UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025112800.upa.cvt Date: 0000Z 28 NOV 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:0000Z 28 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 1008 98 3.2 -6.8 48 10.0 -0.4 305 7 275.7 276.1 272.3 282.1 2.27 1 1000 153 2.4 -7.6 48 10.0 -1.1 305 12 275.5 275.9 272.1 281.6 2.15 2 925 776 -3.5 -9.5 63 6.0 -5.4 300 26 275.7 276.1 271.9 281.4 2.01 3 854 1400 -9.3 -11.6 83 2.3 -9.9 294 34 276.0 276.3 271.9 281.2 1.84 4 850 1436 -9.7 -11.9 84 2.2 -10.3 295 35 276.0 276.3 271.8 281.1 1.80 5 824 1675 -11.5 -13.1 88 1.6 -11.9 295 37 276.5 276.8 271.9 281.4 1.69 6 815 1759 -12.1 -13.9 86 1.8 -12.6 295 37 276.8 277.0 271.9 281.3 1.60 7 801 1891 -13.3 -13.9 95 0.6 -13.5 297 37 276.9 277.1 272.1 281.5 1.63 8 797 1929 -13.5 -14.4 93 0.9 -13.7 298 37 277.1 277.3 272.1 281.6 1.57 9 794 1958 -13.5 -15.2 87 1.7 -13.9 299 36 277.4 277.6 272.1 281.6 1.48 10 783 2065 -11.1 -21.1 43 10.0 -13.3 303 35 281.0 281.2 273.3 283.8 0.91 11 781 2084 -11.1 -22.1 40 11.0 -13.4 303 35 281.2 281.4 273.3 283.8 0.83 12 762 2273 -11.3 -25.3 30 14.0 -14.0 298 32 283.0 283.1 274.0 285.0 0.64 13 757 2324 -10.7 -34.7 12 24.0 -14.3 296 32 284.2 284.2 274.0 285.1 0.27 14 754 2355 -10.7 -39.7 7 29.0 -14.6 294 31 284.5 284.6 274.0 285.1 0.16 15 700 2923 -13.5 -46.5 4 33.0 -17.1 275 26 287.5 287.5 275.5 287.8 0.08 16 687 3066 -14.1 -47.1 4 33.0 -17.6 279 26 288.4 288.4 276.0 288.7 0.08 17 678 3166 -13.3 -45.3 5 32.0 -17.0 273 27 290.4 290.4 277.0 290.7 0.10 18 638 3627 -15.7 -43.7 7 28.0 -18.9 264 33 292.8 292.8 278.2 293.2 0.12 19 632 3699 -16.1 -37.1 15 21.0 -19.0 265 33 293.1 293.1 278.6 293.9 0.25 20 611 3953 -17.3 -33.3 23 16.0 -19.7 260 35 294.6 294.6 279.4 295.8 0.38 21 602 4064 -18.1 -32.1 28 14.0 -20.3 259 36 294.9 295.0 279.7 296.3 0.43 22 574 4419 -20.9 -27.9 53 7.0 -22.1 254 40 295.7 295.8 280.4 297.8 0.67 23 568 4496 -21.3 -25.8 67 4.5 -22.1 253 42 296.1 296.2 280.8 298.7 0.82 24 565 4535 -20.7 -24.1 74 3.4 -21.4 253 42 297.2 297.4 281.4 300.3 0.96 25 562 4575 -20.1 -23.9 72 3.8 -20.8 253 43 298.4 298.6 282.0 301.5 0.99 26 556 4654 -20.5 -24.7 69 4.2 -21.3 252 45 298.8 299.0 282.1 301.8 0.93 27 507 5329 -26.9 -27.0 99 0.1 -26.9 242 48 299.1 299.2 282.1 301.7 0.83 28 505 5358 -27.3 -28.6 89 1.3 -27.5 241 47 298.9 299.0 281.8 301.2 0.71 29 503 5387 -26.5 -37.5 35 11.0 -27.7 241 47 300.2 300.3 281.8 301.2 0.30 30 502 5401 -26.3 -43.3 19 17.0 -27.9 241 47 300.6 300.7 281.8 301.2 0.17 31 501 5416 -26.1 -45.1 15 19.0 -27.8 240 47 301.0 301.1 282.0 301.5 0.14 32 500 5430 -25.9 -43.9 17 18.0 -27.6 240 47 301.5 301.5 282.2 302.0 0.16 33 497 5474 -25.5 -43.5 17 18.0 -27.2 240 48 302.5 302.5 282.6 303.0 0.16 34 490 5576 -25.9 -46.9 12 21.0 -27.7 240 49 303.2 303.2 282.8 303.6 0.11 35 440 6344 -32.1 -53.1 11 21.0 -33.3 237 59 304.8 304.9 283.4 305.1 0.06 36 418 6704 -34.1 -57.1 8 23.0 -35.2 233 61 306.8 306.8 284.1 306.9 0.04 37 400 7010 -36.5 -61.5 6 25.0 -37.4 230 63 307.6 307.6 284.4 307.6 0.02 38 372 7509 -39.5 -64.5 5 25.0 -40.3 230 70 310.0 310.0 285.4 310.1 0.02 39 353 7867 -40.7 -62.7 8 22.0 -41.4 230 73 313.1 313.1 286.5 313.2 0.02 40 334 8241 -43.3 -63.3 9 20.0 -43.9 230 77 314.5 314.5 286.9 314.6 0.02 41 310 8741 -44.9 -66.9 7 22.0 -45.4 230 82 319.1 319.1 288.5 319.1 0.02 42 300 8960 -45.5 -68.5 6 23.0 -46.0 230 84 321.2 321.2 289.1 321.3 0.01 43 287 9255 -46.3 -70.3 5 24.0 -46.8 230 88 324.2 324.2 290.0 324.2 0.01 44 284 9325 -45.7 -70.7 4 25.0 -46.2 230 89 326.0 326.0 290.6 326.1 0.01 45 282 9372 -45.9 -70.7 4 24.9 -46.4 230 90 326.4 326.4 290.7 326.5 0.01 46 267 9735 -47.1 -71.1 5 24.0 -47.6 230 88 329.8 329.8 291.7 329.8 0.01 47 258 9962 -46.9 -73.9 3 27.0 -47.4 230 87 333.3 333.3 292.6 333.4 0.01 48 250 10170 -47.9 -74.9 3 27.0 -48.4 230 86 334.9 334.9 293.0 334.9 0.01 49 235 10576 -49.7 -76.7 3 27.0 -50.1 230 83 338.1 338.1 293.9 338.1 0.00 50 203 11533 -49.1 -79.1 2 30.0 -49.6 235 84 353.5 353.5 297.4 353.5 0.00 51 200 11630 -49.7 -79.7 2 30.0 -50.2 235 84 354.1 354.1 297.5 354.1 0.00 52 174 12539 -49.7 -80.7 1 31.0 -50.3 233 76 368.5 368.5 300.3 368.5 0.00 53 150 13500 -53.5 -82.5 2 29.0 -53.9 230 67 377.9 377.9 301.9 377.9 0.00 54 140 13943 -54.9 -82.9 2 28.0 -55.3 233 68 383.0 383.0 302.7 383.0 0.00 55 132 14320 -53.9 -82.9 2 29.0 -54.4 235 69 391.3 391.3 304.0 391.3 0.00 56 122 14822 -56.9 -84.9 2 28.0 -57.3 238 71 394.7 394.7 304.5 394.7 0.00 57 116 15143 -55.3 -84.3 2 29.0 -55.8 239 72 403.4 403.4 305.6 403.4 0.00 58 106 15713 -59.3 -85.3 2 26.0 -59.6 243 68 406.3 406.3 306.0 406.3 0.00 59 100 16080 -56.7 -84.7 2 28.0 -57.2 245 64 418.2 418.2 307.5 418.2 0.00 60 91 16675 -58.3 -86.3 2 28.0 -58.7 247 58 426.4 426.4 308.4 426.4 0.00 61 79 17565 -58.1 -86.1 2 28.0 -58.6 238 39 444.4 444.4 310.3 444.5 0.00 62 72 18144 -61.5 -87.5 2 26.0 -61.9 233 55 449.2 449.2 310.8 449.2 0.00 63 70 18320 -58.7 -86.7 2 28.0 -59.2 260 50 458.8 458.8 311.7 458.8 0.00 64 67 18595 -58.3 -86.3 2 28.0 -58.8 262 45 465.5 465.5 312.3 465.5 0.00 65 60 19282 -62.1 -88.1 2 26.0 -62.5 256 24 471.9 471.9 312.8 471.9 0.00 66 58 19491 -61.7 -87.7 2 26.0 -62.1 246 22 477.4 477.4 313.2 477.4 0.00 67 54 19932 -63.3 -89.3 2 26.0 -63.7 202 30 483.6 483.6 313.7 483.6 0.00 68 54 19932 -61.9 -87.9 2 26.0 -62.3 202 30 486.8 486.8 314.0 486.8 0.00 69 51 20286 -59.7 -87.7 1 28.0 -60.3 240 26 500.0 500.0 314.9 500.0 0.00 70 51 20286 -59.7 -87.7 1 28.0 -60.3 240 26 500.0 500.0 314.9 500.0 0.00 71 50 20410 -60.1 -87.1 2 27.0 -60.7 265 20 501.9 501.9 315.1 501.9 0.00 72 45 21065 -61.7 -88.7 2 27.0 -62.2 246 22 513.3 513.3 315.9 513.3 0.00 73 43 21348 -58.9 -87.9 1 29.0 -59.6 230 21 526.9 526.9 316.7 526.9 0.00 74 38 22119 -61.7 -88.7 2 27.0 -62.3 248 21 538.8 538.8 317.5 538.8 0.00 75 32 23181 -62.7 -89.7 1 27.0 -63.3 324 3 563.2 563.2 318.8 563.2 0.00 76 31 23377 -61.3 -89.3 1 28.0 -62.1 304 8 572.1 572.1 319.3 572.2 0.00 77 30 23580 -62.5 -89.5 1 27.0 -63.2 20 6 574.3 574.3 319.4 574.3 0.00 78 23 25217 -64.7 -90.7 2 26.0 -65.4 298 12 613.1 613.1 321.2 613.1 0.00 79 22 25491 -62.3 -90.3 1 28.0 -63.2 283 11 628.1 628.1 321.8 628.1 0.00 80 21 25778 -63.3 -89.3 2 26.0 -64.1 303 8 633.5 633.5 322.0 633.6 0.01 81 20 26080 -62.3 -89.3 2 27.0 -63.3 360 5 645.5 645.5 322.5 645.5 0.01 82 18 26731 -62.5 -89.5 1 27.0 -63.6 342 9 664.6 664.6 323.2 664.6 0.01 83 13 28758 -59.1 -88.1 1 29.0 -61.2 355 6 741.2 741.2 325.7 741.3 0.01 84 13 28758 -59.1 -88.1 1 29.0 -61.2 355 6 741.2 741.2 325.7 741.3 0.01 85 12 29260 -58.9 -87.9 1 29.0 -61.2 354 11 759.1 759.1 326.2 759.2 0.01 86 12 29260 -58.9 -87.9 1 29.0 -61.2 354 11 759.1 759.1 326.2 759.2 0.01 87 12 29260 -58.7 -87.7 1 29.0 -61.0 354 11 759.8 759.8 326.2 759.9 0.01 88 12 29260 -58.5 -87.5 1 29.0 -60.8 354 11 760.5 760.5 326.2 760.6 0.02 89 11 29806 -59.5 -88.5 1 29.0 -61.7 13 20 776.0 776.0 326.6 776.1 0.01 90 10 30410 -54.7 -86.7 1 32.0 -58.5 10 19 815.4 815.4 327.6 815.5 0.02 91 9.4 30808 -52.7 -85.7 1 33.0 -57.3 837.5 837.5 328.1 837.8 0.03 92 9.2 30946 -53.1 -85.1 1 32.0 -57.6 841.2 841.2 328.2 841.4 0.03 TRP 235 10576 -49.7 -76.7 3 27.0 -50.1 230 83 338.1 338.1 293.9 338.1 0.00 WND 282 9372 -45.9 -70.7 4 24.9 -46.4 230 90 326.4 326.4 290.7 326.5 0.01 Sounding variables and indices 1000-500 mb thick: 5277.00 m Freezing level: 969.49 mb = 406.42 m = 1333.40 ft Wetbulb zero: Below ground Precipitable water: 0.22 inches Sfc-500 mean rel hum: 47.99 % Est. max temperature: 3.50 C = 38.30 F Sfc-Lift cond lev (LCL): 862.85 mb = 1319.23 m = 4328.13 ft T: -8.55 C 700-500 lapse rate: 4.95 C/km ThetaE index: 0.98 C Layer 1000.0- 824.0 mb Conv cond level (CCL): 841.16 mb = 1516.40 m = 4974.99 ft Mean mixing ratio: 2.07 g/kg Conv temperature: 3.65 C = 38.58 F Cap Strength: 16.54 C Lifted Index: 16.85 C Risk: None Lifted Index @300 mb: 28.19 C Lifted Index @700 mb: 8.04 C Showalter Index: 17.15 C Risk: None Total Totals Index: 30.20 C Risk: None Vertical Totals Index: 16.20 C Cross Totals Index: 14.00 C K Index: -28.70 Risk: None Sweat Index: 117.00 Risk: None Energy Index: 4.44 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.57 J/kg Max Up Vert Vel: 1.07 m/s Conv Inhibition (B-): 59313.33 J/kg Cap Strength: 15.45 C Lift Cond Lev (LCL): 847.55 mb = 1458.22 m = 4784.13 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 297 at 27 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 1008 98 305 7 5.7 -4.0 | 114 20 -18.0 8.0 1 1000 153 305 12 9.8 -6.9 | 110 15 -13.9 5.1 2 981 305 305 15 12.3 -8.6 | 106 12 -11.4 3.4 3 944 610 295 22 19.9 -9.3 | 125 5 -3.8 2.7 4 925 776 300 26 22.5 -13.0 | 50 2 -1.2 -1.0 5 909 914 295 26 23.6 -11.0 | 171 1 -0.2 1.0 6 874 1219 290 32 30.1 -10.9 | 261 6 6.3 1.0 7 850 1436 295 35 31.7 -14.8 | 289 8 8.0 -2.8 8 808 1829 295 38 34.4 -16.1 | 291 11 10.7 -4.1 9 776 2134 305 34 27.9 -19.5 | 331 9 4.1 -7.5 10 746 2438 290 30 28.2 -10.3 | 249 5 4.5 1.7 11 717 2743 280 27 26.6 -4.7 | 201 8 2.9 7.3 12 700 2923 275 26 25.9 -2.3 | 193 10 2.2 9.7 13 688 3048 280 26 25.6 -4.5 | 194 8 1.9 7.5 14 661 3353 260 30 29.5 5.2 | 199 18 5.8 17.2 15 634 3658 265 33 32.9 2.9 | 212 17 9.1 14.9 16 584 4267 255 37 35.7 9.6 | 209 25 12.0 21.6 17 539 4877 250 50 47.0 17.1 | 219 37 23.3 29.1 18 500 5430 240 47 40.7 23.5 | 206 39 17.0 35.5 19 455 6096 240 57 49.4 28.5 | 212 48 25.6 40.5 20 400 7010 230 63 48.3 40.5 | 205 58 24.5 52.5 21 400 7010 230 65 49.8 41.8 | 206 60 26.1 53.8 22 366 7620 230 71 54.4 45.6 | 208 65 30.7 57.6 23 300 8960 230 84 64.3 54.0 | 212 77 40.6 66.0 24 292 9144 230 86 65.9 55.3 | 212 79 42.1 67.3 25 282 9372 230 90 68.9 57.9 | 213 83 45.2 69.8 26 279 9449 230 90 68.9 57.9 | 213 83 45.2 69.8 27 250 10170 230 86 65.9 55.3 | 212 79 42.1 67.3 28 235 10576 230 83 63.6 53.4 | 211 77 39.9 65.3 29 200 11630 235 84 68.8 48.2 | 217 75 45.1 60.2 30 150 13500 230 67 51.3 43.1 | 207 62 27.6 55.1 31 114 15240 240 72 62.4 36.0 | 219 62 38.6 48.0 32 100 16080 245 64 58.0 27.0 | 221 52 34.3 39.0 33 94 16459 245 64 58.0 27.0 | 221 52 34.3 39.0 34 85 17069 250 48 45.1 16.4 | 217 36 21.4 28.4 35 78 17678 235 37 30.3 21.2 | 191 34 6.6 33.2 36 74 17983 225 50 35.4 35.4 | 194 49 11.6 47.3 37 70 18288 240 60 52.0 30.0 | 214 51 28.2 42.0 38 70 18320 260 50 49.2 8.7 | 231 33 25.5 20.7 39 64 18898 265 39 38.9 3.4 | 225 22 15.1 15.4 40 61 19202 260 25 24.6 4.3 | 183 16 0.9 16.3 41 58 19507 245 22 19.9 9.3 | 170 22 -3.8 21.3 42 55 19812 200 27 9.2 25.4 | 159 40 -14.5 37.4 43 52 20117 205 35 14.8 31.7 | 168 45 -8.9 43.7 44 50 20410 265 20 19.9 1.7 | 165 14 -3.8 13.7 45 48 20726 265 24 23.9 2.1 | 181 14 0.2 14.1 46 43 21336 230 21 16.1 13.5 | 163 27 -7.6 25.5 47 39 21946 240 23 19.9 11.5 | 171 24 -3.8 23.5 48 35 22555 270 14 14.0 -0.0 | 141 15 -9.7 12.0 49 34 22860 295 21 19.0 -8.9 | 124 6 -4.7 3.1 50 32 23165 325 3 1.7 -2.5 | 113 24 -22.0 9.5 51 31 23470 295 10 9.1 -4.2 | 118 17 -14.7 7.8 52 30 23580 20 6 -2.1 -5.6 | 104 27 -25.8 6.3 53 29 23774 310 11 8.4 -7.1 | 108 16 -15.3 4.9 54 26 24384 190 6 1.0 5.9 | 128 29 -22.7 17.9 55 24 24994 280 10 9.8 -1.7 | 126 17 -13.9 10.2 56 23 25298 305 13 10.6 -7.5 | 109 14 -13.1 4.5 57 22 25603 270 10 10.0 -0.0 | 131 18 -13.7 12.0 58 20 26080 360 5 -0.0 -5.0 | 106 25 -23.7 7.0 59 18 26822 340 10 3.4 -9.4 | 97 20 -20.3 2.6 60 17 27127 330 3 1.5 -2.6 | 113 24 -22.2 9.4 61 16 27432 305 6 4.9 -3.4 | 114 21 -18.8 8.5 62 15 27737 360 15 -0.0 -15.0 | 83 24 -23.7 -3.0 63 15 28042 35 10 -5.7 -8.2 | 97 30 -29.5 3.8 64 14 28346 350 13 2.3 -12.8 | 88 21 -21.5 -0.8 65 13 28651 355 5 0.4 -5.0 | 107 24 -23.3 7.0 66 12 29261 355 11 1.0 -11.0 | 93 23 -22.8 1.0 67 11 29566 340 19 6.5 -17.9 | 71 18 -17.2 -5.9 68 11 29870 20 20 -6.8 -18.8 | 77 31 -30.6 -6.8 69 10 30175 20 18 -6.2 -16.9 | 81 30 -29.9 -4.9 70 10 30410 10 19 -3.3 -18.7 | 76 28 -27.0 -6.7 Wind Parameters Mean winds (0-6000m): 266.8 at 35.4 knts Storm direction: 296.8 at 26.6 knts Shear (0-3000m) pos: 1.4 neg: 3.7 tot: 5.1 10-3/s Storm rel Dir Shear (0-3000m): 83.3 deg Storm rel helicity (0-3000m) pos: 29.6 neg: -30.0 tot: -0.5 m^2/s^2 ave: -0.2 10^-3 m/s^2 rel: -0.01 Storm rel vorticity (0-3000m) horiz: 10.5 stream: -0.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.01 Bulk Shear: 76.97 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 ------------------------------------------------------------------------------- 500 301 16 110 11| 0.0 15.3 15.3| 3.7 -7.9 -4.2 -8.5 0.00| 15.9 0.0 1000 298 21 113 6| 0.0 11.8 11.8| 4.8 -9.4 -4.5 -4.5 0.07| 13.5 1.0 1500 296 25 135 2| 2.3 7.8 10.2| 12.5 -9.4 3.1 2.1 0.18| 11.7 2.1 2000 296 28 286 1| 2.1 5.9 8.0| 28.2 -9.4 18.9 9.4 0.29| 10.8 3.1 2500 296 29 286 2| 1.7 4.4 6.0| 28.2 -23.6 4.6 1.9 0.04| 11.2 0.4 3000 293 28 252 2| 1.4 3.7 5.1| 29.6 -30.0 -0.5 -0.2 -0.01| 10.5 -0.1 4000 285 29 226 6| 1.1 4.4 5.5| 48.4 -33.1 15.3 3.8 0.04| 10.1 0.4 5000 276 32 223 12| 0.8 5.1 5.9| 82.9 -66.5 16.4 3.3 0.04| 10.0 0.4 6000 267 35 220 18| 0.7 5.0 5.7|136.4-114.4 22.0 3.7 0.03| 9.6 0.3 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251128.00.gif