Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 0Z AUG 28, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 993.3 993.9 993.5 994.1 991.7 992.9 993.3 994.1 994.1 995.1 995.3 997.5 995.3 994.1 991.2 Mean SLP (mb): 1016.9 1017.9 1017.7 1018.3 1015.4 1017.2 1017.6 1018.4 1018.3 1019.5 1019.8 1022.0 1019.4 1018.4 1015.6 2m agl Tmp (F): 75.3 62.2 57.5 59.4 70.5 56.1 55.0 57.6 61.0 54.9 53.5 54.2 65.0 57.0 53.0 2m agl Dewpt(F): 56.8 57.3 55.8 56.2 54.1 49.8 52.9 53.0 49.1 49.1 50.0 50.7 49.4 50.3 48.6 2m agl RH (%): 51 84 94 89 55 79 93 84 64 80 88 87 56 78 85 10m agl Dir: 286 322 357 286 300 306 222 223 291 294 235 207 310 357 47 10m agl Spd(kt): 5 4 1 4 8 4 3 5 7 4 3 3 5 2 3 6hr Precip (in): 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.01 0.00 0.00 0.00 0.00 0.00 0.00 AccumPrecip(in): 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.04 0.04 0.04 0.04 0.04 0.04 0.04 Sfc CAPE (J/kg): 54.3 0.2 1.7 11.9 10.1 0.1 24.6 106.8 71.4 21.3 37.4 38.5 0.8 0.0 0.0 Sfc CINH (J/kg): -0.2 0.0 -0.5 -0.4 -0.2 0.0 -1.1 0.0 0.0 -0.2 0.0 0.0 0.0 0.0 0.0 0-3km Hel(J/kg): 40.4 110.9 66.3 61.4 72.5 76.4 41.4 67.3 52.9 85.5 107.0 81.3 30.3 78.9 92.7 Precip H20 (in): 0.89 0.91 0.86 0.87 0.80 0.65 0.81 0.68 0.82 0.69 0.71 0.87 1.00 1.10 0.97 Lifted Index(C): 2.9 3.9 5.4 6.8 5.0 9.7 5.8 2.5 1.8 3.9 9.7 11.2 8.4 3.9 5.6 700mb VV(-ub/s): -1.3 -0.6 0.3 -0.4 0.2 -0.8 0.0 -1.0 -0.4 -2.4 -3.1 -0.6 -1.5 -1.0 0.0 Thk1000-500mb(m)5623.3 5624.0 5607.0 5597.1 5615.6 5581.5 5521.4 5492.4 5485.0 5483.1 5520.1 5551.3 5591.8 5605.8 5620.0 Thk1000-850mb(m)1383.0 1370.5 1362.2 1357.9 1372.5 1355.1 1346.4 1344.6 1350.5 1341.0 1337.6 1337.7 1356.9 1360.2 1365.3 Thk850-700mb(m):1589.1 1596.5 1591.9 1589.6 1590.0 1579.5 1561.9 1556.1 1554.5 1556.2 1565.5 1572.6 1588.8 1596.7 1600.7 SWEAT Index: 127.6 142.0 108.7 94.5 93.9 62.9 129.9 96.3 102.2 97.7 94.9 86.8 45.4 99.2 98.3 Total Totals Idx 40.1 42.1 40.1 38.3 36.2 31.7 41.8 45.8 48.1 46.4 33.6 31.1 31.8 39.9 38.4 Frz Hgt(ft amsl) 12169 12925 12700 12435 12268 11422 7913 7517 7336 7426 9914 11120 11719 11946 12401 0WetBlbHgt(amsl) 8442 8699 8377 8270 8142 7143 7571 6632 6912 6499 6562 7264 10655 10911 9900 Equil Prs (mb): 685 994 993 994 992 993 752 716 707 792 829 836 995 994 991 Equil Hgt(amsl): 10790 26 26 26 26 26 8151 9427 9795 6810 5578 5442 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: 43.9 34.5 32.1 34.1 38.8 37.9 22.3 23.8 35.4 24.4 21.5 17.2 39.0 41.2 45.5 Showalter Index: 5.2 3.9 5.9 6.9 8.1 11.3 6.0 4.7 3.4 4.5 11.3 12.5 11.5 5.7 6.2 Cap Strength(C): 0.0 -999.9 -999.9 0.0 0.0 -999.9 0.0 0.0 0.0 -0.1 2.0 3.7 -999.9 -999.9 -999.9 Storm Dir (deg): 278 274 274 277 287 285 289 300 312 346 349 340 330 306 278 Storm Spd (kts): 11 14 11 10 11 13 16 14 14 15 15 13 10 9 10 2m HeatIndex(F): 75 62 57 59 70 56 55 58 61 55 53 54 65 57 53 2m WindChill(F): 75 62 57 59 70 56 55 58 61 55 53 54 65 57 53 1000mb GPH (m): 146 152 149 154 132 144 147 154 154 162 164 182 164 154 129 950mb GPH (m): 589 588 581 585 572 574 576 584 587 591 591 609 599 586 561 950mb Temp (C): 18.5 14.7 13.5 11.3 16.4 11.7 10.0 9.8 11.8 9.2 8.6 8.4 13.0 12.5 13.3 950mb Dewpt(C): 12.0 12.4 11.6 10.8 10.9 9.3 9.7 9.7 8.4 7.9 8.3 8.0 8.2 9.0 7.2 950mb RH (%): 65 85 88 96 69 85 98 99 79 92 98 98 72 79 66 950mb Dir: 284 341 326 314 303 323 287 220 291 302 262 238 314 17 26 950mb Speed(kt): 5 13 4 5 10 14 6 6 10 8 6 4 5 6 4 900mb GPH (m): 1050 1044 1035 1037 1029 1025 1024 1031 1036 1036 1037 1054 1050 1038 1015 900mb Temp (C): 14.3 12.8 11.3 10.5 11.9 10.3 7.9 6.9 7.7 6.2 5.8 5.9 8.8 10.8 13.0 900mb Dewpt(C): 9.6 9.5 7.6 7.4 9.9 3.4 7.5 5.9 7.1 5.1 5.4 5.6 7.2 1.4 5.9 900mb RH (%): 73 80 78 80 87 62 97 93 96 93 98 97 89 52 61 900mb Dir: 277 337 336 333 306 312 315 267 290 304 292 284 321 351 17 900mb Speed(kt): 6 10 6 9 10 7 12 9 10 9 9 6 5 4 3 850mb GPH (m): 1529 1522 1511 1512 1505 1499 1493 1499 1505 1503 1502 1520 1521 1514 1495 850mb Temp (C): 10.0 10.0 9.0 9.1 8.5 7.7 4.9 4.0 3.8 3.8 2.4 2.6 7.1 10.5 11.7 850mb Dewpt(C): 6.8 7.7 5.1 4.5 4.4 0.8 4.7 2.7 3.5 2.6 2.2 2.4 -0.9 5.2 5.3 850mb RH (%): 81 86 77 73 75 61 99 91 97 92 98 98 57 69 65 850mb Dir: 280 261 292 308 290 265 312 271 281 293 299 307 332 319 237 850mb Speed(kt): 5 7 6 6 8 13 14 13 13 12 13 11 8 4 2 800mb GPH (m): 2029 2024 2011 2012 2005 1996 1986 1989 1995 1993 1992 2012 2020 2017 2000 800mb Temp (C): 5.9 8.1 7.5 7.1 7.4 5.3 1.9 1.2 1.3 0.8 3.0 5.0 7.8 8.3 9.4 800mb Dewpt(C): 3.7 0.1 -0.9 0.5 -0.6 -3.2 1.5 -0.9 -0.2 -1.0 -3.3 -2.9 -1.9 5.8 4.2 800mb RH (%): 85 57 55 63 56 54 97 86 90 88 63 56 50 84 69 800mb Dir: 293 264 298 273 250 261 283 263 289 296 312 307 301 263 236 800mb Speed(kt): 6 8 7 7 11 15 14 13 13 14 17 12 11 7 7 750mb GPH (m): 2556 2555 2541 2541 2534 2520 2504 2506 2512 2510 2513 2536 2549 2549 2532 750mb Temp (C): 4.8 7.2 6.0 5.2 5.4 3.6 -0.4 -0.9 -1.5 -0.7 2.1 2.9 5.1 5.6 6.0 750mb Dewpt(C): -5.3 -7.5 -7.0 -6.6 -7.7 -12.7 -1.7 -3.9 -2.5 -5.3 -10.3 -9.5 3.8 3.8 2.7 750mb RH (%): 47 34 38 42 38 29 91 80 93 71 39 39 91 88 79 750mb Dir: 257 250 263 241 238 266 264 269 292 303 321 305 318 264 243 750mb Speed(kt): 10 11 9 9 15 17 18 15 15 17 20 13 14 9 14 700mb GPH (m): 3118 3119 3103 3101 3095 3078 3055 3055 3059 3059 3067 3093 3110 3111 3096 700mb Temp (C): 3.2 4.3 3.7 3.4 3.2 1.9 -0.6 -2.3 -3.2 -2.6 -0.2 1.1 1.9 3.2 4.7 700mb Dewpt(C): -11.5 -13.6 -12.9 -12.7 -11.4 -15.0 -22.8 -21.9 -11.7 -15.3 -11.9 -15.0 -0.3 0.2 -7.1 700mb RH (%): 33 26 28 30 33 28 17 21 52 37 41 29 86 80 42 700mb Dir: 241 233 242 238 237 252 261 274 285 315 326 307 311 260 246 700mb Speed(kt): 12 19 16 15 18 18 23 19 20 20 22 16 15 12 17 650mb GPH (m): 3714 3718 3701 3699 3691 3673 3644 3640 3643 3643 3656 3686 3705 3708 3695 650mb Temp (C): 0.0 1.4 1.1 0.6 0.2 -0.9 -3.2 -4.9 -6.0 -5.3 -3.2 -1.1 -0.5 -0.4 0.6 650mb Dewpt(C): -16.6 -16.8 -15.3 -13.3 -16.8 -13.0 -40.0 -23.3 -12.6 -29.5 -19.1 -12.4 -4.8 -5.9 -8.2 650mb RH (%): 28 24 28 35 27 39 4 22 60 13 29 42 73 66 51 650mb Dir: 240 228 235 234 241 242 260 275 283 322 325 317 303 269 244 650mb Speed(kt): 17 28 23 21 19 22 27 23 23 23 23 22 17 17 19 600mb GPH (m): 4351 4357 4339 4336 4328 4307 4272 4264 4264 4266 4285 4320 4342 4344 4332 600mb Temp (C): -2.7 -2.7 -3.0 -3.4 -2.9 -3.9 -6.9 -8.1 -10.5 -9.4 -7.1 -4.6 -3.5 -4.0 -3.9 600mb Dewpt(C): -26.9 -15.8 -14.8 -15.3 -24.5 -20.0 -35.4 -33.2 -17.9 -25.9 -21.0 -10.6 -8.5 -11.3 -8.4 600mb RH (%): 14 36 40 39 17 28 9 12 55 25 32 63 68 57 70 600mb Dir: 242 229 234 231 245 240 253 278 281 325 320 317 294 273 244 600mb Speed(kt): 24 35 28 25 20 27 33 30 26 28 28 28 19 21 24 550mb GPH (m): 5034 5041 5022 5018 5012 4989 4945 4931 4927 4932 4958 5000 5023 5025 5013 550mb Temp (C): -7.3 -7.2 -7.5 -7.9 -6.8 -6.9 -11.5 -14.0 -15.4 -14.6 -10.6 -8.2 -8.5 -7.9 -7.9 550mb Dewpt(C): -34.0 -20.1 -18.1 -21.7 -25.2 -45.9 -19.7 -33.0 -20.0 -22.2 -28.1 -10.8 -12.7 -14.9 -17.4 550mb RH (%): 10 35 43 32 22 3 51 19 68 53 23 82 71 57 47 550mb Dir: 238 232 231 233 250 241 246 275 277 325 326 318 283 273 245 550mb Speed(kt): 29 36 33 27 23 28 39 34 30 36 36 35 24 25 25 500mb GPH (m): 5769 5776 5756 5751 5748 5725 5668 5646 5639 5645 5684 5734 5756 5760 5749 500mb Temp (C): -11.6 -12.2 -13.0 -12.3 -11.6 -11.6 -16.1 -19.5 -20.4 -20.0 -14.5 -13.1 -12.8 -12.2 -10.7 500mb Dewpt(C): -48.2 -26.8 -25.7 -29.9 -33.0 -41.1 -21.4 -37.9 -21.0 -34.0 -35.3 -17.6 -18.3 -14.2 -24.4 500mb RH (%): 3 29 34 22 16 7 64 19 95 29 16 69 64 85 32 500mb Dir: 238 233 232 238 256 238 241 272 274 324 329 314 287 268 254 500mb Speed(kt): 36 35 35 27 25 29 47 39 35 42 43 36 29 28 31 450mb GPH (m): 6568 6572 6550 6547 6545 6522 6454 6419 6409 6419 6475 6528 6552 6559 6549 450mb Temp (C): -16.3 -17.6 -17.9 -17.7 -17.8 -18.5 -21.2 -25.7 -26.9 -24.8 -19.1 -18.5 -17.0 -16.8 -16.7 450mb Dewpt(C): -39.4 -42.1 -35.6 -29.5 -42.7 -42.5 -25.2 -42.3 -30.8 -41.8 -32.4 -22.3 -34.1 -19.6 -26.6 450mb RH (%): 12 11 21 36 10 11 70 21 70 20 31 73 22 79 42 450mb Dir: 235 234 231 242 257 237 236 265 269 328 330 306 286 270 249 450mb Speed(kt): 42 32 34 29 27 33 57 43 39 51 53 36 34 29 31 400mb GPH (m): 7444 7443 7420 7416 7413 7387 7311 7260 7248 7268 7342 7395 7428 7435 7425 400mb Temp (C): -22.5 -23.5 -24.0 -24.4 -24.3 -25.5 -27.2 -31.8 -32.3 -28.3 -23.9 -24.4 -21.5 -21.4 -22.0 400mb Dewpt(C): -30.3 -39.6 -38.6 -29.2 -46.2 -42.0 -32.4 -49.0 -53.7 -54.1 -33.9 -27.9 -41.3 -29.6 -34.7 400mb RH (%): 50 22 26 65 12 21 62 18 11 7 40 73 16 48 31 400mb Dir: 239 234 230 243 248 240 231 256 266 336 329 303 290 274 256 400mb Speed(kt): 42 32 36 33 32 37 65 51 37 71 63 40 40 33 36 350mb GPH (m): 8406 8404 8378 8373 8371 8340 8258 8192 8178 8217 8304 8357 8394 8405 8390 350mb Temp (C): -31.1 -31.1 -31.5 -31.8 -31.4 -32.5 -34.2 -37.5 -37.0 -32.1 -29.9 -29.9 -29.7 -28.6 -29.4 350mb Dewpt(C): -36.7 -38.8 -38.2 -39.5 -48.1 -48.2 -47.1 -53.6 -59.0 -56.5 -35.8 -46.5 -34.6 -35.8 -43.6 350mb RH (%): 59 48 53 48 19 21 28 19 10 8 58 20 63 51 25 350mb Dir: 240 233 226 244 240 240 230 244 280 339 323 302 286 271 244 350mb Speed(kt): 47 34 40 35 42 40 68 62 35 89 68 53 45 39 38 300mb GPH (m): 9478 9477 9450 9445 9443 9406 9319 9246 9237 9292 9384 9437 9475 9489 9470 300mb Temp (C): -40.1 -39.6 -39.9 -39.8 -40.1 -41.1 -41.8 -41.4 -39.9 -38.5 -38.3 -38.6 -37.9 -37.7 -38.5 300mb Dewpt(C): -46.7 -45.2 -45.4 -53.0 -47.0 -55.3 -56.0 -62.2 -63.7 -57.7 -45.4 -48.0 -45.3 -46.9 -48.4 300mb RH (%): 50 56 57 25 49 22 22 10 7 13 49 38 47 39 36 300mb Dir: 238 234 224 243 236 237 231 239 298 339 320 309 287 274 235 300mb Speed(kt): 50 38 44 39 50 47 71 71 37 103 76 59 51 43 44 250mb GPH (m): 10696 10699 10670 10667 10662 10621 10539 10475 10471 10522 10610 10660 10702 10718 10695 250mb Temp (C): -49.7 -48.7 -48.8 -48.3 -48.6 -49.1 -46.6 -44.0 -42.9 -46.2 -48.3 -48.8 -48.3 -47.8 -48.6 250mb Dewpt(C): -55.7 -55.1 -54.8 -56.9 -58.7 -61.9 -62.4 -71.3 -71.8 -64.7 -55.0 -59.0 -54.2 -59.3 -52.5 250mb RH (%): 51 49 52 38 32 23 17 4 3 12 48 32 52 28 66 250mb Dir: 238 235 225 236 234 233 234 238 295 338 321 307 291 270 233 250mb Speed(kt): 52 45 51 52 57 59 70 58 40 92 84 65 60 49 50 200mb GPH (m): 12127 12139 12110 12110 12104 12067 12004 11969 11971 11996 12046 12096 12136 12150 12123 200mb Temp (C): -55.8 -54.4 -55.0 -54.5 -54.3 -52.5 -48.8 -44.2 -44.4 -47.1 -55.0 -55.3 -57.9 -58.7 -59.4 200mb Dewpt(C): -67.4 -67.7 -69.0 -69.5 -69.8 -70.7 -75.1 -76.6 -80.2 -77.9 -65.8 -64.4 -64.9 -64.0 -63.1 200mb RH (%): 25 20 18 16 15 11 4 2 1 2 27 34 43 52 64 200mb Dir: 236 232 230 231 231 236 237 254 294 323 321 301 292 266 231 200mb Speed(kt): 54 48 57 56 59 56 57 38 29 52 65 67 76 54 55 150mb GPH (m): 13981 13990 13959 13955 13957 13939 13900 13881 13882 13890 13895 13926 13948 13947 13916 150mb Temp (C): -52.1 -53.1 -52.5 -53.5 -52.6 -50.4 -49.2 -47.9 -47.5 -49.1 -53.4 -55.2 -55.4 -57.0 -57.4 150mb Dewpt(C): -83.0 -83.2 -82.6 -83.6 -82.9 -85.9 -85.0 -84.1 -83.8 -85.0 -83.4 -79.6 -81.5 -83.4 -80.4 150mb RH (%): 2 2 2 2 2 1 1 1 1 1 2 4 3 3 5 150mb Dir: 231 236 236 233 243 240 244 241 275 294 303 288 276 263 238 150mb Speed(kt): 46 48 44 44 47 43 41 37 27 24 38 35 37 41 39 100mb GPH (m): 16590 16591 16565 16559 16569 16564 16536 16530 16537 16529 16504 16513 16522 16518 16489 100mb Temp (C): -53.7 -54.2 -54.5 -53.6 -53.0 -53.3 -51.9 -51.8 -51.2 -51.8 -52.9 -54.7 -55.6 -55.6 -55.7 100mb Dewpt(C): -88.2 -88.6 -88.8 -83.7 -83.2 -83.4 -87.0 -86.9 -81.9 -86.8 -87.6 -88.9 -89.5 -89.5 -89.6 100mb RH (%): 1 1 1 2 2 2 1 1 2 1 1 1 1 1 1 100mb Dir: 237 234 227 237 222 239 245 240 232 253 272 268 256 251 259 100mb Speed(kt): 34 23 28 25 23 27 25 17 21 17 17 18 19 25 19