UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121800.upa.cvt Date: 0000Z 18 DEC 25 Searching for NSTU... Searching the city database file for: NSTU ... Date:0000Z 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 1007 3 31.4 25.4 71 6.0 26.9 265 11 303.9 307.8 299.8 365.7 20.69 1 1000 69 28.4 22.4 70 6.0 24.0 250 18 301.5 304.7 297.2 352.5 17.30 2 999 78 28.2 22.2 70 6.0 23.8 251 18 301.4 304.6 297.0 351.8 17.10 3 984 213 27.0 23.7 82 3.3 24.6 265 17 301.5 305.0 298.2 357.9 19.08 4 982 231 27.0 22.3 76 4.7 23.6 267 17 301.7 304.9 297.4 353.4 17.52 5 978 267 26.6 22.7 79 3.9 23.8 271 16 301.7 305.0 297.7 354.9 18.04 6 974 303 26.6 21.8 75 4.8 23.1 275 16 302.0 305.2 297.2 352.6 17.12 7 972 321 26.2 22.8 82 3.4 23.7 274 16 301.8 305.1 297.8 355.7 18.27 8 967 367 26.0 21.4 76 4.6 22.7 273 16 302.0 305.1 297.0 351.7 16.82 9 966 376 25.8 22.6 83 3.2 23.5 273 16 301.9 305.3 297.8 355.6 18.15 10 962 413 25.4 22.5 84 2.9 23.3 271 16 301.9 305.2 297.8 355.4 18.12 11 956 468 25.2 21.6 80 3.6 22.6 270 16 302.2 305.4 297.3 353.1 17.23 12 955 477 24.6 22.8 90 1.8 23.3 269 16 301.7 305.1 298.0 356.6 18.60 13 952 505 24.4 22.8 91 1.6 23.2 268 16 301.8 305.2 298.1 356.9 18.66 14 951 514 24.4 22.4 89 2.0 22.9 268 16 301.9 305.2 297.8 355.7 18.22 15 948 542 24.8 20.8 78 4.0 21.9 267 15 302.5 305.6 297.0 351.4 16.53 16 925 758 23.2 19.9 82 3.3 20.9 260 15 303.0 306.0 296.7 350.5 16.01 17 871 1280 19.0 17.4 90 1.6 17.9 247 16 303.9 306.6 296.0 347.1 14.51 18 856 1430 19.0 14.7 76 4.3 16.1 242 16 305.4 307.7 294.9 342.5 12.38 19 852 1471 19.6 13.6 68 6.0 15.6 241 16 306.5 308.6 294.6 341.3 11.57 20 850 1491 19.4 13.4 68 6.0 15.4 240 16 306.5 308.6 294.6 340.9 11.44 21 822 1779 17.2 12.4 73 4.8 14.1 245 18 307.1 309.2 294.4 340.5 11.08 22 805 1957 15.6 13.3 86 2.3 14.1 253 18 307.2 309.5 295.1 343.5 12.01 23 802 1989 15.4 13.3 87 2.1 14.0 254 18 307.3 309.6 295.2 343.7 12.06 24 785 2170 14.2 11.8 85 2.4 12.6 262 18 307.9 310.0 294.7 341.7 11.15 25 781 2213 14.4 10.1 75 4.3 11.7 264 18 308.6 310.5 294.1 339.0 9.99 26 773 2301 14.0 10.1 77 3.9 11.5 268 17 309.1 311.0 294.3 339.8 10.10 27 766 2377 13.8 7.8 67 6.0 10.1 272 16 309.7 311.3 293.4 336.3 8.70 28 760 2444 13.6 4.6 54 9.0 8.3 275 16 310.2 311.5 292.2 331.8 7.01 29 757 2477 13.4 4.4 54 9.0 8.2 275 16 310.3 311.6 292.2 331.7 6.94 30 751 2544 13.4 0.4 41 13.0 6.3 275 16 311.0 312.0 291.0 327.4 5.25 31 748 2578 13.0 5.0 58 8.0 8.3 275 16 310.9 312.3 292.7 333.6 7.33 32 725 2841 12.0 -2.0 38 14.0 4.7 275 15 312.6 313.5 290.9 327.0 4.56 33 722 2876 11.8 -1.2 40 13.0 4.9 275 15 312.8 313.7 291.2 328.1 4.85 34 711 3004 10.6 3.6 62 7.0 6.6 275 15 312.8 314.2 293.0 334.6 6.99 35 703 3098 9.6 7.9 89 1.7 8.5 275 15 312.7 314.6 294.8 342.3 9.56 36 700 3134 9.8 7.0 83 2.8 8.1 275 15 313.3 315.1 294.6 341.3 9.02 37 698 3158 9.6 7.0 84 2.6 8.0 275 15 313.4 315.1 294.7 341.4 9.05 38 695 3194 9.8 5.4 74 4.4 7.2 275 15 314.0 315.5 294.1 339.3 8.12 39 691 3242 9.6 6.0 78 3.6 7.4 275 15 314.3 315.9 294.5 340.8 8.52 40 689 3266 9.8 4.8 71 5.0 6.8 275 15 314.8 316.3 294.1 339.3 7.85 41 687 3290 9.6 5.0 73 4.6 6.9 275 15 314.8 316.3 294.3 339.8 7.99 42 679 3387 9.2 3.2 66 6.0 5.7 274 15 315.4 316.8 293.8 337.8 7.11 43 675 3436 8.8 1.8 61 7.0 4.9 273 16 315.5 316.7 293.3 335.9 6.47 44 670 3498 8.4 3.4 71 5.0 5.5 271 16 315.7 317.1 294.0 338.7 7.31 45 663 3584 7.8 -0.2 57 8.0 3.5 268 17 316.0 317.1 292.8 334.1 5.69 46 652 3722 7.0 1.0 66 6.0 3.7 268 18 316.6 317.8 293.5 336.7 6.32 47 645 3811 6.0 4.1 88 1.9 4.9 272 18 316.4 318.0 294.7 341.6 7.99 48 635 3939 5.8 -1.2 61 7.0 2.1 278 18 317.6 318.7 293.2 335.3 5.53 49 617 4174 4.0 2.0 87 2.0 2.8 290 18 318.2 319.6 294.6 341.0 7.19 50 612 4240 3.8 -0.7 72 4.5 1.4 293 18 318.7 319.9 293.7 337.8 5.95 51 607 4307 3.4 1.3 86 2.1 2.2 294 18 319.0 320.3 294.6 341.2 6.95 52 602 4374 3.0 -0.4 78 3.4 1.1 292 18 319.3 320.5 294.1 339.1 6.19 53 598 4428 2.6 1.4 92 1.2 1.9 290 19 319.4 320.8 294.8 342.1 7.10 54 500 5860 -3.9 -12.9 50 9.0 -7.7 270 23 328.3 328.9 293.8 338.0 2.83 55 400 7590 -15.1 -21.1 60 6.0 -17.0 270 23 335.4 335.7 294.7 341.7 1.78 56 300 9710 -28.7 -47.7 14 19.0 -30.8 285 21 344.9 345.0 295.7 345.6 0.17 57 250 10980 -39.1 -52.1 24 13.0 -40.0 270 16 347.9 348.0 296.3 348.5 0.12 58 200 12470 -52.7 -61.7 33 9.0 -52.9 290 12 349.3 349.3 296.5 349.5 0.05 59 150 14270 -67.3 -75.3 31 8.0 -67.4 285 21 354.2 354.2 297.5 354.2 0.01 60 100 16610 -82.5 -89.5 29 7.0 -82.5 265 17 368.3 368.3 300.2 368.3 0.00 61 96 16837 -83.5 -90.5 28 7.0 -83.5 295 18 370.7 370.7 300.7 370.7 0.00 62 94 16954 -82.7 -90.7 24 8.0 -82.7 298 18 374.5 374.5 301.4 374.5 0.00 63 88 17319 -84.1 -91.1 28 7.0 -84.1 296 17 378.8 378.8 302.1 378.8 0.00 64 78 17989 -82.3 -88.3 35 6.0 -82.3 276 12 395.9 395.9 304.6 395.9 0.00 65 74 18282 -83.7 -88.7 41 5.0 -83.7 226 12 398.9 398.9 305.0 398.9 0.00 66 71 18511 -83.7 -89.7 34 6.0 -83.7 99 16 403.7 403.7 305.7 403.7 0.00 67 70 18590 -81.5 -88.5 29 7.0 -81.5 55 18 410.0 410.0 306.5 410.0 0.00 68 65 19015 -74.9 -87.9 12 13.0 -75.0 39 18 433.2 433.2 309.2 433.2 0.00 69 60 19479 -76.3 -89.3 11 13.0 -76.3 67 12 440.1 440.1 309.9 440.1 0.00 70 55 19985 -74.3 -89.3 8 15.0 -74.4 70 15 455.8 455.8 311.4 455.8 0.00 71 52 20316 -70.1 -90.1 4 20.0 -70.2 82 21 473.0 473.0 312.9 473.0 0.00 72 50 20550 -69.1 -90.1 3 21.0 -69.3 85 26 480.7 480.7 313.5 480.7 0.00 73 47 20922 -67.3 -90.3 2 23.0 -67.5 85 24 493.5 493.6 314.5 493.6 0.00 74 45 21183 -68.7 -90.7 3 22.0 -68.9 88 25 496.3 496.3 314.7 496.3 0.00 75 41 21744 -65.9 -89.9 2 24.0 -66.2 86 22 516.7 516.7 316.1 516.7 0.00 76 40 21894 -66.1 -91.1 2 25.0 -66.4 88 24 519.9 519.9 316.3 519.9 0.00 77 39 22049 -61.3 -90.3 1 29.0 -61.9 90 27 535.8 535.8 317.3 535.8 0.00 78 35 22723 -59.9 -87.9 1 28.0 -60.7 89 36 556.3 556.3 318.5 556.3 0.00 79 30 23680 -62.7 -89.7 1 27.0 -63.4 80 38 573.7 573.7 319.3 573.7 0.00 80 27 24336 -62.1 -89.1 2 27.0 -62.9 83 45 592.9 592.9 320.3 593.0 0.01 81 22 25627 -56.4 -86.7 1 30.3 -58.2 90 60 645.7 645.7 322.5 645.8 0.01 82 21 25925 -55.1 -86.1 1 31.0 -57.2 89 60 658.3 658.3 323.0 658.3 0.01 83 20 26240 -53.1 -85.1 1 32.0 -55.8 80 54 673.6 673.6 323.6 673.7 0.01 84 19 26573 -51.1 -84.1 1 33.0 -54.4 81 53 689.8 689.8 324.1 689.9 0.02 85 18 26926 -51.7 -84.7 1 33.0 -54.9 82 52 698.7 698.7 324.4 698.8 0.02 86 13 29074 -45.1 -82.1 1 37.0 -51.7 84 30 789.7 789.7 327.0 790.0 0.04 87 12 29609 -45.9 -81.9 1 36.0 -52.5 83 20 805.1 805.1 327.4 805.5 0.04 88 11 30189 -45.7 -82.7 1 37.0 -52.7 82 15 826.1 826.1 327.8 826.5 0.04 89 10 30830 -42.3 -80.3 1 38.0 -51.3 125 31 861.6 861.7 328.7 862.3 0.06 90 9.0 31542 -42.7 -81.7 1 39.0 -52.0 886.5 886.5 329.2 887.0 0.06 91 8.4 32010 -40.7 -80.7 1 40.0 -51.4 912.0 912.0 329.7 912.7 0.07 TRP 96 16837 -83.5 -90.5 28 7.0 -83.5 295 18 370.7 370.7 300.7 370.7 0.00 WND 22 25627 -56.4 -86.7 1 30.3 -58.2 90 60 645.7 645.7 322.5 645.8 0.01 Sounding variables and indices 1000-500 mb thick: 5791.00 m Freezing level: 558.80 mb = 5000.71 m = 16406.32 ft Wetbulb zero: 578.56 mb = 4692.32 m = 15394.56 ft Precipitable water: 2.14 inches Sfc-500 mean rel hum: 72.78 % Est. max temperature: 32.79 C = 91.03 F Sfc-Lift cond lev (LCL): 923.92 mb = 768.10 m = 2519.99 ft T: 23.12 C 700-500 lapse rate: 5.03 C/km ThetaE index: 13.89 C Layer 1000.0- 984.0 mb Conv cond level (CCL): 888.40 mb = 1108.66 m = 3637.28 ft Mean mixing ratio: 17.18 g/kg Conv temperature: 31.09 C = 87.97 F Cap Strength: 1.01 C Lifted Index: -2.04 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.06 C Lifted Index @700 mb: -1.65 C Showalter Index: 2.53 C Risk: Showers probable Total Totals Index: 40.60 C Risk: None Vertical Totals Index: 23.30 C Cross Totals Index: 17.30 C K Index: 33.90 Risk: 60-80 % chance of thunderstorms Sweat Index: 303.30 Risk: Showers and thunderstorms possible Energy Index: -0.56 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 978.63 J/kg Max Up Vert Vel: 44.24 m/s Conv Inhibition (B-): 12.95 J/kg Cap Strength: 1.61 C Lift Cond Lev (LCL): 905.44 mb = 943.63 m = 3095.87 ft Lev Free Conv (LFC): 870.44 mb = 1286.02 m = 4219.19 ft Equ Level (EL): 860.44 mb = 1385.66 m = 4546.06 ft B at Equ Level: 8.81 J/kg Max Parcel Lev (MPL): 90.44 mb = 17167.66 m = 56323.66 ft Wind level data Storm motion: 299 at 13 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 1007 3 265 11 11.0 1.0 | 174 7 -0.7 7.4 1 1000 69 250 18 16.9 6.2 | 203 14 5.2 12.6 2 974 305 275 16 15.9 -1.4 | 220 7 4.3 5.0 3 925 758 260 15 14.8 2.6 | 199 10 3.1 9.0 4 908 914 260 15 14.8 2.6 | 199 10 3.1 9.0 5 850 1491 240 16 13.9 8.0 | 189 15 2.2 14.4 6 847 1524 235 18 14.7 10.3 | 190 17 3.1 16.7 7 788 2134 260 18 17.7 3.1 | 212 11 6.0 9.5 8 760 2438 275 16 15.9 -1.4 | 220 7 4.3 5.0 9 700 3134 275 15 14.9 -1.3 | 213 6 3.3 5.1 10 681 3353 275 15 14.9 -1.3 | 213 6 3.3 5.1 11 656 3658 265 18 17.9 1.6 | 218 10 6.2 8.0 12 609 4267 295 18 16.3 -7.6 | 284 5 4.6 -1.2 13 565 4877 275 21 20.9 -1.8 | 244 10 9.2 4.6 14 544 5182 280 19 18.7 -3.3 | 246 8 7.0 3.1 15 524 5486 265 23 22.9 2.0 | 233 14 11.2 8.4 16 500 5860 270 23 23.0 -0.0 | 240 13 11.3 6.4 17 448 6706 285 23 22.2 -6.0 | 267 11 10.5 0.5 18 400 7590 270 23 23.0 -0.0 | 240 13 11.3 6.4 19 398 7620 270 23 23.0 -0.0 | 240 13 11.3 6.4 20 338 8839 285 28 27.0 -7.2 | 273 15 15.4 -0.8 21 311 9449 290 26 24.4 -8.9 | 281 13 12.7 -2.5 22 300 9710 285 21 20.3 -5.4 | 263 9 8.6 1.0 23 261 10668 265 22 21.9 1.9 | 231 13 10.2 8.3 24 250 10980 270 16 16.0 -0.0 | 214 8 4.3 6.4 25 228 11582 285 13 12.6 -3.4 | 196 3 0.9 3.1 26 209 12192 275 9 9.0 -0.8 | 154 6 -2.7 5.6 27 200 12470 290 12 11.3 -4.1 | 170 2 -0.4 2.3 28 190 12802 285 14 13.5 -3.6 | 213 3 1.8 2.8 29 181 13106 260 14 13.8 2.4 | 193 9 2.1 8.8 30 164 13716 280 22 21.7 -3.8 | 255 10 10.0 2.6 31 150 14270 285 21 20.3 -5.4 | 263 9 8.6 1.0 32 149 14326 275 23 22.9 -2.0 | 249 12 11.2 4.4 33 134 14935 310 18 13.8 -11.6 | 338 6 2.1 -5.2 34 127 15240 310 19 14.6 -12.2 | 334 6 2.9 -5.8 35 120 15545 275 28 27.9 -2.4 | 256 17 16.2 4.0 36 114 15850 270 27 27.0 -0.0 | 247 17 15.3 6.4 37 103 16459 290 21 19.7 -7.2 | 275 8 8.1 -0.8 38 100 16610 265 17 16.9 1.5 | 214 9 5.3 7.9 39 97 16764 265 17 16.9 1.5 | 214 9 5.3 7.9 40 96 16837 295 18 16.3 -7.6 | 284 5 4.6 -1.2 41 92 17069 300 18 15.6 -9.0 | 303 5 3.9 -2.6 42 87 17374 295 17 15.4 -7.2 | 282 4 3.7 -0.8 43 82 17678 330 13 6.5 -11.3 | 47 7 -5.2 -4.8 44 74 18288 225 12 8.5 8.5 | 168 15 -3.2 14.9 45 70 18590 55 18 -14.7 -10.3 | 82 27 -26.4 -3.9 46 70 18593 205 14 5.9 12.7 | 163 20 -5.8 19.1 47 66 18898 45 22 -15.6 -15.6 | 71 29 -27.2 -9.1 48 63 19202 30 11 -5.5 -9.5 | 80 17 -17.2 -3.1 49 60 19507 70 12 -11.3 -4.1 | 96 23 -23.0 2.3 50 57 19812 55 11 -9.0 -6.3 | 90 21 -20.7 0.1 51 54 20117 80 17 -16.7 -3.0 | 97 29 -28.4 3.5 52 50 20550 85 26 -25.9 -2.3 | 96 38 -37.6 4.2 53 49 20726 95 19 -18.9 1.7 | 105 32 -30.6 8.1 54 46 21031 80 26 -25.6 -4.5 | 93 37 -37.3 1.9 55 44 21336 95 25 -24.9 2.2 | 103 38 -36.6 8.6 56 42 21641 85 20 -19.9 -1.7 | 98 32 -31.6 4.7 57 36 22555 95 34 -33.9 3.0 | 102 47 -45.6 9.4 58 33 23165 75 40 -38.6 -10.4 | 86 50 -50.3 -3.9 59 30 23680 80 38 -37.4 -6.6 | 90 49 -49.1 -0.2 60 22 25627 90 60 -60.0 0.0 | 95 72 -71.7 6.4 61 21 25908 90 60 -60.0 0.0 | 95 72 -71.7 6.4 62 20 26240 80 54 -53.2 -9.4 | 87 65 -64.9 -3.0 63 15 28042 85 50 -49.8 -4.4 | 92 62 -61.5 2.1 64 14 28651 90 40 -40.0 0.0 | 97 52 -51.7 6.4 65 13 28956 75 34 -32.8 -8.8 | 87 45 -44.5 -2.4 66 13 29261 95 25 -24.9 2.2 | 103 38 -36.6 8.6 67 12 29566 80 21 -20.7 -3.6 | 95 32 -32.4 2.8 68 12 29870 95 16 -15.9 1.4 | 106 29 -27.6 7.8 69 11 30175 80 14 -13.8 -2.4 | 99 26 -25.5 4.0 70 10 30830 125 31 -25.4 17.8 | 123 44 -37.1 24.2 Wind Parameters Mean winds (0-6000m): 268.8 at 17.8 knts Storm direction: 298.8 at 13.3 knts Shear (0-3000m) pos: 2.1 neg: 1.5 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 39.7 deg Storm rel helicity (0-3000m) pos: 42.7 neg: -13.6 tot: 29.1 m^2/s^2 ave: 9.7 10^-3 m/s^2 rel: 0.24 Storm rel vorticity (0-3000m) horiz: 6.5 stream: 1.6 10^-3/s Energy-Hel index: 0.22 Bulk Rich Number: 1984.73 Bulk Shear: 0.49 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 ------------------------------------------------------------------------------- 500 265 16 210 9| 4.8 0.0 4.8| 18.9 -2.5 16.3 32.7 0.41| 16.2 6.7 1000 264 16 205 9| 2.4 1.6 4.0| 18.9 -6.9 11.9 11.9 0.25| 9.7 2.4 1500 258 16 201 10| 1.6 2.9 4.5| 18.9 -12.5 6.3 4.2 0.12| 8.3 1.0 2000 254 16 200 11| 2.3 2.2 4.5| 36.3 -12.5 23.8 11.9 0.24| 7.9 1.9 2500 257 16 203 11| 2.6 1.7 4.3| 42.7 -12.5 30.1 12.1 0.26| 7.7 2.0 3000 260 16 205 10| 2.1 1.5 3.6| 42.7 -13.6 29.1 9.7 0.24| 6.5 1.6 4000 263 16 209 10| 2.1 1.3 3.3| 52.4 -13.8 38.6 9.6 0.29| 6.0 1.7 5000 268 17 217 9| 1.9 1.3 3.2| 57.7 -22.7 34.9 7.0 0.21| 6.0 1.3 6000 269 18 222 9| 1.8 1.5 3.3| 66.9 -29.4 37.5 6.2 0.19| 5.9 1.1 Wrote GIF file: /home/apache/climate/data/raob//NSTU/skewt/NSTU.skewt.20251218.00.gif