UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100812.upa.cvt Date: 1200Z 8 OCT 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 8 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 19.8 19.3 97 0.5 19.5 250 2 292.6 295.1 292.4 332.8 14.17 1 1000 122 19.4 19.0 98 0.4 19.1 280 6 292.5 295.0 292.3 332.1 13.96 2 997 148 19.0 18.8 99 0.2 18.9 280 7 292.4 294.9 292.2 331.6 13.82 3 985 252 19.6 17.9 90 1.7 18.5 280 12 294.0 296.4 292.2 331.7 13.21 4 962 456 19.0 17.1 89 1.9 17.7 285 17 295.4 297.7 292.3 332.3 12.85 5 925 793 17.0 15.3 90 1.7 15.9 295 18 296.7 298.8 292.0 331.1 11.90 6 853 1481 12.8 12.4 97 0.4 12.6 305 23 299.3 301.2 291.8 330.4 10.67 7 850 1511 12.8 12.0 95 0.8 12.3 305 23 299.6 301.5 291.7 330.1 10.42 8 783 2198 9.2 9.2 100 0.0 9.2 299 21 302.8 304.5 291.9 330.7 9.37 9 728 2800 6.2 6.2 100 0.0 6.2 279 21 305.9 307.4 291.9 330.7 8.20 10 705 3064 5.2 4.6 96 0.6 4.9 272 24 307.6 309.0 291.9 330.7 7.57 11 702 3099 5.2 4.0 92 1.2 4.5 271 24 308.0 309.4 291.7 330.2 7.28 12 700 3122 5.2 4.1 93 1.1 4.6 270 24 308.2 309.6 291.9 330.7 7.36 13 645 3785 1.2 1.2 100 0.0 1.2 254 28 311.0 312.2 292.0 331.1 6.49 14 626 4025 -0.3 -0.9 96 0.6 -0.6 252 30 312.0 313.1 291.7 329.9 5.73 15 622 4076 -0.5 -2.6 86 2.1 -1.6 252 31 312.3 313.3 291.2 328.3 5.08 16 615 4166 -1.5 -2.6 92 1.1 -2.0 251 32 312.2 313.1 291.2 328.3 5.14 17 600 4363 -2.5 -4.9 84 2.4 -3.6 250 32 313.2 314.1 290.9 327.3 4.43 18 594 4442 -3.3 -4.8 89 1.5 -4.0 250 30 313.2 314.1 291.0 327.5 4.51 19 587 4536 -3.9 -6.3 83 2.4 -5.0 250 29 313.6 314.3 290.7 326.5 4.07 20 585 4563 -3.9 -8.9 68 5.0 -6.0 250 28 313.9 314.5 290.2 324.6 3.33 21 584 4576 -3.9 -8.9 68 5.0 -6.0 250 28 314.0 314.7 290.2 324.8 3.34 22 580 4631 -3.7 -12.7 50 9.0 -7.2 249 29 314.9 315.4 289.6 323.0 2.48 23 570 4768 -4.7 -14.7 45 10.0 -8.4 247 33 315.3 315.7 289.5 322.3 2.14 24 568 4796 -4.3 -16.3 39 12.0 -8.5 247 34 316.1 316.4 289.5 322.3 1.88 25 567 4809 -4.3 -15.3 42 11.0 -8.3 246 35 316.2 316.6 289.7 323.0 2.05 26 561 4893 -4.9 -12.9 53 8.0 -7.9 245 37 316.5 317.0 290.2 324.8 2.52 27 558 4935 -4.5 -16.5 39 12.0 -8.7 245 37 317.4 317.8 289.9 323.7 1.89 28 555 4978 -4.7 -13.7 49 9.0 -8.1 245 38 317.7 318.1 290.5 325.6 2.39 29 550 5049 -5.1 -11.1 63 6.0 -7.5 245 39 318.0 318.6 291.1 327.8 2.98 30 534 5280 -7.1 -11.4 71 4.3 -8.8 245 41 318.3 318.9 291.2 328.2 3.00 31 527 5383 -7.3 -12.3 67 5.0 -9.2 245 42 319.3 319.8 291.3 328.6 2.82 32 517 5532 -8.7 -13.5 68 4.8 -10.5 246 43 319.4 319.9 291.2 328.0 2.61 33 505 5713 -10.3 -13.4 78 3.1 -11.5 252 44 319.6 320.1 291.3 328.5 2.69 34 500 5790 -10.7 -14.3 75 3.6 -12.0 255 44 320.0 320.5 291.3 328.4 2.53 35 472 6231 -14.3 -18.4 71 4.1 -15.6 259 44 320.8 321.2 290.9 327.3 1.90 36 465 6344 -14.5 -19.5 66 5.0 -16.0 259 46 322.0 322.3 291.1 328.0 1.75 37 455 6509 -15.7 -19.9 70 4.2 -17.0 258 49 322.5 322.8 291.3 328.4 1.73 38 447 6643 -16.3 -22.3 60 6.0 -18.0 257 52 323.4 323.6 291.2 328.3 1.43 39 435 6847 -18.3 -22.0 73 3.7 -19.3 256 56 323.4 323.7 291.3 328.6 1.51 40 414 7216 -20.5 -22.1 87 1.6 -20.9 248 59 325.1 325.4 291.9 330.6 1.57 41 400 7470 -21.9 -23.7 85 1.8 -22.4 240 57 326.5 326.8 292.1 331.5 1.41 42 386 7731 -23.5 -25.0 87 1.5 -23.8 240 59 327.8 328.0 292.3 332.4 1.30 43 382 7807 -23.9 -25.9 84 2.0 -24.4 240 60 328.2 328.5 292.4 332.5 1.21 44 329 8877 -31.9 -35.6 70 3.7 -32.4 244 70 331.6 331.7 292.7 333.6 0.56 45 300 9520 -37.7 -39.8 81 2.1 -37.9 245 73 332.2 332.3 292.7 333.8 0.40 46 297 9589 -38.3 -40.0 84 1.7 -38.5 245 74 332.3 332.4 292.7 333.8 0.40 47 295 9636 -38.9 -41.1 80 2.2 -39.1 245 74 332.1 332.2 292.7 333.5 0.36 48 293 9683 -39.1 -42.5 70 3.4 -39.4 246 74 332.5 332.6 292.7 333.7 0.31 49 287 9824 -40.5 -42.6 80 2.1 -40.7 246 75 332.5 332.5 292.7 333.7 0.31 50 285 9872 -40.9 -44.0 72 3.1 -41.1 246 76 332.6 332.6 292.7 333.6 0.27 51 281 9968 -41.7 -44.8 72 3.1 -41.9 247 77 332.8 332.8 292.7 333.7 0.25 52 278 10041 -42.3 -45.2 73 2.9 -42.5 247 77 332.9 333.0 292.7 333.9 0.24 53 277 10066 -42.7 -46.8 64 4.1 -43.0 247 77 332.7 332.7 292.7 333.5 0.20 54 274 10139 -43.3 -47.6 62 4.3 -43.6 247 78 332.8 332.9 292.7 333.6 0.19 55 267 10313 -44.7 -47.8 71 3.1 -44.9 248 79 333.3 333.3 292.8 334.0 0.19 56 263 10414 -45.7 -48.9 70 3.2 -45.9 249 80 333.3 333.3 292.8 333.9 0.17 57 250 10750 -49.1 -52.9 64 3.8 -49.3 250 83 333.1 333.1 292.7 333.5 0.11 58 244 10909 -49.8 -55.0 54 5.2 -50.0 250 86 334.4 334.4 293.0 334.7 0.09 59 200 12190 -55.3 -72.3 10 17.0 -55.5 255 73 345.2 345.2 295.6 345.2 0.01 60 150 14000 -60.5 -80.5 6 20.0 -60.7 265 64 365.9 365.9 299.8 365.9 0.00 61 115 15638 -66.1 -85.1 5 19.0 -66.2 270 44 384.3 384.3 302.9 384.4 0.00 62 100 16490 -64.9 -85.9 4 21.0 -65.1 260 20 402.3 402.3 305.5 402.3 0.00 63 91 17058 -68.5 -86.5 6 18.0 -68.6 250 23 406.2 406.2 306.0 406.2 0.00 64 87 17327 -68.7 -86.7 6 18.0 -68.8 261 27 411.0 411.0 306.6 411.1 0.00 65 85 17466 -66.5 -86.5 4 20.0 -66.7 266 30 418.2 418.2 307.5 418.2 0.00 66 80 17831 -67.9 -86.9 5 19.0 -68.0 262 30 422.7 422.7 308.0 422.7 0.00 67 70 18640 -63.7 -87.7 2 24.0 -64.0 280 20 448.1 448.1 310.7 448.1 0.00 68 67 18909 -63.3 -88.3 2 25.0 -63.6 271 18 454.6 454.6 311.3 454.6 0.00 69 60 19586 -64.1 -88.1 2 24.0 -64.4 303 12 467.4 467.4 312.4 467.4 0.00 70 53 20350 -61.9 -87.9 2 26.0 -62.3 310 12 489.4 489.4 314.2 489.4 0.00 71 50 20710 -62.5 -88.5 2 26.0 -62.9 325 14 496.2 496.2 314.7 496.2 0.00 72 48 20961 -62.9 -87.9 2 25.0 -63.3 323 16 501.1 501.1 315.0 501.1 0.00 73 42 21792 -58.7 -86.7 2 28.0 -59.5 238 11 531.0 531.0 317.0 531.0 0.01 74 37 22587 -58.7 -86.7 2 28.0 -59.6 220 10 550.6 550.6 318.1 550.6 0.01 75 31 23703 -57.1 -86.1 1 29.0 -58.3 283 10 583.5 583.5 319.8 583.5 0.01 76 30 23910 -57.1 -86.1 1 29.0 -58.3 100 6 589.0 589.0 320.1 589.0 0.01 77 28 24345 -57.7 -86.7 1 29.0 -59.0 151 9 599.0 599.0 320.6 599.1 0.01 78 26 24816 -54.1 -85.1 1 31.0 -56.1 241 15 622.1 622.1 321.6 622.2 0.01 79 26 24816 -54.7 -85.7 1 31.0 -56.5 241 15 620.4 620.4 321.5 620.5 0.01 80 22 25892 -50.9 -83.9 1 33.0 -53.9 245 13 662.1 662.1 323.2 662.2 0.02 81 20 26510 -52.3 -84.3 1 32.0 -55.1 275 18 676.1 676.1 323.6 676.2 0.02 82 18 27195 -50.5 -83.5 1 33.0 -54.1 275 19 702.4 702.5 324.5 702.6 0.02 83 15 28389 -48.9 -82.9 1 34.0 -53.5 280 12 745.4 745.4 325.8 745.6 0.03 84 14 28841 -49.5 -83.5 1 34.0 -54.1 252 15 758.2 758.2 326.1 758.4 0.03 85 12 29858 -46.7 -82.7 1 36.0 -52.9 294 26 802.3 802.3 327.3 802.6 0.04 86 10 31060 -49.5 -83.5 1 34.0 -55.2 250 14 834.8 834.8 328.1 835.1 0.04 87 9.9 31126 -49.9 -83.9 1 34.0 -55.5 835.7 835.7 328.1 836.0 0.04 88 8.5 32131 -46.1 -82.1 1 36.0 -53.9 887.8 887.8 329.2 888.3 0.06 89 8.1 32452 -46.1 -82.1 1 36.0 -54.1 900.1 900.1 329.4 900.7 0.06 TRP 115 15638 -66.1 -85.1 5 19.0 -66.2 270 44 384.3 384.3 302.9 384.4 0.00 WND 244 10909 -49.8 -55.0 54 5.2 -50.0 250 86 334.4 334.4 293.0 334.7 0.09 Sounding variables and indices 1000-500 mb thick: 5668.00 m Freezing level: 629.80 mb = 3976.90 m = 13047.41 ft Wetbulb zero: 632.54 mb = 3941.56 m = 12931.48 ft Precipitable water: 1.75 inches Sfc-500 mean rel hum: 87.35 % Est. max temperature: 26.41 C = 79.53 F Sfc-Lift cond lev (LCL): 996.95 mb = 148.33 m = 486.64 ft T: 19.00 C 700-500 lapse rate: 5.96 C/km ThetaE index: 2.25 C Layer 925.0- 783.0 mb Conv cond level (CCL): 905.03 mb = 978.37 m = 3209.85 ft Mean mixing ratio: 12.62 g/kg Conv temperature: 24.58 C = 76.24 F Cap Strength: 1.02 C Lifted Index: -0.29 C Risk: Thunderstorms probable Lifted Index @300 mb: 1.54 C Lifted Index @700 mb: 0.26 C Showalter Index: 0.47 C Risk: Thunderstorms probable Total Totals Index: 46.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.50 C Cross Totals Index: 22.70 C K Index: 34.40 Risk: 60-80 % chance of thunderstorms Sweat Index: 234.00 Risk: None Energy Index: -0.39 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 81.61 J/kg Max Up Vert Vel: 12.78 m/s Conv Inhibition (B-): 16.15 J/kg Cap Strength: 1.02 C Lift Cond Lev (LCL): 931.81 mb = 729.98 m = 2394.93 ft Lev Free Conv (LFC): 856.81 mb = 1443.41 m = 4735.55 ft Equ Level (EL): 706.81 mb = 3042.61 m = 9982.20 ft B at Equ Level: 30.03 J/kg Max Parcel Lev (MPL): 326.81 mb = 8923.59 m = 29276.51 ft Wind level data Storm motion: 296 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 1004 98 250 2 1.9 0.7 | 120 19 -16.7 9.7 1 1000 122 280 6 5.9 -1.0 | 122 15 -12.6 8.0 2 979 305 280 15 14.8 -2.6 | 150 7 -3.8 6.4 3 945 610 290 19 17.9 -6.5 | 165 3 -0.7 2.5 4 925 793 295 18 16.3 -7.6 | 122 3 -2.2 1.4 5 912 914 300 20 17.3 -10.0 | 51 2 -1.2 -1.0 6 880 1219 305 22 18.0 -12.6 | 8 4 -0.5 -3.6 7 850 1511 305 23 18.8 -13.2 | 356 4 0.3 -4.2 8 818 1829 300 23 19.9 -11.5 | 331 3 1.4 -2.5 9 789 2134 300 21 18.2 -10.5 | 13 2 -0.3 -1.5 10 760 2438 295 21 19.0 -8.9 | 254 1 0.5 0.1 11 733 2743 280 21 20.7 -3.6 | 202 6 2.2 5.4 12 700 3122 270 24 24.0 -0.0 | 211 11 5.5 9.0 13 680 3353 255 27 26.1 7.0 | 205 18 7.5 16.0 14 654 3658 255 27 26.1 7.0 | 205 18 7.5 16.0 15 606 4267 250 33 31.0 11.3 | 212 24 12.5 20.3 16 583 4572 250 28 26.3 9.6 | 203 20 7.8 18.6 17 561 4877 245 37 33.5 15.6 | 211 29 15.0 24.7 18 520 5486 245 43 39.0 18.2 | 217 34 20.4 27.2 19 500 5790 255 44 42.5 11.4 | 230 31 24.0 20.4 20 480 6096 260 41 40.4 7.1 | 234 27 21.8 16.1 21 425 7010 255 60 58.0 15.5 | 238 46 39.4 24.5 22 400 7470 240 57 49.4 28.5 | 219 49 30.8 37.5 23 392 7620 240 57 49.4 28.5 | 219 49 30.8 37.5 24 375 7925 240 62 53.7 31.0 | 221 53 35.2 40.0 25 316 9144 245 73 66.2 30.9 | 230 62 47.6 39.9 26 300 9520 245 73 66.2 30.9 | 230 62 47.6 39.9 27 250 10750 250 83 78.0 28.4 | 238 70 59.5 37.4 28 244 10909 250 86 80.8 29.4 | 238 73 62.3 38.4 29 242 10973 250 86 80.8 29.4 | 238 73 62.3 38.4 30 200 12190 255 73 70.5 18.9 | 242 59 52.0 27.9 31 200 12192 255 72 69.5 18.6 | 242 58 51.0 27.7 32 165 13411 265 77 76.7 6.7 | 255 60 58.2 15.7 33 150 14000 265 64 63.8 5.6 | 252 48 45.2 14.6 34 123 15240 270 54 54.0 -0.0 | 256 37 35.5 9.0 35 115 15638 270 44 44.0 -0.0 | 251 27 25.5 9.0 36 106 16154 270 43 43.0 -0.0 | 250 26 24.5 9.0 37 101 16459 275 45 44.8 -3.9 | 259 27 26.3 5.1 38 100 16490 260 20 19.7 3.5 | 185 13 1.2 12.5 39 96 16764 260 20 19.7 3.5 | 185 13 1.2 12.5 40 91 17069 250 23 21.6 7.9 | 190 17 3.1 16.9 41 82 17678 275 33 32.9 -2.9 | 247 16 14.3 6.1 42 78 17983 250 27 25.4 9.2 | 201 19 6.8 18.3 43 74 18288 260 33 32.5 5.7 | 223 20 14.0 14.7 44 71 18593 290 25 23.5 -8.6 | 265 5 5.0 0.5 45 70 18640 280 20 19.7 -3.5 | 192 6 1.2 5.5 46 67 18898 270 18 18.0 -0.0 | 177 9 -0.5 9.0 47 64 19202 295 24 21.8 -10.1 | 289 3 3.2 -1.1 48 61 19507 315 10 7.1 -7.1 | 100 12 -11.5 1.9 49 58 19812 270 16 16.0 -0.0 | 164 9 -2.5 9.0 50 55 20117 300 11 9.5 -5.5 | 111 10 -9.0 3.5 51 50 20710 325 14 8.0 -11.5 | 77 11 -10.5 -2.5 52 50 20726 280 12 11.8 -2.1 | 136 10 -6.7 6.9 53 48 21031 335 17 7.2 -15.4 | 61 13 -11.3 -6.4 54 45 21336 320 12 7.7 -9.2 | 89 11 -10.8 -0.2 55 39 22250 160 10 -3.4 9.4 | 130 29 -22.0 18.4 56 35 22860 265 10 10.0 0.9 | 139 13 -8.6 9.9 57 31 23774 285 10 9.7 -2.6 | 126 11 -8.9 6.4 58 30 23910 100 6 -5.9 1.0 | 112 26 -24.4 10.1 59 29 24079 290 10 9.4 -3.4 | 122 11 -9.1 5.6 60 28 24384 135 9 -6.4 6.4 | 122 29 -24.9 15.4 61 27 24689 225 14 9.9 9.9 | 155 21 -8.6 18.9 62 25 24994 260 17 16.7 3.0 | 172 12 -1.8 12.0 63 24 25298 260 19 18.7 3.3 | 181 12 0.2 12.3 64 23 25603 255 12 11.6 3.1 | 150 14 -6.9 12.1 65 22 25908 245 13 11.8 5.5 | 155 16 -6.7 14.5 66 20 26510 275 18 17.9 -1.6 | 175 7 -0.6 7.4 67 20 26518 250 29 27.3 9.9 | 205 21 8.7 18.9 68 19 26822 275 21 20.9 -1.8 | 198 8 2.4 7.2 69 17 27432 275 17 16.9 -1.5 | 168 8 -1.6 7.5 70 17 27737 285 16 15.5 -4.1 | 148 6 -3.1 4.9 71 16 28042 250 12 11.3 4.1 | 151 15 -7.3 13.1 72 15 28346 285 12 11.6 -3.1 | 130 9 -6.9 5.9 73 14 28651 255 13 12.6 3.4 | 154 14 -6.0 12.4 74 13 29261 245 20 18.1 8.5 | 179 17 -0.4 17.5 75 12 29870 295 26 23.6 -11.0 | 291 5 5.0 -2.0 76 11 30175 300 3 2.6 -1.5 | 115 18 -15.9 7.5 77 10 31060 250 14 13.2 4.8 | 159 15 -5.4 13.8 Wind Parameters Mean winds (0-6000m): 266.0 at 27.5 knts Storm direction: 296.0 at 20.6 knts Shear (0-3000m) pos: 3.8 neg: 2.3 tot: 6.0 10-3/s Storm rel Dir Shear (0-3000m): 90.9 deg Storm rel helicity (0-3000m) pos: 21.3 neg: -6.1 tot: 15.2 m^2/s^2 ave: 5.1 10^-3 m/s^2 rel: -0.04 Storm rel vorticity (0-3000m) horiz: 7.2 stream: -0.3 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.75 Bulk Shear: 29.66 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 ------------------------------------------------------------------------------- 500 284 14 138 8| 17.9 0.0 17.9| 18.7 0.0 18.7 37.5 0.38| 18.7 7.2 1000 292 17 133 4| 10.3 0.0 10.3| 18.7 -2.8 15.9 15.9 0.06| 12.5 0.8 1500 297 18 108 2| 7.5 0.0 7.5| 18.7 -4.4 14.3 9.6 -0.00| 9.2 -0.0 2000 298 20 83 1| 5.6 0.6 6.2| 19.3 -5.2 14.1 7.0 0.00| 7.7 0.0 2500 298 20 81 1| 4.5 1.4 5.9| 19.3 -5.8 13.6 5.4 -0.07| 7.2 -0.5 3000 294 20 175 1| 3.8 2.3 6.0| 21.3 -6.1 15.2 5.1 -0.04| 7.2 -0.3 4000 282 22 214 5| 2.8 3.2 6.0| 30.5 -11.8 18.8 4.7 -0.03| 7.0 -0.2 5000 272 24 215 10| 2.3 3.5 5.7| 61.7 -28.1 33.6 6.7 0.01| 7.3 0.0 6000 266 27 219 14| 2.7 2.9 5.6|156.0 -28.1 128.0 21.3 0.13| 7.4 1.0 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251008.12.gif