UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102112.upa.cvt Date: 1200Z 21 OCT 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 21 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 1005 98 4.6 3.3 91 1.3 4.0 0 0 277.4 278.2 276.9 290.5 4.82 1 1002 115 6.2 3.6 83 2.6 4.9 255 2 279.2 280.0 278.0 292.7 4.94 2 1000 126 7.0 3.4 78 3.6 5.3 185 3 280.1 281.0 278.4 293.6 4.88 3 995 167 9.0 3.0 66 6.0 6.1 184 6 282.6 283.4 279.5 295.9 4.77 4 992 192 11.0 2.0 54 9.0 6.6 183 8 284.8 285.6 280.2 297.4 4.45 5 972 363 12.8 0.8 44 12.0 7.0 178 15 288.3 289.0 281.4 300.2 4.17 6 933 705 10.6 -0.4 46 11.0 5.4 181 17 289.4 290.1 281.7 300.9 3.98 7 925 777 10.2 -0.8 46 11.0 5.1 190 18 289.7 290.4 281.8 301.0 3.90 8 916 858 9.6 -2.4 43 12.0 4.2 199 16 289.9 290.6 281.4 300.1 3.49 9 910 913 9.6 -4.4 37 14.0 3.5 205 15 290.5 291.0 281.1 299.4 3.03 10 905 958 9.8 -6.2 32 16.0 3.1 211 16 291.1 291.6 280.9 299.0 2.65 11 899 1014 10.4 -13.6 17 24.0 1.7 218 18 292.3 292.6 280.0 296.9 1.49 12 889 1107 10.4 -18.6 11 29.0 0.9 230 20 293.3 293.4 279.7 296.4 0.99 13 879 1201 10.2 -18.8 11 29.0 0.7 243 23 294.0 294.2 280.0 297.1 0.98 14 876 1229 10.0 -11.0 22 21.0 1.9 245 23 294.1 294.4 281.3 299.8 1.88 15 850 1479 9.6 -34.4 3 44.0 -1.0 245 22 296.2 296.2 280.0 297.0 0.24 16 806 1917 6.6 -35.4 3 42.0 -3.0 254 20 297.5 297.6 280.6 298.3 0.23 17 778 2207 6.4 -39.6 2 46.0 -3.4 250 23 300.4 300.4 281.7 300.9 0.16 18 773 2259 6.6 -40.4 2 47.0 -3.4 250 24 301.1 301.2 282.0 301.6 0.15 19 763 2366 6.2 -29.8 5 36.0 -3.2 250 25 301.8 301.9 282.7 303.2 0.42 20 753 2474 5.4 -9.6 33 15.0 -0.7 251 26 302.1 302.5 285.2 309.7 2.45 21 751 2496 5.2 -9.8 33 15.0 -0.9 252 26 302.1 302.5 285.2 309.6 2.42 22 747 2539 4.8 -15.2 22 20.0 -2.3 253 26 302.1 302.4 284.2 307.1 1.57 23 737 2649 4.0 -11.0 33 15.0 -1.9 257 25 302.4 302.8 285.1 309.4 2.24 24 733 2693 3.6 -7.4 44 11.0 -1.1 258 25 302.5 303.0 285.9 311.7 2.99 25 725 2782 3.0 -12.0 32 15.0 -2.7 258 25 302.8 303.1 285.1 309.3 2.10 26 714 2905 2.6 -15.4 25 18.0 -3.7 253 26 303.6 303.9 284.9 308.8 1.61 27 701 3054 1.4 -8.6 47 10.0 -2.7 246 28 303.9 304.4 286.3 312.8 2.85 28 700 3065 1.4 -8.6 47 10.0 -2.7 245 28 304.0 304.6 286.4 312.9 2.85 29 684 3251 1.0 -11.0 40 12.0 -3.7 243 30 305.6 306.1 286.5 313.2 2.41 30 680 3298 1.0 -9.0 47 10.0 -3.1 243 31 306.1 306.6 287.1 315.0 2.84 31 656 3586 0.0 -17.0 26 17.0 -5.8 241 34 308.2 308.4 286.5 313.2 1.54 32 652 3635 0.0 -19.0 22 19.0 -6.2 240 35 308.7 308.9 286.4 313.0 1.31 33 637 3821 -1.3 -21.3 20 20.0 -7.4 238 37 309.3 309.5 286.4 312.9 1.09 34 547 5024 -6.3 -40.3 5 34.0 -12.7 250 51 317.1 317.1 288.1 317.9 0.21 35 546 5038 -6.3 -39.3 5 33.0 -12.7 250 51 317.3 317.3 288.1 318.1 0.23 36 500 5720 -11.3 -39.3 8 28.0 -16.3 250 47 319.3 319.3 288.8 320.2 0.25 37 474 6126 -13.7 -38.7 10 25.0 -18.1 250 48 321.2 321.3 289.5 322.3 0.28 38 452 6485 -16.1 -50.1 4 34.0 -20.3 252 52 322.6 322.6 289.6 322.9 0.09 39 412 7173 -21.3 -45.3 10 24.0 -24.3 254 59 324.5 324.6 290.3 325.2 0.16 40 404 7317 -22.3 -39.3 20 17.0 -24.8 255 60 325.1 325.1 290.6 326.3 0.31 41 400 7390 -22.5 -40.5 18 18.0 -25.1 250 60 325.7 325.8 290.8 326.8 0.28 42 398 7427 -22.7 -35.7 30 13.0 -24.8 251 60 326.0 326.0 291.0 327.6 0.46 43 394 7501 -23.3 -38.3 24 15.0 -25.5 252 61 326.1 326.2 291.0 327.4 0.36 44 392 7538 -23.7 -42.7 16 19.0 -26.1 253 61 326.1 326.1 290.8 326.9 0.23 45 390 7576 -23.9 -38.9 24 15.0 -26.1 254 62 326.3 326.3 291.0 327.5 0.34 46 386 7651 -24.5 -42.5 17 18.0 -26.8 255 62 326.5 326.5 291.0 327.3 0.23 47 377 7823 -25.9 -37.9 32 12.0 -27.6 255 61 326.8 326.9 291.2 328.3 0.39 48 364 8077 -28.1 -45.1 18 17.0 -29.9 255 60 327.2 327.2 291.1 327.9 0.19 49 349 8379 -29.9 -48.9 14 19.0 -31.6 255 59 328.7 328.7 291.5 329.2 0.13 50 342 8523 -30.7 -49.7 14 19.0 -32.3 255 59 329.5 329.6 291.7 330.0 0.12 51 302 9394 -38.5 -51.5 24 13.0 -39.3 255 56 330.5 330.5 292.0 330.9 0.11 52 300 9440 -38.9 -51.9 24 13.0 -39.7 255 56 330.5 330.6 292.0 331.0 0.11 53 288 9718 -41.5 -51.5 33 10.0 -42.1 255 55 330.7 330.7 292.0 331.2 0.12 54 279 9932 -43.5 -50.5 46 7.0 -43.9 255 58 330.8 330.9 292.1 331.4 0.13 55 251 10634 -49.1 -52.9 64 3.8 -49.3 255 70 332.7 332.7 292.6 333.2 0.11 56 250 10660 -49.3 -53.0 65 3.7 -49.4 255 70 332.8 332.8 292.6 333.2 0.11 57 200 12090 -58.1 -69.1 23 11.0 -58.2 255 62 340.8 340.8 294.5 340.8 0.02 58 150 13890 -61.9 -80.9 6 19.0 -62.0 250 47 363.4 363.4 299.4 363.5 0.00 59 144 14143 -63.9 -81.9 7 18.0 -64.0 240 49 364.2 364.2 299.5 364.2 0.00 60 100 16370 -67.3 -87.3 4 20.0 -67.4 235 41 397.7 397.7 304.9 397.7 0.00 61 93 16806 -68.1 -88.1 4 20.0 -68.2 232 42 404.5 404.5 305.8 404.5 0.00 62 89 17072 -65.3 -87.3 3 22.0 -65.5 243 29 415.2 415.2 307.2 415.2 0.00 63 87 17210 -66.3 -87.3 4 21.0 -66.4 221 24 415.9 415.9 307.2 415.9 0.00 64 85 17351 -66.3 -88.3 3 22.0 -66.5 197 19 418.6 418.6 307.6 418.6 0.00 65 82 17570 -63.7 -87.7 2 24.0 -63.9 200 21 428.3 428.3 308.6 428.3 0.00 66 76 18036 -62.9 -87.9 2 25.0 -63.1 210 25 439.4 439.4 309.8 439.4 0.00 67 70 18540 -64.9 -88.9 2 24.0 -65.1 215 22 445.5 445.5 310.4 445.5 0.00 68 62 19286 -61.3 -89.3 1 28.0 -61.7 245 18 469.3 469.3 312.5 469.3 0.00 69 59 19593 -62.7 -89.7 1 27.0 -63.0 219 19 472.8 472.8 312.9 472.8 0.00 70 57 19807 -60.7 -88.7 1 28.0 -61.2 215 10 482.0 482.0 313.6 482.0 0.00 71 54 20142 -61.9 -88.9 2 27.0 -62.3 246 14 486.8 486.8 314.0 486.8 0.00 72 50 20620 -60.1 -88.1 1 28.0 -60.7 295 6 501.9 501.9 315.1 501.9 0.00 73 45 21273 -62.7 -89.7 1 27.0 -63.1 149 3 510.9 510.9 315.7 510.9 0.00 74 43 21554 -60.9 -88.9 1 28.0 -61.5 161 8 522.0 522.0 316.4 522.0 0.00 75 33 23211 -57.7 -87.7 1 30.0 -58.8 250 10 571.5 571.5 319.2 571.6 0.01 76 32 23405 -59.1 -89.1 1 30.0 -60.0 242 10 572.9 572.9 319.3 572.9 0.00 77 30 23810 -58.3 -88.3 1 30.0 -59.4 235 17 585.7 585.7 319.9 585.7 0.01 78 26 24709 -57.5 -88.5 1 31.0 -58.9 270 25 612.4 612.4 321.2 612.5 0.01 79 24 25210 -59.5 -88.5 1 29.0 -60.7 272 27 620.8 620.8 321.5 620.9 0.01 80 23 25476 -58.7 -88.7 1 30.0 -60.0 274 24 630.8 630.8 321.9 630.8 0.01 81 21 26050 -55.1 -87.1 1 32.0 -57.2 286 29 658.3 658.3 323.0 658.3 0.01 82 20 26360 -56.3 -87.3 1 31.0 -58.2 275 26 663.8 663.8 323.2 663.9 0.01 83 15 28194 -54.7 -86.7 1 32.0 -57.5 283 21 726.1 726.1 325.3 726.2 0.01 84 13 29107 -55.9 -87.9 1 32.0 -58.7 244 32 752.3 752.3 326.0 752.4 0.01 85 11 30176 -53.5 -86.5 1 33.0 -57.4 267 53 797.8 797.8 327.2 798.0 0.02 86 10 30790 -53.1 -87.1 1 34.0 -57.4 270 53 821.3 821.3 327.8 821.5 0.02 87 8.7 31698 -48.1 -84.1 1 36.0 -54.9 874.1 874.2 328.9 874.5 0.04 88 8.2 32087 -49.7 -84.7 1 35.0 -56.0 882.7 882.8 329.1 883.1 0.04 89 7.2 32944 -46.5 -83.5 1 37.0 -54.8 929.3 929.3 329.9 929.8 0.05 TRP 144 14143 -63.9 -81.9 7 18.0 -64.0 240 49 364.2 364.2 299.5 364.2 0.00 WND 251 10634 -49.1 -52.9 64 3.8 -49.3 255 70 332.7 332.7 292.6 333.2 0.11 Sounding variables and indices 1000-500 mb thick: 5594.00 m Freezing level: 652.00 mb = 3635.30 m = 11926.70 ft Wetbulb zero: 858.84 mb = 1393.15 m = 4570.64 ft Precipitable water: 0.35 inches Sfc-500 mean rel hum: 20.99 % Est. max temperature: 23.06 C = 73.51 F Sfc-Lift cond lev (LCL): 984.99 mb = 251.78 m = 826.04 ft T: 11.63 C 700-500 lapse rate: 4.78 C/km ThetaE index: 4.67 C Layer 916.0- 879.0 mb Conv cond level (CCL): 533.33 mb = 5219.98 m = 17125.71 ft Mean mixing ratio: 4.05 g/kg Conv temperature: 45.12 C = 113.21 F Cap Strength: 17.76 C Lifted Index: 18.09 C Risk: None Lifted Index @300 mb: 22.19 C Lifted Index @700 mb: 11.19 C Showalter Index: 18.91 C Risk: None Total Totals Index: -2.20 C Risk: None Vertical Totals Index: 20.90 C Cross Totals Index: -23.10 C K Index: -23.50 Risk: None Sweat Index: 126.89 Risk: None Energy Index: 4.89 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 28.70 J/kg Max Up Vert Vel: 7.58 m/s Conv Inhibition (B-): 64568.62 J/kg Cap Strength: 18.09 C Lift Cond Lev (LCL): 811.28 mb = 1863.18 m = 6112.71 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 273 at 24 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 1005 98 0 0 -0.0 -0.0 | 93 24 -24.1 1.4 1 1000 126 185 3 0.3 3.0 | 100 24 -23.8 4.4 2 979 305 180 15 0.0 15.0 | 124 29 -24.1 16.4 3 944 610 170 16 -2.8 15.8 | 123 32 -26.8 17.2 4 925 777 190 18 3.1 17.7 | 132 28 -20.9 19.1 5 910 914 205 15 6.3 13.6 | 130 23 -17.7 15.0 6 877 1219 245 23 20.8 9.7 | 164 12 -3.2 11.1 7 850 1479 245 22 19.9 9.3 | 159 11 -4.1 10.7 8 814 1829 255 19 18.4 4.9 | 138 9 -5.7 6.3 9 785 2134 250 22 20.7 7.5 | 159 10 -3.4 8.9 10 756 2438 250 26 24.4 8.9 | 182 10 0.4 10.3 11 728 2743 260 25 24.6 4.3 | 186 6 0.6 5.7 12 700 3065 245 28 25.4 11.8 | 186 13 1.3 13.2 13 649 3658 240 35 30.3 17.5 | 198 20 6.2 18.9 14 625 3962 235 40 32.8 22.9 | 200 26 8.7 24.3 15 601 4267 240 43 37.2 21.5 | 210 26 13.2 22.9 16 556 4877 250 48 45.1 16.4 | 230 28 21.0 17.8 17 535 5182 250 54 50.7 18.5 | 233 33 26.7 19.9 18 500 5720 250 47 44.2 16.1 | 229 27 20.1 17.5 19 476 6096 250 48 45.1 16.4 | 230 28 21.0 17.8 20 404 7315 255 60 58.0 15.5 | 243 38 33.9 16.9 21 400 7390 250 60 56.4 20.5 | 236 39 32.3 21.9 22 387 7620 255 62 59.9 16.0 | 244 40 35.8 17.4 23 313 9144 255 56 54.1 14.5 | 242 34 30.0 15.9 24 300 9440 255 56 54.1 14.5 | 242 34 30.0 15.9 25 286 9754 255 55 53.1 14.2 | 242 33 29.1 15.6 26 251 10634 255 70 67.6 18.1 | 246 48 43.5 19.5 27 250 10660 255 70 67.6 18.1 | 246 48 43.5 19.5 28 250 10668 255 70 67.6 18.1 | 246 48 43.5 19.5 29 200 12090 255 62 59.9 16.0 | 244 40 35.8 17.4 30 187 12497 245 67 60.7 28.3 | 231 47 36.7 29.7 31 154 13716 260 64 63.0 11.1 | 252 41 39.0 12.5 32 150 13890 250 47 44.2 16.1 | 229 27 20.1 17.5 33 147 14021 260 47 46.3 8.2 | 247 24 22.2 9.6 34 144 14143 240 49 42.4 24.5 | 215 32 18.4 25.9 35 140 14326 240 49 42.4 24.5 | 215 32 18.4 25.9 36 133 14630 260 55 54.2 9.6 | 250 32 30.1 11.0 37 126 14935 245 44 39.9 18.6 | 218 25 15.8 20.0 38 120 15240 245 47 42.6 19.9 | 221 28 18.5 21.3 39 109 15850 245 58 52.6 24.5 | 228 39 28.5 25.9 40 104 16154 255 47 45.4 12.2 | 238 25 21.3 13.6 41 100 16370 235 41 33.6 23.5 | 201 27 9.5 24.9 42 99 16459 240 36 31.2 18.0 | 200 21 7.1 19.4 43 94 16764 230 44 33.7 28.3 | 198 31 9.6 29.7 44 89 17069 245 29 26.3 12.3 | 189 14 2.2 13.7 45 85 17374 195 19 4.9 18.4 | 136 28 -19.1 19.8 46 77 17983 210 26 13.0 22.5 | 155 26 -11.1 23.9 47 73 18288 210 23 11.5 19.9 | 149 25 -12.6 21.3 48 70 18540 215 22 12.6 18.0 | 149 23 -11.4 19.4 49 69 18593 240 24 20.8 12.0 | 166 14 -3.3 13.4 50 66 18898 215 22 12.6 18.0 | 149 23 -11.4 19.4 51 63 19202 255 16 15.5 4.1 | 123 10 -8.6 5.5 52 60 19507 220 23 14.8 17.6 | 154 21 -9.3 19.0 53 57 19812 215 10 5.7 8.2 | 118 21 -18.3 9.6 54 54 20117 245 13 11.8 5.5 | 119 14 -12.3 6.9 55 52 20422 260 21 20.7 3.6 | 146 6 -3.4 5.0 56 50 20620 295 6 5.4 -2.5 | 87 19 -18.6 -1.1 57 49 20726 285 10 9.7 -2.6 | 85 14 -14.4 -1.2 58 45 21336 135 2 -1.4 1.4 | 96 26 -25.5 2.8 59 42 21641 170 10 -1.7 9.8 | 114 28 -25.8 11.3 60 40 21946 220 10 6.4 7.7 | 117 20 -17.6 9.1 61 39 22250 255 16 15.5 4.1 | 123 10 -8.6 5.5 62 37 22555 275 10 10.0 -0.9 | 92 14 -14.1 0.5 63 32 23470 240 10 8.7 5.0 | 113 17 -15.4 6.4 64 30 23774 295 3 2.7 -1.3 | 90 21 -21.3 0.1 65 30 23810 235 17 13.9 9.8 | 138 15 -10.1 11.2 66 29 24079 230 13 10.0 8.4 | 125 17 -14.1 9.8 67 27 24384 255 18 17.4 4.7 | 132 9 -6.7 6.1 68 26 24689 270 25 25.0 -0.0 | 214 2 0.9 1.4 69 25 24994 270 30 30.0 -0.0 | 257 6 5.9 1.4 70 23 25603 275 22 21.9 -1.9 | 77 2 -2.1 -0.5 71 20 26213 290 31 29.1 -10.6 | 331 11 5.1 -9.2 72 20 26360 275 26 25.9 -2.3 | 295 2 1.8 -0.9 73 19 26822 270 25 25.0 -0.0 | 214 2 0.9 1.4 74 17 27432 275 29 28.9 -2.5 | 283 5 4.8 -1.1 75 15 28346 285 19 18.4 -4.9 | 58 7 -5.7 -3.5 76 14 28651 255 20 19.3 5.2 | 144 8 -4.7 6.6 77 13 29261 240 36 31.2 18.0 | 200 21 7.1 19.4 78 12 29870 265 53 52.8 4.6 | 258 29 28.7 6.0 79 10 30790 270 53 53.0 -0.0 | 267 29 28.9 1.4 Wind Parameters Mean winds (0-6000m): 243.3 at 32.1 knts Storm direction: 273.3 at 24.1 knts Shear (0-3000m) pos: 4.4 neg: 1.0 tot: 5.4 10-3/s Storm rel Dir Shear (0-3000m): 93.4 deg Storm rel helicity (0-3000m) pos: 196.7 neg: -20.8 tot: 175.9 m^2/s^2 ave: 58.6 10^-3 m/s^2 rel: 0.46 Storm rel vorticity (0-3000m) horiz: 11.4 stream: 5.3 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.25 Bulk Shear: 115.33 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 ------------------------------------------------------------------------------- 500 177 12 119 28| 16.4 0.0 16.4| 92.2 -5.2 87.0 174.0 0.74| 18.2 13.4 1000 189 15 126 27| 10.2 0.0 10.2|164.3 -10.1 154.2 154.2 0.63| 19.1 12.0 1500 213 17 137 21| 7.2 0.0 7.2|178.1 -15.1 163.0 108.6 0.55| 15.8 8.7 2000 225 18 141 18| 5.6 0.0 5.6|184.2 -20.4 163.7 81.9 0.50| 13.2 6.6 2500 233 19 146 16| 5.2 0.0 5.2|195.8 -20.4 175.4 70.1 0.53| 11.9 6.3 3000 238 20 151 14| 4.4 1.0 5.4|196.7 -20.8 175.9 58.6 0.46| 11.4 5.3 4000 238 24 165 14| 3.3 2.4 5.7|227.7 -20.8 206.9 51.7 0.45| 10.4 4.7 5000 241 29 183 15| 4.0 1.9 6.0|323.2 -20.8 302.4 60.5 0.51| 10.0 5.1 6000 243 32 196 16| 3.3 1.4 4.7|328.9 -37.4 291.4 48.6 0.46| 9.1 4.2 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251021.12.gif