Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z DEC 8, 2025 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 998.4 995.4 993.6 991.5 994.7 998.0 994.0 993.0 994.2 995.1 995.2 995.2 995.8 997.3 997.4 Mean SLP (mb): 1023.0 1019.9 1018.0 1016.0 1019.4 1023.0 1018.7 1017.4 1018.8 1019.7 1019.7 1019.8 1020.4 1021.9 1022.0 2m agl Tmp (F): 51.4 53.2 53.1 51.1 50.5 45.8 47.4 52.1 51.4 51.0 52.1 50.9 51.0 51.1 51.2 2m agl Dewpt(F): 50.5 52.5 52.3 50.3 50.1 44.6 46.4 51.2 50.5 50.4 51.2 50.2 50.5 50.6 50.8 2m agl RH (%): 97 97 97 97 98 95 96 97 97 98 97 98 98 98 98 10m agl Dir: 154 209 211 209 278 147 116 216 218 215 213 214 218 227 195 10m agl Spd(kt): 2 13 14 15 6 3 7 14 12 9 11 9 7 3 3 6hr Precip (in): 0.00 0.24 0.92 0.58 1.01 0.37 0.25 0.62 0.41 0.62 0.30 0.34 0.37 0.39 0.26 AccumPrecip(in): 0.00 0.24 1.17 1.75 2.76 3.13 3.38 4.00 4.41 5.03 5.33 5.67 6.04 6.43 6.69 Sfc CAPE (J/kg): 37.2 0.2 0.0 0.0 15.5 2.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 Sfc CINH (J/kg): -5.3 -6.0 0.0 0.0 -0.6 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): 249.6 416.3 462.9 703.0 259.5 216.6 594.9 489.4 447.8 332.4 359.2 303.9 271.6 266.7 216.3 Precip H20 (in): 0.78 1.12 1.17 1.23 1.08 0.97 1.16 1.16 1.11 1.08 1.09 1.06 1.03 1.02 1.01 Lifted Index(C): 7.1 4.2 6.5 4.6 10.6 12.0 3.9 1.0 3.2 4.4 4.5 6.3 5.0 5.5 6.2 700mb VV(-ub/s): 3.1 13.3 23.3 33.7 19.5 3.7 12.0 13.0 19.4 8.9 2.8 1.3 0.8 1.3 -1.9 Thk1000-500mb(m)5484.1 5523.8 5540.4 5558.0 5514.5 5492.6 5540.4 5551.8 5548.1 5550.5 5543.3 5543.3 5529.1 5525.6 5527.8 Thk1000-850mb(m)1340.5 1348.8 1346.8 1344.9 1336.1 1324.8 1337.9 1350.3 1347.4 1346.0 1347.8 1346.2 1345.9 1343.7 1344.8 Thk850-700mb(m):1554.1 1562.5 1570.8 1580.5 1559.9 1552.6 1579.2 1581.1 1582.5 1579.6 1571.4 1576.1 1570.1 1568.6 1565.9 SWEAT Index: 271.9 321.5 235.2 381.3 152.5 114.3 333.6 288.2 262.4 237.6 237.2 218.4 222.4 195.3 172.0 Total Totals Idx 39.1 44.2 39.2 41.7 33.3 32.2 41.5 48.2 44.4 42.2 43.4 39.7 42.5 41.2 40.5 Frz Hgt(ft amsl) 8373 7898 9449 10283 8439 6820 9921 10178 10177 9807 9209 9783 8993 8821 8655 0WetBlbHgt(amsl) 5929 7784 9321 10219 8305 6811 9833 10045 10083 9720 8747 9690 8931 8733 8539 Equil Prs (mb): 826 995 994 991 838 998 994 993 994 995 995 995 996 997 997 Equil Hgt(amsl): 5774 26 26 26 5295 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: 31.3 32.3 21.6 19.1 13.7 22.6 14.4 23.4 15.9 14.3 14.2 12.6 21.3 16.8 20.3 Showalter Index: 8.2 4.2 6.8 4.7 11.3 12.3 5.5 0.6 3.2 4.4 3.9 6.0 4.6 5.7 6.3 Cap Strength(C): 2.7 -999.9 -999.9 -999.9 0.2 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 Storm Dir (deg): 289 286 291 285 303 300 298 292 298 294 296 296 300 307 312 Storm Spd (kts): 26 36 38 44 33 24 34 41 37 34 33 30 29 27 23 2m HeatIndex(F): 51 53 53 51 51 46 47 52 51 51 52 51 51 51 51 2m WindChill(F): 51 53 53 51 51 46 47 52 51 51 52 51 51 51 51 1000mb GPH (m): 190 165 150 132 160 187 154 145 155 163 163 164 169 181 182 950mb GPH (m): 617 594 578 559 586 608 578 572 582 589 591 590 595 607 609 950mb Temp (C): 9.3 10.2 9.9 8.8 8.3 5.4 7.8 9.5 8.9 8.7 9.3 9.0 9.3 8.9 9.1 950mb Dewpt(C): 8.9 10.0 9.8 8.5 8.1 4.5 7.6 9.3 8.7 8.5 9.0 8.9 9.2 8.8 8.9 950mb RH (%): 98 99 99 98 98 94 98 99 99 99 98 99 99 99 98 950mb Dir: 208 216 219 210 280 210 168 220 223 225 220 223 229 230 222 950mb Speed(kt): 13 33 32 35 17 3 17 34 30 27 28 26 25 18 18 900mb GPH (m): 1064 1043 1026 1005 1031 1049 1023 1019 1029 1037 1038 1038 1043 1054 1056 900mb Temp (C): 6.5 8.7 7.8 7.7 5.4 4.0 6.4 8.7 8.7 8.5 8.7 8.5 7.7 7.6 7.8 900mb Dewpt(C): 6.2 8.4 7.5 7.4 5.2 3.0 6.1 8.6 8.3 8.1 8.5 8.3 7.4 7.3 7.5 900mb RH (%): 98 98 98 98 98 93 98 99 98 98 98 98 98 98 98 900mb Dir: 225 234 236 220 296 259 213 235 242 250 244 253 256 251 258 900mb Speed(kt): 20 49 46 56 17 7 26 50 46 40 40 34 27 24 19 850mb GPH (m): 1530 1514 1497 1477 1496 1512 1492 1495 1503 1509 1511 1510 1515 1524 1527 850mb Temp (C): 3.3 6.0 5.7 7.5 2.8 1.9 6.2 9.0 7.7 7.4 7.4 6.8 6.8 6.0 5.6 850mb Dewpt(C): 2.8 5.7 5.5 7.2 2.6 1.7 5.9 8.7 7.4 7.2 7.2 6.5 6.5 5.8 5.3 850mb RH (%): 96 97 99 98 98 98 98 98 98 98 99 98 98 98 98 850mb Dir: 232 241 251 242 283 278 241 254 265 260 255 259 261 257 275 850mb Speed(kt): 30 48 51 62 17 10 37 53 47 37 39 38 41 31 24 800mb GPH (m): 2019 2008 1992 1975 1986 2000 1989 1995 2001 2007 2008 2006 2010 2020 2021 800mb Temp (C): 0.4 3.0 3.6 5.5 1.0 0.3 6.0 5.6 6.1 5.9 4.0 4.5 4.0 3.9 3.1 800mb Dewpt(C): -5.8 1.9 3.3 5.2 0.7 0.3 5.9 5.3 5.8 5.5 3.7 4.2 3.7 3.6 2.8 800mb RH (%): 63 93 98 98 98 100 99 98 98 98 98 98 98 98 98 800mb Dir: 234 246 255 253 268 266 265 257 270 258 260 256 261 269 270 800mb Speed(kt): 31 48 54 59 27 16 44 54 49 46 40 40 39 37 26 750mb GPH (m): 2536 2527 2514 2501 2504 2516 2516 2520 2529 2533 2529 2530 2533 2542 2542 750mb Temp (C): 0.1 -0.9 1.3 3.1 0.2 -1.4 2.7 2.6 3.5 2.7 1.0 2.5 1.4 1.1 0.6 750mb Dewpt(C): -34.3 -1.2 1.0 2.9 0.0 -1.6 2.4 2.0 3.3 2.5 0.0 2.2 1.2 0.7 0.2 750mb RH (%): 6 98 98 99 98 99 98 96 98 98 93 98 98 97 97 750mb Dir: 248 250 260 255 264 260 275 261 265 256 266 269 274 279 282 750mb Speed(kt): 34 47 55 62 41 27 50 56 51 46 42 39 41 36 27 700mb GPH (m): 3084 3077 3067 3057 3056 3065 3071 3076 3085 3089 3083 3086 3085 3093 3093 700mb Temp (C): -3.1 -1.5 -0.7 0.4 -1.5 -2.5 -0.2 0.2 0.1 -0.6 -0.9 -0.6 -2.3 -2.9 -2.8 700mb Dewpt(C): -19.7 -1.8 -1.0 0.2 -1.8 -2.7 -0.5 -0.3 -0.3 -0.9 -1.9 -0.9 -2.6 -3.4 -3.7 700mb RH (%): 27 98 98 98 98 98 98 97 97 98 93 98 98 97 93 700mb Dir: 253 262 266 261 270 259 273 266 271 263 276 276 279 283 293 700mb Speed(kt): 39 52 58 65 54 40 52 58 53 47 46 40 38 32 31 650mb GPH (m): 3666 3665 3657 3649 3645 3651 3662 3666 3675 3677 3673 3674 3670 3677 3680 650mb Temp (C): -7.4 -4.0 -3.3 -2.9 -3.4 -4.5 -3.0 -3.8 -3.7 -4.3 -3.4 -4.2 -5.8 -5.8 -3.8 650mb Dewpt(C): -12.9 -4.4 -3.6 -3.1 -3.6 -5.1 -3.3 -4.9 -4.2 -4.8 -5.2 -5.6 -6.9 -7.3 -7.7 650mb RH (%): 65 97 97 98 98 96 98 92 96 96 87 91 92 89 74 650mb Dir: 258 269 271 267 266 269 274 273 277 272 280 281 283 290 296 650mb Speed(kt): 47 60 60 68 66 49 59 63 53 48 50 43 42 38 38 600mb GPH (m): 4285 4293 4287 4280 4274 4279 4292 4294 4303 4305 4301 4302 4295 4302 4307 600mb Temp (C): -10.4 -7.5 -6.9 -5.7 -7.0 -6.9 -6.2 -6.8 -7.3 -5.9 -6.2 -7.0 -7.1 -6.2 -7.1 600mb Dewpt(C): -11.2 -8.0 -7.2 -6.0 -7.2 -7.9 -6.5 -11.7 -8.6 -10.0 -14.7 -14.1 -19.2 -24.1 -14.5 600mb RH (%): 93 96 97 98 98 93 98 68 91 73 51 57 38 23 56 600mb Dir: 270 270 273 269 268 271 273 277 282 276 283 278 280 286 287 600mb Speed(kt): 56 62 59 70 71 60 64 69 62 56 59 50 51 53 44 550mb GPH (m): 4952 4965 4961 4959 4947 4953 4967 4969 4977 4983 4978 4976 4970 4978 4981 550mb Temp (C): -12.7 -11.5 -10.3 -8.9 -11.3 -11.0 -10.6 -10.1 -10.5 -8.8 -9.4 -9.7 -9.8 -9.8 -9.8 550mb Dewpt(C): -14.6 -12.3 -11.1 -9.2 -11.5 -12.0 -11.4 -15.9 -20.2 -25.6 -19.3 -31.6 -24.7 -14.6 -21.6 550mb RH (%): 86 94 94 98 98 92 94 63 45 25 45 15 29 68 38 550mb Dir: 288 272 275 273 276 276 282 276 280 278 276 274 278 289 292 550mb Speed(kt): 56 62 60 75 76 69 68 72 69 68 65 57 57 59 49 500mb GPH (m): 5674 5689 5690 5690 5674 5680 5694 5696 5703 5714 5707 5707 5698 5706 5710 500mb Temp (C): -16.6 -16.2 -14.0 -13.5 -14.0 -14.4 -14.7 -15.2 -14.6 -13.8 -14.4 -13.2 -14.6 -14.7 -14.8 500mb Dewpt(C): -19.3 -17.3 -15.1 -14.0 -14.2 -15.7 -15.8 -24.7 -29.7 -24.6 -17.3 -37.4 -20.2 -22.3 -21.3 500mb RH (%): 80 92 91 96 98 90 92 45 27 40 79 12 63 53 58 500mb Dir: 284 276 282 276 280 280 288 280 279 279 271 275 279 289 293 500mb Speed(kt): 56 61 67 76 87 75 73 77 78 77 72 63 63 64 60 450mb GPH (m): 6459 6474 6482 6484 6467 6473 6485 6486 6493 6504 6499 6499 6487 6495 6499 450mb Temp (C): -21.1 -21.1 -19.3 -19.0 -18.9 -18.2 -19.6 -19.0 -19.3 -19.5 -19.2 -19.5 -20.1 -20.4 -20.1 450mb Dewpt(C): -25.2 -22.5 -20.9 -20.0 -19.7 -21.4 -21.6 -20.2 -42.9 -29.7 -21.0 -23.0 -23.0 -26.6 -23.9 450mb RH (%): 70 89 87 92 94 76 84 90 11 41 86 74 78 58 72 450mb Dir: 283 281 286 276 277 280 289 283 278 278 273 276 280 287 288 450mb Speed(kt): 63 67 76 78 92 84 73 82 80 78 74 65 69 68 64 400mb GPH (m): 7317 7334 7348 7348 7333 7342 7348 7352 7356 7368 7362 7362 7350 7355 7362 400mb Temp (C): -27.6 -26.3 -24.8 -25.4 -25.0 -24.4 -25.6 -25.1 -26.1 -25.8 -26.2 -25.8 -25.4 -26.9 -26.0 400mb Dewpt(C): -32.8 -28.8 -27.1 -27.4 -26.6 -27.8 -28.0 -27.5 -36.3 -39.1 -28.8 -28.5 -28.2 -30.8 -30.4 400mb RH (%): 62 80 82 84 87 74 81 81 39 29 79 79 78 70 67 400mb Dir: 286 285 287 278 273 279 291 280 281 275 277 272 280 286 284 400mb Speed(kt): 61 74 78 78 90 90 81 79 87 81 75 70 74 68 66 350mb GPH (m): 8262 8285 8305 8304 8289 8300 8302 8308 8308 8319 8311 8313 8302 8305 8312 350mb Temp (C): -35.0 -33.3 -31.3 -32.2 -32.1 -31.4 -33.1 -32.4 -32.5 -33.5 -34.0 -33.6 -33.7 -33.3 -34.3 350mb Dewpt(C): -39.1 -36.4 -34.2 -34.9 -34.8 -34.6 -36.3 -35.5 -35.6 -37.6 -37.3 -37.1 -37.2 -40.6 -39.2 350mb RH (%): 67 74 76 77 77 74 74 74 74 68 73 72 72 49 62 350mb Dir: 286 287 288 280 276 282 291 294 279 280 276 273 279 283 285 350mb Speed(kt): 64 75 85 86 93 90 80 88 85 86 77 75 78 66 67 300mb GPH (m): 9318 9348 9377 9373 9359 9370 9367 9373 9375 9383 9372 9374 9364 9366 9372 300mb Temp (C): -43.7 -41.8 -40.4 -40.7 -40.7 -41.0 -41.3 -42.1 -41.5 -42.0 -42.3 -42.4 -42.4 -42.5 -42.6 300mb Dewpt(C): -47.7 -45.4 -43.6 -43.9 -43.9 -46.0 -44.8 -45.4 -45.2 -46.2 -46.0 -46.1 -46.1 -48.1 -47.5 300mb RH (%): 66 69 72 72 72 60 70 71 68 65 68 68 68 56 60 300mb Dir: 291 287 284 281 274 279 283 294 280 274 276 274 281 281 285 300mb Speed(kt): 73 78 86 91 96 90 88 93 85 82 80 79 81 74 69 250mb GPH (m): 10514 10556 10590 10585 10572 10579 10575 10575 10582 10588 10578 10580 10567 10568 10576 250mb Temp (C): -54.0 -52.1 -51.2 -51.1 -51.4 -52.0 -52.4 -53.9 -52.6 -52.3 -52.4 -52.0 -52.7 -53.4 -53.0 250mb Dewpt(C): -59.5 -56.1 -54.9 -54.1 -55.0 -56.3 -56.0 -57.5 -56.4 -56.5 -56.3 -56.2 -57.0 -58.3 -57.0 250mb RH (%): 53 64 66 71 67 61 67 66 65 62 64 62 61 57 64 250mb Dir: 304 294 283 283 274 275 276 290 275 275 277 277 280 285 285 250mb Speed(kt): 81 87 87 95 100 98 94 97 91 85 90 88 93 84 77 200mb GPH (m): 11912 11960 11997 11993 11974 11982 11976 11973 11982 11992 11984 11991 11976 11975 11977 200mb Temp (C): -64.7 -64.0 -63.9 -64.0 -64.4 -62.6 -62.9 -62.9 -64.0 -61.7 -61.0 -60.0 -59.5 -59.7 -60.7 200mb Dewpt(C): -70.3 -68.7 -67.4 -67.7 -68.0 -66.0 -65.2 -67.2 -68.4 -65.5 -66.4 -67.0 -67.7 -68.8 -67.7 200mb RH (%): 49 55 64 63 63 66 75 58 57 63 51 42 36 32 42 200mb Dir: 313 302 286 281 275 276 281 283 282 281 280 279 279 280 283 200mb Speed(kt): 126 110 94 94 96 97 100 104 103 91 95 87 91 86 82 150mb GPH (m): 13669 13695 13719 13726 13721 13742 13748 13758 13764 13784 13776 13790 13777 13774 13773 150mb Temp (C): -61.4 -64.9 -68.2 -66.2 -63.4 -64.0 -63.0 -59.7 -59.0 -60.1 -60.0 -59.8 -59.8 -59.2 -60.0 150mb Dewpt(C): -81.6 -81.6 -76.8 -79.6 -81.1 -80.5 -81.7 -83.3 -83.2 -83.8 -83.8 -83.9 -83.9 -83.4 -84.0 150mb RH (%): 7 10 31 16 9 11 8 4 4 4 4 4 4 4 4 150mb Dir: 285 297 288 286 290 291 284 286 281 286 286 286 286 288 292 150mb Speed(kt): 52 68 88 88 85 78 73 74 69 69 73 70 72 68 81 100mb GPH (m): 16168 16190 16219 16238 16234 16238 16243 16280 16281 16292 16287 16293 16287 16287 16283 100mb Temp (C): -62.6 -62.7 -62.5 -61.6 -60.6 -62.0 -61.4 -61.7 -64.0 -63.9 -63.6 -63.8 -64.5 -63.4 -63.3 100mb Dewpt(C): -87.7 -86.1 -87.6 -89.5 -88.8 -89.9 -89.5 -85.3 -87.1 -86.9 -88.6 -88.8 -89.4 -91.1 -86.9 100mb RH (%): 3 4 3 2 2 2 2 4 4 4 3 3 3 2 4 100mb Dir: 296 292 289 282 299 297 292 297 290 295 287 295 293 296 299 100mb Speed(kt): 53 43 34 39 39 34 47 36 36 42 46 53 54 56 56