Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z AUG 20, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 989.8 991.1 988.8 989.7 989.7 990.6 989.9 991.7 993.7 996.1 996.0 997.3 998.0 999.6 997.3 Mean SLP (mb): 1013.8 1014.7 1011.9 1013.2 1013.5 1014.2 1013.3 1015.6 1018.1 1020.6 1020.1 1021.5 1022.3 1023.9 1021.2 2m agl Tmp (F): 59.5 73.3 85.4 73.3 65.5 73.2 75.8 68.7 56.3 55.4 63.9 60.9 57.9 59.7 68.9 2m agl Dewpt(F): 56.6 59.4 61.7 62.4 61.2 63.4 63.3 60.0 52.1 50.7 51.8 54.1 55.9 57.7 56.2 2m agl RH (%): 90 61 43 68 86 70 64 73 85 84 64 78 93 93 63 10m agl Dir: 102 230 312 343 132 244 261 230 192 192 222 218 207 275 333 10m agl Spd(kt): 2 3 5 1 1 3 3 3 5 4 6 6 4 3 6 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 0.00 0.02 0.05 0.00 AccumPrecip(in): 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.07 0.07 Sfc CAPE (J/kg): 0.0 0.7 134.5 24.5 9.0 34.1 53.3 0.0 1.5 11.7 16.4 23.4 28.1 51.5 7.6 Sfc CINH (J/kg): 0.0 -10.9 -285.0 -82.1 -55.7 -119.7 -480.8 0.0 -0.3 0.0 -0.5 -0.2 -0.4 -0.1 0.0 0-3km Hel(J/kg): 44.6 50.1 94.4 116.2 66.2 175.2 87.9 66.5 69.3 37.5 79.3 88.5 61.1 9.8 -3.5 Precip H20 (in): 0.74 0.81 0.82 0.80 1.11 1.22 1.36 1.48 1.01 0.73 0.84 0.92 0.93 1.02 0.98 Lifted Index(C): 2.9 3.3 -0.7 -0.5 -0.7 -0.1 -0.6 -0.5 3.7 5.8 3.8 6.2 6.7 6.8 5.6 700mb VV(-ub/s): 2.3 -1.1 -0.9 -0.6 3.5 1.7 -15.8 -22.2 2.7 0.0 -0.5 -2.7 -3.1 -0.5 -1.9 Thk1000-500mb(m)5722.2 5725.5 5756.3 5756.1 5748.1 5745.7 5736.1 5705.4 5650.7 5600.3 5586.8 5598.7 5605.1 5608.8 5638.4 Thk1000-850mb(m)1393.4 1399.2 1419.5 1415.4 1407.2 1403.8 1407.6 1395.0 1364.5 1351.4 1356.8 1355.0 1352.8 1353.7 1369.5 Thk850-700mb(m):1637.9 1639.9 1643.9 1648.1 1649.4 1649.3 1648.3 1634.4 1621.1 1604.7 1600.5 1599.8 1599.0 1598.0 1608.7 SWEAT Index: 27.0 34.5 43.4 45.3 46.7 62.1 87.5 174.5 116.1 115.8 159.7 130.7 129.5 114.2 93.9 Total Totals Idx 40.3 37.3 36.9 34.5 40.0 40.8 43.4 48.4 42.2 42.3 42.5 38.0 35.6 36.5 38.1 Frz Hgt(ft amsl) 14862 14598 14894 14611 14622 14599 13744 13704 13260 12280 11764 11940 12391 12884 12969 0WetBlbHgt(amsl) 9997 10609 10968 11386 13098 13158 12904 13278 12261 9778 9218 9235 9621 10205 10470 Equil Prs (mb): 990 991 253 990 990 307 300 992 994 996 996 848 878 846 997 Equil Hgt(amsl): 26 26 35365 26 26 30999 31484 26 26 26 26 5108 4177 5219 26 Hail Size(in): 0.20 0.23 0.05 0.00 0.03 0.02 0.12 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.21 Conv Wind Gust: 56.4 55.7 61.1 59.3 56.3 55.8 57.1 50.8 50.9 45.8 29.9 26.7 22.1 10.6 44.9 Showalter Index: 5.1 6.6 6.8 7.8 5.1 4.7 3.1 -0.2 4.3 4.7 5.2 7.2 8.0 7.7 6.7 Cap Strength(C):-999.9 -999.9 0.0 -999.9 -999.9 5.9 8.0 -999.9 -999.9 7.5 5.3 5.2 5.5 3.6 -999.9 Storm Dir (deg): 259 249 252 233 209 209 209 206 211 229 267 297 313 331 339 Storm Spd (kts): 8 9 11 13 12 15 13 16 16 15 15 16 12 9 9 2m HeatIndex(F): 60 73 86 73 65 73 76 69 56 55 64 61 58 60 69 2m WindChill(F): 60 73 85 73 65 73 76 69 56 55 64 61 58 60 69 1000mb GPH (m): 117 126 105 114 115 122 116 133 151 171 170 181 187 201 181 950mb GPH (m): 554 568 558 561 557 565 563 574 581 598 605 614 618 632 619 950mb Temp (C): 18.8 18.4 25.0 23.7 21.1 18.3 20.4 16.8 10.3 8.2 13.2 12.0 11.8 11.3 15.2 950mb Dewpt(C): 11.7 12.7 14.8 15.9 15.8 15.8 16.1 14.3 9.1 8.0 9.9 11.4 11.6 11.1 11.9 950mb RH (%): 62 68 52 60 71 85 75 85 92 99 80 96 99 98 80 950mb Dir: 213 214 316 13 210 230 263 215 196 198 221 222 231 313 338 950mb Speed(kt): 1 2 5 4 3 2 4 7 10 7 9 12 11 8 8 900mb GPH (m): 1019 1033 1029 1033 1027 1031 1029 1036 1033 1045 1056 1065 1069 1083 1074 900mb Temp (C): 18.8 19.8 22.8 23.7 23.1 21.5 20.3 19.0 12.0 9.8 8.9 8.8 8.8 8.8 11.1 900mb Dewpt(C): 9.2 9.5 4.6 0.2 -0.4 7.0 10.2 12.0 9.7 4.5 8.7 8.5 8.5 8.4 8.8 900mb RH (%): 53 50 29 20 20 38 51 63 86 69 99 98 98 97 86 900mb Dir: 286 349 329 146 317 93 220 220 214 214 222 230 285 310 347 900mb Speed(kt): 3 3 2 2 1 4 4 7 9 15 10 15 7 9 9 850mb GPH (m): 1510 1526 1524 1529 1523 1526 1523 1528 1516 1523 1527 1536 1539 1554 1550 850mb Temp (C): 19.5 20.0 20.7 22.0 22.0 21.4 21.8 18.7 14.8 12.0 7.3 6.8 7.7 7.7 12.3 850mb Dewpt(C): -0.4 -1.5 -1.8 -4.6 -1.7 -1.1 2.3 8.3 3.3 2.9 4.3 5.7 6.2 5.6 3.6 850mb RH (%): 25 23 21 16 20 21 27 50 45 53 81 93 90 86 55 850mb Dir: 274 338 187 177 153 115 186 197 231 224 233 250 300 326 347 850mb Speed(kt): 3 3 2 4 3 11 8 16 13 19 18 14 14 12 15 800mb GPH (m): 2028 2044 2044 2051 2045 2047 2046 2045 2027 2029 2030 2038 2043 2057 2058 800mb Temp (C): 16.7 17.0 18.0 18.5 18.9 18.5 19.1 15.6 13.6 10.9 9.6 9.6 9.8 9.0 10.5 800mb Dewpt(C): -4.4 -3.2 -8.5 -2.7 1.9 -0.5 1.8 6.5 -4.4 -6.9 3.4 1.4 -0.2 0.7 1.8 800mb RH (%): 23 24 15 23 31 27 30 54 28 28 65 56 49 56 54 800mb Dir: 264 236 220 194 164 153 175 181 221 225 236 281 308 329 337 800mb Speed(kt): 4 3 8 8 8 15 12 12 12 18 21 20 17 14 13 750mb GPH (m): 2573 2590 2591 2599 2594 2596 2595 2589 2566 2564 2564 2572 2575 2589 2593 750mb Temp (C): 13.0 13.8 14.0 15.2 14.6 15.1 14.2 12.1 9.3 7.5 7.4 8.0 6.7 6.5 8.1 750mb Dewpt(C): -6.2 -11.4 -0.8 -14.3 3.3 -0.4 -0.1 3.1 1.4 -0.9 -5.6 -9.4 -1.2 -1.4 -1.8 750mb RH (%): 25 16 35 12 46 34 37 54 57 55 39 28 57 56 49 750mb Dir: 249 223 218 209 156 166 171 148 192 215 240 280 297 317 329 750mb Speed(kt): 7 10 16 15 13 23 18 15 12 21 22 22 17 12 12 700mb GPH (m): 3148 3165 3168 3177 3172 3175 3172 3162 3137 3127 3127 3136 3138 3152 3159 700mb Temp (C): 10.3 9.7 10.4 10.7 10.0 10.5 8.9 7.7 7.3 3.2 3.6 3.4 3.7 3.8 4.9 700mb Dewpt(C): -25.4 -13.0 -12.7 -10.6 -1.1 -1.5 -0.9 1.1 2.2 -6.1 -8.5 -5.2 -8.5 -4.4 -4.8 700mb RH (%): 6 18 18 21 45 42 50 63 70 50 41 53 40 55 49 700mb Dir: 237 218 212 206 161 174 171 138 156 196 241 280 290 302 318 700mb Speed(kt): 14 17 19 24 18 28 21 24 20 19 23 24 18 12 12 650mb GPH (m): 3759 3775 3779 3789 3783 3787 3779 3768 3742 3724 3723 3732 3736 3751 3759 650mb Temp (C): 6.1 5.1 5.7 5.8 5.6 5.4 3.1 2.6 2.3 0.1 -1.1 -0.6 0.3 1.0 1.1 650mb Dewpt(C): -43.8 -13.3 -11.6 -10.5 -2.4 -2.5 -1.4 0.6 -2.1 -19.0 -13.2 -10.5 -12.9 -9.0 -11.0 650mb RH (%): 1 25 27 30 56 57 72 86 73 22 39 47 36 47 40 650mb Dir: 227 215 214 202 165 178 176 160 164 188 245 280 289 302 300 650mb Speed(kt): 19 21 20 29 24 32 23 34 28 21 24 26 21 13 12 600mb GPH (m): 4407 4421 4426 4436 4431 4435 4421 4410 4382 4360 4355 4366 4372 4390 4398 600mb Temp (C): 1.0 0.2 0.9 0.1 0.2 0.1 -1.8 -1.5 -2.6 -3.2 -5.7 -4.5 -3.9 -2.7 -2.6 600mb Dewpt(C): -20.9 -13.7 -16.2 -10.5 -6.1 -4.8 -2.7 -2.8 -9.9 -28.4 -20.7 -15.8 -16.9 -14.0 -14.8 600mb RH (%): 18 34 27 45 62 70 93 91 57 13 30 41 36 41 38 600mb Dir: 224 214 223 199 180 184 179 175 174 184 239 275 291 300 276 600mb Speed(kt): 23 19 24 30 32 33 28 39 37 26 26 28 22 14 14 550mb GPH (m): 5098 5111 5118 5127 5122 5126 5110 5098 5066 5041 5031 5047 5054 5074 5082 550mb Temp (C): -4.6 -5.4 -4.4 -4.6 -4.9 -4.8 -5.4 -5.9 -6.9 -8.8 -10.2 -8.0 -7.0 -7.1 -6.8 550mb Dewpt(C): -15.1 -16.1 -15.1 -18.3 -11.4 -9.4 -6.0 -7.5 -18.3 -23.0 -28.2 -23.9 -20.5 -19.6 -19.9 550mb RH (%): 44 43 43 34 61 71 95 89 40 31 22 27 34 36 35 550mb Dir: 221 211 222 204 190 194 176 184 176 188 236 271 283 284 268 550mb Speed(kt): 21 21 31 32 35 37 37 42 45 32 28 31 24 17 16 500mb GPH (m): 5839 5852 5861 5870 5864 5868 5852 5838 5802 5772 5757 5780 5792 5810 5819 500mb Temp (C): -10.6 -9.4 -8.9 -8.6 -9.9 -10.2 -9.6 -10.7 -12.0 -13.7 -15.5 -12.7 -10.8 -11.6 -11.1 500mb Dewpt(C): -16.5 -29.2 -27.4 -28.3 -18.2 -13.4 -10.2 -13.5 -29.3 -31.6 -31.3 -29.5 -28.2 -24.4 -23.9 500mb RH (%): 62 19 21 19 51 78 96 80 23 21 25 24 23 34 34 500mb Dir: 221 216 217 205 197 197 174 187 177 186 239 269 267 269 261 500mb Speed(kt): 21 28 39 37 40 41 44 44 51 43 33 35 27 24 20 450mb GPH (m): 6642 6658 6669 6678 6668 6671 6659 6640 6598 6563 6543 6574 6592 6609 6621 450mb Temp (C): -15.0 -14.0 -13.5 -13.7 -15.0 -15.3 -14.2 -16.3 -17.9 -18.9 -21.6 -18.1 -16.6 -16.6 -15.8 450mb Dewpt(C): -32.9 -43.5 -38.8 -32.3 -27.4 -18.0 -15.3 -19.8 -39.2 -40.0 -35.2 -39.1 -34.3 -28.7 -31.1 450mb RH (%): 21 7 10 20 34 80 91 74 14 15 29 15 21 35 26 450mb Dir: 225 223 215 206 200 192 178 184 179 187 238 265 260 264 258 450mb Speed(kt): 26 34 37 41 43 43 45 45 54 55 38 38 33 32 25 400mb GPH (m): 7522 7542 7553 7562 7548 7551 7541 7516 7468 7431 7397 7443 7465 7482 7496 400mb Temp (C): -20.6 -19.5 -20.0 -20.0 -21.1 -21.0 -21.2 -22.0 -23.5 -24.0 -28.8 -24.4 -23.1 -23.2 -22.6 400mb Dewpt(C): -53.1 -42.2 -38.9 -39.1 -30.0 -23.3 -22.9 -25.8 -40.4 -46.1 -41.1 -44.9 -46.0 -29.7 -29.3 400mb RH (%): 4 12 18 17 45 82 86 71 21 12 31 14 11 56 55 400mb Dir: 225 224 215 205 200 187 187 179 183 188 235 264 257 265 256 400mb Speed(kt): 40 40 38 42 47 49 49 47 59 68 41 40 39 36 30 350mb GPH (m): 8496 8516 8527 8534 8519 8522 8510 8483 8430 8392 8338 8400 8427 8443 8461 350mb Temp (C): -26.6 -27.9 -27.9 -27.9 -28.1 -28.4 -28.6 -29.2 -30.2 -30.1 -35.1 -31.5 -30.8 -31.2 -30.0 350mb Dewpt(C): -53.9 -40.5 -40.8 -37.1 -31.7 -31.2 -31.5 -33.6 -43.8 -48.4 -52.3 -50.9 -44.0 -37.4 -42.9 350mb RH (%): 6 30 29 42 72 77 77 66 27 16 17 14 28 55 29 350mb Dir: 228 222 217 205 201 184 186 174 189 189 224 268 257 265 260 350mb Speed(kt): 53 43 45 49 53 53 58 50 66 76 49 40 44 37 32 300mb GPH (m): 9587 9602 9615 9623 9607 9608 9597 9563 9511 9472 9403 9473 9498 9516 9539 300mb Temp (C): -36.6 -36.9 -36.0 -35.7 -36.2 -37.2 -36.3 -38.6 -37.7 -38.1 -39.6 -39.2 -40.8 -40.3 -39.4 300mb Dewpt(C): -47.4 -46.9 -48.7 -47.8 -39.5 -40.6 -39.7 -43.3 -55.0 -51.4 -59.8 -56.2 -47.8 -46.2 -49.6 300mb RH (%): 33 36 27 29 72 72 72 62 16 25 11 16 49 55 35 300mb Dir: 233 226 219 207 200 194 184 175 193 190 213 260 257 259 266 300mb Speed(kt): 59 49 52 60 61 63 63 60 74 77 66 41 47 47 39 250mb GPH (m): 10824 10840 10857 10866 10845 10840 10835 10792 10739 10702 10638 10696 10712 10732 10757 250mb Temp (C): -45.6 -45.4 -44.7 -45.2 -46.0 -46.5 -46.9 -46.9 -47.3 -46.8 -43.2 -48.0 -49.9 -49.3 -49.7 250mb Dewpt(C): -56.9 -55.7 -56.8 -56.0 -49.7 -50.2 -50.5 -58.2 -55.5 -61.0 -67.8 -65.0 -59.2 -57.0 -57.8 250mb RH (%): 29 32 27 31 67 67 68 28 40 20 6 14 35 42 40 250mb Dir: 234 225 220 207 205 199 183 181 195 193 210 236 256 260 265 250mb Speed(kt): 67 55 58 66 73 78 73 77 76 78 74 51 48 49 37 200mb GPH (m): 12274 12293 12314 12316 12293 12289 12275 12239 12191 12161 12129 12151 12144 12167 12187 200mb Temp (C): -55.9 -55.7 -54.8 -56.0 -55.9 -55.7 -56.7 -54.9 -52.9 -50.4 -46.5 -51.2 -55.9 -56.2 -57.4 200mb Dewpt(C): -64.5 -64.8 -65.0 -60.8 -61.2 -59.6 -60.7 -67.4 -69.4 -72.9 -76.1 -66.3 -67.1 -66.8 -65.7 200mb RH (%): 36 34 30 57 54 64 62 22 14 7 3 17 26 28 37 200mb Dir: 228 223 218 212 207 198 188 192 199 198 214 236 244 249 248 200mb Speed(kt): 64 54 63 70 75 88 84 79 74 71 59 57 53 44 34 150mb GPH (m): 14085 14100 14121 14122 14100 14098 14094 14074 14046 14034 14021 14020 13998 14013 14022 150mb Temp (C): -58.7 -59.9 -60.5 -60.2 -59.7 -58.8 -55.9 -54.7 -54.4 -52.5 -50.7 -50.9 -52.3 -52.5 -52.4 150mb Dewpt(C): -80.1 -77.7 -76.9 -76.7 -76.8 -80.8 -80.7 -84.6 -84.3 -83.1 -85.6 -86.2 -82.6 -82.7 -83.1 150mb RH (%): 6 10 12 12 11 6 4 2 2 2 1 1 2 2 2 150mb Dir: 226 227 218 207 201 199 193 197 200 203 222 232 246 232 234 150mb Speed(kt): 37 37 46 37 39 47 53 56 52 45 47 37 37 36 39 100mb GPH (m): 16645 16649 16665 16676 16657 16660 16664 16661 16635 16627 16641 16630 16600 16607 16610 100mb Temp (C): -57.2 -57.7 -57.6 -58.8 -57.1 -57.9 -57.7 -57.3 -56.5 -55.9 -55.3 -56.3 -54.2 -55.9 -56.1 100mb Dewpt(C): -90.6 -90.9 -86.6 -87.9 -90.7 -91.4 -91.0 -90.8 -90.2 -85.3 -84.9 -85.7 -88.5 -85.4 -89.9 100mb RH (%): 1 1 2 2 1 1 1 1 1 2 2 2 1 2 1 100mb Dir: 232 223 208 214 191 191 215 217 189 204 218 210 219 229 219 100mb Speed(kt): 17 14 15 20 14 22 29 19 24 30 17 25 18 19 20