UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120500.upa.cvt Date: 0000Z 5 DEC 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 5 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 ------------------------------------------------------------------------------- SFC 1013 98 2.2 -5.8 55 8.0 -0.7 295 4 274.3 274.7 271.8 281.1 2.44 1 1007 140 2.0 -7.0 51 9.0 -1.2 295 7 274.6 275.0 271.6 280.8 2.24 2 1000 190 1.4 -7.6 51 9.0 -1.7 295 11 274.5 274.9 271.5 280.6 2.15 3 925 812 -4.1 -9.0 69 4.9 -5.7 315 16 275.1 275.5 271.7 281.0 2.09 4 918 872 -4.5 -9.1 70 4.6 -6.0 315 17 275.3 275.7 271.8 281.2 2.09 5 886 1150 -6.7 -11.7 68 5.0 -8.1 327 23 275.8 276.1 271.6 280.8 1.76 6 874 1256 -6.3 -18.3 38 12.0 -9.2 329 26 277.3 277.5 271.4 280.4 1.03 7 869 1301 -5.1 -33.1 9 28.0 -9.9 327 27 279.0 279.1 271.1 279.9 0.27 8 863 1356 -3.5 -39.5 4 36.0 -9.0 325 28 281.3 281.3 272.2 281.7 0.14 9 856 1420 -2.9 -38.9 4 36.0 -8.7 322 30 282.5 282.6 272.9 283.0 0.15 10 850 1476 -2.5 -32.5 8 30.0 -8.1 320 31 283.5 283.6 273.7 284.5 0.29 11 823 1732 -1.5 -28.5 11 27.0 -7.4 306 30 287.2 287.3 275.9 288.6 0.44 12 781 2147 -3.5 -26.5 15 23.0 -8.7 300 29 289.4 289.5 277.2 291.2 0.56 13 742 2550 -4.5 -30.5 11 26.0 -9.8 288 33 292.6 292.7 278.6 293.9 0.41 14 713 2863 -6.7 -42.7 4 36.0 -12.0 285 34 293.5 293.5 278.6 293.9 0.12 15 700 3006 -7.3 -39.3 6 32.0 -12.4 285 34 294.4 294.4 279.1 295.0 0.18 16 671 3335 -9.7 -41.7 5 32.0 -14.3 280 34 295.3 295.3 279.4 295.8 0.15 17 662 3439 -10.1 -35.1 11 25.0 -14.3 277 37 296.0 296.0 280.0 297.0 0.29 18 656 3509 -9.5 -32.5 13 23.0 -13.7 275 40 297.4 297.5 280.8 298.7 0.38 19 648 3604 -10.1 -30.1 18 20.0 -14.0 272 43 297.8 297.9 281.1 299.4 0.48 20 620 3943 -12.7 -21.7 47 9.0 -14.9 266 49 298.6 298.8 282.2 302.1 1.09 21 614 4018 -12.9 -21.9 47 9.0 -15.1 265 49 299.2 299.4 282.4 302.7 1.08 22 609 4080 -12.9 -23.9 39 11.0 -15.4 265 50 299.9 300.1 282.5 302.9 0.91 23 585 4386 -15.5 -21.5 60 6.0 -16.9 265 55 300.3 300.6 283.0 304.1 1.17 24 581 4437 -16.1 -19.9 72 3.8 -17.0 265 56 300.2 300.5 283.2 304.5 1.36 25 580 4450 -16.1 -19.0 78 2.9 -16.9 265 56 300.4 300.7 283.4 305.0 1.47 26 571 4568 -16.5 -19.3 79 2.8 -17.2 265 59 301.3 301.5 283.7 305.9 1.45 27 553 4809 -17.9 -18.8 93 0.9 -18.1 265 66 302.4 302.7 284.3 307.4 1.57 28 549 4863 -17.7 -19.3 87 1.6 -18.1 265 67 303.2 303.5 284.6 308.1 1.51 29 545 4918 -17.5 -20.9 75 3.4 -18.3 265 68 304.1 304.4 284.7 308.4 1.33 30 544 4932 -17.5 -22.5 65 5.0 -18.7 266 68 304.3 304.5 284.6 308.0 1.15 31 542 4959 -17.1 -25.1 50 8.0 -18.8 266 69 305.1 305.2 284.6 308.1 0.92 32 534 5071 -17.9 -28.9 38 11.0 -20.0 268 70 305.4 305.5 284.4 307.6 0.66 33 500 5560 -21.5 -30.5 44 9.0 -23.0 275 75 306.8 306.9 284.9 308.9 0.60 34 499 5575 -21.5 -30.5 44 9.0 -23.0 275 76 307.0 307.1 284.9 309.1 0.60 35 483 5813 -23.3 -30.3 53 7.0 -24.5 277 84 307.7 307.8 285.2 309.8 0.64 36 471 5995 -24.3 -29.2 64 4.9 -25.1 279 90 308.6 308.8 285.7 311.1 0.72 37 459 6182 -24.5 -26.0 87 1.5 -24.8 280 97 310.7 310.9 286.8 314.0 1.00 38 451 6310 -25.3 -28.5 75 3.2 -25.9 279 101 311.2 311.4 286.7 314.0 0.81 39 441 6471 -26.5 -28.5 83 2.0 -26.8 278 107 311.7 311.9 286.9 314.5 0.83 40 439 6504 -26.7 -29.4 78 2.7 -27.2 278 108 311.9 312.0 286.9 314.5 0.76 41 434 6586 -26.7 -28.1 88 1.4 -26.9 278 111 312.9 313.1 287.4 315.9 0.87 42 428 6686 -27.3 -29.4 82 2.1 -27.6 277 115 313.4 313.5 287.5 316.1 0.78 43 422 6787 -26.7 -30.1 73 3.4 -27.3 277 118 315.4 315.6 288.1 318.0 0.74 44 413 6942 -27.9 -29.7 85 1.8 -28.2 276 124 315.8 316.0 288.3 318.6 0.79 45 406 7064 -28.5 -32.2 70 3.7 -29.0 276 128 316.6 316.7 288.3 318.8 0.63 46 405 7081 -28.5 -33.5 62 5.0 -29.2 275 129 316.8 316.9 288.3 318.8 0.56 47 401 7152 -28.5 -37.5 42 9.0 -29.6 275 131 317.7 317.8 288.5 319.1 0.38 48 400 7170 -28.5 -36.5 46 8.0 -29.5 275 132 317.9 318.0 288.6 319.5 0.42 49 385 7443 -30.3 -35.2 62 4.9 -30.9 275 139 319.1 319.2 289.0 320.9 0.50 50 381 7518 -30.1 -37.1 50 7.0 -31.0 275 141 320.3 320.4 289.3 321.8 0.42 51 377 7593 -30.7 -38.7 45 8.0 -31.6 275 143 320.5 320.5 289.3 321.8 0.36 52 374 7650 -31.1 -40.1 41 9.0 -32.1 275 144 320.7 320.7 289.3 321.8 0.31 53 371 7707 -31.5 -38.5 50 7.0 -32.3 274 145 320.9 321.0 289.5 322.2 0.37 54 364 7842 -31.9 -41.9 37 10.0 -32.9 273 147 322.1 322.2 289.7 323.1 0.26 55 362 7881 -32.1 -40.1 45 8.0 -33.0 272 148 322.3 322.4 289.8 323.5 0.32 56 300 9190 -39.3 -57.3 13 18.0 -40.2 265 162 330.0 330.0 291.7 330.2 0.06 57 250 10410 -49.1 -53.6 59 4.5 -49.3 265 174 333.1 333.1 292.7 333.5 0.10 58 208 11586 -59.3 -62.8 64 3.5 -59.4 270 180 335.0 335.1 293.1 335.2 0.04 59 200 11830 -61.5 -64.8 65 3.3 -61.6 270 173 335.4 335.4 293.2 335.5 0.03 60 193 12049 -63.1 -69.1 44 6.0 -63.1 270 161 336.2 336.2 293.4 336.3 0.02 61 150 13600 -61.1 -84.1 3 23.0 -61.3 270 131 364.8 364.8 299.6 364.8 0.00 62 100 16130 -62.7 -86.7 3 24.0 -62.9 260 81 406.6 406.6 306.1 406.6 0.00 63 96 16380 -63.5 -87.5 2 24.0 -63.7 260 81 409.8 409.8 306.5 409.8 0.00 64 95 16445 -61.7 -86.7 2 25.0 -62.0 260 81 414.6 414.6 307.1 414.6 0.00 65 86 17056 -64.1 -88.1 2 24.0 -64.3 267 90 421.7 421.7 307.9 421.7 0.00 66 85 17127 -62.7 -87.7 2 25.0 -63.0 267 91 425.9 425.9 308.4 425.9 0.00 67 82 17348 -63.1 -88.1 2 25.0 -63.3 270 95 429.5 429.5 308.8 429.5 0.00 68 79 17577 -62.5 -88.5 2 26.0 -62.8 272 82 435.4 435.4 309.4 435.4 0.00 69 74 17983 -58.9 -87.9 1 29.0 -59.3 275 58 451.1 451.2 311.0 451.2 0.00 70 70 18330 -59.7 -87.7 1 28.0 -60.2 275 46 456.7 456.7 311.5 456.7 0.00 71 53 20053 -62.9 -88.9 2 26.0 -63.3 276 38 487.1 487.1 314.0 487.1 0.00 72 50 20410 -64.7 -90.7 2 26.0 -65.0 280 47 491.0 491.0 314.3 491.0 0.00 73 46 20923 -61.9 -88.9 2 27.0 -62.4 284 45 509.6 509.6 315.6 509.6 0.00 74 41 21633 -63.5 -89.5 2 26.0 -64.0 255 23 522.7 522.7 316.5 522.7 0.00 75 39 21942 -61.1 -89.1 1 28.0 -61.7 258 26 536.3 536.3 317.3 536.3 0.00 76 37 22269 -61.9 -89.9 1 28.0 -62.5 262 29 542.4 542.4 317.6 542.4 0.00 77 37 22269 -59.7 -89.7 1 30.0 -60.5 262 29 548.0 548.0 318.0 548.0 0.00 78 36 22441 -57.3 -88.3 1 31.0 -58.3 264 31 558.5 558.5 318.6 558.6 0.00 79 30 23590 -59.1 -89.1 1 30.0 -60.1 285 22 583.5 583.5 319.8 583.6 0.00 80 29 23802 -59.1 -89.1 1 30.0 -60.2 285 22 589.2 589.2 320.1 589.2 0.00 81 27 24245 -62.1 -90.1 1 28.0 -62.9 305 22 592.9 592.9 320.3 593.0 0.00 82 26 24480 -58.5 -89.5 1 31.0 -59.7 315 21 609.6 609.6 321.0 609.6 0.00 83 25 24725 -58.5 -89.5 1 31.0 -59.8 309 18 616.5 616.5 321.3 616.5 0.01 84 24 24983 -55.9 -87.9 1 32.0 -57.6 330 18 631.3 631.3 322.0 631.3 0.01 85 23 25253 -54.9 -86.9 1 32.0 -56.9 356 19 641.9 642.0 322.4 642.0 0.01 86 21 25831 -56.9 -87.9 1 31.0 -58.6 339 10 652.8 652.8 322.8 652.9 0.01 87 20 26140 -55.5 -87.5 1 32.0 -57.6 250 8 666.3 666.3 323.3 666.4 0.01 88 18 26813 -55.9 -87.9 1 32.0 -58.1 305 10 685.4 685.4 324.0 685.5 0.01 89 16 27570 -52.9 -85.9 1 33.0 -56.1 267 17 718.7 718.7 325.0 718.8 0.02 90 15 27987 -54.1 -87.1 1 33.0 -57.1 295 7 728.1 728.1 325.3 728.2 0.01 91 14 28432 -52.3 -86.3 1 34.0 -56.0 320 21 748.7 748.7 325.9 748.8 0.02 92 14 28432 -52.5 -86.5 1 34.0 -56.1 320 21 748.0 748.0 325.9 748.1 0.02 93 13 28916 -49.5 -85.5 1 36.0 -54.4 311 25 774.4 774.4 326.6 774.6 0.02 94 13 28916 -49.9 -84.9 1 35.0 -54.6 311 25 773.0 773.1 326.5 773.2 0.02 95 12 29443 -47.9 -83.9 1 36.0 -53.7 320 35 798.0 798.0 327.2 798.3 0.03 96 12 29443 -47.9 -83.9 1 36.0 -53.7 320 35 798.0 798.0 327.2 798.3 0.03 97 11 30014 -50.5 -85.5 1 35.0 -55.5 308 24 808.7 808.7 327.4 808.9 0.02 98 10 30640 -48.5 -84.5 1 36.0 -54.6 295 23 838.5 838.5 328.1 838.8 0.03 99 8.6 31630 -49.7 -84.7 1 35.0 -55.8 870.8 870.8 328.8 871.1 0.04 TRP 193 12049 -63.1 -69.1 44 6.0 -63.1 270 161 336.2 336.2 293.4 336.3 0.02 WND 208 11586 -59.3 -62.8 64 3.5 -59.4 270 180 335.0 335.1 293.1 335.2 0.04 Sounding variables and indices 1000-500 mb thick: 5370.00 m Freezing level: 980.91 mb = 348.33 m = 1142.79 ft Wetbulb zero: Below ground Precipitable water: 0.25 inches Sfc-500 mean rel hum: 36.36 % Est. max temperature: 9.15 C = 48.46 F Sfc-Lift cond lev (LCL): 894.35 mb = 1076.40 m = 3531.45 ft T: -6.12 C 700-500 lapse rate: 5.56 C/km ThetaE index: 1.27 C Layer 886.0- 863.0 mb Conv cond level (CCL): 596.72 mb = 4234.87 m = 13893.76 ft Mean mixing ratio: 2.13 g/kg Conv temperature: 28.09 C = 82.57 F Cap Strength: 21.22 C Lifted Index: 21.78 C Risk: None Lifted Index @300 mb: 34.86 C Lifted Index @700 mb: 14.77 C Showalter Index: 18.94 C Risk: None Total Totals Index: 8.00 C Risk: None Vertical Totals Index: 19.00 C Cross Totals Index: -11.00 C K Index: -45.50 Risk: None Sweat Index: 137.00 Risk: None Energy Index: 5.16 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.49 J/kg Max Up Vert Vel: 1.73 m/s Conv Inhibition (B-): 68048.30 J/kg Cap Strength: 21.76 C Lift Cond Lev (LCL): 862.99 mb = 1355.99 m = 4448.75 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 310 at 32 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 1013 98 295 4 3.6 -1.7 | 132 29 -21.3 19.2 1 1000 190 295 11 10.0 -4.6 | 137 22 -14.9 16.2 2 986 305 305 14 11.5 -8.0 | 134 19 -13.4 12.8 3 949 610 315 15 10.6 -10.6 | 126 18 -14.3 10.3 4 925 812 315 16 11.3 -11.3 | 125 17 -13.6 9.6 5 913 914 315 17 12.0 -12.0 | 124 16 -12.9 8.9 6 878 1219 330 25 12.5 -21.7 | 86 12 -12.4 -0.8 7 850 1476 320 31 19.9 -23.7 | 60 6 -5.0 -2.9 8 813 1829 300 29 25.1 -14.5 | 182 6 0.2 6.4 9 782 2134 300 29 25.1 -14.5 | 182 6 0.2 6.4 10 752 2438 290 32 30.1 -10.9 | 207 11 5.2 9.9 11 724 2743 285 34 32.8 -8.8 | 213 14 7.9 12.1 12 700 3006 285 34 32.8 -8.8 | 213 14 7.9 12.1 13 669 3353 280 34 33.5 -5.9 | 210 17 8.6 15.0 14 642 3658 270 46 46.0 -0.0 | 225 30 21.1 20.9 15 617 3962 265 49 48.8 4.3 | 224 35 23.9 25.1 16 593 4267 265 52 51.8 4.5 | 227 37 26.9 25.4 17 547 4877 265 68 67.7 5.9 | 238 51 42.8 26.8 18 505 5486 275 73 72.7 -6.4 | 253 50 47.8 14.5 19 500 5560 275 75 74.7 -6.5 | 254 52 49.8 14.3 20 464 6096 280 94 92.6 -16.3 | 266 68 67.7 4.5 21 400 7170 275 132 131.5 -11.5 | 265 107 106.6 9.4 22 375 7620 275 144 143.5 -12.6 | 266 119 118.5 8.3 23 329 8534 265 159 158.4 13.9 | 255 138 133.5 34.7 24 302 9144 265 158 157.4 13.8 | 255 137 132.5 34.6 25 300 9190 265 162 161.4 14.1 | 256 141 136.5 35.0 26 250 10410 265 174 173.3 15.2 | 256 153 148.4 36.0 27 208 11586 270 180 180.0 -0.0 | 262 156 155.1 20.9 28 200 11830 270 173 173.0 -0.0 | 262 150 148.1 20.9 29 198 11887 270 180 180.0 -0.0 | 262 156 155.1 20.9 30 193 12049 270 161 161.0 -0.0 | 261 138 136.1 20.9 31 179 12497 270 146 146.0 -0.0 | 260 123 121.1 20.9 32 155 13411 265 151 150.4 13.2 | 255 130 125.5 34.0 33 150 13600 270 131 131.0 -0.0 | 259 108 106.1 20.9 34 140 14021 275 115 114.6 -10.0 | 263 90 89.7 10.8 35 121 14935 275 97 96.6 -8.5 | 260 73 71.7 12.4 36 115 15240 270 92 92.0 -0.0 | 253 70 67.1 20.9 37 105 15850 260 74 72.9 12.8 | 235 59 48.0 33.7 38 100 16130 260 81 79.8 14.1 | 238 65 54.9 34.9 39 95 16459 260 81 79.8 14.1 | 238 65 54.9 34.9 40 82 17374 270 95 95.0 -0.0 | 253 73 70.1 20.9 41 74 17983 275 58 57.8 -5.1 | 244 36 32.9 15.8 42 70 18288 275 54 53.8 -4.7 | 241 33 28.9 16.2 43 70 18330 275 46 45.8 -4.0 | 231 27 20.9 16.9 44 64 18898 275 41 40.8 -3.6 | 223 24 15.9 17.3 45 61 19202 255 57 55.1 14.8 | 220 47 30.2 35.6 46 55 19812 280 45 44.3 -7.8 | 236 23 19.4 13.1 47 52 20117 275 36 35.9 -3.1 | 212 21 11.0 17.7 48 50 20410 280 47 46.3 -8.2 | 239 25 21.4 12.7 49 45 21031 285 45 43.5 -11.6 | 244 21 18.6 9.2 50 43 21336 290 37 34.8 -12.7 | 230 13 9.9 8.2 51 41 21641 255 23 22.2 6.0 | 174 27 -2.7 26.8 52 35 22555 265 32 31.9 2.8 | 196 25 7.0 23.7 53 30 23590 285 22 21.3 -5.7 | 166 16 -3.7 15.2 54 28 24079 285 21 20.3 -5.4 | 163 16 -4.6 15.4 55 26 24384 320 22 14.1 -16.9 | 110 11 -10.8 4.0 56 25 24689 305 18 14.7 -10.3 | 136 15 -10.2 10.5 57 24 24994 330 18 9.0 -15.6 | 108 17 -15.9 5.3 58 23 25298 360 19 -0.0 -19.0 | 94 25 -24.9 1.9 59 22 25603 45 11 -7.8 -7.8 | 112 35 -32.7 13.1 60 20 26140 250 8 7.5 2.7 | 144 29 -17.4 23.6 61 20 26213 220 10 6.4 7.7 | 147 34 -18.5 28.5 62 19 26518 240 10 8.7 5.0 | 148 31 -16.2 25.9 63 18 26822 305 10 8.2 -5.7 | 132 23 -16.7 15.1 64 16 27432 280 16 15.8 -2.8 | 153 20 -9.1 18.1 65 16 27737 255 17 16.4 4.4 | 161 27 -8.5 25.3 66 15 28042 300 6 5.2 -3.0 | 132 27 -19.7 17.9 67 14 28651 330 28 14.0 -24.2 | 73 11 -10.9 -3.4 68 13 28956 310 25 19.2 -16.1 | 130 7 -5.8 4.8 69 12 29261 320 38 24.4 -29.1 | 3 8 -0.5 -8.2 70 11 29870 320 29 18.6 -22.2 | 78 6 -6.3 -1.3 71 11 30175 295 19 17.2 -8.0 | 149 15 -7.7 12.8 72 10 30640 295 23 20.8 -9.7 | 160 12 -4.1 11.2 Wind Parameters Mean winds (0-6000m): 280.0 at 43.3 knts Storm direction: 310.0 at 32.5 knts Shear (0-3000m) pos: 3.2 neg: 3.8 tot: 7.0 10-3/s Storm rel Dir Shear (0-3000m): 80.3 deg Storm rel helicity (0-3000m) pos: 33.3 neg: -59.1 tot: -25.8 m^2/s^2 ave: -8.6 10^-3 m/s^2 rel: -0.04 Storm rel vorticity (0-3000m) horiz: 9.2 stream: -0.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.01 Bulk Shear: 139.46 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 ------------------------------------------------------------------------------- 500 306 13 132 20| 11.6 0.0 11.6| 15.0 -18.2 -3.1 -6.3 -0.10| 13.6 -1.4 1000 312 15 128 18| 9.5 0.0 9.5| 15.0 -37.3 -22.3 -22.3 -0.31| 10.8 -3.4 1500 318 19 119 14| 6.3 3.4 9.7| 16.9 -58.1 -41.2 -27.5 -0.33| 12.3 -4.1 2000 313 22 124 11| 4.7 3.3 8.0| 21.2 -58.1 -36.9 -18.5 -0.16| 11.1 -1.7 2500 308 24 136 9| 3.8 4.2 8.0| 31.4 -58.1 -26.7 -10.7 -0.05| 10.5 -0.5 3000 302 25 154 8| 3.2 3.8 7.0| 33.3 -59.1 -25.8 -8.6 -0.04| 9.2 -0.3 4000 291 30 195 10| 2.4 5.6 7.9| 71.5 -67.1 4.5 1.1 0.04| 9.7 0.4 5000 282 36 217 17| 2.8 5.4 8.2|241.5 -67.1 174.4 34.9 0.18| 10.1 1.8 6000 280 43 233 22| 4.8 4.5 9.3|564.2 -67.1 497.2 82.9 0.30| 11.0 3.4 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251205.00.gif