UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041700.upa.cvt Date: 0000Z 17 APR 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 17 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 1004 98 14.4 -4.6 26 19.0 6.2 315 10 287.2 287.7 279.1 295.1 2.70 1 1000 121 13.8 -6.2 24 20.0 5.5 330 13 287.0 287.4 278.6 294.0 2.40 2 925 769 7.4 -7.6 34 15.0 1.5 315 17 286.9 287.3 278.4 293.7 2.33 3 908 921 6.0 -8.0 36 14.0 0.6 305 20 287.0 287.4 278.5 293.7 2.30 4 850 1457 1.0 -9.0 47 10.0 -2.6 300 24 287.2 287.6 278.6 293.9 2.27 5 831 1638 -0.9 -8.9 55 8.0 -3.8 295 26 287.1 287.5 278.6 293.9 2.34 6 768 2260 -6.3 -12.3 62 6.0 -8.2 287 32 287.8 288.1 278.4 293.5 1.93 7 749 2456 -8.1 -15.1 57 7.0 -10.1 291 36 287.9 288.2 278.0 292.6 1.58 8 741 2539 -8.5 -18.5 44 10.0 -11.1 296 38 288.3 288.5 277.6 292.0 1.20 9 740 2549 -8.5 -18.5 44 10.0 -11.1 297 38 288.5 288.7 277.7 292.1 1.20 10 739 2560 -8.1 -22.1 31 14.0 -11.4 298 38 289.0 289.2 277.5 291.7 0.88 11 730 2655 -7.9 -29.9 15 22.0 -12.1 304 39 290.2 290.3 277.4 291.6 0.44 12 700 2980 -9.7 -35.7 10 26.0 -13.9 315 40 291.7 291.8 277.9 292.6 0.26 13 653 3513 -13.7 -42.7 7 29.0 -17.3 315 38 293.1 293.1 278.4 293.5 0.14 14 628 3810 -14.5 -54.5 2 40.0 -18.3 314 40 295.5 295.5 279.4 295.6 0.04 15 622 3883 -14.3 -54.3 2 40.0 -18.1 313 42 296.5 296.5 279.8 296.6 0.04 16 563 4636 -16.5 -52.5 3 36.0 -20.0 310 58 302.5 302.5 282.4 302.7 0.05 17 542 4922 -17.9 -50.9 4 33.0 -21.2 310 63 304.1 304.1 283.1 304.4 0.07 18 500 5520 -22.5 -48.5 7 26.0 -24.9 310 64 305.6 305.6 283.8 305.9 0.09 19 492 5638 -23.5 -50.5 6 27.0 -25.8 310 65 305.8 305.8 283.8 306.1 0.08 20 436 6510 -28.9 -52.9 8 24.0 -30.6 310 72 309.7 309.7 285.3 309.9 0.06 21 429 6626 -29.5 -51.5 10 22.0 -31.0 310 73 310.4 310.4 285.5 310.7 0.08 22 400 7120 -33.7 -50.7 16 17.0 -34.8 310 76 311.2 311.2 285.9 311.5 0.09 23 382 7441 -36.1 -48.1 28 12.0 -36.9 307 77 312.2 312.2 286.2 312.6 0.13 24 374 7588 -37.1 -52.1 20 15.0 -37.9 305 77 312.7 312.7 286.4 313.0 0.08 25 360 7850 -39.3 -48.3 38 9.0 -39.8 301 76 313.2 313.2 286.6 313.7 0.13 26 349 8062 -40.9 -51.9 30 11.0 -41.4 301 79 313.8 313.9 286.8 314.2 0.09 27 343 8180 -41.7 -51.7 33 10.0 -42.2 301 82 314.3 314.3 287.0 314.7 0.09 28 335 8340 -42.3 -58.3 16 16.0 -42.9 302 87 315.6 315.6 287.3 315.8 0.04 29 333 8380 -42.5 -57.5 18 15.0 -43.0 302 88 315.9 315.9 287.5 316.1 0.05 30 330 8441 -42.7 -55.7 23 13.0 -43.2 303 89 316.4 316.4 287.6 316.7 0.06 31 328 8482 -42.7 -60.7 12 18.0 -43.3 303 90 317.0 317.0 287.8 317.1 0.03 32 321 8628 -43.3 -61.3 12 18.0 -43.9 304 94 318.1 318.1 288.2 318.2 0.03 33 319 8670 -43.5 -61.5 12 18.0 -44.0 304 95 318.4 318.4 288.3 318.5 0.03 34 306 8948 -45.7 -59.7 19 14.0 -46.1 305 102 319.1 319.1 288.5 319.3 0.04 35 300 9080 -46.5 -62.5 15 16.0 -46.9 305 104 319.8 319.8 288.7 319.9 0.03 36 293 9235 -47.3 -64.3 13 17.0 -47.7 305 103 320.8 320.9 289.0 320.9 0.02 37 260 10010 -53.5 -66.6 19 13.1 -53.7 305 107 322.9 322.9 289.6 323.0 0.02 38 259 10034 -53.7 -66.7 19 13.0 -53.9 305 107 322.9 323.0 289.7 323.0 0.02 39 256 10109 -54.1 -68.1 16 14.0 -54.3 305 104 323.4 323.4 289.8 323.5 0.02 40 250 10260 -53.7 -67.7 16 14.0 -53.9 305 93 326.2 326.2 290.6 326.3 0.02 41 246 10364 -52.5 -69.5 11 17.0 -52.8 304 92 329.5 329.5 291.6 329.6 0.01 42 221 11052 -55.3 -74.3 8 19.0 -55.5 294 83 335.5 335.5 293.2 335.5 0.01 43 219 11110 -55.7 -74.7 8 19.0 -55.9 294 82 335.7 335.7 293.3 335.8 0.01 44 200 11690 -53.9 -78.9 3 25.0 -54.2 285 75 347.4 347.4 296.1 347.4 0.00 45 174 12589 -51.1 -82.1 1 31.0 -51.6 290 72 366.1 366.1 299.9 366.2 0.00 46 165 12932 -52.5 -82.5 1 30.0 -52.9 293 67 369.4 369.4 300.5 369.4 0.00 47 159 13172 -50.7 -82.7 1 32.0 -51.2 289 65 376.4 376.4 301.6 376.4 0.00 48 153 13422 -52.3 -82.3 2 30.0 -52.8 285 63 377.8 377.8 301.9 377.8 0.00 49 150 13550 -51.7 -82.7 1 31.0 -52.2 290 65 381.0 381.0 302.4 381.0 0.00 50 148 13637 -50.7 -82.7 1 32.0 -51.3 290 64 384.2 384.2 302.9 384.2 0.00 51 126 14674 -54.5 -84.5 1 30.0 -54.9 290 58 395.4 395.4 304.6 395.4 0.00 52 117 15150 -53.1 -84.1 1 31.0 -53.7 290 56 406.5 406.5 306.0 406.5 0.00 53 100 16150 -57.3 -85.3 2 28.0 -57.7 285 53 417.0 417.0 307.4 417.0 0.00 54 97 16343 -58.3 -86.3 2 28.0 -58.7 285 53 418.7 418.7 307.6 418.7 0.00 55 85 17175 -59.5 -86.5 2 27.0 -59.9 279 48 432.4 432.4 309.1 432.4 0.00 56 82 17402 -57.3 -86.3 1 29.0 -57.8 281 47 441.4 441.4 310.0 441.4 0.00 57 81 17480 -58.3 -86.3 2 28.0 -58.7 282 47 440.9 440.9 310.0 440.9 0.00 58 78 17719 -57.1 -86.1 1 29.0 -57.6 284 46 448.1 448.1 310.7 448.2 0.00 59 74 18053 -57.9 -86.9 1 29.0 -58.4 288 44 453.3 453.3 311.1 453.3 0.00 60 73 18140 -54.9 -85.9 1 31.0 -55.6 289 44 461.4 461.4 311.9 461.4 0.00 61 71 18318 -53.5 -85.5 1 32.0 -54.4 293 36 468.0 468.0 312.5 468.0 0.00 62 70 18410 -53.5 -85.5 1 32.0 -54.4 300 15 469.9 469.9 312.6 469.9 0.00 63 68 18595 -53.9 -84.9 1 31.0 -54.8 300 15 473.0 473.0 312.9 473.0 0.00 64 58 19592 -61.7 -88.7 2 27.0 -62.1 206 18 477.4 477.4 313.2 477.4 0.00 65 57 19700 -57.5 -87.5 1 30.0 -58.2 213 23 489.3 489.3 314.2 489.3 0.00 66 54 20042 -55.1 -86.1 1 31.0 -56.1 247 29 502.4 502.4 315.1 502.5 0.00 67 50 20530 -56.1 -86.1 1 30.0 -57.0 240 14 511.3 511.3 315.7 511.3 0.00 68 43 21483 -58.5 -87.5 1 29.0 -59.3 248 18 527.9 527.9 316.8 527.9 0.00 69 40 21942 -54.5 -86.5 1 32.0 -55.8 270 18 549.0 549.0 318.1 549.0 0.01 70 33 23166 -57.3 -87.3 1 30.0 -58.5 50 10 572.6 572.6 319.3 572.6 0.01 71 31 23562 -56.1 -87.1 1 31.0 -57.5 70 10 586.2 586.2 320.0 586.2 0.01 72 30 23770 -57.3 -87.3 1 30.0 -58.5 35 9 588.4 588.4 320.0 588.5 0.01 73 29 23984 -57.7 -87.7 1 30.0 -58.9 58 7 593.1 593.1 320.3 593.1 0.01 74 20 26360 -52.5 -85.5 1 33.0 -55.3 350 9 675.5 675.5 323.6 675.6 0.01 75 17 27415 -50.5 -84.5 1 34.0 -54.2 35 7 714.0 714.0 324.8 714.2 0.02 76 17 27415 -50.7 -84.7 1 34.0 -54.4 35 7 713.4 713.4 324.8 713.5 0.02 77 16 27812 -48.5 -83.5 1 35.0 -53.1 352 12 733.0 733.1 325.4 733.2 0.02 78 14 28690 -48.9 -83.9 1 35.0 -53.7 13 10 760.2 760.2 326.2 760.4 0.02 79 14 28690 -46.5 -83.5 1 37.0 -52.2 13 10 768.4 768.4 326.4 768.6 0.03 80 13 29181 -46.9 -82.9 1 36.0 -52.8 77 10 783.4 783.4 326.8 783.7 0.03 81 12 29714 -44.7 -82.7 1 38.0 -51.8 93 10 809.4 809.4 327.5 809.7 0.04 82 11 30295 -46.1 -83.1 1 37.0 -52.9 73 11 824.7 824.7 327.8 825.0 0.04 83 10 30930 -44.9 -82.9 1 38.0 -52.7 300 14 851.9 852.0 328.4 852.3 0.04 84 9.7 31133 -44.9 -82.9 1 38.0 -52.8 296 14 859.4 859.4 328.6 859.8 0.04 85 7.3 33061 -37.5 -79.5 0 42.0 -50.8 260 17 962.4 962.5 330.6 963.5 0.10 86 7.0 33350 -38.3 -80.3 0 42.0 -51.4 255 17 970.7 970.8 330.7 971.7 0.09 87 6.9 33449 -38.1 -80.1 0 42.0 -51.4 975.5 975.6 330.8 976.6 0.09 TRP 256 10109 -54.1 -68.1 16 14.0 -54.3 305 104 323.4 323.4 289.8 323.5 0.02 WND 260 10010 -53.5 -66.6 19 13.1 -53.7 305 107 322.9 322.9 289.6 323.0 0.02 Sounding variables and indices 1000-500 mb thick: 5399.00 m Freezing level: 840.00 mb = 1552.22 m = 5092.53 ft Wetbulb zero: 897.10 mb = 1019.32 m = 3344.19 ft Precipitable water: 0.26 inches Sfc-500 mean rel hum: 23.02 % Est. max temperature: 14.36 C = 57.84 F Sfc-Lift cond lev (LCL): 752.37 mb = 2420.65 m = 7941.68 ft T: -7.78 C 700-500 lapse rate: 5.04 C/km ThetaE index: 1.93 C Layer 768.0- 740.0 mb Conv cond level (CCL): 680.17 mb = 3200.42 m = 10499.94 ft Mean mixing ratio: 2.36 g/kg Conv temperature: 19.48 C = 67.07 F Cap Strength: 10.44 C Lifted Index: 10.88 C Risk: None Lifted Index @300 mb: 18.46 C Lifted Index @700 mb: 3.43 C Showalter Index: 10.85 C Risk: None Total Totals Index: 37.00 C Risk: None Vertical Totals Index: 23.50 C Cross Totals Index: 13.50 C K Index: -11.50 Risk: None Sweat Index: 112.00 Risk: None Energy Index: 2.53 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.23 J/kg Max Up Vert Vel: 0.68 m/s Conv Inhibition (B-): 60288.31 J/kg Cap Strength: 10.82 C Lift Cond Lev (LCL): 735.18 mb = 2600.14 m = 8530.53 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 338 at 31 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 98 315 10 7.1 -7.1 | 169 22 -4.4 21.7 1 1000 121 330 13 6.5 -11.3 | 164 18 -4.9 17.5 2 978 305 330 17 8.5 -14.7 | 168 14 -2.9 14.0 3 943 610 320 16 10.3 -12.3 | 176 17 -1.2 16.5 4 925 769 315 17 12.0 -12.0 | 182 17 0.6 16.7 5 909 914 305 20 16.4 -11.5 | 196 18 4.9 17.3 6 875 1219 300 25 21.7 -12.5 | 212 19 10.2 16.3 7 850 1457 300 24 20.8 -12.0 | 209 19 9.3 16.8 8 811 1829 290 29 27.3 -9.9 | 220 25 15.8 18.8 9 780 2134 285 30 29.0 -7.8 | 220 27 17.5 21.0 10 750 2438 290 36 33.8 -12.3 | 234 28 22.4 16.4 11 721 2743 310 41 31.4 -26.4 | 263 20 20.0 2.4 12 700 2980 315 40 28.3 -28.3 | 268 17 16.8 0.5 13 640 3658 315 37 26.2 -26.2 | 260 15 14.7 2.6 14 590 4267 310 52 39.8 -33.4 | 279 29 28.4 -4.7 15 544 4877 310 63 48.3 -40.5 | 288 39 36.8 -11.7 16 500 5520 310 64 49.0 -41.1 | 288 40 37.6 -12.4 17 461 6096 310 70 53.6 -45.0 | 291 45 42.2 -16.2 18 400 7120 310 76 58.2 -48.9 | 293 51 46.8 -20.1 19 372 7620 305 77 63.1 -44.2 | 287 54 51.6 -15.4 20 355 7925 300 76 65.8 -38.0 | 280 55 54.4 -9.2 21 311 8839 305 100 81.9 -57.4 | 292 76 70.5 -28.6 22 300 9080 305 104 85.2 -59.7 | 293 80 73.8 -30.9 23 297 9144 305 103 84.4 -59.1 | 293 79 72.9 -30.3 24 260 10010 305 107 87.6 -61.4 | 293 83 76.2 -32.6 25 258 10058 305 107 87.6 -61.4 | 293 83 76.2 -32.6 26 256 10109 305 104 85.2 -59.7 | 293 80 73.8 -30.9 27 250 10260 305 93 76.2 -53.3 | 291 69 64.7 -24.6 28 235 10668 300 88 76.2 -44.0 | 283 67 64.8 -15.2 29 200 11690 285 75 72.4 -19.4 | 261 62 61.0 9.3 30 185 12192 280 79 77.8 -13.7 | 257 68 66.4 15.0 31 168 12802 295 68 61.6 -28.7 | 270 50 50.2 0.0 32 153 13411 285 63 60.9 -16.3 | 256 51 49.4 12.5 33 150 13550 290 65 61.1 -22.2 | 263 50 49.6 6.5 34 115 15240 290 55 51.7 -18.8 | 256 41 40.2 9.9 35 100 16150 285 53 51.2 -13.7 | 249 43 39.8 15.0 36 95 16459 285 53 51.2 -13.7 | 249 43 39.8 15.0 37 91 16764 275 50 49.8 -4.4 | 238 45 38.4 24.4 38 71 18288 290 43 40.4 -14.7 | 244 32 29.0 14.1 39 70 18410 300 15 13.0 -7.5 | 184 21 1.6 21.3 40 68 18593 300 15 13.0 -7.5 | 184 21 1.6 21.3 41 65 18898 310 13 10.0 -8.4 | 176 20 -1.5 20.4 42 62 19202 225 10 7.1 7.1 | 173 36 -4.4 35.8 43 59 19507 200 15 5.1 14.1 | 172 43 -6.3 42.9 44 56 19812 220 27 17.4 20.7 | 187 50 5.9 49.4 45 53 20117 255 29 28.0 7.5 | 205 40 16.6 36.3 46 51 20422 275 13 13.0 -1.1 | 183 28 1.5 27.6 47 50 20530 240 14 12.1 7.0 | 181 36 0.7 35.8 48 48 20726 235 14 11.5 8.0 | 180 37 0.0 36.8 49 46 21031 255 10 9.7 2.6 | 177 31 -1.8 31.3 50 44 21336 250 18 16.9 6.2 | 189 35 5.5 34.9 51 42 21641 245 18 16.3 7.6 | 188 37 4.9 36.4 52 38 22250 295 19 17.2 -8.0 | 196 22 5.8 20.7 53 36 22555 15 12 -3.1 -11.6 | 140 22 -14.5 17.2 54 35 22860 15 10 -2.6 -9.7 | 144 24 -14.0 19.1 55 31 23470 85 10 -10.0 -0.9 | 143 35 -21.4 27.9 56 30 23770 35 9 -5.2 -7.4 | 142 27 -16.6 21.4 57 27 24384 100 3 -3.0 0.5 | 154 33 -14.4 29.3 58 23 25603 140 10 -6.4 7.7 | 154 41 -17.9 36.4 59 20 26213 240 2 1.7 1.0 | 162 31 -9.7 29.8 60 20 26360 350 9 1.6 -8.9 | 154 22 -9.9 19.9 61 19 26822 345 10 2.6 -9.7 | 155 21 -8.8 19.1 62 17 27432 35 7 -4.0 -5.7 | 146 28 -15.5 23.0 63 16 27737 350 14 2.4 -13.8 | 149 17 -9.0 15.0 64 15 28042 355 7 0.6 -7.0 | 154 24 -10.8 21.8 65 15 28346 340 20 6.8 -18.8 | 155 11 -4.6 10.0 66 14 28651 5 10 -0.9 -10.0 | 147 22 -12.3 18.8 67 13 29261 85 10 -10.0 -0.9 | 143 35 -21.4 27.9 68 11 30175 100 10 -9.8 1.7 | 145 37 -21.3 30.5 69 10 30930 300 14 12.1 -7.0 | 182 22 0.7 21.8 70 7 33350 255 17 16.4 4.4 | 189 34 5.0 33.2 Wind Parameters Mean winds (0-6000m): 308.3 at 41.3 knts Storm direction: 338.3 at 31.0 knts Shear (0-3000m) pos: 4.3 neg: 3.3 tot: 7.6 10-3/s Storm rel Dir Shear (0-3000m): 98.4 deg Storm rel helicity (0-3000m) pos: 214.5 neg: -8.9 tot: 205.6 m^2/s^2 ave: 68.5 10^-3 m/s^2 rel: 0.64 Storm rel vorticity (0-3000m) horiz: 9.7 stream: 6.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.00 Bulk Shear: 95.73 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 ------------------------------------------------------------------------------- 500 327 16 170 16| 6.3 0.0 6.3| 11.0 -5.0 6.0 12.0 0.16| 11.0 1.8 1000 317 17 181 16| 3.2 4.8 7.9| 53.1 -5.0 48.1 48.1 0.54| 10.4 5.6 1500 310 20 193 17| 2.1 4.5 6.6| 69.6 -7.1 62.5 41.7 0.55| 8.5 4.7 2000 303 22 203 18| 1.6 4.9 6.5| 83.3 -7.5 75.8 37.9 0.50| 8.1 4.1 2500 299 24 211 19| 3.8 3.9 7.7|172.0 -7.5 164.5 65.8 0.63| 9.3 5.9 3000 302 27 219 18| 4.3 3.3 7.6|214.5 -8.9 205.6 68.5 0.64| 9.7 6.2 4000 306 30 231 17| 3.3 3.4 6.7|241.0 -16.1 224.9 56.2 0.57| 8.9 5.1 5000 308 36 248 18| 2.6 4.1 6.7|293.6 -16.1 277.5 55.5 0.54| 8.8 4.7 6000 308 41 261 21| 2.2 4.0 6.1|319.5 -16.1 303.4 50.6 0.52| 7.9 4.1 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20250417.00.gif