UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101912.upa.cvt Date: 1200Z 19 OCT 25 Searching for KIAD... Searching the city database file for: KIAD ... Date:1200Z 19 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 1002 98 12.2 11.1 93 1.1 11.6 155 6 285.2 286.6 284.7 308.2 8.30 1 1000 103 12.4 11.9 97 0.5 12.1 165 8 285.5 287.1 285.2 309.9 8.78 2 994 154 13.8 12.2 90 1.6 12.9 174 11 287.4 289.0 286.2 312.6 9.01 3 988 205 13.6 12.2 91 1.4 12.8 183 14 287.7 289.3 286.4 313.1 9.07 4 961 439 14.2 12.6 90 1.6 13.2 202 22 290.6 292.3 288.0 317.7 9.58 5 952 519 15.4 12.4 82 3.0 13.6 204 23 292.6 294.3 288.7 319.8 9.54 6 947 564 17.4 12.6 73 4.8 14.4 204 24 295.1 296.9 289.7 323.1 9.72 7 934 683 18.8 12.8 68 6.0 15.0 205 25 297.7 299.5 290.8 326.8 9.99 8 929 729 18.6 12.6 68 6.0 14.8 205 26 298.0 299.8 290.8 326.8 9.91 9 925 766 18.6 12.6 68 6.0 14.8 205 26 298.3 300.1 291.0 327.4 9.96 10 871 1278 14.2 11.4 83 2.8 12.4 189 27 298.9 300.7 291.0 327.5 9.76 11 851 1474 12.8 8.5 75 4.3 10.2 185 29 299.5 301.0 289.9 323.6 8.21 12 850 1484 12.8 8.1 73 4.7 10.0 185 29 299.6 301.0 289.7 323.1 8.00 13 844 1543 12.6 5.6 62 7.0 8.6 188 30 300.0 301.2 288.8 320.0 6.77 14 839 1593 12.4 5.4 62 7.0 8.5 190 30 300.3 301.5 288.8 320.2 6.71 15 838 1603 12.4 4.4 58 8.0 8.0 190 30 300.4 301.5 288.4 319.0 6.26 16 835 1633 13.2 -2.8 33 16.0 5.4 191 30 301.5 302.2 286.4 312.8 3.72 17 833 1653 13.2 -5.8 26 19.0 4.5 192 30 301.7 302.3 285.7 310.9 2.97 18 831 1674 13.2 -7.8 22 21.0 4.0 193 31 301.9 302.4 285.2 309.8 2.55 19 793 2066 12.2 -12.8 16 25.0 2.2 204 27 304.9 305.3 285.5 310.7 1.80 20 782 2183 11.4 -10.6 20 22.0 2.2 205 26 305.3 305.7 286.1 312.2 2.18 21 755 2475 10.6 -28.4 5 39.0 -0.8 204 24 307.5 307.6 285.0 309.2 0.49 22 700 3101 7.2 -16.8 16 24.0 -1.6 205 25 310.5 310.7 287.2 315.3 1.46 23 698 3124 7.2 -15.8 18 23.0 -1.4 204 25 310.7 311.0 287.4 316.0 1.60 24 681 3327 6.4 -19.6 14 26.0 -2.6 192 28 312.0 312.2 287.4 316.0 1.19 25 675 3399 6.0 -19.0 15 25.0 -2.8 191 29 312.4 312.6 287.6 316.6 1.26 26 670 3460 5.4 -10.6 30 16.0 -1.3 193 30 312.4 312.8 288.9 320.6 2.54 27 667 3496 5.2 -15.8 20 21.0 -2.7 194 31 312.5 312.8 288.1 318.0 1.67 28 665 3521 5.2 -16.8 19 22.0 -2.9 195 31 312.8 313.1 288.1 317.9 1.54 29 664 3533 5.2 -12.8 26 18.0 -2.0 196 31 312.9 313.3 288.7 319.9 2.15 30 663 3545 5.2 -9.8 33 15.0 -1.3 196 32 313.1 313.6 289.3 321.9 2.74 31 659 3595 4.8 -8.2 38 13.0 -1.0 198 33 313.2 313.8 289.8 323.2 3.12 32 641 3819 2.6 -7.4 48 10.0 -1.9 204 34 313.2 313.8 290.0 324.1 3.42 33 638 3857 2.6 -9.4 41 12.0 -2.6 204 34 313.6 314.1 289.7 323.0 2.94 34 625 4023 1.6 -8.4 47 10.0 -2.8 209 33 314.3 314.9 290.2 324.7 3.24 35 620 4088 1.0 -6.0 59 7.0 -2.3 210 33 314.3 315.1 290.8 326.9 3.94 36 617 4127 0.8 -8.2 51 9.0 -3.2 211 33 314.5 315.2 290.3 325.3 3.34 37 613 4179 0.2 -6.8 59 7.0 -3.0 212 33 314.4 315.1 290.7 326.4 3.75 38 603 4310 -0.7 -8.7 55 8.0 -4.2 216 33 314.9 315.5 290.4 325.5 3.29 39 600 4350 -0.7 -12.7 40 12.0 -5.4 217 33 315.3 315.8 289.7 323.2 2.40 40 597 4390 -1.1 -9.1 55 8.0 -4.6 217 33 315.3 315.9 290.5 325.7 3.22 41 585 4551 -2.5 -10.5 54 8.0 -5.8 221 34 315.5 316.1 290.3 325.0 2.94 42 581 4606 -2.7 -12.7 46 10.0 -6.6 223 35 315.9 316.4 290.0 324.0 2.48 43 576 4674 -2.7 -16.7 33 14.0 -7.7 225 35 316.7 317.0 289.6 322.7 1.80 44 575 4688 -2.7 -16.7 33 14.0 -7.7 225 35 316.8 317.2 289.6 322.8 1.80 45 541 5168 -6.3 -15.3 49 9.0 -9.5 235 36 318.1 318.5 290.3 325.3 2.15 46 530 5328 -7.5 -18.5 41 11.0 -11.1 236 36 318.5 318.9 290.0 324.2 1.68 47 528 5357 -7.5 -22.5 29 15.0 -11.9 236 36 318.9 319.1 289.6 323.0 1.19 48 523 5431 -7.9 -24.9 24 17.0 -12.6 237 36 319.3 319.5 289.6 322.6 0.97 49 517 5521 -7.5 -29.5 15 22.0 -12.9 238 35 320.8 320.9 289.7 323.1 0.64 50 515 5551 -7.7 -25.7 22 18.0 -12.6 238 35 320.9 321.1 290.0 324.1 0.92 51 500 5780 -9.7 -24.7 28 15.0 -13.8 240 35 321.2 321.4 290.2 324.8 1.03 52 492 5905 -10.7 -24.7 31 14.0 -14.5 240 34 321.5 321.7 290.3 325.1 1.05 53 477 6143 -12.5 -30.5 21 18.0 -16.6 238 32 322.1 322.2 290.1 324.4 0.63 54 467 6306 -11.7 -42.7 6 31.0 -16.9 230 34 325.1 325.1 290.5 325.8 0.19 55 400 7480 -19.5 -47.5 6 28.0 -23.1 225 32 329.6 329.7 291.7 330.2 0.13 56 300 9540 -35.5 -45.5 35 10.0 -36.4 245 24 335.3 335.4 293.4 336.2 0.22 57 250 10780 -46.1 -53.1 45 7.0 -46.4 255 32 337.5 337.6 293.8 338.0 0.11 58 203 12126 -56.6 -59.3 71 2.7 -56.6 280 69 341.8 341.8 294.8 342.0 0.06 59 200 12220 -57.3 -59.7 74 2.4 -57.3 285 66 342.0 342.0 294.8 342.3 0.06 60 150 14010 -64.5 -78.5 13 14.0 -64.6 265 38 359.0 359.0 298.5 359.0 0.01 61 140 14433 -66.9 -79.9 14 13.0 -67.0 280 40 361.9 361.9 299.1 361.9 0.00 62 100 16470 -69.3 -86.3 7 17.0 -69.4 280 30 393.8 393.8 304.3 393.8 0.00 63 94 16839 -70.3 -86.3 8 16.0 -70.4 280 30 398.9 398.9 305.0 398.9 0.00 64 85 17444 -65.7 -86.7 4 21.0 -65.8 279 23 419.9 419.9 307.7 419.9 0.00 65 82 17661 -66.9 -86.9 4 20.0 -67.1 304 20 421.7 421.7 307.9 421.7 0.00 66 80 17811 -65.5 -86.5 4 21.0 -65.7 303 18 427.6 427.6 308.6 427.6 0.00 67 72 18449 -67.3 -88.3 4 21.0 -67.5 280 10 436.9 436.9 309.6 436.9 0.00 68 70 18620 -65.5 -88.5 3 23.0 -65.7 220 11 444.3 444.3 310.3 444.3 0.00 69 69 18707 -64.9 -87.9 3 23.0 -65.1 218 11 447.4 447.4 310.6 447.4 0.00 70 67 18886 -65.1 -88.1 3 23.0 -65.3 215 10 450.7 450.7 310.9 450.7 0.00 71 62 19361 -62.5 -87.5 2 25.0 -62.9 254 15 466.6 466.6 312.4 466.6 0.00 72 58 19769 -65.1 -89.1 2 24.0 -65.4 280 10 469.7 469.7 312.6 469.7 0.00 73 55 20094 -63.1 -88.1 2 25.0 -63.4 308 11 481.5 481.5 313.5 481.5 0.00 74 53 20321 -63.9 -88.9 2 25.0 -64.3 295 9 484.8 484.8 313.8 484.8 0.00 75 50 20680 -61.1 -88.1 2 27.0 -61.6 270 6 499.5 499.5 314.9 499.5 0.00 76 48 20934 -59.5 -87.5 1 28.0 -60.2 233 6 509.2 509.2 315.6 509.2 0.00 77 46 21200 -60.5 -87.5 2 27.0 -61.1 242 7 513.0 513.0 315.8 513.0 0.00 78 45 21337 -59.3 -87.3 1 28.0 -60.0 256 10 519.1 519.1 316.2 519.2 0.00 79 44 21478 -59.5 -87.5 1 28.0 -60.2 272 15 522.0 522.0 316.4 522.0 0.00 80 36 22735 -58.9 -86.9 2 28.0 -59.8 327 11 554.4 554.4 318.3 554.4 0.01 81 32 23479 -56.1 -86.1 1 30.0 -57.5 321 11 580.9 580.9 319.7 580.9 0.01 82 30 23890 -55.5 -85.5 1 30.0 -57.0 200 13 593.3 593.3 320.3 593.4 0.01 83 25 25063 -52.7 -83.7 1 31.0 -55.0 249 28 633.1 633.1 322.0 633.2 0.01 84 24 25327 -53.5 -83.5 1 30.0 -55.7 261 26 638.2 638.3 322.2 638.4 0.02 85 22 25889 -52.7 -83.7 1 31.0 -55.2 255 21 656.7 656.7 322.9 656.8 0.02 86 21 26191 -50.1 -83.1 1 33.0 -53.4 279 18 673.4 673.4 323.6 673.5 0.02 87 20 26510 -51.1 -83.1 1 32.0 -54.2 305 24 679.8 679.8 323.7 679.9 0.02 88 17 27571 -48.9 -81.9 1 33.0 -53.1 275 9 719.2 719.2 325.0 719.4 0.03 89 15 28388 -51.3 -83.3 1 32.0 -55.1 255 16 737.4 737.4 325.6 737.6 0.03 90 12 29846 -48.5 -82.5 1 34.0 -54.0 271 30 795.9 795.9 327.1 796.2 0.04 91 10 31040 -50.3 -83.3 1 33.0 -55.6 255 19 831.8 831.8 328.0 832.1 0.04 92 10 31040 -50.5 -82.5 1 32.0 -55.8 255 19 831.0 831.1 328.0 831.5 0.04 93 9.5 31375 -49.3 -82.3 1 33.0 -55.2 847.9 847.9 328.4 848.3 0.05 TRP 140 14433 -66.9 -79.9 14 13.0 -67.0 280 40 361.9 361.9 299.1 361.9 0.00 WND 203 12126 -56.6 -59.3 71 2.7 -56.6 280 69 341.8 341.8 294.8 342.0 0.06 Sounding variables and indices 1000-500 mb thick: 5677.00 m Freezing level: 610.78 mb = 4208.00 m = 13805.61 ft Wetbulb zero: 762.23 mb = 2395.99 m = 7860.75 ft Precipitable water: 0.90 inches Sfc-500 mean rel hum: 42.29 % Est. max temperature: 26.45 C = 79.61 F Sfc-Lift cond lev (LCL): 985.69 mb = 224.79 m = 737.49 ft T: 13.65 C 700-500 lapse rate: 6.31 C/km ThetaE index: 10.34 C Layer 838.0- 793.0 mb Conv cond level (CCL): 1000.00 mb = 103.00 m = 337.92 ft Mean mixing ratio: 9.57 g/kg Conv temperature: 13.37 C = 56.07 F Cap Strength: 7.00 C Lifted Index: 6.33 C Risk: None Lifted Index @300 mb: 10.92 C Lifted Index @700 mb: 6.48 C Showalter Index: 4.99 C Risk: None Total Totals Index: 40.30 C Risk: None Vertical Totals Index: 22.50 C Cross Totals Index: 17.80 C K Index: 6.60 Risk: None Sweat Index: 317.59 Risk: Showers and thunderstorms possible Energy Index: 0.45 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 60.32 J/kg Max Up Vert Vel: 10.98 m/s Conv Inhibition (B-): 54493.88 J/kg Cap Strength: 6.98 C Lift Cond Lev (LCL): 902.28 mb = 977.75 m = 3207.82 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 242 at 22 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 1002 98 155 6 -2.5 5.4 | 77 23 -22.2 -5.1 1 1000 103 165 8 -2.1 7.7 | 83 22 -21.7 -2.8 2 977 305 200 19 6.5 17.9 | 119 15 -13.2 7.3 3 942 610 205 25 10.6 22.7 | 143 15 -9.1 12.1 4 925 766 205 26 11.0 23.6 | 146 16 -8.7 13.0 5 909 914 205 29 12.3 26.3 | 155 17 -7.4 15.7 6 877 1219 190 27 4.7 26.6 | 137 22 -15.0 16.1 7 850 1484 185 29 2.5 28.9 | 137 25 -17.1 18.4 8 816 1829 200 32 10.9 30.1 | 156 21 -8.7 19.5 9 786 2134 205 26 11.0 23.6 | 146 16 -8.7 13.0 10 758 2438 205 24 10.1 21.8 | 140 15 -9.5 11.2 11 731 2743 195 27 7.0 26.1 | 141 20 -12.7 15.5 12 704 3048 205 25 10.6 22.7 | 143 15 -9.1 12.1 13 700 3101 205 25 10.6 22.7 | 143 15 -9.1 12.1 14 678 3353 190 28 4.9 27.6 | 139 23 -14.8 17.0 15 653 3658 200 34 11.6 31.9 | 159 23 -8.0 21.4 16 605 4267 215 33 18.9 27.0 | 177 17 -0.7 16.5 17 560 4877 230 36 27.6 23.1 | 212 15 7.9 12.6 18 539 5182 235 36 29.5 20.6 | 224 14 9.8 10.1 19 500 5780 240 35 30.3 17.5 | 237 13 10.7 7.0 20 480 6096 240 32 27.7 16.0 | 236 10 8.1 5.5 21 461 6401 225 35 24.7 24.7 | 200 15 5.1 14.2 22 400 7480 225 32 22.6 22.6 | 194 12 3.0 12.1 23 392 7620 225 32 22.6 22.6 | 194 12 3.0 12.1 24 331 8839 245 38 34.4 16.1 | 250 16 14.8 5.5 25 317 9144 245 35 31.7 14.8 | 251 13 12.1 4.3 26 300 9540 245 24 21.8 10.1 | 281 2 2.1 -0.4 27 278 10058 250 21 19.7 7.2 | 359 3 0.1 -3.4 28 250 10780 255 32 30.9 8.3 | 281 11 11.3 -2.3 29 231 11278 265 37 36.9 3.2 | 293 19 17.2 -7.3 30 203 12126 280 69 68.0 -12.0 | 295 53 48.3 -22.5 31 201 12192 280 69 68.0 -12.0 | 295 53 48.3 -22.5 32 200 12220 285 66 63.8 -17.1 | 302 52 44.1 -27.6 33 182 12802 290 51 47.9 -17.4 | 315 40 28.3 -28.0 34 165 13411 270 27 27.0 -0.0 | 325 13 7.3 -10.5 35 150 14010 265 38 37.9 3.3 | 292 20 18.2 -7.2 36 150 14021 265 40 39.8 3.5 | 289 21 20.2 -7.1 37 140 14433 280 40 39.4 -6.9 | 312 26 19.7 -17.5 38 129 14935 285 39 37.7 -10.1 | 319 27 18.0 -20.6 39 123 15240 265 44 43.8 3.8 | 285 25 24.2 -6.7 40 117 15545 270 50 50.0 -0.0 | 289 32 30.3 -10.5 41 111 15850 275 33 32.9 -2.9 | 315 19 13.2 -13.4 42 105 16154 270 43 43.0 -0.0 | 294 26 23.3 -10.5 43 100 16470 280 30 29.5 -5.2 | 328 19 9.9 -15.7 44 95 16764 280 30 29.5 -5.2 | 328 19 9.9 -15.7 45 91 17069 280 30 29.5 -5.2 | 328 19 9.9 -15.7 46 86 17374 270 24 24.0 -0.0 | 338 11 4.3 -10.5 47 82 17678 305 20 16.4 -11.5 | 8 22 -3.3 -22.0 48 78 17983 300 16 13.9 -8.0 | 17 19 -5.8 -18.5 49 74 18288 325 15 8.6 -12.3 | 26 25 -11.0 -22.8 50 70 18593 240 6 5.2 3.0 | 62 16 -14.5 -7.5 51 70 18620 220 11 7.1 8.4 | 80 13 -12.6 -2.1 52 67 18898 215 10 5.7 8.2 | 80 14 -13.9 -2.3 53 64 19202 225 21 14.8 14.8 | 132 6 -4.8 4.3 54 61 19507 280 10 9.8 -1.7 | 39 16 -9.8 -12.3 55 58 19812 280 10 9.8 -1.7 | 39 16 -9.8 -12.3 56 55 20117 310 11 8.4 -7.1 | 33 21 -11.2 -17.6 57 50 20680 270 6 6.0 -0.0 | 52 17 -13.7 -10.5 58 50 20726 250 10 9.4 3.4 | 55 12 -10.3 -7.1 59 47 21031 225 4 2.8 2.8 | 65 19 -16.8 -7.7 60 45 21336 255 10 9.7 2.6 | 51 13 -10.0 -7.9 61 43 21641 290 21 19.7 -7.2 | 360 18 0.1 -17.7 62 41 21946 315 10 7.1 -7.1 | 36 22 -12.6 -17.6 63 39 22250 335 6 2.5 -5.4 | 47 23 -17.1 -16.0 64 37 22555 305 12 9.8 -6.9 | 29 20 -9.8 -17.4 65 35 22860 340 10 3.4 -9.4 | 39 26 -16.2 -19.9 66 34 23165 315 18 12.7 -12.7 | 17 24 -6.9 -23.3 67 32 23470 325 11 6.3 -9.0 | 34 24 -13.3 -19.5 68 30 23890 200 13 4.4 12.2 | 96 15 -15.2 1.7 69 29 24079 240 3 2.6 1.5 | 62 19 -17.1 -9.0 70 28 24384 205 18 7.6 16.3 | 116 13 -12.0 5.8 71 27 24689 230 30 23.0 19.3 | 201 9 3.3 8.7 72 24 25298 260 26 25.6 4.5 | 315 8 6.0 -6.0 73 23 25603 265 26 25.9 2.3 | 323 10 6.2 -8.3 74 22 25908 255 21 20.3 5.4 | 353 5 0.6 -5.1 75 21 26213 280 18 17.7 -3.1 | 8 14 -1.9 -13.7 76 20 26510 305 24 19.7 -13.8 | 360 24 0.0 -24.3 77 20 26518 270 23 23.0 -0.0 | 342 11 3.3 -10.5 78 19 26822 295 26 23.6 -11.0 | 350 22 3.9 -21.5 79 17 27432 280 5 4.9 -0.9 | 52 19 -14.7 -11.4 80 17 27737 270 14 14.0 -0.0 | 28 12 -5.7 -10.5 81 16 28042 275 15 14.9 -1.3 | 22 13 -4.7 -11.8 82 15 28346 250 15 14.1 5.1 | 46 8 -5.6 -5.4 83 14 28651 285 23 22.2 -6.0 | 351 17 2.6 -16.5 84 13 29261 295 28 25.4 -11.8 | 346 23 5.7 -22.4 85 13 29566 255 28 27.0 7.2 | 294 8 7.4 -3.3 86 11 30175 290 33 31.0 -11.3 | 333 25 11.4 -21.8 87 10 31040 255 19 18.4 4.9 | 13 6 -1.3 -5.6 Wind Parameters Mean winds (0-6000m): 211.8 at 29.7 knts Storm direction: 241.8 at 22.3 knts Shear (0-3000m) pos: 4.0 neg: 1.7 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 66.1 deg Storm rel helicity (0-3000m) pos: 155.5 neg: -48.2 tot: 107.2 m^2/s^2 ave: 35.7 10^-3 m/s^2 rel: 0.35 Storm rel vorticity (0-3000m) horiz: 10.5 stream: 3.7 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 2.77 Bulk Shear: 21.75 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 ------------------------------------------------------------------------------- 500 199 18 115 15| 22.0 0.0 22.0| 94.0 0.0 94.0 188.0 0.91| 22.8 20.7 1000 201 23 132 15| 11.0 2.6 13.6|108.0 -17.1 90.8 90.8 0.65| 15.7 10.3 1500 197 24 135 18| 7.3 3.0 10.3|123.4 -30.1 93.3 62.2 0.52| 13.3 6.9 2000 197 26 140 19| 5.7 2.3 8.0|151.4 -39.8 111.6 55.8 0.45| 12.8 5.8 2500 199 26 140 18| 4.6 2.1 6.7|152.1 -48.2 103.9 41.6 0.38| 11.3 4.3 3000 199 26 141 18| 4.0 1.7 5.7|155.5 -48.2 107.2 35.7 0.35| 10.5 3.7 4000 199 27 145 18| 3.7 2.2 5.9|224.4 -52.7 171.7 42.9 0.40| 10.5 4.2 5000 205 29 154 17| 4.1 1.8 5.8|278.9 -52.7 226.2 45.2 0.48| 9.9 4.7 6000 212 30 165 15| 3.3 1.5 4.8|292.4 -53.4 239.0 39.8 0.48| 8.8 4.2 Wrote GIF file: /home/apache/climate/data/raob//KIAD/skewt/KIAD.skewt.20251019.12.gif