Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z AUG 28, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 993.7 993.8 991.2 992.6 993.5 995.3 994.4 995.5 995.9 997.0 995.1 993.8 990.8 988.9 986.6 Mean SLP (mb): 1018.0 1017.8 1014.9 1016.9 1018.0 1019.7 1018.5 1019.9 1020.5 1021.4 1019.2 1018.1 1015.2 1012.7 1010.1 2m agl Tmp (F): 56.8 66.5 71.6 57.4 51.8 57.1 62.9 54.4 50.8 55.6 64.8 56.5 52.1 68.9 75.4 2m agl Dewpt(F): 52.3 54.4 54.4 51.5 50.6 51.7 48.1 46.7 49.2 49.3 48.0 47.4 46.6 49.0 54.0 2m agl RH (%): 85 64 53 80 96 82 58 75 94 79 54 71 81 48 46 10m agl Dir: 2 273 297 304 250 227 295 322 281 213 323 1 52 18 305 10m agl Spd(kt): 1 4 8 5 2 5 7 2 1 3 5 2 3 3 7 6hr Precip (in): 0.00 0.00 0.00 0.00 0.00 0.02 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 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 Sfc CAPE (J/kg): 0.0 8.8 8.2 1.2 4.3 88.7 50.9 0.0 3.9 19.2 0.0 0.0 0.0 0.0 0.0 Sfc CINH (J/kg): -0.1 0.0 0.0 0.0 -2.1 0.0 0.0 0.0 0.0 -0.1 0.0 0.0 -0.2 0.0 0.0 0-3km Hel(J/kg): 62.5 39.1 82.6 71.4 51.1 54.9 58.2 62.8 67.1 88.7 31.9 57.9 69.4 82.6 135.0 Precip H20 (in): 0.89 0.87 0.83 0.72 0.74 0.66 0.74 0.64 0.70 0.86 1.02 1.05 0.99 0.92 0.72 Lifted Index(C): 5.1 5.8 4.5 7.6 7.7 4.6 2.0 5.4 11.0 11.4 9.3 4.4 4.7 4.9 2.8 700mb VV(-ub/s): -0.4 0.5 0.6 -1.3 0.8 -1.4 -0.3 -3.5 -0.8 0.2 -0.8 -0.9 -0.2 0.2 0.9 Thk1000-500mb(m)5603.5 5601.8 5619.2 5585.6 5523.3 5493.8 5494.9 5507.3 5537.8 5562.6 5595.0 5607.3 5617.2 5633.2 5648.8 Thk1000-850mb(m)1359.6 1362.6 1375.6 1357.8 1343.0 1341.4 1351.9 1343.7 1336.1 1338.6 1357.1 1361.3 1365.5 1376.8 1388.5 Thk850-700mb(m):1595.3 1593.0 1590.7 1580.6 1561.5 1554.5 1557.5 1565.5 1571.8 1580.3 1592.8 1598.8 1601.5 1604.6 1605.9 SWEAT Index: 127.2 93.4 81.0 122.1 107.5 93.5 96.6 69.0 91.6 45.6 53.0 131.2 108.0 107.9 60.7 Total Totals Idx 41.6 38.1 35.5 37.8 37.5 42.2 48.6 43.0 34.3 30.0 26.0 42.7 42.3 42.3 38.5 Frz Hgt(ft amsl) 12279 12203 12165 11589 7994 7172 7559 9578 10421 11528 11870 11983 12169 12167 12439 0WetBlbHgt(amsl) 8480 8388 8331 7507 7304 6296 6835 6422 7090 5857 10822 10554 10600 10518 7678 Equil Prs (mb): 994 994 991 993 993 736 730 995 996 997 995 994 991 989 987 Equil Hgt(amsl): 26 26 26 26 26 8750 8970 26 26 26 26 26 26 26 26 Hail Size(in): 0.03 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 0.16 Conv Wind Gust: 41.2 33.7 39.9 35.8 25.5 24.9 37.8 27.7 18.3 24.4 43.4 43.4 42.6 48.2 55.4 Showalter Index: 4.7 7.1 8.6 7.1 8.7 6.8 3.2 6.3 10.6 13.1 14.2 3.7 4.1 4.1 6.7 Cap Strength(C):-999.9 -999.9 0.7 -999.9 -999.9 0.0 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 Storm Dir (deg): 276 278 287 287 289 305 318 356 345 343 327 317 272 237 247 Storm Spd (kts): 11 9 11 14 19 16 14 12 13 12 11 9 8 10 13 2m HeatIndex(F): 57 67 72 57 52 57 63 54 51 56 65 57 52 69 75 2m WindChill(F): 57 67 72 57 52 57 63 54 51 56 65 57 52 69 75 1000mb GPH (m): 150 151 128 141 149 164 156 166 169 178 162 151 126 108 87 950mb GPH (m): 582 587 569 573 575 593 590 595 594 605 597 583 556 546 532 950mb Temp (C): 12.9 13.8 17.0 12.2 9.4 8.9 12.3 9.8 7.9 8.5 13.1 12.3 13.2 15.6 19.8 950mb Dewpt(C): 10.4 10.9 11.0 8.8 8.6 8.5 7.6 7.9 7.7 8.3 7.6 7.3 6.2 7.6 10.8 950mb RH (%): 85 82 67 79 95 97 73 88 98 99 69 71 62 58 55 950mb Dir: 341 278 300 320 300 235 294 313 327 227 325 4 19 37 308 950mb Speed(kt): 5 4 10 14 7 7 9 9 7 4 6 7 4 4 8 900mb GPH (m): 1034 1040 1027 1025 1023 1039 1040 1042 1039 1051 1048 1035 1011 1004 994 900mb Temp (C): 10.5 9.9 12.6 10.6 7.5 6.4 8.0 7.0 6.1 6.2 8.6 11.8 13.5 14.8 15.2 900mb Dewpt(C): 9.2 8.2 10.0 6.6 7.1 5.1 6.5 4.3 5.3 5.3 6.7 -1.0 7.3 3.4 9.9 900mb RH (%): 91 89 84 76 97 91 90 83 95 94 87 41 65 45 70 900mb Dir: 338 330 304 305 308 284 294 309 318 312 331 354 29 74 315 900mb Speed(kt): 5 7 10 8 13 10 9 9 11 7 5 8 5 8 8 850mb GPH (m): 1510 1514 1503 1499 1492 1506 1508 1510 1505 1517 1519 1513 1492 1485 1476 850mb Temp (C): 9.3 8.7 8.9 7.8 5.0 3.7 4.3 4.2 3.6 4.1 9.0 10.9 12.0 12.6 13.4 850mb Dewpt(C): 6.3 4.4 3.5 5.4 2.3 1.8 3.0 1.2 2.3 -0.3 -7.7 7.2 6.1 5.6 1.2 850mb RH (%): 81 74 68 85 83 87 91 81 91 73 29 77 67 62 43 850mb Dir: 280 318 304 261 291 283 292 304 317 323 321 346 29 82 171 850mb Speed(kt): 7 8 7 13 15 14 13 12 15 11 11 9 3 4 4 800mb GPH (m): 2012 2015 2004 1997 1984 1995 1999 2001 1997 2012 2020 2017 1997 1991 1983 800mb Temp (C): 8.6 8.6 8.0 5.4 2.0 0.6 1.5 2.3 4.3 6.3 8.2 9.0 9.5 10.3 10.9 800mb Dewpt(C): -2.9 -2.0 -0.7 -0.8 -0.2 -1.6 -0.5 -3.2 -3.4 -18.6 -2.3 3.0 3.2 0.0 -7.5 800mb RH (%): 44 47 54 64 85 85 87 67 57 15 47 66 64 48 26 800mb Dir: 300 282 254 253 281 281 286 300 309 318 329 331 236 156 197 800mb Speed(kt): 6 7 8 17 18 15 14 12 14 15 12 6 2 5 9 750mb GPH (m): 2543 2545 2534 2522 2503 2511 2516 2522 2521 2538 2551 2549 2529 2525 2517 750mb Temp (C): 6.4 5.6 5.1 3.6 -0.3 -1.1 -1.0 1.9 2.9 4.8 5.7 6.4 6.8 7.6 8.1 750mb Dewpt(C): -7.8 -6.7 -5.7 -10.4 -1.8 -8.2 -4.6 -7.5 -7.2 -25.1 3.7 0.4 0.6 -4.4 -22.1 750mb RH (%): 35 41 46 35 90 58 76 49 47 9 86 65 65 42 10 750mb Dir: 271 256 243 257 267 292 287 321 312 311 334 274 235 185 203 750mb Speed(kt): 6 7 13 19 22 18 15 16 17 17 13 7 8 8 14 700mb GPH (m): 3105 3107 3094 3080 3054 3060 3065 3075 3077 3097 3112 3112 3093 3089 3081 700mb Temp (C): 3.6 3.0 2.7 2.3 -0.7 -1.8 -1.8 -0.7 0.4 2.3 2.9 3.4 3.9 3.8 4.8 700mb Dewpt(C): -11.4 -8.7 -10.8 -16.1 -27.1 -23.2 -18.2 -15.9 -11.3 -13.0 -1.1 -2.0 -2.1 -2.8 -19.9 700mb RH (%): 32 42 36 24 12 18 27 31 41 31 75 67 65 62 15 700mb Dir: 246 237 238 251 263 288 295 325 310 311 301 263 231 203 206 700mb Speed(kt): 13 12 17 19 28 24 22 17 19 22 13 12 13 11 18 650mb GPH (m): 3703 3703 3690 3675 3642 3646 3651 3663 3668 3693 3709 3709 3691 3688 3681 650mb Temp (C): 0.2 0.1 0.1 -0.7 -3.1 -4.7 -5.4 -4.3 -1.9 -1.0 -0.5 -0.4 0.1 0.1 0.7 650mb Dewpt(C): -11.5 -13.1 -15.8 -12.3 -36.2 -26.7 -17.4 -21.5 -21.1 -1.2 -3.5 -6.8 -6.6 -4.4 -10.4 650mb RH (%): 41 36 29 41 6 17 38 25 22 98 80 62 60 72 43 650mb Dir: 242 231 242 246 260 281 291 329 310 325 286 266 234 209 209 650mb Speed(kt): 21 17 19 23 34 28 25 20 22 24 19 12 15 15 21 600mb GPH (m): 4339 4339 4327 4309 4271 4271 4273 4288 4300 4327 4344 4344 4328 4325 4318 600mb Temp (C): -3.6 -3.9 -2.8 -3.7 -6.5 -8.0 -9.9 -8.5 -4.8 -4.2 -4.8 -4.6 -3.9 -3.8 -3.1 600mb Dewpt(C): -14.3 -15.2 -23.9 -25.7 -24.4 -30.7 -22.6 -29.8 -34.2 -7.3 -6.8 -8.5 -8.4 -7.0 -25.7 600mb RH (%): 43 41 18 17 23 15 35 17 8 79 86 74 71 78 16 600mb Dir: 239 231 245 243 253 277 291 330 311 328 278 266 236 211 211 600mb Speed(kt): 27 23 19 27 40 33 27 24 25 27 22 15 19 22 26 550mb GPH (m): 5021 5020 5011 4992 4946 4940 4938 4956 4978 5008 5024 5024 5009 5006 5001 550mb Temp (C): -7.8 -8.0 -6.8 -6.8 -10.6 -13.0 -14.6 -13.3 -9.3 -8.6 -8.6 -8.1 -8.2 -7.8 -7.1 550mb Dewpt(C): -18.4 -22.2 -24.5 -51.7 -19.6 -26.2 -19.3 -27.8 -31.7 -11.8 -11.6 -11.3 -13.5 -16.6 -25.3 550mb RH (%): 43 31 23 2 48 33 68 29 15 78 79 78 66 49 22 550mb Dir: 234 234 248 246 246 270 287 333 315 309 277 273 238 220 213 550mb Speed(kt): 34 25 22 28 45 40 31 28 29 25 25 20 24 28 33 500mb GPH (m): 5754 5753 5747 5727 5672 5658 5651 5673 5707 5741 5757 5759 5743 5741 5736 500mb Temp (C): -13.0 -12.5 -11.5 -12.3 -15.1 -18.4 -20.6 -18.8 -14.1 -13.1 -12.3 -12.3 -12.1 -12.0 -12.0 500mb Dewpt(C): -26.2 -33.1 -31.8 -42.5 -23.9 -31.4 -23.5 -38.9 -32.7 -17.3 -15.4 -15.3 -24.3 -18.6 -21.4 500mb RH (%): 33 17 17 7 48 32 78 16 20 71 78 78 36 59 46 500mb Dir: 231 241 250 245 241 269 279 341 323 299 279 270 243 224 215 500mb Speed(kt): 37 24 25 30 51 45 34 31 33 23 31 27 29 32 37 450mb GPH (m): 6549 6548 6544 6523 6461 6435 6422 6450 6498 6536 6556 6557 6543 6541 6535 450mb Temp (C): -17.8 -18.1 -17.7 -18.0 -20.0 -24.3 -26.5 -24.3 -18.7 -17.7 -17.1 -17.0 -15.7 -16.0 -16.4 450mb Dewpt(C): -34.5 -28.6 -40.7 -48.1 -27.8 -37.9 -30.7 -41.5 -33.7 -20.5 -20.4 -21.2 -41.8 -29.7 -27.6 450mb RH (%): 23 40 12 6 51 28 69 20 26 79 76 70 9 31 38 450mb Dir: 229 243 250 245 237 264 270 348 334 302 280 268 251 223 218 450mb Speed(kt): 36 28 28 31 59 50 39 37 44 30 32 31 34 33 41 400mb GPH (m): 7418 7416 7413 7390 7324 7280 7259 7296 7366 7408 7429 7431 7420 7416 7409 400mb Temp (C): -24.3 -24.6 -24.3 -24.6 -25.3 -31.2 -33.5 -30.4 -24.2 -23.3 -22.6 -22.1 -22.4 -22.6 -23.3 400mb Dewpt(C): -35.3 -30.3 -44.0 -53.8 -38.0 -45.6 -39.5 -45.8 -32.7 -26.0 -26.5 -26.5 -34.0 -32.0 -32.2 400mb RH (%): 37 60 15 5 31 24 56 22 46 79 71 68 35 43 45 400mb Dir: 229 241 247 242 238 257 266 352 333 301 279 270 255 222 217 400mb Speed(kt): 35 31 33 37 65 54 39 48 52 35 33 37 35 36 44 350mb GPH (m): 8374 8372 8372 8347 8280 8214 8184 8234 8325 8371 8396 8401 8386 8382 8370 350mb Temp (C): -32.0 -32.5 -31.3 -31.4 -31.3 -36.1 -38.4 -34.5 -30.7 -30.3 -28.6 -28.5 -28.4 -30.0 -30.5 350mb Dewpt(C): -39.6 -38.7 -47.1 -55.3 -48.1 -56.1 -57.2 -56.9 -36.0 -33.4 -33.1 -34.0 -48.8 -42.3 -43.4 350mb RH (%): 48 55 21 9 19 12 13 9 61 75 66 60 13 30 28 350mb Dir: 228 242 242 239 242 249 269 351 332 297 281 265 260 227 214 350mb Speed(kt): 40 31 41 41 71 67 38 76 58 41 37 40 36 39 48 300mb GPH (m): 9443 9440 9443 9418 9354 9273 9240 9302 9401 9451 9479 9486 9469 9461 9444 300mb Temp (C): -40.8 -40.8 -40.1 -40.0 -39.6 -40.7 -39.7 -39.5 -38.9 -37.6 -37.2 -37.3 -38.1 -39.0 -40.0 300mb Dewpt(C): -45.9 -49.5 -46.2 -55.6 -53.5 -59.8 -69.1 -58.4 -45.5 -40.9 -43.4 -42.8 -45.1 -51.3 -47.8 300mb RH (%): 59 40 53 19 23 12 4 13 51 72 53 58 49 28 45 300mb Dir: 227 242 241 238 243 238 281 349 334 299 283 266 253 221 212 300mb Speed(kt): 46 32 49 44 73 83 34 94 67 45 46 43 42 42 56 250mb GPH (m): 10659 10658 10661 10637 10574 10500 10479 10529 10626 10680 10711 10718 10696 10683 10662 250mb Temp (C): -48.5 -48.6 -49.1 -48.8 -48.3 -44.5 -41.9 -46.0 -48.7 -47.9 -47.6 -47.3 -48.2 -48.5 -49.7 250mb Dewpt(C): -58.2 -59.5 -55.6 -60.6 -59.0 -66.6 -72.0 -65.4 -58.1 -54.5 -54.7 -52.4 -53.5 -61.0 -58.1 250mb RH (%): 34 29 49 26 30 8 3 11 35 49 46 58 56 24 39 250mb Dir: 227 240 237 235 240 239 287 345 338 303 287 271 241 220 210 250mb Speed(kt): 53 42 54 51 68 69 36 80 78 52 49 48 50 49 66 200mb GPH (m): 12107 12102 12103 12080 12025 11986 11984 12005 12057 12113 12148 12155 12132 12116 12090 200mb Temp (C): -53.9 -54.4 -53.6 -54.0 -51.7 -46.2 -43.8 -46.4 -55.9 -57.2 -57.5 -57.3 -57.7 -58.1 -57.3 200mb Dewpt(C): -67.3 -67.4 -68.8 -69.6 -71.3 -78.4 -81.3 -77.8 -67.2 -64.3 -62.2 -63.5 -64.4 -65.4 -68.6 200mb RH (%): 20 21 16 15 9 2 1 2 25 43 57 47 45 41 25 200mb Dir: 231 236 234 234 247 255 288 327 335 305 289 272 241 218 210 200mb Speed(kt): 56 51 58 62 62 46 26 39 63 55 55 55 55 59 56 150mb GPH (m): 13960 13954 13960 13943 13912 13889 13893 13900 13905 13937 13961 13958 13932 13922 13906 150mb Temp (C): -52.8 -52.4 -51.8 -50.9 -48.8 -48.6 -47.2 -49.4 -53.5 -55.6 -55.8 -58.5 -59.5 -57.5 -56.4 150mb Dewpt(C): -83.0 -82.5 -86.0 -86.2 -84.8 -84.6 -96.8 -85.2 -83.0 -80.4 -85.3 -76.2 -76.7 -79.2 -79.5 150mb RH (%): 2 2 1 1 1 1 0 1 2 4 2 10 11 6 5 150mb Dir: 236 236 244 242 246 244 272 293 307 281 268 259 247 221 223 150mb Speed(kt): 44 44 46 46 42 36 26 21 32 28 34 45 38 36 39 100mb GPH (m): 16567 16560 16576 16565 16545 16535 16547 16538 16515 16521 16529 16525 16494 16496 16491 100mb Temp (C): -54.0 -54.0 -52.7 -53.4 -52.7 -52.1 -51.4 -51.5 -52.7 -54.5 -55.5 -55.1 -55.9 -55.7 -54.8 100mb Dewpt(C): -88.4 -88.4 -82.9 -88.0 -87.5 -82.5 -86.6 -82.1 -87.5 -84.3 -89.5 -84.8 -89.7 -89.6 -89.0 100mb RH (%): 1 1 2 1 1 2 1 2 1 2 1 2 1 1 1 100mb Dir: 226 247 235 250 243 238 232 253 260 268 252 259 245 219 239 100mb Speed(kt): 26 28 26 27 24 21 21 18 18 16 18 24 17 24 23