Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z SEP 27, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 990.8 991.0 988.7 990.7 991.7 993.9 993.6 992.9 992.1 992.2 992.0 993.8 996.6 998.2 995.3 Mean SLP (mb): 1015.3 1015.1 1012.5 1014.9 1016.2 1018.3 1017.7 1017.2 1016.6 1016.6 1016.2 1018.2 1021.4 1022.9 1019.5 2m agl Tmp (F): 52.5 62.8 69.7 57.8 50.6 56.9 61.2 56.5 53.6 54.9 55.7 55.0 45.6 50.4 62.5 2m agl Dewpt(F): 36.0 36.7 40.2 42.8 41.1 46.3 42.5 43.6 44.5 46.0 51.9 53.8 45.4 46.5 47.4 2m agl RH (%): 53 37 33 57 69 67 49 61 71 71 87 95 99 86 57 10m agl Dir: 65 76 38 11 143 261 281 127 170 170 187 300 33 304 351 10m agl Spd(kt): 6 10 4 2 2 3 4 2 4 5 6 5 1 1 4 6hr Precip (in): 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.06 0.16 0.01 0.00 0.00 AccumPrecip(in): 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.07 0.23 0.24 0.24 0.24 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 37.2 0.2 5.6 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 -2.9 0.0 0.0 0.0 0-3km Hel(J/kg): 135.0 116.9 36.2 35.0 56.4 31.8 91.6 125.3 149.8 206.9 209.5 122.2 76.9 16.3 72.7 Precip H20 (in): 0.51 0.53 0.55 0.57 0.47 0.63 0.73 0.89 0.87 1.19 1.32 0.78 0.43 0.44 0.52 Lifted Index(C): 5.7 5.4 4.4 6.5 10.8 13.1 13.8 14.1 10.6 7.4 6.6 10.7 16.9 17.4 10.5 700mb VV(-ub/s): 0.1 -0.5 -0.6 -0.7 0.5 1.5 -1.5 -1.4 0.2 -1.4 1.3 0.8 -2.1 -1.4 -1.2 Thk1000-500mb(m)5542.7 5537.9 5556.6 5558.0 5569.4 5568.7 5591.6 5606.1 5604.0 5611.0 5597.4 5580.9 5565.3 5558.0 5590.1 Thk1000-850mb(m)1357.6 1359.2 1372.5 1365.4 1355.3 1351.2 1355.7 1354.6 1351.1 1354.1 1356.1 1346.5 1334.2 1337.8 1358.4 Thk850-700mb(m):1581.0 1581.1 1582.3 1581.9 1582.7 1582.0 1582.1 1590.0 1586.0 1585.8 1583.7 1578.6 1577.2 1579.0 1583.9 SWEAT Index: 41.8 25.6 29.9 23.2 33.1 37.6 47.5 56.9 89.6 183.8 187.3 151.2 74.8 66.3 51.9 Total Totals Idx 42.9 42.5 41.3 38.4 33.6 21.7 18.2 25.0 29.2 36.0 37.2 31.6 17.2 11.4 12.7 Frz Hgt(ft amsl) 9578 9571 9840 10495 11025 10814 11471 12519 12979 13088 11696 11565 12231 10953 11906 0WetBlbHgt(amsl) 6751 8354 8326 7331 6693 5282 7330 7625 8865 11447 10962 7659 4650 4730 4987 Equil Prs (mb): 991 991 989 991 992 994 994 993 992 992 992 869 997 998 995 Equil Hgt(amsl): 26 26 26 26 26 26 26 26 26 26 26 4334 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: 45.0 46.6 49.7 44.7 46.8 50.4 55.6 52.3 53.9 29.2 26.4 24.1 57.9 54.3 53.1 Showalter Index: 5.6 5.9 6.5 7.9 10.4 16.0 17.5 14.8 12.3 7.2 6.5 10.5 19.3 19.3 17.8 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 0.0 -999.9 6.5 -999.9 Storm Dir (deg): 185 161 36 22 346 326 327 310 293 294 301 316 334 339 338 Storm Spd (kts): 9 7 4 4 8 9 13 13 17 20 24 20 18 14 12 2m HeatIndex(F): 52 63 70 58 51 57 61 57 54 55 56 55 46 50 62 2m WindChill(F): 52 63 70 58 51 57 61 57 54 55 56 55 46 50 62 1000mb GPH (m): 126 127 107 125 134 153 149 144 138 138 136 152 175 188 164 950mb GPH (m): 556 560 546 558 563 581 582 575 566 567 566 581 599 611 597 950mb Temp (C): 12.7 12.3 17.0 14.7 12.1 10.2 12.3 12.1 11.2 10.4 10.5 9.8 6.8 5.9 12.4 950mb Dewpt(C): 1.4 0.5 2.8 5.3 5.4 4.1 4.7 4.9 5.1 6.7 10.3 8.6 5.6 4.6 7.3 950mb RH (%): 45 44 38 52 63 65 59 61 66 77 99 92 92 92 71 950mb Dir: 85 80 46 32 333 262 284 192 212 199 205 328 346 24 5 950mb Speed(kt): 20 16 6 5 4 3 6 3 11 15 15 12 7 2 6 900mb GPH (m): 1008 1011 1003 1014 1015 1031 1032 1026 1016 1017 1018 1028 1043 1055 1048 900mb Temp (C): 11.4 11.4 12.7 12.6 11.3 10.3 9.8 9.2 9.3 10.3 10.1 7.1 5.8 8.1 11.0 900mb Dewpt(C): -1.5 -4.1 0.2 0.3 -0.2 -5.4 -8.0 2.7 1.2 10.0 9.9 6.2 0.1 -3.9 -3.6 900mb RH (%): 40 33 42 42 44 32 28 63 56 98 98 94 67 42 35 900mb Dir: 106 103 47 72 328 300 298 238 230 239 247 318 343 16 60 900mb Speed(kt): 26 22 8 5 5 7 7 8 16 21 22 16 15 10 11 850mb GPH (m): 1484 1486 1479 1490 1489 1504 1505 1499 1489 1492 1492 1498 1509 1526 1522 850mb Temp (C): 9.9 9.6 9.8 10.0 8.5 8.0 8.6 8.9 7.9 8.0 8.0 6.2 5.2 8.1 9.3 850mb Dewpt(C): -3.3 -6.5 -5.2 -4.6 -1.3 -11.9 -12.2 -4.5 1.5 7.8 7.9 5.6 -10.7 -19.2 -20.6 850mb RH (%): 39 31 34 35 50 23 21 38 64 99 99 95 31 13 10 850mb Dir: 129 120 62 81 320 298 288 259 251 254 266 270 327 16 71 850mb Speed(kt): 11 8 12 5 5 7 10 14 18 23 23 19 13 11 7 800mb GPH (m): 1984 1986 1979 1990 1988 2002 2004 1999 1987 1990 1991 1995 2004 2024 2022 800mb Temp (C): 6.6 6.9 7.0 6.8 6.3 6.8 6.8 7.1 5.1 4.9 6.3 5.4 6.2 6.4 7.2 800mb Dewpt(C): -8.6 -5.3 -6.2 -6.2 -7.5 -24.8 -4.8 -6.5 4.7 4.6 6.1 -2.4 -32.4 -30.3 -33.4 800mb RH (%): 32 41 38 38 36 8 43 37 97 98 99 57 4 5 4 800mb Dir: 144 77 71 102 291 309 295 262 256 263 274 273 321 358 14 800mb Speed(kt): 3 3 4 1 6 9 14 17 21 24 26 26 19 13 6 750mb GPH (m): 2510 2513 2506 2516 2514 2529 2530 2527 2512 2516 2518 2520 2529 2549 2548 750mb Temp (C): 3.5 3.2 3.4 3.1 4.4 4.2 3.6 5.4 3.0 4.8 3.9 3.3 3.6 3.6 4.2 750mb Dewpt(C): -7.4 -2.6 -2.8 -7.0 -32.8 -10.6 -10.6 -9.1 0.7 -1.1 3.8 -6.5 -28.7 -31.0 -32.5 750mb RH (%): 44 65 64 47 5 33 34 34 85 65 99 48 7 6 5 750mb Dir: 202 154 269 271 293 300 294 273 244 277 280 276 311 337 329 750mb Speed(kt): 7 4 1 2 9 11 19 19 24 26 31 28 22 15 8 700mb GPH (m): 3065 3067 3061 3072 3072 3086 3087 3089 3075 3078 3076 3077 3086 3105 3106 700mb Temp (C): -1.3 -1.2 -0.4 0.8 1.7 1.0 1.2 3.1 6.0 3.5 1.0 1.4 1.6 0.7 2.2 700mb Dewpt(C): -8.0 -8.3 -13.1 -24.4 -24.1 -11.9 -16.0 1.6 -30.9 1.3 0.5 -12.0 -37.2 -38.2 -36.4 700mb RH (%): 60 58 38 13 13 37 26 90 5 86 97 36 4 4 4 700mb Dir: 206 184 224 304 305 287 296 290 255 277 281 280 305 316 310 700mb Speed(kt): 11 6 5 5 11 14 25 19 28 30 36 30 28 19 14 650mb GPH (m): 3651 3655 3650 3663 3665 3679 3681 3687 3676 3677 3671 3670 3681 3696 3701 650mb Temp (C): -4.0 -4.1 -3.3 -2.9 -1.8 -1.9 -0.6 0.8 1.9 0.6 -0.2 -0.5 0.3 -1.1 -0.3 650mb Dewpt(C): -37.9 -31.0 -27.7 -9.8 -25.1 -11.9 -1.7 -5.7 -15.1 -2.8 -1.6 -37.8 -43.2 -39.0 -22.9 650mb RH (%): 5 11 13 59 15 46 92 62 27 78 90 4 2 4 17 650mb Dir: 207 196 244 319 306 282 299 297 267 272 276 290 298 304 299 650mb Speed(kt): 11 4 5 7 12 16 28 22 30 31 43 35 36 25 21 600mb GPH (m): 4278 4281 4277 4291 4296 4310 4319 4325 4316 4318 4310 4307 4317 4331 4336 600mb Temp (C): -7.0 -7.5 -8.0 -7.6 -5.5 -5.3 -2.3 -3.0 -2.5 -0.6 -2.3 -2.6 -3.1 -4.0 -3.8 600mb Dewpt(C): -23.5 -22.5 -13.5 -20.4 -33.6 -6.9 -7.2 -8.4 -11.8 -7.8 -6.0 -29.0 -29.3 -25.8 -10.3 600mb RH (%): 26 29 65 35 9 89 69 66 49 58 76 11 12 17 61 600mb Dir: 202 206 253 325 323 288 292 299 279 275 277 284 295 292 293 600mb Speed(kt): 8 6 6 6 16 17 25 28 33 33 49 41 39 32 29 550mb GPH (m): 4950 4950 4946 4962 4973 4989 5004 5011 5002 5007 4996 4992 5002 5011 5018 550mb Temp (C): -12.3 -13.7 -13.3 -12.4 -9.2 -9.0 -7.3 -6.3 -6.3 -4.8 -6.9 -5.7 -6.2 -8.5 -7.2 550mb Dewpt(C): -21.0 -17.8 -24.1 -19.6 -30.6 -11.2 -10.9 -10.8 -7.9 -12.3 -9.2 -23.9 -23.8 -11.8 -11.7 550mb RH (%): 49 71 40 56 16 84 76 70 88 56 83 23 24 77 70 550mb Dir: 199 200 267 342 328 300 300 289 288 272 276 284 292 290 289 550mb Speed(kt): 13 9 5 9 23 19 26 30 32 40 48 44 44 37 35 500mb GPH (m): 5669 5665 5663 5683 5704 5722 5741 5750 5742 5749 5733 5733 5740 5746 5754 500mb Temp (C): -18.2 -19.7 -18.4 -16.5 -13.2 -12.8 -10.9 -10.2 -9.9 -10.1 -10.6 -9.9 -11.4 -11.2 -12.0 500mb Dewpt(C): -22.6 -28.3 -29.3 -34.1 -32.9 -16.3 -16.3 -14.2 -15.3 -16.4 -13.2 -18.1 -18.1 -20.5 -17.1 500mb RH (%): 68 47 38 21 18 75 65 73 65 60 81 51 58 46 66 500mb Dir: 201 209 287 347 320 313 308 274 290 272 278 284 291 287 291 500mb Speed(kt): 19 10 5 14 22 23 28 30 35 43 47 47 48 45 38 450mb GPH (m): 6446 6441 6441 6466 6495 6519 6543 6555 6546 6553 6538 6537 6541 6547 6554 450mb Temp (C): -23.7 -24.4 -23.9 -21.5 -19.2 -17.2 -15.7 -15.1 -15.4 -14.6 -14.6 -15.4 -16.3 -16.1 -15.6 450mb Dewpt(C): -29.8 -37.1 -33.9 -47.6 -32.1 -24.6 -22.5 -19.3 -21.9 -20.7 -20.4 -26.3 -23.8 -25.1 -23.2 450mb RH (%): 58 31 40 8 32 53 56 71 58 60 62 39 53 46 52 450mb Dir: 203 212 311 359 323 327 307 282 286 272 278 285 286 288 293 450mb Speed(kt): 20 16 7 23 21 30 25 29 35 44 55 47 49 50 53 400mb GPH (m): 7297 7289 7289 7325 7359 7391 7421 7434 7425 7435 7419 7416 7418 7426 7433 400mb Temp (C): -28.7 -29.7 -29.5 -26.3 -25.4 -23.5 -21.9 -21.4 -21.2 -20.7 -20.5 -21.2 -21.2 -20.9 -20.7 400mb Dewpt(C): -53.9 -46.0 -46.3 -51.3 -31.3 -29.9 -28.1 -25.1 -28.9 -28.2 -25.7 -28.7 -36.4 -30.5 -31.6 400mb RH (%): 8 20 19 8 58 56 58 73 51 52 64 52 25 43 38 400mb Dir: 215 211 304 9 329 334 314 287 277 273 277 284 284 287 291 400mb Speed(kt): 25 26 7 45 29 40 27 32 34 39 57 56 58 55 56 350mb GPH (m): 8238 8225 8227 8273 8314 8351 8388 8404 8397 8408 8393 8386 8387 8395 8406 350mb Temp (C): -35.8 -37.4 -36.1 -34.5 -32.8 -30.6 -29.5 -28.6 -27.7 -28.0 -27.4 -29.0 -29.3 -28.8 -27.5 350mb Dewpt(C): -65.7 -52.7 -56.4 -47.0 -36.0 -38.9 -34.1 -31.6 -45.5 -33.5 -33.5 -33.6 -51.1 -37.2 -40.2 350mb RH (%): 4 20 12 29 74 45 65 76 18 60 57 65 11 45 30 350mb Dir: 216 209 284 2 318 333 319 290 279 278 276 283 283 286 292 350mb Speed(kt): 33 32 9 52 38 44 36 40 31 44 61 60 57 61 65 300mb GPH (m): 9288 9273 9283 9330 9379 9424 9468 9487 9483 9495 9482 9470 9468 9477 9493 300mb Temp (C): -44.9 -44.3 -42.2 -43.4 -42.0 -40.7 -38.8 -37.9 -38.0 -37.1 -36.3 -37.2 -38.4 -38.4 -36.8 300mb Dewpt(C): -59.2 -62.4 -61.0 -55.1 -45.5 -47.5 -43.5 -41.3 -49.9 -42.6 -41.6 -41.8 -48.4 -43.7 -46.3 300mb RH (%): 21 13 13 28 69 50 62 72 29 58 59 63 36 59 38 300mb Dir: 214 209 319 357 333 335 318 294 297 282 273 279 282 288 295 300mb Speed(kt): 42 34 12 49 52 60 55 38 45 51 64 65 69 68 78 250mb GPH (m): 10486 10479 10499 10537 10581 10638 10691 10713 10706 10726 10720 10704 10695 10703 10726 250mb Temp (C): -50.9 -48.5 -47.7 -49.8 -52.5 -50.5 -49.1 -48.9 -49.6 -47.5 -46.4 -46.9 -47.6 -48.7 -47.3 250mb Dewpt(C): -69.4 -66.1 -66.9 -61.0 -57.1 -55.5 -53.2 -52.9 -56.8 -52.4 -51.8 -51.0 -54.8 -57.8 -50.8 250mb RH (%): 11 13 11 28 59 57 64 64 45 59 56 65 45 36 68 250mb Dir: 217 225 324 343 339 333 315 294 305 292 276 273 282 291 294 250mb Speed(kt): 43 27 18 36 68 81 56 42 43 62 70 69 77 76 82 200mb GPH (m): 11932 11944 11960 11986 12009 12054 12114 12139 12129 12161 12161 12145 12131 12131 12157 200mb Temp (C): -51.0 -48.7 -49.6 -51.4 -52.5 -59.7 -60.5 -59.6 -58.6 -59.0 -57.5 -56.9 -58.8 -58.6 -60.3 200mb Dewpt(C): -77.1 -77.5 -75.7 -73.7 -72.6 -65.8 -66.7 -65.4 -63.4 -62.9 -61.1 -61.5 -65.1 -66.5 -65.8 200mb RH (%): 4 3 4 7 8 48 47 50 56 62 65 59 46 38 51 200mb Dir: 236 260 293 321 295 338 328 300 304 294 280 269 285 289 295 200mb Speed(kt): 36 25 21 31 32 61 58 53 72 78 75 76 84 83 96 150mb GPH (m): 13806 13825 13837 13861 13863 13879 13910 13934 13928 13943 13953 13955 13926 13922 13927 150mb Temp (C): -50.8 -50.6 -50.6 -50.4 -51.2 -53.8 -57.1 -57.4 -61.2 -61.6 -61.1 -58.2 -60.2 -59.2 -62.1 150mb Dewpt(C): -86.1 -86.0 -86.0 -85.9 -85.7 -83.5 -83.6 -81.7 -78.6 -77.7 -79.2 -78.9 -80.1 -80.2 -78.4 150mb RH (%): 1 1 1 1 1 2 3 4 10 12 9 7 7 6 12 150mb Dir: 252 272 274 283 277 289 303 287 288 291 288 281 278 277 281 150mb Speed(kt): 34 25 24 29 25 31 44 43 55 68 81 69 68 72 79 100mb GPH (m): 16428 16441 16450 16464 16453 16464 16476 16482 16460 16474 16475 16478 16452 16461 16454 100mb Temp (C): -53.6 -54.3 -54.8 -56.0 -56.9 -57.2 -59.1 -58.9 -59.9 -59.0 -60.3 -61.2 -60.3 -60.1 -60.8 100mb Dewpt(C): -88.1 -88.6 -89.0 -89.9 -89.8 -86.3 -87.8 -87.6 -88.4 -87.7 -88.5 -85.0 -88.6 -88.3 -88.9 100mb RH (%): 1 1 1 1 1 2 2 2 2 2 2 4 2 2 2 100mb Dir: 266 271 270 270 264 272 280 268 274 269 265 269 279 265 272 100mb Speed(kt): 24 26 25 27 25 28 33 26 38 39 43 50 50 38 48