UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042512.upa.cvt Date: 1200Z 25 APR 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 25 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 1013 98 13.0 9.8 81 3.2 11.2 140 5 285.1 286.4 283.8 306.0 7.52 1 1011 113 13.0 9.5 79 3.5 11.0 149 7 285.3 286.5 283.7 305.8 7.38 2 1005 159 14.4 9.6 73 4.8 11.7 177 11 287.1 288.4 284.6 308.1 7.48 3 1000 198 15.2 11.5 79 3.7 13.0 200 15 288.4 289.9 286.1 312.3 8.55 4 997 223 15.4 12.7 84 2.7 13.8 202 16 288.8 290.4 287.1 314.9 9.29 5 990 283 15.2 13.5 90 1.7 14.1 208 19 289.2 290.9 287.7 316.9 9.86 6 988 300 15.2 14.0 93 1.2 14.4 210 20 289.3 291.1 288.1 318.0 10.22 7 969 465 13.8 13.7 99 0.1 13.7 215 21 289.5 291.3 288.2 318.3 10.22 8 955 588 14.6 13.6 94 1.0 14.0 219 22 291.6 293.4 289.0 320.8 10.30 9 949 641 16.0 12.1 78 3.9 13.6 218 21 293.5 295.2 288.8 320.4 9.38 10 941 713 15.6 11.1 75 4.5 12.9 214 19 293.8 295.4 288.5 319.2 8.85 11 928 831 16.0 5.0 48 11.0 10.0 207 17 295.4 296.5 286.2 312.6 5.90 12 925 859 15.8 5.8 51 10.0 10.2 205 16 295.5 296.6 286.6 313.7 6.26 13 867 1405 11.4 3.4 58 8.0 7.2 204 13 296.4 297.4 286.4 313.0 5.64 14 861 1463 11.0 2.0 54 9.0 6.3 202 13 296.6 297.5 285.9 311.7 5.13 15 850 1570 10.0 4.0 66 6.0 6.8 205 12 296.6 297.7 286.8 314.2 6.00 16 846 1609 9.8 2.8 62 7.0 6.1 205 13 296.8 297.8 286.4 313.1 5.54 17 838 1688 9.8 -3.2 40 13.0 3.8 205 14 297.6 298.3 284.7 308.4 3.60 18 809 1979 7.2 -2.8 49 10.0 2.5 205 16 297.9 298.6 285.1 309.4 3.84 19 791 2164 6.4 -8.6 33 15.0 0.3 204 15 298.9 299.4 284.1 306.7 2.52 20 774 2342 6.2 -17.8 16 24.0 -1.9 198 11 300.6 300.8 283.2 304.5 1.22 21 769 2395 6.0 -19.0 15 25.0 -2.1 197 10 300.9 301.1 283.2 304.5 1.11 22 737 2742 4.6 -22.4 12 27.0 -3.6 180 11 303.1 303.2 283.8 305.9 0.86 23 727 2853 4.0 -16.0 22 20.0 -3.0 190 12 303.6 303.9 284.7 308.4 1.51 24 719 2943 3.2 -19.8 17 23.0 -4.1 199 12 303.7 303.9 284.3 307.3 1.10 25 700 3159 1.4 -18.6 21 20.0 -5.1 220 13 304.0 304.3 284.6 308.1 1.26 26 687 3309 0.0 -17.0 26 17.0 -5.6 220 13 304.1 304.4 284.9 308.8 1.47 27 681 3379 0.2 -22.8 16 23.0 -6.5 222 13 305.1 305.3 284.6 308.1 0.90 28 670 3510 -0.7 -27.7 11 27.0 -7.6 232 10 305.5 305.6 284.4 307.5 0.59 29 662 3606 0.0 -37.0 4 37.0 -7.8 240 8 307.4 307.4 284.7 308.2 0.24 30 660 3630 0.0 -34.0 6 34.0 -7.7 242 8 307.6 307.7 284.8 308.8 0.33 31 658 3654 -0.3 -25.3 13 25.0 -7.2 244 7 307.5 307.7 285.3 310.0 0.74 32 656 3678 -0.5 -12.5 40 12.0 -5.0 245 7 307.6 308.0 287.0 314.7 2.23 33 654 3703 -0.9 -8.9 55 8.0 -4.2 244 8 307.4 308.0 287.7 316.8 2.98 34 649 3764 -1.5 -7.5 64 6.0 -4.1 243 9 307.4 308.0 288.1 317.9 3.35 35 641 3862 -2.3 -7.1 70 4.8 -4.4 242 11 307.6 308.2 288.3 318.5 3.50 36 635 3937 -2.3 -12.3 46 10.0 -6.1 241 12 308.4 308.9 287.4 315.9 2.34 37 631 3987 -2.5 -14.5 39 12.0 -6.8 240 13 308.7 309.1 287.1 315.1 1.97 38 629 4012 -2.7 -11.7 50 9.0 -6.1 241 14 308.8 309.3 287.6 316.7 2.48 39 627 4037 -2.9 -12.9 46 10.0 -6.6 241 14 308.8 309.3 287.5 316.1 2.26 40 624 4075 -3.1 -10.1 58 7.0 -5.9 242 15 309.0 309.6 288.1 318.1 2.84 41 618 4152 -3.7 -11.7 54 8.0 -6.8 243 16 309.2 309.7 287.8 317.3 2.52 42 616 4177 -3.9 -8.9 68 5.0 -6.0 243 16 309.3 309.9 288.5 319.3 3.17 43 613 4216 -4.3 -8.7 71 4.4 -6.1 244 17 309.2 309.8 288.6 319.5 3.23 44 610 4254 -4.5 -12.5 54 8.0 -7.5 244 17 309.4 309.9 287.8 317.1 2.40 45 607 4293 -4.7 -12.7 54 8.0 -7.7 245 18 309.7 310.1 287.8 317.3 2.37 46 602 4358 -5.1 -10.1 68 5.0 -7.1 246 18 309.9 310.5 288.5 319.3 2.95 47 588 4542 -5.9 -15.9 45 10.0 -9.3 247 19 311.1 311.4 287.8 317.2 1.88 48 585 4582 -6.1 -16.1 45 10.0 -9.5 247 19 311.3 311.7 287.9 317.4 1.86 49 583 4609 -6.3 -15.3 49 9.0 -9.4 248 19 311.4 311.8 288.1 317.9 1.99 50 582 4623 -6.3 -18.3 38 12.0 -10.1 248 19 311.5 311.8 287.6 316.6 1.55 51 581 4636 -6.3 -16.3 45 10.0 -9.6 248 19 311.7 312.0 288.0 317.7 1.84 52 580 4649 -6.3 -17.3 41 11.0 -9.9 248 19 311.8 312.2 287.9 317.4 1.70 53 500 5790 -15.1 -18.8 73 3.7 -16.2 240 17 314.6 315.0 288.9 320.4 1.73 54 400 7440 -26.7 -44.7 17 18.0 -28.6 235 25 320.3 320.3 289.0 321.0 0.18 55 300 9460 -41.3 -56.3 18 15.0 -42.0 265 33 327.2 327.2 291.0 327.4 0.06 56 250 10670 -52.1 -54.9 72 2.8 -52.2 280 39 328.6 328.6 291.4 329.0 0.09 57 200 12070 -63.9 -68.3 55 4.4 -64.0 285 48 331.6 331.6 292.2 331.6 0.02 58 174 12916 -69.0 -72.7 58 3.7 -69.0 305 60 336.7 336.7 293.5 336.7 0.01 59 165 13233 -70.9 -74.4 60 3.5 -70.9 290 48 338.6 338.6 294.0 338.6 0.01 60 150 13810 -63.5 -83.5 5 20.0 -63.6 320 45 360.7 360.7 298.8 360.7 0.00 61 100 16300 -61.7 -86.7 2 25.0 -61.9 295 33 408.5 408.5 306.3 408.5 0.00 62 97 16488 -60.5 -86.5 2 26.0 -60.8 295 33 414.4 414.4 307.0 414.4 0.00 63 88 17090 -62.7 -87.7 2 25.0 -62.9 292 35 421.7 421.7 307.9 421.7 0.00 64 83 17450 -61.1 -87.1 2 26.0 -61.4 293 35 432.1 432.1 309.0 432.1 0.00 65 77 17913 -62.5 -88.5 2 26.0 -62.8 314 31 438.6 438.6 309.7 438.6 0.00 66 74 18158 -61.5 -88.5 2 27.0 -61.9 324 28 445.7 445.7 310.4 445.7 0.00 67 70 18500 -63.7 -88.7 2 25.0 -64.0 300 20 448.1 448.1 310.7 448.1 0.00 68 69 18588 -63.7 -88.7 2 25.0 -64.0 319 14 450.0 450.0 310.8 450.0 0.00 69 67 18770 -60.9 -87.9 2 27.0 -61.3 311 20 459.8 459.8 311.8 459.8 0.00 70 63 19154 -59.1 -87.1 1 28.0 -59.6 305 19 472.0 472.0 312.8 472.0 0.00 71 54 20113 -61.9 -88.9 2 27.0 -62.3 350 10 486.8 486.8 314.0 486.8 0.00 72 50 20590 -60.7 -88.7 1 28.0 -61.2 325 20 500.4 500.4 315.0 500.5 0.00 73 48 20846 -58.5 -87.5 1 29.0 -59.2 306 19 511.6 511.6 315.8 511.6 0.00 74 46 21113 -59.5 -87.5 1 28.0 -60.2 344 20 515.4 515.4 316.0 515.4 0.00 75 44 21393 -57.5 -87.5 1 30.0 -58.3 17 15 526.9 526.9 316.7 526.9 0.00 76 42 21687 -58.1 -87.1 1 29.0 -58.9 351 3 532.5 532.5 317.1 532.5 0.00 77 38 22320 -57.7 -87.7 1 30.0 -58.7 343 15 548.9 548.9 318.1 549.0 0.00 78 37 22489 -55.3 -86.3 1 31.0 -56.6 348 14 559.3 559.3 318.6 559.3 0.01 79 35 22844 -56.1 -87.1 1 31.0 -57.3 14 10 566.2 566.2 319.0 566.2 0.01 80 32 23416 -54.5 -86.5 1 32.0 -56.1 1 3 585.2 585.2 319.9 585.2 0.01 81 30 23830 -54.7 -86.7 1 32.0 -56.3 360 10 595.5 595.5 320.4 595.6 0.01 82 20 26440 -52.5 -85.5 1 33.0 -55.3 100 5 675.5 675.5 323.6 675.6 0.01 83 18 27125 -49.7 -84.7 1 35.0 -53.5 1 0 705.0 705.0 324.6 705.1 0.02 84 15 28313 -51.5 -85.5 1 34.0 -55.2 265 5 736.7 736.7 325.6 736.9 0.02 85 12 29780 -45.5 -83.5 1 38.0 -52.2 7 4 806.5 806.5 327.4 806.8 0.03 86 11 30360 -46.1 -83.1 1 37.0 -52.9 289 12 824.7 824.7 327.8 825.0 0.04 87 11 30360 -45.7 -83.7 1 38.0 -52.7 289 12 826.1 826.1 327.8 826.4 0.03 88 10 31000 -41.7 -81.7 1 40.0 -51.1 190 11 863.9 863.9 328.7 864.4 0.05 89 9.8 31137 -40.7 -81.7 0 41.0 -50.7 195 11 872.6 872.7 328.9 873.2 0.05 90 9.0 31715 -41.3 -82.3 0 41.0 -51.4 218 11 891.9 891.9 329.2 892.4 0.05 91 7.2 33237 -38.9 -80.9 0 42.0 -51.4 277 12 960.5 960.5 330.5 961.3 0.08 92 7.0 33430 -39.5 -80.5 0 41.0 -51.8 285 12 965.8 965.8 330.7 966.7 0.09 93 6.6 33832 -40.5 -81.5 0 41.0 -52.5 977.9 978.0 330.8 978.8 0.08 94 6.1 34373 -36.7 -78.7 0 42.0 -51.5 1016.6 1016.6 331.5 1018.2 0.13 TRP 165 13233 -70.9 -74.4 60 3.5 -70.9 290 48 338.6 338.6 294.0 338.6 0.01 WND 174 12916 -69.0 -72.7 58 3.7 -69.0 305 60 336.7 336.7 293.5 336.7 0.01 Sounding variables and indices 1000-500 mb thick: 5592.00 m Freezing level: 678.56 mb = 3408.40 m = 11182.28 ft Freezing level: 662.00 mb = 3605.55 m = 11829.07 ft Freezing level: 660.00 mb = 3629.74 m = 11908.47 ft Wetbulb zero: 788.95 mb = 2184.86 m = 7168.09 ft Precipitable water: 0.82 inches Sfc-500 mean rel hum: 48.23 % Est. max temperature: 24.47 C = 76.04 F Sfc-Lift cond lev (LCL): 965.38 mb = 496.44 m = 1628.72 ft T: 14.01 C 700-500 lapse rate: 6.27 C/km ThetaE index: 8.13 C Layer 949.0- 925.0 mb Conv cond level (CCL): 828.26 mb = 1784.58 m = 5854.85 ft Mean mixing ratio: 8.69 g/kg Conv temperature: 25.65 C = 78.18 F Cap Strength: 4.29 C Lifted Index: 3.51 C Risk: None Lifted Index @300 mb: 8.22 C Lifted Index @700 mb: 2.67 C Showalter Index: 4.63 C Risk: None Total Totals Index: 44.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.10 C Cross Totals Index: 19.10 C K Index: 9.10 Risk: None Sweat Index: 89.00 Risk: None Energy Index: 1.26 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 38.74 J/kg Max Up Vert Vel: 8.80 m/s Conv Inhibition (B-): 66254.21 J/kg Cap Strength: 4.29 C Lift Cond Lev (LCL): 908.34 mb = 1012.19 m = 3320.79 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 254 at 11 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 1013 98 140 5 -3.2 3.8 | 93 14 -14.1 0.6 1 1000 198 200 15 5.1 14.1 | 152 12 -5.7 10.9 2 987 305 210 20 10.0 17.3 | 177 14 -0.9 14.1 3 953 610 220 22 14.1 16.9 | 194 14 3.3 13.6 4 925 859 205 16 6.8 14.5 | 160 12 -4.1 11.3 5 919 914 210 17 8.5 14.7 | 168 12 -2.4 11.5 6 886 1219 210 13 6.5 11.3 | 152 9 -4.4 8.1 7 855 1524 200 13 4.4 12.2 | 145 11 -6.4 9.0 8 850 1570 205 12 5.1 10.9 | 143 10 -5.8 7.7 9 824 1829 205 17 7.2 15.4 | 163 13 -3.7 12.2 10 793 2134 205 15 6.3 13.6 | 157 11 -4.5 10.4 11 764 2438 195 9 2.3 8.7 | 123 10 -8.5 5.5 12 736 2743 180 11 0.0 11.0 | 126 13 -10.9 7.8 13 700 3159 220 13 8.4 10.0 | 160 7 -2.5 6.8 14 683 3353 220 13 8.4 10.0 | 160 7 -2.5 6.8 15 657 3658 245 7 6.3 3.0 | 87 5 -4.5 -0.2 16 632 3962 240 13 11.3 6.5 | 187 3 0.4 3.3 17 608 4267 245 18 16.3 7.6 | 231 7 5.5 4.4 18 562 4877 250 20 18.8 6.8 | 245 9 7.9 3.6 19 540 5182 225 16 11.3 11.3 | 183 8 0.5 8.1 20 500 5790 240 17 14.7 8.5 | 216 7 3.9 5.3 21 480 6096 250 20 18.8 6.8 | 245 9 7.9 3.6 22 424 7010 230 21 16.1 13.5 | 207 12 5.2 10.3 23 400 7440 235 25 20.5 14.3 | 221 15 9.6 11.1 24 390 7620 235 25 20.5 14.3 | 221 15 9.6 11.1 25 342 8534 260 21 20.7 3.6 | 267 10 9.8 0.4 26 314 9144 270 33 33.0 -0.0 | 278 22 22.1 -3.2 27 300 9449 275 32 31.9 -2.8 | 286 22 21.0 -6.0 28 300 9460 265 33 32.9 2.9 | 271 22 22.0 -0.3 29 250 10670 280 39 38.4 -6.8 | 290 29 27.6 -10.0 30 200 12070 285 48 46.4 -12.4 | 294 39 35.5 -15.6 31 174 12916 305 60 49.1 -34.4 | 314 54 38.3 -37.6 32 169 13106 305 60 49.1 -34.4 | 314 54 38.3 -37.6 33 165 13233 290 48 45.1 -16.4 | 300 39 34.3 -19.6 34 160 13411 285 51 49.3 -13.2 | 293 42 38.4 -16.4 35 150 13810 320 45 28.9 -34.5 | 334 42 18.1 -37.7 36 145 14021 315 50 35.4 -35.4 | 328 46 24.5 -38.6 37 138 14326 320 32 20.6 -24.5 | 341 29 9.7 -27.7 38 131 14630 275 27 26.9 -2.4 | 289 17 16.0 -5.6 39 119 15240 285 39 37.7 -10.1 | 296 30 26.8 -13.3 40 108 15850 300 33 28.6 -16.5 | 318 27 17.7 -19.7 41 102 16154 285 32 30.9 -8.3 | 300 23 20.1 -11.5 42 100 16300 295 33 29.9 -13.9 | 312 26 19.1 -17.2 43 97 16459 295 33 29.9 -13.9 | 312 26 19.1 -17.2 44 84 17374 290 36 33.8 -12.3 | 304 28 23.0 -15.5 45 72 18288 330 27 13.5 -23.4 | 354 27 2.6 -26.6 46 70 18500 300 20 17.3 -10.0 | 334 15 6.5 -13.2 47 69 18593 320 14 9.0 -10.7 | 8 14 -1.9 -13.9 48 66 18898 305 24 19.7 -13.8 | 333 19 8.8 -17.0 49 63 19202 305 18 14.7 -10.3 | 344 14 3.9 -13.5 50 57 19812 340 18 6.2 -16.9 | 13 21 -4.7 -20.1 51 54 20117 350 10 1.7 -9.8 | 35 16 -9.1 -13.1 52 51 20422 310 15 11.5 -9.6 | 357 13 0.6 -12.8 53 50 20590 325 20 11.5 -16.4 | 358 20 0.6 -19.6 54 49 20726 290 18 16.9 -6.2 | 327 11 6.1 -9.4 55 47 21031 330 21 10.5 -18.2 | 1 21 -0.4 -21.4 56 44 21336 20 19 -6.5 -17.9 | 39 27 -17.4 -21.1 57 42 21641 5 1 -0.1 -1.0 | 69 12 -10.9 -4.2 58 40 21946 285 10 9.7 -2.6 | 12 6 -1.2 -5.8 59 38 22250 340 16 5.5 -15.0 | 16 19 -5.4 -18.2 60 37 22555 350 13 2.3 -12.8 | 28 18 -8.6 -16.0 61 35 22860 15 10 -2.6 -9.7 | 46 19 -13.4 -12.9 62 32 23470 360 2 -0.0 -2.0 | 64 12 -10.9 -5.2 63 30 23830 360 10 -0.0 -10.0 | 39 17 -10.9 -13.2 64 28 24384 360 12 -0.0 -12.0 | 36 19 -10.9 -15.2 65 25 24994 35 13 -7.5 -10.6 | 53 23 -18.3 -13.9 66 24 25298 45 10 -7.1 -7.1 | 60 21 -17.9 -10.3 67 20 26440 100 5 -4.9 0.9 | 82 16 -15.8 -2.3 68 18 27127 0 0 -0.0 -0.0 | 74 11 -10.9 -3.2 69 17 27432 60 6 -5.2 -3.0 | 69 17 -16.0 -6.2 70 16 28042 275 1 1.0 -0.1 | 72 10 -9.9 -3.3 71 14 28651 255 10 9.7 2.6 | 63 1 -1.2 -0.6 72 14 28956 325 14 8.0 -11.5 | 11 15 -2.8 -14.7 73 12 29870 10 3 -0.5 -3.0 | 62 13 -11.4 -6.2 74 11 30175 320 12 7.7 -9.2 | 14 13 -3.1 -12.4 75 10 31000 190 11 1.9 10.8 | 130 12 -8.9 7.6 76 7 33430 285 12 11.6 -3.1 | 353 6 0.7 -6.3 Wind Parameters Mean winds (0-6000m): 223.5 at 15.1 knts Storm direction: 253.5 at 11.3 knts Shear (0-3000m) pos: 4.6 neg: 2.5 tot: 7.1 10-3/s Storm rel Dir Shear (0-3000m): 60.5 deg Storm rel helicity (0-3000m) pos: 98.3 neg: -51.3 tot: 47.1 m^2/s^2 ave: 15.7 10^-3 m/s^2 rel: 0.26 Storm rel vorticity (0-3000m) horiz: 10.0 stream: 2.6 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 12.83 Bulk Shear: 3.02 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 ------------------------------------------------------------------------------- 500 210 18 171 12| 22.2 0.0 22.2| 73.4 0.0 73.4 146.9 0.98| 24.4 24.0 1000 211 18 172 12| 11.1 4.1 15.2| 73.4 -24.5 49.0 49.0 0.49| 16.7 8.2 1500 210 16 165 11| 7.4 3.5 10.9| 73.7 -30.8 42.9 28.6 0.37| 12.7 4.7 2000 208 16 164 11| 5.6 2.1 7.6| 82.7 -33.7 49.0 24.5 0.37| 10.9 4.1 2500 207 15 159 11| 4.4 3.0 7.4| 83.4 -51.3 32.2 12.9 0.20| 10.3 2.0 3000 205 14 155 11| 4.6 2.5 7.1| 98.3 -51.3 47.1 15.7 0.26| 10.0 2.6 4000 211 14 156 9| 4.0 1.9 5.9|105.2 -57.3 47.8 12.0 0.23| 9.5 2.2 5000 220 15 170 8| 3.6 1.8 5.4|111.2 -70.3 40.9 8.2 0.17| 8.8 1.5 6000 224 15 177 8| 3.4 1.5 4.9|126.5 -74.7 51.8 8.6 0.21| 8.3 1.7 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20250425.12.gif