Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 0Z AUG 31, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 993.1 990.7 987.6 985.8 982.9 984.3 986.0 987.4 987.5 988.0 986.2 985.3 984.1 987.5 988.7 Mean SLP (mb): 1016.8 1014.7 1011.6 1009.3 1006.2 1007.9 1010.1 1011.5 1011.4 1012.1 1010.3 1009.4 1008.2 1011.8 1013.1 2m agl Tmp (F): 71.2 62.1 57.3 75.2 83.7 68.1 58.6 57.0 59.6 58.8 57.0 59.0 55.9 52.2 51.7 2m agl Dewpt(F): 54.3 53.6 49.9 51.7 50.4 57.9 55.7 53.9 54.8 53.2 53.0 50.7 54.2 50.8 50.5 2m agl RH (%): 54 73 76 42 30 69 90 89 84 81 86 73 94 95 96 10m agl Dir: 312 7 50 78 336 297 206 189 187 206 174 189 177 216 203 10m agl Spd(kt): 6 2 4 7 1 2 4 4 4 5 7 10 11 5 5 6hr Precip (in): 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.02 0.01 0.01 0.03 0.44 0.44 0.03 AccumPrecip(in): 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.04 0.05 0.06 0.09 0.53 0.97 1.00 Sfc CAPE (J/kg): 2.6 0.0 0.0 0.0 12.2 4.6 6.5 10.3 10.6 40.4 27.8 23.7 43.2 82.7 60.6 Sfc CINH (J/kg): 0.0 0.0 0.0 0.0 -2.0 -40.1 0.0 -0.1 -1.3 -1.1 -10.1 -4.4 -0.6 0.0 -4.9 0-3km Hel(J/kg): -9.2 41.3 58.4 113.6 82.5 108.6 61.8 51.8 33.8 19.3 87.2 90.9 419.8 13.2 118.7 Precip H20 (in): 1.15 1.12 0.99 0.70 0.91 0.94 1.10 0.98 1.02 0.86 0.96 1.07 1.06 0.81 0.72 Lifted Index(C): 5.1 2.9 4.4 4.7 2.5 -0.9 0.0 3.3 5.0 2.7 3.1 6.6 3.8 3.6 0.8 700mb VV(-ub/s): -1.4 -1.1 0.2 0.7 1.0 1.4 2.3 1.3 0.6 -1.9 -0.1 -1.8 11.2 1.1 0.1 Thk1000-500mb(m)5637.0 5654.0 5661.9 5678.9 5690.7 5664.2 5624.7 5592.2 5570.9 5542.3 5524.1 5529.6 5528.4 5462.5 5433.2 Thk1000-850mb(m)1372.1 1378.8 1384.3 1395.0 1409.3 1394.3 1365.6 1354.9 1358.1 1354.7 1353.2 1351.3 1351.9 1338.1 1339.1 Thk850-700mb(m):1606.2 1613.7 1614.0 1618.4 1621.1 1617.6 1609.2 1598.3 1582.4 1572.4 1565.1 1564.6 1566.1 1549.1 1547.8 SWEAT Index: 96.5 87.7 67.2 39.2 36.2 80.3 158.9 132.1 138.4 122.5 145.8 263.9 214.9 78.7 185.7 Total Totals Idx 39.5 42.7 40.7 35.0 39.5 44.2 47.6 45.4 40.7 44.8 45.9 38.9 43.8 45.5 53.2 Frz Hgt(ft amsl) 12614 12785 12835 13228 12606 12680 12269 11649 10488 10474 7823 8016 8469 6377 6594 0WetBlbHgt(amsl) 10863 10705 10348 8892 10878 9439 10821 10359 10050 7331 7786 7940 8375 6160 6458 Equil Prs (mb): 993 991 988 986 983 541 986 987 827 783 722 697 751 707 511 Equil Hgt(amsl): 26 26 26 26 26 16803 26 26 5515 6986 9067 9933 7949 9549 17643 Hail Size(in): 0.00 0.00 0.00 0.00 0.00 0.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 Conv Wind Gust: 45.3 43.6 45.3 56.6 57.9 49.8 4.6 18.3 19.0 28.3 24.6 28.7 26.6 22.6 23.7 Showalter Index: 5.8 3.7 5.0 8.3 5.8 3.3 0.2 2.6 5.4 4.1 3.2 7.3 4.5 5.2 1.0 Cap Strength(C):-999.9 -999.9 -999.9 -999.9 -999.9 5.8 2.3 3.8 2.4 3.3 0.1 0.1 0.0 -0.7 -0.1 Storm Dir (deg): 344 311 206 205 223 227 216 214 234 240 239 239 245 274 294 Storm Spd (kts): 8 5 7 10 10 13 11 12 14 14 16 22 29 15 15 2m HeatIndex(F): 71 62 57 75 82 68 59 57 60 59 57 59 56 52 52 2m WindChill(F): 71 62 57 75 84 68 59 57 60 59 57 59 56 52 52 1000mb GPH (m): 144 124 98 80 54 68 85 96 97 102 87 79 69 98 108 950mb GPH (m): 583 562 535 523 504 510 517 527 531 535 518 512 499 525 535 950mb Temp (C): 15.8 16.2 17.7 19.5 25.0 19.9 11.7 10.7 12.2 12.1 11.4 11.8 11.1 8.3 8.6 950mb Dewpt(C): 10.7 11.0 9.8 9.2 8.4 14.0 11.6 10.6 11.3 11.0 11.2 9.4 10.8 8.1 8.3 950mb RH (%): 71 71 59 50 33 68 99 99 94 93 99 85 98 98 98 950mb Dir: 323 18 82 82 0 328 207 197 198 214 188 191 182 224 221 950mb Speed(kt): 7 9 12 11 1 8 8 9 9 12 14 19 23 10 12 900mb GPH (m): 1039 1020 996 987 974 975 970 977 982 985 968 961 949 970 981 900mb Temp (C): 11.6 14.4 17.0 18.8 20.4 18.7 12.3 9.8 9.8 9.3 8.7 8.0 8.7 5.9 6.3 900mb Dewpt(C): 9.8 8.8 6.4 0.7 7.1 7.9 12.3 9.4 9.4 7.2 8.5 7.7 8.4 4.7 6.1 900mb RH (%): 88 69 49 29 41 48 100 97 97 86 99 98 98 92 98 900mb Dir: 331 65 90 118 40 212 214 205 243 223 218 196 200 259 259 900mb Speed(kt): 7 6 12 15 1 6 6 8 12 17 23 30 41 8 18 850mb GPH (m): 1516 1503 1482 1475 1463 1462 1451 1451 1455 1457 1440 1430 1421 1436 1448 850mb Temp (C): 11.2 14.5 15.5 16.8 17.1 15.7 11.7 10.3 6.9 5.6 6.3 5.1 5.8 3.4 3.4 850mb Dewpt(C): 5.1 5.7 3.0 -5.4 -0.7 3.0 9.8 6.5 6.7 5.4 6.1 4.9 5.5 1.6 3.1 850mb RH (%): 65 55 42 21 29 42 88 77 99 98 99 98 98 88 98 850mb Dir: 34 92 111 140 158 191 250 228 253 223 219 204 217 284 263 850mb Speed(kt): 8 2 7 8 5 8 6 9 13 16 25 40 48 12 18 800mb GPH (m): 2022 2014 1993 1987 1976 1974 1958 1955 1952 1951 1935 1925 1915 1925 1937 800mb Temp (C): 10.8 12.0 12.2 13.6 14.1 13.6 11.2 9.1 5.4 3.1 3.4 3.3 3.0 0.1 0.5 800mb Dewpt(C): 4.9 3.7 3.1 -2.9 -6.2 -2.9 -1.2 2.5 1.6 2.5 3.1 3.1 2.8 -0.6 0.0 800mb RH (%): 66 56 53 31 23 31 42 63 76 96 98 98 98 95 97 800mb Dir: 22 60 122 169 189 193 215 230 231 225 217 205 224 278 257 800mb Speed(kt): 10 3 5 10 9 12 11 11 16 16 23 38 53 17 19 750mb GPH (m): 2557 2551 2530 2526 2516 2513 2493 2487 2479 2472 2455 2445 2436 2440 2452 750mb Temp (C): 7.7 8.5 8.6 9.5 9.4 8.9 8.5 6.3 4.3 2.7 -0.5 0.0 0.8 -2.3 -2.8 750mb Dewpt(C): 1.0 -0.5 -2.0 -8.8 4.6 -0.6 -2.4 0.4 3.0 -10.1 -0.7 -0.3 0.5 -3.1 -3.8 750mb RH (%): 62 52 47 26 71 51 46 65 92 38 99 98 98 94 92 750mb Dir: 4 9 149 184 193 200 189 189 216 229 223 205 233 267 260 750mb Speed(kt): 10 2 5 15 11 16 9 8 19 19 19 36 44 21 21 700mb GPH (m): 3122 3117 3096 3093 3084 3080 3060 3050 3037 3029 3005 2995 2987 2985 2995 700mb Temp (C): 4.2 4.8 4.9 5.6 5.3 5.7 5.1 3.3 0.8 1.1 -1.8 -3.0 -2.3 -4.8 -5.9 700mb Dewpt(C): -2.0 -3.4 -4.4 -23.2 -1.8 -15.8 -2.4 -2.0 -0.3 -9.5 -5.3 -3.8 -2.6 -5.3 -8.8 700mb RH (%): 64 55 50 11 60 20 58 68 92 45 77 94 98 96 80 700mb Dir: 342 224 187 185 189 204 160 175 207 214 218 205 222 253 266 700mb Speed(kt): 7 3 6 16 17 22 16 13 20 21 22 35 27 24 23 650mb GPH (m): 3721 3717 3697 3694 3684 3681 3660 3646 3630 3620 3594 3580 3573 3566 3572 650mb Temp (C): 0.7 1.1 1.4 2.0 1.0 1.6 0.6 -0.6 -2.1 -3.0 -3.4 -5.3 -4.9 -7.4 -9.6 650mb Dewpt(C): -5.7 -6.0 -6.6 -16.7 -7.0 -9.5 -4.7 -5.9 -9.1 -11.6 -11.9 -6.3 -5.2 -8.0 -19.2 650mb RH (%): 62 59 55 23 55 44 68 68 59 51 52 93 98 95 46 650mb Dir: 306 243 208 186 193 190 166 172 200 207 210 204 207 245 270 650mb Speed(kt): 8 5 9 13 22 27 20 20 22 22 25 31 33 28 24 600mb GPH (m): 4359 4356 4336 4335 4323 4319 4296 4281 4261 4249 4221 4206 4200 4185 4185 600mb Temp (C): -2.9 -2.9 -2.7 -1.8 -3.0 -3.9 -4.2 -4.4 -5.6 -6.9 -7.8 -7.4 -7.4 -10.6 -13.3 600mb Dewpt(C): -9.6 -9.1 -8.8 -10.9 -13.8 -10.5 -9.1 -13.1 -21.3 -20.5 -15.3 -8.1 -7.7 -11.4 -32.3 600mb RH (%): 60 63 63 50 43 60 69 51 28 33 55 94 98 94 19 600mb Dir: 284 247 217 201 196 188 177 174 194 203 206 212 220 238 275 600mb Speed(kt): 13 8 12 14 24 31 25 26 27 22 26 27 43 30 25 550mb GPH (m): 5044 5040 5022 5022 5007 5000 4977 4960 4938 4922 4891 4881 4873 4849 4839 550mb Temp (C): -6.9 -6.7 -6.3 -6.4 -6.7 -8.5 -8.3 -9.2 -9.1 -11.2 -12.9 -10.2 -11.1 -15.5 -18.8 550mb Dewpt(C): -14.1 -12.2 -12.6 -13.9 -15.6 -12.7 -14.6 -22.5 -27.8 -22.9 -21.5 -10.9 -11.8 -17.1 -28.5 550mb RH (%): 57 65 61 55 49 72 61 33 21 38 49 94 94 87 43 550mb Dir: 268 256 229 207 196 191 184 175 189 198 199 235 219 230 277 550mb Speed(kt): 16 11 14 18 24 31 28 33 31 24 28 28 47 31 27 500mb GPH (m): 5781 5778 5760 5759 5744 5732 5710 5689 5668 5644 5611 5609 5597 5561 5542 500mb Temp (C): -11.6 -11.2 -11.1 -11.8 -11.5 -12.7 -13.1 -14.3 -13.6 -16.9 -16.7 -14.5 -16.3 -20.2 -23.3 500mb Dewpt(C): -16.9 -16.9 -18.6 -16.3 -18.0 -20.1 -20.2 -36.4 -39.1 -21.9 -24.6 -15.8 -19.7 -31.0 -39.3 500mb RH (%): 65 63 54 70 59 55 56 14 10 66 51 90 75 38 23 500mb Dir: 276 258 235 210 196 194 187 178 186 189 199 238 216 225 272 500mb Speed(kt): 20 15 18 23 26 28 29 36 32 26 23 29 54 35 28 450mb GPH (m): 6579 6579 6560 6558 6544 6528 6502 6478 6459 6431 6397 6399 6381 6333 6306 450mb Temp (C): -17.2 -16.3 -16.2 -16.9 -16.8 -18.0 -19.2 -20.4 -19.7 -19.6 -21.1 -19.6 -22.1 -25.2 -27.6 450mb Dewpt(C): -21.9 -21.7 -25.6 -23.6 -25.0 -28.2 -26.7 -37.3 -35.1 -26.3 -30.4 -21.7 -29.5 -50.5 -48.0 450mb RH (%): 67 63 45 57 50 41 52 21 25 55 44 84 52 8 14 450mb Dir: 280 266 230 210 196 197 189 177 184 178 214 230 216 226 267 450mb Speed(kt): 26 18 19 25 31 28 32 37 33 26 16 29 49 38 31 400mb GPH (m): 7453 7456 7437 7432 7417 7397 7366 7337 7322 7294 7254 7263 7235 7176 7143 400mb Temp (C): -22.1 -21.2 -21.6 -22.2 -22.8 -24.1 -25.6 -27.0 -25.8 -26.8 -27.8 -25.9 -28.6 -31.4 -32.8 400mb Dewpt(C): -28.8 -27.6 -34.8 -30.1 -31.2 -37.4 -39.3 -35.9 -31.4 -36.7 -36.7 -28.5 -45.0 -55.6 -50.7 400mb RH (%): 55 57 30 50 47 29 28 44 60 40 43 79 20 8 16 400mb Dir: 286 271 226 211 199 190 185 177 183 181 259 234 220 230 263 400mb Speed(kt): 30 23 16 26 34 34 34 38 35 27 11 32 52 38 32 350mb GPH (m): 8422 8428 8407 8398 8381 8355 8320 8283 8275 8239 8200 8214 8176 8108 8074 350mb Temp (C): -28.6 -28.0 -28.2 -29.4 -30.3 -31.6 -32.7 -34.5 -32.5 -34.7 -33.8 -33.7 -35.6 -38.1 -36.1 350mb Dewpt(C): -34.0 -36.3 -42.8 -36.6 -34.4 -44.7 -38.0 -44.4 -35.7 -52.5 -42.2 -36.9 -51.6 -58.2 -60.7 350mb RH (%): 61 46 25 50 69 28 61 37 74 16 44 73 19 12 7 350mb Dir: 282 270 235 207 194 189 181 175 180 184 303 237 213 235 267 350mb Speed(kt): 34 26 21 26 37 37 37 40 32 35 23 32 50 40 39 300mb GPH (m): 9506 9515 9492 9478 9457 9426 9387 9343 9341 9297 9264 9272 9230 9157 9139 300mb Temp (C): -37.3 -36.6 -37.3 -38.1 -39.1 -40.3 -41.0 -42.8 -42.2 -42.8 -41.8 -43.7 -43.4 -42.2 -38.0 300mb Dewpt(C): -44.3 -48.5 -44.3 -42.8 -43.7 -45.6 -44.6 -50.9 -45.6 -54.6 -45.2 -47.2 -54.6 -64.8 -70.5 300mb RH (%): 49 30 49 63 63 58 70 42 71 28 70 69 30 8 2 300mb Dir: 284 273 229 207 193 189 182 176 187 179 308 237 220 235 270 300mb Speed(kt): 40 27 27 30 43 44 44 43 47 34 31 34 47 38 50 250mb GPH (m): 10739 10750 10723 10707 10680 10643 10598 10548 10542 10506 10473 10470 10440 10386 10388 250mb Temp (C): -47.3 -47.2 -47.8 -47.9 -48.9 -50.2 -50.5 -50.4 -52.4 -49.7 -50.9 -52.2 -48.0 -42.1 -40.1 250mb Dewpt(C): -52.7 -55.7 -53.0 -56.1 -54.1 -53.8 -54.9 -59.3 -56.6 -61.5 -55.9 -56.2 -64.5 -71.5 -72.7 250mb RH (%): 56 39 56 40 56 67 61 36 62 26 57 64 15 3 2 250mb Dir: 291 275 225 208 187 188 179 179 192 182 315 243 232 243 272 250mb Speed(kt): 48 31 33 38 51 51 47 45 47 23 23 37 51 38 58 200mb GPH (m): 12174 12186 12158 12140 12109 12074 12031 11989 11974 11952 11916 11913 11906 11891 11893 200mb Temp (C): -58.3 -58.4 -58.4 -58.7 -58.6 -55.9 -55.1 -53.1 -53.0 -52.1 -51.4 -50.3 -48.3 -44.6 -44.5 200mb Dewpt(C): -65.1 -64.6 -65.8 -65.5 -65.9 -68.5 -68.2 -72.6 -72.1 -71.5 -71.8 -73.9 -77.1 -78.3 -81.6 200mb RH (%): 44 47 41 44 41 22 21 9 10 9 8 6 3 2 1 200mb Dir: 291 278 233 199 187 195 183 189 197 202 273 249 236 259 277 200mb Speed(kt): 53 38 36 44 56 41 41 38 31 15 21 34 46 45 53 150mb GPH (m): 13973 13979 13951 13940 13926 13908 13872 13850 13835 13819 13789 13793 13801 13803 13803 150mb Temp (C): -58.1 -60.1 -60.5 -57.9 -55.2 -54.5 -53.7 -50.3 -51.2 -50.6 -50.3 -49.8 -48.2 -47.7 -47.8 150mb Dewpt(C): -77.3 -75.6 -76.0 -81.1 -82.7 -81.9 -81.2 -85.8 -86.4 -86.0 -85.8 -85.4 -100.8 -83.9 -84.0 150mb RH (%): 8 13 13 5 3 3 3 1 1 1 1 1 0 1 1 150mb Dir: 271 272 239 210 212 211 191 200 208 222 249 255 247 264 272 150mb Speed(kt): 36 28 29 32 32 31 28 30 28 21 24 31 36 36 42 100mb GPH (m): 16534 16541 16506 16504 16513 16502 16474 16472 16472 16466 16434 16433 16452 16455 16447 100mb Temp (C): -56.5 -55.9 -55.5 -55.9 -55.4 -54.3 -53.8 -53.4 -51.7 -50.3 -50.6 -50.5 -50.9 -50.6 -51.4 100mb Dewpt(C): -90.2 -89.7 -89.5 -85.3 -89.4 -88.6 -88.3 -88.0 -86.8 -106.7 -74.9 -85.6 -86.2 -96.5 -86.1 100mb RH (%): 1 1 1 2 1 1 1 1 1 0 5 1 1 0 1 100mb Dir: 258 242 247 214 237 210 215 204 217 220 235 236 257 246 278 100mb Speed(kt): 21 16 18 18 28 25 25 23 25 25 23 25 22 29 29