7:00 AM | Showers and isolated thunderstorms possible today; clearing for the weekend

6-Day Forecast

Today

Mostly cloudy, breezy, showers possible, maybe a thunderstorm, chilly, mid 50’s

Tonight

Mostly cloudy, breezy, showers possible, maybe a thunderstorm, chilly, low-to-mid 40’s

Saturday

Becoming mostly sunny, cool, breezy, upper 50’s

Saturday Night

Mostly clear, chilly, low-to-mid 40’s

Sunday

Mostly sunny, breezy, cool, upper 50’s

Monday

Mostly sunny, not as cool, low 60’s

Tuesday

Mostly sunny, milder, mid 60’s

Wednesday

Mostly sunny, mild, mid 60’s

Discussion

A cold upper level low pressure system will generate showers and thunderstorms in the region today and tonight, but it will give way to clearing skies on Saturday and the dry weather will continue on Sunday as well. Even milder weather will develop early next week and highs will return to the middle 60’s by mid-week.

Video

httpv://youtu.be/3rJHdaZp_GY

7:00 AM | Colder air moves back into region for the weekend

6-Day Forecast

Today

Mostly sunny, mild, breezy, highs in the mid 50’s

Tonight

Partly cloudy, cold, lows in the upper 20’s

Saturday

Mostly cloudy, colder, chance for some snow, mid-to-upper 30’s

Saturday Night

Mostly cloudy, cold, some snow likely, upper teens

Sunday

Mostly cloudy, cold, chance for some more snow, mid 30’s

Monday

Mostly cloudy, cold, highs near 30

Tuesday

Partly sunny, cold, upper 30’s

Wednesday

Mostly sunny, milder, mid 40’s

Discussion

Today will still feature above normal temperatures, but then colder air moves back into the southern Rockies this weekend and we’ll have to watch for a possible storm dropping into the desert southwest as it could affect the region with some snow over the weekend.

Video

httpv://youtu.be/3rJHdaZp_GY

7:00 AM | Much colder for the weekend with a chance for snow

6-Day Forecast

Today

Mostly sunny, chilly, breezy, highs in the upper 40's

Tonight

Partly cloudy, cold, lows in the mid 20’s

Friday

Mainly sunny, milder, breezy, mid-to-upper 50’s

Friday Night

Partly cloudy, chilly, upper 20’s

Saturday

Mostly cloudy, colder, chance for some snow, mid 30’s

Sunday

Mostly cloudy, cold, chance for some snow, highs near 30

Monday

Partly sunny, cold, upper 20’s

Tuesday

Mostly sunny, cold, mid 30’s

Discussion

Today will still feature above normal temperatures as will Friday, but then colder air moves back into the southern Rockies this weekend and we’ll have to watch for a possible storm dropping into the desert southwest as it could affect the region with some snow over the weekend.

Video

httpv://youtu.be/7Vr9LPvNkFA

7:00 AM | Cool and wet to close out the week; clearing this weekend

6-Day Forecast

Today

Patchy fog early then becoming partly sunny, cool, upper 50’s

Tonight

Mostly cloudy, showers possible, chilly, lows in the upper 40’s

Friday

Partly sunny, cool, chance for showers, upper 50’s

Friday Night

Mostly cloudy, breezy, showers possible, chilly, low-to-mid 40’s

Saturday

Mostly sunny, breezy, cool, mid 50’s

Sunday

Mostly sunny, cool, upper 50’s

Monday

Mostly sunny, cool, near 60

Tuesday

Mostly sunny, milder, mid 60’s

Discussion

A cold upper level low pressure system will give us a chance for showers tonight through tomorrow night, but it should clear out of here by the weekend and sunshine will return. Snow showers are likely in the mountains as snow levels will drop to quite low levels around 2500 feet or so. Milder weather will develop early next week.

Video

httpv://youtu.be/7Vr9LPvNkFA

7:00 AM | Still mild for the next couple of days, but colder this weekend with a snow threat

6-Day Forecast

Today

Mostly cloudy, cooler than yesterday, but still above normal, breezy, a couple of showers possible, highs in the low 50’s

Tonight

Partly cloudy, cold, lows in the mid 20’s

Thursday

Mainly sunny, mild, low-to-mid 50’s

Thursday Night

Partly cloudy, chilly, near 30

Friday

Mostly sunny, windy, mild, upper 50’s

Saturday

Partly sunny, colder, maybe a few snow showers, mid-to-upper 30's

Sunday

Mostly cloudy, even colder, chance for some snow, near 30

Monday

Mostly sunny, cold, mid 30’s

Discussion

Although cooler than yesterday, today will still feature above normal temperatures as will the next two days. Colder air moves back into the southern Rockies this weekend and we’ll have to watch for a possible storm dropping into the desert southwest as it could affect the region with some snow over the weekend.

Video

httpv://youtu.be/Mkke9io6fzI

7:00 AM | Much cooler and very unsettled towards the end of the week

6-Day Forecast

Today

Patchy fog early then becoming partly sunny, breezy, cool, low 60’s

Tonight

Mostly cloudy, some fog late, cool, lows near 50 degrees

Thursday

Patchy fog early then remaining mostly cloudy, cool, chance for showers late, upper 50’s

Thursday Night

Mostly cloudy, breezy, showers possible, cool, near 50

Friday

Mostly cloudy, breezy, cool, chance for showers and maybe a thunderstorm, mid 50’s

Saturday

Becoming mostly sunny, cool, mid-to-upper 50’s

Sunday

Mostly sunny, cool, upper 50’s

Monday

Mostly sunny, milder, mid 60’s

Discussion

A cold upper level low pressure system will dive southward across interior California later this week and this will bring much cooler and unsettled conditions to the area as the week progresses. Chilly showers are likely in and around the LA metro region by Thursday night and Friday, and snow levels will drop to such low levels that nearby mountains at or above 2500 feet could see snow by Friday. In addition to the chill, winds will be quite gusty later this week and the atmosphere will be unstable enough to allow for the formation of some thunderstorms.

Video

httpv://youtu.be/Mkke9io6fzI

7:00 AM | More late night and early morning low clouds and fog

6-Day Forecast

Today

Patchy fog early then remaining mostly cloudy, cool, low 60’s

Tonight

Mostly cloudy, some fog late, cool, lows near 50 degrees

Wednesday

Patchy fog early then remaining mostly cloudy, cool, near 60

Wednesday Night

Mostly cloudy, some fog late, cool, near 50

Thursday

Patchy fog early then remaining mostly cloudy, cool, upper 50’s

Friday

Mostly cloudy, cool, chance for showers, maybe a thunderstorm, mid 50’s

Saturday

Mostly sunny, cool, mid 50’s

Sunday

Mostly sunny, not as cool, near 60

Discussion

Onshore flow will bring us areas of fog and late night/early morning low clouds right through mid-week. It’ll turn cooler later this week and an area of low pressure will bring the threat for showers by the end of the week. That low should pass us by quickly and sunshine is likely to return for the weekend.

Video

httpv://youtu.be/Q7AnI5yZsB8

7:00 AM | 60 degrees possible for this afternoon; much colder for the weekend

6-Day Forecast

Today

Mostly sunny, unseasonably mild, highs near 60 degrees

Tonight

Partly cloudy, chilly, lows near 30 degrees

Wednesday

Mainly sunny, not quite as mild, low-to-mid 50's

Wednesday Night

Partly cloudy, cold, mid 20's

Thursday

Mostly sunny, mild, mid 50’s

Friday

Mostly sunny, mild, mid 50’s

Saturday

Mostly cloudy, colder, upper 30’s

Sunday

Mostly cloudy, cold, maybe some snow shower activity, mid 30’s

Discussion

West-to-northwest flow will dominate across the region for the next couple of days and this will keep us warm and dry. High temperatures will be well above normal approaching the 60 degree this afternoon and into the low and middle 50's for tomorrow. By later Wednesday, a weak upper level trough will move across the area and this will cause a downward trend in temperatures that will continue into the upcoming weekend. In fact, much colder air should return by the time the weekend rolls around with highs back in the 30’s on both days.

Video

httpv://youtu.be/Q7AnI5yZsB8

1:25 PM | February Outlook - can't quite agree with Punxsutawney Phil

Discussion

The month of February has begun on a cold note thanks, in part, to the lingering effects of the recent major stratospheric warming event. It appears that there will be a break in the cold pattern for about 4 or 5 days during the early and middle parts of next week. What about beyond that? There are a few interesting signals that cold weather will return to much of the nation later in February, perhaps most dramatic in the central Plains, and the overall pattern may get stormier as well with more in the way of “southern” storms rather than these fast-moving “clippers”.

To begin, the sea surface temperatures in the tropical Pacific Ocean have been generally slightly below normal over the past several weeks (weak La Nino). However, there is now a growing area of warmer-than-normal sea surface temperatures just off the west coast of South America – perhaps an early indication of of a more neutral signal or even a very weak El Nino. At the same time, an index called the Southern Oscillation Index (SOI), which gives us an idea as to what state the tropical Pacific Ocean is in, has dropped sharply in recent days well into negative territory, and this too suggests some warming is occurring in that region. The impact of warming waters in the tropical Pacific is that it could very well activate the southern branch of the jet stream here in the US which, in turn, could generate a stormier pattern here later in the month. An active southern branch of the jet stream in the southern US has been noticeably absent in recent days.

Another tropical signal that we monitor here that can give us a clue about our weather in the Mid-Atlantic region is called the Madden-Julian Oscillation (MJO). The current and forecasted MJO index values are suggesting that there are some cold, and perhaps stormier, times ahead in the latter part of February following the expected upcoming temporary milder spell. Specifically, the MJO, which is tracked as it goes through different phases from 1 through 8, is forecasted to go through phases that are typically cold and stormy in the central and eastern US (i.e. through phase 8 and into phase 1).

In addition to the signal coming from the tropics, there are signs that a blocking pattern may set up later this month way up in the northern latitudes (near Greenland) and this typically forces cold air into the US that will be quite sustained if the blocking becomes strong and persistent. The latest ensemble runs of the GFS and Euro computer forecast models indeed suggest that a blocking pattern may develop in the next 10-15 days, and this could lead to a return to colder weather after next week’s temporary break. One way to track the potential developing blocking pattern in the northern latitudes is through the Arctic Oscillation (AO) and North Atlantic Oscillation (NAO) indices and both are showing signs of turning negative later this month which is indicative of a developing blocking pattern.

Bottom line, Phil has come out with a forecast for an early spring and I can’t say that I agree with him as there are some signals which suggest the month of February could feature a return to cold, and perhaps stormy weather conditions, following a temporary break in the temperature pattern next week.

Video

httpv://youtu.be/g_DPKn7Ca8Y

7:00 AM | Onshore flow resumes and brings back some late night and early morning low clouds and fog

6-Day Forecast

Today

Patchy fog early then remaining mostly cloudy, cool, mid 60’s

Tonight

Mostly cloudy, some fog late, cool, lows near 50 degrees

Tuesday

Patchy fog early then remaining mostly cloudy, cooler, near 60

Tuesday Night

Mostly cloudy, some fog late, cool, near 50

Wednesday

Patchy fog early then remaining mostly cloudy, cool, near 60

Thursday

Patchy fog early then remaining mostly cloudy, even cooler, upper 50's

Friday

Mostly cloudy, cooler, chance for showers, mid-to-upper 50’s

Saturday

Mostly sunny, cool, upper 50’s

Discussion

Onshore flow will return to the region late tonight and the result will be lots of clouds for the next few days and some late night and early morning fog; especially, along coastal waters. By Thursday, a cooling trend will begin as a deep trough slides through the region and showers could form by week’s end to go along with the cooler temperatures.

Video

httpv://youtu.be/7pTi2EBNoWs