UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025070412.upa.cvt Date: 1200Z 4 JUL 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 4 JUL 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 1008 98 20.8 14.8 69 6.0 17.0 0 0 293.3 295.2 289.8 323.4 10.55 1 1007 105 21.2 14.2 64 7.0 16.7 357 1 293.8 295.6 289.6 322.8 10.15 2 1005 120 21.6 12.6 57 9.0 16.0 351 4 294.3 296.0 288.9 320.6 9.15 3 1000 158 21.6 11.6 53 10.0 15.4 335 11 294.8 296.3 288.6 319.5 8.60 4 996 193 21.6 10.6 50 11.0 14.9 336 11 295.1 296.5 288.2 318.4 8.08 5 988 263 23.2 9.2 41 14.0 14.8 339 12 297.4 298.7 288.4 319.0 7.40 6 986 281 23.2 8.2 38 15.0 14.3 339 12 297.5 298.8 288.1 317.9 6.93 7 929 796 19.0 8.0 49 11.0 12.5 351 23 298.4 299.7 288.6 319.7 7.26 8 925 833 19.0 8.0 49 11.0 12.5 350 25 298.7 300.1 288.8 320.2 7.29 9 907 1002 18.4 7.4 49 11.0 11.9 347 29 299.8 301.1 289.0 320.9 7.13 10 857 1485 14.0 7.0 63 7.0 9.9 336 32 300.1 301.5 289.3 321.8 7.35 11 850 1554 13.6 5.6 58 8.0 9.0 335 32 300.4 301.6 288.8 320.3 6.72 12 849 1564 13.6 5.6 58 8.0 9.0 334 32 300.5 301.7 288.9 320.5 6.73 13 837 1683 13.0 8.0 72 5.0 10.0 328 34 301.1 302.6 290.3 325.0 8.07 14 819 1866 12.0 7.6 74 4.4 9.4 321 35 301.9 303.4 290.5 325.8 8.02 15 815 1906 11.8 7.4 74 4.4 9.2 321 35 302.1 303.6 290.5 325.8 7.95 16 808 1978 11.4 6.4 71 5.0 8.5 322 34 302.4 303.8 290.2 324.8 7.48 17 807 1989 11.6 2.6 54 9.0 6.8 323 33 302.8 303.8 288.8 320.0 5.72 18 805 2010 12.8 -13.2 15 26.0 2.5 323 33 304.3 304.6 285.2 309.7 1.71 19 803 2030 13.0 -22.0 7 35.0 1.3 323 33 304.7 304.8 284.3 307.4 0.82 20 799 2072 13.2 -28.8 4 42.0 0.8 324 32 305.3 305.4 284.1 306.8 0.44 21 726 2871 9.0 -33.0 3 42.0 -2.1 322 29 309.2 309.3 285.4 310.4 0.33 22 700 3172 8.4 -38.6 2 47.0 -2.9 315 24 311.8 311.8 286.2 312.5 0.19 23 681 3398 7.6 315 23 313.4 24 623 4123 2.2 -23.8 13 26.0 -5.8 311 26 315.3 315.4 288.2 318.3 0.90 25 610 4292 1.0 -27.0 10 28.0 -7.0 310 28 315.8 315.9 288.1 318.2 0.69 26 608 4319 1.0 -28.0 9 29.0 -7.1 310 28 316.1 316.2 288.2 318.3 0.63 27 570 4834 -1.9 -27.9 12 26.0 -9.0 306 32 318.6 318.7 289.0 320.9 0.68 28 567 4876 -2.1 -19.1 26 17.0 -7.9 305 32 318.8 319.1 289.9 323.9 1.49 29 566 4890 -2.3 -22.3 20 20.0 -8.5 305 32 318.7 318.9 289.5 322.6 1.13 30 563 4932 -2.7 -17.7 30 15.0 -7.9 304 32 318.7 319.1 290.1 324.4 1.69 31 557 5016 -3.3 -21.3 23 18.0 -9.0 302 32 319.0 319.3 289.8 323.3 1.25 32 555 5045 -3.5 -16.5 36 13.0 -8.2 301 32 319.1 319.5 290.4 325.5 1.90 33 554 5059 -3.7 -17.7 33 14.0 -8.6 301 32 319.0 319.4 290.2 324.8 1.72 34 541 5246 -5.5 -14.5 49 9.0 -8.9 296 32 319.1 319.5 290.7 326.7 2.30 35 540 5260 -5.3 -17.3 38 12.0 -9.5 296 32 319.5 319.8 290.5 325.6 1.82 36 538 5289 -5.1 -19.1 32 14.0 -9.8 295 32 320.0 320.4 290.4 325.4 1.57 37 532 5377 -5.9 -22.9 25 17.0 -11.0 293 32 320.1 320.3 290.0 324.1 1.14 38 529 5421 -5.9 -35.9 7 30.0 -12.4 292 32 320.6 320.7 289.3 321.9 0.34 39 521 5540 -6.5 -37.5 6 31.0 -12.9 291 33 321.3 321.4 289.5 322.4 0.29 40 511 5691 -7.9 -24.9 24 17.0 -12.6 293 35 321.4 321.6 290.2 324.9 0.99 41 500 5860 -8.7 -30.7 15 22.0 -13.9 295 38 322.4 322.5 290.2 324.6 0.59 42 480 6175 -10.9 -34.9 12 24.0 -15.9 296 37 323.5 323.6 290.3 325.0 0.41 43 479 6191 -10.7 -41.7 6 31.0 -16.2 296 37 323.9 324.0 290.2 324.7 0.21 44 468 6370 -12.1 -35.1 13 23.0 -16.8 298 37 324.4 324.4 290.5 325.9 0.41 45 458 6535 -12.9 -44.9 5 32.0 -17.9 299 37 325.4 325.4 290.6 326.0 0.15 46 444 6771 -14.9 -51.9 3 37.0 -19.6 302 37 325.8 325.8 290.6 326.0 0.07 47 416 7259 -19.3 -43.3 10 24.0 -22.7 307 37 326.2 326.3 290.9 327.0 0.20 48 406 7440 -20.7 -53.7 3 33.0 -24.1 309 37 326.7 326.7 290.9 326.9 0.06 49 400 7550 -21.7 -49.7 6 28.0 -24.8 310 37 326.8 326.8 290.9 327.2 0.10 50 363 8257 -27.9 -43.9 20 16.0 -29.7 317 38 327.7 327.7 291.3 328.5 0.21 51 359 8336 -28.1 -52.1 8 24.0 -30.2 318 38 328.5 328.5 291.4 328.8 0.09 52 355 8417 -28.7 -53.7 7 25.0 -30.7 319 38 328.7 328.7 291.5 329.0 0.07 53 318 9196 -34.7 -57.7 8 23.0 -36.0 326 36 330.9 330.9 292.0 331.1 0.05 54 300 9600 -38.5 -57.5 12 19.0 -39.5 340 38 331.1 331.1 292.1 331.3 0.05 55 289 9854 -40.9 -56.9 16 16.0 -41.6 340 38 331.2 331.2 292.1 331.5 0.06 56 268 10360 -44.5 -59.5 17 15.0 -45.0 325 34 333.2 333.2 292.6 333.4 0.05 57 250 10820 -47.7 -59.7 24 12.0 -48.1 335 32 335.2 335.2 293.2 335.4 0.05 58 201 12228 -57.3 -65.3 36 8.0 -57.5 280 35 341.5 341.5 294.7 341.7 0.03 59 200 12260 -56.5 -65.5 31 9.0 -56.6 280 37 343.3 343.3 295.1 343.4 0.03 60 150 14100 -55.5 -84.5 2 29.0 -55.8 310 43 374.5 374.5 301.4 374.5 0.00 61 100 16630 -63.1 -87.1 3 24.0 -63.3 295 14 405.8 405.8 306.0 405.8 0.00 62 90 17274 -66.1 -88.1 3 22.0 -66.2 295 19 412.3 412.3 306.8 412.3 0.00 63 85 17622 -65.1 -89.1 2 24.0 -65.3 313 29 421.1 421.1 307.9 421.1 0.00 64 83 17768 -63.1 -89.1 2 26.0 -63.3 319 28 428.0 428.0 308.6 428.0 0.00 65 81 17918 -63.9 -88.9 2 25.0 -64.1 325 26 429.4 429.4 308.7 429.4 0.00 66 74 18475 -61.1 -89.1 1 28.0 -61.4 343 20 446.5 446.5 310.5 446.5 0.00 67 70 18820 -62.1 -89.1 2 27.0 -62.4 345 8 451.5 451.5 311.0 451.5 0.00 68 66 19182 -62.9 -89.9 1 27.0 -63.2 309 3 457.5 457.5 311.5 457.5 0.00 69 59 19876 -59.3 -89.3 1 30.0 -59.9 45 10 480.4 480.4 313.5 480.5 0.00 70 58 19983 -59.7 -88.7 1 29.0 -60.2 38 10 481.9 481.9 313.6 481.9 0.00 71 51 20786 -59.3 -89.3 1 30.0 -59.9 50 16 500.9 500.9 315.0 500.9 0.00 72 50 20910 -56.7 -87.7 1 31.0 -57.5 55 15 509.9 509.9 315.7 509.9 0.00 73 42 22020 -56.1 -87.1 1 31.0 -57.2 71 22 537.4 537.4 317.3 537.4 0.00 74 39 22494 -54.3 -86.3 1 32.0 -55.6 85 23 553.5 553.5 318.3 553.5 0.01 75 38 22661 -54.9 -86.9 1 32.0 -56.2 88 25 556.1 556.1 318.4 556.1 0.01 76 30 24180 -53.3 -86.3 1 33.0 -55.2 65 33 599.3 599.3 320.6 599.4 0.01 77 23 25901 -51.7 -85.7 1 34.0 -54.4 90 30 651.4 651.4 322.7 651.4 0.01 78 20 26820 -46.7 -83.7 1 37.0 -51.2 95 25 693.2 693.2 324.2 693.4 0.02 79 14 29213 -42.3 -82.3 0 40.0 -49.9 101 30 782.6 782.6 326.8 782.9 0.03 80 14 29213 -41.3 -82.3 0 41.0 -49.4 101 30 786.0 786.0 326.9 786.3 0.03 81 12 30257 -43.3 -83.3 0 40.0 -51.1 90 29 814.3 814.3 327.6 814.6 0.03 82 11 30846 -40.9 -81.9 0 41.0 -50.3 90 31 843.6 843.6 328.2 844.0 0.04 83 10 31500 -37.7 -79.7 0 42.0 -49.3 90 33 878.8 878.9 329.0 879.5 0.07 84 9.3 31999 -38.9 -80.9 0 42.0 -50.1 892.7 892.7 329.3 893.3 0.06 85 8.4 32701 -36.7 -78.7 0 42.0 -49.7 927.7 927.7 329.9 928.7 0.10 TRP 201 12228 -57.3 -65.3 36 8.0 -57.5 280 35 341.5 341.5 294.7 341.7 0.03 WND Sounding variables and indices 1000-500 mb thick: 5702.00 m Freezing level: 594.90 mb = 4496.26 m = 14751.34 ft Wetbulb zero: 778.48 mb = 2289.12 m = 7510.15 ft Precipitable water: 0.69 inches Sfc-500 mean rel hum: 28.83 % Est. max temperature: 27.64 C = 81.75 F Sfc-Lift cond lev (LCL): 922.53 mb = 855.99 m = 2808.32 ft T: 18.92 C 700-500 lapse rate: 6.36 C/km ThetaE index: 18.93 C Layer 808.0- 726.0 mb Conv cond level (CCL): 627.08 mb = 4069.64 m = 13351.69 ft Mean mixing ratio: 7.39 g/kg Conv temperature: 42.68 C = 108.83 F Cap Strength: 8.75 C Lifted Index: 8.10 C Risk: None Lifted Index @300 mb: 8.82 C Lifted Index @700 mb: 8.26 C Showalter Index: 7.51 C Risk: None Total Totals Index: 36.60 C Risk: None Vertical Totals Index: 22.30 C Cross Totals Index: 14.30 C K Index: -19.10 Risk: None Sweat Index: 169.20 Risk: None Energy Index: 1.02 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 13.40 J/kg Max Up Vert Vel: 5.18 m/s Conv Inhibition (B-): 65968.90 J/kg Cap Strength: 8.71 C Lift Cond Lev (LCL): 799.51 mb = 2066.92 m = 6781.16 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 346 at 21 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 1008 98 0 0 -0.0 -0.0 | 166 21 -5.0 20.5 1 1000 158 335 11 4.6 -10.0 | 178 11 -0.3 10.5 2 983 305 340 12 4.1 -11.3 | 175 9 -0.9 9.2 3 949 610 355 15 1.3 -14.9 | 146 7 -3.7 5.5 4 925 833 350 25 4.3 -24.6 | 9 4 -0.6 -4.1 5 916 914 350 28 4.9 -27.6 | 1 7 -0.1 -7.1 6 884 1219 340 31 10.6 -29.1 | 327 10 5.6 -8.7 7 850 1554 335 32 13.5 -29.0 | 315 12 8.5 -8.5 8 822 1829 320 36 23.1 -27.6 | 291 20 18.2 -7.1 9 793 2134 325 31 17.8 -25.4 | 291 14 12.8 -4.9 10 764 2438 320 29 18.6 -22.2 | 277 14 13.7 -1.7 11 737 2743 330 31 15.5 -26.8 | 301 12 10.5 -6.4 12 710 3048 310 26 19.9 -16.7 | 256 15 14.9 3.8 13 700 3172 315 24 17.0 -17.0 | 254 12 12.0 3.5 14 659 3658 315 22 15.6 -15.6 | 245 12 10.6 4.9 15 610 4267 310 28 21.4 -18.0 | 261 17 16.5 2.5 16 565 4877 305 32 26.2 -18.4 | 264 21 21.2 2.1 17 524 5486 290 32 30.1 -10.9 | 249 27 25.1 9.5 18 500 5860 295 38 34.4 -16.1 | 261 30 29.5 4.4 19 485 6096 295 37 33.5 -15.6 | 260 29 28.6 4.8 20 400 7550 310 37 28.3 -23.8 | 278 24 23.4 -3.3 21 396 7620 310 37 28.3 -23.8 | 278 24 23.4 -3.3 22 348 8534 320 38 24.4 -29.1 | 294 21 19.5 -8.6 23 334 8839 315 33 23.3 -23.3 | 279 19 18.4 -2.9 24 320 9144 325 36 20.6 -29.5 | 300 18 15.7 -9.0 25 306 9449 335 36 15.2 -32.6 | 320 16 10.2 -12.2 26 300 9600 340 38 13.0 -35.7 | 332 17 8.0 -15.2 27 280 10058 340 38 13.0 -35.7 | 332 17 8.0 -15.2 28 268 10363 325 34 19.5 -27.9 | 297 16 14.5 -7.4 29 250 10820 335 32 13.5 -29.0 | 315 12 8.5 -8.5 30 233 11278 340 32 10.9 -30.1 | 328 11 6.0 -9.6 31 212 11887 320 20 12.9 -15.3 | 237 9 7.9 5.2 32 202 12192 280 22 21.7 -3.8 | 225 24 16.7 16.7 33 201 12228 280 35 34.5 -6.1 | 244 33 29.5 14.4 34 200 12260 280 37 36.4 -6.4 | 246 34 31.5 14.1 35 193 12497 285 39 37.7 -10.1 | 252 34 32.7 10.4 36 184 12802 310 38 29.1 -24.4 | 279 24 24.1 -3.9 37 159 13716 295 34 30.8 -14.4 | 257 27 25.8 6.1 38 150 14100 310 43 32.9 -27.6 | 284 29 28.0 -7.2 39 145 14326 305 46 37.7 -26.4 | 280 33 32.7 -5.9 40 125 15240 315 31 21.9 -21.9 | 275 17 16.9 -1.4 41 119 15545 295 25 22.7 -10.6 | 241 20 17.7 9.9 42 108 16154 315 26 18.4 -18.4 | 261 14 13.4 2.1 43 103 16459 330 26 13.0 -22.5 | 284 8 8.0 -2.0 44 100 16630 295 14 12.7 -5.9 | 208 16 7.7 14.6 45 98 16764 295 14 12.7 -5.9 | 208 16 7.7 14.6 46 93 17069 275 16 15.9 -1.4 | 210 22 11.0 19.1 47 89 17374 305 21 17.2 -12.0 | 235 15 12.2 8.4 48 84 17678 315 30 21.2 -21.2 | 273 16 16.2 -0.7 49 76 18288 340 20 6.8 -18.8 | 228 3 1.9 1.7 50 73 18593 345 20 5.2 -19.3 | 190 1 0.2 1.2 51 70 18820 345 8 2.1 -7.7 | 167 13 -2.9 12.7 52 69 18898 15 10 -2.6 -9.7 | 145 13 -7.6 10.8 53 66 19202 305 3 2.5 -1.7 | 172 19 -2.5 18.8 54 63 19507 345 10 2.6 -9.7 | 168 11 -2.4 10.8 55 60 19812 50 10 -7.7 -6.4 | 138 19 -12.6 14.0 56 57 20117 30 10 -5.0 -8.7 | 140 15 -10.0 11.8 57 54 20422 35 18 -10.3 -14.7 | 111 16 -15.3 5.7 58 50 20910 55 15 -12.3 -8.6 | 125 21 -17.3 11.9 59 49 21031 90 14 -14.0 0.0 | 137 28 -19.0 20.5 60 47 21336 60 13 -11.3 -6.5 | 131 21 -16.2 14.0 61 43 21946 75 25 -24.1 -6.5 | 116 32 -29.1 14.0 62 41 22250 60 13 -11.3 -6.5 | 131 21 -16.2 14.0 63 39 22555 90 25 -25.0 0.0 | 124 36 -30.0 20.5 64 32 23774 70 30 -28.2 -10.3 | 107 35 -33.2 10.2 65 30 24079 90 23 -23.0 0.0 | 126 35 -28.0 20.5 66 30 24180 65 33 -29.9 -13.9 | 101 35 -34.9 6.5 67 29 24384 70 23 -21.6 -7.9 | 115 29 -26.6 12.6 68 28 24689 75 39 -37.7 -10.1 | 104 44 -42.6 10.4 69 26 24994 85 36 -35.9 -3.1 | 113 44 -40.8 17.3 70 20 26820 95 25 -24.9 2.2 | 127 37 -29.9 22.7 71 19 27127 95 25 -24.9 2.2 | 127 37 -29.9 22.7 72 18 27432 85 28 -27.9 -2.4 | 119 37 -32.9 18.0 73 16 28346 80 29 -28.6 -5.0 | 115 37 -33.5 15.4 74 15 28651 95 37 -36.9 3.2 | 120 48 -41.8 23.7 75 15 28956 105 34 -32.8 8.8 | 128 48 -37.8 29.3 76 13 29566 95 25 -24.9 2.2 | 127 37 -29.9 22.7 77 12 30175 90 29 -29.0 0.0 | 121 40 -34.0 20.5 78 10 31500 90 33 -33.0 0.0 | 118 43 -38.0 20.5 Wind Parameters Mean winds (0-6000m): 316.3 at 28.1 knts Storm direction: 346.3 at 21.1 knts Shear (0-3000m) pos: 0.3 neg: 4.6 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 88.9 deg Storm rel helicity (0-3000m) pos: 25.1 neg: -104.9 tot: -79.7 m^2/s^2 ave: -26.6 10^-3 m/s^2 rel: -0.46 Storm rel vorticity (0-3000m) horiz: 12.1 stream: -5.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.30 Bulk Shear: 45.31 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 ------------------------------------------------------------------------------- 500 344 12 169 9| 0.0 15.3 15.3| 10.9 -8.2 2.7 5.3 -0.06| 17.3 -1.0 1000 348 18 158 3| 0.0 15.3 15.3| 10.9 -21.5 -10.6 -10.6 -0.39| 17.5 -6.9 1500 343 22 304 2| 0.0 11.2 11.2| 10.9 -36.5 -25.6 -17.1 -0.46| 14.0 -6.4 2000 337 25 299 6| 0.0 8.1 8.1| 10.9 -59.0 -48.0 -24.0 -0.46| 13.5 -6.2 2500 333 26 294 7| 0.3 6.5 6.8| 19.1 -69.7 -50.6 -20.3 -0.42| 12.0 -5.1 3000 331 27 291 8| 0.3 4.6 4.9| 25.1-104.9 -79.7 -26.6 -0.46| 12.1 -5.6 4000 327 26 278 9| 0.6 4.0 4.6| 35.0-111.3 -76.3 -19.1 -0.41| 10.1 -4.1 5000 322 27 274 11| 0.5 3.8 4.3| 42.8-124.4 -81.6 -16.3 -0.37| 9.0 -3.3 6000 316 28 269 14| 0.2 3.3 3.5| 86.0-153.4 -67.4 -11.2 -0.31| 8.6 -2.6 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20250704.12.gif