Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z SEP 4, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 986.7 988.7 989.2 991.5 991.7 992.7 991.5 992.6 991.7 991.8 991.1 993.2 994.8 996.6 995.0 Mean SLP (mb): 1011.0 1012.8 1013.1 1015.7 1016.0 1016.7 1015.3 1016.8 1016.2 1016.0 1014.9 1017.4 1019.4 1021.1 1019.1 2m agl Tmp (F): 54.0 56.3 61.5 55.6 53.1 64.2 68.7 59.9 52.1 64.2 69.0 57.1 51.2 55.0 64.7 2m agl Dewpt(F): 48.5 52.9 50.9 50.0 50.5 51.2 50.0 50.0 47.7 51.9 49.8 50.3 48.6 50.5 50.4 2m agl RH (%): 81 88 67 81 91 62 50 69 84 63 49 77 90 84 59 10m agl Dir: 76 103 104 88 84 338 254 46 61 40 299 290 257 211 337 10m agl Spd(kt): 3 3 5 1 2 2 1 2 3 2 6 4 1 2 3 6hr Precip (in): 0.00 0.11 0.07 0.01 0.02 0.00 0.02 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 AccumPrecip(in): 0.00 0.11 0.18 0.19 0.22 0.22 0.23 0.24 0.24 0.24 0.24 0.24 0.24 0.25 0.25 Sfc CAPE (J/kg): 5.5 221.0 145.1 17.4 3.8 243.6 446.8 52.7 3.9 138.4 159.8 1.7 1.2 16.4 5.9 Sfc CINH (J/kg): -25.2 -13.2 -7.3 -21.7 -0.8 0.0 0.0 -51.3 -1.9 -22.5 -4.4 -2.4 0.0 0.0 0.0 0-3km Hel(J/kg): 39.1 28.2 9.2 42.1 -18.9 34.2 16.4 30.0 33.0 14.1 12.1 0.0 35.3 48.5 11.0 Precip H20 (in): 0.88 0.84 0.82 0.80 0.82 0.78 0.81 0.75 0.69 0.68 0.73 0.84 0.78 0.77 0.74 Lifted Index(C): -0.2 0.0 -0.3 0.8 1.7 -0.8 -1.7 -0.3 0.7 0.1 0.1 1.8 5.9 5.8 4.9 700mb VV(-ub/s): 5.1 -0.8 -0.7 -0.4 0.4 -1.1 -0.8 -1.0 -0.7 -0.5 -0.5 -0.6 -1.6 -1.5 -1.1 Thk1000-500mb(m)5469.9 5470.8 5484.3 5488.3 5486.2 5485.5 5505.2 5505.0 5500.5 5504.6 5520.3 5505.0 5495.3 5517.0 5560.7 Thk1000-850mb(m)1350.0 1350.4 1354.7 1353.7 1351.0 1355.5 1368.2 1361.0 1356.8 1359.7 1369.1 1355.6 1343.3 1341.0 1357.8 Thk850-700mb(m):1555.2 1556.6 1559.6 1560.0 1561.2 1561.8 1564.3 1565.9 1565.0 1564.4 1565.0 1562.8 1558.9 1566.2 1578.3 SWEAT Index: 160.4 175.0 97.9 73.3 88.3 111.6 184.8 90.0 68.1 25.2 122.6 71.9 47.8 67.2 68.3 Total Totals Idx 52.9 53.5 51.1 50.3 50.5 52.0 54.9 51.0 50.3 48.6 50.8 48.4 43.4 42.1 42.7 Frz Hgt(ft amsl) 7186 7421 7727 7758 7980 8230 8217 8535 8588 8392 8481 8203 7731 9226 10670 0WetBlbHgt(amsl) 7119 7316 7169 7280 7227 7199 7374 7333 6682 6651 6842 7976 6860 7468 8253 Equil Prs (mb): 987 345 341 992 992 340 333 993 992 338 337 993 995 888 995 Equil Hgt(amsl): 26 26832 27201 26 26 27332 27879 26 26 27547 27697 26 26 3794 26 Hail Size(in): 0.08 0.00 0.00 0.00 0.00 0.01 0.10 0.00 0.00 0.00 0.00 0.03 0.00 0.00 0.00 Conv Wind Gust: 30.6 29.9 36.6 29.5 29.2 38.3 42.5 34.3 35.5 39.1 42.8 28.3 27.9 15.3 33.7 Showalter Index: 0.6 0.1 1.8 2.1 1.9 1.1 -1.2 1.4 1.9 2.9 0.9 2.6 5.9 6.1 5.3 Cap Strength(C):-999.9 1.2 -1.4 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 0.0 -999.9 -999.9 -999.9 0.0 -999.9 Storm Dir (deg): 201 188 160 169 141 164 241 228 218 159 354 341 342 1 345 Storm Spd (kts): 7 8 6 6 4 5 3 4 4 2 5 7 7 5 4 2m HeatIndex(F): 54 56 61 56 53 64 69 60 52 64 69 57 51 55 65 2m WindChill(F): 54 56 61 56 53 64 69 60 52 64 69 57 51 55 65 1000mb GPH (m): 92 108 111 132 133 141 130 141 134 134 127 146 160 175 161 950mb GPH (m): 522 539 544 564 564 576 569 575 566 568 566 578 587 602 596 950mb Temp (C): 12.4 11.9 12.2 12.6 11.8 12.7 16.0 14.0 13.6 13.3 16.1 12.7 9.3 8.8 13.2 950mb Dewpt(C): 8.7 7.9 8.7 7.0 8.0 9.0 8.3 8.7 8.3 7.3 8.2 9.0 7.8 8.6 8.5 950mb RH (%): 78 76 79 68 77 78 60 70 70 67 59 78 90 99 73 950mb Dir: 80 119 104 13 95 343 252 31 49 63 302 314 295 256 343 950mb Speed(kt): 4 7 7 1 5 2 1 4 4 3 8 9 8 3 4 900mb GPH (m): 973 989 995 1015 1014 1026 1025 1029 1018 1021 1022 1030 1034 1048 1048 900mb Temp (C): 8.2 8.2 9.1 9.1 8.9 9.0 11.3 10.5 10.0 10.4 11.6 9.6 7.9 6.7 9.1 900mb Dewpt(C): 7.3 6.4 4.8 4.3 5.3 6.2 7.2 6.8 6.5 5.2 7.3 7.4 4.9 6.3 6.4 900mb RH (%): 94 88 74 71 78 82 75 78 78 69 74 86 81 97 83 900mb Dir: 142 165 94 291 92 45 205 73 13 63 306 311 288 273 355 900mb Speed(kt): 6 9 9 1 5 3 2 2 3 5 8 6 11 6 6 850mb GPH (m): 1442 1458 1466 1485 1484 1497 1498 1502 1491 1493 1496 1502 1504 1516 1519 850mb Temp (C): 4.5 4.7 5.8 5.6 5.6 5.6 6.9 6.7 6.7 6.8 6.9 6.2 5.3 4.9 6.9 850mb Dewpt(C): 4.4 4.6 2.0 2.6 3.2 3.1 5.3 3.2 2.5 1.3 5.2 4.0 1.1 3.3 3.8 850mb RH (%): 99 99 77 81 84 84 89 78 74 68 89 86 74 89 81 850mb Dir: 165 162 102 160 98 86 157 175 124 70 309 290 280 289 334 850mb Speed(kt): 10 10 10 2 5 3 2 3 1 4 7 8 13 8 8 800mb GPH (m): 1933 1951 1959 1979 1977 1990 1993 1997 1985 1988 1991 1995 1996 2009 2016 800mb Temp (C): 1.4 2.1 2.2 2.3 2.4 2.8 3.4 3.6 3.3 3.4 3.4 2.8 2.1 2.8 5.7 800mb Dewpt(C): 1.2 1.8 -0.1 0.4 0.3 -0.8 -0.3 -0.4 -3.2 -3.4 -2.7 1.0 -1.6 0.1 -0.4 800mb RH (%): 99 98 85 87 85 77 76 75 62 61 64 87 76 83 65 800mb Dir: 174 163 113 146 114 151 181 220 180 142 264 303 290 329 349 800mb Speed(kt): 12 12 8 5 4 4 6 7 4 4 2 11 14 8 7 750mb GPH (m): 2450 2468 2477 2497 2497 2510 2514 2517 2506 2508 2512 2515 2514 2530 2542 750mb Temp (C): -1.4 -1.4 -0.7 -0.8 -0.3 0.0 -0.1 0.5 0.7 0.3 0.4 -0.1 -0.9 1.2 3.3 750mb Dewpt(C): -1.7 -1.9 -2.0 -2.4 -3.6 -3.5 -3.2 -5.0 -7.7 -6.9 -6.1 -0.6 -1.3 -4.3 -4.0 750mb RH (%): 98 96 91 89 79 77 79 67 53 58 61 96 97 66 59 750mb Dir: 176 164 132 146 153 163 204 217 184 166 279 311 303 354 358 750mb Speed(kt): 13 12 7 9 4 7 8 6 5 5 3 12 14 7 4 700mb GPH (m): 2997 3015 3025 3045 3046 3059 3063 3068 3056 3058 3061 3064 3062 3082 3097 700mb Temp (C): -4.8 -4.5 -3.8 -3.6 -3.4 -3.7 -3.6 -2.7 -2.9 -3.0 -2.9 -3.3 -3.0 -1.2 0.6 700mb Dewpt(C): -5.0 -6.1 -5.1 -6.4 -6.4 -6.7 -6.3 -13.2 -12.7 -11.6 -12.1 -6.1 -6.7 -11.7 -12.8 700mb RH (%): 98 89 91 81 79 79 82 44 47 51 49 81 76 45 36 700mb Dir: 167 181 131 151 156 164 217 220 189 166 311 316 322 359 310 700mb Speed(kt): 14 13 7 13 4 10 7 6 7 4 4 12 11 7 4 650mb GPH (m): 3576 3594 3607 3628 3628 3640 3644 3651 3639 3641 3645 3648 3647 3670 3689 650mb Temp (C): -8.4 -8.1 -7.4 -6.9 -7.0 -7.6 -7.3 -6.3 -6.3 -6.0 -6.0 -6.0 -5.5 -3.6 -1.7 650mb Dewpt(C): -9.0 -11.7 -9.7 -11.4 -11.0 -12.7 -12.9 -15.2 -17.4 -17.5 -17.8 -14.8 -12.7 -20.5 -21.2 650mb RH (%): 95 75 84 70 73 67 64 49 41 40 39 50 57 26 21 650mb Dir: 167 185 131 150 154 151 232 216 194 201 323 318 334 345 284 650mb Speed(kt): 14 13 6 14 5 10 6 6 7 1 6 10 10 8 6 600mb GPH (m): 4193 4211 4225 4247 4247 4257 4263 4271 4259 4262 4266 4270 4271 4298 4321 600mb Temp (C): -11.9 -12.1 -11.5 -11.0 -11.1 -11.8 -10.9 -10.6 -10.5 -10.1 -9.6 -9.6 -9.1 -7.2 -5.4 600mb Dewpt(C): -14.3 -18.0 -15.1 -17.6 -17.1 -20.1 -20.5 -21.6 -24.0 -23.7 -28.3 -19.8 -19.7 -20.1 -23.0 600mb RH (%): 82 62 75 59 61 50 46 40 33 33 21 44 42 35 24 600mb Dir: 176 169 148 145 146 136 237 201 202 245 333 315 339 347 277 600mb Speed(kt): 11 11 7 13 6 9 5 6 7 2 6 10 9 9 7 550mb GPH (m): 4853 4871 4886 4909 4909 4918 4925 4934 4923 4926 4932 4936 4938 4970 4997 550mb Temp (C): -16.5 -16.7 -16.1 -15.6 -15.8 -16.0 -15.6 -15.2 -15.2 -14.8 -13.9 -14.0 -13.5 -11.6 -10.3 550mb Dewpt(C): -20.4 -22.4 -21.0 -23.3 -21.8 -28.8 -30.4 -30.2 -30.0 -27.6 -30.6 -22.8 -26.6 -20.4 -26.9 550mb RH (%): 73 62 67 52 60 33 28 27 28 33 24 48 33 49 25 550mb Dir: 190 138 166 130 114 127 233 190 204 224 2 314 349 344 274 550mb Speed(kt): 10 10 9 12 8 8 2 6 9 2 8 9 9 10 7 500mb GPH (m): 5561 5579 5595 5620 5620 5627 5636 5646 5634 5638 5647 5651 5656 5692 5722 500mb Temp (C): -22.0 -22.1 -21.7 -21.1 -20.9 -21.7 -21.3 -20.6 -20.5 -20.3 -19.3 -19.1 -18.5 -17.0 -16.0 500mb Dewpt(C): -27.0 -26.7 -27.4 -28.8 -25.0 -33.3 -32.6 -32.6 -32.4 -34.7 -34.7 -31.8 -31.5 -29.7 -36.6 500mb RH (%): 64 67 60 51 70 35 37 34 35 27 25 32 32 33 16 500mb Dir: 204 123 169 117 83 111 128 174 200 182 13 321 2 340 272 500mb Speed(kt): 10 10 13 12 11 8 1 5 10 2 12 7 9 12 6 450mb GPH (m): 6327 6344 6362 6388 6388 6393 6404 6415 6403 6407 6421 6425 6432 6473 6506 450mb Temp (C): -28.1 -28.2 -27.7 -27.6 -27.2 -27.9 -27.1 -26.8 -27.0 -27.5 -25.8 -25.1 -24.6 -23.3 -21.8 450mb Dewpt(C): -34.4 -32.3 -33.0 -32.5 -31.0 -40.0 -32.8 -34.2 -37.2 -33.0 -30.8 -34.5 -31.2 -37.7 -45.6 450mb RH (%): 56 69 61 63 71 32 59 50 39 60 63 42 55 26 10 450mb Dir: 218 118 156 119 68 85 155 129 204 175 13 333 19 337 282 450mb Speed(kt): 10 9 14 15 15 10 5 6 10 7 9 4 10 9 10 400mb GPH (m): 7159 7176 7196 7223 7223 7227 7240 7251 7238 7245 7263 7268 7276 7321 7364 400mb Temp (C): -35.6 -35.3 -34.6 -34.4 -34.9 -34.3 -34.2 -34.3 -34.9 -32.9 -32.0 -32.0 -31.9 -30.4 -25.4 400mb Dewpt(C): -41.5 -41.6 -39.0 -38.3 -38.8 -43.0 -37.6 -39.7 -39.7 -36.5 -35.2 -39.5 -38.9 -44.3 -54.0 400mb RH (%): 56 54 65 69 68 43 72 59 63 71 74 49 51 26 6 400mb Dir: 234 133 137 127 75 65 139 103 209 166 84 5 18 346 298 400mb Speed(kt): 13 7 16 21 15 16 11 16 11 26 6 3 11 9 31 350mb GPH (m): 8069 8089 8111 8138 8138 8144 8157 8167 8153 8167 8188 8195 8204 8255 8326 350mb Temp (C): -44.3 -43.3 -43.5 -42.9 -42.1 -42.2 -42.7 -42.0 -42.4 -41.3 -40.4 -39.6 -38.5 -37.1 -29.2 350mb Dewpt(C): -49.7 -49.0 -47.4 -47.3 -48.2 -47.5 -46.6 -50.4 -48.4 -45.4 -44.5 -49.5 -52.4 -54.2 -49.9 350mb RH (%): 56 55 66 64 53 57 66 41 53 66 66 36 24 17 13 350mb Dir: 243 235 126 135 96 53 125 120 202 149 130 55 343 324 298 350mb Speed(kt): 14 3 20 33 14 20 20 10 10 37 13 9 17 18 54 300mb GPH (m): 9099 9125 9149 9177 9179 9185 9198 9210 9193 9202 9225 9243 9258 9313 9405 300mb Temp (C): -43.2 -41.4 -41.2 -41.7 -42.4 -41.5 -41.3 -41.1 -42.2 -44.0 -43.8 -40.1 -39.9 -40.0 -38.9 300mb Dewpt(C): -60.2 -63.1 -63.4 -62.9 -61.9 -65.0 -67.4 -66.1 -63.5 -59.5 -58.5 -67.0 -67.0 -62.1 -55.7 300mb RH (%): 15 9 8 9 11 7 5 6 9 18 20 5 5 9 17 300mb Dir: 305 195 175 134 65 66 161 204 197 175 347 328 327 316 289 300mb Speed(kt): 6 7 12 12 8 8 8 12 16 18 11 27 34 49 54 250mb GPH (m): 10339 10367 10392 10412 10410 10422 10436 10446 10425 10430 10454 10483 10496 10542 10628 250mb Temp (C): -40.0 -40.5 -39.7 -41.5 -41.5 -40.8 -40.6 -41.6 -41.8 -42.1 -41.9 -41.7 -42.5 -45.6 -49.0 250mb Dewpt(C): -73.3 -73.6 -73.7 -71.6 -69.8 -69.7 -68.4 -70.0 -69.9 -70.3 -69.6 -71.5 -70.6 -65.1 -58.9 250mb RH (%): 2 2 2 3 4 4 4 4 4 4 4 3 4 11 33 250mb Dir: 223 214 199 138 86 92 231 218 213 347 347 327 317 311 284 250mb Speed(kt): 8 14 13 5 8 5 7 10 8 4 24 37 39 53 52 200mb GPH (m): 11859 11882 11910 11926 11925 11938 11953 11959 11938 11943 11965 11989 11997 12018 12065 200mb Temp (C): -41.0 -41.7 -41.7 -42.1 -42.1 -42.3 -42.0 -42.7 -42.3 -42.2 -42.7 -44.2 -44.1 -47.4 -54.2 200mb Dewpt(C): -79.2 -79.8 -79.7 -80.0 -80.0 -80.0 -79.6 -79.6 -80.2 -80.1 -79.7 -73.8 -76.6 -73.2 -67.1 200mb RH (%): 1 1 1 1 1 1 1 1 1 1 1 3 2 5 21 200mb Dir: 252 220 196 197 192 149 240 258 289 344 323 315 296 290 277 200mb Speed(kt): 11 19 18 8 11 4 7 4 4 10 21 31 28 32 39 150mb GPH (m): 13788 13810 13838 13853 13846 13862 13878 13879 13860 13864 13882 13898 13898 13909 13927 150mb Temp (C): -46.6 -46.6 -46.5 -46.3 -47.2 -46.8 -46.7 -46.9 -46.9 -46.8 -47.5 -48.9 -51.1 -50.7 -51.9 150mb Dewpt(C): -83.8 -82.8 -83.3 -83.0 -83.6 -72.0 -71.9 -72.1 -101.0 -83.1 -83.8 -84.4 -86.4 -85.3 -86.4 150mb RH (%): 1 1 1 1 1 5 5 5 0 1 1 1 1 1 1 150mb Dir: 228 226 221 197 210 184 188 246 308 301 296 295 290 270 261 150mb Speed(kt): 14 12 20 17 7 11 9 5 3 10 15 28 25 18 23 100mb GPH (m): 16449 16475 16499 16515 16495 16516 16532 16533 16514 16517 16525 16531 16512 16516 16532 100mb Temp (C): -51.0 -50.2 -51.1 -50.9 -51.8 -51.7 -52.2 -51.7 -51.5 -52.0 -52.6 -53.4 -53.9 -54.3 -54.2 100mb Dewpt(C): -87.0 -106.5 -86.2 -86.1 -86.9 -86.8 -87.2 -86.8 -86.6 -87.0 -87.4 -88.0 -88.3 -88.6 -84.1 100mb RH (%): 1 0 1 1 1 1 1 1 1 1 1 1 1 1 2 100mb Dir: 240 170 208 198 181 183 190 200 221 194 249 258 268 243 251 100mb Speed(kt): 9 7 11 12 11 13 15 15 8 7 12 12 18 11 16