UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042212.upa.cvt Date: 1200Z 22 APR 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 22 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 1005 98 16.8 14.8 88 2.0 15.5 0 0 289.5 291.4 288.5 319.3 10.58 1 1003 113 18.0 14.6 81 3.4 15.8 340 1 290.9 292.8 288.9 320.5 10.47 2 1000 135 18.0 14.3 79 3.7 15.7 310 3 291.1 293.0 288.8 320.3 10.29 3 993 195 18.6 12.6 68 6.0 14.9 303 7 292.3 294.0 288.3 318.7 9.26 4 987 248 20.8 11.8 56 9.0 15.3 297 10 295.1 296.6 288.9 320.5 8.84 5 983 283 20.8 10.8 53 10.0 14.7 293 12 295.4 296.9 288.5 319.4 8.29 6 925 805 16.0 9.0 63 7.0 11.9 295 21 295.7 297.1 288.2 318.3 7.81 7 850 1516 9.6 6.8 83 2.8 8.0 285 25 296.2 297.5 287.9 317.5 7.31 8 833 1683 8.0 6.3 89 1.7 7.1 282 27 296.2 297.5 287.8 317.2 7.20 9 812 1894 6.8 4.3 84 2.5 5.5 278 29 297.1 298.3 287.4 316.0 6.42 10 809 1924 6.8 3.8 81 3.0 5.2 277 29 297.4 298.6 287.3 315.7 6.22 11 807 1944 6.8 2.7 75 4.1 4.6 276 29 297.7 298.7 286.9 314.7 5.76 12 804 1975 6.8 3.2 78 3.6 4.9 275 30 298.0 299.1 287.3 315.7 6.00 13 794 2078 6.8 1.8 70 5.0 4.2 272 31 299.0 300.0 287.2 315.4 5.49 14 780 2224 5.8 2.1 77 3.7 3.9 269 31 299.5 300.5 287.6 316.5 5.71 15 773 2298 5.8 -0.2 65 6.0 2.8 267 31 300.3 301.2 287.1 314.9 4.88 16 767 2361 5.6 -0.4 65 6.0 2.6 266 31 300.7 301.6 287.2 315.3 4.84 17 766 2372 5.6 -1.4 61 7.0 2.2 266 30 300.8 301.7 286.9 314.4 4.51 18 764 2394 6.2 -13.8 22 20.0 -1.2 266 30 301.7 302.0 284.2 307.1 1.72 19 763 2404 6.4 -15.6 19 22.0 -1.4 266 30 302.0 302.3 284.1 306.8 1.49 20 755 2491 6.6 -18.4 15 25.0 -1.9 262 30 303.2 303.4 284.2 307.0 1.19 21 736 2700 5.4 -17.6 17 23.0 -2.5 248 30 304.1 304.3 284.7 308.3 1.30 22 732 2744 5.0 -14.0 24 19.0 -2.0 245 30 304.1 304.4 285.2 309.7 1.77 23 719 2890 4.0 -16.0 22 20.0 -3.0 249 30 304.6 304.9 285.1 309.5 1.52 24 714 2947 4.2 -29.8 6 34.0 -4.7 251 30 305.4 305.5 284.2 306.9 0.45 25 707 3027 3.8 -18.2 18 22.0 -3.6 253 30 305.8 306.1 285.3 310.0 1.29 26 700 3108 3.2 -25.8 10 29.0 -5.0 255 30 306.0 306.2 284.7 308.3 0.67 27 694 3178 2.8 -28.2 8 31.0 -5.4 258 31 306.3 306.4 284.6 308.2 0.54 28 684 3295 2.0 -25.0 11 27.0 -5.7 262 32 306.7 306.9 285.0 309.2 0.73 29 681 3330 2.4 -29.6 7 32.0 -5.9 264 33 307.6 307.6 285.0 309.2 0.48 30 666 3510 2.0 -35.0 4 37.0 -6.5 263 34 309.1 309.1 285.4 310.1 0.29 31 637 3867 -0.5 -34.5 6 34.0 -8.2 257 39 310.2 310.2 285.8 311.3 0.32 32 562 4850 -9.5 -34.5 11 25.0 -14.4 265 38 310.9 311.0 286.1 312.2 0.36 33 554 4961 -7.7 -49.7 2 42.0 -13.8 265 38 314.3 314.3 286.9 314.6 0.07 34 500 5750 -12.9 -50.9 3 38.0 -17.7 260 42 317.3 317.3 287.9 317.6 0.07 35 455 6461 -17.3 -48.3 5 31.0 -21.1 259 41 320.5 320.5 289.0 320.9 0.11 36 424 6984 -21.7 -50.7 5 29.0 -24.7 265 42 321.4 321.4 289.3 321.7 0.09 37 404 7338 -23.7 -51.7 6 28.0 -26.4 261 42 323.3 323.3 289.9 323.6 0.08 38 400 7410 -24.3 -52.3 6 28.0 -26.9 260 42 323.4 323.4 289.9 323.7 0.08 39 375 7878 -28.5 -54.5 6 26.0 -30.4 252 41 323.9 323.9 290.0 324.1 0.06 40 374 7897 -28.7 -51.7 9 23.0 -30.6 252 41 323.9 323.9 290.0 324.2 0.09 41 371 7955 -29.3 -40.3 34 11.0 -30.6 251 41 323.8 323.9 290.3 324.9 0.31 42 363 8110 -30.5 -42.5 30 12.0 -31.7 250 41 324.2 324.3 290.3 325.2 0.25 43 362 8130 -30.9 -44.9 24 14.0 -32.2 250 41 323.9 324.0 290.2 324.7 0.19 44 361 8150 -30.9 -43.9 27 13.0 -32.2 249 41 324.2 324.2 290.3 325.0 0.22 45 360 8170 -31.3 -46.3 21 15.0 -32.6 249 41 323.9 324.0 290.2 324.6 0.17 46 357 8229 -31.9 -43.9 29 12.0 -33.0 249 41 323.9 323.9 290.2 324.7 0.22 47 356 8249 -31.9 -34.2 80 2.3 -32.2 248 41 324.2 324.3 290.6 326.3 0.59 48 355 8269 -31.9 -33.4 86 1.5 -32.1 248 41 324.4 324.5 290.8 326.7 0.64 49 353 8309 -32.1 -34.7 78 2.6 -32.4 248 41 324.7 324.8 290.8 326.7 0.57 50 344 8491 -33.5 -34.6 90 1.1 -33.6 246 40 325.2 325.3 290.9 327.3 0.59 51 336 8656 -34.7 -35.7 91 1.0 -34.8 245 42 325.7 325.8 291.0 327.7 0.54 52 334 8698 -35.1 -36.4 88 1.3 -35.3 245 43 325.7 325.8 291.0 327.6 0.51 53 333 8719 -35.1 -37.2 81 2.1 -35.3 245 44 326.0 326.1 291.1 327.8 0.47 54 332 8740 -34.9 -39.6 62 4.7 -35.4 245 44 326.6 326.7 291.2 328.0 0.37 55 330 8782 -35.3 -38.3 74 3.0 -35.6 245 45 326.6 326.7 291.2 328.2 0.42 56 300 9440 -40.9 -43.8 73 2.9 -41.1 250 54 327.7 327.8 291.3 328.7 0.26 57 250 10650 -49.9 -55.9 49 6.0 -50.1 265 63 331.9 331.9 292.3 332.2 0.08 58 242 10862 -51.7 -57.9 48 6.1 -51.9 265 64 332.3 332.3 292.4 332.5 0.06 59 200 12070 -62.3 -69.3 39 7.0 -62.4 255 56 334.1 334.1 292.9 334.2 0.02 60 168 13130 -69.3 -73.7 53 4.4 -69.3 230 58 339.5 339.5 294.2 339.6 0.01 61 150 13810 -68.1 -83.1 10 15.0 -68.2 245 52 352.8 352.8 297.3 352.8 0.00 62 100 16290 -63.9 -86.9 3 23.0 -64.1 265 39 404.3 404.3 305.7 404.3 0.00 63 85 17295 -61.1 -87.1 2 26.0 -61.4 279 13 429.2 429.2 308.7 429.2 0.00 64 76 17986 -64.1 -88.1 2 24.0 -64.3 230 10 436.9 436.9 309.6 436.9 0.00 65 70 18490 -64.7 -88.7 2 24.0 -64.9 225 5 446.0 446.0 310.5 446.0 0.00 66 65 18940 -65.5 -89.5 2 24.0 -65.7 244 7 453.8 453.8 311.2 453.8 0.00 67 62 19227 -64.7 -88.7 2 24.0 -65.0 254 12 461.7 461.7 311.9 461.7 0.00 68 60 19429 -61.3 -88.3 2 27.0 -61.7 281 15 473.7 473.7 313.0 473.7 0.00 69 57 19747 -60.5 -87.5 2 27.0 -61.0 355 13 482.5 482.5 313.7 482.5 0.00 70 56 19856 -61.7 -87.7 2 26.0 -62.1 8 10 482.2 482.2 313.6 482.2 0.00 71 50 20560 -59.5 -87.5 1 28.0 -60.1 35 10 503.3 503.3 315.2 503.3 0.00 72 46 21084 -58.3 -87.3 1 29.0 -59.0 78 12 518.3 518.3 316.2 518.3 0.00 73 43 21508 -59.1 -87.1 1 28.0 -59.8 141 9 526.4 526.4 316.7 526.5 0.00 74 40 21964 -57.5 -86.5 1 29.0 -58.5 135 11 541.5 541.5 317.6 541.5 0.01 75 33 23177 -58.7 -86.7 2 28.0 -59.7 1 0 568.9 568.9 319.1 568.9 0.01 76 30 23780 -55.9 -85.9 1 30.0 -57.3 35 3 592.2 592.3 320.3 592.3 0.01 77 28 24220 -54.3 -85.3 1 31.0 -56.1 28 5 608.5 608.5 321.0 608.6 0.01 78 23 25473 -56.3 -86.3 1 30.0 -58.0 76 14 637.8 637.8 322.2 637.9 0.01 79 20 26370 -51.5 -84.5 1 33.0 -54.5 85 11 678.5 678.5 323.7 678.7 0.02 80 19 26704 -50.9 -83.9 1 33.0 -54.2 100 7 690.4 690.4 324.1 690.6 0.02 81 17 27427 -52.1 -84.1 1 32.0 -55.4 135 14 708.9 708.9 324.7 709.1 0.02 82 14 28694 -49.3 -83.3 1 34.0 -54.0 325 7 758.9 758.9 326.2 759.1 0.03 83 12 29714 -45.5 -81.5 1 36.0 -52.2 138 16 806.5 806.6 327.4 806.9 0.04 84 11 30294 -46.1 -82.1 1 36.0 -52.9 119 4 824.7 824.7 327.8 825.1 0.04 85 10 30930 -44.9 -80.9 1 36.0 -52.7 90 4 851.9 852.0 328.4 852.5 0.06 86 9.9 30997 -45.1 -81.1 1 36.0 -52.8 85 4 853.6 853.7 328.5 854.2 0.06 87 9.1 31564 -41.9 -79.9 1 38.0 -51.5 44 6 886.7 886.8 329.2 887.5 0.07 88 8.9 31715 -42.3 -80.3 1 38.0 -51.8 33 6 890.8 890.9 329.2 891.6 0.07 89 7.8 32611 -39.9 -79.9 1 40.0 -51.4 328 8 934.7 934.8 330.1 935.7 0.09 90 7.1 33253 -40.5 -79.5 1 39.0 -52.1 282 10 957.7 957.8 330.5 958.9 0.10 91 7.0 33350 -39.7 -79.7 1 40.0 -51.9 275 10 964.9 965.0 330.6 966.1 0.10 92 6.4 33965 -37.9 -78.9 1 41.0 -51.7 997.6 997.7 331.2 999.1 0.12 93 6.1 34296 -38.1 -79.1 1 41.0 -52.0 1010.5 1010.6 331.4 1012.0 0.13 TRP 168 13130 -69.3 -73.7 53 4.4 -69.3 230 58 339.5 339.5 294.2 339.6 0.01 WND 242 10862 -51.7 -57.9 48 6.1 -51.9 265 64 332.3 332.3 292.4 332.5 0.06 Sounding variables and indices 1000-500 mb thick: 5615.00 m Freezing level: 642.80 mb = 3795.14 m = 12451.08 ft Wetbulb zero: 764.71 mb = 2385.89 m = 7827.63 ft Precipitable water: 0.78 inches Sfc-500 mean rel hum: 32.92 % Est. max temperature: 23.44 C = 74.20 F Sfc-Lift cond lev (LCL): 975.65 mb = 347.20 m = 1139.08 ft T: 20.21 C 700-500 lapse rate: 6.09 C/km ThetaE index: 8.52 C Layer 766.0- 755.0 mb Conv cond level (CCL): 837.32 mb = 1640.47 m = 5382.06 ft Mean mixing ratio: 8.29 g/kg Conv temperature: 23.50 C = 74.30 F Cap Strength: 4.32 C Lifted Index: 4.07 C Risk: None Lifted Index @300 mb: 6.69 C Lifted Index @700 mb: 3.24 C Showalter Index: 4.89 C Risk: None Total Totals Index: 42.20 C Risk: None Vertical Totals Index: 22.50 C Cross Totals Index: 19.70 C K Index: 0.30 Risk: None Sweat Index: 173.60 Risk: None Energy Index: 0.14 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 14.11 J/kg Max Up Vert Vel: 5.31 m/s Conv Inhibition (B-): 52370.77 J/kg Cap Strength: 4.28 C Lift Cond Lev (LCL): 852.75 mb = 1488.87 m = 4884.69 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 296 at 24 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 1005 98 0 0 -0.0 -0.0 | 116 24 -21.1 10.4 1 1000 135 310 3 2.3 -1.9 | 114 21 -18.8 8.5 2 980 305 290 13 12.2 -4.4 | 124 11 -8.9 6.0 3 946 610 295 20 18.1 -8.5 | 124 4 -3.0 2.0 4 925 805 295 21 19.0 -8.9 | 127 3 -2.0 1.6 5 913 914 295 21 19.0 -8.9 | 127 3 -2.0 1.6 6 881 1219 295 22 19.9 -9.3 | 135 2 -1.1 1.1 7 850 1516 285 25 24.1 -6.5 | 218 5 3.1 4.0 8 818 1829 280 28 27.6 -4.9 | 229 9 6.5 5.6 9 788 2134 270 32 32.0 -0.0 | 226 15 10.9 10.4 10 760 2438 265 30 29.9 2.6 | 214 16 8.8 13.1 11 732 2743 245 30 27.2 12.7 | 195 24 6.1 23.1 12 700 3108 255 30 29.0 7.8 | 203 20 7.9 18.2 13 679 3353 265 33 32.9 2.9 | 222 18 11.8 13.3 14 653 3658 260 36 35.5 6.3 | 221 22 14.4 16.7 15 628 3962 255 40 38.6 10.4 | 220 27 17.6 20.8 16 604 4267 265 36 35.9 3.1 | 227 20 14.8 13.6 17 559 4877 265 38 37.9 3.3 | 231 22 16.8 13.8 18 500 5750 260 42 41.4 7.3 | 229 27 20.3 17.7 19 477 6096 255 41 39.6 10.6 | 221 28 18.5 21.1 20 422 7010 265 42 41.8 3.7 | 236 25 20.8 14.1 21 400 7410 260 42 41.4 7.3 | 229 27 20.3 17.7 22 388 7620 255 42 40.6 10.9 | 222 29 19.5 21.3 23 341 8534 245 40 36.3 16.9 | 209 31 15.2 27.3 24 313 9144 245 53 48.0 22.4 | 219 42 27.0 32.8 25 300 9440 250 54 50.7 18.5 | 226 41 29.7 28.9 26 250 10650 265 63 62.8 5.5 | 249 45 41.7 15.9 27 242 10862 265 64 63.8 5.6 | 249 46 42.7 16.0 28 238 10973 265 64 63.8 5.6 | 249 46 42.7 16.0 29 206 11887 265 60 59.8 5.2 | 248 42 38.7 15.7 30 200 12070 255 56 54.1 14.5 | 233 41 33.0 24.9 31 177 12802 240 44 38.1 22.0 | 208 37 17.0 32.4 32 169 13106 230 59 45.2 37.9 | 207 54 24.1 48.4 33 168 13130 230 58 44.4 37.3 | 206 53 23.4 47.7 34 150 13810 245 52 47.1 22.0 | 219 42 26.1 32.4 35 138 14326 255 53 51.2 13.7 | 231 39 30.1 24.2 36 131 14630 265 43 42.8 3.7 | 237 26 21.8 14.2 37 119 15240 270 38 38.0 -0.0 | 238 20 16.9 10.4 38 113 15545 245 32 29.0 13.5 | 198 25 7.9 24.0 39 102 16154 260 29 28.6 5.0 | 206 17 7.5 15.5 40 100 16290 265 39 38.9 3.4 | 232 23 17.8 13.8 41 97 16459 260 39 38.4 6.8 | 225 24 17.3 17.2 42 93 16764 285 26 25.1 -6.7 | 227 5 4.0 3.7 43 88 17069 290 17 16.0 -5.8 | 132 7 -5.1 4.6 44 84 17374 275 12 12.0 -1.0 | 136 13 -9.1 9.4 45 76 17983 230 10 7.7 6.4 | 142 22 -13.4 16.9 46 72 18288 275 10 10.0 -0.9 | 131 15 -11.1 9.6 47 70 18490 225 5 3.5 3.5 | 129 22 -17.5 14.0 48 69 18593 235 1 0.8 0.6 | 119 23 -20.3 11.0 49 62 19202 250 11 10.3 3.8 | 143 18 -10.7 14.2 50 59 19507 290 16 15.0 -5.5 | 129 8 -6.0 5.0 51 56 19812 10 12 -2.1 -11.8 | 87 23 -23.2 -1.4 52 54 20117 0 0 -0.0 -0.0 | 116 24 -21.1 10.4 53 50 20560 35 10 -5.7 -8.2 | 95 27 -26.8 2.2 54 46 21031 70 13 -12.2 -4.4 | 100 34 -33.3 6.0 55 44 21336 115 6 -5.4 2.5 | 116 30 -26.5 13.0 56 42 21641 160 11 -3.8 10.3 | 130 32 -24.8 20.8 57 36 22555 90 10 -10.0 0.0 | 109 33 -31.1 10.4 58 33 23165 0 0 -0.0 -0.0 | 116 24 -21.1 10.4 59 30 23780 35 3 -1.7 -2.5 | 109 24 -22.8 8.0 60 27 24384 25 6 -2.5 -5.4 | 102 24 -23.6 5.0 61 26 24689 25 10 -4.2 -9.1 | 93 25 -25.3 1.4 62 25 24994 80 12 -11.8 -2.1 | 104 34 -32.9 8.4 63 23 25603 75 15 -14.5 -3.9 | 100 36 -35.6 6.6 64 22 25908 125 10 -8.2 5.7 | 119 33 -29.3 16.2 65 20 26370 85 11 -11.0 -1.0 | 106 33 -32.0 9.5 66 20 26518 125 3 -2.5 1.7 | 117 26 -23.5 12.2 67 19 26822 85 10 -10.0 -0.9 | 107 32 -31.0 9.6 68 18 27127 85 10 -10.0 -0.9 | 107 32 -31.0 9.6 69 17 27432 135 14 -9.9 9.9 | 123 37 -31.0 20.3 70 16 27737 145 11 -6.3 9.0 | 125 34 -27.4 19.4 71 16 28042 95 10 -10.0 0.9 | 110 33 -31.0 11.3 72 15 28346 175 10 -0.9 10.0 | 133 30 -21.9 20.4 73 14 28651 310 6 4.6 -3.9 | 112 18 -16.5 6.6 74 13 28956 20 10 -3.4 -9.4 | 92 25 -24.5 1.0 75 13 29261 80 22 -21.7 -3.8 | 99 43 -42.7 6.6 76 12 29566 100 23 -22.7 4.0 | 108 46 -43.7 14.4 77 12 29870 170 10 -1.7 9.8 | 132 31 -22.8 20.3 78 11 30175 125 4 -3.3 2.3 | 118 27 -24.4 12.7 79 10 30930 90 4 -4.0 0.0 | 113 27 -25.1 10.4 80 7 33350 275 10 10.0 -0.9 | 131 15 -11.1 9.6 Wind Parameters Mean winds (0-6000m): 266.3 at 31.4 knts Storm direction: 296.3 at 23.5 knts Shear (0-3000m) pos: 0.3 neg: 4.9 tot: 5.2 10-3/s Storm rel Dir Shear (0-3000m): 86.9 deg Storm rel helicity (0-3000m) pos: 28.4 neg: -51.4 tot: -23.0 m^2/s^2 ave: -7.7 10^-3 m/s^2 rel: -0.01 Storm rel vorticity (0-3000m) horiz: 9.4 stream: -0.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.24 Bulk Shear: 59.12 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 ------------------------------------------------------------------------------- 500 293 12 120 11| 0.0 20.3 20.3| 8.6 -4.6 4.0 8.0 0.08| 20.7 1.7 1000 294 17 121 7| 1.0 10.2 11.1| 8.8 -4.6 4.2 4.2 0.09| 11.3 1.0 1500 293 19 131 5| 0.6 8.2 8.9| 11.4 -4.6 6.8 4.5 0.20| 9.8 2.0 2000 288 21 169 4| 0.5 7.7 8.2| 12.9 -6.3 6.7 3.3 0.16| 9.5 1.5 2500 282 23 196 6| 0.4 5.9 6.3| 12.9 -36.3 -23.4 -9.4 -0.02| 9.5 -0.2 3000 275 24 201 9| 0.3 4.9 5.2| 28.4 -51.4 -23.0 -7.7 -0.01| 9.4 -0.1 4000 270 27 210 12| 1.1 4.1 5.1| 67.3 -53.9 13.5 3.4 0.09| 9.3 0.8 5000 268 29 216 14| 1.0 3.5 4.5| 82.8 -54.6 28.2 5.6 0.11| 8.2 0.9 6000 266 31 219 16| 0.9 3.2 4.0| 82.8 -84.9 -2.1 -0.3 0.05| 7.5 0.4 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20250422.12.gif