UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120300.upa.cvt Date: 0000Z 3 DEC 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 3 DEC 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 ------------------------------------------------------------------------------- 0 1000 74 330 6 SFC 998 98 4.2 0.9 79 3.3 2.8 330 6 277.5 278.2 276.0 288.7 4.09 2 925 703 -0.3 -1.7 90 1.4 -0.9 315 31 279.0 279.6 276.2 289.1 3.65 3 872 1172 -4.3 -4.3 100 0.0 -4.3 315 41 279.6 280.1 275.9 288.5 3.18 4 866 1227 -4.5 -5.4 93 0.9 -4.8 315 42 279.9 280.4 275.7 288.2 2.95 5 850 1374 -3.3 -7.0 76 3.7 -4.6 315 42 282.7 283.1 276.8 290.3 2.66 6 848 1393 -2.9 -6.9 74 4.0 -4.4 314 42 283.3 283.8 277.2 291.0 2.68 7 842 1449 -2.5 -6.3 75 3.8 -3.9 312 40 284.3 284.8 277.9 292.4 2.83 8 821 1649 -4.3 -6.8 83 2.5 -5.2 298 37 284.5 284.9 277.9 292.5 2.79 9 817 1687 -3.7 -6.8 79 3.1 -4.8 294 36 285.5 286.0 278.4 293.6 2.81 10 815 1707 -1.7 -6.7 69 5.0 -3.6 292 36 287.8 288.3 279.6 296.1 2.84 11 813 1726 -1.5 -6.5 69 5.0 -3.4 290 36 288.2 288.7 279.8 296.6 2.89 12 811 1746 -1.3 -7.3 64 6.0 -3.6 288 35 288.6 289.1 279.8 296.6 2.72 13 807 1785 0.6 -7.4 55 8.0 -2.5 284 35 291.1 291.5 280.9 299.1 2.71 14 803 1825 1.0 -7.0 55 8.0 -2.1 280 34 291.9 292.4 281.4 300.2 2.81 15 792 1936 0.2 -6.8 59 7.0 -2.6 278 33 292.2 292.7 281.7 300.8 2.90 16 766 2203 -0.9 -9.9 50 9.0 -4.2 273 31 293.8 294.2 281.7 300.9 2.35 17 763 2234 -0.3 -12.3 40 12.0 -4.5 272 31 294.8 295.1 281.7 300.7 1.95 18 756 2308 0.0 -14.0 34 14.0 -4.7 269 30 295.9 296.2 281.8 301.2 1.71 19 744 2436 -0.9 -16.9 29 16.0 -5.9 265 28 296.3 296.5 281.5 300.5 1.37 20 728 2609 -1.9 -19.9 24 18.0 -7.1 265 29 297.0 297.2 281.5 300.5 1.08 21 700 2919 -4.5 -23.5 21 19.0 -9.4 265 31 297.5 297.6 281.4 300.1 0.82 22 695 2975 -4.9 -23.9 21 19.0 -9.6 265 32 297.7 297.8 281.4 300.2 0.80 23 669 3274 -6.1 -38.1 6 32.0 -11.7 263 36 299.6 299.6 281.5 300.3 0.21 24 635 3680 -8.3 -45.3 3 37.0 -13.6 260 41 301.6 301.6 282.1 302.0 0.11 25 632 3716 -7.9 -46.9 3 39.0 -13.4 258 42 302.4 302.5 282.5 302.8 0.09 26 604 4067 -9.5 -44.5 4 35.0 -14.6 246 46 304.5 304.6 283.4 305.0 0.12 27 579 4391 -12.3 -41.3 7 29.0 -16.6 250 48 305.0 305.0 283.7 305.6 0.18 28 522 5172 -19.3 -35.3 23 16.0 -21.7 250 52 305.7 305.8 284.2 307.0 0.36 29 500 5490 -21.9 -38.9 20 17.0 -24.1 250 54 306.3 306.4 284.3 307.3 0.26 30 490 5639 -21.5 -46.5 9 25.0 -24.1 249 57 308.6 308.6 284.9 309.0 0.12 31 472 5914 -22.5 -49.5 7 27.0 -25.1 247 64 310.7 310.7 285.7 311.0 0.09 32 436 6491 -26.9 -51.9 8 25.0 -28.8 243 70 312.2 312.2 286.2 312.5 0.07 33 433 6541 -26.5 -54.5 5 28.0 -28.6 243 70 313.4 313.4 286.6 313.6 0.05 34 412 6899 -28.3 -58.3 4 30.0 -30.2 241 72 315.5 315.5 287.3 315.7 0.04 35 400 7110 -30.1 -59.1 4 29.0 -31.8 240 73 315.9 315.9 287.4 316.0 0.03 36 369 7680 -34.5 -61.5 5 27.0 -35.7 250 78 317.4 317.4 287.9 317.5 0.03 37 354 7971 -33.7 -63.7 3 30.0 -35.1 249 85 322.3 322.3 289.5 322.3 0.02 38 305 9007 -38.7 -67.7 3 29.0 -39.7 236 82 329.3 329.3 291.5 329.3 0.01 39 300 9120 -39.7 -68.7 3 29.0 -40.6 235 84 329.4 329.4 291.6 329.5 0.01 40 253 10261 -47.1 -71.1 5 24.0 -47.6 244 92 334.9 334.9 293.0 334.9 0.01 41 250 10340 -46.7 -72.7 4 26.0 -47.3 245 93 336.6 336.6 293.5 336.7 0.01 42 220 11182 -50.5 -75.6 4 25.1 -50.9 250 100 343.3 343.3 295.1 343.3 0.01 43 217 11272 -50.9 -75.9 4 25.0 -51.3 250 100 344.0 344.0 295.3 344.1 0.01 44 215 11332 -50.9 -76.9 3 26.0 -51.3 251 98 345.0 345.0 295.5 345.0 0.01 45 200 11800 -54.1 -78.1 4 24.0 -54.4 255 83 347.1 347.1 296.0 347.1 0.00 46 195 11961 -55.1 -78.1 4 23.0 -55.4 250 83 348.0 348.0 296.2 348.0 0.00 47 192 12060 -54.7 -79.7 3 25.0 -55.0 249 84 350.2 350.2 296.7 350.2 0.00 48 181 12433 -57.7 -79.7 4 22.0 -57.9 247 87 351.3 351.3 296.9 351.3 0.00 49 179 12502 -56.7 -80.7 3 24.0 -56.9 247 87 354.0 354.0 297.5 354.0 0.00 50 160 13208 -58.3 -83.3 3 25.0 -58.5 248 81 362.9 362.9 299.2 362.9 0.00 51 150 13610 -60.5 -83.5 3 23.0 -60.7 250 79 365.9 365.9 299.8 365.9 0.00 52 148 13694 -60.9 -83.9 3 23.0 -61.1 252 80 366.6 366.6 299.9 366.6 0.00 53 143 13909 -59.9 -84.9 2 25.0 -60.1 257 83 371.9 371.9 300.9 371.9 0.00 54 132 14411 -59.7 -85.7 2 26.0 -59.9 260 73 380.9 380.9 302.4 380.9 0.00 55 131 14459 -59.5 -85.5 2 26.0 -59.7 260 72 382.1 382.1 302.6 382.1 0.00 56 130 14507 -59.3 -85.3 2 26.0 -59.6 260 71 383.3 383.3 302.8 383.3 0.00 57 129 14556 -59.3 -85.3 2 26.0 -59.6 260 69 384.1 384.1 302.9 384.1 0.00 58 128 14605 -59.3 -85.3 2 26.0 -59.6 260 68 385.0 385.0 303.1 385.0 0.00 59 110 15546 -64.7 -85.7 4 21.0 -64.8 255 70 391.9 391.9 304.0 391.9 0.00 60 100 16130 -64.3 -87.3 3 23.0 -64.5 265 62 403.5 403.5 305.7 403.5 0.00 61 94 16509 -62.9 -87.9 2 25.0 -63.1 265 61 413.4 413.4 306.9 413.5 0.00 62 87 16984 -64.3 -87.3 3 23.0 -64.5 261 63 419.9 419.9 307.7 419.9 0.00 63 83 17273 -62.1 -88.1 2 26.0 -62.4 260 57 430.1 430.1 308.9 430.1 0.00 64 78 17655 -63.7 -88.7 2 25.0 -63.9 260 47 434.5 434.5 309.3 434.5 0.00 65 70 18320 -62.5 -88.5 2 26.0 -62.8 270 54 450.7 450.7 310.9 450.7 0.00 66 68 18499 -62.7 -88.7 2 26.0 -63.0 270 54 454.0 454.0 311.3 454.0 0.00 67 66 18684 -58.7 -87.7 1 29.0 -59.2 275 52 466.6 466.6 312.4 466.6 0.00 68 63 18975 -60.7 -87.7 2 27.0 -61.1 282 42 468.4 468.4 312.5 468.4 0.00 69 62 19075 -59.9 -87.9 1 28.0 -60.4 279 35 472.4 472.4 312.8 472.4 0.00 70 56 19707 -62.1 -88.1 2 26.0 -62.5 275 19 481.3 481.3 313.5 481.3 0.00 71 55 19818 -62.1 -88.1 2 26.0 -62.5 278 18 483.8 483.8 313.7 483.8 0.00 72 55 19818 -60.9 -87.9 2 27.0 -61.4 278 18 486.5 486.5 314.0 486.5 0.00 73 53 20047 -62.3 -88.3 2 26.0 -62.7 283 18 488.5 488.5 314.1 488.5 0.00 74 51 20286 -59.7 -88.7 1 29.0 -60.3 291 21 500.0 500.0 314.9 500.0 0.00 75 50 20410 -59.7 -88.7 1 29.0 -60.3 295 23 502.8 502.8 315.1 502.8 0.00 76 47 20797 -58.3 -88.3 1 30.0 -59.0 298 25 515.1 515.1 316.0 515.1 0.00 77 46 20932 -58.7 -88.7 1 30.0 -59.5 312 22 517.3 517.3 316.1 517.4 0.00 78 45 21070 -56.7 -87.7 1 31.0 -57.6 327 20 525.5 525.5 316.6 525.5 0.00 79 43 21356 -58.9 -87.9 1 29.0 -59.6 355 15 526.9 526.9 316.7 526.9 0.00 80 42 21504 -57.5 -87.5 1 30.0 -58.4 355 14 533.9 534.0 317.2 534.0 0.00 81 31 23406 -60.1 -89.1 1 29.0 -61.0 326 10 575.4 575.4 319.5 575.4 0.00 82 30 23610 -60.3 -88.3 1 28.0 -61.2 160 6 580.3 580.3 319.7 580.3 0.01 83 27 24266 -62.1 -90.1 1 28.0 -62.9 228 8 592.9 592.9 320.3 593.0 0.00 84 26 24501 -59.7 -89.7 1 30.0 -60.8 270 9 606.2 606.2 320.9 606.2 0.00 85 20 26150 -58.5 -87.5 1 29.0 -60.0 360 6 657.1 657.1 323.0 657.2 0.01 86 19 26473 -58.9 -87.9 1 29.0 -60.4 5 8 665.6 665.6 323.3 665.6 0.01 87 17 27181 -53.5 -86.5 1 33.0 -56.4 325 3 704.4 704.4 324.6 704.5 0.01 88 16 27569 -55.9 -86.9 1 31.0 -58.3 325 10 708.9 708.9 324.7 709.0 0.01 89 13 28901 -52.9 -85.9 1 33.0 -56.6 289 10 762.7 762.7 326.3 762.8 0.02 90 12 29422 -49.9 -84.9 1 35.0 -54.8 8 18 790.9 791.0 327.0 791.2 0.02 91 10 30610 -51.7 -84.7 1 33.0 -56.5 35 22 826.6 826.6 327.9 826.8 0.03 92 9.1 31224 -49.5 -84.5 1 35.0 -55.5 26 25 857.6 857.6 328.5 857.9 0.03 93 7.3 32658 -52.1 -85.1 1 33.0 -57.8 4 32 902.8 902.8 329.5 903.2 0.04 94 7.0 32930 -50.9 -84.9 1 34.0 -57.2 360 33 918.6 918.7 329.8 919.1 0.04 95 6.9 33024 -51.1 -85.1 1 34.0 -57.4 921.6 921.6 329.8 922.0 0.04 TRP 110 15546 -64.7 -85.7 4 21.0 -64.8 255 70 391.9 391.9 304.0 391.9 0.00 WND 220 11182 -50.5 -75.6 4 25.1 -50.9 250 100 343.3 343.3 295.1 343.3 0.01 Sounding variables and indices 1000-500 mb thick: 5416.00 m Freezing level: 929.87 mb = 662.67 m = 2174.08 ft Freezing level: 808.26 mb = 1772.76 m = 5816.08 ft Freezing level: 787.27 mb = 1984.32 m = 6510.15 ft Freezing level: 756.00 mb = 2307.73 m = 7571.21 ft Freezing level: 756.00 mb = 2307.73 m = 7571.21 ft Wetbulb zero: 942.26 mb = 555.72 m = 1823.20 ft Precipitable water: 0.36 inches Sfc-500 mean rel hum: 39.51 % Est. max temperature: 9.99 C = 49.98 F Sfc-Lift cond lev (LCL): 948.40 mb = 504.00 m = 1653.54 ft T: 1.18 C 700-500 lapse rate: 6.77 C/km ThetaE index: 1.03 C Layer 744.0- 695.0 mb Conv cond level (CCL): 908.85 mb = 843.03 m = 2765.82 ft Mean mixing ratio: 3.77 g/kg Conv temperature: 5.87 C = 42.57 F Cap Strength: 15.68 C Lifted Index: 15.11 C Risk: None Lifted Index @300 mb: 28.72 C Lifted Index @700 mb: 11.83 C Showalter Index: 14.12 C Risk: None Total Totals Index: 33.50 C Risk: None Vertical Totals Index: 18.60 C Cross Totals Index: 14.90 C K Index: -7.40 Risk: None Sweat Index: 138.00 Risk: None Energy Index: 3.70 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.21 J/kg Max Up Vert Vel: 3.52 m/s Conv Inhibition (B-): 3.82 J/kg Cap Strength: 15.67 C Lift Cond Lev (LCL): 918.10 mb = 762.57 m = 2501.84 ft Lev Free Conv (LFC): 883.10 mb = 1071.61 m = 3515.74 ft Equ Level (EL): 863.10 mb = 1253.16 m = 4111.38 ft B at Equ Level: 4.74 J/kg Max Parcel Lev (MPL): 853.10 mb = 1345.26 m = 4413.54 ft Wind level data Storm motion: 296 at 30 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 ---------------------------------------------------------- 0 998 98 330 6 3.0 -5.2 | 109 26 -24.3 8.3 1 972 305 325 21 12.0 -17.2 | 76 16 -15.2 -3.7 2 936 610 315 27 19.1 -19.1 | 56 10 -8.2 -5.6 3 925 703 315 31 21.9 -21.9 | 33 10 -5.4 -8.4 4 901 914 315 37 26.2 -26.2 | 5 13 -1.1 -12.6 5 867 1219 315 42 29.7 -29.7 | 351 16 2.4 -16.2 6 850 1374 315 42 29.7 -29.7 | 351 16 2.4 -16.2 7 834 1524 310 39 29.9 -25.1 | 347 12 2.6 -11.5 8 803 1829 280 34 33.5 -5.9 | 219 10 6.2 7.6 9 773 2134 275 32 31.9 -2.8 | 203 12 4.6 10.7 10 744 2438 265 28 27.9 2.4 | 182 16 0.6 16.0 11 716 2743 265 30 29.9 2.6 | 189 16 2.6 16.1 12 700 2919 265 31 30.9 2.7 | 193 17 3.6 16.2 13 636 3658 260 41 40.4 7.1 | 212 24 13.1 20.6 14 611 3962 245 45 40.8 19.0 | 203 35 13.5 32.5 15 587 4267 250 48 45.1 16.4 | 211 35 17.8 29.9 16 542 4877 250 50 47.0 17.1 | 213 36 19.7 30.6 17 500 5490 250 54 50.7 18.5 | 216 40 23.5 32.0 18 460 6096 245 68 61.6 28.7 | 219 54 34.4 42.3 19 400 7110 240 73 63.2 36.5 | 216 62 35.9 50.0 20 372 7620 250 76 71.4 26.0 | 228 59 44.1 39.5 21 356 7925 250 86 80.8 29.4 | 231 69 53.5 42.9 22 326 8534 240 76 65.8 38.0 | 217 64 38.5 51.5 23 300 9120 235 84 68.8 48.2 | 214 74 41.5 61.7 24 299 9144 235 84 68.8 48.2 | 214 74 41.5 61.7 25 250 10340 245 93 84.3 39.3 | 227 78 57.0 52.8 26 220 11182 250 100 94.0 34.2 | 234 82 66.7 47.7 27 217 11278 250 100 94.0 34.2 | 234 82 66.7 47.7 28 200 11800 255 83 80.2 21.5 | 237 63 52.9 35.0 29 197 11887 250 83 78.0 28.4 | 230 66 50.7 41.9 30 171 12802 245 89 80.7 37.6 | 226 74 53.4 51.1 31 155 13411 250 77 72.4 26.3 | 229 60 45.1 39.9 32 150 13610 250 79 74.2 27.0 | 229 62 47.0 40.5 33 140 14021 260 84 82.7 14.6 | 243 62 55.4 28.1 34 121 14935 260 59 58.1 10.2 | 232 39 30.8 23.8 35 116 15240 255 63 60.9 16.3 | 228 45 33.6 29.8 36 110 15546 255 70 67.6 18.1 | 232 51 40.3 31.6 37 105 15850 255 70 67.6 18.1 | 232 51 40.3 31.6 38 100 16130 265 62 61.8 5.4 | 241 39 34.5 18.9 39 100 16154 260 58 57.1 10.1 | 232 38 29.8 23.6 40 95 16459 265 61 60.8 5.3 | 241 38 33.5 18.8 41 86 17069 260 63 62.0 10.9 | 235 43 34.8 24.5 42 78 17678 260 46 45.3 8.0 | 220 28 18.0 21.5 43 70 18288 265 52 51.8 4.5 | 234 30 24.5 18.1 44 70 18320 270 54 54.0 -0.0 | 243 30 26.7 13.5 45 67 18593 270 54 54.0 -0.0 | 243 30 26.7 13.5 46 64 18898 285 47 45.4 -12.2 | 266 18 18.1 1.4 47 61 19202 275 26 25.9 -2.3 | 173 11 -1.4 11.3 48 58 19507 270 19 19.0 -0.0 | 149 16 -8.3 13.5 49 52 20117 285 18 17.4 -4.7 | 132 13 -9.9 8.9 50 50 20410 295 23 20.8 -9.7 | 121 7 -6.4 3.8 51 50 20422 275 21 20.9 -1.8 | 151 13 -6.4 11.7 52 48 20726 290 26 24.4 -8.9 | 148 5 -2.8 4.6 53 43 21336 355 15 1.3 -14.9 | 87 26 -26.0 -1.4 54 39 21946 355 10 0.9 -10.0 | 98 27 -26.4 3.6 55 34 22860 205 1 0.4 0.9 | 118 30 -26.9 14.4 56 32 23165 310 10 7.7 -6.4 | 110 21 -19.6 7.1 57 31 23470 330 10 5.0 -8.7 | 102 23 -22.3 4.9 58 30 23610 160 6 -2.1 5.6 | 123 35 -29.3 19.2 59 27 24384 240 8 6.9 4.0 | 131 27 -20.3 17.5 60 25 24689 315 10 7.1 -7.1 | 108 21 -20.2 6.4 61 24 24994 340 20 6.8 -18.8 | 76 21 -20.4 -5.3 62 22 25603 340 11 3.8 -10.3 | 98 24 -23.5 3.2 63 21 25908 320 14 9.0 -10.7 | 99 18 -18.3 2.8 64 20 26150 360 6 -0.0 -6.0 | 105 28 -27.3 7.5 65 20 26213 15 11 -2.8 -10.6 | 95 30 -30.1 2.9 66 17 27127 340 1 0.3 -0.9 | 115 30 -26.9 12.6 67 16 27432 275 11 11.0 -1.0 | 128 21 -16.3 12.6 68 16 27737 15 10 -2.6 -9.7 | 97 30 -29.9 3.9 69 14 28346 5 12 -1.0 -12.0 | 93 28 -28.3 1.6 70 14 28651 285 12 11.6 -3.1 | 124 19 -15.7 10.4 71 13 28956 290 10 9.4 -3.4 | 119 21 -17.9 10.1 72 12 29261 345 16 4.1 -15.5 | 85 23 -23.1 -1.9 73 12 29566 25 19 -8.0 -17.2 | 84 35 -35.3 -3.7 74 11 30175 40 20 -12.9 -15.3 | 87 40 -40.1 -1.8 75 10 30610 35 22 -12.6 -18.0 | 84 40 -39.9 -4.5 76 7 32930 360 33 -0.0 -33.0 | 54 34 -27.3 -19.5 Wind Parameters Mean winds (0-6000m): 266.4 at 40.6 knts Storm direction: 296.4 at 30.4 knts Shear (0-3000m) pos: 0.0 neg: 5.4 tot: 5.4 10-3/s Storm rel Dir Shear (0-3000m): 90.2 deg Storm rel helicity (0-3000m) pos: 20.1 neg: -174.1 tot: -154.0 m^2/s^2 ave: -51.3 10^-3 m/s^2 rel: -0.65 Storm rel vorticity (0-3000m) horiz: 13.3 stream: -8.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.04 Bulk Shear: 148.36 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 ------------------------------------------------------------------------------- 500 321 20 83 15| 0.0 21.6 21.6| 0.0 -73.0 -73.0 -146.0 -0.70| 22.8-16.0 1000 317 27 54 11| 0.0 17.6 17.6| 0.0-107.2-107.2 -107.2 -0.77| 18.2-14.0 1500 316 32 29 10| 0.0 11.2 11.2| 0.0-125.6-125.6 -83.7 -0.71| 16.1-11.4 2000 308 32 15 6| 0.0 7.5 7.5| 0.0-156.6-156.6 -78.3 -0.76| 16.8-12.8 2500 301 32 357 3| 0.0 5.6 5.6| 2.8-174.1-171.4 -68.6 -0.74| 15.0-11.1 3000 295 32 257 2| 0.0 5.4 5.4| 20.1-174.1-154.0 -51.3 -0.65| 13.3 -8.6 4000 282 34 223 8| 0.0 5.9 5.9| 59.3-206.9-147.6 -36.9 -0.49| 12.7 -6.2 5000 273 37 220 15| 0.4 5.0 5.3|105.4-206.9-101.5 -20.3 -0.41| 10.8 -4.5 6000 266 41 219 21| 0.3 5.6 5.9|147.1-206.9 -59.8 -10.0 -0.32| 10.5 -3.4 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251203.00.gif