Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 0Z SEP 20, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 993.6 993.1 993.2 993.5 990.7 990.6 991.8 993.4 993.2 994.1 993.9 994.8 994.6 996.2 996.4 Mean SLP (mb): 1017.3 1017.2 1017.6 1017.8 1014.4 1014.6 1016.1 1017.7 1017.3 1018.5 1018.4 1019.2 1018.7 1020.6 1021.1 2m agl Tmp (F): 70.4 60.5 53.0 57.9 72.2 60.5 54.9 56.0 61.9 56.5 53.8 55.1 62.1 54.1 49.1 2m agl Dewpt(F): 59.1 57.8 52.2 57.0 60.4 57.0 54.5 53.3 52.5 51.5 50.7 49.1 48.6 47.5 47.3 2m agl RH (%): 66 91 97 97 66 88 99 90 71 83 89 80 60 78 93 10m agl Dir: 296 20 65 288 301 299 274 287 310 297 280 277 291 291 120 10m agl Spd(kt): 5 1 2 2 6 2 1 3 6 4 3 3 6 2 1 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 0.01 0.00 0.00 0.00 AccumPrecip(in): 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.02 0.02 0.02 0.02 Sfc CAPE (J/kg): 8.5 0.0 0.0 4.0 27.1 0.0 2.9 9.2 0.0 6.4 13.6 10.4 4.3 0.0 0.0 Sfc CINH (J/kg): -38.3 0.0 0.0 0.0 -38.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0-3km Hel(J/kg): -17.5 23.5 36.4 34.5 95.3 123.9 93.4 48.4 47.1 36.7 31.0 28.9 27.5 57.6 42.4 Precip H20 (in): 0.81 0.78 0.76 0.71 0.82 0.91 0.93 0.81 0.62 0.59 0.47 0.60 0.65 0.64 0.65 Lifted Index(C): 0.1 1.0 2.6 3.9 0.9 1.4 1.9 2.9 8.0 9.7 10.4 9.2 8.8 10.6 11.0 700mb VV(-ub/s): -1.2 0.3 -0.1 0.1 0.0 1.8 1.9 -0.2 -0.2 -1.0 0.8 1.5 -2.0 -2.1 -1.2 Thk1000-500mb(m)5673.9 5671.6 5665.1 5668.1 5691.0 5683.2 5657.4 5638.0 5637.7 5625.9 5607.9 5573.2 5565.8 5560.4 5543.4 Thk1000-850mb(m)1388.5 1387.4 1381.7 1382.0 1397.3 1391.1 1373.1 1363.6 1364.0 1355.2 1349.4 1346.3 1352.3 1346.3 1343.3 Thk850-700mb(m):1616.9 1617.6 1617.8 1619.2 1624.3 1625.9 1622.3 1616.8 1612.5 1610.1 1602.8 1593.4 1584.6 1579.3 1576.6 SWEAT Index: 66.8 37.8 68.4 46.9 68.6 122.6 111.2 108.2 33.0 35.4 53.9 66.9 67.4 66.2 74.7 Total Totals Idx 45.5 44.0 43.5 42.1 44.1 47.1 45.4 45.4 32.9 30.7 22.5 38.2 25.9 31.0 33.3 Frz Hgt(ft amsl) 14001 13968 13850 13689 13764 13562 13298 13042 13283 13429 13160 12331 10864 10310 9778 0WetBlbHgt(amsl) 8690 8877 8421 8722 9577 9754 9963 9399 8421 9128 7028 6656 7058 6440 7397 Equil Prs (mb): 434 993 993 994 390 991 992 993 993 994 994 995 995 996 996 Equil Hgt(amsl): 22597 26 26 26 25170 26 26 26 26 26 26 26 26 26 26 Hail Size(in): 0.49 0.38 0.33 0.28 0.50 0.43 0.34 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Conv Wind Gust: 44.4 47.5 50.1 51.1 51.0 50.6 49.0 19.5 48.9 48.5 52.7 52.1 47.9 44.1 42.4 Showalter Index: 2.4 3.4 3.3 4.3 3.0 0.7 1.8 2.0 10.0 11.1 14.1 8.0 14.6 12.2 10.8 Cap Strength(C): 3.5 -999.9 -999.9 -999.9 0.0 -999.9 -999.9 8.6 -999.9 7.3 7.4 -999.9 -999.9 -999.9 -999.9 Storm Dir (deg): 310 229 233 219 237 232 250 264 307 300 288 275 291 289 280 Storm Spd (kts): 4 3 4 5 7 9 8 8 8 8 11 14 17 16 16 2m HeatIndex(F): 70 60 53 58 72 60 55 56 62 56 54 55 62 54 49 2m WindChill(F): 70 60 53 58 72 60 55 56 62 56 54 55 62 54 49 1000mb GPH (m): 149 145 146 149 123 124 135 148 146 154 153 160 158 172 174 950mb GPH (m): 589 582 579 581 566 561 565 577 579 584 580 587 591 601 600 950mb Temp (C): 16.8 16.2 15.3 15.6 17.9 16.8 12.9 9.6 12.1 9.8 8.7 8.3 12.0 10.2 9.6 950mb Dewpt(C): 13.9 14.3 13.5 11.7 14.5 14.3 12.2 8.9 10.3 9.5 8.4 8.1 7.9 7.7 6.9 950mb RH (%): 83 88 89 77 80 85 95 96 89 99 98 98 75 84 83 950mb Dir: 307 46 347 17 310 344 311 304 313 317 317 291 295 325 290 950mb Speed(kt): 5 2 3 2 6 4 5 2 7 9 7 4 8 7 2 900mb GPH (m): 1050 1044 1040 1043 1030 1024 1022 1029 1031 1032 1026 1032 1041 1049 1047 900mb Temp (C): 16.9 18.6 17.7 18.1 20.3 19.1 15.1 12.6 11.6 10.1 8.6 7.6 7.8 7.5 7.9 900mb Dewpt(C): 10.3 7.8 7.7 7.6 9.8 9.8 11.6 9.7 3.7 3.7 3.1 1.4 6.6 3.5 0.6 900mb RH (%): 64 48 51 49 50 54 79 82 58 64 68 65 92 75 59 900mb Dir: 348 102 109 99 75 115 291 307 332 329 336 330 299 313 321 900mb Speed(kt): 2 4 3 6 6 6 3 7 13 10 9 11 8 6 8 850mb GPH (m): 1537 1533 1528 1531 1521 1515 1508 1512 1510 1510 1502 1506 1510 1518 1517 850mb Temp (C): 16.1 16.5 16.6 16.7 18.0 18.2 15.9 14.4 13.0 12.5 11.6 9.3 7.4 6.6 6.4 850mb Dewpt(C): 4.0 1.8 3.9 2.2 3.6 7.3 7.0 6.8 -4.5 -6.3 -14.6 -1.9 -8.3 -1.4 -0.3 850mb RH (%): 44 36 42 37 38 48 54 60 29 26 14 45 32 56 62 850mb Dir: 161 125 127 135 147 137 213 286 318 309 323 308 306 308 293 850mb Speed(kt): 4 4 6 5 6 9 3 5 9 9 14 12 14 11 11 800mb GPH (m): 2049 2044 2039 2043 2035 2031 2021 2022 2018 2016 2006 2007 2008 2015 2014 800mb Temp (C): 12.8 12.6 12.2 12.8 14.3 14.4 13.8 12.9 12.1 11.3 10.1 7.8 6.4 6.5 6.1 800mb Dewpt(C): -1.7 1.3 3.7 2.2 -0.7 4.1 3.8 -0.9 -16.9 -8.9 -18.1 -11.9 -6.5 -11.0 -5.1 800mb RH (%): 36 45 55 48 35 49 50 38 11 23 12 23 39 27 44 800mb Dir: 162 197 163 174 178 168 193 233 280 289 279 279 286 287 263 800mb Speed(kt): 9 7 8 8 9 10 8 8 9 9 11 13 18 13 14 750mb GPH (m): 2586 2582 2577 2581 2575 2571 2561 2561 2555 2552 2539 2536 2536 2541 2539 750mb Temp (C): 9.3 9.5 9.8 9.3 10.2 10.2 10.2 9.6 9.4 8.9 8.5 6.3 4.9 3.2 2.8 750mb Dewpt(C): -12.8 -11.8 -18.6 -13.1 -5.0 -1.1 -0.4 -6.6 -14.4 -9.6 -22.5 -22.7 -14.6 -2.7 -6.3 750mb RH (%): 19 21 12 19 34 45 47 31 17 26 9 10 23 65 51 750mb Dir: 137 196 182 179 192 197 197 216 250 263 252 255 272 276 254 750mb Speed(kt): 6 7 7 10 12 16 14 14 11 10 15 16 23 18 18 700mb GPH (m): 3154 3150 3145 3150 3145 3141 3130 3128 3123 3120 3105 3099 3095 3097 3094 700mb Temp (C): 6.5 7.0 7.3 7.2 7.4 6.9 6.0 5.7 6.3 6.0 5.4 5.1 1.4 0.3 -0.7 700mb Dewpt(C): -20.8 -23.3 -24.2 -25.2 -20.3 -17.3 -10.5 -13.4 -22.0 -12.2 -30.3 -42.6 -5.0 -8.0 -11.2 700mb RH (%): 12 9 9 8 12 16 29 24 11 26 6 2 62 54 45 700mb Dir: 67 208 212 184 198 207 213 212 245 248 249 248 260 257 249 700mb Speed(kt): 1 4 4 6 10 16 17 15 14 12 18 21 28 25 21 650mb GPH (m): 3758 3755 3750 3755 3750 3745 3732 3730 3724 3722 3706 3699 3688 3688 3681 650mb Temp (C): 3.5 3.8 3.5 3.3 3.4 2.8 2.3 1.7 2.0 2.4 2.2 0.5 -2.5 -3.1 -4.0 650mb Dewpt(C): -23.8 -22.0 -23.1 -22.4 -20.8 -21.2 -19.5 -20.0 -22.8 -17.4 -30.4 -18.4 -11.8 -12.9 -19.6 650mb RH (%): 12 13 12 13 15 15 18 18 14 22 7 23 49 47 29 650mb Dir: 321 240 228 197 208 213 219 220 246 245 246 245 246 247 242 650mb Speed(kt): 4 2 4 5 10 14 15 14 14 13 19 23 34 31 28 600mb GPH (m): 4401 4397 4392 4396 4392 4385 4372 4368 4364 4362 4345 4333 4317 4317 4310 600mb Temp (C): -0.9 -1.1 -1.3 -1.8 -1.5 -1.8 -2.2 -2.8 -1.9 -1.7 -2.4 -4.8 -6.0 -5.2 -5.2 600mb Dewpt(C): -23.1 -24.4 -23.9 -24.7 -25.5 -25.3 -26.2 -25.9 -26.8 -35.0 -31.0 -19.8 -14.6 -32.6 -41.2 600mb RH (%): 17 15 16 16 14 15 14 15 13 6 9 30 51 10 4 600mb Dir: 307 231 234 197 206 213 220 225 259 249 238 233 245 249 249 600mb Speed(kt): 6 2 5 6 12 16 16 15 12 13 22 27 39 38 38 550mb GPH (m): 5088 5084 5077 5081 5077 5070 5056 5051 5049 5046 5028 5009 4994 4998 4987 550mb Temp (C): -6.4 -7.1 -7.5 -6.8 -6.3 -6.8 -6.6 -7.1 -6.9 -7.2 -7.6 -11.1 -9.3 -7.1 -9.3 550mb Dewpt(C): -24.1 -21.1 -26.4 -33.1 -31.3 -31.4 -31.7 -32.7 -19.6 -34.9 -35.6 -18.5 -24.1 -43.7 -33.6 550mb RH (%): 23 32 21 11 12 12 12 11 36 9 9 55 29 4 12 550mb Dir: 315 215 228 229 216 212 222 230 269 248 238 219 248 246 246 550mb Speed(kt): 7 3 8 8 13 17 19 15 13 14 24 35 39 44 45 500mb GPH (m): 5822 5817 5811 5817 5814 5807 5792 5786 5784 5780 5760 5733 5724 5732 5717 500mb Temp (C): -12.7 -12.8 -11.5 -11.6 -11.3 -10.8 -11.2 -12.1 -12.2 -12.3 -12.8 -15.3 -13.4 -12.9 -13.6 500mb Dewpt(C): -26.3 -32.0 -41.7 -39.0 -42.6 -40.8 -39.9 -39.8 -21.1 -46.5 -42.5 -17.1 -56.9 -31.7 -36.9 500mb RH (%): 32 19 7 9 6 7 8 8 48 4 7 87 2 20 13 500mb Dir: 280 247 256 232 228 221 222 236 276 245 240 223 253 247 239 500mb Speed(kt): 10 7 10 10 14 17 21 16 15 17 27 43 40 44 54 450mb GPH (m): 6618 6613 6609 6615 6614 6608 6592 6583 6579 6574 6552 6526 6516 6524 6509 450mb Temp (C): -17.9 -17.5 -17.4 -17.0 -16.8 -16.0 -16.3 -17.4 -18.6 -18.4 -19.6 -18.4 -19.7 -19.5 -19.0 450mb Dewpt(C): -38.2 -39.4 -39.4 -42.2 -40.5 -39.3 -40.6 -38.6 -26.4 -43.7 -33.3 -20.1 -48.0 -34.6 -23.6 450mb RH (%): 16 14 14 10 12 12 11 15 51 10 29 87 7 26 68 450mb Dir: 278 276 268 247 235 233 223 233 269 247 236 236 255 253 238 450mb Speed(kt): 16 13 13 12 14 20 23 20 16 17 33 42 42 47 56 400mb GPH (m): 7487 7482 7478 7486 7487 7483 7464 7453 7445 7442 7415 7394 7377 7387 7375 400mb Temp (C): -24.5 -24.3 -23.9 -23.4 -22.9 -23.2 -23.6 -23.9 -25.0 -24.6 -26.0 -24.9 -26.7 -26.2 -25.0 400mb Dewpt(C): -42.3 -41.4 -41.2 -43.6 -45.4 -38.6 -35.6 -31.2 -30.4 -38.4 -29.0 -27.0 -52.6 -45.0 -27.4 400mb RH (%): 19 20 20 15 12 24 33 52 62 28 76 83 8 16 81 400mb Dir: 273 276 273 248 251 235 224 226 258 253 232 236 264 252 244 400mb Speed(kt): 21 18 14 12 16 20 26 25 20 20 37 42 45 51 61 350mb GPH (m): 8444 8439 8439 8449 8451 8445 8423 8411 8401 8399 8370 8346 8324 8336 8331 350mb Temp (C): -31.9 -31.9 -30.2 -29.8 -30.1 -30.5 -31.1 -31.3 -31.6 -32.0 -31.5 -34.1 -35.0 -33.4 -32.0 350mb Dewpt(C): -43.7 -44.8 -52.6 -51.5 -45.6 -42.2 -43.8 -38.7 -35.9 -48.1 -34.4 -37.3 -50.9 -39.2 -34.9 350mb RH (%): 32 28 10 11 22 32 29 49 67 20 76 73 20 57 76 350mb Dir: 272 282 288 208 251 227 226 221 251 268 230 233 267 261 245 350mb Speed(kt): 25 19 9 5 15 17 25 26 23 20 39 44 53 64 70 300mb GPH (m): 9513 9512 9515 9528 9530 9520 9497 9483 9472 9465 9439 9406 9378 9400 9397 300mb Temp (C): -40.7 -39.4 -38.8 -38.1 -37.7 -39.2 -39.6 -40.0 -40.4 -41.9 -41.7 -42.5 -43.8 -41.3 -41.8 300mb Dewpt(C): -46.2 -54.6 -52.0 -53.4 -58.3 -51.0 -47.4 -47.0 -44.1 -51.2 -45.0 -48.5 -58.9 -52.6 -45.5 300mb RH (%): 57 20 25 20 11 29 45 49 69 38 71 54 19 30 68 300mb Dir: 267 319 8 175 210 223 225 223 237 283 232 235 265 272 248 300mb Speed(kt): 34 15 7 2 7 18 23 27 26 26 40 45 58 75 81 250mb GPH (m): 10727 10733 10742 10757 10761 10746 10716 10702 10688 10671 10643 10612 10578 10609 10603 250mb Temp (C): -50.0 -48.1 -47.7 -47.2 -46.9 -47.4 -49.5 -49.4 -50.3 -52.0 -52.4 -51.8 -52.7 -52.2 -52.5 250mb Dewpt(C): -57.8 -61.9 -59.4 -59.5 -59.8 -62.8 -57.8 -53.6 -54.1 -59.3 -57.7 -58.4 -64.4 -66.2 -57.2 250mb RH (%): 41 21 27 25 23 17 40 63 65 43 55 47 25 19 59 250mb Dir: 267 359 10 40 165 173 231 225 217 269 239 242 263 264 250 250mb Speed(kt): 33 21 16 3 8 17 23 22 31 26 41 49 64 74 84 200mb GPH (m): 12157 12176 12188 12203 12207 12191 12148 12127 12109 12086 12056 12027 11997 12011 12004 200mb Temp (C): -57.0 -55.0 -54.9 -56.3 -55.9 -55.2 -56.3 -58.1 -58.9 -59.5 -60.3 -59.0 -56.7 -62.4 -63.8 200mb Dewpt(C): -67.9 -69.3 -65.8 -64.5 -64.7 -66.5 -67.6 -63.9 -66.9 -70.4 -67.7 -66.7 -67.4 -67.8 -66.9 200mb RH (%): 26 17 27 37 35 26 25 50 38 25 40 39 27 51 68 200mb Dir: 284 5 10 319 213 162 213 224 229 237 238 243 255 268 252 200mb Speed(kt): 24 26 16 7 5 21 23 24 36 32 36 49 59 84 80 150mb GPH (m): 13982 14001 14007 14015 14022 14005 13965 13943 13924 13896 13858 13839 13818 13809 13791 150mb Temp (C): -56.0 -57.1 -58.7 -59.4 -59.3 -59.0 -57.5 -57.0 -56.3 -55.7 -56.6 -54.9 -55.4 -57.0 -57.4 150mb Dewpt(C): -82.7 -81.6 -81.4 -80.7 -80.7 -81.7 -81.8 -80.2 -81.3 -85.0 -83.1 -84.3 -82.1 -81.5 -81.8 150mb RH (%): 3 4 5 6 6 5 4 5 4 2 3 2 3 4 4 150mb Dir: 286 338 330 227 215 185 226 228 227 227 235 241 245 243 247 150mb Speed(kt): 25 19 9 7 12 20 24 29 39 38 39 40 54 54 59 100mb GPH (m): 16546 16546 16538 16540 16546 16539 16505 16494 16480 16468 16427 16420 16406 16397 16377 100mb Temp (C): -58.7 -59.9 -60.9 -60.6 -60.6 -59.9 -59.5 -58.8 -58.3 -56.5 -56.6 -55.1 -54.4 -53.7 -53.7 100mb Dewpt(C): -87.4 -88.4 -86.4 -88.6 -86.6 -88.4 -88.0 -87.5 -87.1 -90.2 -85.9 -89.2 -88.7 -88.2 -88.2 100mb RH (%): 2 2 3 2 3 2 2 2 2 1 2 1 1 1 1 100mb Dir: 262 277 267 249 237 239 237 227 241 229 236 232 235 240 238 100mb Speed(kt): 23 21 17 14 21 25 25 31 34 33 37 35 39 38 42