Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 0Z MAY 20, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 998.4 998.5 998.1 999.0 996.0 995.5 994.6 994.7 991.8 990.8 990.0 989.6 987.3 987.4 988.0 Mean SLP (mb): 1022.5 1023.0 1022.9 1023.7 1020.1 1019.9 1019.2 1018.5 1015.4 1014.6 1014.3 1013.5 1010.8 1011.5 1012.4 2m agl Tmp (F): 66.4 54.5 49.1 50.1 63.9 56.4 50.4 71.9 75.8 65.3 54.5 69.3 75.3 60.4 49.3 2m agl Dewpt(F): 52.6 50.3 47.1 47.5 51.9 48.5 48.2 43.3 46.8 48.3 45.5 54.9 55.2 52.2 48.5 2m agl RH (%): 60 85 93 91 64 74 92 35 34 53 71 59 48 74 97 10m agl Dir: 317 307 279 273 312 314 42 89 343 346 50 306 320 310 245 10m agl Spd(kt): 6 5 4 3 6 3 3 9 6 4 2 3 8 3 1 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 0.00 0.00 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 0.00 0.00 Sfc CAPE (J/kg): 106.5 2.1 8.3 15.5 1.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 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 -2.2 -4.8 0.0 -0.3 0-3km Hel(J/kg): 55.4 61.7 32.2 29.5 57.7 49.8 91.4 70.4 9.8 37.5 21.6 1.4 -10.2 79.5 46.3 Precip H20 (in): 0.89 0.80 0.74 0.69 0.57 0.60 0.72 0.63 0.61 0.65 0.58 0.63 0.67 0.62 0.58 Lifted Index(C): 4.4 7.7 12.3 11.6 9.3 9.3 7.7 7.5 4.1 2.7 6.7 4.2 1.9 4.3 6.1 700mb VV(-ub/s): -0.8 -1.8 -0.5 -1.5 -2.6 -1.5 -1.1 -1.2 -1.0 -0.8 -0.8 -1.2 -1.8 0.6 0.4 Thk1000-500mb(m)5534.0 5531.7 5522.0 5542.1 5588.9 5601.2 5590.5 5591.4 5606.5 5593.3 5583.0 5603.1 5632.8 5633.4 5616.2 Thk1000-850mb(m)1356.0 1345.4 1334.4 1333.3 1356.6 1360.2 1365.2 1375.0 1385.7 1381.6 1372.5 1377.7 1389.4 1380.4 1365.7 Thk850-700mb(m):1562.9 1569.4 1568.7 1573.2 1584.3 1590.0 1584.7 1583.6 1589.7 1591.0 1590.0 1591.3 1598.1 1600.2 1598.1 SWEAT Index: 96.2 56.2 41.7 61.6 51.0 48.9 86.3 44.1 36.4 36.6 29.8 23.7 17.2 19.0 26.3 Total Totals Idx 40.2 36.8 30.9 31.2 25.7 33.0 39.2 37.8 41.0 43.7 36.4 37.7 38.1 34.6 34.0 Frz Hgt(ft amsl) 9223 10256 9896 10310 11378 12217 11561 11435 11442 10933 10517 10517 11626 12647 12336 0WetBlbHgt(amsl) 7421 6417 6277 6742 5867 7109 8044 7671 7341 7448 7602 8767 8804 8259 7577 Equil Prs (mb): 711 999 998 999 996 995 995 995 992 991 990 638 470 987 988 Equil Hgt(amsl): 9775 26 26 26 26 26 26 26 26 26 26 12541 20299 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: 36.7 26.7 39.4 3.7 42.6 46.9 45.1 57.0 55.8 47.0 46.5 43.9 47.8 43.4 46.9 Showalter Index: 7.1 9.2 12.7 12.0 14.6 10.4 6.7 8.0 6.1 4.4 8.4 7.6 7.1 9.0 9.5 Cap Strength(C):-999.9 -999.9 2.3 1.6 3.6 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 0.0 0.0 -999.9 -999.9 Storm Dir (deg): 351 351 358 24 20 35 64 67 15 7 24 25 347 308 294 Storm Spd (kts): 13 12 9 10 12 13 12 11 8 8 6 5 5 6 7 2m HeatIndex(F): 66 55 49 50 64 56 50 72 76 65 55 69 75 60 49 2m WindChill(F): 66 55 49 50 64 56 50 72 76 65 55 69 75 60 49 1000mb GPH (m): 190 192 188 195 170 166 158 158 132 125 120 115 93 97 103 950mb GPH (m): 625 620 611 618 603 597 589 599 576 564 553 553 538 532 531 950mb Temp (C): 12.9 10.2 6.1 6.0 12.6 12.4 14.0 17.1 19.8 18.2 16.7 16.7 19.6 17.0 12.9 950mb Dewpt(C): 9.5 9.2 5.7 5.8 9.3 8.0 6.3 2.2 5.1 8.4 6.0 4.9 10.6 10.2 9.7 950mb RH (%): 79 94 97 98 80 74 59 36 37 52 48 45 55 63 80 950mb Dir: 322 332 328 301 318 354 84 92 345 1 27 318 326 350 319 950mb Speed(kt): 7 15 6 2 9 15 16 15 8 16 5 3 10 11 3 900mb GPH (m): 1076 1068 1055 1060 1054 1050 1045 1056 1038 1025 1012 1012 1000 994 988 900mb Temp (C): 8.6 7.2 6.5 6.1 8.8 11.3 13.6 13.7 15.3 15.7 14.7 15.0 16.4 16.7 14.6 900mb Dewpt(C): 8.0 5.2 2.8 4.2 7.4 3.3 3.1 -2.6 4.2 4.7 1.3 3.0 3.0 4.3 2.5 900mb RH (%): 96 87 77 88 90 57 48 32 46 47 40 44 40 43 43 900mb Dir: 327 345 338 7 335 26 93 97 356 21 20 78 338 30 294 900mb Speed(kt): 9 14 3 4 11 14 23 22 8 9 4 4 10 2 4 850mb GPH (m): 1546 1537 1522 1528 1526 1526 1523 1533 1518 1506 1492 1492 1483 1477 1469 850mb Temp (C): 5.2 5.3 4.9 5.5 8.6 10.4 10.6 10.2 11.3 11.8 12.0 12.1 13.3 13.5 12.6 850mb Dewpt(C): 3.5 0.9 -2.0 0.9 -6.2 -3.0 1.9 -2.0 -0.7 0.6 -4.5 -1.1 -1.1 -2.5 -2.9 850mb RH (%): 89 73 61 72 34 38 54 42 43 45 31 39 36 32 34 850mb Dir: 318 310 343 11 24 37 101 96 24 357 15 84 1 189 256 850mb Speed(kt): 10 9 7 8 10 9 19 13 8 4 4 3 1 2 5 800mb GPH (m): 2038 2030 2015 2023 2025 2028 2025 2034 2020 2009 1995 1996 1989 1984 1974 800mb Temp (C): 1.8 3.2 3.5 4.4 6.9 7.8 6.5 6.4 7.4 7.9 8.1 8.6 10.0 10.2 9.9 800mb Dewpt(C): 1.0 -5.3 -5.5 -4.9 -23.5 -7.9 -0.7 -1.0 -3.1 -1.5 -5.7 -6.4 -4.5 -7.0 -9.7 800mb RH (%): 95 53 51 50 9 32 60 59 47 51 37 34 35 29 24 800mb Dir: 311 299 348 16 20 34 99 42 71 1 18 60 161 208 229 800mb Speed(kt): 9 11 11 9 9 10 13 7 9 3 5 3 2 5 9 750mb GPH (m): 2557 2551 2537 2546 2552 2556 2551 2560 2549 2538 2524 2525 2521 2516 2506 750mb Temp (C): 0.2 2.3 2.2 2.7 4.9 5.5 3.8 3.7 5.6 5.3 4.8 4.8 5.9 6.4 6.0 750mb Dewpt(C): -4.5 -11.4 -12.7 -9.8 -24.6 -23.0 -6.0 -10.7 -34.7 -29.8 -9.9 -3.1 -2.8 -8.2 -11.1 750mb RH (%): 70 35 32 39 10 11 48 34 4 6 33 56 53 34 28 750mb Dir: 324 324 341 10 5 26 45 39 55 336 19 36 180 215 230 750mb Speed(kt): 15 17 12 10 13 14 7 12 7 6 9 4 3 9 11 700mb GPH (m): 3109 3106 3091 3101 3111 3116 3108 3117 3108 3097 3082 3084 3081 3077 3067 700mb Temp (C): -0.3 0.1 -0.3 0.2 2.0 2.4 1.8 1.6 2.2 1.7 0.9 0.7 2.1 3.1 3.8 700mb Dewpt(C): -10.4 -14.9 -8.9 -8.6 -22.6 -16.4 -19.7 -23.8 -23.0 -16.4 -9.1 -6.9 -14.1 -21.3 -31.3 700mb RH (%): 46 31 52 52 14 24 19 13 14 25 47 57 29 15 6 700mb Dir: 320 325 331 4 356 18 11 22 358 349 5 12 202 230 249 700mb Speed(kt): 19 19 13 11 15 17 13 13 6 9 7 3 4 10 10 650mb GPH (m): 3698 3696 3679 3692 3704 3712 3702 3711 3702 3690 3673 3674 3675 3675 3665 650mb Temp (C): -3.6 -3.4 -3.9 -2.5 -1.3 0.1 -0.8 -1.0 -1.3 -2.5 -3.4 -2.6 -0.6 1.2 0.5 650mb Dewpt(C): -13.0 -9.4 -8.1 -10.7 -15.3 -21.5 -24.8 -23.3 -15.5 -9.0 -10.0 -19.8 -32.5 -41.6 -22.9 650mb RH (%): 48 63 73 53 34 18 15 17 33 61 60 26 7 3 16 650mb Dir: 318 322 320 359 350 12 3 8 341 341 336 345 276 276 264 650mb Speed(kt): 22 18 14 12 17 20 18 14 11 10 7 4 4 9 11 600mb GPH (m): 4325 4324 4307 4324 4338 4349 4337 4344 4334 4319 4300 4306 4311 4312 4301 600mb Temp (C): -7.4 -7.1 -7.4 -4.7 -3.5 -2.6 -3.9 -4.8 -5.4 -6.6 -7.0 -4.0 -2.6 -3.0 -3.1 600mb Dewpt(C): -14.2 -13.6 -10.5 -20.3 -23.6 -24.8 -21.5 -14.6 -10.3 -13.9 -27.8 -55.5 -40.7 -27.7 -23.0 600mb RH (%): 58 60 78 29 20 17 24 46 68 56 18 1 4 13 20 600mb Dir: 319 318 320 355 349 4 355 358 325 323 331 341 320 282 262 600mb Speed(kt): 26 19 18 20 22 25 22 16 15 12 10 13 10 10 13 550mb GPH (m): 4999 4997 4981 5004 5021 5033 5017 5022 5011 4994 4975 4987 4994 4995 4985 550mb Temp (C): -11.0 -10.8 -9.9 -8.0 -6.4 -6.8 -8.4 -9.5 -9.6 -10.8 -9.7 -8.2 -7.7 -7.2 -6.9 550mb Dewpt(C): -17.6 -16.6 -16.1 -23.9 -30.8 -24.8 -18.8 -14.4 -17.1 -29.5 -45.9 -39.6 -31.3 -25.3 -29.2 550mb RH (%): 59 63 60 27 13 23 43 68 55 21 4 6 14 23 15 550mb Dir: 323 317 322 348 349 351 351 347 322 311 337 344 321 282 276 550mb Speed(kt): 32 23 23 27 28 29 24 16 18 16 17 16 12 12 12 500mb GPH (m): 5724 5723 5710 5737 5759 5767 5749 5750 5739 5718 5703 5718 5726 5730 5719 500mb Temp (C): -15.8 -15.3 -14.0 -12.4 -11.7 -12.8 -13.4 -14.8 -15.2 -15.6 -14.4 -13.4 -13.0 -11.8 -12.1 500mb Dewpt(C): -20.6 -21.3 -22.4 -28.2 -33.2 -24.4 -22.5 -17.1 -24.9 -41.2 -42.4 -38.0 -22.9 -33.2 -27.8 500mb RH (%): 67 61 50 26 15 38 47 83 44 10 8 11 44 16 27 500mb Dir: 323 317 329 349 348 338 346 325 317 311 345 348 321 298 293 500mb Speed(kt): 34 27 28 35 32 31 25 19 21 21 22 17 16 16 16 450mb GPH (m): 6510 6510 6502 6533 6554 6561 6541 6538 6526 6501 6495 6511 6522 6528 6517 450mb Temp (C): -21.2 -20.8 -19.1 -18.2 -18.6 -18.8 -19.6 -20.4 -21.0 -21.5 -18.2 -18.4 -17.8 -17.7 -17.6 450mb Dewpt(C): -27.3 -26.0 -29.9 -38.5 -32.0 -30.1 -22.9 -23.3 -31.5 -44.1 -47.5 -32.6 -30.0 -26.5 -32.3 450mb RH (%): 59 63 39 16 31 37 75 78 39 12 6 28 34 47 27 450mb Dir: 324 321 335 353 349 338 332 327 308 310 342 338 331 291 282 450mb Speed(kt): 36 32 33 42 37 29 25 24 24 24 28 23 18 20 23 400mb GPH (m): 7367 7370 7367 7399 7421 7425 7404 7400 7385 7362 7363 7381 7391 7396 7386 400mb Temp (C): -28.0 -26.6 -25.4 -25.6 -25.4 -26.2 -25.4 -25.8 -27.2 -25.2 -24.3 -23.5 -23.8 -24.2 -24.2 400mb Dewpt(C): -34.5 -30.2 -36.8 -49.0 -40.9 -28.4 -31.0 -29.7 -48.3 -56.1 -39.4 -40.9 -31.9 -31.8 -34.2 400mb RH (%): 55 72 35 10 23 82 60 71 13 4 24 20 48 50 40 400mb Dir: 325 324 338 2 346 337 327 326 297 328 335 335 327 297 285 400mb Speed(kt): 36 34 38 51 44 33 32 25 28 37 34 31 26 21 27 350mb GPH (m): 8311 8320 8319 8350 8372 8377 8361 8353 8331 8320 8320 8341 8353 8357 8343 350mb Temp (C): -34.8 -33.6 -33.6 -33.8 -34.1 -32.9 -31.5 -32.5 -34.9 -31.8 -32.2 -31.2 -30.2 -30.2 -32.3 350mb Dewpt(C): -39.9 -37.9 -44.7 -49.6 -43.2 -36.1 -35.9 -34.9 -49.3 -48.4 -38.4 -47.6 -38.5 -37.9 -35.9 350mb RH (%): 61 66 33 20 41 73 66 80 23 19 55 20 46 48 71 350mb Dir: 333 328 338 2 346 338 333 315 289 335 327 333 319 289 286 350mb Speed(kt): 39 34 43 63 48 43 38 27 31 44 44 36 34 27 31 300mb GPH (m): 9371 9381 9379 9411 9434 9446 9436 9423 9392 9388 9388 9411 9430 9434 9414 300mb Temp (C): -42.3 -42.4 -42.8 -42.6 -41.6 -40.2 -39.5 -39.7 -41.4 -40.6 -40.6 -40.5 -39.4 -38.8 -40.0 300mb Dewpt(C): -48.1 -46.2 -48.9 -56.6 -45.1 -44.3 -43.9 -46.7 -54.9 -53.4 -50.9 -49.8 -48.5 -42.4 -43.6 300mb RH (%): 54 67 53 22 70 65 64 49 24 26 34 38 39 70 70 300mb Dir: 335 330 341 358 333 337 330 307 306 340 332 332 319 297 275 300mb Speed(kt): 49 36 44 68 59 56 46 36 38 52 52 42 38 32 30 250mb GPH (m): 10577 10586 10579 10615 10647 10664 10658 10643 10606 10604 10604 10627 10650 10658 10634 250mb Temp (C): -51.9 -52.4 -53.1 -52.1 -50.4 -49.2 -48.7 -49.3 -49.9 -49.8 -49.8 -49.7 -49.6 -49.2 -49.4 250mb Dewpt(C): -58.3 -56.2 -57.9 -62.3 -54.5 -53.9 -54.2 -59.8 -56.0 -60.7 -56.6 -56.8 -55.6 -52.8 -56.3 250mb RH (%): 49 65 57 30 63 60 54 31 51 29 46 45 51 67 46 250mb Dir: 335 333 341 350 343 342 328 301 321 341 339 335 321 296 266 250mb Speed(kt): 57 44 41 75 72 64 51 46 46 60 62 52 44 38 38 200mb GPH (m): 11986 11992 11991 12022 12068 12090 12091 12073 12035 12032 12029 12054 12072 12080 12058 200mb Temp (C): -62.4 -61.4 -60.0 -62.4 -59.8 -59.8 -58.2 -58.4 -57.5 -56.9 -58.4 -58.8 -60.1 -60.0 -59.7 200mb Dewpt(C): -67.2 -65.6 -64.2 -66.0 -64.3 -63.7 -64.9 -69.0 -66.6 -66.2 -64.3 -65.2 -66.0 -65.3 -63.2 200mb RH (%): 55 60 60 64 57 62 44 27 33 32 49 46 48 52 65 200mb Dir: 337 336 346 344 352 349 328 298 322 334 336 328 318 296 273 200mb Speed(kt): 72 57 77 96 91 73 56 54 49 66 66 59 52 43 45 150mb GPH (m): 13772 13783 13783 13803 13833 13853 13863 13854 13841 13841 13832 13849 13859 13865 13834 150mb Temp (C): -59.0 -59.2 -59.6 -60.2 -63.0 -64.8 -65.8 -63.1 -58.4 -60.8 -58.8 -60.8 -61.2 -62.1 -62.8 150mb Dewpt(C): -81.4 -79.5 -80.9 -80.2 -77.3 -76.3 -76.8 -78.3 -82.6 -78.9 -78.9 -79.7 -78.5 -77.7 -77.7 150mb RH (%): 5 7 6 7 15 22 23 13 4 9 7 8 10 13 14 150mb Dir: 328 331 345 345 349 343 334 310 321 331 333 326 318 292 269 150mb Speed(kt): 41 51 53 58 63 62 48 37 38 44 42 41 31 25 38 100mb GPH (m): 16321 16334 16318 16328 16352 16360 16352 16367 16373 16375 16355 16369 16372 16376 16344 100mb Temp (C): -57.4 -57.8 -59.3 -58.4 -59.1 -59.6 -61.6 -61.4 -60.6 -59.9 -60.3 -60.0 -60.4 -60.0 -60.0 100mb Dewpt(C): -90.9 -91.2 -87.9 -91.6 -91.7 -88.0 -89.7 -89.5 -88.9 -91.8 -88.7 -88.5 -84.0 -88.4 -88.4 100mb RH (%): 1 1 2 1 1 2 2 2 2 1 2 2 4 2 2 100mb Dir: 325 324 330 338 334 354 349 341 336 331 343 337 306 297 259 100mb Speed(kt): 19 22 30 29 28 34 15 21 19 22 20 12 15 11 14