Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z SEP 18, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 996.9 998.6 996.2 996.4 996.1 996.0 993.3 993.0 993.1 993.5 991.0 991.7 993.1 996.0 995.2 Mean SLP (mb): 1021.3 1022.9 1020.1 1020.6 1020.6 1020.3 1017.0 1017.1 1017.5 1017.9 1014.7 1015.8 1017.6 1020.5 1019.3 2m agl Tmp (F): 55.8 61.6 68.7 58.4 53.0 60.4 70.5 59.8 52.4 58.1 70.8 58.5 50.6 52.8 63.2 2m agl Dewpt(F): 51.9 53.4 53.8 53.0 51.6 52.9 53.4 53.1 52.0 54.1 56.7 52.6 50.3 51.2 51.7 2m agl RH (%): 86 74 58 82 95 76 54 78 99 86 60 80 99 94 65 10m agl Dir: 135 186 282 356 71 341 314 19 61 291 307 287 122 271 308 10m agl Spd(kt): 2 3 5 2 3 2 5 2 2 4 6 2 1 3 6 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): 0.0 4.9 0.3 0.3 0.1 1.3 0.0 0.0 0.0 0.9 6.7 0.0 0.0 11.3 1.3 Sfc CINH (J/kg): 0.0 0.0 0.0 0.0 -0.2 0.0 0.0 0.0 0.0 0.0 -2.9 0.0 0.0 0.0 0.0 0-3km Hel(J/kg): 104.5 74.7 31.8 15.3 19.9 14.3 10.3 37.8 47.5 52.9 90.8 102.9 68.1 47.9 38.6 Precip H20 (in): 0.70 0.62 0.65 0.61 0.57 0.53 0.50 0.47 0.47 0.54 0.65 0.72 0.66 0.54 0.74 Lifted Index(C): 4.0 8.6 6.2 7.9 9.2 9.4 5.8 5.6 6.5 7.0 3.1 4.3 5.9 9.6 5.7 700mb VV(-ub/s): 0.8 -0.4 -1.0 -0.4 -0.3 -0.3 -0.2 -0.8 0.3 0.2 0.2 1.3 1.7 0.1 -0.8 Thk1000-500mb(m)5616.1 5611.2 5639.2 5647.7 5639.3 5643.1 5667.7 5669.3 5660.8 5659.5 5678.7 5664.8 5635.3 5612.1 5621.1 Thk1000-850mb(m)1360.7 1357.9 1371.1 1367.1 1363.7 1365.4 1383.6 1383.2 1378.1 1378.7 1393.0 1383.3 1366.3 1354.0 1361.0 Thk850-700mb(m):1600.3 1601.6 1607.5 1611.2 1610.9 1611.9 1615.4 1619.5 1618.2 1618.4 1622.5 1621.6 1614.8 1606.0 1602.9 SWEAT Index: 118.3 38.0 36.3 23.1 21.9 14.4 19.9 19.1 17.1 18.8 17.6 61.5 44.1 36.7 98.0 Total Totals Idx 43.1 32.7 29.2 28.9 29.9 30.0 29.4 30.0 30.9 39.8 39.5 43.1 39.5 32.3 41.3 Frz Hgt(ft amsl) 12992 12711 13096 13715 13521 13649 13783 13674 13688 13579 13532 13271 12927 12849 13146 0WetBlbHgt(amsl) 7773 7832 8553 8391 8251 8372 8726 8851 8814 8764 8946 9141 8981 7628 8439 Equil Prs (mb): 997 999 996 996 996 996 993 993 993 994 991 992 993 996 995 Equil Hgt(amsl): 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 Hail Size(in): 0.00 0.04 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.17 0.15 0.00 0.00 0.00 Conv Wind Gust: 48.7 46.3 48.7 47.6 48.9 49.0 52.0 52.3 52.5 53.1 53.5 52.6 48.5 49.6 48.2 Showalter Index: 3.6 10.5 12.1 11.8 11.3 11.1 11.1 10.4 10.1 5.7 5.8 3.7 6.0 10.4 5.1 Cap Strength(C):-999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 8.2 -999.9 Storm Dir (deg): 13 22 12 17 344 316 310 274 260 236 245 243 270 297 320 Storm Spd (kts): 9 8 8 5 4 3 4 4 5 5 7 8 9 9 9 2m HeatIndex(F): 56 62 69 58 53 60 71 60 52 58 71 58 51 53 63 2m WindChill(F): 56 62 69 58 53 60 71 60 52 58 71 58 51 53 63 1000mb GPH (m): 177 192 171 173 171 170 146 144 146 149 126 133 146 170 163 950mb GPH (m): 608 623 610 606 602 601 586 580 578 580 567 567 574 596 597 950mb Temp (C): 11.5 10.8 15.4 13.5 11.3 10.7 16.7 16.3 14.9 14.8 17.1 15.3 11.5 8.0 12.7 950mb Dewpt(C): 8.0 10.2 10.6 10.4 10.6 9.0 10.4 11.4 10.4 9.0 12.3 11.7 10.1 7.6 9.8 950mb RH (%): 79 97 73 81 95 90 66 72 74 67 72 79 91 97 82 950mb Dir: 204 182 282 346 279 332 321 1 354 26 317 332 314 314 312 950mb Speed(kt): 3 3 5 4 3 2 5 3 3 3 7 5 5 3 9 900mb GPH (m): 1060 1073 1065 1060 1054 1054 1045 1041 1038 1041 1030 1028 1029 1046 1048 900mb Temp (C): 11.6 10.6 11.2 11.9 13.3 14.7 16.4 18.0 17.8 18.2 19.4 18.0 14.8 11.5 9.4 900mb Dewpt(C): 7.3 6.6 7.5 5.1 0.4 -3.7 -4.6 -6.3 -7.0 -2.3 3.9 6.0 1.3 3.4 6.1 900mb RH (%): 74 76 78 62 41 27 23 18 17 24 35 45 39 57 79 900mb Dir: 261 232 280 251 280 232 13 344 14 77 58 47 311 337 324 900mb Speed(kt): 5 4 4 3 3 2 2 1 2 4 5 1 7 18 14 850mb GPH (m): 1538 1550 1542 1540 1535 1536 1529 1527 1524 1528 1519 1516 1512 1524 1524 850mb Temp (C): 10.8 10.8 11.9 13.5 13.6 14.1 15.1 16.2 16.0 16.1 17.3 16.8 14.4 12.2 10.7 850mb Dewpt(C): 6.7 -2.7 -5.8 -6.0 -6.8 -7.5 -8.1 -9.6 -9.0 -0.1 -1.0 3.2 1.0 -6.3 4.6 850mb RH (%): 75 38 28 25 23 21 19 16 17 32 28 39 39 27 65 850mb Dir: 280 302 325 320 306 268 333 184 174 124 130 152 288 320 329 850mb Speed(kt): 7 7 6 5 5 2 1 3 2 4 3 3 6 11 13 800mb GPH (m): 2041 2053 2048 2048 2043 2044 2039 2039 2035 2039 2032 2030 2022 2029 2028 800mb Temp (C): 8.8 9.6 11.1 12.1 11.9 12.1 12.7 13.4 13.3 13.2 14.0 14.0 12.4 10.9 9.7 800mb Dewpt(C): -4.9 -12.9 -8.1 -10.0 -11.7 -12.3 -12.3 -12.8 -15.6 -12.7 -3.8 -2.4 -0.2 -14.9 -2.1 800mb RH (%): 37 19 25 20 18 17 16 15 12 15 28 31 41 15 43 800mb Dir: 305 346 349 354 308 269 286 195 204 166 189 190 237 282 304 800mb Speed(kt): 12 8 7 4 3 2 2 5 5 6 7 9 9 9 11 750mb GPH (m): 2574 2587 2584 2584 2579 2580 2577 2577 2573 2578 2572 2569 2560 2564 2562 750mb Temp (C): 7.9 8.1 8.7 9.3 9.0 9.2 9.7 10.3 10.1 10.1 10.6 9.9 9.4 8.4 8.0 750mb Dewpt(C): -23.0 -14.3 -13.3 -16.4 -15.9 -15.2 -14.7 -15.8 -14.9 -15.3 -14.7 -10.5 -11.9 -18.2 -11.3 750mb RH (%): 9 19 19 14 15 16 16 14 15 15 15 22 21 13 24 750mb Dir: 341 0 352 360 305 261 255 205 214 189 197 203 219 243 284 750mb Speed(kt): 12 9 8 5 2 2 2 6 7 7 11 14 14 12 11 700mb GPH (m): 3139 3151 3150 3151 3146 3148 3145 3147 3142 3146 3141 3138 3127 3130 3127 700mb Temp (C): 5.2 4.7 5.4 5.7 5.8 6.1 6.6 7.1 6.9 7.0 6.9 6.7 5.8 5.1 5.4 700mb Dewpt(C): -19.9 -17.8 -19.5 -18.9 -19.4 -18.2 -17.7 -18.7 -19.0 -18.8 -19.0 -18.7 -12.9 -24.6 -13.7 700mb RH (%): 14 18 15 15 14 15 16 14 14 14 14 14 25 10 24 700mb Dir: 359 0 350 1 314 285 265 219 214 209 204 209 226 237 266 700mb Speed(kt): 11 11 9 6 3 3 4 6 9 9 11 16 17 15 12 650mb GPH (m): 3739 3751 3750 3753 3747 3750 3749 3751 3746 3750 3745 3741 3728 3730 3729 650mb Temp (C): 1.5 0.8 1.4 2.4 2.4 2.9 3.2 3.2 3.1 3.0 3.0 2.6 1.7 1.1 1.9 650mb Dewpt(C): -19.6 -21.1 -21.6 -21.6 -20.7 -18.4 -18.5 -19.1 -20.0 -20.1 -19.4 -19.7 -17.9 -25.9 -13.2 650mb RH (%): 19 18 16 15 16 19 19 18 17 17 17 18 22 11 32 650mb Dir: 358 359 345 353 334 295 272 249 225 208 214 213 228 240 265 650mb Speed(kt): 14 13 11 10 6 6 7 7 8 11 12 16 19 16 14 600mb GPH (m): 4377 4388 4389 4394 4388 4392 4391 4392 4387 4391 4386 4380 4366 4367 4368 600mb Temp (C): -2.8 -3.3 -2.3 -1.2 -1.7 -1.6 -1.3 -1.7 -1.5 -1.9 -2.1 -2.9 -3.4 -2.7 -2.5 600mb Dewpt(C): -23.0 -24.9 -25.6 -22.5 -20.4 -21.4 -22.9 -23.1 -25.0 -24.6 -22.3 -19.5 -20.8 -30.5 -19.9 600mb RH (%): 20 17 15 18 23 21 18 18 15 16 20 27 25 10 25 600mb Dir: 357 358 347 349 335 296 265 253 250 215 211 215 230 249 268 600mb Speed(kt): 18 15 16 14 9 6 8 10 9 9 13 17 20 15 15 550mb GPH (m): 5060 5069 5074 5081 5074 5078 5077 5078 5072 5075 5070 5063 5047 5049 5052 550mb Temp (C): -7.4 -7.5 -6.6 -5.5 -6.5 -6.6 -6.4 -6.7 -7.1 -7.5 -7.4 -7.7 -7.8 -7.9 -7.2 550mb Dewpt(C): -25.9 -29.0 -24.9 -22.8 -24.7 -23.9 -31.2 -30.9 -30.2 -28.0 -28.2 -28.4 -34.1 -25.5 -35.3 550mb RH (%): 22 17 22 25 22 24 12 13 14 18 18 18 11 23 9 550mb Dir: 354 360 353 348 316 292 270 251 241 225 213 215 239 256 278 550mb Speed(kt): 21 20 21 14 10 7 11 10 11 9 12 17 18 14 16 500mb GPH (m): 5794 5803 5810 5821 5810 5813 5813 5813 5806 5809 5805 5798 5781 5782 5784 500mb Temp (C): -12.8 -12.3 -11.5 -10.7 -11.6 -11.7 -11.2 -11.7 -12.0 -11.9 -11.6 -11.5 -12.0 -13.2 -13.1 500mb Dewpt(C): -30.4 -34.1 -27.6 -27.7 -31.9 -29.9 -37.9 -36.8 -37.1 -39.2 -41.3 -40.5 -39.7 -27.9 -47.2 500mb RH (%): 22 15 26 24 17 21 9 11 11 9 7 8 9 28 4 500mb Dir: 355 357 356 347 300 272 272 259 232 229 222 220 241 254 280 500mb Speed(kt): 23 25 24 13 11 10 17 13 12 11 12 16 20 15 17 450mb GPH (m): 6589 6600 6608 6620 6608 6612 6612 6611 6604 6608 6604 6597 6579 6576 6577 450mb Temp (C): -17.6 -17.0 -17.3 -17.0 -17.1 -16.8 -17.1 -17.2 -17.1 -16.8 -16.3 -16.5 -17.1 -18.5 -19.3 450mb Dewpt(C): -40.3 -38.5 -29.8 -34.2 -35.4 -40.6 -42.0 -42.7 -44.2 -41.0 -43.5 -38.3 -38.9 -29.4 -54.7 450mb RH (%): 13 14 34 22 20 11 10 10 8 11 8 14 14 38 3 450mb Dir: 4 350 354 339 293 269 257 256 248 239 227 227 236 250 275 450mb Speed(kt): 31 26 25 14 12 14 20 19 14 14 16 19 23 17 19 400mb GPH (m): 7459 7472 7479 7492 7480 7484 7483 7481 7475 7480 7479 7471 7450 7443 7440 400mb Temp (C): -24.5 -23.7 -23.6 -23.3 -23.4 -23.6 -23.9 -23.9 -23.9 -23.3 -22.4 -22.8 -23.4 -24.9 -25.7 400mb Dewpt(C): -42.0 -42.0 -39.6 -42.3 -41.9 -44.6 -46.1 -44.6 -39.1 -43.6 -41.9 -41.0 -43.4 -30.0 -47.3 400mb RH (%): 19 18 23 17 18 14 12 14 24 15 16 18 15 63 12 400mb Dir: 5 345 347 329 292 276 252 255 257 250 235 227 233 247 266 400mb Speed(kt): 38 28 25 16 16 19 22 22 19 18 19 20 25 21 20 350mb GPH (m): 8415 8432 8438 8454 8441 8443 8442 8440 8436 8443 8443 8436 8412 8401 8392 350mb Temp (C): -31.7 -31.3 -31.0 -30.8 -31.0 -31.2 -31.3 -31.3 -30.3 -29.7 -29.8 -29.8 -29.9 -30.7 -33.3 350mb Dewpt(C): -45.3 -46.1 -46.2 -49.4 -46.4 -48.5 -45.3 -49.3 -50.0 -47.8 -43.7 -42.3 -48.5 -33.3 -52.7 350mb RH (%): 26 23 22 16 22 18 25 16 14 17 26 30 16 78 14 350mb Dir: 6 346 341 319 288 268 254 259 266 254 244 228 230 249 253 350mb Speed(kt): 43 32 29 20 19 22 27 25 18 21 18 20 25 25 26 300mb GPH (m): 9485 9503 9511 9528 9515 9516 9514 9515 9515 9521 9522 9514 9489 9476 9458 300mb Temp (C): -39.9 -40.5 -39.9 -39.8 -39.6 -39.9 -39.8 -39.2 -38.3 -38.2 -38.8 -39.1 -39.5 -39.5 -41.1 300mb Dewpt(C): -52.7 -51.4 -54.5 -53.9 -48.2 -49.5 -45.1 -55.8 -50.1 -50.5 -50.5 -49.5 -49.9 -42.8 -46.4 300mb RH (%): 26 32 21 23 41 37 58 17 29 28 30 34 34 72 58 300mb Dir: 4 343 336 314 285 256 256 274 279 240 239 230 233 231 238 300mb Speed(kt): 46 33 34 25 23 23 31 19 9 9 16 22 24 26 35 250mb GPH (m): 10706 10720 10731 10746 10735 10733 10732 10739 10745 10753 10751 10737 10712 10695 10668 250mb Temp (C): -47.3 -48.9 -48.6 -49.9 -50.1 -50.3 -50.0 -47.7 -46.7 -46.4 -46.5 -47.5 -48.1 -49.3 -50.6 250mb Dewpt(C): -62.3 -59.5 -60.2 -55.9 -53.8 -54.2 -53.8 -57.1 -58.7 -57.9 -59.2 -62.1 -53.8 -53.7 -60.2 250mb RH (%): 18 30 27 51 66 65 66 35 26 28 24 19 54 61 33 250mb Dir: 354 334 323 316 282 254 255 333 2 171 175 214 254 218 227 250mb Speed(kt): 41 32 36 32 26 26 33 15 9 2 7 12 18 35 38 200mb GPH (m): 12174 12174 12181 12180 12163 12159 12164 12185 12193 12201 12200 12186 12154 12129 12098 200mb Temp (C): -48.7 -51.1 -52.1 -55.3 -56.0 -57.0 -55.8 -55.2 -55.2 -55.1 -55.4 -55.0 -55.2 -56.0 -56.2 200mb Dewpt(C): -76.8 -72.4 -74.5 -66.7 -67.0 -65.5 -68.8 -67.8 -64.1 -65.9 -63.8 -69.1 -65.8 -68.0 -70.9 200mb RH (%): 3 7 6 25 26 36 20 22 35 27 37 18 28 23 16 200mb Dir: 336 306 297 289 276 256 277 2 11 228 172 195 237 229 232 200mb Speed(kt): 29 27 28 26 31 29 23 20 8 1 9 7 17 37 45 150mb GPH (m): 14030 14023 14027 14011 13986 13982 13992 14011 14010 14018 14017 14007 13978 13954 13928 150mb Temp (C): -56.4 -56.4 -56.0 -56.5 -56.9 -55.8 -56.2 -56.5 -58.5 -58.4 -57.8 -57.8 -57.7 -56.8 -55.9 150mb Dewpt(C): -83.1 -83.1 -82.8 -83.3 -83.4 -82.6 -82.9 -83.2 -82.9 -82.8 -82.3 -82.3 -79.4 -83.4 -82.9 150mb RH (%): 3 3 3 3 3 3 3 3 4 4 4 4 6 3 3 150mb Dir: 326 266 264 253 259 258 284 328 328 213 235 214 240 237 232 150mb Speed(kt): 17 24 24 28 30 31 22 16 8 9 12 12 24 35 42 100mb GPH (m): 16580 16576 16574 16560 16546 16539 16547 16555 16541 16548 16545 16542 16513 16502 16488 100mb Temp (C): -59.3 -59.3 -59.7 -59.3 -58.8 -59.7 -58.8 -59.8 -60.2 -59.9 -60.3 -60.0 -60.0 -58.9 -58.2 100mb Dewpt(C): -87.7 -87.9 -88.2 -87.9 -87.5 -88.2 -87.6 -88.3 -85.9 -88.6 -88.8 -88.5 -88.4 -87.6 -87.1 100mb RH (%): 2 2 2 2 2 2 2 2 3 2 2 2 2 2 2 100mb Dir: 275 258 240 260 256 259 265 261 264 249 241 243 239 237 244 100mb Speed(kt): 17 11 27 27 27 27 27 22 19 17 23 22 24 29 34