Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 0Z MAY 21, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 995.8 995.3 994.5 993.9 991.4 991.0 990.0 989.6 987.0 987.3 988.1 990.7 990.1 992.2 992.9 Mean SLP (mb): 1019.9 1019.7 1019.0 1017.7 1014.9 1014.8 1014.2 1013.4 1010.5 1011.5 1012.6 1015.3 1014.0 1016.6 1017.6 2m agl Tmp (F): 66.4 57.4 50.3 72.4 77.7 66.5 56.0 70.6 74.9 57.3 48.9 51.3 65.9 52.3 48.2 2m agl Dewpt(F): 52.1 49.7 49.6 51.2 47.2 50.6 47.0 54.8 56.4 51.7 48.2 49.9 53.6 47.8 45.5 2m agl RH (%): 59 75 97 46 33 55 71 56 51 81 97 95 64 84 90 10m agl Dir: 312 322 62 81 11 353 48 312 318 307 303 273 298 303 321 10m agl Spd(kt): 6 3 3 8 5 4 3 3 8 4 2 2 6 4 2 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): 14.5 0.2 0.0 0.0 10.8 0.0 0.0 0.9 0.0 0.0 2.6 8.2 0.1 0.0 2.6 Sfc CINH (J/kg): 0.0 0.0 0.0 0.0 -0.5 0.0 0.0 -1.6 -0.2 0.0 0.0 -0.1 -0.5 0.0 0.0 0-3km Hel(J/kg): 9.4 38.2 42.9 108.6 24.4 40.0 30.8 10.4 35.2 78.1 56.2 39.8 40.8 31.2 48.9 Precip H20 (in): 0.75 0.82 0.83 0.77 0.66 0.74 0.64 0.64 0.68 0.63 0.60 0.55 0.51 0.45 0.57 Lifted Index(C): 8.6 7.1 5.1 4.7 2.8 2.8 4.2 3.5 1.4 4.4 6.6 10.1 5.5 9.3 10.1 700mb VV(-ub/s): -2.4 -0.7 -0.2 -1.5 -1.2 -0.6 -0.9 -0.8 -1.0 -0.5 0.6 -0.2 -0.6 -0.9 -0.1 Thk1000-500mb(m)5586.1 5593.5 5581.7 5591.3 5605.7 5601.6 5594.4 5601.0 5630.0 5625.6 5608.1 5595.5 5611.4 5590.9 5568.8 Thk1000-850mb(m)1357.0 1360.1 1362.0 1378.1 1390.5 1384.7 1375.9 1378.9 1388.5 1374.7 1359.2 1351.2 1367.3 1355.9 1346.3 Thk850-700mb(m):1582.6 1589.8 1587.3 1583.2 1589.3 1591.1 1590.0 1588.9 1597.0 1600.4 1598.7 1597.3 1598.3 1595.0 1588.8 SWEAT Index: 81.8 89.0 90.3 77.1 46.5 80.9 60.2 49.9 16.7 23.9 31.5 37.4 41.1 53.6 51.2 Total Totals Idx 32.6 38.9 42.2 41.8 44.0 44.8 43.5 41.5 38.3 33.5 32.0 33.9 28.6 17.2 33.2 Frz Hgt(ft amsl) 11151 11746 10952 10759 11032 11001 10575 10633 11937 12312 11993 12027 12148 11858 11318 0WetBlbHgt(amsl) 7049 8171 8159 8505 7849 8119 7850 7872 7732 7620 7215 6948 6489 7033 8545 Equil Prs (mb): 996 995 994 714 499 991 990 639 392 987 988 991 990 992 993 Equil Hgt(amsl): 26 26 26 9694 18883 26 26 12482 24683 26 26 26 26 26 26 Hail Size(in): 0.00 -0.04 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: 32.0 41.1 38.6 47.2 55.0 45.3 44.9 46.3 49.9 47.9 47.2 48.4 50.8 48.8 48.2 Showalter Index: 10.5 6.8 4.9 5.3 4.2 3.3 4.2 5.3 7.0 9.7 10.7 9.9 12.4 15.2 10.7 Cap Strength(C):-999.9 -999.9 -999.9 0.0 0.0 -999.9 -999.9 0.0 0.0 -999.9 -999.9 5.3 -999.9 -999.9 -999.9 Storm Dir (deg): 13 33 45 67 32 23 1 351 321 300 294 291 299 303 296 Storm Spd (kts): 10 11 9 11 8 8 6 5 6 7 8 8 9 11 12 2m HeatIndex(F): 66 57 50 72 78 67 56 71 75 57 49 51 66 52 48 2m WindChill(F): 66 57 50 72 78 67 56 71 75 57 49 51 66 52 48 1000mb GPH (m): 168 165 157 152 129 126 119 114 91 96 104 126 119 138 144 950mb GPH (m): 603 597 587 592 574 567 554 554 535 529 529 551 555 566 567 950mb Temp (C): 13.0 12.6 12.6 17.2 20.9 18.7 17.5 17.0 19.3 15.2 10.9 8.1 14.2 10.6 7.7 950mb Dewpt(C): 9.6 9.3 8.4 7.6 5.1 8.8 5.8 5.3 11.5 10.8 9.0 7.3 9.9 9.3 4.1 950mb RH (%): 80 80 75 52 35 51 45 45 59 75 88 95 75 92 78 950mb Dir: 323 356 65 87 16 8 49 323 323 345 331 313 302 334 324 950mb Speed(kt): 7 13 6 13 7 15 5 3 10 11 5 2 7 7 2 900mb GPH (m): 1054 1049 1041 1050 1037 1029 1014 1013 996 989 984 1001 1009 1018 1016 900mb Temp (C): 8.8 10.7 12.4 14.3 16.3 16.2 15.3 15.2 16.2 15.9 13.2 11.3 12.3 11.8 10.5 900mb Dewpt(C): 7.0 7.2 6.5 3.2 3.9 6.1 3.0 1.0 3.6 4.9 4.6 4.1 0.1 -4.5 -4.7 900mb RH (%): 88 78 67 46 43 50 43 38 42 47 55 60 42 31 33 900mb Dir: 333 27 86 97 24 26 37 55 336 268 287 305 317 308 309 900mb Speed(kt): 8 11 11 22 8 10 3 3 10 1 5 7 8 8 9 850mb GPH (m): 1525 1525 1519 1530 1519 1511 1495 1493 1479 1471 1463 1477 1486 1494 1491 850mb Temp (C): 6.6 9.6 11.0 11.0 11.9 12.2 11.7 11.7 13.0 12.9 12.0 10.6 10.9 10.8 9.3 850mb Dewpt(C): 3.6 3.0 3.3 2.1 0.6 3.9 2.6 2.2 -0.4 -3.2 -4.2 -1.9 -8.7 -20.4 -4.0 850mb RH (%): 81 63 58 54 45 56 53 52 39 32 31 41 24 9 39 850mb Dir: 34 25 98 116 36 18 11 70 198 207 255 271 300 315 295 850mb Speed(kt): 2 11 13 14 9 6 3 2 2 3 6 7 8 12 11 800mb GPH (m): 2023 2026 2022 2031 2022 2015 1998 1996 1985 1977 1968 1980 1989 1996 1991 800mb Temp (C): 6.6 7.7 7.6 6.8 7.7 8.1 8.0 7.9 9.5 10.0 9.5 8.8 9.5 8.9 7.9 800mb Dewpt(C): -5.7 -1.6 0.0 0.9 0.1 1.0 -2.9 -1.5 -8.0 -9.6 -10.5 -11.4 -19.0 -12.7 -4.8 800mb RH (%): 41 51 58 65 58 61 46 51 28 24 23 23 11 20 40 800mb Dir: 74 29 101 108 58 4 17 109 190 215 235 255 281 311 282 800mb Speed(kt): 4 10 10 7 10 5 3 2 5 8 10 10 9 12 13 750mb GPH (m): 2550 2555 2549 2557 2551 2544 2527 2525 2516 2509 2499 2511 2521 2527 2520 750mb Temp (C): 4.5 5.1 3.8 2.7 4.5 4.8 5.0 4.4 5.9 6.7 6.7 7.0 7.2 6.3 4.9 750mb Dewpt(C): -20.9 -7.6 -5.7 -2.0 -11.3 -8.2 -9.1 -8.5 -10.6 -13.8 -17.9 -23.8 -24.0 -13.4 -4.0 750mb RH (%): 14 39 50 71 31 38 35 38 29 21 15 9 9 23 52 750mb Dir: 19 30 63 51 67 347 358 255 202 217 234 256 270 297 271 750mb Speed(kt): 7 11 7 5 9 6 5 1 6 11 12 10 10 12 15 700mb GPH (m): 3108 3114 3107 3113 3108 3102 3085 3082 3076 3072 3062 3075 3085 3089 3079 700mb Temp (C): 1.4 2.3 1.2 0.7 1.3 1.6 0.8 0.8 2.8 3.9 4.4 4.8 4.2 3.2 2.2 700mb Dewpt(C): -11.4 -15.1 -15.8 -14.3 -16.4 -13.0 -7.4 -13.4 -21.3 -25.4 -25.8 -28.3 -16.0 -13.8 -17.4 700mb RH (%): 38 26 27 32 26 33 54 34 15 10 9 7 21 28 22 700mb Dir: 3 18 12 24 13 0 336 267 232 231 251 261 262 281 262 700mb Speed(kt): 10 12 9 10 6 9 6 3 7 10 13 12 13 13 18 650mb GPH (m): 3700 3709 3699 3704 3701 3695 3676 3673 3671 3670 3660 3673 3682 3685 3673 650mb Temp (C): -1.4 -0.6 -1.9 -1.7 -1.7 -2.2 -2.7 -2.1 -0.2 0.6 0.0 -0.1 0.1 -0.4 -1.4 650mb Dewpt(C): -13.0 -16.6 -16.8 -16.2 -15.0 -11.2 -18.9 -24.9 -29.1 -18.4 -9.6 -10.8 -14.8 -22.1 -19.5 650mb RH (%): 41 29 31 32 36 50 28 16 9 23 49 44 32 18 24 650mb Dir: 351 5 350 7 351 350 315 307 277 262 261 254 257 264 257 650mb Speed(kt): 14 15 14 14 12 11 9 6 8 10 13 16 16 15 22 600mb GPH (m): 4334 4343 4331 4336 4333 4325 4306 4305 4307 4306 4296 4308 4318 4319 4306 600mb Temp (C): -3.7 -3.6 -5.2 -5.4 -5.4 -6.2 -4.9 -4.2 -3.6 -4.2 -4.1 -3.1 -3.4 -4.1 -5.0 600mb Dewpt(C): -20.1 -19.8 -16.3 -14.2 -15.6 -23.5 -35.2 -42.6 -22.8 -14.3 -16.6 -30.8 -34.8 -29.8 -19.2 600mb RH (%): 27 28 42 50 45 25 8 3 21 45 37 10 7 12 32 600mb Dir: 340 0 344 354 345 338 308 315 296 270 270 258 254 251 257 600mb Speed(kt): 21 21 18 17 17 12 13 11 10 12 14 16 16 21 26 550mb GPH (m): 5017 5025 5009 5014 5009 5000 4985 4985 4988 4988 4978 4990 4999 4998 4984 550mb Temp (C): -6.7 -8.1 -9.0 -9.1 -10.4 -10.0 -8.8 -8.7 -8.1 -7.5 -7.3 -8.4 -8.2 -8.8 -9.5 550mb Dewpt(C): -24.5 -16.4 -16.3 -18.8 -21.0 -40.0 -39.3 -29.9 -20.7 -26.7 -32.0 -25.5 -31.2 -32.0 -18.5 550mb RH (%): 23 51 56 46 42 7 7 17 36 20 12 24 14 14 48 550mb Dir: 335 354 340 346 340 340 317 318 291 284 272 259 254 245 254 550mb Speed(kt): 28 29 23 21 19 17 20 14 11 14 14 18 22 25 30 500mb GPH (m): 5754 5758 5739 5743 5734 5728 5713 5715 5721 5722 5712 5722 5730 5729 5713 500mb Temp (C): -11.2 -13.2 -14.0 -14.4 -15.7 -14.4 -14.6 -13.8 -12.8 -11.9 -12.1 -12.6 -13.2 -13.5 -13.9 500mb Dewpt(C): -26.6 -19.6 -21.1 -24.3 -26.4 -46.1 -33.4 -22.5 -26.5 -32.1 -45.2 -44.7 -37.0 -35.8 -23.8 500mb RH (%): 27 59 55 43 40 5 19 48 31 18 5 5 12 14 43 500mb Dir: 338 341 334 339 325 339 318 321 301 297 274 254 257 248 255 500mb Speed(kt): 35 32 26 24 21 22 23 20 14 18 19 23 24 30 29 450mb GPH (m): 6552 6551 6531 6533 6520 6515 6502 6507 6517 6518 6508 6516 6524 6521 6506 450mb Temp (C): -17.6 -19.4 -19.0 -19.7 -21.2 -21.3 -20.1 -19.1 -17.9 -18.1 -17.9 -18.0 -19.3 -18.9 -18.9 450mb Dewpt(C): -29.9 -24.9 -28.3 -30.5 -39.6 -37.0 -28.9 -29.7 -27.3 -28.5 -27.0 -44.2 -31.4 -40.0 -31.2 450mb RH (%): 34 62 44 38 18 24 46 39 44 40 46 9 34 15 34 450mb Dir: 340 333 335 332 320 338 329 328 317 291 277 255 255 253 265 450mb Speed(kt): 41 31 30 21 25 28 26 22 16 21 26 28 30 35 30 400mb GPH (m): 7422 7416 7398 7397 7377 7372 7364 7374 7385 7387 7377 7384 7388 7386 7371 400mb Temp (C): -24.7 -25.0 -24.4 -25.4 -28.0 -27.4 -25.6 -24.2 -24.3 -24.1 -24.7 -24.6 -25.0 -25.5 -25.2 400mb Dewpt(C): -32.5 -30.1 -34.4 -41.9 -39.7 -39.7 -37.1 -36.7 -31.4 -30.1 -33.7 -31.5 -27.9 -32.3 -41.4 400mb RH (%): 49 63 40 21 33 31 34 31 53 58 44 54 77 54 22 400mb Dir: 341 333 334 325 313 330 331 329 318 291 276 258 251 253 273 400mb Speed(kt): 47 37 33 22 29 35 33 27 24 23 31 35 36 36 36 350mb GPH (m): 8376 8376 8358 8349 8318 8320 8321 8334 8346 8346 8332 8339 8345 8341 8323 350mb Temp (C): -32.4 -30.8 -30.6 -33.3 -35.6 -33.3 -31.7 -31.0 -31.0 -31.0 -32.3 -32.6 -31.8 -32.5 -33.5 350mb Dewpt(C): -37.5 -37.0 -41.5 -43.0 -45.4 -46.0 -38.9 -44.1 -40.0 -39.3 -35.9 -35.7 -34.9 -48.5 -42.1 350mb RH (%): 61 56 35 38 37 28 50 28 42 45 71 74 74 20 43 350mb Dir: 335 329 328 310 296 338 324 321 313 297 278 260 248 256 266 350mb Speed(kt): 55 50 35 26 32 42 38 32 30 26 35 38 39 33 40 300mb GPH (m): 9445 9453 9435 9413 9375 9387 9393 9407 9420 9419 9402 9408 9414 9407 9385 300mb Temp (C): -40.2 -38.7 -38.2 -41.3 -42.6 -40.2 -39.7 -40.0 -39.3 -39.5 -40.2 -40.6 -41.0 -41.3 -42.8 300mb Dewpt(C): -45.3 -45.9 -48.3 -50.6 -58.8 -50.5 -47.4 -47.2 -46.4 -45.1 -44.5 -43.9 -44.6 -46.9 -55.4 300mb RH (%): 60 48 35 38 17 34 45 48 48 57 64 72 69 56 26 300mb Dir: 340 331 318 294 313 344 332 322 308 295 273 259 249 252 278 300mb Speed(kt): 65 53 45 38 37 54 40 37 38 33 36 42 43 39 32 250mb GPH (m): 10663 10679 10662 10629 10581 10607 10612 10626 10642 10640 10619 10622 10625 10617 10585 250mb Temp (C): -49.8 -48.2 -48.0 -49.2 -50.6 -48.7 -49.6 -49.6 -49.0 -49.0 -49.8 -50.5 -50.8 -51.6 -53.2 250mb Dewpt(C): -56.4 -55.2 -54.5 -64.3 -66.4 -58.0 -56.4 -56.4 -55.0 -55.7 -54.6 -53.8 -55.3 -55.3 -60.6 250mb RH (%): 47 46 49 17 16 35 47 47 52 48 59 69 60 66 42 250mb Dir: 345 335 314 285 325 346 332 327 310 285 269 259 253 247 269 250mb Speed(kt): 71 56 51 53 44 63 52 50 42 39 38 44 52 51 33 200mb GPH (m): 12082 12110 12097 12061 12017 12043 12040 12046 12067 12068 12043 12042 12046 12031 11997 200mb Temp (C): -60.8 -59.2 -58.0 -57.9 -55.0 -56.7 -57.8 -59.9 -60.9 -59.0 -59.4 -59.6 -59.7 -60.3 -59.4 200mb Dewpt(C): -66.4 -65.1 -67.8 -70.8 -72.7 -65.4 -64.2 -65.8 -64.9 -64.8 -64.1 -64.2 -64.4 -65.1 -69.4 200mb RH (%): 50 49 30 20 11 35 46 49 61 50 56 57 56 56 29 200mb Dir: 354 347 314 284 317 341 323 324 310 290 269 259 252 248 255 200mb Speed(kt): 77 61 50 57 46 64 58 54 45 42 46 53 61 63 55 150mb GPH (m): 13836 13868 13870 13853 13840 13844 13837 13835 13847 13852 13821 13818 13819 13813 13789 150mb Temp (C): -64.4 -67.6 -66.3 -61.5 -57.4 -60.2 -61.0 -60.8 -62.4 -62.2 -63.7 -62.6 -62.3 -60.1 -59.8 150mb Dewpt(C): -75.5 -73.2 -73.5 -78.1 -83.5 -79.2 -77.6 -77.6 -78.1 -77.5 -76.9 -76.1 -76.4 -81.2 -82.2 150mb RH (%): 23 48 39 11 3 8 11 11 13 13 17 17 16 6 5 150mb Dir: 350 347 323 298 320 341 316 318 320 285 265 256 253 254 262 150mb Speed(kt): 60 55 40 38 37 39 37 43 36 28 40 45 48 45 39 100mb GPH (m): 16357 16370 16357 16373 16380 16379 16360 16361 16368 16368 16337 16344 16353 16361 16340 100mb Temp (C): -59.2 -59.7 -61.6 -61.0 -60.5 -59.8 -59.8 -59.5 -59.4 -59.7 -59.2 -58.6 -58.3 -58.0 -57.6 100mb Dewpt(C): -87.7 -88.2 -89.7 -89.2 -88.8 -88.2 -88.1 -88.0 -88.0 -88.2 -87.8 -87.4 -87.1 -86.9 -86.6 100mb RH (%): 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 100mb Dir: 329 353 342 337 335 333 327 321 305 283 265 245 247 257 260 100mb Speed(kt): 26 30 23 25 21 20 20 16 15 13 15 20 22 21 23