Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z SEP 21, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 991.2 992.6 991.3 992.8 992.8 994.4 993.2 994.8 995.7 996.8 995.0 994.8 991.6 990.2 989.3 Mean SLP (mb): 1015.5 1016.9 1015.3 1017.0 1017.1 1018.6 1017.3 1019.1 1020.3 1021.3 1019.2 1019.3 1016.1 1014.4 1013.1 2m agl Tmp (F): 52.3 56.3 64.9 59.4 55.9 58.7 63.6 56.1 52.6 57.3 63.2 53.0 50.0 61.5 66.0 2m agl Dewpt(F): 51.9 53.3 53.9 53.8 53.5 53.0 50.6 47.4 47.4 49.2 46.1 44.7 44.4 47.2 46.2 2m agl RH (%): 99 90 67 81 91 81 62 72 82 74 53 73 81 59 48 10m agl Dir: 40 256 292 287 277 273 274 329 266 231 320 2 43 280 274 10m agl Spd(kt): 1 3 5 4 4 4 6 3 0 3 6 2 2 3 4 6hr Precip (in): 0.00 0.00 0.00 0.00 0.01 0.01 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 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 Sfc CAPE (J/kg): 0.0 3.9 0.4 14.9 25.9 36.2 25.4 0.1 0.0 1.5 2.4 0.0 0.0 0.0 0.0 Sfc CINH (J/kg): 0.0 0.0 0.0 -0.3 0.0 0.0 0.0 -0.4 -1.2 -0.9 0.0 0.0 0.0 0.0 0.0 0-3km Hel(J/kg): 74.1 41.6 47.2 48.1 44.9 22.1 37.9 82.9 91.4 102.6 134.7 119.5 133.4 121.3 153.5 Precip H20 (in): 0.87 0.88 0.76 0.64 0.65 0.65 0.58 0.54 0.62 0.67 0.61 0.58 0.72 0.81 0.83 Lifted Index(C): 2.7 2.8 4.7 6.7 7.4 5.6 5.7 9.3 9.6 10.8 11.7 13.8 12.0 9.2 7.8 700mb VV(-ub/s): 1.5 0.1 -0.4 -0.4 0.0 -0.7 0.1 -1.0 0.6 0.1 -0.7 -1.7 1.5 1.6 1.9 Thk1000-500mb(m)5658.0 5638.3 5637.2 5618.7 5594.7 5568.6 5575.4 5563.3 5544.4 5548.2 5581.5 5591.8 5599.5 5600.6 5592.3 Thk1000-850mb(m)1375.8 1365.4 1368.7 1357.3 1349.1 1347.3 1356.1 1346.9 1342.7 1342.0 1353.2 1349.1 1356.0 1363.5 1367.4 Thk850-700mb(m):1623.0 1618.3 1612.9 1607.0 1597.7 1586.7 1582.1 1580.9 1575.2 1576.9 1584.2 1591.0 1597.9 1596.2 1591.2 SWEAT Index: 89.0 94.0 58.0 29.2 51.1 82.4 54.7 59.0 67.5 52.3 65.7 48.9 52.1 61.1 69.4 Total Totals Idx 44.1 44.9 40.9 32.2 37.3 38.6 35.2 31.9 27.4 27.5 29.8 24.4 9.9 9.9 22.7 Frz Hgt(ft amsl) 13028 12861 12926 12941 12569 11969 11673 11890 11238 10895 11506 11948 11919 12099 11311 0WetBlbHgt(amsl) 10238 9987 9204 8068 8014 6390 5919 5767 5363 6796 6015 6034 8987 10111 10191 Equil Prs (mb): 991 993 991 993 885 837 993 995 996 997 995 995 992 990 989 Equil Hgt(amsl): 26 26 26 26 3805 5358 26 26 26 26 26 26 26 26 26 Hail Size(in): 0.22 0.00 0.18 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: 50.6 22.1 46.0 21.5 18.0 26.0 31.5 47.8 44.2 29.9 50.3 52.5 50.5 48.6 51.7 Showalter Index: 2.8 2.4 5.4 10.6 8.2 8.0 10.1 12.2 14.3 14.5 12.6 15.3 15.2 14.4 13.8 Cap Strength(C):-999.9 9.1 5.2 5.1 3.5 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 Storm Dir (deg): 255 258 293 288 289 298 289 280 274 275 274 263 252 244 253 Storm Spd (kts): 7 7 8 8 11 11 13 14 16 14 14 13 13 16 19 2m HeatIndex(F): 52 56 65 59 56 59 64 56 53 57 63 53 50 62 66 2m WindChill(F): 52 56 65 59 56 59 64 56 53 57 63 53 50 62 66 1000mb GPH (m): 129 141 130 143 143 156 146 160 168 177 162 160 133 121 112 950mb GPH (m): 560 570 566 576 572 587 581 589 595 605 595 590 562 553 548 950mb Temp (C): 13.3 10.2 13.9 11.7 10.3 10.3 13.1 11.1 10.2 9.0 12.6 11.4 11.8 13.2 14.9 950mb Dewpt(C): 11.6 10.1 11.1 10.8 10.0 9.9 9.1 6.3 6.2 7.8 6.3 4.7 5.4 5.1 6.7 950mb RH (%): 89 99 83 94 98 98 76 72 76 92 65 63 64 57 57 950mb Dir: 299 266 296 310 303 289 277 322 206 213 324 358 23 288 275 950mb Speed(kt): 3 2 7 10 10 6 8 4 4 2 7 7 4 2 3 900mb GPH (m): 1018 1023 1019 1025 1020 1035 1032 1038 1043 1051 1045 1038 1013 1007 1002 900mb Temp (C): 16.0 13.6 10.4 8.3 6.8 7.8 8.7 7.4 6.5 6.7 8.5 8.5 11.1 12.2 12.0 900mb Dewpt(C): 9.1 10.0 8.6 7.3 6.8 6.7 8.2 6.4 5.2 2.6 3.9 1.7 -3.0 -0.8 -2.0 900mb RH (%): 63 78 89 93 100 93 97 93 92 75 72 62 37 40 37 900mb Dir: 208 305 315 318 329 322 277 242 219 250 335 327 139 166 199 900mb Speed(kt): 2 4 10 9 9 16 8 5 7 4 6 2 2 2 6 850mb GPH (m): 1505 1506 1498 1500 1492 1503 1502 1507 1511 1519 1515 1509 1489 1484 1479 850mb Temp (C): 17.0 14.9 13.3 11.9 9.2 5.0 5.2 5.4 6.0 5.1 5.6 7.9 11.9 11.9 11.2 850mb Dewpt(C): 5.1 6.1 2.2 -5.6 0.0 2.6 0.4 -2.3 -8.1 -4.2 1.4 -6.4 -28.0 -29.5 -15.9 850mb RH (%): 44 55 46 28 52 84 71 57 35 51 74 35 4 4 13 850mb Dir: 180 296 324 303 321 315 311 263 270 248 255 221 203 206 214 850mb Speed(kt): 3 3 9 8 13 15 10 10 11 7 6 6 8 6 14 800mb GPH (m): 2019 2018 2007 2006 1993 1999 1997 2003 2006 2013 2011 2010 1994 1988 1982 800mb Temp (C): 14.1 13.1 11.9 10.9 8.6 6.8 6.6 6.4 4.7 3.9 7.1 8.7 9.3 8.9 7.8 800mb Dewpt(C): 3.7 3.2 -3.1 -10.2 -3.6 -11.7 -21.3 -19.7 -8.9 -3.4 -26.1 -23.5 -11.3 -6.2 0.5 800mb RH (%): 49 50 34 21 41 25 12 13 36 59 7 8 22 33 59 800mb Dir: 182 221 275 265 276 290 291 277 260 223 230 234 216 214 222 800mb Speed(kt): 6 5 7 7 10 12 14 14 14 15 16 13 13 12 20 750mb GPH (m): 2559 2557 2544 2541 2525 2528 2525 2529 2529 2538 2540 2540 2525 2519 2510 750mb Temp (C): 10.0 9.7 9.1 8.8 7.5 6.2 5.3 4.2 2.8 5.0 5.7 5.3 6.6 5.6 4.9 750mb Dewpt(C): -0.8 -2.5 -6.2 -15.6 -13.0 -37.7 -16.5 -9.2 -5.4 -32.9 -14.8 -8.3 -5.8 -2.1 0.6 750mb RH (%): 47 42 33 16 22 3 19 37 55 5 21 36 40 57 73 750mb Dir: 202 209 237 241 255 276 266 258 247 241 235 226 215 212 222 750mb Speed(kt): 12 11 12 10 14 14 17 18 22 19 20 18 19 20 24 700mb GPH (m): 3128 3125 3111 3107 3089 3090 3084 3088 3086 3096 3099 3100 3087 3080 3070 700mb Temp (C): 5.9 5.4 5.6 5.7 4.6 3.4 2.6 2.0 1.7 1.1 2.2 2.6 3.4 3.0 2.0 700mb Dewpt(C): -6.9 -7.9 -15.5 -18.2 -20.0 -18.7 -15.7 -17.9 -25.1 -10.3 -14.9 -11.5 -6.4 -3.0 -1.6 700mb RH (%): 39 37 20 16 15 18 25 21 12 42 27 34 48 65 77 700mb Dir: 218 209 227 236 245 262 253 247 246 245 236 230 222 210 218 700mb Speed(kt): 13 13 13 13 17 17 21 23 28 23 23 21 22 24 31 650mb GPH (m): 3730 3726 3712 3708 3688 3686 3679 3683 3680 3689 3693 3696 3684 3678 3665 650mb Temp (C): 2.0 1.5 1.7 1.5 1.0 -0.2 -0.7 -0.2 -1.3 -1.8 -1.0 -0.3 -0.3 0.1 -1.2 650mb Dewpt(C): -18.8 -19.2 -21.6 -19.7 -28.9 -18.9 -26.6 -28.2 -21.1 -14.2 -14.8 -14.9 -6.7 -4.9 -6.1 650mb RH (%): 20 20 16 19 9 23 12 10 21 38 34 32 62 69 69 650mb Dir: 229 218 239 234 242 252 245 244 242 243 237 231 225 213 220 650mb Speed(kt): 11 13 13 13 19 19 26 27 31 28 28 23 25 31 37 600mb GPH (m): 4368 4363 4351 4346 4325 4320 4314 4317 4311 4319 4327 4331 4320 4312 4298 600mb Temp (C): -3.3 -3.4 -3.0 -2.6 -3.3 -4.5 -4.1 -4.7 -5.9 -6.1 -4.1 -3.8 -4.2 -5.3 -5.5 600mb Dewpt(C): -23.9 -23.3 -26.4 -16.9 -39.5 -21.9 -31.0 -23.9 -22.8 -11.9 -19.0 -16.9 -7.5 -6.4 -10.5 600mb RH (%): 19 20 15 33 4 25 11 21 25 64 31 35 77 92 68 600mb Dir: 232 226 246 236 243 245 246 244 242 243 239 232 226 211 223 600mb Speed(kt): 13 13 13 13 20 21 27 31 33 32 30 26 27 40 48 550mb GPH (m): 5051 5045 5033 5029 5007 4998 4992 4995 4986 4995 5008 5015 5000 4991 4974 550mb Temp (C): -6.7 -7.6 -7.3 -7.8 -8.1 -9.6 -8.9 -9.5 -10.4 -9.5 -7.7 -6.5 -8.5 -9.5 -10.1 550mb Dewpt(C): -34.9 -32.2 -28.5 -15.9 -41.5 -25.4 -32.1 -31.7 -27.6 -18.4 -30.8 -22.4 -10.6 -10.5 -11.6 550mb RH (%): 9 12 17 52 5 27 14 15 24 49 14 27 85 92 89 550mb Dir: 238 229 256 239 243 241 248 243 242 247 238 230 229 215 226 550mb Speed(kt): 17 14 12 12 22 22 26 36 38 34 32 31 31 46 48 500mb GPH (m): 5787 5779 5767 5762 5737 5725 5722 5723 5712 5725 5743 5752 5733 5721 5704 500mb Temp (C): -11.0 -12.0 -12.7 -13.0 -14.0 -15.5 -14.8 -14.4 -14.7 -13.3 -11.4 -11.4 -13.0 -13.8 -13.7 500mb Dewpt(C): -44.0 -41.0 -27.7 -33.4 -40.6 -21.8 -34.1 -39.6 -30.3 -26.2 -28.0 -20.1 -14.5 -15.1 -14.2 500mb RH (%): 5 7 28 17 9 59 18 10 26 34 24 49 88 90 96 500mb Dir: 236 233 254 242 240 246 250 243 240 255 242 231 221 217 224 500mb Speed(kt): 21 14 13 13 26 22 29 39 45 39 37 38 35 49 42 450mb GPH (m): 6587 6576 6561 6555 6527 6512 6508 6514 6502 6519 6541 6549 6526 6514 6495 450mb Temp (C): -16.5 -17.2 -18.6 -19.0 -20.4 -21.0 -21.0 -19.7 -19.5 -18.1 -17.6 -17.6 -18.8 -19.3 -19.9 450mb Dewpt(C): -41.3 -38.2 -31.5 -60.5 -40.2 -33.0 -44.0 -45.2 -21.0 -38.5 -27.4 -25.2 -20.7 -20.9 -25.5 450mb RH (%): 10 15 32 2 16 34 12 9 88 16 43 52 86 87 62 450mb Dir: 232 234 239 247 235 246 253 245 243 261 243 227 219 217 220 450mb Speed(kt): 22 20 17 15 31 23 33 42 48 47 39 39 39 46 47 400mb GPH (m): 7459 7446 7428 7418 7387 7368 7366 7376 7368 7386 7410 7421 7393 7380 7362 400mb Temp (C): -23.1 -24.3 -25.0 -26.1 -26.8 -28.0 -27.5 -26.6 -24.9 -25.0 -24.4 -23.5 -24.9 -24.8 -23.5 400mb Dewpt(C): -42.2 -35.0 -34.3 -51.9 -29.4 -43.6 -47.4 -44.8 -28.1 -28.3 -32.1 -33.6 -27.4 -27.1 -51.6 400mb RH (%): 17 38 43 8 79 22 14 17 75 75 50 40 80 81 6 400mb Dir: 222 231 229 245 233 237 264 248 256 254 249 228 217 216 219 400mb Speed(kt): 21 26 25 20 32 24 35 46 55 60 43 40 44 48 50 350mb GPH (m): 8421 8404 8382 8368 8336 8312 8311 8325 8326 8342 8367 8379 8349 8337 8321 350mb Temp (C): -30.7 -31.7 -32.5 -33.7 -34.6 -35.2 -35.4 -33.9 -31.4 -32.2 -31.9 -31.3 -32.0 -31.9 -31.0 350mb Dewpt(C): -47.1 -41.4 -36.3 -43.4 -37.7 -56.1 -49.2 -40.4 -40.4 -36.9 -39.8 -51.2 -35.4 -35.0 -44.8 350mb RH (%): 20 39 70 38 74 11 25 53 42 64 47 13 72 74 26 350mb Dir: 217 223 227 236 239 236 272 255 258 252 254 232 219 217 219 350mb Speed(kt): 22 25 28 27 32 25 38 48 67 69 54 40 46 51 62 300mb GPH (m): 9494 9474 9453 9432 9393 9368 9365 9388 9396 9409 9435 9449 9417 9403 9393 300mb Temp (C): -40.0 -40.3 -39.9 -41.7 -42.8 -43.3 -43.8 -41.5 -41.2 -41.8 -41.5 -41.0 -41.3 -41.8 -40.7 300mb Dewpt(C): -47.8 -47.2 -43.2 -48.7 -50.7 -58.0 -54.3 -47.9 -55.9 -48.8 -53.7 -58.5 -45.7 -45.2 -45.2 300mb RH (%): 45 49 71 48 43 20 32 51 21 48 27 15 64 70 63 300mb Dir: 220 220 233 223 240 230 282 278 262 250 254 235 221 220 222 300mb Speed(kt): 22 24 28 33 33 34 44 65 72 73 56 41 45 58 63 250mb GPH (m): 10713 10691 10671 10643 10600 10569 10562 10597 10606 10616 10642 10658 10625 10611 10604 250mb Temp (C): -49.6 -49.8 -50.4 -50.9 -51.4 -52.1 -53.4 -52.1 -52.0 -52.2 -52.4 -51.7 -52.0 -52.0 -51.9 250mb Dewpt(C): -56.5 -55.7 -54.1 -56.5 -58.6 -60.7 -60.4 -56.2 -60.8 -59.7 -65.3 -58.1 -56.8 -56.5 -56.0 250mb RH (%): 46 52 66 53 44 37 44 63 36 42 22 48 58 60 63 250mb Dir: 214 214 216 213 232 229 278 278 264 243 250 227 220 218 230 250mb Speed(kt): 21 25 31 41 29 36 45 81 75 76 55 50 42 67 65 200mb GPH (m): 12144 12116 12091 12063 12020 11990 11973 12001 12008 12019 12046 12064 12032 12020 12014 200mb Temp (C): -56.9 -58.0 -58.8 -59.0 -58.7 -57.8 -58.5 -62.0 -63.0 -63.3 -63.3 -63.7 -62.1 -60.7 -59.3 200mb Dewpt(C): -67.7 -65.5 -63.7 -69.2 -68.1 -67.5 -68.5 -65.1 -66.6 -67.8 -70.4 -67.5 -67.5 -64.5 -66.1 200mb RH (%): 27 40 56 28 31 31 29 68 64 57 40 62 51 63 44 200mb Dir: 190 220 219 225 232 238 262 268 257 241 244 229 220 216 221 200mb Speed(kt): 25 24 41 35 35 38 44 58 64 79 80 60 50 70 68 150mb GPH (m): 13961 13934 13905 13871 13835 13811 13798 13798 13787 13796 13817 13828 13814 13816 13816 150mb Temp (C): -58.3 -56.7 -56.7 -57.9 -56.9 -54.9 -54.5 -56.6 -56.9 -56.4 -58.2 -59.4 -59.4 -58.3 -57.6 150mb Dewpt(C): -81.1 -81.3 -81.4 -80.6 -81.6 -81.9 -84.3 -83.3 -83.2 -83.0 -82.4 -80.9 -82.2 -82.6 -81.9 150mb RH (%): 5 4 4 5 4 3 2 3 3 3 4 6 5 4 4 150mb Dir: 218 221 218 228 237 239 252 241 241 239 242 235 232 226 227 150mb Speed(kt): 24 29 44 40 33 37 50 50 48 51 55 52 48 55 56 100mb GPH (m): 16501 16487 16467 16444 16409 16387 16391 16382 16369 16375 16385 16399 16380 16397 16402 100mb Temp (C): -58.9 -58.8 -57.4 -56.3 -55.4 -54.3 -54.5 -54.1 -54.4 -54.4 -55.7 -54.6 -55.2 -54.2 -53.3 100mb Dewpt(C): -87.6 -87.5 -91.0 -90.0 -89.4 -84.2 -84.3 -84.0 -88.7 -88.7 -89.6 -84.4 -89.2 -88.6 -87.9 100mb RH (%): 2 2 1 1 1 2 2 2 1 1 1 2 1 1 1 100mb Dir: 230 230 234 229 222 246 236 237 240 228 234 237 236 227 233 100mb Speed(kt): 25 31 32 30 41 40 38 40 40 39 46 41 41 41 42