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Weather Blog - March 2009

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Spokane sets record for snowiest winter ever
Mar 30, 2009 at 7:52 PM PDT
Full moon, full moon go away....
Mar 30, 2009 at 10:00 AM PDT
Weekend Time Lapses: Convergence Zone edition
Mar 27, 2009 at 12:00 PM PDT
Miss the 60s? Mother Nature has too...
Mar 26, 2009 at 7:24 PM PDT
Dance lessons not included in KOMO internships
Mar 25, 2009 at 3:00 PM PDT
A chilly blowout: Cold beats warm 73-27
Mar 24, 2009 at 7:20 PM PDT
Where would Mt. Redoubt's ash cloud go?
Mar 23, 2009 at 9:16 PM PDT
Weekend time lapses: Let's go surfing now
Mar 21, 2009 at 12:15 AM PDT
Another "cool" winter statistic
Mar 20, 2009 at 7:30 PM PDT
Big melt seen in Antarctic past -- and maybe future
Mar 18, 2009 at 7:49 PM PDT
Snowflakes take a ride on the Hood Canal
Mar 17, 2009 at 1:00 PM PDT
Sunday's storm in fast forward
Mar 16, 2009 at 8:59 PM PDT
Notes from Sunday's storm
Mar 16, 2009 at 6:42 PM PDT
Seattle now at No. 6 for snowiest winter on record
Mar 16, 2009 at 6:31 PM PDT
Current mountain snowpack information
Mar 16, 2009 at 6:25 PM PDT
How do snowflakes get so large?
Mar 15, 2009 at 7:03 PM PDT
Weather blog: Ever seen clouds parallel park?
Mar 16, 2009 at 6:43 PM PDT
Weekend Time Lapse: Sundog-Brilliant glare edition
Mar 13, 2009 at 9:14 PM PDT
Seattle at No. 8 for snowiest winter on record
Mar 12, 2009 at 9:31 PM PDT
Weather workshop set for March 20/21
Mar 12, 2009 at 8:47 PM PDT
Ever wonder what it'd be like to swim in orange juice?
Mar 11, 2009 at 8:43 PM PDT
Chilly here, downright frigid out east
Mar 11, 2009 at 7:43 PM PDT
Did the radar see this coming?
Mar 11, 2009 at 12:50 AM PDT
Can you help solve this weather mystery?
Mar 11, 2009 at 12:19 AM PDT
February Precipitation Summary
Mar 11, 2009 at 12:13 AM PDT
See the convergence zone in action
Mar 9, 2009 at 9:19 PM PDT
How crazy snow can be around here
Mar 9, 2009 at 7:38 PM PDT
Weekend time lapse: Rainbows edition
Mar 6, 2009 at 9:00 PM PDT
How to gauge a current snow level
Mar 5, 2009 at 10:44 PM PDT
Leprechauns working overtime this weekend
Mar 4, 2009 at 9:04 PM PDT
We say C-YA to NGM MOS
Mar 3, 2009 at 10:32 PM PDT
Weather musings from around the nation
Mar 3, 2009 at 12:11 AM PDT

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About Scott Sistek

Meteorologist

Recent Posts

Weather Brrr! Seattle, Portland briefly tied for coldest major city in lower 48

By Scott Sistek Published: May 22, 2013 at 11:37 AM PDT Last Updated: May 22, 2013 at 1:08 PM PDT

Does it feel a bit like January out there today? Your skin does not deceive you.

A cold system from the Gulf of Alaska has settled into the Pacific Northwest, bringing not only a steady winter-like rain but has kept temperatures stuck in the 40s(!) through the late morning.

In fact, at 11 a.m., Seattle was stuck at 46 degrees -- about the average high for mid January. It's so cold in the Northwest that Seattle and Portland were tied as the coldest major cities in the lower 48 states -- and it wasn't even close! (Boise was at 50. Anchorage was also at 46. If we do lower our population threshold for "major city", Spokane checks in at 41.)

Portland would gradually take the trophy by itself as Seattle later warmed into the low 50s as Portland remained stuck in the mid 40s.

Weather How tornado victims got 36 minutes of precious warning time (Photo Gallery)

By Scott Sistek Published: May 21, 2013 at 12:18 PM PDT Last Updated: May 22, 2013 at 10:43 AM PDT

Thirty-six minutes.

That might not seem very long -- roughly about the time it takes to wade through your hourly drama if you blaze through commercials. But compared to a few decades ago, 36 minutes of time might have saved countless lives during the devastating tornado that struck Moore, Oklahoma on Monday.

Years ago, the residents of Moore would have likely had no idea the tornado was coming until the twister was sighted, giving people barely a few minutes' notice. But thanks to advancements in technology, tornadoes rarely sneak up on anyone anymore.

In fact, forecasters as early as Wednesday began sounding the alarm for a potential severe weather breakout on Sunday and Monday. And, on Friday, the forecasts became more specific. On Monday, a Tornado Watch, which indicates conditions are right for tornadic development, was issued at 1:10 p.m. for much of Oklahoma, including the greater Oklahoma City area.

Weather "What does ''EF-4'' mean?' and other tornado questions answered

By Scott Sistek Published: May 20, 2013 at 4:10 PM PDT

With tornadoes in the news lately I figured it'd be a good time to post answers to some frequently asked questions about the powerful storms:

What does "EF-4" mean?

WIth the devastating tornado in Moore, Oklahoma, you'll be hearing a lot of about "EF" ratings -- that's from the Enhanced Fujita Scale that rates tornadoes on a scale of 0 to 5, 5 being the strongest.

The Moore tornado was given a preliminary rating of EF-4 ("Devastating") with estimated tornadic wind speeds of up to 200 mph, although many are thinking that rating could be increased to an EF-5 ("Incredible") once more damage assessment is done.

Sadly, it's not the first time Moore has had to deal with such a catastrophic storm. On May 3, 1999, Moore was struck by an EF-5 tornado which recorded the strongest wind speed ever registered near Earth's surface. this map provided by the National Weather Service in Norman, Oklahoma shows just how close the two tracks were.

Weather Northern Lights peek out in Eastern Washington (Photo Gallery)

By Scott Sistek Published: May 18, 2013 at 9:57 AM PDT Last Updated: May 19, 2013 at 12:55 AM PDT

As we mentioned in the blog Thursday, there's a particularly active sunspot on the sun right now.

It had, as its opening salvo while starting to face the Earth, unleashed a moderately strong solar flare that reached us late Friday, triggering a display of the Northern Lights that reached as far south as Colorado.

Weather Northern Lights to be visible around the Pacific Northwest soon?

By Scott Sistek Published: May 16, 2013 at 11:33 AM PDT Last Updated: May 16, 2013 at 1:58 PM PDT

The sun has been getting quite active lately, with one sun spot in particular giving off several explosive flares this week, and it could eventually bring some brilliant displays of the Northern Lights to the Pacific Northwest.

Since Monday, Sunspot AR1748 has already given off four "X-class" solar flares -- X being the most powerful class of flares that have potential to disrupt radio and satellite signals. In fact, that flare has given off more X-class flares than every other sunspot of the past year combined, according to spaceweather.com.

Up to this point, the spot has been on a part of the sun not directly facing Earth, so the flares have been directed away from our planet and not really giving us much of an effect.

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