Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z DEC 28, 2025 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 1009.6 1010.2 1008.4 1008.1 1006.3 1006.1 1004.2 1003.2 1000.8 999.6 997.3 997.5 996.7 996.4 993.4 Mean SLP (mb): 1035.4 1035.9 1033.8 1033.8 1031.9 1031.5 1029.4 1028.5 1026.1 1024.9 1022.2 1022.8 1022.0 1021.6 1018.1 2m agl Tmp (F): 35.7 37.5 39.4 35.4 35.6 38.6 43.2 38.4 37.0 39.1 43.7 38.0 37.7 40.3 48.1 2m agl Dewpt(F): 33.4 32.2 30.5 27.6 28.0 28.4 28.8 25.2 24.5 25.4 27.4 25.6 24.5 29.3 36.3 2m agl RH (%): 91 81 70 73 74 66 56 58 60 57 52 60 59 64 63 10m agl Dir: 86 75 70 76 75 76 74 75 76 79 82 82 80 84 84 10m agl Spd(kt): 2 7 7 10 10 11 9 11 12 12 10 9 7 5 3 6hr Precip (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 AccumPrecip(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 Sfc CAPE (J/kg): 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Sfc CINH (J/kg): 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0-3km Hel(J/kg): 89.9 68.8 53.8 127.6 137.8 87.8 94.1 113.8 176.3 191.0 181.3 173.0 127.0 98.0 78.5 Precip H20 (in): 0.55 0.44 0.44 0.63 0.67 0.56 0.44 0.55 0.52 0.49 0.36 0.39 0.38 0.39 0.40 Lifted Index(C): 15.0 14.4 14.5 14.5 11.5 13.0 11.6 9.8 10.1 11.1 10.5 10.1 10.1 9.6 9.9 700mb VV(-ub/s): -1.9 -1.8 -1.3 -0.6 -3.8 0.2 -1.3 -2.8 -0.9 -1.1 0.8 0.5 0.9 0.5 0.3 Thk1000-500mb(m)5379.7 5437.1 5467.0 5496.7 5526.2 5538.6 5542.4 5557.9 5575.4 5587.8 5590.5 5575.8 5561.9 5547.0 5545.5 Thk1000-850mb(m)1298.1 1302.3 1316.2 1326.1 1335.3 1341.3 1346.2 1349.9 1351.1 1352.1 1353.0 1345.6 1343.5 1342.1 1343.9 Thk850-700mb(m):1519.7 1542.4 1551.8 1559.2 1568.1 1573.8 1577.4 1586.6 1595.3 1600.1 1600.6 1592.3 1586.9 1583.9 1582.8 SWEAT Index: 68.1 58.0 44.6 38.6 39.8 43.0 44.6 27.8 23.6 24.6 30.5 35.6 37.8 36.1 39.8 Total Totals Idx 31.9 30.9 28.8 27.8 32.2 29.6 30.5 34.5 33.3 29.1 30.7 31.6 32.7 34.1 34.0 Frz Hgt(ft amsl) 2674 2936 7461 8342 9373 10589 10664 10824 11528 11992 12289 12275 11497 10919 10774 0WetBlbHgt(amsl) 2544 1741 2614 5062 6374 6157 7013 6895 8558 8855 6886 6798 6626 6596 6319 Equil Prs (mb): 1010 1010 1008 1008 1006 1006 1004 1003 1001 1000 997 998 997 996 993 Equil Hgt(amsl): 26 26 26 26 26 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: 22.2 55.5 55.6 56.7 56.2 56.7 55.0 55.6 54.2 55.9 57.0 55.3 54.3 52.5 51.6 Showalter Index: 15.3 14.6 14.7 14.4 11.7 12.8 12.0 9.8 10.0 11.4 10.7 10.8 10.8 10.3 10.4 Cap Strength(C):-999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 Storm Dir (deg): 26 39 1 9 357 344 335 38 35 198 249 258 267 260 265 Storm Spd (kts): 16 13 10 12 12 12 11 8 8 9 11 11 11 10 10 2m HeatIndex(F): 36 37 39 35 36 39 43 38 37 39 44 38 38 40 48 2m WindChill(F): 36 32 34 27 28 31 43 31 29 31 44 31 32 40 48 1000mb GPH (m): 281 286 271 268 254 252 237 229 209 200 181 183 176 174 149 950mb GPH (m): 694 698 686 685 671 671 659 649 628 619 603 604 598 595 574 950mb Temp (C): 0.6 1.1 4.0 6.1 8.1 9.5 10.6 11.4 11.3 11.0 11.8 9.9 9.1 8.8 9.1 950mb Dewpt(C): 0.2 -2.7 -5.1 -5.4 -5.6 -7.3 -8.1 -8.2 -7.1 -8.6 -8.7 -5.3 -0.3 -1.4 -3.0 950mb RH (%): 97 76 51 43 37 30 26 24 27 24 23 33 51 48 42 950mb Dir: 43 101 86 95 92 89 89 89 92 95 105 127 136 138 118 950mb Speed(kt): 5 12 16 22 22 25 22 25 28 31 21 11 6 6 4 900mb GPH (m): 1126 1131 1125 1128 1118 1120 1110 1102 1082 1072 1055 1053 1046 1042 1021 900mb Temp (C): -1.5 -1.3 3.4 6.5 8.9 10.7 11.2 12.5 13.4 13.8 13.0 10.5 10.0 9.7 8.8 900mb Dewpt(C): -1.8 -4.3 -7.4 -8.1 -8.8 -7.3 -8.8 -9.1 -9.9 -11.2 -13.5 -11.8 -12.5 -11.0 -10.1 900mb RH (%): 98 80 45 34 27 27 23 21 18 16 14 19 19 22 25 900mb Dir: 335 86 74 100 78 63 58 79 107 127 165 206 214 189 194 900mb Speed(kt): 6 8 8 8 8 8 7 8 8 9 5 8 6 5 5 850mb GPH (m): 1579 1588 1587 1594 1589 1594 1584 1578 1560 1552 1534 1528 1520 1516 1493 850mb Temp (C): -4.4 -0.6 2.2 4.9 7.0 7.7 8.7 10.0 11.3 12.5 12.3 10.5 9.6 8.9 8.7 850mb Dewpt(C): -5.0 -5.7 -6.5 -7.4 -4.4 -7.5 -8.0 -6.1 -7.8 -11.1 -10.9 -9.9 -6.8 -6.5 -6.7 850mb RH (%): 95 68 52 40 44 33 30 31 25 18 18 23 30 33 33 850mb Dir: 344 41 38 40 37 21 27 49 64 149 230 243 272 247 230 850mb Speed(kt): 11 10 7 5 10 9 7 5 3 5 6 8 6 4 4 800mb GPH (m): 2055 2071 2075 2087 2084 2090 2082 2079 2064 2057 2039 2030 2020 2015 1992 800mb Temp (C): -5.6 -1.8 0.6 2.8 3.9 4.9 5.5 7.4 9.0 10.0 10.1 8.4 7.2 6.7 6.6 800mb Dewpt(C): -6.1 -7.3 -8.5 -8.4 -7.1 -10.1 -6.3 -11.3 -10.7 -9.5 -19.5 -12.7 -10.6 -9.9 -10.7 800mb RH (%): 96 66 50 43 44 33 42 25 23 24 11 21 27 29 28 800mb Dir: 2 29 10 353 359 346 358 21 82 168 229 245 261 250 237 800mb Speed(kt): 20 11 6 7 10 10 8 3 1 6 10 10 9 7 6 750mb GPH (m): 2561 2584 2592 2606 2605 2613 2606 2607 2595 2590 2571 2560 2548 2542 2518 750mb Temp (C): -6.0 -2.3 -1.0 -0.4 1.4 2.4 2.8 4.9 6.1 6.8 7.3 5.8 5.0 4.6 4.3 750mb Dewpt(C): -7.0 -10.9 -12.1 -7.1 -9.6 -10.8 -12.1 -13.4 -7.7 -6.9 -17.3 -16.4 -17.8 -16.3 -16.6 750mb RH (%): 92 52 43 60 44 37 32 25 36 37 15 18 17 20 20 750mb Dir: 359 8 349 320 313 309 324 345 198 189 222 238 252 249 236 750mb Speed(kt): 25 14 7 9 11 12 9 5 2 8 13 15 14 11 8 700mb GPH (m): 3099 3130 3139 3154 3157 3167 3161 3165 3156 3152 3134 3121 3107 3100 3076 700mb Temp (C): -8.4 -2.8 -3.0 -3.4 -1.6 0.3 0.5 0.9 2.6 3.3 3.9 3.2 2.5 1.7 1.3 700mb Dewpt(C): -11.7 -16.0 -15.2 -9.7 -7.5 -17.3 -21.5 -4.3 -9.8 -10.7 -17.6 -23.0 -24.6 -23.4 -18.4 700mb RH (%): 77 35 39 62 64 25 18 68 39 35 19 13 12 14 22 700mb Dir: 353 7 317 296 309 290 302 343 278 207 226 235 243 244 236 700mb Speed(kt): 25 16 7 13 17 15 13 8 5 9 16 18 19 15 13 650mb GPH (m): 3671 3714 3723 3738 3744 3758 3751 3756 3750 3749 3731 3717 3701 3692 3667 650mb Temp (C): -10.2 -5.3 -5.6 -5.1 -3.1 -2.8 -2.9 -3.1 -1.7 -0.6 0.1 0.2 -1.2 -2.7 -2.4 650mb Dewpt(C): -14.9 -22.7 -23.0 -6.9 -5.2 -9.1 -21.1 -11.1 -8.7 -12.1 -22.8 -25.1 -17.3 -15.4 -19.7 650mb RH (%): 69 24 24 87 86 62 23 54 59 41 16 13 28 37 26 650mb Dir: 352 4 280 286 306 283 293 324 298 230 230 234 236 238 238 650mb Speed(kt): 26 19 8 19 23 17 17 9 9 9 19 23 25 19 17 600mb GPH (m): 4286 4338 4346 4364 4376 4388 4380 4384 4381 4382 4366 4353 4334 4321 4296 600mb Temp (C): -11.5 -8.8 -8.4 -7.0 -5.6 -6.4 -6.9 -6.9 -6.0 -5.2 -5.2 -4.2 -4.5 -6.3 -6.5 600mb Dewpt(C): -18.5 -29.9 -33.0 -8.3 -6.6 -11.6 -21.2 -11.7 -9.7 -11.2 -8.4 -18.6 -28.0 -26.0 -30.1 600mb RH (%): 57 17 12 90 93 67 31 69 75 63 78 32 14 20 14 600mb Dir: 359 354 283 317 289 285 281 303 308 257 239 233 233 234 243 600mb Speed(kt): 35 24 14 24 23 19 18 11 14 12 18 24 25 22 23 550mb GPH (m): 4948 5006 5016 5038 5052 5063 5054 5059 5057 5059 5044 5031 5011 4996 4970 550mb Temp (C): -15.2 -13.5 -11.9 -10.7 -10.2 -10.2 -10.5 -10.4 -10.1 -10.0 -9.9 -9.3 -9.9 -10.4 -10.9 550mb Dewpt(C): -24.3 -27.3 -25.7 -11.9 -12.7 -13.2 -30.7 -12.8 -17.3 -17.1 -20.3 -17.4 -18.9 -29.1 -26.5 550mb RH (%): 46 31 32 91 82 78 18 82 56 56 43 52 48 21 27 550mb Dir: 356 347 296 323 287 276 261 297 302 272 247 233 238 226 242 550mb Speed(kt): 40 31 27 30 22 24 26 14 18 13 17 21 26 26 28 500mb GPH (m): 5660 5723 5738 5765 5780 5791 5780 5786 5784 5788 5771 5759 5738 5721 5695 500mb Temp (C): -20.7 -18.6 -16.5 -15.2 -14.8 -14.7 -14.9 -15.3 -14.9 -13.8 -14.6 -15.5 -15.0 -15.9 -16.0 500mb Dewpt(C): -30.8 -28.6 -21.5 -17.6 -17.7 -17.1 -18.2 -18.0 -24.5 -24.5 -28.3 -20.1 -33.1 -26.3 -28.8 500mb RH (%): 41 42 66 82 79 82 76 80 44 41 31 68 20 41 33 500mb Dir: 351 337 302 330 289 273 271 289 300 267 256 240 241 227 235 500mb Speed(kt): 47 38 31 29 19 25 30 19 18 15 19 20 26 28 32 450mb GPH (m): 6430 6500 6523 6554 6569 6580 6570 6573 6574 6579 6559 6544 6523 6505 6477 450mb Temp (C): -26.0 -23.7 -21.4 -20.2 -20.1 -19.8 -19.1 -20.7 -20.3 -19.9 -20.3 -20.7 -21.9 -22.2 -22.2 450mb Dewpt(C): -39.5 -36.9 -27.5 -24.7 -22.5 -24.2 -21.9 -28.9 -30.0 -27.8 -28.8 -27.9 -30.3 -27.0 -25.1 450mb RH (%): 28 30 58 68 81 68 79 48 42 51 48 53 47 65 78 450mb Dir: 351 338 314 333 294 279 267 289 305 283 228 244 242 238 241 450mb Speed(kt): 60 37 29 24 22 19 30 26 18 20 21 23 28 30 32 400mb GPH (m): 7271 7349 7380 7415 7430 7444 7436 7433 7435 7440 7420 7404 7381 7359 7332 400mb Temp (C): -32.2 -29.9 -27.9 -26.4 -26.8 -26.0 -25.7 -26.7 -26.4 -26.7 -26.5 -26.7 -27.2 -28.1 -28.4 400mb Dewpt(C): -48.9 -39.9 -33.2 -33.8 -29.4 -31.3 -30.3 -34.4 -36.0 -32.6 -36.9 -37.3 -39.9 -35.3 -31.4 400mb RH (%): 19 38 61 51 79 62 66 49 41 58 38 37 30 51 76 400mb Dir: 356 341 327 334 294 293 259 290 313 283 238 226 234 245 244 400mb Speed(kt): 73 46 33 26 24 17 31 33 22 21 25 27 36 35 33 350mb GPH (m): 8201 8285 8323 8364 8378 8392 8386 8379 8384 8388 8368 8352 8327 8303 8273 350mb Temp (C): -38.1 -37.3 -35.6 -34.2 -34.3 -34.2 -34.3 -35.5 -33.8 -34.1 -34.6 -33.9 -34.6 -35.3 -35.7 350mb Dewpt(C): -57.1 -46.7 -39.7 -45.5 -37.6 -38.0 -37.8 -45.0 -46.1 -42.6 -44.6 -50.3 -49.2 -46.7 -39.9 350mb RH (%): 13 38 67 32 72 69 71 39 29 43 37 19 23 32 66 350mb Dir: 359 346 339 335 291 310 262 287 312 284 251 233 231 230 241 350mb Speed(kt): 85 54 40 29 21 18 28 39 30 24 28 32 39 40 38 300mb GPH (m): 9245 9331 9375 9420 9433 9450 9443 9434 9442 9446 9426 9411 9383 9357 9325 300mb Temp (C): -46.0 -45.8 -44.4 -44.1 -44.3 -43.6 -43.6 -43.8 -43.8 -43.7 -43.2 -43.0 -43.7 -44.7 -44.3 300mb Dewpt(C): -61.0 -55.9 -48.4 -52.4 -47.9 -47.7 -48.4 -51.7 -53.7 -50.1 -56.4 -60.6 -61.3 -55.8 -47.8 300mb RH (%): 19 33 65 41 69 65 60 43 35 51 24 14 14 30 69 300mb Dir: 352 348 346 334 300 302 273 301 313 279 245 234 225 218 237 300mb Speed(kt): 101 58 56 32 18 18 29 42 28 24 31 37 41 44 41 250mb GPH (m): 10432 10522 10573 10617 10627 10646 10640 10627 10638 10641 10623 10611 10580 10549 10518 250mb Temp (C): -55.9 -53.9 -52.6 -53.4 -53.8 -54.2 -54.3 -55.0 -54.5 -54.8 -54.4 -53.8 -54.1 -54.4 -54.8 250mb Dewpt(C): -63.3 -60.7 -59.5 -59.6 -57.6 -58.8 -58.0 -59.2 -60.6 -60.9 -58.0 -62.1 -66.8 -64.6 -58.5 250mb RH (%): 42 45 45 49 64 59 65 62 49 49 66 38 22 30 65 250mb Dir: 348 348 343 329 311 295 282 303 317 284 254 242 230 225 238 250mb Speed(kt): 101 87 66 36 26 26 32 41 48 25 29 35 39 37 43 200mb GPH (m): 11814 11917 11973 12018 12027 12038 12030 12017 12023 12029 12012 12001 11971 11944 11909 200mb Temp (C): -64.9 -65.0 -64.5 -63.9 -63.9 -65.4 -65.4 -64.5 -66.6 -66.3 -66.1 -65.5 -65.0 -63.9 -63.0 200mb Dewpt(C): -71.2 -69.0 -70.7 -66.5 -67.8 -69.7 -68.4 -68.3 -68.8 -70.6 -71.5 -69.4 -70.3 -70.1 -66.7 200mb RH (%): 44 60 45 73 61 57 68 62 76 58 49 61 50 45 63 200mb Dir: 334 339 334 327 319 288 281 297 298 279 271 242 226 232 238 200mb Speed(kt): 94 92 74 48 37 36 43 43 39 29 26 30 37 41 47 150mb GPH (m): 13605 13664 13709 13748 13752 13771 13767 13766 13757 13764 13747 13750 13724 13718 13694 150mb Temp (C): -58.9 -64.2 -65.0 -67.0 -66.0 -64.5 -63.8 -61.9 -64.2 -63.7 -63.4 -61.5 -61.8 -60.4 -59.9 150mb Dewpt(C): -84.5 -80.2 -79.8 -78.3 -78.1 -80.4 -81.6 -82.8 -80.6 -80.7 -81.9 -83.8 -82.7 -84.4 -84.0 150mb RH (%): 3 12 14 22 20 12 9 6 11 10 8 5 6 4 4 150mb Dir: 329 331 341 337 311 301 299 296 289 285 274 266 260 234 241 150mb Speed(kt): 49 59 55 46 39 39 33 29 30 25 25 29 28 28 42 100mb GPH (m): 16138 16182 16205 16221 16233 16261 16255 16268 16255 16271 16256 16262 16243 16247 16223 100mb Temp (C): -60.2 -60.1 -61.4 -63.1 -62.4 -64.0 -62.9 -62.6 -62.3 -61.4 -62.4 -62.0 -60.6 -61.2 -60.2 100mb Dewpt(C): -88.5 -88.5 -89.5 -90.2 -90.2 -88.9 -90.7 -90.4 -90.2 -89.5 -90.3 -89.9 -89.2 -89.3 -88.9 100mb RH (%): 2 2 2 2 2 3 2 2 2 2 2 2 2 2 2 100mb Dir: 328 322 319 321 322 319 311 293 307 293 272 289 271 257 254 100mb Speed(kt): 33 32 30 29 30 28 29 29 34 20 25 25 17 22 29