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October 2020 Weather Observations for the PNW


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My dp is still below freezing even after the decouple.  That is 100% impressive for October.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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Here's the snow thus far

By far the most impressive October storm I've witnessed here since 2012 when I bought property. Ended up with 9 inches of powder and is currently 22 degrees down from 24 at 9am. 

Just catching up to everything this morning. I think given that the user base of the forum has been somewhat of a close knit community for 15+ years, there is a bit of leeway given when it comes to be

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6 minutes ago, Omegaraptor said:

Two months have actually cooled from 1981-10 to 1991-20 averages.

They are February and March. AFAIK, fall isn't cooling.

 

I thought November was cooling. It seems like we've had a quite a few cold ones this century.  October has been doing pretty well also except that ridiculous torch in 2015.  Not shocked about Feb and Mar.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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Just now, MossMan said:

Down to 34. 

Holy crap!  You always do cool way faster than here.  It's always a steady thing throughout the night here.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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The rate of drop is picking up here.  It's dropped 2 in the last half hour.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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7 minutes ago, snow_wizard said:

I thought November was cooling. It seems like we've had a quite a few cold ones this century.  October has been doing pretty well also except that ridiculous torch in 2015.  Not shocked about Feb and Mar.

Comparing 1981-10 to 1991-19 at PDX it looks like October is up 0.3ºF (54.9 -> 55.2) and November is up 0.2ºF (46.6 -> 46.8). Doubt 2020 will swing those figures too much.

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4 minutes ago, snow_wizard said:

Holy crap!  You always do cool way faster than here.  It's always a steady thing throughout the night here.

Yeah I usually cool fairly rapidly in the evening but will usually stop abruptly before midnight, then usually drop another 2 degrees at daybreak. 

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20 minutes ago, Omegaraptor said:

Looking at the PDX stats for this month it's kinda crazy how we got to October 13 without a single low below 53.

Octobers that start out really warm have often featured a pretty dramatic pattern reversal at some point. 2003, 1996, 1991, 1984, 1971, and 1970 to name a few. It seems the more dynamic October cold airmasses are often marked by that.

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20 minutes ago, Omegaraptor said:

Looking at the PDX stats for this month it's kinda crazy how we got to October 13 without a single low below 53.

And now just over a week and half later they have seen two consecutive highs colder than that.

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Just now, FroYoBro said:

Winds also seem to be dying here. May be the perfect situation to get some cold October lows. We shall see. 

Yeah, it has dropped off noticeably here just after sunset. Kind of crazy to think about the kind of lows some places could see where it goes calm most of the night. Especially if high clouds aren’t much of an issue.

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4 minutes ago, Jesse said:

And now just over a week and half later they have seen two consecutive highs colder than that.

October is the month with largest temp range from beginning to end. 

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5 minutes ago, El_Nina said:

October is the month with largest temp range from beginning to end. 

Why it’s always been one of my favorite months. 

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43 here still got a north breeze going. We usually are the warmest location in the region so no surprise we aren’t cooling off too fast. 

Cold season stats  

Coldest low-30

Coldest high-42

Freezes-1

Monthly rainfall-6.63”

Cold season rainfall-9.80”

Snowfall-0.0”

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SEA was already down to 40 at 7PM.  Color me impressed!

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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34 minutes ago, BLI snowman said:

Octobers that start out really warm have often featured a pretty dramatic pattern reversal at some point. 2003, 1996, 1991, 1984, 1971, and 1970 to name a few. It seems the more dynamic October cold airmasses are often marked by that.

I think 1935 torched really hard before the crash.  1936 had a notable cold snap after a torchy October that began right at the end of the month and went into November.

Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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39 here now.  Just a perfectly steady drop here so far.  Given how low the DP is I would have expected a fast crash and then a bit of leveling out.  I see a number of places are already well down in the 30s.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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39 minutes ago, GHweatherChris said:

Down to a cool 37 after a balmy high of 51.

The 51 is probably several degrees below normal.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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Just dropped a full degree in a couple of minutes.  We're going for the big stuff tonight.  Does anyone know right off hand how long it's been since SEA dropped to freezing this early.  That is something I should know, but I don't.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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7 minutes ago, snow_wizard said:

I think 1935 torched really hard before the crash.  1936 had a notable cold snap after a torchy October that began right at the end of the month and went into November.

Yep. They also seem to come in bunches like that. As do the stupidly warm ones (2015/2014, 1988/1987).

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Just now, GHweatherChris said:

Still not impressive.

Much of the NW is having historic cold for this early.  Sorry you don't believe it.  You might have missed the impressive stat that Portland put up today and a myriad of others that have happened or will happen tonight.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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2 minutes ago, snow_wizard said:

Much of the NW is having historic cold for this early.  Sorry you don't believe it.  You might have missed the impressive stat that Portland put up today and a myriad of others that have happened or will happen tonight.

He is a terrible poster. Just ignore him. 

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4 minutes ago, snow_wizard said:

Much of the NW is having historic cold for this early.  Sorry you don't believe it.  You might have missed the impressive stat that Portland put up today and a myriad of others that have happened or will happen tonight.

I don't live there or the other places, pretty sure I have made that point clear over the years on this forum.  IMBY, WA is the only location that matters. 

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1 minute ago, El_Nina said:

Still a good breeze from the looks of swaying branches. 37

The models were showing the gradients down there would die after 6z (whatever time that is....mid evening sometime).  Up here they have already crashed.

Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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2 minutes ago, GHweatherChris said:

I don't live there or the other places, pretty sure I have made that point clear over the years on this forum.  IMBY, WA is the only location that matters. 

Google Pout GIF

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