UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025061800.upa.cvt Date: 0000Z 18 JUN 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 18 JUN 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 1003 98 26.4 23.7 85 2.7 24.5 145 5 299.3 302.7 297.5 354.0 18.70 1 1001 109 25.4 22.6 85 2.8 23.4 152 6 298.5 301.6 296.5 349.4 17.50 2 1000 114 25.4 22.4 83 3.0 23.2 155 6 298.5 301.7 296.4 348.9 17.30 3 945 611 21.6 21.1 97 0.5 21.3 195 15 299.6 302.6 296.4 348.9 16.90 4 929 759 20.8 20.4 98 0.4 20.5 211 20 300.2 303.2 296.3 348.4 16.45 5 925 797 20.6 20.1 97 0.5 20.2 215 21 300.4 303.3 296.2 347.9 16.22 6 887 1160 19.2 16.8 86 2.4 17.5 228 20 302.5 305.1 295.0 343.0 13.70 7 875 1278 17.6 17.6 100 0.0 17.6 238 20 302.1 304.8 295.6 345.2 14.63 8 859 1436 16.6 16.1 97 0.5 16.3 262 19 302.6 305.1 295.0 342.6 13.52 9 857 1456 17.4 15.1 86 2.3 15.8 265 19 303.7 306.0 294.7 341.4 12.70 10 855 1476 16.6 15.6 94 1.0 16.0 268 19 303.0 305.5 294.8 342.0 13.15 11 850 1526 16.6 14.9 90 1.7 15.5 260 17 303.5 305.9 294.6 341.1 12.64 12 847 1556 16.0 14.9 93 1.1 15.3 261 17 303.2 305.6 294.5 340.8 12.68 13 846 1566 17.6 13.0 74 4.6 14.6 261 17 305.0 307.1 293.9 338.5 11.20 14 845 1576 17.8 12.8 73 5.0 14.6 262 17 305.3 307.4 293.9 338.4 11.06 15 844 1587 17.8 12.9 73 4.9 14.6 262 18 305.4 307.5 294.0 338.8 11.15 16 791 2139 14.0 10.4 79 3.6 11.7 270 23 307.1 308.9 293.7 337.5 10.07 17 754 2542 11.8 6.8 71 5.0 8.8 270 25 308.9 310.5 292.8 334.1 8.25 18 718 2951 9.4 6.8 84 2.6 7.8 270 24 310.6 312.3 293.6 337.3 8.67 19 700 3162 8.6 5.3 80 3.3 6.6 265 25 312.0 313.5 293.5 336.8 8.01 20 691 3269 7.8 4.8 81 3.0 6.1 261 24 312.3 313.8 293.4 336.6 7.83 21 687 3317 8.4 4.2 75 4.2 5.9 259 24 313.5 314.9 293.6 337.0 7.55 22 677 3438 7.6 3.2 74 4.4 5.1 254 23 313.9 315.2 293.4 336.2 7.13 23 637 3936 3.6 2.4 92 1.2 2.9 245 24 314.9 316.2 293.7 337.3 7.16 24 631 4013 3.4 1.1 85 2.3 2.1 245 24 315.5 316.7 293.4 336.2 6.58 25 616 4208 2.6 1.5 92 1.1 2.0 245 25 316.7 318.1 294.0 338.7 6.94 26 608 4313 2.0 0.6 90 1.4 1.3 245 26 317.2 318.5 293.9 338.1 6.59 27 604 4366 2.4 -1.1 78 3.5 0.5 246 26 318.3 319.4 293.6 337.0 5.85 28 577 4734 -0.3 -1.7 90 1.4 -1.0 252 25 319.3 320.5 293.9 338.2 5.86 29 572 4804 0.0 -2.3 84 2.3 -1.2 254 24 320.5 321.6 294.0 338.7 5.66 30 557 5017 -1.1 -3.2 86 2.1 -2.2 254 25 321.6 322.7 294.1 339.3 5.43 31 555 5045 -0.9 -5.4 71 4.5 -3.1 254 25 322.2 323.1 293.6 337.3 4.61 32 541 5249 -2.7 -6.3 76 3.6 -4.4 253 26 322.4 323.3 293.6 336.9 4.42 33 538 5293 -2.7 -8.7 63 6.0 -5.4 253 26 322.9 323.6 293.1 335.1 3.68 34 516 5623 -4.9 -8.2 78 3.3 -6.4 251 28 324.1 324.9 293.7 337.4 4.00 35 508 5745 -5.3 -9.6 72 4.3 -7.2 251 28 325.1 325.8 293.6 337.2 3.64 36 507 5761 -5.3 -14.3 49 9.0 -8.8 251 28 325.3 325.8 292.7 333.7 2.49 37 505 5792 -5.5 -15.5 45 10.0 -9.3 250 29 325.4 325.9 292.6 333.1 2.27 38 501 5854 -6.1 -12.1 62 6.0 -8.6 250 29 325.4 326.0 293.2 335.6 3.02 39 500 5870 -6.1 -13.1 58 7.0 -8.9 250 29 325.6 326.2 293.0 335.0 2.79 40 498 5901 -6.5 -9.9 77 3.4 -8.0 250 29 325.5 326.2 293.7 337.6 3.62 41 496 5933 -6.5 -12.5 62 6.0 -8.9 250 29 325.9 326.4 293.3 335.8 2.95 42 489 6045 -7.3 -12.2 68 4.9 -9.3 250 30 326.2 326.8 293.4 336.6 3.07 43 487 6077 -7.5 -10.7 78 3.2 -8.9 250 30 326.3 327.0 293.9 338.0 3.48 44 485 6109 -7.3 -14.3 57 7.0 -10.0 250 30 327.0 327.5 293.3 335.9 2.61 45 478 6222 -7.9 -13.9 62 6.0 -10.3 251 30 327.6 328.1 293.6 336.9 2.73 46 472 6321 -8.7 -13.7 67 5.0 -10.7 251 31 327.8 328.4 293.7 337.4 2.81 47 465 6437 -9.1 -18.1 48 9.0 -12.2 252 31 328.7 329.1 293.2 335.6 1.98 48 455 6606 -10.3 -15.3 67 5.0 -12.2 253 31 329.2 329.8 293.9 338.0 2.56 49 453 6640 -10.5 -16.5 61 6.0 -12.7 254 31 329.4 329.9 293.7 337.4 2.32 50 451 6674 -10.9 -16.9 61 6.0 -13.0 254 32 329.3 329.8 293.6 337.1 2.26 51 449 6708 -11.1 -12.4 90 1.3 -11.6 254 32 329.5 330.1 294.5 340.7 3.29 52 442 6829 -12.1 -13.7 88 1.6 -12.8 255 32 329.7 330.3 294.3 340.0 3.01 53 440 6864 -11.9 -16.9 66 5.0 -13.7 255 32 330.4 330.9 293.9 338.4 2.31 54 400 7590 -16.7 -22.7 60 6.0 -18.4 260 34 333.3 333.6 294.0 338.8 1.54 55 300 9690 -32.1 -41.1 40 9.0 -33.2 250 35 340.1 340.2 294.7 341.5 0.35 56 250 10950 -42.3 -51.3 37 9.0 -42.9 265 41 343.2 343.2 295.2 343.7 0.14 57 200 12410 -54.7 -65.7 24 11.0 -54.9 245 42 346.1 346.2 295.8 346.3 0.03 58 150 14190 -67.7 -74.7 36 7.0 -67.8 240 33 353.5 353.5 297.4 353.5 0.01 59 142 14521 -70.3 -75.3 48 5.0 -70.4 240 40 354.5 354.5 297.6 354.5 0.01 60 100 16650 -65.1 -87.1 3 22.0 -65.3 250 13 401.9 401.9 305.5 402.0 0.00 61 83 17779 -68.9 -88.9 4 20.0 -69.0 216 11 416.2 416.2 307.3 416.2 0.00 62 77 18231 -66.9 -88.9 3 22.0 -67.1 319 5 429.4 429.4 308.8 429.4 0.00 63 74 18471 -68.3 -89.3 3 21.0 -68.4 335 6 431.4 431.4 309.0 431.4 0.00 64 72 18637 -64.5 -89.5 2 25.0 -64.7 340 8 442.8 442.8 310.1 442.8 0.00 65 70 18810 -63.7 -88.7 2 25.0 -64.0 345 10 448.1 448.1 310.7 448.1 0.00 66 68 18987 -63.7 -88.7 2 25.0 -64.0 359 13 451.8 451.8 311.0 451.8 0.00 67 66 19170 -65.1 -89.1 2 24.0 -65.3 13 16 452.7 452.7 311.1 452.7 0.00 68 59 19856 -62.5 -88.5 2 26.0 -62.9 89 16 473.3 473.3 312.9 473.3 0.00 69 55 20292 -58.3 -87.3 1 29.0 -58.9 137 16 492.5 492.5 314.4 492.5 0.00 70 53 20524 -59.5 -87.5 1 28.0 -60.1 186 13 494.9 494.9 314.6 495.0 0.00 71 50 20890 -57.7 -86.7 1 29.0 -58.5 305 2 507.5 507.5 315.5 507.5 0.00 72 47 21281 -57.5 -86.5 1 29.0 -58.3 256 5 517.0 517.0 316.1 517.1 0.00 73 46 21416 -58.3 -87.3 1 29.0 -59.0 277 5 518.3 518.3 316.2 518.3 0.00 74 43 21843 -55.9 -85.9 1 30.0 -56.9 337 9 534.3 534.3 317.2 534.3 0.01 75 41 22146 -57.1 -86.1 1 29.0 -58.0 0 12 538.6 538.6 317.5 538.7 0.01 76 38 22629 -55.1 -86.1 1 31.0 -56.4 32 16 555.6 555.6 318.4 555.6 0.01 77 37 22799 -56.1 -86.1 1 30.0 -57.3 57 15 557.3 557.3 318.5 557.3 0.01 78 30 24140 -53.7 -85.7 1 32.0 -55.5 110 13 598.2 598.2 320.5 598.3 0.01 79 26 25064 -52.5 -84.5 1 32.0 -54.8 89 16 626.6 626.6 321.7 626.7 0.01 80 24 25581 -52.7 -84.7 1 32.0 -55.1 119 20 640.6 640.6 322.3 640.7 0.01 81 20 26780 -45.1 -82.1 1 37.0 -50.2 80 14 698.1 698.1 324.4 698.3 0.02 82 18 27486 -43.7 -80.7 1 37.0 -49.7 56 10 723.9 723.9 325.2 724.2 0.03 83 16 28274 -45.7 -82.7 1 37.0 -51.3 57 19 742.2 742.2 325.7 742.4 0.03 84 15 28704 -45.3 -82.3 1 37.0 -51.3 99 16 757.3 757.3 326.1 757.6 0.03 85 13 29667 -41.5 -81.5 1 40.0 -49.8 76 23 802.1 802.1 327.3 802.5 0.04 86 12 30209 -42.1 -81.1 1 39.0 -50.4 84 24 818.6 818.6 327.7 819.0 0.05 87 11 30796 -44.1 -82.1 1 38.0 -51.8 91 24 831.9 832.0 328.0 832.3 0.04 88 10 31440 -40.5 -81.5 0 41.0 -50.5 100 25 868.4 868.4 328.8 868.9 0.05 89 9.1 32086 -37.9 -79.9 0 42.0 -49.8 99 29 902.1 902.1 329.5 902.9 0.07 90 7.9 33062 -36.7 -78.7 0 42.0 -50.1 97 35 944.1 944.2 330.2 945.3 0.10 91 7.6 33330 -37.5 -79.5 0 42.0 -50.6 96 37 951.4 951.4 330.4 952.4 0.09 92 7.0 33900 -35.1 -78.1 0 43.0 -50.1 95 40 983.9 984.0 330.9 985.4 0.13 93 5.9 35106 -29.5 -74.5 0 45.0 -49.2 1057.6 1057.7 332.1 1061.0 0.27 TRP 142 14521 -70.3 -75.3 48 5.0 -70.4 240 40 354.5 354.5 297.6 354.5 0.01 WND Sounding variables and indices 1000-500 mb thick: 5756.00 m Freezing level: 580.00 mb = 4693.49 m = 15398.40 ft Freezing level: 572.00 mb = 4804.07 m = 15761.18 ft Freezing level: 572.00 mb = 4804.07 m = 15761.18 ft Wetbulb zero: 594.66 mb = 4491.82 m = 14736.76 ft Precipitable water: 2.12 inches Sfc-500 mean rel hum: 81.93 % Est. max temperature: 30.34 C = 86.61 F Sfc-Lift cond lev (LCL): 964.83 mb = 428.36 m = 1405.37 ft T: 23.00 C 700-500 lapse rate: 5.43 C/km ThetaE index: 5.90 C Layer 929.0- 875.0 mb Conv cond level (CCL): 921.73 mb = 827.63 m = 2715.27 ft Mean mixing ratio: 16.65 g/kg Conv temperature: 27.66 C = 81.80 F Cap Strength: 0.73 C Lifted Index: -2.60 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.88 C Lifted Index @700 mb: -1.56 C Showalter Index: 0.27 C Risk: Thunderstorms probable Total Totals Index: 43.70 C Risk: None Vertical Totals Index: 22.70 C Cross Totals Index: 21.00 C K Index: 34.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 241.80 Risk: None Energy Index: -1.22 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 961.97 J/kg Max Up Vert Vel: 43.86 m/s Conv Inhibition (B-): 4.04 J/kg Cap Strength: 0.72 C Lift Cond Lev (LCL): 933.93 mb = 713.37 m = 2340.43 ft Lev Free Conv (LFC): 878.93 mb = 1238.96 m = 4064.78 ft Equ Level (EL): 838.93 mb = 1637.83 m = 5373.38 ft B at Equ Level: 16.82 J/kg Max Parcel Lev (MPL): 108.93 mb = 16130.67 m = 52921.51 ft Wind level data Storm motion: 281 at 17 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 1003 98 145 5 -2.9 4.1 | 111 21 -19.5 7.3 1 1000 114 155 6 -2.5 5.4 | 114 21 -19.2 8.7 2 978 305 160 10 -3.4 9.4 | 122 24 -20.1 12.6 3 945 610 195 15 3.9 14.5 | 144 22 -12.8 17.7 4 925 797 215 21 12.0 17.2 | 167 21 -4.6 20.4 5 912 914 220 21 13.5 16.1 | 171 20 -3.2 19.3 6 881 1219 230 20 15.3 12.9 | 175 16 -1.3 16.1 7 850 1524 275 19 18.9 -1.7 | 235 3 2.3 1.6 8 850 1526 260 17 16.7 3.0 | 181 6 0.1 6.2 9 820 1829 270 20 20.0 -0.0 | 226 5 3.3 3.2 10 791 2134 270 23 23.0 -0.0 | 243 7 6.3 3.2 11 763 2438 270 25 25.0 -0.0 | 249 9 8.3 3.2 12 736 2743 270 25 25.0 -0.0 | 249 9 8.3 3.2 13 710 3048 270 23 23.0 -0.0 | 243 7 6.3 3.2 14 700 3162 265 25 24.9 2.2 | 237 10 8.2 5.4 15 658 3658 245 22 19.9 9.3 | 195 13 3.3 12.5 16 610 4267 245 26 23.6 11.0 | 206 16 6.9 14.2 17 566 4877 255 24 23.2 6.2 | 215 11 6.5 9.5 18 500 5870 250 29 27.3 9.9 | 219 17 10.6 13.2 19 486 6096 250 30 28.2 10.3 | 220 18 11.5 13.5 20 400 7590 260 34 33.5 5.9 | 241 19 16.8 9.1 21 398 7620 255 34 32.8 8.8 | 233 20 16.2 12.0 22 382 7925 260 34 33.5 5.9 | 241 19 16.8 9.1 23 323 9144 255 37 35.7 9.6 | 236 23 19.1 12.8 24 300 9690 250 35 32.9 12.0 | 227 22 16.2 15.2 25 297 9754 250 35 32.9 12.0 | 227 22 16.2 15.2 26 284 10058 265 39 38.9 3.4 | 253 23 22.2 6.6 27 250 10950 265 41 40.8 3.6 | 254 25 24.2 6.8 28 249 10973 265 41 40.8 3.6 | 254 25 24.2 6.8 29 200 12410 245 42 38.1 17.7 | 226 30 21.4 21.0 30 188 12802 240 43 37.2 21.5 | 220 32 20.6 24.7 31 154 14021 260 36 35.5 6.3 | 243 21 18.8 9.5 32 150 14190 240 33 28.6 16.5 | 211 23 11.9 19.7 33 142 14521 240 40 34.6 20.0 | 218 29 18.0 23.2 34 139 14630 240 40 34.6 20.0 | 218 29 18.0 23.2 35 133 14935 255 27 26.1 7.0 | 223 14 9.4 10.2 36 126 15240 245 29 26.3 12.3 | 212 18 9.6 15.5 37 120 15545 285 17 16.4 -4.4 | 12 1 -0.2 -1.2 38 114 15850 280 15 14.8 -2.6 | 109 2 -1.9 0.6 39 109 16154 245 16 14.5 6.8 | 168 10 -2.2 10.0 40 103 16459 250 9 8.5 3.1 | 128 10 -8.2 6.3 41 100 16650 250 13 12.2 4.4 | 150 9 -4.4 7.7 42 93 17069 250 13 12.2 4.4 | 150 9 -4.4 7.7 43 89 17374 290 11 10.3 -3.8 | 85 6 -6.3 -0.5 44 84 17678 190 11 1.9 10.8 | 134 20 -14.8 14.1 45 80 17983 270 10 10.0 -0.0 | 116 7 -6.7 3.2 46 76 18288 330 4 2.0 -3.5 | 89 15 -14.7 -0.2 47 70 18810 345 10 2.6 -9.7 | 65 15 -14.1 -6.4 48 66 19202 15 17 -4.4 -16.4 | 58 25 -21.1 -13.2 49 54 20422 150 16 -8.0 13.9 | 125 30 -24.7 17.1 50 50 20890 305 2 1.6 -1.1 | 98 15 -15.0 2.1 51 49 21031 210 10 5.0 8.7 | 136 17 -11.7 11.9 52 47 21336 265 4 4.0 0.3 | 106 13 -12.7 3.6 53 42 21946 350 10 1.7 -9.8 | 66 16 -14.9 -6.6 54 40 22250 5 13 -1.1 -13.0 | 61 20 -17.8 -9.7 55 38 22555 20 17 -5.8 -16.0 | 60 26 -22.5 -12.7 56 37 22860 65 15 -13.6 -6.3 | 84 30 -30.3 -3.1 57 35 23165 40 10 -6.4 -7.7 | 79 24 -23.1 -4.4 58 33 23470 55 5 -4.1 -2.9 | 91 21 -20.8 0.4 59 32 23774 100 22 -21.7 3.8 | 100 39 -38.3 7.1 60 30 24079 125 20 -16.4 11.5 | 114 36 -33.0 14.7 61 30 24140 110 13 -12.2 4.4 | 105 30 -28.9 7.7 62 29 24384 125 13 -10.6 7.5 | 111 29 -27.3 10.7 63 28 24689 90 10 -10.0 0.0 | 97 27 -26.7 3.2 64 26 24994 85 15 -14.9 -1.3 | 94 32 -31.6 1.9 65 24 25603 120 20 -17.3 10.0 | 111 36 -34.0 13.2 66 22 26213 75 18 -17.4 -4.7 | 88 34 -34.0 -1.4 67 21 26518 85 14 -13.9 -1.2 | 94 31 -30.6 2.0 68 20 26780 80 14 -13.8 -2.4 | 92 30 -30.4 0.8 69 20 26822 70 18 -16.9 -6.2 | 85 34 -33.6 -2.9 70 19 27127 85 16 -15.9 -1.4 | 93 33 -32.6 1.8 71 18 27432 60 10 -8.7 -5.0 | 86 25 -25.3 -1.8 72 17 27737 40 11 -7.1 -8.4 | 78 24 -23.7 -5.2 73 17 28042 65 18 -16.3 -7.6 | 82 33 -33.0 -4.4 74 16 28346 55 19 -15.6 -10.9 | 77 33 -32.2 -7.7 75 15 28651 100 15 -14.8 2.6 | 101 32 -31.4 5.8 76 14 29261 95 20 -19.9 1.7 | 98 37 -36.6 5.0 77 13 29566 75 23 -22.2 -6.0 | 86 39 -38.9 -2.7 78 10 31440 100 25 -24.6 4.3 | 100 42 -41.3 7.6 79 7 33900 95 40 -39.8 3.5 | 97 57 -56.5 6.7 Wind Parameters Mean winds (0-6000m): 251.0 at 22.6 knts Storm direction: 281.0 at 17.0 knts Shear (0-3000m) pos: 4.4 neg: 0.3 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 129.4 deg Storm rel helicity (0-3000m) pos: 167.4 neg: -5.5 tot: 161.9 m^2/s^2 ave: 54.0 10^-3 m/s^2 rel: 0.59 Storm rel vorticity (0-3000m) horiz: 9.8 stream: 5.7 10^-3/s Energy-Hel index: 0.99 Bulk Rich Number: 13.89 Bulk Shear: 69.26 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 ------------------------------------------------------------------------------- 500 173 10 127 22| 12.5 0.0 12.5| 77.9 0.0 77.9 155.8 0.92| 14.4 13.3 1000 201 15 147 21| 10.4 0.0 10.4|139.7 0.0 139.7 139.7 0.89| 14.0 12.4 1500 219 16 159 17| 7.0 0.0 7.0|158.8 -2.9 155.9 103.9 0.63| 15.8 9.9 2000 235 17 170 13| 6.6 0.0 6.6|165.4 -2.9 162.5 81.2 0.65| 13.4 8.7 2500 245 19 182 11| 5.3 0.5 5.8|167.4 -2.9 164.5 65.8 0.64| 11.2 7.1 3000 251 20 192 10| 4.4 0.3 4.7|167.4 -5.5 161.9 54.0 0.59| 9.8 5.7 4000 251 21 197 10| 3.3 1.4 4.7|174.3 -29.8 144.6 36.1 0.39| 9.0 3.5 5000 251 22 200 11| 2.9 1.1 4.0|185.8 -29.8 156.0 31.2 0.39| 7.9 3.1 6000 251 23 204 12| 2.4 1.2 3.6|190.6 -29.8 160.9 26.8 0.38| 7.0 2.7 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20250618.00.gif