Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z AUG 31, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 988.1 986.5 984.0 985.3 986.5 987.2 986.0 986.4 984.5 983.8 983.5 985.2 987.5 989.9 989.2 Mean SLP (mb): 1012.3 1010.2 1007.2 1009.0 1010.7 1011.3 1009.7 1010.4 1008.5 1007.9 1007.6 1009.4 1011.9 1014.2 1013.3 2m agl Tmp (F): 54.0 73.0 81.5 68.7 56.0 55.9 62.5 59.7 57.8 55.0 55.4 54.0 52.4 55.5 61.2 2m agl Dewpt(F): 47.6 50.1 49.6 51.5 52.7 53.4 54.4 53.2 51.8 53.7 54.5 53.1 50.8 52.9 49.0 2m agl RH (%): 79 43 31 53 88 91 74 79 80 95 97 97 94 91 64 10m agl Dir: 53 87 237 236 187 180 184 211 172 167 218 269 200 205 228 10m agl Spd(kt): 3 8 2 3 4 3 3 4 7 9 7 4 4 6 7 6hr Precip (in): 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.24 0.71 0.48 0.04 0.01 0.05 AccumPrecip(in): 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.03 0.27 0.98 1.46 1.50 1.51 1.56 Sfc CAPE (J/kg): 0.0 0.0 2.6 0.1 1.1 12.1 12.8 30.5 2.7 45.1 167.5 166.3 82.4 167.1 108.7 Sfc CINH (J/kg): 0.0 0.0 -6.5 -0.2 0.0 0.0 -7.7 -5.8 0.0 -0.1 0.0 0.0 -26.8 -0.1 0.0 0-3km Hel(J/kg): 67.7 101.3 76.4 88.4 47.2 46.9 18.1 12.4 126.1 229.5 143.3 89.4 106.9 85.8 109.2 Precip H20 (in): 0.99 0.74 0.88 0.99 1.00 1.00 0.97 0.98 0.98 1.08 1.02 0.87 0.70 0.72 0.64 Lifted Index(C): 4.5 6.6 3.2 1.3 3.4 3.2 4.6 1.9 3.5 5.2 4.2 1.6 0.5 2.6 2.6 700mb VV(-ub/s): 0.5 0.4 0.9 -0.7 1.7 1.3 -0.8 -2.3 2.6 12.4 7.9 10.0 -0.8 0.2 1.1 Thk1000-500mb(m)5657.2 5670.9 5679.7 5650.5 5611.3 5584.9 5571.2 5543.0 5526.0 5524.8 5505.8 5470.4 5441.4 5457.1 5481.8 Thk1000-850mb(m)1377.8 1388.9 1403.8 1387.1 1358.7 1352.7 1363.0 1357.9 1353.6 1349.8 1350.4 1345.3 1338.7 1341.9 1351.6 Thk850-700mb(m):1616.8 1617.9 1619.2 1612.1 1606.1 1594.2 1579.5 1570.5 1568.8 1563.1 1558.4 1554.7 1550.0 1550.9 1552.1 SWEAT Index: 77.2 41.2 38.2 113.9 111.7 148.2 147.2 147.4 170.5 226.3 146.2 112.1 158.5 98.4 223.7 Total Totals Idx 41.4 37.2 40.1 44.6 42.8 45.2 42.1 47.8 45.3 42.0 42.5 48.6 52.3 46.2 45.9 Frz Hgt(ft amsl) 12896 13184 12571 12657 12107 11478 10430 9421 8392 7852 7331 7044 6728 6863 6979 0WetBlbHgt(amsl) 10813 9228 10964 9863 10390 10265 9270 8465 8308 7742 7261 6876 6337 6416 6276 Equil Prs (mb): 988 987 984 985 987 987 784 748 984 721 603 555 494 529 635 Equil Hgt(amsl): 26 26 26 26 26 26 6915 8162 26 9017 13588 15659 18452 16901 12384 Hail Size(in): 0.00 0.00 0.00 0.29 0.14 0.00 0.00 0.00 0.00 0.00 0.23 0.11 -0.10 0.04 -0.01 Conv Wind Gust: 46.6 55.2 57.4 51.1 44.1 5.3 30.9 27.8 28.6 27.3 27.7 26.1 23.4 26.6 38.4 Showalter Index: 4.6 7.2 5.6 2.9 4.2 2.6 4.6 2.1 3.5 5.5 5.4 2.9 1.6 4.6 4.5 Cap Strength(C):-999.9 -999.9 -999.9 -999.9 3.0 5.4 0.0 0.0 -999.9 0.0 0.0 -1.2 0.0 -2.0 -999.9 Storm Dir (deg): 221 199 223 224 214 219 233 239 237 239 257 282 298 296 289 Storm Spd (kts): 7 10 10 14 13 13 15 16 19 26 21 15 14 15 18 2m HeatIndex(F): 54 73 80 69 56 56 62 60 58 55 55 54 52 56 61 2m WindChill(F): 54 73 82 69 56 56 62 60 58 55 55 54 52 56 61 1000mb GPH (m): 103 87 63 77 90 95 83 88 72 66 63 79 98 119 112 950mb GPH (m): 536 529 512 518 520 525 519 522 504 496 494 508 525 547 545 950mb Temp (C): 15.2 18.2 23.7 18.1 10.5 10.1 13.2 12.5 11.9 10.5 11.1 10.2 8.5 9.1 12.3 950mb Dewpt(C): 8.9 8.2 8.1 12.2 10.3 9.9 11.4 11.2 10.3 10.3 10.8 9.9 8.3 8.8 7.9 950mb RH (%): 65 51 36 67 98 99 89 92 89 98 98 98 99 98 74 950mb Dir: 78 88 231 268 186 188 186 216 187 176 217 254 208 206 228 950mb Speed(kt): 7 12 2 6 7 7 4 8 15 20 17 9 8 10 11 900mb GPH (m): 995 990 980 981 971 974 972 973 954 945 944 956 971 994 995 900mb Temp (C): 16.4 17.5 18.8 16.9 11.3 9.4 10.7 9.7 8.6 8.6 8.4 7.3 6.0 6.4 7.9 900mb Dewpt(C): 6.9 0.7 6.5 8.5 7.5 9.0 8.8 8.8 8.4 8.4 8.2 7.0 5.5 5.6 6.9 900mb RH (%): 52 31 43 57 77 97 87 94 99 98 99 98 97 95 94 900mb Dir: 97 120 218 193 216 213 223 220 205 200 229 271 248 248 229 900mb Speed(kt): 9 16 1 9 9 10 12 19 31 38 27 14 10 14 13 850mb GPH (m): 1480 1476 1467 1464 1448 1448 1446 1446 1425 1416 1414 1424 1437 1461 1464 850mb Temp (C): 15.5 15.9 15.6 13.1 11.0 8.8 7.5 6.9 6.3 5.6 5.3 4.5 3.3 3.6 3.8 850mb Dewpt(C): 3.4 -2.0 0.3 5.4 5.1 7.5 7.0 6.4 6.1 5.3 4.9 4.0 2.5 2.6 3.4 850mb RH (%): 44 28 35 59 66 92 97 97 99 98 97 96 95 93 97 850mb Dir: 128 139 172 190 225 227 238 219 219 213 244 286 255 263 233 850mb Speed(kt): 10 10 5 11 11 11 15 22 35 46 22 13 15 16 17 800mb GPH (m): 1992 1988 1978 1973 1954 1949 1943 1941 1921 1909 1906 1915 1927 1951 1954 800mb Temp (C): 12.8 13.4 13.4 12.0 10.9 8.7 5.0 3.8 3.9 2.3 2.1 1.4 0.6 0.8 1.0 800mb Dewpt(C): 2.1 -5.1 -4.4 0.0 -3.2 -2.7 2.4 3.1 3.7 2.1 1.8 0.7 -0.6 -0.8 -1.6 800mb RH (%): 48 27 28 43 36 44 83 95 99 98 98 95 92 89 82 800mb Dir: 141 157 187 195 205 224 233 224 214 209 240 271 257 265 245 800mb Speed(kt): 7 9 11 15 15 15 19 22 33 46 23 11 18 16 21 750mb GPH (m): 2530 2526 2517 2509 2489 2480 2469 2464 2443 2428 2424 2432 2442 2466 2470 750mb Temp (C): 9.1 9.6 10.1 8.9 7.7 5.6 3.3 1.3 0.6 -0.2 -1.2 -1.7 -2.0 -2.1 -1.9 750mb Dewpt(C): -2.2 -5.9 -3.6 -5.8 2.8 1.4 1.3 0.0 0.3 -0.5 -1.5 -2.2 -5.7 -3.4 -7.0 750mb RH (%): 44 32 37 34 71 74 87 91 98 98 98 96 76 91 68 750mb Dir: 172 181 187 206 190 208 209 218 217 210 229 253 260 268 253 750mb Speed(kt): 6 12 14 19 13 13 24 29 29 45 25 14 20 18 22 700mb GPH (m): 3097 3094 3086 3076 3054 3042 3026 3016 2994 2979 2972 2979 2987 3011 3016 700mb Temp (C): 5.4 5.5 5.6 5.5 4.8 2.6 0.8 -0.5 -2.2 -2.4 -3.7 -4.6 -4.9 -5.5 -4.1 700mb Dewpt(C): -3.3 -15.8 -2.9 -6.8 -3.8 -1.5 -3.4 -4.9 -2.5 -2.7 -4.2 -5.2 -14.0 -6.4 -21.1 700mb RH (%): 53 20 54 40 53 74 74 72 98 98 96 95 49 94 26 700mb Dir: 207 181 187 202 160 181 201 214 215 204 219 252 268 263 259 700mb Speed(kt): 7 14 17 24 18 15 22 25 27 45 28 21 22 21 25 650mb GPH (m): 3699 3695 3687 3678 3654 3638 3618 3607 3581 3565 3554 3558 3566 3589 3597 650mb Temp (C): 1.5 2.2 1.0 1.5 0.3 -0.8 -2.2 -3.1 -4.6 -4.6 -7.1 -8.3 -8.6 -9.0 -6.7 650mb Dewpt(C): -6.2 -11.0 -4.5 -4.8 -4.4 -6.9 -9.5 -9.7 -9.0 -5.1 -8.1 -10.1 -18.3 -15.9 -30.7 650mb RH (%): 56 37 66 62 70 63 57 60 71 96 93 87 46 57 13 650mb Dir: 223 181 191 185 162 178 198 210 212 212 215 251 275 261 264 650mb Speed(kt): 10 11 21 28 22 21 24 23 26 40 35 25 23 23 28 600mb GPH (m): 4338 4336 4325 4316 4290 4272 4249 4236 4206 4192 4175 4175 4181 4205 4216 600mb Temp (C): -2.6 -2.2 -3.4 -3.9 -4.5 -4.5 -6.0 -6.6 -8.8 -7.5 -9.6 -11.8 -12.9 -11.3 -10.3 600mb Dewpt(C): -8.6 -11.2 -10.9 -8.9 -11.5 -12.0 -22.4 -21.3 -12.9 -8.3 -10.8 -16.1 -21.3 -49.2 -36.5 600mb RH (%): 64 50 56 68 58 56 27 30 73 94 91 70 50 3 10 600mb Dir: 231 198 196 185 175 179 195 204 204 223 227 241 282 272 267 600mb Speed(kt): 12 13 24 32 27 27 28 25 27 34 39 30 22 25 31 550mb GPH (m): 5022 5021 5008 4996 4969 4951 4925 4909 4876 4866 4845 4836 4837 4865 4880 550mb Temp (C): -6.8 -6.8 -7.5 -8.8 -8.7 -9.1 -9.5 -11.2 -12.0 -11.0 -11.6 -15.5 -18.5 -16.0 -14.9 550mb Dewpt(C): -12.5 -13.4 -15.1 -12.1 -15.0 -19.0 -25.8 -20.9 -26.2 -12.1 -12.9 -24.8 -24.1 -41.8 -38.7 550mb RH (%): 64 59 55 77 61 45 26 45 30 92 91 46 62 9 12 550mb Dir: 233 206 196 188 183 179 191 196 195 226 230 247 281 277 272 550mb Speed(kt): 14 17 24 31 29 33 32 27 27 30 43 33 25 28 38 500mb GPH (m): 5760 5758 5743 5728 5701 5680 5654 5631 5598 5591 5569 5549 5540 5576 5594 500mb Temp (C): -11.3 -11.7 -12.1 -13.1 -13.4 -14.4 -13.8 -17.2 -16.4 -15.6 -16.2 -20.0 -23.2 -20.0 -19.4 500mb Dewpt(C): -16.9 -16.7 -17.8 -17.6 -18.8 -25.3 -38.9 -20.5 -28.5 -17.1 -17.7 -24.2 -40.1 -45.8 -38.4 500mb RH (%): 63 66 63 69 64 40 11 76 35 89 88 70 21 9 18 500mb Dir: 226 209 194 191 187 179 190 181 196 221 229 243 279 285 272 500mb Speed(kt): 17 22 25 27 29 37 34 27 26 29 44 38 32 35 47 450mb GPH (m): 6561 6557 6541 6523 6493 6469 6446 6416 6383 6378 6355 6321 6304 6350 6369 450mb Temp (C): -15.9 -16.6 -17.0 -17.9 -19.5 -20.4 -19.3 -20.2 -20.9 -20.6 -21.6 -26.2 -27.1 -24.1 -24.0 450mb Dewpt(C): -25.4 -22.3 -23.2 -27.9 -28.3 -36.3 -39.4 -25.3 -35.3 -22.4 -23.1 -29.7 -44.6 -48.8 -39.4 450mb RH (%): 45 62 59 42 47 24 16 64 27 86 88 73 18 9 24 450mb Dir: 222 211 194 193 189 177 190 178 211 219 226 234 281 288 277 450mb Speed(kt): 17 24 30 28 33 35 34 26 19 34 39 39 40 46 60 400mb GPH (m): 7439 7432 7414 7392 7356 7329 7310 7281 7242 7237 7208 7162 7145 7199 7220 400mb Temp (C): -21.3 -22.1 -23.0 -24.2 -25.7 -27.1 -25.7 -25.5 -26.8 -27.9 -29.2 -31.7 -31.1 -29.7 -28.5 400mb Dewpt(C): -30.6 -31.4 -30.5 -36.7 -38.8 -38.8 -31.2 -35.5 -32.0 -30.5 -30.5 -45.0 -52.2 -51.8 -41.3 400mb RH (%): 44 44 51 32 29 33 61 40 63 78 88 27 12 11 30 400mb Dir: 224 212 196 187 182 178 190 176 249 223 234 239 283 289 278 400mb Speed(kt): 15 26 33 34 34 36 33 24 15 34 42 36 49 52 75 350mb GPH (m): 8409 8399 8377 8350 8309 8274 8262 8230 8190 8182 8148 8093 8082 8138 8165 350mb Temp (C): -28.1 -29.5 -30.4 -31.6 -33.3 -34.7 -33.3 -34.4 -34.0 -34.3 -35.8 -37.6 -35.1 -35.1 -34.3 350mb Dewpt(C): -44.5 -36.9 -35.0 -44.9 -39.1 -42.5 -37.4 -46.6 -37.3 -38.1 -43.8 -57.1 -60.2 -57.0 -41.4 350mb RH (%): 20 50 65 27 57 46 68 29 73 69 45 12 7 10 50 350mb Dir: 231 204 195 187 182 172 194 181 270 241 229 248 284 291 283 350mb Speed(kt): 21 27 35 37 38 41 34 25 19 36 46 38 59 65 90 300mb GPH (m): 9494 9479 9452 9421 9374 9334 9323 9288 9252 9246 9203 9149 9149 9201 9226 300mb Temp (C): -37.6 -38.2 -39.5 -40.4 -41.6 -42.5 -43.3 -43.0 -42.3 -41.2 -42.0 -39.9 -37.8 -40.2 -41.8 300mb Dewpt(C): -45.1 -44.2 -42.8 -46.8 -45.0 -49.4 -48.0 -53.2 -45.4 -44.7 -55.4 -65.0 -64.7 -59.4 -53.5 300mb RH (%): 47 55 72 52 70 48 61 34 72 70 23 6 5 12 29 300mb Dir: 230 200 194 187 181 173 193 179 281 257 233 259 283 289 286 300mb Speed(kt): 27 31 43 43 44 44 42 25 28 41 48 45 69 72 101 250mb GPH (m): 10723 10706 10672 10635 10583 10541 10521 10494 10457 10460 10427 10394 10400 10435 10442 250mb Temp (C): -48.0 -48.1 -49.0 -50.1 -50.8 -50.5 -51.8 -50.4 -50.8 -48.1 -44.3 -39.8 -40.4 -43.4 -46.9 250mb Dewpt(C): -53.7 -54.9 -53.0 -54.5 -54.5 -57.5 -57.9 -61.4 -55.0 -55.9 -69.6 -73.5 -70.4 -67.5 -65.5 250mb RH (%): 54 47 64 62 66 46 50 28 63 42 5 2 3 6 12 250mb Dir: 232 199 189 187 181 174 194 188 281 267 247 268 284 282 280 250mb Speed(kt): 30 40 53 49 45 48 40 12 23 46 53 50 75 87 92 200mb GPH (m): 12154 12137 12102 12070 12010 11979 11962 11943 11910 11927 11923 11908 11903 11922 11927 200mb Temp (C): -59.2 -59.4 -58.2 -55.0 -56.7 -53.9 -51.7 -50.2 -49.1 -49.4 -44.1 -42.7 -43.9 -45.2 -44.0 200mb Dewpt(C): -66.7 -64.4 -65.4 -69.2 -65.9 -69.8 -70.3 -71.5 -75.1 -72.2 -81.8 -80.4 -76.2 -71.7 -75.9 200mb RH (%): 40 54 42 18 33 14 11 8 4 6 1 1 2 4 2 200mb Dir: 233 199 189 192 180 185 198 220 277 277 252 270 283 279 270 200mb Speed(kt): 34 47 54 41 41 35 26 12 24 46 53 59 74 66 73 150mb GPH (m): 13947 13937 13923 13905 13854 13837 13828 13819 13793 13808 13833 13831 13819 13840 13842 150mb Temp (C): -59.7 -58.0 -55.2 -54.5 -52.3 -50.9 -51.0 -49.9 -49.7 -50.4 -49.2 -47.3 -47.8 -46.6 -48.6 150mb Dewpt(C): -75.9 -81.1 -84.8 -81.9 -83.0 -86.2 -86.3 -85.5 -85.4 -85.8 -85.0 -83.7 -84.0 -83.2 -84.6 150mb RH (%): 13 5 2 3 2 1 1 1 1 1 1 1 1 1 1 150mb Dir: 235 211 217 206 202 198 211 232 265 274 267 274 280 279 262 150mb Speed(kt): 25 33 32 33 32 29 28 17 24 30 43 46 55 54 55 100mb GPH (m): 16501 16502 16513 16496 16469 16464 16466 16466 16440 16443 16465 16469 16459 16471 16479 100mb Temp (C): -56.3 -56.0 -55.4 -55.2 -52.8 -52.8 -51.1 -50.7 -50.0 -50.7 -51.7 -52.4 -52.9 -52.9 -52.3 100mb Dewpt(C): -90.0 -85.4 -89.4 -89.3 -87.6 -87.6 -86.4 -86.1 -74.5 -86.4 -86.8 -87.3 -87.7 -87.7 -87.2 100mb RH (%): 1 2 1 1 1 1 1 1 5 1 1 1 1 1 1 100mb Dir: 247 227 235 220 218 201 226 218 242 245 260 270 274 280 281 100mb Speed(kt): 21 21 27 26 22 26 22 21 19 25 23 31 35 32 31