Station ID: KPDX Lat: 45.59 Long: -122.60 NAM Model Run: 12Z MAY 28, 2026 Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr Sfc Prs(mb): 985.8 984.4 982.0 986.3 988.9 993.6 995.8 998.5 999.7 1001.4 1001.5 1003.9 1004.4 1004.0 1000.9 Mean SLP (mb): 1010.0 1008.0 1005.6 1010.6 1013.4 1018.2 1020.3 1023.5 1024.9 1026.4 1026.1 1028.9 1029.7 1028.9 1025.2 2m agl Tmp (F): 53.8 68.6 75.6 52.9 50.5 52.8 56.4 45.6 43.9 49.6 56.6 47.6 40.0 52.5 62.8 2m agl Dewpt(F): 51.3 58.1 57.7 48.3 49.1 45.4 40.9 36.6 35.9 38.6 41.1 38.7 37.5 41.1 45.1 2m agl RH (%): 91 68 53 84 95 75 55 70 73 65 55 71 91 64 51 10m agl Dir: 106 287 293 265 253 278 292 297 282 262 292 303 307 295 323 10m agl Spd(kt): 2 5 10 6 6 7 10 6 4 5 8 5 2 4 9 6hr Precip (in): 0.00 0.00 0.00 0.00 0.03 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AccumPrecip(in): 0.00 0.00 0.00 0.00 0.03 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 Sfc CAPE (J/kg): 0.0 0.0 120.4 5.0 40.0 43.4 10.9 3.4 10.0 19.6 31.5 0.6 0.0 4.2 0.2 Sfc CINH (J/kg): -0.3 -20.1 -223.3 -0.2 0.0 0.0 0.0 -0.2 0.0 0.0 0.0 -0.2 0.0 0.0 0.0 0-3km Hel(J/kg): 25.6 -6.1 48.6 59.6 77.8 13.0 23.1 -1.7 -11.6 -5.5 13.6 55.0 26.6 -0.1 10.5 Precip H20 (in): 0.99 0.94 0.95 0.90 0.90 0.70 0.36 0.32 0.34 0.41 0.47 0.38 0.39 0.39 0.44 Lifted Index(C): 0.7 1.1 -0.2 4.8 8.5 11.8 11.7 15.0 15.6 11.1 7.1 11.4 13.3 13.3 9.1 700mb VV(-ub/s): 3.3 -1.9 -1.1 2.8 3.0 1.7 -0.6 -1.2 -0.1 -1.1 -1.3 -2.3 -2.2 -1.5 -1.8 Thk1000-500mb(m)5641.2 5652.4 5662.3 5596.8 5540.4 5497.7 5487.8 5460.6 5432.1 5413.1 5422.0 5425.5 5437.2 5463.2 5513.6 Thk1000-850mb(m)1372.9 1383.1 1390.9 1351.4 1333.8 1325.3 1330.6 1315.5 1308.1 1313.3 1329.5 1319.9 1315.2 1324.4 1348.2 Thk850-700mb(m):1614.3 1617.0 1614.1 1599.9 1581.5 1560.9 1548.8 1542.4 1538.3 1534.7 1536.8 1541.9 1548.1 1553.1 1562.2 SWEAT Index: 116.7 92.4 35.6 88.0 62.2 43.4 43.8 43.0 53.6 58.3 45.5 47.4 46.6 43.2 34.3 Total Totals Idx 48.1 47.6 40.6 42.3 36.2 24.6 24.9 23.9 23.4 34.9 41.7 35.1 29.5 26.2 20.0 Frz Hgt(ft amsl) 12792 12639 12955 12308 10574 8091 6907 5856 2902 3693 5020 4876 7411 7766 8500 0WetBlbHgt(amsl) 10271 9827 9631 10170 8614 3997 4160 3227 2773 3539 4770 4147 3664 3903 4811 Equil Prs (mb): 986 379 259 986 882 846 996 999 1000 838 779 1004 1004 1004 1001 Equil Hgt(amsl): 26 25473 33941 26 3750 4952 26 26 26 5392 7342 26 26 26 26 Hail Size(in): 0.22 0.40 0.39 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: 43.9 46.6 52.6 44.1 5.1 23.7 29.8 21.3 18.9 21.0 31.6 23.2 41.3 39.9 43.1 Showalter Index: 0.4 1.3 5.6 4.8 9.4 16.6 16.6 16.9 16.8 12.8 8.7 12.3 14.1 14.4 15.8 Cap Strength(C):-999.9 3.0 2.4 -999.9 3.3 -999.9 -999.9 3.6 3.4 -999.9 -999.9 -999.9 -999.9 -999.9 -999.9 Storm Dir (deg): 163 327 3 358 345 329 316 305 300 294 309 333 337 349 357 Storm Spd (kts): 5 5 8 8 11 10 11 9 9 10 10 12 9 7 7 2m HeatIndex(F): 54 69 76 53 51 53 56 46 44 50 57 48 40 53 63 2m WindChill(F): 54 69 76 53 51 53 56 46 44 50 57 48 40 53 63 1000mb GPH (m): 83 69 48 88 111 150 169 192 202 216 217 236 239 237 211 950mb GPH (m): 515 507 492 515 536 575 595 612 619 636 643 658 657 658 643 950mb Temp (C): 13.7 15.6 20.3 8.2 7.4 6.6 8.1 3.9 2.5 4.2 8.0 5.4 3.6 4.8 11.3 950mb Dewpt(C): 10.3 12.7 12.4 8.1 7.1 5.5 3.0 1.7 1.4 2.2 3.2 2.9 2.0 3.1 4.9 950mb RH (%): 80 83 59 99 98 93 70 86 92 87 71 83 89 88 64 950mb Dir: 171 293 296 279 273 281 295 310 300 270 297 322 348 301 330 950mb Speed(kt): 2 4 13 9 11 9 14 11 7 7 10 14 8 4 12 900mb GPH (m): 972 966 955 962 979 1016 1038 1048 1053 1073 1086 1097 1094 1097 1091 900mb Temp (C): 15.1 16.1 15.8 10.9 3.7 2.6 3.7 0.1 -1.6 0.2 3.7 1.7 1.8 3.7 6.9 900mb Dewpt(C): 10.2 9.7 10.7 5.2 3.5 1.3 2.1 -1.0 -2.0 -0.1 2.4 0.7 -2.0 -3.6 3.2 900mb RH (%): 72 65 71 67 99 92 89 92 97 97 91 93 75 59 77 900mb Dir: 340 337 302 322 300 295 296 325 327 302 298 345 335 7 337 900mb Speed(kt): 2 8 15 16 15 11 14 11 10 9 11 11 9 10 12 850mb GPH (m): 1456 1452 1439 1440 1445 1476 1499 1507 1510 1529 1546 1556 1554 1561 1560 850mb Temp (C): 14.3 15.1 14.2 10.7 6.3 1.9 1.3 1.0 0.0 -1.8 -0.1 -0.3 1.4 4.1 6.3 850mb Dewpt(C): 7.8 5.0 -0.4 3.7 0.2 -10.3 -10.4 -12.3 -15.0 -5.9 -1.4 -4.4 -11.7 -13.8 -18.0 850mb RH (%): 64 50 36 61 64 40 41 36 31 73 91 74 37 26 16 850mb Dir: 1 340 315 324 320 300 311 304 324 328 316 312 340 6 14 850mb Speed(kt): 5 9 13 20 24 15 15 14 16 18 12 7 13 13 7 800mb GPH (m): 1965 1962 1947 1944 1942 1966 1986 1992 1993 2011 2029 2040 2042 2051 2053 800mb Temp (C): 10.9 12.2 11.2 9.2 5.8 2.8 0.4 -0.8 -1.5 -1.8 -2.5 0.0 1.1 2.0 3.6 800mb Dewpt(C): 4.4 2.1 2.6 -1.3 -0.7 -7.4 -21.4 -20.8 -21.0 -17.9 -7.5 -23.4 -31.0 -29.5 -27.8 800mb RH (%): 64 49 55 48 63 47 18 21 21 28 69 15 7 8 8 800mb Dir: 52 340 319 325 324 306 317 296 316 322 324 311 328 1 17 800mb Speed(kt): 7 5 12 20 21 20 18 13 14 15 12 10 12 11 4 750mb GPH (m): 2501 2500 2484 2475 2468 2485 2501 2505 2505 2522 2541 2554 2557 2568 2573 750mb Temp (C): 9.2 9.5 9.2 6.6 4.0 -0.1 -1.5 -2.4 -3.2 -3.6 -2.4 -2.3 -1.5 -1.3 0.1 750mb Dewpt(C): -0.5 -1.1 -0.9 -2.1 -2.0 -2.9 -36.5 -33.6 -30.1 -26.6 -33.4 -27.5 -24.7 -17.4 -17.8 750mb RH (%): 50 47 49 53 64 81 5 7 11 15 8 13 15 28 25 750mb Dir: 111 304 329 327 329 303 306 296 312 309 306 311 320 340 0 750mb Speed(kt): 4 5 10 15 17 16 15 12 12 12 13 11 11 9 4 700mb GPH (m): 3071 3069 3053 3040 3026 3037 3048 3050 3048 3064 3083 3098 3102 3114 3122 700mb Temp (C): 6.6 6.3 6.6 4.4 1.2 -1.4 -2.8 -4.2 -4.7 -6.1 -6.2 -5.2 -4.8 -4.7 -2.6 700mb Dewpt(C): -6.6 -9.5 -11.5 -3.6 -7.4 -7.0 -29.7 -32.5 -37.1 -34.8 -26.4 -29.9 -17.3 -16.9 -21.7 700mb RH (%): 38 31 26 55 53 66 11 9 6 9 19 13 37 38 22 700mb Dir: 169 253 335 342 334 292 273 286 291 281 291 302 309 310 338 700mb Speed(kt): 9 8 6 8 15 12 15 11 8 10 14 13 12 7 4 650mb GPH (m): 3673 3670 3656 3639 3618 3625 3633 3633 3629 3640 3658 3675 3680 3694 3706 650mb Temp (C): 1.9 1.3 2.4 0.8 -2.4 -3.8 -3.7 -4.2 -6.4 -8.3 -9.9 -9.3 -8.8 -7.0 -5.1 650mb Dewpt(C): -12.4 -12.8 -10.5 -9.8 -5.5 -8.2 -29.4 -45.3 -39.6 -38.5 -20.5 -26.2 -19.0 -29.2 -21.1 650mb RH (%): 34 34 38 45 79 72 12 3 6 7 42 25 44 16 28 650mb Dir: 164 187 88 344 336 295 255 262 256 247 276 296 292 305 320 650mb Speed(kt): 10 3 7 5 15 12 17 12 9 11 15 17 13 9 6 600mb GPH (m): 4311 4308 4296 4276 4249 4252 4262 4261 4251 4258 4271 4288 4297 4314 4330 600mb Temp (C): -3.5 -3.2 -2.9 -3.9 -6.3 -7.1 -5.9 -6.8 -9.0 -10.9 -12.9 -13.0 -10.2 -9.3 -8.5 600mb Dewpt(C): -14.6 -15.4 -11.2 -8.7 -8.1 -12.2 -37.3 -27.4 -25.6 -24.8 -22.6 -27.4 -40.8 -30.4 -16.2 600mb RH (%): 42 38 53 69 88 67 7 18 25 31 44 29 7 17 54 600mb Dir: 166 159 100 81 319 301 259 241 239 227 255 292 287 287 305 600mb Speed(kt): 12 6 11 7 16 15 16 17 16 16 17 19 14 9 8 550mb GPH (m): 4993 4990 4978 4956 4924 4925 4935 4933 4918 4919 4930 4948 4962 4981 5001 550mb Temp (C): -8.3 -8.1 -8.0 -9.4 -10.3 -11.3 -11.7 -12.0 -13.9 -16.1 -16.3 -15.2 -14.1 -13.3 -11.5 550mb Dewpt(C): -18.9 -19.0 -15.0 -12.7 -13.2 -19.7 -29.6 -30.5 -23.6 -21.6 -39.7 -52.8 -32.7 -25.9 -29.0 550mb RH (%): 42 42 57 77 79 50 22 21 44 63 12 3 20 34 23 550mb Dir: 148 120 102 96 308 306 273 231 221 216 244 292 284 286 306 550mb Speed(kt): 10 8 8 4 14 15 16 14 19 18 20 27 17 12 13 500mb GPH (m): 5725 5721 5710 5685 5651 5648 5656 5652 5634 5629 5639 5662 5676 5700 5725 500mb Temp (C): -13.0 -13.7 -13.4 -13.9 -14.8 -16.5 -17.0 -17.6 -19.2 -21.3 -21.6 -19.9 -19.9 -18.0 -15.8 500mb Dewpt(C): -23.6 -23.6 -19.3 -24.3 -18.7 -25.0 -36.4 -35.1 -30.5 -26.4 -38.7 -40.6 -27.0 -27.9 -29.8 500mb RH (%): 41 44 62 42 72 48 18 21 37 64 21 15 54 42 30 500mb Dir: 103 122 105 64 305 310 265 227 212 210 248 294 277 292 309 500mb Speed(kt): 12 14 10 4 13 14 14 16 22 22 22 33 20 18 20 450mb GPH (m): 6519 6514 6502 6477 6441 6430 6437 6430 6407 6397 6405 6433 6450 6479 6510 450mb Temp (C): -18.3 -19.2 -19.7 -19.4 -19.9 -21.9 -22.9 -23.2 -25.4 -27.1 -27.9 -25.5 -24.4 -23.1 -21.1 450mb Dewpt(C): -26.0 -29.0 -27.5 -28.5 -22.9 -26.7 -46.1 -42.0 -29.4 -29.5 -45.6 -43.6 -30.2 -34.2 -35.4 450mb RH (%): 51 42 51 45 78 66 11 17 70 80 18 18 59 36 27 450mb Dir: 83 120 111 35 304 304 267 220 208 204 243 296 282 296 312 450mb Speed(kt): 17 21 13 6 6 12 12 17 26 23 22 39 24 23 26 400mb GPH (m): 7388 7378 7365 7341 7304 7287 7290 7281 7250 7233 7238 7275 7297 7330 7368 400mb Temp (C): -24.3 -25.5 -26.0 -25.9 -25.7 -27.3 -28.4 -29.6 -31.6 -33.9 -34.8 -32.3 -30.8 -30.1 -27.9 400mb Dewpt(C): -35.3 -31.3 -31.1 -34.4 -28.4 -31.2 -52.3 -41.5 -39.5 -36.8 -50.6 -44.7 -37.3 -46.2 -39.8 400mb RH (%): 37 59 63 46 78 70 9 32 47 76 20 29 54 21 32 400mb Dir: 68 111 116 125 260 303 263 220 199 189 236 300 286 307 317 400mb Speed(kt): 22 27 21 6 2 8 13 19 29 28 22 45 29 31 39 350mb GPH (m): 8345 8331 8316 8292 8255 8233 8231 8218 8180 8154 8154 8200 8227 8263 8312 350mb Temp (C): -31.6 -32.8 -33.5 -32.9 -33.5 -34.7 -35.5 -36.8 -38.6 -40.9 -42.1 -40.3 -38.7 -38.2 -35.5 350mb Dewpt(C): -42.4 -37.3 -37.4 -48.0 -37.9 -39.0 -47.6 -41.5 -42.4 -51.3 -54.0 -53.2 -49.4 -43.6 -50.2 350mb RH (%): 35 65 69 22 65 66 30 63 68 33 28 26 33 58 22 350mb Dir: 67 90 100 127 77 295 244 213 195 181 223 300 293 312 318 350mb Speed(kt): 24 27 25 14 7 7 15 21 31 36 21 51 41 38 53 300mb GPH (m): 9414 9396 9377 9358 9317 9291 9283 9264 9219 9187 9182 9232 9264 9303 9362 300mb Temp (C): -40.9 -42.0 -42.2 -41.3 -42.6 -43.5 -44.6 -45.9 -46.8 -47.9 -47.7 -48.4 -48.2 -47.0 -45.2 300mb Dewpt(C): -52.2 -46.8 -51.1 -46.8 -47.1 -47.0 -52.7 -50.0 -51.7 -60.1 -62.1 -58.5 -55.1 -54.7 -56.5 300mb RH (%): 31 61 39 57 62 70 42 64 59 25 20 32 47 43 29 300mb Dir: 80 105 103 126 65 286 223 199 196 177 214 301 296 311 322 300mb Speed(kt): 25 26 23 19 12 5 18 23 31 43 22 52 46 48 54 250mb GPH (m): 10625 10604 10586 10569 10518 10487 10477 10452 10407 10372 10376 10413 10439 10486 10552 250mb Temp (C): -51.2 -51.2 -50.8 -50.8 -53.6 -54.5 -54.5 -53.6 -53.8 -52.1 -49.8 -52.4 -55.6 -54.8 -54.8 250mb Dewpt(C): -58.0 -57.6 -62.7 -55.3 -57.7 -58.0 -58.0 -60.5 -64.6 -65.7 -70.0 -68.0 -64.0 -62.3 -64.2 250mb RH (%): 46 48 25 61 63 67 67 45 28 20 9 15 37 42 33 250mb Dir: 72 112 128 113 67 272 213 202 201 183 219 287 289 314 322 250mb Speed(kt): 31 27 20 36 18 6 20 25 35 40 24 28 37 48 56 200mb GPH (m): 12044 12029 12014 11992 11939 11904 11891 11876 11831 11819 11834 11858 11867 11908 11960 200mb Temp (C): -57.7 -57.2 -56.6 -58.6 -54.1 -54.8 -54.6 -55.1 -53.3 -49.9 -49.7 -51.5 -52.4 -54.2 -56.6 200mb Dewpt(C): -67.8 -69.7 -70.0 -64.9 -70.2 -70.1 -72.8 -75.1 -74.8 -81.7 -80.4 -79.3 -79.9 -77.4 -74.1 200mb RH (%): 29 21 19 47 14 15 10 8 7 2 2 3 3 5 11 200mb Dir: 63 87 99 113 210 235 225 207 194 206 210 234 264 294 324 200mb Speed(kt): 30 24 17 67 17 15 21 26 38 31 25 18 23 21 31 150mb GPH (m): 13868 13856 13848 13819 13789 13765 13749 13734 13702 13701 13715 13731 13733 13762 13803 150mb Temp (C): -57.6 -56.7 -55.2 -54.2 -52.9 -51.6 -50.5 -49.9 -50.3 -49.3 -49.5 -50.3 -50.8 -52.0 -52.9 150mb Dewpt(C): -82.4 -86.3 -89.4 -88.4 -87.7 -86.0 -81.7 -85.5 -85.8 -85.1 -85.2 -85.8 -86.1 -87.0 -87.6 150mb RH (%): 4 2 1 1 1 1 2 1 1 1 1 1 1 1 1 150mb Dir: 83 111 151 173 200 184 205 204 203 199 204 220 216 236 244 150mb Speed(kt): 18 16 16 26 17 26 37 33 31 29 27 20 15 16 13 100mb GPH (m): 16426 16429 16429 16415 16383 16375 16373 16360 16336 16342 16357 16368 16359 16383 16414 100mb Temp (C): -57.5 -57.2 -56.1 -55.0 -55.6 -53.9 -53.1 -53.7 -52.3 -52.0 -51.3 -51.5 -51.9 -52.2 -53.5 100mb Dewpt(C): -90.9 -90.7 -79.3 -84.7 -85.2 -77.6 -83.3 -83.7 -82.6 -83.2 -100.9 -87.4 -101.5 -82.5 -88.0 100mb RH (%): 1 1 0 2 2 0 2 2 2 2 0 1 0 2 1 100mb Dir: 138 150 193 201 179 195 195 192 200 187 187 193 215 181 205 100mb Speed(kt): 9 12 20 18 19 24 24 27 28 23 26 26 21 13 19