We didn’t hit the record, but the high of 75 degrees in Portland today was the warmest since September 19th!
Quite an achievement considering we started with low clouds/fog in some areas this morning and no easterly wind surfacing in the metro area. There was a light east wind in the Gorge the first half of the day with gusts around 30 mph in the Corbett area. A big help was the warmer than expected 850mb temp; it was +11.8 degrees over Salem at 5pm. That easily pushed us into the mid 70s. In past cases, that same temperature with easterly flow has given us a high temp between 78-82 degrees in April, so it could be even warmer! Take a look at the maximum temperature each of the last 9 years in the month of April here in Portland:
Last year we didn’t see 70s until later in the month, when we had a 4 day stretch.
Tomorrow will be a little cooler, but still very warm. A weak cold front sweeps across the region tomorrow night, giving us a quick shot of rain. I expect less than .20″ here in Portland.
Then we get weak ridging through this upcoming weekend. The ECMWF had a chilly trough swinging by just to our east on Saturday, so it was cooler Friday and Saturday. I ignored that since its ensemble members didn’t support that idea. Either solution is dry, so it appears we have very little rain in the next 7 days.
Enjoy the mild and mainly dry weather the next few days! Our 7 day forecast is real pleasant for early-mid April:
Models show temperatures near or maybe a little above average in the next 10-15 days. I sure don’t see a long cool/wet period; more likely just typical warm, then cooler weather periods. You can see this on the 850mb temp chart from the 12z ECMWF and the new 00z GFS:
Chief Meteorologist Mark Nelsen