UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101100.upa.cvt Date: 0000Z 11 OCT 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 11 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 1016 98 15.8 7.8 59 8.0 11.3 140 9 287.6 288.8 283.8 306.1 6.54 1 1000 221 14.8 6.8 59 8.0 10.4 150 16 288.0 289.0 283.6 305.5 6.20 2 925 874 9.0 4.0 71 5.0 6.4 155 12 288.5 289.5 283.1 304.2 5.51 3 924 883 9.0 4.0 71 5.0 6.4 155 12 288.6 289.6 283.1 304.3 5.52 4 850 1567 2.4 1.8 96 0.6 2.1 200 9 288.7 289.6 282.7 303.3 5.13 5 845 1615 2.0 1.8 99 0.2 1.9 200 11 288.7 289.6 282.8 303.4 5.16 6 840 1662 1.8 0.8 93 1.0 1.3 200 13 289.0 289.9 282.5 302.8 4.83 7 834 1721 5.2 -10.8 30 16.0 -0.7 200 16 293.2 293.5 281.0 299.3 2.01 8 833 1730 6.6 -17.4 16 24.0 -1.3 200 17 294.8 295.0 280.6 298.4 1.17 9 832 1740 7.8 -26.2 7 34.0 -1.6 200 17 296.1 296.2 280.4 297.9 0.54 10 825 1810 8.2 -34.8 3 43.0 -1.9 200 20 297.3 297.3 280.5 298.1 0.24 11 783 2240 7.2 -34.8 3 42.0 -2.7 207 15 300.7 300.7 282.0 301.5 0.25 12 763 2453 8.0 -39.0 2 47.0 -2.6 231 12 303.8 303.8 283.1 304.4 0.17 13 700 3158 4.4 260 12 307.4 14 686 3322 3.6 -43.4 2 47.0 -5.8 256 13 308.2 308.3 284.8 308.7 0.12 15 591 4513 -4.9 -43.9 3 39.0 -11.6 221 13 311.8 311.8 286.1 312.3 0.13 16 585 4593 -5.5 -26.5 17 21.0 -10.9 220 12 312.0 312.1 286.9 314.6 0.75 17 579 4674 -5.9 -37.9 6 32.0 -12.1 228 13 312.5 312.5 286.5 313.4 0.25 18 576 4715 -6.1 -28.1 16 22.0 -11.5 232 13 312.7 312.8 287.1 315.0 0.66 19 552 5047 -7.3 -34.3 10 27.0 -13.0 255 12 315.1 315.2 287.6 316.5 0.38 20 504 5749 -12.7 -31.7 19 19.0 -16.7 246 11 316.8 316.9 288.3 318.7 0.53 21 500 5810 -13.1 -33.1 17 20.0 -17.1 250 11 317.1 317.2 288.3 318.7 0.47 22 471 6262 -15.5 -40.5 10 25.0 -19.4 249 13 319.6 319.6 288.9 320.4 0.24 23 400 7470 -25.5 -46.5 12 21.0 -27.7 245 14 321.8 321.9 289.5 322.4 0.15 24 349 8439 -33.9 -49.9 18 16.0 -35.1 236 14 323.3 323.3 289.9 323.7 0.11 25 311 9235 -39.7 -57.7 13 18.0 -40.5 262 21 326.0 326.0 290.6 326.2 0.05 26 300 9480 -40.9 -59.9 11 19.0 -41.6 255 26 327.7 327.7 291.1 327.9 0.04 27 295 9594 -41.5 -62.5 8 21.0 -42.2 254 28 328.4 328.5 291.3 328.6 0.03 28 250 10700 -48.3 -65.3 12 17.0 -48.7 240 54 334.3 334.3 292.9 334.4 0.02 29 219 11561 -53.8 -68.7 15 14.9 -54.0 235 94 338.7 338.7 294.0 338.8 0.02 30 207 11921 -56.1 -70.1 16 14.0 -56.3 236 92 340.6 340.6 294.5 340.6 0.01 31 204 12014 -55.3 -73.3 9 18.0 -55.5 240 85 343.2 343.2 295.1 343.3 0.01 32 200 12140 -55.9 -73.9 9 18.0 -56.1 245 77 344.2 344.2 295.3 344.3 0.01 33 191 12431 -57.5 -74.5 10 17.0 -57.7 245 69 346.2 346.2 295.8 346.3 0.01 34 179 12842 -55.7 -78.7 4 23.0 -56.0 251 61 355.7 355.7 297.8 355.7 0.00 35 150 13960 -58.3 -81.3 4 23.0 -58.5 255 36 369.6 369.6 300.5 369.7 0.00 36 138 14484 -59.1 -84.1 3 25.0 -59.3 255 30 377.1 377.1 301.8 377.2 0.00 37 129 14906 -60.1 -85.1 2 25.0 -60.3 255 30 382.7 382.7 302.7 382.7 0.00 38 108 16002 -65.3 -85.3 5 20.0 -65.4 255 26 392.8 392.8 304.2 392.8 0.00 39 104 16231 -65.9 -85.9 5 20.0 -66.0 255 27 395.9 395.9 304.6 395.9 0.00 40 100 16470 -65.3 -86.3 4 21.0 -65.4 270 34 401.6 401.6 305.4 401.6 0.00 41 90 17106 -67.1 -87.1 4 20.0 -67.2 284 25 410.3 410.3 306.5 410.3 0.00 42 83 17594 -66.1 -87.1 4 21.0 -66.2 268 23 421.9 421.9 307.9 421.9 0.00 43 78 17967 -68.1 -88.1 4 20.0 -68.2 284 32 425.3 425.3 308.3 425.3 0.00 44 76 18123 -67.9 -88.9 3 21.0 -68.0 283 30 428.9 428.9 308.7 428.9 0.00 45 75 18203 -65.5 -88.5 3 23.0 -65.7 281 28 435.6 435.6 309.4 435.6 0.00 46 71 18534 -66.5 -89.5 3 23.0 -66.7 299 25 440.3 440.3 309.9 440.3 0.00 47 70 18620 -65.3 -89.3 2 24.0 -65.5 305 24 444.7 444.7 310.3 444.7 0.00 48 67 18889 -62.7 -88.7 2 26.0 -63.0 310 23 455.9 455.9 311.4 455.9 0.00 49 65 19076 -63.3 -89.3 2 26.0 -63.6 304 18 458.6 458.6 311.7 458.6 0.00 50 62 19369 -61.5 -88.5 2 27.0 -61.9 275 15 468.8 468.8 312.5 468.8 0.00 51 52 20457 -63.5 -89.5 2 26.0 -63.8 275 22 488.3 488.3 314.1 488.3 0.00 52 50 20700 -61.1 -89.1 1 28.0 -61.6 285 20 499.5 499.5 314.9 499.5 0.00 53 49 20825 -60.5 -88.5 1 28.0 -61.0 286 18 503.8 503.8 315.2 503.8 0.00 54 47 21083 -61.5 -89.5 1 28.0 -62.0 275 17 507.5 507.5 315.5 507.5 0.00 55 44 21495 -57.5 -88.5 1 31.0 -58.4 284 18 526.9 526.9 316.7 526.9 0.00 56 43 21640 -58.1 -88.1 1 30.0 -58.9 299 18 528.9 528.9 316.9 528.9 0.00 57 42 21789 -55.3 -87.3 1 32.0 -56.5 290 17 539.4 539.4 317.5 539.4 0.00 58 40 22099 -55.3 -87.3 1 32.0 -56.5 291 20 547.0 547.0 317.9 547.0 0.00 59 33 23317 -57.9 -87.9 1 30.0 -59.0 302 11 571.0 571.0 319.2 571.0 0.01 60 30 23920 -55.3 -87.3 1 32.0 -56.8 310 15 593.9 593.9 320.3 593.9 0.01 61 28 24362 -53.7 -86.7 1 33.0 -55.6 304 14 610.2 610.2 321.0 610.2 0.01 62 26 24839 -54.1 -86.1 1 32.0 -56.1 301 16 622.1 622.1 321.6 622.2 0.01 63 25 25092 -51.5 -85.5 1 34.0 -54.1 285 18 636.6 636.6 322.2 636.7 0.01 64 24 25358 -51.3 -85.3 1 34.0 -54.0 246 21 644.6 644.6 322.5 644.7 0.01 65 21 26223 -52.7 -85.7 1 33.0 -55.4 286 23 665.5 665.5 323.3 665.6 0.01 66 20 26540 -50.9 -84.9 1 34.0 -54.1 305 24 680.4 680.4 323.8 680.5 0.01 67 18 27229 -49.3 -84.3 1 35.0 -53.3 301 21 706.2 706.2 324.6 706.4 0.02 68 17 27603 -49.9 -84.9 1 35.0 -53.8 279 20 716.0 716.0 324.9 716.1 0.02 69 15 28430 -45.3 -83.3 1 38.0 -51.3 290 21 757.3 757.3 326.1 757.6 0.03 70 14 28888 -47.5 -83.5 1 36.0 -52.9 270 16 765.0 765.0 326.4 765.2 0.03 71 12 29911 -45.9 -82.9 1 37.0 -52.5 278 22 805.1 805.1 327.4 805.4 0.03 72 11 30490 -46.3 -83.3 1 37.0 -53.0 277 18 823.9 824.0 327.8 824.3 0.03 73 10 31120 -48.5 -84.5 1 36.0 -54.6 300 18 838.5 838.5 328.1 838.8 0.03 74 9.4 31529 -46.1 -83.1 1 37.0 -53.5 303 18 862.6 862.6 328.7 863.0 0.04 75 8.8 31971 -42.7 -82.7 0 40.0 -52.1 307 18 892.2 892.2 329.2 892.7 0.05 76 8.3 32365 -42.5 -82.5 0 40.0 -52.3 310 17 908.0 908.1 329.6 908.6 0.05 77 8.1 32531 -40.3 -81.3 0 41.0 -51.4 312 17 923.1 923.1 329.9 923.8 0.07 78 7.8 32788 -39.9 -80.9 0 41.0 -51.4 314 17 934.7 934.8 330.1 935.5 0.07 79 7.1 33425 -43.9 -81.9 1 38.0 -53.7 319 17 943.7 943.8 330.2 944.5 0.07 80 7.0 33520 -44.1 -83.1 1 39.0 -53.8 320 17 946.7 946.8 330.3 947.3 0.06 81 6.7 33814 -44.5 -82.5 1 38.0 -54.2 957.0 957.0 330.5 957.7 0.07 82 6.6 33914 -43.9 -82.9 1 39.0 -54.0 963.7 963.7 330.6 964.3 0.06 TRP 191 12431 -57.5 -74.5 10 17.0 -57.7 245 69 346.2 346.2 295.8 346.3 0.01 WND 219 11561 -53.8 -68.7 15 14.9 -54.0 235 94 338.7 338.7 294.0 338.8 0.02 Sounding variables and indices 1000-500 mb thick: 5589.00 m Freezing level: 645.76 mb = 3826.62 m = 12554.37 ft Wetbulb zero: 836.17 mb = 1699.47 m = 5575.62 ft Precipitable water: 0.45 inches Sfc-500 mean rel hum: 29.03 % Est. max temperature: 16.82 C = 62.28 F Sfc-Lift cond lev (LCL): 901.12 mb = 1088.39 m = 3570.80 ft T: 7.02 C 700-500 lapse rate: 6.60 C/km ThetaE index: 5.55 C Layer 840.0- 825.0 mb Conv cond level (CCL): 867.92 mb = 1396.02 m = 4580.06 ft Mean mixing ratio: 5.90 g/kg Conv temperature: 16.82 C = 62.28 F Cap Strength: 12.43 C Lifted Index: 12.49 C Risk: None Lifted Index @300 mb: 16.33 C Lifted Index @700 mb: 11.12 C Showalter Index: 13.60 C Risk: None Total Totals Index: 30.40 C Risk: None Vertical Totals Index: 15.50 C Cross Totals Index: 14.90 C K Index: -29.66 Risk: None Sweat Index: 50.60 Risk: None Energy Index: 3.39 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.59 J/kg Max Up Vert Vel: 2.68 m/s Conv Inhibition (B-): 8.29 J/kg Cap Strength: 12.44 C Lift Cond Lev (LCL): 873.87 mb = 1340.10 m = 4396.59 ft Lev Free Conv (LFC): 858.87 mb = 1481.98 m = 4862.08 ft Equ Level (EL): 838.87 mb = 1673.39 m = 5490.05 ft B at Equ Level: -1.28 J/kg Max Parcel Lev (MPL): 838.87 mb = 1673.39 m = 5490.05 ft Wind level data Storm motion: 249 at 10 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 1016 98 140 9 -5.8 6.9 | 103 15 -14.7 3.4 1 1000 221 150 16 -8.0 13.9 | 122 20 -16.9 10.4 2 990 305 150 16 -8.0 13.9 | 122 20 -16.9 10.4 3 955 610 150 14 -7.0 12.1 | 119 18 -15.9 8.7 4 925 874 155 12 -5.1 10.9 | 118 16 -14.0 7.4 5 920 914 155 11 -4.6 10.0 | 116 15 -13.5 6.5 6 887 1219 170 11 -1.9 10.8 | 124 13 -10.8 7.4 7 854 1524 195 9 2.3 8.7 | 129 8 -6.6 5.2 8 850 1567 200 9 3.1 8.5 | 131 8 -5.8 5.0 9 823 1829 200 21 7.2 19.7 | 174 16 -1.7 16.3 10 793 2134 195 16 4.1 15.5 | 158 13 -4.8 12.0 11 764 2438 230 12 9.2 7.7 | 184 4 0.3 4.3 12 736 2743 255 13 12.6 3.4 | 271 4 3.7 -0.1 13 709 3048 250 9 8.5 3.1 | 50 1 -0.4 -0.4 14 700 3158 260 12 11.8 2.1 | 295 3 2.9 -1.4 15 683 3353 255 13 12.6 3.4 | 271 4 3.7 -0.1 16 657 3658 250 13 12.2 4.4 | 253 3 3.3 1.0 17 632 3962 220 12 7.7 9.2 | 168 6 -1.2 5.7 18 608 4267 225 14 9.9 9.9 | 189 7 1.0 6.5 19 585 4572 220 12 7.7 9.2 | 168 6 -1.2 5.7 20 563 4877 250 14 13.2 4.8 | 253 4 4.3 1.3 21 541 5182 260 11 10.8 1.9 | 308 2 1.9 -1.5 22 501 5791 245 11 10.0 4.6 | 222 2 1.1 1.2 23 500 5810 250 11 10.3 3.8 | 258 1 1.4 0.3 24 481 6096 255 12 11.6 3.1 | 277 3 2.7 -0.3 25 443 6706 230 17 13.0 10.9 | 209 9 4.1 7.5 26 408 7315 230 15 11.5 9.6 | 203 7 2.6 6.2 27 400 7470 245 14 12.7 5.9 | 237 5 3.8 2.5 28 392 7620 245 14 12.7 5.9 | 237 5 3.8 2.5 29 343 8534 235 14 11.5 8.0 | 209 5 2.6 4.6 30 329 8839 265 17 16.9 1.5 | 284 8 8.0 -2.0 31 315 9144 265 19 18.9 1.7 | 280 10 10.0 -1.8 32 300 9480 255 26 25.1 6.7 | 259 17 16.2 3.3 33 251 10668 245 46 41.7 19.4 | 244 36 32.8 16.0 34 250 10700 240 54 46.8 27.0 | 238 45 37.9 23.6 35 219 11561 235 94 77.0 53.9 | 233 85 68.1 50.5 36 208 11887 235 94 77.0 53.9 | 233 85 68.1 50.5 37 200 12140 245 77 69.8 32.5 | 244 67 60.9 29.1 38 191 12431 245 69 62.5 29.2 | 244 59 53.6 25.7 39 156 13716 265 45 44.8 3.9 | 269 36 35.9 0.5 40 150 13960 255 36 34.8 9.3 | 257 27 25.9 5.9 41 135 14630 255 28 27.0 7.2 | 258 19 18.2 3.8 42 122 15240 255 33 31.9 8.5 | 258 24 23.0 5.1 43 116 15545 270 30 30.0 -0.0 | 279 21 21.1 -3.4 44 105 16154 250 25 23.5 8.6 | 251 15 14.6 5.1 45 100 16470 270 34 34.0 -0.0 | 278 25 25.1 -3.4 46 95 16764 270 34 34.0 -0.0 | 278 25 25.1 -3.4 47 91 17069 285 25 24.1 -6.5 | 303 18 15.3 -9.9 48 82 17678 265 23 22.9 2.0 | 276 14 14.0 -1.4 49 78 17983 285 32 30.9 -8.3 | 298 25 22.0 -11.7 50 74 18288 280 27 26.6 -4.7 | 295 19 17.7 -8.1 51 70 18620 305 24 19.7 -13.8 | 328 20 10.8 -17.2 52 67 18898 310 23 17.6 -14.8 | 334 20 8.7 -18.2 53 64 19202 300 14 12.1 -7.0 | 343 11 3.2 -10.4 54 61 19507 255 16 15.5 4.1 | 264 7 6.6 0.7 55 55 20117 260 26 25.6 4.5 | 266 17 16.7 1.1 56 50 20700 285 20 19.3 -5.2 | 310 14 10.4 -8.6 57 50 20726 290 18 16.9 -6.2 | 320 13 8.0 -9.6 58 45 21336 265 17 16.9 1.5 | 284 8 8.0 -2.0 59 43 21641 300 18 15.6 -9.0 | 332 14 6.7 -12.4 60 41 21946 280 17 16.7 -3.0 | 309 10 7.8 -6.4 61 39 22250 300 22 19.1 -11.0 | 325 18 10.2 -14.4 62 37 22555 295 17 15.4 -7.2 | 329 12 6.5 -10.6 63 34 23165 305 14 11.5 -8.0 | 347 12 2.6 -11.5 64 32 23470 300 9 7.8 -4.5 | 8 8 -1.1 -7.9 65 30 23920 310 15 11.5 -9.6 | 349 13 2.6 -13.1 66 29 24079 295 15 13.6 -6.3 | 334 11 4.7 -9.8 67 28 24384 305 14 11.5 -8.0 | 347 12 2.6 -11.5 68 25 24994 300 17 14.7 -8.5 | 334 13 5.8 -11.9 69 23 25603 210 23 11.5 19.9 | 189 17 2.6 16.5 70 21 26213 285 23 22.2 -6.0 | 305 16 13.3 -9.4 71 20 26540 305 24 19.7 -13.8 | 328 20 10.8 -17.2 72 19 26822 305 27 22.1 -15.5 | 325 23 13.2 -18.9 73 18 27127 315 23 16.3 -16.3 | 340 21 7.4 -19.7 74 17 27432 275 17 16.9 -1.5 | 302 9 8.0 -4.9 75 16 28042 290 28 26.3 -9.6 | 307 22 17.4 -13.0 76 15 28346 295 23 20.8 -9.7 | 318 18 11.9 -13.2 77 15 28651 280 16 15.8 -2.8 | 312 9 6.9 -6.2 78 13 29261 255 17 16.4 4.4 | 263 8 7.5 1.0 79 13 29566 275 28 27.9 -2.4 | 287 20 19.0 -5.9 80 12 29870 280 23 22.7 -4.0 | 298 16 13.8 -7.4 81 12 30175 265 18 17.9 1.6 | 282 9 9.0 -1.9 82 10 31120 300 18 15.6 -9.0 | 332 14 6.7 -12.4 83 7 33520 320 17 10.9 -13.0 | 353 17 2.0 -16.5 Wind Parameters Mean winds (0-6000m): 218.8 at 12.7 knts Storm direction: 248.8 at 9.5 knts Shear (0-3000m) pos: 3.1 neg: 1.1 tot: 4.2 10-3/s Storm rel Dir Shear (0-3000m): -161.1 deg Storm rel helicity (0-3000m) pos: 68.6 neg: -18.1 tot: 50.5 m^2/s^2 ave: 16.8 10^-3 m/s^2 rel: 0.39 Storm rel vorticity (0-3000m) horiz: 9.2 stream: 3.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.11 Bulk Shear: 32.32 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 ------------------------------------------------------------------------------- 500 149 15 119 19| 5.6 0.0 5.6| 25.4 -4.8 20.6 41.2 0.50| 9.5 4.8 1000 152 13 119 17| 2.4 0.0 2.4| 29.4 -7.3 22.1 22.1 0.36| 7.2 2.6 1500 159 12 121 15| 3.4 0.0 3.4| 38.7 -7.3 31.4 20.9 0.40| 7.3 2.9 2000 172 14 133 15| 2.5 1.6 4.1| 56.2 -18.1 38.1 19.0 0.34| 8.9 3.0 2500 181 14 139 13| 3.6 1.3 4.9| 66.3 -18.1 48.2 19.3 0.38| 9.7 3.7 3000 190 13 146 12| 3.1 1.1 4.2| 68.6 -18.1 50.5 16.8 0.39| 9.2 3.6 4000 205 13 158 9| 2.3 1.7 4.0| 69.8 -26.4 43.4 10.9 0.20| 8.4 1.7 5000 212 13 165 8| 2.5 1.3 3.9| 80.5 -28.8 51.7 10.3 0.27| 7.9 2.2 6000 219 13 172 7| 2.2 1.2 3.5| 81.7 -29.8 52.0 8.7 0.26| 7.1 1.8 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251011.00.gif