Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z DEC 27, 2025 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 994.8 1000.1 1003.0 1007.1 1008.8 1010.2 1008.9 1008.3 1007.1 1006.5 1004.3 1003.0 1001.6 1000.9 998.1 Mean SLP (mb): 1020.1 1025.5 1028.4 1032.7 1034.4 1035.9 1034.4 1033.9 1032.7 1031.9 1029.4 1028.3 1027.0 1026.3 1023.1 2m agl Tmp (F): 36.5 38.7 39.5 37.9 36.5 37.0 39.7 37.3 36.6 39.9 43.8 38.7 36.7 39.2 43.4 2m agl Dewpt(F): 35.4 38.0 35.1 36.0 36.1 35.0 31.6 28.8 27.5 29.2 29.1 25.8 25.3 26.1 28.2 2m agl RH (%): 96 97 84 93 98 93 72 71 69 65 56 59 63 59 54 10m agl Dir: 228 225 264 163 63 60 67 78 75 74 73 76 76 78 80 10m agl Spd(kt): 3 4 3 2 0 3 6 9 9 10 10 11 11 11 10 6hr Precip (in): 0.00 0.04 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AccumPrecip(in): 0.00 0.04 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 Sfc CAPE (J/kg): 4.0 33.1 40.6 8.1 6.5 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Sfc CINH (J/kg): -1.1 -4.3 0.0 -7.9 -3.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0-3km Hel(J/kg): 272.9 184.3 154.2 124.4 104.9 31.3 36.3 59.9 89.9 65.0 68.7 137.2 163.1 186.7 166.2 Precip H20 (in): 0.37 0.40 0.39 0.54 0.44 0.41 0.45 0.70 0.68 0.53 0.46 0.47 0.55 0.43 0.44 Lifted Index(C): 11.6 12.2 16.6 15.7 17.6 15.2 15.4 15.2 14.4 13.7 11.7 10.2 9.7 10.0 10.0 700mb VV(-ub/s): -4.2 1.6 -1.1 0.0 -1.7 -2.2 -0.9 -2.7 -2.4 -0.8 -0.9 -2.1 -0.7 0.0 0.4 Thk1000-500mb(m)5337.2 5343.7 5364.4 5369.2 5389.1 5434.9 5468.1 5493.9 5526.5 5542.2 5549.1 5563.9 5563.4 5574.4 5588.1 Thk1000-850mb(m)1298.0 1298.0 1294.5 1294.0 1293.4 1300.0 1315.6 1331.0 1338.0 1341.9 1346.4 1348.9 1347.9 1349.3 1354.3 Thk850-700mb(m):1499.3 1505.2 1514.6 1517.3 1524.2 1545.7 1551.1 1552.5 1560.2 1570.4 1577.2 1586.4 1588.6 1592.9 1596.5 SWEAT Index: 105.1 86.0 75.8 62.8 85.0 56.7 46.3 56.6 48.1 39.8 46.8 24.7 31.2 28.3 25.6 Total Totals Idx 38.0 35.7 25.0 24.3 18.7 28.4 27.2 26.5 26.5 28.0 30.9 34.5 34.5 32.9 31.8 Frz Hgt(ft amsl) 2433 2445 2243 2462 2041 2600 7420 7572 8448 10696 10962 11156 11213 11794 12367 0WetBlbHgt(amsl) 2341 2304 1976 2385 1821 1318 2031 5330 5633 5946 7148 6892 6985 7095 7274 Equil Prs (mb): 995 782 832 843 1009 1010 1009 1008 1007 1006 1004 1003 1002 1001 998 Equil Hgt(amsl): 26 7062 5531 5328 26 26 26 26 26 26 26 26 26 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: 24.3 22.6 22.1 20.1 21.0 57.8 58.2 59.6 59.2 56.5 54.7 55.3 53.5 54.6 54.6 Showalter Index: 12.5 13.6 19.2 19.1 20.6 15.6 15.5 15.1 15.0 13.9 12.1 9.9 9.7 10.2 10.5 Cap Strength(C):-999.9 0.0 2.4 3.7 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 Storm Dir (deg): 342 348 360 343 17 26 349 4 8 1 344 326 324 287 267 Storm Spd (kts): 25 21 18 16 18 14 11 13 12 10 11 8 10 10 9 2m HeatIndex(F): 36 39 40 38 36 37 40 37 37 40 44 39 37 39 43 2m WindChill(F): 33 35 38 38 36 37 35 30 29 33 44 31 28 32 43 1000mb GPH (m): 161 204 228 261 274 285 276 270 261 256 238 227 216 211 187 950mb GPH (m): 575 619 642 674 687 698 691 689 681 676 661 648 635 630 610 950mb Temp (C): 1.4 0.9 0.3 0.6 -0.3 0.2 4.0 7.7 9.7 10.7 10.8 11.3 10.8 10.9 12.2 950mb Dewpt(C): 1.0 0.4 -0.7 0.3 -0.9 -4.8 -7.4 -9.2 -7.1 -6.9 -7.4 -7.6 -6.4 -7.8 -7.4 950mb RH (%): 97 96 93 97 96 69 43 29 30 28 27 25 29 26 25 950mb Dir: 286 279 279 261 340 85 86 91 91 84 86 92 92 96 100 950mb Speed(kt): 14 11 6 4 4 8 14 18 19 19 23 24 25 24 22 900mb GPH (m): 1008 1051 1073 1105 1117 1129 1129 1133 1129 1126 1111 1101 1087 1083 1063 900mb Temp (C): -2.2 -2.1 -3.0 -3.0 -3.1 -0.8 3.1 7.2 9.3 9.9 10.7 12.1 12.3 12.8 13.2 900mb Dewpt(C): -2.8 -3.1 -4.1 -3.7 -4.6 -10.6 -7.7 -6.2 -6.1 -5.1 -5.3 -5.6 -7.0 -7.8 -8.2 900mb RH (%): 95 93 92 95 90 48 45 38 33 34 32 28 25 23 21 900mb Dir: 300 303 297 307 331 66 77 61 50 48 64 93 100 141 149 900mb Speed(kt): 21 16 13 10 7 9 8 9 8 7 10 7 4 4 3 850mb GPH (m): 1459 1502 1523 1555 1568 1585 1591 1601 1599 1598 1585 1576 1564 1560 1542 850mb Temp (C): -5.3 -5.3 -6.4 -6.3 -4.8 -0.6 2.2 4.8 5.4 6.4 8.0 9.7 10.3 11.2 11.5 850mb Dewpt(C): -5.8 -6.6 -9.2 -11.9 -15.8 -8.6 -7.2 -6.6 -6.5 -7.1 -6.2 -4.8 -7.2 -8.9 -9.7 850mb RH (%): 97 90 81 65 42 55 49 43 42 37 36 35 28 23 21 850mb Dir: 299 304 300 315 334 46 26 16 29 18 36 52 2 231 243 850mb Speed(kt): 25 19 14 13 13 11 8 11 11 10 8 3 3 1 2 800mb GPH (m): 1932 1975 1995 2030 2044 2070 2079 2092 2091 2092 2082 2077 2065 2063 2045 800mb Temp (C): -8.7 -8.7 -5.9 -5.2 -4.7 -1.0 0.7 1.3 2.5 4.0 5.3 7.4 7.9 8.5 9.0 800mb Dewpt(C): -10.0 -11.1 -33.2 -20.6 -7.7 -9.7 -8.3 -2.7 -6.5 -7.8 -5.5 -10.5 -11.5 -12.2 -12.1 800mb RH (%): 90 83 10 29 80 52 51 75 51 42 45 26 24 21 21 800mb Dir: 294 289 311 330 351 19 2 347 351 356 7 3 308 249 235 800mb Speed(kt): 26 23 18 21 19 13 11 13 13 11 8 2 5 3 7 750mb GPH (m): 2429 2473 2500 2534 2551 2583 2595 2608 2610 2614 2606 2605 2594 2593 2576 750mb Temp (C): -11.4 -9.1 -6.3 -7.0 -5.1 -1.6 -1.3 -1.8 -0.2 1.9 3.0 4.7 5.2 5.8 6.5 750mb Dewpt(C): -13.8 -24.1 -28.5 -9.3 -10.1 -10.8 -9.5 -5.2 -7.8 -6.7 -11.9 -15.4 -15.7 -15.7 -16.2 750mb RH (%): 83 29 16 84 68 50 53 77 56 53 33 22 20 20 18 750mb Dir: 292 316 327 318 351 8 338 337 324 338 334 292 290 245 238 750mb Speed(kt): 29 27 26 18 21 19 9 16 14 10 7 5 9 7 11 700mb GPH (m): 2958 3007 3037 3072 3092 3131 3142 3154 3159 3168 3162 3163 3152 3153 3138 700mb Temp (C): -9.4 -8.7 -8.2 -7.1 -6.6 -3.1 -3.4 -4.9 -2.6 0.3 1.0 1.5 1.6 2.7 3.9 700mb Dewpt(C): -25.9 -30.6 -17.7 -8.4 -13.0 -15.1 -14.8 -6.5 -4.7 -22.5 -21.9 -19.6 -10.6 -16.6 -25.3 700mb RH (%): 25 16 46 90 61 39 41 89 85 16 16 19 40 23 10 700mb Dir: 316 322 331 314 345 2 281 329 312 315 298 278 286 253 243 700mb Speed(kt): 44 37 30 26 22 19 8 14 16 12 9 9 12 12 14 650mb GPH (m): 3530 3579 3610 3649 3668 3714 3725 3734 3746 3759 3753 3755 3746 3748 3736 650mb Temp (C): -10.4 -10.5 -10.4 -9.3 -8.5 -5.7 -5.5 -6.1 -3.2 -1.7 -2.3 -2.2 -2.0 -0.9 0.3 650mb Dewpt(C): -36.3 -24.9 -19.9 -10.5 -15.9 -23.2 -26.3 -6.9 -5.0 -19.8 -21.0 -20.2 -4.3 -10.7 -23.3 650mb RH (%): 10 30 46 91 56 24 18 94 87 24 23 24 84 48 15 650mb Dir: 319 325 332 316 342 350 273 300 311 299 284 269 283 260 250 650mb Speed(kt): 47 40 32 32 30 23 13 17 20 14 10 12 15 17 14 600mb GPH (m): 4141 4191 4222 4263 4286 4338 4350 4360 4378 4392 4384 4384 4378 4381 4371 600mb Temp (C): -13.7 -13.8 -12.9 -12.8 -10.7 -8.5 -7.8 -7.7 -5.1 -5.1 -5.8 -6.2 -5.0 -4.8 -4.9 600mb Dewpt(C): -33.9 -23.2 -22.4 -14.3 -22.5 -26.2 -36.6 -8.6 -7.9 -16.6 -31.3 -13.9 -11.9 -21.7 -7.8 600mb RH (%): 17 45 45 89 38 23 8 93 81 40 12 55 59 26 80 600mb Dir: 323 325 335 313 352 342 284 300 315 288 278 269 286 261 253 600mb Speed(kt): 50 43 37 34 39 31 21 25 26 17 17 15 18 20 16 550mb GPH (m): 4797 4845 4882 4921 4949 5004 5021 5035 5057 5070 5060 5062 5055 5059 5049 550mb Temp (C): -18.5 -18.5 -16.1 -16.8 -14.7 -14.0 -11.8 -9.7 -9.1 -9.8 -9.8 -8.9 -10.5 -9.9 -9.8 550mb Dewpt(C): -37.7 -26.5 -23.6 -18.6 -42.1 -23.3 -26.9 -11.6 -12.4 -12.3 -28.1 -14.3 -15.5 -21.4 -15.0 550mb RH (%): 18 50 53 86 8 46 28 86 77 82 22 65 67 39 66 550mb Dir: 321 326 342 312 349 331 294 311 311 279 272 279 277 271 264 550mb Speed(kt): 52 43 43 36 50 33 27 33 22 21 26 15 22 24 18 500mb GPH (m): 5498 5548 5593 5630 5663 5720 5744 5764 5787 5798 5787 5791 5779 5785 5776 500mb Temp (C): -24.5 -23.8 -20.3 -21.3 -19.6 -18.8 -16.1 -14.1 -13.8 -14.4 -14.6 -14.8 -15.7 -15.3 -15.0 500mb Dewpt(C): -42.5 -30.6 -26.6 -23.6 -37.5 -26.8 -19.8 -16.5 -17.7 -18.2 -19.1 -19.7 -21.8 -23.1 -23.8 500mb RH (%): 18 54 58 82 20 50 74 82 72 73 69 67 60 52 48 500mb Dir: 322 329 345 308 345 327 302 312 306 279 267 274 273 277 258 500mb Speed(kt): 55 47 48 37 60 35 31 34 25 19 31 19 25 26 21 450mb GPH (m): 6255 6309 6366 6400 6437 6498 6530 6556 6579 6588 6578 6580 6569 6573 6563 450mb Temp (C): -31.0 -28.6 -24.8 -25.9 -24.8 -23.4 -21.1 -19.0 -19.5 -19.9 -19.3 -19.8 -19.4 -21.0 -20.9 450mb Dewpt(C): -43.9 -36.7 -30.2 -28.7 -41.2 -34.3 -23.8 -22.7 -24.0 -25.5 -21.6 -30.5 -41.3 -24.9 -25.0 450mb RH (%): 28 46 62 78 21 37 79 73 68 61 82 39 13 72 70 450mb Dir: 321 339 342 303 348 339 312 320 303 271 265 268 271 277 257 450mb Speed(kt): 60 57 54 38 58 39 34 35 21 19 28 24 32 29 23 400mb GPH (m): 7078 7145 7212 7242 7282 7349 7389 7422 7443 7451 7443 7442 7431 7433 7423 400mb Temp (C): -37.9 -32.9 -30.7 -31.6 -31.5 -29.6 -26.8 -25.5 -26.2 -26.0 -25.8 -26.8 -26.7 -26.0 -26.6 400mb Dewpt(C): -46.4 -42.2 -36.5 -34.6 -42.7 -41.9 -29.3 -29.7 -29.8 -31.0 -28.1 -34.5 -30.8 -34.4 -29.8 400mb RH (%): 42 40 58 76 34 31 79 68 73 63 81 49 69 46 75 400mb Dir: 325 348 341 302 356 352 320 330 291 279 267 273 278 264 272 400mb Speed(kt): 66 73 61 42 67 45 46 35 24 17 28 27 34 32 27 350mb GPH (m): 7982 8071 8145 8172 8210 8287 8337 8374 8392 8402 8394 8389 8379 8383 8371 350mb Temp (C): -44.8 -39.5 -37.8 -38.7 -39.5 -36.2 -34.5 -33.4 -34.0 -33.6 -33.9 -34.2 -34.1 -33.9 -34.2 350mb Dewpt(C): -51.3 -49.0 -44.3 -42.0 -45.4 -48.4 -37.9 -37.1 -37.2 -40.7 -37.5 -40.5 -45.2 -44.7 -37.5 350mb RH (%): 50 38 52 72 55 29 72 70 73 50 71 54 33 34 73 350mb Dir: 335 354 341 301 348 355 333 338 291 282 266 276 279 262 270 350mb Speed(kt): 72 82 66 41 81 60 53 33 24 19 30 25 37 33 32 300mb GPH (m): 8999 9106 9187 9208 9246 9341 9394 9433 9450 9462 9453 9448 9436 9441 9428 300mb Temp (C): -51.1 -47.4 -46.7 -48.4 -47.4 -43.9 -43.7 -43.5 -43.6 -43.3 -43.3 -43.7 -43.6 -43.4 -43.7 300mb Dewpt(C): -57.2 -57.9 -52.8 -52.2 -54.1 -47.8 -48.7 -47.2 -47.5 -50.0 -48.0 -53.1 -50.4 -55.6 -47.2 300mb RH (%): 50 31 51 66 48 66 59 68 66 49 61 37 49 27 70 300mb Dir: 347 355 341 302 352 343 342 335 293 283 273 281 276 278 256 300mb Speed(kt): 89 92 73 48 95 75 48 34 21 23 32 36 36 27 39 250mb GPH (m): 10169 10286 10372 10384 10429 10536 10590 10630 10648 10660 10650 10642 10631 10638 10625 250mb Temp (C): -55.0 -57.0 -55.4 -56.6 -55.2 -54.6 -53.9 -53.6 -53.8 -54.1 -54.2 -54.8 -54.8 -54.5 -54.1 250mb Dewpt(C): -68.2 -67.4 -61.3 -63.2 -60.7 -58.6 -61.1 -60.1 -59.0 -60.6 -60.4 -60.0 -59.1 -60.4 -59.3 250mb RH (%): 20 28 50 46 53 63 43 47 55 47 49 55 61 51 54 250mb Dir: 348 356 334 310 351 342 346 328 301 280 276 279 283 292 250 250mb Speed(kt): 73 109 82 54 102 78 51 42 25 31 33 45 37 37 41 200mb GPH (m): 11591 11668 11758 11777 11822 11925 11987 12027 12039 12050 12038 12029 12017 12022 12016 200mb Temp (C): -54.4 -62.4 -65.8 -60.6 -62.8 -65.2 -63.8 -64.8 -65.7 -66.2 -66.0 -64.7 -65.9 -66.5 -65.9 200mb Dewpt(C): -79.2 -71.0 -67.9 -76.4 -72.4 -70.9 -69.9 -69.3 -69.4 -70.9 -68.4 -68.4 -69.5 -69.8 -69.5 200mb RH (%): 4 33 77 13 29 48 46 57 62 54 73 62 63 65 63 200mb Dir: 325 346 333 325 339 344 337 330 324 290 286 278 286 282 259 200mb Speed(kt): 52 71 83 59 73 87 60 44 25 25 38 40 43 36 37 150mb GPH (m): 13427 13475 13522 13563 13613 13674 13716 13755 13758 13786 13777 13778 13764 13765 13758 150mb Temp (C): -55.6 -55.7 -58.4 -59.9 -58.8 -64.9 -68.3 -67.9 -66.5 -63.5 -64.2 -63.5 -64.1 -63.5 -64.0 150mb Dewpt(C): -82.5 -84.8 -84.3 -83.6 -83.7 -80.6 -77.5 -77.0 -79.2 -81.5 -80.0 -81.4 -81.2 -82.2 -82.0 150mb RH (%): 3 2 3 4 4 12 29 30 18 9 12 9 10 8 9 150mb Dir: 305 334 326 329 333 330 338 313 308 308 287 284 276 278 275 150mb Speed(kt): 39 45 45 56 53 47 46 40 39 31 31 36 37 37 32 100mb GPH (m): 16012 16048 16072 16104 16134 16186 16204 16238 16244 16270 16267 16270 16254 16266 16258 100mb Temp (C): -56.2 -58.0 -59.4 -58.4 -60.7 -59.5 -61.1 -61.0 -63.6 -63.8 -62.4 -63.6 -62.4 -61.5 -62.3 100mb Dewpt(C): -90.0 -91.5 -88.0 -91.6 -89.0 -92.0 -89.3 -89.2 -86.7 -86.9 -90.2 -91.0 -90.3 -89.5 -90.2 100mb RH (%): 1 1 2 1 2 1 2 2 4 4 2 2 2 2 2 100mb Dir: 310 318 329 325 332 320 321 311 324 321 294 290 296 289 276 100mb Speed(kt): 19 15 33 30 39 33 33 24 37 24 28 29 34 21 27