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You can always see my current weather reading for Peterborough, NH at WeatherCloud.net

 

 

 

 

 

 

Stuff to make using the site easier ..

I use abbreviations for many things:
PB = Peterborough
KE = Keene NH
Precip = Precipitation
SWS = Special Weather Statements
I will continue to add more to this list as I think of them.
I update the forecasts by 7AM and 7PM each day...more frequently if some weather thing is going on. On weekends by 9AM.
Make sure your browser is set to allow "pop-ups" from this site. I use them extensively and there is no danger of any viruses or anything like that.

I am based in Peterborough, NH, but the main forecasts (for now) are for Nashua, NH and the region. I send out an e-mail every Thursday that covers the upcoming weekend forecast. I also send out advisories when issued by the NWS to this list. You will NEVER get SPAM or e-mail from anyone else. I don't share my mail list with anyone. If you'd like to be a part of that mailing, send your e-mail address to: Mail List

What is a "ShortWave"?

Also known as Shortwave Trough; a disturbance in the mid or upper part of the atmosphere which induces upward motion ahead of it. If other conditions are favorable, the upward motion can contribute to thunderstorm development ahead of a shortwave.

MCS = Mesoscale Convective System (Bunch of thunderstorms)

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How I started...

I've been a weather hobbyist all of my life. As a child, I used to stand outside in the rain during thunderstorms just to watch the lightning. Back in the '70s getting weather information was a chore. I remember listening to NWS broadcasts during hurricane season and plotting these on a piece of paper. After moving to New England I finally bought my first real weather station made by Davis Instruments. I began to record daily weather data in a journal. I had a few people, where I work, who knew I was a weather nut, ask me to send them an e-mail on the weekend forecast. So two grew to five then 15, then 40, and now my Thursday weekend mail list reaches over 200+ people. I took some web programming classes in the late '90s and a few years after that RichLefko.com was born. I wanted to share my hobby with anyone who was interested, and I am quite overwhelmed with how many people seem to be interested. I've gotten so many "thank you's" for a variety of reasons..."saved my party", "saved my wedding", "saved my life." It's been fun and rewarding all at the same time.
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Your Information Source for Weather in New England!!   


Breaking Weather Headlines:

Mostly clear and colder tonight - Wintry mix Sunday night/Monday
Hazardous Weather Outlooks are up for Southern NH
Winter weather Advisory for North Central/Western MA Sunday night
- Snowfall estimates

A Christmas miracle? Photographer spots rare white reindeer

It's Been One of the Most Miserable Starts to Winter on Record


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Weather Graphics  

Dry during the daylight hours

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See the Local Weather Discussion below...

 

Welcome to Autumn in New England


Winter arrives on December 21, 2018 at 5:23 PM EST

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Rich's Local Weather Discussion
Regional Weather Discussion

Your Daily Forecast 3 Days at a Time

Updates twice per day, weekdays, at 7:00AM and again by 7:30PM- 9AM/7PM on Weekends
Forecasts are for Southern NH (Nashua) with other locations noted.
(PB = Peterborough, NH) - (KE = Keene, NH)

Last Updated: Saturday, December 15, 2018 6:32 PM

If the Advisory logo above is flashing, go to the Advisories link in the navigation menu,
which can be found on left side of the page. Or click on the links below.

See the Hazardous Weather Outlooks below

Snowfall Estimates - 12/15 - 6PM
Winter Weather Advisory - Central/Western MA - 12/15 - 6PM


Click on any links above to go to the warning pages

New Hampshire and Maine

Hazardous Weather Outlook
National Weather Service Gray ME
308 PM EST Sat Dec 15 2018

MEZ018>028-NHZ005>015-162015-
Interior York-Interior Cumberland-Androscoggin-Kennebec-
Interior Waldo-Coastal York-Coastal Cumberland-Sagadahoc-Lincoln-
Knox-Coastal Waldo-Southern Grafton-Southern Carroll-Sullivan-
Merrimack-Belknap-Strafford-Cheshire-Eastern Hillsborough-
Interior Rockingham-Coastal Rockingham-
Western And Central Hillsborough-
308 PM EST Sat Dec 15 2018

This Hazardous Weather Outlook is for Maine, south central Maine,
southwest Maine, New Hampshire, central New Hampshire, northern New
Hampshire and southern New Hampshire.

Sunday through Friday.

A coastal storm will brush the region Sunday afternoon through
Monday. A general 1-3 inch snowfall across the southern half of New
Hampshire and southern Maine is expected, possibly along with
periods of sleet and light freezing rain. Locally higher snow
amounts of 3 to 4 inches are not out of the question across portions
of central and Midcoast Maine. Confidence is increasing in some
slippery travel for the Monday morning commute.

Northwesterly wind gusts of 30-40 MPH are likely Tuesday.

 

Massachusetts

See the Winter Weather Advisory

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Monday

A 40 percent chance of snow before 10am. Mostly cloudy, with a high near 40. West wind around 5 mph.




PB/KE: : A 30 percent chance of snow before 9am. Mostly cloudy, with a high near 38. West wind 5 to 10 mph.

 

 


 

Monday Night

Mostly cloudy, with a low around 23. Blustery, with a northwest wind 10 to 20 mph.

 

 

 

PB/KE: Mostly cloudy, with a low around 20. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

 


Tuesday

Mostly sunny, with a high near 28.

PB/KE: Mostly sunny, with a high near 24.

 

 

Tuesday Night

 

 

 

 

 

Wednesday

 

 


 

Wednesday Night

 

 

 

 

 

Thursday

 

 

 

 

 

Thursday Night

 

 

 

 

Friday

 


 

Friday Night

 

 

 

 

 

Saturday

 

 

 


 

Saturday Night

Mostly clear, with a low around 25. Northeast wind around 5 mph.

PB/KE: Partly cloudy, with a low around 21. North wind around 5 mph becoming northeast after midnight.

 


 

Sunday

Mostly cloudy, with a high near 37. Northeast wind around 5 mph.

 

 

PB/KE: A chance of freezing rain after 5pm. Mostly cloudy, with a high near 34. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.

 


 

 

Sunday Night

Rain, snow, and sleet before 2am, then rain and snow. Low around 32. North wind 5 to 10 mph. Chance of precipitation is 80%. New snow and sleet accumulation of around an inch possible.

 

 

PB/KE: Freezing rain and sleet likely before 9pm, then snow. Low around 29. North wind 5 to 10 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow and sleet accumulation of 1 to 3 inches possible.

 



Your weekend forecast is always posted on the Thursday morning before the weekend
To see an extended forecast for your zone, look at the Extended Forecast page.  

Links of Interest

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Mystery shipwreck in Michigan draws crowds - Fox News
NASA spacecraft arrives at ancient asteroid, its 1st visitor - AP
145 whales die on New Zealand island after being stranded on beach - Fox Science
See the December 2018 Almanac - RichLefko.com Link
Enormous cow that weighs more than a car is saved from the slaughterhouse - Fox Science
See the current monthly Rainfall & Snowfall data - RichLefko.com
81 Severe Weather Survival Tips Every Homeowner Must Know - Family Handyman
TOXIC LEGACY Poisonous dust from 9/11 attack has given almost 10,000 New Yorkers cancer - The Sun

The 2018 Hurricane Tracking Section is now closed - Richlefko.com link
2017’s Safest Cities in America - See who was #1
Interested in Apple stuff? iPhones, Macs, etc? See all of my articles at MyMac.com
Got a link to share? Send it to me - RichLefko

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Rich's Local Weather Discussion:

12/15 -  6:22 PM: After a pleasant day, temps will drop into the low 20s tonight. A low pressure system will move off the mid Atlantic coast and then track northeast. How close this storm tracks will decide how much freezing precipitation we might see later Sunday into Monday morning. Right now, it looks like this system would bring a light snow event, 1" to 2" with mixed freezing rain or sleet at the start. So while this does not look like a big event, here in Southern NH it should be done around the time of the morning commute. I have posted snowfall accumulation estimates here, and there are Hazardous Weather Outlooks for Southern NH and Winter Weather Advisory for central/Western MA at the moment. Should the track track further east, less snow and rain will fall. Further west, more. Check back in the morning for the latest. Gusty winds kick in Monday as the system passes with much colder air returning to the region. Another storm will affect the region later next week.

SYNOPSIS...NH/ME
Low pressure will move off the Mid Atlantic coast tonight and
then move northeastward to a position south of Nova Scotia
Sunday night and Monday. This system will bring a light mix of
precipitation to the region Sunday night and Monday. Cold and
windy conditions will follow in the wake of the low Monday night
and Tuesday. High pressure moves in midweek, potentially
followed by another storm system by the end of the week.

SYNOPSIS...MA
High pressure builds across northern New England tonight
providing dry chilly weather. Low pressure approaches New
England from the south with rain overspreading the region from
south to north Sunday, although the steadiest and heaviest rain
arrives Sunday evening and overnight. Precipitation will likely
be a mix of sleet and freezing rain across northwest CT into
western-central Mass, then trending toward light snow Sunday
night. Greatest impact will be at the higher elevations where
temperatures will be below freezing. Cold air will push across
the region Monday afternoon through Tuesday as high pressure
builds across the northeast. As the high moves off the eastern
seaboard around mid week, milder air will work in. Low pressure
will develop across the southeast late Thursday, then will shift
toward the region late next week bringing a swath of rain
Thursday night into early next weekend.

*** Wintry mix of precip inland especially High Terrain ***

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/...

Highlights...

* Mainly dry, blustery and cold Monday afternoon and Tuesday
* Mild temperatures return Wednesday through late next week
* Rain, heavy at times from Thursday night through Friday
* A few lingering showers on Saturday with somewhat cooler
temperatures

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12/15 -  9:14 AM: Today will be the mildest day in the last 10, and probably for the next 10. Highs in the upper 40s and low 50s with light winds. Partly cloudy tonight and much colder. Lows in the low 20s. This sets the stage for a graze from a passing offshore low pressure system. This storm will turn into a typical Nor'Easter, but not until it has passed by and is headed for the Maritimes. So light snow, a mix of sleet and freezing rain are likely later Sunday afternoon into Monday. I have posted snowfall accumulation estimates here, and there are Hazardous Weather Outlooks for Southern NH and central/Western MA at the moment. Should the track track further east, less snow and rain will fall. Further west, more. This will impact the Monday AM commute. Stay tuned.

SYNOPSIS...NH/ME
A northwest wind will bringing clearing today with more sunshine
and a brief warm up into the mid to upper 40s. It will cool down
quite a bit tonight as cool air settles in and the temperature
drops back into the teens and 20s. Low pressure emerges off the
Mid Atlantic coast on Sunday and tracks near Cape Cod Sunday
night, passing close enough to bring some light snow especially
to southern and coastal sections. An Arctic cold front slides in
behind the departing low on Monday with a stiff northwest wind
developing and ushering in colder air through midweek.

SYNOPSIS...MA
Weak low pressure tracks well south of New England today, yielding
a few light rain showers/ sprinkles this morning. Otherwise, dry
weather prevails most of today with highs about 10 degrees above
normal. Interior wintry mix while coastal rains Sunday into early
Monday as an area of low pressure sweeps by just SE of New England.
Colder air surges in for the start of the week, with mild conditions
by midweek. Wet weather is forecast for Friday while cold air builds
back in for the following weekend.

LONG TERM /SUNDAY THROUGH FRIDAY/...

*/ Highlights...

- Wintry weather outcomes Sunday through early Monday
- Cold, dry and blustery late Monday into Tuesday
- Mild conditions return Wednesday into Thursday
- Rain forecast for Friday
- Blustery, cold, dry conditions for the following weekend

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Regional Weather Discussion ...

Across the nation today:

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
142 AM EST Sat Dec 15 2018

Valid 12Z Sat Dec 15 2018 - 12Z Mon Dec 17 2018

...Strong storm systems for both the West Coast and East Coast this
weekend...

There will be two main weather features of interest through the weekend.
The first will be a deep and vertically stacked low pressure system slowly
tracking across the southeastern United States, with secondary
cyclogenesis expected to occur near the Mid-Atlantic coast by Sunday
morning. The result will be copious amounts of rainfall from the
southeast coast and Ohio Valley to southern New England. In fact, the
rainfall from this event alone will be enough for some cities across the
East Coast region to establish new annual rainfall records, including
Washington, D.C. Given the warmer nature of this storm system, any winter
weather should be relegated to the higher elevations of interior southern
New England and all rain for the major cities along the Interstate 95
corridor.

The second area of interest will be the West Coast states as a powerful
Pacific storm system approaches the coast Saturday night. The extremely
strong surface low is forecast to weaken as it tracks across the Gulf of
Alaska. However, the trailing cold front will have enough of a pressure
gradient with it to generate strong winds and high waves from northern
California to western Washington, and various wind and surf related
bulletins have been issued regarding these hazards. Heavy rain and high
mountain snow are also expected as the front moves inland, particularly
for northern California and northwest Washington.

Elsewhere across the continental U.S., sunny to partly cloudy conditions
are expected from the Rockies to the Mississippi River as an expansive
high pressure ridge governs the weather pattern through the weekend.
Overall, temperatures are expected to be near to above average for the
majority of the continental U.S. through Monday morning with no major
incursions of arctic air masses expected.

These "discussions" are from the NWS, or WMUR Manchester NH, or me.

 

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