Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 0Z DEC 26, 2025 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 979.4 979.7 979.4 982.6 984.1 987.9 993.0 999.5 1003.9 1006.9 1009.8 1011.8 1010.6 1010.2 1010.0 Mean SLP (mb): 1003.9 1004.1 1004.1 1007.3 1009.0 1013.0 1018.3 1024.9 1029.4 1032.5 1035.5 1037.6 1036.2 1035.9 1035.6 2m agl Tmp (F): 48.6 39.5 38.1 39.7 39.9 36.9 36.6 37.2 38.3 36.4 36.1 36.8 40.9 37.3 35.9 2m agl Dewpt(F): 43.3 36.3 35.1 39.1 38.0 35.7 35.6 34.6 34.4 35.2 34.6 33.7 34.0 29.8 29.1 2m agl RH (%): 81 88 89 98 93 95 96 90 86 95 94 89 76 74 76 10m agl Dir: 130 75 77 194 283 247 256 244 255 144 167 115 25 65 66 10m agl Spd(kt): 4 5 2 7 7 9 8 6 3 2 2 2 2 5 6 6hr Precip (in): 0.00 0.00 0.01 0.14 0.16 0.06 0.09 0.03 0.01 0.00 0.00 0.00 0.00 0.00 0.00 AccumPrecip(in): 0.00 0.00 0.01 0.16 0.32 0.37 0.46 0.49 0.50 0.50 0.51 0.51 0.51 0.51 0.51 Sfc CAPE (J/kg): 216.9 1.5 1.8 0.2 64.9 71.2 81.0 91.6 64.5 29.4 8.1 4.6 0.0 0.0 0.0 Sfc CINH (J/kg): -26.8 -3.3 -0.8 -0.3 -2.9 -7.8 -0.6 0.0 0.0 -1.8 -9.6 -7.3 0.0 0.0 0.0 0-3km Hel(J/kg): 107.8 77.8 20.9 128.5 -11.5 198.3 279.7 221.3 152.1 193.0 157.6 58.8 5.1 69.3 73.6 Precip H20 (in): 0.54 0.43 0.52 0.49 0.34 0.27 0.31 0.30 0.36 0.52 0.45 0.52 0.59 0.57 0.57 Lifted Index(C): -1.8 0.3 2.1 3.1 8.4 12.0 12.3 13.9 16.4 18.1 16.7 15.0 16.6 17.1 14.2 700mb VV(-ub/s): -2.1 3.5 2.3 3.6 5.3 4.5 4.1 1.4 -1.2 -1.6 0.2 -1.7 -0.2 -0.1 -2.1 Thk1000-500mb(m)5357.5 5354.2 5345.6 5321.3 5296.3 5291.8 5309.1 5321.4 5346.6 5365.9 5382.4 5422.8 5445.0 5491.3 5516.4 Thk1000-850mb(m)1332.6 1328.2 1320.2 1311.3 1301.8 1297.1 1292.9 1287.9 1287.7 1288.7 1288.7 1292.2 1314.2 1328.3 1334.7 Thk850-700mb(m):1526.2 1527.0 1521.5 1516.3 1503.3 1488.2 1489.0 1497.1 1512.6 1521.6 1523.7 1544.3 1545.8 1546.5 1555.0 SWEAT Index: 287.9 199.9 123.6 150.7 101.5 151.1 130.7 104.1 77.2 59.5 90.8 64.1 72.0 51.8 47.9 Total Totals Idx 58.0 55.7 53.1 52.7 39.6 32.4 35.1 31.7 21.8 20.1 24.3 29.6 22.2 21.7 28.6 Frz Hgt(ft amsl) 4944 4715 4174 3518 2318 2224 1932 1505 1697 1660 1727 1598 6822 6655 7794 0WetBlbHgt(amsl) 4545 4080 3797 3465 2251 1969 1878 1276 1522 1499 1410 1222 1974 4397 3708 Equil Prs (mb): 397 980 979 983 689 705 746 778 826 843 875 1012 1011 1010 1010 Equil Hgt(amsl): 22963 26 26 26 9840 9303 8031 7120 5739 5278 4418 26 26 26 26 Hail Size(in): 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Conv Wind Gust: 38.0 34.3 25.5 21.6 23.9 27.6 25.8 22.4 19.6 20.0 21.6 21.2 51.1 59.3 60.5 Showalter Index: 0.1 1.7 3.2 4.0 11.4 15.2 14.4 16.2 20.6 21.3 18.8 15.5 17.2 17.5 14.3 Cap Strength(C): 0.0 -999.9 -999.9 -999.9 0.0 0.8 4.3 8.5 6.4 5.6 8.8 9.7 -999.9 -999.9 -999.9 Storm Dir (deg): 240 233 259 270 299 332 341 357 4 357 16 17 354 19 8 Storm Spd (kts): 23 15 8 18 26 32 32 25 20 17 20 14 14 12 11 2m HeatIndex(F): 49 39 38 40 40 37 37 37 38 36 36 37 41 37 36 2m WindChill(F): 49 35 38 34 35 30 30 32 36 36 36 37 41 33 30 1000mb GPH (m): 32 34 33 60 73 105 147 199 235 259 283 298 290 286 283 950mb GPH (m): 456 457 452 477 490 520 561 611 648 671 694 710 705 705 706 950mb Temp (C): 8.6 7.6 6.1 3.1 1.9 1.3 0.2 -1.0 -0.9 -0.8 -0.7 -1.2 2.3 6.7 8.5 950mb Dewpt(C): 5.9 3.6 1.5 2.8 1.6 -0.1 0.0 -1.6 -1.2 -1.2 -1.6 -2.5 -4.8 -5.6 -5.8 950mb RH (%): 83 75 72 98 98 90 98 96 98 97 94 91 59 41 35 950mb Dir: 192 98 126 204 288 262 278 275 265 205 269 12 70 95 57 950mb Speed(kt): 8 5 3 15 12 19 19 13 5 6 4 2 9 8 6 900mb GPH (m): 901 900 893 914 923 952 991 1040 1076 1100 1123 1138 1141 1148 1151 900mb Temp (C): 5.1 4.4 3.3 1.2 -1.9 -2.3 -3.3 -4.2 -4.5 -4.0 -4.7 -3.7 2.8 6.5 7.0 900mb Dewpt(C): 2.2 1.4 0.8 0.9 -2.3 -3.0 -3.6 -5.0 -6.4 -4.1 -5.0 -5.7 -5.6 -6.4 -13.8 900mb RH (%): 82 81 84 98 97 95 97 94 87 99 98 86 54 39 21 900mb Dir: 214 222 279 244 289 277 295 302 295 267 330 20 37 25 20 900mb Speed(kt): 27 10 7 21 21 26 29 20 11 7 8 6 8 6 7 850mb GPH (m): 1364 1362 1353 1371 1375 1402 1440 1487 1523 1548 1571 1591 1604 1614 1617 850mb Temp (C): 1.3 0.6 -0.7 -2.2 -4.6 -6.0 -6.9 -7.7 -8.0 -7.3 -5.9 -1.4 3.0 3.4 4.2 850mb Dewpt(C): -1.0 -3.1 -2.3 -2.5 -7.9 -10.3 -7.7 -9.4 -13.3 -13.0 -12.6 -5.9 -12.1 -10.5 -4.7 850mb RH (%): 85 76 89 98 78 72 94 87 66 64 59 71 32 35 52 850mb Dir: 214 218 268 247 276 286 301 306 300 302 335 7 5 356 11 850mb Speed(kt): 34 16 9 21 27 32 34 23 10 10 15 11 18 13 11 800mb GPH (m): 1848 1845 1835 1850 1850 1873 1909 1955 1994 2024 2046 2075 2092 2102 2108 800mb Temp (C): -3.0 -3.1 -3.9 -4.7 -6.8 -9.6 -10.6 -11.7 -6.7 -4.0 -5.5 -0.5 -0.1 -0.6 1.2 800mb Dewpt(C): -3.4 -7.9 -5.3 -5.6 -15.0 -20.4 -13.2 -14.2 -32.2 -28.1 -7.1 -6.4 -11.9 -10.8 -8.4 800mb RH (%): 97 70 90 93 52 42 81 82 12 14 88 64 41 46 49 800mb Dir: 214 215 252 246 269 283 292 311 324 335 342 358 351 346 349 800mb Speed(kt): 35 16 9 21 32 33 35 20 17 22 25 17 21 19 14 750mb GPH (m): 2356 2352 2341 2355 2350 2368 2403 2450 2497 2530 2553 2589 2605 2615 2624 750mb Temp (C): -6.8 -6.0 -7.3 -8.0 -9.9 -13.0 -12.6 -9.3 -6.1 -6.5 -4.9 -2.1 -2.9 -2.5 -1.2 750mb Dewpt(C): -8.1 -14.7 -8.1 -11.1 -17.9 -23.9 -23.3 -38.5 -35.6 -8.3 -8.3 -7.5 -9.2 -5.7 -12.0 750mb RH (%): 91 50 94 79 52 40 41 8 8 88 77 66 62 79 43 750mb Dir: 219 214 246 246 257 284 297 324 336 330 347 356 330 347 340 750mb Speed(kt): 36 19 8 23 37 31 36 32 27 26 24 19 15 19 16 700mb GPH (m): 2891 2889 2875 2887 2878 2890 2929 2984 3035 3069 3095 3135 3150 3161 3172 700mb Temp (C): -10.2 -9.3 -10.4 -11.2 -13.7 -15.5 -11.8 -8.1 -7.6 -7.2 -5.3 -4.6 -4.6 -4.0 -2.0 700mb Dewpt(C): -13.9 -22.1 -12.3 -15.1 -15.5 -26.7 -32.2 -38.9 -23.4 -9.6 -11.7 -10.6 -6.8 -9.2 -12.2 700mb RH (%): 74 35 86 73 86 39 17 7 27 84 61 63 84 67 46 700mb Dir: 224 210 245 246 245 288 312 332 338 338 348 2 295 324 336 700mb Speed(kt): 36 22 7 26 42 33 47 44 34 34 28 20 16 16 16 650mb GPH (m): 3457 3457 3441 3451 3436 3447 3496 3556 3608 3643 3674 3715 3730 3742 3760 650mb Temp (C): -13.9 -13.8 -13.7 -14.9 -17.4 -16.7 -12.0 -10.9 -10.5 -10.5 -7.3 -6.9 -8.2 -5.8 -3.6 650mb Dewpt(C): -19.8 -28.7 -15.9 -16.1 -24.8 -56.7 -41.2 -30.5 -21.7 -12.3 -15.4 -13.7 -11.5 -9.8 -5.7 650mb RH (%): 62 28 84 90 53 2 7 19 40 87 53 59 77 73 85 650mb Dir: 219 209 228 242 247 300 320 334 338 337 349 1 294 331 329 650mb Speed(kt): 33 23 11 29 44 47 63 49 38 39 34 21 25 18 23 600mb GPH (m): 4059 4058 4044 4051 4034 4047 4104 4166 4219 4256 4294 4337 4347 4371 4391 600mb Temp (C): -18.6 -18.7 -18.1 -19.2 -19.1 -17.5 -15.0 -14.5 -14.6 -12.9 -10.8 -9.4 -11.2 -5.5 -4.8 600mb Dewpt(C): -26.8 -27.3 -20.6 -22.6 -60.7 -52.8 -37.6 -31.2 -22.1 -14.1 -26.4 -21.4 -12.5 -11.0 -10.2 600mb RH (%): 49 47 81 75 2 3 13 23 54 90 27 37 90 65 66 600mb Dir: 215 199 237 238 256 312 321 334 337 329 357 348 298 343 318 600mb Speed(kt): 34 22 15 32 49 62 65 50 40 37 40 29 27 24 22 550mb GPH (m): 4701 4700 4688 4692 4677 4696 4757 4820 4874 4914 4955 5004 5012 5048 5070 550mb Temp (C): -23.5 -23.7 -22.9 -23.7 -22.9 -19.5 -19.4 -18.8 -17.4 -16.7 -15.8 -13.3 -13.2 -9.5 -9.4 550mb Dewpt(C): -32.5 -29.0 -25.3 -30.8 -55.3 -45.1 -39.1 -33.2 -20.4 -18.4 -30.8 -28.1 -14.0 -15.3 -13.4 550mb RH (%): 44 62 81 53 4 9 16 28 77 87 27 28 93 63 73 550mb Dir: 203 187 225 238 269 319 324 336 340 327 348 331 309 342 318 550mb Speed(kt): 36 28 20 35 48 78 66 52 48 37 52 41 33 26 25 500mb GPH (m): 5389 5388 5379 5381 5369 5397 5456 5521 5582 5625 5665 5721 5735 5777 5799 500mb Temp (C): -28.8 -29.1 -28.1 -28.7 -26.1 -24.4 -24.9 -24.4 -21.5 -20.2 -21.4 -18.5 -15.6 -14.4 -14.6 500mb Dewpt(C): -38.4 -37.8 -30.9 -38.8 -58.5 -43.2 -40.4 -37.4 -24.8 -22.7 -36.3 -24.6 -17.2 -20.2 -18.1 500mb RH (%): 40 44 78 38 4 17 23 30 75 80 26 59 88 62 75 500mb Dir: 192 196 205 240 289 320 319 339 342 325 346 324 316 344 316 500mb Speed(kt): 40 34 24 36 48 88 62 58 57 39 61 42 36 26 25 450mb GPH (m): 6133 6131 6126 6125 6124 6153 6210 6279 6352 6398 6433 6499 6523 6567 6589 450mb Temp (C): -34.9 -35.8 -34.3 -35.3 -30.5 -31.3 -32.1 -29.4 -25.3 -24.8 -26.2 -23.5 -20.6 -19.6 -20.1 450mb Dewpt(C): -44.1 -44.4 -37.4 -44.1 -50.9 -50.0 -44.1 -38.0 -30.3 -28.0 -41.2 -31.4 -23.4 -27.3 -27.8 450mb RH (%): 40 42 74 42 13 15 31 44 64 75 24 49 78 51 51 450mb Dir: 190 214 203 246 305 318 326 346 346 324 346 331 321 344 315 450mb Speed(kt): 41 39 26 35 61 86 72 72 64 40 64 40 37 29 20 400mb GPH (m): 6942 6936 6935 6934 6951 6974 7029 7112 7198 7244 7276 7350 7383 7430 7451 400mb Temp (C): -41.9 -42.6 -42.2 -40.9 -36.0 -38.3 -38.9 -34.0 -30.3 -30.4 -30.9 -29.2 -26.8 -26.0 -26.3 400mb Dewpt(C): -48.7 -48.3 -45.7 -51.7 -54.8 -55.3 -45.2 -41.7 -39.3 -33.6 -42.3 -39.1 -30.2 -34.2 -37.2 400mb RH (%): 49 55 70 32 14 17 53 47 42 74 33 39 74 47 36 400mb Dir: 195 222 206 265 303 321 326 349 349 320 349 342 332 339 312 400mb Speed(kt): 40 65 28 28 65 87 79 89 70 43 84 54 42 30 23 350mb GPH (m): 7833 7823 7820 7831 7863 7878 7929 8034 8132 8179 8209 8288 8330 8378 8398 350mb Temp (C): -47.4 -49.6 -50.4 -45.8 -42.6 -44.7 -45.6 -40.4 -37.7 -37.3 -38.2 -36.7 -34.5 -34.6 -34.8 350mb Dewpt(C): -56.9 -57.7 -54.2 -60.1 -57.0 -58.1 -52.4 -48.4 -47.9 -41.0 -46.3 -46.3 -38.4 -39.9 -42.9 350mb RH (%): 35 40 65 20 21 23 48 44 35 70 44 38 69 60 45 350mb Dir: 202 216 183 295 304 326 333 356 350 315 353 345 338 331 319 350mb Speed(kt): 46 55 32 29 65 87 86 98 76 44 100 69 46 31 30 300mb GPH (m): 8842 8826 8825 8849 8889 8897 8944 9066 9174 9222 9249 9335 9385 9433 9453 300mb Temp (C): -50.8 -51.1 -50.6 -49.2 -49.1 -50.1 -51.5 -49.2 -46.6 -47.2 -47.2 -45.8 -44.2 -44.1 -43.8 300mb Dewpt(C): -68.8 -68.9 -67.3 -68.5 -61.2 -61.3 -59.6 -53.4 -56.3 -50.8 -55.6 -55.8 -48.8 -51.4 -52.3 300mb RH (%): 12 12 14 10 25 28 40 62 34 68 40 33 61 46 40 300mb Dir: 195 211 230 308 310 322 345 355 345 316 352 351 342 337 323 300mb Speed(kt): 41 41 29 35 62 72 102 106 84 46 103 73 55 32 33 250mb GPH (m): 10023 10013 10012 10037 10068 10070 10114 10233 10358 10399 10429 10522 10579 10629 10649 250mb Temp (C): -51.7 -50.2 -49.8 -51.5 -54.3 -54.7 -54.5 -58.9 -56.2 -57.5 -56.8 -55.5 -54.9 -54.2 -54.4 250mb Dewpt(C): -84.0 -76.5 -76.2 -72.1 -67.4 -66.2 -70.8 -64.7 -66.4 -61.1 -64.6 -62.3 -58.4 -58.7 -58.7 250mb RH (%): 2 4 4 8 21 25 14 49 29 65 39 45 67 59 61 250mb Dir: 185 220 235 295 301 305 340 2 344 320 358 350 339 337 323 250mb Speed(kt): 42 40 29 32 51 62 81 107 88 60 112 92 66 50 34 200mb GPH (m): 11475 11470 11472 11486 11502 11512 11549 11629 11739 11784 11815 11905 11964 12019 12034 200mb Temp (C): -51.6 -50.1 -49.5 -49.7 -52.6 -48.8 -52.2 -57.3 -65.6 -62.5 -63.8 -67.1 -66.3 -65.7 -66.5 200mb Dewpt(C): -79.3 -81.5 -80.6 -87.0 -79.8 -79.7 -79.4 -79.8 -68.7 -73.0 -71.6 -69.8 -70.3 -70.7 -70.1 200mb RH (%): 3 2 2 1 3 2 3 5 68 26 37 70 60 53 62 200mb Dir: 211 229 243 270 279 311 330 336 347 332 335 343 341 333 315 200mb Speed(kt): 41 33 34 31 36 37 58 75 86 61 75 97 76 55 35 150mb GPH (m): 13352 13349 13352 13367 13369 13386 13402 13454 13516 13561 13587 13646 13697 13740 13746 150mb Temp (C): -50.8 -50.8 -50.5 -50.8 -51.0 -51.4 -54.4 -54.9 -57.5 -59.3 -59.4 -62.4 -66.7 -67.0 -68.4 150mb Dewpt(C): -86.7 -86.1 -85.9 -86.2 -86.3 -86.6 -88.7 -84.5 -89.9 -83.3 -85.0 -81.8 -80.4 -78.3 -78.3 150mb RH (%): 1 1 1 1 1 1 1 2 1 4 3 7 15 22 26 150mb Dir: 237 228 247 255 281 295 308 337 334 333 334 338 332 327 312 150mb Speed(kt): 28 32 34 27 34 31 43 46 44 48 55 50 43 43 49 100mb GPH (m): 15971 15967 15968 15982 15973 15992 15989 16040 16065 16107 16122 16169 16190 16221 16228 100mb Temp (C): -53.6 -53.6 -54.3 -54.4 -54.8 -55.0 -56.4 -56.9 -59.0 -58.3 -59.4 -61.0 -61.0 -61.7 -62.6 100mb Dewpt(C): -88.1 -83.6 -77.9 -84.2 -88.9 -89.1 -90.1 -92.8 -92.0 -91.5 -87.9 -89.1 -89.4 -89.7 -90.2 100mb RH (%): 1 2 0 2 1 1 1 1 1 1 2 2 2 2 2 100mb Dir: 244 242 263 250 282 286 306 322 332 333 330 330 321 319 332 100mb Speed(kt): 26 29 22 25 27 22 31 18 30 31 35 33 31 33 36