Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 0Z DEC 17, 2025 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 987.0 977.6 983.6 993.5 997.0 996.0 990.2 981.6 977.4 977.4 982.2 985.8 987.3 989.5 991.0 Mean SLP (mb): 1011.1 1001.6 1008.4 1018.5 1022.1 1021.1 1015.3 1006.3 1001.5 1001.7 1007.0 1010.7 1012.2 1014.6 1016.1 2m agl Tmp (F): 57.4 55.1 42.0 41.6 41.7 40.4 39.9 41.6 50.8 49.2 41.5 40.3 40.1 38.5 38.3 2m agl Dewpt(F): 50.9 54.4 38.7 39.9 40.0 37.9 37.2 40.5 50.2 48.6 40.1 38.6 37.4 37.6 37.3 2m agl RH (%): 78 97 88 94 94 91 90 96 98 98 95 94 90 97 96 10m agl Dir: 182 207 245 220 207 177 143 134 218 267 294 214 217 197 214 10m agl Spd(kt): 7 13 11 12 8 7 6 9 15 10 4 5 7 8 10 6hr Precip (in): 0.00 0.27 0.49 0.15 0.15 0.07 0.02 0.42 1.32 1.38 0.49 0.06 0.04 0.10 0.20 AccumPrecip(in): 0.00 0.27 0.76 0.90 1.06 1.12 1.15 1.56 2.89 4.26 4.75 4.81 4.85 4.95 5.15 Sfc CAPE (J/kg): 94.0 87.6 55.4 82.7 107.1 1.8 0.6 0.0 0.0 12.1 65.5 151.6 88.4 20.4 37.4 Sfc CINH (J/kg): -3.4 -19.4 0.0 0.0 0.0 -0.1 -1.9 -0.4 -0.2 -0.8 0.0 0.0 -0.3 0.0 -6.9 0-3km Hel(J/kg): 285.6 332.0 176.2 253.7 193.1 157.1 348.9 863.6 546.8 386.1 153.4 109.2 134.9 140.4 183.6 Precip H20 (in): 0.66 1.04 0.41 0.45 0.46 0.60 0.74 1.01 1.06 0.89 0.55 0.33 0.42 0.45 0.39 Lifted Index(C): 1.5 -0.6 11.2 7.5 13.2 17.7 14.8 2.4 2.3 4.7 11.4 11.1 9.3 5.9 5.1 700mb VV(-ub/s): 8.4 20.7 21.0 21.8 3.8 -3.7 1.8 11.8 25.4 29.9 16.7 4.6 22.0 31.4 10.8 Thk1000-500mb(m)5476.8 5506.1 5334.5 5302.7 5333.8 5384.5 5430.0 5514.0 5522.2 5469.8 5382.4 5319.0 5276.7 5267.1 5265.6 Thk1000-850mb(m)1349.8 1355.6 1308.8 1306.5 1304.8 1306.7 1305.6 1322.5 1346.5 1335.6 1307.8 1300.9 1302.9 1300.7 1300.8 Thk850-700mb(m):1555.8 1568.4 1505.4 1503.5 1500.2 1510.9 1525.6 1575.4 1570.1 1552.4 1518.3 1494.0 1498.2 1502.9 1494.4 SWEAT Index: 254.1 401.5 182.2 260.0 152.6 222.5 282.1 333.2 359.7 183.5 140.8 144.3 128.6 249.1 147.1 Total Totals Idx 45.0 52.4 37.8 44.5 33.4 25.7 31.2 40.7 46.7 45.7 35.4 34.4 41.8 50.5 50.0 Frz Hgt(ft amsl) 7647 8062 3018 3145 2979 3205 2864 8943 8137 6622 2854 2377 2558 2233 2493 0WetBlbHgt(amsl) 5429 7931 2959 3074 2930 3060 2784 8839 8033 6540 2799 2183 2419 2143 2399 Equil Prs (mb): 539 508 681 646 690 996 990 982 977 888 777 689 593 593 682 Equil Hgt(amsl): 16414 17711 10151 11706 10150 26 26 26 26 3273 6794 9862 13553 13624 10236 Hail Size(in): 0.05 0.42 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 Conv Wind Gust: 43.1 38.0 30.7 27.8 26.2 24.6 25.7 21.9 32.6 29.0 30.4 28.1 29.8 23.6 25.6 Showalter Index: 5.4 -0.6 11.8 8.6 14.4 17.9 14.8 6.3 2.7 4.9 13.2 14.2 10.3 5.7 6.3 Cap Strength(C): -0.4 0.8 0.0 0.0 0.0 -999.9 -999.9 -999.9 -999.9 0.3 1.9 0.0 -1.0 0.4 0.3 Storm Dir (deg): 267 267 302 297 303 288 282 276 280 281 284 281 291 280 288 Storm Spd (kts): 31 42 40 34 30 24 30 39 45 40 39 34 28 24 29 2m HeatIndex(F): 57 55 42 42 42 40 40 42 51 49 42 40 40 38 38 2m WindChill(F): 57 55 42 42 42 40 35 42 51 49 42 40 40 32 31 1000mb GPH (m): 93 14 68 150 179 171 124 51 13 14 57 87 99 118 130 950mb GPH (m): 525 444 487 568 596 587 540 470 440 439 475 503 516 532 545 950mb Temp (C): 11.8 11.7 2.9 2.8 2.6 2.6 2.0 4.4 9.6 8.4 3.1 1.7 1.9 0.6 1.4 950mb Dewpt(C): 9.1 11.6 2.2 2.4 2.2 1.6 1.6 4.1 9.5 8.1 2.7 0.6 1.0 0.4 1.1 950mb RH (%): 84 99 95 97 97 93 97 98 99 98 97 93 94 98 98 950mb Dir: 199 209 251 227 221 202 161 156 219 267 297 221 221 203 222 950mb Speed(kt): 21 23 19 27 20 22 14 16 25 17 8 8 16 18 25 900mb GPH (m): 975 896 922 1003 1030 1022 974 909 888 884 910 936 949 965 978 900mb Temp (C): 8.0 9.8 0.0 -0.3 -1.0 -0.3 -0.6 2.9 8.1 5.6 -0.3 -1.6 -1.2 -1.2 -1.5 900mb Dewpt(C): 7.4 9.6 -0.2 -0.6 -1.2 -0.8 -0.8 2.6 7.8 5.3 -0.6 -2.3 -1.6 -1.4 -2.0 900mb RH (%): 96 98 98 98 99 97 98 98 98 98 98 95 98 99 96 900mb Dir: 208 223 266 237 238 219 183 203 228 266 304 250 237 219 248 900mb Speed(kt): 31 45 33 35 24 23 20 37 52 27 17 15 22 22 31 850mb GPH (m): 1443 1369 1377 1457 1484 1477 1429 1374 1359 1350 1364 1388 1402 1418 1431 850mb Temp (C): 4.1 7.3 -3.3 -3.7 -4.1 -3.4 -2.5 5.4 6.6 3.2 -3.6 -5.2 -4.5 -3.8 -4.7 850mb Dewpt(C): 1.0 7.0 -3.5 -4.0 -4.4 -3.8 -2.7 5.1 6.4 2.9 -3.9 -7.4 -4.8 -3.9 -6.3 850mb RH (%): 80 98 98 98 98 98 99 98 98 98 98 85 98 99 89 850mb Dir: 219 233 277 249 253 235 195 229 239 262 284 262 258 228 264 850mb Speed(kt): 35 50 45 40 30 20 25 62 70 28 22 25 26 21 34 800mb GPH (m): 1934 1865 1854 1933 1959 1954 1908 1871 1856 1839 1841 1860 1877 1894 1905 800mb Temp (C): 1.9 3.9 -6.5 -7.0 -7.4 -6.2 -5.1 5.6 4.4 0.9 -6.7 -8.7 -7.6 -7.0 -8.3 800mb Dewpt(C): -13.4 3.6 -6.7 -7.3 -7.5 -7.9 -5.3 5.3 4.1 0.7 -6.8 -15.1 -7.7 -7.0 -10.1 800mb RH (%): 31 98 98 98 99 88 98 98 98 98 99 60 99 100 87 800mb Dir: 227 234 289 255 259 239 205 250 253 242 267 257 269 238 264 800mb Speed(kt): 41 56 46 42 28 20 26 59 63 35 34 31 28 23 35 750mb GPH (m): 2451 2387 2354 2433 2458 2455 2413 2396 2378 2355 2345 2357 2375 2394 2402 750mb Temp (C): -0.6 0.4 -10.0 -10.5 -11.0 -9.4 -6.2 1.6 0.5 -1.8 -6.5 -11.7 -11.6 -10.3 -12.3 750mb Dewpt(C): -18.6 -0.1 -10.2 -10.8 -11.2 -12.1 -6.5 1.2 0.2 -2.0 -6.7 -20.8 -11.7 -10.4 -14.0 750mb RH (%): 24 96 98 98 98 80 98 98 98 98 98 47 99 99 87 750mb Dir: 229 236 284 258 265 249 223 259 261 235 249 253 275 245 256 750mb Speed(kt): 45 61 46 40 27 17 26 56 57 53 56 34 32 26 37 700mb GPH (m): 2999 2938 2883 2960 2984 2988 2955 2949 2929 2902 2883 2881 2900 2921 2925 700mb Temp (C): -3.9 -3.0 -13.4 -13.6 -14.1 -9.2 -4.6 -1.1 -2.1 -4.0 -7.6 -14.3 -15.2 -14.6 -15.7 700mb Dewpt(C): -13.2 -3.3 -16.5 -14.2 -17.3 -19.4 -5.1 -1.3 -2.4 -4.3 -8.8 -27.8 -15.7 -14.8 -18.4 700mb RH (%): 48 98 78 96 77 44 96 98 98 98 92 32 96 99 80 700mb Dir: 234 238 274 269 275 265 254 259 258 243 247 258 271 246 251 700mb Speed(kt): 46 65 54 35 26 21 34 55 64 61 69 35 35 29 40 650mb GPH (m): 3579 3521 3444 3519 3548 3558 3539 3538 3515 3484 3458 3443 3456 3478 3481 650mb Temp (C): -7.7 -6.5 -15.2 -17.4 -12.7 -11.8 -4.8 -3.5 -4.6 -6.3 -9.6 -13.8 -19.0 -18.5 -17.5 650mb Dewpt(C): -17.1 -7.2 -35.9 -21.1 -37.7 -16.7 -5.5 -3.8 -5.0 -6.6 -13.0 -41.7 -19.3 -18.5 -32.4 650mb RH (%): 47 95 16 73 11 67 95 98 97 98 76 8 97 100 27 650mb Dir: 242 237 269 276 284 264 268 257 255 252 243 255 267 246 254 650mb Speed(kt): 47 65 64 41 45 25 51 58 68 74 78 57 37 34 43 600mb GPH (m): 4197 4141 4047 4117 4153 4170 4165 4165 4141 4107 4072 4051 4046 4068 4076 600mb Temp (C): -11.4 -10.1 -16.3 -19.0 -16.6 -11.8 -8.3 -7.7 -8.1 -9.8 -12.1 -14.4 -23.7 -24.2 -21.5 600mb Dewpt(C): -16.5 -11.1 -53.4 -36.2 -40.0 -13.9 -8.9 -8.6 -8.9 -10.1 -32.9 -55.2 -25.9 -24.7 -29.4 600mb RH (%): 66 93 3 21 12 84 95 93 94 98 17 2 82 95 50 600mb Dir: 247 239 274 281 284 262 266 255 256 249 249 248 260 249 263 600mb Speed(kt): 51 65 73 58 56 46 66 57 74 85 80 79 44 42 48 550mb GPH (m): 4858 4806 4698 4759 4806 4834 4835 4838 4814 4772 4731 4703 4682 4699 4712 550mb Temp (C): -15.8 -15.0 -18.6 -22.5 -18.1 -13.5 -12.8 -10.8 -11.6 -15.1 -16.9 -19.3 -23.2 -26.2 -25.4 550mb Dewpt(C): -22.1 -16.5 -52.5 -41.9 -52.9 -16.0 -15.7 -12.0 -12.5 -16.4 -20.2 -27.6 -49.1 -38.0 -32.4 550mb RH (%): 59 89 4 16 3 81 79 91 93 90 76 48 8 33 53 550mb Dir: 256 247 269 282 287 274 270 253 253 252 251 248 265 267 267 550mb Speed(kt): 55 68 84 70 74 65 75 72 73 85 87 89 64 53 53 500mb GPH (m): 5570 5520 5403 5453 5513 5555 5554 5565 5535 5484 5439 5406 5376 5385 5396 500mb Temp (C): -20.0 -19.1 -22.3 -26.1 -20.9 -16.5 -18.2 -15.1 -16.9 -19.7 -21.4 -23.5 -25.5 -29.1 -30.5 500mb Dewpt(C): -26.7 -20.7 -55.0 -50.7 -46.3 -19.3 -22.1 -16.6 -18.6 -21.7 -28.3 -39.6 -50.7 -43.1 -38.8 500mb RH (%): 56 87 4 9 9 79 72 88 86 85 55 22 8 26 45 500mb Dir: 260 250 267 283 284 278 274 249 256 256 252 251 264 272 269 500mb Speed(kt): 67 86 93 84 94 73 85 80 80 92 97 95 77 65 59 450mb GPH (m): 6343 6297 6167 6208 6286 6341 6337 6354 6321 6263 6207 6167 6129 6128 6136 450mb Temp (C): -24.8 -24.2 -28.1 -30.6 -23.3 -20.3 -20.4 -20.3 -20.5 -22.4 -26.7 -28.8 -30.8 -34.9 -35.8 450mb Dewpt(C): -28.9 -25.9 -54.6 -53.1 -28.0 -22.9 -22.8 -22.1 -22.5 -24.5 -34.4 -42.9 -53.6 -47.6 -45.2 450mb RH (%): 69 86 7 10 66 80 81 85 84 84 49 26 10 28 39 450mb Dir: 259 245 264 285 287 275 270 252 254 246 252 252 259 270 270 450mb Speed(kt): 79 98 97 102 107 84 97 82 88 101 107 101 90 69 64 400mb GPH (m): 7191 7143 7001 7036 7143 7202 7199 7213 7181 7117 7047 7001 6957 6942 6946 400mb Temp (C): -30.0 -30.7 -33.8 -34.9 -26.8 -26.6 -26.6 -27.6 -27.0 -28.8 -31.9 -33.9 -35.5 -38.3 -39.6 400mb Dewpt(C): -34.3 -33.9 -61.8 -58.9 -29.7 -29.3 -29.1 -30.1 -29.3 -31.3 -48.0 -42.8 -61.6 -59.3 -57.7 400mb RH (%): 67 74 5 8 77 78 79 80 81 80 20 42 6 10 14 400mb Dir: 261 245 262 286 285 276 266 259 255 245 251 252 257 267 274 400mb Speed(kt): 93 103 100 126 119 94 105 92 92 112 120 104 105 82 77 350mb GPH (m): 8126 8077 7924 7962 8091 8153 8149 8160 8128 8055 7978 7923 7877 7854 7853 350mb Temp (C): -37.3 -37.6 -39.9 -37.3 -34.5 -33.1 -33.3 -33.8 -34.7 -36.5 -37.9 -39.4 -39.7 -40.7 -42.6 350mb Dewpt(C): -40.6 -44.2 -65.4 -60.3 -38.0 -36.4 -36.7 -36.7 -37.8 -39.6 -48.2 -54.1 -64.7 -69.2 -64.9 350mb RH (%): 72 51 6 8 72 73 72 75 74 74 35 21 6 4 8 350mb Dir: 258 246 260 289 284 274 268 264 255 248 249 254 258 265 277 350mb Speed(kt): 101 115 106 152 131 104 112 105 101 121 130 104 117 100 92 300mb GPH (m): 9173 9121 8968 9014 9149 9220 9212 9223 9186 9107 9021 8961 8916 8895 8885 300mb Temp (C): -45.0 -46.2 -44.1 -43.5 -43.0 -41.3 -42.0 -42.1 -42.6 -43.7 -45.8 -46.8 -46.1 -44.8 -46.1 300mb Dewpt(C): -50.1 -52.4 -71.5 -57.8 -46.8 -45.7 -45.9 -46.8 -46.0 -46.4 -51.9 -61.6 -67.7 -67.8 -67.5 300mb RH (%): 58 51 4 21 68 64 67 62 71 76 52 19 8 7 8 300mb Dir: 263 248 262 297 286 278 271 269 259 254 251 256 261 265 275 300mb Speed(kt): 121 122 120 184 137 123 124 116 120 135 134 102 124 109 95 250mb GPH (m): 10365 10313 10173 10215 10350 10426 10418 10426 10391 10307 10217 10155 10112 10102 10089 250mb Temp (C): -54.1 -52.2 -49.0 -51.4 -53.0 -52.9 -52.1 -53.5 -53.0 -52.6 -51.8 -50.5 -50.6 -48.0 -48.2 250mb Dewpt(C): -59.5 -64.7 -73.5 -66.3 -57.4 -56.9 -57.0 -57.6 -56.3 -55.5 -64.0 -73.2 -73.6 -71.6 -71.5 250mb RH (%): 53 23 5 17 60 64 57 63 68 72 24 6 6 6 6 250mb Dir: 260 251 264 294 292 278 277 273 267 255 254 257 265 268 276 250mb Speed(kt): 131 132 121 165 161 131 139 122 130 147 127 112 120 109 97 200mb GPH (m): 11793 11752 11633 11661 11751 11825 11824 11826 11794 11724 11648 11602 11563 11565 11553 200mb Temp (C): -52.6 -52.3 -50.2 -50.1 -61.8 -61.9 -62.2 -60.3 -62.1 -57.7 -55.0 -52.0 -50.4 -49.7 -49.5 200mb Dewpt(C): -72.8 -78.1 -78.1 -80.0 -69.3 -67.9 -65.9 -70.2 -66.8 -71.8 -77.0 -79.3 -78.4 -80.3 -80.2 200mb RH (%): 8 4 3 2 39 47 63 29 55 17 6 3 3 2 2 200mb Dir: 271 259 267 280 298 289 275 271 265 257 256 262 266 268 272 200mb Speed(kt): 117 113 119 114 135 125 129 108 116 128 117 110 106 97 90 150mb GPH (m): 13651 13624 13524 13547 13566 13615 13597 13600 13575 13542 13489 13472 13442 13442 13431 150mb Temp (C): -52.0 -50.1 -47.7 -48.2 -54.3 -59.6 -60.7 -61.4 -59.7 -56.7 -53.9 -50.5 -50.4 -50.8 -50.6 150mb Dewpt(C): -87.0 -85.7 -98.4 -84.2 -87.4 -83.4 -82.8 -83.4 -83.5 -85.6 -87.6 -85.9 -85.9 -86.1 -88.8 150mb RH (%): 1 1 0 1 1 4 5 5 4 2 1 1 1 1 1 150mb Dir: 266 262 270 282 282 278 273 269 269 268 265 267 269 273 277 150mb Speed(kt): 108 109 94 71 89 91 110 109 113 104 102 88 91 85 78 100mb GPH (m): 16241 16224 16171 16181 16157 16160 16131 16152 16146 16133 16101 16089 16069 16065 16051 100mb Temp (C): -58.5 -58.6 -52.8 -55.2 -57.6 -59.3 -58.4 -57.0 -55.9 -55.7 -53.4 -54.5 -53.3 -53.6 -54.5 100mb Dewpt(C): -98.4 -91.5 -87.5 -89.3 -91.0 -92.2 -91.5 -90.5 -89.8 -85.2 -83.5 -88.8 -87.9 -88.2 -88.8 100mb RH (%): 0 1 1 1 1 1 1 1 1 2 2 1 1 1 1 100mb Dir: 263 264 271 269 271 277 280 279 275 267 270 273 277 276 270 100mb Speed(kt): 62 61 52 37 45 53 66 58 53 56 54 58 54 57 60