Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z APR 28, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr Sfc Prs(mb): 997.0 998.8 998.1 999.5 999.3 999.3 996.5 996.8 Mean SLP (mb): 1021.8 1023.6 1022.7 1024.3 1024.3 1024.0 1020.7 1021.2 2m agl Tmp (F): 48.4 49.7 56.3 49.3 45.6 54.9 63.7 56.2 2m agl Dewpt(F): 43.1 44.8 43.6 41.5 41.2 43.5 48.2 46.4 2m agl RH (%): 81 83 62 74 84 65 56 69 10m agl Dir: 257 229 290 312 309 308 323 21 10m agl Spd(kt): 1 3 6 5 2 3 6 3 6hr Precip (in): 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 AccumPrecip(in): 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Sfc CAPE (J/kg): 6.6 49.3 37.0 2.7 1.2 12.9 1.2 0.0 Sfc CINH (J/kg): -15.8 0.0 0.0 -23.9 -3.6 0.0 0.0 0.0 0-3km Hel(J/kg): 63.6 50.6 14.3 50.6 46.9 16.7 29.0 3.6 Precip H20 (in): 0.53 0.59 0.66 0.57 0.52 0.54 0.59 0.54 Lifted Index(C): 8.6 10.0 10.3 12.2 12.7 11.9 5.6 4.6 700mb VV(-ub/s): 0.9 0.6 0.2 -0.7 -0.5 -1.4 -1.3 -1.4 Thk1000-500mb(m)5436.8 5437.4 5460.5 5466.8 5471.1 5484.3 5521.5 5526.2 Thk1000-850mb(m)1324.2 1320.8 1331.7 1324.3 1319.0 1327.2 1353.6 1360.0 Thk850-700mb(m):1544.9 1541.0 1544.9 1547.8 1551.9 1555.9 1564.1 1566.2 SWEAT Index: 51.7 38.0 47.1 45.1 45.4 57.2 52.6 56.5 Total Totals Idx 40.3 37.5 34.4 33.3 32.2 33.2 37.9 41.9 Frz Hgt(ft amsl) 4972 4758 5476 4925 4748 8024 8541 8710 0WetBlbHgt(amsl) 4904 4453 4936 4809 4266 5115 5998 6421 Equil Prs (mb): 849 792 785 999 999 999 997 997 Equil Hgt(amsl): 4950 6812 7073 26 26 26 26 26 Hail Size(in): 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Conv Wind Gust: 20.2 20.1 25.9 24.3 23.1 21.0 40.5 39.5 Showalter Index: 9.1 10.8 11.9 12.7 13.6 12.3 8.9 6.5 Cap Strength(C): 5.1 4.5 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 Storm Dir (deg): 341 330 344 10 14 47 68 92 Storm Spd (kts): 11 9 10 11 11 9 10 10 2m HeatIndex(F): 48 50 56 49 46 55 64 56 2m WindChill(F): 48 50 56 49 46 55 64 56 1000mb GPH (m): 178 194 188 199 198 198 175 177 950mb GPH (m): 601 616 615 622 619 623 608 609 950mb Temp (C): 6.1 5.1 8.2 5.9 5.8 6.8 12.4 13.7 950mb Dewpt(C): 5.9 4.0 4.6 3.3 3.5 4.3 7.1 6.8 950mb RH (%): 99 93 78 83 85 84 70 63 950mb Dir: 307 232 294 333 343 318 332 53 950mb Speed(kt): 6 3 7 9 5 2 7 10 900mb GPH (m): 1042 1055 1058 1063 1058 1064 1058 1063 900mb Temp (C): 2.9 2.4 3.8 3.4 2.2 3.0 8.1 11.4 900mb Dewpt(C): 2.3 1.0 3.4 1.3 0.4 1.5 5.3 1.8 900mb RH (%): 96 91 97 86 88 89 82 51 900mb Dir: 267 288 298 330 6 52 358 89 900mb Speed(kt): 8 7 8 6 2 3 6 15 850mb GPH (m): 1503 1515 1520 1524 1517 1526 1528 1537 850mb Temp (C): 0.0 -0.4 0.7 -0.2 -0.4 2.6 6.4 7.8 850mb Dewpt(C): -0.1 -1.4 -0.9 -0.5 -2.0 -3.0 -2.4 -1.8 850mb RH (%): 99 93 89 98 89 67 53 50 850mb Dir: 227 264 303 264 5 86 78 86 850mb Speed(kt): 11 9 9 6 4 13 15 19 800mb GPH (m): 1986 1997 2004 2007 2003 2015 2023 2032 800mb Temp (C): -1.7 -2.9 -1.5 -0.9 1.2 2.0 3.6 4.0 800mb Dewpt(C): -7.3 -5.9 -4.6 -4.5 -7.8 -8.7 -8.9 -6.8 800mb RH (%): 66 80 79 76 51 45 39 45 800mb Dir: 260 283 299 314 5 84 96 86 800mb Speed(kt): 12 11 9 8 9 10 19 20 750mb GPH (m): 2501 2509 2518 2524 2521 2534 2543 2553 750mb Temp (C): -0.9 -0.6 -1.2 -0.8 -0.7 -0.4 0.3 0.6 750mb Dewpt(C): -25.1 -42.1 -7.8 -8.3 -8.5 -10.8 -9.8 -9.0 750mb RH (%): 14 3 60 57 56 45 46 49 750mb Dir: 285 296 282 329 2 62 96 88 750mb Speed(kt): 14 13 9 10 9 8 16 14 700mb GPH (m): 3048 3056 3065 3072 3069 3081 3092 3103 700mb Temp (C): -4.5 -3.9 -4.5 -3.4 -3.2 -3.7 -2.6 -2.5 700mb Dewpt(C): -25.0 -34.5 -9.3 -12.5 -12.8 -13.3 -12.0 -15.1 700mb RH (%): 19 7 69 49 48 47 49 37 700mb Dir: 300 298 287 339 347 38 80 79 700mb Speed(kt): 14 12 11 12 11 10 11 11 650mb GPH (m): 3626 3636 3645 3654 3652 3664 3677 3688 650mb Temp (C): -8.1 -7.2 -7.1 -5.9 -5.2 -5.6 -4.6 -4.6 650mb Dewpt(C): -27.1 -18.8 -12.8 -15.3 -20.0 -17.5 -16.9 -23.7 650mb RH (%): 21 39 64 48 31 39 38 21 650mb Dir: 312 305 297 347 344 13 42 53 650mb Speed(kt): 16 15 14 17 21 13 10 10 600mb GPH (m): 4242 4255 4264 4277 4277 4289 4303 4313 600mb Temp (C): -11.8 -11.3 -10.6 -8.6 -8.0 -8.1 -7.8 -8.2 600mb Dewpt(C): -29.7 -12.4 -14.7 -25.7 -30.7 -22.8 -25.4 -29.4 600mb RH (%): 22 92 72 24 15 30 23 17 600mb Dir: 329 309 316 347 342 0 18 40 600mb Speed(kt): 18 17 17 22 31 19 14 12 550mb GPH (m): 4903 4918 4930 4946 4948 4960 4975 4983 550mb Temp (C): -15.5 -15.2 -13.6 -12.6 -11.7 -11.3 -11.6 -11.9 550mb Dewpt(C): -22.4 -16.2 -21.9 -37.2 -41.1 -31.6 -31.8 -47.0 550mb RH (%): 56 92 50 11 7 18 18 4 550mb Dir: 338 315 334 349 340 357 6 27 550mb Speed(kt): 26 18 22 27 37 25 18 15 500mb GPH (m): 5615 5631 5649 5666 5669 5683 5696 5703 500mb Temp (C): -20.2 -19.6 -17.3 -17.0 -17.3 -16.8 -17.0 -18.0 500mb Dewpt(C): -26.7 -21.4 -30.5 -49.9 -40.0 -41.3 -41.6 -40.4 500mb RH (%): 57 86 32 4 13 11 10 13 500mb Dir: 346 321 345 351 340 355 357 16 500mb Speed(kt): 29 20 28 33 38 30 23 18 450mb GPH (m): 6390 6407 6430 6446 6448 6465 6476 6481 450mb Temp (C): -24.0 -23.3 -22.6 -23.3 -23.4 -22.7 -23.3 -23.7 450mb Dewpt(C): -35.1 -27.2 -45.8 -60.9 -43.1 -50.7 -53.4 -50.4 450mb RH (%): 36 71 11 2 16 7 5 7 450mb Dir: 348 326 343 342 340 351 351 359 450mb Speed(kt): 32 25 35 34 37 36 28 23 400mb GPH (m): 7241 7261 7283 7295 7297 7316 7325 7329 400mb Temp (C): -28.8 -28.0 -28.8 -30.3 -30.3 -29.3 -29.8 -29.3 400mb Dewpt(C): -42.4 -35.9 -43.4 -49.6 -45.2 -50.3 -49.9 -51.0 400mb RH (%): 27 48 24 15 23 12 13 11 400mb Dir: 353 332 335 337 337 345 347 346 400mb Speed(kt): 33 32 40 33 38 47 32 32 350mb GPH (m): 8182 8206 8222 8229 8232 8255 8264 8273 350mb Temp (C): -36.1 -34.6 -36.4 -37.9 -36.8 -36.7 -35.1 -34.5 350mb Dewpt(C): -40.3 -40.7 -48.1 -45.6 -54.7 -55.4 -82.2 -62.7 350mb RH (%): 66 55 30 46 15 14 0 5 350mb Dir: 359 338 332 345 335 340 337 338 350mb Speed(kt): 43 37 45 34 44 57 48 57 300mb GPH (m): 9236 9263 9274 9273 9283 9306 9322 9330 300mb Temp (C): -43.4 -43.1 -44.3 -45.3 -43.3 -44.1 -42.7 -43.1 300mb Dewpt(C): -48.6 -47.1 -58.7 -58.1 -64.2 -62.0 -63.5 -61.0 300mb RH (%): 58 66 21 24 10 13 10 14 300mb Dir: 357 333 331 344 346 335 332 333 300mb Speed(kt): 54 40 47 45 62 54 63 63 250mb GPH (m): 10437 10464 10471 10469 10489 10506 10525 10533 250mb Temp (C): -52.6 -52.9 -52.6 -52.7 -51.2 -52.2 -51.9 -52.1 250mb Dewpt(C): -59.1 -57.9 -63.3 -64.9 -66.0 -63.8 -63.9 -63.4 250mb RH (%): 47 57 28 24 18 26 25 27 250mb Dir: 357 337 337 343 345 332 328 327 250mb Speed(kt): 64 39 58 63 79 72 71 68 200mb GPH (m): 11843 11876 11888 11890 11908 11924 11945 11949 200mb Temp (C): -61.5 -59.7 -57.5 -56.8 -59.4 -59.0 -59.1 -59.0 200mb Dewpt(C): -69.7 -68.6 -70.4 -74.1 -71.5 -69.3 -69.6 -69.9 200mb RH (%): 36 33 20 11 22 28 27 26 200mb Dir: 358 337 330 337 335 325 322 319 200mb Speed(kt): 66 51 62 67 73 74 75 58 150mb GPH (m): 13640 13667 13701 13716 13714 13733 13748 13749 150mb Temp (C): -58.1 -59.9 -58.2 -56.3 -58.1 -57.1 -58.1 -58.8 150mb Dewpt(C): -84.3 -80.8 -82.5 -85.4 -82.2 -81.4 -84.0 -81.4 150mb RH (%): 3 6 4 2 4 4 3 5 150mb Dir: 343 338 327 325 321 319 319 299 150mb Speed(kt): 30 35 38 44 46 46 43 39 100mb GPH (m): 16197 16214 16237 16256 16253 16272 16288 16286 100mb Temp (C): -58.3 -57.6 -59.5 -59.9 -60.0 -61.3 -60.0 -60.6 100mb Dewpt(C): -91.5 -91.0 -91.6 -88.3 -88.4 -89.4 -88.2 -88.8 100mb RH (%): 1 1 1 2 2 2 2 2 100mb Dir: 314 305 307 309 324 319 299 306 100mb Speed(kt): 10 12 17 20 24 17 19 15