Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z DEC 19, 2025 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 981.8 983.7 986.6 990.8 991.1 992.2 989.2 988.4 985.0 982.8 980.1 984.2 987.8 988.2 985.4 Mean SLP (mb): 1006.4 1008.4 1011.4 1015.8 1016.3 1017.3 1014.2 1013.3 1009.9 1007.5 1004.7 1009.0 1012.9 1013.4 1010.3 2m agl Tmp (F): 43.0 42.4 42.6 40.1 39.1 39.2 41.7 40.9 40.6 42.0 43.3 41.8 38.9 38.5 41.4 2m agl Dewpt(F): 40.1 41.4 39.4 39.1 38.2 37.9 36.9 35.5 36.4 37.1 42.5 41.2 37.5 35.0 34.4 2m agl RH (%): 89 96 88 96 96 95 83 81 84 82 97 98 95 87 76 10m agl Dir: 244 229 235 221 191 192 185 178 168 172 190 233 182 161 160 10m agl Spd(kt): 2 8 8 6 8 8 6 7 7 8 8 5 6 6 8 6hr Precip (in): 0.00 0.13 0.10 0.09 0.09 0.19 0.04 0.05 0.02 0.04 0.15 0.12 0.01 0.00 0.00 AccumPrecip(in): 0.00 0.13 0.23 0.32 0.41 0.60 0.63 0.69 0.71 0.75 0.90 1.02 1.03 1.03 1.03 Sfc CAPE (J/kg): 57.2 287.0 207.5 113.4 8.1 9.6 3.8 0.7 0.0 1.7 10.7 170.7 45.6 0.0 0.0 Sfc CINH (J/kg): -6.9 0.0 0.0 -0.1 -0.1 0.0 -0.4 0.0 -0.1 0.0 -6.5 0.0 -0.7 -0.3 0.0 0-3km Hel(J/kg): 80.1 66.3 110.4 135.2 264.3 229.7 191.6 150.0 227.6 353.1 198.1 128.9 114.7 184.8 235.7 Precip H20 (in): 0.51 0.41 0.38 0.34 0.48 0.49 0.44 0.44 0.46 0.49 0.54 0.35 0.31 0.28 0.41 Lifted Index(C): 11.0 8.5 5.9 5.6 5.1 7.2 8.2 8.0 6.9 4.5 2.7 6.6 9.9 11.7 7.9 700mb VV(-ub/s): 5.9 3.5 5.2 3.4 13.4 4.5 3.4 -2.1 -1.4 15.0 10.7 3.4 -1.4 2.6 2.8 Thk1000-500mb(m)5380.8 5309.8 5292.2 5280.1 5300.8 5315.3 5332.9 5328.9 5338.4 5351.8 5346.2 5311.0 5310.2 5322.5 5321.7 Thk1000-850mb(m)1313.8 1309.5 1307.7 1303.2 1304.8 1305.6 1308.9 1308.7 1311.3 1316.3 1318.2 1309.0 1300.1 1300.7 1309.2 Thk850-700mb(m):1515.6 1499.9 1499.5 1497.3 1510.6 1508.6 1512.5 1509.1 1514.5 1525.7 1523.7 1502.3 1499.7 1503.5 1511.8 SWEAT Index: 131.6 137.9 123.6 100.1 266.7 200.6 195.4 182.2 214.1 227.7 236.5 99.5 189.8 218.8 186.2 Total Totals Idx 34.6 38.2 44.9 47.1 50.6 46.6 44.3 44.7 45.6 50.1 53.3 41.8 37.5 35.0 44.9 Frz Hgt(ft amsl) 3384 3031 2884 2748 2812 3080 3318 3057 3478 4311 3983 2991 2342 2427 3270 0WetBlbHgt(amsl) 3180 2941 2789 2614 2750 2982 2644 2981 3423 4166 3915 2900 2160 2052 2467 Equil Prs (mb): 759 621 603 661 991 992 989 988 985 983 821 672 744 988 985 Equil Hgt(amsl): 7410 12402 13160 11037 26 26 26 26 26 26 5342 10480 8012 26 26 Hail Size(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 0.00 0.00 0.00 Conv Wind Gust: 31.5 27.1 29.3 24.6 23.4 23.0 29.9 24.9 28.0 31.6 29.9 25.3 24.3 28.0 35.5 Showalter Index: 13.3 11.9 8.7 7.6 5.2 7.2 8.5 8.2 7.6 4.3 3.1 10.0 12.4 13.4 8.0 Cap Strength(C): 0.9 0.0 0.0 0.0 1.3 -999.9 -999.9 -999.9 -999.9 -999.9 0.7 0.0 0.0 -999.9 -999.9 Storm Dir (deg): 285 287 295 292 286 281 272 267 267 260 258 274 267 252 253 Storm Spd (kts): 36 30 28 25 29 26 25 23 27 33 36 26 25 27 30 2m HeatIndex(F): 43 42 43 40 39 39 42 41 41 42 43 42 39 38 41 2m WindChill(F): 43 42 43 40 33 33 42 41 41 42 43 42 34 33 41 1000mb GPH (m): 53 69 93 128 131 140 115 108 80 61 38 74 104 107 84 950mb GPH (m): 473 488 512 544 547 555 533 525 498 480 459 492 519 522 501 950mb Temp (C): 4.6 4.0 3.5 2.2 1.5 1.7 3.2 3.5 3.8 4.2 5.0 3.4 1.5 1.4 2.9 950mb Dewpt(C): 2.8 2.4 1.9 1.7 1.3 1.4 0.7 1.0 0.5 1.9 4.7 2.7 0.7 -0.1 -0.7 950mb RH (%): 88 89 89 97 99 98 84 84 79 85 98 96 95 90 77 950mb Dir: 303 233 242 230 199 203 194 195 189 185 198 241 199 178 169 950mb Speed(kt): 6 15 17 17 21 21 16 20 19 18 17 11 16 15 15 900mb GPH (m): 910 924 947 978 980 990 969 961 935 918 898 928 952 955 937 900mb Temp (C): 0.9 0.0 -0.6 -1.0 -0.6 -0.2 0.3 -0.3 0.9 1.9 2.2 -0.1 -1.8 -1.4 0.3 900mb Dewpt(C): 0.1 -0.4 -0.9 -1.8 -0.8 -0.5 -3.3 -0.4 0.7 1.1 1.9 -0.6 -3.2 -3.2 -2.6 900mb RH (%): 94 97 98 95 99 98 77 99 98 95 98 97 90 87 81 900mb Dir: 307 258 253 250 219 225 206 211 209 210 224 264 206 199 193 900mb Speed(kt): 13 20 23 17 30 29 25 27 31 39 29 12 18 24 28 850mb GPH (m): 1367 1378 1401 1431 1436 1445 1424 1417 1392 1377 1357 1383 1404 1408 1393 850mb Temp (C): -2.6 -3.9 -4.1 -4.3 -2.6 -2.6 -3.0 -2.6 -2.3 -0.3 -1.0 -3.4 -4.7 -4.4 -2.0 850mb Dewpt(C): -4.7 -5.0 -5.3 -6.5 -2.8 -2.8 -3.5 -3.6 -2.6 -0.6 -1.3 -6.5 -8.6 -9.9 -5.6 850mb RH (%): 86 92 91 85 99 98 97 93 98 98 98 79 74 65 77 850mb Dir: 285 267 268 255 239 238 224 226 216 228 233 258 217 204 213 850mb Speed(kt): 18 23 27 21 32 24 26 26 32 45 37 20 21 25 30 800mb GPH (m): 1844 1854 1875 1906 1914 1923 1902 1895 1870 1860 1838 1859 1878 1883 1871 800mb Temp (C): -6.4 -7.3 -7.5 -7.5 -5.7 -5.8 -5.3 -5.2 -5.2 -3.4 -3.5 -6.9 -8.0 -7.0 -5.4 800mb Dewpt(C): -7.2 -8.2 -10.2 -18.2 -5.8 -6.3 -5.5 -7.0 -5.5 -3.8 -3.7 -10.7 -13.5 -15.7 -7.9 800mb RH (%): 94 93 81 42 99 97 98 87 98 98 99 75 65 50 82 800mb Dir: 274 265 268 255 245 243 238 225 221 234 233 245 228 204 222 800mb Speed(kt): 27 27 30 29 33 28 27 25 29 39 41 26 19 21 32 750mb GPH (m): 2346 2353 2374 2404 2417 2425 2406 2397 2375 2367 2345 2358 2377 2383 2374 750mb Temp (C): -7.5 -11.2 -11.0 -11.5 -9.5 -9.3 -8.3 -9.5 -8.2 -6.0 -6.7 -10.6 -10.6 -9.7 -8.9 750mb Dewpt(C): -7.8 -12.0 -15.0 -20.3 -9.7 -9.8 -8.7 -10.6 -8.6 -6.5 -6.9 -14.6 -19.3 -30.0 -10.3 750mb RH (%): 97 94 72 49 99 96 98 92 97 96 98 73 49 18 89 750mb Dir: 259 266 266 257 252 246 244 228 237 227 231 238 247 211 228 750mb Speed(kt): 47 28 33 34 30 30 27 21 28 41 44 34 21 22 34 700mb GPH (m): 2882 2878 2900 2928 2947 2954 2936 2926 2906 2903 2880 2885 2904 2911 2905 700mb Temp (C): -9.2 -14.8 -14.5 -15.6 -12.8 -13.0 -12.7 -13.4 -11.1 -10.3 -9.8 -13.1 -13.3 -12.2 -12.6 700mb Dewpt(C): -9.5 -15.6 -18.0 -18.3 -12.8 -16.3 -13.6 -15.3 -16.5 -12.9 -11.6 -27.8 -23.5 -27.5 -12.7 700mb RH (%): 98 94 74 80 100 76 93 86 65 81 87 29 43 27 99 700mb Dir: 248 270 261 255 249 249 246 239 249 226 237 237 245 215 233 700mb Speed(kt): 53 27 37 38 33 32 28 22 34 45 51 40 30 29 36 650mb GPH (m): 3453 3434 3457 3485 3506 3516 3499 3490 3472 3469 3447 3448 3467 3477 3466 650mb Temp (C): -11.1 -18.5 -18.0 -17.2 -17.4 -15.4 -14.7 -13.5 -13.8 -13.8 -14.4 -14.8 -14.2 -13.0 -15.7 650mb Dewpt(C): -15.3 -22.6 -24.1 -38.4 -19.4 -21.8 -22.2 -27.1 -22.2 -24.1 -16.5 -41.9 -46.3 -41.4 -21.3 650mb RH (%): 72 71 60 15 85 59 53 32 50 42 84 9 5 8 62 650mb Dir: 246 271 253 258 255 256 252 245 250 235 229 240 243 226 233 650mb Speed(kt): 70 30 41 40 40 38 36 31 40 51 62 47 42 40 42 600mb GPH (m): 4064 4030 4051 4082 4102 4117 4103 4093 4076 4072 4049 4048 4069 4081 4066 600mb Temp (C): -12.5 -18.1 -21.0 -20.0 -20.0 -18.5 -16.7 -17.3 -17.9 -17.8 -17.9 -18.7 -16.4 -17.4 -19.3 600mb Dewpt(C): -41.8 -55.6 -49.2 -33.8 -27.1 -24.5 -32.2 -28.2 -26.8 -40.1 -25.1 -56.7 -42.5 -30.0 -26.0 600mb RH (%): 7 3 7 29 54 60 26 39 46 13 54 2 9 33 56 600mb Dir: 249 258 269 272 272 260 251 250 251 237 225 240 243 230 230 600mb Speed(kt): 80 58 44 44 48 45 45 40 47 53 67 52 49 50 51 550mb GPH (m): 4724 4678 4693 4721 4743 4760 4751 4740 4722 4717 4694 4691 4718 4729 4710 550mb Temp (C): -16.3 -20.1 -22.5 -24.4 -23.7 -22.0 -20.6 -21.0 -21.0 -21.7 -22.6 -22.4 -21.0 -19.7 -21.6 550mb Dewpt(C): -31.7 -60.7 -46.3 -35.6 -34.4 -27.5 -41.3 -35.9 -36.4 -38.7 -35.5 -49.1 -41.3 -43.2 -37.5 550mb RH (%): 26 2 10 36 38 62 15 26 25 21 31 8 15 11 23 550mb Dir: 251 253 274 273 274 265 252 249 249 239 228 242 241 234 227 550mb Speed(kt): 88 79 60 51 59 54 51 50 56 57 70 55 58 66 64 500mb GPH (m): 5434 5379 5385 5408 5432 5455 5448 5437 5419 5413 5385 5384 5414 5430 5405 500mb Temp (C): -20.9 -23.6 -27.1 -29.0 -28.0 -26.0 -25.4 -25.4 -25.3 -25.5 -27.7 -25.8 -25.4 -24.6 -26.3 500mb Dewpt(C): -32.8 -61.1 -48.2 -44.0 -36.1 -32.4 -41.6 -41.1 -45.1 -47.7 -41.3 -58.5 -47.0 -49.3 -44.8 500mb RH (%): 34 2 13 23 47 56 22 23 15 12 27 4 12 9 17 500mb Dir: 252 252 272 272 274 268 252 248 247 239 228 249 243 235 226 500mb Speed(kt): 96 92 69 59 74 64 61 59 61 65 77 60 68 81 74 450mb GPH (m): 6204 6141 6134 6154 6183 6210 6203 6192 6175 6169 6135 6141 6169 6187 6158 450mb Temp (C): -26.3 -27.9 -32.8 -33.6 -31.6 -30.7 -31.3 -30.8 -30.1 -30.7 -31.2 -29.8 -30.7 -31.0 -31.7 450mb Dewpt(C): -30.8 -56.9 -49.5 -51.8 -47.2 -44.1 -36.4 -47.0 -56.2 -53.7 -50.2 -58.4 -50.4 -52.6 -52.4 450mb RH (%): 66 5 18 16 21 27 62 20 7 10 15 5 14 11 12 450mb Dir: 253 252 269 270 275 268 251 253 248 242 234 247 245 232 229 450mb Speed(kt): 106 105 77 70 92 73 64 68 68 75 94 70 80 84 79 400mb GPH (m): 7042 6978 6954 6974 7006 7036 7024 7018 7003 6994 6964 6968 6996 7009 6981 400mb Temp (C): -33.0 -32.8 -37.1 -36.7 -37.1 -36.2 -37.9 -36.1 -35.3 -36.0 -34.3 -36.4 -36.0 -37.6 -37.2 400mb Dewpt(C): -37.5 -52.1 -57.6 -58.7 -50.5 -45.8 -42.8 -54.8 -59.1 -58.9 -64.1 -60.1 -61.9 -55.1 -58.4 400mb RH (%): 65 14 11 10 25 38 61 14 8 9 4 8 6 16 10 400mb Dir: 254 251 268 269 274 267 257 255 249 245 236 244 244 230 230 400mb Speed(kt): 113 113 91 84 103 83 71 75 84 89 114 84 96 88 84 350mb GPH (m): 7970 7904 7870 7889 7917 7949 7937 7932 7921 7909 7886 7883 7907 7917 7889 350mb Temp (C): -38.4 -39.1 -40.7 -40.5 -42.7 -42.5 -39.9 -41.9 -41.0 -41.9 -39.9 -40.8 -43.7 -44.1 -43.2 350mb Dewpt(C): -47.6 -56.2 -65.0 -64.8 -60.4 -53.5 -59.7 -58.8 -50.8 -61.1 -65.5 -65.9 -63.7 -55.6 -62.7 350mb RH (%): 39 16 7 7 14 31 12 16 36 12 6 6 10 29 11 350mb Dir: 252 252 270 268 274 266 256 254 248 245 235 242 241 232 231 350mb Speed(kt): 127 112 106 97 106 98 106 89 101 102 126 102 98 93 89 300mb GPH (m): 9017 8945 8909 8929 8945 8976 8976 8963 8952 8937 8925 8916 8927 8939 8914 300mb Temp (C): -44.1 -45.1 -45.1 -44.5 -47.9 -48.2 -46.7 -47.5 -49.1 -48.8 -47.2 -47.5 -49.7 -49.5 -48.4 300mb Dewpt(C): -63.6 -65.6 -68.0 -66.6 -65.9 -61.9 -57.9 -64.6 -53.0 -63.0 -54.1 -67.2 -64.2 -63.0 -66.5 300mb RH (%): 11 10 7 8 12 21 29 14 65 19 47 10 19 21 12 300mb Dir: 256 254 269 267 272 265 257 252 243 246 236 240 240 234 232 300mb Speed(kt): 133 113 113 106 103 105 136 106 113 112 153 116 99 102 95 250mb GPH (m): 10223 10147 10116 10137 10138 10164 10164 10152 10130 10115 10107 10104 10109 10116 10099 250mb Temp (C): -49.8 -49.5 -47.9 -47.9 -49.5 -51.8 -52.3 -52.1 -53.6 -54.3 -53.8 -53.0 -52.7 -54.1 -52.8 250mb Dewpt(C): -68.7 -72.8 -72.7 -74.3 -71.6 -71.0 -69.5 -71.7 -68.5 -68.9 -68.1 -70.3 -70.7 -69.4 -69.9 250mb RH (%): 11 6 5 4 7 10 13 9 16 17 18 12 11 16 13 250mb Dir: 260 257 270 269 271 265 260 254 247 246 238 239 239 236 233 250mb Speed(kt): 137 119 114 104 101 103 117 104 101 111 133 118 99 100 94 200mb GPH (m): 11667 11606 11585 11603 11600 11610 11606 11592 11565 11545 11534 11538 11545 11547 11534 200mb Temp (C): -52.0 -49.4 -48.0 -49.3 -49.7 -51.1 -51.7 -52.4 -52.7 -53.2 -54.1 -52.4 -53.4 -53.2 -53.7 200mb Dewpt(C): -77.8 -80.5 -79.5 -80.4 -80.8 -81.5 -77.4 -80.0 -78.2 -78.6 -77.8 -77.9 -77.5 -78.6 -77.3 200mb RH (%): 4 2 2 2 2 2 4 3 4 4 5 4 5 4 5 200mb Dir: 262 263 273 270 270 267 261 255 252 248 244 246 242 238 233 200mb Speed(kt): 122 115 101 90 89 89 97 91 97 97 110 97 85 84 85 150mb GPH (m): 13530 13488 13479 13482 13478 13476 13469 13452 13427 13407 13393 13400 13395 13399 13383 150mb Temp (C): -51.4 -49.8 -48.9 -50.5 -51.0 -52.1 -52.4 -52.2 -52.0 -50.9 -51.8 -52.0 -53.6 -53.6 -53.6 150mb Dewpt(C): -86.5 -85.4 -84.8 -81.4 -86.3 -87.0 -87.3 -87.2 -87.0 -86.2 -86.9 -87.0 -83.9 -84.1 -84.0 150mb RH (%): 1 1 1 2 1 1 1 1 1 1 1 1 2 2 2 150mb Dir: 268 267 270 269 274 271 266 259 256 250 252 249 246 242 240 150mb Speed(kt): 95 97 80 78 78 71 81 78 76 76 78 73 72 72 72 100mb GPH (m): 16153 16122 16105 16099 16084 16078 16070 16049 16031 16028 16001 16004 15978 15983 15972 100mb Temp (C): -53.7 -53.6 -54.8 -54.7 -56.1 -55.6 -55.5 -55.9 -55.3 -54.4 -54.4 -55.5 -56.7 -56.1 -56.6 100mb Dewpt(C): -88.2 -88.1 -84.5 -88.9 -89.9 -85.1 -85.1 -85.4 -78.7 -84.3 -84.2 -85.0 -85.9 -85.5 -79.7 100mb RH (%): 1 1 2 1 1 2 2 2 0 2 2 2 2 2 0 100mb Dir: 271 275 276 273 274 269 267 263 261 253 254 251 248 248 245 100mb Speed(kt): 47 49 54 55 60 59 64 68 64 58 63 56 60 60 60