Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z DEC 29, 2025 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 1007.6 1006.9 1004.6 1003.1 1000.7 999.4 997.4 996.8 995.9 994.4 990.2 987.6 984.5 984.3 985.0 Mean SLP (mb): 1033.3 1032.6 1030.0 1028.6 1026.1 1024.8 1022.5 1022.0 1021.2 1019.5 1014.8 1012.4 1009.4 1009.2 1009.8 2m agl Tmp (F): 34.8 35.2 39.7 35.9 35.0 37.6 41.7 36.9 36.8 40.4 45.4 40.4 39.6 38.7 41.8 2m agl Dewpt(F): 26.9 25.2 27.0 24.7 24.8 25.9 28.2 26.2 26.5 29.1 33.2 29.5 30.1 37.8 41.4 2m agl RH (%): 73 66 60 63 66 62 58 65 66 64 62 65 68 97 98 10m agl Dir: 81 77 77 76 78 80 81 81 80 79 79 81 77 106 172 10m agl Spd(kt): 9 11 11 11 12 12 10 9 9 8 8 8 7 4 4 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 0.17 0.28 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 0.18 0.45 Sfc CAPE (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 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 -0.3 0-3km Hel(J/kg): 92.9 138.8 65.4 182.3 191.9 152.4 164.8 179.6 168.6 132.2 110.4 85.9 270.2 145.2 237.0 Precip H20 (in): 0.72 0.59 0.50 0.39 0.44 0.39 0.40 0.51 0.47 0.39 0.39 0.61 0.87 0.84 0.77 Lifted Index(C): 13.4 14.0 10.9 10.1 10.7 11.4 10.7 10.8 9.7 11.2 12.1 14.2 13.3 12.4 9.3 700mb VV(-ub/s): -0.4 -3.1 -1.4 -0.1 -0.9 -0.1 1.5 1.2 -0.1 -0.9 0.7 -0.7 2.5 5.3 4.8 Thk1000-500mb(m)5525.7 5535.0 5545.9 5561.2 5576.7 5588.0 5589.7 5576.8 5562.2 5543.4 5540.3 5525.8 5507.6 5466.9 5439.5 Thk1000-850mb(m)1324.9 1325.8 1335.7 1339.4 1342.6 1345.2 1347.0 1343.9 1340.9 1342.7 1347.2 1340.3 1323.1 1316.3 1323.0 Thk850-700mb(m):1564.8 1576.4 1580.7 1589.7 1597.6 1599.5 1598.2 1593.4 1586.3 1579.3 1575.4 1568.4 1561.0 1545.5 1536.9 SWEAT Index: 49.6 37.0 49.9 30.4 28.8 16.0 32.9 43.9 49.7 52.7 46.6 64.1 52.1 77.4 141.2 Total Totals Idx 29.0 27.1 32.7 34.1 32.2 30.0 32.1 32.1 32.7 32.9 29.9 25.4 28.1 31.5 37.8 Frz Hgt(ft amsl) 8865 11294 11644 11881 12181 12594 12718 12050 12339 11449 10540 8899 9034 5136 4901 0WetBlbHgt(amsl) 6258 7690 7170 6884 6601 6493 6614 8778 6949 5492 5439 4993 8914 4926 4788 Equil Prs (mb): 1008 1007 1005 1003 1001 999 997 997 996 994 990 988 985 984 985 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: 57.6 55.4 54.1 53.9 54.4 55.3 55.5 53.3 54.2 53.6 52.7 56.7 50.2 23.3 24.2 Showalter Index: 13.5 14.4 11.3 10.2 10.8 11.5 10.7 11.0 11.1 11.0 12.5 15.0 14.9 13.3 10.1 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): 13 24 15 317 306 205 240 248 248 237 238 213 232 246 284 Storm Spd (kts): 12 11 12 10 9 8 11 13 13 12 10 14 19 17 20 2m HeatIndex(F): 35 35 40 36 35 38 42 37 37 40 45 40 40 39 42 2m WindChill(F): 27 26 32 27 26 29 42 29 30 40 45 40 34 35 42 1000mb GPH (m): 264 259 241 228 208 199 182 177 170 158 122 101 76 74 80 950mb GPH (m): 678 672 658 645 625 616 602 597 591 580 546 521 493 491 499 950mb Temp (C): 3.8 4.7 7.2 8.3 9.0 9.5 10.7 10.5 9.4 10.4 12.1 10.1 5.3 3.3 5.9 950mb Dewpt(C): -2.4 -4.9 -5.3 -4.5 -5.0 -5.7 -5.4 -3.5 -0.6 -3.5 -5.3 -3.1 -0.4 3.0 5.6 950mb RH (%): 63 50 40 40 36 33 31 37 49 37 29 39 66 98 98 950mb Dir: 95 93 91 95 96 96 102 112 125 125 102 102 87 159 205 950mb Speed(kt): 24 29 28 29 29 28 21 15 9 7 12 18 18 9 16 900mb GPH (m): 1120 1115 1104 1093 1075 1067 1053 1046 1039 1029 997 970 936 929 941 900mb Temp (C): 6.9 7.5 9.2 10.4 11.3 12.1 11.5 10.5 9.3 9.4 10.1 9.2 5.5 2.8 3.5 900mb Dewpt(C): -4.2 -5.8 -5.8 -5.5 -6.5 -6.9 -6.7 -7.8 -7.3 -3.8 -5.7 -5.1 -2.9 2.4 3.3 900mb RH (%): 45 38 34 32 28 26 27 27 30 39 32 35 55 98 98 900mb Dir: 87 91 75 115 128 137 180 192 205 208 207 192 84 210 233 900mb Speed(kt): 13 11 14 11 8 6 5 8 11 11 6 5 5 14 27 850mb GPH (m): 1589 1585 1576 1568 1551 1544 1529 1521 1511 1500 1469 1441 1399 1391 1403 850mb Temp (C): 6.4 6.6 7.6 9.3 10.6 11.2 10.8 9.8 8.2 7.6 7.7 6.6 2.0 0.4 0.4 850mb Dewpt(C): -4.2 -6.7 -4.2 -5.7 -7.1 -9.3 -8.4 -7.9 -7.7 -9.1 -9.3 -8.8 -2.3 0.1 0.1 850mb RH (%): 46 38 43 34 28 23 25 28 31 29 29 32 73 98 98 850mb Dir: 24 12 30 94 177 179 226 219 215 217 217 192 88 223 247 850mb Speed(kt): 13 8 12 4 3 3 7 8 11 15 12 9 4 23 27 800mb GPH (m): 2083 2080 2073 2068 2054 2047 2032 2022 2009 1997 1965 1936 1887 1876 1887 800mb Temp (C): 3.3 4.6 5.7 8.0 9.4 9.6 9.4 8.3 6.8 5.8 4.8 4.1 1.0 -0.7 -1.6 800mb Dewpt(C): -6.8 -4.5 -5.8 -12.0 -20.7 -22.6 -18.3 -11.7 -8.9 -14.5 -11.3 -10.4 -0.1 -1.0 -1.8 800mb RH (%): 47 51 43 23 10 8 12 23 31 22 30 34 92 98 98 800mb Dir: 11 1 7 52 240 224 224 233 223 217 219 186 154 225 254 800mb Speed(kt): 11 7 13 2 3 4 10 11 11 16 13 12 14 24 29 750mb GPH (m): 2603 2604 2599 2597 2585 2579 2564 2552 2537 2522 2488 2457 2407 2390 2398 750mb Temp (C): 0.4 3.0 3.9 5.6 7.0 7.3 7.1 5.9 4.9 3.9 3.2 1.5 1.3 -2.2 -4.7 750mb Dewpt(C): -4.8 -4.4 -14.2 -22.2 -21.8 -22.5 -19.6 -5.9 -8.3 -19.6 -21.8 -14.9 1.1 -2.5 -5.0 750mb RH (%): 68 58 25 11 11 10 13 42 37 16 14 28 98 98 97 750mb Dir: 318 349 343 300 236 230 223 230 225 218 217 187 200 222 259 750mb Speed(kt): 4 8 10 2 5 8 13 15 14 16 14 14 26 25 30 700mb GPH (m): 3154 3161 3157 3157 3148 3143 3127 3114 3097 3080 3044 3009 2960 2936 2940 700mb Temp (C): -2.0 1.2 1.9 2.7 4.2 4.9 4.4 3.6 2.7 1.8 0.9 -1.8 -0.8 -3.9 -6.0 700mb Dewpt(C): -5.2 -7.4 -23.3 -26.4 -27.3 -30.3 -24.1 -9.7 -10.7 -28.4 -21.1 -9.5 -1.1 -4.3 -6.7 700mb RH (%): 78 52 14 10 8 6 11 37 37 9 18 55 98 97 95 700mb Dir: 291 343 310 284 257 219 224 228 226 220 213 176 217 219 263 700mb Speed(kt): 11 15 10 8 6 11 17 20 20 18 17 15 32 27 30 650mb GPH (m): 3743 3754 3751 3752 3746 3743 3726 3711 3694 3674 3635 3595 3550 3520 3517 650mb Temp (C): -2.4 -1.3 -1.0 -0.8 -0.2 0.8 1.1 -0.3 0.5 -0.8 -2.4 -5.0 -3.7 -5.7 -7.8 650mb Dewpt(C): -5.3 -19.3 -22.2 -28.7 -9.5 -13.6 -27.0 -9.6 -31.4 -32.2 -26.1 -8.4 -4.1 -6.3 -8.6 650mb RH (%): 80 24 18 10 50 33 10 49 7 7 14 77 98 96 94 650mb Dir: 302 317 290 278 281 218 223 227 226 214 212 158 217 219 266 650mb Speed(kt): 19 16 14 12 10 11 18 23 28 21 15 15 34 29 30 600mb GPH (m): 4377 4387 4384 4385 4379 4378 4363 4346 4329 4306 4265 4220 4179 4144 4138 600mb Temp (C): -4.0 -5.4 -5.1 -4.8 -5.5 -4.7 -3.7 -4.0 -4.4 -5.9 -6.4 -7.6 -6.4 -8.1 -9.6 600mb Dewpt(C): -7.7 -13.6 -21.1 -28.9 -9.7 -9.9 -12.9 -24.0 -26.6 -16.7 -23.2 -8.6 -6.8 -8.9 -11.0 600mb RH (%): 76 53 28 14 72 67 49 20 16 42 25 93 97 94 89 600mb Dir: 301 304 281 273 286 236 231 223 226 209 214 159 213 222 270 600mb Speed(kt): 28 19 18 17 14 12 18 23 29 22 13 19 39 28 33 550mb GPH (m): 5058 5064 5060 5062 5057 5058 5043 5026 5007 4979 4939 4896 4855 4816 4804 550mb Temp (C): -8.5 -9.6 -10.5 -9.7 -9.9 -9.2 -9.0 -9.0 -10.1 -11.8 -11.4 -9.5 -10.0 -11.3 -14.4 550mb Dewpt(C): -12.3 -16.1 -16.6 -23.5 -15.6 -19.8 -17.1 -23.2 -17.0 -17.7 -20.7 -10.5 -10.9 -12.5 -17.3 550mb RH (%): 74 59 61 32 63 42 52 31 57 61 46 92 93 91 79 550mb Dir: 305 289 281 275 283 229 229 230 225 206 217 201 212 219 269 550mb Speed(kt): 25 20 22 21 20 9 19 26 27 21 13 35 42 30 35 500mb GPH (m): 5790 5794 5786 5789 5785 5787 5772 5754 5732 5701 5662 5626 5584 5541 5519 500mb Temp (C): -13.4 -13.6 -14.7 -15.2 -14.4 -14.0 -14.8 -15.1 -16.1 -17.2 -15.8 -13.9 -14.2 -15.5 -18.7 500mb Dewpt(C): -17.4 -18.6 -17.9 -18.9 -24.3 -27.4 -21.2 -20.6 -18.1 -25.6 -30.3 -15.3 -15.8 -17.1 -21.3 500mb RH (%): 72 66 77 74 43 32 59 64 85 49 28 89 88 88 80 500mb Dir: 318 279 284 272 287 226 229 230 221 203 217 213 213 214 258 500mb Speed(kt): 23 20 25 22 23 10 20 27 28 22 22 46 43 30 35 450mb GPH (m): 6583 6586 6577 6577 6574 6576 6561 6540 6516 6484 6450 6420 6375 6328 6296 450mb Temp (C): -19.1 -19.2 -19.1 -20.2 -20.2 -20.3 -20.5 -21.6 -21.9 -22.2 -19.7 -19.0 -19.7 -21.0 -24.0 450mb Dewpt(C): -24.1 -25.7 -24.6 -27.7 -31.2 -29.2 -25.5 -24.1 -25.9 -34.4 -22.0 -20.9 -21.7 -23.0 -27.1 450mb RH (%): 65 57 62 52 38 46 65 81 71 33 82 85 85 84 76 450mb Dir: 315 270 272 277 288 246 233 222 223 211 221 217 213 207 244 450mb Speed(kt): 19 20 25 29 24 13 22 28 29 27 35 51 47 32 35 400mb GPH (m): 7447 7450 7442 7439 7436 7438 7420 7397 7370 7340 7313 7285 7238 7187 7145 400mb Temp (C): -25.8 -26.0 -25.7 -26.4 -25.7 -26.0 -27.0 -27.6 -29.1 -27.3 -26.1 -25.3 -25.7 -27.4 -29.8 400mb Dewpt(C): -31.5 -33.0 -32.1 -30.9 -37.5 -38.1 -34.6 -33.9 -37.0 -29.8 -29.7 -27.8 -28.1 -30.2 -33.9 400mb RH (%): 59 52 56 66 33 32 49 56 47 79 73 80 81 78 68 400mb Dir: 304 278 266 269 285 244 232 215 223 222 216 218 212 205 224 400mb Speed(kt): 18 20 25 35 29 18 25 31 32 34 49 52 47 36 39 350mb GPH (m): 8396 8400 8392 8389 8389 8389 8367 8341 8309 8287 8264 8238 8191 8134 8081 350mb Temp (C): -34.0 -33.5 -33.8 -33.5 -33.2 -32.9 -34.6 -35.1 -35.9 -35.2 -33.3 -33.0 -33.0 -34.6 -37.3 350mb Dewpt(C): -39.5 -41.5 -38.6 -37.8 -48.4 -51.7 -38.2 -46.0 -44.4 -38.8 -36.4 -36.2 -36.1 -38.0 -41.1 350mb RH (%): 59 46 63 66 22 15 71 33 43 70 74 74 74 72 68 350mb Dir: 302 290 273 273 297 218 232 213 224 232 224 218 205 199 210 350mb Speed(kt): 23 22 29 38 18 24 27 31 39 40 50 51 43 42 37 300mb GPH (m): 9455 9460 9453 9450 9449 9452 9425 9398 9362 9341 9326 9300 9253 9189 9128 300mb Temp (C): -43.3 -43.1 -42.5 -42.7 -43.2 -42.7 -42.7 -43.0 -44.1 -43.6 -42.9 -43.1 -43.0 -44.4 -45.0 300mb Dewpt(C): -47.6 -48.8 -46.4 -46.2 -54.6 -59.0 -48.7 -56.5 -49.8 -52.2 -46.4 -46.5 -46.4 -47.8 -49.0 300mb RH (%): 64 55 67 69 29 17 53 23 54 40 70 70 70 70 66 300mb Dir: 304 294 279 284 314 221 228 210 231 245 225 221 203 178 200 300mb Speed(kt): 26 23 33 41 14 26 33 37 52 68 56 52 49 54 43 250mb GPH (m): 10653 10661 10656 10653 10648 10653 10628 10600 10558 10539 10524 10498 10450 10382 10319 250mb Temp (C): -53.4 -53.3 -53.0 -53.1 -53.7 -53.5 -52.8 -52.6 -54.0 -54.0 -54.3 -53.3 -53.9 -53.8 -53.5 250mb Dewpt(C): -57.2 -57.0 -56.7 -56.8 -61.9 -60.2 -58.8 -64.1 -58.2 -57.7 -58.0 -57.1 -57.5 -57.4 -61.1 250mb RH (%): 65 66 66 66 38 46 50 26 62 65 66 65 66 66 41 250mb Dir: 311 296 288 284 291 251 239 206 224 237 227 225 201 193 206 250mb Speed(kt): 32 28 40 42 33 30 38 35 62 80 71 67 53 50 47 200mb GPH (m): 12052 12057 12053 12047 12041 12045 12027 12004 11959 11939 11922 11900 11852 11798 11742 200mb Temp (C): -64.3 -65.2 -65.1 -65.7 -65.9 -65.7 -64.6 -63.0 -61.5 -61.5 -61.9 -62.1 -62.1 -56.7 -54.7 200mb Dewpt(C): -69.0 -68.4 -67.8 -69.4 -68.5 -69.3 -68.1 -68.2 -72.2 -71.3 -69.4 -66.3 -65.6 -74.6 -75.9 200mb RH (%): 55 67 71 62 72 63 65 52 26 29 39 59 65 10 7 200mb Dir: 317 282 281 281 297 267 244 222 222 238 236 218 210 214 227 200mb Speed(kt): 36 33 38 44 26 27 31 36 45 61 67 71 57 49 48 150mb GPH (m): 13778 13794 13793 13790 13782 13784 13773 13772 13741 13726 13699 13684 13647 13624 13589 150mb Temp (C): -69.0 -66.0 -65.4 -62.7 -63.9 -65.0 -63.8 -61.7 -61.0 -59.7 -61.3 -60.0 -58.8 -56.0 -54.8 150mb Dewpt(C): -74.0 -80.0 -78.3 -80.7 -80.5 -80.7 -81.7 -83.9 -83.2 -80.1 -80.5 -85.7 -83.0 -85.4 -84.9 150mb RH (%): 51 15 18 9 11 12 9 5 5 7 8 3 4 2 2 150mb Dir: 312 304 298 282 273 264 257 246 233 227 232 245 228 233 228 150mb Speed(kt): 43 46 37 31 32 29 29 37 30 31 44 35 33 35 42 100mb GPH (m): 16253 16266 16271 16284 16264 16284 16278 16280 16255 16254 16224 16217 16184 16175 16153 100mb Temp (C): -62.5 -64.3 -63.4 -63.2 -63.6 -63.3 -62.7 -62.2 -61.9 -60.6 -60.1 -60.1 -59.7 -58.8 -59.0 100mb Dewpt(C): -85.9 -87.3 -86.6 -88.5 -86.8 -90.1 -90.5 -90.1 -89.9 -88.9 -88.5 -88.8 -92.5 -91.8 -92.0 100mb RH (%): 4 4 4 3 4 2 2 2 2 2 2 2 1 1 1 100mb Dir: 325 321 309 304 309 277 280 266 261 235 255 236 250 242 233 100mb Speed(kt): 28 26 32 30 27 19 26 14 22 15 22 23 25 19 27