WeatherWatcher: November 12-18 - the week ahead looks wet

Highlights:

• Wednesday last week seems to have been the day of extremes! Holding the high temperature for the week, the low temperature for the week, and the highest daily rainfall for the week.
• As expected cold air moved in, we had some rain mixed with snow showers Friday no accumulations. A Puget Sound Convergence zone did develop, however it formed over North Lynnwood through Everett, and wasn't very strong or organized. We were on the very southern edge of this convergence band, which formed about 7pm Friday evening and dissipated about 10pm Friday evening.

The week ahead looks very wet!

First, a cold air mass has settled over the area for this weekend, lows are well below freezing, Saturday morning had a low of 28°F, On Sunday morning we were at 28°F.

Second, a warm front will spread increasing clouds over the area Sunday afternoon, and with it, moderating temperatures and eventually rain in the later evening. There is some talk hinting that the rain may start as snow, or rain and snow mixed before turning over to rain, but I believe Shoreline and Lake Forest Park will be warmed up above freezing before the precipitation makes it here.

A series of fronts will blow through the rest of this week with a lot of rain, and warmer temperatures. It could be breezy at times as well. There may be some urban flooding with this. Streams in Lake Forest Park will probably have problems with this week's wet weather expected. A lot of leaves on the ground will also mean storm drains will be blocked in spots leading to lots of areas of standing water.

The extremes:

High temperature: 50.2°F (Wednesday)

Low temperature: 30.7°F (Wednesday)

Wettest day: 0.31 inches (Wednesday)

Total rainfall: 0.69 inches

The averages:

Warmest day: 44.0°F (Sunday)

Coldest day: 35.9°F (Friday - cold air moved in here.)

Average temperature: 39.7°F

This month's daily average temperature's so far compared to November 2010.

Warmest and coldest days are based on average temperature of the entire day, starting at midnight. All other averages are based on the whole week. All weather data unless otherwise noted is sourced from Carl's Shoreline Weather Station.