UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101612.upa.cvt Date: 1200Z 16 OCT 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 16 OCT 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 8.4 4.4 76 4.0 6.4 290 4 280.9 281.8 279.2 295.3 5.20 1 1006 113 9.2 4.3 71 4.9 6.8 300 6 281.9 282.8 279.6 296.2 5.17 2 1001 150 9.6 3.6 66 6.0 6.6 325 12 282.7 283.5 279.7 296.5 4.95 3 1000 157 9.6 3.6 66 6.0 6.6 330 13 282.8 283.6 279.8 296.5 4.95 4 991 232 10.0 3.0 62 7.0 6.6 335 16 283.9 284.7 280.1 297.3 4.79 5 972 392 8.8 0.8 57 8.0 5.1 344 18 284.2 285.0 279.6 296.0 4.17 6 925 800 5.6 -2.4 56 8.0 2.1 360 16 285.0 285.6 279.0 294.9 3.46 7 917 871 5.2 -2.8 56 8.0 1.8 6 17 285.3 285.9 279.1 295.0 3.39 8 902 1005 4.4 -5.6 48 10.0 0.4 6 20 285.9 286.3 278.6 293.9 2.79 9 895 1069 4.2 -6.8 45 11.0 -0.1 2 21 286.3 286.7 278.5 293.7 2.56 10 891 1105 4.4 -9.6 35 14.0 -0.7 1 22 286.9 287.2 278.1 293.0 2.07 11 886 1151 4.4 -6.6 45 11.0 0.1 358 23 287.3 287.8 279.1 295.0 2.63 12 880 1206 4.6 -7.4 41 12.0 -0.1 356 24 288.1 288.5 279.3 295.4 2.49 13 872 1281 5.0 -15.0 22 20.0 -1.6 353 25 289.3 289.5 278.3 293.4 1.37 14 869 1309 5.0 -12.0 28 17.0 -1.0 352 25 289.5 289.9 279.0 294.8 1.75 15 855 1441 5.0 -20.0 14 25.0 -2.4 347 26 290.9 291.1 278.5 293.7 0.91 16 850 1489 4.8 -13.2 26 18.0 -1.4 345 27 291.2 291.5 279.6 296.1 1.62 17 849 1499 4.8 -13.2 26 18.0 -1.4 345 27 291.3 291.6 279.6 296.2 1.63 18 843 1556 4.6 -21.4 13 26.0 -2.9 346 26 291.7 291.8 278.7 294.2 0.82 19 825 1732 3.6 -25.4 10 29.0 -4.0 352 27 292.4 292.5 278.7 294.3 0.59 20 814 1840 3.4 -23.6 12 27.0 -4.0 355 27 293.3 293.4 279.3 295.5 0.70 21 809 1890 3.4 -16.6 21 20.0 -3.0 356 27 293.8 294.1 280.4 297.8 1.29 22 805 1931 3.4 -21.6 14 25.0 -3.8 357 28 294.2 294.4 280.0 296.9 0.84 23 799 1991 3.2 -15.8 23 19.0 -3.1 358 28 294.7 294.9 280.9 299.0 1.39 24 781 2176 2.8 -32.2 6 35.0 -5.1 358 29 296.2 296.2 280.1 297.3 0.33 25 761 2385 2.4 -26.6 10 29.0 -5.1 348 31 297.9 298.0 281.3 299.8 0.57 26 758 2417 2.4 -25.6 11 28.0 -5.0 346 32 298.3 298.4 281.5 300.3 0.63 27 755 2449 2.0 -16.0 25 18.0 -4.0 345 32 298.2 298.4 282.5 302.7 1.45 28 750 2503 1.6 -13.4 32 15.0 -3.7 346 32 298.3 298.6 283.0 303.9 1.81 29 739 2621 0.6 -16.4 27 17.0 -5.0 348 31 298.5 298.7 282.6 303.0 1.43 30 720 2830 -0.7 -12.7 40 12.0 -5.0 349 32 299.3 299.7 283.6 305.5 2.00 31 715 2885 -1.1 -6.1 69 5.0 -3.2 348 33 299.4 300.1 285.2 309.7 3.39 32 700 3054 -2.3 -7.3 69 5.0 -4.3 345 36 299.9 300.5 285.1 309.6 3.15 33 699 3065 -2.3 -7.3 69 5.0 -4.3 345 36 300.1 300.6 285.2 309.7 3.16 34 681 3272 -3.5 -11.5 54 8.0 -6.4 343 41 301.0 301.4 284.7 308.2 2.33 35 680 3283 -3.7 -11.7 54 8.0 -6.6 343 41 300.9 301.3 284.5 308.0 2.29 36 679 3295 -3.5 -12.5 50 9.0 -6.7 343 42 301.2 301.6 284.5 307.9 2.15 37 676 3330 -2.5 -18.5 28 16.0 -7.4 343 42 302.7 303.0 284.2 306.9 1.31 38 672 3377 -2.5 -21.5 22 19.0 -7.9 342 43 303.2 303.4 284.0 306.6 1.02 39 671 3389 -2.5 -22.5 20 20.0 -8.1 342 44 303.4 303.5 284.0 306.4 0.94 40 667 3436 -1.3 -29.3 10 28.0 -8.1 342 45 305.2 305.3 284.2 307.0 0.51 41 658 3545 -0.7 -38.7 4 38.0 -8.4 341 47 307.1 307.1 284.5 307.8 0.20 42 649 3655 1.0 -42.0 2 43.0 -7.5 340 50 310.2 310.3 285.6 310.8 0.15 43 571 4668 -6.7 -43.7 3 37.0 -12.9 332 56 312.8 312.8 286.5 313.3 0.14 44 506 5599 -13.5 -33.5 17 20.0 -17.4 333 60 315.5 315.6 287.8 317.1 0.45 45 500 5690 -13.9 -33.9 17 20.0 -17.7 335 60 316.1 316.2 288.0 317.6 0.43 46 472 6124 -16.5 -37.5 14 21.0 -20.0 330 61 318.1 318.2 288.5 319.3 0.32 47 431 6798 -22.3 -49.3 7 27.0 -25.1 328 60 319.1 319.1 288.6 319.5 0.10 48 400 7340 -26.9 -48.9 11 22.0 -28.9 325 62 320.0 320.0 288.9 320.5 0.11 49 390 7523 -28.5 -48.5 13 20.0 -30.3 325 62 320.3 320.3 288.9 320.7 0.12 50 377 7766 -30.1 -53.1 9 23.0 -31.8 323 62 321.3 321.3 289.2 321.5 0.07 51 345 8397 -32.3 -58.3 6 26.0 -33.8 320 85 326.5 326.5 290.7 326.7 0.04 52 332 8669 -33.7 -58.7 6 25.0 -35.1 320 98 328.2 328.2 291.3 328.4 0.04 53 329 8733 -33.7 -58.7 6 25.0 -35.1 320 101 329.1 329.1 291.5 329.2 0.04 54 328 8754 -33.7 -58.7 6 25.0 -35.1 320 102 329.4 329.4 291.6 329.5 0.04 55 326 8797 -33.1 -60.1 5 27.0 -34.7 320 104 330.8 330.8 292.0 330.9 0.04 56 300 9380 -36.1 -61.1 6 25.0 -37.4 320 117 334.5 334.5 293.0 334.6 0.03 57 250 10620 -43.1 -67.1 5 24.0 -43.9 320 116 342.0 342.0 294.8 342.1 0.02 58 234 11062 -45.8 -68.6 6 22.8 -46.4 320 119 344.5 344.5 295.4 344.5 0.02 59 200 12090 -52.1 -72.1 7 20.0 -52.5 315 104 350.3 350.3 296.7 350.3 0.01 60 150 13910 -61.7 -81.7 5 20.0 -61.9 320 83 363.8 363.8 299.4 363.8 0.00 61 121 15234 -65.7 -84.7 5 19.0 -65.8 315 81 379.5 379.5 302.2 379.5 0.00 62 100 16400 -64.5 -86.5 3 22.0 -64.7 320 51 403.1 403.1 305.6 403.1 0.00 63 84 17455 -66.9 -87.9 4 21.0 -67.0 301 48 418.8 418.8 307.6 418.9 0.00 64 82 17600 -65.1 -88.1 3 23.0 -65.3 313 47 425.4 425.4 308.3 425.4 0.00 65 74 18217 -69.1 -89.1 4 20.0 -69.2 320 42 429.7 429.7 308.8 429.7 0.00 66 71 18464 -68.1 -89.1 3 21.0 -68.2 333 38 436.9 436.9 309.6 436.9 0.00 67 70 18550 -64.9 -88.9 2 24.0 -65.1 340 36 445.5 445.5 310.4 445.5 0.00 68 69 18638 -63.9 -88.9 2 25.0 -64.1 334 37 449.5 449.5 310.8 449.5 0.00 69 66 18911 -62.9 -87.9 2 25.0 -63.2 331 38 457.5 457.5 311.5 457.5 0.00 70 59 19597 -66.1 -89.1 3 23.0 -66.3 339 10 465.2 465.2 312.3 465.2 0.00 71 53 20247 -67.1 -90.1 2 23.0 -67.3 333 11 477.3 477.3 313.2 477.4 0.00 72 51 20479 -66.5 -90.5 2 24.0 -66.7 307 13 484.0 484.0 313.8 484.0 0.00 73 50 20600 -63.7 -88.7 2 25.0 -64.1 300 18 493.4 493.4 314.5 493.4 0.00 74 47 20980 -63.7 -89.7 2 26.0 -64.1 306 15 502.2 502.2 315.1 502.2 0.00 75 46 21112 -61.5 -88.5 2 27.0 -62.0 297 16 510.6 510.6 315.7 510.6 0.00 76 43 21531 -61.3 -88.3 2 27.0 -61.9 294 13 521.0 521.0 316.4 521.0 0.00 TRP 121 15234 -65.7 -84.7 5 19.0 -65.8 315 81 379.5 379.5 302.2 379.5 0.00 WND 234 11062 -45.8 -68.6 6 22.8 -46.4 320 119 344.5 344.5 295.4 344.5 0.02 Sounding variables and indices 1000-500 mb thick: 5533.00 m Freezing level: 730.23 mb = 2717.54 m = 8915.70 ft Freezing level: 654.29 mb = 3590.03 m = 11778.16 ft Freezing level: 638.87 mb = 3786.49 m = 12422.72 ft Wetbulb zero: 896.29 mb = 1056.96 m = 3467.67 ft Precipitable water: 0.34 inches Sfc-500 mean rel hum: 24.82 % Est. max temperature: 18.12 C = 64.61 F Sfc-Lift cond lev (LCL): 948.30 mb = 595.46 m = 1953.60 ft T: 7.21 C 700-500 lapse rate: 4.40 C/km ThetaE index: 2.40 C Layer 972.0- 917.0 mb Conv cond level (CCL): 569.86 mb = 4683.83 m = 15366.70 ft Mean mixing ratio: 4.03 g/kg Conv temperature: 40.37 C = 104.67 F Cap Strength: 17.71 C Lifted Index: 18.07 C Risk: None Lifted Index @300 mb: 27.51 C Lifted Index @700 mb: 9.63 C Showalter Index: 17.84 C Risk: None Total Totals Index: 19.40 C Risk: None Vertical Totals Index: 18.70 C Cross Totals Index: 0.70 C K Index: 0.50 Risk: None Sweat Index: 114.00 Risk: None Energy Index: 4.60 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.89 J/kg Max Up Vert Vel: 4.22 m/s Conv Inhibition (B-): 29521.44 J/kg Cap Strength: 17.90 C Lift Cond Lev (LCL): 852.74 mb = 1462.78 m = 4799.07 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 9 at 30 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 98 290 4 3.8 -1.4 | 197 29 8.7 28.2 1 1000 157 330 13 6.5 -11.3 | 212 22 11.4 18.3 2 982 305 340 18 6.2 -16.9 | 221 17 11.1 12.6 3 947 610 355 19 1.7 -18.9 | 212 12 6.6 10.6 4 925 800 360 16 -0.0 -16.0 | 200 14 4.9 13.6 5 912 914 10 18 -3.1 -17.7 | 189 12 1.8 11.8 6 879 1219 355 24 2.1 -23.9 | 231 9 7.0 5.7 7 850 1489 345 27 7.0 -26.1 | 254 12 11.9 3.5 8 846 1524 345 26 6.7 -25.1 | 249 12 11.6 4.4 9 815 1829 355 27 2.4 -26.9 | 250 8 7.2 2.7 10 785 2134 360 29 -0.0 -29.0 | 263 5 4.9 0.6 11 756 2438 345 32 8.3 -30.9 | 276 13 13.2 -1.3 12 728 2743 350 31 5.4 -30.5 | 275 10 10.3 -1.0 13 700 3054 345 36 9.3 -34.8 | 290 15 14.2 -5.2 14 648 3658 340 50 17.1 -47.0 | 308 28 22.0 -17.4 15 600 4267 335 52 22.0 -47.1 | 303 32 26.9 -17.6 16 555 4877 330 58 29.0 -50.2 | 301 40 33.9 -20.7 17 513 5486 330 61 30.5 -52.8 | 303 42 35.4 -23.3 18 500 5690 335 60 25.4 -54.4 | 309 39 30.3 -24.8 19 473 6096 330 61 30.5 -52.8 | 303 42 35.4 -23.3 20 454 6401 330 59 29.5 -51.1 | 302 41 34.4 -21.5 21 400 7340 325 62 35.6 -50.8 | 298 46 40.5 -21.2 22 385 7620 325 62 35.6 -50.8 | 298 46 40.5 -21.2 23 368 7925 320 63 40.5 -48.3 | 292 49 45.4 -18.7 24 324 8839 320 106 68.1 -81.2 | 305 89 73.0 -51.6 25 310 9144 320 108 69.4 -82.7 | 306 91 74.3 -53.2 26 300 9380 320 117 75.2 -89.6 | 307 100 80.1 -60.1 27 297 9449 320 117 75.2 -89.6 | 307 100 80.1 -60.1 28 250 10620 320 116 74.6 -88.9 | 307 99 79.5 -59.3 29 234 11062 320 119 76.5 -91.2 | 307 102 81.4 -61.6 30 226 11278 320 119 76.5 -91.2 | 307 102 81.4 -61.6 31 200 12090 315 104 73.5 -73.5 | 299 90 78.4 -44.0 32 197 12192 315 103 72.8 -72.8 | 299 89 77.7 -43.3 33 170 13106 320 116 74.6 -88.9 | 307 99 79.5 -59.3 34 150 13910 320 83 53.4 -63.6 | 300 67 58.2 -34.0 35 147 14021 320 83 53.4 -63.6 | 300 67 58.2 -34.0 36 127 14935 315 76 53.7 -53.7 | 292 63 58.6 -24.2 37 121 15234 315 81 57.3 -57.3 | 294 68 62.2 -27.7 38 121 15240 315 76 53.7 -53.7 | 292 63 58.6 -24.2 39 115 15545 315 82 58.0 -58.0 | 294 69 62.9 -28.4 40 100 16400 320 51 32.8 -39.1 | 284 39 37.7 -9.5 41 94 16764 320 51 32.8 -39.1 | 284 39 37.7 -9.5 42 85 17374 295 49 44.4 -20.7 | 260 50 49.3 8.9 43 81 17678 320 46 29.6 -35.2 | 279 35 34.5 -5.7 44 73 18288 320 42 27.0 -32.2 | 275 32 31.9 -2.6 45 70 18550 340 36 12.3 -33.8 | 284 18 17.2 -4.3 46 70 18593 335 37 15.6 -33.5 | 281 21 20.5 -4.0 47 66 18898 330 39 19.5 -33.8 | 280 25 24.4 -4.2 48 63 19202 360 16 -0.0 -16.0 | 200 14 4.9 13.6 49 60 19507 335 9 3.8 -8.2 | 202 23 8.7 21.4 50 57 19812 350 13 2.3 -12.8 | 203 18 7.2 16.8 51 54 20117 350 11 1.9 -10.8 | 200 20 6.8 18.7 52 51 20422 310 10 7.7 -6.4 | 208 26 12.6 23.1 53 50 20600 300 18 15.6 -9.0 | 225 29 20.5 20.6 54 49 20726 320 14 9.0 -10.7 | 216 23 13.9 18.8 55 45 21031 290 17 16.0 -5.8 | 221 32 20.9 23.7 56 42 21336 295 11 10.0 -4.6 | 211 29 14.9 24.9 57 39 21641 350 22 3.8 -21.7 | 228 12 8.7 7.9 Wind Parameters Mean winds (0-6000m): 339.4 at 40.0 knts Storm direction: 9.4 at 30.0 knts Shear (0-3000m) pos: 4.3 neg: 3.3 tot: 7.6 10-3/s Storm rel Dir Shear (0-3000m): 95.6 deg Storm rel helicity (0-3000m) pos: 103.4 neg: -27.7 tot: 75.7 m^2/s^2 ave: 25.2 10^-3 m/s^2 rel: 0.30 Storm rel vorticity (0-3000m) horiz: 11.0 stream: 3.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.12 Bulk Shear: 74.16 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 ------------------------------------------------------------------------------- 500 342 16 215 17| 18.1 0.0 18.1| 57.3 -8.0 49.3 98.6 0.36| 21.3 7.7 1000 353 17 210 14| 10.6 0.0 10.6| 66.4 -25.6 40.8 40.8 0.18| 16.4 3.0 1500 352 20 218 13| 7.1 2.5 9.6| 84.7 -27.5 57.2 38.1 0.30| 14.3 4.3 2000 353 22 224 11| 6.5 1.9 8.4| 87.1 -27.5 59.6 29.8 0.29| 12.4 3.5 2500 352 24 232 10| 5.2 2.9 8.1| 90.4 -27.6 62.8 25.1 0.27| 11.7 3.2 3000 351 25 242 10| 4.3 3.3 7.6|103.4 -27.7 75.7 25.2 0.30| 11.0 3.3 4000 347 31 271 12| 3.2 4.4 7.7|133.0 -41.7 91.3 22.8 0.28| 10.4 2.9 5000 342 36 286 16| 2.6 4.5 7.1|138.0 -58.6 79.4 15.9 0.24| 9.4 2.2 6000 339 40 292 21| 2.4 3.9 6.4|193.0-104.1 88.9 14.8 0.22| 8.9 1.9 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251016.12.gif