Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 0Z DEC 27, 2025 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 984.3 988.4 994.5 1000.5 1003.7 1007.1 1009.8 1010.2 1008.7 1008.5 1007.4 1007.0 1004.8 1004.5 1002.3 Mean SLP (mb): 1009.1 1013.3 1019.7 1025.9 1029.1 1032.8 1035.5 1035.9 1034.1 1034.1 1033.1 1032.4 1029.9 1029.8 1027.7 2m agl Tmp (F): 41.3 39.1 37.7 37.5 39.1 37.0 36.5 37.4 40.4 36.4 35.4 40.8 44.9 38.5 37.0 2m agl Dewpt(F): 38.5 37.8 36.6 36.7 34.7 34.3 34.7 32.8 30.9 27.2 26.1 28.3 28.8 24.9 23.7 2m agl RH (%): 90 95 96 97 84 90 93 83 68 69 68 60 53 58 58 10m agl Dir: 300 258 271 239 257 115 104 72 58 71 72 72 69 72 73 10m agl Spd(kt): 6 8 8 4 3 1 2 4 6 8 9 9 9 9 10 6hr Precip (in): 0.00 0.10 0.02 0.03 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AccumPrecip(in): 0.00 0.10 0.12 0.15 0.17 0.17 0.17 0.17 0.17 0.17 0.17 0.17 0.17 0.17 0.17 Sfc CAPE (J/kg): 30.5 79.6 62.8 64.7 35.8 4.0 10.2 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Sfc CINH (J/kg): -0.1 -6.5 -7.6 0.0 0.0 -7.2 -0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0-3km Hel(J/kg): 58.2 206.4 228.7 208.5 168.7 128.5 117.4 19.4 69.2 127.0 82.0 77.4 96.5 81.5 122.9 Precip H20 (in): 0.46 0.35 0.33 0.37 0.42 0.52 0.44 0.41 0.60 0.67 0.68 0.60 0.45 0.44 0.45 Lifted Index(C): 8.0 11.0 12.7 13.9 17.6 17.9 19.1 14.7 16.2 14.3 12.9 13.0 11.0 10.3 10.0 700mb VV(-ub/s): 6.1 1.4 -0.7 1.3 -1.5 -0.6 -1.8 -3.3 -1.0 -2.0 -2.5 -0.5 -0.2 -1.3 -1.4 Thk1000-500mb(m)5332.3 5328.9 5332.0 5337.2 5365.8 5369.7 5399.1 5436.7 5468.8 5503.9 5528.5 5540.7 5546.5 5544.5 5550.9 Thk1000-850mb(m)1307.8 1303.4 1297.5 1292.8 1292.0 1290.8 1290.1 1299.2 1316.5 1330.7 1338.5 1342.5 1346.0 1345.7 1345.7 Thk850-700mb(m):1515.2 1498.7 1496.1 1502.5 1513.4 1518.0 1527.0 1543.5 1546.5 1553.0 1561.0 1572.1 1577.1 1579.8 1585.7 SWEAT Index: 93.4 123.0 124.2 89.0 84.4 69.8 75.5 51.6 60.3 45.3 40.0 38.3 37.3 30.5 39.3 Total Totals Idx 43.5 36.9 34.9 34.1 24.6 18.6 21.2 29.5 25.4 27.8 30.7 29.0 32.6 35.0 33.9 Frz Hgt(ft amsl) 3059 2674 2345 1864 1792 2128 1370 2316 7012 7555 8464 10513 10822 10729 11265 0WetBlbHgt(amsl) 3002 2480 2246 1791 1612 1743 1178 1141 1720 5376 6092 6275 7013 6969 6775 Equil Prs (mb): 818 726 748 782 823 1007 1010 1010 1009 1009 1007 1007 1005 1004 1002 Equil Hgt(amsl): 5530 8633 8029 7036 5828 26 26 26 26 26 26 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: 23.6 26.8 25.9 21.0 20.7 22.7 18.5 58.5 62.2 59.2 57.2 55.1 55.0 53.7 52.7 Showalter Index: 9.0 12.8 14.3 14.8 19.6 20.8 20.2 15.2 16.4 14.6 12.8 13.2 11.4 9.9 10.3 Cap Strength(C): 1.3 0.9 5.9 0.0 6.3 -999.9 9.0 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 Storm Dir (deg): 300 326 343 353 360 347 15 11 12 26 8 340 324 339 349 Storm Spd (kts): 23 28 29 22 20 19 17 12 13 13 11 10 11 9 10 2m HeatIndex(F): 41 39 38 37 39 37 36 37 40 36 35 41 45 39 37 2m WindChill(F): 41 33 31 34 37 37 36 34 40 29 28 41 45 32 29 1000mb GPH (m): 74 108 159 207 233 261 282 286 274 272 263 260 243 239 222 950mb GPH (m): 492 525 573 620 646 673 693 697 689 690 684 682 665 661 642 950mb Temp (C): 2.9 2.5 1.0 -0.3 -0.7 -0.1 -1.7 0.0 4.2 7.4 9.9 10.6 10.9 10.9 10.7 950mb Dewpt(C): 2.5 1.0 0.5 -0.5 -1.1 -1.0 -2.1 -5.2 -9.0 -7.9 -6.8 -7.1 -7.5 -7.8 -6.1 950mb RH (%): 97 90 96 98 97 94 97 68 37 33 30 28 27 26 30 950mb Dir: 309 272 288 285 264 306 50 72 73 92 87 84 85 82 85 950mb Speed(kt): 11 19 21 11 4 3 2 9 13 17 14 18 20 19 21 900mb GPH (m): 927 959 1005 1051 1076 1103 1122 1128 1128 1135 1132 1131 1116 1111 1093 900mb Temp (C): 0.0 -1.2 -2.2 -3.2 -3.5 -3.3 -3.4 -0.9 3.3 7.0 8.7 9.7 10.4 10.7 11.1 900mb Dewpt(C): -0.2 -1.9 -2.4 -3.4 -4.6 -5.1 -5.3 -9.5 -6.8 -6.5 -4.4 -4.9 -6.0 -6.2 -6.3 900mb RH (%): 98 95 98 98 92 87 87 52 47 37 39 35 31 29 28 900mb Dir: 287 283 301 307 293 303 338 75 68 68 49 58 53 38 54 900mb Speed(kt): 20 28 29 19 12 8 11 10 8 8 7 6 7 7 5 850mb GPH (m): 1382 1411 1456 1500 1525 1552 1572 1585 1590 1603 1601 1603 1589 1585 1567 850mb Temp (C): -3.3 -4.6 -6.1 -6.5 -6.8 -5.8 -5.1 -0.6 2.3 4.3 5.3 6.8 7.9 8.4 9.3 850mb Dewpt(C): -3.6 -5.9 -6.3 -6.8 -8.5 -16.0 -12.0 -8.0 -6.6 -5.2 -2.4 -8.5 -5.3 -3.9 -6.4 850mb RH (%): 98 91 98 98 88 45 58 57 52 50 57 32 39 41 32 850mb Dir: 278 293 304 305 294 327 344 36 24 28 34 27 27 12 21 850mb Speed(kt): 25 32 31 20 15 9 15 8 11 10 9 7 6 5 5 800mb GPH (m): 1860 1885 1927 1970 1996 2028 2048 2069 2078 2093 2094 2098 2086 2083 2067 800mb Temp (C): -5.3 -8.2 -10.0 -10.5 -7.4 -6.0 -4.7 -1.2 0.3 1.1 2.3 4.2 5.3 5.9 7.0 800mb Dewpt(C): -5.5 -10.7 -10.7 -11.1 -21.0 -17.3 -6.5 -8.4 -9.0 -5.5 -7.2 -6.3 -6.3 -7.5 -10.3 800mb RH (%): 99 82 94 95 33 41 88 58 50 61 49 46 43 37 28 800mb Dir: 254 282 289 294 315 331 356 10 13 356 6 356 347 298 344 800mb Speed(kt): 29 31 29 22 18 20 22 13 14 11 11 6 5 3 4 750mb GPH (m): 2364 2382 2422 2467 2501 2531 2557 2582 2593 2609 2612 2620 2610 2609 2594 750mb Temp (C): -7.7 -11.9 -11.9 -8.3 -5.9 -7.0 -4.5 -2.2 -2.5 -1.6 -0.1 2.0 3.0 3.8 4.6 750mb Dewpt(C): -8.1 -15.7 -21.7 -25.5 -28.1 -8.1 -9.5 -8.1 -8.1 -7.1 -7.5 -5.4 -9.3 -16.7 -16.5 750mb RH (%): 97 73 44 24 16 92 68 64 66 66 57 58 40 21 20 750mb Dir: 248 275 295 319 329 318 351 357 358 344 348 310 304 279 307 750mb Speed(kt): 35 32 31 29 30 26 24 18 13 14 12 7 7 7 7 700mb GPH (m): 2897 2910 2952 3003 3039 3070 3099 3128 3137 3156 3162 3175 3166 3165 3153 700mb Temp (C): -11.6 -12.5 -9.6 -8.1 -7.8 -7.7 -5.1 -3.8 -5.3 -3.4 -1.3 0.1 0.8 0.6 2.1 700mb Dewpt(C): -12.3 -32.7 -41.9 -32.0 -19.8 -8.9 -12.6 -12.7 -7.2 -6.9 -7.3 -10.6 -18.0 -21.1 -19.2 700mb RH (%): 94 17 6 13 38 91 56 50 87 77 64 44 23 18 19 700mb Dir: 244 289 313 330 332 326 346 339 335 347 334 285 285 285 298 700mb Speed(kt): 38 37 45 40 32 35 27 15 16 19 15 10 11 9 11 650mb GPH (m): 3460 3475 3522 3575 3613 3644 3680 3711 3717 3741 3752 3765 3756 3755 3746 650mb Temp (C): -15.1 -12.9 -11.6 -10.7 -9.6 -9.9 -6.7 -5.1 -6.1 -4.0 -2.5 -2.3 -2.6 -2.8 -2.3 650mb Dewpt(C): -21.4 -57.1 -38.4 -29.0 -18.6 -11.2 -17.2 -25.4 -8.7 -5.9 -5.1 -13.5 -24.3 -28.7 -9.9 650mb RH (%): 59 1 9 21 48 90 43 19 82 87 82 42 17 12 56 650mb Dir: 250 303 319 330 334 321 345 319 318 338 314 283 276 286 299 650mb Speed(kt): 40 47 53 40 36 37 31 14 20 27 19 13 17 10 16 600mb GPH (m): 4062 4082 4132 4187 4227 4258 4301 4336 4342 4370 4384 4397 4386 4384 4376 600mb Temp (C): -17.8 -14.5 -14.1 -13.5 -12.2 -12.3 -10.1 -7.9 -7.6 -6.1 -5.6 -5.6 -6.1 -6.7 -6.4 600mb Dewpt(C): -34.7 -35.5 -39.2 -24.9 -18.2 -13.9 -29.2 -40.3 -9.0 -8.0 -9.5 -12.4 -33.5 -25.4 -13.3 600mb RH (%): 22 16 11 38 62 88 20 6 90 87 74 59 10 22 58 600mb Dir: 264 310 325 330 337 312 347 318 307 337 300 285 275 275 302 600mb Speed(kt): 42 56 57 44 42 40 34 22 26 28 17 20 21 15 21 550mb GPH (m): 4709 4735 4787 4842 4888 4919 4966 5005 5016 5047 5062 5073 5061 5057 5049 550mb Temp (C): -20.6 -19.0 -17.9 -18.5 -15.9 -15.8 -14.1 -12.8 -10.7 -9.8 -9.6 -9.9 -9.5 -10.6 -11.4 550mb Dewpt(C): -48.0 -38.0 -38.8 -28.1 -21.1 -18.4 -36.0 -38.0 -13.5 -12.5 -13.0 -12.2 -33.0 -18.2 -18.4 550mb RH (%): 7 18 15 43 65 80 14 11 80 81 76 84 13 54 57 550mb Dir: 282 303 327 329 339 311 341 316 318 335 288 281 268 279 287 550mb Speed(kt): 42 54 59 46 45 46 41 33 32 25 20 23 26 19 21 500mb GPH (m): 5406 5437 5491 5544 5599 5631 5681 5722 5743 5776 5791 5801 5789 5784 5773 500mb Temp (C): -25.2 -23.7 -23.7 -23.7 -20.0 -20.2 -19.1 -19.1 -14.9 -14.4 -13.9 -15.3 -15.0 -15.2 -15.5 500mb Dewpt(C): -51.1 -38.5 -44.3 -31.6 -24.1 -22.6 -36.4 -26.5 -20.8 -18.1 -18.6 -17.5 -22.4 -18.7 -37.5 500mb RH (%): 8 25 14 49 70 81 21 53 61 74 68 84 53 75 14 500mb Dir: 294 307 326 335 341 313 337 317 323 330 295 276 267 287 291 500mb Speed(kt): 43 60 61 49 54 52 45 35 38 26 21 25 25 20 30 450mb GPH (m): 6163 6197 6249 6306 6373 6403 6455 6499 6531 6566 6582 6590 6577 6572 6562 450mb Temp (C): -30.5 -30.2 -30.2 -28.3 -24.6 -25.6 -25.4 -22.9 -20.3 -19.9 -19.8 -19.8 -19.9 -20.2 -20.1 450mb Dewpt(C): -46.2 -42.5 -49.3 -38.3 -29.6 -29.2 -37.4 -29.7 -24.5 -23.7 -25.0 -23.2 -22.3 -25.7 -33.0 450mb RH (%): 21 30 15 39 64 72 33 55 69 72 64 75 82 62 32 450mb Dir: 302 309 322 347 339 316 336 321 326 325 285 269 265 279 292 450mb Speed(kt): 50 62 62 59 60 49 46 38 43 28 23 27 28 25 32 400mb GPH (m): 6989 7021 7074 7142 7220 7247 7299 7353 7391 7428 7445 7452 7441 7433 7422 400mb Temp (C): -36.3 -37.1 -37.3 -33.3 -30.9 -31.3 -31.0 -28.4 -26.8 -26.7 -26.4 -26.4 -25.8 -26.7 -27.1 400mb Dewpt(C): -49.1 -48.5 -52.8 -43.6 -35.7 -35.9 -42.0 -36.6 -30.9 -31.2 -31.6 -30.0 -29.0 -31.8 -38.5 400mb RH (%): 27 31 20 36 63 65 34 46 69 66 62 72 75 63 34 400mb Dir: 309 313 326 356 337 308 334 338 333 326 287 269 272 266 289 400mb Speed(kt): 58 67 63 78 62 57 60 50 44 29 23 26 30 34 30 350mb GPH (m): 7899 7931 7980 8066 8151 8177 8231 8296 8338 8375 8393 8402 8392 8381 8367 350mb Temp (C): -43.5 -43.7 -44.7 -40.1 -38.5 -38.7 -37.4 -35.2 -34.6 -34.8 -34.0 -33.5 -33.7 -34.4 -35.6 350mb Dewpt(C): -55.0 -53.8 -53.6 -49.2 -43.6 -45.2 -51.1 -43.4 -38.7 -40.0 -39.6 -41.4 -37.4 -39.1 -39.8 350mb RH (%): 29 34 38 39 60 52 24 44 67 60 58 46 70 63 66 350mb Dir: 311 316 332 2 340 307 337 341 336 324 300 258 274 268 292 350mb Speed(kt): 60 68 67 92 66 66 78 66 48 30 24 22 34 39 31 300mb GPH (m): 8918 8949 8997 9098 9192 9216 9275 9350 9395 9432 9451 9464 9453 9438 9420 300mb Temp (C): -50.8 -51.5 -50.7 -48.8 -46.5 -46.6 -46.1 -44.0 -43.6 -43.8 -43.7 -42.8 -42.8 -43.9 -44.7 300mb Dewpt(C): -60.3 -60.5 -58.6 -57.2 -51.4 -51.5 -57.5 -55.0 -52.6 -47.7 -47.5 -52.6 -46.3 -53.1 -48.2 300mb RH (%): 34 35 41 39 59 59 28 30 38 66 67 35 69 37 69 300mb Dir: 317 317 342 0 344 315 346 340 339 324 318 282 276 266 272 300mb Speed(kt): 62 68 78 101 74 78 90 77 52 40 22 21 36 47 36 250mb GPH (m): 10088 10114 10166 10270 10375 10402 10460 10544 10593 10627 10647 10665 10653 10633 10609 250mb Temp (C): -55.0 -56.7 -56.4 -58.2 -56.5 -55.7 -55.9 -54.7 -53.1 -54.0 -54.4 -53.5 -54.1 -54.9 -56.1 250mb Dewpt(C): -66.5 -66.7 -68.0 -66.0 -62.1 -61.3 -64.6 -65.7 -69.8 -58.2 -57.9 -65.2 -57.8 -59.3 -59.8 250mb RH (%): 25 30 24 39 51 52 35 27 13 62 67 25 65 60 65 250mb Dir: 300 313 343 0 338 334 356 344 330 324 319 297 271 269 269 250mb Speed(kt): 47 59 69 96 84 84 94 83 64 44 29 31 43 54 45 200mb GPH (m): 11515 11544 11581 11656 11755 11791 11848 11932 11990 12019 12034 12056 12042 12020 11994 200mb Temp (C): -53.8 -50.5 -54.9 -60.8 -65.4 -62.8 -64.6 -64.2 -65.0 -65.6 -66.1 -65.9 -66.0 -64.0 -63.5 200mb Dewpt(C): -78.8 -81.1 -76.8 -74.7 -71.0 -72.0 -70.9 -69.1 -72.0 -69.0 -69.7 -69.6 -68.3 -67.3 -67.4 200mb RH (%): 4 2 6 17 49 31 45 54 41 65 63 62 75 66 62 200mb Dir: 293 313 326 342 338 325 327 342 340 314 314 302 268 269 281 200mb Speed(kt): 38 38 53 76 83 73 67 63 47 52 37 33 45 48 37 150mb GPH (m): 13379 13407 13420 13474 13525 13573 13606 13669 13709 13749 13757 13783 13771 13772 13748 150mb Temp (C): -52.2 -52.9 -54.6 -54.7 -58.0 -58.1 -58.9 -64.6 -68.6 -66.7 -68.0 -64.7 -64.9 -62.9 -63.7 150mb Dewpt(C): -87.1 -83.2 -84.2 -84.3 -86.6 -86.6 -87.0 -81.3 -77.8 -79.2 -78.1 -80.4 -80.6 -81.8 -80.9 150mb RH (%): 1 2 2 2 2 2 2 10 29 18 25 12 12 8 10 150mb Dir: 281 302 307 325 329 333 331 329 333 311 308 304 282 287 289 150mb Speed(kt): 31 31 41 46 38 51 51 49 48 38 42 32 35 37 38 100mb GPH (m): 15982 16004 16012 16050 16074 16116 16136 16187 16195 16231 16235 16263 16257 16259 16239 100mb Temp (C): -55.6 -54.5 -56.5 -57.5 -59.8 -58.7 -59.9 -60.8 -61.4 -61.9 -62.5 -62.6 -62.9 -62.9 -62.7 100mb Dewpt(C): -89.5 -88.8 -90.2 -86.8 -93.0 -91.9 -88.0 -89.0 -87.0 -89.9 -90.4 -90.1 -90.6 -90.6 -90.6 100mb RH (%): 1 1 1 2 1 1 2 2 3 2 2 2 2 2 2 100mb Dir: 282 281 307 314 320 330 327 321 317 311 318 315 293 287 300 100mb Speed(kt): 23 24 23 16 32 28 33 34 29 26 36 30 26 36 36