UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100900.upa.cvt Date: 0000Z 9 OCT 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 9 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 1012 98 18.8 4.8 40 14.0 11.3 335 8 291.0 291.9 283.9 306.3 5.33 1 1008 129 18.6 3.6 37 15.0 10.7 335 11 291.1 292.0 283.5 305.3 4.91 2 1000 192 17.8 3.8 39 14.0 10.4 335 17 291.0 291.8 283.5 305.4 5.02 3 925 852 12.0 2.0 50 10.0 6.9 340 27 291.6 292.4 283.5 305.4 4.78 4 850 1552 5.4 0.9 73 4.5 3.2 335 21 291.8 292.7 283.7 305.7 4.80 5 831 1736 3.6 -0.4 75 4.0 1.7 335 24 291.8 292.6 283.3 304.8 4.47 6 829 1755 3.6 -0.8 73 4.4 1.5 335 24 292.0 292.8 283.2 304.7 4.35 7 826 1785 4.0 -4.0 56 8.0 0.5 335 24 292.7 293.3 282.5 302.9 3.44 8 819 1854 3.6 -4.4 56 8.0 0.2 336 24 293.0 293.6 282.5 303.0 3.36 9 817 1874 3.8 -6.2 48 10.0 -0.3 337 24 293.4 294.0 282.3 302.2 2.94 10 814 1904 4.8 -13.2 26 18.0 -1.6 339 24 294.8 295.1 281.3 300.0 1.70 11 811 1934 6.6 -25.4 8 32.0 -2.3 340 23 297.0 297.1 280.9 299.0 0.60 12 809 1954 7.8 -36.2 3 44.0 -2.3 341 23 298.5 298.5 281.0 299.2 0.21 13 806 1985 8.0 -39.0 2 47.0 -2.3 343 22 299.0 299.1 281.1 299.6 0.16 14 796 2087 7.8 -40.2 2 48.0 -2.5 348 20 299.9 299.9 281.5 300.4 0.14 15 745 2629 4.0 -43.0 2 47.0 -5.1 331 22 301.5 301.5 282.1 301.9 0.12 16 715 2963 4.8 -34.2 4 39.0 -4.6 312 25 305.9 306.0 284.2 307.0 0.30 17 700 3135 3.4 -30.6 6 34.0 -5.3 305 27 306.2 306.3 284.5 307.7 0.43 18 657 3644 -0.7 -28.7 10 28.0 -7.8 295 29 307.2 307.3 284.9 309.1 0.54 19 620 4103 -3.7 -36.7 6 33.0 -10.4 291 31 308.9 309.0 285.2 309.9 0.27 20 587 4532 -5.5 -48.5 2 43.0 -12.1 290 32 311.7 311.7 286.1 312.0 0.08 21 546 5094 -9.9 -49.9 2 40.0 -15.3 307 30 313.0 313.0 286.5 313.3 0.07 22 532 5294 -10.5 -52.5 2 42.0 -15.9 308 33 314.6 314.6 287.0 314.8 0.06 23 527 5366 -10.1 -52.1 2 42.0 -15.7 311 35 315.9 315.9 287.5 316.2 0.06 24 500 5770 -11.3 -53.3 2 42.0 -16.7 295 38 319.3 319.3 288.6 319.5 0.05 25 496 5832 -11.5 -53.5 2 42.0 -16.9 304 39 319.8 319.8 288.7 320.0 0.05 26 409 7286 -21.7 -53.7 4 32.0 -24.8 307 49 324.7 324.7 290.3 325.0 0.06 27 400 7450 -23.1 -54.1 4 31.0 -26.0 305 52 325.0 325.0 290.3 325.2 0.06 28 313 9189 -37.5 -63.5 5 26.0 -38.6 294 58 328.5 328.5 291.3 328.6 0.02 29 300 9480 -39.5 -64.5 5 25.0 -40.4 290 64 329.7 329.7 291.6 329.8 0.02 30 284 9855 -42.3 -64.5 7 22.2 -43.0 285 65 330.8 330.8 292.0 330.9 0.02 31 257 10526 -47.5 -64.5 12 17.0 -48.0 289 60 332.8 332.8 292.5 332.9 0.03 32 255 10578 -47.1 -65.1 11 18.0 -47.6 289 59 334.1 334.1 292.9 334.2 0.02 33 250 10710 -47.7 -64.7 12 17.0 -48.1 275 53 335.2 335.2 293.1 335.3 0.03 34 240 10977 -50.1 -65.1 15 15.0 -50.4 270 52 335.5 335.5 293.2 335.6 0.03 35 218 11598 -52.3 -69.3 11 17.0 -52.6 260 63 341.4 341.4 294.7 341.5 0.02 36 216 11658 -51.9 -69.9 10 18.0 -52.2 260 63 342.9 343.0 295.0 343.0 0.01 37 200 12150 -55.3 -71.3 12 16.0 -55.5 260 60 345.2 345.2 295.6 345.2 0.01 38 192 12410 -56.5 -73.5 10 17.0 -56.7 262 61 347.3 347.3 296.0 347.4 0.01 39 190 12476 -56.3 -73.3 10 17.0 -56.5 263 61 348.7 348.7 296.4 348.7 0.01 40 184 12679 -58.1 -74.1 11 16.0 -58.3 265 62 349.0 349.0 296.4 349.0 0.01 41 174 13032 -55.7 -78.7 4 23.0 -56.0 269 64 358.6 358.6 298.4 358.6 0.00 42 150 13970 -58.9 -81.9 4 23.0 -59.1 275 46 368.6 368.6 300.3 368.6 0.00 43 149 14012 -58.9 -81.9 4 23.0 -59.1 274 47 369.3 369.3 300.4 369.3 0.00 44 142 14315 -57.3 -83.3 2 26.0 -57.6 267 50 377.2 377.2 301.8 377.2 0.00 45 106 16126 -65.9 -84.9 5 19.0 -66.0 285 38 393.8 393.8 304.3 393.8 0.00 46 105 16183 -66.1 -85.1 5 19.0 -66.2 287 37 394.5 394.5 304.5 394.5 0.00 47 100 16480 -64.9 -85.9 4 21.0 -65.1 285 29 402.3 402.3 305.5 402.3 0.00 48 98 16603 -65.7 -85.7 5 20.0 -65.8 285 29 403.1 403.1 305.6 403.1 0.00 49 93 16923 -64.5 -86.5 3 22.0 -64.7 282 34 411.6 411.6 306.7 411.6 0.00 50 88 17260 -65.7 -86.7 4 21.0 -65.8 289 32 415.7 415.7 307.2 415.7 0.00 51 83 17618 -63.1 -87.1 3 24.0 -63.3 291 19 428.0 428.0 308.6 428.0 0.00 52 79 17921 -64.9 -86.9 3 22.0 -65.1 270 11 430.4 430.4 308.9 430.4 0.00 53 74 18321 -64.3 -87.3 3 23.0 -64.6 291 12 439.8 439.8 309.8 439.8 0.00 54 70 18660 -66.3 -88.3 3 22.0 -66.5 255 12 442.5 442.5 310.1 442.6 0.00 55 69 18747 -66.5 -88.5 3 22.0 -66.7 255 12 443.9 443.9 310.3 444.0 0.00 56 61 19496 -63.3 -88.3 2 25.0 -63.6 275 14 467.0 467.0 312.4 467.0 0.00 57 58 19804 -64.3 -88.3 2 24.0 -64.6 334 17 471.5 471.5 312.8 471.5 0.00 58 51 20589 -64.1 -89.1 2 25.0 -64.4 261 13 489.6 489.7 314.2 489.7 0.00 59 50 20710 -63.5 -88.5 2 25.0 -63.8 235 13 493.8 493.8 314.5 493.9 0.00 60 48 20962 -61.7 -87.7 2 26.0 -62.2 222 12 503.9 503.9 315.2 504.0 0.00 61 46 21226 -62.3 -88.3 2 26.0 -62.8 254 13 508.7 508.7 315.5 508.7 0.00 62 40 22106 -55.3 -85.3 1 30.0 -56.5 297 15 547.0 547.0 317.9 547.0 0.01 63 37 22602 -57.1 -86.1 1 29.0 -58.2 338 13 554.7 554.7 318.3 554.7 0.01 64 30 23940 -54.3 -84.3 1 30.0 -56.0 275 13 596.6 596.6 320.5 596.7 0.01 65 27 24616 -53.9 -83.9 1 30.0 -55.8 313 13 616.0 616.0 321.3 616.1 0.01 66 26 24859 -54.1 -84.1 1 30.0 -56.1 288 8 622.1 622.1 321.6 622.2 0.01 67 21 26241 -50.3 -82.3 1 32.0 -53.6 259 14 672.8 672.8 323.5 672.9 0.02 68 20 26560 -49.7 -81.7 1 32.0 -53.2 265 15 684.0 684.1 323.9 684.2 0.03 69 18 27248 -49.5 -81.5 1 32.0 -53.4 290 15 705.6 705.6 324.6 705.8 0.03 70 17 27620 -51.3 -82.3 1 31.0 -54.8 274 17 711.5 711.5 324.8 711.7 0.03 71 16 28015 -49.9 -81.9 1 32.0 -54.0 270 22 728.5 728.5 325.3 728.7 0.03 72 16 28015 -50.7 -81.7 1 31.0 -54.5 270 22 725.9 725.9 325.3 726.1 0.03 73 13 29379 -46.3 -80.3 1 34.0 -52.4 267 12 785.5 785.5 326.9 786.0 0.05 74 11 30474 -51.7 -82.7 1 31.0 -56.2 252 11 804.3 804.4 327.4 804.7 0.04 75 11 30474 -51.3 -83.3 1 32.0 -56.0 252 11 805.8 805.8 327.4 806.1 0.03 76 11 30474 -46.3 -81.3 1 35.0 -53.0 252 11 823.9 824.0 327.8 824.4 0.05 77 10 31110 -43.9 -78.9 1 35.0 -52.1 315 13 855.7 855.7 328.5 856.5 0.08 78 10 31110 -44.1 -79.1 1 35.0 -52.2 315 13 854.9 855.0 328.5 855.7 0.08 79 7.6 32927 -47.7 -80.7 1 33.0 -55.2 323 8 910.2 910.2 329.7 911.0 0.08 80 7.0 33470 -45.9 -79.9 1 34.0 -54.6 325 7 939.3 939.4 330.2 940.4 0.10 TRP 184 12679 -58.1 -74.1 11 16.0 -58.3 265 62 349.0 349.0 296.4 349.0 0.01 WND 284 9855 -42.3 -64.5 7 22.2 -43.0 285 65 330.8 330.8 292.0 330.9 0.02 Sounding variables and indices 1000-500 mb thick: 5578.00 m Freezing level: 664.34 mb = 3556.80 m = 11669.17 ft Wetbulb zero: 818.33 mb = 1860.47 m = 6103.82 ft Precipitable water: 0.41 inches Sfc-500 mean rel hum: 19.70 % Est. max temperature: 19.62 C = 67.32 F Sfc-Lift cond lev (LCL): 820.80 mb = 1836.04 m = 6023.67 ft T: 3.70 C 700-500 lapse rate: 5.58 C/km ThetaE index: 3.98 C Layer 817.0- 809.0 mb Conv cond level (CCL): 628.82 mb = 3990.91 m = 13093.38 ft Mean mixing ratio: 4.90 g/kg Conv temperature: 36.42 C = 97.56 F Cap Strength: 12.03 C Lifted Index: 13.96 C Risk: None Lifted Index @300 mb: 17.37 C Lifted Index @700 mb: 9.83 C Showalter Index: 13.76 C Risk: None Total Totals Index: 28.90 C Risk: None Vertical Totals Index: 16.70 C Cross Totals Index: 12.20 C K Index: -16.40 Risk: None Sweat Index: 90.80 Risk: None Energy Index: 2.98 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.30 J/kg Max Up Vert Vel: 1.61 m/s Conv Inhibition (B-): 61674.97 J/kg Cap Strength: 13.80 C Lift Cond Lev (LCL): 802.25 mb = 2023.01 m = 6637.11 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 345 at 21 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 98 335 8 3.4 -7.3 | 170 13 -2.1 12.7 1 1000 192 335 17 7.2 -15.4 | 200 5 1.7 4.6 2 987 305 340 21 7.2 -19.7 | 262 2 1.7 0.2 3 952 610 340 26 8.9 -24.4 | 323 6 3.4 -4.5 4 925 852 340 27 9.2 -25.4 | 325 7 3.7 -5.4 5 918 914 340 27 9.2 -25.4 | 325 7 3.7 -5.4 6 885 1219 340 24 8.2 -22.6 | 314 4 2.7 -2.6 7 850 1552 335 21 8.9 -19.0 | 254 3 3.4 0.9 8 822 1829 335 25 10.6 -22.7 | 298 6 5.1 -2.7 9 791 2134 350 19 3.3 -18.7 | 120 3 -2.2 1.3 10 762 2438 350 22 3.8 -21.7 | 45 2 -1.7 -1.7 11 734 2743 320 22 14.1 -16.9 | 250 9 8.6 3.1 12 700 3135 305 27 22.1 -15.5 | 255 17 16.6 4.5 13 655 3658 295 29 26.3 -12.3 | 250 22 20.8 7.7 14 606 4267 290 32 30.1 -10.9 | 250 26 24.6 9.0 15 583 4572 290 32 30.1 -10.9 | 250 26 24.6 9.0 16 560 4877 310 31 23.7 -19.9 | 270 18 18.2 0.0 17 539 5182 305 30 24.6 -17.2 | 262 19 19.1 2.8 18 518 5486 315 39 27.6 -27.6 | 289 23 22.1 -7.6 19 500 5770 295 38 34.4 -16.1 | 262 29 28.9 3.9 20 499 5791 305 40 32.8 -22.9 | 276 27 27.3 -3.0 21 479 6096 300 34 29.4 -17.0 | 263 24 23.9 3.0 22 424 7010 310 44 33.7 -28.3 | 286 29 28.2 -8.3 23 400 7450 305 52 42.6 -29.8 | 285 38 37.1 -9.9 24 390 7620 305 53 43.4 -30.4 | 285 39 37.9 -10.4 25 374 7925 295 59 53.5 -24.9 | 276 48 48.0 -5.0 26 315 9144 295 57 51.7 -24.1 | 275 46 46.1 -4.1 27 300 9480 290 64 60.1 -21.9 | 272 55 54.6 -1.9 28 284 9855 285 65 62.8 -16.8 | 267 57 57.3 3.1 29 276 10058 285 65 62.8 -16.8 | 267 57 57.3 3.1 30 252 10668 290 58 54.5 -19.8 | 270 49 49.0 0.1 31 250 10710 275 53 52.8 -4.6 | 252 50 47.3 15.3 32 240 10973 270 52 52.0 -0.0 | 247 51 46.5 20.0 33 218 11582 260 63 62.0 10.9 | 241 64 56.5 30.9 34 200 12150 260 60 59.1 10.4 | 240 62 53.6 30.4 35 184 12679 265 62 61.8 5.4 | 246 62 56.2 25.4 36 172 13106 270 64 64.0 -0.0 | 251 62 58.5 20.0 37 156 13716 280 46 45.3 -8.0 | 253 42 39.8 12.0 38 150 13970 275 46 45.8 -4.0 | 248 43 40.3 16.0 39 135 14630 260 54 53.2 9.4 | 238 56 47.7 29.3 40 122 15240 260 49 48.3 8.5 | 236 51 42.7 28.5 41 100 16459 295 34 30.8 -14.4 | 258 26 25.3 5.6 42 100 16480 285 29 28.0 -7.5 | 241 26 22.5 12.5 43 95 16764 285 29 28.0 -7.5 | 241 26 22.5 12.5 44 91 17069 280 39 38.4 -6.8 | 248 35 32.9 13.2 45 86 17374 295 28 25.4 -11.8 | 248 21 19.9 8.1 46 82 17678 290 17 16.0 -5.8 | 216 18 10.5 14.2 47 78 17983 265 10 10.0 0.9 | 192 21 4.4 20.8 48 74 18288 290 12 11.3 -4.1 | 200 17 5.8 15.9 49 71 18593 300 12 10.4 -6.0 | 199 15 4.9 14.0 50 70 18660 255 12 11.6 3.1 | 195 24 6.1 23.1 51 67 18898 255 12 11.6 3.1 | 195 24 6.1 23.1 52 64 19202 285 10 9.7 -2.6 | 193 18 4.1 17.4 53 61 19507 275 14 13.9 -1.2 | 204 21 8.4 18.7 54 58 19812 335 17 7.2 -15.4 | 200 5 1.7 4.6 55 55 20117 5 13 -1.1 -13.0 | 137 10 -6.6 7.0 56 50 20710 235 13 10.6 7.5 | 191 28 5.1 27.4 57 50 20726 190 10 1.7 9.8 | 173 30 -3.8 29.8 58 48 21031 230 13 10.0 8.4 | 189 29 4.4 28.3 59 45 21336 265 13 13.0 1.1 | 199 22 7.4 21.1 60 43 21641 285 21 20.3 -5.4 | 225 21 14.8 14.5 61 41 21946 285 15 14.5 -3.9 | 209 18 9.0 16.1 62 39 22250 305 15 12.3 -8.6 | 211 13 6.8 11.4 63 36 22860 360 12 -0.0 -12.0 | 145 10 -5.5 8.0 64 32 23470 270 12 12.0 -0.0 | 198 21 6.5 20.0 65 31 23774 260 14 13.8 2.4 | 200 24 8.3 22.4 66 30 23940 275 13 13.0 -1.1 | 202 20 7.4 18.8 67 29 24079 275 19 18.9 -1.7 | 216 23 13.4 18.3 68 28 24384 290 15 14.1 -5.1 | 210 17 8.6 14.8 69 27 24689 320 13 8.4 -10.0 | 196 10 2.8 10.0 70 25 24994 265 5 5.0 0.4 | 179 20 -0.5 20.4 71 24 25298 245 10 9.1 4.2 | 188 24 3.5 24.2 72 23 25603 260 15 14.8 2.6 | 202 24 9.3 22.6 73 22 25908 285 17 16.4 -4.4 | 215 19 10.9 15.6 74 21 26213 255 14 13.5 3.6 | 199 25 8.0 23.6 75 20 26518 295 17 15.4 -7.2 | 218 16 9.9 12.8 76 20 26560 265 15 14.9 1.3 | 204 23 9.4 21.3 77 19 26822 250 14 13.2 4.8 | 197 26 7.6 24.8 78 18 27127 290 16 15.0 -5.5 | 213 17 9.5 14.5 79 18 27432 290 13 12.2 -4.4 | 203 17 6.7 15.5 80 17 27737 265 19 18.9 1.7 | 212 25 13.4 21.6 81 16 28042 270 22 22.0 -0.0 | 220 26 16.5 20.0 82 15 28346 270 14 14.0 -0.0 | 203 22 8.5 20.0 83 15 28651 275 15 14.9 -1.3 | 207 21 9.4 18.7 84 13 29261 290 20 18.8 -6.8 | 225 19 13.3 13.1 85 13 29566 235 1 0.8 0.6 | 167 21 -4.7 20.5 86 12 29870 190 10 1.7 9.8 | 173 30 -3.8 29.8 87 10 31110 315 13 9.2 -9.2 | 199 11 3.7 10.8 88 7 33470 325 7 4.0 -5.7 | 174 14 -1.5 14.2 Wind Parameters Mean winds (0-6000m): 314.6 at 27.6 knts Storm direction: 344.6 at 20.7 knts Shear (0-3000m) pos: 2.9 neg: 3.3 tot: 6.2 10-3/s Storm rel Dir Shear (0-3000m): 84.6 deg Storm rel helicity (0-3000m) pos: 18.3 neg: -9.7 tot: 8.6 m^2/s^2 ave: 2.9 10^-3 m/s^2 rel: 0.10 Storm rel vorticity (0-3000m) horiz: 10.2 stream: 1.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.06 Bulk Shear: 20.36 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 ------------------------------------------------------------------------------- 500 339 20 239 2| 18.4 0.0 18.4| 12.1 0.0 12.1 24.2 0.58| 19.3 11.1 1000 340 23 305 3| 9.2 0.3 9.5| 12.6 -0.8 11.8 11.8 0.49| 11.2 5.5 1500 339 23 301 3| 6.1 1.6 7.7| 12.7 -3.9 8.8 5.9 0.28| 9.0 2.5 2000 339 23 299 3| 4.3 1.2 5.5| 16.5 -3.9 12.6 6.3 0.39| 9.6 3.7 2500 340 23 303 2| 3.4 1.5 4.9| 16.5 -7.1 9.4 3.8 0.15| 9.6 1.4 3000 336 23 284 4| 2.9 3.3 6.2| 18.3 -9.7 8.6 2.9 0.10| 10.2 1.0 4000 324 24 269 9| 2.1 3.6 5.8| 18.9 -19.3 -0.5 -0.1 0.06| 8.8 0.5 5000 317 26 265 12| 2.4 2.9 5.3| 62.9 -28.2 34.7 6.9 0.12| 8.5 1.0 6000 315 28 268 14| 2.5 2.6 5.1|139.6-126.4 13.1 2.2 0.07| 9.6 0.7 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251009.00.gif