Mark Nelsen
Chief Meteorologist
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Chief Meteorologist Mark Nelsen can be found forecasting weather in most of our evening newscasts. That could be 4 p.m., 5 p.m., 6 p.m., 8 p.m., 9 p.m., 10 p.m., or the 11 p.m. shows. Or sometimes ALL of them.
Mark is a Pacific Northwest “local." He’s spent all of his adult life and almost all of his childhood within a 2 hour drive of Portland.
BORN: Hood River, OR
SCHOOL YEARS: Mt. Angel, OR and Chehalis, WA
COLLEGE: University of Washington. B.S. Atmospheric Science
Mark is proud to be a “weather geek” and we all know what that means! He was one of those kids that turned in late homework because he spent too much time staring out the window.
He tried for several TV jobs straight out of college in the early 1990s but they all told him he “looked like a teenager." Instead Mark took a short stint at a small local company forecasting wind in the Columbia River Gorge. Once he looked like an adult... at 24, Mark was hired by KOIN-TV then moved to FOX 12 in 2000. That’s 28 years on Portland TV!
You might be surprised to find out Mark is a “country person," living only a few brief years in cities. He lives with his wife and two kids near Corbett on farm/forest land. They have quite a few chickens, ducks, and two cats. Mark loves to grow things too. A dozen apple, pear and peach trees are surrounded by berries and a summer garden each year.
One quirk? Mark gets annoyed when you spell his name NelsOn instead of NelsEn. It’s an E not an O!
You can find more from Mark on his very popular FOX 12 Weather Blog.
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Expect cloudier and cooler weather Friday with even a chance for a shower
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The end of spring and beginning of summer has been unusually warm and dry this year. There's no significant change in sight for at least another 7-10 days.
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Sunny skies continue through at least the middle of next week; luckily we'll avoid hot weather MOST of the time
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Mainly cloudless skies are the rule this weekend, but expect gusty northerly afternoon breezes both days
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Surprisingly warm and dry weather (for early June) continues for at least another week in most of the Pacific Northwest
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Did you know Oregon's 2nd largest city disappeared under floodwaters in just one day? And it was just miles from downtown Portland.
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Dry weather until further notice; but cooler Wednesday
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Our wet early spring has suddenly turned not only warm, but unusually dry. It appears we'll stay mainly dry heading into early June as well.
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We've got a brief taste of summer temperatures Thursday and Friday, then a much stronger "onshore" flow of cool Pacific air leads to more cloud cover over the weekend
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Typical May weather has returned this week with strong/chilly onshore flow keeping temperatures close to normal; we'll top out in the mid-upper 60s today.
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We’ll see the layer of ocean-cooled air (the marine layer) thicken a bit tomorrow and Saturday; we’ll spend most of those days in the 70s and just barely reach 80 in the afternoon.
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Expect a slow cooling trend the next few days, but temperatures still remain warmer than normal. That "July feel" continues through Saturday
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Thunderstorms showed up on schedule (and then departed) this evening!
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It's another record setting hot day in Portland; the first time in the month of May we've seen four consecutive 90 degree days
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It's another record hot day (for May) in NW Oregon and SW Washington, and it's going to stay unusually warm this entire work week
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An unusually long spring spell of warm to hot weather has arrived. Expect temperatures to rise heading into the weekend
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Hot weather is on tap for Mother's Day weekend, but heat won't be too extreme
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Expect more warm weather tomorrow and Friday, then hot afternoons for Mother's Day Weekend!
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Parts of the metro area were soaked by evening thunderstorms, but now attention turns toward a record-setting warm Mother's Day Weekend
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After this evening's downpours, we turn dry for at least a week. Temperatures rise into the 90s next weekend for the first time this season
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Showers are ending this evening and we expect a MAINLY dry Sunday. Just a few scattered afternoon showers pop up, mainly over the mountains
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Mostly dry through Wednesday afternoon, then a cool wet pattern returns for a few days
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There is something for everyone the next 3 days: record high temperatures, regular nice warm weather, and gloomy/gray with drizzle
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It’s been a fantastic spring day with mainly sunny skies and a light breeze. Temperatures will top out in the mid-upper 60s today, a few degrees above normal for late April. Skies remain mainly clear tonight and it’ll be relatively mild again; frost is not expected west of the Cascades.
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For the first time since last fall we've got 5 consecutive warm and dry days ahead. All the details including what we're seeing into the first week of May
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We’ve seen a bit more sunshine today, but showers are still lingering late this afternoon. The last showers should end by sunset and that marks the beginning of a 5-day dry spell!Strong high pressure builds and centers itself right along the West Coast tomorrow through Saturday.
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Showers continue through early-mid afternoon Monday, then most of us west of the Cascades dry out by the time the evening commute arrives.
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Hopefully you had a chance to enjoy a warm spring day! Today was the warmest day in over a month in Portland with temperatures reaching the mid-upper 60s with a few spots in the I-5 corridor hitting 70 in the next hour or two. Hang on to that warm weather feeling because it'll be back. But first, two days of cooler, cloudier, and showery weather for Sunday and Monday.
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It's been a cold and wet spring, but we FINALLY see strong signs that temperatures really do warm dramatically for the last week of April
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What a gloomy, chilly, and drippy Thursday! Temperatures have remained in the 40s this afternoon and that’s 10-15 degrees below normal for the date. The good news? Rain ends this evening and we’ll be mainly dry tonight, tomorrow, and Saturday. Temperatures will warm well into the 50s tomorrow and then into the 60s Saturday as the atmosphere overhead warms back to what we typically see in late April.
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What a variety of weather conditions today; a classic Pacific Northwest spring day! We’ve seen a mix of downpours, sunshine, a few rumbles of thunder, and a breezy southwest wind. This weather pattern continues for two more days. So, expect changeable weather from hour to hour through Wednesday as waves of showers move onshore and spread through the region. Tonight, an area of low pressure is moving north along the coastline and will bring a surge of gusty southerly wind too.
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Are you finally looking forward to warm sunshine this week after a wet first half of April? If so, you might want to stop reading now… A cold front moved inland today with steady rain, then off/on showers through the afternoon. Those showers will taper off a bit tonight, but then many more waves of rain move inland over the next week.
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Today is our 3rd consecutive dry day, but we won't be seeing a 4th as we enter another 4-5 day stretch of cool/wet weather starting tomorrow. A weak front is just offshore, sending a few showers onto the northern Oregon coastline this afternoon plus lots of clouds inland. Temperatures will still top our around 60 in the next couple of hours even with the cloud cover. Expect a mild night and mainly dry weather through sunrise Sunday.
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You've got one dry day ahead to get any outdoor projects wrapped up, then lots of rain Sunday into the middle of next week
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It's been unusually cool and wet so far this spring; the coldest since 2011 for many of us
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We've got one more chilly and wet weekend, then it's on to a warmer and drier weather pattern as Easter approaches
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April is just hours away, but winter returns in the Cascades this weekend with a major snowstorm.
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Spring break starts for Oregon kids Friday afternoon, but we've got a bit of wintry weather on the way first!
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During the next two days a cooler airmass will bring the showery weather pattern we often see in spring in the western valleys of Oregon and Washington. A thunderstorm or hail shower could pop up the next two afternoons.
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Enjoy the sunshine Tuesday and most of Wednesday, but then we're headed back into a cool and showery pattern heading into the end of the week
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It was a chilly and wet three weeks, but we've got two more days of the warm & sunny weather. On a positive note, the cool/wet weather has been excellent for building snowpack in the mountains
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Portland hit 60 degrees today, the warmest day so far this season. Expect 2 more warm days, then the chilly showers return on Sunday
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If you've been waiting for warm weather, we've finally got some temperatures in the 60s ahead. But it's only going to last 3 days, then we're headed back to showers by Sunday
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Expect a soaker the next 24 hours! Rain picks up and should be heaviest during and after the morning commute Monday, but drier weather is on the way!
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Today was sure nice, but rainy weather resumes Sunday and continues through at least Tuesday
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Make sure you enjoy the mainly dry weather Saturday, because Sunday will be much cooler and wetter
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Even though we don't see any snow in the lower elevations, cool and wet weather continues the next few days
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February 22nd, 2023 will be remembered for a long time. Just like the "Snowmageddons" of December 2009, and December 2016. But what went wrong?
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Cool and wet for the week, but temperatures rise into the 50s heading into the weekend.
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