Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z MAY 21, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 994.9 993.9 991.0 991.0 990.6 990.9 988.2 988.7 989.4 991.8 991.7 993.1 993.5 992.7 989.1 Mean SLP (mb): 1019.7 1017.8 1014.5 1015.0 1015.1 1015.1 1011.9 1013.1 1014.0 1016.4 1015.7 1017.5 1018.2 1016.8 1012.7 2m agl Tmp (F): 47.0 69.3 77.7 62.9 51.0 57.1 69.8 52.5 49.6 50.9 62.8 52.5 47.2 61.2 71.4 2m agl Dewpt(F): 46.0 54.0 52.8 51.4 47.7 53.8 55.2 50.2 48.8 49.1 53.0 46.8 45.6 50.3 46.0 2m agl RH (%): 96 57 41 65 88 88 59 91 97 94 70 80 94 67 39 10m agl Dir: 90 52 337 328 278 288 309 307 291 262 309 301 58 278 262 10m agl Spd(kt): 3 4 6 5 1 5 8 4 3 3 5 3 1 2 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 0.01 0.01 0.01 0.01 0.01 0.01 Sfc CAPE (J/kg): 0.0 2.7 67.1 0.0 0.0 3.3 0.0 3.8 7.4 11.3 0.0 0.0 3.7 0.0 0.0 Sfc CINH (J/kg): 0.0 -7.7 -47.4 -0.2 -0.3 0.0 -0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0-3km Hel(J/kg): 40.2 111.6 14.4 76.7 41.1 16.6 21.9 51.9 34.7 21.6 23.4 33.6 39.6 90.3 125.4 Precip H20 (in): 0.72 0.77 0.77 0.64 0.59 0.59 0.60 0.58 0.53 0.53 0.51 0.50 0.52 0.50 0.55 Lifted Index(C): 6.9 3.7 -0.5 2.8 6.3 7.7 3.8 6.0 9.1 9.1 6.7 9.4 11.9 11.6 10.7 700mb VV(-ub/s): -0.3 -1.0 -0.9 -1.2 -0.1 -0.5 -0.9 -0.1 -0.1 -0.8 -0.9 -3.6 -0.9 -0.2 0.9 Thk1000-500mb(m)5579.0 5593.4 5609.4 5596.4 5581.5 5580.4 5611.4 5606.4 5590.1 5578.8 5591.7 5586.4 5578.6 5598.3 5629.8 Thk1000-850mb(m)1357.0 1376.9 1392.0 1379.1 1364.2 1362.8 1376.6 1361.2 1350.4 1345.4 1360.0 1354.3 1348.6 1360.0 1379.2 Thk850-700mb(m):1590.1 1584.9 1590.8 1590.6 1588.3 1585.7 1592.2 1597.3 1595.0 1594.5 1594.7 1595.5 1590.1 1590.9 1597.3 SWEAT Index: 45.8 64.5 68.2 29.1 29.3 31.0 22.2 23.6 36.8 43.9 53.5 50.8 49.9 43.3 62.7 Total Totals Idx 40.0 41.9 47.8 40.4 37.9 35.1 33.7 28.2 30.7 30.5 23.8 32.3 28.5 23.0 24.9 Frz Hgt(ft amsl) 10907 10563 11288 10977 10733 10750 12169 12201 11708 11889 11624 11519 11458 11631 11951 0WetBlbHgt(amsl) 8046 8351 8195 7707 7978 7476 7135 6968 6624 6065 6721 7679 8167 7452 7930 Equil Prs (mb): 995 690 320 991 991 991 988 989 989 992 992 993 993 993 989 Equil Hgt(amsl): 26 10578 29290 26 26 26 26 26 26 26 26 26 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: 42.2 44.4 51.4 42.2 40.5 41.9 48.0 46.0 47.9 49.1 47.9 47.4 49.2 52.8 57.9 Showalter Index: 6.3 5.3 1.9 6.3 7.8 9.4 9.9 12.6 11.7 12.0 13.9 10.7 12.7 15.1 13.9 Cap Strength(C):-999.9 0.0 -0.5 -999.9 -999.9 -999.9 -999.9 -999.9 6.0 4.4 -999.9 -999.9 -999.9 -999.9 -999.9 Storm Dir (deg): 46 56 2 360 340 341 333 319 314 317 320 321 307 285 267 Storm Spd (kts): 9 9 8 8 7 7 7 6 8 9 11 11 12 12 15 2m HeatIndex(F): 47 69 78 63 51 57 70 53 50 51 63 53 47 61 71 2m WindChill(F): 47 69 78 63 51 57 70 53 50 51 63 53 47 61 71 1000mb GPH (m): 161 151 125 127 125 127 102 109 115 135 133 146 150 141 109 950mb GPH (m): 588 589 571 564 554 556 542 537 539 559 566 573 572 572 550 950mb Temp (C): 11.2 15.7 20.9 17.1 13.7 13.0 16.4 11.9 6.9 6.8 12.1 10.2 8.6 12.7 17.4 950mb Dewpt(C): 8.0 9.0 9.0 9.4 8.0 6.8 10.8 10.3 6.7 6.6 10.0 7.7 5.0 2.4 4.9 950mb RH (%): 80 64 45 60 68 66 69 90 99 98 87 84 78 49 43 950mb Dir: 67 67 339 357 350 308 314 343 341 306 313 333 18 311 264 950mb Speed(kt): 3 7 7 17 6 4 10 10 4 2 6 6 1 2 2 900mb GPH (m): 1040 1048 1035 1025 1010 1011 999 992 989 1007 1018 1024 1022 1025 1008 900mb Temp (C): 11.3 14.9 16.5 15.4 13.7 13.5 14.0 12.9 11.4 10.0 11.0 11.2 11.6 11.7 14.7 900mb Dewpt(C): 5.1 2.4 7.4 3.4 3.2 -0.5 2.1 6.3 2.8 4.3 0.1 -4.7 -3.8 -4.6 -0.6 900mb RH (%): 65 42 54 44 48 38 44 63 55 67 46 32 33 31 34 900mb Dir: 67 107 350 11 344 344 331 349 315 321 322 331 341 306 229 900mb Speed(kt): 6 17 7 9 8 8 8 3 8 10 14 12 12 3 5 850mb GPH (m): 1518 1528 1517 1506 1489 1489 1479 1470 1465 1481 1493 1500 1498 1501 1488 850mb Temp (C): 11.5 11.8 12.5 12.1 11.0 10.6 11.4 11.3 10.0 9.2 10.4 10.9 10.2 10.5 12.5 850mb Dewpt(C): 0.3 0.8 2.8 -1.7 -2.8 -4.2 -3.4 -7.1 -4.3 -6.8 -14.0 -4.3 -7.1 -10.2 -8.0 850mb RH (%): 46 46 51 38 37 35 35 27 36 31 16 34 28 22 23 850mb Dir: 116 125 13 347 315 342 313 298 285 313 323 326 303 253 230 850mb Speed(kt): 9 15 6 4 4 5 4 3 7 10 14 13 13 9 15 800mb GPH (m): 2022 2031 2022 2009 1991 1991 1982 1973 1967 1982 1996 2003 2000 2004 1993 800mb Temp (C): 8.3 7.4 8.3 8.2 7.7 7.4 8.5 9.1 8.4 8.6 9.3 9.3 8.1 8.7 9.8 800mb Dewpt(C): -4.4 -0.4 -2.1 -4.7 -5.2 -4.0 -8.7 -12.2 -12.9 -20.8 -16.6 -5.6 -6.2 -12.3 -7.2 800mb RH (%): 40 57 47 39 39 44 28 21 20 11 14 34 35 21 29 800mb Dir: 120 124 86 301 296 313 253 259 271 308 326 318 280 252 232 800mb Speed(kt): 11 9 1 4 4 3 3 5 7 10 14 12 17 14 20 750mb GPH (m): 2550 2558 2550 2538 2520 2518 2511 2504 2498 2513 2527 2535 2529 2533 2525 750mb Temp (C): 4.5 3.1 4.1 4.5 4.5 4.0 5.4 6.9 6.8 7.1 6.3 6.1 5.2 5.3 6.1 750mb Dewpt(C): -7.0 -3.7 -5.4 -9.0 -6.3 -10.2 -16.5 -20.0 -25.3 -34.9 -16.4 -14.5 -6.5 -7.9 -9.7 750mb RH (%): 43 61 50 37 45 35 19 13 8 3 18 21 42 38 31 750mb Dir: 103 216 109 304 309 274 252 247 273 307 314 300 278 252 234 750mb Speed(kt): 9 1 3 6 6 5 5 7 9 10 13 12 20 19 24 700mb GPH (m): 3108 3113 3108 3096 3077 3075 3071 3067 3060 3075 3088 3095 3088 3092 3086 700mb Temp (C): 1.1 0.3 1.9 1.6 1.1 1.0 2.8 4.4 4.1 3.8 3.0 3.0 2.3 2.0 3.1 700mb Dewpt(C): -13.3 -11.7 -13.3 -9.4 -15.1 -18.8 -24.6 -24.6 -23.1 -19.8 -24.4 -17.2 -16.3 -14.7 -17.8 700mb RH (%): 33 40 31 44 29 21 11 10 12 16 11 21 24 28 20 700mb Dir: 12 4 330 323 304 266 276 264 278 289 294 287 271 250 235 700mb Speed(kt): 7 6 6 11 9 6 7 8 11 11 12 15 21 23 28 650mb GPH (m): 3700 3705 3702 3689 3669 3667 3667 3666 3658 3672 3683 3690 3682 3687 3682 650mb Temp (C): -1.9 -1.3 -1.5 -2.2 -2.2 -1.9 0.3 0.4 -0.7 -0.3 -0.9 -1.3 -1.1 -0.6 -0.2 650mb Dewpt(C): -16.6 -15.9 -12.3 -15.8 -22.8 -28.2 -22.9 -12.5 -11.1 -21.2 -18.9 -18.7 -17.8 -17.3 -18.6 650mb RH (%): 32 32 44 34 19 12 16 37 45 19 24 25 27 27 24 650mb Dir: 354 5 331 315 297 299 304 275 276 285 275 278 265 252 237 650mb Speed(kt): 15 14 14 12 12 8 10 9 12 13 15 17 21 26 31 600mb GPH (m): 4332 4338 4334 4320 4299 4299 4302 4301 4291 4306 4316 4322 4316 4322 4317 600mb Temp (C): -4.5 -5.2 -5.4 -5.7 -5.9 -4.4 -4.3 -4.2 -4.0 -4.9 -4.6 -5.0 -4.3 -3.5 -3.1 600mb Dewpt(C): -19.9 -15.7 -18.1 -28.8 -28.3 -22.7 -10.8 -19.1 -30.8 -18.4 -26.7 -24.6 -22.8 -20.7 -18.1 600mb RH (%): 29 44 37 15 15 23 61 31 11 34 16 20 22 25 31 600mb Dir: 349 350 331 311 301 320 305 270 277 280 268 274 259 256 238 600mb Speed(kt): 20 15 19 13 17 15 12 9 15 16 19 20 23 27 31 550mb GPH (m): 5011 5016 5010 4995 4978 4978 4982 4982 4972 4984 4995 5000 4996 5004 5001 550mb Temp (C): -9.4 -9.0 -10.4 -9.5 -8.6 -9.1 -8.7 -8.1 -7.9 -8.7 -9.1 -8.7 -8.4 -7.5 -6.8 550mb Dewpt(C): -19.0 -17.2 -18.0 -38.2 -49.0 -19.8 -20.7 -32.2 -34.8 -33.9 -20.9 -42.9 -24.7 -20.7 -18.9 550mb RH (%): 46 52 54 8 2 42 38 13 10 12 38 5 26 34 38 550mb Dir: 348 343 322 321 306 313 307 292 280 268 264 273 265 254 241 550mb Speed(kt): 22 20 21 16 20 18 13 12 17 18 22 23 23 27 34 500mb GPH (m): 5740 5745 5735 5723 5706 5707 5713 5715 5705 5714 5725 5732 5728 5740 5739 500mb Temp (C): -14.1 -14.6 -16.3 -15.0 -14.8 -14.3 -12.9 -12.0 -12.5 -14.0 -13.7 -12.9 -12.7 -11.3 -10.2 500mb Dewpt(C): -21.8 -21.3 -28.2 -37.1 -32.3 -19.1 -36.2 -54.4 -34.7 -20.7 -26.2 -45.5 -29.9 -26.7 -24.0 500mb RH (%): 53 57 36 14 22 67 13 2 14 57 35 5 23 27 32 500mb Dir: 342 332 318 332 309 310 301 302 284 268 264 269 274 257 240 500mb Speed(kt): 23 24 24 21 22 22 14 17 23 25 26 25 24 26 33 450mb GPH (m): 6532 6534 6519 6509 6495 6498 6510 6512 6500 6505 6517 6525 6524 6540 6542 450mb Temp (C): -18.5 -20.0 -21.8 -21.4 -19.9 -18.9 -18.2 -17.8 -18.5 -19.5 -19.2 -18.4 -17.5 -16.3 -15.7 450mb Dewpt(C): -28.2 -28.0 -33.0 -47.6 -34.0 -31.0 -37.8 -37.4 -36.5 -24.4 -36.6 -34.9 -35.4 -38.9 -31.2 450mb RH (%): 43 49 37 8 28 34 17 17 20 65 21 23 20 13 26 450mb Dir: 341 326 316 322 318 319 334 282 281 265 266 263 286 259 249 450mb Speed(kt): 26 22 28 26 26 24 16 19 29 27 29 26 26 30 36 400mb GPH (m): 7401 7397 7373 7365 7359 7365 7379 7380 7366 7369 7381 7392 7394 7413 7417 400mb Temp (C): -23.6 -25.6 -28.7 -27.5 -25.4 -24.3 -23.6 -24.4 -25.0 -25.6 -25.6 -24.9 -24.3 -23.3 -22.8 400mb Dewpt(C): -34.1 -46.6 -35.3 -38.7 -35.2 -41.6 -39.4 -31.0 -38.9 -31.0 -42.7 -40.9 -52.6 -49.9 -44.2 400mb RH (%): 39 13 54 35 41 20 23 55 27 61 20 22 6 8 13 400mb Dir: 338 315 304 325 322 328 327 288 280 267 271 266 302 263 256 400mb Speed(kt): 32 25 32 35 33 34 29 24 36 31 31 27 19 34 40 350mb GPH (m): 8361 8348 8315 8314 8315 8325 8339 8339 8321 8323 8333 8346 8350 8373 8379 350mb Temp (C): -30.7 -33.5 -34.6 -33.0 -31.5 -30.4 -30.9 -31.6 -32.1 -32.2 -33.2 -33.1 -32.7 -31.3 -30.4 350mb Dewpt(C): -42.2 -43.4 -56.6 -48.5 -38.1 -45.0 -44.5 -37.8 -39.4 -37.1 -49.8 -59.8 -68.1 -37.4 -34.0 350mb RH (%): 33 38 10 21 53 24 27 55 50 63 19 6 2 56 71 350mb Dir: 330 302 309 332 321 318 317 290 278 266 278 273 326 267 254 350mb Speed(kt): 36 29 38 46 41 42 34 28 37 41 31 27 16 25 39 300mb GPH (m): 9437 9411 9375 9383 9390 9402 9415 9410 9390 9391 9396 9408 9413 9444 9457 300mb Temp (C): -38.6 -41.8 -42.4 -39.9 -39.2 -38.8 -39.0 -40.0 -40.6 -40.9 -42.5 -42.7 -42.6 -40.9 -39.1 300mb Dewpt(C): -49.1 -51.2 -55.5 -50.7 -50.3 -51.0 -49.2 -45.1 -44.1 -46.1 -51.4 -52.1 -50.2 -48.0 -43.7 300mb RH (%): 34 37 24 32 31 28 35 59 70 59 39 37 45 48 63 300mb Dir: 318 291 315 339 333 322 311 294 276 264 268 297 313 284 261 300mb Speed(kt): 46 37 47 53 47 40 39 34 40 48 38 29 29 23 28 250mb GPH (m): 10663 10622 10580 10604 10613 10628 10638 10630 10605 10603 10601 10609 10614 10656 10676 250mb Temp (C): -48.3 -50.1 -51.4 -49.1 -48.7 -48.1 -48.8 -49.1 -50.2 -50.9 -51.5 -53.4 -53.9 -51.4 -50.2 250mb Dewpt(C): -56.0 -63.3 -64.1 -56.9 -54.5 -56.3 -54.9 -53.4 -54.2 -54.7 -58.6 -65.7 -62.6 -56.6 -62.1 250mb RH (%): 43 22 23 42 53 40 51 63 65 65 45 23 36 55 25 250mb Dir: 312 281 321 337 330 319 305 286 271 260 259 281 340 304 290 250mb Speed(kt): 53 52 53 66 60 47 46 42 46 53 58 35 34 29 22 200mb GPH (m): 12099 12050 12009 12035 12044 12059 12065 12057 12027 12021 12021 12017 12013 12060 12089 200mb Temp (C): -57.5 -57.8 -55.6 -57.4 -58.5 -59.6 -59.7 -59.3 -59.5 -59.6 -59.0 -60.0 -61.2 -63.7 -62.9 200mb Dewpt(C): -68.2 -72.3 -70.2 -65.3 -67.9 -64.3 -64.8 -64.7 -65.6 -64.9 -66.8 -68.0 -69.1 -67.9 -69.7 200mb RH (%): 27 16 17 38 31 56 54 52 47 52 39 37 37 59 42 200mb Dir: 311 279 320 335 326 318 301 283 272 259 256 261 296 319 297 200mb Speed(kt): 54 61 51 67 58 54 47 48 55 62 66 47 36 30 35 150mb GPH (m): 13877 13845 13830 13836 13835 13837 13848 13838 13809 13805 13807 13805 13794 13819 13835 150mb Temp (C): -65.9 -61.4 -58.1 -59.9 -61.5 -62.6 -61.2 -62.8 -62.2 -61.4 -60.4 -59.5 -60.2 -62.6 -64.2 150mb Dewpt(C): -74.1 -77.6 -82.4 -79.9 -77.5 -75.9 -76.6 -76.3 -77.0 -76.0 -79.6 -81.9 -82.6 -81.2 -78.9 150mb RH (%): 34 12 4 7 12 18 13 17 14 15 8 5 5 8 14 150mb Dir: 324 291 320 331 322 314 301 276 272 263 255 264 273 277 269 150mb Speed(kt): 40 41 42 43 44 45 37 37 49 47 49 40 30 28 25 100mb GPH (m): 16363 16364 16369 16371 16352 16357 16368 16360 16333 16335 16347 16350 16337 16351 16364 100mb Temp (C): -61.4 -59.9 -59.9 -60.1 -60.3 -59.2 -60.2 -59.4 -59.5 -58.9 -57.8 -58.2 -57.8 -58.3 -57.4 100mb Dewpt(C): -89.5 -88.3 -92.5 -88.5 -88.6 -87.9 -88.5 -87.9 -88.0 -87.6 -91.1 -87.1 -86.8 -91.5 -90.8 100mb RH (%): 2 2 1 2 2 2 2 2 2 2 1 2 2 1 1 100mb Dir: 339 330 334 323 323 322 295 291 260 264 253 256 268 254 257 100mb Speed(kt): 20 23 16 21 22 13 13 14 19 18 19 22 22 18 22