Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 0Z DEC 28, 2025 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 1004.4 1005.5 1008.8 1009.9 1008.5 1008.3 1007.3 1006.1 1004.7 1003.8 1001.6 1001.1 998.8 998.1 997.0 Mean SLP (mb): 1029.8 1031.0 1034.4 1035.6 1034.0 1033.9 1032.8 1031.5 1029.7 1029.0 1026.9 1026.3 1023.7 1023.4 1022.2 2m agl Tmp (F): 41.4 38.3 37.6 35.5 37.9 36.5 37.5 41.2 47.1 41.5 39.2 40.3 44.2 38.0 38.7 2m agl Dewpt(F): 37.5 37.0 36.6 34.3 31.8 29.5 29.2 31.9 33.6 28.1 27.3 28.7 30.1 26.8 26.2 2m agl RH (%): 86 95 96 95 78 75 71 69 59 58 62 63 57 64 60 10m agl Dir: 245 129 85 67 78 74 73 75 72 74 76 79 79 80 80 10m agl Spd(kt): 1 2 1 4 7 7 8 8 8 10 11 11 9 9 8 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 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Sfc CAPE (J/kg): 60.3 5.0 5.9 0.8 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 -5.8 -0.9 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): 160.0 105.3 117.6 42.5 85.9 121.8 146.3 108.5 91.1 127.9 191.2 176.3 154.5 158.6 140.8 Precip H20 (in): 0.49 0.54 0.45 0.42 0.48 0.61 0.58 0.52 0.51 0.57 0.39 0.33 0.34 0.34 0.33 Lifted Index(C): 15.1 16.1 18.8 14.3 14.8 17.4 16.7 13.4 12.5 12.0 9.2 10.4 10.9 10.6 10.2 700mb VV(-ub/s): -1.5 -1.6 -2.0 -2.4 -1.2 -1.6 -1.2 0.0 -0.9 -0.5 0.2 0.1 0.7 -0.4 0.7 Thk1000-500mb(m)5362.3 5371.5 5391.0 5440.3 5469.1 5498.3 5523.2 5541.7 5545.1 5564.1 5579.3 5585.7 5594.2 5590.7 5574.6 Thk1000-850mb(m)1298.1 1297.9 1297.3 1304.2 1316.4 1327.6 1337.9 1345.1 1349.3 1352.1 1353.2 1353.0 1355.4 1353.1 1350.1 Thk850-700mb(m):1511.8 1519.7 1523.5 1544.8 1552.1 1553.8 1560.2 1570.5 1575.5 1584.1 1590.5 1594.1 1595.5 1593.3 1589.0 SWEAT Index: 69.2 65.3 78.5 47.2 37.6 48.9 39.9 38.4 36.9 24.4 28.8 26.3 34.2 36.3 40.5 Total Totals Idx 28.3 27.9 14.6 30.2 28.0 18.2 20.8 27.9 30.0 29.8 34.9 32.5 30.0 31.4 33.1 Frz Hgt(ft amsl) 2557 2569 2325 3710 7598 7765 8452 10612 10710 11171 12236 12563 12553 12556 11819 0WetBlbHgt(amsl) 2374 2457 1983 1414 2790 4078 4743 7016 6724 7433 7007 6742 6872 6898 6603 Equil Prs (mb): 791 1006 1009 1010 1008 1008 1007 1006 1005 1004 1002 1001 999 998 997 Equil Hgt(amsl): 6898 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: 21.5 20.1 24.1 56.5 56.2 61.0 60.2 56.6 55.0 54.2 55.0 55.6 56.5 56.3 55.8 Showalter Index: 17.4 17.3 21.6 14.9 15.0 17.9 17.0 13.9 12.7 12.4 9.5 10.4 11.3 11.0 10.4 Cap Strength(C): 4.4 -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): 353 350 18 24 334 358 339 333 335 324 302 267 259 262 262 Storm Spd (kts): 17 15 16 11 11 13 12 11 10 8 10 10 12 11 12 2m HeatIndex(F): 41 38 38 36 38 37 38 41 47 42 39 40 44 38 39 2m WindChill(F): 41 38 38 32 32 30 31 41 47 42 32 40 44 31 32 1000mb GPH (m): 240 248 275 282 272 270 262 253 242 234 216 212 193 188 178 950mb GPH (m): 655 662 688 696 687 688 683 676 667 657 638 633 616 610 601 950mb Temp (C): 0.9 0.8 0.1 0.9 4.2 7.0 9.9 12.0 12.4 12.8 12.6 12.2 12.6 11.8 11.5 950mb Dewpt(C): 0.1 0.3 -0.9 -3.5 -4.4 -7.6 -6.9 -7.7 -8.2 -7.8 -7.1 -8.3 -7.9 -5.8 -5.8 950mb RH (%): 94 97 93 72 53 34 29 24 23 23 24 23 23 28 29 950mb Dir: 277 196 33 91 95 89 94 90 82 93 96 97 103 114 117 950mb Speed(kt): 4 2 1 8 11 12 12 12 14 18 21 23 18 13 9 900mb GPH (m): 1087 1095 1120 1130 1125 1131 1130 1127 1118 1111 1092 1087 1070 1063 1052 900mb Temp (C): -2.3 -2.1 -1.9 0.0 3.4 5.8 8.8 9.9 10.5 12.0 12.9 13.3 13.4 13.0 11.8 900mb Dewpt(C): -3.4 -2.4 -5.7 -10.3 -8.7 -7.2 -9.4 -10.7 -7.4 -4.2 -6.9 -8.8 -8.9 -8.9 -9.5 900mb RH (%): 92 97 75 46 41 38 26 22 27 32 24 20 20 21 21 900mb Dir: 302 311 332 65 105 67 46 58 30 72 102 112 205 176 195 900mb Speed(kt): 6 8 8 8 4 6 3 3 6 3 2 3 1 3 3 850mb GPH (m): 1538 1546 1572 1586 1588 1597 1600 1598 1591 1586 1569 1565 1548 1541 1528 850mb Temp (C): -5.6 -4.8 -3.6 -0.5 2.8 4.9 5.6 6.8 7.6 9.0 10.5 11.1 11.5 10.9 10.1 850mb Dewpt(C): -6.5 -8.0 -17.9 -5.7 -7.1 -15.1 -12.3 -6.4 -5.5 -6.4 -6.2 -8.3 -10.2 -8.2 -7.0 850mb RH (%): 93 79 32 68 48 22 26 38 39 33 30 25 21 25 29 850mb Dir: 282 312 330 36 1 7 348 356 4 27 280 146 258 258 243 850mb Speed(kt): 11 13 13 9 2 8 8 4 6 3 0 1 4 4 4 800mb GPH (m): 2011 2022 2050 2071 2077 2089 2092 2093 2087 2085 2071 2068 2052 2043 2029 800mb Temp (C): -8.1 -4.1 -4.9 -0.6 1.0 1.8 2.5 3.9 4.9 6.5 7.9 8.7 9.0 8.6 7.7 800mb Dewpt(C): -9.0 -24.9 -5.4 -7.5 -7.0 -11.2 -11.8 -3.7 -6.7 -6.7 -11.4 -15.7 -14.9 -13.0 -12.3 800mb RH (%): 94 18 96 60 55 37 34 57 43 38 24 16 17 20 23 800mb Dir: 283 335 332 6 347 330 322 324 330 349 228 213 243 250 241 800mb Speed(kt): 16 21 16 14 9 11 11 9 6 2 3 5 8 8 8 750mb GPH (m): 2513 2529 2557 2585 2593 2605 2610 2615 2611 2612 2600 2598 2582 2573 2558 750mb Temp (C): -6.2 -6.5 -5.3 -2.3 -1.2 -1.6 -0.2 1.8 3.1 4.6 5.6 6.1 6.4 6.0 5.2 750mb Dewpt(C): -22.1 -13.5 -9.4 -10.9 -10.4 -5.0 -6.1 -12.6 -15.5 -10.2 -19.1 -21.3 -19.8 -20.3 -18.1 750mb RH (%): 28 58 73 51 49 77 64 33 24 33 15 12 13 13 17 750mb Dir: 321 333 342 353 331 321 310 309 310 298 236 228 242 244 236 750mb Speed(kt): 27 19 20 16 12 17 13 14 9 4 7 10 11 11 13 700mb GPH (m): 3050 3066 3096 3131 3140 3151 3160 3169 3167 3170 3160 3159 3144 3134 3117 700mb Temp (C): -8.9 -8.3 -8.1 -3.5 -3.7 -4.3 -1.8 0.3 0.7 1.3 2.6 3.6 3.6 3.4 2.5 700mb Dewpt(C): -21.7 -10.5 -13.6 -13.8 -13.0 -9.7 -16.4 -24.2 -21.1 -8.9 -14.5 -27.0 -27.9 -26.4 -25.2 700mb RH (%): 35 84 65 45 49 66 32 14 18 46 27 9 8 9 11 700mb Dir: 324 335 345 350 304 318 300 305 296 273 251 236 238 245 234 700mb Speed(kt): 29 26 22 17 14 20 20 16 14 8 12 15 18 16 18 650mb GPH (m): 3620 3639 3668 3714 3723 3734 3747 3759 3757 3762 3755 3756 3741 3731 3712 650mb Temp (C): -11.2 -10.6 -9.7 -5.4 -5.3 -5.3 -3.5 -2.6 -3.4 -2.0 -0.1 0.5 0.6 0.5 -0.6 650mb Dewpt(C): -16.8 -12.5 -16.1 -22.5 -21.6 -7.7 -11.6 -18.6 -15.2 -12.8 -36.0 -33.2 -32.1 -30.5 -29.4 650mb RH (%): 63 86 60 25 27 83 53 28 40 44 5 6 7 8 9 650mb Dir: 324 331 353 344 283 312 300 306 296 273 268 246 233 244 235 650mb Speed(kt): 33 31 29 18 18 25 28 19 16 14 18 17 24 21 23 600mb GPH (m): 4232 4251 4285 4338 4348 4362 4377 4389 4385 4393 4389 4392 4378 4367 4347 600mb Temp (C): -12.8 -13.1 -10.9 -8.5 -7.9 -6.3 -5.7 -6.0 -7.1 -6.2 -4.7 -4.1 -3.8 -3.0 -4.1 600mb Dewpt(C): -17.5 -15.1 -20.9 -33.8 -32.5 -8.1 -6.5 -11.5 -19.7 -15.5 -28.1 -25.3 -17.1 -30.6 -32.4 600mb RH (%): 68 85 44 11 12 87 94 65 36 48 14 18 35 10 9 600mb Dir: 328 323 357 340 278 316 293 293 287 278 275 259 229 240 241 600mb Speed(kt): 40 32 38 21 23 32 27 26 19 18 23 18 26 28 25 550mb GPH (m): 4891 4909 4949 5005 5018 5038 5055 5065 5058 5068 5068 5071 5057 5048 5025 550mb Temp (C): -16.5 -16.6 -14.2 -13.6 -12.0 -9.5 -9.4 -10.1 -10.3 -10.1 -9.3 -9.7 -9.0 -8.3 -9.3 550mb Dewpt(C): -20.9 -18.3 -28.6 -29.2 -20.2 -11.8 -11.9 -12.3 -12.8 -12.3 -21.9 -18.8 -18.8 -29.6 -26.1 550mb RH (%): 69 87 29 26 51 83 82 84 82 84 35 48 45 17 25 550mb Dir: 333 311 353 334 290 313 292 283 280 276 283 268 236 236 239 550mb Speed(kt): 41 36 45 26 30 31 26 29 24 18 26 20 25 28 30 500mb GPH (m): 5602 5620 5666 5722 5741 5768 5785 5795 5787 5798 5795 5798 5787 5778 5753 500mb Temp (C): -20.2 -20.4 -18.0 -18.2 -16.1 -14.2 -13.8 -13.8 -13.9 -13.6 -15.3 -14.9 -14.3 -14.3 -15.0 500mb Dewpt(C): -24.7 -21.9 -40.5 -28.0 -17.9 -17.4 -17.9 -18.5 -16.6 -18.3 -18.0 -24.3 -30.6 -31.4 -30.8 500mb RH (%): 68 88 13 43 86 77 71 68 80 68 80 45 25 23 25 500mb Dir: 339 306 346 330 295 314 294 276 277 283 284 265 249 235 233 500mb Speed(kt): 47 40 53 30 33 32 24 30 25 19 29 24 26 28 33 450mb GPH (m): 6376 6393 6444 6502 6527 6560 6576 6587 6581 6589 6584 6589 6574 6566 6539 450mb Temp (C): -24.5 -24.6 -23.5 -23.0 -20.9 -19.4 -19.8 -18.6 -18.4 -20.3 -19.7 -19.2 -20.6 -20.9 -21.2 450mb Dewpt(C): -29.8 -26.7 -46.6 -35.4 -24.6 -24.0 -23.5 -28.2 -23.6 -24.9 -26.1 -33.0 -31.8 -25.9 -31.8 450mb RH (%): 62 83 11 32 72 67 73 43 64 67 58 29 37 65 39 450mb Dir: 339 306 343 334 313 315 297 279 268 273 279 270 249 237 237 450mb Speed(kt): 53 45 54 36 33 30 24 22 26 25 27 26 27 28 34 400mb GPH (m): 7223 7241 7292 7354 7387 7424 7439 7454 7447 7450 7447 7453 7435 7423 7396 400mb Temp (C): -30.5 -29.9 -31.1 -29.3 -26.7 -25.6 -26.4 -25.5 -25.6 -26.5 -25.8 -25.9 -27.0 -27.8 -27.9 400mb Dewpt(C): -36.4 -32.6 -46.3 -38.8 -33.8 -35.5 -29.9 -35.1 -32.2 -34.9 -36.1 -36.6 -36.2 -30.4 -37.3 400mb RH (%): 57 78 22 41 52 40 73 41 55 46 39 37 42 79 41 400mb Dir: 338 309 350 340 328 310 295 287 269 273 277 269 242 237 249 400mb Speed(kt): 55 52 62 49 37 30 24 18 27 33 29 29 25 33 38 350mb GPH (m): 8157 8177 8220 8290 8333 8374 8387 8404 8397 8398 8398 8403 8380 8368 8339 350mb Temp (C): -37.4 -36.9 -39.5 -37.0 -34.8 -33.9 -34.1 -34.0 -33.9 -33.8 -33.8 -33.5 -34.4 -34.8 -35.5 350mb Dewpt(C): -44.0 -40.4 -51.1 -50.5 -40.2 -42.6 -37.7 -40.4 -43.5 -38.2 -45.4 -49.2 -44.1 -40.2 -43.7 350mb RH (%): 52 71 30 25 59 42 70 54 39 65 32 21 39 59 44 350mb Dir: 338 316 348 348 334 315 295 302 280 277 281 249 242 236 251 350mb Speed(kt): 63 54 77 57 43 33 23 23 25 35 29 30 29 38 41 300mb GPH (m): 9203 9221 9256 9338 9388 9431 9446 9462 9456 9457 9456 9464 9438 9423 9390 300mb Temp (C): -45.8 -47.0 -48.2 -45.5 -44.1 -43.7 -43.2 -43.5 -43.3 -43.3 -43.4 -42.9 -43.2 -44.1 -44.7 300mb Dewpt(C): -52.3 -50.6 -57.2 -57.5 -49.1 -52.1 -46.9 -51.4 -53.9 -47.0 -58.2 -61.0 -56.6 -48.4 -49.3 300mb RH (%): 49 68 37 27 59 41 68 43 32 68 20 13 23 64 61 300mb Dir: 341 311 356 350 347 318 307 297 285 279 286 251 222 234 247 300mb Speed(kt): 73 53 84 69 51 34 31 32 26 36 35 27 38 39 42 250mb GPH (m): 10390 10399 10430 10529 10584 10632 10646 10660 10656 10654 10653 10663 10638 10618 10584 250mb Temp (C): -55.7 -57.3 -57.2 -54.4 -53.3 -53.0 -53.2 -53.9 -53.8 -54.2 -54.7 -54.3 -53.6 -54.0 -53.9 250mb Dewpt(C): -64.5 -60.9 -66.6 -60.1 -60.2 -61.9 -57.0 -63.3 -63.0 -57.9 -62.3 -62.7 -65.9 -61.1 -59.9 250mb RH (%): 35 66 32 51 45 36 65 33 34 65 41 37 23 44 50 250mb Dir: 338 314 5 345 346 330 299 288 289 266 303 259 219 241 236 250mb Speed(kt): 83 56 82 97 62 44 34 36 27 43 39 24 31 34 47 200mb GPH (m): 11771 11777 11815 11920 11986 12031 12042 12052 12047 12043 12039 12050 12030 12015 11982 200mb Temp (C): -66.0 -64.2 -63.1 -63.8 -63.5 -64.0 -65.2 -65.5 -65.4 -66.4 -66.3 -66.1 -65.4 -63.4 -63.1 200mb Dewpt(C): -74.0 -69.9 -73.6 -67.5 -69.4 -69.8 -68.7 -69.0 -69.7 -68.5 -68.2 -69.7 -70.2 -70.4 -71.2 200mb RH (%): 35 48 26 62 47 48 64 64 57 76 78 63 54 41 35 200mb Dir: 336 319 319 345 342 328 307 283 275 274 294 271 240 239 238 200mb Speed(kt): 89 49 73 81 65 42 37 29 42 51 39 27 30 37 52 150mb GPH (m): 13538 13569 13601 13666 13716 13761 13764 13778 13776 13784 13779 13784 13777 13772 13747 150mb Temp (C): -59.5 -58.8 -58.3 -63.4 -67.9 -68.2 -67.1 -64.9 -65.2 -63.3 -63.7 -65.4 -63.3 -62.5 -62.2 150mb Dewpt(C): -82.0 -84.6 -85.0 -82.3 -76.1 -77.0 -77.8 -79.6 -80.3 -81.3 -82.4 -81.6 -82.0 -83.4 -83.1 150mb RH (%): 5 3 3 8 33 31 24 14 13 9 8 11 8 6 6 150mb Dir: 328 326 340 347 340 313 296 298 296 287 282 275 261 262 251 150mb Speed(kt): 43 51 45 56 51 37 44 41 40 36 31 30 30 34 32 100mb GPH (m): 16081 16117 16139 16182 16199 16235 16243 16272 16268 16281 16270 16280 16280 16277 16259 100mb Temp (C): -59.4 -58.2 -59.6 -60.7 -61.0 -62.9 -63.8 -63.2 -62.9 -63.3 -63.7 -61.1 -63.7 -62.0 -61.7 100mb Dewpt(C): -92.7 -87.1 -88.2 -88.9 -89.1 -88.3 -86.7 -88.5 -88.4 -90.8 -91.2 -89.2 -91.3 -89.9 -89.7 100mb RH (%): 1 2 2 2 2 3 4 3 3 2 2 2 2 2 2 100mb Dir: 326 324 327 321 323 316 319 307 300 292 300 294 273 276 265 100mb Speed(kt): 27 30 35 31 32 24 32 28 31 31 34 19 24 20 24