Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 0Z AUG 18, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 993.7 994.9 995.3 996.7 995.0 995.4 994.6 994.9 991.0 991.0 990.6 991.0 989.3 991.5 992.7 Mean SLP (mb): 1017.0 1018.8 1019.5 1020.9 1018.6 1019.5 1018.9 1019.2 1014.5 1014.8 1014.6 1014.9 1012.5 1015.3 1016.8 2m agl Tmp (F): 80.4 65.8 58.9 61.1 74.3 61.4 54.9 58.6 76.9 65.2 57.9 69.9 81.9 68.3 61.6 2m agl Dewpt(F): 63.0 60.3 58.1 59.3 61.0 56.3 54.2 55.4 57.6 58.3 56.7 61.0 61.4 62.0 58.7 2m agl RH (%): 54 82 97 94 62 83 97 89 50 78 95 72 48 80 90 10m agl Dir: 299 303 281 262 298 327 2 293 308 283 81 274 296 326 230 10m agl Spd(kt): 5 4 2 2 5 3 1 2 6 1 2 3 5 2 1 6hr Precip (in): 0.00 0.00 0.00 0.01 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 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Sfc CAPE (J/kg): 463.9 0.0 4.6 5.0 0.0 0.0 3.5 3.8 2.6 0.0 0.0 3.9 79.5 0.0 0.0 Sfc CINH (J/kg):-131.7 0.0 0.0 -1.6 0.0 0.0 0.0 0.0 -46.0 -0.2 0.0 -19.8 -408.2 -52.3 0.0 0-3km Hel(J/kg): 46.6 35.3 53.9 33.2 17.6 31.5 28.6 28.2 52.7 68.8 69.3 77.7 102.8 86.4 49.0 Precip H20 (in): 0.79 0.86 0.78 0.76 0.73 0.51 0.53 0.64 0.75 0.83 0.94 0.91 0.93 0.96 1.02 Lifted Index(C): -2.9 -0.8 3.3 4.0 3.0 8.1 11.2 6.6 2.8 3.8 4.1 2.8 -0.7 1.1 -0.9 700mb VV(-ub/s): -2.3 -2.3 -0.9 -0.7 -0.7 -2.6 -0.7 -1.0 -1.7 -0.9 -1.3 -0.4 0.2 -2.2 -1.8 Thk1000-500mb(m)5695.3 5688.2 5677.2 5680.1 5707.9 5706.5 5700.8 5704.4 5738.5 5737.8 5731.6 5733.5 5747.5 5727.1 5703.9 Thk1000-850mb(m)1400.0 1389.4 1378.0 1375.3 1391.5 1384.2 1374.8 1378.5 1402.6 1397.2 1392.0 1397.6 1413.4 1400.9 1385.5 Thk850-700mb(m):1625.7 1628.2 1626.8 1626.6 1629.2 1633.2 1633.1 1634.3 1640.3 1643.9 1643.7 1643.8 1644.4 1641.8 1637.8 SWEAT Index: 19.5 21.2 30.8 29.6 42.9 31.8 41.4 65.6 69.6 27.8 46.3 48.9 57.8 64.6 65.6 Total Totals Idx 35.6 34.6 31.8 33.8 34.4 27.0 22.1 38.7 40.6 36.6 34.1 30.2 30.1 23.0 29.3 Frz Hgt(ft amsl) 13933 13911 13952 14150 14439 14642 15044 15050 14930 15112 15000 14909 14650 14212 13962 0WetBlbHgt(amsl) 9892 9927 10451 9433 10905 10817 10647 10459 10212 11575 11852 12136 11777 13015 11888 Equil Prs (mb): 230 995 995 997 995 995 995 995 991 991 991 991 278 992 993 Equil Hgt(amsl): 37118 26 26 26 26 26 26 26 26 26 26 26 33220 26 26 Hail Size(in): 0.46 0.56 0.49 0.46 0.08 0.00 0.00 0.00 0.21 0.00 0.00 0.00 0.00 0.18 0.10 Conv Wind Gust: 55.7 51.5 52.2 48.4 53.4 53.7 52.8 51.6 55.8 52.6 54.7 56.3 59.8 56.7 54.4 Showalter Index: 8.0 8.4 9.8 9.0 8.4 12.2 13.9 5.8 4.6 6.9 8.2 9.2 9.4 11.7 10.7 Cap Strength(C): 3.0 -999.9 -999.9 6.6 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 0.0 -999.9 -999.9 Storm Dir (deg): 278 299 308 317 311 310 302 280 271 252 249 235 241 239 240 Storm Spd (kts): 7 7 9 7 9 7 7 6 8 9 11 12 15 16 15 2m HeatIndex(F): 82 66 59 61 74 61 55 59 77 65 58 70 83 68 62 2m WindChill(F): 80 66 59 61 74 61 55 59 77 65 58 70 82 68 62 1000mb GPH (m): 148 160 164 176 161 165 158 160 125 126 123 126 110 131 141 950mb GPH (m): 597 601 598 610 604 601 588 591 571 566 560 566 560 574 577 950mb Temp (C): 21.5 18.2 15.4 13.4 18.2 17.2 13.7 14.0 20.0 18.6 17.1 17.8 23.2 20.6 16.0 950mb Dewpt(C): 15.5 15.5 14.0 13.4 14.6 4.8 11.0 8.2 12.7 14.4 14.3 13.6 14.8 13.6 14.6 950mb RH (%): 67 84 91 100 79 43 83 67 62 76 83 76 58 63 91 950mb Dir: 305 341 317 309 301 330 315 330 313 347 314 239 299 312 193 950mb Speed(kt): 6 8 4 2 6 6 2 1 6 4 1 0 5 2 4 900mb GPH (m): 1062 1063 1057 1067 1066 1063 1047 1051 1037 1031 1023 1031 1029 1041 1039 900mb Temp (C): 17.9 17.0 15.8 15.3 17.6 17.9 16.6 17.6 19.9 20.3 19.8 20.6 21.5 19.3 16.0 900mb Dewpt(C): 5.0 8.8 9.2 10.9 5.7 -4.8 2.2 3.6 7.7 6.8 8.7 6.4 5.4 11.4 15.4 900mb RH (%): 42 58 64 74 45 20 37 38 44 40 48 39 34 59 97 900mb Dir: 310 284 314 319 322 304 311 318 339 312 305 217 276 234 266 900mb Speed(kt): 6 5 9 10 12 8 8 6 6 3 3 1 3 8 5 850mb GPH (m): 1548 1550 1542 1551 1552 1549 1532 1539 1528 1523 1515 1524 1523 1532 1527 850mb Temp (C): 16.5 17.0 16.2 15.6 15.7 16.5 16.9 17.4 19.1 19.8 20.1 20.9 21.2 19.9 18.5 850mb Dewpt(C): -5.3 -6.3 -7.1 -2.2 0.5 -7.4 -11.6 3.2 4.0 -0.1 -4.7 -11.6 -10.5 -16.0 -7.8 850mb RH (%): 21 19 19 29 35 18 13 38 36 25 18 10 11 7 16 850mb Dir: 264 288 311 324 324 306 316 318 311 281 231 197 222 230 240 850mb Speed(kt): 4 7 11 11 14 9 10 6 4 3 4 6 6 9 8 800mb GPH (m): 2062 2064 2055 2063 2064 2062 2047 2054 2046 2042 2035 2044 2043 2050 2044 800mb Temp (C): 15.2 15.2 14.5 14.8 14.5 15.7 16.0 16.2 17.8 18.2 18.0 18.1 17.9 17.3 16.8 800mb Dewpt(C): -16.5 -8.0 -11.5 -17.9 -16.0 -17.9 -18.1 -10.1 -22.4 -14.0 -8.2 -6.4 -2.4 -7.4 -7.6 800mb RH (%): 10 19 15 9 10 8 8 15 5 10 16 18 24 17 18 800mb Dir: 224 285 282 296 298 297 304 271 250 240 214 204 218 233 230 800mb Speed(kt): 7 8 10 9 12 10 9 4 6 7 10 12 13 11 11 750mb GPH (m): 2603 2606 2596 2605 2607 2607 2591 2599 2593 2590 2582 2591 2590 2597 2589 750mb Temp (C): 11.4 11.6 12.1 12.4 13.2 13.7 13.6 13.5 14.0 14.6 14.4 14.0 14.1 14.0 13.8 750mb Dewpt(C): -9.4 -9.4 -17.3 -18.3 -22.8 -22.1 -22.8 -18.9 -9.8 -13.7 -6.6 -5.2 -6.5 -9.9 -8.3 750mb RH (%): 22 22 11 10 6 7 6 9 18 13 22 25 23 18 20 750mb Dir: 227 274 272 281 274 276 274 242 231 233 209 197 210 223 227 750mb Speed(kt): 8 9 14 11 13 11 10 7 10 13 14 16 19 18 14 700mb GPH (m): 3174 3178 3169 3178 3181 3182 3166 3173 3168 3167 3159 3168 3167 3174 3165 700mb Temp (C): 7.2 8.1 8.3 8.3 9.0 9.3 9.0 9.0 9.9 9.9 9.3 9.9 10.2 9.9 8.6 700mb Dewpt(C): -12.7 -14.2 -10.5 -18.8 -9.0 -10.5 -10.4 -12.1 -16.9 -3.8 1.5 -9.8 -8.1 -4.6 -3.6 700mb RH (%): 23 19 25 13 27 23 24 21 13 37 57 24 27 35 41 700mb Dir: 235 265 271 276 268 272 261 239 229 222 214 201 206 212 214 700mb Speed(kt): 10 12 18 12 16 12 10 8 12 19 17 19 25 26 21 650mb GPH (m): 3779 3784 3776 3784 3790 3791 3774 3782 3778 3777 3768 3778 3778 3784 3772 650mb Temp (C): 3.3 3.3 4.1 3.8 4.7 5.1 4.9 5.0 5.6 5.2 5.4 5.5 5.3 4.9 3.9 650mb Dewpt(C): -15.5 -11.9 -12.8 -13.0 -15.0 -15.9 -17.9 -20.6 -17.0 -12.1 -11.5 -5.8 -7.6 -3.1 -5.5 650mb RH (%): 24 32 28 28 22 20 17 14 18 27 28 44 38 56 50 650mb Dir: 237 256 269 269 263 269 251 238 225 215 217 207 205 202 202 650mb Speed(kt): 15 15 22 14 18 12 10 11 15 21 22 23 27 33 31 600mb GPH (m): 4421 4426 4419 4428 4435 4437 4420 4428 4426 4425 4417 4426 4425 4430 4415 600mb Temp (C): -1.2 -1.4 -1.4 -0.8 -0.3 0.2 1.1 1.1 0.8 1.2 1.0 1.0 0.3 -0.9 -1.3 600mb Dewpt(C): -17.0 -14.0 -14.8 -15.9 -15.9 -16.4 -30.7 -34.1 -18.2 -18.9 -10.7 -10.2 -8.4 -2.4 -7.4 600mb RH (%): 29 38 35 31 30 28 7 5 23 21 41 43 52 89 63 600mb Dir: 237 248 269 268 262 270 257 231 227 209 217 209 206 197 203 600mb Speed(kt): 17 16 23 12 13 10 11 11 15 20 27 27 31 38 36 550mb GPH (m): 5108 5113 5104 5116 5125 5128 5113 5120 5119 5118 5111 5119 5116 5118 5103 550mb Temp (C): -6.3 -6.4 -6.8 -5.5 -4.4 -4.3 -3.4 -3.5 -3.5 -3.4 -3.4 -4.6 -5.2 -6.0 -5.2 550mb Dewpt(C): -21.2 -17.5 -18.1 -22.1 -22.3 -23.7 -36.4 -32.8 -19.0 -18.5 -13.0 -11.2 -7.9 -13.3 -20.1 550mb RH (%): 30 41 41 26 24 21 6 9 29 30 47 60 81 56 30 550mb Dir: 237 246 272 278 251 257 255 237 225 209 221 204 206 198 204 550mb Speed(kt): 16 14 15 6 10 11 17 11 16 20 33 33 37 41 41 500mb GPH (m): 5844 5849 5841 5856 5869 5871 5858 5865 5864 5864 5855 5860 5857 5858 5845 500mb Temp (C): -12.2 -12.0 -11.3 -10.2 -9.1 -8.9 -8.4 -9.0 -8.8 -8.4 -9.4 -10.4 -9.7 -9.6 -9.3 500mb Dewpt(C): -24.4 -22.6 -23.1 -26.6 -27.5 -36.9 -36.4 -24.5 -22.0 -18.7 -15.7 -14.0 -17.7 -23.0 -24.5 500mb RH (%): 36 41 38 25 21 9 9 28 34 44 60 75 53 33 28 500mb Dir: 243 249 268 278 244 247 247 233 220 212 220 206 206 204 207 500mb Speed(kt): 11 6 10 8 9 13 21 16 15 22 38 37 45 47 49 450mb GPH (m): 6639 6646 6641 6659 6675 6677 6665 6671 6671 6673 6659 6664 6662 6663 6651 450mb Temp (C): -17.6 -17.1 -16.3 -15.5 -15.0 -14.3 -14.2 -14.6 -14.5 -14.0 -15.5 -14.9 -14.8 -14.7 -15.0 450mb Dewpt(C): -25.0 -25.5 -30.9 -33.8 -34.9 -46.1 -36.5 -30.2 -23.3 -27.9 -20.1 -25.8 -27.2 -37.1 -23.6 450mb RH (%): 53 48 28 20 17 5 14 26 48 30 68 39 35 14 48 450mb Dir: 253 287 255 253 240 243 237 224 218 217 217 210 209 208 210 450mb Speed(kt): 10 7 7 7 11 16 22 17 20 25 42 42 53 53 53 400mb GPH (m): 7511 7518 7516 7537 7554 7559 7547 7550 7552 7554 7538 7544 7543 7543 7529 400mb Temp (C): -23.2 -23.4 -22.6 -21.4 -20.9 -20.2 -20.9 -21.7 -20.8 -20.7 -21.2 -21.2 -20.6 -21.1 -21.6 400mb Dewpt(C): -31.1 -34.0 -41.8 -47.6 -55.4 -57.3 -32.7 -34.2 -31.3 -32.1 -31.0 -31.5 -36.3 -37.1 -33.2 400mb RH (%): 50 38 17 8 3 3 35 32 39 36 42 40 24 23 35 400mb Dir: 235 291 302 170 237 239 239 237 230 224 218 214 211 211 212 400mb Speed(kt): 13 6 2 3 15 24 24 19 31 37 45 49 56 56 59 350mb GPH (m): 8473 8480 8482 8507 8524 8532 8516 8518 8523 8525 8509 8514 8515 8512 8498 350mb Temp (C): -30.5 -30.3 -29.4 -28.4 -28.7 -28.4 -29.0 -28.8 -28.2 -28.8 -28.0 -28.1 -28.0 -28.8 -28.7 350mb Dewpt(C): -48.4 -40.6 -50.7 -53.0 -54.4 -48.0 -37.5 -36.4 -42.3 -33.4 -40.6 -40.8 -44.5 -40.2 -43.0 350mb RH (%): 17 37 12 8 7 15 45 49 26 65 30 30 20 34 25 350mb Dir: 222 251 306 135 219 227 223 223 231 220 221 216 214 212 214 350mb Speed(kt): 15 9 4 4 13 27 25 25 39 45 50 56 56 62 67 300mb GPH (m): 9549 9558 9562 9592 9607 9616 9597 9601 9609 9611 9599 9602 9602 9597 9584 300mb Temp (C): -39.0 -38.8 -38.2 -37.2 -37.4 -38.0 -38.4 -38.1 -36.5 -36.7 -36.1 -36.2 -36.4 -36.7 -36.2 300mb Dewpt(C): -57.7 -55.8 -56.3 -50.4 -61.4 -50.4 -46.5 -44.3 -54.6 -44.5 -48.3 -47.9 -48.0 -45.1 -48.3 300mb RH (%): 13 16 15 26 7 28 44 54 15 46 29 30 31 43 29 300mb Dir: 252 297 57 93 178 240 230 215 238 228 224 216 215 216 215 300mb Speed(kt): 25 7 11 15 10 28 33 20 46 53 58 64 66 75 78 250mb GPH (m): 10772 10782 10790 10827 10840 10844 10828 10828 10847 10848 10838 10842 10842 10836 10827 250mb Temp (C): -49.5 -49.1 -47.1 -46.0 -46.9 -47.9 -47.1 -48.3 -46.1 -46.0 -45.4 -45.5 -45.2 -45.1 -44.9 250mb Dewpt(C): -54.9 -54.5 -56.3 -54.3 -62.3 -56.3 -59.9 -53.1 -52.7 -54.8 -55.5 -55.0 -53.3 -56.0 -52.1 250mb RH (%): 55 55 36 40 17 40 24 59 49 38 33 36 41 30 46 250mb Dir: 216 256 64 88 138 233 246 217 238 229 224 218 217 217 215 250mb Speed(kt): 30 4 25 31 15 32 48 36 64 62 73 70 75 87 87 200mb GPH (m): 12202 12220 12238 12276 12285 12287 12265 12265 12293 12300 12289 12293 12297 12292 12280 200mb Temp (C): -54.9 -54.1 -54.5 -55.9 -55.5 -55.5 -57.3 -57.0 -56.9 -54.9 -55.6 -55.1 -54.4 -54.1 -54.9 200mb Dewpt(C): -68.9 -70.1 -68.7 -64.0 -68.7 -69.6 -65.8 -64.7 -61.2 -65.2 -63.7 -64.6 -67.1 -67.9 -63.2 200mb RH (%): 18 14 18 38 20 18 36 40 60 29 38 32 22 19 38 200mb Dir: 220 313 47 94 115 224 231 238 236 232 224 219 218 221 217 200mb Speed(kt): 20 4 10 29 15 24 55 64 74 69 74 66 77 87 88 150mb GPH (m): 14052 14071 14071 14095 14110 14113 14087 14081 14095 14102 14092 14100 14112 14112 14101 150mb Temp (C): -53.2 -53.3 -55.8 -57.3 -56.5 -57.3 -57.5 -55.9 -57.9 -59.7 -60.1 -60.4 -58.9 -57.5 -57.6 150mb Dewpt(C): -83.3 -83.4 -82.6 -81.9 -81.4 -82.2 -79.3 -82.6 -78.4 -78.5 -76.2 -73.9 -76.1 -78.4 -77.4 150mb RH (%): 2 2 3 4 4 4 6 3 7 9 12 18 11 7 8 150mb Dir: 231 248 241 238 225 217 219 226 230 233 228 218 219 222 218 150mb Speed(kt): 20 21 14 12 14 22 29 33 48 51 51 51 54 55 54 100mb GPH (m): 16646 16662 16651 16659 16676 16674 16655 16652 16667 16669 16651 16661 16678 16685 16669 100mb Temp (C): -55.5 -56.2 -57.0 -57.1 -57.7 -57.8 -57.9 -57.7 -56.9 -57.2 -58.1 -57.3 -58.1 -58.6 -57.6 100mb Dewpt(C): -89.5 -90.0 -90.6 -90.6 -86.7 -91.1 -87.3 -91.4 -90.5 -90.7 -87.0 -86.4 -87.0 -87.4 -86.6 100mb RH (%): 1 1 1 1 2 1 2 1 1 1 2 2 2 2 2 100mb Dir: 258 249 267 256 250 250 246 238 238 232 247 208 240 219 214 100mb Speed(kt): 18 15 19 16 17 18 20 18 21 29 22 19 22 27 26