5 1.0 0.03| 4.4 0.1 1000 145 2 142 7| 1.9 0.0 1.9| 3.6 -2.7 0.9 0.9 0.06| 3.8 0.2 1500 135 2 139 7| 1.2 1.3 2.5| 3.6 -7.7 -4.1 -2.8 -0.15| 4.2 -0.6 2000 41 3 112 5| 0.9 3.1 4.0| 4.5 -9.2 -4.6 -2.3 0.06| 5.7 0.3 2500 311 4 173 1| 0.7 2.8 3.5| 7.6 -12.3 -4.7 -1.9 0.03| 5.9 0.2 3000 317 5 189 0| 0.9 2.3 3.2| 10.1 -13.2 -3.1 -1.0 0.07| 5.6 0.4 4000 310 6 252 1| 0.7 1.4 2.1| 10.1 -19.5 -9.4 -2.3 -0.11| 5.2 -0.6 5000 298 6 240 2| 0.6 1.4 2.0| 13.3 -21.3 -8.0 -1.6 -0.07| 4.7 -0.3 6000 291 7 244 4| 0.2 1.1 1.4| 27.8 -34.0 -6.1 -1.0 -0.03| 5.1 -0.2 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20250424.00.gif