UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120812.upa.cvt Date: 1200Z 8 DEC 25 Searching for PAKN... Searching the city database file for: PAKN ... Date:1200Z 8 DEC 25 Station: PAKN WMO ident: 70326 Latitude: 58.68 Longitude: -156.65 Elevation: 15.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 -20 40 11 SFC 996 15 -19.1 -24.0 65 4.9 -19.7 40 11 254.3 254.4 253.7 255.8 0.55 2 983 112 -19.5 -23.8 69 4.3 -20.1 42 13 254.9 255.0 254.2 256.4 0.57 3 979 142 -19.5 -23.6 70 4.1 -20.0 42 13 255.2 255.3 254.5 256.8 0.58 4 976 164 -18.5 -21.9 75 3.4 -19.0 43 14 256.4 256.5 255.7 258.3 0.68 5 973 187 -17.5 -18.0 96 0.5 -17.6 43 14 257.7 257.8 257.3 260.2 0.95 6 971 203 -16.3 -16.3 100 0.0 -16.3 43 14 259.0 259.2 258.6 262.0 1.10 7 970 210 -15.5 -15.9 97 0.4 -15.6 43 14 259.9 260.1 259.5 263.0 1.14 8 968 226 -12.3 -14.9 81 2.6 -12.9 44 15 263.3 263.5 262.2 266.7 1.24 9 964 257 -11.7 -14.8 78 3.1 -12.4 44 15 264.2 264.4 262.9 267.6 1.26 10 961 281 -10.1 -14.6 70 4.5 -11.2 45 16 266.1 266.3 264.3 269.6 1.28 11 954 337 -9.1 -14.1 67 5.0 -10.3 51 16 267.6 267.8 265.6 271.3 1.34 12 947 393 -9.5 -14.4 67 4.9 -10.7 60 17 267.8 268.0 265.6 271.4 1.32 13 942 434 -8.5 -13.4 68 4.9 -9.8 67 17 269.2 269.4 266.8 273.2 1.44 14 931 524 -8.5 -13.3 68 4.8 -9.7 82 18 270.1 270.4 267.5 274.2 1.47 15 925 574 -7.7 -13.7 62 6.0 -9.2 90 19 271.4 271.7 268.3 275.5 1.43 16 924 582 -7.7 -13.7 62 6.0 -9.2 91 19 271.5 271.8 268.4 275.5 1.43 17 920 616 -7.7 -13.7 62 6.0 -9.2 95 20 271.9 272.1 268.6 275.9 1.44 18 909 710 -4.9 -15.9 42 11.0 -7.8 90 18 275.7 275.9 270.7 279.2 1.22 19 907 727 -4.9 -15.9 42 11.0 -7.8 89 17 275.8 276.0 270.8 279.4 1.22 20 889 885 -5.7 -15.7 45 10.0 -8.3 81 14 276.6 276.8 271.3 280.3 1.26 21 870 1054 -4.5 -15.5 42 11.0 -7.5 62 12 279.6 279.8 273.1 283.4 1.31 22 850 1237 -4.9 -16.9 38 12.0 -8.1 50 10 281.0 281.2 273.8 284.5 1.20 23 847 1265 -5.1 -17.1 38 12.0 -8.2 50 10 281.1 281.3 273.8 284.6 1.18 24 830 1424 -5.5 -23.5 23 18.0 -9.5 52 11 282.3 282.4 273.7 284.4 0.69 25 824 1481 -5.5 -19.5 32 14.0 -9.0 52 12 282.9 283.1 274.5 285.9 0.99 26 808 1634 -6.7 -17.7 41 11.0 -9.5 53 13 283.2 283.4 274.9 286.7 1.18 27 779 1918 -8.3 -24.3 26 16.0 -11.7 43 15 284.5 284.6 274.9 286.6 0.69 28 765 2058 -9.5 -24.5 28 15.0 -12.6 22 15 284.6 284.8 275.0 286.8 0.69 29 755 2160 -9.1 -26.1 24 17.0 -12.5 10 16 286.1 286.3 275.6 288.0 0.60 30 729 2430 -11.7 -26.7 28 15.0 -14.6 10 22 286.2 286.3 275.6 288.0 0.59 31 713 2599 -12.9 -23.9 39 11.0 -15.2 5 23 286.7 286.8 276.2 289.1 0.78 32 705 2685 -13.5 -24.5 39 11.0 -15.7 2 23 287.0 287.1 276.3 289.3 0.74 33 700 2739 -13.9 -27.9 30 14.0 -16.4 360 23 287.1 287.2 276.0 288.8 0.55 34 699 2750 -13.9 -28.9 27 15.0 -16.5 0 23 287.2 287.3 276.0 288.8 0.50 35 676 3003 -15.3 -33.3 20 18.0 -18.0 4 21 288.4 288.5 276.4 289.5 0.34 36 542 4626 -28.3 -41.3 28 13.0 -29.4 6 14 291.7 291.8 277.8 292.4 0.19 37 529 4800 -29.5 -43.5 25 14.0 -30.6 9 17 292.3 292.3 278.0 292.8 0.15 38 525 4854 -29.7 -47.7 16 18.0 -30.9 9 17 292.7 292.7 278.2 293.1 0.10 39 512 5032 -30.9 -53.9 9 23.0 -32.1 20 19 293.4 293.4 278.4 293.5 0.05 40 511 5046 -30.5 -55.5 7 25.0 -31.8 21 20 294.0 294.0 278.7 294.2 0.04 41 500 5200 -31.3 -56.3 7 25.0 -32.5 30 32 294.9 294.9 279.1 295.0 0.04 42 495 5271 -31.7 -58.7 5 27.0 -32.9 30 33 295.2 295.2 279.3 295.3 0.03 43 486 5401 -32.5 -49.5 17 17.0 -33.5 30 35 295.8 295.8 279.6 296.1 0.09 44 466 5696 -35.1 -49.1 23 14.0 -35.8 30 36 296.1 296.2 279.8 296.5 0.09 45 441 6078 -38.1 -50.1 27 12.0 -38.7 30 35 297.1 297.1 280.2 297.4 0.09 46 431 6236 -38.9 -55.9 15 17.0 -39.5 31 37 298.0 298.0 280.5 298.2 0.05 47 429 6268 -38.5 -57.5 12 19.0 -39.2 31 37 298.9 298.9 280.9 299.0 0.04 48 421 6398 -37.7 -57.7 11 20.0 -38.5 32 39 301.5 301.6 282.0 301.7 0.04 49 413 6530 -38.1 -59.1 9 21.0 -38.9 33 41 302.7 302.7 282.5 302.8 0.03 50 400 6750 -39.1 -61.1 8 22.0 -39.8 35 44 304.2 304.2 283.1 304.3 0.03 51 386 6994 -39.7 -64.7 5 25.0 -40.4 35 48 306.5 306.5 284.0 306.6 0.02 52 379 7119 -39.1 -66.1 4 27.0 -39.9 35 50 308.9 308.9 284.9 309.0 0.01 53 358 7507 -41.3 -67.3 4 26.0 -42.0 41 50 311.0 311.0 285.7 311.1 0.01 54 342 7817 -41.9 -67.9 4 26.0 -42.6 42 44 314.3 314.3 286.9 314.4 0.01 55 341 7836 -41.9 -66.9 5 25.0 -42.6 42 43 314.6 314.6 286.9 314.6 0.01 56 309 8495 -47.7 -68.7 7 21.0 -48.1 40 50 315.4 315.4 287.2 315.5 0.01 57 300 8690 -46.7 -69.7 6 23.0 -47.1 40 49 319.5 319.5 288.6 319.6 0.01 58 250 9900 -44.1 -76.1 2 32.0 -44.8 20 33 340.5 340.5 294.4 340.5 0.00 59 200 11400 -45.3 -79.3 1 34.0 -46.1 345 19 361.0 361.0 298.9 361.1 0.00 60 150 13320 -46.5 -80.5 1 34.0 -47.4 295 13 389.9 389.9 303.8 390.0 0.00 61 100 16010 -47.9 -81.9 1 34.0 -49.1 255 17 435.2 435.2 309.4 435.2 0.00 62 89 16773 -50.5 -83.5 1 33.0 -51.5 286 29 444.7 444.7 310.4 444.8 0.00 63 85 17073 -49.9 -83.9 1 34.0 -51.0 300 23 451.8 451.8 311.0 451.9 0.00 64 82 17310 -45.9 -81.9 1 36.0 -47.6 302 23 464.7 464.7 312.2 464.7 0.01 65 70 18360 -46.7 -82.7 1 36.0 -48.5 280 17 484.5 484.5 313.8 484.5 0.01 66 68 18552 -47.3 -82.3 1 35.0 -49.0 291 16 487.2 487.2 314.0 487.3 0.01 67 65 18852 -46.3 -82.3 1 36.0 -48.3 307 13 495.7 495.7 314.7 495.8 0.01 68 55 19955 -49.7 -83.7 1 34.0 -51.3 221 6 512.2 512.2 315.8 512.2 0.01 69 50 20580 -49.1 -84.1 1 35.0 -51.0 305 21 527.8 527.8 316.8 527.8 0.01 70 49 20712 -48.9 -83.9 1 35.0 -50.8 305 21 531.3 531.3 317.0 531.3 0.01 71 47 20988 -45.5 -82.5 1 37.0 -48.2 312 23 545.8 545.8 317.9 545.9 0.01 72 37 22576 -46.7 -82.7 1 36.0 -49.7 332 21 581.4 581.4 319.8 581.5 0.01 73 32 23541 -45.1 -82.1 1 37.0 -48.8 319 18 610.3 610.3 321.1 610.4 0.01 74 30 23970 -47.1 -83.1 1 36.0 -50.4 305 25 616.2 616.2 321.3 616.3 0.01 75 29 24195 -46.7 -82.7 1 36.0 -50.2 302 22 623.3 623.3 321.6 623.4 0.01 76 26 24918 -48.1 -84.1 1 36.0 -51.5 331 23 639.1 639.1 322.3 639.2 0.01 77 25 25177 -47.3 -83.3 1 36.0 -51.0 335 26 648.6 648.7 322.6 648.8 0.02 78 22 26017 -50.5 -84.5 1 34.0 -53.6 358 22 663.3 663.3 323.2 663.4 0.01 79 20 26640 -50.1 -84.1 1 34.0 -53.5 350 33 682.8 682.8 323.9 682.9 0.02 80 19 26975 -50.9 -84.9 1 34.0 -54.2 350 33 690.4 690.4 324.1 690.5 0.02 81 19 26975 -50.9 -84.9 1 34.0 -54.2 350 33 690.4 690.4 324.1 690.5 0.02 82 16 28093 -50.9 -84.9 1 34.0 -54.6 350 35 725.2 725.2 325.2 725.4 0.02 83 15 28516 -48.3 -84.3 1 36.0 -53.1 350 35 747.4 747.4 325.8 747.5 0.02 84 11 30540 -52.3 -85.3 1 33.0 -56.6 332 25 802.2 802.2 327.3 802.4 0.02 85 11 30540 -51.9 -85.9 1 34.0 -56.4 332 25 803.6 803.6 327.3 803.8 0.02 TRP 309 8495 -47.7 -68.7 7 21.0 -48.1 40 50 315.4 315.4 287.2 315.5 0.01 WND Sounding variables and indices 1000-500 mb thick: 5220.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 32.60 % Est. max temperature: 7.69 C = 45.83 F Sfc-Lift cond lev (LCL): 918.76 mb = 626.63 m = 2055.86 ft T: -7.39 C 700-500 lapse rate: 7.07 C/km ThetaE index: 0.46 C Layer 700.0- 676.0 mb Conv cond level (CCL): 996.00 mb = 15.00 m = 49.21 ft Mean mixing ratio: 1.17 g/kg Conv temperature: -15.29 C = 4.49 F Cap Strength: 20.05 C Lifted Index: 20.59 C Risk: None Lifted Index @300 mb: 35.14 C Lifted Index @700 mb: 16.61 C Showalter Index: 9.05 C Risk: None Total Totals Index: 40.80 C Risk: None Vertical Totals Index: 26.40 C Cross Totals Index: 14.40 C K Index: -4.50 Risk: None Sweat Index: 52.00 Risk: None Energy Index: 2.22 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 91.39 J/kg Max Up Vert Vel: 13.52 m/s Conv Inhibition (B-): 70835.94 J/kg Cap Strength: 20.15 C Lift Cond Lev (LCL): 868.76 mb = 1065.36 m = 3495.23 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 57 at 14 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 ---------------------------------------------------------- 0 996 15 40 11 -7.1 -8.4 | 276 5 4.9 -0.5 1 959 305 45 16 -11.3 -11.3 | 349 3 0.6 -3.4 2 925 574 90 19 -19.0 0.0 | 138 11 -7.0 7.9 3 921 610 95 20 -19.9 1.7 | 140 13 -8.0 9.6 4 886 914 80 13 -12.8 -2.3 | 171 6 -0.8 5.6 5 852 1219 40 10 -6.4 -7.7 | 268 6 5.5 0.2 6 850 1237 50 10 -7.7 -6.4 | 251 5 4.3 1.5 7 787 1829 55 14 -11.5 -8.0 | 286 1 0.5 -0.1 8 757 2134 10 16 -2.8 -15.8 | 311 12 9.2 -7.9 9 728 2438 10 22 -3.8 -21.7 | 329 16 8.1 -13.8 10 700 2739 360 23 -0.0 -23.0 | 322 19 12.0 -15.1 11 700 2743 360 23 -0.0 -23.0 | 322 19 12.0 -15.1 12 617 3658 15 17 -4.4 -16.4 | 318 11 7.6 -8.5 13 568 4267 10 12 -2.1 -11.8 | 292 11 9.9 -3.9 14 545 4572 5 13 -1.1 -13.0 | 295 12 10.8 -5.1 15 523 4877 10 18 -3.1 -17.7 | 318 13 8.8 -9.8 16 501 5182 30 21 -10.5 -18.2 | 352 10 1.5 -10.3 17 500 5200 30 32 -16.0 -27.7 | 12 20 -4.0 -19.8 18 480 5486 30 37 -18.5 -32.0 | 15 25 -6.5 -24.2 19 439 6096 30 35 -17.5 -30.3 | 14 23 -5.5 -22.4 20 400 6750 35 44 -25.2 -36.0 | 25 31 -13.3 -28.1 21 368 7315 35 53 -30.4 -43.4 | 27 40 -18.4 -35.5 22 352 7620 45 48 -33.9 -33.9 | 40 34 -22.0 -26.0 23 336 7925 40 41 -26.4 -31.4 | 31 28 -14.4 -23.5 24 309 8495 40 50 -32.1 -38.3 | 34 36 -20.2 -30.4 25 300 8690 40 49 -31.5 -37.5 | 33 36 -19.5 -29.6 26 293 8839 40 49 -31.5 -37.5 | 33 36 -19.5 -29.6 27 280 9144 40 39 -25.1 -29.9 | 31 26 -13.1 -22.0 28 250 9900 20 33 -11.3 -31.0 | 358 23 0.7 -23.1 29 244 10058 20 28 -9.6 -26.3 | 353 19 2.4 -18.4 30 233 10363 15 37 -9.6 -35.7 | 355 28 2.4 -27.8 31 223 10668 10 31 -5.4 -30.5 | 344 24 6.6 -22.6 32 213 10973 35 15 -8.6 -12.3 | 323 6 3.4 -4.4 33 204 11278 35 10 -5.7 -8.2 | 273 6 6.2 -0.3 34 200 11400 345 19 4.9 -18.4 | 302 20 16.9 -10.5 35 195 11582 350 15 2.6 -14.8 | 295 16 14.6 -6.9 36 186 11887 340 21 7.2 -19.7 | 302 23 19.1 -11.8 37 170 12497 320 17 10.9 -13.0 | 283 23 22.9 -5.1 38 162 12802 340 10 3.4 -9.4 | 276 15 15.4 -1.5 39 155 13106 315 4 2.8 -2.8 | 251 16 14.8 5.1 40 150 13320 295 13 11.8 -5.5 | 264 24 23.7 2.4 41 148 13411 295 14 12.7 -5.9 | 265 25 24.6 2.0 42 141 13716 290 21 19.7 -7.2 | 269 32 31.7 0.7 43 135 14021 310 20 15.3 -12.9 | 280 28 27.3 -5.0 44 123 14630 310 13 10.0 -8.4 | 271 22 21.9 -0.5 45 118 14935 330 17 8.5 -14.7 | 288 22 20.5 -6.8 46 112 15240 275 17 16.9 -1.5 | 257 30 28.9 6.4 47 107 15545 285 25 24.1 -6.5 | 268 36 36.1 1.4 48 100 16010 255 17 16.4 4.4 | 247 31 28.4 12.3 49 98 16154 280 20 19.7 -3.5 | 262 32 31.7 4.4 50 93 16459 250 19 17.9 6.5 | 244 33 29.8 14.4 51 89 16764 285 29 28.0 -7.5 | 269 40 40.0 0.4 52 85 17069 300 23 19.9 -11.5 | 276 32 31.9 -3.6 53 78 17678 305 23 18.8 -13.2 | 280 31 30.8 -5.3 54 74 17983 250 10 9.4 3.4 | 242 24 21.4 11.3 55 71 18288 225 17 12.0 12.0 | 230 31 24.0 19.9 56 70 18360 280 17 16.7 -3.0 | 260 29 28.7 4.9 57 65 18898 310 13 10.0 -8.4 | 271 22 21.9 -0.5 58 62 19202 290 14 13.2 -4.8 | 263 25 25.1 3.1 59 59 19507 300 10 8.7 -5.0 | 262 21 20.6 2.9 60 56 19812 255 11 10.6 2.8 | 245 25 22.6 10.7 61 54 20117 180 1 0.0 1.0 | 233 15 12.0 8.9 62 51 20422 255 10 9.7 2.6 | 244 24 21.6 10.5 63 50 20580 305 21 17.2 -12.0 | 278 29 29.2 -4.2 64 49 20726 305 21 17.2 -12.0 | 278 29 29.2 -4.2 65 45 21336 320 26 16.7 -19.9 | 293 31 28.7 -12.0 66 43 21641 310 20 15.3 -12.9 | 280 28 27.3 -5.0 67 41 21946 335 13 5.5 -11.8 | 283 18 17.5 -3.9 68 37 22555 335 22 9.3 -19.9 | 300 24 21.3 -12.0 69 35 22860 300 14 12.1 -7.0 | 268 24 24.1 0.9 70 31 23774 325 20 11.5 -16.4 | 290 25 23.4 -8.5 71 30 23970 305 25 20.5 -14.3 | 281 33 32.4 -6.4 72 30 24079 300 19 16.5 -9.5 | 273 28 28.4 -1.6 73 28 24384 305 26 21.3 -14.9 | 282 34 33.3 -7.0 74 26 24994 335 23 9.7 -20.8 | 301 25 21.7 -13.0 75 23 25603 335 34 14.4 -30.8 | 311 35 26.3 -22.9 76 22 25908 360 24 -0.0 -24.0 | 323 20 12.0 -16.1 77 21 26213 355 18 1.6 -17.9 | 307 17 13.5 -10.0 78 20 26518 340 30 10.3 -28.2 | 312 30 22.2 -20.3 79 20 26640 350 33 5.7 -32.5 | 324 30 17.7 -24.6 80 14 27432 350 36 6.3 -35.5 | 327 33 18.2 -27.6 81 11 28042 330 24 12.0 -20.8 | 298 27 24.0 -12.9 82 9 28346 345 18 4.7 -17.4 | 300 19 16.6 -9.5 83 5 29870 355 23 2.0 -22.9 | 317 21 14.0 -15.0 Wind Parameters Mean winds (0-6000m): 26.6 at 19.1 knts Storm direction: 56.6 at 14.3 knts Shear (0-3000m) pos: 2.1 neg: 4.2 tot: 6.3 10-3/s Storm rel Dir Shear (0-3000m): 45.9 deg Storm rel helicity (0-3000m) pos: 46.9 neg: -14.1 tot: 32.8 m^2/s^2 ave: 10.9 10^-3 m/s^2 rel: 0.42 Storm rel vorticity (0-3000m) horiz: 11.5 stream: 4.9 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 9.19 Bulk Shear: 9.95 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 53 15 0 1| 12.6 0.0 12.6| 11.6 0.0 11.6 23.1 0.85| 17.0 14.4 1000 70 16 134 4| 6.3 3.7 10.0| 27.6 0.0 27.6 27.6 0.68| 16.9 11.5 1500 66 14 158 2| 4.2 3.3 7.5| 31.8 -1.5 30.3 20.2 0.62| 14.3 8.9 2000 62 14 167 1| 3.1 3.9 7.0| 32.4 -2.0 30.3 15.2 0.54| 13.1 7.1 2500 49 15 339 2| 2.5 5.0 7.5| 46.4 -5.8 40.6 16.2 0.48| 12.8 6.2 3000 38 16 337 5| 2.1 4.2 6.3| 46.9 -14.1 32.8 10.9 0.42| 11.5 4.9 4000 29 17 329 8| 2.1 2.9 5.0| 46.9 -25.7 21.2 5.3 0.32| 9.7 3.2 5000 25 16 323 8| 1.9 2.4 4.3| 74.5 -31.3 43.2 8.6 0.36| 9.0 3.2 6000 27 19 340 10| 2.8 2.0 4.7|117.5 -34.1 83.4 13.9 0.39| 9.3 3.6 Wrote GIF file: /home/apache/climate/data/raob//PAKN/skewt/PAKN.skewt.20251208.12.gif