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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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Breaking Weather Headlines:

Increasing clouds today - Showers and storms - Some strong - Isolated Tornadoes

There are Hazardous Weather Outlooks

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(See the daily national extremes and the most active weather spot around
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Showers and storms move back into the region

Thunderstorm Risk - Isolated Tornadoes

Regional impacts

Showers Saturday- Better Sunday

Pattern next week

Wild fires continue

The Tropics

There are no current active storms
(Maps in the hurricane section)


Hurricane Section 2018

NOAA now predicting below-normal Atlantic hurricane season in 2018
That’s a significant shift from original predictions, when National Oceanic and Atmospheric Administration forecasters back in May said there was a 70 percent chance for an average to above-average season. Now, NOAA forecasters say there’s only a 10 percent chance of an above-average season. Also, NOAA officials said, sea temperatures in the Atlantic and Caribbean have remained cool. That’s bad for hurricanes, which feed off warm water.


Current Radar

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This Day in Weather History

Today's Daily Extremes

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See the Local Weather Discussion below...

 

Welcome to Summer in New England


Fall arrives on September 22, 2018 at 9:54 PM EDT

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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: Friday, August 17, 2018 6:49 AM

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.

None

Click on any links above to go to the warning pages

New Hampshire and Maine

Hazardous Weather Outlook

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

Today and Tonight.

A warm front will lift north into northern New England this afternoon
and bring showers and thunderstorms with it. The warm and moist air
mass behind the front will be favorable for some strong to severe
thunderstorms. While the primary hazards will be damaging winds and
large hail, an isolated tornado cannot be ruled out near the warm front itself.

Massachusetts

Hazardous Weather Outlook

This Hazardous Weather Outlook is for northern Connecticut, all of
Massachusetts east of Berkshire County, and Rhode Island.

Today and tonight.

A few strong to severe thunderstorms are possible this afternoon and
evening, mainly west of the Boston to Providence corridor. The main
threat is damaging wind but an isolated tornado is also possible.
Heavy rainfall and localized flash flooding is also possible.

Saturday through Thursday.

A few strong thunderstorms are possible Saturday. The primary threats
are locally heavy rainfall and gusty wind.

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Monday

 

 

 


 

Monday Night

 

 


Tuesday

 

 

 

 

 

Tuesday Night

 

 

 

 

 

Wednesday

 

 

 


 

Wednesday Night

 

 

 

 

 

Thursday

 

 

 

 

 

Thursday Night

 

 

 

 

 

Friday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Some of the storms could produce gusty winds and heavy rain. Patchy fog before 9am. Otherwise, increasing clouds, with a high near 83. Calm wind becoming southeast around 5 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

 

 

PB/KE: Showers and thunderstorms likely, mainly after 2pm. Some of the storms could produce gusty winds and heavy rain. Increasing clouds, with a high near 80. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

 

 


 

Friday Night

Showers and thunderstorms likely before 9pm, then showers likely and possibly a thunderstorm between 9pm and 3am, then showers likely after 3am. Some of the storms could produce gusty winds and heavy rain. Patchy fog after 10pm. Otherwise, cloudy, with a low around 72. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

 

PB/KE: Showers and thunderstorms likely before 9pm, then showers likely and possibly a thunderstorm between 9pm and 3am, then showers likely after 3am. Some of the storms could produce gusty winds and heavy rain. Patchy fog before midnight, then patchy fog after 3am. Otherwise, cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

 

 

 

Saturday

Showers likely, mainly before 3pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 81. West wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

PB/KE: Showers likely, mainly before 3pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 77. West wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.


 

Saturday Night

 

A 30 percent chance of showers, mainly before 2am. Mostly cloudy, with a low around 61. North wind around 5 mph.

 

 

 

PB/KE: A chance of showers before 8pm, then isolated showers after 9pm. Mostly cloudy, with a low around 60. North wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.

 

 

Sunday

Partly sunny, with a high near 74. Northeast wind 5 to 10 mph.

PB/KE: Partly sunny, with a high near 71. Northeast wind 5 to 10 mph.

 


 

 

Sunday Night

Scattered showers. Partly cloudy, with a low around 58. Chance of precipitation is 30%.

PB/KE: Scattered showers after 8pm. Partly cloudy, with a low around 56. Chance of precipitation is 30%.



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

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
See the current monthly Rainfall & Snowfall data - RichLefko.com
See the August 2018 Almanac - RichLefko.com Link
Death Valley records the hottest month - The Sun
Massive great white shark filmed just feet away from oblivious paddle boarder - Fox Science
Great white shark caught in Rhode Island waters - Fox Science
2018 Global Weather-Related Disaster Losses At Record Low (So Far) - Climate Depot
The 2018 Hurricane Tracking Section is now open - 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:

8/17 -  6:46 AM: High pressure heads offshore this morning while low pressure is approaching from the Great Lakes. Already storms and showers have broken out in western and central NY State. These will slowly advance eastward today. Expect heavy showers, tropical downpours, and yes, the chance of isolated tornadoes. Showers and storms continue tonight and into Saturday. Looks like the first half of Saturday has the best chance for any shower activity. Showers taper off Saturday night with a partly sunny Sunday on tap. Much cooler Sunday and lower humidity with highs only in the 70s. Stay tuned. Hazardous Weather Outlooks.

SYNOPSIS...NH/ME
High pressure will retreat offshore this morning. Low pressure
will approach from the Great Lakes later today and pull a warm
front north across the area. The low will shift east into the
maritimes Saturday with a trailing cold front pushing offshore
by evening. High pressure will build in from the northeast
Saturday night through Sunday and then hold over the region
Monday and Tuesday. Low pressure will move in from the west
Tuesday night and Wednesday.

SYNOPSIS...MA
Scattered showers and thunderstorms are expected this afternoon
into Saturday as a cold front approaches southern New England.
A few strong to severe storms are possible along with localized
heavy rainfall. This front moves through late Saturday and
Saturday evening. A wave of low pressure is expected to develop
along the front south of New England which may bring showers at
times along with cooler temperatures Sunday into Monday,
especially near the coast. High pressure returns Tuesday but
another approaching front will bring the risk of showers and
thunderstorms Tuesday night into Wednesday. Dry and seasonable
weather follows Thursday as high pressure builds into the
region.

NEAR TERM /UNTIL 6 PM THIS EVENING/...

* Strong to severe thunderstorms are possible later today into
this evening
* Potential for localized damaging winds and flash flooding
* Isolated short lived tornado also possible

LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...
Highlights...

* Cooler Sun/Mon with showers at times, especially near the coast
* Mainly dry Tue, then increasing risk of showers/thunderstorms Tue
night/Wed
* Mainly dry and seasonable Thu

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8/16 -  6:21 PM: A quiet night ahead, and the humidity should tick down a bit. On Friday a low pressure system, currently forming over the Great Lakes will track east and bring more showers and thunderstorms. If there is any sunshine in the morning, those afternoon or evening thunderstorms may be strong to severe. There is the possibility of tornado formation down in MA. Showers will continue Friday night. I will discuss this in more detail in tonight's every Thursday evening e-mail blast going out to subscribers. Please join the list by clicking the link below. This is the same list I use for winter storm warnings and advisories. More rain arrives by mid next week.

SYNOPSIS...NH/ME
High pressure will crest over the region this evening before
shifting east after midnight. Low pressure will approach from
the west on Friday and will gradually move east through the
region Friday night. Low pressure will shift east into the
maritimes Saturday and a trailing cold front will push offshore
by evening. High pressure will build in from the northeast
Saturday night through Sunday and will hold over the region
Monday and Tuesday. Low pressure will move in from the west
Tuesday night and Wednesday.

SYNOPSIS...MA
Showers and thunderstorms will be on the increase Friday into
Saturday as a cold front approaches southern New England. This
front moves through late Saturday, followed by mainly dry and
cooler weather Sunday into Tuesday as high pressure builds in
from the north. The humidity will return by Wednesday leading to
the risk of more showers and thunderstorms.

SHORT TERM /6 AM FRIDAY MORNING THROUGH 6 PM FRIDAY/...
* Potential for strong/severe storms later Fri into Fri evening
* Localized wind damage/flash flooding possible
* Isolated short-lived tornado also possible

LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/...
Highlights...

* Showers/thunderstorms likely Saturday across a good portion of
southern New England
* Locally heavy rainfall possible, along with the potential for
a few strong to severe storms Saturday
* Mild to warm days and cool nights Sun/Mon/Tue
* More humid with increasing risk of showers/thunderstorms Tue
night/Wed

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Regional Weather Discussion ...

Across the nation todya:

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
336 AM EDT Fri Aug 17 2018

Valid 12Z Fri Aug 17 2018 - 12Z Sun Aug 19 2018

...Slight risk of severe thunderstorms and flash flooding for the
Northeast with heavy rainfall impacting areas from the Mid-Atlantic to the
Southeast...

...Monsoonal rains may lead to flash flooding across the Southwest...

...Fire weather continue for the western U.S. through tonight...

Active weather is expected across regions from the Northeast to the
Tennessee Valley southward into the southern Plains today. A front slowly
pushing eastward combined with with deep southerly flow pulling abundant
moisture northward will create an environment conducive to showers and
thunderstorms. By this afternoon and evening, scattered to widespread
thunderstorms are expected especially across the Northeast, Mid-Atlantic
and Ohio Valley. Heavy rainfall is expected particularly along the surface
front lifting northward into the Northeast and New England where there is
a chance of excessive rainfall. In addition, a slight risk of severe
thunderstorms is also expected for parts of the Northeast and New England
this afternoon. Another batch of heavy rainfall will concentrate across
parts of the Southeast and Tennessee Valley. By Saturday, the front will
be draped across the Mid-Atlantic and into the southern Plains--creating
more rounds of convection across these regions along with much of the
Southeast. Some lingering showers can be expected for the Northeast;
however most of the heavier precipitation will be farther south. By
Sunday, as the front sinks south and east, precipitation will begin to
taper off across the Mid-Atlantic while continuing across the Southeast
and southern Plains.

Monsoonal moisture will continue to move into the Southwest which will
fire off convection throughout this region through the weekend. Most of
the activity will occur in the late afternoon and evening. Flash flooding
will be a concern for areas in favorable terrain and urban regions. Check
the latest WPC excessive rainfall outlook to see which areas are of the
most concern. Fire weather will be a concern for areas across the Pacific
Northwest and Intermountain West today as isolated thunderstorms could
trigger additional fires via lightning. Gusts from these thunderstorms
could also quickly spread fires. Most of this area is under a red flag
warning which expires tonight. By Saturday, a cold front will move south
across this region bringing showers and thunderstorms from the northern
Plains to western Montana. By the end of the weekend, thunderstorms across
the Plains can be expected--where there is a marginal risk for severe
thunderstorms for the High Plains and a slight risk of excessive rainfall
for parts of the southern Plains.

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

 

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