UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042300.upa.cvt Date: 0000Z 23 APR 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 23 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 1006 98 23.6 5.6 31 18.0 13.4 350 5 296.2 297.3 286.4 312.9 5.67 1 1000 141 23.0 5.0 31 18.0 13.0 15 7 296.1 297.1 286.1 312.2 5.47 2 925 812 17.0 2.0 36 15.0 9.2 320 17 296.7 297.6 285.6 310.8 4.78 3 906 988 15.4 1.4 39 14.0 8.2 310 18 296.8 297.7 285.5 310.6 4.67 4 875 1282 13.6 1.6 44 12.0 7.3 290 19 297.9 298.8 286.2 312.5 4.91 5 871 1321 13.4 0.4 41 13.0 6.8 287 19 298.1 298.9 285.9 311.6 4.52 6 865 1379 13.8 -8.2 21 22.0 4.4 282 20 299.1 299.5 284.0 306.4 2.38 7 859 1438 13.4 -6.6 24 20.0 4.5 277 20 299.3 299.8 284.4 307.6 2.71 8 856 1467 13.0 -2.0 35 15.0 5.7 275 20 299.2 299.9 285.6 310.8 3.85 9 850 1526 13.0 -3.0 33 16.0 5.4 270 20 299.8 300.4 285.5 310.7 3.60 10 835 1675 12.0 -7.0 26 19.0 3.7 258 20 300.2 300.7 284.8 308.6 2.70 11 831 1715 11.6 -6.4 28 18.0 3.6 255 20 300.2 300.8 284.9 309.0 2.85 12 823 1796 10.8 -0.2 46 11.0 5.2 248 20 300.2 301.1 286.7 314.0 4.58 13 818 1847 10.2 0.2 50 10.0 5.1 245 20 300.1 301.0 286.9 314.3 4.74 14 816 1867 10.0 0.0 50 10.0 4.9 245 20 300.1 301.0 286.8 314.2 4.69 15 797 2062 8.0 3.0 71 5.0 5.4 245 20 300.0 301.1 288.0 317.7 5.96 16 792 2114 7.6 2.6 71 5.0 4.9 245 20 300.1 301.2 287.9 317.5 5.83 17 784 2198 7.0 -1.0 57 8.0 3.1 247 20 300.3 301.2 286.7 314.0 4.53 18 778 2261 6.4 -0.6 61 7.0 2.9 249 20 300.4 301.2 286.9 314.5 4.71 19 776 2282 6.4 -6.6 39 13.0 0.8 250 20 300.6 301.1 285.2 309.8 3.00 20 775 2292 6.4 -5.6 42 12.0 1.1 250 20 300.7 301.3 285.5 310.6 3.25 21 771 2335 6.0 -6.0 42 12.0 0.7 251 19 300.7 301.3 285.4 310.4 3.16 22 766 2388 5.8 -15.2 20 21.0 -1.7 253 19 301.0 301.3 283.7 305.9 1.53 23 761 2442 5.4 -18.6 16 24.0 -2.5 255 19 301.2 301.4 283.4 304.9 1.16 24 759 2463 5.6 -21.4 12 27.0 -2.8 255 19 301.6 301.8 283.2 304.6 0.91 25 754 2517 5.6 -25.4 9 31.0 -3.2 256 18 302.2 302.3 283.1 304.3 0.64 26 732 2759 4.2 -31.8 5 36.0 -4.7 261 16 303.2 303.3 283.2 304.5 0.36 27 720 2893 3.6 -31.4 6 35.0 -5.0 274 13 304.0 304.1 283.5 305.3 0.38 28 700 3121 1.8 -31.2 7 33.0 -6.2 285 10 304.5 304.6 283.7 305.9 0.40 29 596 4396 -6.5 -39.5 5 33.0 -12.5 275 21 309.2 309.2 285.3 309.9 0.21 30 581 4595 -6.9 -41.9 4 35.0 -12.9 275 22 311.0 311.0 285.9 311.6 0.17 31 552 4993 -8.5 -44.5 4 36.0 -14.2 257 18 313.7 313.7 286.8 314.2 0.13 32 503 5705 -14.5 -33.5 18 19.0 -18.1 257 16 314.8 314.9 287.6 316.4 0.45 33 500 5750 -14.9 -30.9 24 16.0 -18.1 255 16 314.9 315.0 287.7 316.9 0.58 34 498 5780 -15.3 -29.3 29 14.0 -18.3 259 14 314.7 314.9 287.8 317.1 0.68 35 490 5902 -16.3 -28.3 35 12.0 -18.8 258 14 315.0 315.1 287.9 317.6 0.76 36 481 6041 -17.7 -32.7 26 15.0 -20.4 256 16 314.9 315.0 287.6 316.7 0.51 37 470 6214 -19.3 -29.3 41 10.0 -21.2 257 17 315.0 315.2 287.9 317.5 0.72 38 469 6230 -19.5 -28.5 45 9.0 -21.3 257 17 315.0 315.1 288.0 317.7 0.78 39 467 6262 -19.7 -22.6 78 2.9 -20.4 258 18 315.1 315.4 288.6 319.6 1.33 40 464 6309 -19.7 -23.7 70 4.0 -20.7 258 18 315.7 315.9 288.7 319.8 1.22 41 461 6358 -19.5 -26.5 54 7.0 -21.0 259 18 316.5 316.7 288.7 319.8 0.95 42 445 6619 -21.7 -25.8 69 4.1 -22.6 270 24 317.0 317.2 288.9 320.6 1.05 43 440 6702 -20.7 -23.9 75 3.2 -21.5 274 26 319.3 319.5 289.9 323.6 1.26 44 422 7010 -22.9 -24.7 85 1.8 -23.3 255 30 320.3 320.5 290.1 324.5 1.22 45 410 7220 -24.3 -26.7 80 2.4 -24.8 241 34 321.1 321.3 290.2 324.8 1.05 46 400 7400 -25.5 -27.4 84 1.9 -25.9 240 41 321.8 322.0 290.4 325.4 1.01 47 377 7826 -28.7 -29.4 94 0.7 -28.8 238 43 323.1 323.3 290.6 326.3 0.89 48 376 7845 -28.9 -30.4 87 1.5 -29.2 239 43 323.1 323.3 290.6 326.0 0.81 49 370 7960 -29.7 -31.4 85 1.7 -30.0 240 44 323.5 323.7 290.6 326.2 0.75 50 361 8135 -31.1 -31.7 94 0.6 -31.2 243 46 323.9 324.1 290.7 326.6 0.75 51 360 8154 -31.3 -32.8 87 1.5 -31.5 244 46 323.9 324.1 290.7 326.3 0.67 52 358 8194 -31.5 -32.6 90 1.1 -31.7 244 47 324.2 324.3 290.7 326.7 0.69 53 355 8253 -31.7 -33.4 85 1.7 -31.9 245 47 324.7 324.8 290.9 327.0 0.64 54 353 8293 -32.1 -33.4 88 1.3 -32.3 246 47 324.7 324.8 290.9 327.0 0.65 55 344 8475 -33.1 -35.4 80 2.3 -33.4 249 49 325.7 325.8 291.0 327.7 0.55 56 300 9420 -41.1 -47.1 52 6.0 -41.5 245 53 327.4 327.5 291.2 328.1 0.18 57 250 10630 -51.7 -60.7 33 9.0 -51.9 250 48 329.2 329.2 291.5 329.4 0.04 58 200 12040 -63.3 -67.2 59 3.9 -63.3 240 63 332.5 332.5 292.4 332.6 0.02 59 175 12853 -68.6 -72.1 61 3.5 -68.7 245 71 336.7 336.7 293.5 336.8 0.01 60 166 13169 -70.7 -74.0 62 3.3 -70.7 240 60 338.4 338.4 293.9 338.4 0.01 61 150 13780 -64.9 -82.9 7 18.0 -65.0 260 48 358.3 358.3 298.4 358.3 0.00 62 100 16270 -59.9 -86.9 2 27.0 -60.2 255 38 412.0 412.0 306.7 412.0 0.00 63 77 17892 -63.9 -87.9 2 24.0 -64.1 240 23 435.6 435.6 309.4 435.7 0.00 64 73 18221 -62.3 -88.3 2 26.0 -62.6 251 22 445.7 445.7 310.4 445.7 0.00 65 70 18480 -63.1 -89.1 2 26.0 -63.4 240 20 449.4 449.4 310.8 449.4 0.00 66 66 18841 -63.3 -89.3 2 26.0 -63.6 248 19 456.6 456.6 311.5 456.6 0.00 67 65 18935 -61.9 -88.9 2 27.0 -62.3 252 18 461.6 461.6 311.9 461.7 0.00 68 64 19031 -62.7 -88.7 2 26.0 -63.0 257 15 461.9 461.9 312.0 461.9 0.00 69 63 19128 -60.9 -87.9 2 27.0 -61.3 262 12 468.0 468.0 312.5 468.0 0.00 70 63 19128 -60.1 -88.1 1 28.0 -60.6 262 12 469.8 469.8 312.6 469.8 0.00 71 60 19431 -61.7 -88.7 2 27.0 -62.1 211 10 472.8 472.8 312.8 472.8 0.00 72 57 19750 -59.1 -88.1 1 29.0 -59.7 252 16 485.7 485.7 313.9 485.7 0.00 73 50 20570 -58.9 -87.9 1 29.0 -59.6 255 12 504.7 504.7 315.3 504.7 0.00 74 49 20697 -58.9 -87.9 1 29.0 -59.6 247 10 507.6 507.6 315.5 507.6 0.00 75 46 21095 -56.9 -86.9 1 30.0 -57.8 255 11 521.7 521.7 316.4 521.7 0.00 76 42 21669 -58.5 -87.5 1 29.0 -59.3 182 2 531.5 531.5 317.0 531.5 0.00 77 31 23591 -55.3 -86.3 1 31.0 -56.8 81 3 588.3 588.3 320.0 588.4 0.01 78 30 23800 -55.9 -86.9 1 31.0 -57.3 70 3 592.2 592.2 320.3 592.3 0.01 79 29 24016 -55.9 -86.9 1 31.0 -57.4 66 4 598.0 598.0 320.5 598.1 0.01 80 27 24474 -53.1 -86.1 1 33.0 -55.2 62 6 618.2 618.2 321.4 618.3 0.01 81 22 25788 -55.5 -86.5 1 31.0 -57.5 100 14 648.4 648.4 322.6 648.4 0.01 82 20 26400 -53.1 -86.1 1 33.0 -55.8 125 6 673.6 673.6 323.6 673.7 0.01 83 18 27083 -51.7 -85.7 1 34.0 -54.9 118 5 698.7 698.7 324.4 698.8 0.01 84 16 27855 -48.3 -83.3 1 35.0 -52.9 90 9 733.7 733.7 325.5 733.9 0.02 85 15 28281 -48.7 -84.7 1 36.0 -53.4 106 11 746.0 746.0 325.8 746.2 0.02 86 14 28739 -45.3 -82.3 1 37.0 -51.5 175 12 772.4 772.4 326.5 772.7 0.03 87 12 29764 -47.9 -83.9 1 36.0 -53.7 26 15 798.0 798.0 327.2 798.3 0.03 88 10 30980 -43.9 -82.9 1 39.0 -52.1 265 6 855.7 855.7 328.5 856.1 0.04 89 9.4 31396 -43.7 -82.7 1 39.0 -52.3 266 6 871.7 871.7 328.8 872.2 0.05 90 8.9 31766 -41.1 -82.1 0 41.0 -51.4 267 6 895.5 895.5 329.4 896.0 0.05 91 7.9 32579 -39.9 -80.9 0 41.0 -51.4 268 5 931.3 931.4 330.0 932.1 0.07 92 7.8 32666 -39.9 -80.9 0 41.0 -51.4 268 5 934.7 934.8 330.1 935.5 0.07 93 7.6 32843 -40.3 -81.3 0 41.0 -51.7 269 5 940.1 940.1 330.2 940.8 0.07 94 7.4 33026 -38.1 -80.1 0 42.0 -51.0 269 5 956.2 956.3 330.5 957.2 0.09 95 7.0 33410 -37.1 -79.1 0 42.0 -50.9 270 5 975.7 975.7 330.8 976.9 0.11 96 6.5 33924 -35.3 -78.3 0 43.0 -50.6 1004.2 1004.3 331.2 1005.8 0.13 TRP 166 13169 -70.7 -74.0 62 3.3 -70.7 240 60 338.4 338.4 293.9 338.4 0.01 WND 175 12853 -68.6 -72.1 61 3.5 -68.7 245 71 336.7 336.7 293.5 336.8 0.01 Sounding variables and indices 1000-500 mb thick: 5609.00 m Freezing level: 677.45 mb = 3397.50 m = 11146.52 ft Wetbulb zero: 769.50 mb = 2350.76 m = 7712.36 ft Precipitable water: 0.54 inches Sfc-500 mean rel hum: 20.07 % Est. max temperature: 26.52 C = 79.74 F Sfc-Lift cond lev (LCL): 770.50 mb = 2340.12 m = 7677.46 ft T: 5.98 C 700-500 lapse rate: 6.35 C/km ThetaE index: 6.07 C Layer 871.0- 859.0 mb Conv cond level (CCL): 649.42 mb = 3715.51 m = 12189.84 ft Mean mixing ratio: 5.07 g/kg Conv temperature: 34.07 C = 93.33 F Cap Strength: 7.30 C Lifted Index: 6.53 C Risk: None Lifted Index @300 mb: 11.61 C Lifted Index @700 mb: 5.24 C Showalter Index: 6.99 C Risk: None Total Totals Index: 39.80 C Risk: None Vertical Totals Index: 27.90 C Cross Totals Index: 11.90 C K Index: -8.10 Risk: None Sweat Index: 56.00 Risk: None Energy Index: 1.35 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.63 J/kg Max Up Vert Vel: 1.81 m/s Conv Inhibition (B-): 63631.30 J/kg Cap Strength: 7.27 C Lift Cond Lev (LCL): 749.76 mb = 2563.17 m = 8409.25 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 303 at 13 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 1006 98 350 5 0.9 -4.9 | 101 10 -9.8 2.0 1 1000 141 15 7 -1.8 -6.8 | 91 12 -12.4 0.1 2 981 305 350 10 1.7 -9.8 | 72 9 -8.9 -3.0 3 947 610 330 15 7.5 -13.0 | 27 7 -3.1 -6.1 4 925 812 320 17 10.9 -13.0 | 357 6 0.3 -6.1 5 914 914 315 18 12.7 -12.7 | 340 6 2.1 -5.8 6 881 1219 295 18 16.3 -7.6 | 277 6 5.7 -0.7 7 850 1524 270 21 21.0 -0.0 | 236 12 10.4 6.9 8 850 1526 270 20 20.0 -0.0 | 234 12 9.4 6.9 9 819 1829 245 20 18.1 8.5 | 206 17 7.5 15.3 10 789 2134 245 20 18.1 8.5 | 206 17 7.5 15.3 11 761 2438 255 19 18.4 4.9 | 213 14 7.7 11.8 12 733 2743 260 16 15.8 2.8 | 208 11 5.1 9.7 13 706 3048 290 10 9.4 -3.4 | 161 4 -1.2 3.5 14 700 3121 285 10 9.7 -2.6 | 167 4 -1.0 4.3 15 680 3353 280 15 14.8 -2.6 | 224 6 4.2 4.3 16 654 3658 295 14 12.7 -5.9 | 245 2 2.1 1.0 17 629 3962 270 19 19.0 -0.0 | 231 11 8.4 6.9 18 604 4267 275 20 19.9 -1.7 | 241 11 9.3 5.2 19 581 4572 275 22 21.9 -1.9 | 246 12 11.3 5.0 20 559 4877 260 17 16.7 3.0 | 212 12 6.1 9.8 21 538 5182 250 19 17.9 6.5 | 208 15 7.2 13.4 22 517 5486 265 17 16.9 1.5 | 217 10 6.3 8.4 23 500 5750 255 16 15.5 4.1 | 204 12 4.8 11.0 24 497 5791 260 13 12.8 2.3 | 193 9 2.2 9.2 25 477 6096 255 17 16.4 4.4 | 207 13 5.8 11.3 26 458 6401 260 18 17.7 3.1 | 215 12 7.1 10.0 27 439 6706 275 26 25.9 -2.3 | 253 16 15.3 4.6 28 405 7315 235 35 28.7 20.1 | 214 32 18.1 27.0 29 400 7400 240 41 35.5 20.5 | 222 37 24.9 27.4 30 388 7620 235 41 33.6 23.5 | 217 38 23.0 30.4 31 340 8534 250 50 47.0 17.1 | 237 44 36.4 24.0 32 312 9144 245 53 48.0 22.4 | 232 48 37.4 29.3 33 300 9420 245 53 48.0 22.4 | 232 48 37.4 29.3 34 299 9449 245 53 48.0 22.4 | 232 48 37.4 29.3 35 250 10630 250 48 45.1 16.4 | 236 42 34.5 23.3 36 249 10668 250 48 45.1 16.4 | 236 42 34.5 23.3 37 200 12040 240 63 54.6 31.5 | 229 58 43.9 38.4 38 175 12853 245 71 64.3 30.0 | 236 65 53.7 36.9 39 168 13106 245 71 64.3 30.0 | 236 65 53.7 36.9 40 166 13169 240 60 52.0 30.0 | 228 55 41.3 36.9 41 150 13780 260 48 47.3 8.3 | 247 40 36.7 15.2 42 118 15240 260 38 37.4 6.6 | 243 30 26.8 13.5 43 113 15545 260 41 40.4 7.1 | 245 33 29.8 14.0 44 107 15850 260 32 31.5 5.6 | 239 24 20.9 12.5 45 102 16154 225 21 14.8 14.8 | 191 22 4.2 21.7 46 100 16270 255 38 36.7 9.8 | 237 31 26.1 16.7 47 97 16459 255 38 36.7 9.8 | 237 31 26.1 16.7 48 92 16764 285 32 30.9 -8.3 | 274 20 20.3 -1.4 49 88 17069 260 22 21.7 3.8 | 226 15 11.0 10.7 50 84 17374 265 16 15.9 1.4 | 213 10 5.3 8.3 51 76 17983 235 24 19.7 13.8 | 204 23 9.0 20.7 52 72 18288 255 21 20.3 5.4 | 218 16 9.7 12.3 53 70 18480 240 20 17.3 10.0 | 202 18 6.7 16.9 54 69 18593 240 20 17.3 10.0 | 202 18 6.7 16.9 55 65 18898 250 19 17.9 6.5 | 208 15 7.2 13.4 56 62 19202 265 10 10.0 0.9 | 175 8 -0.7 7.8 57 59 19507 195 10 2.6 9.7 | 154 18 -8.0 16.6 58 56 19812 265 17 16.9 1.5 | 217 10 6.3 8.4 59 54 20117 290 10 9.4 -3.4 | 161 4 -1.2 3.5 60 50 20570 255 12 11.6 3.1 | 186 10 1.0 10.0 61 49 20726 245 10 9.1 4.2 | 172 11 -1.6 11.1 62 46 21031 270 13 13.0 -0.0 | 199 7 2.4 6.9 63 44 21336 200 2 0.7 1.9 | 131 13 -9.9 8.8 64 30 23800 70 3 -2.8 -1.0 | 114 15 -13.4 5.9 65 27 24384 60 5 -4.3 -2.5 | 106 16 -14.9 4.4 66 24 25298 80 11 -10.8 -1.9 | 103 22 -21.5 5.0 67 23 25603 80 15 -14.8 -2.6 | 100 26 -25.4 4.3 68 21 26213 145 12 -6.9 9.8 | 134 24 -17.5 16.7 69 20 26400 125 6 -4.9 3.4 | 124 19 -15.5 10.3 70 17 27432 115 4 -3.6 1.7 | 121 17 -14.2 8.6 71 16 28042 80 11 -10.8 -1.9 | 103 22 -21.5 5.0 72 14 28651 140 11 -7.1 8.4 | 131 23 -17.7 15.3 73 14 28956 240 14 12.1 7.0 | 186 14 1.5 13.9 74 13 29261 335 11 4.6 -10.0 | 63 7 -6.0 -3.1 75 12 29566 355 14 1.2 -13.9 | 53 12 -9.4 -7.1 76 11 30175 85 17 -16.9 -1.5 | 101 28 -27.6 5.4 77 10 30980 265 6 6.0 0.5 | 148 9 -4.6 7.4 78 7 33410 270 5 5.0 -0.0 | 141 9 -5.6 6.9 Wind Parameters Mean winds (0-6000m): 273.0 at 16.9 knts Storm direction: 303.0 at 12.7 knts Shear (0-3000m) pos: 2.4 neg: 3.7 tot: 6.2 10-3/s Storm rel Dir Shear (0-3000m): 64.2 deg Storm rel helicity (0-3000m) pos: 7.4 neg: -95.5 tot: -88.1 m^2/s^2 ave: -29.4 10^-3 m/s^2 rel: -0.68 Storm rel vorticity (0-3000m) horiz: 10.0 stream: -6.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.04 Bulk Shear: 38.26 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 ------------------------------------------------------------------------------- 500 346 10 68 9| 0.0 10.5 10.5| 0.0 -27.6 -27.6 -55.3 -0.87| 13.5-11.8 1000 328 14 35 6| 0.0 7.7 7.7| 0.0 -42.0 -42.0 -42.0 -0.91| 11.6-10.6 1500 309 16 334 3| 0.0 7.0 7.0| 0.0 -66.9 -66.9 -44.6 -0.87| 12.4-10.8 2000 291 17 258 5| 0.0 5.6 5.6| 0.0 -87.3 -87.3 -43.6 -0.85| 11.0 -9.4 2500 281 17 239 7| 1.0 4.5 5.5| 7.4 -88.4 -81.0 -32.4 -0.73| 9.9 -7.2 3000 278 17 233 7| 2.4 3.7 6.2| 7.4 -95.5 -88.1 -29.4 -0.68| 10.0 -6.8 4000 279 16 232 7| 1.9 3.8 5.7| 16.2 -98.3 -82.1 -20.5 -0.46| 9.6 -4.4 5000 277 17 231 8| 1.5 3.3 4.8| 21.7-121.6 -99.8 -20.0 -0.46| 8.9 -4.1 6000 273 17 226 9| 1.5 2.8 4.4| 34.8-134.3 -99.5 -16.6 -0.39| 8.7 -3.4 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20250423.00.gif