UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042312.upa.cvt Date: 1200Z 23 APR 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 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 1012 98 9.2 4.6 73 4.6 6.9 310 3 281.4 282.3 279.5 295.9 5.25 1 1010 113 12.4 4.4 58 8.0 8.3 317 4 284.7 285.6 281.0 299.3 5.19 2 1008 129 13.6 3.6 51 10.0 8.5 323 6 286.1 287.0 281.3 300.0 4.91 3 1006 145 15.0 4.0 48 11.0 9.3 330 7 287.7 288.5 282.2 302.1 5.06 4 1000 192 16.0 3.0 42 13.0 9.3 350 11 289.1 290.0 282.5 302.8 4.74 5 999 201 16.0 3.0 42 13.0 9.3 351 11 289.2 290.1 282.5 302.9 4.75 6 980 363 15.4 2.4 42 13.0 8.8 7 14 290.2 291.0 282.8 303.6 4.64 7 925 850 11.6 -1.4 40 13.0 5.5 10 20 291.2 291.8 282.2 302.1 3.73 8 906 1023 10.6 -2.4 40 13.0 4.6 3 21 291.9 292.5 282.3 302.2 3.53 9 902 1060 11.0 -10.0 22 21.0 2.8 3 21 292.7 293.0 280.7 298.6 1.98 10 900 1078 11.0 -12.0 19 23.0 2.3 2 20 292.8 293.1 280.4 298.0 1.69 11 890 1171 10.6 -9.4 23 20.0 2.6 1 20 293.4 293.7 281.2 299.7 2.10 12 882 1247 10.4 -2.6 40 13.0 4.4 0 19 293.9 294.6 283.2 304.5 3.58 13 869 1370 9.6 -2.4 43 12.0 4.0 2 17 294.3 295.0 283.5 305.2 3.68 14 862 1437 9.4 -1.6 46 11.0 4.2 4 16 294.8 295.5 284.0 306.5 3.94 15 850 1553 9.2 -5.8 34 15.0 2.7 345 10 295.8 296.3 283.2 304.5 2.91 16 845 1602 9.2 -6.8 32 16.0 2.4 338 10 296.3 296.8 283.2 304.5 2.71 17 829 1760 8.2 -1.8 49 10.0 3.5 315 11 296.9 297.6 284.9 308.9 4.04 18 820 1850 8.8 -8.2 29 17.0 1.7 304 11 298.4 298.9 283.8 306.1 2.51 19 817 1881 8.8 -9.2 27 18.0 1.4 303 11 298.7 299.2 283.7 305.9 2.33 20 779 2272 5.8 -6.2 42 12.0 0.6 299 12 299.6 300.2 284.9 309.0 3.08 21 725 2856 1.2 -6.8 55 8.0 -2.1 305 15 300.8 301.4 285.5 310.5 3.17 22 719 2922 0.6 -7.4 55 8.0 -2.7 309 16 300.8 301.4 285.4 310.2 3.05 23 714 2978 0.2 -7.8 55 8.0 -3.1 311 17 301.0 301.5 285.4 310.1 2.97 24 702 3114 -0.5 -9.5 51 9.0 -4.0 315 18 301.7 302.2 285.2 309.9 2.65 25 700 3137 -0.5 -10.5 47 10.0 -4.3 315 18 301.9 302.4 285.1 309.6 2.45 26 695 3194 -0.5 -12.5 40 12.0 -4.9 319 17 302.6 302.9 285.0 309.1 2.10 27 692 3229 -0.7 -10.7 47 10.0 -4.6 321 17 302.7 303.2 285.4 310.3 2.44 28 680 3368 -1.9 -9.9 54 8.0 -5.0 329 15 302.9 303.4 285.7 311.1 2.65 29 675 3427 -2.3 -13.3 43 11.0 -6.2 323 14 303.1 303.4 285.1 309.5 2.03 30 671 3474 -2.1 -21.1 22 19.0 -7.7 319 14 303.8 304.0 284.3 307.3 1.06 31 670 3486 -2.1 -20.1 24 18.0 -7.5 318 13 303.9 304.2 284.4 307.7 1.16 32 667 3521 -1.3 -28.3 11 27.0 -8.1 314 13 305.2 305.3 284.2 307.1 0.56 33 638 3873 -4.3 -30.3 11 26.0 -10.2 297 10 305.7 305.8 284.3 307.4 0.48 34 629 3985 -4.5 -34.5 8 30.0 -10.7 295 10 306.7 306.8 284.5 307.9 0.33 35 591 4472 -8.3 -35.3 9 27.0 -13.5 286 9 307.8 307.9 284.9 309.0 0.32 36 562 4861 -10.1 -41.1 6 31.0 -15.2 299 7 310.2 310.2 285.6 310.9 0.19 37 561 4875 -10.1 -41.1 6 31.0 -15.2 299 7 310.3 310.4 285.7 311.0 0.19 38 537 5210 -12.9 -35.9 13 23.0 -17.0 289 8 310.9 311.0 286.1 312.1 0.33 39 522 5425 -14.3 -42.3 7 28.0 -18.4 281 9 311.7 311.8 286.2 312.4 0.18 40 500 5750 -16.5 -43.5 8 27.0 -20.1 270 11 312.9 313.0 286.6 313.5 0.16 41 483 6009 -18.5 -47.5 6 29.0 -21.8 274 13 313.6 313.6 286.7 314.0 0.11 42 447 6582 -21.3 -56.3 3 35.0 -24.4 264 26 317.1 317.1 287.8 317.2 0.04 43 438 6732 -22.3 -58.3 2 36.0 -25.2 255 29 317.7 317.7 288.0 317.8 0.03 44 419 7055 -25.1 -60.1 2 35.0 -27.5 250 29 318.1 318.1 288.2 318.2 0.03 45 400 7390 -27.7 -48.7 12 21.0 -29.6 245 29 319.0 319.0 288.5 319.4 0.11 46 386 7645 -29.7 -45.7 20 16.0 -31.2 240 31 319.6 319.7 288.8 320.3 0.17 47 360 8137 -33.7 -50.7 16 17.0 -34.8 248 39 320.7 320.7 289.1 321.1 0.10 48 353 8274 -34.5 -52.5 14 18.0 -35.7 250 41 321.4 321.5 289.3 321.8 0.08 49 351 8314 -34.9 -51.9 16 17.0 -36.0 251 41 321.4 321.4 289.3 321.8 0.09 50 349 8354 -35.3 -46.3 32 11.0 -36.1 251 42 321.4 321.4 289.4 322.1 0.17 51 348 8374 -35.3 -48.3 25 13.0 -36.2 251 42 321.7 321.7 289.4 322.2 0.14 52 347 8394 -35.5 -43.5 44 8.0 -36.2 251 42 321.7 321.7 289.5 322.5 0.23 53 345 8434 -35.7 -41.7 54 6.0 -36.2 252 42 321.9 322.0 289.6 323.0 0.29 54 343 8474 -36.1 -47.1 31 11.0 -36.9 252 42 321.9 321.9 289.5 322.5 0.16 55 342 8494 -36.1 -47.1 31 11.0 -36.9 252 42 322.2 322.2 289.6 322.8 0.16 56 300 9390 -42.7 -47.3 61 4.6 -43.0 250 45 325.2 325.2 290.5 325.9 0.18 57 250 10600 -52.7 -64.7 22 12.0 -52.9 245 48 327.7 327.7 291.1 327.8 0.03 58 200 12000 -64.3 -70.3 44 6.0 -64.4 230 50 330.9 330.9 292.0 331.0 0.01 59 193 12215 -66.3 -69.9 60 3.6 -66.3 235 45 331.1 331.1 292.0 331.2 0.02 60 150 13750 -61.9 -81.9 5 20.0 -62.0 260 41 363.4 363.4 299.4 363.5 0.00 61 100 16270 -61.1 -87.1 2 26.0 -61.4 260 32 409.7 409.7 306.5 409.7 0.00 62 70 18470 -61.5 -88.5 2 27.0 -61.9 240 20 452.8 452.8 311.1 452.8 0.00 63 66 18835 -62.3 -89.3 2 27.0 -62.6 261 25 458.8 458.8 311.7 458.8 0.00 64 65 18930 -60.5 -88.5 1 28.0 -60.9 267 26 464.7 464.7 312.2 464.7 0.00 65 63 19125 -61.5 -88.5 2 27.0 -61.9 276 23 466.7 466.7 312.4 466.7 0.00 66 59 19535 -59.9 -88.9 1 29.0 -60.4 260 25 479.1 479.1 313.4 479.1 0.00 67 53 20205 -60.7 -88.7 1 28.0 -61.2 305 11 492.2 492.2 314.4 492.2 0.00 68 50 20570 -59.3 -88.3 1 29.0 -59.9 285 11 503.7 503.7 315.2 503.8 0.00 69 38 22301 -55.7 -87.7 1 32.0 -56.9 273 3 554.0 554.0 318.3 554.1 0.00 70 30 23800 -57.1 -88.1 1 31.0 -58.4 95 5 589.0 589.0 320.1 589.0 0.01 71 24 25225 -52.9 -86.9 1 34.0 -55.2 69 10 640.0 640.0 322.3 640.1 0.01 72 23 25499 -53.7 -86.7 1 33.0 -55.9 92 11 645.5 645.5 322.5 645.5 0.01 73 20 26400 -52.1 -87.1 1 35.0 -55.0 155 7 676.7 676.7 323.7 676.8 0.01 74 19 26732 -51.9 -86.9 1 35.0 -55.0 167 8 687.3 687.3 324.0 687.4 0.01 75 17 27460 -47.9 -84.9 1 37.0 -52.5 202 13 722.4 722.4 325.1 722.5 0.02 76 15 28283 -49.5 -86.5 1 37.0 -53.9 100 6 743.4 743.4 325.7 743.5 0.01 77 12 29756 -46.3 -85.3 0 39.0 -52.7 230 13 803.7 803.7 327.3 803.9 0.02 78 11 30333 -47.3 -85.3 1 38.0 -53.6 70 11 820.3 820.3 327.7 820.5 0.02 79 10 30970 -42.5 -82.5 0 40.0 -51.5 200 15 860.9 860.9 328.7 861.3 0.04 80 9.5 31318 -40.7 -81.7 0 41.0 -50.8 880.4 880.5 329.0 881.0 0.05 81 8.8 31837 -42.3 -83.3 0 41.0 -52.0 893.7 893.8 329.3 894.2 0.04 82 8.0 32483 -41.7 -82.7 0 41.0 -52.1 920.8 920.8 329.8 921.4 0.05 83 7.6 32833 -38.1 -80.1 0 42.0 -50.8 949.0 949.0 330.4 949.9 0.09 TRP 193 12215 -66.3 -69.9 60 3.6 -66.3 235 45 331.1 331.1 292.0 331.2 0.02 WND Sounding variables and indices 1000-500 mb thick: 5558.00 m Freezing level: 710.57 mb = 3017.21 m = 9898.87 ft Wetbulb zero: 767.12 mb = 2397.18 m = 7864.68 ft Precipitable water: 0.49 inches Sfc-500 mean rel hum: 28.31 % Est. max temperature: 22.67 C = 72.80 F Sfc-Lift cond lev (LCL): 943.51 mb = 683.11 m = 2241.15 ft T: 12.90 C 700-500 lapse rate: 6.12 C/km ThetaE index: 4.25 C Layer 902.0- 890.0 mb Conv cond level (CCL): 626.77 mb = 4012.78 m = 13165.12 ft Mean mixing ratio: 4.30 g/kg Conv temperature: 34.70 C = 94.46 F Cap Strength: 10.29 C Lifted Index: 10.67 C Risk: None Lifted Index @300 mb: 16.11 C Lifted Index @700 mb: 7.45 C Showalter Index: 9.35 C Risk: None Total Totals Index: 36.40 C Risk: None Vertical Totals Index: 25.70 C Cross Totals Index: 10.70 C K Index: 9.90 Risk: None Sweat Index: 31.00 Risk: None Energy Index: 1.97 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 13.48 J/kg Max Up Vert Vel: 5.19 m/s Conv Inhibition (B-): 58708.20 J/kg Cap Strength: 10.63 C Lift Cond Lev (LCL): 793.63 mb = 2119.41 m = 6953.36 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 348 at 9 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 1012 98 310 3 2.3 -1.9 | 182 7 0.3 7.3 1 1000 192 350 11 1.9 -10.8 | 2 2 -0.1 -1.6 2 987 305 5 13 -1.1 -13.0 | 40 5 -3.1 -3.7 3 952 610 15 17 -4.4 -16.4 | 41 10 -6.4 -7.2 4 925 850 10 20 -3.5 -19.7 | 27 12 -5.5 -10.5 5 918 914 5 21 -1.8 -20.9 | 18 12 -3.8 -11.7 6 885 1219 360 20 -0.0 -20.0 | 10 11 -2.0 -10.8 7 853 1524 5 14 -1.2 -13.9 | 34 6 -3.2 -4.7 8 850 1553 345 10 2.6 -9.7 | 307 1 0.6 -0.5 9 822 1829 305 11 9.0 -6.3 | 248 8 7.0 2.9 10 792 2134 295 12 10.9 -5.1 | 245 10 8.9 4.1 11 763 2438 305 13 10.6 -7.5 | 259 9 8.7 1.7 12 735 2743 300 13 11.3 -6.5 | 254 10 9.3 2.7 13 708 3048 315 18 12.7 -12.7 | 288 11 10.7 -3.5 14 700 3137 315 18 12.7 -12.7 | 288 11 10.7 -3.5 15 681 3353 330 15 7.5 -13.0 | 304 7 5.5 -3.8 16 655 3658 300 11 9.5 -5.5 | 244 8 7.5 3.7 17 629 3962 295 10 9.1 -4.2 | 235 9 7.1 5.0 18 605 4267 280 10 9.8 -1.7 | 226 11 7.9 7.5 19 560 4877 300 7 6.1 -3.5 | 216 7 4.1 5.7 20 500 5750 270 11 11.0 -0.0 | 224 13 9.0 9.2 21 477 6096 275 14 13.9 -1.2 | 236 14 12.0 8.0 22 458 6401 275 23 22.9 -2.0 | 251 22 20.9 7.2 23 439 6706 255 29 28.0 7.5 | 237 31 26.0 16.7 24 400 7390 245 29 26.3 12.3 | 229 32 24.3 21.5 25 387 7620 240 31 26.8 15.5 | 225 35 24.9 24.7 26 354 8230 250 41 38.5 14.0 | 238 43 36.5 23.2 27 325 8839 255 44 42.5 11.4 | 243 45 40.5 20.6 28 311 9144 255 42 40.6 10.9 | 243 43 38.6 20.1 29 300 9390 250 45 42.3 15.4 | 239 47 40.3 24.6 30 250 10600 245 48 43.5 20.3 | 235 51 41.5 29.5 31 204 11887 230 55 42.1 35.4 | 222 60 40.2 44.6 32 200 12000 230 50 38.3 32.1 | 221 55 36.3 41.3 33 193 12215 235 45 36.9 25.8 | 225 49 34.9 35.0 34 184 12497 230 51 39.1 32.8 | 221 56 37.1 42.0 35 175 12802 250 49 46.0 16.8 | 239 51 44.1 26.0 36 151 13716 265 42 41.8 3.7 | 252 42 39.9 12.9 37 150 13750 260 41 40.4 7.1 | 247 42 38.4 16.3 38 118 15240 260 39 38.4 6.8 | 246 40 36.4 16.0 39 102 16154 250 31 29.1 10.6 | 234 34 27.1 19.8 40 100 16270 260 32 31.5 5.6 | 243 33 29.5 14.8 41 97 16459 260 32 31.5 5.6 | 243 33 29.5 14.8 42 92 16764 250 34 31.9 11.6 | 235 36 30.0 20.8 43 84 17374 275 41 40.8 -3.6 | 262 39 38.9 5.6 44 80 17678 285 31 29.9 -8.0 | 268 28 28.0 1.2 45 72 18288 270 24 24.0 -0.0 | 247 24 22.0 9.2 46 70 18470 240 20 17.3 10.0 | 219 25 15.3 19.2 47 69 18593 245 17 15.4 7.2 | 219 21 13.4 16.4 48 65 18898 265 27 26.9 2.4 | 245 27 24.9 11.6 49 62 19202 280 22 21.7 -3.8 | 255 20 19.7 5.4 50 59 19507 255 26 25.1 6.7 | 235 28 23.1 15.9 51 56 19812 310 16 12.3 -10.3 | 276 10 10.3 -1.1 52 54 20117 310 11 8.4 -7.1 | 252 7 6.4 2.1 53 50 20570 285 11 10.6 -2.8 | 234 11 8.6 6.4 54 49 20726 280 10 9.8 -1.7 | 226 11 7.9 7.5 55 46 21031 285 11 10.6 -2.8 | 234 11 8.6 6.4 56 44 21336 280 10 9.8 -1.7 | 226 11 7.9 7.5 57 40 21946 235 1 0.8 0.6 | 173 10 -1.2 9.8 58 32 23470 35 10 -5.7 -8.2 | 97 8 -7.7 1.0 59 30 23774 55 10 -8.2 -5.7 | 109 11 -10.2 3.5 60 30 23800 95 5 -5.0 0.4 | 144 12 -7.0 9.6 61 29 24079 75 10 -9.7 -2.6 | 120 13 -11.6 6.6 62 27 24384 85 4 -4.0 -0.3 | 146 11 -6.0 8.9 63 25 24994 85 11 -11.0 -1.0 | 123 15 -12.9 8.2 64 24 25298 65 10 -9.1 -4.2 | 114 12 -11.0 5.0 65 23 25603 105 12 -11.6 3.1 | 132 18 -13.6 12.3 66 22 25908 85 13 -13.0 -1.1 | 118 17 -14.9 8.1 67 21 26213 150 10 -5.0 8.7 | 159 19 -7.0 17.9 68 20 26400 155 7 -3.0 6.3 | 162 16 -4.9 15.5 69 18 27127 180 10 0.0 10.0 | 174 19 -2.0 19.2 70 17 27432 215 13 7.5 10.6 | 195 21 5.5 19.9 71 16 27737 115 10 -9.1 4.2 | 141 17 -11.0 13.4 72 14 28651 90 4 -4.0 0.0 | 147 11 -6.0 9.2 73 14 28956 140 10 -6.4 7.7 | 153 19 -8.4 16.9 74 13 29261 155 20 -8.5 18.1 | 159 29 -10.4 27.3 75 12 29566 190 14 2.4 13.8 | 181 23 0.5 23.0 76 12 29870 250 12 11.3 4.1 | 215 16 9.3 13.3 77 11 30175 35 10 -5.7 -8.2 | 97 8 -7.7 1.0 78 10 30970 200 15 5.1 14.1 | 188 24 3.1 23.3 Wind Parameters Mean winds (0-6000m): 317.9 at 12.6 knts Storm direction: 347.9 at 9.4 knts Shear (0-3000m) pos: 3.8 neg: 3.2 tot: 7.0 10-3/s Storm rel Dir Shear (0-3000m): 105.7 deg Storm rel helicity (0-3000m) pos: 29.6 neg: -25.4 tot: 4.2 m^2/s^2 ave: 1.4 10^-3 m/s^2 rel: -0.28 Storm rel vorticity (0-3000m) horiz: 10.7 stream: -3.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.00 Bulk Shear: 13.42 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 5 13 42 5| 16.3 0.0 16.3| 1.9 -0.2 1.6 3.3 -0.51| 23.8-12.1 1000 7 16 30 8| 8.1 2.8 10.9| 1.9 -16.5 -14.6 -14.6 -0.58| 15.3 -8.8 1500 5 16 25 8| 5.4 3.6 9.0| 8.0 -20.7 -12.6 -8.4 -0.50| 15.4 -7.8 2000 355 15 8 6| 4.1 4.8 8.8| 8.0 -24.1 -16.1 -8.0 -0.47| 13.7 -6.5 2500 346 15 343 5| 3.6 3.8 7.4| 12.9 -24.7 -11.8 -4.7 -0.42| 11.5 -4.8 3000 339 15 323 6| 3.8 3.2 7.0| 29.6 -25.4 4.2 1.4 -0.28| 10.7 -3.0 4000 332 14 305 6| 2.9 3.1 5.9| 34.5 -43.7 -9.2 -2.3 -0.32| 9.9 -3.2 5000 326 13 286 6| 2.3 2.4 4.8| 35.8 -49.2 -13.3 -2.7 -0.32| 8.6 -2.7 6000 318 13 271 6| 1.9 2.5 4.4| 47.3 -49.4 -2.1 -0.4 -0.25| 7.8 -2.0 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20250423.12.gif