UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for PAKN... Searching the city database file for: PAKN ... Date:1200Z 4 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 ------------------------------------------------------------------------------- SFC 1009 15 4.0 2.8 92 1.2 3.4 65 3 276.4 277.2 276.2 289.0 4.63 1 1003 58 6.4 1.4 70 5.0 4.1 85 8 279.3 280.0 277.2 291.0 4.22 2 1000 79 6.2 1.3 71 4.9 4.0 95 11 279.4 280.1 277.2 291.0 4.20 3 982 228 6.0 1.3 72 4.7 3.8 105 12 280.6 281.3 277.9 292.5 4.28 4 961 405 4.6 1.1 78 3.5 3.0 110 13 280.9 281.7 278.1 292.9 4.31 5 955 456 4.8 0.8 75 4.0 3.0 110 13 281.6 282.4 278.4 293.5 4.24 6 925 715 2.4 0.0 84 2.4 1.4 100 14 281.8 282.5 278.3 293.3 4.13 7 884 1080 -0.3 -0.4 99 0.1 -0.3 118 18 282.6 283.4 278.8 294.4 4.20 8 883 1089 -0.3 -0.3 100 0.0 -0.3 119 18 282.7 283.5 278.9 294.6 4.23 9 850 1393 -2.1 -2.1 100 0.0 -2.1 140 24 283.9 284.6 279.0 294.8 3.85 10 739 2493 -8.1 -8.4 98 0.3 -8.2 147 18 289.0 289.5 280.0 297.0 2.74 11 700 2912 -10.9 -11.7 94 0.8 -11.2 145 13 290.4 290.8 280.0 297.0 2.23 12 644 3546 -15.5 -16.6 91 1.1 -15.8 133 17 292.2 292.5 280.1 297.1 1.62 13 642 3569 -15.9 -17.9 85 2.0 -16.4 133 18 292.0 292.3 279.8 296.5 1.46 14 555 4648 -23.9 -25.2 89 1.3 -24.1 178 20 295.0 295.1 280.4 297.8 0.89 15 540 4847 -25.5 -27.7 82 2.2 -25.8 172 21 295.4 295.5 280.3 297.7 0.73 16 504 5343 -28.9 -31.3 80 2.4 -29.2 193 19 297.1 297.2 280.8 298.9 0.55 17 500 5400 -29.3 -31.4 82 2.1 -29.6 190 19 297.3 297.4 281.0 299.1 0.55 18 475 5765 -31.7 -33.8 82 2.1 -31.9 184 27 298.7 298.8 281.4 300.3 0.46 19 457 6037 -33.3 -34.2 92 0.9 -33.4 162 19 300.1 300.1 282.0 301.6 0.46 20 448 6176 -34.3 -36.1 84 1.8 -34.5 163 17 300.5 300.6 282.1 301.8 0.39 21 440 6302 -35.1 -36.3 89 1.2 -35.2 178 18 301.1 301.1 282.3 302.4 0.39 22 434 6398 -35.9 -38.2 79 2.3 -36.1 189 18 301.2 301.3 282.3 302.3 0.33 23 428 6494 -36.7 -38.5 83 1.8 -36.8 193 21 301.4 301.5 282.4 302.5 0.32 24 426 6527 -36.9 -39.7 75 2.8 -37.1 194 22 301.6 301.6 282.4 302.5 0.28 25 418 6658 -37.7 -41.2 70 3.5 -37.9 198 27 302.2 302.2 282.6 303.0 0.25 26 400 6960 -39.3 -42.9 69 3.6 -39.5 205 18 303.9 304.0 283.2 304.7 0.22 27 398 6994 -39.7 -43.3 68 3.6 -39.9 195 21 303.8 303.9 283.2 304.6 0.21 28 395 7046 -40.1 -44.1 65 4.0 -40.4 189 23 304.0 304.0 283.2 304.6 0.19 29 372 7452 -43.5 -47.5 65 4.0 -43.7 184 24 304.7 304.7 283.5 305.2 0.14 30 344 7972 -47.9 -50.0 79 2.1 -48.0 185 22 305.6 305.7 283.8 306.1 0.11 31 340 8050 -47.5 -48.6 88 1.1 -47.6 193 22 307.2 307.2 284.4 307.7 0.14 32 331 8226 -48.3 -50.0 82 1.7 -48.4 210 23 308.5 308.5 284.9 308.9 0.12 33 321 8429 -47.1 -58.1 27 11.0 -47.4 212 30 312.9 312.9 286.4 313.0 0.05 34 315 8554 -45.5 -64.5 10 19.0 -46.0 213 35 316.8 316.8 287.7 316.9 0.02 35 309 8682 -44.5 -66.5 7 22.0 -45.0 214 39 319.9 319.9 288.7 320.0 0.02 36 308 8704 -44.3 -66.3 7 22.0 -44.9 214 40 320.5 320.5 288.9 320.6 0.02 37 303 8814 -44.7 -60.7 15 16.0 -45.2 215 44 321.4 321.4 289.2 321.6 0.04 38 300 8880 -44.9 -61.9 13 17.0 -45.4 210 41 322.1 322.1 289.4 322.2 0.03 39 264 9731 -48.9 -67.9 9 19.0 -49.3 209 33 328.2 328.2 291.2 328.3 0.02 40 250 10090 -49.5 -70.5 7 21.0 -49.9 210 33 332.5 332.5 292.4 332.5 0.01 41 249 10116 -49.5 -70.5 7 21.0 -49.9 212 32 332.9 332.9 292.5 332.9 0.01 42 235 10495 -47.9 -73.9 3 26.0 -48.4 227 26 340.8 340.8 294.5 340.9 0.01 43 221 10897 -50.1 -75.1 4 25.0 -50.5 217 29 343.5 343.5 295.1 343.5 0.01 44 209 11262 -48.5 -75.5 3 27.0 -49.0 225 36 351.5 351.5 297.0 351.5 0.01 45 200 11550 -49.7 -76.7 3 27.0 -50.2 235 42 354.1 354.1 297.5 354.1 0.01 46 198 11616 -49.9 -76.9 3 27.0 -50.4 230 45 354.8 354.8 297.7 354.8 0.01 47 194 11750 -48.3 -77.3 2 29.0 -48.9 231 46 359.4 359.4 298.6 359.4 0.01 48 186 12026 -49.3 -77.3 2 28.0 -49.8 232 47 362.1 362.1 299.1 362.2 0.01 49 178 12315 -47.7 -76.7 2 29.0 -48.4 234 49 369.3 369.3 300.5 369.4 0.01 50 150 13440 -49.7 -78.7 2 29.0 -50.4 240 50 384.4 384.4 302.9 384.5 0.01 51 149 13484 -49.9 -78.9 2 29.0 -50.5 240 49 384.8 384.8 303.0 384.8 0.01 52 140 13893 -48.3 -78.3 2 30.0 -49.1 244 41 394.5 394.5 304.5 394.6 0.01 53 127 14532 -50.3 -80.3 2 30.0 -51.0 245 42 402.1 402.1 305.5 402.1 0.00 54 100 16100 -48.3 -81.3 1 33.0 -49.4 235 53 434.4 434.4 309.3 434.4 0.01 55 97 16300 -49.1 -82.1 1 33.0 -50.1 235 53 436.6 436.6 309.6 436.7 0.00 56 80 17567 -48.1 -82.1 1 34.0 -49.5 240 50 463.4 463.4 312.1 463.5 0.01 57 78 17734 -46.5 -81.5 1 35.0 -48.1 236 52 470.1 470.1 312.7 470.2 0.01 58 73 18173 -47.5 -82.5 1 35.0 -49.1 245 64 477.1 477.1 313.2 477.1 0.01 59 70 18450 -48.1 -83.1 1 35.0 -49.7 255 61 481.5 481.5 313.5 481.5 0.01 60 68 18641 -48.7 -82.7 1 34.0 -50.2 257 60 484.2 484.2 313.8 484.2 0.01 61 61 19358 -47.5 -83.5 1 36.0 -49.3 242 45 502.1 502.1 315.1 502.2 0.01 62 58 19694 -44.5 -81.5 1 37.0 -47.0 237 47 516.2 516.2 316.1 516.3 0.01 63 53 20294 -47.5 -83.5 1 36.0 -49.6 236 52 522.7 522.8 316.5 522.8 0.01 64 50 20680 -46.9 -82.9 1 36.0 -49.2 245 42 532.9 532.9 317.1 533.0 0.01 65 47 21091 -46.3 -83.3 1 37.0 -48.8 241 40 543.9 543.9 317.8 543.9 0.01 66 43 21686 -42.9 -81.9 1 39.0 -46.5 244 43 566.3 566.3 319.0 566.3 0.01 67 37 22701 -42.1 -81.1 1 39.0 -46.4 241 41 593.2 593.2 320.3 593.3 0.02 68 33 23475 -42.5 -81.5 1 39.0 -47.0 238 40 611.9 611.9 321.2 612.0 0.02 TRP 344 7972 -47.9 -50.0 79 2.1 -48.0 185 22 305.6 305.7 283.8 306.1 0.11 WND 73 18173 -47.5 -82.5 1 35.0 -49.1 245 64 477.1 477.1 313.2 477.1 0.01 Sounding variables and indices 1000-500 mb thick: 5321.00 m Freezing level: 888.56 mb = 1039.36 m = 3409.93 ft Wetbulb zero: 892.01 mb = 1007.34 m = 3304.88 ft Precipitable water: 0.57 inches Sfc-500 mean rel hum: 89.61 % Est. max temperature: 11.19 C = 52.14 F Sfc-Lift cond lev (LCL): 990.40 mb = 158.10 m = 518.69 ft T: 6.09 C 700-500 lapse rate: 7.40 C/km ThetaE index: 0.16 C Layer 925.0- 884.0 mb Conv cond level (CCL): 882.23 mb = 1095.97 m = 3595.64 ft Mean mixing ratio: 4.23 g/kg Conv temperature: 10.34 C = 50.60 F Cap Strength: 4.83 C Lifted Index: 4.90 C Risk: None Lifted Index @300 mb: 20.88 C Lifted Index @700 mb: 2.97 C Showalter Index: 3.32 C Risk: None Total Totals Index: 54.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.20 C Cross Totals Index: 27.20 C K Index: 24.30 Risk: 20-40 % chance of thunderstorms Sweat Index: 175.00 Risk: None Energy Index: 0.84 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 11.83 J/kg Max Up Vert Vel: 4.86 m/s Conv Inhibition (B-): 42207.18 J/kg Cap Strength: 4.75 C Lift Cond Lev (LCL): 906.77 mb = 875.24 m = 2871.49 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 181 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 1009 15 65 3 -2.7 -1.3 | 11 16 -3.0 -15.2 1 1000 79 95 11 -11.0 1.0 | 41 17 -11.3 -13.0 2 973 305 110 12 -11.3 4.1 | 50 15 -11.6 -9.8 3 937 610 110 14 -13.2 4.8 | 56 16 -13.4 -9.2 4 925 715 100 14 -13.8 2.4 | 51 18 -14.1 -11.5 5 902 914 105 16 -15.5 4.1 | 58 19 -15.7 -9.8 6 869 1219 130 20 -15.3 12.9 | 86 16 -15.6 -1.1 7 850 1393 140 24 -15.4 18.4 | 106 16 -15.7 4.4 8 836 1524 140 24 -15.4 18.4 | 106 16 -15.7 4.4 9 804 1829 145 22 -12.6 18.0 | 108 14 -12.9 4.1 10 773 2134 140 21 -13.5 16.1 | 99 14 -13.8 2.1 11 744 2438 145 19 -10.9 15.6 | 98 11 -11.2 1.6 12 715 2743 155 15 -6.3 13.6 | 87 7 -6.6 -0.4 13 700 2912 145 13 -7.5 10.6 | 67 8 -7.8 -3.3 14 659 3353 130 14 -10.7 9.0 | 66 12 -11.0 -4.9 15 633 3658 135 20 -14.1 14.1 | 91 14 -14.4 0.2 16 583 4267 165 20 -5.2 19.3 | 134 8 -5.5 5.4 17 559 4572 180 20 0.0 20.0 | 177 6 -0.3 6.1 18 537 4877 170 21 -3.6 20.7 | 150 8 -3.9 6.7 19 515 5182 200 19 6.5 17.9 | 238 7 6.2 3.9 20 500 5400 190 19 3.3 18.7 | 212 6 3.0 4.8 21 494 5486 180 19 0.0 19.0 | 177 5 -0.3 5.1 22 473 5791 185 28 2.4 27.9 | 189 14 2.1 13.9 23 453 6096 155 17 -7.2 15.4 | 101 8 -7.5 1.5 24 433 6401 190 18 3.1 17.7 | 217 5 2.8 3.8 25 415 6706 200 29 9.9 27.3 | 216 16 9.6 13.3 26 400 6960 205 18 7.6 16.3 | 252 8 7.3 2.4 27 397 7010 190 23 4.0 22.7 | 203 9 3.7 8.7 28 379 7315 180 25 0.0 25.0 | 178 11 -0.3 11.1 29 363 7620 190 23 4.0 22.7 | 203 9 3.7 8.7 30 346 7925 180 20 0.0 20.0 | 177 6 -0.3 6.1 31 344 7972 185 22 1.9 21.9 | 192 8 1.6 8.0 32 331 8230 210 23 11.5 19.9 | 242 13 11.2 6.0 33 302 8839 215 45 25.8 36.9 | 228 34 25.5 22.9 34 300 8880 210 41 20.5 35.5 | 223 30 20.2 21.6 35 288 9144 215 38 21.8 31.1 | 231 28 21.5 17.2 36 251 10058 205 30 12.7 27.2 | 223 18 12.4 13.2 37 250 10090 210 33 16.5 28.6 | 228 22 16.2 14.6 38 240 10363 230 25 19.2 16.1 | 264 19 18.9 2.1 39 218 10973 215 29 16.6 23.8 | 239 19 16.3 9.8 40 200 11550 235 42 34.4 24.1 | 253 36 34.1 10.1 41 199 11582 230 45 34.5 28.9 | 246 37 34.2 15.0 42 151 13411 240 54 46.8 27.0 | 254 48 46.5 13.1 43 150 13440 240 50 43.3 25.0 | 256 44 43.0 11.1 44 137 14021 245 38 34.4 16.1 | 266 34 34.1 2.1 45 114 15240 245 48 43.5 20.3 | 262 44 43.2 6.3 46 109 15545 245 53 48.0 22.4 | 260 48 47.7 8.5 47 100 16100 235 53 43.4 30.4 | 249 46 43.1 16.5 48 95 16459 235 53 43.4 30.4 | 249 46 43.1 16.5 49 82 17374 245 48 43.5 20.3 | 262 44 43.2 6.3 50 75 17983 230 55 42.1 35.4 | 243 47 41.8 21.4 51 73 18173 245 64 58.0 27.0 | 257 59 57.7 13.1 52 72 18288 240 63 54.6 31.5 | 252 57 54.3 17.6 53 70 18450 255 61 58.9 15.8 | 268 59 58.6 1.8 54 65 18898 260 59 58.1 10.2 | 274 58 57.8 -3.7 55 62 19202 245 44 39.9 18.6 | 263 40 39.6 4.6 56 54 20117 230 49 37.5 31.5 | 245 41 37.2 17.5 57 52 20422 240 55 47.6 27.5 | 254 49 47.3 13.6 58 50 20680 245 42 38.1 17.7 | 264 38 37.8 3.8 59 46 21031 240 39 33.8 19.5 | 261 34 33.5 5.6 60 43 21336 245 43 39.0 18.2 | 264 39 38.7 4.2 61 29 22860 235 38 31.1 21.8 | 256 32 30.8 7.8 62 24 23774 240 43 37.2 21.5 | 258 38 36.9 7.6 Wind Parameters Mean winds (0-6000m): 151.2 at 18.6 knts Storm direction: 181.2 at 14.0 knts Shear (0-3000m) pos: 3.1 neg: 0.9 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 56.0 deg Storm rel helicity (0-3000m) pos: 125.3 neg: -23.4 tot: 101.9 m^2/s^2 ave: 34.0 10^-3 m/s^2 rel: 0.44 Storm rel vorticity (0-3000m) horiz: 8.3 stream: 3.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.49 Bulk Shear: 24.21 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 ------------------------------------------------------------------------------- 500 105 11 46 16| 11.8 0.0 11.8| 49.4 0.0 49.4 98.8 0.93| 13.3 12.4 1000 105 13 51 17| 8.0 0.0 8.0| 75.2 -6.5 68.6 68.6 0.76| 10.8 8.2 1500 117 16 65 16| 8.0 0.0 8.0|123.5 -6.5 116.9 77.9 0.83| 11.2 9.3 2000 126 18 76 15| 5.4 0.0 5.4|125.2 -11.2 114.1 57.0 0.72| 9.4 6.8 2500 130 18 80 14| 3.7 0.0 3.7|125.2 -15.1 110.2 44.1 0.61| 8.5 5.2 3000 133 18 81 13| 3.1 0.9 3.9|125.3 -23.4 101.9 34.0 0.44| 8.3 3.6 4000 134 17 82 13| 2.9 0.6 3.5|159.1 -24.0 135.1 33.8 0.49| 8.1 4.0 5000 143 18 92 11| 2.7 0.5 3.1|182.1 -27.8 154.2 30.8 0.52| 8.1 4.2 6000 151 19 104 10| 2.2 0.9 3.2|193.3 -63.0 130.3 21.7 0.29| 9.3 2.7 Wrote GIF file: /home/apache/climate/data/raob//PAKN/skewt/PAKN.skewt.20251204.12.gif