UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025112712.upa.cvt Date: 1200Z 27 NOV 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 27 NOV 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 1006 98 3.2 -5.8 52 9.0 -0.1 255 5 275.9 276.3 272.7 282.7 2.46 1 1005 104 4.6 -7.4 41 12.0 0.3 259 6 277.4 277.7 273.2 283.5 2.18 2 1002 124 4.8 -8.2 38 13.0 0.2 272 8 277.8 278.1 273.2 283.6 2.05 3 1000 137 4.8 -8.2 38 13.0 0.2 280 10 278.0 278.3 273.3 283.8 2.06 4 925 766 -0.7 -8.7 55 8.0 -3.4 280 20 278.6 279.0 273.8 284.7 2.14 5 850 1434 -6.9 -10.7 74 3.8 -8.1 280 31 278.9 279.3 273.8 284.6 1.99 6 848 1452 -7.1 -10.7 75 3.6 -8.2 280 31 278.9 279.2 273.8 284.6 1.99 7 814 1770 -9.5 -12.0 82 2.5 -10.2 284 31 279.6 280.0 274.0 285.0 1.87 8 799 1913 -10.1 -13.5 76 3.4 -11.1 288 35 280.5 280.8 274.2 285.4 1.69 9 783 2070 -9.3 -17.3 52 8.0 -11.3 293 42 283.0 283.2 274.9 286.7 1.26 10 778 2119 -7.7 -21.7 32 14.0 -10.9 295 45 285.2 285.4 275.5 287.9 0.87 11 774 2159 -7.1 -23.1 27 16.0 -10.7 294 45 286.3 286.4 276.0 288.6 0.77 12 766 2240 -6.9 -23.9 24 17.0 -10.7 291 46 287.3 287.5 276.5 289.6 0.72 13 760 2302 -6.1 -42.1 4 36.0 -11.3 289 46 288.9 288.9 276.3 289.3 0.12 14 729 2631 0.0 -36.0 5 36.0 -7.4 275 49 299.0 299.0 281.3 299.8 0.24 15 700 2955 -2.1 -33.1 7 31.0 -8.7 270 51 300.2 300.2 281.9 301.3 0.34 16 695 3012 -2.5 -33.5 7 31.0 -9.0 268 51 300.3 300.4 282.0 301.4 0.33 17 680 3185 -1.7 -48.7 1 47.0 -9.1 262 52 303.1 303.1 282.7 303.4 0.07 18 609 4055 -7.1 -40.1 5 33.0 -12.8 246 56 306.6 306.6 284.3 307.3 0.19 19 581 4420 -9.5 -29.5 18 20.0 -13.9 248 68 307.9 308.1 285.3 309.9 0.57 20 536 5037 -14.7 -23.7 46 9.0 -16.9 235 77 308.9 309.1 286.2 312.4 1.05 21 521 5252 -16.3 -26.3 42 10.0 -18.5 231 81 309.5 309.7 286.2 312.4 0.86 22 500 5560 -19.3 -26.3 54 7.0 -20.8 235 79 309.5 309.7 286.2 312.5 0.89 23 478 5893 -21.9 -27.9 58 6.0 -23.0 237 78 310.3 310.5 286.4 313.0 0.81 24 455 6253 -25.1 -31.1 57 6.0 -26.1 241 82 310.7 310.8 286.4 312.9 0.63 25 452 6301 -25.3 -31.3 57 6.0 -26.2 242 83 311.0 311.2 286.5 313.2 0.62 26 449 6350 -25.3 -33.3 47 8.0 -26.5 242 84 311.6 311.7 286.5 313.4 0.51 27 447 6382 -25.5 -32.5 52 7.0 -26.6 242 84 311.8 311.9 286.6 313.7 0.56 28 444 6431 -25.5 -34.5 43 9.0 -26.8 243 85 312.4 312.5 286.8 314.0 0.46 29 435 6579 -26.5 -37.5 35 11.0 -27.9 244 88 312.9 313.0 286.8 314.2 0.35 30 428 6696 -27.1 -36.1 42 9.0 -28.3 245 91 313.6 313.7 287.1 315.1 0.41 31 413 6952 -28.9 -33.5 64 4.6 -29.5 242 96 314.5 314.6 287.6 316.5 0.55 32 403 7127 -30.1 -34.3 67 4.2 -30.7 241 99 315.2 315.3 287.8 317.0 0.52 33 400 7180 -30.5 -34.4 69 3.9 -31.0 240 100 315.3 315.4 287.8 317.2 0.52 34 385 7450 -32.9 -35.8 75 2.9 -33.3 237 99 315.7 315.8 287.9 317.3 0.47 35 366 7805 -34.3 -37.4 73 3.1 -34.6 235 99 318.4 318.5 288.7 319.9 0.42 36 323 8665 -41.7 -45.9 64 4.2 -42.0 235 105 319.8 319.8 288.9 320.5 0.19 37 315 8834 -43.5 -46.0 76 2.5 -43.6 235 106 319.6 319.6 288.8 320.3 0.20 38 310 8941 -44.5 -47.1 75 2.6 -44.6 235 107 319.6 319.7 288.8 320.3 0.18 39 307 9006 -44.9 -49.1 63 4.2 -45.1 235 108 320.0 320.0 288.9 320.5 0.14 40 304 9072 -45.5 -49.9 61 4.4 -45.7 235 109 320.0 320.0 288.9 320.5 0.13 41 301 9138 -46.3 -50.8 60 4.5 -46.5 235 110 319.8 319.8 288.8 320.3 0.12 42 300 9160 -46.5 -50.9 61 4.4 -46.7 235 111 319.8 319.8 288.8 320.3 0.12 43 295 9271 -47.5 -51.7 62 4.2 -47.7 235 113 319.9 320.0 288.9 320.4 0.11 44 294 9293 -47.7 -51.9 62 4.2 -47.9 236 113 320.0 320.0 288.9 320.4 0.11 45 292 9338 -47.9 -51.7 65 3.8 -48.0 236 114 320.3 320.3 289.0 320.7 0.11 46 291 9360 -48.1 -49.8 82 1.7 -48.2 236 114 320.3 320.4 289.0 320.9 0.14 47 289 9406 -48.3 -50.7 76 2.4 -48.4 236 115 320.7 320.7 289.1 321.2 0.13 48 288 9428 -48.3 -53.3 56 5.0 -48.5 236 115 321.0 321.0 289.2 321.4 0.09 49 286 9474 -48.5 -52.8 61 4.3 -48.7 236 116 321.4 321.4 289.3 321.7 0.10 50 285 9497 -48.7 -53.6 57 4.9 -48.8 236 116 321.4 321.4 289.3 321.7 0.09 51 283 9543 -48.5 -61.5 21 13.0 -48.8 237 117 322.3 322.3 289.5 322.5 0.03 52 282 9566 -48.3 -63.3 16 15.0 -48.7 237 117 322.9 322.9 289.7 323.0 0.03 53 276 9707 -48.3 -67.3 9 19.0 -48.7 237 119 324.9 324.9 290.3 325.0 0.02 54 260 10096 -50.5 -67.5 12 17.0 -50.8 239 125 327.3 327.3 291.0 327.4 0.02 55 259 10121 -50.5 -68.5 10 18.0 -50.8 239 126 327.7 327.7 291.0 327.7 0.01 56 250 10350 -52.4 -70.4 10 18.0 -52.7 240 129 328.1 328.1 291.2 328.2 0.01 57 247 10428 -53.1 -71.1 9 18.0 -53.4 240 129 328.3 328.3 291.2 328.3 0.01 58 200 11770 -58.9 -76.9 8 18.0 -59.0 240 123 339.5 339.5 294.2 339.5 0.01 59 150 13600 -54.9 -82.9 2 28.0 -55.3 245 83 375.5 375.5 301.5 375.5 0.00 60 100 16150 -62.7 -86.7 3 24.0 -62.9 245 67 406.6 406.6 306.1 406.6 0.00 61 99 16212 -62.9 -86.9 3 24.0 -63.1 245 67 407.4 407.4 306.2 407.4 0.00 62 95 16467 -61.5 -86.5 2 25.0 -61.7 245 67 414.9 414.9 307.1 415.0 0.00 63 87 17011 -62.1 -87.1 2 25.0 -62.4 248 71 424.3 424.3 308.2 424.3 0.00 64 84 17229 -59.9 -86.9 2 27.0 -60.3 253 67 433.1 433.1 309.1 433.1 0.00 65 79 17613 -59.7 -87.7 1 28.0 -60.1 259 53 441.1 441.1 310.0 441.1 0.00 66 70 18360 -64.7 -88.7 2 24.0 -64.9 235 29 446.0 446.0 310.5 446.0 0.00 67 66 18716 -66.5 -89.5 3 23.0 -66.7 232 30 449.6 449.6 310.8 449.6 0.00 68 63 18997 -64.7 -88.7 2 24.0 -65.0 231 33 459.6 459.6 311.7 459.6 0.00 69 61 19193 -65.7 -89.7 2 24.0 -66.0 232 37 461.6 461.6 311.9 461.7 0.00 70 52 20167 -61.7 -88.7 2 27.0 -62.1 241 26 492.5 492.5 314.4 492.5 0.00 71 50 20410 -60.7 -89.7 1 29.0 -61.2 245 25 500.4 500.4 315.0 500.5 0.00 72 49 20536 -60.1 -89.1 1 29.0 -60.7 246 30 504.8 504.8 315.3 504.8 0.00 73 43 21346 -63.7 -89.7 2 26.0 -64.1 275 18 515.1 515.1 316.0 515.1 0.00 74 42 21491 -62.5 -89.5 1 27.0 -63.0 267 18 521.6 521.6 316.4 521.6 0.00 75 37 22272 -63.9 -90.9 1 27.0 -64.4 278 19 537.2 537.2 317.3 537.2 0.00 76 34 22795 -60.7 -88.7 1 28.0 -61.4 240 12 558.8 558.8 318.6 558.8 0.00 77 30 23570 -63.5 -90.5 1 27.0 -64.1 40 4 571.5 571.5 319.2 571.5 0.00 78 26 24447 -64.1 -90.1 2 26.0 -64.7 357 4 593.7 593.7 320.3 593.7 0.00 79 21 25760 -62.3 -90.3 1 28.0 -63.3 338 10 636.5 636.5 322.2 636.6 0.01 80 20 26060 -63.5 -90.5 1 27.0 -64.4 320 3 641.8 641.8 322.4 641.8 0.01 81 17 27059 -64.3 -90.3 2 26.0 -65.2 348 2 669.8 669.8 323.4 669.8 0.01 82 13 28720 -60.5 -89.5 1 29.0 -62.3 8 24 736.3 736.3 325.6 736.4 0.01 83 13 28720 -58.9 -88.9 1 30.0 -61.0 8 24 741.9 741.9 325.7 742.0 0.01 84 13 28720 -59.5 -89.5 1 30.0 -61.5 8 24 739.8 739.8 325.7 739.9 0.01 85 11 29772 -57.7 -88.7 1 31.0 -60.4 42 26 782.5 782.5 326.8 782.7 0.01 86 10 30380 -53.9 -85.9 1 32.0 -57.9 30 14 818.4 818.4 327.7 818.6 0.02 87 9.4 30777 -52.5 -85.5 1 33.0 -57.2 20 15 838.3 838.3 328.1 838.5 0.03 88 8.3 31581 -50.9 -84.9 1 34.0 -56.6 359 17 875.0 875.0 329.0 875.3 0.04 89 7.3 32410 -52.9 -85.9 1 33.0 -58.2 337 18 899.5 899.5 329.4 899.8 0.03 90 7.0 32680 -51.9 -85.9 1 34.0 -57.8 330 19 914.5 914.5 329.7 914.8 0.03 91 6.6 33062 -50.7 -84.7 1 34.0 -57.3 935.1 935.1 330.1 935.5 0.05 TRP 200 11770 -58.9 -76.9 8 18.0 -59.0 240 123 339.5 339.5 294.2 339.5 0.01 WND 250 10350 -52.4 -70.4 10 18.0 -52.7 240 129 328.1 328.1 291.2 328.2 0.01 Sounding variables and indices 1000-500 mb thick: 5423.00 m Freezing level: 934.55 mb = 685.95 m = 2250.45 ft Freezing level: 729.00 mb = 2631.39 m = 8633.05 ft Freezing level: 729.00 mb = 2631.39 m = 8633.05 ft Wetbulb zero: Below ground Precipitable water: 0.27 inches Sfc-500 mean rel hum: 33.68 % Est. max temperature: 6.22 C = 43.20 F Sfc-Lift cond lev (LCL): 874.71 mb = 1207.66 m = 3962.11 ft T: -4.80 C 700-500 lapse rate: 6.60 C/km ThetaE index: 0.31 C Layer 760.0- 729.0 mb Conv cond level (CCL): 524.16 mb = 5206.19 m = 17080.46 ft Mean mixing ratio: 2.10 g/kg Conv temperature: 36.76 C = 98.16 F Cap Strength: 21.71 C Lifted Index: 21.29 C Risk: None Lifted Index @300 mb: 25.20 C Lifted Index @700 mb: 17.45 C Showalter Index: 21.05 C Risk: None Total Totals Index: 21.00 C Risk: None Vertical Totals Index: 12.40 C Cross Totals Index: 8.60 C K Index: -29.30 Risk: None Sweat Index: 141.00 Risk: None Energy Index: 6.00 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.82 J/kg Max Up Vert Vel: 1.91 m/s Conv Inhibition (B-): 58890.12 J/kg Cap Strength: 21.61 C Lift Cond Lev (LCL): 816.55 mb = 1745.67 m = 5727.19 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 284 at 38 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 1006 98 255 5 4.8 1.3 | 108 34 -32.1 10.3 1 1000 137 280 10 9.8 -1.7 | 105 28 -27.1 7.3 2 979 305 280 15 14.8 -2.6 | 106 23 -22.1 6.4 3 943 610 275 19 18.9 -1.7 | 112 19 -18.0 7.4 4 925 766 280 20 19.7 -3.5 | 108 18 -17.2 5.6 5 908 914 275 25 24.9 -2.2 | 120 14 -12.0 6.9 6 873 1219 280 28 27.6 -4.9 | 114 10 -9.3 4.2 7 850 1434 280 31 30.5 -5.4 | 120 7 -6.4 3.7 8 808 1829 285 31 29.9 -8.0 | 98 7 -7.0 1.0 9 777 2134 295 45 40.8 -19.0 | 339 11 3.9 -10.0 10 748 2438 285 47 45.4 -12.2 | 290 9 8.5 -3.1 11 719 2743 270 50 50.0 -0.0 | 235 16 13.1 9.0 12 700 2955 270 51 51.0 -0.0 | 237 17 14.1 9.0 13 639 3658 245 54 48.9 22.8 | 201 34 12.0 31.9 14 615 3962 245 53 48.0 22.4 | 199 33 11.1 31.4 15 591 4267 250 67 63.0 22.9 | 219 41 26.0 32.0 16 546 4877 240 74 64.1 37.0 | 211 53 27.2 46.0 17 525 5182 230 81 62.0 52.1 | 202 66 25.1 61.1 18 500 5560 235 79 64.7 45.3 | 207 61 27.8 54.4 19 484 5791 235 77 63.1 44.2 | 206 59 26.2 53.2 20 464 6096 240 79 68.4 39.5 | 213 58 31.5 48.5 21 427 6706 245 91 82.5 38.5 | 224 66 45.6 47.5 22 400 7180 240 100 86.6 50.0 | 220 77 49.7 59.0 23 375 7620 235 98 80.3 56.2 | 214 78 43.4 65.3 24 314 8839 235 106 86.8 60.8 | 216 86 49.9 69.8 25 301 9144 235 110 90.1 63.1 | 216 90 53.2 72.1 26 300 9160 235 111 90.9 63.7 | 217 91 54.0 72.7 27 250 10350 240 129 111.7 64.5 | 225 105 74.8 73.5 28 249 10363 240 129 111.7 64.5 | 225 105 74.8 73.5 29 200 11770 240 123 106.5 61.5 | 225 99 69.6 70.5 30 196 11887 240 124 107.4 62.0 | 225 100 70.5 71.0 31 178 12497 250 94 88.3 32.1 | 231 66 51.4 41.2 32 170 12802 245 85 77.0 35.9 | 222 60 40.1 45.0 33 162 13106 245 97 87.9 41.0 | 226 71 51.0 50.0 34 150 13600 245 83 75.2 35.1 | 221 58 38.3 44.1 35 127 14630 250 80 75.2 27.4 | 226 53 38.3 36.4 36 121 14935 245 91 82.5 38.5 | 224 66 45.6 47.5 37 116 15240 250 85 79.9 29.1 | 228 57 43.0 38.1 38 105 15850 245 68 61.6 28.7 | 213 45 24.7 37.8 39 100 16150 245 67 60.7 28.3 | 213 44 23.8 37.4 40 95 16459 245 67 60.7 28.3 | 213 44 23.8 37.4 41 91 16764 240 64 55.4 32.0 | 204 45 18.5 41.0 42 86 17069 250 73 68.6 25.0 | 223 46 31.7 34.0 43 74 17983 265 40 39.8 3.5 | 193 13 2.9 12.5 44 71 18288 250 26 24.4 8.9 | 145 22 -12.5 17.9 45 70 18360 235 29 23.8 16.6 | 153 29 -13.2 25.7 46 64 18898 230 31 23.7 19.9 | 156 32 -13.2 29.0 47 58 19507 235 44 36.0 25.2 | 179 34 -0.9 34.3 48 55 19812 250 37 34.8 12.7 | 174 22 -2.1 21.7 49 52 20117 240 26 22.5 13.0 | 147 26 -14.4 22.0 50 50 20410 245 25 22.7 10.6 | 144 24 -14.3 19.6 51 50 20422 255 31 29.9 8.0 | 158 18 -7.0 17.1 52 48 20726 230 28 21.4 18.0 | 150 31 -15.5 27.0 53 45 21031 280 25 24.6 -4.3 | 111 13 -12.3 4.7 54 43 21336 275 18 17.9 -1.6 | 112 20 -19.0 7.5 55 41 21641 260 18 17.7 3.1 | 122 23 -19.2 12.2 56 37 22250 280 19 18.7 -3.3 | 108 19 -18.2 5.7 57 34 22860 235 11 9.0 6.3 | 119 32 -27.9 15.4 58 30 23470 20 11 -3.8 -10.3 | 88 41 -40.7 -1.3 59 30 23570 40 4 -2.6 -3.1 | 99 40 -39.5 6.0 60 26 24384 355 4 0.3 -4.0 | 98 37 -36.6 5.1 61 24 24994 15 1 -0.3 -1.0 | 102 38 -37.2 8.1 62 22 25603 330 10 5.0 -8.7 | 91 32 -31.9 0.4 63 21 25908 345 10 2.6 -9.7 | 89 34 -34.3 -0.6 64 20 26060 320 3 1.9 -2.3 | 101 36 -35.0 6.7 65 17 27127 350 2 0.3 -2.0 | 101 37 -36.6 7.1 66 16 27432 300 8 6.9 -4.0 | 100 30 -30.0 5.0 67 15 28042 10 18 -3.1 -17.7 | 78 41 -40.0 -8.7 68 14 28346 10 9 -1.6 -8.9 | 90 38 -38.5 0.2 69 13 28651 5 24 -2.1 -23.9 | 69 42 -39.0 -14.9 70 11 29566 35 27 -15.5 -22.1 | 76 54 -52.4 -13.1 71 10 30175 55 23 -18.8 -13.2 | 86 56 -55.8 -4.1 72 10 30380 30 14 -7.0 -12.1 | 86 44 -43.9 -3.1 73 7 32680 330 19 9.5 -16.5 | 75 28 -27.4 -7.4 Wind Parameters Mean winds (0-6000m): 253.8 at 50.7 knts Storm direction: 283.8 at 38.0 knts Shear (0-3000m) pos: 6.8 neg: 4.3 tot: 11.1 10-3/s Storm rel Dir Shear (0-3000m): 118.9 deg Storm rel helicity (0-3000m) pos: 26.5 neg: -101.6 tot: -75.1 m^2/s^2 ave: -25.0 10^-3 m/s^2 rel: -0.45 Storm rel vorticity (0-3000m) horiz: 12.3 stream: -5.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.01 Bulk Shear: 189.35 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 ------------------------------------------------------------------------------- 500 278 15 107 24| 14.7 0.0 14.7| 14.1 -9.8 4.3 8.7 0.08| 15.3 1.3 1000 277 19 110 20| 11.5 0.0 11.5| 24.0 -14.7 9.3 9.3 0.11| 12.3 1.3 1500 279 22 111 16| 9.1 0.0 9.1| 25.4 -17.8 7.6 5.0 0.06| 10.0 0.6 2000 282 25 108 13| 10.2 0.0 10.2| 25.4 -33.4 -8.0 -4.0 -0.23| 11.5 -2.7 2500 283 30 105 8| 8.1 2.9 11.1| 25.4 -70.0 -44.6 -17.8 -0.42| 12.4 -5.1 3000 280 33 127 5| 6.8 4.3 11.1| 26.5-101.6 -75.1 -25.0 -0.45| 12.3 -5.6 4000 270 38 188 9| 5.6 5.1 10.7| 78.5-190.6-112.1 -28.0 -0.40| 12.5 -5.1 5000 261 45 205 18| 4.5 6.8 11.2|146.4-369.2-222.8 -44.6 -0.35| 13.4 -4.7 6000 254 51 207 26| 4.5 5.7 10.1|333.9-417.7 -83.8 -14.0 -0.25| 12.9 -3.2 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251127.12.gif