UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101212.upa.cvt Date: 1200Z 12 OCT 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 12 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 1004 98 16.8 15.8 94 1.0 16.2 35 11 289.6 291.6 289.2 321.4 11.31 1 1000 120 16.4 14.8 90 1.6 15.4 35 11 289.5 291.4 288.5 319.4 10.64 2 997 146 16.2 14.5 90 1.7 15.1 35 13 289.6 291.4 288.4 319.0 10.46 3 966 414 13.8 13.8 100 0.0 13.8 44 25 289.8 291.6 288.3 318.8 10.32 4 925 780 12.0 12.0 100 0.0 12.0 60 33 291.6 293.3 288.3 318.7 9.56 5 874 1255 10.0 10.0 100 0.0 10.0 85 38 294.3 295.9 288.6 319.7 8.85 6 850 1486 8.4 8.3 99 0.1 8.3 85 39 294.9 296.4 288.2 318.4 8.11 7 828 1703 6.6 5.6 93 1.0 6.1 91 30 295.3 296.5 287.2 315.3 6.90 8 817 1813 8.0 7.9 99 0.1 7.9 94 24 297.9 299.4 289.3 321.9 8.21 9 751 2506 5.2 5.2 100 0.0 5.2 82 14 302.1 303.5 290.0 324.2 7.40 10 726 2783 4.4 4.0 97 0.4 4.2 75 10 304.2 305.5 290.4 325.4 7.04 11 700 3079 2.2 2.0 99 0.2 2.1 110 15 304.9 306.1 290.0 324.1 6.33 12 690 3195 1.4 1.3 99 0.1 1.4 110 13 305.3 306.4 289.9 323.8 6.10 13 685 3253 1.8 1.8 100 0.0 1.8 110 12 306.4 307.6 290.5 325.8 6.37 14 643 3761 -0.9 -0.9 100 0.0 -0.9 149 9 308.9 310.0 290.6 326.1 5.58 15 640 3798 -1.3 -1.3 100 0.0 -1.3 157 9 308.9 309.9 290.5 325.7 5.44 16 633 3886 -2.3 -4.4 85 2.1 -3.3 175 8 308.7 309.5 289.5 322.3 4.36 17 619 4062 -4.3 -17.3 36 13.0 -8.5 211 7 308.4 308.7 286.6 313.5 1.59 18 606 4229 -6.3 -29.3 14 23.0 -11.6 245 5 307.9 308.1 285.2 309.9 0.56 19 605 4242 -6.1 -32.1 11 26.0 -11.7 248 5 308.3 308.4 285.2 309.8 0.43 20 602 4281 -5.7 -32.7 10 27.0 -11.5 255 5 309.2 309.3 285.5 310.6 0.41 21 589 4452 -4.7 -32.7 9 28.0 -11.0 243 6 312.3 312.4 286.6 313.8 0.41 22 583 4533 -5.3 -34.3 8 29.0 -11.5 238 6 312.5 312.6 286.7 313.8 0.36 23 563 4807 -3.7 -41.7 3 38.0 -11.0 220 8 317.6 317.6 288.2 318.2 0.17 24 528 5313 -4.9 -46.9 2 42.0 -12.2 283 10 322.0 322.0 289.5 322.4 0.11 25 527 5328 -4.5 -46.5 2 42.0 -11.9 285 10 322.7 322.7 289.7 323.1 0.11 26 500 5740 -7.1 -48.1 2 41.0 -13.9 350 12 324.4 324.4 290.2 324.8 0.10 27 489 5913 -8.3 -47.3 3 39.0 -14.7 343 11 325.0 325.0 290.4 325.4 0.11 28 412 7211 -19.3 -53.3 3 34.0 -23.0 270 3 327.1 327.1 291.0 327.4 0.07 29 409 7265 -19.7 -53.7 3 34.0 -23.3 265 2 327.3 327.3 291.0 327.5 0.06 30 406 7320 -19.9 -49.9 5 30.0 -23.4 259 2 327.7 327.7 291.2 328.1 0.10 31 404 7356 -19.9 -33.9 28 14.0 -22.5 236 5 328.2 328.3 291.7 330.2 0.54 32 403 7375 -19.9 -32.9 30 13.0 -22.4 225 7 328.4 328.5 291.9 330.6 0.60 33 402 7393 -19.5 -28.5 45 9.0 -21.5 213 8 329.2 329.4 292.4 332.5 0.91 34 400 7430 -19.3 -25.3 59 6.0 -20.8 190 11 329.9 330.1 292.9 334.3 1.22 35 397 7486 -19.3 -22.0 79 2.7 -20.1 189 12 330.6 330.9 293.4 336.4 1.65 36 396 7505 -19.1 -21.3 83 2.2 -19.7 188 12 331.1 331.5 293.7 337.3 1.76 37 391 7600 -19.3 -24.3 65 5.0 -20.6 186 14 332.1 332.3 293.6 337.0 1.37 38 390 7619 -19.3 -24.0 66 4.7 -20.5 185 14 332.3 332.6 293.7 337.3 1.41 39 389 7638 -19.1 -23.9 66 4.8 -20.4 187 14 332.8 333.1 293.8 337.9 1.43 40 365 8110 -22.7 -29.7 53 7.0 -24.2 246 13 334.1 334.3 293.7 337.4 0.89 41 348 8459 -25.7 -30.7 63 5.0 -26.7 269 12 334.7 334.8 293.8 337.8 0.85 42 340 8628 -27.1 -33.1 57 6.0 -28.2 275 12 335.0 335.1 293.7 337.6 0.69 43 330 8843 -29.1 -33.2 68 4.1 -29.8 275 13 335.1 335.3 293.7 337.7 0.71 44 320 9063 -30.1 -39.1 41 9.0 -31.3 247 14 336.7 336.8 293.9 338.2 0.40 45 314 9198 -31.1 -39.1 45 8.0 -32.1 233 15 337.1 337.2 294.0 338.7 0.41 46 300 9520 -34.1 -41.1 49 7.0 -34.9 215 19 337.3 337.4 294.0 338.7 0.35 47 291 9731 -35.9 -41.9 54 6.0 -36.5 215 19 337.7 337.8 294.1 339.0 0.33 48 284 9899 -37.5 -41.9 63 4.4 -37.9 209 22 337.8 337.8 294.1 339.1 0.34 49 281 9972 -38.1 -43.1 59 5.0 -38.6 206 24 337.9 338.0 294.1 339.1 0.30 50 277 10070 -38.9 -42.6 68 3.7 -39.2 201 26 338.2 338.2 294.2 339.4 0.32 51 276 10094 -39.1 -44.1 59 5.0 -39.5 200 26 338.2 338.3 294.1 339.3 0.28 52 273 10169 -40.1 -43.2 72 3.1 -40.4 197 28 337.8 337.9 294.1 339.0 0.31 53 270 10244 -40.7 -43.8 72 3.1 -40.9 194 30 338.0 338.1 294.1 339.2 0.29 54 266 10344 -41.5 -44.6 72 3.1 -41.8 189 32 338.3 338.4 294.1 339.4 0.27 55 262 10447 -42.3 -46.3 65 4.0 -42.6 185 34 338.6 338.7 294.2 339.5 0.23 56 258 10550 -43.3 -48.3 58 5.0 -43.6 180 36 338.6 338.7 294.1 339.4 0.19 57 250 10760 -44.9 -49.1 63 4.2 -45.2 170 45 339.3 339.3 294.3 340.0 0.18 58 200 12220 -54.7 -70.7 12 16.0 -54.9 215 28 346.1 346.1 295.8 346.2 0.01 59 183 12782 -59.7 -70.7 23 11.0 -59.8 200 25 346.9 346.9 296.0 347.0 0.02 60 150 14020 -61.9 -80.9 6 19.0 -62.0 230 36 363.4 363.4 299.4 363.5 0.00 61 100 16510 -66.9 -85.9 5 19.0 -67.0 285 23 398.5 398.5 305.0 398.5 0.00 62 93 16945 -68.1 -86.1 6 18.0 -68.2 294 19 404.5 404.5 305.8 404.5 0.00 63 85 17485 -66.5 -87.5 4 21.0 -66.7 295 14 418.2 418.2 307.5 418.2 0.00 64 70 18650 -68.5 -88.5 4 20.0 -68.7 305 6 437.8 437.8 309.7 437.8 0.00 65 64 19188 -69.7 -89.7 4 20.0 -69.8 256 10 446.6 446.6 310.6 446.6 0.00 66 59 19677 -67.3 -89.3 3 22.0 -67.5 281 12 462.5 462.5 312.0 462.5 0.00 67 57 19885 -68.3 -90.3 3 22.0 -68.5 300 11 464.8 464.8 312.2 464.8 0.00 68 56 19992 -65.9 -89.9 2 24.0 -66.1 310 11 472.6 472.6 312.8 472.6 0.00 69 51 20567 -61.7 -88.7 2 27.0 -62.1 8 13 495.3 495.3 314.6 495.3 0.00 70 50 20690 -62.7 -88.7 2 26.0 -63.1 30 9 495.7 495.7 314.7 495.7 0.00 71 46 21203 -63.5 -89.5 2 26.0 -63.9 3 4 505.8 505.8 315.4 505.8 0.00 72 38 22395 -56.7 -86.7 1 30.0 -57.8 275 11 551.5 551.5 318.2 551.5 0.01 73 33 23283 -60.1 -88.1 1 28.0 -60.9 158 10 565.2 565.2 318.9 565.2 0.00 74 30 23880 -58.3 -87.3 1 29.0 -59.4 260 12 585.7 585.7 319.9 585.7 0.01 75 29 24093 -58.1 -88.1 1 30.0 -59.3 265 18 592.0 592.0 320.2 592.0 0.01 76 29 24093 -55.9 -86.9 1 31.0 -57.4 265 18 598.0 598.0 320.5 598.1 0.01 77 27 24546 -55.7 -86.7 1 31.0 -57.3 292 12 610.9 610.9 321.1 611.0 0.01 78 26 24785 -56.5 -86.5 1 30.0 -58.0 332 11 615.3 615.3 321.3 615.3 0.01 79 24 25292 -56.3 -87.3 1 31.0 -58.0 73 7 630.1 630.1 321.9 630.2 0.01 80 22 25848 -52.7 -85.7 1 33.0 -55.2 175 6 656.7 656.7 322.9 656.8 0.01 81 20 26460 -53.7 -85.7 1 32.0 -56.2 260 17 671.8 671.8 323.5 671.9 0.01 82 18 27139 -53.1 -86.1 1 33.0 -56.0 262 20 694.2 694.3 324.3 694.3 0.01 83 18 27139 -51.1 -85.1 1 34.0 -54.5 262 20 700.6 700.6 324.4 700.7 0.02 84 16 27912 -48.1 -83.1 1 35.0 -52.8 280 21 734.3 734.4 325.5 734.6 0.02 85 15 28337 -49.1 -84.1 1 35.0 -53.7 290 27 744.7 744.7 325.8 744.9 0.02 86 14 28792 -46.9 -82.9 1 36.0 -52.5 288 13 767.0 767.0 326.4 767.3 0.03 87 13 29283 -47.7 -83.7 1 36.0 -53.2 244 12 780.7 780.7 326.8 780.9 0.03 88 10 31020 -47.1 -83.1 1 36.0 -53.8 255 24 843.7 843.8 328.2 844.1 0.04 89 10 31020 -45.7 -82.7 1 37.0 -53.1 255 24 849.0 849.0 328.4 849.4 0.04 90 9.8 31154 -47.7 -83.7 1 36.0 -54.2 846.4 846.4 328.3 846.7 0.04 91 8.9 31789 -48.7 -84.7 1 36.0 -55.2 866.2 866.2 328.7 866.5 0.03 92 8.5 32092 -47.5 -83.5 1 36.0 -54.6 882.3 882.3 329.1 882.7 0.04 TRP 183 12782 -59.7 -70.7 23 11.0 -59.8 200 25 346.9 346.9 296.0 347.0 0.02 WND Sounding variables and indices 1000-500 mb thick: 5620.00 m Freezing level: 657.00 mb = 3591.69 m = 11783.62 ft Wetbulb zero: 657.30 mb = 3584.43 m = 11759.80 ft Precipitable water: 1.26 inches Sfc-500 mean rel hum: 69.20 % Est. max temperature: 22.02 C = 71.63 F Sfc-Lift cond lev (LCL): 989.43 mb = 210.47 m = 690.52 ft T: 15.62 C 700-500 lapse rate: 3.49 C/km ThetaE index: 4.39 C Layer 850.0- 817.0 mb Conv cond level (CCL): 949.98 mb = 555.17 m = 1821.40 ft Mean mixing ratio: 10.02 g/kg Conv temperature: 17.67 C = 63.81 F Cap Strength: 9.63 C Lifted Index: 9.87 C Risk: None Lifted Index @300 mb: 13.46 C Lifted Index @700 mb: 2.24 C Showalter Index: 10.22 C Risk: None Total Totals Index: 30.90 C Risk: None Vertical Totals Index: 15.50 C Cross Totals Index: 15.40 C K Index: 23.60 Risk: 20-40 % chance of thunderstorms Sweat Index: 189.60 Risk: None Energy Index: 1.40 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.17 J/kg Max Up Vert Vel: 5.86 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 9.79 C Lift Cond Lev (LCL): 948.15 mb = 571.51 m = 1875.01 ft Lev Free Conv (LFC): 943.15 mb = 616.11 m = 2021.34 ft Equ Level (EL): 903.15 mb = 980.06 m = 3215.38 ft B at Equ Level: 13.08 J/kg Max Parcel Lev (MPL): 783.15 mb = 2161.03 m = 7089.91 ft Wind level data Storm motion: 108 at 12 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 1004 98 35 11 -6.3 -9.0 | 337 14 5.5 -12.9 1 1000 120 35 11 -6.3 -9.0 | 337 14 5.5 -12.9 2 978 305 35 23 -13.2 -18.8 | 4 23 -1.4 -22.8 3 944 610 60 30 -26.0 -15.0 | 37 24 -14.2 -18.9 4 925 780 60 33 -28.6 -16.5 | 39 26 -16.8 -20.4 5 910 914 70 35 -32.9 -12.0 | 53 26 -21.1 -15.9 6 878 1219 85 38 -37.9 -3.3 | 74 27 -26.1 -7.2 7 850 1486 85 39 -38.9 -3.4 | 75 28 -27.1 -7.3 8 846 1524 85 40 -39.8 -3.5 | 75 29 -28.1 -7.4 9 815 1829 95 23 -22.9 2.0 | 80 11 -11.1 -1.9 10 785 2134 100 18 -17.7 3.1 | 82 6 -6.0 -0.8 11 757 2438 85 15 -14.9 -1.3 | 31 6 -3.2 -5.2 12 729 2743 70 9 -8.5 -3.1 | 335 8 3.3 -7.0 13 703 3048 110 16 -15.0 5.5 | 115 4 -3.3 1.5 14 700 3079 110 15 -14.1 5.1 | 117 3 -2.3 1.2 15 676 3353 110 10 -9.4 3.4 | 282 2 2.4 -0.5 16 651 3658 130 10 -7.7 6.4 | 239 5 4.1 2.5 17 602 4267 255 5 4.8 1.3 | 279 17 16.6 -2.6 18 558 4877 215 8 4.6 6.6 | 261 17 16.4 2.6 19 500 5740 350 12 2.1 -11.8 | 319 21 13.9 -15.7 20 497 5791 345 10 2.6 -9.7 | 313 20 14.4 -13.6 21 477 6096 340 12 4.1 -11.3 | 314 22 15.9 -15.2 22 458 6401 340 10 3.4 -9.4 | 311 20 15.2 -13.3 23 406 7315 260 2 2.0 0.3 | 285 14 13.7 -3.6 24 400 7430 190 11 1.9 10.8 | 243 15 13.7 6.9 25 390 7620 185 14 1.2 13.9 | 232 16 13.0 10.0 26 374 7925 235 13 10.6 7.5 | 261 23 22.4 3.5 27 344 8534 275 12 12.0 -1.0 | 282 24 23.7 -5.0 28 329 8839 275 13 13.0 -1.1 | 282 25 24.7 -5.1 29 316 9144 235 15 12.3 8.6 | 259 25 24.1 4.7 30 300 9520 215 19 10.9 15.6 | 243 25 22.7 11.6 31 290 9754 215 19 10.9 15.6 | 243 25 22.7 11.6 32 253 10668 175 39 -3.4 38.9 | 193 36 8.4 34.9 33 250 10760 170 45 -7.8 44.3 | 186 41 4.0 40.4 34 231 11278 160 52 -17.8 48.9 | 172 45 -6.0 44.9 35 210 11887 180 39 0.0 39.0 | 199 37 11.8 35.1 36 200 12220 215 28 16.1 22.9 | 236 34 27.8 19.0 37 191 12497 220 27 17.4 20.7 | 240 34 29.1 16.8 38 183 12782 200 25 8.6 23.5 | 226 28 20.3 19.6 39 182 12802 210 24 12.0 20.8 | 235 29 23.8 16.9 40 174 13106 190 32 5.6 31.5 | 212 33 17.3 27.6 41 165 13411 200 40 13.7 37.6 | 217 42 25.5 33.7 42 150 14020 230 36 27.6 23.1 | 244 44 39.4 19.2 43 143 14326 240 35 30.3 17.5 | 252 44 42.1 13.6 44 129 14935 225 23 16.3 16.3 | 246 31 28.0 12.3 45 123 15240 240 25 21.7 12.5 | 256 35 33.4 8.6 46 111 15850 235 19 15.6 10.9 | 256 28 27.3 7.0 47 106 16154 240 26 22.5 13.0 | 255 35 34.3 9.1 48 101 16459 275 26 25.9 -2.3 | 279 38 37.7 -6.2 49 100 16510 285 23 22.2 -6.0 | 286 35 34.0 -9.9 50 96 16764 285 23 22.2 -6.0 | 286 35 34.0 -9.9 51 91 17069 300 17 14.7 -8.5 | 295 29 26.5 -12.4 52 87 17374 295 11 10.0 -4.6 | 292 23 21.7 -8.6 53 82 17678 295 20 18.1 -8.5 | 292 32 29.9 -12.4 54 78 17983 290 3 2.8 -1.0 | 289 15 14.6 -5.0 55 74 18288 325 10 5.7 -8.2 | 305 21 17.5 -12.1 56 71 18593 340 10 3.4 -9.4 | 311 20 15.2 -13.3 57 70 18650 305 6 4.9 -3.4 | 294 18 16.7 -7.4 58 64 19202 255 10 9.7 2.6 | 274 21 21.4 -1.3 59 61 19507 265 13 13.0 1.1 | 276 25 24.7 -2.8 60 55 20117 320 10 6.4 -7.7 | 302 22 18.2 -11.6 61 52 20422 340 18 6.2 -16.9 | 319 27 17.9 -20.8 62 50 20690 30 9 -4.5 -7.8 | 328 14 7.3 -11.7 63 50 20726 355 10 0.9 -10.0 | 318 19 12.6 -13.9 64 45 21336 5 3 -0.3 -3.0 | 301 13 11.5 -6.9 65 43 21641 300 12 10.4 -6.0 | 294 24 22.2 -9.9 66 41 21946 305 18 14.7 -10.3 | 298 30 26.5 -14.2 67 39 22250 320 12 7.7 -9.2 | 304 23 19.5 -13.1 68 37 22555 230 10 7.7 6.4 | 263 20 19.4 2.5 69 35 22860 230 10 7.7 6.4 | 263 20 19.4 2.5 70 34 23165 135 10 -7.1 7.1 | 236 6 4.7 3.1 71 31 23774 250 12 11.3 4.1 | 270 23 23.1 0.2 72 30 23880 260 12 11.8 2.1 | 274 24 23.6 -1.8 73 29 24079 265 18 17.9 1.6 | 275 30 29.7 -2.4 74 28 24384 265 12 12.0 1.0 | 277 24 23.7 -2.9 75 25 24994 5 11 -1.0 -11.0 | 324 18 10.8 -14.9 76 23 25603 140 3 -1.9 2.3 | 279 10 9.8 -1.6 77 21 26213 225 10 7.1 7.1 | 261 19 18.8 3.1 78 20 26460 260 17 16.7 3.0 | 272 29 28.5 -1.0 79 19 26822 270 19 19.0 -0.0 | 277 31 30.8 -3.9 80 17 27432 255 20 19.3 5.2 | 268 31 31.1 1.3 81 16 27737 275 18 17.9 -1.6 | 280 30 29.7 -5.5 82 15 28346 290 27 25.4 -9.2 | 290 39 37.1 -13.2 83 14 28651 275 15 14.9 -1.3 | 281 27 26.7 -5.2 84 14 28956 300 12 10.4 -6.0 | 294 24 22.2 -9.9 85 13 29261 245 11 10.0 4.6 | 268 22 21.7 0.7 86 12 29566 240 20 17.3 10.0 | 258 30 29.1 6.1 87 12 29870 280 22 21.7 -3.8 | 283 34 33.4 -7.7 88 11 30175 265 19 18.9 1.7 | 274 31 30.7 -2.3 89 10 31020 255 24 23.2 6.2 | 266 35 35.0 2.3 Wind Parameters Mean winds (0-6000m): 78.4 at 16.5 knts Storm direction: 108.4 at 12.4 knts Shear (0-3000m) pos: 4.2 neg: 1.5 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 141.5 deg Storm rel helicity (0-3000m) pos: 263.6 neg: -17.6 tot: 245.9 m^2/s^2 ave: 82.0 10^-3 m/s^2 rel: 0.44 Storm rel vorticity (0-3000m) horiz: 15.2 stream: 6.7 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.84 Bulk Shear: 20.47 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 44 22 10 20| 20.8 0.0 20.8|116.3 0.0 116.3 232.6 0.85| 25.5 21.7 1000 58 28 33 22| 15.4 0.0 15.4|212.3 0.0 212.3 212.3 0.87| 20.6 18.0 1500 69 31 49 23| 10.4 0.0 10.4|249.6 0.0 249.6 166.4 0.82| 16.8 13.8 2000 74 30 54 21| 4.4 0.0 4.4|256.2 0.0 256.2 128.1 0.62| 17.3 10.7 2500 76 27 54 18| 3.5 1.8 5.3|256.2 -13.9 242.3 96.9 0.43| 15.7 6.7 3000 78 24 53 15| 4.2 1.5 5.7|263.6 -17.6 245.9 82.0 0.44| 15.2 6.7 4000 83 21 53 11| 2.6 1.1 3.7|284.4 -19.5 264.9 66.2 0.42| 14.2 5.9 5000 85 18 47 8| 2.0 0.9 2.9|315.8 -41.4 274.4 54.9 0.39| 12.7 4.9 6000 78 17 31 8| 0.4 0.8 1.2|413.5 -44.9 368.5 61.4 0.44| 12.4 5.5 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251012.12.gif