UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121812.upa.cvt Date: 1200Z 18 DEC 25 Searching for NSTU... Searching the city database file for: NSTU ... Date:1200Z 18 DEC 25 Station: NSTU WMO ident: 91765 Latitude: -14.33 Longitude: -170.72 Elevation: 3.00 ------------------------------------------------------------------------------- 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 1009 3 26.8 24.1 85 2.7 24.8 280 2 299.2 302.7 297.7 354.9 19.05 1 1003 55 27.6 23.4 78 4.2 24.5 270 4 300.5 303.9 297.5 354.4 18.36 2 1000 81 27.4 23.4 79 4.0 24.5 265 5 300.5 303.9 297.6 354.6 18.41 3 943 599 23.0 21.6 92 1.4 22.0 236 13 301.2 304.4 297.2 352.6 17.48 4 925 768 22.2 18.9 82 3.3 19.9 235 13 302.0 304.8 295.8 346.3 15.02 5 912 891 21.8 17.1 75 4.7 18.6 235 16 302.8 305.3 295.0 343.0 13.57 6 909 920 22.0 16.0 69 6.0 17.9 235 16 303.3 305.7 294.6 340.9 12.68 7 867 1330 18.8 16.0 84 2.8 16.9 249 17 304.1 306.6 295.2 343.7 13.31 8 850 1501 18.2 13.9 76 4.3 15.3 255 16 305.2 307.4 294.4 340.6 11.83 9 824 1767 16.8 12.1 74 4.7 13.7 271 13 306.5 308.5 294.1 339.1 10.83 10 821 1798 16.6 12.3 76 4.3 13.8 273 12 306.6 308.6 294.3 339.7 11.02 11 815 1860 16.4 10.4 68 6.0 12.6 274 12 307.0 308.8 293.4 336.5 9.76 12 812 1892 16.6 7.6 55 9.0 11.2 273 12 307.5 309.0 292.3 332.1 8.09 13 806 1955 16.0 8.0 59 8.0 11.1 271 13 307.5 309.1 292.5 333.0 8.38 14 799 2029 15.8 5.8 51 10.0 9.9 269 13 308.1 309.5 291.8 330.3 7.25 15 793 2093 15.4 9.4 67 6.0 11.6 266 14 308.3 310.1 293.5 336.9 9.38 16 791 2115 15.2 8.2 63 7.0 10.9 266 14 308.3 310.0 293.0 334.7 8.66 17 789 2136 15.2 5.2 51 10.0 9.3 265 14 308.6 309.9 291.7 330.2 7.04 18 782 2212 14.6 9.6 72 5.0 11.4 258 14 308.7 310.5 293.9 338.1 9.64 19 779 2244 14.8 7.8 63 7.0 10.5 255 14 309.3 310.9 293.2 335.4 8.55 20 752 2542 12.6 9.7 82 2.9 10.7 240 15 310.0 311.9 294.6 340.9 10.10 21 744 2632 12.4 8.2 76 4.2 9.8 244 14 310.8 312.5 294.1 339.0 9.21 22 741 2666 12.4 5.4 62 7.0 8.2 246 14 311.1 312.6 293.0 334.6 7.61 23 738 2700 12.2 7.8 74 4.4 9.5 248 14 311.3 313.0 294.1 339.1 9.04 24 736 2722 12.2 7.2 71 5.0 9.2 249 14 311.5 313.1 293.9 338.3 8.69 25 732 2768 12.8 -2.2 35 15.0 5.0 251 14 312.6 313.5 290.7 326.7 4.44 26 729 2803 13.0 -7.0 24 20.0 3.5 253 14 313.2 313.8 289.7 323.2 3.10 27 727 2826 12.8 -7.2 24 20.0 3.4 254 14 313.3 313.8 289.7 323.1 3.06 28 723 2872 12.6 -6.4 26 19.0 3.5 256 14 313.5 314.2 290.0 324.0 3.27 29 717 2942 11.8 1.8 50 10.0 6.2 260 14 313.4 314.6 292.4 332.5 6.09 30 707 3060 11.2 2.2 54 9.0 6.1 266 13 314.0 315.2 292.8 333.9 6.36 31 705 3084 11.2 0.2 47 11.0 5.2 267 13 314.2 315.3 292.2 331.6 5.51 32 700 3143 10.6 2.6 58 8.0 6.1 270 13 314.2 315.5 293.0 335.0 6.61 33 687 3299 9.4 5.5 77 3.9 7.1 274 12 314.6 316.2 294.4 340.4 8.28 34 676 3433 8.4 2.4 66 6.0 5.0 273 12 314.9 316.2 293.3 336.1 6.75 35 663 3594 7.2 2.2 70 5.0 4.4 269 13 315.3 316.6 293.5 336.7 6.78 36 658 3656 6.8 0.8 66 6.0 3.5 268 13 315.5 316.7 293.1 335.1 6.17 37 648 3782 6.2 -0.8 61 7.0 2.5 265 13 316.3 317.3 292.8 334.0 5.58 38 644 3833 5.6 4.5 93 1.1 4.9 264 14 316.1 317.7 294.8 342.0 8.23 39 634 3961 5.4 2.5 82 2.9 3.7 260 14 317.3 318.7 294.4 340.3 7.25 40 631 4000 5.6 -1.4 61 7.0 1.9 261 14 318.0 319.0 293.2 335.5 5.48 41 629 4026 5.6 -3.4 52 9.0 1.0 262 14 318.3 319.2 292.7 333.5 4.73 42 614 4224 4.2 1.2 81 3.0 2.5 268 13 318.9 320.2 294.5 340.6 6.82 43 604 4358 3.8 0.4 78 3.4 1.9 272 13 319.9 321.2 294.6 340.9 6.54 44 565 4898 0.0 -1.7 88 1.7 -0.9 290 14 321.6 322.8 294.6 341.0 5.99 45 563 4926 0.0 -2.7 82 2.7 -1.4 288 14 321.9 323.0 294.3 340.0 5.58 46 549 5128 -1.3 -3.6 84 2.3 -2.5 275 16 322.7 323.8 294.4 340.2 5.35 47 539 5275 -2.1 -5.8 76 3.7 -3.9 273 17 323.5 324.4 294.0 338.6 4.61 48 529 5424 -2.9 -5.6 82 2.7 -4.2 278 17 324.2 325.2 294.3 339.9 4.77 49 519 5575 -3.7 -7.2 77 3.5 -5.4 283 17 325.0 325.9 294.1 339.3 4.30 50 514 5652 -3.7 -11.7 54 8.0 -7.1 285 17 325.9 326.5 293.4 336.2 3.04 51 512 5683 -3.9 -11.9 54 8.0 -7.2 286 17 326.1 326.7 293.4 336.2 3.00 52 509 5729 -4.1 -14.1 46 10.0 -8.1 288 17 326.4 326.9 293.0 335.0 2.52 53 507 5760 -4.5 -12.5 54 8.0 -7.8 289 17 326.3 326.8 293.3 336.0 2.89 54 500 5870 -5.3 -13.3 53 8.0 -8.5 280 18 326.6 327.1 293.3 335.9 2.74 55 400 7590 -15.1 -19.4 70 4.3 -16.5 275 23 335.4 335.8 295.0 342.7 2.06 56 300 9700 -28.9 -47.9 14 19.0 -31.0 295 29 344.6 344.7 295.6 345.3 0.17 57 250 10980 -38.9 -57.9 12 19.0 -40.0 300 16 348.2 348.2 296.3 348.5 0.06 58 200 12460 -52.9 -62.9 29 10.0 -53.2 320 25 349.0 349.0 296.4 349.2 0.04 59 150 14260 -67.5 -72.5 49 5.0 -67.5 325 23 353.8 353.8 297.5 353.9 0.01 60 100 16600 -83.1 -89.1 34 6.0 -83.1 300 18 367.2 367.2 300.1 367.2 0.00 61 93 17002 -84.9 -90.9 33 6.0 -84.9 325 24 371.3 371.3 300.8 371.3 0.00 62 86 17436 -82.5 -89.5 29 7.0 -82.5 327 22 384.6 384.6 303.0 384.6 0.00 63 81 17771 -82.5 -89.5 29 7.0 -82.5 350 10 391.2 391.2 304.0 391.2 0.00 64 79 17910 -83.3 -89.3 34 6.0 -83.3 11 4 392.4 392.4 304.1 392.4 0.00 65 78 17981 -82.9 -89.9 29 7.0 -82.9 21 1 394.6 394.6 304.5 394.6 0.00 66 75 18202 -78.7 -87.7 22 9.0 -78.7 50 8 407.9 407.9 306.2 407.9 0.00 67 74 18279 -78.9 -88.9 18 10.0 -78.9 60 10 409.0 409.0 306.4 409.0 0.00 68 72 18436 -75.3 -87.3 14 12.0 -75.3 37 14 419.9 419.9 307.7 419.9 0.00 69 70 18600 -73.9 -88.9 8 15.0 -74.0 15 7 426.3 426.3 308.4 426.3 0.00 70 69 18684 -73.9 -88.9 8 15.0 -74.0 14 8 428.0 428.0 308.6 428.1 0.00 71 63 19212 -75.9 -88.9 11 13.0 -75.9 154 10 434.9 434.9 309.4 434.9 0.00 72 55 20002 -72.9 -89.9 6 17.0 -73.0 84 18 459.0 459.0 311.7 459.0 0.00 73 52 20330 -73.7 -90.7 6 17.0 -73.8 72 24 464.6 464.6 312.2 464.6 0.00 74 50 20560 -71.9 -90.9 4 19.0 -72.0 80 21 474.1 474.1 313.0 474.1 0.00 75 49 20679 -72.3 -91.3 4 19.0 -72.4 84 20 475.9 475.9 313.1 475.9 0.00 76 47 20926 -69.7 -90.7 3 21.0 -69.9 71 23 487.8 487.8 314.1 487.8 0.00 77 43 21458 -67.7 -90.7 2 23.0 -67.9 73 30 505.3 505.3 315.3 505.3 0.00 78 40 21897 -64.3 -90.3 2 26.0 -64.7 81 35 524.4 524.4 316.6 524.4 0.00 79 39 22052 -65.1 -91.1 2 26.0 -65.5 84 37 526.2 526.2 316.7 526.2 0.00 80 34 22895 -61.5 -89.5 1 28.0 -62.2 100 46 556.7 556.7 318.5 556.7 0.00 81 34 22895 -61.5 -89.5 1 28.0 -62.2 100 46 556.7 556.7 318.5 556.7 0.00 82 33 23081 -59.1 -89.1 1 30.0 -60.0 103 48 567.8 567.8 319.0 567.9 0.00 83 31 23474 -58.1 -88.1 1 30.0 -59.2 109 52 580.8 580.8 319.7 580.8 0.01 84 30 23680 -58.7 -87.7 1 29.0 -59.7 90 58 584.6 584.6 319.9 584.7 0.01 85 27 24341 -59.5 -88.5 1 29.0 -60.6 99 61 600.3 600.3 320.6 600.3 0.01 86 25 24825 -58.2 -88.0 1 29.8 -59.5 90 66 617.3 617.3 321.4 617.3 0.01 87 22 25634 -56.1 -87.1 1 31.0 -57.9 88 61 646.6 646.6 322.6 646.6 0.01 88 21 25932 -52.7 -85.7 1 33.0 -55.4 87 56 665.5 665.5 323.3 665.6 0.01 89 21 25932 -52.5 -85.5 1 33.0 -55.2 87 56 666.1 666.1 323.3 666.2 0.01 90 20 26250 -49.5 -84.5 1 35.0 -53.1 85 51 684.7 684.7 323.9 684.8 0.02 91 18 26945 -46.5 -82.5 1 36.0 -51.4 85 43 715.1 715.1 324.9 715.3 0.02 92 16 27734 -43.3 -81.3 1 38.0 -50.0 77 34 750.0 750.0 326.0 750.3 0.03 93 15 28167 -44.9 -81.9 1 37.0 -51.1 74 28 758.7 758.7 326.2 758.9 0.03 94 14 28630 -43.5 -81.5 1 38.0 -50.5 101 28 778.5 778.5 326.7 778.9 0.04 95 11 30239 -47.5 -83.5 1 36.0 -53.7 108 20 819.6 819.6 327.7 819.9 0.03 96 10 30870 -46.9 -82.9 1 36.0 -53.7 90 22 844.5 844.5 328.3 844.9 0.04 97 9.8 31004 -47.1 -83.1 1 36.0 -53.9 94 22 848.6 848.6 328.4 849.0 0.04 98 9.5 31210 -44.7 -82.7 1 38.0 -52.8 100 22 865.3 865.3 328.7 865.7 0.04 99 9.2 31424 -45.3 -82.3 1 37.0 -53.2 106 22 871.0 871.0 328.8 871.5 0.05 100 8.8 31721 -45.1 -83.1 1 38.0 -53.3 115 22 882.9 882.9 329.1 883.3 0.05 101 8.5 31954 -42.3 -81.3 1 39.0 -52.1 122 22 902.6 902.7 329.5 903.3 0.06 102 8.3 32114 -43.3 -82.3 1 39.0 -52.7 127 22 904.9 904.9 329.5 905.4 0.05 103 7.2 33078 -39.5 -80.5 0 41.0 -51.7 154 22 958.0 958.1 330.5 959.0 0.09 104 7.0 33270 -41.1 -81.1 1 40.0 -52.5 160 22 959.1 959.2 330.5 960.0 0.08 105 6.9 33368 -41.9 -80.9 1 39.0 -52.9 959.8 959.8 330.5 960.7 0.08 106 5.9 34438 -37.7 -79.7 0 42.0 -52.0 1022.0 1022.0 331.5 1023.4 0.12 TRP 93 17002 -84.9 -90.9 33 6.0 -84.9 325 24 371.3 371.3 300.8 371.3 0.00 WND 25 24825 -58.2 -88.0 1 29.8 -59.5 90 66 617.3 617.3 321.4 617.3 0.01 Sounding variables and indices 1000-500 mb thick: 5789.00 m Freezing level: 563.00 mb = 4926.14 m = 16161.67 ft Wetbulb zero: 577.73 mb = 4717.44 m = 15476.99 ft Precipitable water: 2.09 inches Sfc-500 mean rel hum: 72.73 % Est. max temperature: 32.26 C = 90.07 F Sfc-Lift cond lev (LCL): 970.65 mb = 344.11 m = 1128.95 ft T: 25.17 C 700-500 lapse rate: 5.83 C/km ThetaE index: 13.70 C Layer 943.0- 867.0 mb Conv cond level (CCL): 885.05 mb = 1151.75 m = 3778.68 ft Mean mixing ratio: 17.04 g/kg Conv temperature: 31.40 C = 88.52 F Cap Strength: 1.53 C Lifted Index: -2.86 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.29 C Lifted Index @700 mb: -0.38 C Showalter Index: 1.24 C Risk: Showers probable Total Totals Index: 42.70 C Risk: None Vertical Totals Index: 23.50 C Cross Totals Index: 19.20 C K Index: 29.40 Risk: 40-60 % chance of thunderstorms Sweat Index: 216.80 Risk: None Energy Index: -0.90 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 701.76 J/kg Max Up Vert Vel: 37.46 m/s Conv Inhibition (B-): 19.67 J/kg Cap Strength: 1.53 C Lift Cond Lev (LCL): 918.57 mb = 828.84 m = 2719.25 ft Lev Free Conv (LFC): 833.57 mb = 1667.95 m = 5472.22 ft Equ Level (EL): 723.57 mb = 2865.70 m = 9401.79 ft B at Equ Level: 21.16 J/kg Max Parcel Lev (MPL): 93.57 mb = 16968.30 m = 55669.61 ft Wind level data Storm motion: 293 at 10 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 1009 3 280 2 2.0 -0.3 | 117 9 -7.6 3.8 1 1000 81 265 5 5.0 0.4 | 135 7 -4.6 4.6 2 942 610 235 13 10.6 7.5 | 185 12 1.0 11.6 3 925 768 235 13 10.6 7.5 | 185 12 1.0 11.6 4 910 914 235 16 13.1 9.2 | 195 14 3.5 13.3 5 878 1219 245 17 15.4 7.2 | 207 13 5.8 11.4 6 850 1501 255 16 15.5 4.1 | 215 10 5.9 8.3 7 818 1829 275 12 12.0 -1.0 | 217 4 2.4 3.1 8 789 2134 265 14 13.9 1.2 | 219 7 4.3 5.4 9 761 2438 235 15 12.3 8.6 | 192 13 2.7 12.8 10 700 3143 270 13 13.0 -0.0 | 219 5 3.4 4.2 11 682 3353 275 12 12.0 -1.0 | 217 4 2.4 3.1 12 633 3962 260 14 13.8 2.4 | 212 8 4.2 6.6 13 609 4267 270 13 13.0 -0.0 | 219 5 3.4 4.2 14 565 4877 290 14 13.2 -4.8 | 280 4 3.6 -0.6 15 544 5182 270 17 17.0 -0.0 | 241 8 7.4 4.2 16 505 5791 290 17 16.0 -5.8 | 284 7 6.4 -1.6 17 500 5870 280 18 17.7 -3.1 | 263 8 8.1 1.0 18 467 6401 275 22 21.9 -1.9 | 260 13 12.3 2.3 19 431 7010 295 24 21.8 -10.1 | 296 14 12.2 -6.0 20 415 7315 275 27 26.9 -2.4 | 264 17 17.3 1.8 21 400 7590 275 23 22.9 -2.0 | 261 13 13.3 2.2 22 367 8230 290 29 27.3 -9.9 | 288 19 17.7 -5.7 23 352 8534 275 34 33.9 -3.0 | 267 24 24.3 1.2 24 310 9449 300 25 21.7 -12.5 | 305 15 12.0 -8.3 25 300 9700 295 29 26.3 -12.3 | 296 19 16.7 -8.1 26 261 10668 275 29 28.9 -2.5 | 265 19 19.3 1.6 27 250 10980 300 16 13.9 -8.0 | 312 6 4.3 -3.8 28 239 11278 300 16 13.9 -8.0 | 312 6 4.3 -3.8 29 218 11887 325 19 10.9 -15.6 | 354 11 1.3 -11.4 30 200 12460 320 25 16.1 -19.2 | 337 16 6.5 -15.0 31 172 13411 305 31 25.4 -17.8 | 311 21 15.8 -13.6 32 164 13716 295 27 24.5 -11.4 | 296 17 14.9 -7.2 33 150 14260 325 23 13.2 -18.8 | 346 15 3.6 -14.7 34 148 14326 325 23 13.2 -18.8 | 346 15 3.6 -14.7 35 120 15545 300 23 19.9 -11.5 | 305 13 10.3 -7.3 36 114 15850 270 20 20.0 -0.0 | 248 11 10.4 4.2 37 100 16600 300 18 15.6 -9.0 | 309 8 6.0 -4.8 38 97 16764 300 18 15.6 -9.0 | 309 8 6.0 -4.8 39 93 17002 325 24 13.8 -19.7 | 345 16 4.2 -15.5 40 87 17374 325 24 13.8 -19.7 | 345 16 4.2 -15.5 41 82 17678 335 14 5.9 -12.7 | 23 9 -3.7 -8.5 42 78 17983 20 1 -0.3 -0.9 | 108 10 -9.9 3.2 43 74 18288 60 10 -8.7 -5.0 | 87 18 -18.3 -0.8 44 70 18593 15 18 -4.7 -17.4 | 47 19 -14.3 -13.2 45 70 18600 15 7 -1.8 -6.8 | 77 12 -11.4 -2.6 46 67 18898 10 10 -1.7 -9.8 | 63 13 -11.3 -5.7 47 63 19202 155 10 -4.2 9.1 | 134 19 -13.8 13.2 48 60 19507 115 10 -9.1 4.2 | 114 20 -18.7 8.4 49 57 19812 75 13 -12.6 -3.4 | 92 22 -22.2 0.8 50 54 20117 90 21 -21.0 0.0 | 98 31 -30.6 4.2 51 51 20422 65 25 -22.7 -10.6 | 79 33 -32.3 -6.4 52 50 20560 80 21 -20.7 -3.6 | 91 30 -30.3 0.5 53 49 20726 85 19 -18.9 -1.7 | 95 29 -28.5 2.5 54 46 21031 65 25 -22.7 -10.6 | 79 33 -32.3 -6.4 55 31 23470 110 52 -48.9 17.8 | 111 62 -58.5 22.0 56 30 23680 90 58 -58.0 0.0 | 94 68 -67.6 4.2 57 28 24079 90 58 -58.0 0.0 | 94 68 -67.6 4.2 58 27 24384 100 62 -61.1 10.8 | 102 72 -70.7 14.9 59 25 24825 90 66 -66.0 0.0 | 93 76 -75.6 4.2 60 23 25298 90 66 -66.0 0.0 | 93 76 -75.6 4.2 61 20 26250 85 51 -50.8 -4.4 | 90 60 -60.4 -0.3 62 17 27432 85 38 -37.9 -3.3 | 91 47 -47.5 0.9 63 15 28042 70 30 -28.2 -10.3 | 81 38 -37.8 -6.1 64 15 28346 80 24 -23.6 -4.2 | 90 33 -33.2 0.0 65 13 28956 125 33 -27.0 18.9 | 122 43 -36.6 23.1 66 12 29870 115 18 -16.3 7.6 | 114 28 -25.9 11.8 67 11 30175 110 20 -18.8 6.8 | 111 30 -28.4 11.0 68 10 30870 90 22 -22.0 0.0 | 98 32 -31.6 4.2 69 7 33270 160 22 -7.5 20.7 | 145 30 -17.1 24.8 Wind Parameters Mean winds (0-6000m): 263.5 at 14.0 knts Storm direction: 293.5 at 10.5 knts Shear (0-3000m) pos: 2.5 neg: 3.4 tot: 6.0 10-3/s Storm rel Dir Shear (0-3000m): 95.9 deg Storm rel helicity (0-3000m) pos: 48.2 neg: -10.6 tot: 37.6 m^2/s^2 ave: 12.5 10^-3 m/s^2 rel: 0.35 Storm rel vorticity (0-3000m) horiz: 7.4 stream: 2.5 10^-3/s Energy-Hel index: 0.18 Bulk Rich Number: 110.06 Bulk Shear: 6.38 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 ------------------------------------------------------------------------------- 500 250 7 159 7| 0.0 10.2 10.2| 15.4 0.0 15.4 30.7 0.79| 10.7 8.4 1000 240 11 178 10| 0.0 7.6 7.6| 26.9 0.0 26.9 26.9 0.72| 8.3 6.0 1500 243 13 189 10| 1.7 5.1 6.8| 38.9 0.0 38.9 25.9 0.72| 7.4 5.3 2000 249 13 195 9| 2.2 3.8 6.0| 40.3 -0.1 40.2 20.1 0.56| 7.3 4.1 2500 250 13 197 9| 1.8 4.1 5.9| 40.3 -10.6 29.7 11.9 0.32| 7.5 2.4 3000 250 13 198 9| 2.5 3.4 6.0| 48.2 -10.6 37.6 12.5 0.35| 7.4 2.5 4000 254 13 202 8| 2.1 2.9 5.1| 49.3 -11.5 37.9 9.5 0.31| 6.3 1.9 5000 259 13 207 8| 2.2 2.3 4.6| 55.0 -13.0 42.0 8.4 0.32| 5.9 1.9 6000 263 14 217 7| 1.9 2.2 4.0| 64.7 -21.5 43.2 7.2 0.27| 6.0 1.6 Wrote GIF file: /home/apache/climate/data/raob//NSTU/skewt/NSTU.skewt.20251218.12.gif