Archive for September, 2014
Monday Wx Outlook
A frontal system will pass through today and provide us with a an hour or two of moderate rainfall followed occasional light showers through tomorrow. Forecast models also indicate that a healthy Puget Sound Convergence Zone will move south through the city and watersheds after the sun goes down tonight. Brief, perhaps 30-minute […]
[More]Posted: September 29th, 2014 under Uncategorized.
Weekend Wx Outlook
The large, wet system that kicked-off fall yesterday is slowly exiting the region. Post-frontal shower activity, mostly light, will continue today and into tomorrow. As the lowering, but still strong sun tries to poke through the clouds this afternoon, there’s a chance that thunderstorms will develop around us. There are currently no NWS […]
[More]Posted: September 25th, 2014 under Uncategorized.
Storm Recap
The first true storm of the season was a respectable one. While rainfall intensities were not statistically significant, the event did set a new daily precipitation record at Seatac (0.72″). It also provided more rainfall (1.52″) in 24 hours than is normal for the entire month of September (1.50″). Running totals citywide […]
[More]Posted: September 24th, 2014 under Uncategorized.
Tuesday Wx Update
48hr rainfall according to the latest (12km) UW WRF-GFS No major changes to overall rainfall amounts this week, however forecast models continue to adjust the timing of frontal passages—moderate-to-heavy rainfall is presently expected around midnight tonight. Also, this weekend is now looking generally dry but showers cannot be ruled out. The latest NWS […]
[More]Posted: September 23rd, 2014 under Uncategorized.
Monday Wx Outlook
Pre-frontal showers this morning Meteorological fall began three weeks ago, but the atmosphere decided to wait until astronomical fall to deliver quintessentially seasonal weather. A weak frontal system will pass through later today and provide the region with a few more light showers. A stronger system will then arrive tomorrow. Forecast models […]
[More]Posted: September 22nd, 2014 under Uncategorized.
Weekend Wx Outlook
Clouds and scattered showers will linger into tomorrow (Fri) after another weak system passes through the region tonight. Skies will begin to clear tomorrow afternoon, and dry, warm conditions will prevail through the weekend. Forecast models currently show a series of systems affecting the region, perhaps late Monday, and again by late Tuesday/early Wednesday. […]
[More]Posted: September 18th, 2014 under Uncategorized.
Monday Wx Outlook
Hot and smoky After one more day of heat, considerably cooler temperatures will arrive tomorrow, as will cloudiness and a few chances for light rain Wednesday through Saturday. Forecast models are struggling to resolve details toward the weekend, however; the jet stream is actively trying to break down the persistent high pressure that […]
[More]Posted: September 15th, 2014 under Uncategorized.
Weekend Wx Outlook
Strong high pressure off the coast will continue to fend off storm systems and keep high temperatures near or above normal through the weekend. Also, due to “critical combination of wind, low humidity and dry fuels” a NWS Red Flag Warning (fire) is in effect. The National Weather Service currently predicts no rain […]
[More]Posted: September 11th, 2014 under Uncategorized.
Monday Wx Outlook
A broad area of low pressure will pass through the region today. Some light rain is possible overnight tonight, but by later tomorrow high pressure and dry, sunny weather will return. Another run at 80 degrees is likely next weekend. The NWS currently predicts 0.07 inches of rain to fall overnight. The […]
[More]Posted: September 8th, 2014 under Uncategorized.
Weekend Wx Outlook
Dry and relatively warm weather will continue through at least Saturday. The high pressure responsible for the summer reprise is then expected to weaken on Sunday. Forecast models disagree slightly on the extent to which troughing, i.e. decreasing pressure aloft, will occur on Monday (see above). The National Weather Service currently has […]
[More]Posted: September 4th, 2014 under Uncategorized.