UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100912.upa.cvt Date: 1200Z 9 OCT 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 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 1019 98 7.4 3.8 78 3.6 5.6 265 4 279.0 279.9 277.9 292.6 4.93 1 1016 120 8.8 3.8 71 5.0 6.3 282 6 280.7 281.5 278.8 294.3 4.94 2 1009 173 9.8 1.8 57 8.0 6.0 323 11 282.2 283.0 278.7 294.3 4.31 3 1004 211 9.8 1.8 57 8.0 6.0 352 14 282.6 283.4 279.0 294.8 4.34 4 1000 242 9.8 1.8 57 8.0 6.0 15 17 283.0 283.7 279.1 295.2 4.35 5 983 385 9.8 0.8 53 9.0 5.6 20 22 284.3 285.1 279.6 296.0 4.12 6 956 615 8.0 1.0 61 7.0 4.7 35 25 284.8 285.5 280.0 296.9 4.30 7 938 772 7.2 -0.8 57 8.0 3.6 41 23 285.5 286.2 279.8 296.5 3.84 8 925 887 6.4 -0.6 61 7.0 3.2 45 21 285.9 286.5 280.1 297.1 3.95 9 912 1003 5.8 -2.2 56 8.0 2.3 38 19 286.4 287.0 279.8 296.6 3.56 10 910 1021 6.0 -3.0 52 9.0 2.1 36 18 286.8 287.4 279.8 296.5 3.36 11 870 1386 2.8 -3.2 65 6.0 0.3 4 14 287.2 287.8 280.1 297.2 3.47 12 868 1405 3.0 -4.0 60 7.0 0.1 2 14 287.6 288.1 280.0 297.0 3.27 13 867 1414 3.2 -4.8 56 8.0 -0.1 1 14 287.9 288.4 279.9 296.8 3.08 14 866 1424 5.0 -13.0 26 18.0 -1.2 360 14 289.8 290.1 279.0 294.7 1.62 15 860 1480 5.6 -20.4 13 26.0 -2.1 354 14 291.0 291.2 278.5 293.8 0.88 16 852 1557 6.6 -35.4 3 42.0 -2.7 9 13 292.9 292.9 278.4 293.6 0.22 17 850 1576 6.8 -36.2 3 43.0 -2.6 20 12 293.3 293.3 278.6 294.0 0.20 18 840 1673 7.4 -39.6 2 47.0 -2.4 10 13 294.9 294.9 279.3 295.4 0.15 19 824 1831 7.8 -40.2 2 48.0 -2.3 355 14 296.9 297.0 280.2 297.4 0.14 20 783 2250 6.4 -39.6 2 46.0 -3.4 341 14 299.8 299.8 281.5 300.4 0.16 21 767 2419 6.6 327 11 301.8 22 733 2789 4.8 -38.2 3 43.0 -4.6 309 15 303.8 303.8 283.2 304.5 0.19 23 730 2823 5.0 -42.0 2 47.0 -4.6 309 15 304.3 304.4 283.3 304.8 0.13 24 700 3163 2.6 -34.4 5 37.0 -6.0 310 16 305.4 305.4 284.0 306.4 0.30 25 618 4157 -3.9 -39.9 4 36.0 -10.6 308 17 309.0 309.0 285.2 309.7 0.19 26 600 4390 -4.5 -41.5 4 37.0 -11.2 315 16 310.9 310.9 285.9 311.5 0.17 27 597 4429 -4.5 -42.5 3 38.0 -11.3 317 16 311.4 311.4 286.0 311.9 0.15 28 570 4792 -6.3 -43.3 3 37.0 -12.6 322 20 313.4 313.4 286.7 313.9 0.15 29 502 5770 -14.3 -30.3 24 16.0 -17.6 315 24 315.2 315.4 287.9 317.4 0.61 30 500 5800 -14.5 -30.5 24 16.0 -17.8 315 24 315.4 315.5 287.9 317.5 0.60 31 476 6172 -16.1 -38.1 13 22.0 -19.7 296 25 317.8 317.9 288.4 318.9 0.30 32 463 6380 -17.5 -41.5 10 24.0 -21.0 300 26 318.6 318.7 288.6 319.4 0.22 33 445 6676 -18.7 -41.7 11 23.0 -22.0 299 28 320.8 320.8 289.2 321.6 0.22 34 406 7352 -24.5 -42.5 17 18.0 -26.7 296 32 321.8 321.8 289.5 322.6 0.22 35 400 7460 -25.3 -44.3 15 19.0 -27.5 295 33 322.1 322.1 289.6 322.8 0.19 36 349 8435 -32.5 -54.5 9 22.0 -34.0 290 35 325.2 325.2 290.4 325.5 0.07 37 309 9279 -39.7 -57.7 13 18.0 -40.5 279 38 326.6 326.6 290.8 326.8 0.05 38 300 9480 -41.5 -56.5 18 15.0 -42.2 270 42 326.9 326.9 290.9 327.1 0.06 39 285 9825 -44.7 -57.7 22 13.0 -45.2 270 43 327.1 327.1 291.0 327.3 0.06 40 275 10063 -46.7 -56.7 31 10.0 -47.0 270 44 327.6 327.6 291.1 327.8 0.06 41 272 10136 -46.7 -58.7 24 12.0 -47.1 270 44 328.6 328.6 291.4 328.8 0.05 42 258 10484 -49.3 -62.3 20 13.0 -49.6 270 45 329.8 329.8 291.7 329.9 0.03 43 252 10638 -50.5 -63.5 20 13.0 -50.8 270 46 330.2 330.2 291.8 330.4 0.03 44 250 10690 -50.7 -62.7 23 12.0 -51.0 270 46 330.7 330.7 291.9 330.8 0.03 45 243 10874 -51.5 -62.5 26 11.0 -51.8 270 47 332.2 332.2 292.3 332.3 0.04 46 234 11118 -52.9 -67.9 15 15.0 -53.2 271 46 333.7 333.7 292.7 333.7 0.02 47 223 11427 -54.3 -68.3 16 14.0 -54.5 274 41 336.1 336.2 293.4 336.2 0.02 48 221 11485 -54.5 -67.5 19 13.0 -54.7 274 40 336.7 336.7 293.5 336.8 0.02 49 212 11750 -55.7 -68.7 18 13.0 -55.9 260 36 338.9 338.9 294.0 338.9 0.02 50 200 12120 -56.1 -73.1 10 17.0 -56.3 265 38 343.9 343.9 295.3 344.0 0.01 51 184 12648 -56.7 -75.7 7 19.0 -56.9 274 39 351.3 351.3 296.9 351.3 0.01 52 180 12787 -55.1 -78.1 4 23.0 -55.4 279 41 356.1 356.1 297.9 356.1 0.01 53 150 13940 -58.1 -83.1 3 25.0 -58.3 270 40 370.0 370.0 300.5 370.0 0.00 54 149 13982 -57.9 -82.9 3 25.0 -58.2 278 39 371.0 371.0 300.8 371.0 0.00 55 138 14464 -60.5 -83.5 3 23.0 -60.7 285 47 374.7 374.7 301.4 374.7 0.00 56 114 15652 -61.7 -84.7 3 23.0 -61.9 288 33 393.5 393.5 304.3 393.5 0.00 57 109 15929 -63.3 -85.3 4 22.0 -63.5 278 32 395.6 395.6 304.6 395.6 0.00 58 100 16460 -62.7 -85.7 3 23.0 -62.9 290 31 406.6 406.6 306.1 406.6 0.00 59 89 17174 -63.9 -86.9 3 23.0 -64.1 310 18 418.0 418.0 307.4 418.0 0.00 60 81 17745 -66.7 -87.7 4 21.0 -66.8 277 15 423.6 423.6 308.2 423.6 0.00 61 79 17895 -67.1 -88.1 4 21.0 -67.2 282 16 425.8 425.8 308.4 425.9 0.00 62 76 18129 -65.1 -88.1 3 23.0 -65.3 290 16 434.8 434.8 309.3 434.8 0.00 63 73 18374 -65.9 -88.9 3 23.0 -66.1 289 15 438.1 438.1 309.7 438.1 0.00 64 70 18630 -62.1 -88.1 2 26.0 -62.4 300 20 451.5 451.5 311.0 451.5 0.00 65 68 18810 -61.3 -88.3 2 27.0 -61.7 290 17 457.0 457.0 311.5 457.0 0.00 66 65 19089 -62.7 -88.7 2 26.0 -63.0 304 20 459.9 459.9 311.8 459.9 0.00 67 63 19282 -61.7 -88.7 2 27.0 -62.1 321 19 466.2 466.2 312.3 466.2 0.00 68 59 19687 -64.1 -89.1 2 25.0 -64.4 290 10 469.7 469.7 312.6 469.7 0.00 69 50 20710 -60.5 -88.5 1 28.0 -61.0 355 12 500.9 500.9 315.0 500.9 0.00 70 49 20836 -60.5 -88.5 1 28.0 -61.0 327 8 503.8 503.8 315.2 503.8 0.00 71 45 21364 -62.1 -89.1 2 27.0 -62.6 127 8 512.3 512.4 315.8 512.4 0.00 72 42 21793 -59.3 -88.3 1 29.0 -60.0 209 14 529.5 529.5 316.9 529.5 0.00 73 33 23314 -55.9 -86.9 1 31.0 -57.2 307 12 576.3 576.3 319.5 576.4 0.01 74 30 23920 -56.3 -86.3 1 30.0 -57.7 240 9 591.2 591.2 320.2 591.2 0.01 75 25 25089 -53.3 -85.3 1 32.0 -55.5 257 18 631.4 631.4 322.0 631.5 0.01 76 24 25352 -53.9 -85.9 1 32.0 -56.1 258 19 637.1 637.1 322.2 637.2 0.01 77 23 25627 -51.5 -85.5 1 34.0 -54.2 274 20 651.9 652.0 322.7 652.0 0.01 78 21 26221 -49.5 -83.5 1 34.0 -53.0 300 12 675.2 675.2 323.6 675.3 0.02 79 20 26540 -51.3 -84.3 1 33.0 -54.4 310 7 679.1 679.2 323.7 679.3 0.02 80 19 26873 -52.3 -84.3 1 32.0 -55.2 310 6 686.1 686.1 324.0 686.2 0.02 81 17 27593 -51.9 -84.9 1 33.0 -55.2 289 14 709.5 709.5 324.7 709.7 0.02 82 16 27984 -53.1 -85.1 1 32.0 -56.2 321 19 718.0 718.0 325.0 718.2 0.02 83 16 27984 -50.5 -84.5 1 34.0 -54.4 321 19 726.5 726.5 325.3 726.7 0.02 84 13 29342 -49.5 -83.5 1 34.0 -54.4 233 22 774.4 774.4 326.6 774.7 0.03 85 12 29870 -46.3 -83.3 1 37.0 -52.7 309 16 803.7 803.7 327.3 804.0 0.03 86 11 30444 -49.3 -83.3 1 34.0 -54.8 48 3 813.1 813.1 327.5 813.4 0.03 87 10 31070 -48.5 -83.5 1 35.0 -54.6 290 7 838.5 838.5 328.1 838.9 0.04 88 8.9 31844 -44.5 -81.5 1 37.0 -52.9 882.4 882.4 329.1 883.0 0.06 TRP 212 11750 -55.7 -68.7 18 13.0 -55.9 260 36 338.9 338.9 294.0 338.9 0.02 WND Sounding variables and indices 1000-500 mb thick: 5558.00 m Freezing level: 667.20 mb = 3560.61 m = 11681.66 ft Wetbulb zero: 867.55 mb = 1409.01 m = 4622.69 ft Precipitable water: 0.29 inches Sfc-500 mean rel hum: 19.70 % Est. max temperature: 15.76 C = 60.37 F Sfc-Lift cond lev (LCL): 964.37 mb = 543.12 m = 1781.88 ft T: 8.56 C 700-500 lapse rate: 6.48 C/km ThetaE index: 3.55 C Layer 868.0- 850.0 mb Conv cond level (CCL): 569.60 mb = 4797.43 m = 15739.40 ft Mean mixing ratio: 4.18 g/kg Conv temperature: 41.94 C = 107.49 F Cap Strength: 17.41 C Lifted Index: 17.24 C Risk: None Lifted Index @300 mb: 21.94 C Lifted Index @700 mb: 14.36 C Showalter Index: 18.12 C Risk: None Total Totals Index: -0.40 C Risk: None Vertical Totals Index: 21.30 C Cross Totals Index: -21.70 C K Index: -51.90 Risk: None Sweat Index: 48.00 Risk: None Energy Index: 4.98 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 15.55 J/kg Max Up Vert Vel: 5.58 m/s Conv Inhibition (B-): 69297.20 J/kg Cap Strength: 17.40 C Lift Cond Lev (LCL): 860.65 mb = 1474.11 m = 4836.27 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 3 at 14 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 1019 98 265 4 4.0 0.3 | 199 15 4.8 13.9 1 1000 242 15 17 -4.4 -16.4 | 52 5 -3.6 -2.8 2 992 305 15 21 -5.4 -20.3 | 35 8 -4.7 -6.7 3 957 610 35 25 -14.3 -20.5 | 63 15 -13.6 -6.9 4 925 887 45 21 -14.8 -14.8 | 85 14 -14.1 -1.2 5 922 914 45 20 -14.1 -14.1 | 88 13 -13.4 -0.5 6 888 1219 20 15 -5.1 -14.1 | 84 4 -4.4 -0.5 7 855 1524 350 14 2.4 -13.8 | 273 3 3.2 -0.2 8 850 1576 20 12 -4.1 -11.3 | 125 4 -3.3 2.3 9 824 1829 355 14 1.2 -13.9 | 280 2 2.0 -0.3 10 794 2134 350 15 2.6 -14.8 | 289 4 3.4 -1.2 11 765 2438 325 11 6.3 -9.0 | 237 8 7.1 4.6 12 737 2743 310 15 11.5 -9.6 | 252 13 12.3 4.0 13 710 3048 305 16 13.1 -9.2 | 252 15 13.9 4.4 14 700 3163 310 16 12.3 -10.3 | 256 13 13.0 3.3 15 683 3353 320 19 12.2 -14.6 | 274 13 13.0 -1.0 16 657 3658 315 20 14.1 -14.1 | 272 15 14.9 -0.5 17 632 3962 305 18 14.7 -10.3 | 258 16 15.5 3.3 18 608 4267 310 17 13.0 -10.9 | 259 14 13.8 2.7 19 585 4572 325 15 8.6 -12.3 | 262 9 9.4 1.3 20 563 4877 320 22 14.1 -16.9 | 282 15 14.9 -3.3 21 500 5800 315 24 17.0 -17.0 | 281 18 17.7 -3.4 22 480 6096 295 25 22.7 -10.6 | 263 24 23.4 3.0 23 461 6401 300 26 22.5 -13.0 | 269 23 23.3 0.6 24 400 7460 295 33 29.9 -13.9 | 271 31 30.7 -0.3 25 391 7620 295 33 29.9 -13.9 | 271 31 30.7 -0.3 26 315 9144 285 36 34.8 -9.3 | 263 36 35.5 4.3 27 300 9480 270 42 42.0 -0.0 | 252 45 42.8 13.6 28 250 10690 270 46 46.0 -0.0 | 254 49 46.8 13.6 29 239 10973 270 48 48.0 -0.0 | 254 51 48.8 13.6 30 218 11582 275 39 38.9 -3.4 | 256 41 39.6 10.2 31 212 11750 260 36 35.5 6.3 | 241 41 36.2 19.9 32 200 12120 265 38 37.9 3.3 | 246 42 38.6 16.9 33 198 12192 255 35 33.8 9.1 | 237 41 34.6 22.7 34 180 12802 280 41 40.4 -7.1 | 261 42 41.2 6.5 35 155 13716 265 47 46.8 4.1 | 250 51 47.6 17.7 36 150 13940 270 40 40.0 -0.0 | 252 43 40.8 13.6 37 148 14021 285 39 37.7 -10.1 | 265 39 38.4 3.5 38 134 14630 285 50 48.3 -12.9 | 269 49 49.1 0.7 39 128 14935 295 39 35.3 -16.5 | 275 36 36.1 -2.9 40 122 15240 290 40 37.6 -13.7 | 270 38 38.4 -0.1 41 116 15545 295 34 30.8 -14.4 | 271 32 31.6 -0.8 42 110 15850 275 32 31.9 -2.8 | 252 34 32.7 10.8 43 100 16459 300 35 30.3 -17.5 | 277 31 31.1 -3.9 44 100 16460 290 31 29.1 -10.6 | 264 30 29.9 3.0 45 95 16764 290 31 29.1 -10.6 | 264 30 29.9 3.0 46 86 17374 320 11 7.1 -8.4 | 237 9 7.8 5.2 47 82 17678 275 15 14.9 -1.3 | 232 20 15.7 12.3 48 74 18288 295 17 15.4 -7.2 | 248 17 16.2 6.4 49 70 18593 275 11 11.0 -1.0 | 223 17 11.7 12.6 50 70 18630 300 20 17.3 -10.0 | 259 18 18.1 3.6 51 67 18898 285 16 15.5 -4.1 | 240 19 16.2 9.5 52 64 19202 315 22 15.6 -15.6 | 277 16 16.3 -2.0 53 61 19507 340 10 3.4 -9.4 | 225 6 4.2 4.2 54 58 19812 255 10 9.7 2.6 | 213 19 10.4 16.2 55 55 20117 280 20 19.7 -3.5 | 244 23 20.5 10.1 56 50 20710 355 12 1.0 -12.0 | 228 2 1.8 1.6 57 50 20726 305 7 5.7 -4.0 | 214 12 6.5 9.6 58 48 21031 5 11 -1.0 -11.0 | 176 3 -0.2 2.6 59 45 21336 120 7 -6.1 3.5 | 163 18 -5.3 17.1 60 41 21946 235 16 13.1 9.2 | 211 27 13.9 22.8 61 39 22250 260 16 15.8 2.8 | 225 23 16.5 16.4 62 37 22555 270 19 19.0 -0.0 | 235 24 19.8 13.6 63 34 23165 310 13 10.0 -8.4 | 244 12 10.7 5.2 64 32 23470 305 12 9.8 -6.9 | 238 13 10.6 6.7 65 30 23920 240 9 7.8 4.5 | 205 20 8.6 18.1 66 29 24079 290 6 5.6 -2.1 | 209 13 6.4 11.5 67 28 24384 230 11 8.4 7.1 | 204 23 9.2 20.7 68 27 24689 260 16 15.8 2.8 | 225 23 16.5 16.4 69 24 25298 255 19 18.4 4.9 | 226 27 19.1 18.5 70 23 25603 270 21 21.0 -0.0 | 238 26 21.8 13.6 71 22 25908 310 13 10.0 -8.4 | 244 12 10.7 5.2 72 21 26213 300 12 10.4 -6.0 | 236 14 11.2 7.6 73 20 26518 300 13 11.3 -6.5 | 239 14 12.0 7.1 74 20 26540 310 7 5.4 -4.5 | 214 11 6.1 9.1 75 18 27127 310 6 4.6 -3.9 | 209 11 5.4 9.7 76 17 27432 275 12 12.0 -1.0 | 225 18 12.7 12.6 77 16 28042 325 19 10.9 -15.6 | 280 12 11.7 -2.0 78 15 28346 285 4 3.9 -1.0 | 200 13 4.6 12.6 79 14 28651 240 10 8.7 5.0 | 207 21 9.4 18.6 80 14 28956 210 17 8.5 14.7 | 198 30 9.3 28.3 81 13 29261 220 23 14.8 17.6 | 206 35 15.6 31.2 82 12 29870 305 16 13.1 -9.2 | 252 15 13.9 4.4 83 11 30175 100 1 -1.0 0.2 | 179 14 -0.2 13.8 84 10 31070 290 7 6.6 -2.4 | 213 13 7.4 11.2 Wind Parameters Mean winds (0-6000m): 333.3 at 18.2 knts Storm direction: 3.3 at 13.6 knts Shear (0-3000m) pos: 4.7 neg: 4.9 tot: 9.7 10-3/s Storm rel Dir Shear (0-3000m): 54.9 deg Storm rel helicity (0-3000m) pos: 69.5 neg: -11.1 tot: 58.4 m^2/s^2 ave: 19.5 10^-3 m/s^2 rel: 0.27 Storm rel vorticity (0-3000m) horiz: 15.7 stream: 4.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.53 Bulk Shear: 29.17 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 21 19 57 7| 28.3 0.0 28.3| 38.7 0.0 38.7 77.3 0.80| 39.7 31.6 1000 31 20 70 10| 14.2 4.1 18.3| 61.7 -2.1 59.5 59.5 0.71| 26.1 18.5 1500 26 18 69 8| 9.4 4.7 14.1| 61.8 -4.9 56.8 37.9 0.32| 24.1 7.7 2000 20 17 64 6| 7.1 4.5 11.6| 62.3 -4.9 57.4 28.7 0.34| 20.1 6.8 2500 13 16 53 4| 5.7 5.2 10.9| 65.1 -11.1 54.1 21.6 0.26| 17.9 4.7 3000 3 16 5 2| 4.7 4.9 9.7| 69.5 -11.1 58.4 19.5 0.27| 15.7 4.2 4000 348 17 302 5| 3.9 3.9 7.9| 86.4 -27.8 58.6 14.7 0.24| 13.2 3.2 5000 340 17 290 7| 3.6 3.5 7.1|102.0 -28.1 73.9 14.8 0.26| 11.8 3.1 6000 333 18 286 9| 3.0 3.8 6.8|102.0 -65.8 36.1 6.0 0.18| 10.8 2.0 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251009.12.gif